JPH105274A - Absorbent articles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve fitting of an absorptive article and to prevent leaking, by attaching a second absorptive body on the both side parts of a first absorptive body set on the central region in the longitudinal direction of the absorptive article and setting stereoscopic gathers on the both side parts in the longitudinal direction of the second absorptive body opposite to the first absorptive body. SOLUTION: An absorptive body 3 is set between a liquid permeable surface sheet 1 and a liquid impermeable back face sheet. The surface sheet 1 is overlapped on the back face sheet. The outside peripheries are integrally adhered and the absorptive body 3 is contained therein. The absorptive body 3 has a first absorptive body 4 to be positioned at the central part of a crotch part. A second absorptive body 5 is placed on the both side parts of a narrow part of the first absorptive body 4 and stereoscopic gathers 6 which are made by bonding stereoscopicgather elastic bodies in a condition stretched along the longitudinal direction of a disposable diaper. Side flaps are formed on the both side parts in the width direction of the absorptive body 3, and an elastic body 7 around legs are placed in a stretched condition between a most outside sheet 15 and another sheet 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an absorbent article in which second absorbent bodies are provided on both sides of a first absorbent body arranged in a longitudinal central region, and the second absorbent body is opposite to the first absorbent body. By arranging three-dimensional gathers on both sides in the longitudinal direction of the side, the second absorber is separated from the outermost layer sheet together with three-dimensional gathers,
It rises to the side of the first absorbent body, substantially raising the crotch weir, improving the fit of the wearer's crotch, and reducing urine and excrement without lowering the crotch's absorbency. The present invention relates to an absorbent article that is preferably used while preventing flow and leakage.

[0002]

2. Description of the Related Art Conventionally, in a disposable absorbent article for treating excretions such as urine, menstrual blood, stool, etc., an absorbent body may be simply rectangular or have a narrow crotch width. , The former has a low fit at the crotch and the latter has a good fit, but the absorption capacity is low due to the narrow width of the absorber at the crotch, and the excrement is absorbed in the part where the absorber does not exist This has the disadvantage of leaking from the crotch part.

In order to solve these drawbacks, there has been disclosed a structure in which a cut is made in the crotch portion of the absorber and turned back to the central portion to increase the absorption capacity at the central portion (Japanese Patent Laid-Open No. 57-15757).
-71402, JP-A-57-77302,
JP-A-57-77303). These are diapers having a so-called hourglass-shaped absorber, in which the inseam area is formed in a thicker layer than the other areas, thereby trying to increase the absorption capacity of the inseam area and prevent excrement leakage. However, as in the previous period, even if the absorption capacity at the center was increased, the absorber at the crotch was substantially narrower, and excrement in the portion where the absorber did not exist was not absorbed. The drawback of leaking from is inevitable. In addition, even if the surface area of the upper surface of the absorber at the crotch is small and the absorbing power of the absorber is large, there is a problem that the absorption rate of excrement is not sufficient, and unabsorbed excrement leaks.

[0004] In order to improve the fit at the crotch and to eliminate the drawbacks of reduced absorption due to the narrow crotch,
A method has been disclosed in which an absorbent article is provided with a concave embossed wire or a bending resistance is changed to enhance the fit without lowering the absorptivity of the crotch portion by bending the absorbent article (Japanese Patent Laid-Open No. Hei 10-260,837). No. 1-162801,
JP-A-2-11138, JP-A-2-11139, and JP-A-4-341261. However, these have the drawback that they may not actually bend as designed and may cause leakage at the crotch, since the absorber is bent only by forming a bent portion on a single absorber. I have.

[0005] In order to reliably bend the absorber at the crotch portion, a method has been disclosed in which the longitudinal side portion of the crotch portion of the absorbent article is folded inward to be joined and fixed (Japanese Unexamined Patent Application Publication No. Hei 4 (1994)).
-51952). However, in this method, since the single absorber is bent at the crotch, the absorber itself is not easily bent, and has a drawback that it is bulky at the crotch and causes discomfort to the wearer.

[0006] As another method for improving the fit of the crotch portion and reducing the absorption power due to the narrowing of the crotch portion, there is provided a three-dimensional gather provided along the longitudinal direction of the absorbent article. There is disclosed a method in which an absorber is provided therein, or a second absorber which becomes a weir rising from a back sheet on both sides of the first absorber (Japanese Utility Model Laid-Open No. 5-9).
525, Japanese Utility Model Laid-Open No. 3-123553, Japanese Utility Model Laid-Open No. 2-96120). These provide an absorbent article that enhances the fit of the crotch without lowering the absorption capacity of the crotch by further arranging the absorber on both sides even if the absorber at the crotch is narrowed. doing. However, the three-dimensional gather having the absorbers has a problem that the stretchable elastic body adhered in the stretched state is less likely to shrink, and the three-dimensional gather itself is less likely to rise.

Further, in order to eliminate these drawbacks,
The crotch of the first absorber is narrowed, and the second absorber is arranged on both sides of the first absorber, so that the excrement that the first absorber could not absorb completely contacts the wearer's crotch inside. A method for absorption into the body is disclosed (Japanese Patent Application Laid-Open No. 1-11920). However, according to this method, although the fit of the crotch is high, three-dimensional gathers are not arranged, and there is no space between the absorbent article and the wearer at the crotch, so that the excrement is reduced to the first absorbent body. When excreted at a rate higher than the absorption rate, even if it is within the absorption capacity of the first absorber, it flows into the second absorber without being absorbed, and the second absorber leaks without absorbing a large amount of excrement There is a disadvantage that.

As another method for improving the fit at the crotch portion, and reducing the drawbacks such as a decrease in absorbing power due to the narrowing of the crotch portion and leakage at the crotch portion, a second absorber is provided on both sides of the first absorber. A method of arranging the barrier cuffs between these absorbers is disclosed (Japanese Patent Application Laid-Open No. Hei 3-11069 and Japanese Utility Model Application Laid-Open No. Hei 6-75441). This method arranges a barrier cuff along the longitudinal direction of the disposable diaper to prevent leakage, and at least in the crotch, by arranging the second absorber on both sides of the first absorber. In addition to improving the fit, the same absorption power as when the rectangular absorber is arranged is maintained in the crotch.
However, since the height of the weirs disposed on the diaper is substantially constant, there is a problem that the prevention of leakage at the crotch portion where leakage easily occurs is not sufficient.

[0009]

SUMMARY OF THE INVENTION In view of the above situation, the present inventors have developed an absorbent body comprising at least a liquid-permeable topsheet and an absorbent, and an absorbent body having at least a part of the absorbent body joined. In the absorbent article comprising the outer layer sheet, the absorbent body is disposed in the longitudinal center region of the absorbent article, and at least on both sides of the crotch of the first absorbent body, the absorbent body is separated from the first absorbent body. By having a pair of second absorbers provided at different positions, it is possible to prevent a decrease in the absorption power of the crotch, and furthermore, to provide a three-dimensional structure on both longitudinal sides of the second absorber opposite to the first absorber. By disposing the gathers, the second absorbent body is separated from the outermost layer sheet together with the three-dimensional gathers and rises to the side of the first absorbent body, thereby substantially increasing the weir at the crotch portion to prevent leakage. At the same time, the wearer's inseam fit It came to the conclusion that it is Rukoto.
An object of the present invention is to provide a second absorbent body on both sides of a first absorbent body disposed in a longitudinal central region of an absorbent article, and to provide a second absorbent body on both longitudinal sides opposite to the first absorbent body. By arranging the three-dimensional gathers on the part, the second absorber is separated from the outermost sheet together with the three-dimensional gathers, rises to the side of the first absorber, substantially raises the crotch weir, and is worn It is an object of the present invention to provide an absorbent article that can be suitably used while enhancing the fit of a person's crotch and preventing the flow and leakage of urine and excrement without reducing the absorptivity of the crotch.

[0010]

SUMMARY OF THE INVENTION The present invention provides an absorbent article comprising an absorbent body comprising at least a liquid-permeable topsheet and an absorber, and an outermost sheet to which a part of the absorbent body is joined. In the above, the absorber, the first absorbent body disposed in the longitudinal central region of the absorbent article, at least on both sides of the crotch of the first absorbent body, provided at a position away from the first absorbent body It consists of a pair of second absorbers, and furthermore, three-dimensional gathers are disposed on both sides in the longitudinal direction of the second absorber opposite to the first absorber, and together with the three-dimensional gathers, the second absorber is the outermost layer The absorbent article stands on the side of the first absorber away from the sheet. Further, the present invention provides a first absorber in which the absorber is narrowed in the crotch, and a pair of second absorbers provided at positions separated from the first absorber on both sides of the narrowed portion. An absorbent article having an absorbent body.

In the absorbent article according to the present invention having the above-described structure, the absorption capacity of the crotch can be improved by providing the second absorbent body on both sides of the first absorbent body arranged in the longitudinal central region of the absorbent article. Of the excrement due to a decrease in the amount of absorption in the crotch portion, or the flow and excretion of the excretion in a portion where the absorber does not exist. Further, by disposing the three-dimensional gathers on both sides in the longitudinal direction opposite to the first absorber of the second absorber, the second absorber is separated from the outermost sheet together with the three-dimensional gathers, and the first absorber is formed. Of the wearer's crotch, increasing the wearability of the wearer's crotch and increasing the lateral absorption capacity of the absorbent article in the crotch, thereby reducing urine and excrement. Flow and leakage are prevented. Further, since the second absorber rises away from the outermost layer sheet together with the three-dimensional gathers, a pocket is formed between the outermost layer sheet and the second absorber to temporarily hold excrement that has passed over the three-dimensional gathers. This prevents leakage from the absorbent article.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The surface sheet used in the present invention is a hydrophilic or hydrophobic nonwoven fabric, woven fabric, porous plastic film, or the like, and its constituent fibers are polypropylene, polyethylene, polyester, nylon or Polyester, polypropylene, polyethylene,
Composite fibers composed of two or more components such as nylon may be used.
In particular, polyester / polyester, polyester /
Polyethylene or a composite fiber of polypropylene / polyethylene is preferred in terms of strength, but is not particularly limited.

The top sheet does not need to be constituted by a single sheet, but may be constituted by a plurality of sheets, for example, by changing the sheet between the upper surface of the absorber and the side flap. When the top sheet is composed of a plurality of sheets, each sheet may be made of a different material, or may be made of the same material.

The back sheet used in the present invention is:
It is composed of a liquid impermeable film such as polyethylene, a material in which the liquid impermeable film is bonded to a nonwoven fabric, a woven fabric, or the like. It is more preferable that the material has air permeability or moisture permeability.

The absorbent is made of cotton-like pulp, SAP, hydrophilic sheet, etc., and is not particularly limited.

The absorbent used in the present invention is made from known absorbent materials commonly used in conventional disposable diapers and other absorbent articles. That is, it is formed of a single-layer or multi-layer mat made of absorbent fibers such as cotton-like pulp and rayon, and is wrapped with a hydrophilic sheet. The SAPs are uniformly mixed in each mat or are arranged in layers between the mats. Alternatively, 3 to 60% by weight of a heat-fusible substance may be mixed with the cotton-like pulp and thermocompression-bonded. Alternatively, only the SAP may be wrapped by the hydrophilic sheet. The flocculent pulp is a chemical pulp sheet or a mechanical pulp sheet having a fiber length of 5 mm or less obtained by defibrating with a crusher. The pulp raw material is not limited to softwoods, but hardwoods, straws, bamboos, and kenafs are also applicable. Also, used paper pulp may be used. The amount of the pulp used varies depending on the intended absorber, for example, depending on whether the pulp is used alone, a plurality of layers are used, or another absorbent is used in combination.
It is in m ^2.

Examples of SAP include starch, cellulose, and synthetic polymer. That is, a starch-acrylic acid (salt) graft copolymer, a saponified product of starch-ethyl acrylate graft copolymer, a saponified product of starch-methyl methacrylate graft copolymer, and a saponified product of starch-acrylonitrile graft copolymer , A saponified starch-acrylamide graft copolymer,
Starch-acrylonitrile 2-acrylamide-2
-Methylpropanesulfonic acid graft copolymer saponified product, acrylic acid (salt) polymer, polyethylene oxide cross-linked with acrylic acid, cross-linked product of sodium carboxymethyl cellulose, cross-linked product of polyvinyl alcohol-maleic anhydride reactant And so on. It absorbs urine, body fluid, and water at least 20 times its own weight, and sodium polyacrylate is most suitable from the viewpoint of absorption performance. S
The distribution amount of the AP was 10% of the total weight of the floc pulp in the dry state.
５００500% by weight, preferably 15-300% by weight, such amounts of SAP being substantially uniformly distributed in the floc. When the SAP absorbs and swells, the particles have minimal interference with each other, are less likely to form continuous permeation barriers, and penetrate and absorb urine and bodily fluids in three dimensions.

The hydrophilic sheet may be a hydrophilic sheet such as a tissue, an absorbent paper, a hydrophilic nonwoven fabric, or the like. As a method of compressing the absorber, the surface of the absorber may be a continuous surface shape such as a roll having a smooth peripheral surface so that the density of the absorber is substantially uniform over the entire surface, or the peripheral surface may be uneven. The density of the absorber may be partially different depending on the roll or the like, and the embossment may have a pattern arrangement for guiding urine or bodily fluid in the vertical direction and the oblique direction. In the case of embossing, the compression section and the non-compression section may be continuous or discontinuous.

A diffusion layer may be provided on at least a part of the absorber. By providing the diffusion layer, even if the space under the topsheet is not sufficiently provided due to the posture of the wearer,
It is possible to prevent leakage of urine, body fluid, and the like without reducing the absorption rate of urine, body fluid, and the like.

The diffusion layer is a hydrophilic liquid-permeable nonwoven fabric, woven fabric, porous plastic, floc pulp, or the like, and its component may be polypropylene, polyethylene, polyester, rayon, pulp, or a composite fiber thereof. There is no particular limitation. The diffusion layer is provided between the topsheet and the absorber, and is fixed to the absorber with an adhesive or the like.

The three-dimensional gather used in the present invention is formed of a three-dimensional gather sheet and a stretchable elastic body.

The material of the three-dimensional gather sheet is a hydrophilic or hydrophobic nonwoven fabric, woven fabric, porous plastic film or the like, or a liquid-impermeable film, or a laminate of these materials. May be a composite fiber composed of two or more components such as polypropylene, polyethylene, polyester, nylon, or polyester, polypropylene, polyethylene, nylon, etc. In particular, a composite fiber of polyester / polyester, polyester / polyethylene, or polypropylene / polyethylene has strength. However, there is no particular limitation.

As the elastic member, a thread-like, string-like, or flat-shaped elastic material such as natural rubber, synthetic rubber, or urethane is used depending on the installation position. The disposition of the elastic member is fixed to the sheet by an adhesive.

As the bonding method, a hot-melt, starch-based or water-soluble glue such as CMC (carboxymethylcellulose), a highly fluid adhesive, or welding by heat or ultrasonic waves may be used.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the absorbent article of the present invention will be described in detail with reference to the drawings, taking a disposable diaper as an example, but the present invention is not limited to these. The one shown in FIG.
It is a partially cutaway development top view of the disposable diaper of this invention. In FIG. 1, a diaper to be used has an absorber 3 disposed between a liquid-permeable top sheet 1 and a liquid-impermeable back sheet 2, and the top sheet 1 and the back sheet 2
The top sheet 1 is superimposed on the back sheet 2, and the whole is adhered so as to be integral with each other on the outer periphery (periphery), and the absorbent body 3 is included so as to form the absorbent main body 17. In the absorber 3, the first absorber 4 located at the center in the crotch becomes narrower, and the second absorbers 5 are arranged on both sides of the narrowed portion, A three-dimensional gather 6 to which a three-dimensional gather elastic body 9 is adhered in an extended state is provided along the longitudinal direction of the diaper to be used. Outside the both sides in the width direction of the absorber 3, side flaps are formed by a sheet formed by laminating the outermost layer sheet 15 and the separate sheet 14. Between the outermost layer sheet 15 and the separate sheet 14 formed by the flap portion, a leg-surrounding elastic body 7 is disposed in an extended state in order to prevent leakage of exudate from around the leg during wearing. Further, on the back flap portion, a waist elastic body 8 is provided in an extended state in order to improve the fit to the wearer's waist and prevent leakage of exudate from around the waist. In addition, a fastening tape 10 is provided in order to allow the wearer to easily remove the wearable diaper.

The width of the first absorber 4 at the crotch is 30 mm
Above is 300 mm or less, preferably 50 mm or more and 200 mm or less. The width of the first absorbent core 4 at the crotch portion varies depending on the body type of the wearer and the type of the absorbent article, but it is necessary that the width be such that the fit at the crotch portion of the wearer is enhanced. In addition, the width of the second absorber 5 at the crotch portion is 5 mm or more and 100 mm or less, and preferably 10 mm or more and 80 mm or less. When the width at the crotch of the second absorber 5 is larger than 100 mm, the three-dimensional gathers 6 arranged on the side thereof make it difficult for the second absorber 5 to rise to the side of the first absorber 4 and less than 5 mm. Then, the effect of preventing leakage in the crotch lateral direction is lost. On the other hand, in the drawings, the first absorber 4 and the second absorber 5 are covered with the same top sheet 1, but may be covered with different top sheets 1 respectively, and there is no particular limitation.

In the drawing, the three-dimensional gathers 6 are provided in a pair along the side of the absorber 3 over the entire surface in the longitudinal direction, but may be provided at least in a part including the crotch portion. However, a plurality of sets may be provided. When a plurality of assembly gathers 6 are provided, the second and subsequent sets may be on the absorbent main body 17, but may be on the outermost layer sheet 15, or both. Also, the standing point 11 of the three-dimensional gather may be on the absorber 3,
It may be located on the side of the absorber 3 or may be disposed over both. Also, a three-dimensional gather 6 that includes an elastic body in a sheet extending to the side of the absorber 3 may be used. further,
The free edge 12 of the three-dimensional gather may be partially fixed to the standing point 11, but may not be fixed,
There is no particular limitation. Also, when fixed, the upright 11
It may be inside or outside, and may be on the standing point 11.
The standing points 11 of the three-dimensional gathers may be parallel or non-parallel. The height of the weir 13 of the three-dimensional gather 6 may be constant along the longitudinal direction of the absorbent article, but may be changed. The height of the weir 13 of the three-dimensional gather is 5 mm or more and 100 mm or less at the crotch part, and is preferably 10 m.
m or more and 60 mm or less. When the height of the weir 13 of the three-dimensional gathers is less than 5 mm, the elastic body 9 disposed in the extended state becomes difficult to shrink, the three-dimensional gathers 6 become difficult to stand up, and the second absorber does not stand up. Further, if the height of the weir 13 of the three-dimensional gather is larger than 100 mm, the upper surface of the absorber 3 is covered depending on the wearing method and posture of the wearer, and excrement is absorbed on the three-dimensional gather and absorbed. May leak out of the box. That is, it is a configuration of the well-known three-dimensional gather 6 that is usually used for a conventional disposable diaper and other absorbent articles, and is not particularly limited.

The sheet forming the three-dimensional gathers 6 may be the top sheet 1 on the upper surface of the absorber 3, the sheet below the absorber 3, or a sheet of another member. Further, the sheets forming the three-dimensional gathers 6 do not need to be composed of a single sheet, but may be a combination of these sheets.
When laminating a plurality of sheets, a space may be formed in the three-dimensional gather 6.

In the drawing, one elastic body 9 of the three-dimensional gather is provided at one end of the free edge 12 of the three-dimensional gather.
The elastic body 9 of the three-dimensional gather may be disposed at the end of the free edge 12 or at the vicinity thereof.
Although only books may be provided, a plurality of books may be provided, and there is no particular limitation.

FIG. 2 is a perspective view of the disposable diaper of FIG. In FIG. 2, an absorbent body 3 for a disposable diaper is formed of a first absorbent body 4 having a narrow width at a crotch portion and second absorbent bodies 5 arranged on both sides thereof. 3
The gathers 6 are arranged on the sides of. The second absorber 5 is separated from the outermost sheet 15 together with the three-dimensional gathers 6 and rises to the side of the first absorber, substantially raising the crotch weir and enhancing the fit of the wearer's crotch. At the same time, the absorption power of the absorbent article in the crotch lateral direction is increased to prevent the flow and leakage of urine and excrement. Also, the second absorber 5 and the three-dimensional gathers 6 stand apart from the outermost layer sheet 15 to rise, so that the outermost layer sheet 15 and the second absorber 6
A pocket 16 is formed between the three-dimensional gathers 6 to temporarily hold the excrement that has passed over the three-dimensional gather 6, thereby preventing leakage from the absorbent article.

FIG. 3 is a sectional view taken along line XX 'of the disposable diaper of FIG. In FIG. 3, the absorber 3 is a topsheet 1
And the backsheet 2 to form an absorbent main body 17. The top sheet 1 and the back sheet 2 are bonded together at the side of the absorber 3, but are also bonded at the boundary between the first absorber 4 and the second absorber 5. The three-dimensional gathers 6 arranged on the side of the absorber 3 are formed of the topsheet 1. The leg elastic body 7 is provided between the outermost sheet 15 and the separate sheet 14. The outermost layer sheet 15 and the separate sheet 14 may be liquid-permeable materials, but may be liquid-impermeable materials, and are not particularly limited. However, when the absorbent article of the present invention is used as a diaper by using the absorbent article, the separate sheet 14 that directly touches the wearer's skin is preferably a soft nonwoven fabric or woven fabric. The absorbent main body including the absorbent body 3 and the sheet including the outermost layer sheet 15 only need to be adhered to at least a part of the first absorbent body 4 at the crotch portion, and need not necessarily be the entire lower surface of the first absorbent body 4. Absent. Therefore, in the drawing, the laminated sheet of the outermost layer sheet 15 and the separate sheet 14 is disposed over the entire width direction of the used diaper, but is necessarily disposed over the entire lower part of the first absorber 4. However, it suffices if there is an overlapping portion that adheres to at least a part of the first absorber 3. The bonding method is not particularly limited as long as they do not separate from each other. On the other hand, at least in the crotch part, the lower part of the second absorber 5 is not bonded to the sheet including the outermost layer sheet 15.

FIG. 4 is a sectional view taken along the line XX 'of the disposable diaper of FIG. 1, which is another embodiment different from FIG. In FIG. 4, the absorbent main body 17 is different from the topsheet 1 and the separate sheet 1.
4 ′ and the absorber 3, and the back sheet 2 is an outermost layer sheet. In the absorbent article of the present invention, the absorbent body 3 may be disposed between the top sheet 1 and the back sheet 2, and as shown in FIG.
7, but the outermost sheet 1 as shown in FIG.
It may be arranged on the fifth side, or may be arranged on both sides. In the drawing, the absorber 3 is present between the topsheet 1 and the separate sheet 14 ', but may be wrapped by the topsheet 1. In addition, although two separate sheets are provided in addition to the top sheet 1 and the back sheet 2, more sheets may be provided, and there is no particular limitation.

FIG. 5 shows another embodiment different from FIGS. 3 and 4.
It is XX 'line sectional drawing of the disposable diaper of FIG. FIG.
In the above, the absorbent main body 17 is composed of the topsheet 1 and the absorber 3, and the first absorber 4 is directly
5 is fixedly joined. Further, the separate sheet 14 is not disposed over the entire surface of the diaper in the width direction of the used diaper, but is disposed only at the position where the leg elastic body 7 and the second absorber 5 are disposed. The second absorber 5 is wrapped around the topsheet 1, and the three-dimensional gathers 6 are formed of separate sheets. In the drawing, the second absorber 5 is wrapped around the topsheet 1, but may be between the topsheet 1 and a sheet made of a separate material. Also, a separate sheet 14 may be disposed below the first absorber 4, and the top sheet 1
Alternatively, a separate sheet may be provided. That is,
In the absorbent article of the present invention, at least the first absorbent body 4 only needs to be present between the top sheet 1 and the back sheet 2, and the sheet may be overlapped therebetween or outside thereof.
There is no particular need for the leakage prevention effect. On the other hand, the second absorber 5 needs to be covered with a sheet separate from the outermost layer sheet 15 in order to stand up from the outermost layer sheet 15 so as to stand up. However, the sheet covering the lower part is not particularly limited. When the absorbent article of the present invention is used as a diaper, the separate sheet 14 that directly touches the wearer's skin is preferably a soft nonwoven fabric or a woven fabric. What is necessary is just to arrange | position at least the site | part which contacts a wearer's skin, and what is necessary is just to exist to the part which concerns on the 2nd absorber 5.

FIG. 6 is a sectional view taken along the line XX 'of another embodiment different from FIGS. 3, 4 and 5 in a state where the second absorber of the disposable diaper of FIG. 1 is standing up. is there. In FIG. 6, the second absorber 5 together with the three-dimensional gathers 6 is separated from the outermost layer sheet 15, rises on the side of the first absorber 4, substantially raises the crotch weir, and starts from the crotch. It prevents leakage of urine and excrement. Furthermore, since the first absorber 4 is narrow at the crotch portion, the fit is good, while the second absorber 5 is disposed, so that the absorbing power of the crotch portion is not reduced, and the first absorber 4 is preferably provided. Used diapers have become used. When the second absorber 5 rises, a pocket 16 is formed between the second absorber 5 and the outermost layer sheet 15 so that the excrement that has passed through the three-dimensional gather 6 is temporarily held so as not to leak outside. You can do it.

FIG. 7 is a plan view of the shape of the first absorber 4 and the second absorber 5 used. In FIG. 7, the second absorber 5
May be disposed only in the crotch portion as in (a) and (b), but as in (c), (d) and (e), over the entire longitudinal direction of the absorbent article It may be provided. Also,
As shown in (f), the first absorber 4 and the second absorber 5 may be substantially integrated instead of being separated. Further, although not shown, a form in which the second absorber 5 is disposed only on one side of the back and belly of the crotch may be used.

In the drawing, the first absorber 4 and the second absorber 5 are separated by a slit-shaped cutout, but a concave embossed line is provided at the boundary between the first absorber 4 and the second absorber 5. Only may be. The width of the slit portion and the embossed portion serving as the boundary between the first absorber 4 and the second absorber 5 is 1 mm or more and 50 mm or less, preferably 2 mm or more and 15 mm or less, and the width is uniform by each part of the absorber 3. There is no particular need. When the width of the slit portion and the embossed portion is narrow, the rise of the three-dimensional gathers 6 becomes difficult to interlock, and when the width of the slit portion is too wide, the amount of the absorber 3 in the crotch portion decreases, so that the absorbing power of the crotch portion decreases. I do. Further, the first absorber 4 and the second absorber 5 may be wrapped with separate hydrophilic sheets, or may be wrapped with the same hydrophilic sheet and integrated.

The first absorbent member 4 and the second absorbent member 5 may have the same pulp basis weight, SAP density and layer constitution, but may have different pulp basis weights, SAP density and layer constitution. Is not particularly limited. Further, a diffusion layer may be provided. The diffusion layer may be provided on the entire surface of the absorber 3 or may be provided on a part thereof. The first absorber 4 and the second absorber 5 may be arranged so as to extend over them, but they may be arranged separately or only one of them may be arranged.

[0038]

As described above, in the absorbent article of the present invention, the second absorbent body is provided on both sides of the first absorbent body disposed in the longitudinal central region of the absorbent article. By disposing three-dimensional gathers on both sides in the longitudinal direction opposite to the first absorber, the second absorber is separated from the outermost sheet together with the three-dimensional gathers, and rises to the side of the first absorber. , Substantially raising the crotch weir, increasing the fit of the wearer's crotch, preventing the flow and leakage of urine and excrement without lowering the absorption capacity of the crotch,
Form a pocket between the outermost layer sheet and the second absorber,
By temporarily holding the excrement that has passed over the three-dimensional gathers, it is possible to prevent leakage from the absorbent article and to be suitably used.

[Brief description of the drawings]

FIG. 1 is a partially cut-away development plan view of a disposable diaper of the present invention.

FIG. 2 is a perspective view of the disposable diaper of FIG.

3 is a sectional view taken along line X-X 'of the disposable diaper of FIG.

FIG. 4 is a sectional view taken along line XX ′ of the disposable diaper of FIG. 1 showing another embodiment different from FIG. 3;

FIG. 5 is a sectional view taken along line XX ′ of the disposable diaper of FIG. 1 showing another embodiment different from FIGS. 3 and 4;

FIG. 6 is a sectional view taken along line XX ′ of the disposable diaper of FIG. 1 showing another embodiment different from FIGS. 3, 4, and 5;

FIG. 7 is a plan view in the form of a first absorber and a second absorber.

[Explanation of symbols]

 1. 1. Liquid-permeable topsheet 2. Liquid-impermeable back sheet Absorber 4. First absorber 5. Second absorber 6. Solid gathers 7. Leg elastic body 8. Waist elastic body 9. Solid gather elastic body 10. Fastening tape 11. Standing point 12. Free edge 13. 3D gather weir Separate sheet 15. Outermost layer sheet 16. Pocket 17. Absorbent body

Claims (2)

[Claims] 1. An absorbent article comprising: an absorbent main body comprising at least a liquid-permeable top sheet and an absorbent; and an outermost layer sheet to which a part of the absorbent main body is joined.
The absorbent body, a first absorbent body arranged in the longitudinal central region of the absorbent article, at least on both sides of the crotch of the first absorbent body, a pair of provided at a position away from the first absorbent body Consisting of a second absorber, three-dimensional gathers are further disposed on both sides in the longitudinal direction opposite to the first absorber of the second absorber, and the second absorber together with the three-dimensional gathers from the outermost sheet An absorbent article characterized by being erected on the side of the first absorbent body after being separated. 2. A first absorber having a narrower width at the crotch portion of the absorber, and a pair of second absorbers provided at positions separated from the first absorber on both sides of the narrowed portion. The absorbent article according to claim 1, which has a body.