WO2014196663A1 - Couche-culotte jetable - Google Patents

Couche-culotte jetable Download PDF

Info

Publication number
WO2014196663A1
WO2014196663A1 PCT/JP2014/067222 JP2014067222W WO2014196663A1 WO 2014196663 A1 WO2014196663 A1 WO 2014196663A1 JP 2014067222 W JP2014067222 W JP 2014067222W WO 2014196663 A1 WO2014196663 A1 WO 2014196663A1
Authority
WO
WIPO (PCT)
Prior art keywords
longitudinal direction
stretchable
disposable diaper
crotch
product
Prior art date
Application number
PCT/JP2014/067222
Other languages
English (en)
Japanese (ja)
Inventor
坂口　智
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
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
Publication of WO2014196663A1 publication Critical patent/WO2014196663A1/fr

Links

Images

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

Definitions

  • the present invention relates to a disposable diaper.
  • Disposable diapers having an absorbent body, a top sheet disposed on the skin-facing surface side of the absorbent body, and a leg stretchable part that stretches in the product longitudinal direction outside the absorbent body in the product width direction are known. .
  • Patent Document 1 a technique is known in which a liquid-permeable auxiliary sheet is provided between the absorber and the top sheet in order to enhance the ability to take in and retain excretory fluid.
  • the disposable diaper described above has the following problems.
  • the auxiliary sheet of the disposable diaper of patent document 1 is extended to the front side from the crotch area located in a wearer's crotch. Therefore, when the disposable diaper absorbs the body fluid, the crotch region of the disposable diaper mainly hangs down due to the weight of the auxiliary sheet. When the auxiliary sheet hangs down, the disposable diaper is not arranged along the body, and there is a possibility that leakage of body fluid may occur.
  • the absorbent body of the disposable diaper of patent document 1 is applied with the force shrink
  • the absorber contracts, unintended wrinkles may be formed on the absorber, the top sheet, and the auxiliary sheet.
  • this invention is made
  • the purpose is to do.
  • a disposable diaper according to the present disclosure is located between a front waistline region (front waistline region 20), a rear waistline region (rear waistline region 30), and the front waistline region and the rear waistline region.
  • An absorbent body (absorbent body 40) having an inseam area (inseam area 25), extending over at least one of the front waistline area and the rear waistline area across the inseam area, and a skin facing surface than the absorbent body
  • a pair of fastening tapes (fastening tape 90) disposed at the outer end and fastened to the front waistline region, and target portions (target portions 95) disposed at the front waistline region and fastened to the pair of fastening tapes, respectively.
  • leg stretchable parts 75 formed along the periphery of the leg opening (leg opening 35) and extendable in the product longitudinal direction, and formed in the crotch region
  • a crotch expansion / contraction part (crotch expansion / contraction part 200) that can be expanded and contracted in the product longitudinal direction
  • product longitudinal direction L from the front waistline region to the rear waistline region and orthogonal to the product longitudinal direction
  • a disposable diaper having a product width direction (product width direction W), wherein the leg stretchable portion extends outward in the product width direction from the crotch stretchable portion and more outward in the product longitudinal direction than the crotch stretchable portion.
  • the front edge of the auxiliary sheet extends from the rear edge of the target part (rear edge 95R of the target part) in the product longitudinal direction.
  • the rear edge of the auxiliary sheet (the rear edge 55R of the auxiliary sheet) is located in the range up to the front edge of the part (front edge 75F of the leg elastic part). It is arranged in a range from the rear end edge (the rear end edge 200R of the crotch stretchable part) to the rear end edge of the leg stretchable part (the rear end edge 75R of the leg stretchable part).
  • FIG. 1 is a developed plan view of a disposable diaper 10 according to this embodiment.
  • FIG. 2 is a cross-sectional view of the disposable diaper 10 taken along line F1-F1 shown in FIG.
  • FIG. 3 is a cross-sectional view of the disposable diaper 10 taken along the line F2-F2 shown in FIG.
  • the developed plan view shown in FIG. 1 shows a state in which the elastic members 83 of the leg stretchable part 75 and the leg side stretchable part 80 are stretched until the top sheet 50, the side flap 70, etc. constituting the disposable diaper are not formed.
  • FIG. 1 shows a state in which the elastic members 83 of the leg stretchable part 75 and the leg side stretchable part 80 are stretched until the top sheet 50, the side flap 70, etc. constituting the disposable diaper are not formed.
  • the disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30.
  • the front waistline region 20 is a portion in contact with the wearer's front waistline portion (abdomen portion).
  • the rear waistline region 30 is a portion in contact with the rear waistline portion (back portion) of the wearer.
  • the crotch region 25 is located between the front waistline region 20 and the back waistline region 30.
  • the disposable diaper 10 is formed with a pair of leg-hole openings 35.
  • the leg opening 35 is provided at the outer edge of the disposable diaper in the product width direction, and is a portion arranged along the wearer's leg in a state where the disposable diaper is worn by the wearer.
  • the outer edge is an outer end in the product width direction
  • the inner edge is an inner end in the product width direction.
  • the outer end edge is an outer end in the product longitudinal direction
  • the inner end edge is an inner end in the product longitudinal direction.
  • the direction from the front waistline region 20 to the rear waistline region 30 is referred to as a product longitudinal direction L
  • a direction orthogonal to the product longitudinal direction L is referred to as a product width direction W.
  • the disposable diaper 10 includes an absorber 40 that straddles the crotch region 25 and extends to the front waistline region 20 and the rear waistline region 30.
  • the absorber 40 is constituted by an absorbent core 40a and a covering sheet 40b.
  • the absorbent core 40a can be made of the same material as that of a conventional disposable diaper, and can be appropriately formed using a known member or material such as pulverized pulp or a superabsorbent polymer.
  • the absorbent core 40a is wrapped with a sheet-like covering sheet 40b.
  • the covering sheet 40b is a sheet that covers the absorbent core 40a. At least a part on the skin surface side of the covering sheet 40b is constituted by various fiber nonwoven fabrics or tissue sheets having liquid permeability.
  • a liquid-permeable top sheet 50 is provided on the skin-facing surface side of the absorber 40.
  • the top sheet 50 is formed of a liquid-permeable sheet such as a hydrophilic nonwoven fabric or woven fabric, an apertured plastic film, or an apertured hydrophobic nonwoven fabric.
  • a liquid-impermeable back sheet 60a is provided on the back side (non-skin facing side) of the absorber 40. The back sheet 60a functions as a leak-proof sheet.
  • An auxiliary sheet 55 is provided between the absorber 40 and the top sheet 50.
  • the auxiliary sheet is disposed so as to cover a part of the absorber 40.
  • the front end edge 55F and the rear end edge 55R of the auxiliary sheet 55 are located on the outer side in the product longitudinal direction from the first notch 115 and the second notch 125 described later. More specifically, the front end edge 55F of the auxiliary seat 55 is positioned in front of the first cutout 115, and the rear end edge 55R of the auxiliary seat 55 is positioned rearward of the second cutout 125.
  • the front end edge 55F and the rear end edge 55R of the auxiliary sheet 55 are located on the outer side in the product longitudinal direction with respect to the crotch stretchable part 200 described later.
  • the front end edge 55F of the auxiliary sheet 55 is disposed in the range from the rear end edge 95R of the target portion described later to the front end edge 75F of the leg stretchable portion in the product longitudinal direction.
  • the range from the rear end edge 95R of the target portion to the front end edge 75F of the leg stretchable portion is a range including the rear end edge 95R of the target portion and the front end edge 75F of the leg stretchable portion.
  • the rear end edge 55R of the auxiliary sheet is disposed in the product longitudinal direction L within the range from the rear end edge 200R of the crotch stretchable part 200 to the rear end edge 75R of the leg stretchable part 75.
  • the range from the rear end edge 200R of the crotch expansion / contraction part 200 to the rear end edge 75R of the leg expansion / contraction part 75 is a range including the rear end edge 200R of the crotch expansion / contraction part 200 and the rear end edge 75R of the leg expansion / contraction part 75.
  • the auxiliary sheet 55 can be configured as a sheet similar to the top sheet 50.
  • the auxiliary sheet 55 has liquid permeability and guides body fluid from the top sheet side toward the absorber.
  • the auxiliary sheet 55 is preferably bulkier than the top sheet 50.
  • the auxiliary sheet 55 overlaps part of the first notch 115 and the second notch 125 in the thickness direction.
  • the auxiliary sheet 55 may overlap the entire first notch 115 and the second notch 125, or may not overlap the first notch 115 and the second notch 125.
  • the state in which two members overlap each other is not only the state in which the two members directly overlap, but another member is disposed between the two members, and the two members are indirectly Including the overlapping state.
  • the auxiliary sheet 55 of the present embodiment overlaps the inner edges of the first notch 115 and the second notch 125, but does not overlap the outer edges of the first notch 115 and the second notch 125.
  • Side flaps 70 are provided on the outer edges of the absorber 40, respectively.
  • the side flap 70 is comprised by the nonwoven fabric which piled up the 1 sheet or 2 or more sheets.
  • the pair of side flaps 70 are each provided with a fastening tape 90.
  • the covering sheet 40b, the auxiliary sheet 55, the top sheet 50, and the side flaps 70 constituting the absorber are laminated, and the sheets are joined together by an adhesive.
  • Fastening tape 90 extends along product width direction W in rear waistline region 30 and is fastened to target portion 95 in the front waistline region, thereby holding disposable diaper 10 on the wearer's body.
  • the target portion 95 is configured such that at least a part of the target portion 95 is disposed in the absorber arrangement region in which the absorber is arranged in the front waistline region, and the pair of fastening tapes 90 are fixed to each other.
  • the outer side of the absorbent body 40 in the product width direction is provided with a pair of leg stretchable portions 75 formed around the leg opening 35 and stretchable in the product longitudinal direction L.
  • the leg stretchable portion 75 is longer than the crotch stretchable portion 200 in the product longitudinal direction L, and is provided outside the crotch stretchable portion 200 in the product width direction W.
  • the leg expansion / contraction part 75 should just be comprised so that the leg periphery opening part 35 can be expanded-contracted in a product longitudinal direction, and may be arrange
  • leg stretchable part 75 is a part that is substantially shrunk in the longitudinal direction of the product by the stretchable sheet or the like, and is a concept that excludes a part where the stretchable sheet is disposed in a state where the shrinkage force is not exerted.
  • the leg elastic part 75 is disposed between the side flap 70 and the exterior sheet 60.
  • the leg stretchable part 75 is disposed between the back sheet 60a and the side flap 70.
  • the leg expansion / contraction part 75 of this Embodiment is comprised with the elastic sheet. Further, instead of the stretchable sheet, the leg stretchable part 75 may be configured by arranging one or a plurality of thread-like / strip-like elastic members made of polyurethane elastic fiber or natural rubber.
  • a pair of legside stretchable portions 80 extending along the product longitudinal direction L are provided inside the product width direction W of the pair of leg stretchable portions 75.
  • the leg side stretchable part 80 is an upright stretchable gather that is provided on the inner edge of the side flap and is arranged on the inner side in the product width direction than the leg stretchable part.
  • the side flap 70 is folded back to the top sheet side at the inner edge, and two layers are laminated.
  • An elastic member 83 is provided between the two layers of side flaps 70 so as to extend in the longitudinal direction. Two elastic members are provided on each of the left and right side flaps. The side flap 70 and the elastic member 83 form a leg side stretchable part 80.
  • the leg side stretchable part 80 has a joint part 81 joined to the back sheet 60a and the like, and a contraction part 82 in which an elastic member 83 is disposed and contracts in the product longitudinal direction.
  • the leg side stretchable portion 80 rises with the joint portion 81 as a base end portion when worn, and contacts the wearer's skin with the contraction portion 82 as a vertex.
  • the joint part 81 of the leg side stretchable part 80 includes a first joint part 811 disposed over the entire product longitudinal direction of the disposable diaper and a second joint disposed inside the product width direction from the first joint part 811.
  • the first joining portion 811 is joined to the backsheet 60a.
  • the second joint portion 812 is located outside the contraction portion 82 in the product longitudinal direction.
  • the second joining portion 812 is joined to the top sheet 50.
  • the front end edge 55F of the auxiliary sheet and the rear end edge 55R of the auxiliary sheet are arranged on the inner side in the product longitudinal direction than the second joint portion 812. That is, the front end edge 55F of the auxiliary seat is disposed behind the second joint portion 812 disposed in the front waistline region.
  • the rear end edge 55R of the auxiliary sheet is disposed in front of the second joint portion 812 disposed in the rear waistline region.
  • a waist stretchable portion 85 that can be stretched in the product width direction is provided.
  • the waist elastic part 85 contracts between the fastening tapes in the width direction.
  • the waist elastic part 85 is constituted by an elastic sheet. There are no particular limitations on the members constituting the waist stretchable portion 85.
  • the waist elastic part 85 is disposed between the exterior sheet 60 and the back sheet 60a.
  • Fastening tape 90 is attached to the region of the side flap 70 corresponding to the rear waistline region 30.
  • the fastening tape 90 is provided with a base sheet 91 connected to the side flap 70, an engagement hook (not shown) as a plurality of engagement members, and a hook sheet 92 fixed to the base sheet 91; Is provided.
  • the hook sheet 92 is an area where an engagement member is provided.
  • the target portion 95 is provided on the non-skin facing side surface of the exterior sheet 60 in the front waistline region.
  • the target portion 95 is configured so that the engaging hook of the fastening tape is hooked, and functions as a loop of a hook and loop locking system.
  • an air-through nonwoven fabric can be used as the target portion.
  • a first notch 115 as a first low weight portion and a second notch 125 as a second low weight portion are formed.
  • the first notch 115 and the second notch 125 are slits formed in the absorber 40.
  • a slit is a part in which an absorptive core does not exist.
  • the first notch 115 and the second notch 125 extend along the product width direction.
  • “extending along the product width direction” may be a configuration having at least a certain range in the product width direction, extending in the product width direction and extending in the product longitudinal direction. A configuration and a configuration extending in the product width direction and inclined in the product width direction are also included.
  • the first notch 115 and the second notch 125 each have a notch shape extending from the outer edge of the absorbent core 40a toward the inside in the product width direction.
  • the first notches 115 are a pair of left and right, and are spaced apart in the product width direction.
  • the second notches 125 are a pair of left and right, and are spaced apart in the product width direction.
  • the first notch 115 and the second notch 125 are arranged with an interval in the product longitudinal direction.
  • the second notch 125 is disposed behind the first notch 115.
  • the absorbent body 40 is formed with folds along the product width direction spaced apart in the product longitudinal direction.
  • the first cutout 115 and the second cutout 125 are arranged in a region where the crotch expansion / contraction part is arranged in the product longitudinal direction. That is, the front end edge 200F of the crotch expansion / contraction part is positioned in front of the front end edge of the first notch 115, and the rear end edge 200R of the crotch expansion / contraction part 200 is rearward of the rear end edge 200R of the second notch 125. Located on the side. Since the first notch 115 and the second notch 125 are formed, a flat “bottom” is easily formed along the body at the wearer's crotch when worn.
  • Each low weight portion has a notch shape extending from the outer edge of the absorbent core of the absorbent body toward the inner side in the product width direction. Moreover, the inner edge of each low fabric weight part is located in the product longitudinal direction between the front-end edge in the outer edge of each low fabric weight part, and the rear-end edge in the outer edge of each low fabric weight part.
  • the inner edge 115I of the first notch 115 has a front edge 115OF at the outer edge 115O of the first notch 115 and a rear edge at the outer edge 115O of the first notch 115 in the product longitudinal direction. Located between 115OR. That is, the inner edge 115I of the first notch 115 does not extend outward in the product longitudinal direction from the outer edge 115O of the first notch 115.
  • the inner edge 125I of the second notch 125 has a front edge 125OF at the outer edge 125O of the second notch 125 and a rear edge 125OR at the outer edge 125O of the second notch 125 in the product longitudinal direction, Located between. That is, the inner edge 125I of the second notch 125 does not extend outward in the product longitudinal direction from the outer edge 125O of the second notch 125. With such a shape, the shrinkage of the outer edge of the notch gathers toward the inner edge of the notch, and wrinkles due to the shrinkage are easily formed along the product width direction. That is, the wrinkles formed by the notches are formed along the product width direction.
  • the first notch 115 and the second notch 125 straddle the outer edge of the crotch stretchable part 200 in the product width direction. It is desirable that the pair of left and right first cutouts 115 be separated from each other without communicating with each other. Also, it is desirable that the pair of left and right second notches 125 be separated without communicating with each other.
  • the absorbent core 40a is preferably continuous without being separated by the first cutout and the second cutout.
  • the inner edge of the first notch 115 (second notch 125) has an arc shape in plan view. Moreover, the 1st notch 115 and the 2nd notch 125 are connected with the moderate curve shape with respect to the outer edge of an absorber. More specifically, a line from the front end edge 115OF of the first notch 115 toward the inner edge 115I of the first notch extends toward the inner side in the product width direction while moving backward. The angle formed by the line from the front end edge 115OF of the outer edge 115O of the first notch 115 to the inner edge 115I of the first notch and the outer edge of the absorber is an acute angle.
  • the first notch 115 can gradually guide the force and wrinkles from the outer edge of the absorber toward the inside in the product width direction.
  • a line from the front end edge 125OF at the outer edge 125O of the second notch 125 toward the inner edge 125I of the second notch extends toward the inner side in the product width direction while moving backward.
  • An angle formed by a line from the front end edge 125OF of the second notch 125 toward the inner edge 125I of the second notch and the outer edge of the absorber is an acute angle. Therefore, the second notch 125 can also guide the force and wrinkles from the outer edge of the absorbent body gradually toward the inside in the product width direction.
  • the line toward 115I is a convex shape toward the inside in the product longitudinal direction of the first notch 115.
  • the line from the front edge 125OF of the second notch 125 to the inner edge 125I of the second notch 125O and the inner edge of the second notch 125OR from the rear edge 125OR of the outer edge 125O of the second notch 125 is a convex shape toward the inside in the product longitudinal direction of the second notch 125. With such a shape, the area of the notch can be reduced, and the absorber can be deformed by the notch while ensuring the absorption performance.
  • the length of the first notch 115 and the second notch 125 increases in the product longitudinal direction L as it goes outward in the product width direction W. Since the amount of contraction at the outer edge of the first notch 115 and the amount of contraction by the outer edge of the second notch 125 are large, wrinkles formed by the first notch 115 and the second notch 125 are easy to follow along the product width direction. Become. In addition, since the amount of contraction at the outer edge of the first notch 115 and the amount of contraction by the outer edge of the second notch 125 are large, the crotch region of the disposable diaper has a more rounded shape.
  • such a shape makes it easier for the outer side of the absorbent core 40a in the product width direction W to shrink, so that a flat “bottom” is more easily formed.
  • the absorbent core 40a located closer to the front waistline region 20 than the first notch 115 and the absorbent core 40a located closer to the rear waistline region 30 than the second notch 125 rise from the “bottom”. Since it becomes easy to curve along the roundness of the wearer's body (abdomen and buttocks), the shape of the disposable diaper itself can be closer to the shape of the wearer's body.
  • the low weight per unit area is not limited to the slit.
  • the low basis weight portion may be a portion of the absorbent core where the basis weight of the absorbent material is lower than the surrounding area.
  • the crotch region 25 is provided with a crotch stretchable portion 200 that can be stretched at least in the product longitudinal direction.
  • the crotch stretchable part is configured to more easily maintain a flat shape in a part of the crotch region when the disposable diaper is worn than the other part of the absorber 40.
  • the crotch stretchable portion 200 is configured to be stretchable at least in the product longitudinal direction L or the product width direction W.
  • the crotch expansion / contraction part 200 is disposed so as to overlap the auxiliary sheet 55 and the absorber 40 in plan view.
  • the crotch expansion / contraction part overlaps at least a part of the first notch 115 and the second notch 125, and extends outward from the first notch 115 and the second notch 125 in the product longitudinal direction.
  • the crotch expansion / contraction part 200 is provided apart from the leg expansion / contraction part 75.
  • the width of the absorbent core 40a at the position where the crotch stretchable portion 200 overlaps the absorbent core 40a (in this embodiment, the position between the covering sheet 40b and the backsheet 60a that wraps the absorbent core 40a). It is configured to contract 60% or more of the length in the direction. In this way, by shrinking the portion where the absorbent core 40a is disposed by the crotch stretchable portion 200, the absorbent core 40a shrinks, and it is easy to maintain a flat shape compared to the portion where the absorbent core 40a does not shrink. Become.
  • the absorbent core 40a located in the front waistline area and the rear waistline area located outside the product longitudinal direction from the crotch stretch part 200 is not contracted by the crotch stretch part 200. Therefore, the crotch stretchable part 200 that is maintained in a flat shape at the crotch part of the disposable diaper in a state of being held around the waist / waist of the wearer by the fastening tape does not excessively adhere to the body, resulting in the crotch.
  • the stretchable part 200 is appropriately placed along the body.
  • the crotch stretchable part 200 can be stretched along the product longitudinal direction L, the front waistline region 20 and the back waistline region 30 are easily raised by the shrinkage of the crotch stretchable part 200.
  • a flat crotch region can be formed along the body at the part.
  • the crotch stretchable part 200 is preferably composed of a stretchable sheet.
  • the stretchable sheet can be composed of a stretchable sheet similar to the leg stretchable part 75, for example.
  • the crotch stretchable portion 200 may be configured by arranging a plurality of thread-like or band-like elastic members made of polyurethane elastic fiber or natural rubber.
  • the manufacturing method of an absorbent article includes at least a component part forming step, a component part placing step, a leg periphery forming step, and a cutting step.
  • the components constituting the absorbent article are formed.
  • the absorbent body 40 is manufactured by laminating an absorbent material, molding the absorbent core 40a, and covering the absorbent core 40a with a covering sheet 40b.
  • disposable diapers such as a stretchable sheet constituting the leg stretchable part 75, another web such as a web constituting the top sheet, a leakproof sheet, an absorber, etc. on the web constituting the backsheet
  • the component which comprises 10 is mounted.
  • the stretchable sheet constituting the leg stretchable part 75 is stretched, transferred to the intermittent drum while being further displaced in the width direction, and cut into individual product lengths on the intermittent drum. .
  • the interval between the stretchable sheets is provided with the rotation of the intermittent drum, and the stretchable sheet is transferred onto a continuous web. In this way, the leg stretchable portions can be arranged in a curved line.
  • the leg periphery forming step the top sheet 50, the exterior sheet 60, and the back sheet 60a are cut along the outer edge of the leg stretchable part 75. Thereby, the leg opening part 35 arrange
  • the continuous body in which the top sheet 50, the back sheet 60a, the absorber 40, and the like are arranged is cut into the size of one product along the product width direction W. Thereby, the disposable diaper 10 is manufactured.
  • FIG.4 and FIG.5 is a figure which shows the state with which the disposable diaper is mounted
  • FIG. 4 is a side view visually recognized from the side of the wearer, and
  • FIG. 5 is a diagram schematically showing a part of the wearing state in a cross section based on F2-F2 in FIG.
  • the fastening tape 90 is fixed to the target portion 95, and the disposable diaper 10 is held around the wearer's waist.
  • the leg opening 35 is contracted by the leg elastic part 75 and is in close contact with the wearer's leg.
  • the crotch expansion / contraction part 200 expands / contracts, and the absorber 40 bends along the width direction starting from the first notch 115 and the second notch 125.
  • the absorber 40 is deformed from the first notch 115 and the second notch 125 as the base point, so that a flat “bottom” is formed in the crotch region.
  • the auxiliary sheet 55 is disposed on the skin facing surface side from the absorber 40.
  • the front edge 55F of the auxiliary sheet coincides with the rear edge of the target portion in the product longitudinal direction.
  • a step due to the difference in rigidity and the thickness of the auxiliary sheet is formed on the front end edge 55F of the auxiliary sheet and the rear end edge of the target portion. Therefore, a disposable diaper deform
  • the front edge 55F of the auxiliary sheet is arranged in accordance with the depression (proximal end of the bulge) of the stomach. Therefore, the folding line by a rigidity difference and thickness follows a hollow of the stomach, and a disposable diaper is arrange
  • the rear end edge 55R of the auxiliary sheet is disposed within the range from the rear end edge of the crotch stretchable part to the rear end edge of the leg stretchable part in the product longitudinal direction.
  • a step due to the difference in rigidity and the thickness of the auxiliary sheet is formed on the rear edge 55R of the auxiliary sheet.
  • the disposable diaper is deformed based on the difference in rigidity and the thickness.
  • the rear edge 55R of the auxiliary sheet is arranged in accordance with the bulge of the buttock (the apex of the bulge). Therefore, the fold line by a rigidity difference and thickness is arrange
  • leg stretchable part 75 is disposed along the leg opening 35, the region where the leg stretchable part 75 is disposed in the product longitudinal direction contracts in the product longitudinal direction as a whole.
  • a crotch expansion / contraction part 200 that expands / contracts in the product longitudinal direction L is disposed inside the product longitudinal direction L from the leg opening 35.
  • the contraction in the product longitudinal direction L in the region between the pair of leg stretchable portions 75 can be absorbed.
  • the front end edge 55F of the auxiliary sheet is arranged in the range from the rear end edge 95R of the target portion 95 to the front end edge 75F of the leg stretchable portion 75 in the product longitudinal direction L. Therefore, a difference in rigidity due to the front end edge 55F of the auxiliary sheet and a step due to the thickness of the auxiliary sheet 55 are formed in the range of 75F from the rear end edge 95R of the target portion to the front end edge of the leg stretchable portion.
  • the disposable diaper is easily deformed with the rigidity difference and the step as a base point.
  • Disposing the front edge 55F of the auxiliary seat along the stomach cavity (the base end of the bulge) when wearing the disposable diaper 10 along the stomach cavity and the fold line due to the difference in rigidity and thickness along the stomach bulge 10 Can be placed.
  • infants often have a swelled body shape compared to adults, and can be suitably used in such infants.
  • the front end edge 55F of the auxiliary sheet serving as the deformation base point is located outside the product longitudinal direction L from the leg stretchable part 75.
  • the position of the front end edge 55F of the auxiliary sheet may be shifted due to the contraction of the leg stretchable part.
  • the front end edge 55F of the auxiliary seat is located outside the product longitudinal direction L from the leg stretchable part 75, the displacement of the front end edge 55F of the auxiliary seat can be suppressed and the disposable diaper can be arranged along the bulge of the stomach. .
  • the rear edge 55R of the auxiliary sheet is arranged in the range from the rear edge 200R of the crotch stretchable part to the rear edge 75R of the leg stretchable part in the product longitudinal direction L. Therefore, in the range from the rear end edge 200R of the crotch expansion / contraction part to the rear end edge 75R of the leg expansion / contraction part, a difference in rigidity due to the rear end edge 55R of the auxiliary sheet and a step due to the thickness of the auxiliary sheet are formed. The disposable diaper is easily deformed based on the rigidity difference and the thickness.
  • the folding line due to the difference in rigidity and thickness can be arranged along the bulge of the buttock so as to wrap the buttock.
  • the disposable diaper 10 when attached to the wearer, a flat “bottom” is formed in the crotch of the wearer by the crotch stretchable part 200, and the disposable diaper 10 has an appropriate space between the wearer and the wearer. Even after absorbing excrement, it does not hang down in the crotch of the wearer. Therefore, the situation where the auxiliary sheet 55 is bent does not occur, and the excrement excreted from the excretion opening of the wearer can be appropriately taken in and held in the auxiliary sheet.
  • the diffusion of the excretion taken into the auxiliary sheet 55 is less affected by gravity compared to the case where the disposable diaper 10 hangs down. Is preferably diffused.
  • the absorbent sheet 40 including the auxiliary sheet 55 is not in close contact with the wearer's body, and the auxiliary sheet 55 receives pressure due to close contact. Therefore, the excretion intake speed in the auxiliary sheet 55 is also suitable. That is, it becomes a state in which the original performance can be exhibited with respect to retention, diffusion, and uptake of excrement, which is a function of the auxiliary sheet 55.
  • the front end edge 55F of the auxiliary sheet and the rear end edge 55R of the auxiliary sheet are disposed on the inner side in the product longitudinal direction L of the second joint portion 812 of the leg side stretchable part 80. Therefore, the front end edge 55F of the auxiliary sheet 55 and the rear end edge 55R of the auxiliary sheet are attracted toward the wearer by the contraction of the contraction portion 82. Therefore, the front end edge 55F of the auxiliary seat and the rear end edge 55R of the auxiliary seat are easily arranged along the wearer's body.
  • the crotch expansion / contraction part 200 extends outward in the product longitudinal direction L from the first notch 115 and the second notch 125. Therefore, the inside of the region where the crotch expansion / contraction part 200 is arranged can be deformed more flexibly, the contraction of the leg expansion / contraction part 75 can be absorbed, and the occurrence of wrinkles at unintended locations can be suppressed. As a result, it is possible to suppress the formation of unintended wrinkles on the absorbent body 40, the top sheet 50, and the auxiliary sheet 55, maintain the absorbent body 40 and the auxiliary sheet 55 in the intended form, and arrange them along the body.
  • the auxiliary sheet 55 overlaps at least a part of the low weight portion (the first notch 115 and the second notch 125) in the thickness direction. Since the auxiliary sheet 55 is arranged so as to overlap with the low basis weight (the first notch 115 and the second notch 125), the auxiliary sheet 55 contracts when the absorber 40 is deformed from the low basis weight as the base point. It becomes easy.
  • the skin-facing surface side of the absorbent body 40 with respect to the deformation base point can be formed in a gentle curved shape by the auxiliary sheet 55, and the disposable diaper can be arranged more along the roundness of the body.
  • the first notch 115 and the second notch 125 are arranged in pairs with a space in the product width direction W, respectively.
  • the notches are arranged at the four corners of the crotch expansion / contraction part 200 in plan view.
  • FIG. 6 is a developed plan view of a disposable diaper 10A according to a modification.
  • the developed plan view shown in FIG. 6 shows the elastic members 83 of the leg stretchable part 75, the crotch stretchable part 130, and the legside stretchable part 80 until the top sheet 50, the side flap 70, and the like constituting the disposable diaper are not formed. It is a figure of the extended state extended.
  • the disposable diaper 10A is formed with a pair of buttocks stretchable portions 77 that stretch in the product longitudinal direction L.
  • the collar expansion / contraction part 77 is arranged outside the leg expansion / contraction part 75 in the product width direction.
  • the collar part stretchable part 77 is configured to be stretchable in the product longitudinal direction.
  • the collar expansion / contraction portion 77 is a portion that is substantially contracted in the product longitudinal direction by the thread rubber or the like, and is a concept that excludes a portion where the thread rubber or the like is disposed in a state where the contraction force is not exerted.
  • the front edge 77F of the buttocks expansion / contraction part is located behind the center of the product opening direction of the leg opening 35. Therefore, the rear part of the leg stretchable part 75 and the outer region in the product width direction W are contracted by the buttocks stretchable part 77, and the vicinity of the leg opening 35 in the rear waistline region 30 (the end part on the crotch side of the buttocks) is rearward and product. Can be pulled outward in the width direction.
  • the disposable diaper when wearing a disposable diaper, the disposable diaper is pulled in the product longitudinal direction L in a state where the crotch region 25 of the disposable diaper is in contact with the wearer's inseam and fixed with a fastening tape 90 or the like.
  • the disposable diaper When worn in this manner, the disposable diaper may be pulled between the fastening portion of the fastening tape 90 and the crotch region 25, and the leg opening 35 may not be disposed along the wearer's leg.
  • the area on the buttocks side of the wearer is larger than the area on the abdomen side of the wearer.
  • the product width direction end of the rear waistline region may be wound inside during wearing, and a part of the wearer's buttocks may be exposed.
  • the disposable diaper can be brought close to the rear waistline region 30 by the buttocks expansion / contraction part 77, and the problem that the wearer's buttocks are exposed can be suppressed.
  • a frill-like contraction part contracted by the leg extension part 75 and the buttocks extension part 77 is formed.
  • the leg stretchable part 75 and the buttocks stretchable part 77 can bring the frill-like contracted part into close contact with the body.
  • the rear end edge 55R of the auxiliary sheet is disposed in the region where the buttocks stretchable part is placed in the product longitudinal direction L, it is attracted to the wearer by contraction of the buttocks stretchable part 77. Therefore, the rear end edge 55R of the auxiliary sheet can be easily along the wearer's body, and the disposable diaper can be arranged along the buttocks.
  • the disposable diaper according to the modified example does not have the crotch stretchable part 200 formed.
  • the disposable diaper according to the modification has a crotch stretchable part 130 formed therein.
  • the crotch stretchable part 130 is disposed on the outer side in the product width direction than the absorbent core 40a and on the inner side in the product width direction than the leg stretchable part 75.
  • the crotch stretchable part 130 is disposed so as not to overlap the absorbent core in the thickness direction of the disposable diaper.
  • the crotch stretchable part 130 is composed of a plurality of thread-like elastic members.
  • the crotch elastic part 130 is disposed between the top sheet 50 and the back sheet 60a. Note that the crotch stretchable portion 130 may be disposed between the exterior sheet 60 and the backsheet 60a.
  • the crotch stretchable part 130 passes through the center of the outer edge of the side flap 70 and the outer edge of the absorbent body in the narrowest region of the disposable diaper in the crotch region, and is on the inner side in the product width direction than the line FL1 extending in the product longitudinal direction. Located in.
  • the crotch region 25 of the disposable diaper 10 hangs downward when worn and easily separates from the wearer's body.
  • the disposable diaper 10 according to the present embodiment can pull up the absorbent core 40a toward the wearer's crotch side by contraction of the crotch stretchable part 130. Therefore, it can suppress that a disposable diaper and a wearer's body leave
  • the absorbent core 40a can be continuously pulled up to the inseam of the wearer by the crotch stretchable part 130, the absorbent core 40a is separated from the wearer even when the weight of the body fluid is applied to the absorbent core 40a. This can be suppressed. Therefore, absorption performance can be secured even after excretion. That is, the disposable diaper according to the modified example raises the absorbent core 40a in the crotch region by the crotch stretchable part 130 instead of the crotch stretchable part.
  • a first notch 115 and a second notch 125 are arranged in a region extending in the product width direction from the crotch stretchable part 130. Therefore, the pulling effect by the crotch elastic part 130 is further exhibited. Further, the absorbent core is partially bent by the crotch stretchable part 130 in a state where the disposable diaper is attached to the wearer. Since the absorptive core is formed, the way of bending of the absorptive core becomes smooth, and the uncomfortable feeling at the time of wearing can be reduced.
  • the disposable diaper may be folded from the fold along the product width direction in the packaging state of the disposable diaper.
  • a crease is formed around the folded fold.
  • the wrinkles due to the crease can be collected in the low weight part. Therefore, wrinkles around the fold can be reduced.
  • Disposable diaper 20 ... Front waist area 25 ... Inseam area 30 ... Back waist area 35 ... Leg opening 40 ... Absorber 40a ... Absorptive core 40b ... Coating sheet 50 ... Top sheet 55 ... Auxiliary sheet 60 ... Exterior sheet 60a ... Back sheet 70 ... Side flap 75 ... Leg elastic part 80 ... Leg side elastic part 81 ... Junction part 82 ... Shrink part 83 ... Elastic member 85 ... Waist elastic part 90 ... Fastening tape 115 ... First notch 125 ... Second Notch 200 ... Crotch expansion / contraction part L ... Product longitudinal direction W ... Product width direction

Landscapes

  • 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)

Abstract

Selon l'invention, une couche-culotte jetable (10) comprend une section jambes étirable (75), une section entrejambes étirable (200) positionnée sous la zone d'entrejambes, et une feuille auxiliaire (55) positionnée entre une feuille supérieure (50) et un corps absorbant (40). La section jambes étirable (75) se trouve plus à l'extérieur dans le sens de la largeur et s'étend plus à l'extérieur dans le sens de la longueur que la section entrejambes étirable (200). Le bord avant (55F) de la feuille auxiliaire (55) est positionné, dans le sens de la longueur, à l'intérieur de la zone comprise entre le bord arrière (95R) d'une section cible (95) et le bord avant (75F) de la section jambes étirable (200). Le bord arrière (55R) de la feuille auxiliaire (55) est positionné, dans le sens de la longueur, à l'intérieur de la zone comprise entre un bord arrière (200R) de la section entrejambes étirable (200) et le bord arrière (75R) de la section jambes étirable.
PCT/JP2014/067222 2014-06-23 2014-06-27 Couche-culotte jetable WO2014196663A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-128636 2014-06-23
JP2014128636A JP5615457B1 (ja) 2014-06-23 2014-06-23 使い捨ておむつ

Publications (1)

Publication Number Publication Date
WO2014196663A1 true WO2014196663A1 (fr) 2014-12-11

Family

ID=52008287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/067222 WO2014196663A1 (fr) 2014-06-23 2014-06-27 Couche-culotte jetable

Country Status (2)

Country Link
JP (1) JP5615457B1 (fr)
WO (1) WO2014196663A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7187302B2 (ja) * 2018-12-26 2022-12-12 花王株式会社 使い捨ておむつ
JP7038078B2 (ja) * 2019-04-09 2022-03-17 ユニ・チャーム株式会社 吸収性物品の製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07265343A (ja) * 1994-03-04 1995-10-17 Kimberly Clark Corp 改善されたサージ処理機能を有する吸収物品
JP2012187152A (ja) * 2011-03-08 2012-10-04 Unicharm Corp 使い捨て着用物品
WO2014084234A1 (fr) * 2012-11-27 2014-06-05 ユニ・チャーム株式会社 Couche jetable
JP2014104145A (ja) * 2012-11-27 2014-06-09 Uni Charm Corp 使い捨ておむつ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07265343A (ja) * 1994-03-04 1995-10-17 Kimberly Clark Corp 改善されたサージ処理機能を有する吸収物品
JP2012187152A (ja) * 2011-03-08 2012-10-04 Unicharm Corp 使い捨て着用物品
WO2014084234A1 (fr) * 2012-11-27 2014-06-05 ユニ・チャーム株式会社 Couche jetable
JP2014104145A (ja) * 2012-11-27 2014-06-09 Uni Charm Corp 使い捨ておむつ

Also Published As

Publication number Publication date
JP5615457B1 (ja) 2014-10-29
JP2016007288A (ja) 2016-01-18

Similar Documents

Publication Publication Date Title
JP5243655B1 (ja) 使い捨ておむつ
JP6118083B2 (ja) 使い捨ておむつ
TW201249411A (en) Disposable diaper
JP7147912B2 (ja) テープ型使い捨ておむつ
WO2014084236A1 (fr) Couche jetable
JP5800959B1 (ja) 使い捨ておむつ
WO2014073637A1 (fr) Couche jetable
WO2013161952A1 (fr) Couche-culotte jetable
WO2014178305A1 (fr) Procédé de production d'un article absorbant et article absorbant
JP5255139B1 (ja) 使い捨ておむつ
JP6285812B2 (ja) 使い捨ておむつ
JP5721987B2 (ja) 吸収性物品
JP6212289B2 (ja) 使い捨ておむつ
JP5615457B1 (ja) 使い捨ておむつ
JP5200179B1 (ja) 使い捨ておむつ
JP6275571B2 (ja) 使い捨ておむつ
WO2015012146A1 (fr) Couche jetable
JP6074164B2 (ja) 使い捨ておむつ
WO2015012130A1 (fr) Couche jetable
EP3705099B1 (fr) Article absorbant
WO2019235326A1 (fr) Corps d'emballage pour article absorbant
JP6195737B2 (ja) 使い捨ておむつ
JP6193666B2 (ja) 使い捨ておむつ
JP6214955B2 (ja) 使い捨ておむつ
WO2019070009A1 (fr) Garniture absorbante

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14808356

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14808356

Country of ref document: EP

Kind code of ref document: A1