WO2009104673A1 - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
WO2009104673A1
WO2009104673A1 PCT/JP2009/052872 JP2009052872W WO2009104673A1 WO 2009104673 A1 WO2009104673 A1 WO 2009104673A1 JP 2009052872 W JP2009052872 W JP 2009052872W WO 2009104673 A1 WO2009104673 A1 WO 2009104673A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
absorbent article
sheet
diaper
absorbent
Prior art date
Application number
PCT/JP2009/052872
Other languages
French (fr)
Japanese (ja)
Inventor
友美 奥
智 坂口
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008037916A external-priority patent/JP5130075B2/en
Priority claimed from JP2008093816A external-priority patent/JP5379991B2/en
Priority claimed from JP2009026246A external-priority patent/JP5566612B2/en
Priority claimed from JP2009026255A external-priority patent/JP5566613B2/en
Priority claimed from PCT/JP2009/052646 external-priority patent/WO2009104581A1/en
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to MX2010009134A priority Critical patent/MX2010009134A/en
Priority to CN2009801057555A priority patent/CN101945631A/en
Priority to AU2009216183A priority patent/AU2009216183A1/en
Priority to CA2715999A priority patent/CA2715999A1/en
Publication of WO2009104673A1 publication Critical patent/WO2009104673A1/en
Priority to MA33182A priority patent/MA32198B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49466—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the waist region

Definitions

  • the present invention relates to an absorbent article such as a diaper.
  • Patent Document 1 a diaper having an absorbent main body composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber is widely known (for example, Patent Document 1).
  • the diaper 100 includes a liquid-permeable top sheet 101a, a liquid-impermeable back sheet 101b, and an absorbent body 101c disposed between the sheets 101a and 101b.
  • the absorptive main body 101 is provided.
  • the absorber 101c absorbs the liquid and holds the liquid.
  • the absorbent main body 101 has a dorsal region S1, a crotch region S2, and a ventral region S3 in the longitudinal direction L from the back side Ba to the ventral side Fr, and from the back side Ba to the ventral side Fr with the crotch of the wearer as a center. Cover.
  • a pair of left and right side flap portions 110 formed by extending the top sheet 101a and the back sheet 101b are provided on both sides in the width direction W of the absorbent main body 101.
  • the width direction W of the absorbent main body 101 is a direction orthogonal to the longitudinal direction L from the back side Ba to the ventral side Fr in the plan view of the diaper 100.
  • Each side flap portion 110 is provided with an elastic member 120 in an elongated state in the longitudinal direction L.
  • the pair of elastic members 120 are provided to be curved in the longitudinal direction L of the absorbent main body 101 instead of being straight. Thereby, the distance between the pair of elastic members 120 is set wider in the ventral region S3 than in the dorsal region S1.
  • the diaper 100 can be fitted along the wearer's throat portion when worn, the wearability is excellent, and a space is formed between the ventral side Fr of the diaper 100 and the wearer. In this space, urine can be temporarily held, and leakage of urine can be prevented as much as possible.
  • Patent Document 2 there is one disclosed in Patent Document 2. Specifically, as shown in FIG. 2, the diaper 100A is disposed between the liquid-permeable top sheet 101d, the liquid-impermeable back sheet 101e, and the sheets 101d and 101e, as with the diaper 100. An absorbent main body 101A including the absorbent body 101f is provided.
  • the distance between the pair of elastic members 120A is different from the configuration of the diaper 100 in that the dorsal region S1 is set wider than the ventral region S3.
  • the diaper 100 ⁇ / b> A can be fitted so as to wrap the wearer's hips when worn, so that the wearability is excellent.
  • JP 11-47189 A page 2-3, FIG. 1
  • Japanese Patent Laid-Open No. 10-243961 page 3, FIG. 1
  • the distance between the pair of left and right elastic members 120 is curved so as to be different in the back region S1, the crotch region S2, and the abdominal region S3.
  • the elastic member 120 (elastic member 120A) is curved and arranged, the processing is complicated.
  • an object of the present invention is to provide an absorbent article that can be fitted to a wearer and can reduce the amount of materials used and facilitate the processing during manufacture.
  • a feature of the present invention is that it is disposed between a liquid-permeable top sheet (top sheet 3), a liquid-impermeable back sheet (back sheet 4), and between the top sheet and the back sheet, and absorbs liquid.
  • an absorbent body aborber body 5 that is held and held, and when worn, in the longitudinal direction L from the back side Ba to the abdominal side Fr in the longitudinal direction L (back side area S1), crotch area (inseam area S2), abdomen
  • An absorbent main body (absorbent main body 2) having a side region (ventral side region S3) and a pair of left and right side flap portions (side flap portions 10) provided on both sides in the width direction W of the absorbent main body.
  • the ventral region of each side flap portion was provided with a ventral stretch region (ventral stretch region 15) stretched in the waistline direction (width direction W). This is the gist.
  • the size of the abdomen around the absorbent main body and the pair of side flap portions becomes wider than the other parts depending on the abdominal stretch region, so it is worn when worn.
  • the absorbent article can be fitted along the heel portion of the person.
  • the absorbent article is excellent in wearability, and forms a space between the absorbent main body and the abdomen Fr of the pair of side flap portions and the wearer, and urine can be temporarily held by this space. It is possible to prevent urine leakage as much as possible.
  • the ventral region is formed by extending a part of the pair of side flap portions, the ventral side Fr of each side flap portion is formed larger in the waist direction than the other portions, that is, the waist side of the ventral side Fr.
  • the edge in the direction does not have to be provided in a curved shape.
  • the absorbent article can be fitted along the wearer's throat portion when worn, and a space can be formed between the stomach side Fr of the absorbent article and the wearer. Thus, it is possible to reduce the amount of materials used, facilitate processing, and reduce costs associated with these.
  • a feature of the present invention is that it is disposed between a liquid-permeable top sheet (top sheet 3), a liquid-impermeable back sheet (back sheet 4), and between the top sheet and the back sheet, and absorbs liquid.
  • an absorbent body aborber body 5 that is held and held, and when worn, in the longitudinal direction L from the back side Ba to the abdominal side Fr in the longitudinal direction L (back side area S1), crotch area (inseam area S2), abdomen
  • An absorbent main body (absorbent main body 2) having a side region (ventral side region S3) and a pair of left and right side flap portions (side flap portions 10) provided on both sides in the width direction W of the absorbent main body.
  • the back side region of each side flap part is provided with a back side extended region (back side extended region 14) extended in the waistline direction (width direction W).
  • the size of the waistline width of the back side Ba of the pair of side flap portions is widened by the back-side stretched region, so the back side Ba of the absorbent main body and the pair of side flap portions. It can be fitted to wrap your hips, and it is easy to wear.
  • a space can be formed between the wearer and the absorbent main body in a state where the buttocks are wrapped with the back side Ba of the absorbent main body and the pair of side flap portions, excrement discharged by the space can be formed. It can be temporarily held, and the leakage of excrement can be prevented as much as possible.
  • the dorsal stretch region is formed by stretching a part of the pair of side flap portions, the dorsal side Ba of each side flap portion is formed larger in the waistline direction than the other portions, that is, around the waist of the back side Ba
  • the edge in the direction does not have to be provided in a curved shape. From the above, it is possible to fit the wearer's hip so as to wrap the wearer's hips, and it is possible to reduce the materials used, facilitate the processing, and reduce the costs associated therewith.
  • the present invention it can be fitted to the wearer, and it is possible to reduce the amount of materials used and facilitate the processing during manufacturing.
  • FIG. 1 is a plan view showing a developed state of a conventional diaper.
  • FIG. 2 is a plan view showing an unfolded state of a conventional diaper.
  • FIG. 3 is a plan view showing a developed state of the diaper according to Embodiment 1-1 of the present invention.
  • FIG. 4 is a cross-sectional view taken along line AA of the diaper (FIG. 3) according to the 1-1 embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of the diaper (FIG. 3) according to the 1-1 embodiment of the present invention taken along line BB.
  • 6 is a cross-sectional view taken along line BB of FIG. 3 when the diaper according to the first to first embodiments of the present invention is worn.
  • FIG. 1 is a plan view showing a developed state of a conventional diaper.
  • FIG. 2 is a plan view showing an unfolded state of a conventional diaper.
  • FIG. 3 is a plan view showing a developed state of the diaper according to Embodiment 1
  • FIG. 7 is a plan view showing a developed state when the diaper according to the first to first embodiments of the present invention is worn.
  • FIG. 8 is a sectional view of an essential part of a stretching apparatus for producing a diaper according to Embodiment 1-1 of the present invention.
  • FIG. 9 is a plan view of a diaper according to the first to second embodiments of the present invention.
  • FIG. 10 is a cross-sectional view of a diaper according to Embodiment 1-3 of the present invention.
  • FIG. 11 is a cross-sectional view of a diaper according to Embodiment 1-4 of the present invention.
  • FIG. 12 is a plan view showing a developed state of the diaper according to Embodiment 1-5 of the present invention.
  • FIG. 13 is a cross-sectional view taken along the line CC of the diaper according to the first to fifth embodiments of the present invention.
  • FIG. 14 is a sectional view taken along line DD of the diaper according to Embodiment 1-5 of the present invention.
  • 15 is a cross-sectional view taken along the line DD of FIG. 12 when the diaper according to the first to fifth embodiments of the present invention is worn.
  • FIG. 16 is a plan view showing a developed state when the diaper is worn according to the first to fifth embodiments of the present invention.
  • FIG. 17 is a plan view of a diaper according to Embodiment 1-6 of the present invention.
  • FIG. 18 is a plan view of a diaper according to Embodiment 1-7 of the present invention.
  • FIG. 19 is a cross-sectional view of a diaper according to Embodiment 1-8 of the present invention.
  • the development state of a figure is shown.
  • FIG. 20 is a cross-sectional view of a diaper according to Embodiment 1-9 of the present invention.
  • the development state of a figure is shown.
  • FIG. 21 is a cross-sectional view of a diaper according to Embodiment 2-1 of the present invention.
  • FIG. 22 is a plan view of a developed state of the diaper according to the 2-2 embodiment of the present invention.
  • 23 is a cross-sectional view taken along line A1-A1 of FIG. 24 is a cross-sectional view taken along line B1-B1 of FIG.
  • FIG. 25 is a plan view of a diaper showing the distance of moisture permeation.
  • FIG. 26 is a plan view of a diaper showing the distance of moisture permeation.
  • FIG. 27 is a cross-sectional view of the stretching apparatus.
  • FIG. 28 is a cross-sectional view showing a diaper according to Embodiment 2-3 of the present invention.
  • FIG. 29 is a sectional view showing a diaper according to Embodiment 2-4 of the present invention.
  • FIG. 30 is a cross-sectional view showing a diaper according to Embodiment 2-5 of the present invention.
  • FIG. 31 is a plan view showing a diaper according to Embodiment 2-6 of the present invention.
  • FIG. 32A is a perspective view of a conventional diaper
  • FIG. 32B is a plan view when another conventional diaper is developed.
  • FIG. 33 shows a diaper according to Embodiment 3-1 of the present invention, and is a plan view of the diaper in a developed state.
  • 34 shows a diaper according to Embodiment 3-1 of the present invention, and is a cross-sectional view taken along line A2-A2 of FIG.
  • FIG. 35 is a cross-sectional view taken along line B2-B2 of FIG. 33, showing a diaper according to Embodiment 3-1 of the present invention.
  • 36 is a cross-sectional view taken along line B2-B2 of FIG. 33, showing a diaper according to Embodiment 3-1 of the present invention.
  • FIG. 37 is a cross-sectional view of a main part of the stretching apparatus.
  • FIG. 38 shows a diaper according to Embodiment 3-1 of the present invention, wherein (a) is a plan view before the center of the crotch region of the side flap portion is pulled outward, and (b) is one side flap portion. It is a top view in the state where the central end of the crotch region was pulled outward.
  • FIG. 39 is a cross-sectional view of a diaper according to Embodiment 3-2 of the present invention.
  • FIG. 40 is a cross-sectional view of a diaper according to Embodiment 3-3 of the present invention.
  • FIG. 41 is a plan view of a diaper in a developed state according to the third to fourth embodiments of the present invention.
  • FIG. 42 is a plan view of a developed state of a diaper according to Embodiment 3-5 of the present invention.
  • FIG. 43 is a plan view of a conventional diaper.
  • FIG. 44 is a plan view showing a diaper in a developed state according to the fourth to fourth embodiments of the present invention.
  • FIG. 45 shows a fourth embodiment of the present invention and is a cross-sectional view taken along line AA of FIG.
  • FIG. 46 is a sectional view taken along line BB of FIG. 44, showing the 4-1 embodiment of the present invention.
  • FIG. 47 is a cross-sectional view taken along the line CC of FIG. 44, showing the 4-1 embodiment of the present invention.
  • FIG. 48 is a plan view showing a fourth embodiment of the present invention and showing a mounted state.
  • FIG. 49 is a sectional view of a stretching apparatus according to the 4-1 embodiment of the present invention.
  • FIG. 50 is a side view of a mounted state according to the fourth embodiment of the present invention.
  • FIG. 51 shows a 4-2 embodiment of the present invention, where (a) is a plan view before wearing, and (b) is a plan view after wearing.
  • FIG. 52 shows a 4-3 embodiment of the present invention, wherein (a) is a plan view before wearing, and (b) is a plan view after wearing.
  • FIG. 53 is a plan view of a diaper in a developed state, showing Embodiment 4-4 of the present invention.
  • FIG. 3 to 7 show a diaper 1A according to Embodiment 1-1 of the present invention.
  • FIG. 3 shows a plan view of the diaper deployed.
  • 4 shows a cross-sectional view taken along line AA of FIG.
  • FIG. 5 is a sectional view taken along line BB of FIG.
  • FIG. 6 shows a cross-sectional view in a worn state.
  • FIG. 7 is a plan view showing the worn state in a developed state.
  • the back side Ba and the ventral side Fr are determined, and the back side region S1, the crotch region S2, and the abdomen are sequentially arranged along the longitudinal direction L from the back side Ba toward the ventral side Fr.
  • a side region S3 is provided.
  • a diaper 1A as an absorbent article includes an absorbent main body 2, a pair of left and right side flap portions 10 provided on both sides in the width direction W of the absorbent main body 2, and a pair of The back side waist flap part 20 and a pair of ventral side waist flap part 21 are provided.
  • the back waist flap portions 20 are provided at both ends in the width direction W of the back side Ba of the pair of side flap portions 10.
  • the ventral side waist flap portions 21 are provided at both ends in the width direction W of the ventral side Fr of the pair of side flap portions 10.
  • the absorbent main body 2 includes at least a liquid-permeable top sheet 3, a liquid-impermeable back sheet 4, and an absorber 5 that is disposed between the top sheet 3 and the back sheet 4 and absorbs and holds liquid. Composed.
  • the absorptive main body 2 has a dorsal region S1, a crotch region S2, and a ventral region S3 along a longitudinal direction L from the dorsal side Ba to the ventral side Fr.
  • the absorptive main body 2 covers the wearer's back side Ba, crotch side, and ventral side Fr.
  • both end portions in the width direction W are folded so as to wrap the absorber 5.
  • the folded portion of the top sheet 3 and the absorbent body 5 are joined to the back sheet 4 by glue such as hot melt.
  • the top sheet 3 is a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, a hydrophobic nonwoven fabric having apertures, or a laminated nonwoven fabric manufactured by a spunbond method / melt blow method / spunbond method having a basis weight of 10 g / m 2. (Hereinafter referred to as SMS) or the like.
  • the back sheet 4 is formed of a non-breathable film having a basis weight of 23.5 g / m 2 .
  • the back sheet 4 may be formed of a moisture permeable or moisture impermeable film, a sheet obtained by laminating a nonwoven fabric to such a film, or the like.
  • the absorber 5 is a laminate having liquid absorption retention. Specifically, the absorbent body 5 is formed by mixing absorbent pulp and superabsorbent polymer.
  • the pair of side flap portions 10 includes a back sheet 4 extending from both sides in the width direction W of the absorbent main body 2, and a liquid-impermeable exterior sheet superimposed on the back surface of the absorbent main body 2 and the back sheet 4. 11.
  • the back sheet 4 and the exterior sheet 11 are joined with paste such as hot melt.
  • the exterior sheet 11 is formed to have a longer dimension in the width direction W than the back sheet 4.
  • the outer three rows of elastic members 12 a to 12 c are provided on both sides of the exterior sheet 11 formed longer in the width direction W than the back sheet 4.
  • the innermost elastic member 12d is disposed approximately at the center between the side edge of the absorbent main body 2 and the outermost elastic member 12a.
  • the elastic member 12 d is provided between the exterior sheet 11 and the back sheet 4.
  • Each of the elastic members 12a to 12d is, for example, a polyurethane elastic yarn.
  • each of the ventral-side stretched regions 15 is disposed on the most absorbent main body 2 side in the outer three rows of elastic members 12a to 12c provided on the side flap portion 10 from the side edge of the absorbent main body 2. It is provided between the inner side of the elastic member 12c.
  • Each ventral stretch region 15 is a region having a lower basis weight than other regions by stretching.
  • Each ventral region 15 has a dense portion (not labeled) with a small stretch amount and a rough portion (not labeled) with a large stretch amount alternately along the width direction W of the side flap portion 10. Is provided.
  • Each ventral stretch region 15 is stretched in a range of 1.5 to 3.0 times as compared with that before stretching. If the stretch amount of each ventral stretch region 15 is less than 1.5 times, the rising dimension of the side flap portion 10 is small in the vertical direction, and the elastic members 12a, 12b, and 12c may not adhere to the skin.
  • each ventral stretch region 15 exceeds 3.0 times, damage due to stretching is large and material damage such as tearing or perforation may occur. If the stretch amount of each ventral stretch region 15 is in the range of 1.5 to 3.0 times, a space, so-called pocket, can be formed between the absorbent main body 2 and the skin without fear of material damage.
  • Each ventral stretch region 15 has transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each ventral stretched region 15 is a transmittance that allows the inside to pass from the outside. The light transmittance rises by 3% or more due to stretching, and if the light transmittance is 61% or more (measured according to JIS standard K7105), the internal excrement can be visually recognized from the outside.
  • each ventral stretch region 15 of this embodiment is provided in the width direction W of the side flap portion 10 over almost the entire region between the absorbent main body 2 and the outermost elastic member 12a.
  • Each ventral extension region 15 is provided in the longitudinal direction L of the side flap portion 10 over the entire range of the ventral region S3 so as to reach the edge of the ventral region S3.
  • each abdominal stretch region 15 does not extend to the crotch region S2 or the back region S1. A specific method for producing the ventral stretch region 15 will be described in detail below.
  • the waist flap portion is composed of a pair of back side waist flap portions 20 and a pair of ventral side waist flap portions 21.
  • One end of the pair of back-side waist flap portions 20 is fixed to the back-side region S ⁇ b> 1 of the pair of side flap portions 10.
  • a locking portion 22 is provided on the distal end side of each back waist flap portion 20.
  • Each locking portion 22 is a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force.
  • the material of the abdominal side waist flap portion 21 is a sheet material whose surface is at least a nonwoven fabric.
  • FIG. 8 is a cross-sectional view of the stretching apparatus.
  • the side flap portion 10 is coated using a spiral spray so that a heat-sensitive adhesive (for example, hot melt, etc., hereinafter referred to as HMA) is 15 mm in diameter and has a basis weight of 5 g / m 2.
  • HMA heat-sensitive adhesive
  • the back sheet 4 is a non-breathable film having a basis weight of 23.5 g / m 2 .
  • the exterior sheet 11 is an SMS having a basis weight of 13 g / m 2 .
  • the stretching device 30 that forms the ventral-side stretched region 15 has a pair of stretched blade rows 31 that face each other and can be engaged with each other.
  • Each stretched blade row portion 31 has a blade depth of 2.5 mm, a pitch between a pair of blades of 1.25 mm, and a number of blades of 17.
  • the stretching device 30 performs a stretching process at a set temperature of the stretching blade row portion 31 of 100 ° C. By stretching in this manner, the ventral-side stretched region 15 can be stretched 1.8 times when compared to before stretching.
  • a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided in the ventral stretch region 15 along the width direction W (the waistline direction) of the side flap portion 10. It is done.
  • the width W2 (FIGS. 6 and 7) is 1. It is preferably in the range of 5 to 3.0 times.
  • the width W1 extends from the side edge of the absorbent main body 2 at the portion where the width of the side flap portion 10 is the narrowest when extended in the width direction W to the outer three rows of elastic members 12a to 12 provided on the side flap portion 10.
  • it is the width
  • the width W2 is a width from the side edge of the absorbent main body 2 to the vicinity of the inner side on the elastic member 12c side in a portion where the width of the side flap portion 10 is the widest when it is extended in the width direction W.
  • the width W2 is the width of the side flap portion 10 serving as a reference after the drawing process.
  • the width W2 is less than 1.5 times the width W1
  • the stretch amount of the ventral stretch region 15 that has been reduced in basis weight by stretching is short, so the side flaps from the side of the absorbent body 2
  • the distance to the elastic member arrangement part of the part 10 becomes short, and the accommodation space for urine leaking from the absorber 5 becomes narrow. For this reason, excrement passes over the elastic member arrangement
  • the stretched amount of the ventral stretched region 15 that has been reduced in basis weight by stretching is long, so the material is easily damaged and stretched. There is a high possibility of material damage such as drilling and holes. As a result, when the material is damaged, urine leaks from the damaged part.
  • the width of the outer edge of the side flap portion 10 from the side edge of the absorbent main body 2 when the side flap portion 10 is extended in the width direction W is the same as described above. Is preferably 1.5 times to 3.0 times the narrowest width for the same reason as above.
  • each side flap portion 10 comes into close contact with the wearer's legs due to the contraction of the elastic members 12a to 12d. Further, as shown in FIG. 7, the ventral region S3 in which the ventral stretch region 15 is formed spreads in the width direction W when worn by a distance that is stretched and reduced in basis weight.
  • the back side region S1 since the back side region S1 is not stretched, the back side region S1 does not expand beyond the original width even if the back side region S1 is stretched in the width direction W when worn.
  • the distance between the elastic members 12a to 12d is similarly worn on the body with the distance between the elastic members 12a to 12d on the ventral side Fr being longer than the back side Ba. .
  • the diaper 1A can be fitted along the wearer's throat when worn, the diaper 1A is excellent in wearability.
  • a space so-called pocket, is formed between the absorbent main body 2 and the ventral side Fr of the pair of side flap portions 10 and the wearer.
  • the diaper 1A can temporarily hold urine by a pocket and can prevent urine leakage as much as possible.
  • region 15 is formed by extending
  • FIG. For this reason, in the manufacturing process of the diaper 1A, it is not necessary to form the ventral side Fr of each side flap part 10 larger in the width direction W than other places. That is, the diaper 1A does not need to provide the edge in the width direction W of the ventral side Fr in a curved shape in the manufacturing process.
  • the diaper 1A that can be fitted to the wearer and can form a space between the abdomen Fr of the absorbent main body 2 and the wearer, reduction of materials used, facilitation of processing,
  • the diaper 1A can achieve the cost reduction accompanying these.
  • the elastic members 12a, 12b, 12c can be arranged in a vertical straight line on the side flap portion 10 for manufacturing, the processing steps can be simplified. Further, the ventral-side stretched region 15 of the side flap portion 10 is formed by being stretched in the width direction W by stretching, and a substantially linear material can be used for the side flap portion 10 before stretching. For this reason, in the manufacturing process of the diaper 1A, waste of materials due to punching can be eliminated and processing can be facilitated.
  • surroundings near a wearer's inseam is the thin soft abdominal-side extending
  • the diaper 1A can reduce discomfort.
  • the diaper 1A can improve the followability to the wearer's hip movement.
  • the ventral-side stretched region 15 has an advantage that it can easily stand up in the vertical direction with respect to the absorbent main body 2.
  • the ventral stretch region 15 reaches the end edge of the ventral side Fr, but may be provided so as not to reach the end edge of the ventral side Fr. However, it is preferable from the viewpoint of fit to the wearer that the ventral stretched region 15 is provided until reaching the end edge of the ventral Fr as in this embodiment.
  • each ventral stretch region 15 is provided between the absorbent main body 2 and the elastic member 12a located on the outermost side. That is, each abdominal stretch region 15 is provided in a region closer to the absorbent main body 2 than a center line that is equally divided in the width direction W between the side edge of the absorbent main body 2 and the elastic member 12a located on the outermost side. Therefore, there are the following advantages. Even in a diaper 1A in which elastic members 12a to 12d are provided on a pair of side flap portions 10, it is only necessary to provide elastic members on each side flap portion 10 in a straight line. Therefore, diapers with elastic members can be easily processed. Therefore, the cost can be reduced.
  • the diaper 1A when worn, it begins to bend at a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2 and the side flap portion 10, but in this embodiment, this portion is a flexible ventral side stretch. Since it is the region 15, the rising characteristics are good.
  • each abdominal stretch region 15 has a transparency that allows the internal excrement to be visually recognized from the outside at the time of wearing, so that the presence or absence of the excrement inside the diaper 1A can be confirmed from the outside through the ventral stretch region 15. For this reason, the diaper 1A can easily determine the replacement time and the like.
  • each ventral stretch region 15 is provided with a dense portion having a small stretch amount and a rough portion having a large stretch amount alternately along the width direction W of the side flap portion 10. Therefore, in the manufacturing process of the diaper 1A, the ventral stretched region 15 is configured by being alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 10 is linear without protruding. That is, the diaper 1A is improved in handling in the manufacturing process, product packaging process, and the like.
  • FIG. 9 is a plan view of a diaper 1B according to the first to second embodiments of the present invention, showing a state where the width is widened to wear the diaper 1B.
  • the widths are not uniformly the same but different.
  • the diaper 1B according to the 1-2 embodiment is different in stretch amount in the ventral stretch region 15 from the 1-1 embodiment.
  • the width dimension L1 of the crotch region side T2 when stretched in the width direction W of the diaper 1B (when worn) is the abdominal side Fr when stretched in the width direction W of the diaper 1B. It is provided so as to be larger than the width dimension L2 on the edge side T1.
  • Such a width dimension can be produced by varying the width dimension itself to be stretched on the crotch region side T2 and the end edge side T1 of the ventral side Fr, or by varying the degree of stretching per unit length. .
  • the diaper 1B since the diaper 1B can form a large space, so-called pocket, between the abdomen Fr of the diaper 1B and the skin of the wearer, the diaper 1B temporarily generates a large amount of urine in the large space. It can be held. That is, the diaper 1B can more reliably prevent the excrement from leaking.
  • FIG. 10 is a cross-sectional view of a diaper 1C according to the first to third embodiments of the present invention.
  • the diaper 1C according to the first to third embodiments has a configuration of the absorbent main body 2 and the ventral region 15 of each side flap portion 10 as compared with the first to first embodiments.
  • the configuration is different. That is, the top sheet 3 and the back sheet 4 of the absorbent main body 2 are joined only at the central portion in the width direction W of the diaper 1C by the joint portion 6 and are not joined at both ends in the width direction W of the diaper 1C. And each abdominal side extending
  • each ventral stretch region 15 is provided to extend to a region that overlaps the absorbent main body 2, so that the width dimension of the ventral stretch region 15 can be increased. Accordingly, the diaper 1 ⁇ / b> C can deepen a space formed on the ventral side Fr of the diaper 1 ⁇ / b> C, that is, a so-called pocket.
  • FIG. 11 is a sectional view of a diaper 1D according to the first to fourth embodiments of the present invention.
  • the diaper 1D according to the first to fourth embodiments is different from the first to first embodiments only in the configuration of each side flap portion 10.
  • Each side flap portion 10 is branched into two, an inner flap portion 10a and an outer flap portion 10b, on the outer side in the width direction W of the side flap portion 10.
  • a sheet material with a good touch is used for the inner flap portion 10a.
  • Elastic members 12a, 12b, 12c, and 12e are provided in an extended state at the distal ends of both the inner flap portion 10a and the outer flap portion 10b. That is, since the side flap part 10 closely_contact
  • the diaper 1 ⁇ / b> D has good touchability because the inner flap portion 10 a is a sheet material with a good touch.
  • the elastic members 12a, 12b, 12c, and 12e are provided at the tip portions of both the inner flap portion 10a and the outer flap portion 10b.
  • the diaper may be provided with an elastic member in an expanded state only at the tip of the inner flap portion 10a. According to this, the diaper according to the modified example of the first to fourth embodiments has a so-called inward-turned three-dimensional gather structure.
  • FIG. 12 to 16 show a diaper 1E according to the first to fifth embodiments of the present invention.
  • FIG. 12 shows a plan view of the diaper deployed.
  • FIG. 13 is a sectional view taken along the line CC of FIG.
  • FIG. 14 is a sectional view taken along line DD of FIG.
  • FIG. 15 shows a cross-sectional view of the wearing state.
  • FIG. 16 is a plan view showing a worn state in an expanded state.
  • ventral region 15 is provided in the ventral region S3 of the side flap portion.
  • dorsal extending region 14 is provided in the dorsal region S1 of the side flap portion.
  • each of the dorsal stretch regions 14 is arranged on the most absorbent main body 2 side in the outer three rows of elastic members 12a to 12c provided on the side flap portion 10 from the side edge of the absorbent main body 2. It is provided between the inner side of the elastic member 12c.
  • Each of the dorsal stretch regions 14 is stretched in the width direction W, which is a direction orthogonal to the longitudinal direction L from the dorsal side Ba to the ventral side Fr by stretching, thereby lowering the basis weight than other regions.
  • Each back-side stretch region 14 has alternating dense portions (not labeled) having a small stretch amount and coarse portions (not having a symbol) having a large stretch amount along the width direction W of the side flap portion 10. Is provided.
  • Each back-side stretched region 14 is stretched in a range of 1.5 to 3.0 times when compared with that before stretching. If the stretching amount of each back-side stretched region 14 is less than 1.5 times, the vertical dimension of the side flap portion 10 is so small that the elastic members 12a, 12b, 12c may not adhere to the skin. In addition, if the stretching amount of each back-side stretching region 14 exceeds 3.0 times, damage due to stretching is large, and material damage such as tearing or perforation may occur. If the stretch amount of each back-side stretch region 14 is in the range of 1.5 to 3.0 times, the diaper 1E can be reliably formed in the space, so-called pocket, without fear of material damage.
  • Each back-side stretch region 14 has a transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each back-side stretched region 14 is a transmittance that allows the inside to transmit from the outside.
  • region 14 of this embodiment is provided in the width direction W of the side flap part 10 over the substantially whole area
  • Each dorsal extending region 14 is provided in the longitudinal direction L of the side flap portion 10 over the entire range of the dorsal region S1 so as to reach the edge of the dorsal region S1.
  • each dorsal stretch region 14 does not extend to the crotch region S2 or the ventral region S3.
  • a specific method for producing the back-side stretched region 14 is the same as the method for producing the ventral-side stretched region 15 of the above-described embodiment, and thus description thereof is omitted.
  • the width W4 (FIGS. 15 and 16) is 1. It is preferably in the range of 5 to 3.0 times.
  • the width W3 is defined by three outer rows of elastic members 12a to 12 provided on the side flap portion 10 from the side edge of the absorbent main body 2 at the portion where the width of the side flap portion 10 is the narrowest when it is extended in the width direction W.
  • 12c it is the width
  • the width W4 is a width from the side edge of the absorbent main body 2 to the vicinity of the inner side on the elastic member 12c side in a portion where the width of the side flap portion 10 is widest when extended in the width direction W.
  • the width W4 is the width of the side flap portion 10 serving as a reference after the drawing process.
  • the stretching amount of the dorsal stretching region 14 that has been reduced in basis weight by stretching is short, so the side flaps from the side of the absorbent body 2
  • positioning part of the part 10 becomes short, and the accommodation space of the excretion which leaked from the absorber 5 becomes narrow. For this reason, excrement will get over the elastic member arrangement part of the side flap part 10, and will leak from the diaper 1E.
  • the stretched amount of the dorsal stretched region 14 that has been reduced in the basis weight by stretching is long, so the material is easily damaged and stretched. There is a high possibility of material damage such as drilling and holes. As a result, when the material is damaged, excrement leaks from the damaged part.
  • the width of the outer edge of the side flap portion 10 from the side edge of the absorbent main body 2 when the side flap portion 10 is extended in the width direction W is the same as described above. Is preferably 1.5 times to 3.0 times the narrowest width for the same reason as above.
  • a large space is formed between the wearer and the absorbent main body 2 in a state of wrapping the hips at the back side Ba of the absorbent main body 2 and the pair of side flap portions 10.
  • the diaper 1E can temporarily hold a large amount of discharged excrement by this large space. That is, the diaper 1E can more reliably prevent the excrement from leaking.
  • a material for an exterior sheet suitable for stretching a material having a film breaking elongation of 750% or more is preferable.
  • the film elongation at break is less than 750%, pinholes are likely to occur during stretching, and the possibility of causing excrement leakage due to the occurrence of pinholes is high.
  • the amount of stretching in the dorsal-side stretched region 14 varies depending on the type of sheet material of the side flap portion 10
  • the amount of stretching is adjusted depending on the type of sheet material to obtain a transmittance that allows the inside to permeate from the outside.
  • each side flap portion 10 When the wearer wears the diaper 1E having the above configuration, the outer periphery of each side flap portion 10 is brought into close contact with the wearer's legs due to the contraction of the elastic members 12a to 12d. Further, as shown in FIG. 16, in the back side region S1 in which the back side stretched region 14 is formed, it spreads in the width direction W when worn by a distance that has been stretched and reduced in basis weight.
  • the ventral region S3 since the stretching process is not performed on the ventral region S3, even if the ventral region S3 is extended in the width direction W during wearing, the ventral region S3 does not expand beyond the original width.
  • the diaper 1E when the wearer wears the diaper 1E, the diaper 1E is worn on the body in a state where the width of the dorsal region S1 is wider than the ventral region S3.
  • the distance between the pair of elastic members 12a to 12d is also similar to the body with the distance between the elastic members 12a to 12d on the dorsal side Ba being longer than the ventral side Fr. Installed.
  • the diaper 1E is excellent in wearability because it can be fitted so as to wrap the hips of the wearer with the back side Ba.
  • the diaper 1E forms a spatial margin between the wearer and the diaper 1E in a state of wrapping the hip, the stool can be temporarily held even when the loose stool is excreted. That is, the diaper 1E can prevent the loose stool leaked from the absorber from leaking immediately beyond the elastic members 12a to 12d around the legs.
  • the back-side stretched region 14 is formed by stretching in the width direction W by stretching, a substantially linear material can be used as the side flap portion 10 before stretching. For this reason, in the manufacturing process of the diaper 1E, waste of materials due to the hollowing out can be omitted and the processing becomes easy.
  • surroundings near a wearer's inseam is a thin soft back extending
  • the diaper 1E can reduce discomfort.
  • the diaper 1E can improve the followability with respect to a wearer's hip motion.
  • the dorsal stretch region 14 has an advantage that it can easily stand up in the vertical direction with respect to the absorbent main body 2 and can be fitted to the hip without excessive tightening of the outer periphery of each side flap portion 10.
  • the dorsal stretch region 14 reaches the end edge of the dorsal side Ba, but may be provided so as not to reach the end edge of the dorsal side Ba. However, it is preferable from the viewpoint of fit to the wearer that the dorsal stretch region 14 is provided until reaching the end edge of the dorsal side Ba as in this embodiment.
  • each dorsal stretch region 14 is provided between the absorbent main body 2 and the elastic member 12a located on the outermost side.
  • each back-side stretched region 14 is provided in a region on the side of the absorbent main body 2 with respect to the center line that is bisected in the width direction W between the side edge of the absorbent main body 2 and the outermost elastic member 12a. Therefore, there are the following advantages. Even if the diapers are provided with elastic members 12a, 12b, and 12c on a pair of side flap portions 10, it is only necessary to provide elastic members on each side flap portion 10 in a straight line. Therefore, the cost can be reduced.
  • the diaper 1E when worn, it begins to bend from a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2 and the side flap portion 10, but in this embodiment, this portion is a flexible dorsal stretch. Since it is made into the area
  • each dorsal stretch region 14 has a transparency that allows the internal excrement to be visually recognized from the outside when worn, the presence or absence of excrement inside the diaper 1E can be confirmed from the outside through the dorsal stretch region 14. For this reason, the diaper 1E can easily determine the replacement time and the like.
  • each back-side stretch region 14 is alternately provided with a dense portion having a small stretch amount and a rough portion having a large stretch amount along the width direction W of the side flap portion 10. Accordingly, in the manufacturing process of the diaper 1E, the back-side stretched region 14 is configured by being alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 10 is linear without protruding. That is, the diaper 1E has improved handling in the manufacturing process, product packaging process, and the like.
  • FIG. 17 is a plan view of a diaper 1F according to the first to sixth embodiments of the present invention, showing a state in which the width is increased in order to wear the diaper 1F.
  • the diaper 1F according to the first to sixth embodiments is different from the first to fifth embodiments in the stretch amount in the back stretch region 14.
  • the back side Ba when the width dimension L3 of the crotch region side T4 when stretched in the width direction W of the diaper 1F (when worn) is stretched in the width direction W of the diaper 1F. It is provided so as to be larger than the width dimension L4 on the edge side T3.
  • the diaper 1F can form a large space between the hip and the absorbent main body 2 when worn, the diaper 1F can temporarily hold a large amount of excrement. That is, the diaper 1F can more reliably prevent the excrement from leaking.
  • FIG. 18 is a plan view showing a developed state of the diaper 1G according to the first to seventh embodiments of the present invention.
  • the dorsal stretch region 14 is formed in the dorsal region S1 of the pair of side flap portions 10, and the ventral stretch region 15 is formed in the ventral region S3. Accordingly, since the width of the back region S1 and the ventral region S3 is wider than the crotch region S2, the diaper 1G can form a space on both the back side Ba and the ventral side Fr. Thereby, in the diaper 1G, a space is formed between the wearer and the absorbent main body 2 in a state of wrapping the crotch portion even in the abdominal side Fr of the absorbent main body 2 and the pair of side flap portions 10. For this reason, the diaper 1G can temporarily hold a large amount of discharged excrement in both the back side Ba and the ventral side Fr, and can prevent leakage of the excrement as much as possible.
  • the stretch amount can be varied between the crotch region and the dorsal region, as in the first to sixth embodiments. Thereby, it can be set as the diaper excellent in wearability.
  • FIG. 19 is a sectional view of a diaper 1H according to the first to eighth embodiments of the present invention.
  • the diaper 1H according to the first to eighth embodiments is different from the first to fifth embodiments in the configuration of the absorbent main body 2 and the configuration of the dorsal extending region 14 of each side flap portion 10.
  • the top sheet 3 and the back sheet 4 of the absorbent main body 2 are joined only at the center portion in the width direction W by the joint portion 6 and are not joined at both end portions in the width direction W.
  • region 14 is extended and provided in the area
  • each back-side stretch region 14 is provided so as to extend to a region overlapping with the absorbent main body 2, so that the width dimension of the back-side stretch region 14 can be increased. Therefore, the diaper 1H can enlarge the dimension which wraps the hips, and the space formed on the back side Ba of the diaper 1H, so-called pockets.
  • FIG. 20 is a cross-sectional view of a diaper 1I according to Embodiment 1-9 of the present invention.
  • the diaper 1I according to the first to ninth embodiments is different from the first to fifth embodiments only in the configuration of each side flap portion 10.
  • Each side flap portion 10 is branched into two, an inner flap portion 10a and an outer flap portion 10b, on the outer side in the width direction W of the side flap portion 10.
  • a sheet material with a good touch is used for the inner flap portion 10a.
  • Elastic members 12a, 12b, 12c, and 12e are provided in an extended state at the distal ends of both the inner flap portion 10a and the outer flap portion 10b. In other words, since the side flaps 10 are in close contact with each other around the legs when worn, the diaper 1I can more reliably prevent side leakage.
  • the diaper 1 ⁇ / b> I has good touch properties because the inner flap portion 10 a is a sheet material having a good touch. Since the other configuration is the same as that of the first to fifth embodiments, the redundant description will be omitted and the same components in the drawings will be denoted by the same reference numerals for clarification.
  • a crotch-side extension region can be provided between the absorbent main body 2 of the side flap portion 10 and the outermost elastic member 12a in the crotch region S2.
  • the crotch-side stretched region can be formed by stretching in the width direction W with respect to the crotch region S2 in the side flap portion 10. As described above, by providing the crotch-side stretched region, the outer periphery of each side flap portion 10 to be worn is in close contact with the wearer's leg due to the contraction of each elastic member.
  • the diaper according to the modified example does not provide the side flaps 10 with the folds, and also provides the edges of the side flaps 10 in a curved shape, or the edges of the side flaps 10 in the width direction W.
  • a pocket can be formed on the crotch side without providing an elastic member along the curved line.
  • ventral stretched region 15 and the dorsal stretched region 14 are formed on the backsheet 4 and the exterior sheet 11, but the ventral stretched region 15 and the dorsal stretched region 14 are formed on the backsheet 4. It may be formed by stretching only. In this case, it is possible to reduce the amount of nonwoven fabric used.
  • ventral stretch region 15 and the back stretch region 14 may be formed by stretching the bonded portions of the three materials of the top sheet 3, the back sheet 4, and the exterior sheet 11. In this case, the body fluid that has flowed out of the absorber 5 can be guided again to the absorber 5 by the hydrophilic topsheet 3.
  • a liquid-impervious sheet made of a material different from that of the back sheet 4 is laminated on the exterior sheet 11 of the pair of side flap portions 10, and the exterior sheet 11 and a laminated portion of the liquid-impermeable sheet are stretched.
  • a sheet material suitable for stretching can be used as the liquid-impermeable sheet, and a breathable film or a high-weight film for pinhole measures can be used as the back sheet 4 below the absorber 5. It becomes possible to arrange suitable materials for each part.
  • each side flap portion 10 four elastic members 12a to 12d are provided in each side flap portion 10, but only one or two rows may be provided on the side end portion of the side flap portion 10, and the number of elastic members may be provided.
  • the arrangement position can be changed as appropriate.
  • the present invention is applied to an open type diaper, but the present invention can be applied to a pant type diaper in the same manner. Moreover, this invention is applicable also to absorbent articles other than a diaper.
  • Japanese Patent Application No. 2008-037919 (filed on February 19, 2008), Japanese Patent Application No. 2008-037922 (filed on February 19, 2008), Japanese Patent Application No. 2009-026246 ( The entire contents of Japanese Patent Application No. 2009-026255 (filed on Feb. 6, 2009) and Japanese Patent Application No. 2009-026255 are incorporated herein by reference.
  • Patent Document 1 discloses a structure in which a top sheet is formed of a liquid-impermeable nonwoven fabric and a melt blow layer is provided between the absorber and the back sheet.
  • Patent Document 2 discloses a structure in which a folded portion is formed on a liquid-impermeable back sheet, and a liquid-impermeable nonwoven fabric is bonded to the folded portion.
  • the folded portion is formed toward the surface sheet side along both side edges in the longitudinal direction of the absorbent body.
  • Patent Document 3 discloses a structure in which side flap portions that extend outward in the same direction from both lateral edges of the absorber are formed by a composite sheet that is separate from the top sheet and the back sheet.
  • the composite sheet is formed by contacting an inner layer made of an impermeable sheet having a thickness of 5 ⁇ m or more and less than 20 ⁇ m with an outer layer made of a nonwoven fabric having a basis weight of 10 to 25 g / m 2 .
  • Patent Document 1 Japanese Patent Laid-Open No. 2001-104372
  • Patent Document 2 Japanese Patent Laid-Open No. 2005-211131
  • Patent Document 3 Japanese Utility Model Laid-Open No. 7-21020 [Disclosure of the Invention]
  • the surface sheet made of a nonwoven fabric has a limit in the leak-proof function.
  • the body fluid permeates the top sheet and causes side leakage from the top sheet.
  • a surface sheet made of a nonwoven fabric bleeds and leaks.
  • an object of the present invention is to provide an absorbent article that can prevent bleeding and leakage and has good air permeability.
  • an absorbent article for example, a diaper 1001A
  • a liquid-permeable top sheet for example, a diaper 1001A
  • back sheet 1004 Between the back side and the abdomen when worn (back side region S11) in the longitudinal direction (longitudinal direction L) from the back side to the abdomen.
  • An absorbent main body (absorbent main body 1002) having a crotch region (inseam region S12), a ventral region (ventral region S13), and a pair of left and right provided on both sides in the width direction (width direction W) of the absorbent main body
  • the side flap portion (side flap portion 1010) is an absorbent article, and is composed of a continuous body in which the lower surface of the absorbent main body and the back surface sheet located on the side flap portion are continuous, and the width of the side flap portion Side flaps between Kotan'en the absorption side edge and having a high moisture-permeable regions having moisture permeability lower surface of the absorbent body (KoTorushime region 1006).
  • the absorbent article can prevent bleeding and leakage.
  • the side flap part is a highly moisture-permeable area
  • FIG. 21 is a cross-sectional view of a diaper 1001A according to Embodiment 2-1 of the present invention.
  • a diaper 1001A which is an absorbent article, includes an absorbent main body 1002 and a pair of left and right side flap portions 1010 provided on both sides of the absorbent main body 1002 in the width direction W.
  • the width direction W of the absorptive main body 1002 is a direction orthogonal to the longitudinal direction L from the back side to the stomach side in the plan view of the diaper 1001A.
  • the absorbent main body 1002 includes at least a liquid-permeable top sheet 1003, a liquid-impermeable back sheet 1004, and an absorber 1005 that is disposed between the top sheet 1003 and the back sheet 1004 and absorbs and holds liquid. It is configured.
  • both end portions in the width direction W are folded so as to wrap the absorber 1005.
  • the folded portion of the top sheet 1003 and the absorber 1005 are joined to the back sheet 1004 by glue such as hot melt.
  • SMS having a basis weight of 10 g / m 2 (a composite nonwoven fabric of spunbond and melt blown, hereinafter referred to as SMS) is used as the top sheet 1003.
  • the absorber 1005 is a laminated body having liquid absorption retention.
  • the absorber 1005 is made of a mixture obtained by mixing absorbent pulp and superabsorbent polymer.
  • the back sheet 1004 is made of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler.
  • the liquid-impermeable film is a microporous moisture-permeable sheet made of polyethylene containing about 50% by weight of calcium carbonate as a filler and having a basis weight of 22.0 g / m 2. ing.
  • an inorganic material such as barium sulfate can be used as the filler.
  • an olefin-based thermoplastic resin such as polypropylene can be used in addition to polyethylene.
  • the bottom surface of the absorbent main body 1002 and the back sheet 1004 located on the side flap portion 1010 are constituted by a continuous body. That is, the side flap part 1010 is formed in the part which extended the back surface sheet 1004 from the lower surface of the absorber 1005 to the right and left both sides.
  • the side flap portions 1010 are located on both sides of the absorbent body 1005.
  • the side flap portion 1010 is provided with a highly moisture permeable region 1006 that is more permeable than the lower surface of the absorbent main body 1002.
  • the high moisture permeability region 1006 has high moisture permeability. Highly moisture permeable regions 1006 are provided on the left and right sides of the absorbent main body 1002.
  • the moisture permeability of the highly moisture permeable region 1006 is set to be 1.3 to 2.5 times or more than the moisture permeability on the lower surface side of the absorbent main body 1002 so that the liquid does not leak. It should be noted that “setting so that the liquid does not leak” means that the moisture permeability of the high moisture-permeable region 1006 is set within a range where the liquid does not leak.
  • the highly moisture-permeable region 1006 is produced by stretching a side flap portion 1010 made of a liquid-impermeable sheet in the width direction W (hereinafter referred to as a stretching process).
  • the stretching process will be described in detail with reference to a second to second embodiment described later.
  • An exterior sheet 1011 made of a liquid-impermeable sheet is provided on the outer side in the width direction of the side flap portion 1010.
  • the side edge of the exterior sheet 1011 is provided with a gathered portion in which the elastic member 1012 is arranged along the longitudinal direction L in an extended state.
  • the gather part has moisture permeability from the highly moisture permeable area 1006 of the side flap part 1010. Accordingly, the relationship of moisture permeability in the diaper 1001A is “the lower surface of the absorbent main body 1002 ⁇ the highly moisture permeable region 1006 ⁇ the gathered portion”.
  • the diaper 1001A can prevent bleeding and leakage of body fluid and the like.
  • the liquid-impermeable sheet (back surface sheet 1004) is stretched by the stretched width.
  • the diameter of the micro-opening hole by the filler is increased and the moisture permeability is increased. Since the air permeability and the moisture permeability increase due to the high moisture permeability, the diaper 1001A can prevent the diaper 1001A from being steamed. Furthermore, since the material is softened by the stretching process, the wearer's feeling of use is improved.
  • FIG. 22 is a plan view of the diaper 1001B in a developed state.
  • 23 is a cross-sectional view taken along line A1-A1 of FIG. 24 is a cross-sectional view taken along line B1-B1 of FIG. 25 and 26 are plan views of the diaper 1001B showing the distance of high moisture permeability.
  • FIG. 27 is a cross-sectional view of the stretching apparatus.
  • the diaper 1001B includes an absorbent main body 1002 and a pair of left and right side flap portions 1010 provided on both sides in the width direction W of the absorbent main body 1002, as in the case of the 2-1 embodiment.
  • the absorbent main body 1002 includes at least a liquid-permeable top sheet 1003, a liquid-impermeable back sheet 1004, and an absorber 1005 that absorbs and holds the liquid.
  • the absorber 1005 is disposed between the top sheet 1003 and the back sheet 1004.
  • the absorptive main body 1002 has a dorsal region S11, a crotch region S12, and a ventral region S13 along the longitudinal direction L from the dorsal side to the ventral side.
  • the absorbent main body 1002 covers the wearer's back side, crotch side, and abdomen side.
  • the back sheet 1004 is formed by adhering a liquid-impermeable sheet 1013 and an exterior sheet 1011.
  • the elastic member 1012 is disposed in an extended state on the side edge of the side flap portion 1010.
  • the overlapping portion of the exterior sheet 1011 and the liquid impermeable sheet 1013 is stretched in the width direction W.
  • the stretched portion is highly permeable and becomes a highly permeable region 1006.
  • the top sheet 1003 is a liquid-permeable sheet.
  • a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, or the like, or a hydrophobic nonwoven fabric having an aperture can be used.
  • SMS having a basis weight of 10 g / m 2 is used as the top sheet 1003.
  • the liquid-impermeable sheet 1013 in the back sheet 1004 is made of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler.
  • the liquid-impermeable sheet 1013 may be a moisture-permeable liquid-impermeable film or a sheet obtained by bonding a nonwoven fabric to this liquid-impermeable film.
  • the liquid-impermeable sheet 1013 includes a microporous moisture-permeable sheet made of polyethylene containing approximately 50% by weight of calcium carbonate as a filler and having a basis weight of 22.0 g / m 2. Yes.
  • an inorganic material such as calcium carbonate or barium sulfate can be used.
  • Resins used for the liquid-impermeable sheet 1013 include polyethylene and olefinic thermoplastic resins such as polypropylene.
  • the exterior sheet 1011 in the back sheet 1004 is a liquid-impermeable sheet.
  • an SMS having a basis weight of 13 m / m 2 is used.
  • the exterior sheet 1011 is arranged from the side of the absorbent main body 1002 to the back surface.
  • Elastic members 1012 are arranged in an extended state on both left and right edges of the liquid-impermeable sheet 1013.
  • the liquid-impermeable sheet 1013 extends to the outside of the side portion of the absorber 1005.
  • the liquid-impermeable sheet 1013 and the exterior sheet 1011 are bonded with a heat-sensitive adhesive (hereinafter referred to as HMA) or the like.
  • HMA heat-sensitive adhesive
  • the absorbent body 1005 is a liquid absorbent retaining laminate.
  • the absorber 1005 is made of a mixture obtained by mixing absorbent pulp and superabsorbent polymer.
  • a waist flap portion 1014 is provided outside the side flap portion 1010 in the width direction.
  • the waist flap portion 1014 is made of a liquid permeable or liquid impermeable sheet.
  • the waist flap portion 1014 has a locking member 1015 such as a mechanical lock or an adhesive tape so that the absorbent article 1001B can be fixed on the ventral side.
  • the exterior sheet 1011 and the liquid-impermeable sheet 1013 are bonded together with HMA or the like to form the back sheet 1004.
  • two polyurethane-based elastic yarns 470 dtex as one side of the elastic member 1012 are arranged on the exterior sheet 1011 in a state of being stretched by 2.2 times, and the elastic yarn is wound around the exterior sheet 1011.
  • the portion where the exterior sheet 1011 overlaps the liquid-impermeable sheet 1013 in the central region in the longitudinal direction L of the side flap portion 1010 was stretched in the width direction W.
  • the absorber 1005 was disposed on the back sheet 1004 after being stretched. Procedures other than this processing procedure may be used.
  • the highly moisture permeable region 1006 provided in the side flap portion 1010 will be described. As shown in FIGS. 22 and 23, the highly moisture permeable region 1006 is formed on the back sheet 1004 including the liquid impermeable sheet 1013 and the exterior sheet 1011. The highly moisture permeable region 1006 is provided between the width direction edge of the side flap portion 1010 and the side edge of the absorber 1005. The highly moisture permeable region 1006 is formed by stretching the back sheet 1004.
  • FIG. 25 shows a part to be stretched.
  • the back sheet 1004 is further stretched to a width of 20 mm on the outer side in the width direction on the basis of a position 5 mm away from the side of the absorber 1005 in the outer side in the width direction.
  • the longitudinal direction L of the absorbent body 1005 is stretched over the entire length. Note that the length in the longitudinal direction L of the portion to be stretched is not a constraint because the design differs depending on the length of the diaper, the width of the absorber 1005, and the like.
  • the exterior sheet 1011 and the liquid-impermeable sheet 1013 are bonded with HMA or the like to form the back sheet 1004, and then stretched using a stretching apparatus 1030 shown in FIG.
  • the stretching device 1030 has a pair of stretching blade rows 1031 that face each other and can be engaged with each other.
  • the depth of the blade is 2.5 mm
  • the pitch between the upper and lower blades is 1.25 mm
  • the number of upper and lower blades is 17.
  • Stretching is performed on a part of the side flap portion 1010 with the set temperature of the stretching blade row portion 1031 being 90 ° C.
  • the highly moisture permeable region 1006 is stretched 1.8 times as compared with before stretching. Specifically, in the high moisture permeability region 1006, the moisture permeability average value 1935 (Pa ⁇ 24 hrs) before stretching is increased by about 1.65 times to 3191 (Pa ⁇ 24 hrs) after stretching ( (See Table 1).
  • the back sheet 1004 is softened by heating the blade, and it is easy to reduce the basis weight, so that it is difficult to generate pinholes.
  • An appropriate heating temperature is preferably 20 to 30 degrees or less of the melting point of the material. Heating at a temperature exceeding the material melting point of the liquid-impermeable sheet 1013 is not preferable because the liquid-impermeable sheet 1013 melts and breaks.
  • the back sheet 1004 is coated with a moisture permeable film having a diameter of 15 mm and a basis weight of 5 g / m 2 using a spiral spray, and having a basis weight of 22.0 g / m 2.
  • a liquid-impermeable sheet 1013) and a liquid-permeable SMS (exterior sheet 1011) having a basis weight of 13 g / m 2 are bonded together. Table 1 shows the stretching results.
  • FIG. 25 and FIG. 26 show the distance for stretching (high moisture permeability).
  • the width of the side flap portion 1010 to be stretched is the width X from the side edge of the absorbent body 1005 to the vicinity of the inner side of the elastic member 1012 disposed closest to the absorbent body 1005 of the side flap portion 1010 with the diaper 1001B expanded. (FIG. 25).
  • the width Y is from the side edge of the absorber 1005 to the inner side of the elastic member 1012 disposed closest to the absorber 1005 of the side flap portion 1010.
  • the width Y is preferably in the range of 1.5 to 3.0 times the width X.
  • the width Y is less than 1.5 times the width X, the stretch width of the highly moisture permeable region 1006 is small, so that the height cannot be secured even when the side flap portion 1010 stands up when the diaper is mounted. . For this reason, a gap is generated between the skin and the elastic member 1012 arrangement portion, and excrement may leak from the gap.
  • the width Y is larger than 3.0 times the width X, the stretch width of the highly moisture permeable region 1006 is large, so that the moisture permeability increases by stretching. As a result, the material is easily damaged, and there is a high possibility that the material will be damaged, such as tearing or opening. If the material is damaged, excrement may leak from the damaged part.
  • the moisture permeability after stretching is preferably 1.3 to 2.5 times or more of the moisture permeability before stretching.
  • the moisture permeability before the drawing process also means the moisture permeability on the lower surface side of the absorber.
  • the difference in moisture permeability before and after the stretching process is less than 1.3 times, since the change in moisture permeability is small, there is almost no change from before the stretching process, and the effect of reducing stuffiness in the diaper is low.
  • the liquid-impermeable sheet 1013 suitable for stretching is preferably one having a film breaking elongation of 750% or more.
  • a film having a breaking elongation of less than 750% pinholes are easily generated by stretching. The occurrence of pinholes can cause leakage.
  • the back sheet 1004 is stretched by the stretched width by stretching the side flap portion 1010.
  • the hole diameter of the micro-opening by the filler is increased, and the highly moisture permeable region 1006 that has been subjected to the stretching process is highly moisture permeable.
  • region 1006 reduces the basic weight of material, and a moisture permeability increases compared with the area
  • the highly moisture permeable region 1006 is highly moisture permeable, so that the material constituting the highly moisture permeable region 1006 is softened.
  • the diaper 1001b can keep the arrangement surface of the elastic member 1012 higher than the surface of the liquid-permeable sheet by the stretched width. For this reason, as shown in FIG. 24, the diaper 1001b can enlarge the pocket 1016 which accommodates a bodily fluid compared with the diaper which does not perform an extending
  • the diaper 1001b bonds the liquid-impermeable sheet 1013 and the exterior sheet 1011 together to form the back sheet 1004, and the side flaps on the side edge of the absorber 1005 in the back sheet 1004 A highly moisture permeable region 1006 that is highly permeable to moisture is disposed in the portion 1010.
  • the diaper 1001b has a structure in which a film material is disposed on the side flap portion 1010, the water pressure resistance is increased, and leakage of body fluid can be prevented.
  • the diaper 1001b improves air permeability and moisture permeability due to the effect of increasing moisture permeability, the diaper 1001b can prevent the diaper from becoming stuffy and causing skin troubles.
  • a flexible region is formed in the side flap portion 1010 located on the inner surface of the diaper 1001b by stretching. Since the inner surface of the diaper 1001b is soft, the diaper 1001b can reduce discomfort compared to a diaper that has not been stretched.
  • the diaper 1001b is easy to fit on the body and excrement is difficult to leak out.
  • the diaper 1001b does not have a high moisture permeable area on the lower surface of the absorbent body 1005 where the body pressure is highest during wearing, and the lower surface of the absorbent body 1005 has a higher water pressure resistance than the high moisture permeable area 1006. is doing. Therefore, even when the diaper 1001b is worn for a long time, the diaper 1001b does not bleed out excrement from the lower surface of the absorbent body 1005 or leak moisture, so the underwear or the futon is not wetted.
  • the diaper 1001b can provide different effects while arranging continuous materials in the same width direction W on the lower surfaces of the side flap portion 1010 and the absorber 1005.
  • the side flap portion 1010 is excellent in air permeability and moisture permeability
  • the lower surface of the absorber 1005 is excellent in water pressure resistance.
  • the liquid-impermeable sheet 1013 constituting the back sheet 1004 and the exterior sheet 1011 are preferably bonded with HMA using a spiral spray.
  • Adhering with HMA using a spiral spray allows materials to be partially bonded together, resulting in a low density bonding area.
  • the adhesion area is low density, the elongation of the liquid-impermeable sheet 1013 during stretching is not easily hindered by the exterior sheet 1011, and thus material damage due to stretching is unlikely to occur.
  • the bonding area between the materials to be bonded is high density, the stretching of the liquid-impermeable sheet 1013 during stretching is hindered by the exterior sheet 1011. That is, if the stretching process is performed in a state where the adhesion area is high density, the material is likely to be damaged.
  • the elastic member 1012 may be disposed in a region where the side flap portion 1010 of the back sheet 1004 is not stretched.
  • the number of elastic members 1012 is not limited, and may vary depending on the function and design of the diaper.
  • the elastic members arranged closest to the absorber 1005 1012 is preferably arranged in a non-high moisture-permeable region near the boundary between the high moisture-permeable region 1006 and the non-high moisture-permeable region.
  • the diaper 1001b can improve sealing performance.
  • FIG. 28 shows a second to third embodiment of the present invention.
  • a back sheet 1004 is formed by bonding a liquid-impermeable sheet 1013 and an exterior sheet 1011.
  • the top sheet 1003 covers the absorber 1005 and extends sideways.
  • a hydrophilic liquid-permeable sheet is used as the top sheet 1003, a hydrophilic liquid-permeable sheet is used.
  • the top sheet 1003, the liquid-impermeable sheet 1013, and the exterior sheet 1011 are bonded.
  • the bonded portion is stretched (highly moisture permeable). That is, the highly moisture permeable region 1006 is formed in the liquid-impermeable sheet 1013, the exterior sheet 1011, and the top sheet 1003.
  • the diaper 1001C absorbs body fluid that has flowed from the side of the absorbent body 1005 to the highly moisture permeable region 1006 of the side flap portion 1010 with a hydrophilic liquid-permeable sheet (surface sheet 1003). It can be guided to the body 1005 again.
  • FIG. 29 shows Embodiment 2-4 of the present invention.
  • the side flap portions 1017 and 1018 are arranged in two rows on each side, and stretching processing (high moisture permeability) is performed on each of the two rows of side flap portions 1017 and 1018.
  • stretching processing high moisture permeability
  • the diaper 1001D can double-act the leakproof function.
  • the liquid-impermeable sheet 1013 which comprises the back surface sheet 1004 is covered by the side flap 1018, the diaper 1001D also becomes favorable to the touch.
  • FIG. 30 shows Embodiment 2-5 of the present invention.
  • the side flap portion 1010 is formed inwardly, and is similarly stretched (highly moisture permeable). Since the diaper 1001E has such a structure, the surface of the absorbent body 1005 is covered with the side flap portion 1010. Therefore, the area of the absorbent body 1005 that contacts the skin can be reduced, and the excrement returns to the skin. Can be reduced.
  • FIG. 31 shows a 2-6 embodiment of the present invention.
  • the central part 1006a in the central part 1006a and the end part 1006b along the longitudinal direction L of the high moisture permeable area 1006, the central part 1006a is highly permeable in a wider area than the end part 1006b. ing. Since the central portion 1006a is highly moisture permeable in a wider area than the end portion 1006b, the width of the pocket of the central portion 1006a is wider than the width of the pocket of the end portion 1006b. That is, the diaper 1001F can keep the volume of the crotch region where the excrement easily collects wide. Therefore, the diaper 1001F can suppress leakage from the diaper.
  • the heights of the pushing blades of the end portion 1006b and the central portion 1006a are changed. That is, the central portion 1006a can be made to have higher moisture permeability than the end portion 1006b by making the pushing height of the blade of the central portion 1006a higher than that of the end portion 1006b. Further, the central portion 1006a is made to be highly permeable in a wider area in the width direction W than the end portion 1006b, that is, by changing the original area to be highly permeable to the central portion 1006a and the end portion 1006b, the central portion 1006a is changed. The moisture permeability can be higher than that of the end portion 1006b.
  • the diaper has a highly moisture permeable (stretched) portion on the side of the absorbent body 1005, but is not limited to an open type diaper.
  • the diaper may be a pants type in which the diaper body is folded in half at the center in the longitudinal direction and both the back side and the abdomen side are locked and fixed. According to such a diaper, since the volume of the crotch part where excrement tends to accumulate can be kept wide, leakage from the diaper can be suppressed.
  • the present invention is not limited to the above-mentioned diaper, but can be applied to absorbent articles such as sanitary napkins and urine pads.
  • liquid-impermeable sheet 1013 used for the sheet 1004 a film made of polyethylene containing about 50% by weight of calcium carbonate as a filler is used.
  • a film having moisture permeability may be used by stretching in the course of manufacturing the film to form a microporous material before the moisture permeability at the time of diaper processing.
  • a film is a film made of polyethylene containing 20 to 70% by weight of calcium carbonate as a filler and having a basis weight of 15 to 40 g / m 2.
  • a stretched, moisture-impermeable film can also be used.
  • the back sheet 1004 is stretched by the width stretched by the stretching process performed at the time of processing the diaper, and the film is provided with moisture permeability by forming fine holes with the filler.
  • a moisture permeable film is used as the film.
  • the resin used for the moisture permeable film a resin obtained by molding a polyethylene resin, a polypropylene resin, or a fluororesin into a thickness of 20 to 40 ⁇ m by, for example, a melt film forming method is used.
  • the diaper 2100 includes a liquid-permeable top sheet 2101a, a liquid-impermeable back sheet (not shown), and an absorber 2101c that absorbs and holds liquid.
  • An absorptive main body 2101 is provided.
  • the absorber 2101c is disposed between the top sheet 2101a and a back sheet (not shown).
  • the absorbent main body 2101 has a dorsal region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction from the dorsal side to the abdominal side when worn, and covers the abdominal side from the dorsal side centering on the wearer's inseam.
  • side flap portions 2110 are provided by extending a top sheet 2101 a and a back sheet (not shown).
  • An elastic member 2120 is provided on the outer edge of the crotch region S22 of each side flap portion 2110 in an extended state along the longitudinal direction. Further, a folded portion 2130 is provided in the ventral region S23 of each side flap portion 2110.
  • each side flap portion 2110 When the wearer wears the diaper 2100 of the conventional example, the outer circumference of each side flap portion 2110 is brought into close contact with the wearer's leg due to the contraction of each elastic member 2120, and the width dimension of the crotch region S22 of each side flap portion 2110 Is larger than the width dimension of the ventral region S23, so that a space, a so-called pocket, is formed on the inseam side of the wearer. By this pocket, urine, feces and the like excreted from the wearer can be reliably held without side leakage.
  • the diaper 2150 includes an absorbent main body 2151 that includes a liquid-permeable top sheet 2151a, a liquid-impermeable back sheet 2151b, and an absorbent body 2151c that absorbs and holds liquid. It has.
  • the absorber 2151c is disposed between the top sheet 2151a and the back sheet 2151b.
  • the absorbent main body 2151 has a dorsal region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction from the back side to the abdomen when worn, and covers the abdomen from the back side with the crotch of the wearer as the center.
  • a pair of elastic members 2152 are provided in an extended state.
  • Each elastic member 2152 is provided so as to swell outward in the crotch region S22.
  • interval of a pair of elastic member 2152 is narrow in back side area
  • Patent Document 4 Japanese Patent Application Laid-Open No. 62-199802 (Page 6, FIGS. 4 and 5)
  • Patent Document 5 JP-A-4-242645 (page 8, FIG. 1, FIG. 2) [Disclosure of the Invention]
  • a pocket is formed in the crotch region S22 when worn, and extra materials are required for the width direction of the diapers 2100 and 2150 as compared with the case where no pocket is formed.
  • the present invention is to form a so-called pocket on the inseam of the wearer, and an absorbent article that can reduce the amount of materials used, facilitate the processing during manufacturing, and thus reduce the manufacturing cost.
  • the purpose is to provide.
  • a feature of the present invention that achieves the above object is that a liquid-permeable top sheet (top sheet 2003), a liquid-impermeable back sheet (back sheet 2004), and a liquid that is disposed between the top sheet and the back sheet, And a back region (back region S21), a crotch region (inseam region) in the longitudinal direction (longitudinal direction L) from the back side to the abdomen when worn.
  • an absorbent main body (absorbent main body 2002) having a ventral region (ventral region S23), and a pair of left and right side flap portions (sides) provided on both sides in the width direction (width direction W) of the absorbent main body
  • An absorbent article e.g., an elastic member (e.g., elastic member a)
  • an elastic member e.g., elastic member a
  • a crotch-side stretched region for example, a crotch-side stretched region 2013 stretched in the width direction between the absorbent main body of the side flap portion in the crotch region and the outermost elastic member.
  • each side flap portion when the wearer wears, the outer circumference of each side flap portion is in close contact with the wearer's leg due to the contraction of each elastic member, and the crotch region of each side flap portion can be expanded. Is larger than the width dimension of the side flap portions in the back side region and the abdominal side region due to the pair of crotch side extension regions, so that a so-called pocket is formed in the wearer's crotch region. Since each crotch side extension region is provided by extending the crotch region of each side flap portion in the width direction, the crotch side extension region can be formed of a material having the same width as a diaper that does not form a so-called pocket in the crotch region.
  • a pocket can be formed on the crotch side of the wearer without providing a fold at each side flap and without providing an elastic member in a curved shape at each side flap. From the above, it is possible to reduce the materials used, facilitate the processing during manufacturing, and consequently reduce the manufacturing cost.
  • each side flap part covering the underbody near the wearer's crotch are thin and soft crotch side extension regions, the side flap part has a low feeling of wearing discomfort, and has good followability to the movement of the wearer's legs.
  • advantages such as being easy to stand up with respect to the absorbent main body and being able to adhere to the suspension without excessive tightening of the outer periphery of each side flap portion.
  • FIG. 33 to 38 show a 3-1 embodiment of the present invention.
  • FIG. 33 is a plan view of the diaper 2001A in a developed state.
  • 34 is a cross-sectional view taken along line A2-A2 of FIG. 35 is a cross-sectional view taken along line B2-B2 of FIG.
  • FIG. 36 is a cross-sectional view of the diaper 2001A in a worn state.
  • FIG. 37 is a cross-sectional view of the main part of the stretching apparatus.
  • FIG. 38A is a plan view before the center of the crotch region of the side flap portion of the diaper 2001A is pulled outward.
  • FIG. 38B is a plan view of a state in which the center end portion of the crotch region of one side flap portion of the diaper 2001A is pulled outward.
  • a diaper 2001A as an absorbent article includes an absorbent main body 2002, a pair of left and right side flap portions 2010 provided on both sides in the width direction W of the absorbent main body 2002, and a pair of A pair of dorsal waist flaps 2020 provided at both ends in the width direction W on the back side of the side flaps 2010 and a pair of ventral sides provided at both ends in the width direction W on the ventral side of the pair of side flaps 2010 A waist flap 2021.
  • the absorbent main body 2002 includes at least a liquid-permeable top sheet 2003, a liquid-impermeable back sheet 2004, and an absorber 2005 that is disposed between the top sheet 2003 and the back sheet 2004 and absorbs and holds liquid. Composed.
  • the diaper 2001A has a back side and a ventral side, and is provided with a back side region S21, a crotch region S22, and a ventral side region S23 in this order along the longitudinal direction L from the back side to the ventral side.
  • the absorbent main body 2002 has a back side region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction L from the back side to the abdominal side when worn, and covers the wearer's back side, crotch side, and ventral side.
  • the top sheet 2003 is folded so that both end portions in the width direction W wrap around the absorber 2005.
  • the portion of the top sheet 2003 folded in this way and the absorber 2005 are joined to the back sheet 2004 by glue such as hot melt.
  • the top sheet 2003 is a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, a hydrophobic nonwoven fabric having an aperture, a laminated nonwoven fabric manufactured by a spunbond method / melt blow method / spunbond method having a basis weight of 10 g / m 2 (hereinafter referred to as a “non-woven fabric”) , Written as SMS).
  • the back sheet 2004 is formed of a moisture permeable or non-moisture permeable film, a sheet obtained by bonding a nonwoven fabric to such a film, or the like.
  • the absorber 2005 is a laminated body having liquid absorption retention.
  • Absorber 2005 is formed by mixing absorbent pulp and superabsorbent polymer.
  • the pair of side flap portions 2010 is composed of a back sheet 2004 extended from both sides in the width direction W of the absorbent main body 2002 and a liquid-impermeable exterior sheet 2011.
  • the exterior sheet 2011 is overlaid on the back surface of the absorbent main body 2002 and the back sheet 2004.
  • the back sheet 2004 and the exterior sheet 2011 are joined with a paste such as hot melt.
  • the exterior sheet 2011 is formed to have a longer dimension in the width direction W than the back sheet 2004.
  • each side flap portion 2010 and the partial region of the back side region S21 and the abdomen side region S23 continuous to the crotch region S22 are stretched in the longitudinal direction L in four rows. 2012d is provided.
  • the outer three rows of elastic members 2012a to 2012c are provided on both sides of the exterior sheet 2011 formed longer in the width direction W than the back sheet 2004.
  • the innermost elastic member 2012d is disposed at a substantially central position between the side edge of the absorbent main body 2002 and the outermost elastic member 2012a.
  • the elastic member 2012d is provided between the exterior sheet 2011 and the back sheet 2004.
  • the elastic members 2012a to 2012d are, for example, polyurethane elastic yarns.
  • a crotch side extended region 2013 extended in the width direction W is provided in the crotch region S22 of each side flap portion 2010 and between the absorbent main body 2002 and the elastic member 2012a located on the outermost side.
  • the crotch side extension region 2013 is provided between the absorbent main body 2002 and the third row of elastic members 2012c from the outside.
  • Each crotch-side stretch region 2013 is a region having a lower basis weight than other regions by stretching.
  • Each crotch-side stretch region 2013 is stretched in a range of 1.5 to 3.0 times as compared with the width before stretching.
  • Each inseam extending region 2013 has transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each crotch-side stretched region 2013 is a transmittance that allows transmission from the outside to the inside. The light transmittance rises by 3% or more due to stretching, and if the light transmittance is 61% or more (measured according to JIS standard K7105), the internal excrement can be visually recognized from the outside.
  • region 2013 of this embodiment is provided in the width direction W of the side flap part 2010 between the absorptive main body 2002 and the elastic member 2012a located in the outermost side.
  • Each crotch side extended region 2013 is provided in the longitudinal direction L of the side flap portion 2010 over the entire range of the crotch region S22.
  • Each crotch side extended region 2013 does not extend to the dorsal region S21 or the ventral region S23 in this embodiment. A specific method for producing the crotch-side stretch region 2013 will be described in detail below.
  • the waist flap portion is composed of a pair of back side waist flap portions 2020 and a pair of ventral side waist flap portions 2021.
  • One end side of the pair of back side waist flap portions 2020 is fixed to the back side region S21 of the pair of side flap portions 2010.
  • a locking portion 2022 is provided on the distal end side of each back side waist flap portion 2020.
  • Each locking portion 2022 is a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force.
  • the material of the ventral waist flap 2021 is a sheet material having at least a non-woven surface.
  • the side flap portion 2010 is applied using a spiral spray so that a heat-sensitive adhesive (for example, hot melt, etc., hereinafter referred to as HMA) has a diameter of 15 mm and a basis weight of 5 g / m 2.
  • HMA heat-sensitive adhesive
  • the back sheet 2004 and the exterior sheet 2011 are bonded together.
  • the back sheet 2004 is a non-breathable film having a basis weight of 23.5 g / m 2 .
  • the exterior sheet 2011 is an SMS having a basis weight of 13 g / m 2 .
  • the stretching device 2030 that forms the crotch-side stretching region 2013 has a pair of stretching blade rows 2031 that face each other and can be engaged with each other.
  • Each stretched blade row portion 2031 has a blade depth of 2.5 mm, a pitch between a pair of blades of 1.25 mm, and a number of blades of 17.
  • the stretching apparatus 2030 performs a stretching process by setting the set temperature of the stretching blade row portion 2031 to 100 ° C. By stretching in this way, the crotch-side stretch region 2013 can be stretched 1.8 times as compared with before stretching.
  • the crotch-side stretched region 2013 is alternately provided with a dense portion with a small stretch amount and a rough portion with a large stretch amount in the width direction W of the side flap portion 2010.
  • the stretching amount can be varied by appropriately changing the above-mentioned conditions.
  • the width W21 of the crotch-side stretched region 2013 in FIG. 38 (a) is 1.5-3. It is in the range of 0 times.
  • the width W22 is the width of the crotch-side stretched region 2013 in a state in which the center end of the crotch region S22 of one side flap portion 2010 is pulled outward. That is, the width W22 can be stretched by a stretch ratio (1.5 to 3.0 times) with respect to the width W21. Accordingly, the crotch region S22 of each side flap portion 2010 can be expanded at the maximum by the stretch ratio (1.5 to 3.0 times) compared to the width dimension of the back region S21 and the ventral region S23.
  • the stretching amount is adjusted depending on the type of the sheet material, and the transmittance that the inside transmits from the outside is obtained.
  • each side flap portion 2010 When the wearer wears the diaper 2001A having the above-described configuration, as shown in FIG. 36, the outer periphery of each side flap portion 2010 is brought into close contact with the wearer's legs due to contraction of the elastic members 2012a and 2012b. Moreover, since the stretchable width dimension of the crotch region S22 of each side flap part 2010 is larger than the width dimension of the side flap part 2010 of the back side region S21 or the abdominal side region S23 by the pair of crotch side stretched regions 2013, the wearer A space, so-called pocket P, is formed on the crotch side.
  • Each crotch side extension region 2013 is formed by extending the crotch region S22 of each side flap portion 2010 in the width direction W. For this reason, each crotch side extension area
  • region 2013 can be formed with the material of the same width as the diaper which does not form what is called a pocket P in crotch area S22.
  • the diaper 2001A does not provide the side flaps 2010 with the folding as in the conventional example, and does not provide the elastic members 2012 in the curved shape in the side flaps 2010 as in the other conventional examples.
  • the pocket P can be formed on the crotch side of the wearer. As described above, the diaper 2001A can reduce the amount of materials used, facilitate the processing during manufacturing, and thus reduce the manufacturing cost.
  • surroundings near a wearer's inseam is thin and soft crotch side extending
  • There are advantages such as being able to improve the followability to movement, being easy to stand up with respect to the absorbent main body 2002, and being able to adhere to the suspension without overtightening the outer periphery of each side flap portion 2010.
  • each crotch-side stretched region 2013 is located in a region closer to the absorbent main body 2002 than a center line that bisects in the width direction W between the absorbent main body 2002 side edge and the outermost elastic member 2012a.
  • the diaper 2001A When the diaper 2001A is worn, it begins to bend from a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2002 and the side flap portion 2010. In this embodiment, this portion is a flexible crotch-side stretch region 2013. Therefore, the rising characteristics are good, and so-called pockets P are easily formed.
  • the diaper 2001A includes a dorsal waist flap portion 2020 and an abdominal waist flap portion 2021 provided so as to protrude from both sides of the dorsal region S21 and ventral region S23 of the pair of side flap portions 2010. And each crotch side extending
  • region 2013 is provided only in the range of crotch area
  • each crotch-side stretch region 2013 has transparency that allows internal excrement to be visually recognized from the outside when worn, the diaper 2001A can check whether or not there is excrement inside the diaper 2001A through the crotch-side stretch region 2013. It can be confirmed from. For this reason, the diaper 2001A can easily determine the replacement time and the like.
  • each crotch-side stretch region 2013, a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided along the width direction W of the side flap portion 2010. Therefore, in the manufacturing process of the diaper 2001A, the crotch-side stretched region 2013 is alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 2010 does not protrude and becomes linear. For this reason, the diaper 2001A has good handleability in the manufacturing process, product packaging process, and the like.
  • each crotch-side stretch region 2013 is stretched in a range of 1.5 to 3.0 times as compared with that before stretching.
  • the stretch amount of the crotch side stretch region 2013 is less than 1.5 times, the rising dimension of the side flap portion 2010 is so small that the elastic member 2012 may not adhere to the skin.
  • the stretch amount of the crotch side stretch region 2013 exceeds 3.0 times, the material of the side flap portion 2010 is greatly damaged by stretching, and material damage such as tearing or perforation may occur.
  • the stretch amount of the crotch side stretch region 2013 is in the range of 1.5 to 3.0 times, a space, so-called pocket, can be reliably formed in the crotch region S22 of the diaper 2001A without fear of material damage.
  • the side flap portion 2010 is configured by two layers of the exterior sheet 2011 and the backsheet 2004. However, each side flap portion 2010 may be configured by one layer of the backsheet 2004. . If the side flap part 2010 is comprised by 1 layer of the exterior sheet
  • the side flap portion 2010 may be configured by three layers of an exterior sheet 2011, a back sheet 2004, and a top sheet 2003. If the side flap part 2010 is comprised by three layers, the exterior sheet 2011, the back sheet 2004, and the top sheet 2003, the intensity
  • a sheet made of a different sheet material may be used at a position corresponding to the crotch-side stretch region 2013 and other positions. For example, if a sheet material suitable for stretching is used at the crotch stretch region 2013 and a sheet material suitable as a back sheet for the absorbent main body 2002 is used at other locations, the stretch processability and liquid The back sheet 2004 is excellent in both impermeability.
  • FIG. 39 is a cross-sectional view of a diaper 2001B according to Embodiment 3-2 of the present invention.
  • the diaper 2001B according to the third-second embodiment is different from the third-first embodiment in the configuration of the absorbent main body 2002 and the crotch-side stretch region 2013a of each side flap portion 2010.
  • the configuration is different. That is, the top sheet 2003 and the back sheet 2004 of the absorbent main body 2002 are joined only at the central portion in the width direction W by the joint portion 2006 and are not joined at both end portions in the width direction W. And each crotch side extending
  • each crotch-side stretch region 2013a is provided so as to extend to a region overlapping with the absorbent main body 2002. Therefore, since the width dimension of the crotch-side stretch region 2013a can be increased, the diaper 2001B is The space formed on the crotch side of the diaper 1D, that is, the so-called pocket can be deepened.
  • FIG. 40 is a cross-sectional view of a diaper 2001C according to Embodiment 3-3 of the present invention.
  • the diaper 2001C according to the 3-3 embodiment is different from the 3-1 embodiment only in the configuration of each side flap portion 2010.
  • Each side flap portion 2010 is branched into two, an inner flap portion 2010a and an outer flap portion 2010b, outside the side flap portion 2010 in the width direction W.
  • a sheet material having a good touch is used for the inner flap portion 2010a.
  • Elastic members 2012a, 2012b, 2012c, and 2012e are provided at the distal ends of both the inner flap portion 2010a and the outer flap portion 2010b in an expanded state. That is, when the diaper 2001C is worn, since the side flaps 2010 are in close contact with the suspension, the diaper 2001C can more reliably prevent side leakage.
  • the diaper 2001C has good touch because the inner flap portion 2010a is a sheet material with a good touch.
  • the elastic members 2012a, 2012b, 2012c, and 2012e are provided at the distal ends of both the inner flap portion 2010a and the outer flap portion 2010b.
  • An elastic member in an extended state may be provided only on the top.
  • the diaper 2001C has a so-called inversion solid gathering configuration.
  • FIG. 41 is a plan view showing a developed state of a diaper 2001D according to the third to fourth embodiments of the present invention.
  • each crotch-side stretch region 2013b has a width when the stretch region portion at the center position in the longitudinal direction L in the crotch region is stretched in the width direction W as compared to the stretch region portions at both ends in the longitudinal direction of each side flap portion 2010. It is provided to increase the dimensions. This is because the crotch-side stretched region 2013b has a width dimension that is stretched in the longitudinal direction L. Specifically, the width dimension of the extending region at the center position in the longitudinal direction L is set longer than the width of the extending region at both ends in the longitudinal direction.
  • the end of the crotch-side stretched region 2013b is constrained to a location that is not the crotch-side stretched region 2013b, so that the rising dimension at the end is small and the pocket has the largest rising dimension at the center. Therefore, the crotch-side stretched region 2013b can be made lean when forming the pocket.
  • the crotch-side stretched region 2013b has the same width dimension that has been stretched over the longitudinal direction L, and by varying the stretch amount per unit length, the stretched region portion at the center position in the longitudinal direction L is You may provide so that the width dimension at the time of extending (at the time of wear) may become large compared with the extending
  • FIG. 42 is a cross-sectional view of a diaper 2001E according to Embodiment 4-5 of the present invention.
  • the diaper 2001E according to the third to fifth embodiments is different from the third to first embodiments only in the configuration of a pair of crotch-side stretch regions 2013A.
  • Each crotch side extension region 2013A is provided to extend not only to the crotch region S22 of each side flap portion 2010 but also to the back side region S21 and the ventral side region S23. However, the back end and the abdominal end of the crotch-side stretch region 2013A do not reach the back end and the abdomen end of the side flap portion 2010.
  • the diaper 2001E since a space formed inside the diaper 2001E, so-called pockets, are formed in the back side region S21 and the ventral region S23 in addition to the crotch region S22, the diaper 2001E temporarily stores the excrement. Therefore, a large amount of excrement can be prevented more reliably.
  • the diaper 2001E is effective in preventing side leakage of both feces and urine.
  • each crotch side extended region 2013A extends from the crotch region S22 of each side flap portion 2010 only to the back side region S21.
  • the diaper is particularly effective in preventing lateral leakage of feces since a space formed inside the diaper, a so-called pocket, is also formed in the back region S21 in addition to the crotch region S22. .
  • each crotch-side stretch region 2013A extends from the crotch region S22 of each side flap portion 2010 only to the ventral region S23.
  • the diaper has a space formed inside the diaper, so-called pockets, which are also formed in the ventral region S23 in addition to the crotch region S22. It is.
  • each embodiment four rows of elastic members 2012a to 2012d are provided in each side flap portion 2010.
  • the elastic members may be provided in only one row or two rows at the side end portion of the side flap portion 2010. .
  • the number and arrangement positions of the elastic members can be changed as appropriate.
  • the present invention is applied to an open type diaper, but the present invention can be applied to a pant type diaper in the same manner. Moreover, this invention is applicable also to absorbent articles other than a diaper.
  • the diaper 3100 is disposed between a liquid-permeable top sheet 3101a, a liquid-impermeable back sheet (not shown), the top sheet 3101a, and the back sheet.
  • An absorbent article main body 3101 including an absorbent body 3101c that absorbs and holds is provided.
  • back side (rear side) Ba and “abdominal side (front side) Fr” are determined.
  • the back side Ba is a side that comes to the back side of the wearer when the diaper 3100 is worn
  • the ventral side Fr is a side that comes to the side of the wearer when the diaper 3100 is worn.
  • the diaper 3100 is provided with a back side region S1, a crotch region S2, and a ventral region S3 in order along the longitudinal direction L from the back side Ba to the ventral side Fr.
  • the absorbent article main body 3101 is configured to cover the entire crotch portion of the wearer from the wearer's back to the abdomen.
  • the side flap part 3110 is provided in the both sides of the width direction W of the absorbent article main body 3101 by extending the top sheet 3101a and a back sheet.
  • Each side flap portion 3110 is provided with an elastic member 3111 in the stretched state in the longitudinal direction L of the absorbent article main body 3101.
  • a pair of waist flap portions 3120 are provided in the back region S1 of each side flap portion 3110.
  • Each waist flap part 3120 is an elongate strip
  • a locking portion 3130 is attached to the end of each waist flap portion 3120.
  • the diaper 3100 is worn around the waist of the wearer by locking the locking portion 3130 attached to the end of one waist flap portion 3120 to the other waist flap portion 3120.
  • the fastening part 3140 is attached to the ventral region S3 of the absorbent article main body 3101.
  • the absorbent article main body 3101 covers the inseam of the wearer by causing the waist flap 3120 in a state worn around the waist of the wearer to be fastened from the outside.
  • the pair of waist flap portions 3120 when worn, can be disposed in a direction inclined to the wearer's back side with respect to the wearer's waistline direction, and thus the fit to the body is high.
  • an object of the present invention is to provide an absorbent article that does not increase the amount of materials used, has a troublesome manufacturing process, and has high fit to the body.
  • the first feature of the present invention is that the dorsal side and the ventral side are determined, and the dorsal region, the crotch region, and the ventral region are provided in order along the longitudinal direction from the dorsal side to the ventral side.
  • Absorbent comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber that is disposed between the top sheet and the back sheet and absorbs and holds liquid.
  • An absorbent article body a pair of side flap portions provided on the outer side in the width direction of the absorbent article body along the longitudinal direction on both sides in the width direction of the absorbent article body, and the back region
  • a pair of waist flap portions provided so as to protrude from the pair of side flap portions to the outside in the width direction of the absorbent article main body, and each of the pair of waist flap portions includes , Waist extension
  • Each of the waistline extending regions has a dimension extending in the width direction of the absorbent article body at the abdomen end, and the width of the absorbent article body at the back end.
  • each of the above-mentioned waistline extension field is formed so that it may reach the above-mentioned ventral edge in each of a pair of above-mentioned waist flap parts
  • each of the waistline stretching regions may be provided in a range not reaching the dorsal side edge of each of the pair of waist flap portions.
  • each of the waistline extending regions may be provided in a range reaching the dorsal side edge of each of the pair of waist flap portions.
  • each of the waistline stretching regions may be provided at a root position of each of the pair of waist flap portions.
  • the ventral side edge of each of the waistline stretching regions may be stretched in a range of 1.1 to 3.0 times.
  • FIG. 44 to 50 show a 4-1 embodiment of the present invention
  • FIG. 44 shows a plan view of the diaper in a developed state
  • FIG. 45 shows a cross-sectional view taken along line AA of FIG. 46 shows a cross-sectional view taken along the line BB of FIG. 44
  • FIG. 47 shows a cross-sectional view taken along the line CC of FIG. 44
  • FIG. 48 shows a cross-sectional view of the main part of the stretching apparatus
  • FIG. FIG. 50 is a plan view of a stretching device 3030 for processing, that is, a stretched state of the waistline stretching region
  • FIG. 50 is a side view of the diaper 1A in a worn state, that is, a diaper mounted state.
  • the diaper 3001A which is an absorbent article, includes an absorbent article body 3002, a pair of side flap portions 3010, a pair of back side waist flap portions (waist flap portions) 3020, and a pair.
  • the ventral side waist flap part 3021 is provided.
  • the back side Ba and the abdominal side Fr are determined, and the back side region S1, the crotch region S2, and the abdomen are sequentially arranged along the longitudinal direction L from the back side Ba to the abdominal side Fr.
  • a side region S3 is provided.
  • the pair of side flap portions 3010 are formed in the width direction W of the absorbent article main body 3002 along the longitudinal direction L of the absorbent article main body 3002 on both sides of the absorbent article main body 3002 in the width direction W. Is provided outside.
  • pair of back side waist flap portions 3020 are provided so as to protrude from the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002 in the back side region S1.
  • the pair of ventral side waist flap portions 3021 is provided so as to protrude from the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002 in the ventral side region S3.
  • the absorbent article main body 3002 is disposed between the liquid-permeable top sheet 3003, the liquid-impermeable back sheet 3004, and the top sheet 3003 and the back sheet 3004, and absorbs and holds the liquid 3005. And at least.
  • the top sheet 3003 is formed of a hydrophilic nonwoven fabric, a woven fabric, a hydrophobic nonwoven fabric having openings, or the like.
  • the back sheet 3004 is formed of a liquid impermeable nonwoven fabric, a liquid impermeable film, a hydrophilic nonwoven fabric and a sheet obtained by bonding a liquid impermeable film.
  • the back sheet 3004 is a laminate of a liquid impermeable film 3004a and a liquid impermeable nonwoven fabric 3004b.
  • the absorbent body 3005 a laminated body in which absorbent pulp and a super absorbent polymer are mixed is used.
  • the pair of side flap portions 3010 are formed by a top sheet 3003 and a back sheet 3004 extending from both sides of the absorbent article main body 3002 in the width direction W.
  • An elastic member 3012 is provided in an extended state along the longitudinal direction L in at least the crotch region S2 of the pair of side flap portions 3010.
  • the elastic member 3012 is made of four polyurethane elastic yarns 470 dtex that are elongated at a magnification of 2.2 times.
  • the pair of back waist flap portions 3020 and the pair of abdominal waist flap portions 3021 extend in a direction corresponding to the wearer's waistline direction (width direction W of the absorbent article main body 302).
  • the pair of back-side waist flap portions 3020 is provided so as to protrude from the back-side region S1 of the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002, and the pair of belly-side waists
  • the flap portion 3021 is provided so as to protrude from the ventral region S3 of the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002.
  • the back-side dorsal waist flap portion 3020 and the ventral-side waist flap portion 3021 are formed of a liquid-impermeable nonwoven fabric.
  • the pair of back side waist flap portions 3020 is formed of a liquid-impermeable and heat-extensible nonwoven fabric, and the pair of back side waist flap portions 3020 in the present embodiment includes an SMS 13 g / It is formed by bonding two sheet materials of m 2 (see FIG. 46).
  • a locking portion 3022 is provided on the distal end side of the pair of back side waist flap portions 3020.
  • the locking portion 3022 engages with the ventral waist flap portion 3021, and a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force can be used.
  • the material of the ventral side waist flap portion 3021 is a sheet material having at least the surface of the nonwoven fabric.
  • a waistline extending region 3023 is formed in each of the pair of back waist flap portions 3020.
  • Each of the waistline stretching regions 3023 is provided in the vicinity of the side flap portion 3010, that is, at the root position.
  • each of the waistline stretching regions 3023 is formed to extend along the longitudinal direction L of the absorbent article main body 3002 from the edge of the ventral side Fr.
  • the end of the back side Ba in the waistline extending region 3023 is up to the front of the edge of the backside Ba in each backside waist flap portion 3020, and the waistline extending region 3023 is the back side Ba in each backside waist flap portion 3020. Therefore, the non-stretched region F exists around the edge of the back side Ba in each back side waist flap portion 3020.
  • the length of the waistline stretching region 3023 is set to 100 mm, and the length of the non-stretching region F is set to 10 mm.
  • the waistline stretching region 3023 is a region weighed lower than other regions by stretching.
  • the waistline stretching region 3023 formed by the stretching process includes a dense portion (not labeled) having a small stretch amount along the width direction W of the side flap portion 3010 and a rough portion having a large stretch amount. (Without reference numerals) are alternately provided.
  • the dimension extending in the width direction W of the end portion of the belly side Fr in the waistline stretching region 3023b is larger than the dimension extending in the width direction W of the end portion of the back side Ba in the waistline stretching region 3023b.
  • diaper 1A can fit a wearer's crotch part.
  • X is a dimension in the width direction W of the waistline stretching region 3023 (that is, a stretching amount) before stretching
  • Y is a dimension in the width direction W of the waistline stretching region 3023 stretched by stretching (that is, stretching). Amount).
  • X ⁇ Y is set, but it is preferable to set the dimensional difference between Y and X to be 0.5 to 10 cm.
  • the dimensional difference is less than 0.5 cm, the difference in the distance before and after stretching is reduced for children with a circumference difference of 1 cm or more at the minimum between the waist and hip.
  • the circumferential length gap cannot be compensated by the extension distance of the waistline stretching region 23.
  • the stretching device 3030 has a pair of stretching blade rows 3031 that face each other and can be engaged with each other.
  • the blade depth is 2 mm
  • the pitch between the pair of blades is 1.25 mm
  • the number of blades is 17.
  • the pair of back-side waist flap portions 3020 is heated to a temperature near the softening point, and then inserted between the extending blade row portions 3031.
  • the set temperature of the extending blade row portion 3031 is set to 100 ° C. and subjected to drawing processing.
  • the material of the pair of back side waist flap portions 3020 approaches the softening point, so that it is easy to extend and material damage due to the stretching process can be reduced.
  • preliminary heating may be performed before the stretched blade row portion 3031.
  • a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided in the width direction W.
  • the diaper 3001A is put into a wearing state by locking the locking portions 3022 of the pair of back side waist flap portions 3020 to the surfaces of the pair of abdominal side waist flap portions 3021.
  • each side flap portion 3010 When the wearer wears the diaper 3001A, the outer periphery of each side flap portion 3010 is brought into close contact with the circumference of the wearer's legs due to the contraction of the elastic members 3012a to 3012d.
  • the non-stretched region F does not extend in the width direction W of the absorbent article main body 3101, but the waistline stretched region 3023 extends in the width direction W of the absorbent article main body 3101. As described above, a dimensional difference between X and Y occurs.
  • the edge of the abdominal side Fr in the waistline extending region 3023 of the pair of back waist flap portions 3020 can be sufficiently sized to wrap the hip portion and there is no risk of material damage.
  • the film is preferably stretched in the range of 0.1 to 3.0 times.
  • the waist size of the pair of back side waist flap portions 3021 may be small and the hip portion may not be sufficiently wrapped, and if the stretch amount exceeds 3.0 times, This is because damage due to stretching is so great that material damage such as tearing or perforation may occur.
  • the edge of the ventral side Fr in the waistline stretching region 3023 is stretched in a range of 1.2 to 2.0 times in consideration of fit to the hip portion and prevention of material damage.
  • each back side waist flap 3020 can be provided in the direction (width direction W of the absorbent article main body 2) corresponding to a wearer's waistline direction, it does not increase a use material and the manufacturing process is carried out. There is no trouble.
  • the waistline extending region 3023 extends and the whole does not extend in the pair of back side waist flap portions 3020, the waistline dimensions before wearing are maintained even when the diaper 3001A is worn, and the diaper 3001A is displaced. There is no.
  • non-stretch region F since there is a portion (non-stretch region F) other than the waistline stretch region 3023 in the longitudinal direction L of the pair of back side waist flap portions 3020, the strength of the pair of back side waist flap portions 3021 is reduced. Can be prevented as much as possible.
  • the waistline extending region 3023 is provided at the root position of the pair of back side waist flap portions 3020 (in the vicinity of the side flap portion 3010), the front ends in the width direction W of the pair of back side waist flap portions 3020 Since the amount of change with respect to the inclination at can be greatly increased, the desired amount of change can be obtained with the width of the waistline stretching region 3023 having a small width.
  • the angle formed by the imaginary line in the width direction W of the diaper 3001A, which is generated when the back-side waist flap portion 3020 is extended, is preferably 0 to 30 °.
  • the angle When the angle is less than 0 °, the distance around the waist becomes longer than the distance around the hip, so that fit cannot be obtained. When the angle exceeds 30 °, the direction around the waist This is not preferable because the tension of the back waist flap portion 3020 is difficult to be applied and the fit property is lowered.
  • a pair of back side waist flap part 3020 and a pair of abdominal side waist flap part 3021 comprised with a pair of side flap part 3010 and another member are comprised by the same member. May be. If comprised in this way, manufacture of diaper 3001A can be simplified.
  • FIG. 51 is a plan view of a diaper 3001B according to a 4-2 embodiment of the present invention.
  • FIG. 51 (a) shows a plan view of the diaper 3001B before wearing
  • FIG. 51 (b) shows a state after wearing.
  • the top view of diaper 3001B of is shown.
  • the waistline extending region 3023 is formed up to both edges in the longitudinal direction L of each back waist flap portion 3020 as compared to the 4-1 embodiment.
  • the waistline extending region 3023 is formed over the entire length of the pair of back waist flap portions 3020.
  • the waistline stretching region 3023 has the same width dimension that is stretched over the entire length of the back waist flap portion 3020, but the stretch amount per unit length is different.
  • the width dimension when the waistline extending region portion 3023 on the ventral side Fr is stretched (when worn) is larger than the waistline extending region portion 3023 on the back side Ba.
  • the width dimension of the waistline stretching region 3023 before wearing is the H dimension, but as shown in FIG. 51 (b), the waistline stretching region on the back side Ba after wearing.
  • the portion 3023 has an I dimension (H ⁇ I), and the waistline extending region portion 3023 on the abdomen Fr after wearing has a J dimension (H ⁇ J and I ⁇ J).
  • the stretching process in the manufacture of the diaper 3001B of the present embodiment is possible by changing the depth of the blade of the stretched blade row portion 3031 between the back side Ba and the ventral side Fr.
  • the waistline stretching region 3023 has the same stretching width in the longitudinal direction L, but the end of the waistline stretching region 3023 is constrained to a portion that is not the waistline stretching region 3023, so The stretching amount is small, and the stretching amount increases as the distance from the end increases.
  • (4-3 embodiment) 52 is a plan view of a diaper 3001C according to a fourth to third embodiment of the present invention.
  • FIG. 52 (a) shows a plan view of a diaper 3001B before wearing
  • FIG. 52 (b) shows a state after wearing. The top view of diaper 3001B of is shown.
  • the waistline extending region 3023 is formed over the entire length of the pair of back waist flap portions 3020, as in the 4-2 embodiment.
  • the waistline stretching region 3023 has a different width dimension that is stretched over the entire length of the pair of back side waist flap portions 3020, and the waistline stretching region portion 3023a on the abdominal side Fr has a large width dimension.
  • the width dimension of the waistline extending region 3023b in Ba is set small.
  • This provides a larger width dimension when the waistline extending region portion 3023a on the ventral side Fr is stretched (when worn) than the waistline extending region portion 3023b on the back side Ba.
  • the width dimension of the waistline stretching region 3023 before wearing is an H dimension
  • the waistline stretching region on the back side Ba after wearing is the width of the portion 3023b
  • the width of the waistline extending region 3023a on the abdomen Fr after wearing is the J dimension (H ⁇ J and I ⁇ J).
  • the amount of change with respect to the inclination at the tip in the width direction W of the pair of back-side waist flap portions 3020 can be greatly increased, the width dimension, the degree of stretching, etc. of the waistline stretching region 3023 can be made as small as possible. It can be a shift amount.
  • FIG. 53 is a plan view of a diaper 3001D according to Embodiment 4-4 of the present invention.
  • the diaper 3001D according to the fourth to fourth embodiments is a belt type so that the pair of back waist flap portions 3020 extends long in a direction (width direction W) perpendicular to the longitudinal direction L of the absorbent article main body 3002. Is provided.
  • the one back side waist flap part 3020 is provided with a locking part 3022.
  • the pair of abdominal side waist flap portions 3021 is also provided in the width direction W of the absorbent article main body 3002, and a locking portion 3024 is provided on the surface thereof, so that the diaper 3001D can be worn. .
  • the fit is improved by providing the waistline stretching region 3023 outside the side flap portions 3010.
  • the absorbent article according to the present invention is an absorbent article that can be fitted to the wearer, and can reduce the amount of materials used, facilitate processing during manufacturing, and the like. Useful in articles.
  • the absorbent article according to the present invention can prevent bleeding and leakage, and has good air permeability.
  • the absorbent article according to the present invention is to form a so-called pocket on the wearer's crotch side, and can reduce the amount of materials used, facilitate the processing during manufacture, and thus reduce the manufacturing cost. it can. For this reason, it is useful in absorbent articles such as diapers.
  • a pair of waist flap part can be extended in the direction (width direction W of an absorbent article main body) corresponding to a wearer's trunk periphery direction at the time of product manufacture.
  • a pair of waist flap portions can be arranged in a direction in which each waistline extending region is inclined toward the wearer's back side with respect to the wearer's waistline direction.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Disclosed is a diaper (1A) comprising: an absorbent main body (2) which comprises at least a liquid-permeable top sheet (3), a liquid-impermeable back sheet (4) and an absorbent body (5) which is disposed between the top sheet and the back sheet for the purpose of absorbing and retaining liquid, and which has a back side region (S1), a crotch region (S2) and a front side region (S3) in the longitudinal direction L running from the back side Ba to the front side Fr when the nappy is being worn; and a pair of left and right side flap parts (10) which are provided on both sides of the absorbent main body (2) in the width direction W, wherein a front side extension region (15) which extends around the waist is provided in the front side region (S3) of each of the side flap parts (10).

Description

吸収性物品Absorbent articles
本発明は、オムツ等の吸収性物品に関する。 The present invention relates to an absorbent article such as a diaper.
　従来、液透過性のトップシートと、液不透過性のバックシートと、吸収体とからなる吸収性本体を備えているオムツが広く知られている（例えば、特許文献１）。 Conventionally, a diaper having an absorbent main body composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber is widely known (for example, Patent Document 1).
　具体的には、オムツ１００は、図１に示すように、液透過性のトップシート１０１ａと、液不透過性のバックシート１０１ｂと、シート１０１ａ、１０１ｂの間に配置される吸収体１０１ｃとからなる吸収性本体１０１を備えている。吸収体１０１ｃは、液体を吸収し、液体を保持する。 Specifically, as shown in FIG. 1, the diaper 100 includes a liquid-permeable top sheet 101a, a liquid-impermeable back sheet 101b, and an absorbent body 101c disposed between the sheets 101a and 101b. The absorptive main body 101 is provided. The absorber 101c absorbs the liquid and holds the liquid.
　吸収性本体１０１は、背側Ｂａから腹側Ｆｒまでの長手方向Ｌに背側領域Ｓ１、股下領域Ｓ２、腹側領域Ｓ３を有するとともに、着用者の股下を中心に背側Ｂａから腹側Ｆｒを覆う。吸収性本体１０１の幅方向Ｗの両側には、トップシート１０１ａとバックシート１０１ｂとが延在されることによって形成された左右一対のサイドフラップ部１１０が設けられている。なお、吸収性本体１０１の幅方向Ｗとは、オムツ１００の平面視において、背側Ｂａから腹側Ｆｒまでの長手方向Ｌに対して、直交する方向である。それぞれのサイドフラップ部１１０には、長手方向Ｌに伸長状態で弾性部材１２０が設けられている。 The absorbent main body 101 has a dorsal region S1, a crotch region S2, and a ventral region S3 in the longitudinal direction L from the back side Ba to the ventral side Fr, and from the back side Ba to the ventral side Fr with the crotch of the wearer as a center. Cover. On both sides in the width direction W of the absorbent main body 101, a pair of left and right side flap portions 110 formed by extending the top sheet 101a and the back sheet 101b are provided. The width direction W of the absorbent main body 101 is a direction orthogonal to the longitudinal direction L from the back side Ba to the ventral side Fr in the plan view of the diaper 100. Each side flap portion 110 is provided with an elastic member 120 in an elongated state in the longitudinal direction L.
　一対の弾性部材１２０は、吸収性本体１０１の長手方向Ｌにストレートではなく湾曲して設けられている。これにより、一対の弾性部材１２０間の距離は、背側領域Ｓ１よりも腹側領域Ｓ３の方が広く設定されている。 The pair of elastic members 120 are provided to be curved in the longitudinal direction L of the absorbent main body 101 instead of being straight. Thereby, the distance between the pair of elastic members 120 is set wider in the ventral region S3 than in the dorsal region S1.
　この従来例では、着用時に着用者のそけい部に沿ってオムツ１００をフィットさせることができるため、着用性に優れていると共に、オムツ１００の腹側Ｆｒと着用者の間に空間が形成され、この空間によって尿を一時的に保持可能であり、尿漏れを極力防止できる。 In this conventional example, since the diaper 100 can be fitted along the wearer's throat portion when worn, the wearability is excellent, and a space is formed between the ventral side Fr of the diaper 100 and the wearer. In this space, urine can be temporarily held, and leakage of urine can be prevented as much as possible.
　また、この種の従来のオムツとしては、特許文献２に開示されたものがある。具体的には、オムツ１００Ａは、図２に示すように、オムツ１００と同様に、液透過性のトップシート１０１ｄと、液不透過性のバックシート１０１ｅと、シート１０１ｄ、１０１ｅの間に配置される吸収体１０１ｆとからなる吸収性本体１０１Ａを備えている。 Also, as this type of conventional diaper, there is one disclosed in Patent Document 2. Specifically, as shown in FIG. 2, the diaper 100A is disposed between the liquid-permeable top sheet 101d, the liquid-impermeable back sheet 101e, and the sheets 101d and 101e, as with the diaper 100. An absorbent main body 101A including the absorbent body 101f is provided.
　一対の弾性部材１２０Ａ間の距離は、腹側領域Ｓ３よりも背側領域Ｓ１の方が広く設定されている点で、オムツ１００の構成と異なる。 The distance between the pair of elastic members 120A is different from the configuration of the diaper 100 in that the dorsal region S1 is set wider than the ventral region S3.
　この従来例では、着用時にオムツ１００Ａを着用者のヒップを包み込むようにフィットさせることができるため、着用性に優れている。
特開平１１－４７１８９号公報（第２－３頁、図１） 特開平１０－２４３９６１号公報（第３頁、図１） In this conventional example, the diaper 100 </ b> A can be fitted so as to wrap the wearer's hips when worn, so that the wearability is excellent.
JP 11-47189 A (page 2-3, FIG. 1) Japanese Patent Laid-Open No. 10-243961 (page 3, FIG. 1)
　しかしながら、従来のオムツ１００（オムツ１００Ａ）では、左右一対の弾性部材１２０（弾性部材１２０Ａ）の距離が背側領域Ｓ１、股下領域Ｓ２、腹側領域Ｓ３で異なるように湾曲させている。このため、トップシート１０１ａ（トップシート１０１ｄ）及びバックシート１０１ｂ（バックシート１０１ｅ）を曲線状に切り取ってサイドフラップ部１１０（サイドフラップ部１１０Ａ）を形成する必要がある。従って、トップシート１０１ａ（トップシート１０１ｄ）及びバックシート１０１ｂ（バックシート１０１ｅ）を曲線状に切り取る場合、資材の無駄が発生する。 However, in the conventional diaper 100 (diaper 100A), the distance between the pair of left and right elastic members 120 (elastic member 120A) is curved so as to be different in the back region S1, the crotch region S2, and the abdominal region S3. For this reason, it is necessary to cut the top sheet 101a (top sheet 101d) and the back sheet 101b (back sheet 101e) in a curved shape to form the side flap part 110 (side flap part 110A). Therefore, when the top sheet 101a (top sheet 101d) and the back sheet 101b (back sheet 101e) are cut out in a curved shape, waste of materials occurs.
　また、弾性部材１２０（弾性部材１２０Ａ）を湾曲させて配置させるため、加工が複雑である。 Moreover, since the elastic member 120 (elastic member 120A) is curved and arranged, the processing is complicated.
　そこで、本発明は、着用者にフィットさせることができるものにあって、使用資材の低減化、製造時の加工の容易化を図ることができる吸収性物品を提供することを目的とする。 Therefore, an object of the present invention is to provide an absorbent article that can be fitted to a wearer and can reduce the amount of materials used and facilitate the processing during manufacture.
　本発明の特徴は、液透過性のトップシート（トップシート３）と、液不透過性のバックシート（バックシート４）と、前記トップシートと前記バックシート間の間に配置され、液体を吸収し保持する吸収体（吸収体５）とから少なくとも構成され、着用時には背側Ｂａから腹側Ｆｒまでの長手方向Ｌに背側領域（背側領域Ｓ１）、股下領域（股下領域Ｓ２）、腹側領域（腹側領域Ｓ３）を有する吸収性本体（吸収性本体２）と、前記吸収性本体の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部（サイドフラップ部１０）とを備えた吸収性物品（例えば、オムツ１Ａ）において、前記各サイドフラップ部の腹側領域には、胴回り方向（幅方向Ｗ）に延伸された腹側延伸領域（腹側延伸領域１５）が設けられたことを要旨とする。 A feature of the present invention is that it is disposed between a liquid-permeable top sheet (top sheet 3), a liquid-impermeable back sheet (back sheet 4), and between the top sheet and the back sheet, and absorbs liquid. And an absorbent body (absorber body 5) that is held and held, and when worn, in the longitudinal direction L from the back side Ba to the abdominal side Fr in the longitudinal direction L (back side area S1), crotch area (inseam area S2), abdomen An absorbent main body (absorbent main body 2) having a side region (ventral side region S3) and a pair of left and right side flap portions (side flap portions 10) provided on both sides in the width direction W of the absorbent main body. In the absorbent article (for example, diaper 1A), the ventral region of each side flap portion was provided with a ventral stretch region (ventral stretch region 15) stretched in the waistline direction (width direction W). This is the gist.
　かかる特徴によれば、着用者が吸収性物品を着用した場合に、吸収性本体及び一対のサイドフラップ部の腹回りの寸法は、腹側延伸領域によって他の箇所より広くなるため、着用時に着用者のそけい部に沿って吸収性物品をフィットさせることができる。 According to such a feature, when the wearer wears an absorbent article, the size of the abdomen around the absorbent main body and the pair of side flap portions becomes wider than the other parts depending on the abdominal stretch region, so it is worn when worn. The absorbent article can be fitted along the heel portion of the person.
　これにより、吸収性物品は、着用性に優れていると共に、吸収性本体及び一対のサイドフラップ部の腹側Ｆｒと着用者の間に空間を形成し、この空間によって尿を一時的に保持可能であり、尿漏れを極力防止できる。そして、腹側延伸領域は一対のサイドフラップ部の一部を延伸させて形成するため、各サイドフラップ部の腹側Ｆｒを他の箇所よりも胴回り方向に大きく形成、つまり、腹側Ｆｒの胴回り方向の端縁を曲線状に設けなくて良い。以上より、着用時に着用者のそけい部に沿って吸収性物品をフィットさせることができ、且つ、吸収性物品の腹側Ｆｒと着用者の間に空間を形成することができるものにあって、使用資材の低減化、加工の容易化、これらに伴う低コスト化等を図ることができる。 Thus, the absorbent article is excellent in wearability, and forms a space between the absorbent main body and the abdomen Fr of the pair of side flap portions and the wearer, and urine can be temporarily held by this space. It is possible to prevent urine leakage as much as possible. And since the ventral region is formed by extending a part of the pair of side flap portions, the ventral side Fr of each side flap portion is formed larger in the waist direction than the other portions, that is, the waist side of the ventral side Fr. The edge in the direction does not have to be provided in a curved shape. As described above, the absorbent article can be fitted along the wearer's throat portion when worn, and a space can be formed between the stomach side Fr of the absorbent article and the wearer. Thus, it is possible to reduce the amount of materials used, facilitate processing, and reduce costs associated with these.
　本発明の特徴は、液透過性のトップシート（トップシート３）と、液不透過性のバックシート（バックシート４）と、前記トップシートと前記バックシート間の間に配置され、液体を吸収し保持する吸収体（吸収体５）とから少なくとも構成され、着用時には背側Ｂａから腹側Ｆｒまでの長手方向Ｌに背側領域（背側領域Ｓ１）、股下領域（股下領域Ｓ２）、腹側領域（腹側領域Ｓ３）を有する吸収性本体（吸収性本体２）と、前記吸収性本体の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部（サイドフラップ部１０）とを備えた吸収性物品（例えば、オムツ１Ｅ）において、前記各サイドフラップ部の背側領域には、胴回り方向（幅方向Ｗ）に延伸された背側延伸領域（背側延伸領域１４）がそれぞれ設けられたことを要旨とする。 A feature of the present invention is that it is disposed between a liquid-permeable top sheet (top sheet 3), a liquid-impermeable back sheet (back sheet 4), and between the top sheet and the back sheet, and absorbs liquid. And an absorbent body (absorber body 5) that is held and held, and when worn, in the longitudinal direction L from the back side Ba to the abdominal side Fr in the longitudinal direction L (back side area S1), crotch area (inseam area S2), abdomen An absorbent main body (absorbent main body 2) having a side region (ventral side region S3) and a pair of left and right side flap portions (side flap portions 10) provided on both sides in the width direction W of the absorbent main body. In the absorbent article (for example, diaper 1E), the back side region of each side flap part is provided with a back side extended region (back side extended region 14) extended in the waistline direction (width direction W). With the gist That.
　かかる特徴によれば、着用者が着用した場合に、一対のサイドフラップ部の背側Ｂａの胴回り幅の寸法が背側延伸領域によって広がるため、吸収性本体及び一対のサイドフラップ部の背側Ｂａでお尻を包み込むようにフィットさせることができ、着用性に優れている。又、吸収性本体及び一対のサイドフラップ部の背側Ｂａでお尻を包み込んだ状態で着用者と吸収性本体との間に空間が形成可能であるため、その空間によって排出された排泄物を一時的に保持可能であり、排泄物の漏れを極力防止できる。そして、背側延伸領域は一対のサイドフラップ部の一部を延伸させて形成するため、各サイドフラップ部の背側Ｂａを他の箇所よりも胴回り方向に大きく形成、つまり、背側Ｂａの胴回り方向の端縁を曲線状に設けなくて良い。以上より、着用者のヒップを包み込むようにフィットさせることができるものにあって、使用資材の低減化、加工の容易化、これらに伴う低コスト化等を図ることができる。 According to such a feature, when the wearer wears, the size of the waistline width of the back side Ba of the pair of side flap portions is widened by the back-side stretched region, so the back side Ba of the absorbent main body and the pair of side flap portions. It can be fitted to wrap your hips, and it is easy to wear. In addition, since a space can be formed between the wearer and the absorbent main body in a state where the buttocks are wrapped with the back side Ba of the absorbent main body and the pair of side flap portions, excrement discharged by the space can be formed. It can be temporarily held, and the leakage of excrement can be prevented as much as possible. And since the dorsal stretch region is formed by stretching a part of the pair of side flap portions, the dorsal side Ba of each side flap portion is formed larger in the waistline direction than the other portions, that is, around the waist of the back side Ba The edge in the direction does not have to be provided in a curved shape. From the above, it is possible to fit the wearer's hip so as to wrap the wearer's hips, and it is possible to reduce the materials used, facilitate the processing, and reduce the costs associated therewith.
　本発明によれば、着用者にフィットさせることができるものにあって、使用資材の低減化、製造時の加工の容易化等を図ることができる。 According to the present invention, it can be fitted to the wearer, and it is possible to reduce the amount of materials used and facilitate the processing during manufacturing.
図１は、従来例のオムツの展開状態を示す平面図である。FIG. 1 is a plan view showing a developed state of a conventional diaper. 図２は、従来例のオムツの展開状態を示す平面図である。FIG. 2 is a plan view showing an unfolded state of a conventional diaper. 図３は、本発明の第１－１実施形態に係るオムツの展開状態を示す平面図である。FIG. 3 is a plan view showing a developed state of the diaper according to Embodiment 1-1 of the present invention. 図４は、本発明の第１－１実施形態に係るオムツ（図３）のＡ－Ａ線断面図である。FIG. 4 is a cross-sectional view taken along line AA of the diaper (FIG. 3) according to the 1-1 embodiment of the present invention. 図５は、本発明の第１－１実施形態に係るオムツ（図３）のＢ－Ｂ線断面図である。FIG. 5 is a cross-sectional view of the diaper (FIG. 3) according to the 1-1 embodiment of the present invention taken along line BB. 図６は、本発明の第１－１実施形態に係るオムツの着用時における図３のＢ－Ｂ線に沿う断面図である。6 is a cross-sectional view taken along line BB of FIG. 3 when the diaper according to the first to first embodiments of the present invention is worn. 図７は、本発明の第１－１実施形態に係るオムツの着用時における展開状態を示す平面図である。FIG. 7 is a plan view showing a developed state when the diaper according to the first to first embodiments of the present invention is worn. 図８は、本発明の第１－１実施形態に係るオムツを製造する延伸装置の要部断面図である。FIG. 8 is a sectional view of an essential part of a stretching apparatus for producing a diaper according to Embodiment 1-1 of the present invention. 図９は、本発明の第１－２実施形態に係るオムツの平面図である。FIG. 9 is a plan view of a diaper according to the first to second embodiments of the present invention. 図１０は、本発明の第１－３実施形態に係るオムツの断面図である。FIG. 10 is a cross-sectional view of a diaper according to Embodiment 1-3 of the present invention. 図１１は、本発明の第１－４実施形態に係るオムツの断面図である。FIG. 11 is a cross-sectional view of a diaper according to Embodiment 1-4 of the present invention. 図１２は、本発明の第１－５実施形態に係るオムツの展開状態を示す平面図である。FIG. 12 is a plan view showing a developed state of the diaper according to Embodiment 1-5 of the present invention. 図１３は、本発明の第１－５実施形態に係るオムツのC－C線断面図である。FIG. 13 is a cross-sectional view taken along the line CC of the diaper according to the first to fifth embodiments of the present invention. 図１４は、本発明の第１－５実施形態に係るオムツのD－D線断面図である。FIG. 14 is a sectional view taken along line DD of the diaper according to Embodiment 1-5 of the present invention. 図１５は、本発明の第１－５実施形態に係るオムツの着用時における図１２のD－D線に沿う断面図である。15 is a cross-sectional view taken along the line DD of FIG. 12 when the diaper according to the first to fifth embodiments of the present invention is worn. 図１６は、本発明の第１－５実施形態に係るオムツの着用時における展開状態を示す平面図である。FIG. 16 is a plan view showing a developed state when the diaper is worn according to the first to fifth embodiments of the present invention. 図１７は、本発明の第１－６実施形態に係るオムツの平面図である。FIG. 17 is a plan view of a diaper according to Embodiment 1-6 of the present invention. 図１８は、本発明の第１－７実施形態に係るオムツの平面図である。FIG. 18 is a plan view of a diaper according to Embodiment 1-7 of the present invention. 図１９は、本発明の第１－８実施形態に係るオムツの断面図である。図の展開状態を示す。FIG. 19 is a cross-sectional view of a diaper according to Embodiment 1-8 of the present invention. The development state of a figure is shown. 図２０は、本発明の第１－９実施形態に係るオムツの断面図である。図の展開状態を示す。FIG. 20 is a cross-sectional view of a diaper according to Embodiment 1-9 of the present invention. The development state of a figure is shown. 図２１は、本発明の第２－１実施形態に係るオムツの断面図である。FIG. 21 is a cross-sectional view of a diaper according to Embodiment 2-1 of the present invention. 図２２は、本発明の第２－２実施形態に係るオムツの展開状態の平面図である。FIG. 22 is a plan view of a developed state of the diaper according to the 2-2 embodiment of the present invention. 図２３は、図２２のＡ１－Ａ１線断面図である。23 is a cross-sectional view taken along line A1-A1 of FIG. 図２４は、図２２のＢ１－Ｂ１線断面図である。24 is a cross-sectional view taken along line B1-B1 of FIG. 図２５は、高透湿化の距離を示すオムツの平面図である。FIG. 25 is a plan view of a diaper showing the distance of moisture permeation. 図２６は、高透湿化の距離を示すオムツの平面図である。FIG. 26 is a plan view of a diaper showing the distance of moisture permeation. 図２７は、延伸装置の断面図である。FIG. 27 is a cross-sectional view of the stretching apparatus. 図２８は、本発明の第２－３実施形態に係るオムツを示す断面図である。FIG. 28 is a cross-sectional view showing a diaper according to Embodiment 2-3 of the present invention. 図２９は、本発明の第２－４実施形態に係るオムツを示す断面図である。FIG. 29 is a sectional view showing a diaper according to Embodiment 2-4 of the present invention. 図３０は、本発明の第２－５実施形態に係るオムツのを示す断面図である。FIG. 30 is a cross-sectional view showing a diaper according to Embodiment 2-5 of the present invention. 図３１は、本発明の第２－６実施形態に係るオムツのを示す平面図である。FIG. 31 is a plan view showing a diaper according to Embodiment 2-6 of the present invention. 図３２は、（ａ）は従来例のオムツの斜視図、（ｂ）は他の従来例のオムツの展開時の平面図である。FIG. 32A is a perspective view of a conventional diaper, and FIG. 32B is a plan view when another conventional diaper is developed. 図３３は、本発明の第３－１実施形態に係るオムツを示し、オムツの展開状態の平面図である。FIG. 33 shows a diaper according to Embodiment 3-1 of the present invention, and is a plan view of the diaper in a developed state. 図３４は、本発明の第３－１実施形態に係るオムツを示し、図３３のＡ２－Ａ２線断面図である。34 shows a diaper according to Embodiment 3-1 of the present invention, and is a cross-sectional view taken along line A2-A2 of FIG. 図３５は、本発明の第３－１実施形態に係るオムツを示し、図３３のＢ２－Ｂ２線断面図である。FIG. 35 is a cross-sectional view taken along line B2-B2 of FIG. 33, showing a diaper according to Embodiment 3-1 of the present invention. 図３６は、本発明の第３－１実施形態に係るオムツを示し、着用時の図３３のＢ２－Ｂ２線に沿う断面図である。36 is a cross-sectional view taken along line B2-B2 of FIG. 33, showing a diaper according to Embodiment 3-1 of the present invention. 図３７は、延伸装置の要部断面図である。FIG. 37 is a cross-sectional view of a main part of the stretching apparatus. 図３８は、本発明の第３－１実施形態に係るオムツを示し、（ａ）はサイドフラップ部の股下領域の中央を外側に引っ張る前の平面図、（ｂ）は一方のサイドフラップ部の股下領域の中央の端部を外側に引っ張った状態の平面図である。FIG. 38 shows a diaper according to Embodiment 3-1 of the present invention, wherein (a) is a plan view before the center of the crotch region of the side flap portion is pulled outward, and (b) is one side flap portion. It is a top view in the state where the central end of the crotch region was pulled outward. 図３９は、本発明の第３－２実施形態に係るオムツの断面図である。FIG. 39 is a cross-sectional view of a diaper according to Embodiment 3-2 of the present invention. 図４０は、本発明の第３－３実施形態に係るオムツの断面図である。FIG. 40 is a cross-sectional view of a diaper according to Embodiment 3-3 of the present invention. 図４１は、本発明の第３－４実施形態に係るオムツの展開状態の平面図である。FIG. 41 is a plan view of a diaper in a developed state according to the third to fourth embodiments of the present invention. 図４２は、本発明の第３－５実施形態に係るオムツの展開状態の平面図である。FIG. 42 is a plan view of a developed state of a diaper according to Embodiment 3-5 of the present invention. 図４３は、従来例のオムツの平面図である。FIG. 43 is a plan view of a conventional diaper. 図４４は、本発明の第４－１実施形態を示し、オムツの展開状態の平面図である。FIG. 44 is a plan view showing a diaper in a developed state according to the fourth to fourth embodiments of the present invention. 図４５は、本発明の第４－１実施形態を示し、図４４のＡ－Ａ線断面図である。FIG. 45 shows a fourth embodiment of the present invention and is a cross-sectional view taken along line AA of FIG. 図４６は、本発明の第４－１実施形態を示し、図４４のＢ－Ｂ線断面図である。FIG. 46 is a sectional view taken along line BB of FIG. 44, showing the 4-1 embodiment of the present invention. 図４７は、本発明の第４－１実施形態を示し、図４４のＣ－Ｃ線断面図である。FIG. 47 is a cross-sectional view taken along the line CC of FIG. 44, showing the 4-1 embodiment of the present invention. 図４８は、本発明の第４－１実施形態を示し、装着状態を展開して示す平面図である。FIG. 48 is a plan view showing a fourth embodiment of the present invention and showing a mounted state. 図４９は、本発明の第４－１実施形態を示し、延伸装置の断面図である。FIG. 49 is a sectional view of a stretching apparatus according to the 4-1 embodiment of the present invention. 図５０は、本発明の第４－１実施形態を示し、装着状態の側面図である。FIG. 50 is a side view of a mounted state according to the fourth embodiment of the present invention. 図５１は、本発明の第４－２実施形態を示し、（ａ）は着用前の平面図、（ｂ）は着用後の平面図である。FIG. 51 shows a 4-2 embodiment of the present invention, where (a) is a plan view before wearing, and (b) is a plan view after wearing. 図５２は、本発明の第４－３実施形態を示し、（ａ）は着用前の平面図、（ｂ）は着用後の平面図である。FIG. 52 shows a 4-3 embodiment of the present invention, wherein (a) is a plan view before wearing, and (b) is a plan view after wearing. 図５３は、本発明の第４－４実施形態を示し、オムツの展開状態の平面図である。FIG. 53 is a plan view of a diaper in a developed state, showing Embodiment 4-4 of the present invention.
発明を実施するための形態BEST MODE FOR CARRYING OUT THE INVENTION
　次に、本発明の実施形態について説明する。なお、以下の図面の記載において、同一または類似の部分には、同一または類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率などは現実のものとは異なることに留意すべきである。 Next, an embodiment of the present invention will be described. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.
　したがって、具体的な寸法などは以下の説明を参酌して判断すべきものである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれていることは勿論である。 Therefore, specific dimensions should be determined in consideration of the following explanation. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
　（第１－１実施形態）
　図３～図７は、本発明の第１－１実施形態に係るオムツ１Ａを示す。図３は、オムツの展開状態の平面図を示す。図４は、図１のＡ－Ａ線断面図を示す。図５は、図３のＢ－Ｂ線断面図を示す。図６は、着用状態の断面図を示す。図７は、着用状態を展開して示す平面図を示す。 (1-1 embodiment)
3 to 7 show a diaper 1A according to Embodiment 1-1 of the present invention. FIG. 3 shows a plan view of the diaper deployed. 4 shows a cross-sectional view taken along line AA of FIG. FIG. 5 is a sectional view taken along line BB of FIG. FIG. 6 shows a cross-sectional view in a worn state. FIG. 7 is a plan view showing the worn state in a developed state.
　図３に示すように、かかるオムツ１Ａでは、背側Ｂａ及び腹側Ｆｒが決められており、背側Ｂａから腹側Ｆｒに向かう長手方向Ｌに沿って順に背側領域Ｓ１と股下領域Ｓ２と腹側領域Ｓ３とが設けられている。 As shown in FIG. 3, in such a diaper 1A, the back side Ba and the ventral side Fr are determined, and the back side region S1, the crotch region S2, and the abdomen are sequentially arranged along the longitudinal direction L from the back side Ba toward the ventral side Fr. A side region S3 is provided.
　図３～図５に示すように、吸収性物品であるオムツ１Ａは、吸収性本体２と、吸収性本体２の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部１０と、一対の背側ウエストフラップ部２０と、一対の腹側ウエストフラップ部２１とを備えている。 As shown in FIGS. 3 to 5, a diaper 1A as an absorbent article includes an absorbent main body 2, a pair of left and right side flap portions 10 provided on both sides in the width direction W of the absorbent main body 2, and a pair of The back side waist flap part 20 and a pair of ventral side waist flap part 21 are provided.
　具体的には、背側ウエストフラップ部２０は、一対のサイドフラップ部１０の背側Ｂａの幅方向Ｗの両端に設けられる。腹側ウエストフラップ部２１は、一対のサイドフラップ部１０の腹側Ｆｒの幅方向Ｗの両端に設けられる。 Specifically, the back waist flap portions 20 are provided at both ends in the width direction W of the back side Ba of the pair of side flap portions 10. The ventral side waist flap portions 21 are provided at both ends in the width direction W of the ventral side Fr of the pair of side flap portions 10.
　吸収性本体２は、液透過性のトップシート３と、液不透過性のバックシート４と、トップシート３とバックシート４の間に配置され、液体を吸収し保持する吸収体５とから少なくとも構成される。吸収性本体２は、背側Ｂａから腹側Ｆｒまでの長手方向Ｌに沿って、背側領域Ｓ１、股下領域Ｓ２、腹側領域Ｓ３を有する。吸収性本体２は、着用者の背側Ｂａと股下側と腹側Ｆｒを被う。 The absorbent main body 2 includes at least a liquid-permeable top sheet 3, a liquid-impermeable back sheet 4, and an absorber 5 that is disposed between the top sheet 3 and the back sheet 4 and absorbs and holds liquid. Composed. The absorptive main body 2 has a dorsal region S1, a crotch region S2, and a ventral region S3 along a longitudinal direction L from the dorsal side Ba to the ventral side Fr. The absorptive main body 2 covers the wearer's back side Ba, crotch side, and ventral side Fr.
　トップシート３において、幅方向Ｗの両端部は、吸収体５を包み込むように折り込まれている。トップシート３の折り込まれた箇所及び吸収体５は、バックシート４にホットメルト等の糊によって接合されている。トップシート３は、親水性不織布、織物、開口プラスチックフィルム、開口を有する疎水性不織布、又は、坪量が、１０ｇ／ｍ２であるスパンボンド法/メルトブロー法/スパンボンド法で製造された積層不織布（以下、ＳＭＳと記す）等により形成される。 In the top sheet 3, both end portions in the width direction W are folded so as to wrap the absorber 5. The folded portion of the top sheet 3 and the absorbent body 5 are joined to the back sheet 4 by glue such as hot melt. The top sheet 3 is a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, a hydrophobic nonwoven fabric having apertures, or a laminated nonwoven fabric manufactured by a spunbond method / melt blow method / spunbond method having a basis weight of 10 g / m 2. (Hereinafter referred to as SMS) or the like.
　バックシート４は、坪量が、２３．５ｇ／ｍ２である非通気性フィルムにより形成される。バックシート４は、透湿又は非透湿性フィルム、このようなフィルムに不織布を張り合わせたシート等により形成されてもよい。 The back sheet 4 is formed of a non-breathable film having a basis weight of 23.5 g / m 2 . The back sheet 4 may be formed of a moisture permeable or moisture impermeable film, a sheet obtained by laminating a nonwoven fabric to such a film, or the like.
　吸収体５は、液体吸収保持性を有する積層体である。具体的には、吸収体５は、吸収性のパルプ及び高吸収性ポリマーを混合して形成される。 The absorber 5 is a laminate having liquid absorption retention. Specifically, the absorbent body 5 is formed by mixing absorbent pulp and superabsorbent polymer.
　一対のサイドフラップ部１０は、吸収性本体２の幅方向Ｗの両側より延在されたバックシート４と、吸収性本体２の裏面とバックシート４とに重ねられた液不透過性の外装シート１１とから構成されている。バックシート４と外装シート１１とは、ホットメルト等の糊で接合されている。外装シート１１は、バックシート４よりも幅方向Ｗの寸法が長く形成されている。 The pair of side flap portions 10 includes a back sheet 4 extending from both sides in the width direction W of the absorbent main body 2, and a liquid-impermeable exterior sheet superimposed on the back surface of the absorbent main body 2 and the back sheet 4. 11. The back sheet 4 and the exterior sheet 11 are joined with paste such as hot melt. The exterior sheet 11 is formed to have a longer dimension in the width direction W than the back sheet 4.
　各サイドフラップ部１０の股下領域Ｓ２と、股下領域Ｓ２を中心にして、背側領域Ｓ１及び腹側領域Ｓ３の一部の範囲とには、長手方向Ｌに伸長状態で４列の弾性部材１２ａ～１２ｄが設けられている。 Four rows of elastic members 12a extending in the longitudinal direction L are formed in the crotch region S2 of each side flap portion 10 and a partial range of the dorsal region S1 and the ventral region S3 around the crotch region S2. To 12d are provided.
　外側３列の弾性部材１２ａ～１２ｃは、バックシート４より幅方向Ｗに長く形成された外装シート１１の両側部に設けられている。最も内側に位置する弾性部材１２ｄは、吸収性本体２の側縁と、最も外側に位置する弾性部材１２ａとのほぼ中心に配置される。弾性部材１２ｄは、外装シート１１とバックシート４との間に設けられている。各弾性部材１２ａ～１２ｄは、例えばポリウレタン系弾性糸である。 The outer three rows of elastic members 12 a to 12 c are provided on both sides of the exterior sheet 11 formed longer in the width direction W than the back sheet 4. The innermost elastic member 12d is disposed approximately at the center between the side edge of the absorbent main body 2 and the outermost elastic member 12a. The elastic member 12 d is provided between the exterior sheet 11 and the back sheet 4. Each of the elastic members 12a to 12d is, for example, a polyurethane elastic yarn.
　各サイドフラップ部１０の腹側領域Ｓ３で、且つ、吸収性本体２と最も外側に位置する弾性部材１２ａとの間には、胴回り方向（幅方向Ｗ）に延伸された腹側延伸領域１５が設けられている。具体的には、各腹側延伸領域１５は、吸収性本体２の側縁から、サイドフラップ部１０に設けられた外側３列の弾性部材１２ａ～１２ｃにおいて、最も吸収性本体２側に配置された弾性部材１２ｃの内側近傍との間に設けられている。 In the ventral region S3 of each side flap 10 and between the absorbent main body 2 and the outermost elastic member 12a, a ventral stretch region 15 stretched in the waistline direction (width direction W) is provided. Is provided. Specifically, each of the ventral-side stretched regions 15 is disposed on the most absorbent main body 2 side in the outer three rows of elastic members 12a to 12c provided on the side flap portion 10 from the side edge of the absorbent main body 2. It is provided between the inner side of the elastic member 12c.
　各腹側延伸領域１５は、延伸加工によって他の領域より低坪量化された領域である。各腹側延伸領域１５は、サイドフラップ部１０の幅方向Ｗに沿って延伸量が小さい密部（符号を付さず）と延伸量が大きい粗部（符号を付さず）とが交互に設けられている。各腹側延伸領域１５は、延伸前と比較した場合に１．５～３．０倍の範囲で延伸されている。各腹側延伸領域１５の延伸量が、１．５倍未満であると、垂直方向において、サイドフラップ部１０の立ち上がり寸法が小さくて弾性部材１２ａ、１２ｂ、１２ｃが肌に密着しない恐れがある。又、各腹側延伸領域１５の延伸量が３．０倍を越すと、延伸によるダメージが大きくて破れや穴あき等の資材破損が発生する恐れがある。各腹側延伸領域１５の延伸量を１．５～３．０倍の範囲にすれば、吸収性本体２と肌との間に空間、いわゆるポケットを資材破損の恐れもなく形成できる。 Each ventral stretch region 15 is a region having a lower basis weight than other regions by stretching. Each ventral region 15 has a dense portion (not labeled) with a small stretch amount and a rough portion (not labeled) with a large stretch amount alternately along the width direction W of the side flap portion 10. Is provided. Each ventral stretch region 15 is stretched in a range of 1.5 to 3.0 times as compared with that before stretching. If the stretch amount of each ventral stretch region 15 is less than 1.5 times, the rising dimension of the side flap portion 10 is small in the vertical direction, and the elastic members 12a, 12b, and 12c may not adhere to the skin. In addition, if the stretch amount of each ventral stretch region 15 exceeds 3.0 times, damage due to stretching is large and material damage such as tearing or perforation may occur. If the stretch amount of each ventral stretch region 15 is in the range of 1.5 to 3.0 times, a space, so-called pocket, can be formed between the absorbent main body 2 and the skin without fear of material damage.
　各腹側延伸領域１５は、装着時に外部から内部の排泄物が視認できる透明度を有する。つまり、各腹側延伸領域１５の透過率は、外部から内部が透過できる透過率である。光の透過率は、延伸加工によって３％以上上昇し、光の透過率が６１％以上（ＪＩＳ規格のＫ７１０５に準じて測定）であれば、外部から内部の排泄物を視認できる。 Each ventral stretch region 15 has transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each ventral stretched region 15 is a transmittance that allows the inside to pass from the outside. The light transmittance rises by 3% or more due to stretching, and if the light transmittance is 61% or more (measured according to JIS standard K7105), the internal excrement can be visually recognized from the outside.
　又、この実施形態の各腹側延伸領域１５は、吸収性本体２と最も外側に位置する弾性部材１２ａとの間のほぼ全領域に亘ってサイドフラップ部１０の幅方向Ｗに設けられている。各腹側延伸領域１５は、腹側領域Ｓ３の端縁に達するように腹側領域Ｓ３の全範囲に亘ってサイドフラップ部１０の長手方向Ｌに設けられている。各腹側延伸領域１５は、この実施形態では股下領域Ｓ２や背側領域Ｓ１にまで延在されていない。腹側延伸領域１５の具体的な作製方法については、下記に詳述する。 In addition, each ventral stretch region 15 of this embodiment is provided in the width direction W of the side flap portion 10 over almost the entire region between the absorbent main body 2 and the outermost elastic member 12a. . Each ventral extension region 15 is provided in the longitudinal direction L of the side flap portion 10 over the entire range of the ventral region S3 so as to reach the edge of the ventral region S3. In this embodiment, each abdominal stretch region 15 does not extend to the crotch region S2 or the back region S1. A specific method for producing the ventral stretch region 15 will be described in detail below.
　ウエストフラップ部は、一対の背側ウエストフラップ部２０と一対の腹側ウエストフラップ部２１とから構成されている。一対の背側ウエストフラップ部２０は、一対のサイドフラップ部１０の背側領域Ｓ１に一端側が固定されている。各背側ウエストフラップ部２０の先端側には、係止部２２が設けられている。 The waist flap portion is composed of a pair of back side waist flap portions 20 and a pair of ventral side waist flap portions 21. One end of the pair of back-side waist flap portions 20 is fixed to the back-side region S <b> 1 of the pair of side flap portions 10. A locking portion 22 is provided on the distal end side of each back waist flap portion 20.
　各係止部２２は、機械的な係止力で係止する面ファスナーや、粘着力によって係止する粘着テープである。係止部２２を面ファスナーとする場合には、腹側ウエストフラップ部２１の素材は少なくとも表面が不織布であるシート素材とされる。 Each locking portion 22 is a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force. When the latching portion 22 is a hook-and-loop fastener, the material of the abdominal side waist flap portion 21 is a sheet material whose surface is at least a nonwoven fabric.
　次に、図８を用いて、腹側延伸領域１５の作製方法を簡単に説明する。図８は、延伸装置の断面図である。 Next, a method for producing the ventral stretch region 15 will be briefly described with reference to FIG. FIG. 8 is a cross-sectional view of the stretching apparatus.
　サイドフラップ部１０は、スパイラルスプレーを用いて、感熱性接着剤（例えば、ホットメルト等。以下、ＨＭＡと記す。）を径１５ｍｍの大きさで、坪量が５ｇ／ｍ２になるように塗布して、バックシート４と、外装シート１１とを、張り合わせたものである。 The side flap portion 10 is coated using a spiral spray so that a heat-sensitive adhesive (for example, hot melt, etc., hereinafter referred to as HMA) is 15 mm in diameter and has a basis weight of 5 g / m 2. The back sheet 4 and the exterior sheet 11 are bonded together.
　なお、バックシート４は、坪量が、２３．５ｇ／ｍ２の非通気性フィルムである。外装シート１１は、坪量が、１３ｇ／ｍ２のＳＭＳである。 The back sheet 4 is a non-breathable film having a basis weight of 23.5 g / m 2 . The exterior sheet 11 is an SMS having a basis weight of 13 g / m 2 .
　腹側延伸領域１５を形成する延伸装置３０は、図８に示すように、互いに対向し、且つ、噛み合い可能な一対の延伸刃列部３１を有する。各延伸刃列部３１は、刃の深さを２．５ｍｍ、一対の刃のピッチ間を１．２５ｍｍ、刃数を１７本に設定される。延伸装置３０は、延伸刃列部３１の設定温度を１００℃として延伸加工を施す。このようにして延伸することによって、腹側延伸領域１５は、延伸前と比較した場合に１．８倍に延伸できる。 As shown in FIG. 8, the stretching device 30 that forms the ventral-side stretched region 15 has a pair of stretched blade rows 31 that face each other and can be engaged with each other. Each stretched blade row portion 31 has a blade depth of 2.5 mm, a pitch between a pair of blades of 1.25 mm, and a number of blades of 17. The stretching device 30 performs a stretching process at a set temperature of the stretching blade row portion 31 of 100 ° C. By stretching in this manner, the ventral-side stretched region 15 can be stretched 1.8 times when compared to before stretching.
　延伸装置３０で延伸することによって、腹側延伸領域１５には延伸量が小さい密部と延伸量が大きい粗部とがサイドフラップ部１０の幅方向Ｗ（胴回り方向）に沿って、交互に設けられる。 By stretching with the stretching device 30, a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided in the ventral stretch region 15 along the width direction W (the waistline direction) of the side flap portion 10. It is done.
　延伸加工される腹側延伸領域１５の幅は、サイドフラップ部１０に弾性部材を配置した場合、幅Ｗ１（図４、７）に対して、幅Ｗ２（図６，図７）が、１．５倍～３．０倍の範囲にあることが好ましい。 When the elastic member is disposed on the side flap portion 10, the width W2 (FIGS. 6 and 7) is 1. It is preferably in the range of 5 to 3.0 times.
　なお、幅Ｗ１は、幅方向Ｗに伸長した時のサイドフラップ部１０の幅が最も狭い部位における吸収性本体２の側縁から、サイドフラップ部１０に設けられた外側３列の弾性部材１２ａ～１２ｃにおいて、最も吸収性本体２側に配置された弾性部材１２ｃの内側近傍までの幅である。つまり、幅Ｗ１は、延伸加工前の基準となるサイドフラップ部１０の幅である。 The width W1 extends from the side edge of the absorbent main body 2 at the portion where the width of the side flap portion 10 is the narrowest when extended in the width direction W to the outer three rows of elastic members 12a to 12 provided on the side flap portion 10. In 12c, it is the width | variety to the inner side vicinity of the elastic member 12c arrange | positioned most at the absorptive main body 2 side. That is, the width W1 is the width of the side flap portion 10 serving as a reference before stretching.
　また、幅Ｗ２は、幅方向Ｗに伸長した時のサイドフラップ部１０の幅が最も広い部位における吸収性本体２の側縁から上記弾性部材１２ｃ側の内側近傍までの幅である。 Further, the width W2 is a width from the side edge of the absorbent main body 2 to the vicinity of the inner side on the elastic member 12c side in a portion where the width of the side flap portion 10 is the widest when it is extended in the width direction W.
　なお、本実施形態のように、サイドフラップ部１０の幅が最も広い部位において、サイドフラップ部１０に弾性部材１２ｃが、設けられていない場合は、長手方向Ｌに伸びる弾性部材１２ｃの延長線を想定して、上記幅Ｗ２を求める。つまり、幅Ｗ２は、延伸加工後の基準となるサイドフラップ部１０の幅である。 In addition, in the part where the width of the side flap part 10 is the widest as in this embodiment, when the elastic member 12c is not provided in the side flap part 10, an extension line of the elastic member 12c extending in the longitudinal direction L is provided. Assuming that the width W2 is obtained. That is, the width W2 is the width of the side flap portion 10 serving as a reference after the drawing process.
　幅Ｗ１に対して、幅Ｗ２が、１．５倍未満の場合は、延伸加工によって、低坪量化された腹側延伸領域１５の延伸量が短いため、吸収性本体２の側部からサイドフラップ部１０の弾性部材配置部分までの距離が短くなり、吸収体５から漏れ出した尿の収容空間が狭くなる。このため排泄物は、サイドフラップ部１０の弾性部材配置部分を乗り越えて、オムツ１Ａから漏れ出てしまう。 When the width W2 is less than 1.5 times the width W1, the stretch amount of the ventral stretch region 15 that has been reduced in basis weight by stretching is short, so the side flaps from the side of the absorbent body 2 The distance to the elastic member arrangement part of the part 10 becomes short, and the accommodation space for urine leaking from the absorber 5 becomes narrow. For this reason, excrement passes over the elastic member arrangement | positioning part of the side flap part 10, and will leak from diaper 1A.
　幅Ｗ１に対して、幅Ｗ２が、３．０倍を超える場合は、延伸加工による低坪量化された腹側延伸領域１５の延伸量が長いため、資材は、延伸によるダメージを受けやすく、破れや穴開き等の資材破損が発生する可能性が高い。その結果、資材が破損した場合には、尿が破損部から漏れ出てしまう。 When the width W2 exceeds 3.0 times the width W1, the stretched amount of the ventral stretched region 15 that has been reduced in basis weight by stretching is long, so the material is easily damaged and stretched. There is a high possibility of material damage such as drilling and holes. As a result, when the material is damaged, urine leaks from the damaged part.
　サイドフラップ部１０に弾性部材１２ａ～１２ｄを配置しない場合も上記と同様に、サイドフラップ部１０を幅方向Ｗに伸長した時の吸収性本体２の側縁からサイドフラップ部１０の外側縁の幅を基準として、最も広い幅が最も狭い幅の１．５倍～３．０倍であることが上記と同じ理由により好ましい。 Even when the elastic members 12a to 12d are not arranged on the side flap portion 10, the width of the outer edge of the side flap portion 10 from the side edge of the absorbent main body 2 when the side flap portion 10 is extended in the width direction W is the same as described above. Is preferably 1.5 times to 3.0 times the narrowest width for the same reason as above.
　上記構成のオムツ１Ａを着用者が着用すると、各サイドフラップ部１０の外周が、各弾性部材１２ａ～１２ｄの収縮によって着用者の足回りに密着する。又、図７に示すように、腹側延伸領域１５が形成された腹側領域Ｓ３は、延伸加工で延伸、低坪量化された距離分だけ着用時に幅方向Ｗに広がる。 When the wearer wears the diaper 1A having the above-described configuration, the outer periphery of each side flap portion 10 comes into close contact with the wearer's legs due to the contraction of the elastic members 12a to 12d. Further, as shown in FIG. 7, the ventral region S3 in which the ventral stretch region 15 is formed spreads in the width direction W when worn by a distance that is stretched and reduced in basis weight.
　一方、背側領域Ｓ１には延伸加工が施されていないため、背側領域Ｓ１を着用時に幅方向Ｗに伸ばしても、背側領域Ｓ１は、もともとの幅以上に広がることはない。 On the other hand, since the back side region S1 is not stretched, the back side region S1 does not expand beyond the original width even if the back side region S1 is stretched in the width direction W when worn.
　そのため、着用時には背側領域Ｓ１よりも腹側領域Ｓ３の幅が広くなった状態で体に装着される。オムツ１Ａを着用者が着用すると、弾性部材１２ａ～１２ｄ間の距離についても同様に、背側Ｂａよりも腹側Ｆｒの弾性部材１２ａ～１２ｄ間の距離が長くなった状態で体に装着される。 Therefore, when worn, it is worn on the body with the ventral region S3 wider than the dorsal region S1. When the wearer wears the diaper 1A, the distance between the elastic members 12a to 12d is similarly worn on the body with the distance between the elastic members 12a to 12d on the ventral side Fr being longer than the back side Ba. .
　従って、着用時に着用者のそけい部に沿ってオムツ１Ａをフィットさせることができるため、オムツ１Ａは、着用性に優れている。 Therefore, since the diaper 1A can be fitted along the wearer's throat when worn, the diaper 1A is excellent in wearability.
　又、オムツ１Ａには、吸収性本体２及び一対のサイドフラップ部１０の腹側Ｆｒと着用者の間に空間、いわゆるポケットが形成される。オムツ１Ａは、ポケットによって尿を一時的に保持可能であり、尿漏れを極力防止できる。 In the diaper 1A, a space, so-called pocket, is formed between the absorbent main body 2 and the ventral side Fr of the pair of side flap portions 10 and the wearer. The diaper 1A can temporarily hold urine by a pocket and can prevent urine leakage as much as possible.
　そして、腹側延伸領域１５は、一対のサイドフラップ部１０の一部を延伸させて形成される。このため、オムツ１Ａの製造過程において、各サイドフラップ部１０の腹側Ｆｒを他の箇所よりも幅方向Ｗに大きく形成する必要がない。つまり、オムツ１Ａは、製造過程において、腹側Ｆｒの幅方向Ｗの端縁を曲線状に設けなくて良い。 And the ventral | extension side extending | stretching area | region 15 is formed by extending | stretching a part of a pair of side flap part 10. FIG. For this reason, in the manufacturing process of the diaper 1A, it is not necessary to form the ventral side Fr of each side flap part 10 larger in the width direction W than other places. That is, the diaper 1A does not need to provide the edge in the width direction W of the ventral side Fr in a curved shape in the manufacturing process.
　以上より、着用者にフィットさせることができ、吸収性本体２の腹側Ｆｒと着用者の間に空間を形成することができるオムツ１Ａにあって、使用資材の低減化、加工の容易化、オムツ１Ａは、これらに伴う低コスト化等を図ることができる。 From the above, in the diaper 1A that can be fitted to the wearer and can form a space between the abdomen Fr of the absorbent main body 2 and the wearer, reduction of materials used, facilitation of processing, The diaper 1A can achieve the cost reduction accompanying these.
　これに加えて、サイドフラップ部１０に弾性部材１２ａ、１２ｂ、１２ｃを縦直線状に配置して製造できるため、加工工程を簡素化することができる。また、サイドフラップ部１０の腹側延伸領域１５は、延伸加工によって幅方向Ｗに引き伸ばされて形成されており、延伸加工前のサイドフラップ部１０は、略直線状の材料を用いることができる。このため、オムツ１Ａの製造過程では、くり抜きによる資材の無駄を省けるとともに、加工も容易となる。 In addition to this, since the elastic members 12a, 12b, 12c can be arranged in a vertical straight line on the side flap portion 10 for manufacturing, the processing steps can be simplified. Further, the ventral-side stretched region 15 of the side flap portion 10 is formed by being stretched in the width direction W by stretching, and a substantially linear material can be used for the side flap portion 10 before stretching. For this reason, in the manufacturing process of the diaper 1A, waste of materials due to punching can be eliminated and processing can be facilitated.
　また、着用者の股下近くの足回りを覆う各サイドフラップ部１０は、薄く柔らかい腹側延伸領域１５であるため、オムツ１Ａは、装着違和感を低減できる。、また、オムツ１Ａは、着用者のヒップの運動に対する追従性を向上できる。また、腹側延伸領域１５は、吸収性本体２に対して垂直方向に立ち上がり易い利点がある。 Moreover, since each side flap part 10 which covers the circumference | surroundings near a wearer's inseam is the thin soft abdominal-side extending | stretching area | region 15, the diaper 1A can reduce discomfort. Moreover, the diaper 1A can improve the followability to the wearer's hip movement. Further, the ventral-side stretched region 15 has an advantage that it can easily stand up in the vertical direction with respect to the absorbent main body 2.
　この実施形態では、腹側延伸領域１５は、腹側Ｆｒの端縁にまで達しているが、腹側Ｆｒの端縁にまで達しないよう設けても良い。しかし、腹側延伸領域１５は、この実施形態のように腹側Ｆｒの端縁に達するまで設けた方が、着用者へのフィット性の観点で好ましい。 In this embodiment, the ventral stretch region 15 reaches the end edge of the ventral side Fr, but may be provided so as not to reach the end edge of the ventral side Fr. However, it is preferable from the viewpoint of fit to the wearer that the ventral stretched region 15 is provided until reaching the end edge of the ventral Fr as in this embodiment.
　この実施形態において、各腹側延伸領域１５は、吸収性本体２と最も外側に位置する弾性部材１２ａとの間に設けられている。つまり、各腹側延伸領域１５は、吸収性本体２側縁と最も外側に位置する弾性部材１２ａとの間の幅方向Ｗに二等分する中心線より吸収性本体２側の領域に設けられているため、次のような利点もある。一対のサイドフラップ部１０に弾性部材１２ａ～１２ｄを設けたオムツ１Ａであっても、各サイドフラップ部１０に弾性部材を直線状に設けられれば良いため、弾性部材付きオムツについても加工の容易化、これに伴う低コスト化を図ることができる。又、オムツ１Ａを着用した場合には、剛性差のある位置、つまり、吸収性本体２とサイドフラップ部１０の境界位置より曲がり始めるが、この実施形態ではこの箇所が柔軟性のある腹側延伸領域１５とされているため立ち上がり特性が良い。 In this embodiment, each ventral stretch region 15 is provided between the absorbent main body 2 and the elastic member 12a located on the outermost side. That is, each abdominal stretch region 15 is provided in a region closer to the absorbent main body 2 than a center line that is equally divided in the width direction W between the side edge of the absorbent main body 2 and the elastic member 12a located on the outermost side. Therefore, there are the following advantages. Even in a diaper 1A in which elastic members 12a to 12d are provided on a pair of side flap portions 10, it is only necessary to provide elastic members on each side flap portion 10 in a straight line. Therefore, diapers with elastic members can be easily processed. Therefore, the cost can be reduced. In addition, when the diaper 1A is worn, it begins to bend at a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2 and the side flap portion 10, but in this embodiment, this portion is a flexible ventral side stretch. Since it is the region 15, the rising characteristics are good.
　この実施形態では、各腹側延伸領域１５は、装着時に外部から内部の排泄物が視認できる透明度を有するので、腹側延伸領域１５を通してオムツ１Ａの内部の排泄物の有無を外側から確認できる。このため、オムツ１Ａは、交換時期等を容易に判断できる。 In this embodiment, each abdominal stretch region 15 has a transparency that allows the internal excrement to be visually recognized from the outside at the time of wearing, so that the presence or absence of the excrement inside the diaper 1A can be confirmed from the outside through the ventral stretch region 15. For this reason, the diaper 1A can easily determine the replacement time and the like.
　この実施形態では、各腹側延伸領域１５には、サイドフラップ部１０の幅方向Ｗに沿って延伸量が小さい密部と延伸量が大きい粗部とが交互に設けられている。従って、オムツ１Ａの製造過程では、腹側延伸領域１５は、密部と粗部によって交互に折り畳まれて構成されるため、各サイドフラップ部１０の外縁は、突出せずに直線状となる。つまり、オムツ１Ａは、製造過程、製品パッケージング過程等での取り扱い性が向上する。 In this embodiment, each ventral stretch region 15 is provided with a dense portion having a small stretch amount and a rough portion having a large stretch amount alternately along the width direction W of the side flap portion 10. Therefore, in the manufacturing process of the diaper 1A, the ventral stretched region 15 is configured by being alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 10 is linear without protruding. That is, the diaper 1A is improved in handling in the manufacturing process, product packaging process, and the like.
　（第１－２実施形態）
　図９は、本発明の第１－２実施形態に係るオムツ１Ｂの平面図であり、オムツ１Ｂを着用するために幅を広げた状態を示している。 (1-2 embodiment)
FIG. 9 is a plan view of a diaper 1B according to the first to second embodiments of the present invention, showing a state where the width is widened to wear the diaper 1B.
　この実施形態では、腹側延伸領域１５の引き延ばされた際（着用時）の幅が、一律に同じではなく、異なるよう設けられている。 In this embodiment, when the ventral stretch region 15 is stretched (when worn), the widths are not uniformly the same but different.
　図９に示すように、第１－２実施形態に係るオムツ１Bは、腹側延伸領域１５における延伸量が第１－１実施形態と比べて異なっている。具体的には、オムツ１Ｂの幅方向Ｗに引き延ばされた際（着用時）の股下領域側Ｔ２の幅寸法Ｌ１が、オムツ１Ｂの幅方向Ｗに引き延ばされた際の腹側Ｆｒの端縁側Ｔ１における幅寸法Ｌ２より大きくなるよう設けられている。 As shown in FIG. 9, the diaper 1B according to the 1-2 embodiment is different in stretch amount in the ventral stretch region 15 from the 1-1 embodiment. Specifically, the width dimension L1 of the crotch region side T2 when stretched in the width direction W of the diaper 1B (when worn) is the abdominal side Fr when stretched in the width direction W of the diaper 1B. It is provided so as to be larger than the width dimension L2 on the edge side T1.
　このような幅寸法は、股下領域側Ｔ２と腹側Ｆｒの端縁側Ｔ１において、延伸加工する幅寸法自体を異ならせることにより、又は、単位長さ当たりの延伸程度を異ならせることによって作製可能である。 Such a width dimension can be produced by varying the width dimension itself to be stretched on the crotch region side T2 and the end edge side T1 of the ventral side Fr, or by varying the degree of stretching per unit length. .
　他の構成は、前記実施形態と同様であるため、図面に同一符号を付してその説明を省略する。 Other configurations are the same as those in the above-described embodiment, and therefore, the same reference numerals are given to the drawings and description thereof is omitted.
　この実施形態によれば、オムツ１Ｂは、オムツ１Ｂの腹側Ｆｒと着用者の肌との間に大きな空間、いわゆるポケットを形成できるため、オムツ１Ｂは、大きな空間によって多量の尿を一時的に保持可能である。つまり、オムツ１Ｂは、排泄物の漏れをより確実に防止できる。 According to this embodiment, since the diaper 1B can form a large space, so-called pocket, between the abdomen Fr of the diaper 1B and the skin of the wearer, the diaper 1B temporarily generates a large amount of urine in the large space. It can be held. That is, the diaper 1B can more reliably prevent the excrement from leaking.
　（第１－３実施形態）
　図１０は、本発明の第１－３実施形態に係るオムツ１Ｃの断面図である。 (1-3 embodiment)
FIG. 10 is a cross-sectional view of a diaper 1C according to the first to third embodiments of the present invention.
　図１０に示すように、この第１－３実施形態に係るオムツ１Ｃは、前記第１－１実施形態に比べて、吸収性本体２の構成と各サイドフラップ部１０の腹側延伸領域１５の構成が異なる。つまり、吸収性本体２のトップシート３とバックシート４は、オムツ１Ｃの幅方向Ｗの中央箇所のみが接合部６によって接合され、オムツ１Ｃの幅方向Ｗの両端部では接合されていない。そして、各腹側延伸領域１５は、オムツ１Ｃの平面視において、吸収性本体２と重なる領域（接合されていない箇所）まで延在して設けられている。 As shown in FIG. 10, the diaper 1C according to the first to third embodiments has a configuration of the absorbent main body 2 and the ventral region 15 of each side flap portion 10 as compared with the first to first embodiments. The configuration is different. That is, the top sheet 3 and the back sheet 4 of the absorbent main body 2 are joined only at the central portion in the width direction W of the diaper 1C by the joint portion 6 and are not joined at both ends in the width direction W of the diaper 1C. And each abdominal side extending | stretching area | region 15 is extended and provided to the area | region (location | part which is not joined) which overlaps with the absorptive main body 2 in planar view of the diaper 1C.
　他の構成は、前記第１－１実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 Other configurations are the same as those in the first to first embodiments, and therefore, redundant description is omitted and the same components in the drawings are denoted by the same reference numerals for clarification.
　この実施形態では、各腹側延伸領域１５は、吸収性本体２と重なる領域まで延在して設けられているため、腹側延伸領域１５の幅寸法を大きく取ることができる。従って、オムツ１Ｃは、オムツ１Ｃの腹側Ｆｒに形成される空間、いわゆるポケットの深さを深くできる。 In this embodiment, each ventral stretch region 15 is provided to extend to a region that overlaps the absorbent main body 2, so that the width dimension of the ventral stretch region 15 can be increased. Accordingly, the diaper 1 </ b> C can deepen a space formed on the ventral side Fr of the diaper 1 </ b> C, that is, a so-called pocket.
　（第１－４実施形態）
　図１１は本発明の第１－４実施形態に係るオムツ１Ｄの断面図である。 (First to Fourth Embodiments)
FIG. 11 is a sectional view of a diaper 1D according to the first to fourth embodiments of the present invention.
　図１１に示すように、この第１－４実施形態に係るオムツ１Ｄは、前記第１－１実施形態に比べて、各サイドフラップ部１０の構成のみが異なる。各サイドフラップ部１０は、サイドフラップ部１０の幅方向Ｗの外側で内側フラップ部１０ａと外側フラップ部１０ｂの２つに分岐されている。内側フラップ部１０ａには、肌触りの良いシート素材が使用されている。内側フラップ部１０ａ及び外側フラップ部１０ｂの双方の先端部には、伸長状態で弾性部材１２ａ，１２ｂ，１２ｃ，１２ｅがそれぞれ設けられている。つまり、着用時には、足回りに２重にサイドフラップ部１０が密着するため、オムツ１Ｄは、横漏れをより確実に防止できる。オムツ１Ｄは、内側フラップ部１０ａが肌触りの良いシート素材であるため、肌触り性も良い。 As shown in FIG. 11, the diaper 1D according to the first to fourth embodiments is different from the first to first embodiments only in the configuration of each side flap portion 10. Each side flap portion 10 is branched into two, an inner flap portion 10a and an outer flap portion 10b, on the outer side in the width direction W of the side flap portion 10. A sheet material with a good touch is used for the inner flap portion 10a. Elastic members 12a, 12b, 12c, and 12e are provided in an extended state at the distal ends of both the inner flap portion 10a and the outer flap portion 10b. That is, since the side flap part 10 closely_contact | adheres double around a leg at the time of wear, diaper 1D can prevent a side leak more reliably. The diaper 1 </ b> D has good touchability because the inner flap portion 10 a is a sheet material with a good touch.
　他の構成は、前記第１－１実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 Other configurations are the same as those in the first to first embodiments, and therefore, redundant description is omitted and the same components in the drawings are denoted by the same reference numerals for clarification.
　第１－４実施形態では、内側フラップ部１０ａと外側フラップ部１０ｂの双方の先端部に弾性部材１２ａ，１２ｂ，１２ｃ，１２ｅが設けられているが、第１－４実施形態の変形例に係るオムツは、内側フラップ部１０ａの先端部にのみ伸長状態で弾性部材を設けても良い。これによれば、第１－４実施形態の変形例に係るオムツは、いわゆる内倒しの立体ギャザー構成となる。 In the first to fourth embodiments, the elastic members 12a, 12b, 12c, and 12e are provided at the tip portions of both the inner flap portion 10a and the outer flap portion 10b. However, according to the modification of the first to fourth embodiments. The diaper may be provided with an elastic member in an expanded state only at the tip of the inner flap portion 10a. According to this, the diaper according to the modified example of the first to fourth embodiments has a so-called inward-turned three-dimensional gather structure.
　（第１－５実施形態）
　図１２～図１６は、本発明の第１－５実施形態に係るオムツ１Ｅを示す。図１２は、オムツの展開状態の平面図を示す。図１３は、図１２のＣ－Ｃ線断面図を示す。図１４は、図１２のＤ－Ｄ線断面図を示す。図１５は、着用状態の断面図を示す。図１６は、着用状態を展開して示す平面図である。 (1-5 embodiment)
12 to 16 show a diaper 1E according to the first to fifth embodiments of the present invention. FIG. 12 shows a plan view of the diaper deployed. FIG. 13 is a sectional view taken along the line CC of FIG. FIG. 14 is a sectional view taken along line DD of FIG. FIG. 15 shows a cross-sectional view of the wearing state. FIG. 16 is a plan view showing a worn state in an expanded state.
　上述した実施形態では、サイドフラップ部の腹側領域Ｓ３に、腹側延伸領域１５が設けられている。後述する第１－５～第１－９実施形態では、サイドフラップ部の背側領域Ｓ１に、背側延伸領域１４が設けられている。 In the above-described embodiment, the ventral region 15 is provided in the ventral region S3 of the side flap portion. In the first to fifth to first to ninth embodiments to be described later, the dorsal extending region 14 is provided in the dorsal region S1 of the side flap portion.
　他の構成は、前記実施形態と同様であるため、図面に同一符号を付してその説明を省略する。 Other configurations are the same as those in the above-described embodiment, and therefore, the same reference numerals are given to the drawings and description thereof is omitted.
　図１２～図１４に示すように、各サイドフラップ部１０の背側領域Ｓ１で、且つ、吸収性本体２と最も外側に位置する弾性部材１２ａとの間には、胴回り方向（幅方向Ｗ）に延伸された背側延伸領域１４が設けられている。具体的には、各背側延伸領域１４は、吸収性本体２の側縁から、サイドフラップ部１０に設けられた外側３列の弾性部材１２ａ～１２ｃにおいて、最も吸収性本体２側に配置された弾性部材１２ｃの内側近傍との間に設けられている。各背側延伸領域１４は、延伸加工によって背側Ｂａから腹側Ｆｒまでの長手方向Ｌに対して、直交する方向である幅方向Ｗに、延伸されることで、他の領域より低坪量化された領域である。各背側延伸領域１４は、サイドフラップ部１０の幅方向Ｗに沿って延伸量が小さい密部（符号を付さず）と延伸量が大きい粗部（符号を付さず）とが交互に設けられている。各背側延伸領域１４は、延伸前と比較した場合に１．５～３．０倍の範囲で延伸されている。各背側延伸領域１４の延伸量が１．５倍未満であると、垂直方向において、サイドフラップ部１０の立ち上がり寸法が小さくて弾性部材１２ａ、１２ｂ、１２ｃが肌に密着しない恐れがある。又、各背側延伸領域１４の延伸量が３．０倍を越すと、延伸によるダメージが大きくて破れや穴あき等の資材破損が発生する恐れがある。各背側延伸領域１４の延伸量を１．５～３．０倍の範囲にすれば、空間、いわゆるポケットを資材破損の恐れもなく確実にオムツ１Ｅを形成できる。 As shown in FIG. 12 to FIG. 14, in the back region S1 of each side flap portion 10 and between the absorbent main body 2 and the outermost elastic member 12a, the waistline direction (width direction W) A dorsal stretch region 14 is provided. Specifically, each of the dorsal stretch regions 14 is arranged on the most absorbent main body 2 side in the outer three rows of elastic members 12a to 12c provided on the side flap portion 10 from the side edge of the absorbent main body 2. It is provided between the inner side of the elastic member 12c. Each of the dorsal stretch regions 14 is stretched in the width direction W, which is a direction orthogonal to the longitudinal direction L from the dorsal side Ba to the ventral side Fr by stretching, thereby lowering the basis weight than other regions. This is the area that has been Each back-side stretch region 14 has alternating dense portions (not labeled) having a small stretch amount and coarse portions (not having a symbol) having a large stretch amount along the width direction W of the side flap portion 10. Is provided. Each back-side stretched region 14 is stretched in a range of 1.5 to 3.0 times when compared with that before stretching. If the stretching amount of each back-side stretched region 14 is less than 1.5 times, the vertical dimension of the side flap portion 10 is so small that the elastic members 12a, 12b, 12c may not adhere to the skin. In addition, if the stretching amount of each back-side stretching region 14 exceeds 3.0 times, damage due to stretching is large, and material damage such as tearing or perforation may occur. If the stretch amount of each back-side stretch region 14 is in the range of 1.5 to 3.0 times, the diaper 1E can be reliably formed in the space, so-called pocket, without fear of material damage.
　各背側延伸領域１４は、装着時に外部から内部の排泄物が視認できる透明度を有する。つまり、各背側延伸領域１４の透過率は、外部から内部が透過できる透過率である。 Each back-side stretch region 14 has a transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each back-side stretched region 14 is a transmittance that allows the inside to transmit from the outside.
　又、この実施形態の各背側延伸領域１４は、吸収性本体２と最も外側に位置する弾性部材１２ａの間のほぼ全領域に亘ってサイドフラップ部１０の幅方向Ｗに設けられている。各背側延伸領域１４は、背側領域Ｓ１の端縁に達するように背側領域Ｓ１の全範囲に亘ってサイドフラップ部１０の長手方向Ｌに設けられている。各背側延伸領域１４は、この実施形態では股下領域Ｓ２や腹側領域Ｓ３にまで延在されていない。背側延伸領域１４の具体的な作製方法については、上述した実施形態の腹側延伸領域１５の作製方法と同様であるため説明を省略する。 Moreover, each back side extending | stretching area | region 14 of this embodiment is provided in the width direction W of the side flap part 10 over the substantially whole area | region between the elastic main body 2 and the elastic member 12a located in the outermost part. Each dorsal extending region 14 is provided in the longitudinal direction L of the side flap portion 10 over the entire range of the dorsal region S1 so as to reach the edge of the dorsal region S1. In this embodiment, each dorsal stretch region 14 does not extend to the crotch region S2 or the ventral region S3. A specific method for producing the back-side stretched region 14 is the same as the method for producing the ventral-side stretched region 15 of the above-described embodiment, and thus description thereof is omitted.
　延伸加工される背側延伸領域１４の幅は、サイドフラップ部１０に弾性部材を配置した場合、幅Ｗ３（図１３、１６）に対して、幅Ｗ４（図１５、図１６）が、１．５倍～３．０倍の範囲にあることが好ましい。 When the elastic member is arranged on the side flap portion 10, the width W4 (FIGS. 15 and 16) is 1. It is preferably in the range of 5 to 3.0 times.
　なお、幅Ｗ３は、幅方向Ｗに伸長した時のサイドフラップ部１０の幅が最も狭い部位における吸収性本体２の側縁から、サイドフラップ部１０に設けられた外側３列の弾性部材１２ａ～１２ｃにおいて、最も吸収性本体２側に配置された弾性部材１２ｃの内側近傍までの幅である。つまり、幅Ｗ３は、延伸加工前の基準となるサイドフラップ部１０の幅である。 The width W3 is defined by three outer rows of elastic members 12a to 12 provided on the side flap portion 10 from the side edge of the absorbent main body 2 at the portion where the width of the side flap portion 10 is the narrowest when it is extended in the width direction W. In 12c, it is the width | variety to the inner side vicinity of the elastic member 12c arrange | positioned most at the absorptive main body 2 side. That is, the width W3 is the width of the side flap portion 10 that serves as a reference before stretching.
　また、幅Ｗ４は、幅方向Ｗに伸長した時のサイドフラップ部１０の幅が最も広い部位における吸収性本体２の側縁から上記弾性部材１２ｃ側の内側近傍までの幅である。 Further, the width W4 is a width from the side edge of the absorbent main body 2 to the vicinity of the inner side on the elastic member 12c side in a portion where the width of the side flap portion 10 is widest when extended in the width direction W.
　なお、本実施形態のように、サイドフラップ部１０の幅が最も広い部位において、サイドフラップ部１０に弾性部材１２ｃが、設けられていない場合は、長手方向Ｌに伸びる弾性部材１２ｃの延長線を想定して、上記幅Ｗ４を求める。つまり、幅Ｗ４は、延伸加工後の基準となるサイドフラップ部１０の幅である。 In addition, in the part where the width of the side flap part 10 is the widest as in this embodiment, when the elastic member 12c is not provided in the side flap part 10, an extension line of the elastic member 12c extending in the longitudinal direction L is provided. Assuming that the width W4 is obtained. That is, the width W4 is the width of the side flap portion 10 serving as a reference after the drawing process.
　幅Ｗ３に対して、幅Ｗ４が、１．５倍未満の場合は、延伸加工によって、低坪量化された背側延伸領域１４の延伸量が短いため、吸収性本体２の側部からサイドフラップ部１０の弾性部材配置部分までの距離が短くなり、吸収体５から漏れ出した排泄物の収容空間が狭くなる。このため排泄物は、サイドフラップ部１０の弾性部材配置部分を乗り越えて、オムツ１Ｅから漏れ出てしまう。 When the width W4 is less than 1.5 times with respect to the width W3, the stretching amount of the dorsal stretching region 14 that has been reduced in basis weight by stretching is short, so the side flaps from the side of the absorbent body 2 The distance to the elastic member arrangement | positioning part of the part 10 becomes short, and the accommodation space of the excretion which leaked from the absorber 5 becomes narrow. For this reason, excrement will get over the elastic member arrangement part of the side flap part 10, and will leak from the diaper 1E.
　幅Ｗ３に対して、幅Ｗ４が、３．０倍を超える場合は、延伸加工による低坪量化された背側延伸領域１４の延伸量が長いため、資材は、延伸によるダメージを受けやすく、破れや穴開き等の資材破損が発生する可能性が高い。その結果、資材が破損した場合には、排泄物が破損部から漏れ出てしまう。 When the width W4 exceeds 3.0 times the width W3, the stretched amount of the dorsal stretched region 14 that has been reduced in the basis weight by stretching is long, so the material is easily damaged and stretched. There is a high possibility of material damage such as drilling and holes. As a result, when the material is damaged, excrement leaks from the damaged part.
　サイドフラップ部１０に弾性部材１２ａ～１２ｄを配置しない場合も上記と同様に、サイドフラップ部１０を幅方向Ｗに伸長した時の吸収性本体２の側縁からサイドフラップ部１０の外側縁の幅を基準として、最も広い幅が最も狭い幅の１．５倍～３．０倍であることが上記と同じ理由により好ましい。 Even when the elastic members 12a to 12d are not arranged on the side flap portion 10, the width of the outer edge of the side flap portion 10 from the side edge of the absorbent main body 2 when the side flap portion 10 is extended in the width direction W is the same as described above. Is preferably 1.5 times to 3.0 times the narrowest width for the same reason as above.
　このような関係とすることにより、吸収性本体２及び一対のサイドフラップ部１０の背側Ｂａでヒップを包み込んだ状態で着用者と吸収性本体２との間に大きな空間が形成されるため、オムツ１Ｅは、排出された多量の排泄物をこの大きな空間によって一時的に保持可能である。つまり、オムツ１Ｅは、排泄物の漏れをさらに確実に防止できる。 By making such a relationship, a large space is formed between the wearer and the absorbent main body 2 in a state of wrapping the hips at the back side Ba of the absorbent main body 2 and the pair of side flap portions 10. The diaper 1E can temporarily hold a large amount of discharged excrement by this large space. That is, the diaper 1E can more reliably prevent the excrement from leaking.
　なお、延伸加工に適した外装シートの材料としては、フィルム破断伸度が７５０％以上のものが好ましい。フィルム破断伸度が７５０％未満のものでは、延伸加工される際にピンホールが発生し易く、ピンホール発生により排泄物漏れの原因となる可能性が高い。 In addition, as a material for an exterior sheet suitable for stretching, a material having a film breaking elongation of 750% or more is preferable. When the film elongation at break is less than 750%, pinholes are likely to occur during stretching, and the possibility of causing excrement leakage due to the occurrence of pinholes is high.
　背側延伸領域１４における透過率は、サイドフラップ部１０のシート素材の種類によって異なるため、シート素材の種類によって延伸量を調整し、外部から内部が透過する透過率を得る。 Since the transmittance in the dorsal-side stretched region 14 varies depending on the type of sheet material of the side flap portion 10, the amount of stretching is adjusted depending on the type of sheet material to obtain a transmittance that allows the inside to permeate from the outside.
　上記構成のオムツ１Ｅを着用者が着用すると、各サイドフラップ部１０の外周が各弾性部材１２ａ～１２ｄの収縮によって着用者の足回りに密着する。又、図１６に示すように、背側延伸領域１４が形成された背側領域Ｓ１では、延伸加工で延伸、低坪量化された距離分だけ着用時に幅方向Ｗに広がる。 When the wearer wears the diaper 1E having the above configuration, the outer periphery of each side flap portion 10 is brought into close contact with the wearer's legs due to the contraction of the elastic members 12a to 12d. Further, as shown in FIG. 16, in the back side region S1 in which the back side stretched region 14 is formed, it spreads in the width direction W when worn by a distance that has been stretched and reduced in basis weight.
　一方、腹側領域Ｓ３には延伸加工が施されていないため、着用時に腹側領域Ｓ３を幅方向Ｗに伸ばしても、腹側領域Ｓ３は、もともとの幅以上に広がることはない。 On the other hand, since the stretching process is not performed on the ventral region S3, even if the ventral region S3 is extended in the width direction W during wearing, the ventral region S3 does not expand beyond the original width.
　そのため、オムツ１Ｅを着用者が着用すると、腹側領域Ｓ３よりも背側領域Ｓ１の幅が広くなった状態で体に装着される。オムツ１Ｅを着用者が着用すると、一対の弾性部材１２ａ～１２ｄの間の距離についても同様に、腹側Ｆｒよりも背側Ｂａの弾性部材１２ａ～１２ｄ間の距離が長くなった状態で体に装着される。 Therefore, when the wearer wears the diaper 1E, the diaper 1E is worn on the body in a state where the width of the dorsal region S1 is wider than the ventral region S3. When the wearer wears the diaper 1E, the distance between the pair of elastic members 12a to 12d is also similar to the body with the distance between the elastic members 12a to 12d on the dorsal side Ba being longer than the ventral side Fr. Installed.
　従って、背側Ｂａで着用者のヒップを包み込むようにフィットさせることができるため、オムツ１Ｅは、着用性に優れている。 Therefore, the diaper 1E is excellent in wearability because it can be fitted so as to wrap the hips of the wearer with the back side Ba.
　また、オムツ１Ｅは、ヒップを包み込んだ状態で着用者とオムツ１Ｅとの間に空間的余裕を形成するため、軟便が排泄された場合でも軟便を一時的に保持できる。つまり、オムツ１Ｅは、吸収体から漏れた軟便がすぐに足周りの弾性部材１２ａ～１２ｄを越えて漏れることを防止することができる。 Moreover, since the diaper 1E forms a spatial margin between the wearer and the diaper 1E in a state of wrapping the hip, the stool can be temporarily held even when the loose stool is excreted. That is, the diaper 1E can prevent the loose stool leaked from the absorber from leaking immediately beyond the elastic members 12a to 12d around the legs.
　背側延伸領域１４は、延伸加工によって幅方向Ｗに延伸されて形成されるため、延伸加工前のサイドフラップ部１０として略直線状の材料を用いることができる。このため、オムツ１Ｅの製造過程では、くり抜きによる資材の無駄を省けるとともに、加工も容易となる。 Since the back-side stretched region 14 is formed by stretching in the width direction W by stretching, a substantially linear material can be used as the side flap portion 10 before stretching. For this reason, in the manufacturing process of the diaper 1E, waste of materials due to the hollowing out can be omitted and the processing becomes easy.
　また、着用者の股下近くの足回りを覆う各サイドフラップ部１０は、薄く柔らかい背側延伸領域１４であるため、オムツ１Ｅは、装着違和感を低減できる。また、オムツ１Ｅは、着用者のヒップの運動に対する追従性を向上できる。また、背側延伸領域１４は、吸収性本体２に対して垂直方向に立ち上がり易い、各サイドフラップ部１０の外周を締め付け過ぎないでもヒップにフィットさせることができる等の利点がある。 Moreover, since each side flap part 10 which covers the circumference | surroundings near a wearer's inseam is a thin soft back extending | stretching area | region 14, the diaper 1E can reduce discomfort. Moreover, the diaper 1E can improve the followability with respect to a wearer's hip motion. Further, the dorsal stretch region 14 has an advantage that it can easily stand up in the vertical direction with respect to the absorbent main body 2 and can be fitted to the hip without excessive tightening of the outer periphery of each side flap portion 10.
　この実施形態では、背側延伸領域１４は、背側Ｂａの端縁にまで達しているが、背側Ｂａの端縁にまで達しないよう設けても良い。しかし、背側延伸領域１４は、この実施形態のように背側Ｂａの端縁に達するまで設けた方が、着用者へのフィット性の観点で好ましい。 In this embodiment, the dorsal stretch region 14 reaches the end edge of the dorsal side Ba, but may be provided so as not to reach the end edge of the dorsal side Ba. However, it is preferable from the viewpoint of fit to the wearer that the dorsal stretch region 14 is provided until reaching the end edge of the dorsal side Ba as in this embodiment.
　この実施形態において、各背側延伸領域１４は、吸収性本体２と最も外側に位置する弾性部材１２ａとの間に設けられている。つまり、各背側延伸領域１４は、吸収性本体２側縁と最も外側に位置する弾性部材１２ａとの間の幅方向Ｗに二等分する中心線より吸収性本体２側の領域に設けられているため、次のような利点もある。一対のサイドフラップ部１０に弾性部材１２ａ、１２ｂ、１２ｃを設けたオムツであっても、各サイドフラップ部１０に弾性部材を直線状に設けられば良いため弾性部材付きオムツについても加工の容易化、これに伴う低コスト化を図ることができる。又、オムツ１Ｅを着用した場合には、剛性差のある位置、つまり、吸収性本体２とサイドフラップ部１０の境界位置より曲がり始めるが、この実施形態ではこの箇所が柔軟性のある背側延伸領域１４とされているため立ち上がり特性が良く、ヒップへのフィット性が向上する。 In this embodiment, each dorsal stretch region 14 is provided between the absorbent main body 2 and the elastic member 12a located on the outermost side. In other words, each back-side stretched region 14 is provided in a region on the side of the absorbent main body 2 with respect to the center line that is bisected in the width direction W between the side edge of the absorbent main body 2 and the outermost elastic member 12a. Therefore, there are the following advantages. Even if the diapers are provided with elastic members 12a, 12b, and 12c on a pair of side flap portions 10, it is only necessary to provide elastic members on each side flap portion 10 in a straight line. Therefore, the cost can be reduced. Moreover, when the diaper 1E is worn, it begins to bend from a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2 and the side flap portion 10, but in this embodiment, this portion is a flexible dorsal stretch. Since it is made into the area | region 14, the rise characteristic is good and the fit property to a hip improves.
　この実施形態では、各背側延伸領域１４は、装着時に外部から内部の排泄物が視認できる透明度を有するので、背側延伸領域１４を通してオムツ１Ｅの内部の排泄物の有無を外側から確認できる。このため、オムツ１Ｅは、交換時期等を容易に判断できる。 In this embodiment, since each dorsal stretch region 14 has a transparency that allows the internal excrement to be visually recognized from the outside when worn, the presence or absence of excrement inside the diaper 1E can be confirmed from the outside through the dorsal stretch region 14. For this reason, the diaper 1E can easily determine the replacement time and the like.
　この実施形態では、各背側延伸領域１４には、サイドフラップ部１０の幅方向Ｗに沿って延伸量が小さい密部と延伸量が大きい粗部とが交互に設けられている。従って、オムツ１Ｅの製造過程では、背側延伸領域１４は、密部と粗部によって交互に折り畳まれて構成されるため、各サイドフラップ部１０の外縁は、突出せずに直線状となる。つまり、オムツ１Ｅは、製造過程、製品パッケージング過程等での取り扱い性が向上する。 In this embodiment, each back-side stretch region 14 is alternately provided with a dense portion having a small stretch amount and a rough portion having a large stretch amount along the width direction W of the side flap portion 10. Accordingly, in the manufacturing process of the diaper 1E, the back-side stretched region 14 is configured by being alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 10 is linear without protruding. That is, the diaper 1E has improved handling in the manufacturing process, product packaging process, and the like.
　（第１－６実施形態）
　図１７は本発明の第１－６実施形態に係るオムツ１Ｆの平面図であり、オムツ１Ｆを着用するために幅を広げた状態を示している。 (1-6 embodiment)
FIG. 17 is a plan view of a diaper 1F according to the first to sixth embodiments of the present invention, showing a state in which the width is increased in order to wear the diaper 1F.
　図１７に示すように、第１－６実施形態に係るオムツ１Ｆは、背側延伸領域１４における延伸量が第１－５実施形態と比べて異なっている。具体的には、オムツ１Ｆの幅方向Ｗに引き延ばされた際（着用時）の股下領域側Ｔ４の幅寸法Ｌ３が、オムツ１Ｆの幅方向Ｗに引き延ばされた際の背側Ｂａの端縁側Ｔ３における幅寸法Ｌ４より大きくなるよう設けられている。 As shown in FIG. 17, the diaper 1F according to the first to sixth embodiments is different from the first to fifth embodiments in the stretch amount in the back stretch region 14. Specifically, the back side Ba when the width dimension L3 of the crotch region side T4 when stretched in the width direction W of the diaper 1F (when worn) is stretched in the width direction W of the diaper 1F. It is provided so as to be larger than the width dimension L4 on the edge side T3.
　他の構成は、前記第１－５実施形態と同様であるため、図面に同一符号を付してその説明を省略する。 Since other configurations are the same as those of the first to fifth embodiments, the same reference numerals are given to the drawings, and descriptions thereof are omitted.
　この実施形態によれば、オムツ１Ｆは、着用時にヒップと吸収性本体２との間に大きな空間を形成可能であるため、オムツ１Ｆは、多量の排泄物を一時的に保持可能である。つまり、オムツ１Ｆは、排泄物の漏れをより確実に防止できる。 According to this embodiment, since the diaper 1F can form a large space between the hip and the absorbent main body 2 when worn, the diaper 1F can temporarily hold a large amount of excrement. That is, the diaper 1F can more reliably prevent the excrement from leaking.
　（第１－７実施形態）
　図１８は本発明の第１－７実施形態に係るオムツ１Ｇの展開状態の平面図である。 (1-7 embodiment)
FIG. 18 is a plan view showing a developed state of the diaper 1G according to the first to seventh embodiments of the present invention.
　この実施形態では、一対のサイドフラップ部１０における背側領域Ｓ１に背側延伸領域１４を形成すると共に、腹側領域Ｓ３に腹側延伸領域１５を形成する。このことにより、股下領域Ｓ２よりも背側領域Ｓ１及び腹側領域Ｓ３の幅が広がるため、オムツ１Ｇは、背側Ｂａ及び腹側Ｆｒの双方に空間を形成することができる。これにより、オムツ１Ｇでは、吸収性本体２及び一対のサイドフラップ部１０の腹側Ｆｒにおいても股間部を包み込んだ状態で着用者と吸収性本体２との間に空間が形成される。このため、オムツ１Ｇは、排出された多量の排泄物を背側Ｂａ及び腹側Ｆｒの双方の空間に一時的に保持が可能であり、排泄物の漏れを極力防止することができる。 In this embodiment, the dorsal stretch region 14 is formed in the dorsal region S1 of the pair of side flap portions 10, and the ventral stretch region 15 is formed in the ventral region S3. Accordingly, since the width of the back region S1 and the ventral region S3 is wider than the crotch region S2, the diaper 1G can form a space on both the back side Ba and the ventral side Fr. Thereby, in the diaper 1G, a space is formed between the wearer and the absorbent main body 2 in a state of wrapping the crotch portion even in the abdominal side Fr of the absorbent main body 2 and the pair of side flap portions 10. For this reason, the diaper 1G can temporarily hold a large amount of discharged excrement in both the back side Ba and the ventral side Fr, and can prevent leakage of the excrement as much as possible.
　なお、腹側延伸領域１５においても、第１－６実施形態と同様に、股下側領域と背側領域との間で延伸量を異ならせることができる。これにより、着用性に優れたオムツとすることができる。 In the ventral stretch region 15 as well, the stretch amount can be varied between the crotch region and the dorsal region, as in the first to sixth embodiments. Thereby, it can be set as the diaper excellent in wearability.
　（第１－８実施形態）
　図１９は本発明の第１－８実施形態に係るオムツ１Ｈの断面図である。 (1-8 embodiment)
FIG. 19 is a sectional view of a diaper 1H according to the first to eighth embodiments of the present invention.
　図１９に示すように、第１－８実施形態に係るオムツ１Ｈは、第１－５実施形態に比べて、吸収性本体２の構成と各サイドフラップ部１０の背側延伸領域１４の構成が異なる。つまり、吸収性本体２のトップシート３とバックシート４は、幅方向Ｗの中央箇所のみが接合部６によって接合され、幅方向Ｗの両端部では接合されていない。そして、各背側延伸領域１４は、オムツ１Ｈの平面視において、吸収性本体２と重なる領域（接合されていない箇所）まで延在して設けられている。 As shown in FIG. 19, the diaper 1H according to the first to eighth embodiments is different from the first to fifth embodiments in the configuration of the absorbent main body 2 and the configuration of the dorsal extending region 14 of each side flap portion 10. Different. That is, the top sheet 3 and the back sheet 4 of the absorbent main body 2 are joined only at the center portion in the width direction W by the joint portion 6 and are not joined at both end portions in the width direction W. And each back side extending | stretching area | region 14 is extended and provided in the area | region (location | part which is not joined) which overlaps with the absorptive main body 2 in planar view of the diaper 1H.
　他の構成は、前記第１－５実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 Other configurations are the same as those in the first to fifth embodiments, and therefore, redundant description is omitted and the same components in the drawings are denoted by the same reference numerals for clarification.
　この実施形態では、各背側延伸領域１４は、吸収性本体２と重なる領域まで延在して設けられているため、背側延伸領域１４の幅寸法を大きく取ることができる。従って、オムツ１Ｈは、ヒップを包みこむ寸法やオムツ１Ｈの背側Ｂａに形成される空間、いわゆるポケットを大きくできる。 In this embodiment, each back-side stretch region 14 is provided so as to extend to a region overlapping with the absorbent main body 2, so that the width dimension of the back-side stretch region 14 can be increased. Therefore, the diaper 1H can enlarge the dimension which wraps the hips, and the space formed on the back side Ba of the diaper 1H, so-called pockets.
　（第１－９実施形態）
　図２０は本発明の第１－９実施形態に係るオムツ１Ｉの断面図である。 (1-9 embodiment)
FIG. 20 is a cross-sectional view of a diaper 1I according to Embodiment 1-9 of the present invention.
図２０に示すように、第１－９実施形態に係るオムツ１Ｉは、第１－５実施形態に比べて、各サイドフラップ部１０の構成のみが異なる。各サイドフラップ部１０は、サイドフラップ部１０の幅方向Ｗの外側で内側フラップ部１０ａと外側フラップ部１０ｂの２つに分岐されている。内側フラップ部１０ａには、肌触りの良いシート素材が使用されている。内側フラップ部１０ａ及び外側フラップ部１０ｂの双方の先端部には、伸長状態で弾性部材１２ａ，１２ｂ，１２ｃ，１２ｅがそれぞれ設けられている。つまり、着用時には、足回りに２重にサイドフラップ部１０が密着するため、オムツ１Ｉは、横漏れをより確実に防止できる。オムツ１Ｉは、内側フラップ部１０ａが肌触りの良いシート素材であるため、肌触り性も良い。他の構成は、第１－５実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 As shown in FIG. 20, the diaper 1I according to the first to ninth embodiments is different from the first to fifth embodiments only in the configuration of each side flap portion 10. Each side flap portion 10 is branched into two, an inner flap portion 10a and an outer flap portion 10b, on the outer side in the width direction W of the side flap portion 10. A sheet material with a good touch is used for the inner flap portion 10a. Elastic members 12a, 12b, 12c, and 12e are provided in an extended state at the distal ends of both the inner flap portion 10a and the outer flap portion 10b. In other words, since the side flaps 10 are in close contact with each other around the legs when worn, the diaper 1I can more reliably prevent side leakage. The diaper 1 </ b> I has good touch properties because the inner flap portion 10 a is a sheet material having a good touch. Since the other configuration is the same as that of the first to fifth embodiments, the redundant description will be omitted and the same components in the drawings will be denoted by the same reference numerals for clarification.
　（前記各実施形態の変形例等）
　各実施形態の変形例に係るオムツにおいて、股下領域Ｓ２におけるサイドフラップ部１０の吸収性本体２と最も外側に位置する弾性部材１２ａとの間に股下側延伸領域を設けることができる。 (Modifications of the above embodiments)
In the diaper according to the modification of each embodiment, a crotch-side extension region can be provided between the absorbent main body 2 of the side flap portion 10 and the outermost elastic member 12a in the crotch region S2.
　股下側延伸領域は、サイドフラップ部１０における股下領域Ｓ２に対して幅方向Ｗに延伸することにより形成することができる。このように、股下側延伸領域を設けることにより、変形例に係るオムツは、着用される各サイドフラップ部１０の外周が、各弾性部材の収縮によって着用者の足回りに密着する。 The crotch-side stretched region can be formed by stretching in the width direction W with respect to the crotch region S2 in the side flap portion 10. As described above, by providing the crotch-side stretched region, the outer periphery of each side flap portion 10 to be worn is in close contact with the wearer's leg due to the contraction of each elastic member.
　また、各サイドフラップ部１０の股下領域Ｓ２の伸長可能な幅寸法が、股下側延伸領域によって股下領域Ｓ２や腹側領域Ｓ３のサイドフラップ部１０の幅寸法より大きいため、着用者の股下側に空間、いわゆるポケットができる。従って、変形例に係るオムツは、各サイドフラップ部１０に折り返しを設けることなく、又、各サイドフラップ部１０の端縁を曲線状に設けたり、各サイドフラップ部１０の幅方向Ｗの端縁の曲線状に沿って弾性部材を曲線状に設けなくても股下側にポケットを形成することができる。これにより、変形例に係るオムツの製造過程では、使用資材の低減化、加工の容易化、これに伴う低コスト化を図ることができる。 Moreover, since the width dimension which can extend | expand the crotch area S2 of each side flap part 10 is larger than the width dimension of the side flap part 10 of crotch area | region S2 or abdominal area | region S3 by a crotch side extending | stretching area | region, A space, a so-called pocket, is created. Therefore, the diaper according to the modified example does not provide the side flaps 10 with the folds, and also provides the edges of the side flaps 10 in a curved shape, or the edges of the side flaps 10 in the width direction W. A pocket can be formed on the crotch side without providing an elastic member along the curved line. Thereby, in the manufacturing process of the diaper which concerns on a modification, reduction of a use material, the ease of a process, and the cost reduction accompanying this can be achieved.
　本発明においては、バックシート４と外装シート１１に対して腹側延伸領域１５や、背側延伸領域１４を形成しているが、腹側延伸領域１５や、背側延伸領域１４はバックシート４だけを延伸加工して形成しても良い。この場合には、不織布の使用量を低減することが可能となる。 In the present invention, the ventral stretched region 15 and the dorsal stretched region 14 are formed on the backsheet 4 and the exterior sheet 11, but the ventral stretched region 15 and the dorsal stretched region 14 are formed on the backsheet 4. It may be formed by stretching only. In this case, it is possible to reduce the amount of nonwoven fabric used.
　又、腹側延伸領域１５や、背側延伸領域１４としては、トップシート３、バックシート４及び外装シート１１の３枚の資材の接着部分を延伸加工して形成しても良い。この場合には、吸収体５から流出した体液を親水性のトップシート３によって再度、吸収体５へ誘導することが可能となる。 Also, the ventral stretch region 15 and the back stretch region 14 may be formed by stretching the bonded portions of the three materials of the top sheet 3, the back sheet 4, and the exterior sheet 11. In this case, the body fluid that has flowed out of the absorber 5 can be guided again to the absorber 5 by the hydrophilic topsheet 3.
　本発明においては、一対のサイドフラップ部１０の外装シート１１に対し、バックシート４と異なる材質の液不透過性シートを積層し、外装シート１１及びこの液不透過性シートの積層部分に延伸加工を施して腹側延伸領域１５や、背側延伸領域１４を形成しても良い。この場合には、液不透過性シートとして延伸加工に適したシート素材を用い、吸収体５下方のバックシート４として通気性フィルムやピンホール対策のための高目付きフィルム等を用いることができ、部位毎に適した資材を配置することが可能となる。 In the present invention, a liquid-impervious sheet made of a material different from that of the back sheet 4 is laminated on the exterior sheet 11 of the pair of side flap portions 10, and the exterior sheet 11 and a laminated portion of the liquid-impermeable sheet are stretched. To form the ventral stretch region 15 and the back stretch region 14. In this case, a sheet material suitable for stretching can be used as the liquid-impermeable sheet, and a breathable film or a high-weight film for pinhole measures can be used as the back sheet 4 below the absorber 5. It becomes possible to arrange suitable materials for each part.
　各実施形態では、各サイドフラップ部１０に４条の弾性部材１２ａ～１２ｄが設けられているが、サイドフラップ部１０の側端部に１列又は２列だけ設けても良く、弾性部材の本数及び配置位置は適宜変更可能である。 In each embodiment, four elastic members 12a to 12d are provided in each side flap portion 10, but only one or two rows may be provided on the side end portion of the side flap portion 10, and the number of elastic members may be provided. The arrangement position can be changed as appropriate.
　なお、各実施形態では、本発明をオープンタイプのオムツに適用した場合を示したが、パンツタイプのオムツにも同様に適用できる。又、本発明は、オムツ以外の吸収性物品にも適用可能である。 In each embodiment, the case where the present invention is applied to an open type diaper is shown, but the present invention can be applied to a pant type diaper in the same manner. Moreover, this invention is applicable also to absorbent articles other than a diaper.
　なお、日本国特許出願第２００８－０３７９１９号（２００８年２月１９日出願）、日本国特許出願第２００８－０３７９２２号（２００８年２月１９日出願）、日本国特許出願第２００９－０２６２４６号（２００９年２月６日出願）、及び日本国特許出願第２００９－０２６２５５（２００９年２月６日出願）の全内容が、参照により、本願明細書に組み込まれている。 Note that Japanese Patent Application No. 2008-037919 (filed on February 19, 2008), Japanese Patent Application No. 2008-037922 (filed on February 19, 2008), Japanese Patent Application No. 2009-026246 ( The entire contents of Japanese Patent Application No. 2009-026255 (filed on Feb. 6, 2009) and Japanese Patent Application No. 2009-026255 are incorporated herein by reference.
（第２－１実施形態）
［背景技術］
　従来、液透過性の表面シートと、液不透過性の裏面シートと、液体を吸収して保持する吸収体を有する吸収性物品が広く知られている。当該吸収体は、液透過性の表面シートと液不透過性の裏面シートの間に配置されている。このような吸収性物品に関し、特許文献１には、表面シートを液不透過性不織布によって形成すると共に、吸収体と裏面シートとの間にメルトブロー層を設けた構造が開示されている。 (2-1 embodiment)
[Background technology]
DESCRIPTION OF RELATED ART Conventionally, the absorbent article which has a liquid-permeable surface sheet, a liquid-impermeable back surface sheet, and the absorber which absorbs and hold | maintains a liquid is known widely. The absorber is disposed between the liquid-permeable top sheet and the liquid-impermeable back sheet. With respect to such an absorbent article, Patent Document 1 discloses a structure in which a top sheet is formed of a liquid-impermeable nonwoven fabric and a melt blow layer is provided between the absorber and the back sheet.
　特許文献２には、液不透過性の裏面シートに折り返し部を形成し、この折り返し部に液不透過性不織布を接着した構造が開示されている。折り返し部は吸収体の長手方向の両側縁部に沿って表面シート側に向かって形成されている。 Patent Document 2 discloses a structure in which a folded portion is formed on a liquid-impermeable back sheet, and a liquid-impermeable nonwoven fabric is bonded to the folded portion. The folded portion is formed toward the surface sheet side along both side edges in the longitudinal direction of the absorbent body.
　特許文献３には、吸収体の横方向両側縁から同方向外側へ延出するサイドフラップ部を表面シート及び裏面シートとは別体の複合シートによって形成した構造が開示されている。複合シートは、厚さが５μｍ以上、２０μｍ未満の不透水性シートからなる内層と、坪量が、１０～２５ｇ／ｍ２の不織布からなる外層とを接することにより形成されるものである。 Patent Document 3 discloses a structure in which side flap portions that extend outward in the same direction from both lateral edges of the absorber are formed by a composite sheet that is separate from the top sheet and the back sheet. The composite sheet is formed by contacting an inner layer made of an impermeable sheet having a thickness of 5 μm or more and less than 20 μm with an outer layer made of a nonwoven fabric having a basis weight of 10 to 25 g / m 2 .
　　（特許文献１）特開２００１－１０４３７２号公報
　　（特許文献２）特開２００５－２１１１３１号公報
　　（特許文献３）実開平７－２１０２０号公報
［発明の開示］
　しかしながら、特許文献１に記載された吸収性物品において、不織布からなる表面シートでは、防漏機能に限界がある。表面シートによって塞ぎ止めされた体液に対して、装着者の激しい動きに伴う過度な圧力が作用すると、体液が表面シートを透過して、表面シートから横漏れを生じる。特に、軟便のような高粘性で低い表面張力の流体に対しては、不織布からなる表面シートでは滲み、漏れを発生する問題がある。 (Patent Document 1) Japanese Patent Laid-Open No. 2001-104372 (Patent Document 2) Japanese Patent Laid-Open No. 2005-211131 (Patent Document 3) Japanese Utility Model Laid-Open No. 7-21020 [Disclosure of the Invention]
However, in the absorbent article described in Patent Document 1, the surface sheet made of a nonwoven fabric has a limit in the leak-proof function. When excessive pressure accompanying the intense movement of the wearer acts on the body fluid blocked by the top sheet, the body fluid permeates the top sheet and causes side leakage from the top sheet. In particular, for a fluid having a high viscosity and a low surface tension such as soft stool, there is a problem that a surface sheet made of a nonwoven fabric bleeds and leaks.
　特許文献２に記載の吸収性物品において、吸収体下面と同一物性のフィルムを裏面シートに使用した場合、耐水圧を上げ、排泄物の漏れを防ぐことはできる。しかしながら、体圧がかかる吸収体下面には、ピンホールが発生し、排泄物の漏れ出しの危険性が高いため、吸収体下面ではフィルムを厚くしている。このため、体圧がかかり難い他の部分までも不必要に厚くなっている。その結果、吸収体下面は、硬くなってしまい、風合いが悪く、通気性も良くないため、蒸れの原因となっている。 In the absorbent article described in Patent Document 2, when a film having the same physical properties as that of the lower surface of the absorber is used for the back sheet, the water pressure can be increased and leakage of excrement can be prevented. However, since a pinhole is generated on the lower surface of the absorber to which body pressure is applied and there is a high risk of excrement leakage, the film is thickened on the lower surface of the absorber. For this reason, even the other part where it is difficult to apply body pressure is unnecessarily thick. As a result, the lower surface of the absorbent body becomes hard, the texture is poor, and the air permeability is not good, which causes stuffiness.
　特許文献３に記載の吸収性物品においては、吸収体と側部のサイドフラップ部とを貼り合わせるため、資材が重複して無駄となる。又、吸収体と側部で異なる資材を配置する必要性があり、資材点数が増える。このため、吸収性物品を製造するための設備が複雑化する。また、吸収体とサイドフラップ部とが貼り合わせにより接合されているため、接合が外れる可能性がある。従って、外れた場合には、排泄物が吸収性物品から漏れ出る危険性がある。 In the absorbent article described in Patent Document 3, since the absorbent body and the side flap portions of the side portions are bonded together, the material is redundant and wasted. In addition, there is a need to dispose different materials on the absorbent body and the side, and the number of materials increases. For this reason, the installation for manufacturing an absorbent article becomes complicated. Moreover, since an absorber and a side flap part are joined by bonding, joining may remove | deviate. Therefore, when it comes off, there exists a danger that excretion will leak from an absorptive article.
　以上のことから、いずれの従来技術においても、滲みや漏れを防止でき、しかも蒸れを軽減できる吸収性物品とはなっていない。 From the above, none of the conventional techniques is an absorbent article that can prevent bleeding and leakage, and can reduce stuffiness.
　そこで、本発明は、滲みや漏れを防止でき、しかも通気性が良好な吸収性物品を提供することを目的とする。 Therefore, an object of the present invention is to provide an absorbent article that can prevent bleeding and leakage and has good air permeability.
　本発明の特徴は、吸収性物品（例えば、オムツ１００１Ａ）は、液透過性の表面シート（表面シート１００３）と、液不透過性の裏面シート（裏面シート１００４）と、表面シートと裏面シートとの間に配置され、液体を吸収し保持する吸収体（吸収体１００５）とから構成され、着用時には背側から腹側までの長手方向（長手方向Ｌ）に背側領域（背側領域Ｓ１１）、股下領域（股下領域Ｓ１２）、腹側領域（腹側領域Ｓ１３）を有する吸収性本体（吸収性本体１００２）と、吸収性本体の幅方向（幅方向Ｗ）の両側に設けられた左右一対のサイドフラップ部（サイドフラップ部１０１０）とを備えた吸収性物品であって、吸収性本体の下面とサイドフラップ部に位置する裏面シートが連続した一体物で構成され、サイドフラップ部の幅方向端縁と吸収体側縁との間でサイドフラップ部が吸収性本体の下面より透湿性を有する高透湿領域（高透湿領域１００６）を有することを特徴とする。 The feature of the present invention is that an absorbent article (for example, a diaper 1001A) includes a liquid-permeable top sheet (top sheet 1003), a liquid-impermeable back sheet (back sheet 1004), a top sheet and a back sheet. Between the back side and the abdomen when worn (back side region S11) in the longitudinal direction (longitudinal direction L) from the back side to the abdomen. An absorbent main body (absorbent main body 1002) having a crotch region (inseam region S12), a ventral region (ventral region S13), and a pair of left and right provided on both sides in the width direction (width direction W) of the absorbent main body The side flap portion (side flap portion 1010) is an absorbent article, and is composed of a continuous body in which the lower surface of the absorbent main body and the back surface sheet located on the side flap portion are continuous, and the width of the side flap portion Side flaps between Kotan'en the absorption side edge and having a high moisture-permeable regions having moisture permeability lower surface of the absorbent body (KoTorushime region 1006).
　本発明によれば、吸収性本体の下面とサイドフラップ部側の裏面シートとを一体物としているため、吸収性物品は、滲みや漏れを防止することができる。又、サイドフラップ部が高透湿領域となっているため、吸収性物品は、通気度、透湿度が増して蒸れを防ぐことができる。つまり、本発明によれば、滲みや漏れを防止でき、しかも通気性が良好な吸収性物品を提供できる。 According to the present invention, since the lower surface of the absorbent main body and the back sheet on the side flap portion side are integrated, the absorbent article can prevent bleeding and leakage. Moreover, since the side flap part is a highly moisture-permeable area | region, absorptivity and moisture permeability can increase an absorbent article and can prevent stuffiness. That is, according to the present invention, it is possible to provide an absorbent article that can prevent bleeding and leakage and has good air permeability.
[発明を実施するための形態]
　図２１は、本発明の第２－１実施形態のオムツ１００１Ａの断面図である。吸収性物品であるオムツ１００１Ａは、吸収性本体１００２と、吸収性本体１００２の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部１０１０とを備えている。なお、吸収性本体１００２の幅方向Ｗとは、オムツ１００１Ａの平面視において、背側から腹側までの長手方向Ｌに対して、直交する方向である。 [Mode for Carrying Out the Invention]
FIG. 21 is a cross-sectional view of a diaper 1001A according to Embodiment 2-1 of the present invention. A diaper 1001A, which is an absorbent article, includes an absorbent main body 1002 and a pair of left and right side flap portions 1010 provided on both sides of the absorbent main body 1002 in the width direction W. In addition, the width direction W of the absorptive main body 1002 is a direction orthogonal to the longitudinal direction L from the back side to the stomach side in the plan view of the diaper 1001A.
　吸収性本体１００２は、液透過性の表面シート１００３と、液不透過性の裏面シート１００４と、表面シート１００３と裏面シート１００４の間に配置され、液体を吸収し保持する吸収体１００５とから少なくとも構成されている。表面シート１００３において、その幅方向Ｗの両端部は、吸収体１００５を包み込むように折り込まれている。表面シート１００３の折り込まれた箇所及び吸収体１００５は、裏面シート１００４にホットメルト等の糊によって接合されている。 The absorbent main body 1002 includes at least a liquid-permeable top sheet 1003, a liquid-impermeable back sheet 1004, and an absorber 1005 that is disposed between the top sheet 1003 and the back sheet 1004 and absorbs and holds liquid. It is configured. In the surface sheet 1003, both end portions in the width direction W are folded so as to wrap the absorber 1005. The folded portion of the top sheet 1003 and the absorber 1005 are joined to the back sheet 1004 by glue such as hot melt.
　表面シート１００３としては、親水性不織布、織物、開口プラスチックフィルム、開口を有する疎水性不織布等を用いることができる。この実施形態では、坪量が、１０ｇ／ｍ２のＳＭＳ（スパンボンドとメルトブローの複合不織布、以下ＳＭＳと記す）が、表面シート１００３として用いられている。 As the surface sheet 1003, a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, a hydrophobic nonwoven fabric having an aperture, or the like can be used. In this embodiment, SMS having a basis weight of 10 g / m 2 (a composite nonwoven fabric of spunbond and melt blown, hereinafter referred to as SMS) is used as the top sheet 1003.
　吸収体１００５は、液体吸収保持性を有する積層体である。吸収体１００５は、吸収性のパルプ及び高吸収性ポリマーを混合した混合物からなる。 The absorber 1005 is a laminated body having liquid absorption retention. The absorber 1005 is made of a mixture obtained by mixing absorbent pulp and superabsorbent polymer.
　裏面シート１００４は、無機材料を充填材として含む樹脂からなる微多孔質の液不透過性フィルムからなる。具体的には、液不透過性フィルムには、約５０重量％の炭酸カルシウムを充填材として含み、坪量が、２２．０ｇ／ｍ２のポリエチレンからなる微多孔質の透湿性シートが用いられている。充填剤としては炭酸カルシウムの他、硫酸バリウムなどの無機材料を用いることができる。透湿性シートに用いられる樹脂としては、ポリエチレンの他、ポリプロピレン等のオレフィン系熱可塑性樹脂を用いることができる。 The back sheet 1004 is made of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler. Specifically, the liquid-impermeable film is a microporous moisture-permeable sheet made of polyethylene containing about 50% by weight of calcium carbonate as a filler and having a basis weight of 22.0 g / m 2. ing. In addition to calcium carbonate, an inorganic material such as barium sulfate can be used as the filler. As a resin used for the moisture-permeable sheet, an olefin-based thermoplastic resin such as polypropylene can be used in addition to polyethylene.
　吸収性本体１００２の下面とサイドフラップ部１０１０に位置する裏面シート１００４が連続した一体物で構成される。つまり、サイドフラップ部１０１０は、裏面シート１００４を吸収体１００５の下面から左右の両側に伸ばした部分に形成されている。サイドフラップ部１０１０は、吸収体１００５の両側部に位置している。サイドフラップ部１０１０には、吸収性本体１００２の下面よりも透湿性を有する高透湿領域１００６が設けられる。図２１において、高透湿領域１００６は、高い透湿性を備えている。高透湿領域１００６は、吸収性本体１００２の左右両側に設けられている。高透湿領域１００６の透湿度は、吸収性本体１００２の下面側の透湿度に対して１．３～２．５倍以上で、液体が漏れることのないように設定されている。なお、液体が漏れることのないように設定されるとは、液体が漏れることのない範囲内で、高透湿領域１００６の透湿度が設定されていることを示す。 The bottom surface of the absorbent main body 1002 and the back sheet 1004 located on the side flap portion 1010 are constituted by a continuous body. That is, the side flap part 1010 is formed in the part which extended the back surface sheet 1004 from the lower surface of the absorber 1005 to the right and left both sides. The side flap portions 1010 are located on both sides of the absorbent body 1005. The side flap portion 1010 is provided with a highly moisture permeable region 1006 that is more permeable than the lower surface of the absorbent main body 1002. In FIG. 21, the high moisture permeability region 1006 has high moisture permeability. Highly moisture permeable regions 1006 are provided on the left and right sides of the absorbent main body 1002. The moisture permeability of the highly moisture permeable region 1006 is set to be 1.3 to 2.5 times or more than the moisture permeability on the lower surface side of the absorbent main body 1002 so that the liquid does not leak. It should be noted that “setting so that the liquid does not leak” means that the moisture permeability of the high moisture-permeable region 1006 is set within a range where the liquid does not leak.
　高透湿領域１００６は、液不透過性シートからなるサイドフラップ部１０１０を幅方向Ｗに延伸することにより作製される（以下、延伸加工と記す）。延伸加工については後述する第２－２実施形態により詳細に説明する。 The highly moisture-permeable region 1006 is produced by stretching a side flap portion 1010 made of a liquid-impermeable sheet in the width direction W (hereinafter referred to as a stretching process). The stretching process will be described in detail with reference to a second to second embodiment described later.
　サイドフラップ部１０１０の幅方向外側には、液不透過性シートからなる外装シート１０１１が設けられている。外装シート１０１１の側縁部には、弾性部材１０１２が長手方向Ｌに沿って、伸長状態で配置されたギャザー部が設けられている。ギャザー部は、サイドフラップ部１０１０の高透湿領域１００６より透湿性を有している。従って、オムツ１００１Ａにおける透湿度の関係は、「吸収性本体１００２の下面＜高透湿領域１００６＜ギャザー部分」となっている。 An exterior sheet 1011 made of a liquid-impermeable sheet is provided on the outer side in the width direction of the side flap portion 1010. The side edge of the exterior sheet 1011 is provided with a gathered portion in which the elastic member 1012 is arranged along the longitudinal direction L in an extended state. The gather part has moisture permeability from the highly moisture permeable area 1006 of the side flap part 1010. Accordingly, the relationship of moisture permeability in the diaper 1001A is “the lower surface of the absorbent main body 1002 <the highly moisture permeable region 1006 <the gathered portion”.
　このような第２－１実施形態では、吸収体１００５の下面には、液不透過性シートからなる裏面シート１００４があるため、オムツ１００１Ａは、体液等の滲みや漏れを防止できる。 In such a 2-1 embodiment, since the back surface 1004 made of a liquid-impermeable sheet is provided on the lower surface of the absorber 1005, the diaper 1001A can prevent bleeding and leakage of body fluid and the like.
　サイドフラップ部１０１０を幅方向Ｗに延伸することにより、延伸された幅の分だけ液不透過性シート（裏面シート１００４）が伸ばされる。その結果、充填材による微開孔の孔径が大きくなり高透湿化される。高透湿化により通気度、透湿度が増すため、オムツ１００１Ａは、オムツ１００１Ａ内の蒸れを防ぐことができる。さらには、延伸加工により資材が柔軟化されるため、着用者の使用感が向上する。 By stretching the side flap portion 1010 in the width direction W, the liquid-impermeable sheet (back surface sheet 1004) is stretched by the stretched width. As a result, the diameter of the micro-opening hole by the filler is increased and the moisture permeability is increased. Since the air permeability and the moisture permeability increase due to the high moisture permeability, the diaper 1001A can prevent the diaper 1001A from being steamed. Furthermore, since the material is softened by the stretching process, the wearer's feeling of use is improved.
　（第２－２実施形態）
　図２２～図２７は、本発明の第２－２実施形態を示す。図２２は、オムツ１００１Ｂの展開状態の平面図である。図２３は、図２２のＡ１－Ａ１線断面図である。図２４は、図２２のＢ１－Ｂ１線断面図である。図２５及び図２６は、高透湿化の距離を示すオムツ１００１Ｂの平面図である。図２７は、延伸装置の断面図である。 (Second embodiment)
22 to 27 show a 2-2 embodiment of the present invention. FIG. 22 is a plan view of the diaper 1001B in a developed state. 23 is a cross-sectional view taken along line A1-A1 of FIG. 24 is a cross-sectional view taken along line B1-B1 of FIG. 25 and 26 are plan views of the diaper 1001B showing the distance of high moisture permeability. FIG. 27 is a cross-sectional view of the stretching apparatus.
　なお、以下の第２－２実施形態においては、第２－１実施形態と異なる点を主に説明し、重複する説明を省略する。 In the following 2-2 embodiment, differences from the 2-1 embodiment will be mainly described, and a duplicate description will be omitted.
　オムツ１００１Ｂは、第２－１実施形態と同様に、吸収性本体１００２と、吸収性本体１００２の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部１０１０とを備えている。 The diaper 1001B includes an absorbent main body 1002 and a pair of left and right side flap portions 1010 provided on both sides in the width direction W of the absorbent main body 1002, as in the case of the 2-1 embodiment.
　吸収性本体１００２は、液透過性の表面シート１００３と、液不透過性の裏面シート１００４と、液体を吸収し保持する吸収体１００５とから少なくとも構成されている。吸収体１００５は、表面シート１００３と裏面シート１００４との間に配置されている。吸収性本体１００２は、背側から腹側までの長手方向Ｌに沿って、背側領域Ｓ１１、股下領域Ｓ１２、腹側領域Ｓ１３を有している。吸収性本体１００２は、着用者の背側、股下側及び腹側を被う。 The absorbent main body 1002 includes at least a liquid-permeable top sheet 1003, a liquid-impermeable back sheet 1004, and an absorber 1005 that absorbs and holds the liquid. The absorber 1005 is disposed between the top sheet 1003 and the back sheet 1004. The absorptive main body 1002 has a dorsal region S11, a crotch region S12, and a ventral region S13 along the longitudinal direction L from the dorsal side to the ventral side. The absorbent main body 1002 covers the wearer's back side, crotch side, and abdomen side.
　裏面シート１００４は、液不透過性シート１０１３と外装シート１０１１とを接着して形成されている。液不透過性シート１０１３と外装シート１０１１とからなる裏面シート１００４がサイドフラップ部１０１０を形成している。 The back sheet 1004 is formed by adhering a liquid-impermeable sheet 1013 and an exterior sheet 1011. A back sheet 1004 composed of the liquid-impermeable sheet 1013 and the exterior sheet 1011 forms a side flap portion 1010.
　サイドフラップ部１０１０の側縁部に弾性部材１０１２が伸長状態で配置されている。サイドフラップ部１０１０において、外装シート１０１１と液不透過性シート１０１３との重なる部分を幅方向Ｗに延伸加工を施す。サイドフラップ部１０１０において、延伸加工が施された部分は、高透湿化し、高透湿領域１００６となる。 The elastic member 1012 is disposed in an extended state on the side edge of the side flap portion 1010. In the side flap portion 1010, the overlapping portion of the exterior sheet 1011 and the liquid impermeable sheet 1013 is stretched in the width direction W. In the side flap portion 1010, the stretched portion is highly permeable and becomes a highly permeable region 1006.
　表面シート１００３は液透過性のシートである。表面シート１００３としては、親水性不織布、織物、開口プラスチックフィルム等の他、開口を有する疎水性不織布等を用いることができる。この実施形態では、表面シート１００３として、坪量が、１０ｇ／ｍ２のＳＭＳが用いられている。 The top sheet 1003 is a liquid-permeable sheet. As the surface sheet 1003, a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, or the like, or a hydrophobic nonwoven fabric having an aperture can be used. In this embodiment, SMS having a basis weight of 10 g / m 2 is used as the top sheet 1003.
　裏面シート１００４における液不透過性シート１０１３は、無機材料を充填材として含む樹脂からなる微多孔質の液不透過性フィルムからなる。 The liquid-impermeable sheet 1013 in the back sheet 1004 is made of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler.
　具体的には、液不透過性シート１０１３は、透湿の液不透過性フィルムやこの液不透過性フィルムに不織布を貼り合わせたシートを用いることができる。この実施形態において、液不透過性シート１０１３は、約５０重量％の炭酸カルシウムを充填材として含み、坪量が、２２．０ｇ／ｍ２のポリエチレンからなる微多孔質の透湿性シートを用いている。充填剤は、炭酸カルシウム、硫酸バリウムなどの無機材料を用いることができる。液不透過性シート１０１３に用いる樹脂には、ポリエチレンの他、ポリプロピレン等のオレフィン系熱可塑性樹脂がある。 Specifically, the liquid-impermeable sheet 1013 may be a moisture-permeable liquid-impermeable film or a sheet obtained by bonding a nonwoven fabric to this liquid-impermeable film. In this embodiment, the liquid-impermeable sheet 1013 includes a microporous moisture-permeable sheet made of polyethylene containing approximately 50% by weight of calcium carbonate as a filler and having a basis weight of 22.0 g / m 2. Yes. As the filler, an inorganic material such as calcium carbonate or barium sulfate can be used. Resins used for the liquid-impermeable sheet 1013 include polyethylene and olefinic thermoplastic resins such as polypropylene.
　裏面シート１００４における外装シート１０１１は、液不透過性のシートである。この実施形態では、坪量が、１３ｍ／ｍ２のＳＭＳを用いている。外装シート１０１１は、吸収性本体１００２の側方から裏面にかけて配置されている。液不透過性シート１０１３の左右両側縁には弾性部材１０１２が伸長状態で配置されている。液不透過性シート１０１３は吸収体１００５の側部外方まで延出している。液不透過性シート１０１３と外装シート１０１１は、感熱性接着剤（以下、ＨＭＡ）等で接着されている。 The exterior sheet 1011 in the back sheet 1004 is a liquid-impermeable sheet. In this embodiment, an SMS having a basis weight of 13 m / m 2 is used. The exterior sheet 1011 is arranged from the side of the absorbent main body 1002 to the back surface. Elastic members 1012 are arranged in an extended state on both left and right edges of the liquid-impermeable sheet 1013. The liquid-impermeable sheet 1013 extends to the outside of the side portion of the absorber 1005. The liquid-impermeable sheet 1013 and the exterior sheet 1011 are bonded with a heat-sensitive adhesive (hereinafter referred to as HMA) or the like.
　吸収体１００５は、液体吸収保持性の積層体である。吸収体１００５は、吸収性のパルプ及び高吸収性ポリマーを混合した混合物からなる。 The absorbent body 1005 is a liquid absorbent retaining laminate. The absorber 1005 is made of a mixture obtained by mixing absorbent pulp and superabsorbent polymer.
　背側領域Ｓ１１において、サイドフラップ部１０１０の幅方向外側には、ウエストフラップ部１０１４が設けられている。ウエストフラップ部１０１４は液透過性又は液不透過性のシートからなる。ウエストフラップ部１０１４は、吸収性物品１００１Ｂを腹側部で固定できるように、機械係止や粘着テープ等の係止部材１０１５を有している。 In the back region S11, a waist flap portion 1014 is provided outside the side flap portion 1010 in the width direction. The waist flap portion 1014 is made of a liquid permeable or liquid impermeable sheet. The waist flap portion 1014 has a locking member 1015 such as a mechanical lock or an adhesive tape so that the absorbent article 1001B can be fixed on the ventral side.
　この実施形態においては、外装シート１０１１と液不透過性シート１０１３とをＨＭＡ等によって貼り合わせて裏面シート１００４を形成した。その後、外装シート１０１１に弾性部材１０１２としてのポリウレタン系弾性糸４７０ｄｔｅｘ片側２本を倍率２．２倍に伸長した状態で配置し、弾性糸を外装シート１０１１で巻き込む。さらに、サイドフラップ部１０１０の長手方向Ｌ中央領域において外装シート１０１１が液不透過性シート１０１３と重なる部分を幅方向Ｗに延伸加工した。吸収体１００５を延伸加工後の裏面シート１００４に配置した。この加工手順以外の手順であっても良い。 In this embodiment, the exterior sheet 1011 and the liquid-impermeable sheet 1013 are bonded together with HMA or the like to form the back sheet 1004. Thereafter, two polyurethane-based elastic yarns 470 dtex as one side of the elastic member 1012 are arranged on the exterior sheet 1011 in a state of being stretched by 2.2 times, and the elastic yarn is wound around the exterior sheet 1011. Furthermore, the portion where the exterior sheet 1011 overlaps the liquid-impermeable sheet 1013 in the central region in the longitudinal direction L of the side flap portion 1010 was stretched in the width direction W. The absorber 1005 was disposed on the back sheet 1004 after being stretched. Procedures other than this processing procedure may be used.
　次に、サイドフラップ部１０１０に設けた高透湿領域１００６について説明する。図２２，図２３に示すように、高透湿領域１００６は、液不透過性シート１０１３及び外装シート１０１１とからなる裏面シート１００４に形成されている。この高透湿領域１００６は、サイドフラップ部１０１０の幅方向端縁と吸収体１００５の側端との間に設けられる。高透湿領域１００６は、裏面シート１００４を延伸加工することにより形成される。 Next, the highly moisture permeable region 1006 provided in the side flap portion 1010 will be described. As shown in FIGS. 22 and 23, the highly moisture permeable region 1006 is formed on the back sheet 1004 including the liquid impermeable sheet 1013 and the exterior sheet 1011. The highly moisture permeable region 1006 is provided between the width direction edge of the side flap portion 1010 and the side edge of the absorber 1005. The highly moisture permeable region 1006 is formed by stretching the back sheet 1004.
　図２５は延伸加工を行う部位を示す。オムツ１００１Ｂの長手方向Ｌの全長が４７０ｍｍの場合、裏面シート１００４は、吸収体１００５の側部から幅方向外側に５ｍｍ離れた位置を基準としてさらに幅方向外側に２０ｍｍの幅に延伸加工を施す。吸収体１００５の長手方向Ｌに対しては全長にわたって延伸加工を施す。なお、延伸加工を行う部位の長手方向Ｌの長さに関しては、オムツの長さ、吸収体１００５の幅等によって設計が異なるため制約要件とはならない。オープンタイプオムツ又はパンツタイプオムツの場合には、長手方向前後に配置されたサイドフラップ部の間（パンツの場合は前後パネル間）の長さ全長に亘って高透湿領域１００６を設けることが好ましい。 FIG. 25 shows a part to be stretched. When the total length in the longitudinal direction L of the diaper 1001B is 470 mm, the back sheet 1004 is further stretched to a width of 20 mm on the outer side in the width direction on the basis of a position 5 mm away from the side of the absorber 1005 in the outer side in the width direction. The longitudinal direction L of the absorbent body 1005 is stretched over the entire length. Note that the length in the longitudinal direction L of the portion to be stretched is not a constraint because the design differs depending on the length of the diaper, the width of the absorber 1005, and the like. In the case of an open-type diaper or a pants-type diaper, it is preferable to provide a highly moisture-permeable region 1006 over the entire length between side flap portions arranged in the longitudinal direction (between front and rear panels in the case of pants). .
　外装シート１０１１と液不透過性シート１０１３とをＨＭＡ等で接着して裏面シート１００４とした後、図２７に示す延伸装置１０３０を用いて延伸する。 The exterior sheet 1011 and the liquid-impermeable sheet 1013 are bonded with HMA or the like to form the back sheet 1004, and then stretched using a stretching apparatus 1030 shown in FIG.
　図２７に示すように、延伸装置１０３０は、互いに対向し、且つ噛み合い可能な一対の延伸刃列部１０３１を有する。この一対の延伸刃列部１０３１は、刃の深さが２．５ｍｍ、上下の刃のピッチ間が１．２５ｍｍ、上下の刃の本数が１７本である。延伸刃列部１０３１の設定温度を９０℃として延伸加工をサイドフラップ部１０１０の一部に施す。延伸加工を施すことによって、高透湿領域１００６は、延伸前と比較した場合に１．８倍に延伸される。具体的には、高透湿領域１００６は、延伸前の透湿度平均値１９３５（Ｐａ・２４ｈｒｓ）を、延伸後には３１９１（Ｐａ・２４ｈｒｓ）に約１．６５倍に高透湿化される（表１参照）。 As shown in FIG. 27, the stretching device 1030 has a pair of stretching blade rows 1031 that face each other and can be engaged with each other. In this pair of extending blade row portions 1031, the depth of the blade is 2.5 mm, the pitch between the upper and lower blades is 1.25 mm, and the number of upper and lower blades is 17. Stretching is performed on a part of the side flap portion 1010 with the set temperature of the stretching blade row portion 1031 being 90 ° C. By performing the stretching process, the highly moisture permeable region 1006 is stretched 1.8 times as compared with before stretching. Specifically, in the high moisture permeability region 1006, the moisture permeability average value 1935 (Pa · 24 hrs) before stretching is increased by about 1.65 times to 3191 (Pa · 24 hrs) after stretching ( (See Table 1).
　延伸加工時においては、刃を加熱することにより裏面シート１００４が軟化し、低坪量化し易くなるため、ピンホールを発生させ難くなる。適正な加熱温度は、資材融点の２０～３０度以下が好ましい。液不透過性シート１０１３の材料融点を越える温度で加熱すると、液不透過性シート１０１３が溶融し、破れを生じるため好ましくない。 At the time of drawing, the back sheet 1004 is softened by heating the blade, and it is easy to reduce the basis weight, so that it is difficult to generate pinholes. An appropriate heating temperature is preferably 20 to 30 degrees or less of the melting point of the material. Heating at a temperature exceeding the material melting point of the liquid-impermeable sheet 1013 is not preferable because the liquid-impermeable sheet 1013 melts and breaks.
　裏面シート１００４は、スパイラルスプレーを用いて、ＨＭＡを径１５ｍｍの大きさで、坪量が５ｇ／ｍ２になるように塗布して、坪量が、２２．０ｇ／ｍ２の透湿フィルム（液不透過性シート１０１３）と、坪量が、１３ｇ／ｍ２の液透過性のＳＭＳ（外装シート１０１１）とを貼り合わせたものである。表１はこの延伸結果を示す。
Figure JPOXMLDOC01-appb-T000001
 The back sheet 1004 is coated with a moisture permeable film having a diameter of 15 mm and a basis weight of 5 g / m 2 using a spiral spray, and having a basis weight of 22.0 g / m 2. A liquid-impermeable sheet 1013) and a liquid-permeable SMS (exterior sheet 1011) having a basis weight of 13 g / m 2 are bonded together. Table 1 shows the stretching results.
Figure JPOXMLDOC01-appb-T000001
　図２５及び図２６は延伸（高透湿化）する距離を示す。延伸加工されるサイドフラップ部１０１０の幅は、オムツ１００１Ｂを広げた状態で吸収体１００５の側縁からサイドフラップ部１０１０の最も吸収体１００５側に配置された弾性部材１０１２の内側近傍までの幅Ｘとする（図２５）。サイドフラップ部１０１０の股下領域を幅方向Ｗに伸ばした状態における、吸収体１００５の側縁からサイドフラップ部１０１０の最も吸収体１００５側に配置された弾性部材１０１２の内側近傍までの幅Ｙとする（図２６）。幅Ｙは、幅Ｘに対して、１．５倍～３．０倍の範囲にあることが好ましい。 FIG. 25 and FIG. 26 show the distance for stretching (high moisture permeability). The width of the side flap portion 1010 to be stretched is the width X from the side edge of the absorbent body 1005 to the vicinity of the inner side of the elastic member 1012 disposed closest to the absorbent body 1005 of the side flap portion 1010 with the diaper 1001B expanded. (FIG. 25). In a state where the crotch region of the side flap portion 1010 is extended in the width direction W, the width Y is from the side edge of the absorber 1005 to the inner side of the elastic member 1012 disposed closest to the absorber 1005 of the side flap portion 1010. (FIG. 26). The width Y is preferably in the range of 1.5 to 3.0 times the width X.
　幅Ｙが、幅Ｘに対して、１．５倍未満の場合は、高透湿領域１００６の延伸幅が小さいため、オムツの装着時に、サイドフラップ部１０１０が起立しても高さを確保できない。このため、肌と弾性部材１０１２配置部分との間に隙間が発生し、隙間から排泄物が漏れ出る可能性がある。 When the width Y is less than 1.5 times the width X, the stretch width of the highly moisture permeable region 1006 is small, so that the height cannot be secured even when the side flap portion 1010 stands up when the diaper is mounted. . For this reason, a gap is generated between the skin and the elastic member 1012 arrangement portion, and excrement may leak from the gap.
　幅Ｙが、幅Ｘに対して、３．０倍より大きい場合は、高透湿領域１００６の延伸幅が、大きいため、延伸により高透湿化が進む。その結果、資材がダメージを受けやすく、破れや穴開き等の資材破損が発生する可能性が高くなる。資材が破損した場合には、排泄物が破損部から漏れ出る可能性がある。 When the width Y is larger than 3.0 times the width X, the stretch width of the highly moisture permeable region 1006 is large, so that the moisture permeability increases by stretching. As a result, the material is easily damaged, and there is a high possibility that the material will be damaged, such as tearing or opening. If the material is damaged, excrement may leak from the damaged part.
　延伸領域（高透湿領域１００６）における透湿度について、延伸加工前の透湿度に対して、延伸加工後の透湿度は、１．３～２．５倍以上であることが好ましい。この場合、延伸加工前の透湿度とは、言い換えると吸収体の下面側の透湿度という意味でもある。そして、延伸加工の前後での透湿度の差が１．３倍未満の場合、透湿度の変化が少ないため延伸加工前とほとんど変化がなく、オムツ内の蒸れ低減効果が低いものとなる。 Regarding the moisture permeability in the stretching region (high moisture permeability region 1006), the moisture permeability after stretching is preferably 1.3 to 2.5 times or more of the moisture permeability before stretching. In this case, the moisture permeability before the drawing process also means the moisture permeability on the lower surface side of the absorber. And when the difference in moisture permeability before and after the stretching process is less than 1.3 times, since the change in moisture permeability is small, there is almost no change from before the stretching process, and the effect of reducing stuffiness in the diaper is low.
　なお、延伸加工に適した液不透過性シート１０１３は、フィルム破断伸度が７５０％以上のものが好ましい。破断伸度が７５０％未満のフィルムでは、延伸加工によりピンホールが発生しやすい。ピンホールの発生は、漏れの原因となる場合がある。 Note that the liquid-impermeable sheet 1013 suitable for stretching is preferably one having a film breaking elongation of 750% or more. In a film having a breaking elongation of less than 750%, pinholes are easily generated by stretching. The occurrence of pinholes can cause leakage.
　以上の実施形態では、サイドフラップ部１０１０に延伸加工を行うことにより、延伸された幅の分だけ裏面シート１００４が伸ばされる。その結果、充填材による微開孔の孔径が大きくなり、延伸加工を施された高透湿領域１００６は、高透湿化される。このため、高透湿領域１００６は、延伸加工を施していない領域と比較して、資材の坪量が低下し、透湿度が増す（いわゆる高透湿化）。又、高透湿領域１００６は、高透湿化することにより、高透湿領域１００６を構成する資材が柔軟化される。さらに、オムツ１００１ｂは、延伸された幅の分だけ弾性部材１０１２の配置面を液透過性シートの表面よりも高く保つことができる。このため、図２４に示すように、オムツ１００１ｂは、延伸加工を施さないオムツと比べて、体液を収容するポケット１０１６を大きくすることができる。 In the above embodiment, the back sheet 1004 is stretched by the stretched width by stretching the side flap portion 1010. As a result, the hole diameter of the micro-opening by the filler is increased, and the highly moisture permeable region 1006 that has been subjected to the stretching process is highly moisture permeable. For this reason, the high moisture-permeable area | region 1006 reduces the basic weight of material, and a moisture permeability increases compared with the area | region which has not performed the extending | stretching process (so-called highly moisture-permeable). In addition, the highly moisture permeable region 1006 is highly moisture permeable, so that the material constituting the highly moisture permeable region 1006 is softened. Furthermore, the diaper 1001b can keep the arrangement surface of the elastic member 1012 higher than the surface of the liquid-permeable sheet by the stretched width. For this reason, as shown in FIG. 24, the diaper 1001b can enlarge the pocket 1016 which accommodates a bodily fluid compared with the diaper which does not perform an extending | stretching process.
　このように、第２－２実施形態によれば、オムツ１００１ｂは、液不透過性シート１０１３と外装シート１０１１とを貼り合わせて裏面シート１００４とし、裏面シート１００４における吸収体１００５側縁のサイドフラップ部１０１０に高透湿化された高透湿領域１００６を配置している。このため、オムツ１００１ｂは、サイドフラップ部１０１０にフィルム素材を配置した構造となり、耐水圧が高まり、体液の漏れ出しを防ぐことができる。これに加えて、オムツ１００１ｂは、高透湿化の効果により通気性・透湿性を向上させるため、肌トラブルの原因となるオムツ内の蒸れを防ぐことができる。 Thus, according to the 2-2 embodiment, the diaper 1001b bonds the liquid-impermeable sheet 1013 and the exterior sheet 1011 together to form the back sheet 1004, and the side flaps on the side edge of the absorber 1005 in the back sheet 1004 A highly moisture permeable region 1006 that is highly permeable to moisture is disposed in the portion 1010. For this reason, the diaper 1001b has a structure in which a film material is disposed on the side flap portion 1010, the water pressure resistance is increased, and leakage of body fluid can be prevented. In addition, since the diaper 1001b improves air permeability and moisture permeability due to the effect of increasing moisture permeability, the diaper 1001b can prevent the diaper from becoming stuffy and causing skin troubles.
　さらに、第２－２実施形態によれば、延伸加工により柔軟な領域が、オムツ１００１ｂの内側表面に位置するサイドフラップ部１０１０に形成される。オムツ１００１ｂの内側表面が柔らかいため、オムツ１００１ｂは、延伸加工を施していないオムツと比べて装着違和感を低減できる。 Furthermore, according to the 2-2 embodiment, a flexible region is formed in the side flap portion 1010 located on the inner surface of the diaper 1001b by stretching. Since the inner surface of the diaper 1001b is soft, the diaper 1001b can reduce discomfort compared to a diaper that has not been stretched.
　また、オムツ１００１ｂの内側表面が柔らかいため、弾性部材１０１２の伸縮性が高まり、サイドフラップ部１０１０のオムツ上方への立ち上がりが良くなる。このため、オムツ１００１ｂは、身体にフィットし易く、排泄物が漏れ出しにくくなる。 Moreover, since the inner surface of the diaper 1001b is soft, the elasticity of the elastic member 1012 increases, and the side flap portion 1010 rises upward from the diaper. For this reason, the diaper 1001b is easy to fit on the body and excrement is difficult to leak out.
　さらに、オムツ１００１ｂは、着用中に体圧が最もかかる吸収体１００５の下面には高透湿領域を配置しておらず、吸収体１００５の下面は、高透湿領域１００６よりも耐水圧を高くしている。従って、オムツ１００１ｂを長時間着用した場合においても、オムツ１００１ｂは、吸収体１００５の下面から排泄物を染み出したり、湿気を漏れ出さないため、下着や布団を濡れた状態にしない。 Further, the diaper 1001b does not have a high moisture permeable area on the lower surface of the absorbent body 1005 where the body pressure is highest during wearing, and the lower surface of the absorbent body 1005 has a higher water pressure resistance than the high moisture permeable area 1006. is doing. Therefore, even when the diaper 1001b is worn for a long time, the diaper 1001b does not bleed out excrement from the lower surface of the absorbent body 1005 or leak moisture, so the underwear or the futon is not wetted.
　第２－２実施形態によれば、オムツ１００１ｂは、サイドフラップ部１０１０と吸収体１００５の下面において、同一の幅方向Ｗに連続した資材を配置しつつ、それぞれに異なる効果を付与できる。具体的には、サイドフラップ部１０１０は、通気性と透湿性が優れ、吸収体１００５の下面は、耐水圧が優れている。 According to the 2-2 embodiment, the diaper 1001b can provide different effects while arranging continuous materials in the same width direction W on the lower surfaces of the side flap portion 1010 and the absorber 1005. Specifically, the side flap portion 1010 is excellent in air permeability and moisture permeability, and the lower surface of the absorber 1005 is excellent in water pressure resistance.
　この実施形態において、裏面シート１００４を構成する液不透過性シート１０１３と外装シート１０１１との接着は、スパイラルスプレーを用いて、ＨＭＡで接着されていることが好ましい。スパイラルスプレーを用いてＨＭＡで接着すると、資材同士を部分的に接着できるため、接着面積が低密度である。接着面積が低密度である場合、液不透過性シート１０１３の延伸時の伸びは、外装シート１０１１に阻害されにくいため、延伸加工による資材破損が発生しにくい。なお、カーテンコーティングＨＭＡのように、貼り合わせる資材同士の接着面積が高密度である場合、液不透過性シート１０１３の延伸時の伸びは、外装シート１０１１により阻害される。つまり、接着面積が高密度の状態で、延伸加工を行うと資材破損が発生しやすい。なお、ＨＭＡで接着する場合、延伸前にＨＭＡを加熱し、軟化したＨＭＡを使用することが可能である。 In this embodiment, the liquid-impermeable sheet 1013 constituting the back sheet 1004 and the exterior sheet 1011 are preferably bonded with HMA using a spiral spray. Adhering with HMA using a spiral spray allows materials to be partially bonded together, resulting in a low density bonding area. When the adhesion area is low density, the elongation of the liquid-impermeable sheet 1013 during stretching is not easily hindered by the exterior sheet 1011, and thus material damage due to stretching is unlikely to occur. In addition, like the curtain coating HMA, when the bonding area between the materials to be bonded is high density, the stretching of the liquid-impermeable sheet 1013 during stretching is hindered by the exterior sheet 1011. That is, if the stretching process is performed in a state where the adhesion area is high density, the material is likely to be damaged. When bonding with HMA, it is possible to use HMA softened by heating HMA before stretching.
　弾性部材１０１２は、裏面シート１００４におけるサイドフラップ部１０１０の延伸加工を施していない領域に配置してあれば良い。弾性部材１０１２の本数は、限定されず、オムツの機能及び設計により異なってもよい。サイドフラップ部１０１０に弾性部材１０１２を複数本配置して、弾性部材１０１２を配置する領域を面状に形成し、着用者に当接させる場合、最も吸収体１００５に近い側に配置される弾性部材１０１２は、高透湿領域１００６と非高透湿領域との境目近傍の非高透湿領域に配置することが好ましい。 The elastic member 1012 may be disposed in a region where the side flap portion 1010 of the back sheet 1004 is not stretched. The number of elastic members 1012 is not limited, and may vary depending on the function and design of the diaper. When a plurality of elastic members 1012 are arranged on the side flap portion 1010 and the region where the elastic members 1012 are arranged is formed in a planar shape and brought into contact with the wearer, the elastic members arranged closest to the absorber 1005 1012 is preferably arranged in a non-high moisture-permeable region near the boundary between the high moisture-permeable region 1006 and the non-high moisture-permeable region.
　これによれば、高透湿領域１００６と非高透湿領域との剛性差により、高透湿領域１００６と非高透湿領域との境目を折り目として形成し易くなる。また、この折り目により、非高透湿領域は、持ち上げられるため、サイドフラップ部１０１０の弾性部材１０１２を配置する領域と肌とは、皺を発生させずにフィットする。これにより、オムツ１００１ｂは、シール性を高められる。 According to this, due to the difference in rigidity between the high moisture permeable region 1006 and the non-high moisture permeable region, it becomes easy to form a boundary between the high moisture permeable region 1006 and the non-high moisture permeable region. Further, since the non-high moisture permeable region is lifted by this fold, the region where the elastic member 1012 of the side flap portion 1010 is disposed and the skin fit without causing wrinkles. Thereby, the diaper 1001b can improve sealing performance.
　なお、以下の第２－３～２－６実施形態においては、第２－１、２－２実施形態と異なる点を主に説明し、重複する説明を省略する。 In the following second to third to sixth embodiments, the differences from the second to 2-1 and 2-2 embodiments will be mainly described, and a duplicate description will be omitted.
　（第２－３実施形態）
　図２８は本発明の第２－３実施形態を示す。この実施形態のオムツ１００１Ｃでは、裏面シート１００４が液不透過性シート１０１３と外装シート１０１１とを接着して形成されている。表面シート１００３は、吸収体１００５を被い、側方に伸びている。表面シート１００３は、親水性の液透過性シートを用いている。表面シート１００３、液不透過性シート１０１３及び外装シート１０１１は、接着されている。接着部分は、延伸加工（高透湿化）されている。つまり、高透湿領域１００６は、液不透過性シート１０１３と、外装シート１０１１と、表面シート１００３に形成されている。 (2-3 embodiment)
FIG. 28 shows a second to third embodiment of the present invention. In the diaper 1001C of this embodiment, a back sheet 1004 is formed by bonding a liquid-impermeable sheet 1013 and an exterior sheet 1011. The top sheet 1003 covers the absorber 1005 and extends sideways. As the top sheet 1003, a hydrophilic liquid-permeable sheet is used. The top sheet 1003, the liquid-impermeable sheet 1013, and the exterior sheet 1011 are bonded. The bonded portion is stretched (highly moisture permeable). That is, the highly moisture permeable region 1006 is formed in the liquid-impermeable sheet 1013, the exterior sheet 1011, and the top sheet 1003.
　オムツ１００１Ｃは、このような構造とすることにより、吸収体１００５の側部からサイドフラップ部１０１０の高透湿領域１００６へ流出した体液を親水性の液透過性シート（表面シート１００３）で、吸収体１００５へ再度誘導できる。 With this structure, the diaper 1001C absorbs body fluid that has flowed from the side of the absorbent body 1005 to the highly moisture permeable region 1006 of the side flap portion 1010 with a hydrophilic liquid-permeable sheet (surface sheet 1003). It can be guided to the body 1005 again.
　（第２－４実施形態）
　図２９は、本発明の第２－４実施形態を示す。この実施形態のオムツ１００１Ｄでは、サイドフラップ部１０１７、１０１８が片側２列ずつに配置されていると共に、２列のサイドフラップ部１０１７、１０１８のそれぞれに対して延伸加工（高透湿化）が施されている。吸収体１００５の側部に２つのサイドフラップ部１０１７、１０１８が配置されているため、オムツ１００１Ｄは、２重に防漏性を機能させることが可能となる。又、裏面シート１００４を構成する液不透過性シート１０１３が、サイドフラップ１０１８に覆われるため、オムツ１００１Ｄは、肌触りも良好となる。 (2-4 embodiment)
FIG. 29 shows Embodiment 2-4 of the present invention. In the diaper 1001D of this embodiment, the side flap portions 1017 and 1018 are arranged in two rows on each side, and stretching processing (high moisture permeability) is performed on each of the two rows of side flap portions 1017 and 1018. Has been. Since the two side flap portions 1017 and 1018 are arranged on the side portion of the absorbent body 1005, the diaper 1001D can double-act the leakproof function. Moreover, since the liquid-impermeable sheet 1013 which comprises the back surface sheet 1004 is covered by the side flap 1018, the diaper 1001D also becomes favorable to the touch.
　（第２－５実施形態）
　図３０は本発明の第２－５実施形態を示す。この実施形態のオムツ１００１Ｅでは、サイドフラップ部１０１０が内倒しで形成されており、同様に延伸加工（高透湿化）が施されている。オムツ１００１Ｅは、このような構造とすることにより、吸収体１００５表面がサイドフラップ部１０１０に覆われるため、吸収体１００５の肌に接触する面積を少なくすることができ、排泄物の肌への逆戻りを少なくすることができる。 (Second Embodiment)
FIG. 30 shows Embodiment 2-5 of the present invention. In the diaper 1001E of this embodiment, the side flap portion 1010 is formed inwardly, and is similarly stretched (highly moisture permeable). Since the diaper 1001E has such a structure, the surface of the absorbent body 1005 is covered with the side flap portion 1010. Therefore, the area of the absorbent body 1005 that contacts the skin can be reduced, and the excrement returns to the skin. Can be reduced.
　（第２－６実施形態）
　図３１は本発明の第２－６実施形態を示す。この実施形態のオムツ１００１Ｆでは、高透湿領域１００６の長手方向Ｌに沿った、中央部１００６ａと端部１００６ｂとにおいて、中央部１００６ａが端部１００６ｂよりも、より広い領域で高透湿化されている。中央部１００６ａが端部１００６ｂよりも、より広い領域で高透湿化されるため、中央部１００６ａのポケットの幅が端部１００６ｂのポケットの幅よりも広くなる。つまり、オムツ１００１Ｆは、排泄物が溜まり易い股下領域の容積を広く保つことができる。従って、オムツ１００１Ｆは、オムツからの漏れ出しを抑制することができる。 (2-6 embodiment)
FIG. 31 shows a 2-6 embodiment of the present invention. In the diaper 1001F of this embodiment, in the central part 1006a and the end part 1006b along the longitudinal direction L of the high moisture permeable area 1006, the central part 1006a is highly permeable in a wider area than the end part 1006b. ing. Since the central portion 1006a is highly moisture permeable in a wider area than the end portion 1006b, the width of the pocket of the central portion 1006a is wider than the width of the pocket of the end portion 1006b. That is, the diaper 1001F can keep the volume of the crotch region where the excrement easily collects wide. Therefore, the diaper 1001F can suppress leakage from the diaper.
　この実施形態とするための加工としては、端部１００６ｂと中央部１００６ａの押し込み刃の高さを替える。すなわち、中央部１００６ａの刃の押し込み高さを、端部１００６ｂのそれよりも高くすることにより中央部１００６ａを端部１００６ｂよりも高透湿化することができる。又、中央部１００６ａを端部１００６ｂよりも幅方向Ｗに広い面積で高透湿化する、すなわち高透湿化するもともとの面積を中央部１００６ａと端部１００６ｂで替えることにより、中央部１００６ａを端部１００６ｂよりも高透湿化することができる。 As processing for obtaining this embodiment, the heights of the pushing blades of the end portion 1006b and the central portion 1006a are changed. That is, the central portion 1006a can be made to have higher moisture permeability than the end portion 1006b by making the pushing height of the blade of the central portion 1006a higher than that of the end portion 1006b. Further, the central portion 1006a is made to be highly permeable in a wider area in the width direction W than the end portion 1006b, that is, by changing the original area to be highly permeable to the central portion 1006a and the end portion 1006b, the central portion 1006a is changed. The moisture permeability can be higher than that of the end portion 1006b.
　（その他の実施形態）
　本実施形態では、オムツは、高透湿化（延伸加工）された部位を吸収体１００５側部に有するが、オープンタイプのオムツに限定されるものではない。オムツは、長手方向中央部でオムツ本体を二つ折りにし、背側・腹側の両サイドを係止固定したパンツタイプでも良い。このようなオムツによれば、排泄物が溜まりやすい股間部の容積を広く保つことができるため、オムツからの漏れ出しを抑制することができる。 (Other embodiments)
In the present embodiment, the diaper has a highly moisture permeable (stretched) portion on the side of the absorbent body 1005, but is not limited to an open type diaper. The diaper may be a pants type in which the diaper body is folded in half at the center in the longitudinal direction and both the back side and the abdomen side are locked and fixed. According to such a diaper, since the volume of the crotch part where excrement tends to accumulate can be kept wide, leakage from the diaper can be suppressed.
　また、本発明は、上記オムツに限定されることなく、生理用ナプキンや尿取りパッドなどの吸収性物品に適用することができる。 Moreover, the present invention is not limited to the above-mentioned diaper, but can be applied to absorbent articles such as sanitary napkins and urine pads.
　本実施形態では、シート１００４に用いる液不透過性シート１０１３としては、約５０重量％の炭酸カルシウムを充填剤として含むポリエチレンからなるフィルムを用いている。このようなフィルムとして、フィルムの製造加工途中で延伸して微多孔質を形成することにより、オムツの加工時の高透湿化以前より透湿性を有するフィルムを用いても良い。 In the present embodiment, as the liquid-impermeable sheet 1013 used for the sheet 1004, a film made of polyethylene containing about 50% by weight of calcium carbonate as a filler is used. As such a film, a film having moisture permeability may be used by stretching in the course of manufacturing the film to form a microporous material before the moisture permeability at the time of diaper processing.
　同様に、このようなフィルムとして、２０～７０重量％の炭酸カルシウムを充填剤として含み、坪量が、１５～４０ｇ/ｍ２のポリエチレンからなるフィルムであって、フィルムの製造加工途中でほぼ未延伸の非透湿性のフィルムを使用することもできる。この場合、オムツの加工時に行われる延伸加工により延伸された幅の分だけ裏面シート１００４が伸ばされ、フィルムは、充填剤により微開孔が形成されて透湿性が付与される。 Similarly, as such a film, it is a film made of polyethylene containing 20 to 70% by weight of calcium carbonate as a filler and having a basis weight of 15 to 40 g / m 2. A stretched, moisture-impermeable film can also be used. In this case, the back sheet 1004 is stretched by the width stretched by the stretching process performed at the time of processing the diaper, and the film is provided with moisture permeability by forming fine holes with the filler.
　吸収体１００５下面の体圧のかかりやすい部分では、フィルムは、微多孔質を有していないため、耐水圧をより高く保つことができ、液不透過性シート１０１３からの液の滲み出しを効果的に防止することができる。 In the portion where the body pressure is easily applied on the lower surface of the absorbent body 1005, since the film does not have microporosity, the water pressure resistance can be kept higher, and the liquid oozes out from the liquid-impermeable sheet 1013. Can be prevented.
　なお、本実施形態では、フィルムとして透湿性フィルムが用いられている。透湿性フィルムに用いられる樹脂として、ポリエチレン樹脂、ポリプロピレン樹脂、フッ素樹脂を、例えば、溶融製膜延伸法により２０～４０μｍの厚みに成形したものが用いられている。 In this embodiment, a moisture permeable film is used as the film. As the resin used for the moisture permeable film, a resin obtained by molding a polyethylene resin, a polypropylene resin, or a fluororesin into a thickness of 20 to 40 μm by, for example, a melt film forming method is used.
　なお、日本国特許出願第２００８－０９３８１６号（２００８年３月３１日出願）の全内容が、参照により、本願明細書に組み込まれている。 Note that the entire content of Japanese Patent Application No. 2008-093816 (filed on March 31, 2008) is incorporated herein by reference.
（第３―１実施形態）
[背景技術]
　従来、着用者の肌と股下領域との間にいわゆるポケットが形成されるオムツが知られている（例えば、特許文献４）。このオムツ２１００は、図３２（ａ）に示すように、液透過性のトップシート２１０１ａと、液不透過性のバックシート（図示せず）と、液体を吸収し保持する吸収体２１０１ｃとから成る吸収性本体２１０１を備えている。吸収体２１０１ｃは、トップシート２１０１ａと、バックシート（図示せず）との間に配置されている。吸収性本体２１０１は、着用時には背側から腹側までの長手方向に背側領域Ｓ２１、股下領域Ｓ２２、腹側領域Ｓ２３を有し、着用者の股下を中心に背側から腹側を覆う。この吸収性本体２１０１の幅方向の両側には、トップシート２１０１ａとバックシート（図示せず）が延在されることによってサイドフラップ部２１１０が設けられている。この各サイドフラップ部２１１０の股下領域Ｓ２２の外縁には、長手方向に沿って伸長状態で弾性部材２１２０が設けられている。又、各サイドフラップ部２１１０の腹側領域Ｓ２３には、折り返し部２１３０が設けられている。 (3-1 embodiment)
[Background]
Conventionally, a diaper in which a so-called pocket is formed between a wearer's skin and a crotch region is known (for example, Patent Document 4). As shown in FIG. 32A, the diaper 2100 includes a liquid-permeable top sheet 2101a, a liquid-impermeable back sheet (not shown), and an absorber 2101c that absorbs and holds liquid. An absorptive main body 2101 is provided. The absorber 2101c is disposed between the top sheet 2101a and a back sheet (not shown). The absorbent main body 2101 has a dorsal region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction from the dorsal side to the abdominal side when worn, and covers the abdominal side from the dorsal side centering on the wearer's inseam. On both sides in the width direction of the absorbent main body 2101, side flap portions 2110 are provided by extending a top sheet 2101 a and a back sheet (not shown). An elastic member 2120 is provided on the outer edge of the crotch region S22 of each side flap portion 2110 in an extended state along the longitudinal direction. Further, a folded portion 2130 is provided in the ventral region S23 of each side flap portion 2110.
　この従来例のオムツ２１００を着用者が着用すると、各サイドフラップ部２１１０の外周が各弾性部材２１２０の収縮によって着用者の足回りに密着すると共に、各サイドフラップ部２１１０の股下領域Ｓ２２の幅寸法が腹側領域Ｓ２３の幅寸法に比べて大きいことから、着用者の股下側に空間、いわゆるポケットができる。このポケットによって着用者から排泄された尿、便等を横漏れすることなく確実に保持できる。 When the wearer wears the diaper 2100 of the conventional example, the outer circumference of each side flap portion 2110 is brought into close contact with the wearer's leg due to the contraction of each elastic member 2120, and the width dimension of the crotch region S22 of each side flap portion 2110 Is larger than the width dimension of the ventral region S23, so that a space, a so-called pocket, is formed on the inseam side of the wearer. By this pocket, urine, feces and the like excreted from the wearer can be reliably held without side leakage.
　他の従来例のオムツ２１５０としては、特許文献５に開示されたものがある。このオムツ２１５０は、図３２（ｂ）に示すように、液透過性のトップシート２１５１ａと、液不透過性のバックシート２１５１ｂと、液体を吸収し保持する吸収体２１５１ｃとから成る吸収性本体２１５１を備えている。吸収体２１５１ｃは、トップシート２１５１ａと，バックシート２１５１ｂの間に配置されている。吸収性本体２１５１は、着用時には背側から腹側までの長手方向に背側領域Ｓ２１、股下領域Ｓ２２、腹側領域Ｓ２３を有し、着用者の股下を中心に背側から腹側を覆う。この吸収性本体２１５１の幅方向の両側には、伸長状態で一対の弾性部材２１５２が設けられている。各弾性部材２１５２は、股下領域Ｓ２２で外側に膨らむように設けられている。これによって、一対の弾性部材２１５２の間隔は、背側領域Ｓ２１及び腹側領域Ｓ２３で狭く、股下領域Ｓ２２で広く設定されている。 Another conventional diaper 2150 is disclosed in Patent Document 5. As shown in FIG. 32B, the diaper 2150 includes an absorbent main body 2151 that includes a liquid-permeable top sheet 2151a, a liquid-impermeable back sheet 2151b, and an absorbent body 2151c that absorbs and holds liquid. It has. The absorber 2151c is disposed between the top sheet 2151a and the back sheet 2151b. The absorbent main body 2151 has a dorsal region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction from the back side to the abdomen when worn, and covers the abdomen from the back side with the crotch of the wearer as the center. On both sides of the absorbent main body 2151 in the width direction, a pair of elastic members 2152 are provided in an extended state. Each elastic member 2152 is provided so as to swell outward in the crotch region S22. Thereby, the space | interval of a pair of elastic member 2152 is narrow in back side area | region S21 and abdominal side area | region S23, and is set wide in crotch area | region S22.
　この他の従来例のオムツ２１５０を着用者が着用すると、吸収性本体２１５１の股下領域Ｓ２２の外周が各弾性部材２１５２の収縮によって着用者の足回りに密着すると共に、吸収性本体２１５１の股下領域Ｓ２２では一対の弾性部材２１５２間の間隔が広いことから、着用者の股下側に空間、いわゆるポケットができる。このポケットによって、前記従来例と同様に、着用者から排泄された尿、便等を横漏れすることなく確実に保持できる。 When the wearer wears the other conventional diaper 2150, the outer circumference of the crotch region S22 of the absorbent main body 2151 adheres closely to the wearer's legs due to the contraction of the elastic members 2152, and the crotch region of the absorbent main body 2151 In S22, since the space between the pair of elastic members 2152 is wide, a space, so-called pocket, is created on the inseam side of the wearer. By this pocket, the urine, feces, etc. excreted from the wearer can be securely held without side leakage as in the conventional example.
　　（特許文献４）特開昭６２－１９９８０２号公報（第６頁、図４、図５）
　　（特許文献５）特開平４－２４２６４５号公報（第８頁、図１、図２）
[発明の開示]
　しかしながら、前記した２つの従来例では、着用時に股下領域Ｓ２２にポケットを形成するために、ポケットを形成しないものに比べてオムツ２１００，２１５０の幅方向分だけ余分に資材が必要である。 (Patent Document 4) Japanese Patent Application Laid-Open No. 62-199802 (Page 6, FIGS. 4 and 5)
(Patent Document 5) JP-A-4-242645 (page 8, FIG. 1, FIG. 2)
[Disclosure of the Invention]
However, in the above two conventional examples, a pocket is formed in the crotch region S22 when worn, and extra materials are required for the width direction of the diapers 2100 and 2150 as compared with the case where no pocket is formed.
　又、前者の従来例では、各サイドフラップ部２１１０に折り返し部２１３０を設けるため、製造時の加工が面倒であり、製造コストが高くなるという問題がある。 Further, in the former conventional example, since the folded portion 2130 is provided in each side flap portion 2110, there is a problem that processing at the time of manufacture is troublesome and manufacturing cost is increased.
　後者の従来例では、一対の弾性部材２１５２を曲線状に設ける必要があるため、製造時の加工が面倒であり、製造コストが高くなるという問題がある。 In the latter conventional example, since it is necessary to provide the pair of elastic members 2152 in a curved shape, there is a problem that the processing at the time of manufacture is troublesome and the manufacturing cost increases.
　そこで、本発明は、着用者の股下側にいわゆるポケットを形成するものにあって、使用資材の低減化、製造時の加工の容易化、ひいては製造コストの低下を図ることができる吸収性物品を提供することを目的とする。 Therefore, the present invention is to form a so-called pocket on the inseam of the wearer, and an absorbent article that can reduce the amount of materials used, facilitate the processing during manufacturing, and thus reduce the manufacturing cost. The purpose is to provide.
　上記目的を達成する本発明の特徴は、液透過性のトップシート（トップシート２００３）と、液不透過性のバックシート（バックシート２００４）と、トップシートとバックシートの間に配置され、液体を吸収し保持する吸収体（吸収体２００５）とから少なくとも構成され、着用時には背側から腹側までの長手方向（長手方向Ｌ）に背側領域（背側領域Ｓ２１）、股下領域（股下領域Ｓ２２）、腹側領域（腹側領域Ｓ２３）を有する吸収性本体（吸収性本体２００２）と、吸収体本体の幅方向（幅方向Ｗ）の両側に設けられた左右一対のサイドフラップ部（サイドフラップ部２０１０）と、各サイドフラップ部の少なくとも股下領域に、長手方向に伸長状態で設けられた一対の弾性部材（例えば、弾性部材ａ）とを備えた吸収性物品(例えば、オムツ２００１Ａ)において、股下領域におけるサイドフラップ部の吸収性本体と最も外側に位置する弾性部材との間には、幅方向に延伸された股下側延伸領域（例えば、股下側延伸領域２０１３）が設けられたことを要旨とする。 A feature of the present invention that achieves the above object is that a liquid-permeable top sheet (top sheet 2003), a liquid-impermeable back sheet (back sheet 2004), and a liquid that is disposed between the top sheet and the back sheet, And a back region (back region S21), a crotch region (inseam region) in the longitudinal direction (longitudinal direction L) from the back side to the abdomen when worn. S22), an absorbent main body (absorbent main body 2002) having a ventral region (ventral region S23), and a pair of left and right side flap portions (sides) provided on both sides in the width direction (width direction W) of the absorbent main body An absorbent article (e.g., an elastic member (e.g., elastic member a)) provided in a stretched state in the longitudinal direction at least in the crotch region of each side flap portion. For example, in the diaper 2001A), a crotch-side stretched region (for example, a crotch-side stretched region 2013) stretched in the width direction between the absorbent main body of the side flap portion in the crotch region and the outermost elastic member. This is the summary.
　本発明の特徴によれば、着用者が着用すると、各サイドフラップ部の外周が各弾性部材の収縮によって着用者の足回りに密着すると共に、各サイドフラップ部の股下領域の伸張可能な幅寸法が一対の股下側延伸領域によって背側領域や腹側領域のサイドフラップ部の幅寸法より大きいことから、着用者の股下領域にいわゆるポケットができる。各股下側延伸領域は、各サイドフラップ部の股下領域を幅方向に延伸させて設けたため、股下側延伸領域は、股下領域にいわゆるポケットを形成しないオムツと同じ幅の資材で形成できる。又、各サイドフラップ部に折り返しを設けることなく、各サイドフラップ部に弾性部材を曲線状に設けることなく、着用者の股下側にポケットを形成できる。以上より、使用資材の低減化、製造時の加工の容易化、ひいては製造コストの低下を図ることができる。 According to the characteristics of the present invention, when the wearer wears, the outer circumference of each side flap portion is in close contact with the wearer's leg due to the contraction of each elastic member, and the crotch region of each side flap portion can be expanded. Is larger than the width dimension of the side flap portions in the back side region and the abdominal side region due to the pair of crotch side extension regions, so that a so-called pocket is formed in the wearer's crotch region. Since each crotch side extension region is provided by extending the crotch region of each side flap portion in the width direction, the crotch side extension region can be formed of a material having the same width as a diaper that does not form a so-called pocket in the crotch region. Further, a pocket can be formed on the crotch side of the wearer without providing a fold at each side flap and without providing an elastic member in a curved shape at each side flap. From the above, it is possible to reduce the materials used, facilitate the processing during manufacturing, and consequently reduce the manufacturing cost.
　また、着用者の股下近くの足回りを覆う各サイドフラップ部の箇所が薄く柔らかい股下側延伸領域であるため、サイドフラップ部は、装着違和感が低い、着用者の足の運動に対する追従性が良い、吸収性本体に対して立ち上がり易い、各サイドフラップ部の外周を締め付け過ぎないでも足回りに密着させることができる等の利点がある。 In addition, since the portions of each side flap part covering the underbody near the wearer's crotch are thin and soft crotch side extension regions, the side flap part has a low feeling of wearing discomfort, and has good followability to the movement of the wearer's legs. There are advantages such as being easy to stand up with respect to the absorbent main body and being able to adhere to the suspension without excessive tightening of the outer periphery of each side flap portion.
[発明を実施するための形態]
　図３３～図３８は、本発明の第３－１実施形態を示す。図３３は、オムツ２００１Ａの展開状態の平面図である。図３４は、図３３のＡ２－Ａ２線断面図である。図３５は、図３３のＢ２－Ｂ２線断面図である。図３６は、着用状態のオムツ２００１Ａの断面図である。図３７は延伸装置の要部断面図である。図３８（ａ）は、オムツ２００１Ａのサイドフラップ部の股下領域の中央を外側に引っ張る前の平面図である。図３８（ｂ）は、オムツ２００１Ａの一方のサイドフラップ部の股下領域の中央の端部を外側に引っ張った状態の平面図である。 [Mode for Carrying Out the Invention]
33 to 38 show a 3-1 embodiment of the present invention. FIG. 33 is a plan view of the diaper 2001A in a developed state. 34 is a cross-sectional view taken along line A2-A2 of FIG. 35 is a cross-sectional view taken along line B2-B2 of FIG. FIG. 36 is a cross-sectional view of the diaper 2001A in a worn state. FIG. 37 is a cross-sectional view of the main part of the stretching apparatus. FIG. 38A is a plan view before the center of the crotch region of the side flap portion of the diaper 2001A is pulled outward. FIG. 38B is a plan view of a state in which the center end portion of the crotch region of one side flap portion of the diaper 2001A is pulled outward.
　図３３～図３５に示すように、吸収性物品であるオムツ２００１Ａは、吸収性本体２００２と、吸収性本体２００２の幅方向Ｗの両側に設けられた左右一対のサイドフラップ部２０１０と、一対のサイドフラップ部２０１０の背側の幅方向Ｗの両端に設けられた一対の背側ウエストフラップ部２０２０と、一対のサイドフラップ部２０１０の腹側の幅方向Ｗの両端に設けられた一対の腹側ウエストフラップ部２０２１とを備えている。 As shown in FIGS. 33 to 35, a diaper 2001A as an absorbent article includes an absorbent main body 2002, a pair of left and right side flap portions 2010 provided on both sides in the width direction W of the absorbent main body 2002, and a pair of A pair of dorsal waist flaps 2020 provided at both ends in the width direction W on the back side of the side flaps 2010 and a pair of ventral sides provided at both ends in the width direction W on the ventral side of the pair of side flaps 2010 A waist flap 2021.
　吸収性本体２００２は、液透過性のトップシート２００３と、液不透過性のバックシート２００４と、トップシート２００３とバックシート２００４の間に配置され、液体を吸収し保持する吸収体２００５とから少なくとも構成される。オムツ２００１Ａは、背側及び腹側が決められており、背側から腹側に向かう長手方向Ｌに沿って、順に背側領域Ｓ２１、股下領域Ｓ２２、腹側領域Ｓ２３とが設けられている。吸収性本体２００２は、着用時には背側から腹側までの長手方向Ｌに背側領域Ｓ２１、股下領域Ｓ２２、腹側領域Ｓ２３を有して着用者の背側と股下側と腹側を被う。 The absorbent main body 2002 includes at least a liquid-permeable top sheet 2003, a liquid-impermeable back sheet 2004, and an absorber 2005 that is disposed between the top sheet 2003 and the back sheet 2004 and absorbs and holds liquid. Composed. The diaper 2001A has a back side and a ventral side, and is provided with a back side region S21, a crotch region S22, and a ventral side region S23 in this order along the longitudinal direction L from the back side to the ventral side. The absorbent main body 2002 has a back side region S21, a crotch region S22, and a ventral region S23 in the longitudinal direction L from the back side to the abdominal side when worn, and covers the wearer's back side, crotch side, and ventral side.
　トップシート２００３は、その幅方向Ｗの両端部が吸収体２００５を包み込むように折り込まれている。このように折り込まれたトップシート２００３の箇所と吸収体２００５とがバックシート２００４にホットメルト等の糊によって接合されている。トップシート２００３は、親水性不織布、織物、開口プラスチックフィルム、開口を有する疎水性不織布、坪量が、１０ｇ／ｍ２であるスパンボンド法/メルトブロー法/スパンボンド法で製造された積層不織布（以下、ＳＭＳと記す。）等より形成される。 The top sheet 2003 is folded so that both end portions in the width direction W wrap around the absorber 2005. The portion of the top sheet 2003 folded in this way and the absorber 2005 are joined to the back sheet 2004 by glue such as hot melt. The top sheet 2003 is a hydrophilic nonwoven fabric, a woven fabric, an apertured plastic film, a hydrophobic nonwoven fabric having an aperture, a laminated nonwoven fabric manufactured by a spunbond method / melt blow method / spunbond method having a basis weight of 10 g / m 2 (hereinafter referred to as a “non-woven fabric”) , Written as SMS).
　バックシート２００４は、透湿又は非透湿性フィルム、このようなフィルムに不織布を張り合わせたシート等より形成される。吸収体２００５は、液体吸収保持性を有する積層体である。吸収体２００５は、吸収性のパルプ及び高吸収性ポリマーを混合して形成される。 The back sheet 2004 is formed of a moisture permeable or non-moisture permeable film, a sheet obtained by bonding a nonwoven fabric to such a film, or the like. The absorber 2005 is a laminated body having liquid absorption retention. Absorber 2005 is formed by mixing absorbent pulp and superabsorbent polymer.
　一対のサイドフラップ部２０１０は、吸収性本体２００２の幅方向Ｗの両側より延在されたバックシート２００４と、液不透過性の外装シート２０１１とから構成されている。外装シート２０１１は、吸収性本体２００２の裏面とバックシート２００４とに重ね配置される。 The pair of side flap portions 2010 is composed of a back sheet 2004 extended from both sides in the width direction W of the absorbent main body 2002 and a liquid-impermeable exterior sheet 2011. The exterior sheet 2011 is overlaid on the back surface of the absorbent main body 2002 and the back sheet 2004.
　バックシート２００４と外装シート２０１１間は、ホットメルト等の糊で接合されている。外装シート２０１１は、バックシート２００４よりも幅方向Ｗの寸法が長く形成されている。 The back sheet 2004 and the exterior sheet 2011 are joined with a paste such as hot melt. The exterior sheet 2011 is formed to have a longer dimension in the width direction W than the back sheet 2004.
　各サイドフラップ部２０１０の股下領域Ｓ２２の全域と、股下領域Ｓ２２に連続する背側領域Ｓ２１及び腹側領域Ｓ２３の一部領域とには、長手方向Ｌに伸張状態で４列の弾性部材２０１２ａ～２０１２ｄが設けられている。 The entire length of the crotch region S22 of each side flap portion 2010 and the partial region of the back side region S21 and the abdomen side region S23 continuous to the crotch region S22 are stretched in the longitudinal direction L in four rows. 2012d is provided.
　外側３列の弾性部材２０１２ａ～２０１２ｃは、バックシート２００４より幅方向Ｗに長く形成された外装シート２０１１の両側部に設けられている。最も内側に位置する弾性部材２０１２ｄは、吸収性本体２００２の側縁と、最も外側に位置する弾性部材２０１２ａとのほぼ中心位置に配置される。弾性部材２０１２ｄは、外装シート２０１１とバックシート２００４との間に設けられている。各弾性部材２０１２ａ～２０１２ｄは、例えばポリウレタン系弾性糸である。 The outer three rows of elastic members 2012a to 2012c are provided on both sides of the exterior sheet 2011 formed longer in the width direction W than the back sheet 2004. The innermost elastic member 2012d is disposed at a substantially central position between the side edge of the absorbent main body 2002 and the outermost elastic member 2012a. The elastic member 2012d is provided between the exterior sheet 2011 and the back sheet 2004. The elastic members 2012a to 2012d are, for example, polyurethane elastic yarns.
　各サイドフラップ部２０１０の股下領域Ｓ２２で、且つ、吸収性本体２００２と最も外側に位置する弾性部材２０１２ａとの間には、幅方向Ｗに延伸された股下側延伸領域２０１３が設けられている。具体的には、股下側延伸領域２０１３は、吸収性本体２００２と外側から３列目の弾性部材２０１２ｃとの間に設けられている。各股下側延伸領域２０１３は、延伸加工によって他の領域より低坪量化された領域である。各股下側延伸領域２０１３には、サイドフラップ部２０１０の幅方向Ｗに沿って延伸量が小さい密部（符号を付さず）と延伸量が大きい粗部（符号を付さず）とが交互に設けられている。各股下側延伸領域２０１３は、延伸前の幅と比較した場合に１．５～３．０倍の範囲で延伸されている。 In the crotch region S22 of each side flap portion 2010 and between the absorbent main body 2002 and the elastic member 2012a located on the outermost side, a crotch side extended region 2013 extended in the width direction W is provided. Specifically, the crotch side extension region 2013 is provided between the absorbent main body 2002 and the third row of elastic members 2012c from the outside. Each crotch-side stretch region 2013 is a region having a lower basis weight than other regions by stretching. In each crotch-side stretch region 2013, a dense portion (not labeled) with a small stretch amount and a rough portion (not labeled) with a large stretch amount alternate along the width direction W of the side flap portion 2010. Is provided. Each crotch-side stretch region 2013 is stretched in a range of 1.5 to 3.0 times as compared with the width before stretching.
　各股下側延伸領域２０１３は、装着時に外部から内部の排泄物が視認できる透明度を有する。つまり、各股下側延伸領域２０１３の透過率は、外部から内部が透過できる透過率である。光の透過率は、延伸加工によって３％以上上昇し、光の透過率が６１％以上（ＪＩＳ規格のＫ７１０５に準じて測定）であれば、外部から内部の排泄物を視認できる。 Each inseam extending region 2013 has transparency that allows internal excrement to be visually recognized from the outside when worn. That is, the transmittance of each crotch-side stretched region 2013 is a transmittance that allows transmission from the outside to the inside. The light transmittance rises by 3% or more due to stretching, and if the light transmittance is 61% or more (measured according to JIS standard K7105), the internal excrement can be visually recognized from the outside.
　又、本実施形態の各股下側延伸領域２０１３は、吸収性本体２００２と最も外側に位置する弾性部材２０１２ａとの間に亘ってサイドフラップ部２０１０の幅方向Ｗに設けられている。各股下側延伸領域２０１３は、股下領域Ｓ２２の全範囲に亘ってサイドフラップ部２０１０の長手方向Ｌに設けられている。各股下側延伸領域２０１３は、この実施形態では背側領域Ｓ２１や腹側領域Ｓ２３にまで延在されていない。股下側延伸領域２０１３の具体的な作製方法については、下記に詳述する。 Moreover, each crotch side extending | stretching area | region 2013 of this embodiment is provided in the width direction W of the side flap part 2010 between the absorptive main body 2002 and the elastic member 2012a located in the outermost side. Each crotch side extended region 2013 is provided in the longitudinal direction L of the side flap portion 2010 over the entire range of the crotch region S22. Each crotch side extended region 2013 does not extend to the dorsal region S21 or the ventral region S23 in this embodiment. A specific method for producing the crotch-side stretch region 2013 will be described in detail below.
　ウエストフラップ部は、一対の背側ウエストフラップ部２０２０と一対の腹側ウエストフラップ部２０２１とから構成されている。一対の背側ウエストフラップ部２０２０は、一対のサイドフラップ部２０１０の背側領域Ｓ２１に一端側が固定されている。各背側ウエストフラップ部２０２０の先端側には、係止部２０２２が設けられている。 The waist flap portion is composed of a pair of back side waist flap portions 2020 and a pair of ventral side waist flap portions 2021. One end side of the pair of back side waist flap portions 2020 is fixed to the back side region S21 of the pair of side flap portions 2010. A locking portion 2022 is provided on the distal end side of each back side waist flap portion 2020.
　各係止部２０２２は、機械的な係止力で係止する面ファスナーや粘着力によって係止する粘着テープである。係止部２０２２を面ファスナーとする場合には、腹側ウエストフラップ部２０２１の素材は少なくとも表面が不織布であるシート素材とされる。 Each locking portion 2022 is a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force. When the hooking portion 2022 is a hook-and-loop fastener, the material of the ventral waist flap 2021 is a sheet material having at least a non-woven surface.
　次に、股下側延伸領域２０１３の作製方法を簡単に説明する。サイドフラップ部２０１０は、スパイラルスプレーを用いて、感熱性接着剤（例えば、ホットメルト等。以下、ＨＭＡと記す。）を径１５ｍｍの大きさで、坪量が５ｇ／ｍ２になるように塗布して、バックシート２００４と、外装シート２０１１とを、張り合わせたものである。なお、バックシート２００４は、坪量が、２３．５ｇ／ｍ２の非通気性フィルムである。また、外装シート２０１１は、坪量が、１３ｇ／ｍ２のＳＭＳである。 Next, a method for producing the crotch-side stretch region 2013 will be briefly described. The side flap portion 2010 is applied using a spiral spray so that a heat-sensitive adhesive (for example, hot melt, etc., hereinafter referred to as HMA) has a diameter of 15 mm and a basis weight of 5 g / m 2. Then, the back sheet 2004 and the exterior sheet 2011 are bonded together. The back sheet 2004 is a non-breathable film having a basis weight of 23.5 g / m 2 . The exterior sheet 2011 is an SMS having a basis weight of 13 g / m 2 .
　股下側延伸領域２０１３を形成する延伸装置２０３０は、図３７に示すように、互いに対向し、且つ、噛み合い可能な一対の延伸刃列部２０３１を有する。各延伸刃列部２０３１は、刃の深さを２．５ｍｍ、一対の刃のピッチ間を１．２５ｍｍ、刃数を１７本に設定される。延伸装置２０３０は、延伸刃列部２０３１の設定温度を１００℃として延伸加工を施す。このようにして延伸することによって、股下側延伸領域２０１３は、延伸前と比較した場合に１．８倍に延伸できる。 As shown in FIG. 37, the stretching device 2030 that forms the crotch-side stretching region 2013 has a pair of stretching blade rows 2031 that face each other and can be engaged with each other. Each stretched blade row portion 2031 has a blade depth of 2.5 mm, a pitch between a pair of blades of 1.25 mm, and a number of blades of 17. The stretching apparatus 2030 performs a stretching process by setting the set temperature of the stretching blade row portion 2031 to 100 ° C. By stretching in this way, the crotch-side stretch region 2013 can be stretched 1.8 times as compared with before stretching.
　延伸装置２０３０で延伸することによって、股下側延伸領域２０１３には延伸量が小さい密部と延伸量が大きい粗部とがサイドフラップ部２０１０の幅方向Ｗに交互に設けられる。 By stretching with the stretching device 2030, the crotch-side stretched region 2013 is alternately provided with a dense portion with a small stretch amount and a rough portion with a large stretch amount in the width direction W of the side flap portion 2010.
　延伸量は、上記した緒条件を適宜変更することによって可変できる。サイドフラップ部２０１０の股下領域Ｓ２２の中央を外側に引っ張る前（図３８（ａ）の股下側延伸領域２０１３の幅Ｗ２１に対して、図３８（ｂ）の幅Ｗ２２が、１．５～３．０倍の範囲にある。 The stretching amount can be varied by appropriately changing the above-mentioned conditions. Before the center of the crotch region S22 of the side flap portion 2010 is pulled outward (the width W21 of the crotch-side stretched region 2013 in FIG. 38 (a) is 1.5-3. It is in the range of 0 times.
　なお、幅Ｗ２２は、一方のサイドフラップ部２０１０の股下領域Ｓ２２の中央の端部を外側に引っ張った状態の股下側延伸領域２０１３の幅である。つまり、幅Ｗ２２が、幅Ｗ２１に対して延伸割合（１．５～３．０倍）だけ伸張可能となる。従って、各サイドフラップ部２０１０の股下領域Ｓ２２は、背側領域Ｓ２１や腹側領域Ｓ２３の幅寸法に比べて延伸割合（１．５～３．０倍）分だけ最大で伸張可能となる。 The width W22 is the width of the crotch-side stretched region 2013 in a state in which the center end of the crotch region S22 of one side flap portion 2010 is pulled outward. That is, the width W22 can be stretched by a stretch ratio (1.5 to 3.0 times) with respect to the width W21. Accordingly, the crotch region S22 of each side flap portion 2010 can be expanded at the maximum by the stretch ratio (1.5 to 3.0 times) compared to the width dimension of the back region S21 and the ventral region S23.
　外部から内部が透過する透過率は、サイドフラップ部２０１０のシート素材の種類によって異なるため、シート素材の種類によって延伸量を調整し、外部から内部が透過する透過率を得る。 Since the transmittance that the inside transmits from the outside varies depending on the type of the sheet material of the side flap portion 2010, the stretching amount is adjusted depending on the type of the sheet material, and the transmittance that the inside transmits from the outside is obtained.
　上記構成のオムツ２００１Ａを着用者が着用すると、図３６に示すように、各サイドフラップ部２０１０の外周が各弾性部材２０１２ａ、２０１２ｂの収縮によって着用者の足回りに密着する。また、各サイドフラップ部２０１０の股下領域Ｓ２２の伸張可能な幅寸法が、一対の股下側延伸領域２０１３によって背側領域Ｓ２１や腹側領域Ｓ２３のサイドフラップ部２０１０の幅寸法より大きいため、着用者の股下側に空間、いわゆるポケットＰができる。 When the wearer wears the diaper 2001A having the above-described configuration, as shown in FIG. 36, the outer periphery of each side flap portion 2010 is brought into close contact with the wearer's legs due to contraction of the elastic members 2012a and 2012b. Moreover, since the stretchable width dimension of the crotch region S22 of each side flap part 2010 is larger than the width dimension of the side flap part 2010 of the back side region S21 or the abdominal side region S23 by the pair of crotch side stretched regions 2013, the wearer A space, so-called pocket P, is formed on the crotch side.
　各股下側延伸領域２０１３は、各サイドフラップ部２０１０の股下領域Ｓ２２を幅方向Ｗに延伸させて形成される。このため、各股下側延伸領域２０１３は、股下領域Ｓ２２にいわゆるポケットＰを形成しないオムツと同じ幅の資材で形成できる。 Each crotch side extension region 2013 is formed by extending the crotch region S22 of each side flap portion 2010 in the width direction W. For this reason, each crotch side extension area | region 2013 can be formed with the material of the same width as the diaper which does not form what is called a pocket P in crotch area S22.
　また、オムツ２００１Ａは、従来例のように、各サイドフラップ部２０１０に折り返しを設けることなく、又、他の従来例のように、各サイドフラップ部２０１０に弾性部材２０１２を曲線状に設けることなく、着用者の股下側にポケットＰを形成できる。以上より、オムツ２００１Ａは、使用資材の低減化、製造時の加工の容易化、ひいては製造コストの低下を図ることができる。 Moreover, the diaper 2001A does not provide the side flaps 2010 with the folding as in the conventional example, and does not provide the elastic members 2012 in the curved shape in the side flaps 2010 as in the other conventional examples. The pocket P can be formed on the crotch side of the wearer. As described above, the diaper 2001A can reduce the amount of materials used, facilitate the processing during manufacturing, and thus reduce the manufacturing cost.
　また、オムツ２００１Ａは、着用者の股下近くの足回りを覆う各サイドフラップ部２０１０の箇所が薄く柔らかい股下側延伸領域２０１３であるため、オムツ２００１Ａにおいて、装着違和感を低減できる、着用者の足の運動に対する追従性を向上できる、吸収性本体２００２に対して立ち上がり易い、各サイドフラップ部２０１０の外周を締め付け過ぎることなく、足回りに密着させることができる等の利点がある。 Moreover, since the location of each side flap part 2010 which covers the circumference | surroundings near a wearer's inseam is thin and soft crotch side extending | stretching area | region 2013, the diaper 2001A can reduce wearing discomfort in the diaper 2001A. There are advantages such as being able to improve the followability to movement, being easy to stand up with respect to the absorbent main body 2002, and being able to adhere to the suspension without overtightening the outer periphery of each side flap portion 2010.
　この実施形態では、各股下側延伸領域２０１３は、吸収性本体２００２側縁と最も外側に位置する弾性部材２０１２ａの間の幅方向Ｗに二等分する中心線より吸収性本体２００２側の領域にも設けられているため、次のような利点もある。オムツ２００１Ａを着用した場合には、剛性差のある位置、つまり、吸収性本体２００２とサイドフラップ部２０１０の境界位置より曲がり始めるが、この実施形態ではこの箇所が柔軟性のある股下側延伸領域２０１３とされているため立ち上がり特性が良く、いわゆるポケットＰが形成され易い。 In this embodiment, each crotch-side stretched region 2013 is located in a region closer to the absorbent main body 2002 than a center line that bisects in the width direction W between the absorbent main body 2002 side edge and the outermost elastic member 2012a. Is also provided, and has the following advantages. When the diaper 2001A is worn, it begins to bend from a position having a difference in rigidity, that is, a boundary position between the absorbent main body 2002 and the side flap portion 2010. In this embodiment, this portion is a flexible crotch-side stretch region 2013. Therefore, the rising characteristics are good, and so-called pockets P are easily formed.
　この実施形態では、オムツ２００１Ａは、一対のサイドフラップ部２０１０の背側領域Ｓ２１と腹側領域Ｓ２３の両側より張り出すように設けられた背側ウエストフラップ部２０２０及び腹側ウエストフラップ部２０２１を有する。そして、各股下側延伸領域２０１３は、股下領域Ｓ２２の範囲内にのみ設けられている。従って、オムツ２００１Ａを背側ウエストフラップ部２０２０及び腹側ウエストフラップ部２０２１を利用して着用する際、背側ウエストフラップ部２０２０及び腹側ウエストフラップ部２０２１の締め付け力は、股下側延伸領域２０１３に直接に作用しないため、オムツ２００１Ａの股下領域Ｓ２２のポケット形成に支障がなく、又、オムツ２００１Ａの強度低下も招来しない。 In this embodiment, the diaper 2001A includes a dorsal waist flap portion 2020 and an abdominal waist flap portion 2021 provided so as to protrude from both sides of the dorsal region S21 and ventral region S23 of the pair of side flap portions 2010. And each crotch side extending | stretching area | region 2013 is provided only in the range of crotch area | region S22. Therefore, when the diaper 2001A is worn using the back side waist flap part 2020 and the abdominal side waist flap part 2021, the tightening force of the back side waist flap part 2020 and the abdominal side waist flap part 2021 is applied to the crotch side stretch region 2013. Since it does not act directly, there is no hindrance to the pocket formation in the crotch region S22 of the diaper 2001A, and the strength of the diaper 2001A is not reduced.
　この実施形態では、各股下側延伸領域２０１３は、装着時に外部から内部の排泄物が視認できる透明度を有するので、オムツ２００１Ａは、股下側延伸領域２０１３を通してオムツ２００１Ａの内部の排泄物の有無を外側から確認できる。このため、オムツ２００１Ａは、交換時期等を容易に判断できる。 In this embodiment, since each crotch-side stretch region 2013 has transparency that allows internal excrement to be visually recognized from the outside when worn, the diaper 2001A can check whether or not there is excrement inside the diaper 2001A through the crotch-side stretch region 2013. It can be confirmed from. For this reason, the diaper 2001A can easily determine the replacement time and the like.
　この実施形態では、各股下側延伸領域２０１３には、サイドフラップ部２０１０の幅方向Ｗに沿って延伸量が小さい密部と、延伸量が大きい粗部と、が交互に設けられている。従って、オムツ２００１Ａの製造過程では、股下側延伸領域２０１３が密部と粗部によって交互に折り畳まれるため、各サイドフラップ部２０１０の外縁が突出せずに直線状となる。このため、オムツ２００１Ａは、製造過程、製品パッケージング過程等での取り扱い性が良い。 In this embodiment, in each crotch-side stretch region 2013, a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided along the width direction W of the side flap portion 2010. Therefore, in the manufacturing process of the diaper 2001A, the crotch-side stretched region 2013 is alternately folded by the dense portion and the rough portion, so that the outer edge of each side flap portion 2010 does not protrude and becomes linear. For this reason, the diaper 2001A has good handleability in the manufacturing process, product packaging process, and the like.
　この実施形態では、各股下側延伸領域２０１３は、延伸前と比較した場合に１．５～３．０倍の範囲で延伸されている。ここで、股下側延伸領域２０１３の延伸量が、１．５倍未満であると、サイドフラップ部２０１０の立ち上がり寸法が小さくて弾性部材２０１２が肌に密着しない恐れがある。又、股下側延伸領域２０１３の延伸量が、３．０倍を越すと、サイドフラップ部２０１０の素材に対して延伸によるダメージが大きくて破れや穴あき等の資材破損が発生する恐れがある。 In this embodiment, each crotch-side stretch region 2013 is stretched in a range of 1.5 to 3.0 times as compared with that before stretching. Here, if the stretch amount of the crotch side stretch region 2013 is less than 1.5 times, the rising dimension of the side flap portion 2010 is so small that the elastic member 2012 may not adhere to the skin. Moreover, if the stretch amount of the crotch side stretch region 2013 exceeds 3.0 times, the material of the side flap portion 2010 is greatly damaged by stretching, and material damage such as tearing or perforation may occur.
　そのため、股下側延伸領域２０１３の延伸量を１．５～３．０倍の範囲にすれば、オムツ２００１Ａの股下領域Ｓ２２に空間、いわゆるポケットを資材破損の恐れもなく確実に形成できる。 Therefore, if the stretch amount of the crotch side stretch region 2013 is in the range of 1.5 to 3.0 times, a space, so-called pocket, can be reliably formed in the crotch region S22 of the diaper 2001A without fear of material damage.
（第３－１実施形態の各変形例）
　第３―１実施形態では、サイドフラップ部２０１０は、外装シート２０１１とバックシート２００４の２層から構成されているが、各サイドフラップ部２０１０は、バックシート２００４の１層で構成しても良い。サイドフラップ部２０１０は、外装シート２０１１の１層で構成すれば、外装シート２０１１の使用量を削減できる。 (Variations of Embodiment 3-1)
In the third to third embodiments, the side flap portion 2010 is configured by two layers of the exterior sheet 2011 and the backsheet 2004. However, each side flap portion 2010 may be configured by one layer of the backsheet 2004. . If the side flap part 2010 is comprised by 1 layer of the exterior sheet | seat 2011, the usage-amount of the exterior sheet | seat 2011 can be reduced.
　また、サイドフラップ部２０１０は、外装シート２０１１とバックシート２００４とトップシート２００３との３層で構成しても良い。サイドフラップ部２０１０は、外装シート２０１１とバックシート２００４とトップシート２００３の３層で構成すれば、各サイドフラップ部２０１０の股下側延伸領域２０１３の強度を強くできる。 Further, the side flap portion 2010 may be configured by three layers of an exterior sheet 2011, a back sheet 2004, and a top sheet 2003. If the side flap part 2010 is comprised by three layers, the exterior sheet 2011, the back sheet 2004, and the top sheet 2003, the intensity | strength of the crotch side extension area | region 2013 of each side flap part 2010 can be strengthened.
　バックシート２００４として、股下側延伸領域２０１３に相当する箇所とそれ以外の箇所では、異なるシート素材から成るものを使用しても良い。例えば、股下側延伸領域２０１３の箇所では、延伸加工に適したシート素材を使用し、その以外の箇所では、吸収性本体２００２のバックシートとして適したシート素材を使用すれば、延伸加工性と液不透過性の両方に優れたバックシート２００４となる。 As the back sheet 2004, a sheet made of a different sheet material may be used at a position corresponding to the crotch-side stretch region 2013 and other positions. For example, if a sheet material suitable for stretching is used at the crotch stretch region 2013 and a sheet material suitable as a back sheet for the absorbent main body 2002 is used at other locations, the stretch processability and liquid The back sheet 2004 is excellent in both impermeability.
（第３－２実施形態）
　図３９は、本発明の第３－２実施形態に係るオムツ２００１Ｂの断面図である。 (Third embodiment)
FIG. 39 is a cross-sectional view of a diaper 2001B according to Embodiment 3-2 of the present invention.
　図３９に示すように、この第３－２実施形態に係るオムツ２００１Ｂは、前記第３－１実施形態に比べて、吸収性本体２００２の構成と各サイドフラップ部２０１０の股下側延伸領域２０１３ａの構成が異なる。つまり、吸収性本体２００２のトップシート２００３とバックシート２００４は、幅方向Ｗの中央箇所のみが接合部２００６によって接合され、幅方向Ｗの両端部では接合されていない。そして、各股下側延伸領域２０１３ａは、吸収性本体２００２と重なる領域（接合されていない箇所）まで延在して設けられている。 As shown in FIG. 39, the diaper 2001B according to the third-second embodiment is different from the third-first embodiment in the configuration of the absorbent main body 2002 and the crotch-side stretch region 2013a of each side flap portion 2010. The configuration is different. That is, the top sheet 2003 and the back sheet 2004 of the absorbent main body 2002 are joined only at the central portion in the width direction W by the joint portion 2006 and are not joined at both end portions in the width direction W. And each crotch side extending | stretching area | region 2013a is extended and provided to the area | region (location | part which is not joined) which overlaps with the absorptive main body 2002. As shown in FIG.
　他の構成は、前記第３－１実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 Since other configurations are the same as those of the above-described embodiment 3-1, the redundant description is omitted and the same components in the drawings are denoted by the same reference numerals for clarification.
　この実施形態では、各股下側延伸領域２０１３ａは、吸収性本体２００２と重なる領域まで延在して設けられているので、股下側延伸領域２０１３ａの幅寸法を大きく取ることができるため、オムツ２００１Ｂは、オムツ１Ｄの股下側に形成される空間、いわゆるポケットの深さを深くできる。 In this embodiment, each crotch-side stretch region 2013a is provided so as to extend to a region overlapping with the absorbent main body 2002. Therefore, since the width dimension of the crotch-side stretch region 2013a can be increased, the diaper 2001B is The space formed on the crotch side of the diaper 1D, that is, the so-called pocket can be deepened.
（第３－３実施形態）
　図４０は、本発明の第３－３実施形態に係るオムツ２００１Ｃの断面図である。 (3-3 embodiment)
FIG. 40 is a cross-sectional view of a diaper 2001C according to Embodiment 3-3 of the present invention.
　図４０に示すように、この第３－３実施形態に係るオムツ２００１Ｃは、前記第３－１実施形態に比べて、各サイドフラップ部２０１０の構成のみが異なる。各サイドフラップ部２０１０は、サイドフラップ部２０１０の幅方向Ｗの外側で内側フラップ部２０１０ａと外側フラップ部２０１０ｂとの２つに分岐されている。内側フラップ部２０１０ａには、肌触りの良いシート素材が使用されている。内側フラップ部２０１０ａ及び外側フラップ部２０１０ｂの双方の先端部には、伸張状態で弾性部材２０１２ａ、２０１２ｂ、２０１２ｃ、２０１２ｅがそれぞれ設けられている。つまり、オムツ２００１Ｃを着用時には、足回りに２重にサイドフラップ部２０１０が密着するため、オムツ２００１Ｃは、横漏れをより確実に防止できる。オムツ２００１Ｃは、内側フラップ部２０１０ａが肌触りの良いシート素材であるため、肌触り性も良い。 As shown in FIG. 40, the diaper 2001C according to the 3-3 embodiment is different from the 3-1 embodiment only in the configuration of each side flap portion 2010. Each side flap portion 2010 is branched into two, an inner flap portion 2010a and an outer flap portion 2010b, outside the side flap portion 2010 in the width direction W. A sheet material having a good touch is used for the inner flap portion 2010a. Elastic members 2012a, 2012b, 2012c, and 2012e are provided at the distal ends of both the inner flap portion 2010a and the outer flap portion 2010b in an expanded state. That is, when the diaper 2001C is worn, since the side flaps 2010 are in close contact with the suspension, the diaper 2001C can more reliably prevent side leakage. The diaper 2001C has good touch because the inner flap portion 2010a is a sheet material with a good touch.
　他の構成は、前記第３－１実施形態と同一であるため、重複説明を省略すると共に図面の同一構成箇所には同一符号を付して明確化を図る。 Since other configurations are the same as those of the above-described embodiment 3-1, the redundant description is omitted and the same components in the drawings are denoted by the same reference numerals for clarification.
（第３－３実施形態の変形例）
　第３－３実施形態では、内側フラップ部２０１０ａ及び外側フラップ部２０１０ｂの双方の先端部に弾性部材２０１２ａ、２０１２ｂ、２０１２ｃ、２０１２ｅが設けられているが、オムツ２００１Ｃは、内側フラップ部２０１０ａの先端部にのみ伸張状態の弾性部材を設けても良い。この場合、オムツ２００１Ｃは、いわゆる内倒しの立体ギャザー構成となる。 (Modification of Embodiment 3-3)
In the third to third embodiments, the elastic members 2012a, 2012b, 2012c, and 2012e are provided at the distal ends of both the inner flap portion 2010a and the outer flap portion 2010b. An elastic member in an extended state may be provided only on the top. In this case, the diaper 2001C has a so-called inversion solid gathering configuration.
（第３－４実施形態）
　図４１は、本発明の第３－４実施形態に係るオムツ２００１Ｄの展開状態の平面図である。 (3-4 embodiment)
FIG. 41 is a plan view showing a developed state of a diaper 2001D according to the third to fourth embodiments of the present invention.
　図４１に示すように、この第３－４実施形態に係るオムツ２００１Ｄは、前記第３－１実施形態に比べて、各股下側延伸領域２０１３ｂの構成のみが異なる。各股下側延伸領域２０１３ｂは、股下領域での長手方向Ｌの中心位置における延伸領域部が、各サイドフラップ部２０１０の長手方向両端の延伸領域部に比べて、幅方向Ｗに引き延ばした際の幅寸法が大きくなるよう設けられている。これは、股下側延伸領域２０１３ｂは、長手方向Ｌにわたって、延伸加工が施された幅寸法が異なっているためである。具体的には、長手方向Ｌの中心位置における延伸領域部の幅寸法が、長手方向両端の延伸領域部の幅寸法に比べて長く設定されている。 As shown in FIG. 41, the diaper 2001D according to the third to fourth embodiments is different from the third to first embodiments only in the configuration of each crotch-side stretch region 2013b. Each crotch-side stretch region 2013b has a width when the stretch region portion at the center position in the longitudinal direction L in the crotch region is stretched in the width direction W as compared to the stretch region portions at both ends in the longitudinal direction of each side flap portion 2010. It is provided to increase the dimensions. This is because the crotch-side stretched region 2013b has a width dimension that is stretched in the longitudinal direction L. Specifically, the width dimension of the extending region at the center position in the longitudinal direction L is set longer than the width of the extending region at both ends in the longitudinal direction.
　オムツ２００１Ｄによれば、股下側延伸領域２０１３ｂの端部は、股下側延伸領域２０１３ｂでない箇所に拘束されているため端部での立ち上がり寸法が小さく、中心部で最も立ち上がり寸法が大きいポケット形状となるため、ポケットを形成するに際して無駄のない股下側延伸領域２０１３ｂとすることができる。 According to the diaper 2001D, the end of the crotch-side stretched region 2013b is constrained to a location that is not the crotch-side stretched region 2013b, so that the rising dimension at the end is small and the pocket has the largest rising dimension at the center. Therefore, the crotch-side stretched region 2013b can be made lean when forming the pocket.
　また、股下側延伸領域２０１３ｂは、長手方向Ｌにわたって延伸加工が施された幅寸法を同じとし、単位長さ当たりの延伸量を異ならせることによって、長手方向Ｌの中心位置における延伸領域部が、長手方向両端の延伸領域部に比べて引き延ばした際（着用時）の幅寸法が大きくなるよう設けても良い。 Further, the crotch-side stretched region 2013b has the same width dimension that has been stretched over the longitudinal direction L, and by varying the stretch amount per unit length, the stretched region portion at the center position in the longitudinal direction L is You may provide so that the width dimension at the time of extending (at the time of wear) may become large compared with the extending | stretching area | region part of a longitudinal direction both ends.
（第３－５実施形態）
　図４２は、本発明の第４－５実施形態に係るオムツ２００１Ｅの断面図である。 (3-5 embodiment)
FIG. 42 is a cross-sectional view of a diaper 2001E according to Embodiment 4-5 of the present invention.
　図４２に示すように、この第３－５実施形態に係るオムツ２００１Ｅは、前記第３－１実施形態に比べて、一対の股下側延伸領域２０１３Ａの構成のみが異なる。各股下側延伸領域２０１３Ａは、各サイドフラップ部２０１０の股下領域Ｓ２２のみならず背側領域Ｓ２１と腹側領域Ｓ２３に共に延在して設けられている。但し、股下側延伸領域２０１３Ａの背側の端部及び腹側の端部は、サイドフラップ部２０１０の背側の端縁及び腹側の端縁にまで達していない。 As shown in FIG. 42, the diaper 2001E according to the third to fifth embodiments is different from the third to first embodiments only in the configuration of a pair of crotch-side stretch regions 2013A. Each crotch side extension region 2013A is provided to extend not only to the crotch region S22 of each side flap portion 2010 but also to the back side region S21 and the ventral side region S23. However, the back end and the abdominal end of the crotch-side stretch region 2013A do not reach the back end and the abdomen end of the side flap portion 2010.
　この実施形態によれば、オムツ２００１Ｅの内部に形成される空間、いわゆるポケットが股下領域Ｓ２２の他に背側領域Ｓ２１及び腹側領域Ｓ２３にも形成されるため、オムツ２００１Ｅは、排泄物を一時的に多量に保持でき、排泄物の横漏れをより確実に防止できる。特に、オムツ２００１Ｅは、便と尿の双方の横漏れ防止に有効である。 According to this embodiment, since a space formed inside the diaper 2001E, so-called pockets, are formed in the back side region S21 and the ventral region S23 in addition to the crotch region S22, the diaper 2001E temporarily stores the excrement. Therefore, a large amount of excrement can be prevented more reliably. In particular, the diaper 2001E is effective in preventing side leakage of both feces and urine.
（第３－５実施形態の各変形例）
　第３－５実施形態の変形例としては、各股下側延伸領域２０１３Ａを、各サイドフラップ部２０１０の股下領域Ｓ２２より背側領域Ｓ２１にのみ延在して設けたものが考えられる。この変形例によれば、オムツは、オムツの内部に形成される空間、いわゆるポケットが股下領域Ｓ２２の他に背側領域Ｓ２１にも形成されるため、特に、便の横漏れ防止に有効である。 (Variations of Embodiment 3-5)
As a modification of the third to fifth embodiments, it is conceivable that each crotch side extended region 2013A extends from the crotch region S22 of each side flap portion 2010 only to the back side region S21. According to this modification, the diaper is particularly effective in preventing lateral leakage of feces since a space formed inside the diaper, a so-called pocket, is also formed in the back region S21 in addition to the crotch region S22. .
　第３－５実施形態の他の変形例としては、各股下側延伸領域２０１３Ａを、各サイドフラップ部２０１０の股下領域Ｓ２２より腹側領域Ｓ２３にのみ延在して設けたものが考えられる。この他の変形例によれば、オムツは、オムツの内部に形成される空間、いわゆるポケットが股下領域Ｓ２２の他に腹側領域Ｓ２３にも形成されるため、特に、尿の横漏れ防止に有効である。 As another modified example of the third to fifth embodiments, it is conceivable that each crotch-side stretch region 2013A extends from the crotch region S22 of each side flap portion 2010 only to the ventral region S23. According to this other modification, the diaper has a space formed inside the diaper, so-called pockets, which are also formed in the ventral region S23 in addition to the crotch region S22. It is.
（その他）
　各実施形態では、各サイドフラップ部２０１０に４列の弾性部材２０１２ａ～２０１２ｄが設けられているが、弾性部材は、サイドフラップ部２０１０の側端部に１列又は２列だけ設けられても良い。弾性部材の本数及び配置位置は、適宜変更可能である。 (Other)
In each embodiment, four rows of elastic members 2012a to 2012d are provided in each side flap portion 2010. However, the elastic members may be provided in only one row or two rows at the side end portion of the side flap portion 2010. . The number and arrangement positions of the elastic members can be changed as appropriate.
　なお、各実施形態では、本発明をオープンタイプのオムツに適用した場合を示したが、パンツタイプのオムツにも同様に適用できる。又、本発明は、オムツ以外の吸収性物品にも適用可能である。 In each embodiment, the case where the present invention is applied to an open type diaper is shown, but the present invention can be applied to a pant type diaper in the same manner. Moreover, this invention is applicable also to absorbent articles other than a diaper.
　なお、日本国特許出願第２００８－０３７９１６号（２００８年２月１９日出願）の全内容が、参照により、本願明細書に組み込まれている。 Note that the entire content of Japanese Patent Application No. 2008-037916 (filed on Feb. 19, 2008) is incorporated herein by reference.
（第４－１実施形態）
［背景技術］
　この種の従来のオムツとしては、特開２００４-２９０４００公報に開示されたものが知られている。このオムツ３１００は、図４３に示すように、液透過性のトップシート３１０１ａと、液不透過性のバックシート（図示せず）と、トップシート３１０１ａとバックシートとの間に配置され、液体を吸収し保持する吸収体３１０１ｃとからなる吸収性物品本体３１０１を備えている。 (4-1 embodiment)
[Background technology]
As this type of conventional diaper, one disclosed in Japanese Patent Application Laid-Open No. 2004-290400 is known. As shown in FIG. 43, the diaper 3100 is disposed between a liquid-permeable top sheet 3101a, a liquid-impermeable back sheet (not shown), the top sheet 3101a, and the back sheet. An absorbent article main body 3101 including an absorbent body 3101c that absorbs and holds is provided.
　ここで、かかるオムツ３１００には、「背側（後側）Ｂａ」及び「腹側（前側）Ｆｒ」が決められている。背側Ｂａは、オムツ３１００が着用されている時に着用者の背側に来るサイドであり、腹側Ｆｒは、オムツ３１００が着用されている時に着用者の腹側に来るサイドである。 Here, in the diaper 3100, “back side (rear side) Ba” and “abdominal side (front side) Fr” are determined. The back side Ba is a side that comes to the back side of the wearer when the diaper 3100 is worn, and the ventral side Fr is a side that comes to the side of the wearer when the diaper 3100 is worn.
　また、かかるオムツ３１００には、背側Ｂａから腹側Ｆｒに向かう長手方向Ｌに沿って順に背側領域Ｓ１と股下領域Ｓ２と腹側領域Ｓ３とが設けられている。 Further, the diaper 3100 is provided with a back side region S1, a crotch region S2, and a ventral region S3 in order along the longitudinal direction L from the back side Ba to the ventral side Fr.
　吸収性物品本体３１０１は、着用者の背側から腹側に渡って、着用者の股下部分を全体的に覆うことができるように構成されている。 The absorbent article main body 3101 is configured to cover the entire crotch portion of the wearer from the wearer's back to the abdomen.
　吸収性物品本体３１０１の幅方向Ｗの両側には、トップシート３１０１ａ及びバックシートが延在されることによって、サイドフラップ部３１１０が設けられている。 The side flap part 3110 is provided in the both sides of the width direction W of the absorbent article main body 3101 by extending the top sheet 3101a and a back sheet.
　各サイドフラップ部３１１０には、吸収性物品本体３１０１の長手方向Ｌに、延伸状態で弾性部材３１１１が設けられている。 Each side flap portion 3110 is provided with an elastic member 3111 in the stretched state in the longitudinal direction L of the absorbent article main body 3101.
　各サイドフラップ部３１１０の背側領域Ｓ１には、一対のウエストフラップ部３１２０が設けられている。 A pair of waist flap portions 3120 are provided in the back region S1 of each side flap portion 3110.
　各ウエストフラップ部３１２０は、細長の帯状であり、着用者の胴回り方向に対応する方向（吸収性物品本体３１０１の幅方向Ｗ）に対して傾斜（約３０度）して設けられている。 Each waist flap part 3120 is an elongate strip | belt shape, and it inclines (about 30 degree | times) with respect to the direction (width direction W of the absorbent article main body 3101) corresponding to a wearer's trunk periphery direction.
　各ウエストフラップ部３１２０の端部には、係止部３１３０が取り付けられている。一方のウエストフラップ部３１２０の端部に取り付けられている係止部３１３０を、他方のウエストフラップ部３１２０に係止させることにより、オムツ３１００の着用者の胴回りへの着用が行われる。 A locking portion 3130 is attached to the end of each waist flap portion 3120. The diaper 3100 is worn around the waist of the wearer by locking the locking portion 3130 attached to the end of one waist flap portion 3120 to the other waist flap portion 3120.
　止着部３１４０は、吸収性物品本体３１０１の腹側領域Ｓ３に取り付けられている。かかる止着部３１４０を、着用者の胴回りに着用された状態のウエストフラップ部３１２０に、外側から止着させることにより、吸収性物品本体３１０１が、着用者の股下部分を覆うようになる。 The fastening part 3140 is attached to the ventral region S3 of the absorbent article main body 3101. The absorbent article main body 3101 covers the inseam of the wearer by causing the waist flap 3120 in a state worn around the waist of the wearer to be fastened from the outside.
　かかるオムツ３１００では、着用時には、着用者の胴回り方向に対して着用者の背側に傾斜させる方向に、一対のウエストフラップ部３１２０を配置することができるため、身体へのフィット性が高い。 In such a diaper 3100, when worn, the pair of waist flap portions 3120 can be disposed in a direction inclined to the wearer's back side with respect to the wearer's waistline direction, and thus the fit to the body is high.
　しかしながら、かかるオムツ３１００では、ウエストフラップ部３１２０を、着用者の胴回り方法に対応する方向（吸収性物品本体３１０１の幅方向Ｗ）に傾斜して配置する必要があるため、製造工程が複雑となり、又、使用資材が増加する問題がある。 However, in such a diaper 3100, since it is necessary to incline and arrange the waist flap part 3120 in the direction (width direction W of the absorbent article main body 3101) corresponding to a wearer's waistline method, a manufacturing process becomes complicated, In addition, there is a problem that the material used increases.
[発明の開示]
　そこで、本発明は、使用資材を増加させず、製造工程が面倒でなく、しかも、身体へのフィット性が高い吸収性物品を提供することを目的とする。 [Disclosure of the Invention]
Therefore, an object of the present invention is to provide an absorbent article that does not increase the amount of materials used, has a troublesome manufacturing process, and has high fit to the body.
　本発明の第１の特徴は、背側及び腹側が決められており、該背側から該腹側に向かう長手方向に沿って順に背側領域と股下領域と腹側領域とが設けられている吸収性物品であって、液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシートとの間に配置され、液体を吸収し保持する吸収体とを具備する吸収性物品本体と、前記吸収性物品本体の幅方向の両側において、前記長手方向に沿って、該吸収性物品本体の幅方向の外側に設けられている一対のサイドフラップ部と、前記背側領域において、前記一対のサイドフラップ部から前記吸収性物品本体の幅方向の外側に張り出すように設けられている一対のウエストフラップ部とを具備しており、前記一対のウエストフラップ部の各々には、胴回り延伸領域が設けられており、前記胴回り延伸領域の各々は、前記腹側の端部において前記吸収性物品本体の幅方向に延ばした寸法が、前記背側の端部において該吸収性物品本体の幅方向に延ばした寸法よりも大きくなるように形成されており、前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記腹側の端縁に達するように形成されていることを要旨とする。 The first feature of the present invention is that the dorsal side and the ventral side are determined, and the dorsal region, the crotch region, and the ventral region are provided in order along the longitudinal direction from the dorsal side to the ventral side. Absorbent comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber that is disposed between the top sheet and the back sheet and absorbs and holds liquid. An absorbent article body, a pair of side flap portions provided on the outer side in the width direction of the absorbent article body along the longitudinal direction on both sides in the width direction of the absorbent article body, and the back region A pair of waist flap portions provided so as to protrude from the pair of side flap portions to the outside in the width direction of the absorbent article main body, and each of the pair of waist flap portions includes , Waist extension Each of the waistline extending regions has a dimension extending in the width direction of the absorbent article body at the abdomen end, and the width of the absorbent article body at the back end. It is formed so that it may become larger than the dimension extended in the direction, and each of the above-mentioned waistline extension field is formed so that it may reach the above-mentioned ventral edge in each of a pair of above-mentioned waist flap parts And
　本発明の第１の特徴において、前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記背側の端縁には達しない範囲で設けられていてもよい。 In the first feature of the present invention, each of the waistline stretching regions may be provided in a range not reaching the dorsal side edge of each of the pair of waist flap portions.
　本発明の第１の特徴において、前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記背側の端縁にまで達する範囲で設けられていてもよい。 In the first feature of the present invention, each of the waistline extending regions may be provided in a range reaching the dorsal side edge of each of the pair of waist flap portions.
　本発明の第１の特徴において、前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々の根元位置に設けられていてもよい。 In the first feature of the present invention, each of the waistline stretching regions may be provided at a root position of each of the pair of waist flap portions.
　本発明の第１の特徴において、前記胴回り延伸領域の各々における前記腹側の端縁は、１.１～３.０倍の範囲で延伸されていてもよい。 In the first feature of the present invention, the ventral side edge of each of the waistline stretching regions may be stretched in a range of 1.1 to 3.0 times.
[発明を実施するための形態］
　図４４～図５０は、本発明の第４－１実施形態を示し、図４４は、オムツの展開状態の平面図を示し、図４５は、図４４のＡ－Ａ線断面図を示し、図４６は、図４４のＢ－Ｂ線断面図を示し、図４７は、図４４のＣ－Ｃ線断面図を示し、図４８は、延伸装置の要部断面図を示し、図４９は、延伸加工を行うための延伸装置３０３０、つまり胴回り延伸領域の延伸状態の平面図を示し、図５０は、オムツ１Ａの着用状態、つまりオムツの装着状態の側面図である。 [Mode for Carrying Out the Invention]
44 to 50 show a 4-1 embodiment of the present invention, FIG. 44 shows a plan view of the diaper in a developed state, FIG. 45 shows a cross-sectional view taken along line AA of FIG. 46 shows a cross-sectional view taken along the line BB of FIG. 44, FIG. 47 shows a cross-sectional view taken along the line CC of FIG. 44, FIG. 48 shows a cross-sectional view of the main part of the stretching apparatus, and FIG. FIG. 50 is a plan view of a stretching device 3030 for processing, that is, a stretched state of the waistline stretching region, and FIG. 50 is a side view of the diaper 1A in a worn state, that is, a diaper mounted state.
　図４４～図５０に示すように、吸収性物品であるオムツ３００１Ａは、吸収性物品本体３００２と、一対のサイドフラップ部３０１０と、一対の背側ウエストフラップ部（ウエストフラップ部）３０２０と、一対の腹側ウエストフラップ部３０２１とを備えている。 As shown in FIGS. 44 to 50, the diaper 3001A, which is an absorbent article, includes an absorbent article body 3002, a pair of side flap portions 3010, a pair of back side waist flap portions (waist flap portions) 3020, and a pair. The ventral side waist flap part 3021 is provided.
　図４４に示すように、かかるオムツ３００１Ａでは、背側Ｂａ及び腹側Ｆｒが決められており、背側Ｂａから腹側Ｆｒに向かう長手方向Ｌに沿って順に背側領域Ｓ１と股下領域Ｓ２と腹側領域Ｓ３とが設けられている。 As shown in FIG. 44, in the diaper 3001A, the back side Ba and the abdominal side Fr are determined, and the back side region S1, the crotch region S2, and the abdomen are sequentially arranged along the longitudinal direction L from the back side Ba to the abdominal side Fr. A side region S3 is provided.
　図４４に示すように、一対のサイドフラップ部３０１０は、吸収性物品本体３００２の幅方向Ｗの両側において、吸収性物品本体３００２の長手方向Ｌに沿って、吸収性物品本体３００２の幅方向Ｗの外側に設けられている。 As shown in FIG. 44, the pair of side flap portions 3010 are formed in the width direction W of the absorbent article main body 3002 along the longitudinal direction L of the absorbent article main body 3002 on both sides of the absorbent article main body 3002 in the width direction W. Is provided outside.
　また、一対の背側ウエストフラップ部３０２０は、背側領域Ｓ１において、一対のサイドフラップ部３０１０から吸収性物品本体３００２の幅方向Ｗの外側に張り出すように設けられている。 Further, the pair of back side waist flap portions 3020 are provided so as to protrude from the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002 in the back side region S1.
　さらに、一対の腹側ウエストフラップ部３０２１は、腹側領域Ｓ３において、一対のサイドフラップ部３０１０から吸収性物品本体３００２の幅方向Ｗの外側に張り出すように設けられている。 Furthermore, the pair of ventral side waist flap portions 3021 is provided so as to protrude from the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002 in the ventral side region S3.
　吸収性物品本体３００２は、液透過性のトップシート３００３と、液不透過性のバックシート３００４と、トップシート３００３とバックシート３００４との間に配置され、液体を吸収して保持する吸収体３００５とから少なくとも構成されている。 The absorbent article main body 3002 is disposed between the liquid-permeable top sheet 3003, the liquid-impermeable back sheet 3004, and the top sheet 3003 and the back sheet 3004, and absorbs and holds the liquid 3005. And at least.
　トップシート３００３は、親水性不織布、織布、開孔を有する疎水性不織布等により形成される。 The top sheet 3003 is formed of a hydrophilic nonwoven fabric, a woven fabric, a hydrophobic nonwoven fabric having openings, or the like.
　バックシート３００４は、液不透過性不織布、液不透過性フィルム、親水性不織布及び液不透過性フィルムを貼り合わせたシート等により形成される。本実施形態では、バックシート３００４は、液不透過性フィルム３００４ａと液不透過性不織布３００４ｂとを貼り合わせたものが使用されている。 The back sheet 3004 is formed of a liquid impermeable nonwoven fabric, a liquid impermeable film, a hydrophilic nonwoven fabric and a sheet obtained by bonding a liquid impermeable film. In the present embodiment, the back sheet 3004 is a laminate of a liquid impermeable film 3004a and a liquid impermeable nonwoven fabric 3004b.
　吸収体３００５は、吸収性のパルプ及び高吸収性ポリマーを混合した積層体が使用される。 As the absorbent body 3005, a laminated body in which absorbent pulp and a super absorbent polymer are mixed is used.
　一対のサイドフラップ部３０１０は、吸収性物品本体３００２の幅方向Ｗの両側から延在されたトップシート３００３とバックシート３００４によって形成されている。 The pair of side flap portions 3010 are formed by a top sheet 3003 and a back sheet 3004 extending from both sides of the absorbent article main body 3002 in the width direction W.
　一対のサイドフラップ部３０１０の少なくとも股下領域Ｓ２には、長手方向Ｌに沿って弾性部材３０１２が伸長状態で設けられている。 An elastic member 3012 is provided in an extended state along the longitudinal direction L in at least the crotch region S2 of the pair of side flap portions 3010.
　弾性部材３０１２は、４本のポリウレタン系弾性糸４７０ｄｔｅｘを、倍率２．２倍で伸長させたものが使用されている。 The elastic member 3012 is made of four polyurethane elastic yarns 470 dtex that are elongated at a magnification of 2.2 times.
　一対の背側ウエストフラップ部３０２０及び一対の腹側ウエストフラップ部３０２１は、着用者の胴回り方向に対応する方向（吸収性物品本体３０２の幅方向Ｗ）に延びている。 The pair of back waist flap portions 3020 and the pair of abdominal waist flap portions 3021 extend in a direction corresponding to the wearer's waistline direction (width direction W of the absorbent article main body 302).
　すなわち、一対の背側ウエストフラップ部３０２０は、一対のサイドフラップ部３０１０の背側領域Ｓ１から吸収性物品本体３００２の幅方向Ｗの外側に張り出すように設けられており、一対の腹側ウエストフラップ部３０２１は、一対のサイドフラップ部３０１０の腹側領域Ｓ３から吸収性物品本体３００２の幅方向Ｗの外側に張り出すように設けられている。 That is, the pair of back-side waist flap portions 3020 is provided so as to protrude from the back-side region S1 of the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002, and the pair of belly-side waists The flap portion 3021 is provided so as to protrude from the ventral region S3 of the pair of side flap portions 3010 to the outside in the width direction W of the absorbent article main body 3002.
　ここで、背側背側ウエストフラップ部３０２０及び腹側ウエストフラップ部３０２１は、液不透過性不織布によって形成されている。 Here, the back-side dorsal waist flap portion 3020 and the ventral-side waist flap portion 3021 are formed of a liquid-impermeable nonwoven fabric.
　この内、特に、一対の背側ウエストフラップ部３０２０は、液不透過性で且つ加熱延展性の不織布により形成されるものであり、本実施形態における一対の背側ウエストフラップ部３０２０は、ＳＭＳ１３ｇ/ｍ２のシート素材を２枚貼り合わせことにより形成されている（図４６参照）。 Among these, in particular, the pair of back side waist flap portions 3020 is formed of a liquid-impermeable and heat-extensible nonwoven fabric, and the pair of back side waist flap portions 3020 in the present embodiment includes an SMS 13 g / It is formed by bonding two sheet materials of m 2 (see FIG. 46).
　一対の背側ウエストフラップ部３０２０の先端側には、係止部３０２２が設けられている。 A locking portion 3022 is provided on the distal end side of the pair of back side waist flap portions 3020.
　係止部３０２２は、腹側ウエストフラップ部３０２１に係合するものであり、機械的な係止力で係止する面ファスナーや粘着力によって係止する粘着テープを用いることができる。 The locking portion 3022 engages with the ventral waist flap portion 3021, and a hook-and-loop fastener that locks with a mechanical locking force or an adhesive tape that locks with an adhesive force can be used.
　係止部３０２２を面ファスナーとする場合には、腹側ウエストフラップ部３０２１の素材は、少なくともその表面が不織布となっているシート材料が用いられる。 When the latching portion 3022 is a hook-and-loop fastener, the material of the ventral side waist flap portion 3021 is a sheet material having at least the surface of the nonwoven fabric.
　一対の背側ウエストフラップ部３０２０の各々には、胴回り延伸領域３０２３が形成されている。 A waistline extending region 3023 is formed in each of the pair of back waist flap portions 3020.
　胴回り延伸領域３０２３の各々は、サイドフラップ部３０１０の近傍、つまり、根元位置に設けられている。 Each of the waistline stretching regions 3023 is provided in the vicinity of the side flap portion 3010, that is, at the root position.
　また、胴回り延伸領域３０２３の各々は、腹側Ｆｒの端縁から吸収性物品本体３００２の長手方向Ｌに沿って延びるように形成される。 Further, each of the waistline stretching regions 3023 is formed to extend along the longitudinal direction L of the absorbent article main body 3002 from the edge of the ventral side Fr.
　胴回り延伸領域３０２３における背側Ｂａの端部は、各背側ウエストフラップ部３０２０における背側Ｂａの端縁の手前までであり、胴回り延伸領域３０２３が、各背側ウエストフラップ部３０２０における背側Ｂａの端縁に達していないため、各背側ウエストフラップ部３０２０における背側Ｂａの端縁周辺に、非延伸領域Ｆが存在する。 The end of the back side Ba in the waistline extending region 3023 is up to the front of the edge of the backside Ba in each backside waist flap portion 3020, and the waistline extending region 3023 is the back side Ba in each backside waist flap portion 3020. Therefore, the non-stretched region F exists around the edge of the back side Ba in each back side waist flap portion 3020.
　本実施形態において、胴回り延伸領域３０２３の長さは、１００ｍｍに設定され、非延伸領域Ｆの長さは、１０ｍｍに設定されている。 In the present embodiment, the length of the waistline stretching region 3023 is set to 100 mm, and the length of the non-stretching region F is set to 10 mm.
　胴回り延伸領域３０２３は、延伸加工によって他の領域より低秤量化された領域である。 The waistline stretching region 3023 is a region weighed lower than other regions by stretching.
　延伸加工によって形成された胴回り延伸領域３０２３は、図４６に示すように、サイドフラップ部３０１０の幅方向Ｗに沿って延伸量が小さい密部（符号を付さず）と延伸量が大きい粗部（符号を付さず）とが交互に設けられた構造となっている。 As shown in FIG. 46, the waistline stretching region 3023 formed by the stretching process includes a dense portion (not labeled) having a small stretch amount along the width direction W of the side flap portion 3010 and a rough portion having a large stretch amount. (Without reference numerals) are alternately provided.
　延伸加工は、胴回り延伸領域３０２３ｂにおける腹側Ｆｒの端部の幅方向Ｗに延ばした寸法が、胴回り延伸領域３０２３ｂにおける背側Ｂａの端部の幅方向Ｗに延ばした寸法よりも大きくなるように行われる。 In the stretching process, the dimension extending in the width direction W of the end portion of the belly side Fr in the waistline stretching region 3023b is larger than the dimension extending in the width direction W of the end portion of the back side Ba in the waistline stretching region 3023b. Done.
　このような延伸加工を行うことにより、着用者が、オムツ３００１Ａを着用したとき、背側ウエストフラップ部３０２０における背側Ｂａの延びが小さいのに対し、背側ウエストフラップ部３０２０における腹側Ｆｒの延びが大きいため、オムツ１Ａが、着用者の股下部分にフィットすることができる。 By performing such a stretching process, when the wearer wears the diaper 3001A, the back side Ba in the back side waist flap portion 3020 has a small extension, while the back side Fr in the back side waist flap portion 3020 Since extension is large, diaper 1A can fit a wearer's crotch part.
　図４８により、胴回り延伸領域３０２３について具体的に説明する。図４８において、Ｘは、延伸前における胴回り延伸領域３０２３の幅方向Ｗの寸法（すなわち、延伸量）であり、Ｙは、延伸によって伸長した胴回り延伸領域３０２３の幅方向Ｗの寸法（すなわち、延伸量）である。 48, the waistline stretching region 3023 will be specifically described. In FIG. 48, X is a dimension in the width direction W of the waistline stretching region 3023 (that is, a stretching amount) before stretching, and Y is a dimension in the width direction W of the waistline stretching region 3023 stretched by stretching (that is, stretching). Amount).
　上述したように、Ｘ＜Ｙに設定されるが、ＹとＸとの寸法差は、０.５～１０ｃｍとなるように設定することが好ましい。 As described above, X <Y is set, but it is preferable to set the dimensional difference between Y and X to be 0.5 to 10 cm.
　かかる寸法差が０.５ｃｍ未満の場合、ウエスト部分とヒップ部分との周長差が最小でも１ｃｍ以上ある子供に対しては、延伸前後の距離差が少なくなって、ウエスト部分とヒップ部分との周囲長のギャップを胴回り延伸領域２３の伸長距離で補うことができない。 If the dimensional difference is less than 0.5 cm, the difference in the distance before and after stretching is reduced for children with a circumference difference of 1 cm or more at the minimum between the waist and hip. The circumferential length gap cannot be compensated by the extension distance of the waistline stretching region 23.
　これにより、ウエスト部分に隙間が発生してフィット性が悪くなり、着用中にオムツがズレたり、排泄物の漏れの原因になる。 This will cause gaps in the waist, resulting in poor fit, causing the diaper to slip while wearing and cause excrement leakage.
　一方、かかる寸法差が１０ｃｍを越えると、ウエスト部分とヒップ部分との周長差が最大でも２０ｃｍ程度の大人に対しては、延伸部分と非延伸部分との距離差が大きいために、延伸により伸ばされたヒップ部分に隙間が発生してフィット性が悪くなる。これにより、着用中にオムツがズレたり、排泄物の漏れ発生の原因になる。 On the other hand, if this dimensional difference exceeds 10 cm, the maximum difference in circumference between the waist and hips is about 20 cm, and the distance between the stretched part and the non-stretched part is large. A gap is generated in the stretched hip portion, resulting in poor fit. This causes the diaper to shift during wearing or cause excrement leakage.
　図４９に示すように、延伸装置３０３０は、互いに対向し、且つ、噛み合い可能な一対の延伸刃列部３０３１を有する。 As shown in FIG. 49, the stretching device 3030 has a pair of stretching blade rows 3031 that face each other and can be engaged with each other.
　各延伸刃列部３０３１では、刃の深さが２ｍｍであり、一対の刃のピッチ間が１.２５ｍｍであり、刃数が１７本である。 In each extending blade row portion 3031, the blade depth is 2 mm, the pitch between the pair of blades is 1.25 mm, and the number of blades is 17.
　一対の背側ウエストフラップ部３０２０は、軟化点近辺の温度まで昇温された後、延伸刃列部３０３１の間に挿入され、延伸刃列部３０３１の設定温度を１００℃として延伸加工が施される。 The pair of back-side waist flap portions 3020 is heated to a temperature near the softening point, and then inserted between the extending blade row portions 3031. The set temperature of the extending blade row portion 3031 is set to 100 ° C. and subjected to drawing processing. The
　延伸刃列部３０３１を昇温させることにより、一対の背側ウエストフラップ部３０２０の資材が軟化点に近づくため、伸長し易くなって延伸加工による資材破損を軽減することができる。 By raising the temperature of the extending blade row portion 3031, the material of the pair of back side waist flap portions 3020 approaches the softening point, so that it is easy to extend and material damage due to the stretching process can be reduced.
　また、加工速度が大きくなることにより、一対の背側ウエストフラップ部３０２０の資材への刃からの加熱が十分でない場合は、延伸刃列部３０３１の手前で、予備加熱しても良い。 Further, when the processing speed is increased and the heating of the pair of back waist flap portions 3020 to the material from the blade is not sufficient, preliminary heating may be performed before the stretched blade row portion 3031.
　このような延伸装置３０３０で延伸することによって、一対の背側ウエストフラップ部３０２０において、延伸量が小さい密部及び延伸量が大きい粗部が幅方向Ｗに交互に設けられる。 By stretching with such a stretching device 3030, in the pair of back-side waist flap portions 3020, a dense portion having a small stretch amount and a rough portion having a large stretch amount are alternately provided in the width direction W.
　図５０に示すように、かかるオムツ３００１Ａは、一対の背側ウエストフラップ部３０２０の係止部３０２２を、一対の腹側ウエストフラップ部３０２１の表面に係止することにより着用状態となる。 As shown in FIG. 50, the diaper 3001A is put into a wearing state by locking the locking portions 3022 of the pair of back side waist flap portions 3020 to the surfaces of the pair of abdominal side waist flap portions 3021.
　着用者が、オムツ３００１Ａを着用すると、各サイドフラップ部３０１０の外周が、各弾性部材３０１２ａ～３０１２ｄの収縮によって着用者の足回りに密着する。 When the wearer wears the diaper 3001A, the outer periphery of each side flap portion 3010 is brought into close contact with the circumference of the wearer's legs due to the contraction of the elastic members 3012a to 3012d.
　一対の背側ウエストフラップ部３０２０においては、非延伸領域Ｆが、吸収性物品本体３１０１の幅方向Ｗに延びないが、胴回り延伸領域３０２３が、吸収性物品本体３１０１の幅方向Ｗに延びるため、上述したように、ＸとＹの寸法差が発生する。 In the pair of back side waist flap portions 3020, the non-stretched region F does not extend in the width direction W of the absorbent article main body 3101, but the waistline stretched region 3023 extends in the width direction W of the absorbent article main body 3101. As described above, a dimensional difference between X and Y occurs.
　このため、ウエスト周りだけでなく、ウエスト周りよりも大きな周囲長のヒップ周りにも良好にフィットすることができる。 For this reason, it is possible to fit well not only around the waist but also around the hip having a larger circumference than the waist.
　この場合、一対の背側ウエストフラップ部３０２０の胴回り延伸領域３０２３における腹側Ｆｒの端縁は、ヒップ部分を十分に包み込む大きさにできる点及び資材破損の恐れもない点を考慮した場合、１.１～３.０倍の範囲で延伸されることが好ましい。 In this case, in consideration of the fact that the edge of the abdominal side Fr in the waistline extending region 3023 of the pair of back waist flap portions 3020 can be sufficiently sized to wrap the hip portion and there is no risk of material damage. The film is preferably stretched in the range of 0.1 to 3.0 times.
　延伸量が１.１倍未満であると、一対の背側ウエストフラップ部３０２１の胴回り寸法が小さくてヒップ部分を十分に包み込むことができない恐れがあり、延伸量が３.０倍を越すと、延伸によるダメージが大きくて破れや穴あき等の資材破損が発生する恐れがあることによる。 If the stretch amount is less than 1.1 times, the waist size of the pair of back side waist flap portions 3021 may be small and the hip portion may not be sufficiently wrapped, and if the stretch amount exceeds 3.0 times, This is because damage due to stretching is so great that material damage such as tearing or perforation may occur.
　また、胴回り延伸領域３０２３における腹側Ｆｒの端縁は、ヒップ部分へのフィット性と資材破損の防止を配慮した場合、１.２～２.０倍の範囲で延伸されることが更に好ましい。 Further, it is more preferable that the edge of the ventral side Fr in the waistline stretching region 3023 is stretched in a range of 1.2 to 2.0 times in consideration of fit to the hip portion and prevention of material damage.
　また、各背側ウエストフラップ３０２０は、着用者の胴回り方向に対応する方向（吸収性物品本体２の幅方向Ｗ）に設けることができるため、使用資材を増加させることがなく、しかも製造工程が面倒となることがない。 Moreover, since each back side waist flap 3020 can be provided in the direction (width direction W of the absorbent article main body 2) corresponding to a wearer's waistline direction, it does not increase a use material and the manufacturing process is carried out. There is no trouble.
　本施形態では、一対の背側ウエストフラップ部３０２０は、胴回り延伸領域３０２３だけが延び、全体が伸長しないため、オムツ３００１Ａの着用時にも、着用前の胴回り寸法が維持され、オムツ３００１Ａがずれることがない。 In this embodiment, since only the waistline extending region 3023 extends and the whole does not extend in the pair of back side waist flap portions 3020, the waistline dimensions before wearing are maintained even when the diaper 3001A is worn, and the diaper 3001A is displaced. There is no.
　本実施形態では、一対の背側ウエストフラップ部３０２０の長手方向Ｌには、胴回り延伸領域３０２３以外の箇所（非延伸領域Ｆ）が存在するため、一対の背側ウエストフラップ部３０２１の強度の低下を極力防止できる。 In the present embodiment, since there is a portion (non-stretch region F) other than the waistline stretch region 3023 in the longitudinal direction L of the pair of back side waist flap portions 3020, the strength of the pair of back side waist flap portions 3021 is reduced. Can be prevented as much as possible.
　本実施形態では、一対の背側ウエストフラップ部３０２０の根本位置（サイドフラップ部３０１０の近傍）に胴回り延伸領域３０２３が設けられているので、一対の背側ウエストフラップ部３０２０における幅方向Ｗの先端における傾斜に対する変移量を大きく稼ぐことができるため、小さな幅の胴回り延伸領域３０２３の幅で所望の変移量とすることができる。 In the present embodiment, since the waistline extending region 3023 is provided at the root position of the pair of back side waist flap portions 3020 (in the vicinity of the side flap portion 3010), the front ends in the width direction W of the pair of back side waist flap portions 3020 Since the amount of change with respect to the inclination at can be greatly increased, the desired amount of change can be obtained with the width of the waistline stretching region 3023 having a small width.
　なお、一対の背側ウエストフラップ部３０２０の長手方向Ｌの寸法は、着用者の体型やオムツ全体の意匠性により決定される項目であるため、特に制約はないが、オムツ３００１Ａの着用時に、一対の背側ウエストフラップ部３０２０が伸長することにより生じるオムツ３００１Ａの幅方向Ｗの仮想線とのなす角は、０～３０°であることが好ましい。 In addition, since the dimension of the longitudinal direction L of a pair of back side waist flap part 3020 is an item determined by a wearer's body shape or the design nature of the whole diaper, there is no restriction | limiting in particular, When wearing diaper 3001A, The angle formed by the imaginary line in the width direction W of the diaper 3001A, which is generated when the back-side waist flap portion 3020 is extended, is preferably 0 to 30 °.
　かかる角度が、０°未満の場合には、ヒップ周りの距離よりもウエスト周りの距離が長くなるため、フィット性が得られず、かかる角度が、３０°を越える場合には、ウエスト周りの方向に背側ウエストフラップ部３０２０の張力がかかり難くなり、フィット性が低下するため好ましくない。 When the angle is less than 0 °, the distance around the waist becomes longer than the distance around the hip, so that fit cannot be obtained. When the angle exceeds 30 °, the direction around the waist This is not preferable because the tension of the back waist flap portion 3020 is difficult to be applied and the fit property is lowered.
　また、本実施形態では、一対の背側ウエストフラップ部３０２０及び一対の腹側ウエストフラップ部３０２１は、一対のサイドフラップ部３０１０と別部材にて構成したが、これらは、同一部材で構成されていてもよい。このように構成すれば、オムツ３００１Ａの製造を簡素化できる。 Moreover, in this embodiment, although a pair of back side waist flap part 3020 and a pair of abdominal side waist flap part 3021 comprised with a pair of side flap part 3010 and another member, these are comprised by the same member. May be. If comprised in this way, manufacture of diaper 3001A can be simplified.
（第４－２実施形態）
　図５１は、本発明の第４－２実施形態に係るオムツ３００１Ｂの平面図であり、図５１（ａ）は、着用前のオムツ３００１Ｂの平面図を示し、図５１（ｂ）は、着用後のオムツ３００１Ｂの平面図を示す。 (Embodiment 4-2)
51 is a plan view of a diaper 3001B according to a 4-2 embodiment of the present invention. FIG. 51 (a) shows a plan view of the diaper 3001B before wearing, and FIG. 51 (b) shows a state after wearing. The top view of diaper 3001B of is shown.
　第４－２実施形態に係るオムツ３００１Ｂは、第４－１実施形態に比べて、胴回り延伸領域３０２３が、各背側ウエストフラップ部３０２０の長手方向Ｌにおける両方の端縁まで形成されている。 In the diaper 3001B according to the 4-2 embodiment, the waistline extending region 3023 is formed up to both edges in the longitudinal direction L of each back waist flap portion 3020 as compared to the 4-1 embodiment.
　すなわち、胴回り延伸領域３０２３は、一対の背側ウエストフラップ部３０２０の全長にわたって形成されている。 That is, the waistline extending region 3023 is formed over the entire length of the pair of back waist flap portions 3020.
　また、胴回り延伸領域３０２３は、背側ウエストフラップ部３０２０の全長にわたって延伸加工が施された幅寸法が同じであるが、単位長さ当たりの延伸量が異なる。 Further, the waistline stretching region 3023 has the same width dimension that is stretched over the entire length of the back waist flap portion 3020, but the stretch amount per unit length is different.
　これによって、腹側Ｆｒにおける胴回り延伸領域部３０２３が、背側Ｂａにおける胴回り延伸領域部３０２３よりも、引き延ばした際（着用時）の幅寸法が大きくなるように構成されている。 Thus, the width dimension when the waistline extending region portion 3023 on the ventral side Fr is stretched (when worn) is larger than the waistline extending region portion 3023 on the back side Ba.
　つまり、図５１（ａ）に示すように、着用前の胴回り延伸領域３０２３の幅寸法は、Ｈ寸法であるが、図５１（ｂ）に示すように、着用後の背側Ｂａにおける胴回り延伸領域部３０２３がＩ寸法（Ｈ＜Ｉ）となり、着用後の腹側Ｆｒにおける胴回り延伸領域部３０２３がＪ寸法（Ｈ＜Ｊ、且つ、Ｉ＜Ｊ）となる。 That is, as shown in FIG. 51 (a), the width dimension of the waistline stretching region 3023 before wearing is the H dimension, but as shown in FIG. 51 (b), the waistline stretching region on the back side Ba after wearing. The portion 3023 has an I dimension (H <I), and the waistline extending region portion 3023 on the abdomen Fr after wearing has a J dimension (H <J and I <J).
　このような延伸量の関係とすることにより、第４－１実施形態と同様のフィット性を確保できる。 Such a relationship in the amount of stretching can ensure the same fit as that in the embodiment 4-1.
　本実施形態のオムツ３００１Ｂの製造における延伸加工は、背側Ｂａと腹側Ｆｒとの間で、延伸刃列部３０３１の刃の深さを変化させることにより可能である。 The stretching process in the manufacture of the diaper 3001B of the present embodiment is possible by changing the depth of the blade of the stretched blade row portion 3031 between the back side Ba and the ventral side Fr.
　他の構成は、第４－１実施形態と同一であるため、重複説明を省略すると共に図面の同一箇所には同一符号を付して明確化を図る。 Since other configurations are the same as those of the fourth to fourth embodiments, duplicate description is omitted and the same portions in the drawings are denoted by the same reference numerals for clarification.
　本実施形態では、胴回り延伸領域３０２３は、長手方向Ｌの延伸幅が同じであっても、胴回り延伸領域３０２３の端部は、胴回り延伸領域３０２３でない箇所に拘束されているため、端部での延伸量が小さく、端部より遠ざかると延伸量が大きくなる。 In the present embodiment, the waistline stretching region 3023 has the same stretching width in the longitudinal direction L, but the end of the waistline stretching region 3023 is constrained to a portion that is not the waistline stretching region 3023, so The stretching amount is small, and the stretching amount increases as the distance from the end increases.
　このため、傾斜形状を形成するに際して無駄のない胴回り延伸領域２３とすることができる。 Therefore, it is possible to make the waistline stretching region 23 without waste when forming the inclined shape.
（第４－３実施形態）
　図５２は、本発明の第４－３実施形態に係るオムツ３００１Ｃの平面図であり、図５２（ａ）は、着用前のオムツ３００１Ｂの平面図を示し、図５２（ｂ）は、着用後のオムツ３００１Ｂの平面図を示す。 (4-3 embodiment)
52 is a plan view of a diaper 3001C according to a fourth to third embodiment of the present invention. FIG. 52 (a) shows a plan view of a diaper 3001B before wearing, and FIG. 52 (b) shows a state after wearing. The top view of diaper 3001B of is shown.
　第４－３実施形態に係るオムツ３００１Ｃは、第４－２実施形態と同様に、胴回り延伸領域３０２３は、一対の背側ウエストフラップ部３０２０の全長にわたって形成されている。 In the diaper 3001C according to the 4-3 embodiment, the waistline extending region 3023 is formed over the entire length of the pair of back waist flap portions 3020, as in the 4-2 embodiment.
　本実施形態では、胴回り延伸領域３０２３は、一対の背側ウエストフラップ部３０２０の全長にわたって延伸加工が施された幅寸法が異なり、腹側Ｆｒにおける胴回り延伸領域部３０２３ａの幅寸法が大きく、背側Ｂａにおける胴回り延伸領域部３０２３ｂの幅寸法が小さく設定されている。 In the present embodiment, the waistline stretching region 3023 has a different width dimension that is stretched over the entire length of the pair of back side waist flap portions 3020, and the waistline stretching region portion 3023a on the abdominal side Fr has a large width dimension. The width dimension of the waistline extending region 3023b in Ba is set small.
　これによって、腹側Ｆｒにおける胴回り延伸領域部３０２３ａが、背側Ｂａにおける胴回り延伸領域部３０２３ｂよりも、引き延ばした際（着用時）の幅寸法が大きく設けられている。 This provides a larger width dimension when the waistline extending region portion 3023a on the ventral side Fr is stretched (when worn) than the waistline extending region portion 3023b on the back side Ba.
　つまり、図５２（ａ）に示すように、着用前の胴回り延伸領域３０２３の幅寸法は、Ｈ寸法であるが、図５２（ｂ）に示すように、着用後の背側Ｂａにおける胴回り延伸領域部３０２３ｂの幅がＩ寸法（Ｈ＜Ｉ）となり、着用後の腹側Ｆｒにおける胴回り延伸領域部３０２３ａの幅がＪ寸法（Ｈ＜Ｊ、且つ、Ｉ＜Ｊ）となる。 That is, as shown in FIG. 52A, the width dimension of the waistline stretching region 3023 before wearing is an H dimension, but as shown in FIG. 52B, the waistline stretching region on the back side Ba after wearing. The width of the portion 3023b is the I dimension (H <I), and the width of the waistline extending region 3023a on the abdomen Fr after wearing is the J dimension (H <J and I <J).
　このような延伸量の関係とすることにより、第４－１実施形態と同様のフィット性を確保できる。 Such a relationship in the amount of stretching can ensure the same fit as that in the embodiment 4-1.
　他の構成は、第４－２実施形態と同一であるため、重複説明を省略すると共に図面の同一箇所には同一符号を付して明確化を図る。 Other configurations are the same as those in the 4-2 embodiment, and therefore, redundant description is omitted and the same portions in the drawings are denoted by the same reference numerals for clarification.
　本実施形態では、一対の背側ウエストフラップ部３０２０における幅方向Ｗの先端における傾斜に対する変移量を大きく稼ぐことができるため、胴回り延伸領域３０２３の幅寸法や延伸程度等を極力小さくして所望の変移量とすることができる。 In the present embodiment, since the amount of change with respect to the inclination at the tip in the width direction W of the pair of back-side waist flap portions 3020 can be greatly increased, the width dimension, the degree of stretching, etc. of the waistline stretching region 3023 can be made as small as possible. It can be a shift amount.
（第４－４実施形態）
　図５３は、本発明の第４－４実施形態に係るオムツ３００１Ｄの平面図である。 (4-4 embodiment)
FIG. 53 is a plan view of a diaper 3001D according to Embodiment 4-4 of the present invention.
　第４－４実施形態に係るオムツ３００１Ｄは、ベルトタイプであり、一対の背側ウエストフラップ部３０２０が、吸収性物品本体３００２の長手方向Ｌと直交する方向（幅方向Ｗ）に長く延びるように設けられている。 The diaper 3001D according to the fourth to fourth embodiments is a belt type so that the pair of back waist flap portions 3020 extends long in a direction (width direction W) perpendicular to the longitudinal direction L of the absorbent article main body 3002. Is provided.
　一方の背側ウエストフラップ部３０２０には、係止部３０２２が設けられている。 The one back side waist flap part 3020 is provided with a locking part 3022.
　一対の腹側ウエストフラップ部３０２１も、吸収性物品本体３００２の幅方向Ｗに設けられており、その面には、係止部３０２４が設けられており、オムツ３００１Ｄの着用が可能となっている。 The pair of abdominal side waist flap portions 3021 is also provided in the width direction W of the absorbent article main body 3002, and a locking portion 3024 is provided on the surface thereof, so that the diaper 3001D can be worn. .
　本実施形態においても、各サイドフラップ部３０１０の外側に、胴回り延伸領域３０２３を設けることによりフィット性が向上する。 Also in the present embodiment, the fit is improved by providing the waistline stretching region 3023 outside the side flap portions 3010.
　なお、日本国特許出願第2008-037921号（2008年2月19日出願）、ＰＣＴ特許出願　PCT/JP2009/52646（2009年2月17日出願）の全内容が、参照により、本願明細書に組み込まれている。 The entire contents of Japanese Patent Application No. 2008-037921 (filed on February 19, 2008) and PCT Patent Application PCT / JP2009 / 52646 (filed on February 17, 2009) are incorporated herein by reference. It has been incorporated.
　以上のように、本発明に係る吸収性物品は、着用者にフィットさせることができる吸収性物品にあって、使用資材の低減化、製造時の加工の容易化等を図ることができる吸収性物品において有用である。 As described above, the absorbent article according to the present invention is an absorbent article that can be fitted to the wearer, and can reduce the amount of materials used, facilitate processing during manufacturing, and the like. Useful in articles.
　また、本発明に係る吸収性物品は、滲みや漏れを防止でき、しかも通気性が良好である。また、本発明に係る吸収性物品は、着用者の股下側にいわゆるポケットを形成するものにあって、使用資材の低減化、製造時の加工の容易化、ひいては製造コストの低下を図ることができる。このため、オムツ等の吸収性物品において有用である。 Moreover, the absorbent article according to the present invention can prevent bleeding and leakage, and has good air permeability. In addition, the absorbent article according to the present invention is to form a so-called pocket on the wearer's crotch side, and can reduce the amount of materials used, facilitate the processing during manufacture, and thus reduce the manufacturing cost. it can. For this reason, it is useful in absorbent articles such as diapers.
　さらに、本発明に係る吸収性物品によれば、製品製造時には、一対のウエストフラップ部を、着用者の胴回り方向に対応する方向（吸収性物品本体の幅方向Ｗ）に延設することができ、着用時には、各胴回り延伸領域によって、着用者の胴回り方向に対して着用者の背側に傾斜させる方向に一対のウエストフラップ部を配置することができる。 Furthermore, according to the absorbent article which concerns on this invention, a pair of waist flap part can be extended in the direction (width direction W of an absorbent article main body) corresponding to a wearer's trunk periphery direction at the time of product manufacture. When worn, a pair of waist flap portions can be arranged in a direction in which each waistline extending region is inclined toward the wearer's back side with respect to the wearer's waistline direction.
　従って、本発明によれば、使用資材を増加させず、製造工程が面倒でなく、しかも、身体へのフィット性が高い吸収性物品を提供できる。 Therefore, according to the present invention, it is possible to provide an absorbent article that does not increase the amount of materials used, has a troublesome manufacturing process, and is highly fit to the body.

Claims (37)

  1. 　液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシート間の間に配置され、液体を吸収し保持する吸収体とから少なくとも構成され、着用時には背側から腹側までの長手方向に背側領域、股下領域、腹側領域を有する吸収性本体と、
    　前記吸収性本体の幅方向の両側に設けられた左右一対のサイドフラップ部とを備えた吸収性物品において、
    　前記各サイドフラップ部の腹側領域には、胴回り方向に延伸された腹側延伸領域が設けられたことを特徴とする吸収性物品。     A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that is disposed between the top sheet and the back sheet and absorbs and holds the liquid. An absorbent body having a dorsal region, crotch region, ventral region in the longitudinal direction to the ventral side;
    In an absorbent article comprising a pair of left and right side flap portions provided on both sides in the width direction of the absorbent main body,
    An absorptive article, wherein a ventral region extending in a waistline direction is provided in a ventral region of each side flap portion.
  2. 　請求項１記載の吸収性物品であって、
    　前記腹側延伸領域は、腹側の端縁にまで達していることを特徴とする吸収性物品。     The absorbent article according to claim 1,
    The abdominal-side stretched region reaches an abdominal side edge.
  3. 　請求項１記載の吸収性物品であって、
    　前記各サイドフラップ部の股下領域には、長手方向に伸長状態で設けられた弾性部材がそれぞれ設けられ、
    　前記各腹側延伸領域は、前記吸収性本体と最も外側に位置する前記弾性部材との間に設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 1,
    In the crotch region of each side flap portion, an elastic member provided in a stretched state in the longitudinal direction is provided,
    Each said ventral | extended extending | stretching area | region was provided between the said absorptive main body and the said elastic member located in the outermost part, The absorbent article characterized by the above-mentioned.
  4. 　請求項１記載の吸収性物品であって、
    　前記各腹側延伸領域は、前記股下領域側が腹側の端縁側より引き延ばされた際の幅寸法が大きくなるよう設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 1,
    Each of the abdominal stretch regions is provided so that the width dimension when the crotch region side is extended from the end side on the abdomen side is increased.
  5. 　請求項１記載の吸収性物品であって、
    　前記各腹側延伸領域は、前記吸収性本体と重なる領域まで延在して設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 1,
    Each said ventral | extended extending | stretching area | region was extended and provided to the area | region which overlaps with the said absorptive main body, The absorbent article characterized by the above-mentioned.
  6. 　請求項１記載の吸収性物品であって、
    　前記各腹側延伸領域は、１．５～３．０倍の範囲で延伸されたことを特徴とする吸収性物品。     The absorbent article according to claim 1,
    Each of the ventral-side stretched regions is stretched in a range of 1.5 to 3.0 times.
  7. 　液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシート間の間に配置され、液体を吸収し保持する吸収体とから少なくとも構成され、着用時には背側から腹側までの長手方向に背側領域、股下領域、腹側領域を有する吸収性本体と、
    　前記吸収性本体の幅方向の両側に設けられた左右一対のサイドフラップ部とを備えた吸収性物品において、
    　前記各サイドフラップ部の背側領域には、胴回り方向に延伸された背側延伸領域がそれぞれ設けられたことを特徴とする吸収性物品。     A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that is disposed between the top sheet and the back sheet and absorbs and holds the liquid. An absorbent body having a dorsal region, crotch region, ventral region in the longitudinal direction to the ventral side;
    In an absorbent article comprising a pair of left and right side flap portions provided on both sides in the width direction of the absorbent main body,
    An absorbent article, wherein a back-side stretched region extending in a waistline direction is provided in a back-side region of each side flap portion.
  8. 　請求項７記載の吸収性物品であって、
    　前記背側延伸領域は、背側の端縁にまで達していることを特徴とする吸収性物品。     The absorbent article according to claim 7,
    The said back side extending | stretching area | region has reached even the edge of a back side, The absorbent article characterized by the above-mentioned.
  9. 　請求項７記載の吸収性物品であって、
    　前記各サイドフラップ部の少なくとも股下領域位置に、長手方向に伸長状態で設けられた弾性部材をそれぞれ有し、
    　前記各背側延伸領域は、前記吸収性本体と最も外側に位置する前記弾性部材との間に設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 7,
    At least at each crotch region position of each side flap portion has an elastic member provided in an elongated state in the longitudinal direction,
    Each said back side extending | stretching area | region was provided between the said absorptive main body and the said elastic member located in the outermost part, The absorbent article characterized by the above-mentioned.
  10. 　請求項７記載の吸収性物品であって、
    　前記各背側延伸領域は、股下領域側が背側の端縁側より引き延ばされた際の幅寸法が大きくなるよう設けられていることを特徴とする吸収性物品。     The absorbent article according to claim 7,
    Each said back side extending | stretching area | region is provided so that the width dimension when the crotch area side may be extended from the edge side of a back side may become large.
  11. 　請求項７記載の吸収性物品であって、
    　前記各背側延伸領域は、前記吸収性本体と重なる領域にまで延在して設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 7,
    Each said back side extending | stretching area | region was extended and provided to the area | region which overlaps with the said absorptive main body, The absorbent article characterized by the above-mentioned.
  12. 　　請求項７記載の吸収性物品であって、
    　前記各背側延伸領域は、１．５～３．０倍の範囲で延伸されたことを特徴とする吸収性物品。     The absorbent article according to claim 7,
    Each of the back stretched regions is stretched in a range of 1.5 to 3.0 times.
  13. 　請求項７記載の吸収性物品であって、
    　前記各サイドフラップ部の腹側領域には、胴回り方向に延伸された腹側延伸領域が設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 7,
    An absorptive article, wherein a ventral region extending in a waistline direction is provided in a ventral region of each side flap portion.
  14. 　請求項１又は請求項７記載の吸収性物品であって、
    　股下領域における前記サイドフラップ部の前記吸収性本体と最も外側に位置する前記弾性部材との間には、幅方向に延伸された股下側延伸領域が設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 1 or claim 7,
    An absorbent article characterized in that a crotch-side stretched region stretched in the width direction is provided between the absorbent main body of the side flap portion and the outermost elastic member in the crotch region.
  15. 　液透過性の表面シートと、液不透過性の裏面シートと、前記表面シートと前記裏面シートとの間に配置され、液体を吸収し保持する吸収体とから構成され、着用時には背側から腹側までの長手方向に背側領域、股下領域、腹側領域を有する吸収性本体と、
    　前記吸収性本体の幅方向の両側に設けられた左右一対のサイドフラップ部とを備えた吸収性物品であって、
    　前記吸収性本体の下面と前記サイドフラップ部に位置する前記裏面シートが連続した一体物で構成され、
    　前記サイドフラップ部の幅方向端縁と吸収体側縁との間で前記サイドフラップ部が前記吸収性本体の下面より透湿性を有する高透湿領域を有することを特徴とする吸収性物品。     It is composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that is disposed between the top sheet and the back sheet and absorbs and holds liquid. An absorbent body having a dorsal region, crotch region, ventral region in the longitudinal direction to the side;
    An absorbent article comprising a pair of left and right side flap portions provided on both sides in the width direction of the absorbent main body,
    The lower surface of the absorbent main body and the back sheet located on the side flap portion are constituted by a continuous unit,
    An absorbent article, wherein the side flap portion includes a highly moisture permeable region having moisture permeability from a lower surface of the absorbent main body between an end edge in the width direction of the side flap portion and an absorber side edge.
  16. 　請求項１５記載の吸収性物品であって、
    　前記裏面シートは、無機材料を充填材として含む樹脂からなる微多孔質の液不透過性フィルムからなり、
    　前記高透湿領域が前記液不透過性フィルムに形成されていることを特徴とする吸収性物品。     The absorbent article according to claim 15, wherein
    The back sheet is composed of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler,
    The absorbent article, wherein the highly moisture-permeable region is formed in the liquid-impermeable film.
  17. 　請求項１５記載の吸収性物品であって、
    　前記裏面シートは、液不透過性シートと外装シートとを接着して形成され、
    　前記液不透過性シートは、無機材料を充填材として含む樹脂からなる微多孔質の液不透過性フィルムからなり、
    　前記高透湿領域が前記液不透過性シート及び前記外装シートに形成されていることを特徴とする吸収性物品。     The absorbent article according to claim 15, wherein
    The back sheet is formed by adhering a liquid-impermeable sheet and an exterior sheet,
    The liquid-impermeable sheet is composed of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler,
    The absorbent article, wherein the highly moisture-permeable region is formed in the liquid-impermeable sheet and the exterior sheet.
  18. 　請求項１５記載の吸収性物品であって、
    　前記裏面シートは、液不透過性シートと外装シートとを接着して形成され、
    　前記液不透過性シートは、無機材料を充填材として含む樹脂からなる微多孔質の液不透過性フィルムからなり、
    　前記高透湿領域が前記液不透過性シートと、前記外装シートと、前記表面シートに形成されていることを特徴とする吸収性物品。     The absorbent article according to claim 15, wherein
    The back sheet is formed by adhering a liquid-impermeable sheet and an exterior sheet,
    The liquid-impermeable sheet is composed of a microporous liquid-impermeable film made of a resin containing an inorganic material as a filler,
    The absorbent article, wherein the highly moisture-permeable region is formed on the liquid-impermeable sheet, the exterior sheet, and the top sheet.
  19. 　請求項１５に記載の吸収性物品であって、
    　前記背側領域の前記サイドフラップ部の幅方向の両側には、該サイドフラップ部の両側縁からそれぞれ延設された左右一対のウエストフラップ部が形成され、
    　該ウエストフラップ部の幅方向の両側部には着用時に前記腹側領域の前記液不透過性の裏面シートに係合可能な一対の係止部材が設けられていることを特徴とする吸収性物品。     The absorbent article according to claim 15,
    On both sides in the width direction of the side flap portion in the back side region, a pair of left and right waist flap portions respectively extending from both side edges of the side flap portion are formed,
    A pair of locking members that can be engaged with the liquid-impermeable back sheet in the ventral region when worn on both side portions of the waist flap portion in the width direction are provided. .
  20. 　請求項１５に記載の吸収性物品であって、
    　前記サイドフラップ部に、前記吸収性本体の長手方向に沿って弾性部材が伸張状態で配置されていることを特徴とする吸収性物品。     The absorbent article according to claim 15,
    An absorbent article, wherein an elastic member is disposed in an extended state along the longitudinal direction of the absorbent main body in the side flap portion.
  21. 　請求項２０に記載の吸収性物品であって、
    　前記弾性部材が伸長状態で配置されたギャザー部は、前記サイドフラップ部の高透湿領域より透湿性を有していることを特徴とする吸収性物品。     The absorbent article according to claim 20, wherein
    The gathered part in which the elastic member is arranged in an extended state has moisture permeability from a highly moisture permeable region of the side flap part.
  22. 　請求項１５に記載の吸収性物品であって、
    　前記高透湿領域が、前記サイドフラップ部の幅方向端縁と前記吸収体側縁との間を幅方向外側に向けて延伸させて形成されていることを特徴とする吸収性物品。     The absorbent article according to claim 15,
    The absorbent article, wherein the highly moisture permeable region is formed by extending a width direction end edge of the side flap portion and the absorber side edge toward the width direction outer side.
  23. 　請求項１５に記載の吸収性物品であって、
    　前記高透湿領域の透湿度は、前記吸収性本体の下面側の透湿度に対して、１．３～２．５倍以上で、液体が漏れることのないように設定されていることを特徴とする吸収性物品。     The absorbent article according to claim 15,
    The moisture permeability of the high moisture permeability region is 1.3 to 2.5 times or more than the moisture permeability of the lower surface side of the absorbent main body, and is set so that the liquid does not leak. Absorbent article.
  24. 　液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシートの間に配置され、液体を吸収し保持する吸収体とから少なくとも構成され、着用時には背側から腹側までの長手方向に背側領域、股下領域、腹側領域を有する吸収性本体と、
    　前記吸収体本体の幅方向の両側に設けられた左右一対のサイドフラップ部と、
    　前記各サイドフラップ部の少なくとも股下領域に、長手方向に伸長状態で設けられた一対の弾性部材とを備えた吸収性物品において、
    　前記股下領域における前記サイドフラップ部の前記吸収性本体と最も外側に位置する前記弾性部材との間には、幅方向に延伸された股下側延伸領域が設けられたことを特徴とする吸収性物品。     It comprises at least a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber that is disposed between the top sheet and the back sheet and absorbs and holds liquid. An absorbent body having a dorsal region, crotch region, ventral region in the longitudinal direction to the side;
    A pair of left and right side flap portions provided on both sides of the absorbent body in the width direction;
    In an absorbent article comprising a pair of elastic members provided in a stretched state in the longitudinal direction at least in the crotch region of each side flap portion,
    An absorbent article characterized in that a crotch-side stretched region stretched in the width direction is provided between the absorbent main body of the side flap portion and the outermost elastic member in the crotch region. .
  25. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、前記吸収性本体側縁と最も外側に位置する前記弾性部材の間の幅方向に二等分する中心線より前記吸収性本体側の領域に設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each of the crotch-side stretched regions is provided in a region on the absorbent main body side from a center line that bisects the width direction between the absorbent main body side edge and the outermost elastic member. Absorbent article.
  26. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、各サイドフラップ部の前記背側領域と前記腹側領域の少なくともいずれか一方に前記股下領域から延在して設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each said crotch side extending | stretching area | region is extended and provided from the said crotch area | region in at least any one of the said back | dorsal area | region and said ventral | abdominal area | region of each side flap part, The absorbent article characterized by the above-mentioned.
  27. 　請求項２４に記載の吸収性物品であって、
    　前記一対のサイドフラップ部の前記背側領域と前記腹側領域の少なくとも一方から外側に張り出すように設けられたウエストフラップ部を有することを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    An absorbent article comprising a waist flap portion provided so as to project outward from at least one of the back side region and the ventral region of the pair of side flap portions.
  28. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、前記吸収性本体と重なる領域まで延在して設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each said crotch side extending | stretching area | region was extended and provided to the area | region which overlaps with the said absorptive main body, The absorbent article characterized by the above-mentioned.
  29. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、装着時に外部から内部の排泄物が視認できる透明度を有することを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each said crotch side extending | stretching area | region has transparency which the internal excrement can visually recognize from the exterior at the time of mounting | wearing, The absorbent article characterized by the above-mentioned.
  30. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、前記股下領域での長手方向の中心位置の延伸領域部が前記各サイドフラップ部の長手方向両端の延伸領域部より引き延ばした際の幅寸法が大きくなるよう設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each of the crotch-side stretched regions is provided such that the width dimension when the stretched region portion at the center in the longitudinal direction in the crotch region is extended from the stretched region portions at both ends in the longitudinal direction of the side flap portions is increased. An absorbent article characterized by the above.
  31. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、前記サイドフラップ部の幅方向に沿って延伸量が小さい密部と延伸量が大きい粗部とが交互に設けられたことを特徴とする吸収性物品。     The absorbent article according to claim 24, wherein
    Each said crotch side extending | stretching area | region is an absorbent article characterized by alternately providing the dense part with a small extending amount, and the rough part with a large extending amount along the width direction of the said side flap part.
  32. 　請求項２４に記載の吸収性物品であって、
    　前記各股下側延伸領域は、１．５～３．０倍の範囲で延伸されたことを特徴とする吸収性物品。
    The absorbent article according to claim 24, wherein
    Each of the crotch-side stretched regions is stretched in a range of 1.5 to 3.0 times.
  33. 　背側及び腹側が決められており、該背側から該腹側に向かう長手方向に沿って順に背側領域と股下領域と腹側領域とが設けられている吸収性物品であって、
    　液透過性のトップシートと、液不透過性のバックシートと、前記トップシートと前記バックシートとの間に配置され、液体を吸収し保持する吸収体とを具備する吸収性物品本体と、
    　前記吸収性物品本体の幅方向の両側において、かつ、両側端縁部周辺において、該吸収性物品本体の幅方向の外側に設けられている一対のサイドフラップ部と、
    　前記背側領域において、前記一対のサイドフラップ部から前記吸収性物品本体の幅方向の外側に張り出すように設けられている一対のウエストフラップ部とを具備しており、
    　前記一対のウエストフラップ部の各々には、胴回り延伸領域が設けられており、
    　前記胴回り延伸領域の各々は、前記腹側の端部において前記吸収性物品本体の幅方向に延ばした寸法が、前記背側の端部において該吸収性物品本体の幅方向に延ばした寸法よりも大きくなるように形成されており、
    　前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記腹側の端縁に達するように形成されていることを特徴とする吸収性物品。     The dorsal side and the ventral side are determined, an absorbent article provided with a dorsal region, a crotch region and a ventral region in order along the longitudinal direction from the dorsal side toward the ventral side,
    An absorbent article body comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that is disposed between the top sheet and the back sheet and absorbs and holds liquid;
    A pair of side flap portions provided on the outer sides in the width direction of the absorbent article main body on both sides in the width direction of the absorbent article main body, and around the edge portions on both sides;
    In the back side region, it comprises a pair of waist flap portions provided so as to protrude from the pair of side flap portions to the outside in the width direction of the absorbent article main body,
    Each of the pair of waist flap portions is provided with a waistline extending region,
    Each of the waistline stretching regions has a dimension that extends in the width direction of the absorbent article main body at the abdomen end, and a dimension that extends in the width direction of the absorbent article main body at the back end. Formed to be large,
    Each of said waistline extending | stretching area | regions is formed so that it may reach | attain the abdominal side edge in each of a pair of said waist flap part, The absorbent article characterized by the above-mentioned.
  34. 　請求項３３に記載の吸収性物品であって、
    　前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記背側の端縁には達しない範囲で設けられていることを特徴とする吸収性物品。     The absorbent article according to claim 33, wherein
    Each of said waistline extending | stretching area | regions is provided in the range which does not reach the said back edge in each of a pair of said waist flap part, The absorbent article characterized by the above-mentioned.
  35. 　請求項３３に記載の吸収性物品であって、
    　前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々における前記背側の端縁にまで達する範囲で設けられていることを特徴とする吸収性物品。     The absorbent article according to claim 33, wherein
    Each of said waistline extending | stretching area | regions is provided in the range which reaches to the said back edge in each of a pair of said waist flap part, The absorbent article characterized by the above-mentioned.
  36. 　請求項３３に記載の吸収性物品であって、
    　前記胴回り延伸領域の各々は、前記一対のウエストフラップ部の各々の根元位置に設けられていることを特徴とする吸収性物品。     The absorbent article according to claim 33, wherein
    Each of said waistline extending | stretching area | regions is provided in the root position of each of a pair of said waist flap part, The absorbent article characterized by the above-mentioned.
  37. 　請求項３３に記載の吸収性物品であって、
    　前記胴回り延伸領域の各々における前記腹側の端縁は、１.１～３.０倍の範囲で延伸されていることを特徴とする吸収性物品。     The absorbent article according to claim 33, wherein
    The absorbent article, wherein the ventral side edge of each of the waistline stretching regions is stretched in a range of 1.1 to 3.0 times.
PCT/JP2009/052872 2008-02-19 2009-02-19 Absorbent article WO2009104673A1 (en)

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MX2010009134A MX2010009134A (en) 2008-02-19 2009-02-19 Absorbent article.
CN2009801057555A CN101945631A (en) 2008-02-19 2009-02-19 Absorbent article
AU2009216183A AU2009216183A1 (en) 2008-02-19 2009-02-19 Absorbent article
CA2715999A CA2715999A1 (en) 2008-02-19 2009-02-19 Absorbent article
MA33182A MA32198B1 (en) 2008-02-19 2010-09-14 Absorbent material

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JP2008037921 2008-02-19
JP2008037919 2008-02-19
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JP2008-037916 2008-02-19
JP2008037916A JP5130075B2 (en) 2008-02-19 2008-02-19 Absorbent articles
JP2008-037922 2008-02-19
JP2008-037919 2008-02-19
JP2008-037921 2008-02-19
JP2008-093816 2008-03-31
JP2008093816A JP5379991B2 (en) 2008-03-31 2008-03-31 Absorbent articles
JP2009026246A JP5566612B2 (en) 2008-02-19 2009-02-06 Absorbent articles
JP2009-026255 2009-02-06
JP2009-026246 2009-02-06
JP2009026255A JP5566613B2 (en) 2008-02-19 2009-02-06 Absorbent articles
PCT/JP2009/052646 WO2009104581A1 (en) 2008-02-19 2009-02-17 Absorptive article
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