WO2011024542A1

WO2011024542A1 - Wearing article

Info

Publication number: WO2011024542A1
Application number: PCT/JP2010/060419
Authority: WO
Inventors: 夕貴橋野; 俊介正木; 稔泰吉岡; 芳夫小野
Original assignee: ユニ・チャーム株式会社
Priority date: 2009-08-31
Filing date: 2010-06-21
Publication date: 2011-03-03
Also published as: CN101785729A; JP5483682B2; CN101785729B; EA024531B1; TWI572340B; EA201290064A1; MY159082A; AR078103A1; AU2010287902B2; AU2010287902A1; TW201108999A; JP2011050501A; BR112012004209A2; BR112012004209B1

Abstract

A wearing article configured in such a manner that a liquid absorbing structure, such as an absorbing body, does not separate in the front and rear waist regions from the wearer's body and, as a result, urine, etc. are prevented from leaking due to the formation of a gap between the wearer and the liquid absorbing structure. A diaper (10) includes a front waist member (20), a rear waist member (30), and a crotch member (40). The outer surface of a liquid absorbing structure (41) of the crotch member (40) is covered with an outer covering sheet (44), and gasket cuffs (50) and leakage barrier cuffs (60) are formed by the outer covering sheet (44). Imaginary folding lines (65) extending in the longitudinal direction (Y) are each formed between the proximal edge (62) and the distal edge (63) of a leakage barrier cuff (60), and the leakage barrier cuff (60) is folded along the imaginary folding line (65) while a barrier elastic member (64) is not being stretched or contracted. The leakage barrier cuffs (60) are joined at the front and rear portions (45, 46) of the liquid absorbing structure (41) to an inner covering sheet through a joining means, such as an adhesive agent, and this forms front and rear joined regions (66, 67) extending in the longitudinal direction (Y).

Description

Wearing article

The present invention relates to a worn article, and more particularly to a disposable diaper, excretion training pants, an incontinence brief, and the like.

Conventionally, disposable diapers having a liquid-absorbing structure having liquid-holding properties and a leak-proof cuff that prevents urine leakage and the like are known. For example, according to Patent Document 1, the diaper has a front and rear waist region and a crotch region, and a leakage prevention cuff is attached to the body side of the liquid absorption structure. The leakage prevention cuff is folded back outward at the free end located inward in the horizontal direction, and both end portions are fixed to the liquid absorbing structure side so that the folded state is maintained at both end portions spaced apart in the vertical direction. Yes. An elastic member is attached to the free end of the leak-proof cuff, and the cuff is separated so as to stand on the body side between the fixed end portions. Such a leakage prevention cuff prevents excrement such as urine from leaking from the inside of the diaper.

JP 2001-137282 A (JP 2001-137282 A)

The leak-proof cuff is formed by extending from the crotch area to the front and rear waist area in the vertical direction, and the free end is fixed to the liquid absorption structure side at both ends, so it is fixed not only in the crotch area but also in the front and back waist area The free ends other than the both end portions raised stand up to the body side. Therefore, the liquid absorbing structure and the wearer's body are also separated from each other in the front and rear waist regions, and a gap is formed between the liquid absorbing structure and the body. When a gap is formed in this way, excreted urine or the like may move through the gap and leak from the diaper.

This invention can prevent leakage of urine or the like due to the formation of a gap between the wearer and the liquid absorbing structure without the liquid absorbing structure such as the absorber being separated from the wearer's body in the front and rear waist regions. It is an object to provide a worn article.

The present invention includes a chassis including a longitudinal direction and a lateral direction, a body side and the opposite side, a front waist region, a rear waist region, and a crotch region located between the front and rear waist regions, and the front and rear waist regions from the crotch region. And a pair of leakage barrier cuffs positioned on the body side of the chassis, and a pair of gasket cuffs positioned on the laterally outer side of the liquid absorption structure.

The present invention provides the wearing article, wherein the liquid absorption structure includes front and rear portions that are separated in the longitudinal direction and an intermediate portion that is positioned between the front and rear portions, and the leak barrier cuff is joined to the chassis. A proximal edge that is elastically stretchable in the longitudinal direction and is separable from the chassis to the body side, and is located between the proximal edge and the distal edge and the longitudinal direction A front-rear joining region that extends in the longitudinal direction by being joined to the liquid absorbing structure at a position overlapping the front-rear part. Is formed.

As one of preferred embodiments of the present invention, the leak barrier cuff is elasticized by a plurality of elastic members extending in the longitudinal direction, and at least one of the elastic members includes the proximal edge and the virtual folding line. Arranged between.

As another preferred embodiment, the front joint region has a length dimension of 45 to 70% of the longitudinal length dimension of the front waist region, and the rear joint region is the rear waist region. 30 to 50% of the length in the longitudinal direction.

As another preferred embodiment, the longitudinal length of the front joining region is larger than that of the rear joining region.

As another preferred embodiment, the gasket cuff includes an inner edge located on the inner side in the lateral direction and an outer edge located on the outer side and elasticized so as to be stretchable in the longitudinal direction, and the leak barrier cuff The extension stress of the distal edge of the gasket cuff is made larger than the extension stress of the outer edge of the gasket cuff.

As another preferred embodiment, the liquid-absorbing structure includes a liquid-absorbing core material, and the liquid-absorbent core material has a length dimension in the lateral direction of the central portion that is the height of the front and rear portions. The proximal edge of the leakage barrier cuff is joined to the chassis without overlapping the liquid-absorbent core material at the central portion.

As another preferred embodiment, the front / rear waist region is elasticized by a plurality of elastic members extending in the lateral direction, and at least a part of the elastic member overlaps the front / rear joining region.

As another preferred embodiment, the length dimension from the proximal edge to the distal edge of the leak barrier cuff is longer than the length dimension from the inner edge to the outer edge of the gasket cuff. The

As another preferred embodiment, in the chassis, the longitudinal length dimension of the rear waist region is larger than that of the front waist region, and on the crotch region side of the rear waist region, The gasket cuff includes a lower end region extending from a front waist region, and the gasket cuff is elasticized by a plurality of elastic members extending in the longitudinal direction, and the elastic member of the gasket cuff is at least a part of the elastic member of the lower end region It is attached to overlap.

In the wearing article according to the present invention, the leakage barrier cuff is bent along a virtual folding line, and the distal edge is overlapped with the front and rear portions of the liquid absorption structure, and is joined to the liquid absorption structure by the front and rear joining regions. Yes. Therefore, the front and rear liquid absorption structure is not separated from the wearer's body in the front and rear waist region, and leakage of urine and the like due to the formation of a gap between the wearer and the liquid absorption structure can be prevented.

The perspective view of the disposable diaper shown as an example of a wearing article. The expansion | deployment top view seen from the body side of a diaper. FIG. 3 is a sectional view taken along line III-III in FIG. 2. FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. FIG. 3 is an exploded view of FIG. 2. A plan view of a diaper.

1 to 6 show an embodiment of the present invention, and will be described by taking a disposable diaper as an example of a worn article.

FIG. 1 is a perspective view of a state in which a waist opening and a leg opening of a diaper 10 are maintained in an annular shape, and FIG. 2 is a developed plan view of the diaper 10 viewed from the body side. FIG. 3 shows a state in which the diaper 10 is stretched against the contraction force and kept flat, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a line IV-IV of FIG. FIG. 5 is an exploded view of FIG. 2 and FIG. 6 is a plan view of the diaper 10 in a state in which the annular shape of the waist opening and the leg opening is collapsed and closed. 3 and 4, the right side of the figure from the virtual vertical center line PP represents a state in which each elastic body is contracted.

The diaper 10 includes a longitudinal direction Y and a lateral direction X, a clothing side that is the body side and the opposite side thereof, a crotch region 13 that is located between the front waist region 11, the rear waist region 12, and the front and

rear waist regions

11, 12. including. The diaper 10 includes 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 vertical direction Y. It is formed substantially symmetrical with respect to the center line PP.

The diaper 10 includes a front waist member 20 that forms the front waist region 11, a rear waist member 30 that forms the rear waist region 12, a crotch member 40 that forms the crotch region 13 and extends to the front and

rear waist regions

11 and 12. including. The front and

rear waist members

20 and 30 and a part of the crotch member 40 form a chassis of the present invention.

The front waist member 20 includes a front inner surface sheet 21 positioned on the body side, a front outer surface sheet 22 positioned on the clothing side, and a front elastic member 23 attached between the

sheets

21 and 22. The rear waist member 30 includes a rear inner sheet 31 positioned on the body side, a rear outer sheet 32 positioned on the clothing side, and a rear elastic member 33 attached between the

sheets

31 and 32. The front and rear

elastic members

23 and 33 extend in the horizontal direction X and are attached so as to be contractible in an extended state, and elasticize the front and

rear waist regions

11 and 12 in the horizontal direction X. The front and rear

elastic members

23 and 33 are attached with a given distance in the longitudinal direction Y.

The rear waist member 30 has a length dimension in the longitudinal direction Y larger than that of the front waist member 20, and the front waist member 30 is located on the crotch region 13 side in the longitudinal direction Y of the rear waist member 30, that is, on the imaginary lateral center line QQ side. A lower end region 30a extending from the crotch region 13 side of the member 20 is formed. In the lower end region 30a, the separation dimension of the rear elastic member 33 is made larger than that of other regions. Thus, by increasing the separation dimension, it is possible to maintain a soft texture without increasing the rigidity of the rear inner and

outer surface sheets

31 and 32. In addition, the rear elastic member 33 attached to the lower end region 30a can press the lower end region 30a against the wearer's skin, and can be prevented from being folded or turned up due to irritability.

The front and

rear waist members

20 and 30 as described above are joined to each other at both

side edges

24 and 34 to form an annular waist opening.
As shown in FIG. 2, the front and

rear waist members

20, 30 have

outer end edges

26, 36 positioned outside in the longitudinal direction Y folded back toward the virtual lateral center line QQ, respectively. , 35 are formed. The front and

rear sleeve portions

25 and 35 cover the end portion of the crotch member 40. The crotch member 40 is joined to the front and rear

inner sheets

21 and 31 on the clothing side in the front and

rear waist regions

11 and 12.

The crotch member 40 includes a liquid absorption structure 41, an interior sheet 42 that covers the inner surface of the liquid absorption structure 41 and is positioned on the body side, a leakage prevention sheet 43 that covers the outer surface of the liquid absorption structure 41, and a leakage prevention sheet 43. And an exterior sheet 44 positioned on the clothing side. The liquid absorbent structure 41 includes a liquid absorbent core material covered with a liquid diffusive sheet such as tissue paper, and as the liquid absorbent core material, fluff pulp, highly absorbent polymer particles, or the like can be used. In such a liquid absorbing structure 41, the length dimension in the lateral direction X becomes smaller toward the virtual lateral center line QQ, forming an hourglass shape as a whole. That is, the liquid absorption structure 41 includes front and

rear portions

45 and 46 positioned outside the vertical direction Y, and an intermediate portion 47 positioned between the front and

rear portions

45 and 46, and the length of the intermediate portion 47 in the lateral direction X is The size is made smaller than that of the front and

rear portions

45 and 46.

The length of the liquid absorption structure 41 in the longitudinal direction Y is about 300 to 400 mm, preferably about 335 to 380 mm. The interior sheet 42 and the leakage prevention sheet 43 are larger than the longitudinal dimension of the liquid absorbing structure 41 in the longitudinal direction Y, and the dimension is about 350 to 450 mm, preferably about 375 to 430 mm. The front and rear end portions of the crotch member 40 in the longitudinal direction Y do not have the liquid absorbing structure 41, that is, the front and

rear flap portions

48 and 49 formed only by the interior sheet 42 and the leakage prevention sheet 43 are formed. In these front and

rear flap portions

48 and 49, the interior sheet 42 and the leakage prevention sheet 43 are joined to each other by an adhesive means such as a hot melt adhesive.

As the interior sheet 42, a liquid-permeable fiber nonwoven fabric or the like can be used. As the interior sheet 42, for example, an air-through fiber nonwoven fabric, a point bond fiber nonwoven fabric, a spunbond fiber nonwoven fabric or the like having a mass per unit area of about 10 to 25 g / m ² can be used.

A moisture-permeable and liquid-impervious plastic film can be used as the leak-proof sheet 43, and at least the entire liquid-absorbing structure 41 is covered with the sheet 43 so that body fluid such as urine does not leak out of the diaper 10. ing.

The exterior sheet 44 may be a moisture permeable and liquid impermeable fiber nonwoven fabric or the like. As the exterior sheet 44, for example, a spunbond / meltblown / spunbond (SMS) fiber nonwoven fabric, a point bond fiber nonwoven fabric, a spunbond fiber nonwoven fabric or the like having a mass per unit area of about 10 to 25 g / m ² can be used. .

The gasket cuff 50 and the leakage barrier cuff 60 are formed by the exterior sheet 44. The gasket cuff 50 is formed by first and

second sleeves

51 and 61 formed by folding an exterior sheet 44 extending from the outer surface of the liquid absorbing structure 41 on the outer side in the lateral direction X of the liquid absorbing structure 41, respectively. Formed (see FIGS. 2-5).

The gasket cuff 50 forms an inner edge 52 on the inner side in the lateral direction X of the first sleeve 51 and an outer edge 53 on the opposite side. On the inner surface of the first sleeve 51, a gasket elastic member 55 extending in the longitudinal direction Y is attached so as to be retractable in an extended state, and the gasket cuff 50 is elasticized in the longitudinal direction Y. Between the inner surface of the first sleeve 51, that is, between the exterior sheets 44, a side edge portion of the leakage preventing sheet 43 that extends outward in the lateral direction X from the outer surface of the liquid absorbing structure 41 is located. On the inner surface of the first sleeve 51, the exterior sheet 44, the leakage prevention sheet 43, and the gasket elastic member 55 are joined together via joining means such as an adhesive to form a gasket joining region 56. The gasket joint region 56 extends continuously in the longitudinal direction Y of the crotch member 40.

The gasket elastic member 55 includes first to third gasket elastic members 55a to 55c that are spaced apart from each other in the lateral direction X. The first gasket elastic member 55a extends along the outer edge 53, the third gasket elastic member 55c extends along the inner edge 52, and the second gasket elastic member 55b extends therebetween. Thus, the gasket cuff 50 can be elasticized in the longitudinal direction Y by the elastic member, and the gasket cuff 50 stands up from the inner edge 52 so that the outer edge 53 stands up. It can be in close contact with the vicinity. Accordingly, leakage of urine and the like from around the wearer's leg can be prevented.

The gasket elastic member 55 is attached so as to overlap and intersect with the rear elastic member 33 attached to the lower end region 30 a of the rear waist member 30. Therefore, the lower end region 30a can be elasticized in the longitudinal direction Y, and the lower end region 30a can be brought into close contact with the curve of the wearer's buttocks. In particular, in the diaper in which the front and

rear waist members

20 and 30 and the crotch member 40 are formed as separate members as in this embodiment, the crotch member 40 is easy to move relative to the front and

rear waist members

20 and 30. Area 13 tends to wobble. However, this wobble can be suppressed by bringing the lower end region 30a into close contact with the wearer.

As the first to third gasket elastic members 55a to 55c, elastic yarns of about 470 to 1240 dtex can be used, respectively, and the elongation rate is about 1.5 to 3.0 times. The first to third gasket elastic members 55a to 55c are attached so as to be separated from each other in the lateral direction X by about 3 to 20 mm. By setting the separation distance to 3 mm or more, the elastic members can be prevented from overlapping each other and coming into contact with the wearer's skin, and gather marks can be prevented from being formed on the skin. By setting the separation distance to 20 mm or less, the gasket cuff 50 can be reliably raised and brought into contact with the wearer's skin.

The first to third gasket elastic members 55a to 55c are attached to the outer side in the lateral direction X at positions corresponding to the intermediate portion 47 of the liquid absorbing structure 41, and are attached at positions corresponding to the front and

rear portions

45 and 46. It is not attached or it is attached slightly extending. In other words, the first to third gasket elastic members 55a to 55c are attached so that the contraction force does not act on the liquid absorbing structure 41 at the front and

rear portions

45 and 46. Accordingly, the first to third gasket elastic members 55a to 55c can prevent the front and

rear portions

45 and 46 from being wrinkled.

The third gasket elastic member 55c is separated from the side edge located at the intermediate portion 47 of the liquid absorbing structure 41 by about 5 to 15 mm. By making the separation dimension 5 mm or more, wrinkles can be prevented from occurring in the intermediate portion 47, and the required contraction of the third gasket elastic member 55 c is not hindered by the rigidity of the intermediate portion 47. Can do. By setting the separation distance of the third gasket elastic member 55c to 15 mm or less, the side edge of the liquid absorbing structure 41 can be pressed against the wearer's body by the required contraction of the elastic member.

The leakage barrier cuff 60 is formed by a second sleeve 61 in which an exterior sheet 44 extending further from the inner edge 52 of the gasket cuff 50 is folded. The exterior sheet 44 is joined to each other on the inner surface of the second sleeve 61, and includes a proximal edge 62 that is continuous with the inner edge 52, and a distal edge 63 that is located on the body side of the proximal edge 62. The inner edge 52 and the proximal edge 62 show substantially the same part. Therefore, the proximal edge 62 is joined to the exterior sheet 44 in the entire longitudinal direction Y through the leakage preventing sheet 43 together with the inner edge 52.

In the second sleeve 61, a barrier elastic member 64 extending in the vertical direction Y is attached in a stretched state so as to be contractible, and the leak barrier cuff 60 is elasticized in the vertical direction Y. The barrier elastic member 64 includes four elastic members of first to fourth barrier elastic members 64 a to 64 d from the distal edge 63 toward the proximal edge 62.

As the first to fourth barrier elastic members 64a to 64d, an elastic thread of about 470 to 1240 dtex can be used, and the elongation rate can be about 1.5 to 3.0 times. The first to fourth barrier elastic members 64a to 64d are attached so as to be separated from each other by about 3 to 20 mm in the lateral direction X. By setting the separation distance to 3 mm or more, it is possible to prevent the elastic members from overlapping and contact with the wearer's skin, and to prevent the skin from being gathered. By setting the separation distance to 20 mm or less, the leakage barrier cuff 60 can be reliably raised and brought into contact with the wearer's skin.

The fourth barrier elastic member 64d is spaced about 5 mm or more from the inner edge 52 of the gasket cuff 50 toward the distal edge 63 side. By setting the separation dimension to 5 mm or more, the inner edge 52 and the proximal edge 62 can be brought into close contact with the vicinity of the base of the wearer's leg.
The first to fourth barrier elastic members 64a to 64d are positioned on the outer side in the lateral direction X of the intermediate portion 47 of the liquid absorbing structure 41, and are attached so as to extend toward the front and

rear portions

45 and 46.

A virtual folding line 65 extending in the longitudinal direction Y is formed between the proximal edge 62 and the distal edge 63 of the leakage barrier cuff 60 and between the third barrier elastic member 64c and the fourth barrier elastic member 64d. Has been. The leak barrier cuff 60 is folded along a virtual folding line 65 in a non-stretched state of the barrier elastic member 64 so that the distal edge 63 is positioned outside the virtual folding line 65 in the lateral direction X. The folded leakage barrier cuff 60 is positioned on the body side in the front and

rear portions

45 and 46 of the liquid absorption structure 41 and on the outer side in the lateral direction X without overlapping in the intermediate portion 47.

The folded leakage barrier cuff 60 is joined to the interior sheet 42 through the joining means such as an adhesive at the front and

rear portions

45 and 46 of the liquid absorbing structure 41 to form front and rear joining

regions

66 and 67. The front and rear joining

regions

66 and 67 extend in the vertical direction Y.

In the diaper as described above, the distal edge 63 of the leakage barrier cuff 60 is erected so as to be separated from the interior sheet 42 and closely contacts the base of the wearer's leg, and the outer edge 53 of the gasket cuff 50 is far away. The outer edge 63 is in close contact with the wearer's thigh around the lateral direction X. That is, a double cuff is formed by the leak barrier cuff 60 and the gasket cuff 50, and leakage of urine and the like from around the legs can be prevented.

The tensile stress in the longitudinal direction Y of the leak barrier cuff 60 as described above is larger than the tensile stress in the longitudinal direction Y of the gasket cuff 50. By forming in this way, the leakage barrier cuff 60 located inside the gasket cuff 50 can be brought into close contact with the wearer's thigh in a surface. Further, the

cuffs

50 and 60 are separated from each other and come into contact with the wearer, and leakage of urine and the like can be prevented in two stages. The tensile stress in the longitudinal direction Y of the gasket cuff 50 and the leakage barrier cuff 60 can be variously set according to the number and thickness of each elastic member, and the magnitude relationship of the tensile stress is not limited as described above but can be set as appropriate. is there.

The length dimension from the proximal edge 62 to the distal edge 63 of the leak barrier cuff 60 is about 260-300 mm, preferably about 290 mm, and the length dimension from the inner edge 52 to the outer edge 53 of the gasket cuff 50 is The length is about 200 to 350 mm, preferably about 230 to 270 mm, so that the length of the leakage barrier cuff 60 is larger than the length of the gasket cuff 50. By adopting such a dimensional relationship and the above-described tensile stress relationship, the leak barrier cuff 60 extends from the inside of the gasket cuff 50 as shown in FIG. When viewed from the inside of the diaper 10, only the leg opening formed by the leak barrier cuff 60 is visible, and the gasket cuff 50 is hidden behind the leak barrier cuff 60 and cannot be seen. That is, only one leg opening can be confirmed, and it is only necessary to pass the leg of the wearer through the leg opening. In addition, it is possible to inform the wearer and caregivers such as their parents that it is possible to prevent leakage of urine or the like with the double cuff, and to give a sense of security.

Since the leaked barrier cuff 60 is joined at the positions where it overlaps with the front and

rear portions

45 and 46 of the liquid absorption structure 41 by the front and rear joining

regions

66 and 67, even if the barrier elastic member 64 contracts, The leading edge 63 does not stand up. Therefore, the liquid absorbing structure 41 can always contact the wearer's body in a wide area, does not form a gap with the body, and prevents urine etc. from flowing and leaking from the waist opening or the like. can do. Further, by making the length dimension in the longitudinal direction Y of the front joining region 66 larger than that of the rear joining region 67, the liquid absorbing structure 41 is brought into close contact with the wearer's body on the front waist region 11 side. In the rear waist region 12 side, the standing region of the leakage barrier cuff 60 can be increased.

Since the fourth barrier elastic member 64d of the barrier elastic member 64 is located between the proximal edge 62 and the virtual folding line 65, the rigidity between them is increased and the leak barrier cuff 60 is reliably raised. The distal edge 63 can be brought into contact with the wearer's buttocks.

The length dimension in the longitudinal direction Y of the diaper of the present invention is about 400 to 520 mm, preferably about 410 to 450 mm, and 415 mm in this embodiment. Similarly, the length dimension in the longitudinal direction Y of the crotch member 40 is about 370 to 450 mm, preferably about 350 to 380 mm, and in this embodiment is about 375 mm. The length dimension in the longitudinal direction Y of the front waist member 20 forming the front waist region 11 is about 80 to 130 mm, preferably about 85 to 125 mm, and in this embodiment, about 90 mm. The length of the rear waist member 30 forming the rear waist region 12 in the longitudinal direction Y is about 150 to 190 mm, preferably about 155 to 185 mm, and in this embodiment about 155 mm.

The crotch member 40 is partially overlapped with the front and

rear waist members

20 and 30 of the diaper 10, but the front waist member 20 has a length dimension of about 70 mm in the longitudinal direction Y of the liquid absorbing structure 41. Overlap, in the rear waist member 30, about 80mm overlaps this. That is, the liquid absorption structure 41 occupies about 45% of the length dimension of the front waist member 20 in the longitudinal direction Y and about 24% of the rear waist member 30.
Furthermore, the front and rear joining

regions

66 and 67 are formed at these overlapping positions, and the lengths in the vertical direction Y are about 60 mm and about 45 mm, respectively. The length dimension of the front joint region 66 in the longitudinal direction Y is about 45 to 70%, preferably about 55% to 67% of the length dimension of the front waist region 11 in the longitudinal direction Y. The length dimension in the direction Y is about 30 to 50%, preferably about 29% of the length dimension in the longitudinal direction Y of the rear waist region 12.

The front and rear joining

regions

66 and 67 are formed so as to overlap the front and rear

elastic members

23 and 33 of the front and

rear waist members

20 and 30. That is, the front and rear

elastic members

23 and 33 are attached apart from each other in the vicinity of the virtual longitudinal center line PP so that the contraction force does not act on the portion overlapping the liquid absorbing structure 41. However, the front and rear

elastic members

23 and 33 extend from the side edges 24 and 34 toward the virtual longitudinal center line PP until they intersect at least the front and rear joining

regions

66 and 67. Therefore, the front and rear joining

regions

66 and 67 can be surely pressed toward the wearer's body, and the formation of a gap between the liquid absorbing structure 41 and the wearer can be prevented.

The present invention can be applied to a diaper that has a small length in the longitudinal direction Y of the diaper 10 and that is particularly suitable for infants. Even when the length dimension in the longitudinal direction Y of the diaper 10 is reduced, it is preferable not to make the liquid absorption structure 41 small so that the amount of absorption of urine or the like is not reduced. If it does so, the ratio for which the liquid absorption structure 41 with respect to the diaper 10 accounts will become large as mentioned above. Since the liquid absorbing structure 41 is generally large in rigidity, if the proportion of the liquid absorbing structure 41 increases, the front and

rear waist members

20 and 30 may not be in close contact with the wearer's body. However, in this embodiment, by forming the front and rear joining

regions

66 and 67, the liquid absorbing structure 41 can be brought into close contact with the wearer in the front and

rear waist regions

11 and 12, and the diaper 10 can be prevented from slipping off. It is possible to prevent the formation of a gap between the wearer and the wearer.

The length dimension in the longitudinal direction Y of the rear waist member 30 is set to be larger than the length dimension of the front waist member 20. In such a diaper 10, as shown in FIG.1 and FIG.6, the lower end area | region 30a of the back waist member 30 is extended to the crotch area 13 side, and functions so that a wearer's heel may be coat | covered. Such a rear waist member 30 preferably extends so as to cover the leg opening in the longitudinal direction Y. That is, it is preferable that the lower end region 30 a of the rear waist member 30 extends from the waist opening end edge to the crotch region 13 side beyond the distal edge 63 of the leak barrier cuff 60. By forming in this way, even if the lower end region 30a covers the wearer's heel and excrement leaks from the leg opening, this can be received. Therefore, it is possible to prevent excrement from adhering to the wearer or clothes. In particular, when the diaper 10 can be removed from a sleeping infant or the like, excrement tends to leak from the leg opening, but this can be prevented.

Outside the longitudinal direction Y of the crotch member 40 are formed front and rear outside

elastic regions

27 and 37 which are elasticized by the front and back

elastic members

23 and 33. Inner

elastic regions

28 and 38 are formed. A part of the front outer elastic region 27 includes a front flap portion 48, and the rear outer elastic region 28 is located outside the rear flap portion 49. The extension stress of the front and rear outer

elastic regions

27 and 37 is set smaller than the extension stress of the front and rear inner

elastic regions

28 and 38. That is, by increasing the tensile stress of the front and rear inner

elastic regions

28 and 38, the liquid absorption structure 41 of the clot member 40 can be brought into close contact with the wearer's body side, and the diaper can be prevented from slipping down.

In order to make the front and

rear waist members

20 and 30 elastic in the lateral direction X, a plurality of elastic yarns are used, but not limited to this, various elastic members such as an elastic sheet and a belt-like elastic body are used. be able to. Similarly, various elastic members can be used for the gasket elastic member 55 and the barrier elastic member 64. As the liquid absorption structure 41, the intermediate portion 47 having a lateral length X that is smaller than that of the front and

rear portions

45 and 46 is used. It is also possible to use X having the same length dimension.

10 Diapers (wearing articles)
11 front waist region 12 rear waist region 13 crotch region 20 front waist member 23 front elastic member 27 front outer elastic region 28 front inner elastic region 30 rear waist member 30a lower end region 33 rear elastic member 37 rear outer elastic region 38 rear inner elastic region 40 Crotch member 41 Liquid absorbing structure 45 Front portion 46 Rear portion 47 Intermediate portion 50 Gasket cuff 52 Inner edge 53 Outer edge 55 Gasket elastic member 60 Leakage barrier cuff 62 Proximal edge 63 Distal edge 64 Barrier elastic member 65 Virtual folding line 66 Front Bonding area 67 Rear bonding area X Horizontal direction Y Vertical direction

Claims

A longitudinal and lateral direction, a body side and the opposite side, a front waist region, a rear waist region, a chassis including a crotch region located between the front and rear waist regions, and an absorbent that extends from the crotch region to the front and rear waist region. In a wearing article including a liquid structure, a pair of leakage barrier cuffs located on the body side of the chassis, and a pair of gasket cuffs located on the laterally outer side of the liquid absorption structure,
The liquid absorbing structure includes a front and rear portion that is spaced apart in the longitudinal direction, and an intermediate portion that is located between the front and rear portions,
The leak barrier cuff includes a proximal edge joined to the chassis, a distal edge elastically elastically stretchable in the longitudinal direction and separable from the chassis to the body side, the proximal edge and the distal edge An imaginary folding line that is positioned between the edge and extends in the longitudinal direction, and is bent along the imaginary folding line, and the distal edge is joined to the liquid-absorbing structure at a position that overlaps the front and rear portions. And the front and rear joining regions extending in the longitudinal direction are formed.
The leak barrier cuff is elasticized by a plurality of elastic members extending in the longitudinal direction, and at least one of the elastic members is disposed between the proximal edge and the virtual folding line. Wearing articles.
The front joint region has a length dimension of 45 to 70% of the longitudinal length dimension of the front waist region, and the rear joint region has a length dimension of the longitudinal direction of the rear waist region. The wearing article according to claim 1 or 2, which has a length dimension of 30 to 50%.
The wearing article according to any one of claims 1 to 3, wherein the front joint region is formed to have a length dimension in the longitudinal direction larger than that of the rear joint region.
The gasket cuff includes an inner edge located on the inner side in the lateral direction and an outer edge located on the outer side and elasticized so as to be stretchable in the longitudinal direction, and the extension stress of the distal edge of the leak barrier cuff is The wearing article according to any one of claims 1 to 4, wherein the wearing article is made larger than the tensile stress of the outer edge of the gasket cuff.
The liquid-absorbing structure includes a liquid-absorbent core material, and the liquid-absorbent core material has a lateral length dimension of the central portion smaller than a lateral length dimension of the front and rear portions. The wearing article according to any one of claims 1 to 5, wherein the proximal edge of the leak barrier cuff is formed and joined to the chassis without overlapping the liquid-absorbent core material at the central portion.
The wearing article according to any one of claims 1 to 6, wherein the front / rear waist region is elasticized by a plurality of elastic members extending in the lateral direction, and at least a part of the elastic member overlaps the front / rear joining region.
The length dimension from the proximal edge to the distal edge of the leak barrier cuff is longer than the length dimension from the inner edge to the outer edge of the gasket cuff. Wearing article as described in.
The chassis has a longitudinal dimension of the rear waist region that is larger than that of the front waist region, and a lower end region that extends from the front waist region on the crotch region side of the rear waist region. Including
The gasket cuff according to claim 7 or 8, wherein the gasket cuff is elasticized by a plurality of elastic members extending in the longitudinal direction, and the elastic member of the gasket cuff is attached to overlap with at least a part of the elastic member in the lower end region. Wearing articles.