WO2013180260A1 - Couche jetable - Google Patents

Couche jetable Download PDF

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Publication number
WO2013180260A1
WO2013180260A1 PCT/JP2013/065173 JP2013065173W WO2013180260A1 WO 2013180260 A1 WO2013180260 A1 WO 2013180260A1 JP 2013065173 W JP2013065173 W JP 2013065173W WO 2013180260 A1 WO2013180260 A1 WO 2013180260A1
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WO
WIPO (PCT)
Prior art keywords
stretchable
disposable diaper
region
crotch
width direction
Prior art date
Application number
PCT/JP2013/065173
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 WO2013180260A1 publication Critical patent/WO2013180260A1/fr

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    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • 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
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/531—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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad

Definitions

  • the present invention relates to a disposable diaper.
  • the fit property to the wearer's body is enhanced as the entire structure of the waistline region. As a result, there is a problem that the load on the wearer's skin is increased.
  • the disposable diaper when the wearer's leg moves or when the wearer takes this posture, the disposable diaper is displaced on the wearer's back and temporarily takes When the shift occurs, the disposable diaper has a problem that it is separated from the wearer's body in the region from the wearer's back to the crotch.
  • the present invention has been made in view of such a situation, and fits the wearer's body without giving an excessive load to the wearer's skin, and has a structure that is difficult to shift from the wearer's body.
  • the purpose is to provide disposable diapers.
  • a first feature of the present invention includes a front waistline region, a rear waistline region, and a crotch region positioned between the front waistline region and the rear waistline region, and a pair of leg opening portions are formed. And a product width direction extending from the front waistline region to the rear waistline region, and a product width orthogonal to the product longitudinal direction, comprising an absorbent body extending across the crotch region and extending toward the front waistline region and the rear waistline region.
  • a disposable diaper having a direction extending in the product width direction in the front waistline region and the rear waistline region and configured to hold the disposable diaper on a wearer's body And a crotch stretchable part formed in the crotch region, a pair of waist stretchable parts formed in the rear waistline region and stretchable in the product width direction, and formed in the absorber, along the product width direction Stretch A first inflection part serving as a bending base point of the disposable diaper, and formed in the absorbent body, extending along the product width direction to serve as a bending base point of the disposable diaper, and more than the first inflection part.
  • a disposable diaper 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
  • the tape-type disposable diaper 10 is described as an example, but the present invention is also applicable to the pant-type disposable diaper 10.
  • FIG. 1 and 2 are developed plan views of the disposable diaper 10 according to the present embodiment
  • FIG. 3 is a cross-sectional view of the disposable diaper 10 according to the present embodiment taken along the line FF shown in FIG.
  • FIG. 4 is a diagram schematically showing a wearing state of the disposable diaper 10 according to the present embodiment to the wearer.
  • 1 and 2 is a state in which the leg gathers 75 and the leg side gathers 80 are extended until the ridges such as the top sheet 50 and the side flaps 70 constituting the disposable diaper 10 are not formed.
  • the disposable diaper 10 includes a front waistline region 20, a crotch region 25, and a back waistline region 30. Further, the disposable diaper 10 is formed with a pair of leg-hole openings 35.
  • the front waistline region 20 is a portion in contact with the wearer's front waistline portion
  • the back waistline region 30 is a portion in contact with the wearer's back waistline portion
  • the crotch region 25 is in contact with the front waistline region 20 and the rear. It is a part located between the waist area 30.
  • 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 absorbent body 40 that extends across the crotch region 25 and extends to the front waistline region 20 and the rear waistline region 30. As shown in FIG. 3, the absorber 40 is comprised by the absorber core 40a and the core wrap 40b.
  • the absorbent core 40a is the same as that used in conventional disposable diapers, and the absorbent core 40a can be appropriately configured using known members and materials such as pulverized pulp and high-absorption polymer.
  • the absorber core 40a is wrapped with a sheet-like core wrap 40b.
  • the core wrap 40b is a sheet that covers the absorbent core 40a. At least a part of the core wrap 40b on the skin contact surface side is composed of various fiber nonwoven fabrics or tissue sheets having liquid permeability.
  • an air-through fiber nonwoven fabric having a mass of about 10 to 30 g / m 2 , a spunbond nonwoven fabric, an SMS (spunbond-meltblown-spunbond) nonwoven fabric, a mass of about 10 to 30 g / m Two tissue sheets can be used.
  • a liquid-permeable top sheet 50 is provided on the surface side (skin contact surface side) of the absorber 40, and the back surface side (non-skin contact surface) of the absorber 40.
  • the back sheet 60 is provided on the side.
  • a liquid-impermeable leak-proof sheet 61 is provided between the top sheet 50 and the back sheet 60.
  • Side flaps 70 are respectively provided on both side edges of the absorbent body 40 in the product width direction W.
  • the side flap 70 is comprised by the nonwoven fabric which piled up the 1 sheet or 2 or more sheets.
  • the disposable diaper 10 includes a pair of fastening tapes 90 in the rear waistline region 30, and is provided on the non-skin contact surface side of the front waistline region 20.
  • a target tape 91 is provided in a predetermined area.
  • the disposable diaper 10 can be held on the wearer's body.
  • the front waistline region 20, the rear waistline region 30, and the fastening tape 90 constitute a waistline holding portion 115.
  • the waistline holding portion 115 of the rear waistline region 30 is a range extending in the product width direction W from the region where the fastening member of the fastening tape 90 is provided.
  • the waistline holding portion 115 of the front waistline region 20 is a range extending in the product width direction W from the region where the target tape 91 is provided.
  • the disposable diaper 10 which concerns on this embodiment is provided with the crotch expansion-contraction part 200a formed in the absorber arrangement
  • the crotch stretchable part 200a may be provided between the absorber 40 (core wrap 40b) and the leak-proof sheet 61.
  • the crotch stretchable portion 200a may be stretchable in the product longitudinal direction L, or may be stretchable in both the product longitudinal direction L and the product width direction W.
  • the crotch stretchable part 200a may be formed of a stretchable sheet member.
  • the crotch expansion / contraction part 200a is provided independently from the leg expansion / contraction part 75, and overlaps with the absorber core 40a (in this embodiment, between the core wrap 40b that wraps the absorber core 40a and the back sheet 60). In the position), 60% or more of the length in the width direction of the absorbent core 40a at the overlapping position is contracted.
  • the absorber core 40a contracts, and it is easy to maintain a flat shape compared to the portion where the absorber core 40a does not contract. Become.
  • the absorber core 40a positioned in the front waistline region 20 and the rear waistline region 30 located outside the product longitudinal direction L from the crotch stretchable portion 200a is not contracted by the crotch stretchable portion 200a.
  • the crotch stretchable part 200a maintained in a flat shape in the crotch region 25 of the disposable diaper 10 in a state of being held around the waist and waist of the wearer by the fastening tape 90 is in close contact with the wearer's body.
  • the crotch expansion / contraction part 200a is appropriately disposed along the wearer's body.
  • a stretchable sheet member a stretchable film formed by melting a thermoplastic elastomer resin such as urethane or styrene, a stretchable nonwoven fabric composed of stretchable fibers, a stretchable film or a stretchable nonwoven fabric is partially A composite sheet obtained by laminating a non-stretchable sheet that has been cut or weakened can be used.
  • the crotch stretchable portion 200a may be configured by arranging elastic members in the form of threads and bands made of polyurethane elastic fiber or natural rubber in parallel with each other.
  • the thickness of the elastic member to be used and the pitch to be arranged can be appropriately selected.
  • the interval between the elastic members is preferably 7 mm or less, and more preferably 5 mm or less.
  • the difference in the interval between adjacent elastic members is 2 mm or less.
  • the expansion / contraction rate of the crotch expansion / contraction part 200a is preferably 1.2 times or more and 1.8 times or less.
  • the expansion / contraction ratio of the crotch expansion / contraction part 200a may be set to 1.4 times.
  • the expansion / contraction rate of the crotch expansion / contraction part 200a means the degree of expansion / contraction of the crotch expansion / contraction part 200a in the expansion / contraction direction (product longitudinal direction L in this embodiment), and is defined by the following (formula 1).
  • Expansion rate of the crotch expansion / contraction part 200a (length in the expansion / contraction direction of the crotch expansion / contraction part 200a in the maximum expansion state) / (length in the expansion / contraction direction of the crotch expansion / contraction part 200a in the natural state) (Equation 1)
  • this expansion / contraction rate shall be measured as follows, for example.
  • the disposable diaper 10 when the disposable diaper 10 is enclosed with the package etc., the disposable diaper 10 is taken out from a package, and it is 60 in the atmosphere of 20 degreeC +/- 2 degreeC and relative humidity 60% +/- 5% RH in the state. Leave for a minute.
  • the skin on the buttocks side of the wearer extends about 30% relative to the stretched body.
  • the expansion / contraction ratio of the crotch expansion / contraction part 200a is less than 1.2 times, the crotch expansion / contraction part 200a is not sufficiently contracted in the natural state, and the disposable diaper 10 is compared with the case where the crotch expansion / contraction part 200a is not provided.
  • the difference in easiness of bending is small, and the front waistline region 20 cannot stand up at a desired position.
  • the expansion ratio of the crotch expansion / contraction part 200a is larger than 1.8 times, the contraction dimension in the contraction direction of the crotch expansion / contraction part 200a becomes too large, so that the region where the crotch expansion / contraction part 200a exists is more than along the body.
  • the disposable diaper 10 is likely to be in a close contact state, and easily displaced downward from the wearer.
  • the crotch expansion / contraction part 200 a is provided independently from the waistline holding part 115 without intersecting with the waistline holding part 115.
  • the shrinkage amount of the crotch stretchable part 200a in the product longitudinal direction L may be configured to be 2 to 8% of the length of the disposable diaper 10 in the product longitudinal direction L.
  • the amount of shrinkage is the length “b (mm)” in a stretched state so that the wrinkles are sufficiently small and the surface of the sample is almost smooth, and in the natural state in the direction along the stretching direction of the sample. It is the difference from the length “a (mm)” and can be calculated by (b ⁇ a).
  • the “length” is measured by using a spring measure (tape: glass fiber-containing vinyl chloride coating) manufactured by Shinwa Measurement Co., Ltd. so as to be along the region to be measured.
  • the amount of shrinkage of the crotch stretchable part 200a in the product longitudinal direction L is 2 to 8% of the length of the disposable diaper 10 in the product longitudinal direction L, and the process of attaching the disposable diaper 10 to the wearer.
  • the crotch stretchable part 200a can be confirmed to be easily along the wearer's body.
  • the amount of shrinkage in the product longitudinal direction L of the crotch stretchable part 200a is larger than 8%, the crotch stretchable part 200a is shrunk too much, and the length in the product longitudinal direction L of the disposable diaper 10 is not sufficient, and is disposable. It becomes difficult to attach the diaper 10 to the wearer's body, or the disposable diaper 10 and the wearer's body are in close contact with each other in the crotch region 25 and are likely to be displaced.
  • the amount of shrinkage of the crotch stretchable part 200a in the product longitudinal direction L is less than 2%, the effect itself of the crotch stretchable part 200a that brings the disposable diaper 10 closer to the wearer's body becomes difficult to manifest.
  • a pair of legs formed along the leg opening 35 on the surface side (top sheet 50 side) of the absorber 40 and capable of expanding and contracting at least in the product longitudinal direction L.
  • An expansion / contraction part (leg gather) 75 is provided.
  • the leg stretchable part 75 is longer than the crotch stretchable part 200a in the product longitudinal direction L, and is provided outside the crotch stretchable part 200a in the product width direction W.
  • the leg stretchable part 75 may be configured by a predetermined number of elastic members. Moreover, as shown in FIG.1 and FIG.2, the leg expansion-contraction part 75 may be formed with the elastic sheet member similarly to the crotch expansion-contraction part 200a.
  • the width of the stretchable sheet member (the width in the product width direction W in the natural state of the disposable diaper 10) is preferably at least 5 mm and at most 45 mm, more preferably at least in the crotch region 25. 0.5 mm or more and 35 mm or less.
  • the width of the stretchable sheet member is less than 5 mm, the effect of substantially following the wearer's leg around the surface does not appear, and when the width of the stretchable sheet member exceeds 45 mm, The area along the side becomes wide, and the stretchable sheet member is easily wound around the wearer's body or turned up.
  • the expansion / contraction rate of the leg expansion / contraction part 75 is preferably 1.5 to 2.4 times.
  • the expansion / contraction rate of the leg expansion / contraction part 75 may be set to 1.9 times.
  • the expansion / contraction rate of the leg expansion / contraction part 75 shall be prescribed
  • a pair of leg side gathers 80 extending along the product longitudinal direction L are provided inside the pair of leg stretchable portions 75 (near the center in the product width direction W). May be.
  • the leg side gather 80 includes a joint portion 81 and a free end portion 82 that is located on the opposite side of the joint portion 81 and in which an elastic member 83 is disposed.
  • the joining portion 81 may be joined to the top sheet 50, the back sheet 60, or the leak-proof sheet 61.
  • the end portion on the front waistline region 20 side and the end portion on the rear waistline region 30 side in the product longitudinal direction L of the free end portion 82 are joined to the top sheet 50.
  • the joint portion 81 is disposed between the crotch stretchable portion 200a and the leg stretchable portion 75 in the product width direction W.
  • leg side gather 80 When the leg side gather 80 is worn, it rises with the joint portion 81 as the base end portion, and the free end portion 82 contacts the wearer's skin with the apex portion.
  • the absorber 40 is formed with a first inflection portion 116 and a second inflection portion 125.
  • the 1st inflection part 116 and the 2nd inflection part 125 did not show the notch of absorber 40, but were contracted with the part contracted by contraction of crotch expansion-contraction part 200a.
  • part is shown.
  • the second inflection part 125 is located closer to the rear waistline region 30 than the first inflection part 116.
  • the 1st inflection part 116 and the 2nd inflection part 125 are extended along the product width direction W, and are comprised so that it may become a bending origin of the disposable diaper 10.
  • FIG. 1st inflection part 116 and the 2nd inflection part 125 are extended along the product width direction W, and are comprised so that it may become a bending origin of the disposable diaper 10.
  • the above-described crotch expansion / contraction part 200a is formed between the first inflection part 116 and the second inflection part 125.
  • the first inflection part 116 and the second inflection part 125 are formed by a rigidity difference between a part contracted by the contraction of the crotch expansion / contraction part 200a and a part other than the contracted part. As a result, a flat “bottom” can be formed on the disposable diaper 10.
  • a notch portion 110 and a notch portion 120 are formed in regions outside the product longitudinal direction L of the first inflection portion 116 and the second inflection portion 125, respectively.
  • the notch part 110 and the notch part 120 are areas where the absorber core 40 a constituting the absorber 40 does not exist.
  • the notch 110 and the notch 120 are formed along the edge of the crotch stretchable part 200a in the product longitudinal direction L.
  • the fabric weight of the absorber core 40a is made rather than a peripheral area
  • the notch part 110 and the notch part 120 are formed in order to make the first inflection part 116 and the second inflection part 125 better.
  • the absorber core 40a located in the front waistline region 20 and the rear waistline region 30 and the absorber core 40a located in the crotch region 25 are It is preferable that it is continuous without being completely separated.
  • the notch portion 110 and the notch portion 120 are configured such that the length in the product longitudinal direction L becomes longer as going to the outside in the product width direction W.
  • the outer side of the absorbent core 40a in the product width direction W is more easily contracted. Therefore, while forming a flat “bottom” in the disposable diaper 10, the front waistline region 20 side of the notch 110 is formed.
  • the absorber core 40a located on the rear waist region 30 side of the absorber core 40a and the notch 120 rises from the flat “bottom” and follows the roundness of the wearer's body (abdomen and buttocks). It becomes easy to bend in the product width direction W.
  • the edge of the notch 110 on the front waistline region 20 side and the edge of the notch 120 on the back waistline region 30 side may be arcuate.
  • the edge of the notch portion 110 on the front waistline region 20 side is shaped such that the center of the arc is located on the rear waistline region 30 side of the edge, and the rear waistline region of the notch portion 120
  • the edge part on the 30th side has such a shape that the center of the arc is located closer to the front waistline region 20 side than the edge part.
  • region where the length in the product width direction W of the absorber 40 is the shortest is arrange
  • the disposable diaper 10 includes a pair of waist stretchable portions (waist gathers) 210 formed in the rear waistline region 30 and stretchable in the product width direction W.
  • each of the pair of waist stretchable portions 210 is configured by a stretchable sheet, similar to the crotch stretchable portion 200a and the leg stretchable portion 75.
  • the member constituting the waist stretchable part 210 is not particularly limited, but it is possible to use a member that is as thin as possible, has a low rigidity, and has a small width ratio, so that the wearer can flexibly adhere to the waistline of the wearer along the waistline direction. It is preferable to make the waist stretchable part 210 possible.
  • a stretchable film having a basis weight of 30 g / m 2 is used as the waist stretchable portion 210.
  • the waist stretchable part 210 is stretched by 1.5 to 2.5 times the length in the non-stretched state (natural state), and then adhered to the backsheet 60 by a hot melt adhesive or heat treatment.
  • the waist stretchable part 210 is disposed between the top sheet 50 and the back sheet 60.
  • the absorber 40 may be arrange
  • the waist expansion-contraction part 20 may be arrange
  • the waist stretchable part 210 includes a pair of waist stretchable parts 210.
  • a non-stretchable region 211 is formed between the pair of waist stretchable portions 210.
  • a pair of waist expansion-contraction part 210 may be comprised so that it may be connected in the position near the product longitudinal direction outer side.
  • the pair of waist stretchable portions 210 may be configured to be connected by the same member as the pair of waist stretchable portions 210, or may be connected by a member different from the pair of waist stretchable portions 210. It may be configured as follows.
  • the non-stretchable region is a portion in contact with a portion around the wearer's sacrum (or a portion corresponding to a hollow portion of the sacrum).
  • the displacement of the disposable diaper 10 can be suppressed by pressing the non-stretchable region 211 of the disposable diaper 10 against these parts.
  • the product width by the pair of waist stretchable parts 200 a while keeping the disposable diaper 10 along the crotch of the wearer by the crotch stretchable part 200 a By pressing the non-stretchable region 211 against the site around the wearer's sacrum with the shrinkage force Fw in the direction W, the displacement of the disposable diaper 10 on the wearer's back can be suppressed.
  • the pair of waist stretchable portions 210 may be configured to overlap the absorber 40.
  • a pair of waist elastic part 210 and the absorber 40 May not actually overlap, and the position of the pair of waist stretchable portions 210 in the product width direction W and the position of the absorber 40 in the product width direction W may be configured to overlap.
  • the distance D1 is a distance between the end E5 inside the product width direction W in each of the waist stretchable portions 210 and the center line O in the product width direction W of the disposable diaper 10.
  • the distance D2 is a distance between the end portion E6 on the outer side of the product width direction W of the absorber 40 and the center line O.
  • the absorbent body 40 extending in the central region in the product width direction W of the disposable diaper 10 can be more reliably pressed against a portion around the sacrum at the center of the wearer's body.
  • end E7 on the outer side of the product width direction W in each of the waist stretchable parts 210 may be configured not to overlap the base end part 90a of the fastening tape 90.
  • the non-stretchable region 212 can be provided between the end E7 on the outer side of the product width direction W of each of the waist stretchable portions 210 and the base end portion 90a of the fastening tape 90.
  • the region 212 can be pressed against the iliac crest and upper anterior iliac spine on the side of the wearer, and the displacement of the disposable diaper 10 can be further suppressed.
  • the distance D4 between the end portion E3 on the front waistline region 20 side in the product longitudinal direction L in the crotch stretchable portion 200a and the end portion E4 on the front waistline region 20 side in the product longitudinal direction L of the disposable diaper 10 is crotch stretchable. It is comprised so that it may become shorter than the distance D3 between the edge part E2 by the side of the rear waist area 30 of the product longitudinal direction L in the part 200a, and the edge part E1 by the side of the rear waist area 30 of the product longitudinal direction L of the disposable diaper 10. It may be.
  • the crotch stretchable part 200a configured to be a flat “bottom” along the wearer's body when the disposable diaper 10 is worn is attached to the crotch of the wearer.
  • the crotch stretchable part 200a is present at a position displaced closer to the stomach side than the wearer's back side (buttock side), while the non-stretchable region 211 is in close contact with the wearer's back side. Therefore, the region H shown in FIGS. 1 and 2 is a region that forms a space between the wearer's body and the main body of the disposable diaper 10 while being located on the buttocks of the wearer.
  • the crotch stretchable part 200a As a result, by arranging the crotch stretchable part 200a on the front side, the above-mentioned area H can be secured more widely, and the stool discharged by the wearer can be accommodated in the area H. And since the crotch stretchable part 200a is lifted to a position approaching the wearer's body and is along the body, it is possible to make the stored stool less likely to flow in the front waistline direction. 10 can be held within the chamber 10 to prevent leakage.
  • the urine accommodated near the front waistline region 20 side of the disposable diaper 10 and the region H are separated at different positions, it is difficult for both urine and feces to be mixed. It is also possible to reduce irritation to the skin of the wearer induced by the mixture.
  • the sheet on the skin contact surface side (for example, the top sheet 50) at a position corresponding to the non-stretchable region 211 may be provided with unevenness.
  • the unevenness is formed, for example, by partially forming an emboss on a nonwoven fabric made bulky using crimped fibers or by partially changing the amount of fibers laminated on the nonwoven fabric sheet itself. It becomes possible.
  • the non-stretchable region 211 is a part that is in close contact with the wearer's body, the sheet (for example, the top sheet 50) provided on the wearer's skin contact surface side is provided with unevenness. Therefore, it is possible to reduce irritation to the skin due to the close contact, further increase the expansion / contraction rate of the waist stretchable portion 210, and make it possible to achieve a close contact state.
  • the length D5 (natural state) of the non-stretchable region 211 in the product width direction W is configured to be longer than the length D6 (natural state) of the crotch stretchable portion 200a in the product width direction W.
  • the length D5 of the non-stretchable region 211 in the product width direction W may be 80 mm
  • the length D6 of the crotch stretchable portion 200a in the product width direction W may be 70 mm.
  • the disposable diaper 10 is disposed at a position close to the wearer's body when the disposable diaper 10 is worn.
  • the displacement of the disposable diaper 10 as a whole can be suppressed by keeping the non-stretchable region 211 away from the wearer's body.
  • the crotch expansion / contraction part 200a is formed at the edge of the crotch expansion / contraction part 200a in the product longitudinal direction L instead of being configured to be extensible / extendable at least in the product longitudinal direction L as in the case of the first embodiment described above.
  • a dart part may be formed.
  • such a dart part is configured by picking a part of the back sheet 60 and joining the sheets together in order to make the crotch stretchable part 200a a flat “bottom part”.
  • the crotch expansion / contraction part 200a is configured to be capable of expansion / contraction at least in the product longitudinal direction L as in the case of the first embodiment described above, and the crotch expansion / contraction part 200a is configured by a reinforcing sheet. Also good.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
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  • 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

L'invention concerne une couche jetable (10), qui comprend : une première portion d'inflexion (116) qui est formée sur un élément absorbant (40), qui s'étire dans la direction de la largeur (W) du produit et qui forme un point de base de pliage pour la couche jetable (10) ; et une deuxième partie d'inflexion (125) qui est formée sur l'élément absorbant (40), qui s'étire dans la direction de la largeur (W) du produit, qui forme le point de base de pliage pour la couche jetable (10), et qui est placée plus loin, par rapport un côté de la région de torse arrière, que la première portion d'inflexion (116). Une portion élastique d'entrejambe (200a) est placée indépendamment de la portion de maintien de torse (115) sans intersection avec la portion de maintien de torse (115), et une région non élastique (211) est formée entre une paire de portions élastique de taille (210).
PCT/JP2013/065173 2012-06-01 2013-05-31 Couche jetable WO2013180260A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012126232A JP6074164B2 (ja) 2012-06-01 2012-06-01 使い捨ておむつ
JP2012-126232 2012-06-01

Publications (1)

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WO2013180260A1 true WO2013180260A1 (fr) 2013-12-05

Family

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PCT/JP2013/065173 WO2013180260A1 (fr) 2012-06-01 2013-05-31 Couche jetable

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JP (1) JP6074164B2 (fr)
AR (1) AR091818A1 (fr)
TW (1) TWI612947B (fr)
WO (1) WO2013180260A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3056175B1 (fr) * 2014-12-26 2017-04-26 Unicharm Corporation Couche jetable
CN216823895U (zh) * 2018-12-26 2022-06-28 花王株式会社 吸收性物品
CN111374830A (zh) * 2018-12-29 2020-07-07 尤妮佳股份有限公司 带型尿布

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168902A (ja) * 1987-12-04 1989-07-04 Minnesota Mining & Mfg Co <3M> 人体輪郭合致型のおむつ及び使い捨ておむつを作る方法
JPH06277250A (ja) * 1993-03-30 1994-10-04 Jujo Kinbarii Kk 使い捨ておむつ
JP2000107223A (ja) * 1998-10-01 2000-04-18 Uni Charm Corp 使い捨ておむつ
WO2004062398A1 (fr) * 2003-01-10 2004-07-29 Zuiko Corporation Article de vetement et son procede de fabrication
JP2007151893A (ja) * 2005-12-06 2007-06-21 Daio Paper Corp 使い捨て紙おむつ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000093462A (ja) * 1998-09-22 2000-04-04 Shiseido Co Ltd 吸収性物品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168902A (ja) * 1987-12-04 1989-07-04 Minnesota Mining & Mfg Co <3M> 人体輪郭合致型のおむつ及び使い捨ておむつを作る方法
JPH06277250A (ja) * 1993-03-30 1994-10-04 Jujo Kinbarii Kk 使い捨ておむつ
JP2000107223A (ja) * 1998-10-01 2000-04-18 Uni Charm Corp 使い捨ておむつ
WO2004062398A1 (fr) * 2003-01-10 2004-07-29 Zuiko Corporation Article de vetement et son procede de fabrication
JP2007151893A (ja) * 2005-12-06 2007-06-21 Daio Paper Corp 使い捨て紙おむつ

Also Published As

Publication number Publication date
JP6074164B2 (ja) 2017-02-01
TWI612947B (zh) 2018-02-01
JP2013248263A (ja) 2013-12-12
TW201410219A (zh) 2014-03-16
AR091818A1 (es) 2015-03-04

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