WO2017199300A1 - Couche jetable de type culotte et procédé de port de couche jetable de type culotte - Google Patents

Couche jetable de type culotte et procédé de port de couche jetable de type culotte Download PDF

Info

Publication number
WO2017199300A1
WO2017199300A1 PCT/JP2016/064504 JP2016064504W WO2017199300A1 WO 2017199300 A1 WO2017199300 A1 WO 2017199300A1 JP 2016064504 W JP2016064504 W JP 2016064504W WO 2017199300 A1 WO2017199300 A1 WO 2017199300A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent
pants
absorbent pad
type disposable
disposable diaper
Prior art date
Application number
PCT/JP2016/064504
Other languages
English (en)
Japanese (ja)
Inventor
貴仁 永井
祐介 川上
純子 園田
市川　誠
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 CN201680085775.0A priority Critical patent/CN109310547B/zh
Publication of WO2017199300A1 publication Critical patent/WO2017199300A1/fr
Priority to PH12018502240A priority patent/PH12018502240A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • 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
    • 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
    • A61F13/505—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable parts

Definitions

  • the present invention relates to a pants-type disposable diaper and a method for attaching a pants-type disposable diaper.
  • a leak-barrier cuff (leak-barrier wall portion) is provided on both sides of the main body (absorbent main body), and in the middle portion which is a region applied to the wearer's thigh when worn
  • a disposable diaper in which it is difficult for the leak-barrier cuff to protrude to the outside (the side of the diaper) by shortening the erectable length of the leakable cuff and for preventing lateral leakage.
  • the separate absorption pad When using a disposable diaper, the separate absorption pad may be accumulated and used for the inner side (skin side) of a diaper.
  • skin side the inner side of a diaper.
  • the leak-proof wall is disposed by covering the leak-proof wall with the absorbent pad. Was not working, and there was a problem such as excrement leaked to the clothes side.
  • the main invention for achieving the above object comprises an absorbent main body provided with an absorbent body having a longitudinal direction and a lateral direction which cross each other, and an elastic member which is expanded and contracted in the longitudinal direction, and the lateral of the absorbent main body A pair of leak-proof walls provided on both sides of the direction, and an outer layer sheet provided on the non-skin side of the absorbent main body, and liquid absorbent absorbent on the skin side in the thickness direction of the absorbent main body It is a pants-type disposable diaper in which a pad can be attached and removed, wherein the pair of leak-barrier walls is at a position where the lateral length of the outer layer sheet is at least at least in the longitudinal direction.
  • the distance between the inner ends in the lateral direction of the pair of joint portions is smaller than the lateral width of the absorbent pad.
  • An absorbent main body comprising an absorbent body having a longitudinal direction and a lateral direction intersecting each other, and an elastic member expandable and contractible in the longitudinal direction, and a pair of leakage preventing means provided on both sides in the lateral direction of the absorbent main body
  • a pants-type disposable diaper comprising a wall and an outer layer sheet provided on the non-skin side of the absorbent body, wherein the absorbent pad can be attached and removed to the skin side in the thickness direction of the absorbent body.
  • the pair of leakage preventing walls have a joint portion in which the one side faces in the thickness direction are joined to each other at a position where the lateral length of the outer layer sheet is at least minimal in the longitudinal direction. And the absorption at the minimum position when the absorbent main body and the leak-proof wall are extended so that the lengths of the absorbent main body and the leak-proof wall become maximum in the lateral direction.
  • the lateral width of the body and the The sum of the double of the distance between the lateral end of the absorbent body and the joint in the wall is such that the absorption pad length is maximized in the lateral direction.
  • the absorbent pad When the absorbent pad is inserted into the pants-type disposable diaper when the absorbent pad is extended so that the length of the absorbent pad becomes maximum in the lateral direction when the pad is extended, the absorbent pad is larger than the sum of the lateral width of the absorbent pad and the double of the thickness of the absorbent pad at the minimum position.
  • the pants-type disposable diaper has a portion in which the distance between the inner ends in the lateral direction of the joint portion is narrower than the lateral width of the absorbent pad.
  • the lateral ends of the absorbent pad are accommodated in the space between the junction of the leakproof wall and the skin side of the absorbent body. It is possible to insert the absorbent pad without interfering with or overlying the leakproof wall. Moreover, since the inserted absorbent pad is held down in the thickness direction by the joint portion of the leakproof wall, the absorbent pad is prevented from being separated. Thereby, while making position shift of an absorption pad hard to produce, it can control that excrement leaks outside the diaper by the original function of a leak-proof wall.
  • the absorbent pad has a pair of absorbent pad leakage barriers on both sides in the lateral direction, and the lateral direction of the pair of absorbent pad leakage barriers at the minimum position. It is desirable that the distance between the two is smaller than the distance between the inner ends in the lateral direction of the pair of joints.
  • the leak-proof wall of the absorption pad is erected and disposed between the pair of leak-proof walls provided in the absorbent main body, double leak prevention in the lateral direction It becomes arrangement that a wall is provided. Thereby, it becomes easy to control that excrement leaks out of the underpants type disposable diaper.
  • the absorbent main leakage barrier located on both sides of the leakage barrier of the absorption pad prevents the leakage barrier of the absorption pad from spreading excessively outward in the lateral direction, and the misalignment of the leakage barrier is also achieved. It becomes difficult to occur. This ensures good fit.
  • a plurality of leak-barrier elastic members that extend and contract in the longitudinal direction are provided in the lateral direction on the leak-barrier wall, and in the lateral direction, more than the joint portion It is desirable that the number of the leakproof wall elastic members disposed outside is larger than the number of the leakproof wall elastic members disposed inside the joint portion.
  • a pants-type disposable diaper by arranging a large number of elastic members in a region where the rigidity on the outer side in the lateral direction is lower than that of the junction in the leakproof wall, the region corresponds to a curved surface according to the unevenness of the wearer. To improve the fit to the skin of the wearer. Further, by providing a plurality of elastic members, it is difficult to concentrate the contraction force (pressure) acting on the leak-proof wall in one place, and it is possible to suppress the deterioration of the wearing comfort of the underpants type disposable diaper.
  • the lateral direction of the plurality of the leak-barrier elastic members disposed outside the joint is more in the lateral direction than in the lateral direction.
  • the leakage preventing wall elastic members disposed on the inner side the leakage preventing wall elastic member located on the outermost side and the leakage preventing wall elastic member located on the outer side of the joint portion are the innermost. It is desirable that the lateral distance from the located leakproof wall elastic member be wider.
  • the absorbent pad has a liquid absorbent pad absorber, and the length of the pad absorber is maximized in the lateral direction at the minimum position.
  • the width of the pad absorber when the pad absorber is stretched is equal to the width of the absorber when the absorber is stretched so that the length of the absorber becomes maximum in the lateral direction. It is desirable to be wide.
  • the absorbent main body has a structure in which it is difficult for the absorbent main body to sag downward due to the joint portion provided in the leak-proof wall, so that the pad absorber is located downward even if it is absorbed when excrement is absorbed. Less likely to sag, less likely to deteriorate fit.
  • the absorbent pad has a liquid absorbent pad absorber, and the length of the pad absorber is maximized in the lateral direction at the minimum position.
  • the width of the pad absorber when the pad absorber is stretched is equal to the width of the absorber when the absorber is stretched so that the length of the absorber becomes maximum in the lateral direction. It is desirable that it is wide.
  • the absorbent main body has a structure in which the absorbent main body is unlikely to sag downward due to the joint portion provided on the leak-proof wall, so that the pad absorber is positioned downward even if the excrement is absorbed to be heavy. Less likely to sag, less likely to deteriorate fit.
  • the absorber has a constricted portion between both ends of the absorber in the longitudinal direction, and in the thickness direction, the pair of bonding portions are respectively connected to the absorber It is desirable that they do not overlap, and in the lateral direction, the distance between the pair of joints is shorter than the length at both longitudinal ends of the absorber.
  • the pants-type disposable diaper is provided with an inner layer sheet provided on the skin side of the absorbent main body, and the pair of leak preventing walls are end-joined to the inner layer sheet at both end portions in the longitudinal direction.
  • the pants-type disposable diaper having a part, and the non-junction part where the leak preventing wall is not joined in the thickness direction between the junction part and the end junction part in the longitudinal direction;
  • the non-joint portion of the leak-barrier having low rigidity and easily deformed acts like a pocket, and the widest part of the absorbent pad can be accommodated completely. It becomes possible.
  • the end joint has a narrow gap, even if the position of the absorbent pad is shifted in the longitudinal direction, the widest part of the absorbent pad is caught on the end joint, so the longitudinal direction of the absorbent pad It becomes easy to control the position shift in
  • the ventral side end portion of the outer layer sheet in the longitudinal direction is a ventral side folded portion folded back in the longitudinal direction, and the back end portion of the outer layer sheet in the longitudinal direction And a dorsal folded portion folded back inward in the longitudinal direction, and a distance between both ends in the longitudinal direction of the absorbent pad is the longitudinal inner end portion of the ventral folded portion
  • the distance between the longitudinal inner end of the dorsal fold and the longitudinal direction is shorter than the longitudinal direction.
  • an absorbent main body provided with an absorbent body having a longitudinal direction and a lateral direction crossing each other, and an elastic member capable of expanding and contracting in the longitudinal direction, and a pair of the absorbent main body provided on both sides in the lateral direction
  • the leak-proof wall has a joint portion in which the surfaces on one side in the thickness direction are joined to each other at a position where the lateral length of the outer layer sheet in the longitudinal direction is minimized.
  • the lateral direction of the absorbent main body at the minimum position when the absorbent main body and the leakage barrier are elongated so that the length of the absorbent main body and the leakage barrier is maximized The width of the leak-proof wall, and The absorbent pad when the absorbent pad is extended such that the sum of the sum of the end of the direction and the distance between the junction and the length of the absorbent pad in the lateral direction is maximized
  • the absorbent pad is larger than the sum of the width of the absorbent pad and twice the thickness of the absorbent pad at the minimum position when inserted into the pants-type disposable diaper
  • a pants-type disposable diaper having a portion in which a distance between inner ends in the lateral direction of the pair of joint portions is narrower than a width of the lateral direction of the absorbent pad is inserted into a wearer.
  • the absorbent pad is disposed between the crotch of the wearer, and the absorbent main body overlaps the non-skin side of the absorbent pad disposed. And an absorbent pad inserting step of inserting the absorbent pad into the underpants-type disposable diaper, and wearing the underpants-type disposable diaper on the wearer. The method becomes clear.
  • the absorbent pad has a pair of absorbent pad leakproof walls on both sides in the lateral direction, and in the minimum position, the absorbent pad leaks the pair of absorbent pad leakproof walls. It is desirable that the distance in the lateral direction is narrower than the distance between the inner ends in the lateral direction of the pair of joints.
  • the region corresponds to the unevenness of the wearer.
  • the curved surface is easily formed, and the fit to the skin of the wearer is improved.
  • it is difficult to concentrate the contraction force (pressure) acting on the leak-proof wall in one place, and it is possible to suppress the deterioration of the wearing comfort of the underpants type disposable diaper.
  • the joining is performed in the lateral direction more than the lateral intervals of the plurality of the leak-barrier elastic members disposed outside the joining portion.
  • the leak-barrier elastic members disposed on the inner side than the portion the leak-barrier elastic member located on the outermost side and the leak-barrier elastic member located on the outer side than the joint portion are the most. It is desirable that the lateral distance between the inner side and the leakproof wall elastic member be wider.
  • the absorbent pad has a liquid absorbent pad absorber, and the length of the pad absorber is maximized in the lateral direction at the minimum position.
  • the width of the pad absorber when the pad absorber is stretched is the width of the absorber when the absorber is stretched so that the length of the absorber becomes maximum in the lateral direction. It is desirable to be wider than the width.
  • the absorbent main body has a structure in which it is difficult for the absorbent main body to sag downward due to the joint portion provided in the leak-proof wall, so that the pad absorber is located downward even if it is absorbed when excrement is absorbed. Less likely to sag, less likely to deteriorate fit.
  • the pad absorbent body has a narrow portion having the narrowest width in the lateral direction in a region between both ends of the absorbent pad in the longitudinal direction. It is desirable that the joint portion and the narrow portion overlap in the longitudinal direction, and the length of the joint portion in the longitudinal direction is longer than the length of the narrow portion in the longitudinal direction.
  • the junction is formed in the area within the constriction of the absorbent body, and the junction in the region causes the leak-proof wall to be folded over and the rise height of the leak-proof wall Can be made too expensive.
  • the joint portion does not overlap with the absorber, the joint portion with high rigidity is less likely to be pressed against the body (skin side) of the wearer when worn, and the deterioration of the touch when wearing the diaper can be suppressed.
  • FIG. 1 is a plan view of the diaper 1 in the unfolded and stretched state.
  • FIG. 2 is a schematic perspective view of the diaper 1 as viewed from the ventral side.
  • 3A is a schematic cross-sectional view taken along the line AA in FIG. 1
  • FIG. 3B is a schematic cross-sectional view taken along the line BB in FIG. 1A
  • FIG. 3C is a schematic cross-sectional view taken along the line CC in FIG. .
  • the "extended state" in FIG. 1 is a state in which the product (diaper 1) is stretched without any problems, specifically, the dimensions of each member (for example, back sheet 30 etc. described later) constituting the diaper 1 are It refers to a state of being stretched to a length that matches or approximates to the dimensions of the member itself.
  • the diaper 1 in the unfolded state of FIG. 1, has a longitudinal direction and a width direction as three directions orthogonal to each other. And below, the thing of the one side and the other side of the longitudinal direction in this deployment state is also called “ventral side” and “back side”, respectively.
  • the above-mentioned width direction in the unfolded state is the same direction as the above-mentioned lateral direction in the pants-type state. Therefore, in the following, the width direction is also referred to as "lateral direction”.
  • the longitudinal direction of the unfolded state is a direction along the longitudinal direction of the pant type state. In addition, as shown in FIG.
  • the direction perpendicular to the longitudinal direction (longitudinal direction) and the lateral direction (width direction) is referred to as “thickness direction”
  • the side in contact with the skin of the person to be worn is referred to as “skin side”
  • the other side is called “non-skin side”.
  • the diaper 1 has a ventral waist portion 3, a back waist portion 4 and a crotch portion 5 in the longitudinal direction.
  • the ventral torso portion 3 is a portion located on the ventral side of the wearer when the diaper 1 is worn.
  • the back waistline portion 4 is a portion positioned on the back side of the wearer when the diaper 1 is worn.
  • a crotch 5 is provided between the ventral waist part 3 and the back waist part 4.
  • Diaper 1 of this embodiment has absorptive main part 10, top sheet 20, back sheet 30, and leak-proof wall 50. Then, from the unfolded state of FIG. 1, the absorbent main body 10 is folded in half with the predetermined position CL10 in the longitudinal direction (longitudinal direction) of the absorbent main body 10 as a folding position, and the belly facing each other in this folded state When the side waist portion 3 and the back side waist portion 4 are joined by welding or the like at the abdominal side edge portion 3es and the back side edge portion 4es, these waist portions 3 and 4 are annularly connected to each other. It becomes the diaper 1 of the pants type state in which the waist-surrounding opening BH and a pair of leg-surrounding openings LH and LH as shown in FIG. 2 are formed.
  • the absorbent main body 10 has a function of absorbing excrement such as urine, and as shown in FIG. 1, has a substantially rectangular shape in a plan view, and the center in the horizontal direction while aligning its longitudinal direction with the longitudinal direction of the diaper 1. Is located in The absorbent main body 10 has a liquid absorbent absorbent body (absorbent core) 11 and a core wrap sheet 12 which covers the outer peripheral surface of the absorbent body 11. Further, leak preventing walls 50 are provided on both sides in the lateral direction of the absorbent main body 10. The details of the leakproof wall 50 will be described later.
  • the absorbent body 11 is a liquid absorbent fiber such as pulp fiber molded into a predetermined shape, and a superabsorbent polymer (so-called SAP) or the like is mixed therein.
  • the absorbent body 11 has a generally hourglass shape in plan view, and the central portion in the longitudinal direction has a constricted portion 11 c recessed inward in the lateral direction. That is, the absorber 11 has a constricted portion 11c having a smaller dimension in the lateral direction than the longitudinal direction end portions 11ea and 11eb of the absorber 11 at a position between the longitudinal direction end portions 11ea and 11eb.
  • the core wrap sheet 12 is a liquid-permeable sheet member that covers the outer peripheral surface of the absorber 11, and tissue paper, non-woven fabric, and the like can be used.
  • the top sheet 20 is a liquid-permeable sheet member (inner layer sheet) that is disposed on the skin side surface in the thickness direction of the absorbent main body 10 and that contacts the skin of the wearer when the diaper 1 is worn.
  • the top sheet 20 of the present embodiment is formed of, for example, an air through nonwoven fabric, a spunbond nonwoven fabric, or the like.
  • the back sheet 30 is a sheet member (outer layer sheet) which is disposed on the non-skin side in the thickness direction of the absorbent main body 10 and constitutes the outer layer of the diaper 1.
  • the back sheet 30 has a back film 31, an upper outer layer sheet 32 and a lower outer layer sheet 33.
  • the back film 31 is a liquid impermeable and moisture permeable sheet member disposed on the non-skin side of the absorbent main body 10, and is formed of, for example, a resin film.
  • the upper outer layer sheet 32 and the lower outer layer sheet 33 are flexible sheet-like members disposed on the non-skin side of the back film 31 while being overlapped in the thickness direction, and are formed of, for example, a spunbond nonwoven fabric.
  • the upper outer layer sheet 32 and the lower outer layer sheet 33 have the same shape at least in the ventral waist portion 3 and the back waist portion 4, and have a generally hourglass shape as shown in FIG. 1 as a whole. That is, the back sheet 30 has a narrow portion 30 c in which the central portion (the crotch 5) in the longitudinal direction is recessed in the lateral direction between the ventral waist portion 3 and the back waist portion 4.
  • the end 30 erion on the longitudinal side of the back sheet 30 is folded back to the inside in the longitudinal direction, and a part of the folded end 30 erion is the skin of the absorbent main body 10 and the leakproof wall 50
  • the ventral-side folded portion 30fa is formed to be overlapped and joined to the side.
  • a longitudinal back end 30eb of the back sheet 30 is folded back inward in the longitudinal direction, and a part of the folded back end 30eb is on the skin side of the absorbent main body 10 and the leakproof wall 50.
  • a back side folded portion 30fb is formed to be overlapped and joined.
  • an elastic member such as thread rubber is provided between the upper outer layer sheet 32 and the lower outer layer sheet 33 in the thickness direction.
  • the plurality of belly-side waist elastic members 35 a have a predetermined elongation ratio
  • the upper outer layer sheet 32 and the lower outer layer sheet 33 are sandwiched and joined in a state of being laterally extended.
  • the ventral waistline elastic member 35 a imparts lateral stretchability to the ventral waistline portion 3 of the diaper 1.
  • the plurality of back waist elastic members 35b are stretched in the lateral direction at a predetermined stretching ratio, and the upper side is It is joined between the outer layer sheet 32 and the lower outer layer sheet 33.
  • the back waistline elastic member 35 b imparts horizontal stretchability to the back waistline 4 of the diaper 1.
  • the “expansion magnification” of the elastic member indicates the degree of elongation when the natural length of the elastic member (thread rubber) is 1, and for example, when the expansion magnification is 1.2, the elastic member is natural. It will be extended by 0.2 from the length.
  • the back waistline portion 4 is provided with a plurality of back leg elastic members 35lg.
  • the back leg elastic member 35 lg is arranged to be curved along the constricted portion 30 c from a region (a position closer to the center in the longitudinal direction of the absorber 11) in the longitudinal direction of the back waist 4.
  • the back leg leg elastic member 35 lg is a straight portion disposed along the lateral direction in the lateral central portion (the region where the absorber 11 is disposed).
  • 35lgs, and a curved portion 35lgc which is disposed so as to be curved obliquely upward toward the outside in the lateral direction from both sides in the lateral direction of the straight portion 35lgs.
  • the straight portion 35lgs and the curved portion 35lgc are joined between the upper outer layer sheet 32 and the lower outer layer sheet 33 in a state of being stretched at different stretching ratios.
  • the back leg elastic member 35lg is disposed such that the expansion ratio of the straight portion 35lgs is lower than the expansion ratio of the back waist elastic member 35b. Since the straight portion 35lgs has a portion overlapping the absorber 11 (the absorbent main body 10) at the central portion in the lateral direction, the absorber 11 is excessively contracted in the lateral direction by lowering the expansion ratio. Can be suppressed.
  • the expansion ratio may be different depending on the position of the straight portion 35lgs in the lateral direction. For example, the expansion ratio at the center in the horizontal direction of the straight portions 35lgs may be lower than the expansion ratio at both ends in the horizontal direction. Thereby, a gradient is generated in the stress in the straight portion 35lgs, and the contraction of the absorber 11 can be suppressed without impairing the fit.
  • the extension ratio of the curved portion 35lgc is arranged to be higher than the extension ratio of the back waistline elastic member 35b.
  • the curved portion 35lgc is disposed along the constricted portion 30c on the back side of the diaper 1, but this region abuts on the buttocks of the wearer when the diaper 1 is worn, and the wearer shifts the position by moving the legs. Part is apt to occur. Therefore, by increasing the expansion ratio of the curved portion 35lgc, the contraction force is increased to make it difficult to cause positional deviation.
  • the expansion ratio may be different in the lateral direction of the curved portion 35lgc.
  • the extension ratio may be higher on the outer side than on the inner side in the lateral direction.
  • Leakproof wall 50 is disposed along the longitudinal direction of absorbent main body 10 (longitudinal direction of diaper 1) on both sides in the lateral direction of absorbent main body 10, and from the side end of absorbent main body 10 when diaper 1 is worn Standing up, it controls that excrement leaks to the outside of diaper 1.
  • FIG. 4 is a plan view of the leak-barrier 50 in a deployed and extended state.
  • FIG. 5 is a schematic cross-sectional view showing the region D of FIG. 3C in an enlarged manner. In FIG. 5, for convenience of explanation, the scale in the thickness direction is shown deformed.
  • the leak-proof wall 50 is formed by folding a rectangular sheet member 50s as shown in FIG. 4 in the lateral direction along fold lines f1 to f3 along the longitudinal direction (longitudinal direction).
  • a flexible sheet member such as a non-woven fabric can be used.
  • the leak preventing wall 50 is provided with a plurality of leak preventing wall elastic members 55 such as thread rubber which can be expanded and contracted in the longitudinal direction.
  • six leakage preventing wall elastic members 551 to 556 extending in the longitudinal direction are arranged side by side from the outside in the lateral direction to the inside.
  • the leak preventing wall elastic members 551 to 556 are joined to the leak preventing wall 50 in a state of being stretched in the longitudinal direction at a predetermined stretching ratio. Elasticity along the longitudinal direction is imparted to the leakproof wall 50 by the leakproof wall elastic member 55, and the leakproof wall 50 is erected when the diaper 1 is worn.
  • the leakproof wall elastic member 55 exhibits elasticity in the range indicated by the broken line in FIGS. 1 and 4.
  • the leak-proof wall elastic member 55 which does not express elasticity may exist in the area
  • the number of the leakproof wall elastic members 55 and the arrangement thereof are not limited to those shown in FIG. 4 and can be appropriately changed according to the use of the diaper 1.
  • the lateral inner end 50 ei of the leak-proof wall 50 (sheet member 50 s) is joined between the absorbent main body 10 and the back film 31 (back sheet 30) in the thickness direction. ⁇ It is fixed.
  • the lateral outer end 50 e 1958 of the leak-proof wall 50 protrudes laterally outward of the absorbent main body 10.
  • the outer end 50e réelle is bent inward in the lateral direction with the bending line f1 as a base point, and the sheet members 50s are overlapped in the thickness direction with the leak preventing wall elastic members 551 to 556 interposed therebetween. Bonded to each other.
  • the outermost elastic member (the leakage preventing wall elastic member 551 in FIG. 4) is disposed in line with the lateral position of the bending line f1. It is done.
  • the sheet member 50s is bent on the non-skin side in the thickness direction and inward in the lateral direction with the bending line f2 as a base point.
  • the lateral position of the bending line f2 is substantially the same as the lateral position of the leak-barrier elastic member 555.
  • the sheet member 50s is bent on the skin side in the thickness direction and inward in the lateral direction with the bending line f3 as a base point.
  • the leakproof wall 50 bent in a substantially S shape as shown in FIG. 3 and FIG. 5 is formed.
  • the position of the bending line f3 becomes the base 50rp at the time of making the leak-proof wall 50 stand up.
  • the top surface portion 51 is formed on the most skin side in the thickness direction by folding the sheet member 50s from one side to the other side in the lateral direction.
  • the top surface portion 51 is a region having a predetermined width in the lateral direction between the bending line f 1 and the bending line f 2, and the top surface portion 51 is provided with leakage preventing wall elastic members 551 to 555.
  • a lower surface 52 is formed on the non-skin side in the thickness direction of the top surface 51.
  • the lower surface portion 52 is a region having a predetermined width in the lateral direction between the bending line f2 and the bending line f3, and the lower surface portion 52 is provided with leakage preventing wall elastic members 555 to 556. Since the leakage preventing wall elastic member 555 is disposed at substantially the same position as the bending line f2 in the lateral direction as described above, it is provided on both the top surface 51 and the lower surface 52.
  • a partial region of the top surface portion 51 and the lower surface portion 52 is joined in the thickness direction via the inward joint portion 61. That is, the surfaces on one side of the leakage preventing wall 50 (sheet member 50s) in the thickness direction are joined together by the inward joint portion 61.
  • a region on the inner side in the lateral direction of the portion where the inward joint portion 61 is formed in the leakproof wall 50 is also referred to as an inward portion 53.
  • a fold-in joint portion 61 shown by the hatched portion in FIG. 5 is provided, and a fold-in portion 53 is formed.
  • the inward joint portion 61 is formed using an adhesive means using an adhesive such as a hot melt adhesive or a pressure bonding means such as embossing.
  • the folding joint 61 does not have to be formed over the entire lateral direction of the folding portion 53 as shown in FIG. 5, and, for example, folding is performed at the inner end in the lateral direction (the position of the folding line f2 in FIG. 5).
  • the bonding portion 61 may not be formed.
  • the top surface 51 and the lower surface 52 are not joined in the lateral outside region where the in-folding joint 61 is not provided, and both can be separated in the thickness direction.
  • a single layer said here means that it is a layer which consists only of the top
  • the inward joint 61 is not provided. That is, in the region on one side and the other side of the leakage preventing wall 50 in the longitudinal direction on the one side and the other side of the inward joint portion 61, the surfaces on one side in the thickness direction of the leakage preventing wall 50 (sheet member 50s) are It has a non-joined portion 62 which is not joined. In this non-joining portion 62, as shown in FIG. 3B, since the top surface portion 51 and the lower surface portion 52 of the leakproof wall 50 are not joined, the fold-in portion 53 is not formed. The entire area is a single layer part. In FIG. 1, the non-joining portions 62 are provided on both sides in the longitudinal direction of the in-folding joint 61, but the non-joining portions 62 may be provided only on one side in the longitudinal direction.
  • end joint portions 63 are provided at both end portions in the longitudinal direction of the leak-proof wall 50.
  • the end joint portion 63 as shown by the hatched portion in FIG. 3A, the top surface portion 51 and the lower surface portion 52 of the leakproof wall 50 are joined, and the lower surface portion 52 and the top sheet 20 are joined. Thereby, the top surface portion 51 and the lower surface portion 52 are fixed to the skin side surface of the top sheet 20 at the end portion in the longitudinal direction of the leak preventing wall 50.
  • the end joint portion 63 is disposed laterally outside the inward joint portion 61, which causes the lateral outer end portion of the top surface portion 51 to curl up. Be suppressed.
  • the leak-proof wall 50 has the above-described substantially S-shaped bent structure (refer to FIG. 5), so that it is difficult for the wearer to feel discomfort even when excretion is performed. While being, it can control that a crevice arises in a crotch part.
  • Drawing 6A is a figure explaining the wearing condition of diaper 1 before excretion is performed.
  • Drawing 6B is a figure explaining the wearing condition of diaper 1 after excretion is performed.
  • the top surface part 51 arrange
  • the rigidity of the fold-in portion 53 of the top surface portion 51 is increased by being joined by the fold-in joint portion 61 in a state where the top surface portion 51 and the lower surface portion 52 are stacked. Therefore, when the contraction force by the leakage preventing wall elastic members 555 and 556 acts on the inward portion 53, the inward portion 53 is firmly pressed against the body of the wearer while maintaining the surface shape.
  • the distance between the pair of leakproof walls 50 in the lateral direction (the distance between the folded portions 53, 53 in the lateral direction) is W50.
  • the single-layer portion 54 on the outer side in the lateral direction than the in-folding joint portion 61 of the top surface portion 51 more leak-barrier elastic members 551 to 554 are provided in the lateral direction inward than the in-folding joint portion 61.
  • the single-layer portion 54 is lower in rigidity than the indented portion 53 and thus easily deformed.
  • the single layer portion 54 is pressed against the skin side of the wearer while forming a curved surface according to the unevenness of the body.
  • the plurality of leak preventing wall elastic members 551 to 554 effectively prevent the single layer portion 54 from being twisted or the like.
  • the entire top surface portion 51 of the leak-barrier wall 50 can be fitted to the wearer's body in a sharp manner. Further, since the top surface portion 51 is in surface contact with the body of the wearer, the contraction force by the plurality of leak preventing wall elastic members 551 to 556 is dispersed, and the surface pressure acting on the wearer's skin as the entire top surface portion 51 I'm getting bigger. Therefore, local pressure increase is suppressed as compared with the case where the contraction force by the plurality of leak-barrier elastic members 551 to 556 (for example, thread rubber) individually acts on the wearer's skin And the deterioration of the comfort of the diaper 1 is suppressed, and the skin of the wearer is less likely to be damaged.
  • the contraction force by the plurality of leak-barrier elastic members 551 to 556 for example, thread rubber
  • At least one leakage preventing wall elastic member 556 is provided on the lower surface portion 52 of the folding portion 53 (see FIG. 5). Since the lower wall portion 52 and the upper surface portion 51 are simultaneously pushed up to the skin of the wearer by the contraction of the leak-barrier elastic member 556, the fold portion 53 contacts the skin of the wearer while maintaining the surface shape. (Face contact) becomes easy.
  • the leakage preventing wall elastic member 556 be disposed at the same position as the inward joint portion 61 or inside the inward joint portion 61 in the lateral direction. If the leakproof wall elastic member 556 is disposed laterally outside the fold joint portion 61, the stretch force by the leakproof wall elastic member 556 substantially does not act on the fold portion 53, so It becomes difficult to push up the portion 53 to the skin side of the wearer while maintaining the surface shape.
  • the leakage preventing wall elastic member 556 is disposed below or inside the folding joint 61, the elastic force by the leakage preventing wall elastic member 556 is inserted through the folding joint 61 into Because it works in a wide range, it makes it easier for the fold 53 to make surface contact with the wearer's skin
  • the absorber 11 absorbs urine and the like to increase its weight, and tries to move so as to hang downward.
  • the contraction force of the plurality of elastic members provided in the folding portion 53 and the single layer portion 54 generates a force that pushes the top surface portion 51 upward (skin side of the wearer).
  • the resistance increase against the force by which the leak-barrier 50 is pulled downward by the increase in the reception of the absorber 11 is obtained.
  • the top surface portion 51 is in surface contact with the skin of the wearer, the friction on the contact surface is large, and displacement of the top surface portion 51 hardly occurs.
  • the horizontal distance W50 between the pair of leak preventing walls 50 does not easily change before and after the excretion. From these things, the state where the top surface portion 51 of the leakproof wall 50 abuts on the wearer's skin as shown in FIG. 6B is easily maintained, and problems such as the formation of gaps in the leg around the diaper 1 are less likely to occur. .
  • the drooping of the absorber 11 is more likely to occur as the rising portion of the leak-proof wall 50 is higher. That is, as shown in FIG. 6B, the longer the distance L2 from the lateral outer end of the absorber 11 to the portion where the leakproof wall 50 abuts on the wearer's skin, the absorber 11 tends to sag downward. Become. In this regard, in the leak-proof wall 50 of the diaper 1, the distance L2 is relatively shortened due to the formation of the indented portion 53.
  • the inward joint portion 61 (indented portion 53) is formed in the region of the constricted portion 11 c of the absorber 11 in the longitudinal direction.
  • the pair of inward joint portions 61 formed on both sides in the lateral direction do not overlap with the absorber 11 in the thickness direction, and the distance between the pair of inward joint portions 61 in the lateral direction is It is narrower than the length (width) of the longitudinal direction both ends in the transverse direction.
  • the distance from the lateral end of the absorber 11 to the rising base 50rp of the leakproof wall 50 is long (see FIG.
  • the absorber 11 Drooping of the Therefore by providing the inward joint portion 61 in the leakproof wall 50 in the region, and folding the leakproof wall 50 in the inward portion 53, the distance L2 can be made as short as possible, and the sag of the absorber 11 can be effectively suppressed. It is like that. Furthermore, by forming the inward joint portion 61 so as not to overlap with the absorber 11 in the thickness direction, the portion of the leakproof wall 50 whose rigidity is increased by the inward joint portion 61 is worn by the absorber 11 It is suppressed that it is pressed against the person's body (skin side). Thereby, the deterioration of the touch at the time of diaper 1 wear can be suppressed.
  • the diaper 1 of the present embodiment can be used with a liquid absorbent absorbent pad 100.
  • the absorbent pad 100 has a function of absorbing excrement such as urine, and is detachably inserted into the skin side of the absorbent main body 10 of the diaper 1.
  • FIG. 7 is a plan view of the absorbent pad 100 in a deployed and extended state.
  • FIG. 8A is a schematic cross-sectional view taken along the line EE in FIG.
  • FIG. 8B is a schematic cross-sectional view along the line FF in FIG. Note that each direction (lateral direction or the like) in FIGS. 7, 8A, and 8B corresponds to each direction in FIGS. 1 and 3.
  • the pad absorbent 110 is a liquid absorbent fiber such as pulp fiber molded into a predetermined shape, and a super absorbent polymer (so-called SAP) or the like is mixed therein, and liquid such as urine (excrement Absorb and hold). As shown in FIG. 7, the planar shape of the pad absorbent 110 is substantially the shape of a gourd similar to the absorbent pad 100.
  • SAP super absorbent polymer
  • the ventral wide portion 110l Given the widest lateral width on the ventral side (and the dorsal side) in the longitudinal direction and the dorsal wide portion 110lb with the widest lateral width on the dorsal side in the longitudinal direction and a narrow portion 110s having the narrowest width in the lateral direction between the ventral wide portion 110La and the dorsal wide portion 110lb (that is, between the longitudinal ends of the pad absorbent 110).
  • the narrow portion 110s is provided in a region on the ventral side of the central position CL100 in the longitudinal direction, and is a portion that contacts the groin of the wearer when the pad absorber 110 is worn (used).
  • the lateral width W110l of the wide portions 110lpedia and 110lb is about 220 mm
  • the lateral width W110s of the narrow portion 110s is about 150 mm.
  • a slit 111 penetrating the pad absorber 110 in the thickness direction is provided along the longitudinal direction at the lateral center of the narrow portion 110s. Since the pad absorber 110 has low rigidity at the portion of the slit 111, it is easy to be deformed according to the body shape of the wearer when the absorbent pad 100 is worn. Moreover, the pad absorber 110 is coat
  • seat 112 for example, tissue
  • the pad absorber 110 may have a two-layer structure in the thickness direction. That is, as shown in FIG. 8, the second pad absorber 115 may be provided to overlap in the thickness direction of the pad absorber 110. However, the core wrap sheet 112 and the second pad absorber 115 may not necessarily be provided.
  • the top sheet 120 is a liquid-permeable sheet member that is disposed on the skin side surface in the thickness direction of the pad absorbent body 110 and that contacts the skin of the wearer when the absorbent pad 100 is worn.
  • the top sheet 120 is formed of, for example, an air through nonwoven fabric, a spunbond nonwoven fabric, or the like.
  • the back sheet 130 is a sheet member disposed on the non-skin side of the pad absorbent 110 in the thickness direction.
  • the back sheet 130 has a back film 131 and an outer layer sheet 132.
  • the back film 131 is a liquid impermeable and moisture permeable sheet member disposed on the non-skin side of the pad absorber 110, and is formed of, for example, a resin film.
  • the outer layer sheet 132 is a flexible sheet-like member disposed on the non-skin side of the back film 131 while being overlapped in the thickness direction, and is formed of, for example, a spunbond nonwoven fabric or the like.
  • the width in the lateral direction of the back film 131 may be narrower than the width in the lateral direction of the outer layer sheet 132 (see FIGS. 8A and 8B).
  • the outer end portion 130e réelle is a portion to be the end portion 100se of the absorbent pad 100 in the lateral direction, and is inserted into the space SP50 formed between the leakproof walls 50 when inserted into the diaper 1 as described later. Part of the Therefore, by making the rigidity of the outer end portion 130eschreib low and making it easy to deform, the absorption pad 100 is less likely to interfere with the leak-proof wall 50, and the work of inserting into the diaper 1 becomes easy.
  • a pair of absorbent pad leakproof walls 150 are provided on both lateral sides of the skin side of the pad absorbent 110.
  • Absorbent pad leakproof wall 150 is arranged such that at least a partial area including lateral inner end 150 ei overlaps the skin side surface of top sheet 120 in the thickness direction. And as FIG. 8A shows, it is joined with the top sheet 120 in the horizontal direction both ends of the top sheet 120 through the junction part 155 formed with the hot-melt-adhesive etc. Further, in the regions on both outer sides in the lateral direction of the pad absorbent body 110, it is joined to the back sheet 130 (back film 131) via joining portions 156 formed of a hot melt adhesive or the like.
  • An absorbent pad elastic member 151 is joined to the lateral inner end 150 ei of the absorbent pad leak-barrier wall 150 in a state in which the absorbent pad elastic member 151 is stretched in a longitudinal direction at a predetermined stretching ratio.
  • the absorbent pad leak-barrier wall 150 is erected on the skin side in the thickness direction from both lateral ends of the pad absorbent body 110 with the bonding portion 155 as a base point by the contraction force of the absorbent pad elastic member 151. As a result, leakage of excrement to the outside in the lateral direction of the absorbent pad 100 is suppressed.
  • the absorbent pad leak-proof wall 150 in the end region in the longitudinal direction, the vicinity of the laterally inner end 150ei of the absorbent pad leak-proof wall 150 is a joint 157 formed by a hot melt adhesive or the like. And the top sheet 120. Therefore, when the absorbent pad 100 is worn, the absorbent pad leakproof wall 150 does not stand up in the thickness direction in the longitudinal end region.
  • FIG. 9 is a view for explaining the mounting operation of the diaper 1.
  • FIG. 9A shows a state in which the absorbent pad 100 is placed between the crotch of the wearer.
  • the diaper 1 can be easily fitted to the body of the wearer, and the displacement of the absorbent pad 100 can be suppressed to make the leakage less likely to occur. Moreover, since it becomes difficult to produce position shift at the time of making the diaper 1 wear, as mentioned above, the top surface 51 of the leak-proof wall 50 becomes easy to fit snugly on the wearer's body, and the diaper 1 is worn The fit is further improved. Further, as described later, the diaper 1 and the leak-proof wall 50 of the present embodiment have a structure that allows the absorbent pad 100 to be easily inserted even when the diaper 1 is worn by the wearer. It is suitable for the present mounting method.
  • the absorption pad 100 is inserted in the skin side of the absorptive main body 10 of the diaper 1 (insertion process).
  • “inserting” the absorbent pad 100 into the diaper 1 means attaching the absorbent pad 100 so as not to cause displacement of the diaper 1.
  • the absorbent pad 100 is inserted into the diaper 1 such that the longitudinal center position CL10 of the absorbent main body 10 and the longitudinal center position CL100 of the absorbent pad 100 overlap.
  • FIG. 10 is a schematic cross-sectional view of the diaper 1 in a state in which the absorbent pad 100 is inserted into the diaper 1.
  • FIG. 10 shows a cross section at a position where the horizontal length (width) of the back sheet 30 (outer layer sheet) is the smallest in the longitudinal direction of FIG.
  • the lateral end of the absorbent pad 100 is aligned so that the longitudinal central position CL10 of the absorbent main body 10 and the longitudinal central position CL100 of the absorbent pad 100 are aligned.
  • a space SP50 (represented by a hatched portion in FIG.
  • FIG. 11 is a diagram showing a state in which the absorbent main body 10, the leak preventing wall 50, and the absorbent pad 100 are laterally extended from the state of FIG.
  • the dimensions of predetermined portions of the absorbent pad 100 and the diaper 1 are adjusted so as to satisfy the following conditions so that the lateral end 100se of the absorbent pad 100 is accommodated in the space SP 50 without difficulty. That is, as shown in FIG. 11, the width W10 of the absorbent main body 10 in the lateral direction when both are expanded in the lateral direction so that the lengths of the absorbent main body 10 and the leak preventing wall 50 become maximum.
  • the total value (W10 + 2 x h50) of double the distance h50 between the lateral end 10e Albany of the absorbent main body 10 and the inward joint portion 61 of the leaked wall 50 has the maximum length of the absorbent pad 100.
  • the absorbent main body 10 and the absorbent pad 100 bend or contract in the lateral direction, so that the lengths of the absorbent main body 10 and the leak-proof wall 50 are maximum as described above. It defines the dimensions when stretched in the lateral direction so that Therefore, if the relationship of (W10 + 2 ⁇ h50)> (W100 + 2 ⁇ t100) is satisfied when the dimensions are compared in the stretched state as shown in FIG. 11, the absorbing pad 100 does not interfere with the leak preventing wall 50. Can be inserted into the diaper 1. In the state of FIG. 11, since the absorbers 11 are not disposed at the positions of both ends 10e Congress in the lateral direction of the absorbent body 10, the thickness t10eschreib of the absorbent body 10 at both ends 10eschreib should be substantially ignored. Can.
  • the length W 10 of the absorbent main body 10 is about 200 mm, and the length h 50 of the leak preventing wall 50 Is about 25 mm.
  • the distance W50 between the inner ends in the lateral direction of the pair of folding joints 61 (folding portions 53) is absorbed at least in part in the longitudinal direction It is adjusted to have a portion which is narrower than the lateral width W100 of the pad 100 (W100> W50).
  • the length W of the space W50 between the pair of folding and joining portions 61 is about 140 mm (210 mm> 140 mm).
  • the distance W150 between the inner ends 150ei in the lateral direction of the pair of absorbent pad leakproof walls 150 is narrower than the distance W50 between the inner ends in the lateral direction of the inward joint 61 (W50> W150). . That is, in a state where the absorbent pad 100 is inserted in the diaper 1, the pair of absorbent pad leakproof walls 150 (inner end portion 150ei) are erected inside the lateral direction of the pair of leakproof walls 50, and the lateral direction Will be provided with double barriers. Thereby, it becomes easier to suppress that the excrement leaks to the outside of the diaper 1.
  • the top surface 51 of the leakproof wall 50 of the diaper 1 fits snugly on the wearer's body, and even if the wearer moves the body, the interval W50 does not easily change. Therefore, even when the wearer moves the body with the absorbent pad 100 inserted in the diaper 1, the interval W150 of the absorbent pad leak-barrier 150 is prevented from being excessively extended, and a good fit is maintained. At the same time, the function as a leak-proof wall is secured, and the side leakage of the excrement is less likely to occur.
  • the width W110 in the lateral direction of the pad absorbent 110 (the absorbent pad 100) is wider than the width W11 in the lateral direction of the absorbent 11 (the absorbent main body 10) (W110> W11).
  • the leakage preventing wall 50 is provided with the indented portion 53 (indented joint portion 61), so that even the wide pad absorbent body 110 (absorptive pad 100) can be reasonably obtained. It becomes possible to insert.
  • the absorbent pad 100 with a large amount of absorption can be easily accommodated in the three-dimensional shape of the diaper 1 (the leak-proof wall 50), the wearer can stay in the state of wearing a pants-type diaper that is easy to move even at night. As a result, it becomes possible to spend on pants-type diapers all day, which makes life more comfortable.
  • the operation when replacing the absorbent pad 100 is easy, and positional deviations and the like are less likely to occur, so a person (for example, a carer or less) who wears the diaper 1 (absorbent pad 100) , Also known as the user) can be reduced.
  • the folding portion 53 In the insertion step, in the state in which the wearer wears the diaper 1, the folding portion 53 is at a position where it is difficult to visually recognize from the outside.
  • the folded portion 53 by making the finger easily hooked to the portion of the gap d55b of the leakproof wall 50, even if the folded portion 53 is in a state in which it is difficult to visually recognize, the folded portion 53 (folded junction 61) is absorbed.
  • An operation of disposing on the skin side of the pad 100 can be easily performed. Thereby, it becomes easy to insert the absorption pad 100 into the diaper 1 correctly correctly, and the leak etc. of excretion are suppressed.
  • the folding portion 53 shrinks, making it difficult to insert the absorbing pad 100 into the space SP 50, or a shrinking force acts on the absorbing pad 100 itself to generate unevenness or wrinkles on the surface of the absorbing pad 100. There is a risk that the person may easily feel discomfort.
  • the gap d55b is wide and the contraction force acting on the inward portion 53 is appropriately adjusted, it is easy to insert the absorbent pad 100, and the wearer feels discomfort when worn. Hard to cause.
  • FIG. 12 is a schematic plan view illustrating the positional relationship between the diaper 1 and the absorbent pad 100 in a state where the absorbent pad 100 is inserted into the diaper 1.
  • FIG. 12 shows a state in which the absorbent pad 100 is inserted into the diaper 1 so that the longitudinal central position CL10 of the diaper 1 (the absorbent main body 10) and the longitudinal central position CL100 of the absorbent pad 100 overlap. .
  • variety of the absorption pad 100 and the folding junction part 61 of the diaper 1 overlap about the thickness direction.
  • the relationship of the dimensions of each part such as the width W100 of the absorbent pad 100, the width W10 of the absorbent main body 10, and the interval W50 of the in-folding joint 61, is the same as in FIG. Therefore, at least in the region where the narrow portion 110s is provided in the longitudinal direction, the absorbent pad 100 can be firmly held between the inward joint portions 61, so displacement does not easily occur and leakage of excrement Is less likely to occur.
  • the length of the folding joint 61 in the longitudinal direction is longer than the length of the narrow portion 110s in the longitudinal direction (see FIG. 12). Therefore, even if the position of the diaper 1 in the longitudinal direction and the position of the absorbent pad 100 deviate, if the inward joint portion 61 and the narrow portion 110s of the diaper 1 overlap in the thickness direction, The absorbent pad 100 is firmly inserted into the diaper 1 to maintain the state of FIG. That is, even when positional deviation in the longitudinal direction occurs between the absorbent pad 100 and the diaper 1 in the insertion step, the absorbent pad 100 can be inserted into the diaper 1.
  • the lateral end 100se of the absorbent pad 100 can be easily inserted into the portion where the non-joined portion 62 is formed. That is, the area of the non-joining portion 62 functions as a pocket by the leakage preventing walls 50 provided on the left and right sides, and the absorbing pad 100 is completely accommodated.
  • the wide portion W1001 where the width in the lateral direction of the absorbent pad 100 is the largest can be accommodated in the region where the non-joining portion 62 is formed. ing.
  • the leakproof wall 50 is fixed to the skin side surface of the top sheet 20, and the end of the leakproof wall 50
  • the lateral space of the joint portion 63 is narrower than the wide portion W1001 of the absorbent pad 100.
  • the absorbent pad 100 accommodated in the non-joined part 62 is shifted in the longitudinal direction (longitudinal direction), so the wide part W100l of the absorbent pad 100 is caught on the end joint part 63, so the absorbent pad 100 is longitudinally Can be suppressed from moving outside of the Thereby, the absorption pad 100 is prevented from protruding to the outside of the diaper 1 in the longitudinal direction, and the excrement is unlikely to leak out.
  • the space SP 50 When a user (for example, a caregiver) who wears the diaper 1 inserts a finger into the space SP 50 and pulls out the leakproof wall 50 to the skin side of the absorbent pad 100, the space SP 50 When the finger is moved along the longitudinal direction (longitudinal direction) with the finger still in place, the movement of the finger is stopped by the joint 63 at the boundary between the non-joint portion 62 and the end joint 63. Thereby, the user can recognize the area in which the non-joint portion 62 and the fold-in joint portion 61 of the leak-barrier 50 are formed in the longitudinal direction by the sense of the finger without visual recognition.
  • the position of the pocket (the position where the non-joining portion 62 is provided) to which the wide portion W100l of the absorbent pad 100 should be inserted is unlikely to be erroneous, and the absorbent pad 100 can be firmly accommodated between the leakproof walls 50. .
  • the distance between the longitudinal ends of the absorbent pad 100 is, as shown in FIG. 12, the longitudinal inner end (end 30e.alpha.) Of the ventral fold 30fa and the length of the dorsal fold 30fb. It is shorter than the distance in the longitudinal direction between the direction inner end (end 30eb).
  • the end 30eA of the ventral side folded portion 30fa is a dry edge not provided with an adhesive or the like, and the ventral side folded portion 30fa and the absorbent main body 10 (and the leak preventing wall 40) are provided at the end 30eA. Is not joined.
  • the ventral end of the absorbent pad 100 in the longitudinal direction is the gap between the ventral fold 30fa and the absorbent main body 10 (end 30e Can be caught on the dry edge formed on the) to stop the displacement in the longitudinal direction to the ventral side.
  • the end 30eb is a dry edge provided with no adhesive or the like
  • the back fold 30fb is the absorbent main body 10 (and the leakage prevention Not joined with the wall 40).
  • the back end of the absorbent pad 100 in the longitudinal direction is a gap between the back folded portion 30fb and the absorbent main body 10 (formed in the end 30eb Can be caught on the dry edge) to stop the longitudinal dorsal displacement.
  • these elastic members are not restricted to so-called linear elastic members, such as thread rubber.
  • a planar (strip-like) elastic member having a predetermined width may be used.
  • the sheet member constituting the leak-proof wall or the back sheet may be a stretchable sheet member (for example, a stretchable non-woven fabric), thereby eliminating the need for separately providing an elastic member such as thread rubber.
  • 1 diaper (pants-type disposable diaper), 3 ventral waist, 3es ventral side edge, 4 back waist, 4es back side edge, 5 crotch, 10 Absorbent body, 10e Albany end, 11 absorber, 11c neck, 11ea end, 11eb end, 12 core wrap sheets, 20 top sheets, 30 back sheet, 30c neck, 30e réelle end, 30fa ventral fold, 30eb end, 30fb dorsal turn, 31 back film, 32 upper outer layer sheet, 33 lower outer layer sheet, 35a ventral waist elastic member, 35b dorsal waist elastic member, 35lg dorsal leg elastic member, 35lgs straight part, 35lgc curved part, 50 leak barriers, 50s seat member, 50ei inner end, 50e Albany outer end, 50rp base, 51 top surface portion, 52 lower surface portion, 53 indented portion, 54 single layer portion, 55 leak-barrier elastic member, 551 to 556 leak-barrier elastic member, 61 Folded joints, 62 non-joints

Landscapes

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

Abstract

La présente invention concerne une couche jetable de type culotte (1) ayant un tampon absorbant amovible (100), la couche (1) comprenant un corps absorbant (10), une paire de parois de prévention de fuite (50) et une feuille de couche externe (30). Chacune des parois de prévention de fuite (50) comporte une partie de liaison (61) dans une position dans laquelle la feuille de couche externe (30) a la plus petite longueur latérale dans une direction longitudinale. La somme de la largeur latérale du corps absorbant (10) et du double de la distance entre un bord latéral du corps absorbant (10) et la partie de liaison (61) dans la position dans laquelle la feuille de couche externe (30) a la plus petite longueur latérale lorsque le corps absorbant (10) et les parois de prévention de fuite (50) sont étendus latéralement, est supérieure à la somme de la largeur latérale du tampon absorbant (100) et du double de l'épaisseur du tampon absorbant (100) dans la position dans laquelle la feuille de couche externe (30) a la plus petite longueur latérale lorsque le tampon absorbant (100) est étendu latéralement. Lorsque le tampon absorbant (100) est inséré à l'intérieur de la couche (1), l'espace entre les bords internes latéraux des parties de liaison (61) présente une partie qui est plus étroite que la largeur latérale du tampon absorbant (100).
PCT/JP2016/064504 2016-05-16 2016-05-16 Couche jetable de type culotte et procédé de port de couche jetable de type culotte WO2017199300A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680085775.0A CN109310547B (zh) 2016-05-16 2016-05-16 短裤型一次性尿布和短裤型一次性尿布的穿着方法
PH12018502240A PH12018502240A1 (en) 2016-05-16 2018-10-19 Pull-on disposable diaper and method for putting on pull-on disposable diaper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-097880 2016-05-16
JP2016097880 2016-05-16

Publications (1)

Publication Number Publication Date
WO2017199300A1 true WO2017199300A1 (fr) 2017-11-23

Family

ID=60325003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/064504 WO2017199300A1 (fr) 2016-05-16 2016-05-16 Couche jetable de type culotte et procédé de port de couche jetable de type culotte

Country Status (4)

Country Link
JP (1) JP7025128B2 (fr)
CN (1) CN109310547B (fr)
PH (1) PH12018502240A1 (fr)
WO (1) WO2017199300A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020138058A1 (fr) * 2018-12-25 2020-07-02 ユニ・チャーム株式会社 Article absorbant de type culotte et procédé de fixation de garniture absorbante

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6901613B2 (ja) * 2019-09-30 2021-07-14 花王株式会社 パンツ型吸収性物品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07329U (ja) * 1991-07-11 1995-01-06 ユニ・チャーム株式会社 使い捨てオムツ
JP2007029609A (ja) * 2005-07-29 2007-02-08 Oji Nepia Kk パンツ型使い捨ておむつ
JP2008534230A (ja) * 2005-04-04 2008-08-28 ザ プロクター アンド ギャンブル カンパニー 使い捨て衣料
JP2015009020A (ja) * 2013-07-01 2015-01-19 大王製紙株式会社 吸収性物品
JP2015008930A (ja) * 2013-06-28 2015-01-19 大王製紙株式会社 使い捨ておむつ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9192526B2 (en) * 2012-07-12 2015-11-24 Kimberly-Clark Worldwide, Inc. Absorbent insert and containment system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07329U (ja) * 1991-07-11 1995-01-06 ユニ・チャーム株式会社 使い捨てオムツ
JP2008534230A (ja) * 2005-04-04 2008-08-28 ザ プロクター アンド ギャンブル カンパニー 使い捨て衣料
JP2007029609A (ja) * 2005-07-29 2007-02-08 Oji Nepia Kk パンツ型使い捨ておむつ
JP2015008930A (ja) * 2013-06-28 2015-01-19 大王製紙株式会社 使い捨ておむつ
JP2015009020A (ja) * 2013-07-01 2015-01-19 大王製紙株式会社 吸収性物品

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020138058A1 (fr) * 2018-12-25 2020-07-02 ユニ・チャーム株式会社 Article absorbant de type culotte et procédé de fixation de garniture absorbante
JP2020099590A (ja) * 2018-12-25 2020-07-02 ユニ・チャーム株式会社 パンツ型吸収性物品、及び、吸収パッド取り付け方法
CN113194899A (zh) * 2018-12-25 2021-07-30 尤妮佳股份有限公司 裤形吸收性物品及附接吸收性垫的方法
CN113194899B (zh) * 2018-12-25 2023-03-24 尤妮佳股份有限公司 裤形吸收性物品及附接吸收性垫的方法
TWI801687B (zh) * 2018-12-25 2023-05-11 日商優你 嬌美股份有限公司 短褲型吸收性物品、及吸收墊片安裝方法

Also Published As

Publication number Publication date
JP7025128B2 (ja) 2022-02-24
CN109310547A (zh) 2019-02-05
CN109310547B (zh) 2021-08-20
JP2017205501A (ja) 2017-11-24
PH12018502240A1 (en) 2019-08-19

Similar Documents

Publication Publication Date Title
CN109310542B (zh) 吸收性物品
TWI696456B (zh) 用後即棄式紙尿褲
JP6694793B2 (ja) 使い捨て吸収性物品
TWI601518B (zh) Absorbent article
JP2014069002A (ja) 吸収性物品
CN214434823U (zh) 短裤型吸收性物品
JP7002202B2 (ja) パンツ型使い捨ておむつ
WO2017199300A1 (fr) Couche jetable de type culotte et procédé de port de couche jetable de type culotte
JP7178172B2 (ja) 吸収性物品
JP2017205157A (ja) パンツ型使い捨ておむつ
WO2017199932A1 (fr) Couche jetable de type culotte
JP2023171082A (ja) 吸収性物品
CN108135751B (zh) 一次性穿着物品
JP5987131B1 (ja) パンツ型使い捨ておむつ、及び、パンツ型使い捨ておむつ装着方法
JP6608725B2 (ja) 吸収性物品
JP2020049287A (ja) 使い捨て吸収性物品
JP7179458B2 (ja) 吸収性物品
CN111479540B (zh) 吸收性物品
WO2024062924A1 (fr) Article absorbant
WO2022130811A1 (fr) Article absorbant
WO2022270419A1 (fr) Article absorbant
JP6726705B2 (ja) 吸収性物品
JP6677621B2 (ja) 使い捨て吸収性物品
JP6412896B2 (ja) パンツ型使い捨ておむつ
JP6205230B2 (ja) 使い捨ておむつ

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

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

Ref document number: 16902320

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16902320

Country of ref document: EP

Kind code of ref document: A1