JP6878755B2 - Absorbent auxiliary pad - Google Patents

Description

The present invention relates to a low cost absorbent auxiliary pad capable of appropriately preventing leakage of loose stool.

In general, adult disposable diapers include tape-stopping type and pants type, and these disposable diapers are appropriately selected and used according to the need for long-term care in excretion of the user. These absorbent articles are composed of a liquid permeable top sheet, a liquid permeable back sheet, and an absorber arranged between the two sheets. By adopting such a configuration, body fluids such as urine permeate through the top sheet of the absorbent article and are absorbed by the absorber, and are prevented from leaking to the outside by the back sheet.

By the way, absorbent articles such as tape-stop type and pants-type disposable diapers may be used alone or in combination with a urine absorbing pad, but at present, they are used in combination with a urine absorbing pad. In most cases, the urine absorbing pad is used by stacking it on the top sheet. This is because the cost per disposable diaper is high, so after absorbing and holding excrement with a urine absorbing pad that is cheaper than tape-stopping type or pants type disposable diapers, replace only the urine absorbing pad. This is because even after excretion, it is not necessary to replace the more expensive tape-stopping type or pants-type disposable diapers, and the absorbent article can be used economically at a low cost.

Here, the urine collecting pad has various sizes and shapes depending on the amount of urine, and can surely absorb the excreted urine and prevent leakage. However, for loose stools, watery stools, and diarrheal stools (hereinafter referred to as loose stools), the absorbency is insufficient, and the loose stools may leak to the outside of the urine absorbing pad and the absorbent article. A urine absorbing pad aimed at preventing leakage has also been studied.

As a urine absorbing pad for the purpose of preventing leakage of loose stool, for example, in Patent Document 1, a urine absorbing pad provided with a top sheet, a back sheet, an absorber, and a three-dimensional gather, at least the front end of the crotch portion. A urine collecting pad characterized in that a cup portion recessed in a cup shape when viewed from the surface on the clothing side is provided in a portion extending laterally from the protruding portion of the three-dimensional gather within the range behind the urine. Is disclosed.

Japanese Unexamined Patent Publication No. 2014-45980

However, even with the urine absorbing pad described in Patent Document 1, when a large amount of loose stool is excreted, the loose stool leaks from the leaky part of the urine absorbing pad to an absorbent article such as a tape-stopping type disposable diaper, and further. Loose stool could leak into clothes and bedding from absorbent articles. In addition, the urine absorbing pad is used as an auxiliary for absorbent articles such as tape-stopping type disposable diapers, but it inevitably increases in size because it tries to prevent leakage of loose stool in a wide range. There is also a problem that the raw material cost becomes high and the user is not sufficiently satisfied in terms of cost. Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a low-cost absorbent article capable of appropriately preventing leakage of loose stool.

In view of the above problems, the inventors of the present invention have conducted diligent research. As a result, it is an absorbent auxiliary pad provided with an absorber or the like, and has a three-dimensional gather of a predetermined height only at one side end portion in the width direction of the absorbent auxiliary pad, and the top sheet has a three-dimensional gather. At the side end in the width direction which is not provided, the back sheet has a folded shape so as to wrap a part of the absorber and a part of the back sheet, and the back sheet has a side end in the width direction provided with three-dimensional gathers. A part that has a folded shape so that a part of the absorber is rolled up at the position on the clothing side of the top sheet on the inner side in the width direction from the three-dimensional gather, and the absorber has an adjusted texture and height. It has been found that the sexual assist pad can solve the above-mentioned problems, and the present invention has been completed. Specifically, the present invention provides the following.

(1) The first aspect of the present invention has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber arranged between the top sheet and the back sheet. Absorbent auxiliary pad placed at the end of the absorbent article, said absorbent auxiliary pad having water repellency or liquid impermeability only at one side end in the width direction of the absorbent auxiliary pad. The top sheet has a three-dimensional gather composed of a double sheet having the same, and the top sheet is such that a part of the absorber and a part of the back sheet are involved at a side end portion in the width direction without the three-dimensional gather. In addition, the back sheet has a folded shape, and the back sheet is a side end portion in the width direction provided with the three-dimensional gathers, and a part of the absorber is placed on the top in the width direction inside the three-dimensional gathers. The absorber has a folded shape so as to be rolled up at the position of the sheet on the clothing side, the absorber is provided with at least one linear slit in the longitudinal direction, and the absorber has a center line in the width direction and the above. A high-grained area with a high grain size located between the side ends in the width direction not provided with three-dimensional gathers, a low-grained area having a high grain size other than the high-grained area, and a low-sized area having a lower grain size than the high-grained area. The height of the high grain area is higher than that of the low grain area, and the height of the three-dimensional gather from the top sheet located on the body side of the high grain area is the height of the absorbent auxiliary pad. It is 20% or more with respect to the dimension in the width direction, and the dimension in the width direction of the high grain area is 10% or more and 50% or less with respect to the dimension in the width direction of the entire absorber, and the back. An absorbent auxiliary pad having a means for fixing to an absorbent article formed on the surface of the sheet on the clothing side.

(2) A second aspect of the present invention is the absorbent auxiliary pad according to (1), characterized in that the dimensions in the longitudinal direction and the width direction are 50 mm or more and 300 mm or less.

(3) A third aspect of the present invention is the absorbent auxiliary pad according to (1) or (2), wherein the height of the three-dimensional gather from the top sheet located on the body side of the high basis weight region. The height is 15 mm or more and 80 mm or less.

(4) A fourth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (3), wherein at least one of the three-dimensional gathers is provided on the free end side and the base end side. It is characterized by having a stretchable elastic member.

(5) A fifth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (4), wherein the high basis weight region is formed separately in the height direction. It is characterized by that.

(6) A sixth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (4), wherein the high basis weight region is integrally formed without being separated in the height direction. It is characterized by being done.

(7) A seventh aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (6), wherein the dimension in the width direction of the high basis weight region is 10 mm or more and 100 mm or less. It is characterized by that.
(8) An eighth aspect of the present invention is the absorbent auxiliary pad according to any one of (1) to (7), wherein the absorber contains an absorbent fiber and a highly absorbent polymer. The basis weight of the high grain area is 120% or more of the basis weight of the low grain area, the basis weight of the high grain area is 240 g / m 2 or more, and the basis weight of the low grain area is ^{240 g / m 2.} , 200 g / m ² or more, and the basis weight of the absorbent fiber contained in the high grain area is 30 g / m ² or more higher than the basis weight of the absorbent fiber contained in the low grain area. It is a thing.

The absorbent auxiliary pad of the present invention has a three-dimensional gather of a predetermined height composed of a double sheet having water repellency or liquid impermeable only at one side end in the width direction of the absorbent auxiliary pad. Have. Therefore, by arranging the absorbent auxiliary pad at the end of the absorbent article such as a tape-stopping type disposable diaper so that the three-dimensional gathers are in the outer peripheral direction of the absorbent article, the absorbent auxiliary pad is absorbed. It is possible to effectively prevent the leakage of loose stool while maintaining the sex. Further, the top sheet has a folded shape so as to wrap a part of the absorber and a part of the back sheet at the side end portion in the width direction which is not provided with the three-dimensional gathers. For this reason, loose stool that has migrated from the top sheet of the absorbent article can be absorbed not only from the body side surface of the absorbent auxiliary pad but also from the side end portion that does not have the three-dimensional gathers, which is more efficient. Can absorb loose stools. Further, the back sheet is a side end portion in the width direction provided with three-dimensional gathers, and is folded back so as to wrap a part of the absorber at the position on the clothing side of the top sheet inside the three-dimensional gathers in the width direction. Has a good shape. Therefore, it is possible to effectively prevent the loose stool transferred to the absorber from leaking to the outside of the absorbent auxiliary pad and the absorbent article.

Further, the absorber is a high basis weight area having a high basis weight and a high basis weight area located between the center line in the width direction and the side end portion in the width direction having no solid gather, and is a high basis weight area. It is divided into a low basis weight area having a lower basis weight than the lower basis weight area, and the height of the high basis weight area is higher than that of the low basis weight area. By providing such a high basis weight region, the absorption performance is improved, loose stool can be dammed up, and leakage of loose stool can be prevented more effectively. By providing a high basis weight area between the center line in the width direction and the side end portion in the width direction not provided with three-dimensional gathers, the leakage of loose stool is particularly high when a large amount of loose stool is excreted at one time. Can be effectively prevented. Specifically, in the absorbent auxiliary pad of the present invention, a large amount of loose stool that has migrated from the top sheet of the absorbent article is initially received as a high basis weight area, so that a large amount of loose stool is once dammed. After that, the loose stool can be gradually absorbed, and the leakage of the loose stool from the absorbent auxiliary pad to the outside can be effectively prevented. Further, since the absorbent auxiliary pad of the present invention can be locally used for a leakable portion of the absorbent article, the size can be reduced as compared with the conventional absorbent article, and the raw material cost can be reduced. Can be suppressed. Therefore, according to the present invention, leakage of loose stool can be appropriately prevented and cost reduction can be realized.

It is a drawing which shows the plan view of the absorption auxiliary pad of this invention. It is a drawing which shows the X _1- X ₁ cross-sectional view of FIG. It illustrates a X ₁ -X ₁ cross-sectional view is another embodiment of FIG. It is a figure which shows the use example of the absorption auxiliary pad of this invention.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. The same elements are designated by the same reference numerals throughout the description of the embodiments of the present invention.

In the description of the present specification, the time when the absorbent auxiliary pad 1 is worn means at least one of the time when the absorbent auxiliary pad 1 is worn and the time after wearing the absorbent auxiliary pad 1. The longitudinal direction of the absorbent auxiliary pad 1 is a direction parallel to the three-dimensional gather 50 described later, and is a direction indicated by reference numeral Y in the drawing. The width direction of the absorbent auxiliary pad 1 is a direction laterally or orthogonal to the longitudinal direction, and is a direction indicated by reference numeral X in the drawing. Further, the body-side surface is the surface of the front and back surfaces of each member such as the absorber 40 that is arranged on the wearer's skin side when worn, and the clothing-side surface is the surface of each member such as the absorber 40. Of the front and back sides, this is the side that faces the wearer's skin side when worn.

<Absorbable auxiliary pad>
1 is a drawing showing a plan view of the absorbent auxiliary pad 1 of the present invention, FIGS. 2 and 3 are drawings showing a cross-sectional view of the absorbent auxiliary pad 1 of the present invention, and FIG. 4 is a drawing showing a sectional view of the absorbent auxiliary pad 1 of the present invention. It is a drawing which shows the use example of. As shown in FIGS. 1, 2 and 3, the absorbent auxiliary pad 1 is arranged between the liquid-permeable top sheet 20, the liquid-impermeable back sheet 30, and the top sheet 20 and the back sheet 30. The absorbent body 40 and the three-dimensional gather 50, which will be described later, are provided only at one side end of the absorbent auxiliary pad 1 in the width direction, and are attached to the end of the absorbent article 100 such as a tape-stopping type disposable diaper. It is to be placed. The absorbent auxiliary pad 1 is suitable for use in combination with the absorbent article 100 regardless of whether it is for infants or adults. As shown in FIG. 4, by arranging the absorbent auxiliary pad 1 at the end of the absorbent article 100 so that the three-dimensional gather 50 faces the outer peripheral direction of the absorbent article 100, the leakage of loose stool is effective. Can be prevented.

The shape of the absorbent auxiliary pad 1 is not particularly limited, but the absorbent auxiliary pad 1 is arranged at the end of the absorbent article 100 to effectively prevent leakage of loose stool, and is therefore substantially rectangular or abbreviated. It is preferably square. The dimensions of the absorbent auxiliary pad 1 in the longitudinal direction and the width direction are preferably 50 mm or more and 300 mm or less, and more preferably 100 mm or more and 250 mm or less. By setting the dimensions in the longitudinal direction and the width direction of the absorbent auxiliary pad 1 to the above range, the absorbent auxiliary pad 1 is adapted to the type and size of the absorbent article 100 to which the absorbent auxiliary pad 1 is fixed. It is possible to reduce the cost if necessary.

[Top sheet]
The top sheet 20 allows body fluids to quickly pass toward the absorber 40, and is arranged so as to face the back sheet 30 with the absorber 40 interposed therebetween. Since the top sheet 20 is a sheet that comes into contact with the skin, the top sheet 20 has properties such as polypropylene, polyethylene, polyethylene terephthalate, and rayon that have a soft feel and do not irritate the skin. Non-woven fabric obtained by known processing methods such as air-through method, thermal bond method, spunlace method, spunbond method, etc. using recycled fibers such as cotton and natural fibers such as cotton, openable films such as open polyethylene film, urethane. A foamed film such as foam can be used. The top sheet 20 may be a single layer or a plurality of layers may be laminated, and a large number of through holes may be formed in order to impart dry touch.

The basis weight of the top sheet 20 is preferably ^{15 g / m 2} or more and 200 g / m ^{2 or less from the viewpoint of workability and strength.} Lotions, antioxidants, anti-inflammatory components, pH regulators, antibacterial agents, moisturizers and the like may be applied to the top sheet 20 in order to reduce irritation to the skin. The shape of the top sheet 20 is not particularly limited, but is preferably a substantially rectangular shape or a substantially square shape according to the shape of the absorbent auxiliary pad 1.

In the present invention, the top sheet 20 has a folded shape so as to wrap a part of the absorber 40 and a part of the back sheet 30 at the side end portion in the width direction not provided with the three-dimensional gather 50. There is. Since the top sheet 20 has such a folded shape, the loose stool that has migrated from the top sheet of the absorbent article 100 is not provided with not only the body side surface of the absorbent auxiliary pad 1 but also the three-dimensional gather 50. It can also be absorbed from the side end, and loose stool can be absorbed more efficiently.

[Backsheet]
For the back sheet 30, a sheet material having liquid impermeableness and water impermeability is used so that body fluid does not leak to the outside of the absorbent auxiliary pad 1, but it has moisture permeability to prevent stuffiness. May be good. Examples of the material of the back sheet 30 having such characteristics include a thin plastic sheet such as a polyethylene sheet or a polyethylene laminated non-woven fabric. The shape of the back sheet 30 is not particularly limited, but is preferably a substantially rectangular shape or a substantially square shape according to the shape of the absorbent auxiliary pad 1. The basis weight of the back sheet 30 is preferably ^{15 g / m 2} or more and 40 g / m ^{2 or less from the viewpoint of workability and strength.}

In the present invention, the back sheet 30 is a side end portion in the width direction provided with the three-dimensional gather 50, and a part of the absorber 40 is positioned on the clothing side of the top sheet 20 inside the three-dimensional gather 50 in the width direction. It has a folded shape so that it can be rolled up with. When the back sheet 30 has such a folded shape, it is possible to effectively prevent loose stool transferred to the absorber 40 from leaking to the outside of the absorbent auxiliary pad 1 and the absorbent article 100.

(Fixing means)
The absorbent auxiliary pad 1 has a fixing means 31 formed on the clothing side surface of the back sheet 30 for fixing the absorbent auxiliary pad 1 to the absorbent article 100 when the absorbent auxiliary pad 1 is attached. The base material of the fixing means 31 is not particularly limited, but a mechanical hook tape, an adhesive tape, and an adhesive can be used. Further, a release sheet for protecting the fixing means 31 may be provided, and this release sheet may be integrated with the packaging sheet of the absorbent auxiliary pad 1.

[Absorber]
The absorber 40 is a region other than the high basis weight region 41 and the high basis weight region 41 located between the center line in the width direction and the side end portion in the width direction not provided with the three-dimensional gather 50, and is high. It is divided into a low basis weight area 42 having a lower basis weight than the basis weight area 41, the height of the high basis weight area 41 is higher than that of the low basis weight area 42, and the dimension in the width direction of the high basis weight area 41 is that of the absorber 40. It is 10% or more and 50% or less with respect to the dimension in the entire width direction. By providing such a high basis weight region 41, the absorption performance is improved, loose stool can be dammed up, and leakage of loose stool can be prevented more effectively. By providing the high basis weight region 41 between the center line in the width direction and the side end portion in the width direction not provided with the three-dimensional gather 50, the loose stool is excreted especially when a large amount of loose stool is excreted at one time. Leakage can be effectively prevented. Specifically, in the absorbent auxiliary pad 1 of the present invention, the region for first receiving a large amount of loose stool that has migrated from the top sheet of the absorbent article 100 is the high basis weight region 41, so that the large amount of loose stool is large. After damming once, loose stool can be gradually absorbed, and leakage of loose stool from the absorbent auxiliary pad 1 to the outside can be effectively prevented.

Further, the mode of the high basis weight region 41 is not particularly limited, but may be formed separately in the height direction as shown in FIG. 2, and may be integrally formed without being separated in the height direction as shown in FIG. It may be formed as. Further, from the viewpoint of absorption performance, the dimension of the high basis weight region 41 in the width direction is preferably 10 mm or more and 100 mm or less.

The absorber 40 preferably contains an absorbent fiber and a highly absorbent polymer (SAP), and the basis weight of the high basis weight region 41 is 120% or more with respect to the basis weight of the low basis weight region 42. Is preferable. Further, the basis weight of the high basis weight area 41 ^{is preferably 240 g / m 2} or more, and the basis weight of the low basis weight area 42 is preferably 200 g / m ² or more. Further, it is preferable that the basis weight of the absorbent fiber contained in the high basis weight region 41 is 30 g / m ^{2 or more higher than the basis weight of the absorbent fiber contained in the low basis weight region 42.} By adjusting the basis weight of the high basis weight region 41 and the absorbent fibers contained therein as described above, the absorption performance of the absorbent auxiliary pad 1 can be further improved.

The absorbent fiber is not particularly limited as long as it is generally used for absorbent articles such as sanitary napkins, disposable diapers, and urine absorbing pads. For example, fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, and hydrophilic fiber are used. Examples include rayon. Among these, it is preferable to use fluff pulp from the viewpoint of absorbability. Examples of such fluff pulp include those obtained by defibrating wood pulp, synthetic fiber, polymer fiber, non-wood pulp and the like into a cotton-like shape. The absorbent fiber of the absorber 40 preferably has a basis weight of ^{100 g / m 2} or more and 800 g / m ² or less so as not to impair the absorption performance and the touch.

The highly absorbent polymer of the absorber 40 is not particularly limited as long as it can absorb body fluids and prevent backflow, and is a sodium polyacrylate-based copolymer, a polyaspartate-based copolymer, ( Those formed from materials such as a starch-acrylic acid) graft copolymer, a (acrylic acid-vinyl alcohol) copolymer, a (isobutylene-maleic anhydride) copolymer and a saponified product thereof can be used. Among these, a sodium polyacrylate-based copolymer is preferable from the viewpoint of the amount of absorption per weight. The SAP amount of the absorber 40 is preferably a basis weight of ^{50 g / m 2} or more and 500 g / m ² or less so as not to impair the absorption performance and the touch. Further, from the viewpoint of the absorption rate and the absorption amount, the weight of SAP with respect to the weight of the absorber 40 is preferably 15% by mass or more and 50% by mass or less.

In the absorber 40, the morphology of the absorbent fiber and the SAP may be one formed by mixing SAP particles in the absorbent fiber, or a SAP sheet in which the SAP particles are fixed between the absorbent fibers. preferable. Further, for the purpose of preventing leakage of SAP particles and stabilizing the shape of the absorber 40, it is preferable to wrap the absorber 40 in a carrier sheet. The base material of the carrier sheet may be any one having hydrophilicity, and examples thereof include hydrophilic non-woven fabrics such as tissues, absorbent papers, and air-laid non-woven fabrics. When a plurality of carrier sheets are provided, the base materials of the carrier sheets may be the same or different.

Further, in order to further improve the absorption performance, the content of the absorbent fiber is preferably 60% by mass or more and 90% by mass or less for the composition of the portion higher than the low basis weight region 42 in the high basis weight region 41. The content of the highly absorbent polymer is preferably 10% by mass or more and 40% by mass or less. Further, in the high basis weight region 41, the portion higher than the low basis weight region 42 may be formed by laminating a plurality of absorbers, or a step may be formed in a deep region of the surface wire or mesh portion of the fiber stacking machine in the manufacturing process. It can also be formed by providing.

(slit)
In the present invention, the absorber 40 includes at least one slit 43 linear in the longitudinal direction of the absorbent auxiliary pad 1. By providing the slit 43, the absorbability of loose stool can be improved. From the viewpoint of improving absorbency, the longitudinal dimension of the slit 43 is preferably 20 mm or more and 270 mm or less, more preferably 70 mm or more and 220 mm, and the width direction dimension of the slit 43 is 5 mm or more and 40 mm or less. It is preferable to have. From the same viewpoint, the depth of the slit 43 is preferably 2 mm or more and 15 mm or less.

[Three-dimensional gather]
The absorbent auxiliary pad 1 has a three-dimensional gather 50 composed of a double sheet having water repellency or liquid impermeableness only at one side end portion in the width direction of the absorbent auxiliary pad 1. As shown in FIG. 4, the absorbent auxiliary pad 1 is arranged at the end of the absorbent article 100 so that the three-dimensional gather 50 faces the outer peripheral direction of the absorbent article 100. Leakage of loose stool can be effectively prevented while maintaining absorbency.

As the three-dimensional gather 50, a water-repellent or liquid-impermeable sheet formed of hydrophobic fibers, for example, a spunbonded non-woven fabric, a melt-blown non-woven fabric, or a polyethylene film can be used. A double-bonded version of two types of sheets is used. The basis weight of the three-dimensional gather 50 is preferably ^{15 g / m 2} or more and 100 g / m ^{2 or less from the viewpoint of workability and strength.} The three-dimensional gather 50 composed of the double sheets thus formed is arranged as shown in FIG. Specifically, the outer sheet of the three-dimensional gather 50 is fixed to the back sheet 30, the inner sheet of the three-dimensional gather 50 is fixed to the top sheet 20, and the portion not fixed to the top sheet 20 and the back sheet 30 is a free end. As such, the three-dimensional gather 50 is arranged on the absorbent auxiliary pad 1.

In the present invention, the height of the three-dimensional gather 50 from the top sheet 20 located on the body side of the high basis weight region 41 is 20% or more with respect to the dimension in the width direction of the absorbent auxiliary pad 1, and this range is set. Assuming that it is satisfied, it is preferably 15 mm or more and 80 mm or less. When the height of the three-dimensional gather 50 satisfies the above condition, it is possible to effectively prevent the leakage of loose stool from the absorbent auxiliary pad 1.

(Expandable elastic member)
Further, the three-dimensional gather 50 preferably has at least one elastic elastic member 51 on the free end side and the base end side along the longitudinal direction. By providing the stretchable elastic member 51 along the longitudinal direction, the three-dimensional gather 50 has an upright property and can be deformed according to the wearer's body shape, and the fit is improved, so that loose stool leakage is effective. Can be prevented. As the stretchable elastic member 51, for example, a polyurethane thread, a strip-shaped polyurethane film, a thread-shaped or strip-shaped natural rubber, or the like is used.

It is preferable that the free ends of the three-dimensional gather 50 are fixed on the top sheet 20 at both ends of the absorbent auxiliary pad 1 in the longitudinal direction. Therefore, the inner side surface of the three-dimensional gather 50 is the top sheet. It is preferably joined to the body side surface of 20. As a result, the three-dimensional gather 50 stands up only at the portion excluding both ends in the longitudinal direction.

<Manufacturing method of absorbent auxiliary pad>
The method for manufacturing the absorbent auxiliary pad 1 is not particularly limited, and a conventionally known method can be adopted. For example, the three-dimensional gather 50 is arranged on the top sheet 20 in advance, and the absorber 40 divided into the high basis weight area 41 and the low basis weight area 42 is sandwiched between the top sheet 20 and the back sheet 30. Then, the top sheet 20 and the back sheet 30 are fixed to the surface of the back sheet 30 on the clothing side by using a hot melt adhesive, heat embossing, ultrasonic embossing, high frequency embossing, or the like over a part or the entire circumference. 31 is formed.

Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope of the invention described in the above embodiments. It will be apparent to those skilled in the art that improvements can be made. Further, it is clear from the description of the scope of claims that the form to which such a modification or improvement is added may be included in the technical scope of the present invention.

1 Absorbent auxiliary pad 20 Top sheet 30 Back sheet 31 Fixing means 40 Absorber 41 High basis weight area 42 Low basis weight area 43 Slit 50 Three-dimensional gather 51 Stretchable elastic member 100 Absorbent article

Claims (8)

It has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber arranged between the top sheet and the back sheet, and has an absorbent property arranged at an end of an absorbent article. Auxiliary pad
The absorbent auxiliary pad has a three-dimensional gather composed of a double sheet having water repellency or liquid impermeable only at one side end portion in the width direction of the absorbent auxiliary pad.
The top sheet has a folded shape so as to wrap a part of the absorber and a part of the back sheet at a side end portion in the width direction without three-dimensional gathers.
The back sheet is a side end portion in the width direction provided with the three-dimensional gathers, and a part of the absorber is wound around the top sheet at a position on the clothing side inside the three-dimensional gathers in the width direction. , Has a folded shape,
The absorber is provided with at least one linear slit in the longitudinal direction.
The absorber is a high basis weight region having a high basis weight located between the center line in the width direction and the side end portion in the width direction not provided with the three-dimensional gather, and a region other than the high basis weight region, and the high basis weight. It is divided into a low basis weight area with a lower basis weight than the basis weight area.
The height of the high basis weight area is higher than that of the low basis weight area.
The height of the three-dimensional gather from the top sheet located on the body side of the high basis weight region is 20% or more with respect to the dimension in the width direction of the absorbent auxiliary pad.
The dimension in the width direction of the high basis weight region is 10% or more and 50% or less with respect to the dimension in the width direction of the entire absorber.
An absorbent auxiliary pad having a means for fixing to an absorbent article formed on the clothing side surface of the back sheet. The absorbent auxiliary pad according to claim 1, wherein the dimensions in the longitudinal direction and the width direction are 50 mm or more and 300 mm or less. The absorbent auxiliary pad according to claim 1 or 2, wherein the height of the three-dimensional gather from the top sheet located on the body side of the high basis weight region is 15 mm or more and 80 mm or less. The absorbent auxiliary pad according to any one of claims 1 to 3, wherein the three-dimensional gather has at least one stretchable elastic member on the free end side and one on the base end side. The absorbent auxiliary pad according to any one of claims 1 to 4, wherein the high basis weight region is formed separately in the height direction. The absorbent auxiliary pad according to any one of claims 1 to 4, wherein the high basis weight region is integrally formed without being separated in the height direction. The absorbent auxiliary pad according to any one of claims 1 to 6, wherein the dimension in the width direction of the high basis weight region is 10 mm or more and 100 mm or less. The absorber contains absorbent fibers and a highly absorbent polymer.
The basis weight of the high basis weight area is 120% or more of the basis weight of the low basis weight area.
The basis weight of the high basis weight area is 240 g / m ² or more.
The basis weight of the low basis weight area is 200 g / m ² or more.
The absorbency according to any one of claims 1 to 7, wherein the basis weight of the absorbent fiber contained in the high basis weight region is 30 g / m ^{2 or more higher than the basis weight of the absorbent fiber contained in the low basis weight region.} Auxiliary pad.

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