JP5892758B2 - Disposable wearing items - Google Patents

Description

  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.

  Conventionally, the disposable diaper which used the elastic sheet for the front-and-rear waist region and made the front-and-rear waist region elastic in the horizontal direction is 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.

JP 10-99373 A (JP 10-99373 A)

  In Patent Document 1 as described above, an 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. .

  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.

  The present invention has a longitudinal direction and a lateral direction, and has either 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 back waist regions, and any of the front and back waist regions A chassis having a second waist region that is the other, 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 chassis is related to improvement of a disposable wearing article having a non-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 And the non-stretchable sheet, at least in part, are joined to each other via the leak-proof sheet, and a non-skin facing surface of the chassis is attached with a disposal tape via a joint, The joint is the liquid absorbing structure. Extending from the portion of the body that overlaps the absorber to the end extending from the second end edge of the liquid absorbing structure to the outside in the vertical direction, and the liquid absorbing structure at the joint An end portion extending from the second end edge to the outside in the longitudinal direction overlaps with the extending portion of the leak-proof sheet .

  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.

The perspective view of the diaper as an example of the disposable wearing article which concerns on this invention. A partially broken development view of a diaper. The exploded perspective view of a diaper. The IV-IV line schematic cross section of FIG.

With reference to FIGS. 1 to 3, the diaper 1 has a skin facing surface of the wearer and a non-skin facing surface that is the opposite side thereof, and forms a contour of the diaper 1, and the skin facing surface of the chassis 10. The liquid-absorbing structure 40 and the leak-proof sheet 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 obtained by dividing the length dimension in the horizontal direction X into two equal parts, and a virtual horizontal center line QQ obtained by dividing the length dimension in the horizontal direction Y into two parts. The line PP is substantially symmetric.

  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.

As the front and rear waist sheets 21 and 22 and the crotch sheet 23, for example, the mass is about 10 to 40 g / m ² , preferably about 13 to 20 g / m ² , and the fiber density is 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 and 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 nonwoven fabric made of heat-fusible elastomeric fibers, preferably 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.

The liquid absorbing 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 absorption structure 40 overlapping the front waist region 11 is made larger than the dimension in the vertical direction Y of the liquid absorption structure 40 overlapping the rear waist region 12. That is, the liquid absorption structure 40 is unevenly distributed on the front waist region 11 side with respect to the rear waist region 12 . 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, 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).

  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.

  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.

  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.

  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.

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. 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.

  A leak-proof 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, and preferably about 15 to 30 mm.

  Referring to FIG. 4 together with FIG. 3, a tape 70 used at the time of disposal of the diaper 1 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.

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 40b of the liquid absorbing structure 40 and the second stretchable sheet 32, the joint portion of the second stretchable sheet 32 and the extended portion 51, and 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.

  If the wearer is an infant, he may dislike wearing a diaper and run around. In particular, when trying to put the diaper 1 on an infant who crawls and escapes, 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.

  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.

  On the second stretchable sheet 32, a bent region 27 of the rear waist sheet 22 is laminated, 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.

A 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 longitudinal direction Y from the rear end edge 40b 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 40b , there is a possibility that the tensile force concentrates on these coincident portions. 2 Breakage of the elastic sheet 32 can be prevented.

  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.

  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.

  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.

  Although the dimension in the vertical direction Y of the extending part 51 is about 10 to 40 mm, if it is smaller than 10 mm, the area of the second elastic 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.

  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 case where an elastic sheet is arranged 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.

  The first and second stretchable sheets 31 and 32 may be formed from a mixed fiber of elastomer fibers and non-elastomeric fibers. 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.

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.

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, and a disposal tape 70 is attached to the non-skin facing surface of the chassis 10 via the joining portion 71. Extends from the portion of the liquid absorbing structure 40 that overlaps the absorber 41 to the end of the liquid absorbing structure 40 that extends from the second end edge 40B to the outside in the longitudinal direction y, and the joint 71 Before End from said second end edge 40B of the liquid-absorbent structure 40 is extended to the longitudinal direction Y outside overlaps the extending portion 51 of the barrier sheet 50.

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 first waist region. Is made larger than the dimension in the longitudinal direction Y of the liquid absorption structure 40 overlapping the second waist region .
( 2 ) 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.
( 3 ) The bent regions 25, 27 of the non-stretchable sheets 21, 22 cover the edge of the liquid absorbing structure 40.
( 4 ) 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.
( 5 ) 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.
( 6 ) The first waist region is the front waist region 11, and the second waist region is the rear waist region 12.
( 7 ) 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. .

  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.

  In the specification and claims of this invention, the terms “first” and “second” are used merely to 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 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 (8)

It has a longitudinal direction and a lateral direction, and is a skin facing surface and a non-skin facing surface that is the opposite side, a first waist region that is one of the front and back waist regions, and a first that is the other of the front and back 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. In 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 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 stretch sheet and the non-stretch sheet are joined to each other via the leak-proof sheet, at least part of the stretch sheet and the non-stretch sheet .
A disposal tape is attached to the non-skin facing surface of the chassis via a joint,
The joint extends from a portion overlapping the absorber of the liquid absorption structure to an end extending from the second edge of the liquid absorption structure to the outside in the vertical direction,
The disposable wearing article , wherein an end portion extending from the second end edge of the liquid-absorbing structure at the joining portion to the outside in the longitudinal direction overlaps the extending portion of the leak-proof sheet . The liquid absorption structure extends from the crotch region to the first and second waist regions, and the dimension in the longitudinal direction of the liquid absorption structure that overlaps the first waist region is the second 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 overlapped with the liquid-absorbing structure. 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 1 or 2 . The disposable wearing article according to claim 3 , wherein the bent region of the non-stretchable sheet covers an edge of the liquid absorbing structure. The disposable wear according to any one of claims 1 to 4 , 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. The disposable wearing article according to any one of claims 1 to 5 , wherein a dimension of the leak-proof sheet in the lateral direction is made smaller than a dimension of the second waist region in the lateral direction. The disposable wearing article according to any one of claims 1 to 6 , wherein the first waist region is the front waist region, and the second waist region is the rear waist region. The first and second waist regions are formed from at least a fiber nonwoven fabric, and the leak-proof sheet is formed from 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 7 .

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