WO2013047004A1 - Disposable wearable article - Google Patents

Disposable wearable article Download PDF

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Publication number
WO2013047004A1
WO2013047004A1 PCT/JP2012/071002 JP2012071002W WO2013047004A1 WO 2013047004 A1 WO2013047004 A1 WO 2013047004A1 JP 2012071002 W JP2012071002 W JP 2012071002W WO 2013047004 A1 WO2013047004 A1 WO 2013047004A1
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WO
WIPO (PCT)
Prior art keywords
sheet
absorbing structure
region
waist
waist region
Prior art date
Application number
PCT/JP2012/071002
Other languages
French (fr)
Japanese (ja)
Inventor
龍一 神山
俊光 馬場
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2013047004A1 publication Critical patent/WO2013047004A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent 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 outer layers
    • A61F13/514Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs

Definitions

  • the present invention relates to a disposable wearing article, and more particularly, to a disposable wearing article such as a disposable diaper using a stretchable sheet in the waist region, disposable toilet training pants, disposable incontinence pants, disposable sanitary pants.
  • Patent Document 1 discloses that a back sheet of a disposable diaper is constituted by a stretchable inner sheet and a non-stretchable outer sheet.
  • JP-A-10-99373 JP 10-99373 A
  • the absorber is disposed between the top sheet and the back sheet, and the front and back sheets are directly joined on the outside in the longitudinal direction of the absorber.
  • the absorber when wearing this, if the end part where the front and back sheets were directly joined was pulled, there was a problem that these front and back sheets would break from the boundary with the part overlapping the absorber. .
  • the present invention has a longitudinal direction and a lateral direction, and has a skin facing surface and a non-skin facing surface that is the opposite side thereof, a first waist region that is one of the front and rear waist regions, and a first that is the other of the front and rear waist regions.
  • a chassis having a two-waist region, a crotch region located between the first and second waist regions, and a liquid-absorbing structure extending from the crotch region to at least the second waist region.
  • the present invention relates to an improvement of a disposable wearing article having a stretchable sheet and a stretchable sheet laminated on the non-stretchable sheet and stretchable in the lateral direction.
  • the present invention provides the disposable wearing article, wherein the liquid absorbing structure has first and second end edges extending in the lateral direction, and a leakproof sheet is provided between the liquid absorbing structure and the chassis. Is disposed, and the leak-proof sheet has an extending portion extending from the second end edge of the liquid-absorbing structure to the outside in the longitudinal direction, and the non-stretchable sheet and the stretchable sheet are at least While being located in the second waist region, the stretchable sheet is disposed so as to overlap the non-stretchable sheet, the second end edge of the liquid absorbing structure, and the extending portion, and the stretchable sheet The non-stretchable sheet and the non-stretchable sheet are joined to each other through the leakproof sheet at least partially.
  • the extension portion of the leak-proof sheet is formed on the outer side in the longitudinal direction of the liquid-absorbing structure, when the end portion of the wearing article is sandwiched and pulled Then, the tensile force is distributed to the extension part of the leak-proof sheet and the edge of the liquid absorbing structure. Therefore, it is possible to prevent the chassis from being broken along the edge of the liquid absorbing structure.
  • FIG. 4 is a schematic sectional view taken along line IV-IV in FIG. 2.
  • a diaper 1 has a wearer's skin-facing surface and a non-skin-facing surface that is the opposite side of the wearer, and forms a base form of the diaper 1.
  • seat 50 are included.
  • each elastic body is shown in a state of being stretched against its contraction force.
  • the diaper 1 has a virtual vertical center line PP that bisects the length dimension in the horizontal direction X and a virtual horizontal center line QQ that bisects the length dimension in the horizontal direction Y. It is almost symmetrical with respect to the line PP.
  • the diaper 1 includes a front waist region 11, a rear waist region 12, a crotch region 13 positioned between the front and rear waist regions 11, 12, front and rear end edges 14 and 15 extending in the horizontal direction X, and both side edges 16 extending in the vertical direction Y. And have.
  • the side edges 16 are formed with seam portions 17 extending intermittently in the longitudinal direction Y, and the front and rear waist regions 11 and 12 are connected at the seam portions 17, thereby forming waist openings at the front and rear end edges 14 and 15.
  • Leg openings are formed at both side edges 16 in the crotch region 13.
  • the chassis 10 is positioned on the non-skin facing surface, and connects the front and rear waist regions 11 and 12 and the non-stretch front and rear waist seats 21 and 22 that define a part of the crotch region 13 and the front and rear waist seats 21 and 22. And a non-stretchable crotch sheet 23 that defines the crotch region 13, a first stretchable sheet 31 disposed in the front waist region 11, and a second stretchable sheet 32 disposed in the rear waist region 12. .
  • the front and rear waist sheets 21 and 22 have the same dimensions in the lateral direction X, and these dimensions are the dimensions of the front and rear waist regions 11 and 12 in the lateral direction X.
  • Examples of the front and rear waist sheets 21 and 22 and the crotch sheet 23 include a mass of about 10 to 40 g / m 2 , preferably about 13 to 20 g / m 2 , and a fiber density of about 0.03 to 0.10 g / cm 3 , Preferably, a heat-bondable spunbond fiber nonwoven fabric of about 0.04 to 0.09 g / cm 3 can be used.
  • the front and rear waist sheets 21 and 22 and the crotch sheet 23 do not shrink at least elastically, and form a non-stretchable sheet according to the present invention.
  • the first and second stretchable sheets 31 and 32 are substantially rectangular and extend in the lateral direction X between the side edges 16 of the first and second waist regions 11 and 12.
  • the first and second elastic sheets 31, 32 have, for example, a mass of about 20 to 50 g / m 2 , preferably about 30 to 40 g / m 2 , and a fiber density of about 0.01 to 0.04 g / cm 3 ,
  • An elastic fiber non-woven fabric made of heat-fusible elastomer fibers in the range of about 0.025 to 0.035 g / cm 3 can be used.
  • thermoplastic polyurethane polymers and thermoplastic polymers other than thermoplastic polyurethane polymers for example, polymers of polyolefins such as styrene elastomers, polyolefin elastomers, vinyl chloride elastomers, amide elastomers, polyethylene, polypropylene, polystyrene, etc. It can form from the mixed fiber containing the fiber which consists of a mixture.
  • first and second stretchable sheets 31 and 32 are elastically stretchable at least in the lateral direction X.
  • the liquid absorption structure 40 has a vertical rectangular shape defined by front and rear end edges 40a and 40b extending in the horizontal direction X and both side edges 40c extending in the vertical direction Y.
  • the liquid absorbing structure 40 extends from the crotch region 13 to the front and rear waist regions 11 and 12, the front end edge 40 a is located in the front waist region 11, and the rear end edge 40 b is located in the rear waist region 12.
  • the dimension in the longitudinal direction Y of the liquid absorbing structure 40 that overlaps the rear waist region 12 is larger than the dimension in the longitudinal direction Y of the liquid absorbing structure 40 that overlaps the front waist region 11. That is, the liquid absorption structure 40 is unevenly distributed on the front waist region 11 side. This is because, when the diaper 1 is worn, the urine excretion position is located closer to the front waist region 11 than the virtual lateral center line QQ.
  • the liquid absorbent structure 40 includes an absorbent body 41 formed by covering a liquid absorbent core made of a mixture of fluff pulp and superabsorbent polymer particles with a liquid diffusible sheet (not shown), and an absorbent body 41.
  • the body side liner 42 which covers the absorption surface
  • the covering sheet 43 which covers both side edges from the bottom surface of the absorber 41 and is bent to the absorption surface.
  • the cover sheet 43 is bent into the absorption surface to form a pair of sleeve-shaped side flaps 44.
  • a strand-like or string-like side elastic body 45 extending in the longitudinal direction Y is attached to the side flap 44 so as to be shrinkable in a stretched state via a known joining means such as a hot melt adhesive.
  • the covering sheets 43 are joined to each other on the bottom surface of the absorbent body 41 by a known joining means such as a hot melt adhesive (not shown).
  • a known joining means such as a hot melt adhesive (not shown).
  • the side flap 44 only the front and rear ends thereof are attached to the body side by the joining means (not shown). It is joined to the liner 42, and the central portion in the longitudinal direction Y is separable from the body side liner 42. Therefore, the side flap 44 is separated from the body side liner 42 by the contraction action of the side elastic body 45 to form a barrier or a gasket cuff, and the side leakage of excrement can be prevented.
  • the outer surface of the coating sheet 43 is being fixed to the crotch sheet 23 via the hot-melt-adhesive (not shown).
  • the first stretchable sheet 31 overlaps with the front end edge 40a of the liquid absorbing structure 40, is disposed between the liquid absorbing structure 40 and the front waist sheet 21, and is attached so as to be contractible in an extended state in the lateral direction X. ing.
  • the front waist sheet 21 is folded inward in the longitudinal direction Y along a folding line 24 extending in the lateral direction X, and a folding region 25 is formed.
  • the bent region 25 overlaps the front end edge 40 a of the liquid absorbing structure 40 and also overlaps the first stretchable sheet 31.
  • a folding line 24 forms the front edge 14 of the diaper 1.
  • a plurality of strand-like or string-like front waist elastic bodies 61 are attached along the front end edge 14 so as to be contractible in a stretched state in the lateral direction X. ing.
  • the front waist region 11 is elasticized in the lateral direction X by the first elastic sheet 31 and the front waist elastic body 61 so as to be in close contact with the wearer.
  • the first elastic sheet 31 is involved in adhesion to the wearer's abdomen
  • the front waist elastic body 61 is involved in preventing leakage from the waist opening.
  • the second stretchable sheet 32 overlaps to cover the rear end edge 40b of the liquid absorbing structure 40, is disposed on the skin-facing surface of the liquid absorbing structure 40, and is attached so as to be contractible in the stretched state in the lateral direction X. ing.
  • the rear waist sheet 22 is folded inward in the vertical direction Y along a folding line 26 extending in the lateral direction X, and a folding region 27 is formed.
  • the bent region 27 overlaps the second stretchable sheet 32 and also overlaps an extension portion 51 of a leak-proof sheet 50 described later.
  • a folding line 26 forms the rear edge 15 of the diaper 1.
  • a plurality of strand-shaped or string-shaped rear waist elastic bodies 62 are attached along the rear end edge 15 so as to be contractible in an extended state in the lateral direction X. It has been.
  • the rear waist region 12 is elasticized in the lateral direction X by the second elastic sheet 32 and the rear waist elastic body 62 so as to be in close contact with the wearer.
  • the second elastic sheet 32 is involved in adhesion to the wearer's abdomen, and the rear waist elastic body 62 is involved in preventing leakage from the waist opening.
  • Front and rear leg elastic bodies 63 and 64 are attached to regions of the front and rear waist sheets 21 and 22 forming leg openings so as to be contracted in an extended state.
  • the front and rear leg elastic bodies 63 and 64 have a mass of 20 to 50 g / m 2 , preferably 30 to 40 g / m 2 , and a fiber density of 0.01 to 0.04 g / cm 3 , preferably 0.025 to 0.00. It is preferably formed from a stretchable fiber nonwoven fabric made of heat-fusible elastomer fibers in the range of 035 g / cm 3 .
  • thermoplastic polyurethane polymers and thermoplastic polymers other than thermoplastic polyurethane polymers for example, polymers of polyolefins such as styrene elastomers, polyolefin elastomers, vinyl chloride elastomers, amide elastomers, polyethylene, polypropylene, polystyrene, etc. It can form from the mixed fiber containing the fiber which consists of a mixture. Furthermore, stretchability can be improved by stretching such stretchable fiber nonwoven fabric. The stretching treatment can be carried out by allowing the stretchable fiber nonwoven fabric to pass between a pair of gears, thereby forming a stretched portion and a non-stretched portion.
  • the front and rear leg elastic bodies 63 and 64 can be curved along the side edge 16 in the crotch region 13 which is formed into a concave curve by performing a stretching process. In other words, since the stretchability is improved by the stretching treatment, it is possible to prevent the occurrence of deflection due to the difference between the inner and outer arcs at the curved portion. Therefore, the front and rear leg elastic bodies 63 and 64 can be in close contact with the wearer's body without being separated from the front and rear waist sheets 21 and 22.
  • a leakproof sheet 50 is disposed between the crotch sheet 23 and the front and rear waist sheets 21 and 22.
  • a moisture-permeable and liquid-impervious plastic film or a laminate of this film and a fiber nonwoven fabric can be used as the leak-proof sheet 50.
  • the leak-proof sheet 50 is disposed so as to overlap the liquid absorbing structure 40, and the dimension in the longitudinal direction Y is larger than that of the liquid absorbing structure 40.
  • Such a leak-proof sheet 50 extends from the rear end edge 40b of the liquid-absorbing structure 40 to the outside in the vertical direction Y, and an extension portion 51 is formed.
  • the extension 51 has a length in the longitudinal direction Y of about 10 to 40 mm, preferably about 15 to 30 mm.
  • a tape 70 used when the diaper 1 is discarded is attached to the non-skin facing surface of the rear waist sheet 22 via a joint 71.
  • the joining portion 71 is formed by a known joining means such as a hot melt adhesive.
  • the tape 70 is bonded to the fixing portion 70a attached by the joining portion 71 and an adhesive (not shown) to the fixing portion 70a.
  • the fixing portion 70a is attached.
  • a separation portion 70b that can be separated from the substrate.
  • the tape 70 is used for rounding and fixing the diaper 1 when the diaper 1 is discarded after use, and fixing the diaper 1 in a rounded state by the adhesive remaining on the peeling portion 70b. Can do.
  • the second stretchable sheet 32 overlaps so as to cover the rear end edge 40 b of the liquid absorbing structure 40, and a part of the second elastic sheet 32 passes through the extending portion 51 of the leak-proof sheet 50. 22 are joined to each other by a known means such as a hot melt adhesive (not shown).
  • a hot melt adhesive not shown
  • the tensile force at this time is such that the rear end edge 40c of the liquid absorbing structure 40 and the second stretchable sheet 32 are joined, the joined portion between the second stretchable sheet 32 and the extended portion 51, the extended portion 51 and the rear portion. Dispersed in the joint portion with the waist sheet 22. Therefore, it is possible to prevent the sheet from being broken due to the concentration of the tensile force.
  • the wearer is an infant, he may hate wearing a diaper and run around.
  • the diaper 1 is put on the infant after chasing after the infant, so that the rear waist region 12 is sandwiched and pulled more strongly. Therefore, the sheet is more easily broken, but this can be prevented in the present invention.
  • the rear waist region 12 has a smaller area where the liquid absorbing structure 40 overlaps compared to the front waist region 11, the rear waist region 12 is easily pinched and the tensile force is increased, and the sheet is also easily broken. Since the extension part 51 of the leak-proof sheet
  • the rear waist sheet 22 and the second stretchable sheet 32 are joined to each other via the extending portion 51 of the leak-proof sheet 50. Since these sheets 22 and 32 are formed of fiber nonwoven fabrics, the adhesive area is small and they are easy to peel off. In particular, the second elastic sheet 32 elastically expands and contracts, while the rear waist sheet 22 does not expand and contract. Therefore, these elongations differ greatly, and when they are held and pulled, they are particularly easily peeled off. Thus, when the 2nd elastic sheet 32 and the back waist sheet 22 peel, compared with the case where these are joined, intensity
  • the bent region 27 of the rear waist sheet 22 is laminated on the second stretchable sheet 32, and these are joined to each other by a joining means such as a hot melt adhesive (not shown). That is, the second stretchable sheet 32 is sandwiched between the skin facing surface and the non-skin facing surface by the non-stretchable rear waist sheet 22. Therefore, when the bent region 27 is sandwiched and pulled, the second stretchable sheet 32 is not elastically extended, and the separation of these sheets can be further prevented.
  • the tape 70 is attached to the rear waist sheet 22.
  • the joining portion 71 that joins the tape 70 is positioned so as to overlap the extending portion 51 of the leak-proof sheet 50.
  • the joint portion 71 is located on the outer side in the vertical direction Y from the rear end edge 40c of the liquid absorbing structure 40, that is, on the rear end edge 15 side.
  • the stretchability of the front and rear waistsheets 21 and 22 and the leak-proof sheet 50 that are non-stretchable sheets is hindered. It will not be done.
  • the front and rear waist sheets 21 and 22 are formed of a fiber nonwoven fabric, and can be somewhat expanded by slightly untangling these fibers.
  • the leak-proof sheet 50 uses a plastic film, it may be slightly plastically deformed.
  • the leak-proof sheet 50 is made smaller than the dimension in the lateral direction X of the chassis 10, that is, the dimension in the lateral direction X of the front and rear waist sheets 21, 22, and the virtual longitudinal center line PP Therefore, the elastic expansion and contraction of the first and second elastic sheets 31 and 32 is not hindered.
  • the leak-proof sheet 50 is disposed away from the folding line 26, but it may be extended to the folding line 26. In this case, since the second stretchable sheet 32 and the rear waist sheet 22 are joined via the leak-proof sheet 50 in a wider range, breakage of these sheets can be prevented in a wider range. . Moreover, since the rear waist region 12 is formed of a fiber nonwoven fabric and the leak-proof sheet 50 is formed of a plastic film or the like, the breaking strength of the leak-proof sheet 50 is increased. In the formed extension part 51, the diaper 1 is hard to be fractured.
  • the second stretchable sheet 32 and the bent region 27 of the rear waistsheet 22 are in a positional relationship where they overlap each other, but this is not a limitation, and they are separated in the longitudinal direction Y, You may be made not to mutually overlap.
  • the bent region 27 is directly joined to the extending portion 51 of the leak-proof sheet 50.
  • the tape 70 is not an essential configuration and may not be attached.
  • the dimension in the longitudinal direction Y of the extending portion 51 is about 10 to 40 mm, but if it is smaller than 10 mm, the area of the second stretchable sheet 32 and the rear waist sheet 22 joined via this becomes small. Thus, these sheets are easily peeled off. If the dimension is larger than 40 mm, the air permeability of the diaper 1 may be lowered, or the waist region may be hardened and hinder its contraction.
  • the first and second stretchable sheets 31 and 32 may be formed from a mixed fiber of an elastomer fiber and a non-elastomeric fiber.
  • this mixed fiber When this mixed fiber is used, the friction with respect to a wearer's skin by an elastomer fiber can be reduced.
  • non-elastomeric fibers it is possible to improve the slip of the wearer against the skin, and to improve the flexibility and touch of the first and second stretchable sheets 31 and 32.
  • the disposable wearing article 1 has a longitudinal direction Y and a lateral direction X, a skin facing surface and a non-skin facing surface that is the opposite side thereof, and a first waist region that is one of the front and rear waist regions 11 and 12;
  • a chassis 10 having a second waist region, which is the other of the front and rear waist regions 11, 12, and a crotch region 13 positioned between the first and second waist regions; and at least the second from the crotch region 13
  • the chassis 10 includes non-stretchable sheets 21, 22, 23, and a stretchable sheet 31, which is stacked on the non-stretchable sheet and can be stretched in the lateral direction X. 32.
  • the liquid absorbing structure 40 has first and second end edges 40 a and 40 b extending in the lateral direction X, and a leak-proof sheet 50 is disposed between the liquid absorbing structure 40 and the chassis 10.
  • the leak-proof sheet 50 has an extending portion 51 that extends from the second end edge 40b of the liquid absorbing structure 40 to the outside in the longitudinal direction Y.
  • the non-stretchable sheets 21, 22, 23 and the stretchable sheets 31, 32 are positioned at least in the second waist region, and the stretchable sheets 31, 32 are the non-stretchable sheets 21, 22. 23, the second end edge 40b of the liquid-absorbing structure 40, and the extending portion 51, and the stretchable sheets 31, 32 and the non-stretchable sheets 21, 22, 23 are At least a part thereof is joined to each other via the leak-proof sheet 50.
  • the above invention can include at least the following embodiments.
  • the liquid absorption structure 40 extends from the crotch region 13 to the first and second waist regions, and the dimension in the longitudinal direction Y of the liquid absorption structure 40 that overlaps the second waist region. Is made larger than the dimension in the longitudinal direction Y of the liquid absorption structure 40 overlapping the first waist region.
  • the disposal tape 70 is attached to the non-skin facing surface of the chassis 10 via a joint portion 71, and the joint portion 71 overlaps the extension portion 51 of the leak-proof sheet 50. It is formed.
  • the non-stretchable sheets 21 and 22 have folding regions 25 and 27 that are bent inward in the longitudinal direction Y by folding lines 24 and 26 extending in the transverse direction X.
  • the stretchable sheet includes a first stretchable sheet 31 located in the first waist region and a second stretchable sheet 32 located in the second waist region.
  • the dimension in the said horizontal direction X of the said leak-proof sheet 50 is made smaller than the dimension in the said horizontal direction X of a said 2nd waist area.
  • the first waist region is the front waist region 11, and the second waist region is the rear waist region 12.
  • the first and second waist regions are formed of at least a fiber nonwoven fabric, and the leak-proof sheet 50 is formed of at least one of a plastic film and a laminate of the plastic film and the fiber nonwoven fabric. .
  • various known materials that are normally used in this type of field can be used without limitation for each constituent member constituting the disposable wearing article 1. it can. Moreover, the aspect in which the front waist region 11, the back waist region 12, and the crotch region 13 were formed in series may be sufficient as the disposable wearing article 1.
  • first and second are used to simply distinguish elements, positions, etc. of the same name.
  • first waist region means one of the front and rear waist regions, and the “second waist region” means the other.

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

Abstract

Provided is a disposable wearable article which is capable of preventing front and rear flaps from being torn, the flaps being positioned on outer sides of an absorber in the longitudinal direction, using laminated elastic sheets and non-elastic sheets in front and rear waist regions. A chassis (10) of a diaper (1) comprises non-elastic front and rear waist sheets (21, 22), a non-elastic crotch sheet (23), a first elastic sheet (31) disposed in a front waist region (11), and a second elastic sheet (32) disposed in a rear waist region (12). The first elastic sheet (31) overlaps a front edge (40a) of a liquid absorbing structure (40) and is disposed between the liquid absorbing structure (40) and a front waist sheet (21). The second elastic sheet (32) overlaps a rear edge (40b) of the liquid absorbing structure (40) so as to cover the rear edge and is disposed on a skin opposing surface of the liquid absorbing structure (40). A leak proof sheet (50) is disposed between the crotch sheet (23) and the front and rear waist sheets (21, 22). This leak proof sheet (50) extends outwards in the longitudinal direction (Y) from the rear edge (40b) of the liquid absorbing structure (40), and an extension portion (51) is formed thereon. A bending region (27) of a rear waist sheet (22) overlaps the second elastic sheet (32) as well as the extension portion (51) of the leak proof sheet (50).

Description

使い捨て着用物品Disposable wearing items
 本発明は、使い捨て着用物品に関し、より詳しくは、ウエスト域に伸縮性シートを用いた使い捨ておむつ、使い捨てのトイレット・トレーニングパンツ、使い捨て失禁パンツ、使い捨ての生理用パンツ等の使い捨て着用物品に関する。 The present invention relates to a disposable wearing article, and more particularly, to a disposable wearing article such as a disposable diaper using a stretchable sheet in the waist region, disposable toilet training pants, disposable incontinence pants, disposable sanitary pants.
 従来、前後ウエスト域に伸縮性シートを用い、前後ウエスト域を横方向へ弾性化した使い捨ておむつは公知である。例えば、特許文献1には、使い捨ておむつの裏面シートが、伸縮性の内側シートと非伸縮性の外側シートとによって構成されていることが開示されている。 Conventionally, disposable diapers in which an elastic sheet is used for the front and rear waist regions and the front and rear waist regions are elasticized in the lateral direction are known. For example, Patent Document 1 discloses that a back sheet of a disposable diaper is constituted by a stretchable inner sheet and a non-stretchable outer sheet.
特開平10-99373号公報(JP 10-99373 A)JP-A-10-99373 (JP 10-99373 A)
 上記のような特許文献1では、表面シートと裏面シートの間に吸収体が配置され、吸収体の縦方向外側では、表裏面シートが直接接合されている。このようなおむつにおいて、これを着用させる際に、表裏面シートが直接接合された端部を引っ張ると、これら表裏面シートが吸収体に重なる部分との境界から破断してしまうという問題があった。 In Patent Document 1 as described above, the absorber is disposed between the top sheet and the back sheet, and the front and back sheets are directly joined on the outside in the longitudinal direction of the absorber. In such a diaper, when wearing this, if the end part where the front and back sheets were directly joined was pulled, there was a problem that these front and back sheets would break from the boundary with the part overlapping the absorber. .
 この発明では、前後ウエスト域に積層された伸縮性シートと非伸縮性シートとを用い、吸収体の縦方向外側に位置する前後フラップにおける破断を防止可能な使い捨て着用物品を提供することを課題とする。 In this invention, using a stretchable sheet and a non-stretchable sheet laminated in the front and back waist region, it is an object to provide a disposable wearing article capable of preventing breakage in the front and rear flaps positioned on the outer side in the longitudinal direction of the absorber. To do.
 この発明は、縦方向および横方向を有し、肌対向面およびその反対側である非肌対向面と、前後ウエスト域の一方である第1ウエスト域と、前記前後ウエスト域の他方である第2ウエスト域と、前記第1および第2ウエスト域間に位置するクロッチ域とを有するシャーシと、前記クロッチ域から少なくとも前記第2ウエスト域に延びる吸液構造体とを含み、前記シャーシは、非伸縮性シートと、前記非伸縮性シートに積層され前記横方向へ伸縮可能な伸縮性シートとを有する使い捨て着用物品の改良にかかわる。 The present invention has a longitudinal direction and a lateral direction, and has a skin facing surface and a non-skin facing surface that is the opposite side thereof, a first waist region that is one of the front and rear waist regions, and a first that is the other of the front and rear waist regions. A chassis having a two-waist region, a crotch region located between the first and second waist regions, and a liquid-absorbing structure extending from the crotch region to at least the second waist region. The present invention relates to an improvement of a disposable wearing article having a stretchable sheet and a stretchable sheet laminated on the non-stretchable sheet and stretchable in the lateral direction.
 この発明は、前記使い捨て着用物品において、前記吸液構造体は、前記横方向へ延びる第1および第2端縁を有するとともに、前記吸液構造体と前記シャーシとの間には、防漏シートが配置され、前記防漏シートが前記吸液構造体の第2端縁から前記縦方向外側へと延出された延出部を有し、前記非伸縮性シートおよび前記伸縮性シートは、少なくとも前記第2ウエスト域に位置するとともに、前記伸縮性シートは、前記非伸縮性シートと、前記吸液構造体の第2端縁と、前記延出部とに重なって配置され、前記伸縮性シートと前記非伸縮性シートとは、少なくともその一部において、前記防漏シートを介して互いに接合されることを特徴とする。 The present invention provides the disposable wearing article, wherein the liquid absorbing structure has first and second end edges extending in the lateral direction, and a leakproof sheet is provided between the liquid absorbing structure and the chassis. Is disposed, and the leak-proof sheet has an extending portion extending from the second end edge of the liquid-absorbing structure to the outside in the longitudinal direction, and the non-stretchable sheet and the stretchable sheet are at least While being located in the second waist region, the stretchable sheet is disposed so as to overlap the non-stretchable sheet, the second end edge of the liquid absorbing structure, and the extending portion, and the stretchable sheet The non-stretchable sheet and the non-stretchable sheet are joined to each other through the leakproof sheet at least partially.
 この発明の特にそのひとつ以上の実施態様によれば、吸液構造体の縦方向外側に防漏シートの延出部を形成することとしたので、着用物品の端部を挟持して引っ張った際には、その引張力が防漏シートの延出部と、吸液構造体の端縁とに分散される。したがって、吸液構造体の端縁に沿ってシャーシが破れるのを防止することができる。 According to one or more embodiments of the present invention, since the extension portion of the leak-proof sheet is formed on the outer side in the longitudinal direction of the liquid-absorbing structure, when the end portion of the wearing article is sandwiched and pulled Then, the tensile force is distributed to the extension part of the leak-proof sheet and the edge of the liquid absorbing structure. Therefore, it is possible to prevent the chassis from being broken along the edge of the liquid absorbing structure.
この発明に係る使い捨て着用物品の一例としてのおむつの斜視図。The perspective view of the diaper as an example of the disposable wearing article which concerns on this invention. おむつの一部破断展開図。A partially broken development view of a diaper. おむつの分解斜視図。The exploded perspective view of a diaper. 図2のIV-IV線模式断面図。FIG. 4 is a schematic sectional view taken along line IV-IV in FIG. 2.
 図1~図3を参照すると、おむつ1は、着用者の肌対向面およびその反対側である非肌対向面を有し、おむつ1のベース形態を形成するシャーシ10と、シャーシ10の肌対向面に位置する吸液構造体40と、防漏シート50とを含む。
 図2および3において、各弾性体は、その収縮力に抗して伸長させた状態で示している。おむつ1は、横方向Xの長さ寸法を二等分した仮想縦中心線P-P、横方向Yの長さ寸法を二等分した仮想横中心線Q-Qを有し、仮想縦中心線P-Pに関してほぼ対称とされている。
1 to 3, a diaper 1 has a wearer's skin-facing surface and a non-skin-facing surface that is the opposite side of the wearer, and forms a base form of the diaper 1. The liquid absorption structure 40 located in a surface and the leak-proof sheet | seat 50 are included.
2 and 3, each elastic body is shown in a state of being stretched against its contraction force. The diaper 1 has a virtual vertical center line PP that bisects the length dimension in the horizontal direction X and a virtual horizontal center line QQ that bisects the length dimension in the horizontal direction Y. It is almost symmetrical with respect to the line PP.
 おむつ1は前ウエスト域11と、後ウエスト域12と、前後ウエスト域11,12間に位置するクロッチ域13と、横方向Xへ延びる前後端縁14,15および縦方向Yへ延びる両側縁16とを有する。両側縁16には、縦方向Yへ断続的に延びるシーム部17が形成され、シーム部17で前後ウエスト域11,12が連結されることによって、前後端縁14,15でウエスト開口が形成され、クロッチ域13における両側縁16でレッグ開口が形成される。 The diaper 1 includes a front waist region 11, a rear waist region 12, a crotch region 13 positioned between the front and rear waist regions 11, 12, front and rear end edges 14 and 15 extending in the horizontal direction X, and both side edges 16 extending in the vertical direction Y. And have. The side edges 16 are formed with seam portions 17 extending intermittently in the longitudinal direction Y, and the front and rear waist regions 11 and 12 are connected at the seam portions 17, thereby forming waist openings at the front and rear end edges 14 and 15. Leg openings are formed at both side edges 16 in the crotch region 13.
 シャーシ10は、非肌対向面に位置するとともに、前後ウエスト域11,12およびクロッチ域13の一部を画定する非伸縮性の前後ウエストシート21,22と、これら前後ウエストシート21,22を連結するとともにクロッチ域13を画定する非伸縮性のクロッチシート23と、前ウエスト域11に配置された第1伸縮性シート31と、後ウエスト域12に配置された第2伸縮性シート32とを含む。前後ウエストシート21,22は、その横方向Xにおける寸法が等しくされ、これら寸法が前後ウエスト域11,12の横方向Xにおける寸法とされている。 The chassis 10 is positioned on the non-skin facing surface, and connects the front and rear waist regions 11 and 12 and the non-stretch front and rear waist seats 21 and 22 that define a part of the crotch region 13 and the front and rear waist seats 21 and 22. And a non-stretchable crotch sheet 23 that defines the crotch region 13, a first stretchable sheet 31 disposed in the front waist region 11, and a second stretchable sheet 32 disposed in the rear waist region 12. . The front and rear waist sheets 21 and 22 have the same dimensions in the lateral direction X, and these dimensions are the dimensions of the front and rear waist regions 11 and 12 in the lateral direction X.
 前後ウエストシート21,22およびクロッチシート23としては、例えば、質量が約10~40g/m、好ましくは約13~20g/m、繊維密度が約0.03~0.10g/cm、好ましくは約0.04~0.09g/cmである熱融着性のスパンボンド繊維不織布を用いることができる。前後ウエストシート21,22およびクロッチシート23は、少なくとも弾性的に収縮することはなく、この発明における非伸縮性シートを形成している。 Examples of the front and rear waist sheets 21 and 22 and the crotch sheet 23 include a mass of about 10 to 40 g / m 2 , preferably about 13 to 20 g / m 2 , and a fiber density of about 0.03 to 0.10 g / cm 3 , Preferably, a heat-bondable spunbond fiber nonwoven fabric of about 0.04 to 0.09 g / cm 3 can be used. The front and rear waist sheets 21 and 22 and the crotch sheet 23 do not shrink at least elastically, and form a non-stretchable sheet according to the present invention.
 第1および第2伸縮性シート31,32は、ほぼ矩形とされ、第1および第2ウエスト域11,12の側縁16間において横方向Xへ延びている。第1および第2伸縮性シート31,32は、例えば、質量が約20~50g/m、好ましくは約30~40g/m、繊維密度が約0.01~0.04g/cm、好ましくは約0.025~0.035g/cmの範囲である熱融着性のエラストマー繊維からなる伸縮性繊維不織布を用いることができる。具体的には、熱可塑性ポリウレタンポリマーと、熱可塑性ポリウレタンポリマー以外の熱可塑性ポリマー、例えば、スチレン系エラストマー、ポリオレフィン系エラストマー、塩ビ系エラストマー、アミド系エラストマー、ポリエチレン、ポリプロピレン、ポリスチレン等のポリオレフィン類のポリマーとの混合からなる繊維を含む混合繊維から形成することができる。これら第1および第2伸縮性シート31,32は、少なくとも横方向Xにおいて弾性的に伸縮可能とされている。 The first and second stretchable sheets 31 and 32 are substantially rectangular and extend in the lateral direction X between the side edges 16 of the first and second waist regions 11 and 12. The first and second elastic sheets 31, 32 have, for example, a mass of about 20 to 50 g / m 2 , preferably about 30 to 40 g / m 2 , and a fiber density of about 0.01 to 0.04 g / cm 3 , An elastic fiber non-woven fabric made of heat-fusible elastomer fibers in the range of about 0.025 to 0.035 g / cm 3 can be used. Specifically, thermoplastic polyurethane polymers and thermoplastic polymers other than thermoplastic polyurethane polymers, for example, polymers of polyolefins such as styrene elastomers, polyolefin elastomers, vinyl chloride elastomers, amide elastomers, polyethylene, polypropylene, polystyrene, etc. It can form from the mixed fiber containing the fiber which consists of a mixture. These first and second stretchable sheets 31 and 32 are elastically stretchable at least in the lateral direction X.
 吸液構造体40は、横方向Xに延びる前後端縁40a,40bと、縦方向Yへ延びる両側縁40cとによって画定された縦長方形状である。吸液構造体40は、クロッチ域13から前後ウエスト域11,12に延在して、前端縁40aが前ウエスト域11に位置し、後端縁40bが後ウエスト域12に位置している。後ウエスト域12に重なる吸液構造体40の縦方向Yにおける寸法は、前ウエスト域11に重なる吸液構造体40の縦方向Yにおける寸法よりも大きくされている。すなわち、吸液構造体40は前ウエスト域11側に偏在している。おむつ1の着用状態において、尿の排泄位置が仮想横中心線Q-Qよりも前ウエスト域11側に位置するからである。 The liquid absorption structure 40 has a vertical rectangular shape defined by front and rear end edges 40a and 40b extending in the horizontal direction X and both side edges 40c extending in the vertical direction Y. The liquid absorbing structure 40 extends from the crotch region 13 to the front and rear waist regions 11 and 12, the front end edge 40 a is located in the front waist region 11, and the rear end edge 40 b is located in the rear waist region 12. The dimension in the longitudinal direction Y of the liquid absorbing structure 40 that overlaps the rear waist region 12 is larger than the dimension in the longitudinal direction Y of the liquid absorbing structure 40 that overlaps the front waist region 11. That is, the liquid absorption structure 40 is unevenly distributed on the front waist region 11 side. This is because, when the diaper 1 is worn, the urine excretion position is located closer to the front waist region 11 than the virtual lateral center line QQ.
 吸液構造体40は、フラッフパルプと超吸収性ポリマー粒子等との混合からなる吸液性コアを液拡散性シート(図示せず)で覆うことによって形成された吸収体41と、吸収体41の吸収面を覆う身体側ライナ42と、吸収体41の底面から両側縁を覆い、吸収面へと折り曲げられる被覆シート43とを含む。被覆シート43は、吸収面へと折り曲げられることによって一対のスリーブ状のサイドフラップ44が形成される。サイドフラップ44には、縦方向Yへ延びるストランド状またはストリング状のサイド弾性体45がホットメルト接着剤等の公知の接合手段を介して伸長状態で収縮可能に取り付けられている。被覆シート43は、吸収体41の底面において図示しないホットメルト接着剤等の公知の接合手段によって互いに接合されているが、サイドフラップ44においては、その前後端部のみが図示しない接合手段によって身体側ライナ42に接合されているのであって、その縦方向Yの中央部分は身体側ライナ42から離間可能にされている。したがって、サイド弾性体45の収縮作用によって、サイドフラップ44が身体側ライナ42から離間してバリアまたはガスケットカフを形成し、排泄物の横漏れを防止することができる。吸液構造体40は、被覆シート43の外面が、ホットメルト接着剤(図示せず)を介してクロッチシート23に固定されている。 The liquid absorbent structure 40 includes an absorbent body 41 formed by covering a liquid absorbent core made of a mixture of fluff pulp and superabsorbent polymer particles with a liquid diffusible sheet (not shown), and an absorbent body 41. The body side liner 42 which covers the absorption surface, and the covering sheet 43 which covers both side edges from the bottom surface of the absorber 41 and is bent to the absorption surface. The cover sheet 43 is bent into the absorption surface to form a pair of sleeve-shaped side flaps 44. A strand-like or string-like side elastic body 45 extending in the longitudinal direction Y is attached to the side flap 44 so as to be shrinkable in a stretched state via a known joining means such as a hot melt adhesive. The covering sheets 43 are joined to each other on the bottom surface of the absorbent body 41 by a known joining means such as a hot melt adhesive (not shown). However, in the side flap 44, only the front and rear ends thereof are attached to the body side by the joining means (not shown). It is joined to the liner 42, and the central portion in the longitudinal direction Y is separable from the body side liner 42. Therefore, the side flap 44 is separated from the body side liner 42 by the contraction action of the side elastic body 45 to form a barrier or a gasket cuff, and the side leakage of excrement can be prevented. As for the liquid absorption structure 40, the outer surface of the coating sheet 43 is being fixed to the crotch sheet 23 via the hot-melt-adhesive (not shown).
 第1伸縮性シート31は、吸液構造体40の前端縁40aに重なるとともに、吸液構造体40と前ウエストシート21との間に配置され、横方向Xへ伸長状態で収縮可能に取り付けられている。前ウエストシート21は横方向Xへ延びる折曲線24に沿って縦方向Y内側へ折り畳まれ、折曲領域25が形成されている。折曲領域25は、吸液構造体40の前端縁40aを覆うように重なるとともに、第1伸縮性シート31にも重なっている。折曲線24がおむつ1の前端縁14を形成している。 The first stretchable sheet 31 overlaps with the front end edge 40a of the liquid absorbing structure 40, is disposed between the liquid absorbing structure 40 and the front waist sheet 21, and is attached so as to be contractible in an extended state in the lateral direction X. ing. The front waist sheet 21 is folded inward in the longitudinal direction Y along a folding line 24 extending in the lateral direction X, and a folding region 25 is formed. The bent region 25 overlaps the front end edge 40 a of the liquid absorbing structure 40 and also overlaps the first stretchable sheet 31. A folding line 24 forms the front edge 14 of the diaper 1.
 前ウエストシート21と折曲領域25との間には、前端縁14に沿って、ストランド状またはストリング状の複数本の前ウエスト弾性体61が、横方向Xへ伸長状態で収縮可能に取り付けられている。第1伸縮性シート31および前ウエスト弾性体61によって、前ウエスト域11が横方向Xへ弾性化され、着用者に密着可能とされている。特に、第1伸縮性シート31が着用者の腹部に対する密着性に関与し、前ウエスト弾性体61がウエスト開口からの漏れ防止に関与している。 Between the front waist sheet 21 and the bent region 25, a plurality of strand-like or string-like front waist elastic bodies 61 are attached along the front end edge 14 so as to be contractible in a stretched state in the lateral direction X. ing. The front waist region 11 is elasticized in the lateral direction X by the first elastic sheet 31 and the front waist elastic body 61 so as to be in close contact with the wearer. In particular, the first elastic sheet 31 is involved in adhesion to the wearer's abdomen, and the front waist elastic body 61 is involved in preventing leakage from the waist opening.
 第2伸縮性シート32は、吸液構造体40の後端縁40bを覆うように重なるとともに、吸液構造体40の肌対向面に配置され、横方向Xへ伸長状態で収縮可能に取り付けられている。後ウエストシート22は、横方向Xへ延びる折曲線26に沿って縦方向Y内側へ折り畳まれ、折曲領域27が形成されている。折曲領域27は、第2伸縮性シート32に重なるとともに、後述する防漏シート50の延出部51にも重なっている。折曲線26がおむつ1の後端縁15を形成している。 The second stretchable sheet 32 overlaps to cover the rear end edge 40b of the liquid absorbing structure 40, is disposed on the skin-facing surface of the liquid absorbing structure 40, and is attached so as to be contractible in the stretched state in the lateral direction X. ing. The rear waist sheet 22 is folded inward in the vertical direction Y along a folding line 26 extending in the lateral direction X, and a folding region 27 is formed. The bent region 27 overlaps the second stretchable sheet 32 and also overlaps an extension portion 51 of a leak-proof sheet 50 described later. A folding line 26 forms the rear edge 15 of the diaper 1.
 後ウエストシート22と折曲領域27との間には、後端縁15に沿って、ストランド状またはストリング状の複数本の後ウエスト弾性体62が、横方向Xへ伸長状態で収縮可能に取り付けられている。第2伸縮性シート32および後ウエスト弾性体62によって、後ウエスト域12が横方向Xへ弾性化され、着用者に密着可能とされている。特に、第2伸縮性シート32が着用者の腹部に対する密着性に関与し、後ウエスト弾性体62がウエスト開口からの漏れ防止に関与している。 Between the rear waist sheet 22 and the bent region 27, a plurality of strand-shaped or string-shaped rear waist elastic bodies 62 are attached along the rear end edge 15 so as to be contractible in an extended state in the lateral direction X. It has been. The rear waist region 12 is elasticized in the lateral direction X by the second elastic sheet 32 and the rear waist elastic body 62 so as to be in close contact with the wearer. In particular, the second elastic sheet 32 is involved in adhesion to the wearer's abdomen, and the rear waist elastic body 62 is involved in preventing leakage from the waist opening.
 前後ウエストシート21,22のレッグ開口を形成する領域には、前後レッグ弾性体63,64が伸長状態で収縮可能に取り付けられている。前後レッグ弾性体63,64は、質量が20~50g/m、好ましくは、30~40g/m、繊維密度が0.01~0.04g/cm、好ましくは0.025~0.035g/cmの範囲である熱融着性のエラストマー繊維からなる伸縮性繊維不織布から形成されていることが好ましい。具体的には、熱可塑性ポリウレタンポリマーと、熱可塑性ポリウレタンポリマー以外の熱可塑性ポリマー、例えば、スチレン系エラストマー、ポリオレフィン系エラストマー、塩ビ系エラストマー、アミド系エラストマー、ポリエチレン、ポリプロピレン、ポリスチレン等のポリオレフィン類のポリマーとの混合からなる繊維を含む混合繊維から形成することができる。さらに、このような伸縮性繊維不織布を延伸処理することによって、伸縮性を向上させることができる。延伸処理としては、伸縮性繊維不織布を一対のギア間に通過させることによって、さらに延伸される部分と延伸されない部分とを形成することによって実施することができる。前後レッグ弾性体63,64は、延伸処理を施すことによって、凹曲状にされたクロッチ域13における側縁16に沿って湾曲させることができる。すなわち、延伸処理によって伸縮性が向上されているので、湾曲した部分での内側と外側との円弧の差によってたわみが生じるのを防止することができる。したがって、前後レッグ弾性体63,64は、前後ウエストシート21,22から離間することなく、かつ、着用者の身体に密着することができる。 Front and rear leg elastic bodies 63 and 64 are attached to regions of the front and rear waist sheets 21 and 22 forming leg openings so as to be contracted in an extended state. The front and rear leg elastic bodies 63 and 64 have a mass of 20 to 50 g / m 2 , preferably 30 to 40 g / m 2 , and a fiber density of 0.01 to 0.04 g / cm 3 , preferably 0.025 to 0.00. It is preferably formed from a stretchable fiber nonwoven fabric made of heat-fusible elastomer fibers in the range of 035 g / cm 3 . Specifically, thermoplastic polyurethane polymers and thermoplastic polymers other than thermoplastic polyurethane polymers, for example, polymers of polyolefins such as styrene elastomers, polyolefin elastomers, vinyl chloride elastomers, amide elastomers, polyethylene, polypropylene, polystyrene, etc. It can form from the mixed fiber containing the fiber which consists of a mixture. Furthermore, stretchability can be improved by stretching such stretchable fiber nonwoven fabric. The stretching treatment can be carried out by allowing the stretchable fiber nonwoven fabric to pass between a pair of gears, thereby forming a stretched portion and a non-stretched portion. The front and rear leg elastic bodies 63 and 64 can be curved along the side edge 16 in the crotch region 13 which is formed into a concave curve by performing a stretching process. In other words, since the stretchability is improved by the stretching treatment, it is possible to prevent the occurrence of deflection due to the difference between the inner and outer arcs at the curved portion. Therefore, the front and rear leg elastic bodies 63 and 64 can be in close contact with the wearer's body without being separated from the front and rear waist sheets 21 and 22.
 クロッチシート23と前後ウエストシート21,22の間には、防漏シート50が配置されている。防漏シート50として、透湿性かつ不透液性のプラスチックフィルムまたはこのフィルムと繊維不織布とのラミネートを用いることができる。防漏シート50は、吸液構造体40に重なるように配置されるとともに、その縦方向Yにおける寸法は、吸液構造体40のそれよりも大きくされている。このような防漏シート50は、吸液構造体40の後端縁40bから縦方向Y外側に延出され、延出部51が形成されている。延出部51は、縦方向Yにおける長さ寸法が約10~40mm、望ましくは約15~30mmとされている。 A leakproof sheet 50 is disposed between the crotch sheet 23 and the front and rear waist sheets 21 and 22. As the leak-proof sheet 50, a moisture-permeable and liquid-impervious plastic film or a laminate of this film and a fiber nonwoven fabric can be used. The leak-proof sheet 50 is disposed so as to overlap the liquid absorbing structure 40, and the dimension in the longitudinal direction Y is larger than that of the liquid absorbing structure 40. Such a leak-proof sheet 50 extends from the rear end edge 40b of the liquid-absorbing structure 40 to the outside in the vertical direction Y, and an extension portion 51 is formed. The extension 51 has a length in the longitudinal direction Y of about 10 to 40 mm, preferably about 15 to 30 mm.
 図4を図3と併せて参照すると、後ウエストシート22の非肌対向面には、おむつ1の廃棄時に使用するテープ70が接合部71を介して取り付けられている。接合部71は、ホットメルト接着剤等の公知の接合手段によって形成される。テープ70は、接合部71によって取り付けられた固定部70aと、固定部70aに図示しない接着剤を介して接着されるとともに、これを介護者または着用者が手で挟持して引っ張ると固定部70aから離間可能な剥離部70bとを有している。テープ70は、おむつ1の使用後、これを廃棄する際に、おむつ1を丸めて固定するために用いられるもので、剥離部70bに残った接着剤によっておむつ1を丸めた状態に固定することができる。 Referring to FIG. 4 together with FIG. 3, a tape 70 used when the diaper 1 is discarded is attached to the non-skin facing surface of the rear waist sheet 22 via a joint 71. The joining portion 71 is formed by a known joining means such as a hot melt adhesive. The tape 70 is bonded to the fixing portion 70a attached by the joining portion 71 and an adhesive (not shown) to the fixing portion 70a. When the caregiver or the wearer holds and pulls the tape 70 with a hand, the fixing portion 70a is attached. And a separation portion 70b that can be separated from the substrate. The tape 70 is used for rounding and fixing the diaper 1 when the diaper 1 is discarded after use, and fixing the diaper 1 in a rounded state by the adhesive remaining on the peeling portion 70b. Can do.
 後ウエスト域12において、第2伸縮性シート32は、吸液構造体40の後端縁40bを覆うように重なるとともに、その一部が防漏シート50の延出部51を介して後ウエストシート22に重なり、図示しないホットメルト接着剤等の公知の手段によって互いに接合されている。このようなおむつ1において、着用時に引っ張り上げようとすると、後ウエスト域12の後端縁15近傍を挟持して図面右側、すなわち後端縁15側に引っ張ることになる。このときの引張力は、吸液構造体40の後端縁40cと第2伸縮性シート32との接合部分、第2伸縮性シート32と延出部51の接合部分、延出部51と後ウエストシート22との接合部分に分散される。したがって、引張力が集中することによるシートの破断を予防することができる。 In the rear waist region 12, the second stretchable sheet 32 overlaps so as to cover the rear end edge 40 b of the liquid absorbing structure 40, and a part of the second elastic sheet 32 passes through the extending portion 51 of the leak-proof sheet 50. 22 are joined to each other by a known means such as a hot melt adhesive (not shown). In such a diaper 1, if it is intended to be pulled up when worn, the vicinity of the rear edge 15 of the rear waist region 12 is sandwiched and pulled to the right side of the drawing, that is, the rear edge 15 side. The tensile force at this time is such that the rear end edge 40c of the liquid absorbing structure 40 and the second stretchable sheet 32 are joined, the joined portion between the second stretchable sheet 32 and the extended portion 51, the extended portion 51 and the rear portion. Dispersed in the joint portion with the waist sheet 22. Therefore, it is possible to prevent the sheet from being broken due to the concentration of the tensile force.
 着用者が乳幼児の場合には、おむつの着用を嫌がって逃げ回ることがある。特に這い這いをして逃げる乳幼児におむつ1をはかせようとすると、乳幼児の後から追いかけながらおむつ1をはかせることになるから、後ウエスト域12を挟持してより一層強く引っ張ることになる。したがって、シートの破断がより一層生じやすいが、この発明では、これを防止することができる。また、後ウエスト域12は、前ウエスト域11に比較して吸液構造体40が重なる領域が小さくされているから、挟持し易く引っ張り力も大きくなり、シートも破断し易くなるが、少なくとも、後ウエスト域12において、防漏シート50の延出部51が形成され、これに第2伸縮性シート32が重なるようにされているから、この破断を予防することができる。 If the wearer is an infant, he may hate wearing a diaper and run around. In particular, when trying to put the diaper 1 on an infant who crawls and runs away, the diaper 1 is put on the infant after chasing after the infant, so that the rear waist region 12 is sandwiched and pulled more strongly. Therefore, the sheet is more easily broken, but this can be prevented in the present invention. Further, since the rear waist region 12 has a smaller area where the liquid absorbing structure 40 overlaps compared to the front waist region 11, the rear waist region 12 is easily pinched and the tensile force is increased, and the sheet is also easily broken. Since the extension part 51 of the leak-proof sheet | seat 50 is formed in the waist area 12, and the 2nd elastic sheet 32 overlaps with this, this fracture | rupture can be prevented.
 防漏シート50の延出部51を介して後ウエストシート22と第2伸縮性シート32とが互いに接合されている。これらシート22,32は、互いに繊維不織布によって形成されるから接着面積が小さくなり、剥離しやすい。特に第2伸縮性シート32が弾性的に伸縮するのに対して、後ウエストシート22が伸縮しないから、これらの伸度が大きく異なり、これを挟持して引っ張ったときには、特に剥離し易くなる。このように第2伸縮性シート32と後ウエストシート22とが剥離すると、これらが接合されていた場合に比べて、強度が低下し破断し易くなる。しかし、この実施形態では、後ウエストシート22と第2伸縮性シート32は、プラスチックフィルム等で形成された防漏シート50に接合されるから、これらシートが直接接合された場合よりも強固に接合され、剥離しにくくすることができる。 The rear waist sheet 22 and the second stretchable sheet 32 are joined to each other via the extending portion 51 of the leak-proof sheet 50. Since these sheets 22 and 32 are formed of fiber nonwoven fabrics, the adhesive area is small and they are easy to peel off. In particular, the second elastic sheet 32 elastically expands and contracts, while the rear waist sheet 22 does not expand and contract. Therefore, these elongations differ greatly, and when they are held and pulled, they are particularly easily peeled off. Thus, when the 2nd elastic sheet 32 and the back waist sheet 22 peel, compared with the case where these are joined, intensity | strength falls and it becomes easy to fracture | rupture. However, in this embodiment, the rear waist sheet 22 and the second stretchable sheet 32 are joined to the leak-proof sheet 50 formed of a plastic film or the like, so that they are joined more firmly than when these sheets are joined directly. It can be made difficult to peel off.
 第2伸縮性シート32には、後ウエストシート22の折曲領域27が積層され、これらが図示しないホットメルト接着剤等の接合手段によって互いに接合されている。すなわち、第2伸縮性シート32はその肌対向面および非肌対向面を非伸縮性の後ウエストシート22によって挟まれる。したがって、折曲領域27を挟持して引っ張った際には、第2伸縮性シート32が弾性的に伸長することがなく、より一層これらシートの剥離を防止することができる。 The bent region 27 of the rear waist sheet 22 is laminated on the second stretchable sheet 32, and these are joined to each other by a joining means such as a hot melt adhesive (not shown). That is, the second stretchable sheet 32 is sandwiched between the skin facing surface and the non-skin facing surface by the non-stretchable rear waist sheet 22. Therefore, when the bent region 27 is sandwiched and pulled, the second stretchable sheet 32 is not elastically extended, and the separation of these sheets can be further prevented.
 後ウエストシート22には、テープ70が取り付けられている。テープ70を接合する接合部71は、防漏シート50の延出部51に重なるように位置している。後ウエスト域11を挟持して後端縁15側に引っ張ったときには、接合部71の端部にその引張力が集中するが、接合部71が延出部51に重なるように位置されていることによって、後ウエストシート22を破断しにくくすることができる。また、接合部71は吸液構造体40の後端縁40cよりも縦方向Y外側、すなわち後端縁15側に位置している。接合部71の端部が後端縁40cと一致する場合には、これら一致した部分に引張力が集中する可能性があるが、これを分散することによって、より一層、後ウエストシート22および第2伸縮性シート32の破断を予防することができる。 The tape 70 is attached to the rear waist sheet 22. The joining portion 71 that joins the tape 70 is positioned so as to overlap the extending portion 51 of the leak-proof sheet 50. When the rear waist region 11 is sandwiched and pulled toward the rear edge 15, the tensile force is concentrated on the end of the joint 71, but the joint 71 is positioned so as to overlap the extension 51. Thus, the rear waist sheet 22 can be made difficult to break. Further, the joint portion 71 is located on the outer side in the vertical direction Y from the rear end edge 40c of the liquid absorbing structure 40, that is, on the rear end edge 15 side. When the end portion of the joint portion 71 coincides with the rear end edge 40c, there is a possibility that the tensile force is concentrated on these coincident portions. 2 Breakage of the elastic sheet 32 can be prevented.
 第1および第2伸縮性シート31,32は、伸長状態で前後ウエスト域11,12に取り付けられるので、非伸縮性シートである前後ウエストシート21,22および防漏シート50にその伸縮性が阻害されることがない。また、前後ウエストシート21,22は、繊維不織布によって形成され、これら繊維の交絡が僅かに解けることによって、多少の伸長が可能である。これに対して防漏シート50はプラスチックフィルムを用いているので、若干の塑性変形することがある。しかし、いずれにしても、防漏シート50は、シャーシ10の横方向Xにおける寸法、すなわち、前後ウエストシート21,22の横方向Xにおける寸法よりも小さくされるとともに、仮想縦中心線P-Pに沿って中央部のみに配置されているので、第1および第2伸縮性シート31,32の弾性的な伸縮を阻害することはない。 Since the first and second stretchable sheets 31 and 32 are attached to the front and rear waist regions 11 and 12 in an extended state, the stretchability of the front and rear waistsheets 21 and 22 and the leak-proof sheet 50 that are non-stretchable sheets is hindered. It will not be done. Further, the front and rear waist sheets 21 and 22 are formed of a fiber nonwoven fabric, and can be somewhat expanded by slightly untangling these fibers. On the other hand, since the leak-proof sheet 50 uses a plastic film, it may be slightly plastically deformed. However, in any case, the leak-proof sheet 50 is made smaller than the dimension in the lateral direction X of the chassis 10, that is, the dimension in the lateral direction X of the front and rear waist sheets 21, 22, and the virtual longitudinal center line PP Therefore, the elastic expansion and contraction of the first and second elastic sheets 31 and 32 is not hindered.
 防漏シート50は、折曲線26から離間して配置されているが、これが折曲線26にまで延びるようにされていてもよい。この場合には、より広範囲において第2伸縮性シート32と後ウエストシート22とが、防漏シート50を介して接合されることとなるので、より広範囲でこれらシートの破断を防止することができる。また、後ウエスト域12は、繊維不織布によって形成され、防漏シート50はプラスチックフィルム等で形成されているところ、防漏シート50の破断強度の方が強くされているので、防漏シート50で形成された延出部51ではおむつ1が破断されにくい。 The leak-proof sheet 50 is disposed away from the folding line 26, but it may be extended to the folding line 26. In this case, since the second stretchable sheet 32 and the rear waist sheet 22 are joined via the leak-proof sheet 50 in a wider range, breakage of these sheets can be prevented in a wider range. . Moreover, since the rear waist region 12 is formed of a fiber nonwoven fabric and the leak-proof sheet 50 is formed of a plastic film or the like, the breaking strength of the leak-proof sheet 50 is increased. In the formed extension part 51, the diaper 1 is hard to be fractured.
 この実施形態において、第2伸縮性シート32と後ウエストシート22の折曲領域27とが互いに重なる位置関係とされているが、これに限ったものではなく、これらが縦方向Yにおいて離間し、互いに重ならないようにされていてもよい。その場合には、折曲領域27は、防漏シート50の延出部51に直接接合されることとなる。また、テープ70は必須の構成ではなく、これが取り付けられないものであってもよい。 In this embodiment, the second stretchable sheet 32 and the bent region 27 of the rear waistsheet 22 are in a positional relationship where they overlap each other, but this is not a limitation, and they are separated in the longitudinal direction Y, You may be made not to mutually overlap. In that case, the bent region 27 is directly joined to the extending portion 51 of the leak-proof sheet 50. Further, the tape 70 is not an essential configuration and may not be attached.
 延出部51の縦方向Yにおける寸法は、約10~40mmとしているが、10mmよりも小さいと、これを介して接合される第2伸縮性シート32と後ウエストシート22との面積が小さくなって、これらシートが剥離されやすくなる。寸法が40mmよりも大きいと、おむつ1の通気性が低下したり、ウエスト域が硬くなりその収縮を妨げたりする可能性がある。 The dimension in the longitudinal direction Y of the extending portion 51 is about 10 to 40 mm, but if it is smaller than 10 mm, the area of the second stretchable sheet 32 and the rear waist sheet 22 joined via this becomes small. Thus, these sheets are easily peeled off. If the dimension is larger than 40 mm, the air permeability of the diaper 1 may be lowered, or the waist region may be hardened and hinder its contraction.
 おむつ1を着用者に着用させる際、後ウエスト域12を挟持して引っ張ることが多いから、後ウエスト域12における破断を防止するために、後ウエスト域12において伸縮性シートを配置する場合について、この実施形態では説明した。しかし、同様の構成は前ウエスト域11に形成することができることはいうまでもない。 When the diaper 1 is worn by the wearer, the rear waist region 12 is often pinched and pulled. Therefore, in order to prevent breakage in the rear waist region 12, a stretchable sheet is disposed in the rear waist region 12, This embodiment has been described. However, it goes without saying that a similar configuration can be formed in the front waist region 11.
 第1および第2伸縮性シート31,32は、エラストマー繊維と非エラストマー繊維との混合繊維から形成してもよい。この混合繊維を用いると、エラストマー繊維による着用者の肌に対する摩擦を軽減することができる。換言すると、非エラストマー繊維を混合することによって、着用者の肌に対するすべりを向上させ、第1および第2伸縮性シート31,32の柔軟性および肌触りを向上させることができる。 The first and second stretchable sheets 31 and 32 may be formed from a mixed fiber of an elastomer fiber and a non-elastomeric fiber. When this mixed fiber is used, the friction with respect to a wearer's skin by an elastomer fiber can be reduced. In other words, by mixing non-elastomeric fibers, it is possible to improve the slip of the wearer against the skin, and to improve the flexibility and touch of the first and second stretchable sheets 31 and 32.
 以上に記載したこの発明に関する開示は、少なくとも下記事項に要約することができる。
 使い捨て着用物品1は、縦方向Yおよび横方向Xを有し、肌対向面およびその反対側である非肌対向面と、前後ウエスト域11,12のいずれか一方である第1ウエスト域と、前記前後ウエスト域11,12のいずれか他方である第2ウエスト域と、前記第1および第2ウエスト域間に位置するクロッチ域13とを有するシャーシ10と、前記クロッチ域13から少なくとも前記第2ウエスト域に延びる吸液構造体40とを含み、前記シャーシ10は、非伸縮性シート21,22,23と、前記非伸縮性シートに積層され前記横方向Xへ伸縮可能な伸縮性シート31,32とを有する。
The disclosure relating to the present invention described above can be summarized at least in the following matters.
The disposable wearing article 1 has a longitudinal direction Y and a lateral direction X, a skin facing surface and a non-skin facing surface that is the opposite side thereof, and a first waist region that is one of the front and rear waist regions 11 and 12; A chassis 10 having a second waist region, which is the other of the front and rear waist regions 11, 12, and a crotch region 13 positioned between the first and second waist regions; and at least the second from the crotch region 13 The chassis 10 includes non-stretchable sheets 21, 22, 23, and a stretchable sheet 31, which is stacked on the non-stretchable sheet and can be stretched in the lateral direction X. 32.
 この発明は、上記使い捨て着用物品1において、以下の点を特徴とする。
 前記吸液構造体40は、前記横方向Xへ延びる第1および第2端縁40a,40bを有するとともに、前記吸液構造体40と前記シャーシ10との間には、防漏シート50が配置され、前記防漏シート50が前記吸液構造体40の第2端縁40bから前記縦方向Y外側へと延出された延出部51を有している。
 前記非伸縮性シート21,22,23および前記伸縮性シート31,32は、少なくとも前記第2ウエスト域に位置されるとともに、前記伸縮性シート31,32は、前記非伸縮性シート21,22,23と、前記吸液構造体40の第2端縁40bと、前記延出部51とに重なって配置され、前記伸縮性シート31,32と前記非伸縮性シート21,22,23とは、少なくともその一部において、前記防漏シート50を介して互いに接合される。
This invention is characterized by the following points in the disposable wearing article 1.
The liquid absorbing structure 40 has first and second end edges 40 a and 40 b extending in the lateral direction X, and a leak-proof sheet 50 is disposed between the liquid absorbing structure 40 and the chassis 10. The leak-proof sheet 50 has an extending portion 51 that extends from the second end edge 40b of the liquid absorbing structure 40 to the outside in the longitudinal direction Y.
The non-stretchable sheets 21, 22, 23 and the stretchable sheets 31, 32 are positioned at least in the second waist region, and the stretchable sheets 31, 32 are the non-stretchable sheets 21, 22. 23, the second end edge 40b of the liquid-absorbing structure 40, and the extending portion 51, and the stretchable sheets 31, 32 and the non-stretchable sheets 21, 22, 23 are At least a part thereof is joined to each other via the leak-proof sheet 50.
 上記の発明は、少なくとも下記の実施の形態を含むことができる。
(1)前記吸液構造体40は、前記クロッチ域13から前記第1および第2ウエスト域に延在し、前記第2ウエスト域に重なった前記吸液構造体40の前記縦方向Yにおける寸法は、前記第1ウエスト域に重なった前記吸液構造体40の前記縦方向Yにおける寸法よりも大きくされる。
(2)前記シャーシ10の前記非肌対向面には、接合部71を介して廃棄用のテープ70が取り付けられ、前記接合部71は、前記防漏シート50の前記延出部51に重なって形成される。
(3)前記非伸縮性シート21,22は、前記横方向Xへ延びる折曲線24,26によって前記縦方向Y内側に折り曲げられた折曲領域25,27を有し、前記折曲領域25,27が、前記防漏シート50の前記延出部51に重ねられる。
(4)前記非伸縮性シート21,22の前記折曲領域25,27は、前記吸液構造体40の端縁を覆う。
(5)前記伸縮性シートは、前記第1ウエスト域に位置する第1伸縮性シート31と、前記第2ウエスト域に位置する第2伸縮性シート32とを含む。
(6)前記防漏シート50の前記横方向Xにおける寸法は、前記第2ウエスト域の前記横方向Xにおける寸法よりも小さくされる。
(7)前記第1ウエスト域は前記前ウエスト域11であり、前記第2ウエスト域は前記後ウエスト域12である。
(8)前記第1および第2ウエスト域は、少なくとも繊維不織布から形成され、かつ、前記防漏シート50は、少なくともプラスチックフィルム、および、プラスチックフィルムと繊維不織布とのラミネートのひとつから形成されている。
The above invention can include at least the following embodiments.
(1) The liquid absorption structure 40 extends from the crotch region 13 to the first and second waist regions, and the dimension in the longitudinal direction Y of the liquid absorption structure 40 that overlaps the second waist region. Is made larger than the dimension in the longitudinal direction Y of the liquid absorption structure 40 overlapping the first waist region.
(2) The disposal tape 70 is attached to the non-skin facing surface of the chassis 10 via a joint portion 71, and the joint portion 71 overlaps the extension portion 51 of the leak-proof sheet 50. It is formed.
(3) The non-stretchable sheets 21 and 22 have folding regions 25 and 27 that are bent inward in the longitudinal direction Y by folding lines 24 and 26 extending in the transverse direction X. 27 is superposed on the extending portion 51 of the leak-proof sheet 50.
(4) The bent regions 25 and 27 of the non-stretchable sheets 21 and 22 cover the edge of the liquid absorbing structure 40.
(5) The stretchable sheet includes a first stretchable sheet 31 located in the first waist region and a second stretchable sheet 32 located in the second waist region.
(6) The dimension in the said horizontal direction X of the said leak-proof sheet 50 is made smaller than the dimension in the said horizontal direction X of a said 2nd waist area.
(7) The first waist region is the front waist region 11, and the second waist region is the rear waist region 12.
(8) The first and second waist regions are formed of at least a fiber nonwoven fabric, and the leak-proof sheet 50 is formed of at least one of a plastic film and a laminate of the plastic film and the fiber nonwoven fabric. .
 使い捨て着用物品1を構成する各構成部材には、この発明の明細書に開示されている材料のほかに、この種の分野において通常用いられている、各種の公知の材料を制限なく用いることができる。また、使い捨て着用物品1は、前ウエスト域11と、後ウエスト域12と、クロッチ域13とが一連に形成された態様であってもよい。 In addition to the materials disclosed in the specification of the present invention, various known materials that are normally used in this type of field can be used without limitation for each constituent member constituting the disposable wearing article 1. it can. Moreover, the aspect in which the front waist region 11, the back waist region 12, and the crotch region 13 were formed in series may be sufficient as the disposable wearing article 1.
 この発明の明細書および特許請求の範囲において、用語「第1」および「第2」は、同称の要素、位置等を単に区別するために用いられている。さらに、この発明の明細書および特許請求の範囲において、用語「第1ウエスト域」は、前後ウエスト域の一方を意味し、「第2ウエスト域」はその他方を意味する。 In the specification and claims of the present invention, the terms “first” and “second” are used to simply distinguish elements, positions, etc. of the same name. Further, in the specification and claims of the present invention, the term “first waist region” means one of the front and rear waist regions, and the “second waist region” means the other.
 1  おむつ(使い捨て着用物品)
10  シャーシ
11  前ウエスト域(第1又は第2ウエスト域)
12  後ウエスト域(第1又は第2ウエスト域)
13  クロッチ域
21  前ウエストシート(非伸縮性シート)
22  後ウエストシート(非伸縮性シート)
23  クロッチシート(非伸縮性シート)
24  折曲線
25  折曲領域
26  折曲線
27  折曲領域
31  第1伸縮性シート
32  第2伸縮性シート
40  吸液構造体
40a 前端縁(第1または第2端縁)
40b 後端縁(第1または第2端縁)
50  防漏シート
51  延出部
70  テープ
71  接合部
1 Diaper (disposable wearing article)
10 Chassis 11 Front waist area (first or second waist area)
12 Rear waist area (first or second waist area)
13 Crotch area 21 Front waist sheet (non-elastic sheet)
22 Rear waist sheet (non-elastic sheet)
23 Crotch sheet (non-elastic sheet)
24 Folding Curve 25 Bending Area 26 Bending Curve 27 Bending Area 31 First Stretchable Sheet 32 Second Stretchable Sheet 40 Liquid Absorbing Structure 40a Front Edge (First or Second Edge)
40b Rear edge (first or second edge)
50 Leak-proof sheet 51 Extension part 70 Tape 71 Joint part

Claims (9)

  1.  縦方向および横方向を有し、肌対向面およびその反対側である非肌対向面と、前後ウエスト域の一方である第1ウエスト域と、前記前後ウエスト域の他方である第2ウエスト域と、前記第1および第2ウエスト域間に位置するクロッチ域とを有するシャーシと、前記クロッチ域から少なくとも前記第2ウエスト域に延びる吸液構造体とを含み、前記シャーシは、非伸縮性シートと、前記非伸縮性シートに積層され前記横方向へ伸縮可能な伸縮性シートとを有する使い捨て着用物品において、
     前記吸液構造体は、前記横方向へ延びる第1および第2端縁を有するとともに、前記吸液構造体と前記シャーシとの間には、防漏シートが配置され、前記防漏シートが前記吸液構造体の第2端縁から前記縦方向外側へと延出された延出部を有し、
     前記非伸縮性シートおよび前記伸縮性シートは、少なくとも前記第2ウエスト域に位置するとともに、前記伸縮性シートは、前記非伸縮性シートと、前記吸液構造体の第2端縁と、前記延出部とに重なって配置され、前記伸縮性シートと前記非伸縮性シートとは、少なくともその一部において、前記防漏シートを介して互いに接合されることを特徴とする前記使い捨て着用物品。
    A skin-facing surface and a non-skin-facing surface that is opposite to the skin; a first waist region that is one of the front and rear waist regions; and a second waist region that is the other of the front and rear waist regions. A chassis having a crotch region positioned between the first and second waist regions, and a liquid absorbing structure extending from the crotch region to at least the second waist region, the chassis comprising a non-stretchable sheet; In the disposable wearing article having a stretchable sheet laminated on the non-stretchable sheet and stretchable in the lateral direction,
    The liquid absorbing structure has first and second edges extending in the lateral direction, and a leakproof sheet is disposed between the liquid absorbing structure and the chassis, and the leakproof sheet is An extending portion extending from the second end edge of the liquid-absorbing structure to the outside in the longitudinal direction;
    The non-stretchable sheet and the stretchable sheet are positioned at least in the second waist region, and the stretchable sheet comprises the non-stretchable sheet, the second edge of the liquid absorbing structure, and the extension. The disposable wearing article, wherein the disposable wearing article is disposed so as to overlap with a protruding portion, and the stretchable sheet and the non-stretchable sheet are joined to each other via the leakproof sheet at least in part.
  2.  前記吸液構造体は、前記クロッチ域から前記第1および第2ウエスト域に延在し、前記第2ウエスト域に重なった前記吸液構造体の前記縦方向における寸法は、前記第1ウエスト域に重なった前記吸液構造体の前記縦方向における寸法よりも大きくされる請求項1記載の使い捨て着用物品。 The liquid absorbing structure extends from the crotch region to the first and second waist regions, and the dimension in the longitudinal direction of the liquid absorbing structure that overlaps the second waist region is the first waist region. The disposable wearing article according to claim 1, wherein the size is larger than a dimension in the longitudinal direction of the liquid-absorbing structure that overlaps with the liquid-absorbing structure.
  3.  前記シャーシの前記非肌対向面には、接合部を介して廃棄用のテープが取り付けられ、前記接合部は、前記防漏シートの前記延出部に重なって形成される請求項1または2記載の使い捨て着用物品。 The disposal tape is attached to the non-skin facing surface of the chassis via a joint portion, and the joint portion is formed to overlap the extension portion of the leak-proof sheet. Disposable wearing articles.
  4.  前記非伸縮性シートは、前記横方向へ延びる折曲線によって前記縦方向内側に折り曲げられた折曲領域を有し、前記折曲領域が、前記防漏シートの前記延出部に重ねられる請求項1~3のいずれかに記載の使い捨て着用物品。 The non-stretchable sheet has a folding region that is folded inward in the longitudinal direction by a folding line extending in the lateral direction, and the folding region is overlapped with the extension portion of the leak-proof sheet. The disposable wearing article according to any one of 1 to 3.
  5.  前記非伸縮性シートの前記折曲領域は、前記吸液構造体の端縁を覆う請求項4記載の使い捨て着用物品。 The disposable wearing article according to claim 4, wherein the bent region of the non-stretchable sheet covers an edge of the liquid absorbing structure.
  6.  前記伸縮性シートは、前記第1ウエスト域に位置する第1伸縮性シートと、前記第2ウエスト域に位置する第2伸縮性シートとを含む請求項1~5のいずれかに記載の使い捨て着用物品。 The disposable wear according to any one of claims 1 to 5, wherein the stretchable sheet includes a first stretchable sheet located in the first waist region and a second stretchable sheet located in the second waist region. Goods.
  7.  前記防漏シートの前記横方向における寸法は、前記第2ウエスト域の前記横方向における寸法よりも小さくされる請求項1~6のいずれかに記載の使い捨て着用物品。 The disposable wearing article according to any one of claims 1 to 6, wherein a dimension of the leak-proof sheet in the lateral direction is smaller than a dimension of the second waist region in the lateral direction.
  8.  前記第1ウエスト域は前記前ウエスト域であり、前記第2ウエスト域は前記後ウエスト域である請求項1~7のいずれかに記載の使い捨て着用物品。 The disposable wearing article according to any one of claims 1 to 7, wherein the first waist region is the front waist region, and the second waist region is the rear waist region.
  9.  前記第1および第2ウエスト域は、少なくとも繊維不織布から形成され、かつ、前記防漏シートは、少なくともプラスチックフィルム、および、プラスチックフィルムと繊維不織布とのラミネートのひとつから形成されている請求項1~8のいずれかに記載の使い捨て着用物品。 The first and second waist regions are formed of at least a fiber nonwoven fabric, and the leakproof sheet is formed of at least one of a plastic film and a laminate of the plastic film and the fiber nonwoven fabric. The disposable wearing article according to any one of 8.
PCT/JP2012/071002 2011-09-28 2012-08-20 Disposable wearable article WO2013047004A1 (en)

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JP2011213421A JP5892758B2 (en) 2011-09-28 2011-09-28 Disposable wearing items

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JP6168855B2 (en) * 2013-06-03 2017-07-26 ユニ・チャーム株式会社 Disposable wearing items
JP6243196B2 (en) * 2013-11-09 2017-12-06 ユニ・チャーム株式会社 Pants-type disposable absorbent article
JP5602971B1 (en) * 2014-04-15 2014-10-08 ユニ・チャーム株式会社 Pants-type wearing items

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JPH114853A (en) * 1997-04-21 1999-01-12 Kao Corp Disposable wearing article
JP2000342621A (en) * 1999-06-02 2000-12-12 Oji Paper Co Ltd Disposable diaper
JP2001046436A (en) * 1999-05-31 2001-02-20 Oji Paper Co Ltd Pants type disposable diaper
JP2011156341A (en) * 2010-01-08 2011-08-18 Unicharm Corp Disposable wearing article

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JPH07163618A (en) * 1993-12-10 1995-06-27 New Oji Paper Co Ltd Three-dimensional pants type disposable diaper
JPH114853A (en) * 1997-04-21 1999-01-12 Kao Corp Disposable wearing article
JP2001046436A (en) * 1999-05-31 2001-02-20 Oji Paper Co Ltd Pants type disposable diaper
JP2000342621A (en) * 1999-06-02 2000-12-12 Oji Paper Co Ltd Disposable diaper
JP2011156341A (en) * 2010-01-08 2011-08-18 Unicharm Corp Disposable wearing article

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