JPH11226053A - Absorptive article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hardly leaking absorptive article by promptly spreading liquid excreta. SOLUTION: This absorptive article is provided with a liquid transmissive top sheet 2, a liquid non-transmissive back sheet 3, an absorbent 4 arranged between both sheets 2 and 3 and leakage prevention three-dimensional gathers 13 and 14 arranged in the longitudinal direction of the absorbent 4 and provided with an elastic body 7 on a side edge part. The three-dimensional gathers 13 and 14 are linearly fixed with the longitudinal direction entire area of the absorptive article as a first fixing line 16 at least at a part on the absorbent 4 of a front body and a rear body and raised with the first fixing line 16 as a base end 8. The top sheet 2 is fixed to two parts for which the longitudinal direction entire area of a point between the edge part of the three-dimensional gather 13 and the base end 8 is a second fixing line 18 and the longitudinal direction entire area of the point on the inner side of the base end 8 of the three- dimensional gather 13 on the absorbent 4 is a third fixing line 17. Thus, a liquid guiding free part 19 which is a space for guiding the liquid excreta is formed by the first fixing line 16, the second fixing line 18 and the third fixing line 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent pad used for babies or incontinent persons, an absorbent article used for disposable diapers and the like.

[0002]

2. Description of the Related Art Conventionally, in a disposable absorbent article for treating excrement such as urine, menstrual blood, and stool, if the excrement is excreted at a speed higher than the absorption rate of the absorbent, or if the stool is absorbed with high viscosity. When excretion is difficult, the absorbent body cannot absorb the excretion and may leak from the central part of the absorbent article.

In order to eliminate these leaks, Japanese Patent Laid-Open No.
JP-A-280951 and JP-A-5-184622 propose an absorbent article having three-dimensional gathers arranged along both longitudinal edges of an absorbent body and standing up toward the wearer's body.

Japanese Unexamined Patent Publications Nos. 63-21901, 2-174845, 2-71521, and 3-218752 disclose a three-dimensional solid structure as a leak preventing function. Gathered ones have been proposed.

[0005]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Laid-Open No. 3-280 is disclosed.
No. 951 and Japanese Patent Application Laid-Open No. 5-184622 disclose absorbent articles along the both longitudinal edges of the absorber in order to prevent excretion from leaking from the leg openings. A three-dimensional gather is formed toward the body of the child.

[0006] Absorbent articles such as those described in JP-A-63-21901, JP-A-2-174845, JP-A-2-71521, and JP-A-3-218752 have a leg opening. In order to prevent excretion from leaking from the part, a three-dimensional gather with a double structure is formed, but if a large amount of urine is excreted even if the weir becomes double,
Urine could pass through the double weir and was insufficient to prevent leakage.

[0007]

The first aspect of the present invention is to provide a liquid-permeable topsheet (2), a liquid-impermeable backsheet (3), and an absorber ( 4)
And an absorbent article (1) having leakage-preventing three-dimensional gathers provided on both sides in the longitudinal direction, wherein the three-dimensional gathers are provided on both sides of the absorbent article (1) in the longitudinal direction on the front body absorber. A first fixed line (16) extending from the upper body to the back body is defined as a base end (16), and is formed so as to rise by a stretchable elastic member (7) arranged in an extended state at a side edge (15). At least a three-dimensional gather portion (13) formed on the side wall between the side edge (15) and the base end (16) of the three-dimensional gather (13). A side edge of the topsheet (2) is fixed by the line (18), and the topsheet (2) further includes the absorbent body (16) inside the base end (16) of the three-dimensional gather (13). 4) On top of the third solid along its longitudinal direction Characterized in that it is secured by a line (17), in the absorbent article (1) having inductive cavity of liquid excrement (19).

[0008] The second aspect of the present invention is that the three-dimensional leakage prevent- er is configured such that a side flap (5) extending outward from both side edges of the absorber (4) is folded in the direction of the absorber (4). A stretchable elastic member (7) in a stretched state on the folded line (10) and the side edge (15) of the flap (5),
(7) is arranged, and a portion between the folding line (10) and the side edge (15) of the side flap (5) is moved from above the absorber at the front body of the absorbent article (1) to the back body. The base end (16) is formed by adhesively fixing (9) to the inner surface of the absorbent article at the first fixing line (16) extending over the absorbent body, and the elastic elasticity disposed at the folding line (10) Second solid gather (14) standing up by member (7)
And a first three-dimensional gather (13) raised by an elastic member (7) disposed on the side edge (15). The top sheet (2) is provided on the inner surface of the side wall of the first three-dimensional gather (13). Are fixed in the longitudinal direction by a second fixing line (18), and the top sheet (2) is further fixed inside the first fixing line (16). Absorber (2) at line (17)
2. A guiding cavity for liquid excrement according to claim 1, wherein the guiding cavity is longitudinally glued and fixed.
The absorbent article (1) having

A third aspect of the present invention is an absorbent article (1) having a cavity (19) for guiding liquid excrement according to the above (1) or (2), and a waist from the belly of the wearer to the waist. Exterior sheet (2) for holding the absorbent article (1) against the wearer by surrounding the
9), wherein the absorbent article (1) comprises an exterior sheet (2)
9) are arranged in the central region along the longitudinal direction, and the both side edges of the front body and the back body of the exterior sheet (29) are joined to form an opening around the waist and a pair of openings around the legs. The elastic members (20) and (2) extend along the opening.
Pants-type disposable diaper to which 3) is attached (30)
It is in.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The absorbent article of the present invention comprises a liquid-permeable top sheet (2), a liquid-impermeable back sheet (3), and an absorber (4) disposed between the two sheets. )
And an absorbent article (1) having three-dimensional leak-proof gathers provided on both sides in the longitudinal direction. Then, the three-dimensional gathers are formed on both sides in the longitudinal direction of the absorbent article (1).
The first fixed line (16) extending from the front body absorber to the rear body absorber is defined as a base end (16), and its side edge (1)
The three-dimensional gather portion (1) formed so as to stand up by the elastic member (7) arranged in the extended state in (5).
3) It has at least a portion. The three-dimensional gather (13) has a side edge (15) and a base end (16).
A second fixed line (1) along the longitudinal direction
The side edge of the topsheet (2) is fixed by 8), and the topsheet (2) further includes the absorber (4) inside the base end (16) of the three-dimensional gather (13). Above, a third fixed line (1
7).

[0011] The absorbent article of the present invention is characterized by having the above structure. In the absorbent article of the present invention having such a structure, a triangular prism-shaped space is formed by three points of the first fixed line that is the base end of the three-dimensional gather, the second fixed line, and the third fixed line of the top sheet, When the wearer excretes the liquid excrement, the excrement that does not catch up with the absorption speed of the absorber and tries to overflow is taken into the liquid guiding space, diffused, and absorbed to prevent the excretion from leaking. Can be.

The three-dimensional gathers are linearly adhered and fixed in the longitudinal direction of the absorbent article at least at a part of the front body and the back body on the absorber, and are formed so as to rise from the fixing line as a base end. However, the crotch portion does not need to have a base end on the absorber. For example, in the case of an hourglass-shaped or T-shaped absorber, the crotch portion adheres to a portion where the absorber is not present in the neck. Ends can also be provided.

In the absorbent article according to the present invention, in the liquid guiding space, a top whose side edge is adhesively fixed to a side flap part forming a three-dimensional gather and a side wall part of the three-dimensional gather formed by the side flap. It is preferable that the structure is such that the sheet portion can be further extended. In order to obtain the above-described extensible structure, it is preferable to form a folded portion in each of the three-dimensional gathers and the top sheet in the space.

That is, in the case of three-dimensional gathers, the side flap portions forming the three-dimensional gathers are fixed by longitudinal fixing lines that extend through the crotch portion of the absorbent article and the side portions of the absorber located at the front body and the back body. Adhesively fixed to the inner surface of the absorbent article, and further fold the side flap portion from the fixing line to the side edge in the opposite direction with the folding line, that is, in the side edge direction of the absorbent article, and expand and contract to the side edge of the folded side flap It is formed by arranging an elastic elastic member, but by forming the folded line at a position away from the fixed line by a predetermined distance in the center direction of the absorber, from the fixed line to the absorber center side from the folded line. It is preferable to form a portion where the side flaps are folded over by a distance to the fixing line.

[0015] Similarly, the top sheet having the side edge portion adhered and fixed in the longitudinal direction to the inner surface of the side wall of the three-dimensional gather formed as described above also has a structure in which the absorber is positioned at a predetermined distance from the side edge. Folding inward in the direction, and fixing the side edge portion away from the folding line to the three-dimensional gather side wall by gluing the top sheet to each other in a non-adhesive state with a predetermined width extending from the folding line to the fixing line. It is desirable to adhere and fix to the three-dimensional gather side wall so as to have.

By forming the three-dimensional gather having the above-described structure, the absorbent article according to the present invention can provide the three-dimensional gather when the three-dimensional gather rises, between the folding point of the three-dimensional gather and the fixed line and the folding point of the top sheet. The three-dimensional gather and the top sheet both extend between the fixed lines, so that the height of the three-dimensional gather can be increased, and a first fixed line that is a base end of the three-dimensional gather and a second fixed line of the top sheet. In addition, the volume of the liquid guiding space formed by the three points of the third fixed line is increased, so that a large amount of liquid excrement can be guided.

It is also possible to arrange an elastic member inside the folded line of the side flap forming the solid gather or inside the folded line of the top sheet. And the liquid guiding space can be reliably formed, and the leakage prevention effect can be improved.

Further, the absorbent article of the present invention is provided with a double leak-proof solid gather having a pair of solid gathers on both outer sides of the solid gather adhered to the top sheet. Is possible. A double solid gather having a pair of solid gathers installed on the outside can be formed together by side flaps extending outward from both side edges of the absorber.

That is, the side flaps are extended outward from both side edges of the absorber (4), and the extended side flaps (5) are folded back toward the absorber (4), and the side flaps (5) are folded back. The stretchable elastic members (7) and (7) in the extended state are arranged on the line (10) and the side edge (15), respectively, between the folded line (10) of the side flap (5) and the side edge (15). Is a first fixed line (1) extending from the front body of the absorbent article (1) to the rear body of the absorbent article (1).
The base end (16) is formed by adhesively fixing (9) the inner surface of the absorbent article in (6).

In this way, the outer two-dimensional gathers (14) that rise up by the elastic members (7) arranged on the return line (10) and the side edges (15) are arranged. A first three-dimensional gather (13) standing up by the elastic member (7) can be formed. The double solid gather formed in this way has the side edge of the top sheet (2) adhered and fixed (9) in the longitudinal direction to the inner surface of the side wall of the first solid gather (13) by the second fixing line (18). And the top sheet (2)
Furthermore, a liquid guiding cavity (19) is formed by being adhesively fixed (9) in the longitudinal direction on the absorber (2) at a third fixing line (17) located inside the first fixing line (16). ing.

The height of the double solid gather, ie, the first
And the distance from the base end of the second three-dimensional gather to the folded line and the distance from the base end to the side edge are 1.5 to 5 cm,
Preferably it is 2 to 4 cm. If the height of the three-dimensional gathers is less than 1.5 cm, the effect of preventing leakage cannot be sufficiently obtained. On the other hand, if the height exceeds 5 cm, the three-dimensional gathers may be bent when worn, and the effect of preventing leakage may decrease. In addition, it is preferable that the first and second solid gathers have a height ratio of 1: 0.2 to 1: 2. If the first: second ratio exceeds 1: 0.2 and the first three-dimensional gathers become high, the first three-dimensional gathers cover the second three-dimensional gathers, so that the effect of preventing the second three-dimensional gathers from leaking decreases. On the other hand, when the first-to-second ratio exceeds 1: 2 and the second three-dimensional gather becomes high, the adhesion of the first three-dimensional gather to the wearer becomes insufficient, and the first three-dimensional gather is prevented from leaking. Will decrease.

As the sheet forming the three-dimensional gather, any sheet having a water repellency that does not allow excrement to permeate can be used. For example, a back flap or a side flap forming an edge of the absorber may be used. Extend outward,
It may be formed by this, or it may be formed by forming a three-dimensional gather with a separate sheet and fixing it on the absorbent article. However, it is particularly preferable to form three-dimensional gathers with the side flaps, because it is efficient.

The topsheet 2 used in the absorbent article of the present invention is formed of a hydrophilic or hydrophobic nonwoven fabric, woven fabric, porous plastic film, or the like, and is made of fibers such as polypropylene, polyethylene, polyester, and nylon. Alternatively, it can be composed of fibers of polyester, polypropylene, polyethylene, nylon or the like, or composite fibers combining two or more kinds. In particular, conjugate fibers of polyester / polyester, polyester / polyethylene and polypropylene / polyethylene are preferred from the viewpoint of strength, but are not limited thereto.

The back sheet 3 can be formed of a liquid-impermeable film such as polyethylene, or a laminate of a liquid-impermeable film and a nonwoven fabric or a woven fabric. It is preferable to use a material having

The absorber 4 is formed of a known absorbent material used for an already known absorbent article. That is, absorbent fibers such as cotton-like pulp and rayon are matted, and SAPs are uniformly dispersed or arranged in a layered form, and wrapped with a hydrophilic sheet, or wrapped with a hydrophilic sheet. Can be adopted. In the case of the absorbent body 4 having flocculent pulp, 3 to 60% by weight of the heat-fusible substance may be mixed with the flocculent pulp, and these may be thermocompression-bonded.

The shape of the absorber may be rectangular, T-shaped or hourglass, but an hourglass is preferred because it provides good fit and a pocket structure of three-dimensional gathers.

The above-mentioned cotton-like pulp preferably has a fiber length of 5 mm or less obtained by defibrating a chemical pulp sheet or a mechanical pulp sheet with a crusher. In addition, pulp raw materials are not limited to conifers, but include hardwood, straw, bamboo,
In addition to kenaf, used paper pulp and the like can also be used.
The amount of the cotton-like pulp used depends on the structure of the absorber 4, for example,
Although it depends on whether the cotton-like pulp is used alone, a plurality of such pulp are used, or another material such as SAP is used in combination, 50 to 400 g / m ² is generally suitable.

As the SAP, starch, cellulose, and synthetic polymer can be used. Specifically, a starch-acrylic acid (salt) graft copolymer, a saponified starch-ethyl acrylate graft copolymer, a saponified starch-methyl methacrylate graft copolymer, and a starch-acrylonitrile graft copolymer Saponified polymer, starch-acrylamide graft copolymer, saponified starch-acrylonitrile-2-acrylamido-2-methylpropanesulfonic acid graft copolymer, acrylic acid (salt) polymer, acrylic acid Crosslinked polyethylene oxide, crosslinked product of sodium carboxymethyl cellulose, crosslinked product of polyvinyl alcohol-maleic anhydride reactant and the like. In particular, those based on sodium polyacrylate,
It is most suitable because it absorbs urine, bodily fluids and water more than 20 times its own weight.

The SAP is used in an amount of 10 to 500% by weight, preferably 15% by weight, based on the total weight of the dry cotton-like pulp.
It is effective to be substantially uniformly distributed in the cotton-like pulp. When the absorbent body 4 is compression molded, the surface may be smoothed so as to have a uniform density, or embossing may be performed on the surface to guide urine or bodily fluids in the vertical and oblique directions. You may make it different. Further, as the above-mentioned hydrophilic sheet, tissue, absorbent paper, hydrophilic non-woven fabric and the like can be adopted.

A diffusion layer formed of a hydrophilic and liquid-permeable nonwoven fabric, woven fabric, porous plastic, cotton-like pulp, or the like may be provided between the top sheet 2 and the absorber 4.
By providing this diffusion layer, it is possible to prevent the leakage of urine and body fluid without lowering the absorption rate. The diffusion layer can be made of fibers such as polypropylene, polyethylene, polyester, rayon, and pulp, or can be made of these composite fibers, and is fixed to the absorber 4 by using an adhesive or the like. .

As the elastic members, elastic members such as urethane thread, thread rubber and the like used in ordinary disposable diapers can be used as they are. It is bonded and fixed to a predetermined area with an adhesive.

As the side flap or the sheet forming a part of the side flap, a non-woven fabric made of a synthetic fiber made of polyethylene, polypropylene, polyester or other thermoplastic resin can be used. Spunbond / melt blow /
A material having high water repellency, such as a spunbonded nonwoven fabric, is more preferable.

The absorbent article according to the present invention is combined with an exterior sheet (29) which surrounds the waist from the belly of the wearer to the waist and holds the absorbent article (1) against the wearer, thereby obtaining the absorbent article (1). Is disposed in the central region along the longitudinal direction of the exterior sheet (29), and the both sides of the front body and the rear body of the exterior sheet (29) are joined to form a waist opening and a pair of leg openings, The elastic member (2) extends along these openings.
By attaching 0) and (23), a pants-type disposable diaper (30) can be formed.

In the absorbent article of the present invention, a part of the absorbent article is preliminarily adhered and fixed to an exterior sheet for holding the absorbent article against the wearer by surrounding the waist from the belly of the wearer, It is also possible to provide releasable joining means on both side edges of the front body and the back body of the exterior sheet to form a spread-type disposable diaper, or to use the disposable diaper as an auxiliary absorbent pad. Further, it can be combined with a conventional diaper cover.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments of the present invention, but the present invention is not limited thereto. FIG. 1 shows an absorbent article 1 according to an embodiment of the present invention.
It is a perspective view which shows the state which expanded. The absorbent article 1 of FIG. 1 includes a top sheet 2, a back sheet 3, an hourglass-shaped absorber 4, and a back sheet 3 on both side edges of the absorber 4.
And a side flap 5 folded outward on an hourglass-shaped absorber 4. Then, the folded side flap 5 is further folded outward, and both ends in the longitudinal direction are fixed to the inner surface of the absorbent article in the wide portion of the hourglass-shaped absorber 4, and the edge of the side flap is provided. By arranging the elastic member 7 on the folding line 15 and the folding line 10, the central region in the longitudinal direction of the side flaps rises upward to form double solid gathers 13 and 14.

FIG. 2 is a cross-sectional view showing a state in which the absorbent article in FIG. 1 is cut in a direction XX ′ perpendicular to the longitudinal direction. The absorbent article 1 includes a liquid-permeable top sheet 2 and a liquid-permeable top sheet 2. It has an impermeable back sheet 3, an absorber 4 disposed therebetween, and side flaps 5 formed by side sheets 22 that are joined to both side edges of the back sheet 3 and extend outward. And the side flap 5 is the folded line 1
0, the elastic member 7 is disposed on the folded line 10 and the second solid gather 14
Is formed. Also, the folded side flap 5
Is fixed to the back sheet at the first fixing line 16, and the elastic member 7 is arranged on the side edge 15 of the folded portion of the side flap 5 so as to be wrapped by the side flap 5, and the first three-dimensional gather 13 is formed. Has formed.

Further, the top sheet 2 has a third fixed line 17.
Is fixed to the absorber 4 and the side edge of the top sheet 2 is fixed to the side flap 5 at the second fixing line 18, so that the first fixing line 16, the third fixing line 17, and the second fixing line 18 A liquid guiding cavity 19 is formed by the three points.

FIG. 3 is a cross-sectional view showing another embodiment different from FIG. 2 in a state where the absorbent article in FIG. 1 is cut in a direction XX ′ perpendicular to the longitudinal direction. The portion is folded inward on the absorber side, and the folded side edge is adhesively fixed to the side wall of the first three-dimensional gather 13 at the second fixing line 18, and the first fixing line 16 and the second fixing line 1 are fixed.
8 and the third fixed line 17, the liquid guiding space 19
Is formed. In this way, by folding the side edge of the top sheet 2 inward on the absorber side, the liquid guiding cavity 19 can be formed wider.

With the above configuration, the absorbent article 1 of the present invention has the first fixing line 16 as the base end 8 and the side edge 15 of the folded portion of the side flap 5 as the front end edge. It is extended from the three-dimensional gather 13 and the back sheet 3,
The second having the folded line 10 of the side flap 5 as the leading edge
The three-dimensional gathers 14 are double-arranged as leak-proof weirs, and the elastic members 7 are arranged in an extended state at the respective leading edges, so that a structure is formed in which the leading edges are in close contact with the skin during wearing. I have.

FIG. 4 is a cross-sectional view showing a state in which the absorbent article in FIG. 1 is cut in the YY 'direction perpendicular to the longitudinal direction, and corresponds to the cross-sectional view shown in FIG. FIG.
2, the absorbent article 1 has a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, an absorber 4 interposed therebetween, and a back sheet 3 as in the case shown in FIG. A side flap 5 formed by a side sheet 22 extending outward from both side edges of the absorbent body 4. The side flap 5 is folded on the absorbent body 4 by making both sides of the absorbent body 4 a folding line 10, The folded side flap 5 is adhesively fixed to the absorber 4 at the first fixing line 16, further folded outward at the side flap folding line 11, and the side edge 15 of the side flap 5 is also adhesively fixed to the side flap 5 itself. I have.

Further, the top sheet 2 has a third fixed line 1
At 7, the side sheet is fixed to the absorber 4, and the side edge of the top sheet 2 is fixed to the side flap 5 at the second fixing line 18.

FIG. 5 is a cross-sectional view showing another embodiment different from FIG. 4 in a state where the absorbent article in FIG. 1 is cut in the YY ′ direction perpendicular to the longitudinal direction. It corresponds to a plan view. In FIG. 5, the absorbent article 1 corresponds to FIG.
Similarly, the liquid-permeable topsheet 2, the liquid-impermeable backsheet 3, the absorber 4 disposed between them, and the outside extending from both side edges of the backsheet 3. Side flap 5 formed by side sheet 22
The side flaps 5 are folded back on the absorber 4 by making both sides of the absorber 4 into folding lines 10, and the folded side flaps 5 are bonded and fixed to the absorber 4 at the first fixing lines 16. Further, the side flap 5 is folded outward at the side flap return line 11, and the side edge 15 of the side flap 5 is also adhered and fixed to the side flap 5 itself.

The top sheet 2 has a third fixed line 17.
, The side edge of the top sheet 2 is folded back inward on the absorber side at the top sheet folding line 12 located outside the side flap folding line 11, It is fixed to the flap 5.

FIG. 6 is a perspective view in which the adhesive portions of the front body and the back body of the pants-type diaper formed by arranging the absorbent article of the present invention in the central region along the longitudinal direction of the exterior sheet are openly developed. In FIG. 6, the pants-type disposable diaper 30 is used.
Is formed from the absorbent article 1 of the present invention and an exterior sheet 29 that surrounds the waist from the belly of the wearer and holds the absorbent article 1 against the wearer, and the longitudinal direction of the absorbent article 1 Both ends are adhered and fixed to the exterior sheet 29, and the waist elastic members 20 and the leg elastic members 23 are arranged at positions corresponding to the waist opening and the leg opening of the exterior sheet 29.

FIG. 7 is a plan view showing an example in which the absorbent article of the present invention is applied to a diaper using a deployable type. In FIG. 7, the side sheet 22 arranged from both side edges of the disposable diaper 31 to the side edge on the absorber 4 has a folding line 1.
In FIG. 1, the elastic member 7 is disposed in an extended state on the side edge 15 of the folded side sheet 22 in an extended state, and both ends in the longitudinal direction of the folded side sheet 22 are bonded and fixed to the side sheet 22 itself. ing. Further, both side edges of the top sheet 2 arranged on the absorber 4 are folded back to the absorber 4 side at the folding line 12, and the folded side edges are bonded and fixed to the folded side sheet 22 surface.

A cutout 26 for forming a leg opening is formed in a region corresponding to the leg opening of the side flap portion 5 of the diaper 31 to be used, and is adjacent to the cutout 26. The elastic member around the leg 24 is arranged in the longitudinal direction, and the elastic member around the waist 21 is arranged in a region corresponding to the opening around the waist at one edge of the diaper 31. A pair of fastening tapes 25 are attached to both side edges.

FIG. 8 is a cross-sectional view showing a state in which the disposable diaper 31 of the present invention shown in FIG. 7 is cut in the XX 'direction perpendicular to the longitudinal direction. A top sheet 2 and a wide liquid-impermeable back sheet 3;
The absorber 4 disposed between them, and the side sheet 2 disposed from the side edge of the backsheet 3 onto the absorber 4
2 and a back flap 5 formed by the back sheet 3 and the side sheet 22, and leg elasticity for forming leg gathers between the side sheet 22 and the back sheet 3 forming the side flap 5. The member 24 is sandwiched, and the side sheet 22 extends in the absorber direction, is adhered and fixed to the back sheet 3 at the first fixing line 16, and further extends on the side edge 1 of the extended side sheet 22.
In 5, a stretchable elastic member 7 is arranged so as to be wrapped by the side sheet 22 in a stretched state, and forms a three-dimensional gather 13 with the first fixed line 16 as the base end 8.

Further, the top sheet 2 has a third fixed line 17.
At the side, the side edge of the top sheet 2 is folded back inward on the absorber side, and the second fixed line 1
8, the side edges of the top sheet 2 are solid gathers 13.
The first fixed line 16 and the third fixed line 1
The liquid guiding space 19 is formed by the three points 7 and the second fixed line 18.

The absorbent article of the present invention having such a liquid guiding cavity 19 has an effect of guiding and diffusing liquid excretion into the liquid guiding cavity 19, and the excrement is located outside the absorbent article 1. It has a configuration that makes it difficult to flow out.

As described above, the present invention can provide an absorbent article having an excellent effect of preventing excrement leakage. In the above embodiment, the pants-type disposable diaper and the deployable disposable diaper using the absorbent article formed with the double solid gathers by the side flaps are shown, but the solid gathers are formed and adhered separately. It doesn't matter.

[0051]

As described above, in the absorbent article of the present invention,
By providing a liquid guiding cavity for guiding and diffusing liquid excreta, it is possible to provide an absorbent article having an excellent effect of preventing leakage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an absorbent article of the present invention is developed.

FIG. 2 is a cross-sectional view taken along the line X-X ′ of FIG. 1;

FIG. 3 is a cross-sectional view taken along line XX ′ of FIG. 1 showing another example of the absorbent article of the present invention, which is different from FIG.

FIG. 4 is a cross-sectional view taken along the line Y-Y ′ of FIG. 1;

FIG. 5 is a cross-sectional view taken along the line YY ′ of FIG. 1 showing another example of the absorbent article of the present invention, which is different from FIG.

FIG. 6 is a perspective view in which an adhesive portion of a front body and a back body of a pants-type disposable diaper formed by arranging the absorbent article of the present invention in a central region along a longitudinal direction of an exterior sheet is openly developed.

FIG. 7 is a plan view showing the absorbent article according to the present invention as a diaper using a deployed type.

FIG. 8 is a cross-sectional view taken along the line X-X ′ of FIG. 7;

[Explanation of symbols]

1: Absorbent article, 2: Top sheet, 3: Back sheet, 4: Absorbent, 5: Side flap, 6: Free edge,
7: elastic elastic member, 8: base end, 9: adhesive, 10: fold line, 11: side flap return line, 12: top sheet fold line, 13: first three-dimensional gather, 14:
2nd solid gather, 15: edge of side flap, 1
6: first fixed line, 17: third fixed line, 18: second fixed line, 19: liquid guiding space, 20, 21: waist elastic member, 22: side seat, 23, 24: leg elastic member. , 25: fastening tape, 26: hollow part,
27: base tape, 29: exterior sheet, 30: pants-type disposable diaper, 31: deployment-type disposable diaper.

Claims (3)

[Claims] 1. An absorbent having a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between the two sheets, and three-dimensional leak-proof gathers provided on both sides in the longitudinal direction. An article, wherein the three-dimensional gather has a first fixed line extending from the front body absorbent body to the rear body absorbent body at a base end on both longitudinal sides of the absorbent article, and extends to a side edge thereof. It has at least a three-dimensional gather portion formed so as to rise by a stretchable elastic member arranged in a state, and a side wall inner surface between a side edge portion and a base end portion of the three-dimensional gather has a third portion along the longitudinal direction thereof. (2) The side edge of the top sheet is fixed by the fixing line, and the top sheet is further placed on the absorber inside the base end of the three-dimensional gather, along the third direction along the longitudinal direction thereof.
An absorbent article having a guiding void for liquid excrement, the absorbent article being fixed by a fixing line. 2. The leak-preventing three-dimensional gather is configured such that side flaps extending outward from both side edges of the absorber are folded back toward the absorber, and the side flaps are extended and contracted in a folded line and a side edge, respectively. An elastic member is disposed, and a portion between the folded line and the side edge of the side flap is defined by a first fixed line extending from the front body absorber to the rear body absorber of the absorbent article. A second solid gather having a base end formed by being adhered and fixed to an inner surface thereof and rising by an elastic member arranged on the folding line, and a first solid rising by an elastic member arranged on the side edge portion The first three-dimensional gather is formed with a gather, and a side edge of the top sheet is adhesively fixed in a longitudinal direction by a second fixing line on an inner surface of a side wall of the first three-dimensional gather. The absorption having a guiding void for liquid excreta according to claim 1, characterized in that it is adhesively fixed in a longitudinal direction on the absorber at a third fixing line located inside the first fixing line. Products. 3. An absorbent article having a void for guiding liquid excrement according to claim 1 or 2, and applying the absorbent article to the wearer around the waist from the belly of the wearer. The absorbent article is disposed in a central region along the longitudinal direction of the exterior sheet, and is joined to both sides of a front body and a rear body of the exterior sheet to form a pair with the waist opening. A pants-type disposable diaper having openings around the legs formed with elastic members attached along the openings.