JP2005287792A - Absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article such as an incontinence pad or a urine pad in which an erected state of three-dimensional gather is stably maintained, and urine is surely held and absorbed. <P>SOLUTION: The absorbent article consists of an absorber 3 located between a top sheet 1 and a back sheet 2, and a three-dimensional gather 4 covering the back sheet 2 along longitudinal direction near both sides of the absorber 3 in the longitudinal direction. The back sheet 2 is rolled up in the width direction of the three-dimensional gather 4, an absorbent 5c composed of polymers or the like is fixed to nonwoven fabric 5a with water-soluble adhesive 5b such as water-soluble hot melt adhesive, the nonwoven fabric 5a fixed with absorbent 5c is inserted into the three-dimensional gathers 4, and by this structure, the erected state of the three-dimensional gather 4 is maintained, and urine is held securely. Because the absorbent 5c is fixed to the nonwoven fabric 5a in the water-soluble adhesive 5b, while the absorbent 5c is fluidized with urine in the inside of the three-dimensional gather 4, urine is held securely. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to absorbent articles such as disposable incontinence pads and urine pads.

  Conventionally, for example, Japanese Patent Application Laid-Open No. 2000-271169 has proposed an absorbent article in which an absorbent body made of an absorbent polymer is inserted into a three-dimensional gather.

JP 2000-271169 A

  Accordingly, an object of the present invention is to provide an absorbent article such as an incontinence pad or a urine pad that stably holds the standing state of a three-dimensional gather, reliably dams urine, and absorbs urine sufficiently. To do.

The present invention of claim 1 includes a liquid-permeable top sheet,
A backsheet,
An absorber interposed between the top sheet and the back sheet;
A three-dimensional gather covering the back sheet along the longitudinal direction in the vicinity of both sides in the longitudinal direction of the absorber,
The back sheet is wound in the width direction of the three-dimensional gather,
The absorbent article is characterized in that an absorbent material is fixed to a nonwoven fabric constituting the three-dimensional gather with a water-soluble adhesive.
A second aspect of the present invention is the absorbent article according to the first aspect, wherein the nonwoven fabric to which the absorbent material is fixed is inserted into the three-dimensional gather to hold the three-dimensional gather upright and dam the urine.
The present invention according to claim 3 is the absorbent article according to claim 1, wherein the absorbent substance absorbs the urine while being fluidized by the urine inside the three-dimensional gather.

According to the present invention of claim 1, as shown in FIGS. 2 and 3, the absorbent material 5 c is fixed to the nonwoven fabric 5 a constituting the three-dimensional gather 4 with a water-soluble adhesive 5 b such as a water-soluble hot melt adhesive. Is done. For this reason, according to this invention of Claim 2 which hold | maintains the standing state of the solid gather 4 stably and dams up urine reliably, the nonwoven fabric 5a to which the absorptive substance 5c was fixed is inserted in the solid gather 4 inside. The three-dimensional gather 4 is kept standing and the urine is reliably dammed up.
According to the third aspect of the present invention, the absorbent material 5c is fixed to the nonwoven fabric 5a with a water-soluble adhesive 5b such as a hot-melt adhesive. Therefore, as shown in FIG. It absorbs urine with sufficient certainty while being fluidized by urine inside.

  Hereinafter, the present invention will be described with reference to the drawings based on the embodiments.

As FIG. 1 and FIG. 2 show, the absorbent article 6 of Example 1 of this invention is the liquid-permeable topsheet 1 which consists of a nonwoven fabric etc., only a poly sheet, a poly sheet and a nonwoven fabric, or only a nonwoven fabric. It is the structure which interposed absorbers 3, such as cotton-like pulp, between back sheets 2 which consist of. The paper diaper type that is the subject of the present invention may be either a tape-type paper diaper or a pants-type paper diaper, and the person to be worn may be an adult or a baby. Hereinafter, the absorbent article 6 will be described in detail.
As shown in FIG. 1, the absorbent body 3 is formed in a square shape, but may be a substantially hourglass shape according to the wearing situation. The width dimension is a dimension width that does not give the wearer a feeling of stickiness by hitting the crotch portion. The absorber 3 is surrounded by crepe paper (not shown) in order to maintain the shape and improve the diffusibility of body fluid that has passed through the top sheet 1.

As the top sheet 1 covering the surface side (skin contact surface side) of the absorbent body, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. The material fibers that make up the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. When a large number of through holes are formed in the top sheet 1, urine and the like are quickly absorbed and the dry touch properties are excellent.

As shown in FIG. 2, the back sheet 2 covers the back surface side (non-skin contact surface side) of the absorbent body 3, and both side portions are wound around the front surface side of the absorbent article 6. It extends to a predetermined position in the middle of the direction. As the material of the back sheet 2, a plastic sheet such as polyethylene or polypropylene is used. In recent years, a material having moisture permeability is preferably used from the viewpoint of prevention of stuffiness. This water barrier / moisture permeable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. If the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, which is superior in terms of flexibility. At the front end portion 11 and the rear end portion 12 of the back sheet 2 made of only a policy sheet, a poly sheet and a non-woven fabric, or a non-woven fabric, end flap portions 11a and 12a where the absorbent body 3 does not exist are formed. Side flap portions 11b and 12b where the body 3 does not exist are formed.

The both sides of the surface side of the absorbent article 6 of Example 1 of the present invention cover the side part of the top sheet 1 and up to a predetermined width position so as to cover the back sheet 2 beyond the side edge of the back sheet 2. An extending three-dimensional gather 4 is provided. That is, the inner side of the three-dimensional gather 4 is folded back twice, the elastic stretchable member 8 is disposed at the folded portion, and the inner sheet portion stands on the surface side using the stretchable force of the elastic stretchable member 8. It is like that. This elastic expansion / contraction member 8 is for eliminating gaps around the legs and eliminating leakage.
Further, the nonwoven fabric 5a constitutes a three-dimensional gather 4, and as shown in FIGS. 2 and 3a, an absorbent material 5c such as a polymer is fixed to the nonwoven fabric 5a with a water-soluble adhesive 5b such as a water-soluble hot melt adhesive. The non-woven fabric 5a to which the absorbent material 5c is fixed is inserted into the three-dimensional gather 4, and the three-dimensional gather 4 is kept upright and the urine is reliably dammed. As shown in FIG. 3b, there is no nonwoven fabric 5a, the solid gather 4 itself is made of a nonwoven fabric, and an absorbent material 5c such as a polymer is fixed to the solid gather 4 with a water-soluble adhesive 5b such as a water-soluble hot melt adhesive. There is also a case.
Further, since the absorbent material 5c is fixed to the nonwoven fabric 5a with a water-soluble adhesive 5b such as a hot melt adhesive, the absorbent material 5c is fluidized by urine inside the three-dimensional gather 4 as shown in FIG. Absorb urine sufficiently. This water-soluble adhesive 5b is an adhesive whose adhesive strength is weakened by contact with body fluids, for example, a water-dispersed hot melt adhesive mainly composed of polyvinyl alcohol, polyalkylene oxide, etc., starch starch, carboxy It consists of a water-soluble adhesive such as methylcellulose.
In addition, the absorbent material 5c such as a polymer swells with urine, and the three-dimensional gather 4 swells to easily fit the human body 7.

The present invention is an absorbent article such as an incontinence pad, a urine pad, etc. The diaper model to be worn may be either a tape diaper or a pant diaper, and the wearer may be an adult or a baby. Is also applicable. In addition, the absorbent article alone can be used for male urination.

It is a perspective view of Example 1 of the present invention. FIG. 2 is a cross-sectional view taken along the line BB of Example 1 in FIG. 1. It is a partial expanded sectional view of Example 1 of FIG. It is a partial expanded sectional view of Example 1 of FIG. It is a partial expanded sectional view of the use condition of Example 1 of this invention.

Explanation of symbols

1 Top sheet 2 Back sheet 3 Absorber
4 Solid gather 5a Non-woven fabric 5b Water-soluble adhesive
5c Absorbent substance 6 Absorbent article 7 Human body

Claims (3)

A liquid-permeable topsheet,
A backsheet,
An absorber interposed between the top sheet and the back sheet;
A three-dimensional gather covering the back sheet along the longitudinal direction in the vicinity of both sides in the longitudinal direction of the absorber,
The back sheet is wound in the width direction of the three-dimensional gather,
An absorptive article, wherein an absorptive substance is fixed to a nonwoven fabric constituting the three-dimensional gather with a water-soluble adhesive. The absorbent article according to claim 1, wherein the nonwoven fabric to which the absorbent substance is fixed is inserted into the three-dimensional gather, and the three-dimensional gather is held up to hold urine. The absorbent article according to claim 1, wherein the absorbent material absorbs the urine while being fluidized by the urine inside the three-dimensional gather.

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