JP2565074Y2 - Disposable diapers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a disposable diaper capable of isolating stool from skin.

[0002]

2. Description of the Related Art Conventionally, in order to prevent excreted stool, especially loose stool containing water and diarrhea stool from spreading between the skin and the diaper and causing discomfort, the area of the absorbent body where the buttocks are located is used. 2. Description of the Related Art A diaper is known in which a concave portion is provided and stool is received in the concave portion.

[0003]

In this type of diaper, there are two types of diapers: a surface sheet indented in accordance with a concave shape, and a relatively large opening provided in the surface sheet by floating the surface sheet from the bottom of the concave portion. Some stools pass through and are intended to be received in the cavity formed by the recess. In these recesses,
Although the spread of stool can be suppressed, it is necessary to remove or compress a part of the material of the absorber to provide the concave portion, and in doing so, the absorption capacity of the absorber is reduced, The problem that the concave portion and its surroundings tend to be saturated with moisture and give the wearer an unpleasant wet feeling cannot be solved.

[0004] In view of the above, the present invention provides an air-permeable separator,
A through-hole larger than the opening provided in the topsheet is provided, and this sheet is interposed between the topsheet and the absorber to receive stool in the through-hole portion and not reduce the absorption capacity in that portion. By doing so, it is an object of the present invention to solve the problem of the conventional technology.

[0005]

In order to solve the above problems, the present invention presupposes a disposable diaper in which an absorbent is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet. In a diaper, a large number of apertures having an opening area of 25 to 100 mm ² are provided on a surface sheet of a part where the buttocks are located, and one opening area is 300 mm ² or more between the surface sheet of the part and the absorber. Having a through hole having a total area of 1000 mm ² or more and a thickness of 3
It is characterized in that a separator made of a foamable and flexible foam sheet having a thickness of at least mm is interposed.

[0006]

In the diaper constructed as described above, the stool is received from the large number of openings formed in the topsheet into the cavity formed by the large through-hole formed in the foam sheet. Moisture in the stool is absorbed by the absorber forming its bottom in the cavity.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the disposable diaper according to the present invention will be described below with reference to the attached drawings.

FIGS. 1 and 2 are a partially cutaway perspective view of the diaper 1 and a sectional view taken along line AA. In the diaper 1, an absorbent body 4 is interposed between a liquid-permeable top sheet 2 and a liquid-impermeable back sheet 3, and a separating piece 5 made of a foam sheet is provided between the absorbent body 4 and the top sheet 2. It is. Elongated thread rubbers 6 and 7 are adhered to both side edges of the diaper 1 and both end edges to have elasticity, and a tape fastener 10 is attached to both side edges of a back body portion. The front and back sheets 2 and 3 are closely adhered at the outer peripheral portion extending from the absorber 4.

The topsheet 2 is provided with a large number of openings 15 having an opening area of 25 to 100 mm ² at a portion where the buttocks from the crotch portion to the back body are located at the center in the width direction. Further, the separating piece 5 is made of a foamable flexible sheet material having a thickness of 3 mm or more, and has a large through hole 16 with an opening area of 1000 mm ² or more in the center area of the sheet. The peripheral wall 17 has a width of at least 5 mm or more, preferably at least 10 mm.
The through-hole 16 has an opening area of 300 mm.
^A plurality of through holes having a total of ² or more and a total of 1000 mm ² or more can be provided. The separating piece 5 is arranged such that the through hole 16 is located at the center in the width direction of the diaper 1 and below the many openings 15 of the top sheet 2 and / or the top sheet 2 and / or the top sheet 2.
Or intermittently adhering to the absorber 4 or separating pieces 5
The topsheet 2 and the absorber 4 are intermittently adhered around the periphery so that the position does not move. In the through-hole 16, the absorber 4 becomes the bottom, and the topsheet 2 is on the upper side of the separating piece 5 to close the through-hole 16, and the through-hole 16 becomes a cavity.

In the diaper 1 constructed as described above, when excreted stool, particularly loose stool or diarrhea stool with much water is received in the through hole 16 which is a cavity through the opening 15, the stool spreads between the skin and the diaper. Can be prevented, and the stool can be isolated from the skin. Further, in the through hole 16 and the vicinity thereof, the top sheet 2 on the upper surface thereof floats up from the absorber 4 by the separating piece 5, so that it is less humid and in a dry state. Moisture in the stool is absorbed by the absorber 4 from below the through hole 16. When the stool is hard, the peripheral wall 17 is compressed and deformed, and at the same time, the topsheet 2 is recessed into the through-hole 16 so that the stool can be received there.

In the diaper 1, the separating piece 5 can be formed in an appropriate shape so that its contour and cross-section in the thickness direction can easily fit in the buttocks and crotch portion. In addition, it is preferable to use a closed cell material. The separating piece 5 is used as the absorber 4
If the diaper 1 is covered too widely, the air permeability of the diaper 1 may be impaired. The top sheet 2 is a non-woven fabric or a perforated plastic film, the back sheet 3 is a plastic film, the absorber 4 is pulverized pulp or a mixture of pulverized pulp and a superabsorbent polymer. A soft urethane sponge or the like can be used. Further, the bonding in the present invention includes various kinds of joining of materials by an adhesive, a pressure-sensitive adhesive, and heat fusion.

[0012]

[Effects of the Invention] In the diaper according to the present invention, stool, especially loose stools having a high moisture content can be received in the hollow portion while being isolated from the skin, so that such stool can spread between the skin and the diaper. And the cavity and its surroundings can be kept relatively dry,
It does not reduce the absorption capacity at the site and give the wearer an unpleasant wet feeling. Further, in order to provide a hollow portion, it is only necessary to interpose a separating piece having a through hole between the absorber and the topsheet.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a disposable diaper according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Diaper 2 Top sheet 3 Back sheet 4 Absorber 5 Separation piece 15 Opening 16 Through hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A disposable diaper in which an absorbent is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, wherein the surface sheet of the part where the buttocks of the diaper is located has an open area of 25 to 100 mm ^2. A large number of openings are provided, and between the surface sheet and the absorber at the site, there is a through-hole in which one opening area is 300 mm ² or more and the total area is 1000 mm ² or more, and the thickness is The diaper according to claim 1, wherein a separating piece made of a foamable and flexible foam sheet having a length of 3 mm or more is interposed.