WO2020256104A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2020256104A1
WO2020256104A1 PCT/JP2020/024139 JP2020024139W WO2020256104A1 WO 2020256104 A1 WO2020256104 A1 WO 2020256104A1 JP 2020024139 W JP2020024139 W JP 2020024139W WO 2020256104 A1 WO2020256104 A1 WO 2020256104A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic member
absorbent article
width direction
absorbent
sheet
Prior art date
Application number
PCT/JP2020/024139
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
工藤　悦子
夕貴 橋野
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
Priority to CN202080044503.2A priority Critical patent/CN114025728B/zh
Publication of WO2020256104A1 publication Critical patent/WO2020256104A1/ja

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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
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • 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
    • 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

Definitions

  • the present invention relates to an absorbent article.
  • an absorbent article having a pair of leak-proof cuffs extending in the front-rear direction on both sides of an absorbent body having an absorbent core is widely known.
  • the leak-proof cuff has an upright portion that can be erected by an elastic member having elasticity in the front-rear direction at least in the inseam region, an upright edge that serves as an upright fulcrum of the upright portion, and an upright portion in the front waist circumference area and the rear waist circumference region. It has a front-rear joint portion that is arranged on the outer side in the front-rear direction and is joined to the skin surface side of the absorbent body.
  • Patent Document 1 discloses an absorbent article in which the standing edge is arranged outside the absorption core in the width direction in the inseam region. Such absorbent articles can provide more excrement storage space than those with an upright edge located on the absorption core.
  • the absorbent core has high rigidity, it tends to give a feeling of strangeness to the wearer, and the wearing comfort of the absorbent article may deteriorate.
  • the front-rear joint may not overlap with the absorbent core in the plan view of the absorbent article. In this case, excrement may leak beyond the leak-proof cuff.
  • the standing edge is arranged at least outside the absorption core in the width direction, and the front-rear joint is arranged at a position where it does not overlap with the absorption core in the plan view of the absorbent article.
  • the sex article an absorbent article capable of suppressing the leakage of excrement beyond the leak-proof cuff is desired.
  • the absorbent article includes a front-rear direction, a width direction orthogonal to the front-rear direction, a thickness direction, a first waist circumference area, a second waist circumference area, the first waist circumference area, and the second waist circumference area.
  • the leak-proof cuff has an upright portion that can be erected by contraction of the first elastic member having elasticity in the front-rear direction at least in the inseam region, an upright edge that serves as an upright fulcrum of the upright portion, and the first. It has a front-rear joint portion that is arranged outside the upright portion in the front-rear direction in the girth region and the second girth region, and is formed by being joined to the skin surface side of the absorbent body. The upright edge is arranged in the inseam region at least outside the absorption core in the width direction. In a plan view of the absorbent article, at least one of the front-rear joints is arranged at a position that does not overlap with the absorbent core.
  • the absorbent article has a contracted portion that contracts in the anteroposterior direction due to contraction of a second elastic member arranged outside the erecting edge in the width direction in the inseam region.
  • FIG. 1 is a schematic front view of an absorbent article according to the present embodiment.
  • FIG. 2 is a schematic plan view of the absorbent article according to the present embodiment.
  • FIG. 3 is a schematic cross-sectional view taken along the F3-F3 cross section shown in FIG.
  • FIG. 4A is a schematic cross-sectional view taken along the F4A-F4A cross section shown in FIG. 2, and
  • FIG. 4B is a schematic cross-sectional view taken along the F4B-F4B cross section.
  • FIG. 5 is a schematic plan view of the absorbent article according to the present embodiment.
  • FIG. 6 is a diagram for explaining a leak-proof cuff.
  • FIG. 7 is a schematic cross-sectional view for explaining the leak-proof cuff.
  • FIG. 8 is a schematic plan view of the absorbent article according to the modified example.
  • the absorbent article includes a front-rear direction, a width direction orthogonal to the front-rear direction, a thickness direction, a first waist circumference area, a second waist circumference area, the first waist circumference area, and the second waist circumference area.
  • the leak-proof cuff has an upright portion that can be erected by contraction of the first elastic member having elasticity in the front-rear direction at least in the inseam region, an upright edge that serves as an upright fulcrum of the upright portion, and the first. It has a front-rear joint portion that is arranged outside the upright portion in the front-rear direction in the girth region and the second girth region, and is formed by being joined to the skin surface side of the absorbent body. The upright edge is arranged in the inseam region at least outside the absorption core in the width direction. In a plan view of the absorbent article, at least one of the front-rear joints is arranged at a position that does not overlap with the absorbent core.
  • the absorbent article has a contracted portion that contracts in the anteroposterior direction due to contraction of a second elastic member arranged outside the erecting edge in the width direction in the inseam region.
  • the upright part will not be supported stably. Therefore, it was found that the absorption core expanded by absorbing the excrement pushes the upright portion outward in the width direction, and the upright portion tends to fall outward in the width direction.
  • the anterior-posterior joint that is not located under the wearer for example, the anterior-posterior joint on the front side in the back position
  • the anterior-posterior joint is thickened by the absorption core. The movement in the longitudinal direction was difficult to be restricted, and the position of the front-rear joint was unstable.
  • the front-rear joint could not stably support the upright portion, and the upright portion was particularly liable to fall outward in the width direction.
  • the absorbent article has a contracted portion that contracts in the front-rear direction due to the contraction of the second elastic member, the standing portion does not easily fall outward in the width direction.
  • the contracted portion contracts in the front-rear direction
  • the contracted portion is lifted toward the skin surface side.
  • the upright edge on the inner side of the contraction portion in the width direction is lifted together with the contraction portion so that the upright portion can maintain its height.
  • the standing portion is less likely to fall outward in the width direction. As a result, it is possible to prevent excrement from leaking beyond the leak-proof cuff.
  • the absorbent article may have an exterior body arranged on the non-skin surface side of the absorbent body in the first waist circumference region.
  • the exterior body may have a waist elastic member having elasticity in the width direction.
  • at least a part of the front-rear joint may overlap with the waist elastic member. Since the front and rear joints are in close contact with the wearer's body due to the expansion and contraction of the waist elastic member, the position of the front and rear joints in the thickness direction is stable. As a result, the front-rear joint can stably support the upright portion, so that the upright portion can be prevented from falling outward in the width direction.
  • the waist elastic member may extend continuously from at least one of the pair of leak-proof cuffs to the other in the first waist circumference region.
  • the expansion and contraction of the elastic waist member causes the exterior body to come into close contact with the body between the pair of leak-proof cuffs. Therefore, the excrement that diffuses outward in the front-rear direction between the pair of leak-proof cuffs is less likely to diffuse to the outside in the front-rear direction than the waist elastic member, and the leakage of the excrement can be suppressed.
  • the absorbent article may have an exterior body arranged on the non-skin surface side of the absorbent body in the first waist circumference region.
  • the exterior body may have a waist elastic member having elasticity in the width direction.
  • the waist elastic member may be arranged at a position that does not overlap with the front-rear joint.
  • the absorbent article may have an exterior body arranged on the non-skin surface side of the absorbent body in the first waist circumference region.
  • the exterior body may have a waist elastic member having elasticity in the width direction.
  • a non-bonded region in which the absorbent body and the exterior body are not bonded may be provided.
  • the anterior-posterior junction may be located in the non-junction region.
  • the second elastic member may have an effective portion in which elasticity is exhibited.
  • the outer edge of the effective portion in the front-rear direction may be arranged inside the front-rear joint.
  • the front-rear joint portion is less likely to be affected by the contraction of the second elastic member. This makes it difficult for the front-rear joint to be pulled inward in the front-rear direction, and makes it easier to maintain the position of the front-rear joint. Therefore, the contraction force of the first elastic member can be maintained in the upright portion, and the uprightness of the upright portion can be maintained. As a result, it is possible to prevent excrement from leaking beyond the leak-proof cuff.
  • the absorbent article may have an exterior body arranged on the non-skin surface side of the absorbent body in the first waist circumference region.
  • the exterior body may have a waist elastic member having elasticity in the width direction.
  • the outer end portion of the upright portion in the front-rear direction may overlap with the exterior body.
  • the absorbent article is, for example, a pants-type disposable diaper, a tape-type disposable diaper, or a shorts-type sanitary napkin.
  • the absorbent article of the embodiment is a pants-type disposable diaper.
  • FIG. 1 is a schematic front view of the absorbent article 1 according to the present embodiment.
  • FIG. 2 is a schematic plan view of the absorbent article 1 according to the present embodiment. The schematic plan view shown in FIG. 2 shows an stretched state in which the absorbent article 1 is stretched to a state in which wrinkles are not formed in a state where the side joint portion 18 described later is unfolded.
  • FIG. 3 is a schematic cross-sectional view taken along the F3-F3 cross section shown in FIG. FIG.
  • FIG. 4 is a schematic cross-sectional view of the absorbent article according to the present embodiment.
  • FIG. 4A is a schematic cross-sectional view of the absorbent article in the waist circumference region on the front side, and is a schematic cross-sectional view along the F4A-F4A cross section shown in FIG.
  • FIG. 4B is a schematic cross-sectional view of the absorbent article in the rear waist circumference region, and is a schematic cross-sectional view along the F4B-F4B cross section shown in FIG.
  • FIG. 5 is a schematic plan view of the absorbent article according to the present embodiment.
  • FIG. 6 is a diagram for explaining a leak-proof cuff.
  • FIG. 6 is a diagram showing a state in which the leak-proof cuff stands up in the F6-F6 cross section shown in FIG.
  • FIG. 7 is a schematic cross-sectional view for explaining the leak-proof cuff.
  • FIG. 7 is a diagram showing a state in which the leak-proof cuff stands up in the F6-F6 cross section shown in FIG.
  • FIG. 7A is a diagram for explaining a conventional leakage-proof cuff.
  • FIG. 7B is a diagram for explaining the leakage-proof cuff according to the embodiment.
  • the center sheet described later is omitted.
  • the composite elastic sheet described later and the members arranged on the skin surface side of the composite elastic sheet are described in a simplified manner. It should be noted that in the cross-sectional view, for convenience of explanation, even if the members are separated in the thickness direction, they are in contact with each other in the thickness direction in the actual product.
  • the absorbent article 1 has a front-rear direction L and a width direction W that are orthogonal to each other.
  • the anteroposterior direction L is defined by the direction extending to the anterior side and the posterior side of the body.
  • the anteroposterior direction L is a direction extending anterior-posteriorly in the deployed absorbent article 1.
  • the absorbent article 1 has an orthogonal thickness direction T in both the front-rear direction L and the width direction W.
  • the thickness direction T extends to the skin surface side T1 facing the wearer side and the non-skin surface side T2 on the side opposite to the skin surface side.
  • the absorbent article 1 has a front waist circumference area S1, a rear waist circumference area S2, and an inseam area S3.
  • the front waist circumference area S1 is a region facing the front waist circumference (abdomen) of the wearer.
  • the rear waist circumference area S2 is an area facing the rear waist circumference (back) of the wearer, and includes an area on which the body (buttocks) is placed when worn.
  • the inseam area S3 is located in the inseam of the wearer and is a region sandwiched between the front waist area S1 and the rear waist area S2.
  • the "first waist circumference area” described in the claims may be the front waist circumference area S1, and the "second waist circumference area” described in the claims may be the rear waist circumference area S2, and vice versa. May be good.
  • a side joint portion 18 may be provided in which the end portion of the front waist circumference region S1 in the width direction W and the end portion of the rear waist circumference region S2 in the width direction W are joined.
  • the side joint portion 18 is defined by a portion in which the outer portion of the front waist circumference region S1 and the outer portion of the rear waist circumference region S2 are locked to each other.
  • the absorbent article 1 in the state where the side joint 18 is formed, has a waist opening 16 through which the wearer's body is passed and a pair of legs into which the wearer's legs are inserted.
  • the leg circumference opening 17 is formed.
  • the waist opening 16 may be defined by the front end edge S1F of the front waist circumference area S1 and the rear end edge S2R of the rear waist circumference area S2.
  • FIG. 2 shows a state in which the joint at the side joint portion 18 is released and the absorbent article 1 is unfolded.
  • the side joint portion 18 may extend along the front-rear direction L in each of the front exterior body 20 and the rear exterior body 30.
  • the boundary between the front waist area S1 and the inseam area S3 may be defined by the rear end edge of the side joint 18 provided on the front exterior body 20.
  • the boundary between the rear waist circumference area S2 and the inseam area S3 may be defined by the front end edge of the side joint portion 18 provided on the rear exterior body 30.
  • the inseam area S3 may be an area provided with the leg circumference opening 17.
  • the outer portion in the present invention is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is an outer edge in the width direction W.
  • the inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is an inner edge in the width direction W.
  • the front end portion and the rear end portion in the present invention are portions that occupy a certain range in the front-rear direction L including the edge in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L.
  • the outer edge includes a front edge and a trailing edge, and the outer edge includes a front edge and a trailing edge.
  • the absorbent article 1 may have an exterior body 15 and a main body 40.
  • the exterior body 15 overlaps the main body 40 in the thickness direction T.
  • the exterior body 15 may have a front exterior body 20 arranged in the front waist circumference region S1 and a rear exterior body 30 arranged in the rear waist circumference region S2.
  • the front exterior body 20 is an exterior body arranged on the non-skin surface side T2 of the main body portion 40 in the front waist circumference region S1.
  • the rear exterior body 30 is an exterior body that is separated from the front exterior body 20 in the front-rear direction L and is arranged on the non-skin surface side T2 of the main body portion 40 in the rear waist circumference region S2.
  • the exterior body 15 may have a cover sheet arranged on the skin surface side T1 of the main body portion 40.
  • the cover sheet includes a front cover sheet 27 provided on the skin surface side T1 of the main body portion 40 of the front waist circumference area S1 and a rear cover sheet 37 provided on the skin surface side T1 of the main body portion 40 of the rear waist circumference area S2.
  • the front cover sheet 27 and the rear cover sheet 37 may be made of a sheet such as a non-woven fabric.
  • the front cover sheet 27 may be composed of a portion in which the sheet constituting the front exterior body 20 is folded back to the skin surface side T1, or is composed of a sheet separate from the sheet constituting the front exterior body 20. May be good.
  • the rear cover sheet 37 may be composed of a portion in which the sheet constituting the rear exterior body 30 is folded back to the skin surface side T1, or is separate from the sheet constituting the rear exterior body 30. It may be composed of a sheet of.
  • the front exterior body 20 and the rear exterior body 30 may be made of a sheet such as a non-woven fabric.
  • the front exterior body 20 may have a first front seat 25 and a second front seat 26 located on the non-skin surface side T2 of the first front seat 25.
  • the front exterior body 20 may further include seats other than the first front seat 25 and the second front seat 26.
  • the rear exterior body 30 may have a plurality of sheets.
  • the front exterior body 20 may have a first rear seat 35 and a second rear seat 36 located on the non-skin surface side T2 of the first rear seat 35.
  • the rear exterior body 30 may further include seats other than the first rear seat 35 and the second rear seat 36.
  • the exterior body 15 may have a waist elastic member WE having elasticity in the width direction W.
  • the front waist elastic member 22 which is the waist elastic member WE having elasticity in the width direction W may be arranged in the front waist circumference region S1.
  • a rear waist elastic member 32 which is a waist elastic member having elasticity in the width direction W, may be arranged in the rear waist circumference region S2.
  • the front waist elastic member 22 may be arranged between the first front seat 25 and the second front seat 26, and the rear waist elastic member 32 is arranged between the first rear seat 35 and the second rear seat 36. May be done.
  • the waist elastic member WE may be composed of, for example, a thread rubber stretchable in the width direction W or an elastic sheet stretchable in the width direction W.
  • the waist elastic member WE may be composed of, for example, the exterior body 15 itself made of a stretchable sheet.
  • the waist elastic member WE of the present embodiment is made of thread rubber.
  • the front waist elastic member 22 has a first front waist elastic member 221 that continuously extends from one side end portion of the front side exterior body 20 to the other side end portion, and a width direction from the side end portion of the front side exterior body 20. It may have a second front waist elastic member 222 that extends inward of the W and does not extend to the center C of the widthwise W of the absorbent article 1. Further, the rear waist elastic member 32 includes a first rear waist elastic member 321 that continuously extends from one side end portion of the rear side exterior body 30 to the other side end portion, and a side end of the rear side exterior body 30.
  • the first front waist elastic member 221 and the first rear waist elastic member 321 may continuously extend from one of at least one pair of leakage-proof cuffs 70 to the other.
  • the main body 40 is arranged at least in the inseam area S3.
  • the main body portion 40 may be arranged over the front waist circumference area S1, the rear waist circumference area S2, and the inseam area S3.
  • the main body 40 is configured as a separate body from the front exterior body 20 and the rear exterior body 30, and is joined to the front exterior body 20 and the rear exterior body 30 in the front waist circumference area S1 and the rear waist circumference region S2, respectively.
  • the main body 40 may have an absorbent main body 41 and a pair of composite elastic sheets 60 arranged on the skin surface side T1 of the absorbent main body 41.
  • the absorbent body 41 has at least an absorbent core 50.
  • the absorption core 50 contains an absorption material.
  • the absorption core 50 may contain, for example, ground pulp or a highly absorbent polymer (SAP), or a mixture thereof.
  • SAP highly absorbent polymer
  • the absorption core 50 is arranged at least in the inseam area S3.
  • the absorption core 50 may be arranged in the front waist circumference region S1 and may be arranged in the rear waist circumference region S2.
  • the absorption core 50 may extend from the front waist circumference region S1 to the rear waist circumference region S2 in the front-rear direction L.
  • the absorption core 50 may be covered by a core wrap.
  • the absorbent main body 41 includes a center sheet 43 located on the skin surface side T1 of the absorbing core 50, a liquid impermeable sheet 46 located on the non-skin surface side T2 of the absorbing core 50, and liquid impermeable. It may have a non-skin surface sheet 47 arranged on the non-skin surface side T2 of the transparent sheet 46.
  • the absorbent body 41 of the present embodiment has a center sheet 43, a liquid-impermeable sheet 46, and a non-skin surface sheet 47 from the skin surface side T1 to the non-skin surface side T2 in the region in front of the absorption core 50. They are arranged in the order of.
  • the center sheet 43, the absorption core 50, the liquid permeable sheet 46, and the non-skin surface sheet 47 are arranged in this order from the skin surface side T1 to the non-skin surface side T2.
  • the center sheet 43 and the liquid impermeable sheet 46 may be arranged with the absorption core 50 interposed therebetween in the thickness direction T.
  • the center sheet 43 may have liquid permeability, and may be made of, for example, a non-woven fabric.
  • the center sheet 43 covers the center of the absorption core 50 in the width direction W.
  • the center sheet 43 may constitute a side sheet 62 and a skin surface sheet, which will be described later.
  • the liquid-impermeable sheet 46 may be liquid-impermeable, and may be made of, for example, a film. As shown in FIG. 4, the liquid-impermeable sheet 46 may be arranged on the non-skin surface side T2 rather than the side sheet 62.
  • the non-skin surface sheet 47 may be made of, for example, a non-woven fabric. As shown in FIG.
  • the absorbent main body 41 may have a non-skin side side sheet 48 arranged outside the absorption core 50 in the width direction W.
  • the non-skin side side sheet 48 may be arranged on the non-skin side T2 rather than the side sheet 62.
  • the non-skin side side sheet 48 may be made of, for example, a non-woven fabric.
  • the absorbent body 41 does not have to have the non-skin side side sheet 48.
  • the absorbent main body 41 is joined to the exterior body 15 via the main body joint MB.
  • the absorbent main body 41 is joined to the front exterior body 20 via the front main body joint 28, and is joined to the rear exterior 30 via the rear main body joint 38.
  • the absorbent article 1 may be provided with a non-bonded region NBR in which the absorbent main body 41 and the exterior body 15 are not bonded.
  • the length of the absorbent body 41 in the rear inseam area S3 in the width direction W is longer than the length of the absorbent body 41 in the front inseam area S3 in the width direction W. Good.
  • the outer edge of the absorbent body 41 may extend in the front-rear direction L along the composite telescopic sheet 60.
  • the pair of composite elastic sheets 60 extend in the front-rear direction L at both side portions of the absorbent main body 41 and are joined to the absorbent main body 41.
  • the composite elastic sheet 60 has elasticity in the front-rear direction L.
  • the composite telescopic sheet 60 has a pair of sheet layers 62p, as will be described later.
  • the pair of composite elastic sheets 60 may have a pair of side sheets 62, an upright elastic member 75, and a leg elastic member 85.
  • the side sheet 62 is arranged outside the center C of the width direction W of the absorbent article 1 in the width direction W.
  • the side sheet 62 covers the outer portion of the center sheet 43 on the skin surface side T1 of the center sheet 43.
  • the side seat 62 is composed of one seat.
  • the side sheet 62 is at least rearward of the center Lc of the absorbent article 1 in the front-rear direction L, and extends rearward while being curved toward the outside in the width direction W. May have.
  • the maximum width between the pair of side seats 62 in the rear inseam area S3 is larger than the maximum width between the pair of side seats 62 in the front inseam area S3.
  • the side seat 62 extends in the front-rear direction L while being curved. Therefore, in the inseam region S3 on the front side, the side seat 62 may be joined to the center seat 43 and the non-skin side side seat 48. In the rear inseam region S3, the side sheet 62 may be joined to the non-skin side side sheet 48 and the non-skin surface sheet 47.
  • the side sheet 62 is folded back from the first fold FL1 which is one fold extending in the front-rear direction L from the side sheet 62.
  • the side sheet 62 may be folded back so that the first fold FL1 is arranged in the leak-proof cuff 70 described later. Therefore, the first fold FL1 is arranged inside the side sheet 62 in the width direction W.
  • the edge 62E of the side sheet 62 in the width direction W is arranged outside the side sheet 62 in the width direction W, that is, on the leg circumference opening 17 side.
  • the edge 62E of the side sheet 62 is the edge (edge having a cut surface) of the side sheet 62 itself.
  • a pair of sheet layers 62p facing each other are formed by folding back the side sheets 62 with the first fold FL1 as a base point.
  • the pair of sheet layers 62p has a first sheet layer 621 and a second sheet layer 622.
  • the first sheet layer 621 is arranged on the skin surface side T1 at least outside the width direction W
  • the second sheet layer 622 is arranged on the non-skin surface side T2 at least outside the width direction W.
  • the first fold FL1 may define the boundary between the first sheet layer 621 and the second sheet layer 622.
  • the pair of sheet layers 62p themselves may be further folded back from the second fold FL2, which is a fold extending in the front-rear direction L, inside the width direction W of the side sheet 62. ..
  • the first sheet layer 621 may be arranged on the non-skin surface side T2
  • the second sheet layer 622 may be arranged on the skin surface side T1.
  • Each of the pair of sheet layers 62p, that is, the first sheet layer 621 and the second sheet layer 622 may have an edge 62E of one side sheet 62.
  • the edge 62E of the first sheet layer 621 and the edge 62E of the second sheet layer 622 overlap in the thickness direction T.
  • the edge 62E of the side sheet 62 may be arranged inside the width direction W of the absorbent body 41 with respect to the side edge in the width direction W. As a result, the edge 62E of the side sheet 62 is less likely to hit the wearer's skin, and deterioration of the touch can be suppressed.
  • the orthostatic elastic member 75 is an elastic member having elasticity in the front-rear direction L. Due to the contraction of the erecting elastic member 75, the erecting portion of the leak-proof cuff 70 can be erected on the skin surface side T1. That is, the orthostatic elastic member constitutes the "first elastic member" of the present invention.
  • the orthostatic elastic member 75 may be composed of, for example, a rubber thread or an elastic sheet.
  • the orthostatic elastic member 75 is composed of one or more elastic members. When the number of the orthostatic elastic members 75 is 2 or more, the orthostatic elastic members 75 may be arranged at intervals in the width direction W.
  • the orthostatic elastic member 75 is composed of a first orthostatic elastic member 751 and a second orthostatic elastic member 752.
  • the first standing elastic member 751 is located closest to the skin surface side T1 when the leak-proof cuff 70 is standing. Therefore, the first standing elastic member 751 is arranged at the position closest to the apex Ap of the leak-proof cuff 70.
  • the second standing elastic member 752 is located on the most non-skin surface side T2 when the leak-proof cuff 70 is standing. Therefore, the second standing elastic member 752 is arranged at the position farthest from the apex Ap (first fold FL1) of the leak-proof cuff 70 in the direction along the side sheet 62.
  • the side sheets 62 are further folded back from the second fold FL2 as a base point. Therefore, in FIG. 4, the first orthostatic elastic member 751 is the second orthostatic elastic member. It is arranged outside the width direction W of 752. As shown in FIG. 4, the absorbent article 1 is formed between the second standing elastic member 752 (the elastic member located on the non-skin surface side T2 when the leak-proof cuff 70 is standing) and the standing edge 73 described later.
  • the joint portion (in-sheet joint portion) 63 for joining the pair of sheet layers 62p to each other with an adhesive may be provided.
  • the joint portion 63 in the sheet may be, for example, an HMA (hot melt adhesive).
  • the leg elastic member 85 is an elastic member having elasticity in the front-rear direction L.
  • the leg elastic member 85 is arranged outside the standing edge 73 in the width direction W.
  • the leg elastic member 85 may be made of, for example, a rubber thread or an elastic sheet.
  • the leg elastic member 85 has an effective portion in which elasticity is exhibited. In the drawings of the present specification, only the effective portion where the elasticity of the leg elastic member 85 is exhibited is shown. Therefore, in the present embodiment, as shown in FIG. 5, the front end edge 85FE and the rear end edge 85RE of the leg elastic member 85 are the outer end edges of the effective portion of the leg elastic member 85 in the front-rear direction L.
  • the front end edge 85FE and the rear end edge 85RE of the leg elastic member 85 may be arranged inside the front-rear joint portion 711.
  • the front end edge 85FE of the leg elastic member 85 may be arranged on the rear side of the front joint portion 711F in the front-rear direction L, and the rear end edge 85RE of the leg elastic member 85 is on the front side of the rear joint portion 711R in the front-rear direction L. May be placed in.
  • the effective portion is a portion where the side sheet 62 is expanded and contracted together with the expansion and contraction of the leg elastic member 85.
  • the invalid portion that is not an effective portion is a portion in which only the leg elastic member 85 expands and contracts, and the side sheet 62 does not expand and contract.
  • the leg elastic member 85 is composed of one or more elastic members. When the number of leg elastic members 85 is 2 or more, the leg elastic members 85 may be arranged at intervals in the width direction W. When the number of leg elastic members 85 and the number of standing elastic members 75 are two or more, the distance between the leg elastic members 85 may be narrower than the distance between the standing elastic members 75 in the width direction W. Further, the number of leg elastic members 85 may be larger than the number of standing elastic members 75.
  • the leg elastic member 85 is composed of a first leg elastic member 851, a second leg elastic member 852, a third leg elastic member 853, and a fourth leg elastic member 854.
  • the first leg elastic member 851 is arranged on the innermost side in the width direction W
  • the fourth leg elastic member 854 is arranged on the outermost side in the width direction W.
  • a contraction portion 85R that contracts in the front-rear direction L due to contraction of the leg elastic member 85 is provided.
  • the width of the contracted portion 85R is at least from the innermost leg elastic member 85 (that is, the first leg elastic member 851) to the outermost leg elastic member 85 (that is, the fourth leg elastic member 854) in the width direction W. Is the length of. As shown in FIG. 4, the length of the contracted portion 85R may be longer than the length from the innermost leg elastic member 85 to the outermost leg elastic member 85.
  • the orthostatic elastic member 75 and the leg elastic member 85 are sandwiched between a pair of sheet layers 62p.
  • the standing elastic member 75 and the leg elastic member 85 are in contact with the sheet layer 62p.
  • the region outside the width direction W with respect to the fourth leg elastic member 854 arranged on the outermost side in the width direction W may be a non-bonded region in which the pair of sheet layers 62p are not bonded to each other.
  • the absorbent article 1 has a pair of leak-proof cuffs 70 extending in the front-rear direction L on both sides of the absorbent body 41.
  • the leak-proof cuff 70 can stand on the skin side T1.
  • the leak-proof cuff 70 may be composed of a composite telescopic sheet 60.
  • the leak-proof cuff 70 may have a leak-proof joint 71, an upright portion 72, and an upright edge 73.
  • the leak-proof joint 71 is a portion that joins the side sheet 62 (composite telescopic sheet 60) to the absorbent main body 41.
  • the leak-proof joint 71 may be made of an adhesive.
  • the inner edge of the leak-proof joint portion 71 in the width direction W is arranged outside the absorption core 50 in the width direction W.
  • the leak-proof joint 71 is located outside the front-rear joint portion 711 located outside the standing edge 73 in the front-rear direction L and outside the width direction W from the standing edge 73. It may have a width joint 712 to be arranged.
  • the front-rear joint portion 711 may have a front joint portion 711F arranged in the front waist circumference region S1 and a rear joint portion 711R arranged in the rear waist circumference region S2.
  • At least one of the front and rear joints 711 is arranged at a position that does not overlap with the absorption core 50.
  • the front joint portion 711F is arranged on the front side of the front end edge of the absorption core 50.
  • the rear joint portion 711R is arranged outside the side edge of the absorption core 50 in the width direction W.
  • at least a part of the front-rear joint portion 711 may overlap with the waist elastic member.
  • at least a part of the front joint portion 711F may overlap with the front waist elastic member 22.
  • the front waist elastic member 22 extending continuously in the width direction W from one side end portion of the front side exterior body 20 to the other side end portion is formed from one outer edge of the front joint portion 711F to the other. It continuously overlaps to the outer edge.
  • the end portion of the front waist elastic member 22 exists between one side end portion and the other side end portion of the front side exterior body 20 so that a part of the front joint portion 711F overlaps with the front waist elastic member 22. You may.
  • the rear joint portion 711R is the same as the front joint portion 711F.
  • the rear waist elastic member 32 continuously overlaps from one outer edge of the rear joint portion 711R to the other outer edge.
  • the front-rear joint portion 711 may be arranged in the non-joint region NBR. Therefore, the front joint portion 711F may be arranged so as not to overlap the front main body joint portion 28 in the thickness direction T.
  • the rear joint portion 711R may be arranged so as not to overlap the rear main body joint portion 38 in the thickness direction T.
  • the upright portion 72 can be upright by one or more upright elastic members 75.
  • the standing portion 72 stands up by the contraction of the standing elastic member 75.
  • the outer end portion of the standing portion 72 in the front-rear direction L may overlap with the exterior body 15. As shown in FIG.
  • the front end portion 72F of the upright portion 72 overlaps with the front exterior body 20.
  • the rear end portion 72R of the standing portion 72 overlaps with the rear exterior body 30.
  • the standing edge 73 serves as a standing fulcrum of the standing portion 72.
  • the upright edge 73 is composed of an inner edge of the front-rear joint 711 (a rear edge of the front joint 711F and a front edge of the rear joint 711R) and an inner edge of the width joint 712.
  • the absorbent article 1 may have a pair of leg gathers 80.
  • the leg gather 80 may be composed of a composite telescopic sheet 60.
  • the leg gather 80 is arranged outside the upright edge 73 in the width direction W.
  • the leg gather 80 has a contraction portion 85R.
  • the contracted portion 85R contracts in the front-rear direction L in the inseam region S3 due to the contraction of the leg elastic member 85 arranged outside the standing end edge 73 in the width direction W. That is, the leg elastic member 85 constitutes the "second elastic member" of the present invention.
  • the leak-proof cuff 70 and the leg gather 80 are composed of a pair of sheet layers 62p.
  • the pair of sheet layers 62p are arranged on the outermost side in the width direction W from the position P1 in contact with the first standing elastic member 751 located closest to the skin surface when the leak-proof cuff 70 stands. It extends continuously to the position P2 in contact with the fourth leg elastic member 854. Therefore, both of the pair of sheet layers 62p overlap all the leg elastic members 85 in the thickness direction T.
  • the pair of sheet layers 62p exceeds the first standing elastic member 751 and the first fold FL1, that is, the leak-proof cuff 70. It extends continuously to the apex Ap. Further, the pair of sheet layers 62p extends beyond the fourth leg elastic member 854 to the outside in the width direction W.
  • the component members arranged on the non-skin surface side T2 of the side sheet 62 and directly or indirectly joined to the side sheet 62 are more than the standing edge 73. It may extend outward in the width direction W.
  • the constituent members may overlap one or more leg elastic members 85 in the thickness direction T, and preferably overlap all leg elastic members 85.
  • the constituent member is at least one of a center sheet 43, a liquid-impermeable sheet 46, a non-skin surface sheet 47, and a non-skin side side sheet 48.
  • the center sheet 43 and the non-skin side side sheet 48 are directly joined to the side sheet 62.
  • the liquid-impermeable sheet 46 is indirectly joined to the side sheet 62 via the non-skin side side sheet 48.
  • the non-skin surface sheet 47 is directly bonded to the side sheet 62 (see FIG. 4A), and is indirectly bonded to the side sheet 62 via the liquid-impermeable sheet 46 and / or the non-skin side side sheet 48. ing.
  • the fourth leg elastic member 854 arranged on the outermost side in the width direction W from the first standing elastic member 751 located on the skin surface side T1 when the leak-proof cuff 70 stands up. Since the standing edge 73 exists in the meantime, a pair of sheet layers 62p exists in the vicinity of the standing edge 73. Therefore, as shown in FIG. 6, even if the excrement E flowing on the surface of the absorbent article 1 and moving to the outside in the width direction W exudes from the second sheet layer 622 to the outside in the width direction W, the first The sheet layer 621 can prevent exudation to the outside in the width direction W.
  • the in-sheet joint portion 63 is provided between the second upright elastic member 752 and the upright end edge 73, the excrement is collected by the in-sheet joint portion 63 in the outer first sheet layer in the width direction W. It becomes difficult to reach 621 (see FIG. 6). Thereby, the leakage of the excrement generated by the excrement exuding to the outside of the width direction W of the leakage-proof cuff 70 can be suppressed.
  • the front-rear joint portion 711 does not overlap with the highly rigid absorption core 50, the upright portion 72 is not stably supported. Therefore, as shown in FIG. 7A, the absorption core 50 expanded by absorbing the excrement pushes the upright portion 72 to the outside of the width direction W, and the upright portion 72 easily falls to the outside of the width direction W. I found out.
  • the front-rear joint portion 711 not arranged under the wearer for example, the front joint portion 711F in the lying state
  • the front-rear joint portion 711 is the absorption core 50.
  • the movement in the thickness direction T was difficult to be restricted, and the position of the front-rear joint portion 711 was unstable. As a result, it was found that the front-rear joint portion 711 could not stably support the upright portion 72, and the upright portion 72 was particularly liable to fall outward in the width direction W.
  • the absorbent article 1 has a contracted portion 85R that contracts in the front-rear direction L due to the contraction of the leg elastic member 85
  • the standing portion 72 is less likely to fall outward in the width direction W.
  • the contracted portion 85R contracts in the front-rear direction L
  • the contracted portion 85R is lifted to the skin surface side T1 as shown in FIG.
  • the upright edge 73 By lifting the upright edge 73 together with the contracted portion 85R, the upright portion 72 can maintain its height.
  • the outside of the leak-proof joint 71 in the width direction W is lifted more toward the skin surface side T1 than the inside of the width direction W of the leak-proof joint 71, the width direction is wider than that of the leak-proof joint 71.
  • the upright portion 72 located inside the sill is less likely to fall outward in the width direction W. As a result, it is possible to prevent the excrement E from leaking beyond the leak-proof cuff 70.
  • the contracted portion 85R is arranged in at least a part of the extension region extending outward in the width direction from the standing edge 73 located outside the standing portion 72 in the width direction.
  • the front-rear joint portion 711 is arranged at a position where it does not overlap the absorption core 50, if the standing edge 73 overlaps the absorption core 50 in the inseam region S3, the absorption core 50 expands.
  • the upright edge 73 (that is, the upright portion 72) moves to the skin surface side T1 together with the outer surface of the absorption core 50. Therefore, the problem that the expanded absorption core 50 tilts the upright portion 72 outward in the width direction does not occur.
  • the pair of sheet layers 62p are continuously extended in the vicinity of the standing edge 73 in the width direction W, the rigidity in the vicinity of the standing edge 73 is higher than that in the case where a single sheet layer is extended, for example. It gets higher. Therefore, the standing portion 72 can be stably supported.
  • the front-rear joint portion 711 since at least a part of the front-rear joint portion 711 overlaps with the waist elastic member WE in the thickness direction T, the front-rear joint portion 711 comes into close contact with the wearer's body due to the expansion and contraction of the waist elastic member WE. As a result, the position of the front-rear joint portion 711 in the thickness direction T is stable, and the front-rear joint portion 711 can stably support the upright portion 72. Therefore, it is possible to prevent the standing portion 72 from falling outward in the width direction W. Further, the waist elastic member WE overlapping the front-rear joint portion 711 extends continuously from one of at least one pair of leakage-proof cuffs 70 to the other.
  • the exterior body 15 comes into close contact with the body between the pair of leakage-proof cuffs 70. Therefore, the excrement that diffuses to the outside of the front-rear direction L between the pair of leakage-proof cuffs 70 is less likely to diffuse to the outside of the front-rear direction L than the waist elastic member WE, and the leakage of the excrement can be suppressed.
  • the front-rear joint portion 711 is arranged in the non-joint region NBR. Even if the exterior body 15 contracts in the width direction W due to the contraction of the waist elastic member WE, the non-bonded region NBR of the absorbent main body 41 is not easily affected by the contraction of the waist elastic member WE. Therefore, the contraction force of the waist elastic member WE in the width direction W becomes difficult to act on the front-rear joint portion 711. As a result, the upright edge 73 together with the front-rear joint portion 711 becomes difficult to approach the absorption core 50, and the upright portion 72 can be made difficult to be tilted to the outside in the width direction W by the expanded absorption core 50.
  • the front-end edge 85FE and the rear-end edge 85RE which are the outer edge of the effective portion of the leg elastic member 85, are arranged inside the front-rear joint portion 711, so that the front-rear joint portion 711 becomes a leg. It becomes less susceptible to the shrinkage of the elastic member 85. As a result, the front-rear joint portion 711 is less likely to be pulled inward in the front-rear direction L, and the position of the front-rear joint portion 711 can be easily maintained. Therefore, the contraction force of the standing elastic member 75 can be maintained, and the standing property of the standing portion 72 can be maintained. As a result, it is possible to prevent excrement from leaking beyond the leak-proof cuff 70.
  • the wearer attaches the absorbent article 1 after the exterior body 15 contracted by the waist elastic member WE is extended in the width direction W. Therefore, when the front end portion 72F and the rear end portion 72R, which are the outer ends of the standing portion 72 in the front-rear direction L, overlap with the exterior body 15, the standing portion 72 moves to the outside in the width direction W due to the extension of the exterior body 15.
  • the wearer can wear the absorbent article. As a result, the standing portion 72 can be made less likely to be tilted to the outside of the width direction W by the expanded absorption core 50 as compared with the case where the standing portion 72 is arranged inside the width direction W.
  • the contracted portion 85R can be easily lifted to the skin surface side T1, and the standing edge 73 can be stably lifted.
  • the rigidity of the leg gather 80 can be increased, and the flatness of the leg gather 80 can be easily maintained.
  • the leg gathers can be easily fitted to the wearer's skin on the surface, and the wearer's leg circumference can be suppressed from being locally pressed.
  • FIG. 8 is a schematic plan view of the absorbent article according to the modified example. The same description as in the embodiment will be omitted.
  • the waist elastic member WE may be arranged at a position that does not overlap with the front-rear joint portion 711. As a result, the contraction force of the waist elastic member WE in the width direction W becomes difficult to act on the front-rear joint portion 711.
  • the standing edge 73 which is the standing fulcrum of the standing portion 72 together with the front-rear joint portion 711, becomes difficult to approach the absorption core, and the standing portion 72 can be made difficult to be tilted to the outside in the width direction W by the expanded absorption core 50. ..
  • the second front waist elastic member 222 is arranged as the waist elastic member WE in the front waist circumference region S1. Further, in the rear waist circumference region S2, all of the first rear waist elastic members 321 that continuously extend from one side end portion of the rear side exterior body 30 to the other side end portion are behind the front and rear joint portions 711. It is located on the side.
  • the leak-proof cuff 70 and the leg gather 80 are formed by one side sheet 62, but the present invention is not limited to this.
  • the leak-proof cuff 70 and the leg gather 80 may be formed of separate sheets.
  • both the front joint portion 711F and the rear joint portion 711R are arranged at positions that do not overlap with the absorption core 50, but the present invention is not limited to this.
  • One of the front joint portion 711F and the rear joint portion 711R may be arranged at a position that does not overlap with the absorption core 50, and the other may be arranged at a position that does not overlap with the absorption core 50.
  • each modification, and the configuration of the absorbent article 1 according to the other embodiment can be appropriately combined.

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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)
PCT/JP2020/024139 2019-06-20 2020-06-19 吸収性物品 WO2020256104A1 (ja)

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US7137635B2 (en) * 2001-05-18 2006-11-21 K-2 Corporation Expandable in-line skate

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JP2001104372A (ja) * 1999-10-13 2001-04-17 Kao Corp 使い捨ておむつ
JP2008194160A (ja) * 2007-02-09 2008-08-28 Livedo Corporation 吸収性物品
JP2009095636A (ja) * 2007-09-25 2009-05-07 Oji Nepia Kk 使い捨ておむつ
JP2016032588A (ja) * 2014-07-31 2016-03-10 ユニ・チャーム株式会社 吸収性物品
JP2017205484A (ja) * 2016-05-16 2017-11-24 ユニ・チャーム株式会社 パンツ型使い捨ておむつ

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JP5270416B2 (ja) * 2009-03-25 2013-08-21 ユニ・チャーム株式会社 吸収性物品
JP6137589B2 (ja) * 2012-06-11 2017-05-31 花王株式会社 吸収性物品
JP6132624B2 (ja) * 2013-03-29 2017-05-24 ユニ・チャーム株式会社 使い捨て着用物品
CN103263321B (zh) * 2013-06-06 2015-04-15 福建恒安集团有限公司 一种一次性吸收物品
JP5592578B1 (ja) * 2014-02-21 2014-09-17 ユニ・チャーム株式会社 パンツ型の着用物品
JP6427535B2 (ja) * 2016-06-06 2018-11-21 ユニ・チャーム株式会社 吸収性物品
JP6711739B2 (ja) * 2016-11-30 2020-06-17 ユニ・チャーム株式会社 吸収性物品
JP6397947B2 (ja) * 2017-02-28 2018-09-26 ユニ・チャーム株式会社 パンツ型吸収性物品
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JP2001104372A (ja) * 1999-10-13 2001-04-17 Kao Corp 使い捨ておむつ
JP2008194160A (ja) * 2007-02-09 2008-08-28 Livedo Corporation 吸収性物品
JP2009095636A (ja) * 2007-09-25 2009-05-07 Oji Nepia Kk 使い捨ておむつ
JP2016032588A (ja) * 2014-07-31 2016-03-10 ユニ・チャーム株式会社 吸収性物品
JP2017205484A (ja) * 2016-05-16 2017-11-24 ユニ・チャーム株式会社 パンツ型使い捨ておむつ

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