WO2023286523A1 - Article absorbant - Google Patents

Article absorbant Download PDF

Info

Publication number
WO2023286523A1
WO2023286523A1 PCT/JP2022/024245 JP2022024245W WO2023286523A1 WO 2023286523 A1 WO2023286523 A1 WO 2023286523A1 JP 2022024245 W JP2022024245 W JP 2022024245W WO 2023286523 A1 WO2023286523 A1 WO 2023286523A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent article
longitudinal direction
absorbent
joint
article according
Prior art date
Application number
PCT/JP2022/024245
Other languages
English (en)
Japanese (ja)
Inventor
光佑 有田
亮太 蔵前
藍子 恩田
久記 渡邊
信也 佐藤
Original Assignee
花王株式会社
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 花王株式会社 filed Critical 花王株式会社
Priority to CN202280049216.XA priority Critical patent/CN117642141A/zh
Publication of WO2023286523A1 publication Critical patent/WO2023286523A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • 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 absorbent articles such as disposable diapers.
  • the absorbent main body is used for the purpose of increasing the adhesion around the wearer's legs and preventing liquid leakage from the article when the article is worn.
  • a leak-proof cuff extending along the longitudinal direction may be arranged on both side regions of the skin-facing surface of the garment in the lateral direction (direction perpendicular to the longitudinal direction corresponding to the front-rear direction of the wearer).
  • Patent Literatures 1 and 2 describe absorbent articles having such leak-proof cuffs.
  • the leak-preventing cuffs of Patent Documents 1 and 2 are folded at the folds extending along the longitudinal direction of the leak-preventing cuffs to form a lower region located on the base end side and an upper region located on the free edge side. classified.
  • joints are formed by adhesively joining the topsheets of the upper and lower regions and the lower region and the absorbent body.
  • the present invention has a longitudinal direction corresponding to the front-rear direction of the wearer and a lateral direction orthogonal to the longitudinal direction, and has a ventral portion and a dorsal portion, and between the ventral portion and the dorsal portion.
  • the present invention relates to an absorbent article having a positioned crotch portion and an absorbent main body arranged in a region from the abdominal portion to the dorsal portion along the longitudinal direction.
  • the absorbent main body is provided with a leak-proof cuff extending along the longitudinal direction on the skin-facing side of each of the lateral side regions.
  • the leak-preventing cuff is divided into an upper region and a lower region by folding at a fold portion extending along the longitudinal direction of the leak-preventing cuff. In one embodiment, it is preferable that the leak-proof cuff folded at the fold is located laterally inward of the free edge of the leak-proof cuff.
  • the upper region and the lower region are preferably joined at their outer surfaces to form a first joint.
  • the inner surface of the lower region is preferably joined to the topsheet of the absorbent body to form a second joint. In one embodiment, it is preferred that the length of the second joint along the longitudinal direction is longer than the length of the first joint.
  • FIG. 1 is a plan view showing a skin-facing side of an underpants-type disposable diaper that is one embodiment of an absorbent article of the present invention in an unfolded and maximum stretched state.
  • FIG. 2 is a sectional view taken along line II-II of FIG.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 4 is an enlarged view of a main part of FIG. 1.
  • FIG. 1 is a plan view showing a skin-facing side of an underpants-type disposable diaper that is one embodiment of an absorbent article of the present invention in an unfolded and maximum stretched state.
  • FIG. 2 is a sectional view taken along line II-II of FIG.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 4 is an enlarged view of a main part of FIG. 1.
  • FIG. 1 is a plan view showing a skin-facing side of an underpants-type disposable diaper that is one embodiment of an absorbent article of the present invention in an unfold
  • the leak-proof cuff In a water-absorbing article with a leak-proof cuff, if the length of the joint of the leak-proof cuff in the vertical direction is increased, the leak-proof cuff can be firmly fixed to the absorbent main body, while the standing range of the leak-proof cuff becomes shorter and the fit is compromised.
  • the joints often have higher rigidity than the surroundings, and there is a possibility that the texture of the absorbent article may be spoiled due to the increase in the length of the joints having high rigidity.
  • the standing range of the leak-proof cuff can be lengthened, but it becomes difficult to firmly fix the leak-proof cuff to the absorbent main body, which makes it difficult to wear. Movement of the patient may cause the leakage cuff to peel off. Thus, it is difficult to prevent peeling and twisting of the leak-proof cuff while maintaining fit and texture.
  • Patent Literatures 1 and 2 there is room for improvement because no study is made from the viewpoint of achieving both maintenance of fit and texture and prevention of peeling and twisting of the leak-proof cuff. Accordingly, the present invention relates to an absorbent article capable of overcoming the drawbacks of the prior art described above.
  • FIG. 1 shows an underpants-type disposable diaper (hereinafter also simply referred to as "diaper") 1, which is one embodiment of the absorbent article of the present invention.
  • the diaper 1 when the diaper 1 is worn, the diaper 1 includes an abdominal portion A arranged on the abdomen side of the wearer and a dorsal portion B arranged on the dorsal side of the wearer. It has a crotch part C located at.
  • the diaper 1 has a longitudinal direction X corresponding to the front-rear direction of the wearer and a lateral direction Y orthogonal to the longitudinal direction X.
  • the longitudinal direction X is also the direction corresponding to the direction extending from the ventral portion A to the dorsal portion B via the crotch portion C.
  • FIG. 1 shows an underpants-type disposable diaper (hereinafter also simply referred to as "diaper") 1, which is one embodiment of the absorbent article of the present invention.
  • the diaper 1 when the diaper 1 is worn, the diaper 1 includes
  • the diaper 1 comprises an absorbent main body 2 and an exterior body arranged on the non-skin facing side of the absorbent main body 2 .
  • the exterior body includes a ventral exterior body 6A arranged in the ventral part A and a dorsal exterior body 6B arranged in the dorsal part B.
  • the ventral exterior body 6A and the dorsal exterior body 6B are independent and separate members.
  • Abdominal exterior body 6A mainly forms the front body of diaper 1.
  • the back exterior body 6B mainly forms the back body of the diaper 1.
  • the absorbent main body 2 is arranged in a region from the ventral part A to the dorsal part B along the longitudinal direction X. As shown in FIG. More specifically, the absorbent main body 2 is spanned and fixed between the ventral exterior body 6A and the dorsal exterior body 6B.
  • both side portions 6e, 6e along the longitudinal direction X of the abdominal exterior body 6A and both side portions 6f, 6f along the longitudinal direction X of the dorsal exterior body 6B are joined.
  • the diaper 1 is formed with a pair of side seal portions (not shown), a waist opening (not shown) and a pair of leg openings (not shown).
  • the ventral side exterior body 6A and the dorsal side exterior body 6B are each composed of an outer layer sheet 62, an inner layer sheet 61 arranged on the skin-facing side of the outer layer sheet 62, and between the sheets 61 and 62. and a plurality of elastic members 63 arranged.
  • the elastic member 63 is thread-like or band-like and is arranged so as to extend along the lateral direction Y of the diaper 1 .
  • a plurality of elastic members 63 are arranged at intervals in the longitudinal direction X of the diaper 1 .
  • the absorbent main body 2 includes an absorbent body 23 extending along the longitudinal direction X, a surface sheet 21 disposed on the skin-facing side of the absorbent body 23, and a non-absorbent surface of the absorbent body 23. and a back sheet 22 arranged on the side facing the skin.
  • the absorbent body 23 has a shape elongated in the longitudinal direction X of the diaper 1 and is interposed between the top sheet 21 and the back sheet 22 .
  • the diaper 1 is provided with leak-prevention cuffs 24 on both side regions of the absorbent main body 2 in the lateral direction Y. More specifically, a pair of anti-leakage cuffs 24 are provided on both left and right sides along the longitudinal direction X of the skin-facing surface of the absorbent main body 2 .
  • the leak-proof cuff 24 extends along the longitudinal direction X. As shown in FIG.
  • the leak-proof cuff 24 has a free edge 24a and a proximal end 24b extending along the longitudinal direction X, as shown in FIGS.
  • a plurality of thread-like or band-like elastic members (hereinafter referred to as “leakage-preventive cuff-forming elastic members”) 50 are arranged in the longitudinal direction X on the free edge portion 24a of the leak-preventive cuff 24 in a stretched state.
  • the leakage-preventing cuff-forming elastic member 50 extends along the longitudinal direction X. As shown in FIG. In addition, the end portion in the longitudinal direction X of the leakage-preventing cuff-forming elastic member 50 does not reach the second joint portion 42 described later.
  • the leak-preventing cuff 24 stands up at least at the crotch portion C by contracting the leak-preventing cuff-forming elastic member 50 arranged in a stretched state when the diaper 1 is worn, thereby preventing excrement such as urine from moving in the lateral direction Y. outflow is blocked.
  • the leak-tight cuff 24 is folded between the free edge 24a and the proximal end 24b at a fold 30 extending along the length of the leak-tight cuff 24 to provide a free edge. It is divided into an upper region 31 positioned on the side of the portion 24a and a lower region 32 positioned on the side of the base end portion 24b.
  • the folds 30 are positioned inward in the lateral direction Y from the free edges 24 a of the leak-proof cuffs 24 .
  • the leak-proof cuff 24 in a state of being folded at the fold portion 30 is more likely than the free edge portion 24a of the leak-proof cuff 24. It is positioned inside in the lateral direction Y. Therefore, the leak-proof cuff 24 is bent at the fold 30 .
  • Both the upper region 31 and the lower region 32 extend along the longitudinal direction X. As shown in FIG. The upper region 31 and the lower region 32 are both substantially rectangular in plan view, and constitute a part of one sheet that constitutes the leak-proof cuff 24 .
  • the natural state means a relaxed state in which no external force is applied to the diaper 1 .
  • the leak-preventive cuff-forming elastic member 50 is disposed on the leak-proof cuff 24, and the leak-proof cuff-forming elastic member 50 is positioned above the leak-proof cuff 24 as shown in FIG. It is located in area 31 .
  • the leakage-preventing cuff-forming elastic member 50 extends along the longitudinal direction X of the diaper 1 and is fixed to the upper region 31 in a stretched state.
  • the leakage-preventing cuff-forming elastic member 50 is formed by folding one sheet forming the leakage-preventing cuff 24 in two, placing the leakage-preventing cuff-forming elastic member 50 between the folded sheets in a stretched state, and applying an adhesive. , etc., to the upper region 31 of the leak-proof cuff 24 .
  • the method for fixing the leak-preventive cuff-forming elastic member 50 is not limited to this, and the one sheet forming the leak-proof cuff 24 is not folded in half, and the leak-proof cuff-forming elastic member 50 is attached to either side of the sheet.
  • the elastic member 50 may be arranged in a stretched state and fixed with an adhesive or the like.
  • FIG. 2 shows a state in which the cuff-forming elastic member 50 is arranged only in the upper region 31 of the cuff 24, but the arrangement position of the cuff-forming elastic member 50 is
  • the elastic member 50 for forming a leak-proof cuff may be arranged not only in the upper region 31 but also in the lower region 32 or the fold portion 30 .
  • the upper region 31 and the lower region 32 of the leak-proof cuff 24 are joined at their outer surfaces in end regions in the longitudinal direction X of the diaper 1 to form a first joint portion 41 (FIG. 1). and 4, the portion marked with diagonal lines rising to the right).
  • the first joint portion 41 is formed by joining the outer surfaces of the upper region 31 and the lower region 32 by thermal fusion.
  • other joining means such as an adhesive
  • only the outer surfaces of the upper region 31 and the lower region 32 that are in contact with the adhesive are attached to the upper region 31. and contributes to the bonding of the lower region 32 .
  • the fibers forming the outer surfaces of the upper region 31 and the lower region 32 are heat-sealed to each other.
  • the fibers forming the vicinity of the outer surface are also heat-sealed.
  • the entire upper region 31 and lower region 32 are joined together in the thickness direction Z of the diaper 1 by heat sealing. That is, the first joint portion 41 is formed over the entire area of the upper region 31 and the lower region 32 in the thickness direction Z of the diaper 1 .
  • the first joint portion 41 By forming the first joint portion 41 over the entire area of the upper region 31 and the lower region 32 in the thickness direction Z, the upper region 31 and the lower region 32 can be joined more firmly.
  • the inner surface of the lower region 32 is joined to the surface sheet 21 of the absorbent main body 2 at the end region in the longitudinal direction X of the diaper 1 to form a second joint. It forms a portion 42 (the portion shaded downward to the right in FIGS. 1 and 4).
  • the second joint portion 42 is formed by bonding the inner surface of the lower region 32 and the skin-facing surface of the topsheet 21 with an adhesive. The technical significance of forming the second joint portion 42 by joining with an adhesive is as described below. If the lower region 32 and the surface sheet 21 are heat-sealed to form the second joint 42, the fibers at the second joint 42 become excessively dense and are held by the absorber 23 by capillary force.
  • the liquid in the second joint portion 42 may be sucked up. In that case, there is a possibility that the sucked up liquid may adhere to the wearer's skin. From the viewpoint of preventing the liquid from seeping out due to such inconvenience, that is, the liquid returning from the absorbent body 23, the second joint portion 42 is formed by bonding with an adhesive in the present embodiment.
  • the adhesive that forms the second joint portion 42 it is preferable to use a hot-melt adhesive from the viewpoint of effectively preventing liquid from seeping out.
  • Both the first joint portion 41 and the second joint portion 42 extend along the longitudinal direction X, and both have a substantially rectangular shape in plan view. At least a portion of the first joint portion 41 and the second joint portion 42 overlap in the thickness direction Z of the diaper 1 . Specifically, so that the position of the edge 41a on the outer side in the longitudinal direction X of the first joint 41 and the position of the edge 42a on the outer side in the longitudinal direction X of the second joint 42 are aligned. A first joint portion 41 and a second joint portion 42 are formed. In this embodiment, as shown in FIG. 4, the position of the edge 41a of the first joint 41 and the position of the edge 42a of the second joint 42 are the same as the edges of the cuff 24 in the longitudinal direction X. match the position.
  • the edge 41b on the inner side in the longitudinal direction X of the first joint portion 41 is located on the outer side in the longitudinal direction X than the edge 42b on the inner side in the longitudinal direction X of the second joint portion 42. .
  • the length L2 of the second joint 42 along the longitudinal direction X is longer than the length L1 of the first joint 41 .
  • the position of the edge 41c on the outer side in the lateral direction Y of the first joint 41 and the edge 42c on the outer side in the longitudinal direction X of the second joint 42 match the position. Specifically, the position of the edge 41c of the first joint 41 and the position of the edge 42c of the second joint 42 are aligned with the position of the free edge 24a of the cuff 24 to prevent leakage. Further, the edge 41d on the inner side in the lateral direction Y of the first joint portion 41 is located on the outer side in the lateral direction Y than the edge 42d on the inner side in the lateral direction Y of the second joint portion 42. . In other words, the length D2 of the second joint 42 along the lateral direction Y is shorter than the length D1 of the first joint 41 .
  • the advantage of having the length L2 of the second joint 42 along the longitudinal direction X greater than the length L1 of the first joint 41 is as described below.
  • the portions of the leak-preventing cuff 24 between the first joint portions 41, 41 in both end regions in the longitudinal direction X are portions that stand up when the leak-preventing cuff-forming elastic members 50 contract.
  • the leak-proof cuff 24 can be firmly fixed to the absorbent main body 2. As a result, it is possible to effectively prevent the leakage-preventing cuff 24 from unintentionally peeling off from the absorbent main body 2 and the occurrence of twisting of the leakage-preventing cuff 24 . Further, since the second joint portion 42 is formed at a position where it is difficult for the wearer to come into direct contact with the wearer's skin when the diaper 1 is worn, the lower region 32 and the topsheet 21 are firmly fixed by the second joint portion 42 . Even when the diaper 1 is worn, the texture of the diaper 1 can be maintained. As described above, according to the diaper 1 of the present embodiment, it is possible to maintain the fit and feel and prevent the leak-proof cuffs 24 from being peeled off or twisted.
  • the ratio L2/L1 of the length L2 of the second joint portion 42 to the length L1 of the first joint portion 41 is preferably 1.01. above, more preferably 1.03 or more, still more preferably 1.05 or more, preferably 1.24 or less, more preferably 1.22 or less, still more preferably 1.20 or less, and preferably is 1.01 or more and 1.24 or less, more preferably 1.03 or more and 1.22 or less, and still more preferably 1.05 or more and 1.20 or less.
  • the ratio L1/L of the length L1 of the first joint portion 41 to the total length L of the diaper 1 in the longitudinal direction X is preferably 0.5 from the viewpoint of firmly joining the upper region 31 and the lower region 32 of the leak-proof cuff 24 to each other.
  • it is preferably 0.05 or more and 0.12 or less, more preferably 0.07 or more and 0.11 or less, and still more preferably 0.08 or more and 0.11 or less.
  • the ratio L2/L of the length L2 of the second joint 42 to the total length L of the diaper 1 in the longitudinal direction X is preferably 0.08 or more, more preferably 0.08 or more, from the viewpoint of preventing peeling and twisting of the leak-proof cuff 24. 0.09 or more, more preferably 0.10 or more, preferably 0.15 or less, more preferably 0.14 or less, still more preferably 0.13 or less from the viewpoint of maintaining the texture of the diaper 1, From the viewpoint of compatibility between these, it is preferably 0.08 or more and 0.15 or less, more preferably 0.09 or more and 0.14 or less, and still more preferably 0.10 or more and 0.13 or less.
  • the length D1 in the horizontal direction Y may be the same as the length D in the horizontal direction Y from the fold portion 30 to the free edge portion 24a, or may be the same as the length D from the fold portion 30 to the free edge portion 24a. It may be shorter than the length D in the horizontal direction Y to .
  • the length D1 in the lateral direction Y of the first joint portion 41 is shorter than the length D in the lateral direction Y from the fold portion 30 to the free edge portion 24a, the upper region 31 and the lower region 32 are in a non-joined state. Overlapping dry edges occur. The dry edge is a portion where the leak-proof cuff 24 tends to peel off or become twisted.
  • the length D1 in the horizontal direction Y of the first joint portion 41 is the length of the horizontal direction Y from the fold portion 30 to the free edge portion 24a. It is preferably the same as the length D.
  • the upper region 31 and the lower region 32 are preferably joined at their outer surfaces to form the first joint 41 .
  • the length D1 in the horizontal direction Y of the first joint portion 41 is the same as the length D in the horizontal direction Y from the fold portion 30 to the free edge portion 24a.
  • the first joint portion 41 is formed between the fold portion 30 and the free edge portion 24a when viewed along the lateral direction Y. As shown in FIG.
  • the first joint portion 41 is formed by continuously joining the upper region 31 and the lower region 32 without a gap. In other words, the outer surfaces of the upper region 31 and the lower region 32 are joined continuously over the entire region where the regions 31 and 32 overlap to form the first joint portion 41 . By carrying out like this, the upper region 31 and the lower region 32 can be joined still more firmly.
  • the length D2 in the lateral direction Y may be the same as the length D in the lateral direction Y from the fold portion 30 to the free edge portion 24a, or the length D2 in the lateral direction Y from the fold portion 30 to the free edge portion 24a. It may be shorter than the length D in the horizontal direction Y up to the portion 24a. In this embodiment, as shown in FIG. 4, the length D2 in the lateral direction Y of the second joint portion 42 is shorter than the length D in the lateral direction Y from the fold portion 30 to the free edge portion 24a. .
  • a non-bonded region 43 between the lower region 32 and the topsheet 21 exists between the second bonded portion 42 and the fold portion 30 .
  • the non-bonded region 43 exists between the second bonded portion 42 and the fold portion 30 when viewed along the lateral direction Y.
  • the lower region 32 rises from the top sheet 21 in the non-joined region 43, and the lower region 32 and the surface Pockets are easily formed between the sheets 21 .
  • liquid such as urine can be collected in the pocket formed in this way, so that liquid leakage can be effectively prevented.
  • the ratio D2/D of the length D2 in the lateral direction Y of the second joint portion 42 to the length D in the lateral direction Y from the crease portion 30 to the free edge portion 24a indicates that the joining by the second joint portion 42 is strong.
  • the second joint portion 42 is formed by continuously joining the lower region 32 and the surface sheet 21 without a gap.
  • the second joint portion 42 is formed by joining the outer surfaces of the lower region 32 and the topsheet 21 continuously over the entire region where the lower region 32 and the topsheet 21 overlap. By doing so, the lower region 32 and the surface sheet 21 can be joined more firmly.
  • the leakage-preventing cuff-forming elastic member 50 is arranged in the upper region 31, and the leakage-preventing cuff-forming elastic member 50 is arranged at least at a position overlapping the non-bonded region 43 in the longitudinal direction X. It is preferable that This makes it easier for the lower region 32 to stand up from the topsheet 21 in the non-bonded region 43 , so that a pocket can be easily formed between the lower region 32 and the topsheet 21 . As a result, liquid leakage can be prevented more effectively.
  • the leak-proof cuff-forming elastic member 50d positioned most inward in the lateral direction Y is arranged at a position overlapping the non-bonded region 43 in the longitudinal direction X.
  • the remaining three leak-preventing cuff-forming elastic members 50a to 50c are arranged at positions overlapping the second joint portion 42 in the longitudinal direction X. As shown in FIG.
  • the second joint portion 42 may be formed by continuously joining the lower region 32 and the topsheet 21 along the longitudinal direction X, or the lower region 32 and the topsheet 21 may be joined together in the longitudinal direction X. It may be formed by joining discontinuously along. From the viewpoint of making it difficult for the leak-proof cuff 24 to come off from the absorbent main body 2, the second joint 42 is such that the lower region 32 and the surface sheet 21 are continuously joined along the longitudinal direction X, as in the diaper 1. It is preferably formed by “Continuously joined” means that (1) the lower region 32 and the topsheet 21 are joined without any gap along the longitudinal direction X, and (2) the lower region 32 and the topsheet 21 are joined together.
  • the second joint portion 42 is joined intermittently along the longitudinal direction X, when the second joint portion 42 is viewed as a whole, the lower region 32 and the surface are separated from each other so that the second joint portion 42 can be recognized as being formed continuously. It includes both that the sheet 21 is joined.
  • the surface sheet 21 for example, a hydrophilic liquid-permeable sheet, a nonwoven fabric, a perforated film, or the like can be used.
  • the surface sheet 21 may have an uneven surface on the side facing the skin.
  • a plurality of projections can be formed in a scattered pattern on the side of the surface facing the skin of the topsheet 21 .
  • ridges and grooves extending in one direction may be alternately formed on the skin-facing surface of the topsheet 21 .
  • the topsheet 21 may be formed using two or more nonwoven fabrics.
  • the back sheet 22 for example, a liquid impermeable film, a spunbond/meltblown/spunbond laminated nonwoven fabric, or the like can be used.
  • a plurality of micropores may be provided in the liquid-impermeable film to impart water vapor permeability to the film.
  • the outer surface of the backsheet 22 may be laminated with a sheet having good texture such as a non-woven fabric.
  • the absorber 23 has an absorbent core.
  • the absorbent core may be, for example, a pile of hydrophilic fibers such as cellulose such as pulp, a mixed pile of the hydrophilic fibers and an absorbent polymer, a pile of absorbent polymers, or two absorbent cores. It is composed of a laminate structure or the like in which an absorbent polymer is held between sheets. At least the skin-facing surface of the absorbent core may be covered with a liquid-permeable core-wrap sheet, or the entire surface including the skin-facing surface and the non-skin-facing surface may be covered with the core-wrap sheet.
  • the core wrap sheet for example, a thin paper made of hydrophilic fibers, a liquid-permeable nonwoven fabric, or the like can be used.
  • a hydrophobic nonwoven fabric can be used as the leak-proof cuff 24, for example.
  • a hydrophobic nonwoven fabric can be used.
  • an air-through nonwoven fabric, a spunbond nonwoven fabric, a spunbond/meltblown/spunbond laminated nonwoven fabric, etc. can be used.
  • a hydrophobic resin film, a laminate of the resin film and the nonwoven fabric, and the like can be used.
  • the absorbent article of the present invention has been described above based on its preferred embodiment, the absorbent article of the present invention is not limited to the above-described embodiment.
  • the first joint portion 41 is formed by continuously joining the upper region 31 and the lower region 32 without a gap. Only a part of the region 31 and the lower region 32 may be joined together, or the upper region 31 and the lower region 32 may be discontinuously joined in one or both of the longitudinal direction X and the lateral direction Y. It may be formed by being For example, the first joint portion may be formed by discontinuously joining the upper region 31 and the lower region 32 in a scattered manner.
  • the first joint portion 41 is joined by heat-sealing, when the first joint portion 41 is formed by discontinuously joining the upper region 31 and the lower region 32 in the form of scattered dots, the first The portion of the joint 41 where the upper region 31 and the lower region 32 are not joined is raised toward the skin-facing surface side compared to the portion where the upper region 31 and the lower region 32 are joined. transform. Therefore, the portion where the upper region 31 and the lower region 32 are joined hardly touches the wearer's skin, and the portion where the upper region 31 and the lower region 32 are not joined mainly touches the wearer's skin. Therefore, the texture of the diaper 1 can be further improved.
  • the length D1 of the first joint portion 41 in the lateral direction Y is It is the distance in the horizontal direction Y from the outer end of the outermost joint point to the inner end of the innermost joint point among the plurality of joint points between the region 31 and the lower region 32 .
  • the length L1 of the first joint portion 41 in the vertical direction X is It is the distance in the vertical direction X from the outer end of the outermost joint point to the inner end of the innermost joint point among the plurality of joint points between the region 31 and the lower region 32 .
  • the second joint portion 42 is formed by continuously joining the lower region 32 and the surface sheet 21 without gaps. Only a part of the region 31 and the lower region 32 may be joined together, or the lower region 32 and the surface sheet 21 may be discontinuously joined in one or both of the longitudinal direction X and the transverse direction Y. It may be formed by being For example, the second joint portion may be formed by discontinuously joining the lower region 32 and the surface sheet 21 in a dotted pattern.
  • the length D2 of the second joint portion 42 in the lateral direction Y is It is the distance in the horizontal direction Y from the outer end of the outermost joint point to the inner end of the innermost joint point among the plurality of joint points between the region 32 and the surface sheet 21 .
  • the length L2 of the second joint portion 42 in the longitudinal direction X is the lower region It is the distance in the longitudinal direction X from the outer end of the outermost joint to the inner end of the innermost joint among the plurality of joints between 32 and the surface sheet 21 .
  • the diaper 1 shown in FIG. 1 has four leak-preventing cuff-forming elastic members 50, but the number of leak-preventing cuff-forming elastic members 50 may be one, two, or three. , or five or more.
  • the abdominal exterior body 6A and the dorsal exterior body 6B may be configured by one continuous exterior body.
  • the absorbent article of the present invention is not limited to diapers, and the present invention can be applied to other absorbent articles having leak-proof cuffs.
  • the present invention further discloses the following absorbent articles regarding the above-described embodiments.
  • ⁇ 1> A longitudinal direction corresponding to the front-rear direction of the wearer and a lateral direction orthogonal to the longitudinal direction, and a ventral portion and a dorsal portion, and a crotch portion located between the ventral portion and the dorsal portion.
  • Leakage-preventing cuffs extending along the longitudinal direction are provided on the skin-facing side of each of the lateral side regions of the absorbent body,
  • the leak-preventing cuff is divided into an upper region and a lower region by folding at a fold portion extending along the longitudinal direction of the leak-preventing cuff, the leak-preventing cuff folded at the fold, wherein the fold is located laterally inward of a free edge of the leak-preventing cuff,
  • the upper region and the lower region are joined at their outer surfaces to form a first joint, and the lower region has an inner surface which is the surface of the absorbent body.
  • the absorbent article wherein the length of the second joint portion along the longitudinal direction is longer than the length of the first joint portion.
  • the ratio of the length of the second joint to the length of the first joint is preferably 1.01 or more and 1.24 or less, more preferably 1.03 or more and 1.22 or less, and still more preferably 1.05 or more and 1.05 or more. .20 or less, the absorbent article according to the above ⁇ 1>.
  • the ratio of the length of the first joint portion to the total length of the absorbent article in the longitudinal direction is preferably 0.05 or more and 0.12 or less, more preferably 0.07 or more and 0.11 or less, and still more preferably 0.07 or more.
  • the absorbent article according to ⁇ 1> or ⁇ 2> which is 08 or more and 0.11 or less.
  • the ratio of the length of the second joint portion to the total length of the absorbent article in the longitudinal direction is preferably 0.08 or more and 0.15 or less, more preferably 0.09 or more and 0.14 or less, and still more preferably 0.09 or more.
  • ⁇ 6> Between the fold and the free edge, the upper and lower regions are joined at their outer surfaces continuously across the region where they overlap to form a first joint.
  • ⁇ 7> The absorption according to any one of ⁇ 1> to ⁇ 5>, wherein the horizontal length of the first joint portion is shorter than the horizontal length from the fold portion to the free edge portion. sexual goods.
  • ⁇ 8> The absorbent article according to any one of ⁇ 1> to ⁇ 7>, wherein an elastic member extending in the longitudinal direction is arranged in the upper region.
  • ⁇ 9> The absorbent article according to ⁇ 8>, wherein only one elastic member is arranged.
  • ⁇ 10> The absorbent article according to ⁇ 8>, wherein a plurality of the elastic members are arranged.
  • the ratio of the lateral length of the second joint to the lateral length from the crease to the free edge is preferably 0.50 or more and 0.95 or less, more preferably 0.60 or more.
  • An elastic member extending along the longitudinal direction is arranged in the upper region, The absorbent article according to ⁇ 12> or ⁇ 13>, wherein the elastic member is arranged at a position overlapping the non-bonded region in the longitudinal direction.
  • An elastic member extending along the longitudinal direction is arranged in the upper region, any one of ⁇ 12> to ⁇ 14>, wherein, of the elastic members, the elastic member located furthest inward in the lateral direction is arranged at a position overlapping the non-bonded region in the longitudinal direction;
  • the second joint portion is formed by discontinuously joining the lower region and the surface sheet in one or both of the longitudinal direction and the lateral direction, the ⁇ 1> to the ⁇ 15>
  • the absorbent article according to any one of 1. ⁇ 19> The absorbent article according to any one of ⁇ 1> to ⁇ 18>, wherein the second joint portion is formed by bonding with a hot melt adhesive.
  • ⁇ 20> The absorbent according to any one of ⁇ 1> to ⁇ 19>, wherein the first joint portion is formed by discontinuously joining the upper region and the lower region in a scattered manner. Goods.
  • ⁇ 21> The absorbent article according to any one of ⁇ 1> to ⁇ 19>, wherein the first joint portion is formed by continuously joining the upper region and the lower region without a gap.
  • ⁇ 22> The absorbent article according to any one of ⁇ 1> to ⁇ 21>, wherein the surface sheet is a hydrophilic liquid-permeable sheet, a nonwoven fabric, or a perforated film.
  • the surface sheet has an uneven surface on the side facing the skin.
  • the back sheet of the absorbent main body is a liquid-impermeable film, a spunbond/meltblown/spunbond laminated nonwoven fabric, or a liquid-impermeable film provided with a plurality of fine holes to impart water vapor permeability to the film.
  • the absorbent article according to any one of ⁇ 1> to ⁇ 23> above.
  • the absorbent body of the absorbent main body comprises an absorbent core,
  • the absorbent core includes a pile of hydrophilic fibers such as cellulose such as pulp, a mixed pile of hydrophilic fibers and absorbent polymer, a pile of absorbent polymer, and two absorbent sheets.
  • the absorbent article according to any one of ⁇ 1> to ⁇ 24> which is composed of a laminated structure having an absorbent polymer carried therebetween.
  • the absorbent body of the absorbent main body comprises an absorbent core,
  • an absorbent article that can maintain fit and texture, and prevent peeling and twisting of the leak-proof cuff.

Landscapes

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

Abstract

Selon l'invention, un article absorbant comporte, dans chaque région latérale en direction transversale (Y), un revers antifuite (24) qui s'étend en direction longitudinale (X). Ce revers antifuite (24) est divisé en une région supérieure (31) repliée en un pli (30) suivant la direction longitudinale (X) du revers, et en une région inférieure (32). Lorsque le revers antifuite (24) est en condition repliée en un pli (30), ce pli (30) est situé davantage à l'intérieur en direction transversale (Y) qu'une partie libre (24a) du revers antifuite (24). Dans une région extrémité en direction longitudinale (X), la région supérieure (31) et la région inférieure (32) sont collées entre elles au niveau de leur surface externe pour former une première partie jointe (41), la région inférieure (32) est collée au niveau de sa surface interne avec une feuille superficielle (21) pour former une deuxième partie jointe (42), la longueur (L2) de cette deuxième partie jointe (42) suivant la direction longitudinale (X) est supérieure à la longueur (L1) de la première partie jointe (41).
PCT/JP2022/024245 2021-07-16 2022-06-17 Article absorbant WO2023286523A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280049216.XA CN117642141A (zh) 2021-07-16 2022-06-17 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021117639A JP2023013449A (ja) 2021-07-16 2021-07-16 吸収性物品
JP2021-117639 2021-07-16

Publications (1)

Publication Number Publication Date
WO2023286523A1 true WO2023286523A1 (fr) 2023-01-19

Family

ID=84919291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/024245 WO2023286523A1 (fr) 2021-07-16 2022-06-17 Article absorbant

Country Status (3)

Country Link
JP (1) JP2023013449A (fr)
CN (1) CN117642141A (fr)
WO (1) WO2023286523A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012501765A (ja) * 2008-09-10 2012-01-26 パウル ハルトマン アクチェンゲゼルシャフト パンツ型の失禁用品
JP2015171400A (ja) * 2014-03-11 2015-10-01 大王製紙株式会社 使い捨て紙おむつ
JP2017113347A (ja) * 2015-12-25 2017-06-29 ユニ・チャーム株式会社 パンツ型使い捨ておむつ
JP2019092858A (ja) * 2017-11-22 2019-06-20 花王株式会社 吸収性物品
WO2019123663A1 (fr) * 2017-12-22 2019-06-27 花王株式会社 Couche jetable
WO2020241561A1 (fr) * 2019-05-31 2020-12-03 花王株式会社 Couche jetable
WO2020255525A1 (fr) * 2019-06-20 2020-12-24 ユニ・チャーム株式会社 Article absorbant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012501765A (ja) * 2008-09-10 2012-01-26 パウル ハルトマン アクチェンゲゼルシャフト パンツ型の失禁用品
JP2015171400A (ja) * 2014-03-11 2015-10-01 大王製紙株式会社 使い捨て紙おむつ
JP2017113347A (ja) * 2015-12-25 2017-06-29 ユニ・チャーム株式会社 パンツ型使い捨ておむつ
JP2019092858A (ja) * 2017-11-22 2019-06-20 花王株式会社 吸収性物品
WO2019123663A1 (fr) * 2017-12-22 2019-06-27 花王株式会社 Couche jetable
WO2020241561A1 (fr) * 2019-05-31 2020-12-03 花王株式会社 Couche jetable
WO2020255525A1 (fr) * 2019-06-20 2020-12-24 ユニ・チャーム株式会社 Article absorbant

Also Published As

Publication number Publication date
JP2023013449A (ja) 2023-01-26
CN117642141A (zh) 2024-03-01

Similar Documents

Publication Publication Date Title
JP3862483B2 (ja) トランクス型の使い捨てパンツ
TWI441622B (zh) Absorbent items
TWI236366B (en) Disposable pants-type wearing article
JP4996508B2 (ja) 吸収性物品
TWI290043B (en) Disposable wearing article
JP5000551B2 (ja) 吸収性物品及び吸収性本体保持カバー
JP6083893B2 (ja) 使い捨ておむつ
TWI519284B (zh) Wearing items
WO2003075815A1 (fr) Couche jetable de type culotte
JP5346277B2 (ja) パンツ型の使い捨て着用物品
JP2005342203A (ja) 使い捨ておむつ
JP5777271B2 (ja) 着用物品
JP2017148111A (ja) パンツ型吸収性物品
JP5766421B2 (ja) 使い捨てのパンツ型着用物品
JP5536425B2 (ja) 吸収性物品
JP2013094278A (ja) 使い捨て吸収性物品
JP5654318B2 (ja) 吸収性物品
WO2004037144A1 (fr) Couche jetable
US8728050B2 (en) Absorbent article provided with a barrier sheet
WO2004091459A1 (fr) Vetement de type culotte jetable
JP6396783B2 (ja) 吸収性物品
WO2023286523A1 (fr) Article absorbant
JP6062707B2 (ja) 吸収性パッド
WO2017159293A1 (fr) Couche jetable
WO2023090407A1 (fr) Article absorbant

Legal Events

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

Ref document number: 22841867

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202280049216.X

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2024103834

Country of ref document: RU

NENP Non-entry into the national phase

Ref country code: DE