JPH07100168A - Disposable diaper - Google Patents

Abstract

PURPOSE:To enable a disposable diaper to be settled at both the right and left sides of the waist part of the diaper when used only by adhering fastening tapes, to prevent excrement from leaking and to prevent a user from feeling a pain from being rubbed with the fastening tape. CONSTITUTION:This disposable diaper comprises a liquid-permeable surface sheet 2, a liquid-impermeable reverse sheet 3, an absorbent material 4 laid between the surface sheet 2 and the reverse sheet 3, fastening tapes 10 to settle the diaper when used, and release tapes 20 keeping adhesive parts 11 of the fastening tapes 10 adhering, when unused, by folding the fastening tapes 10 at the folding position. The release tape 20 has the adhesive part 11 adjoining to the folding position and the fastening tape 10 has a removable part 12 corresponding to the adhesive part of the release tape 20.

Description

Detailed Description of the Invention

[0001]

The present invention relates to infants, incontinent persons,
Regarding disposable diapers for adults.

[0002]

2. Description of the Related Art Generally, a disposable diaper has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between these sheets, and the diaper is fixed when worn. And a release tape for sticking the adhesive surface of the fastening tape by bending the fastening tape at its bent portion when the fastening tape is not used.

When the diaper is used, the fastening tape is adhered to the back sheet to fix the diaper.

However, since only the central portion of the diaper is fixed by the fastening tape, the left and right side edges of the front waist portion overlap with the left and right side edges of the front and rear waist portions of the diaper. There are problems that the wearer may be displaced during wearing, leakage of excrement may occur, or the fastening tape may hit the wearer's skin and cause pain to the wearer.

Therefore, in order to solve the above-mentioned problems, a disposable diaper has been proposed in which velcro tapes are attached to the left and right edges of the waist part before and after the diaper. There is a problem that it is necessary to attach it to the diaper, and when attaching the diaper, it is necessary to attach the Velcro tape in addition to the operation of adhering the fastening tape.

Therefore, the object of the present invention is to fix the fastening tape on the left and right side edges of the waist part in front of the diaper only by adhering the fastening tape. Another object of the present invention is to provide a disposable diaper in which the above-mentioned fastening tape does not cause the wearer's pain by hitting the wearer's skin.

[0007]

The present invention provides a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body interposed between these sheets, and a fastening tape for fixing a diaper during wearing. In a disposable diaper having a release tape for bending the fastening tape at its bent portion when the fastening tape is not in use, and keeping the adhesive portion of the fastening tape adhered,
The release tape has an adhesive portion adjacent to the bent portion, the fastening tape has a peeling portion at a portion corresponding to the adhesive portion of the release tape,
Disposable diapers characterized by the following (hereinafter, "first invention")
In this case, the above object is achieved by providing the present invention).

The present invention also provides a liquid-permeable surface sheet,
A liquid-impermeable backing sheet and an absorber interposed between these sheets, a fastening tape for fixing the diaper during wearing, and an adhesive portion of the fastening tape which is adhered when the fastening tape is not in use A disposable diaper having a tape, wherein the release tape is formed of a material having an anti-slip function for the back sheet (hereinafter, referred to as "second invention" in the present invention. The above object is achieved by providing the above.

[0009]

The disposable diaper according to the present invention is used by attaching the fastening tape provided on the waist portion of the diaper to the back sheet and attaching it to the wearer. At this time, since the adhesive portions provided on the release tape are adhered to the left and right side edges of the front waist portion, the left and right side edges of the front waist portion are not displaced during the wearing of the diaper.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the accompanying drawings. First, an embodiment of the first invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an embodiment of the disposable diaper of the first invention, and FIG. 2 is a sectional view taken along line II ′ of the disposable diaper shown in FIG. Also, FIG.
Is a partially cutaway exploded view of the disposable diaper shown in FIG.
FIG. 4 is a cross-sectional view taken along the line II ′ of the disposable diaper shown in FIG.

As shown in FIGS. 1 and 2, the disposable diaper 1 of this embodiment comprises a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorbent body 4 interposed between these sheets. , A fastening tape 10 for fixing the diaper at the time of wearing, and the fastening tape 10 is bent at its bent portion 13 when the fastening tape 10 is not used, and the adhesive portion 11 of the fastening tape 10 is adhered to the release. And a tape 20. And
The release tape 20 has an adhesive portion 21 adjacent to the bent portion 13, and the fastening tape 10
However, the release tape 20 has a peeling portion 12 at a portion corresponding to the adhesive portion 21.

More specifically, in the disposable diaper 1 of this embodiment, as shown in FIGS. 1 and 3, the absorbent body 4 is curved and formed in an hourglass shape in which the crotch region is entangled, and the top sheet 2 and the back surface are arranged. The crotch region of the seat 3 is also curved in accordance with the shape of the absorber 4 as described above, and the absorber 4 is sandwiched and fixed by the topsheet 2 and the backsheet 3. Further, the waist portions 5, 5 ′ and the leg portions 6 on the front and rear sides of the peripheral portion of the absorbent body 4 allow the wearer to fit the waist portions 5, 5 ′ and the leg portions 6 when the diaper is worn. An elastic elastic member 7 is provided by being fixed by the top sheet 2 and the back sheet 3. Further, the release tape 20 is provided on both side edges of the rear waist portion 5 ′ on the surface sheet 2 side, and the fastening tape 10 is provided on both side edges of the rear waist portion 5 ′. The back sheet 3 is fixedly provided so as to correspond to the release tape 20.

The surface sheet 2 is preferably a liquid permeable sheet that allows excrement to permeate into the absorbent body and has a feeling close to that of underwear. Examples of such a liquid permeable sheet include woven fabric and non-woven fabric. , And porous films are preferred. In addition, a method of applying a hydrophobic compound such as a silicone oil or paraffin wax to the peripheral edge of the surface sheet 2 or a method of previously applying a hydrophilic compound such as an alkyl phosphate ester to the entire surface and washing the peripheral edge with warm water is performed. By applying a water repellent treatment, it is possible to prevent leakage due to bleeding of urine or the like at the peripheral edge.

The backsheet 3 is preferably a vapor-permeable, liquid-impermeable sheet that is permeable to vapor and is stretched by adding a filler to a thermoplastic resin, and preferably has a feel similar to that of underwear. As such a liquid impermeable sheet, for example, a composite material of a film and a non-woven fabric is preferably cited. A landing tape 8 for fixing the diaper by adhering the fastening tape 10 is provided on the front waist portion 5 side of the back sheet 3.

Further, the absorbent body 4 is preferably one in which a high molecular weight water-absorbing polymer mainly composed of defibrated pulp is used in combination, and a heat-treated mixture of thermoplastic resin, cellulose fiber and high-molecular weight water-absorbing polymer is preferably used. preferable. The high-molecular water-absorbing polymer may be present in any of the upper layer, the middle layer, and the lower layer of the absorbent body 4, or may be a mixture with pulp. Further, the high molecular weight water-absorbing polymer is preferably in the form of particles having a retaining property capable of absorbing and retaining a liquid 20 times or more its own weight and having a gelling property,
Examples of such high-molecular water-absorbing polymer include starch-acrylic acid (salt) graft copolymer, starch-
Preferable examples include saponified products of acrylonitrile copolymer, crosslinked products of sodium carboxymethyl cellulose, and acrylic acid (salt) polymers.

The elastic elastic member 7 is preferably made of thread rubber, flat rubber, film-type rubber, or film-like polyurethane foam, and preferably has a stress at 150% elongation of 40 to 100 g.

The characteristic parts of the disposable diaper 1 of this embodiment will be described in detail below. As shown in FIGS. 2 and 4, the release tape 20 has an adhesive portion 21 and an adhesive portion 11 of the fastening tape 10. And a base tape 23 provided with the adhesive portion 21 and the adhesive portion 22. The adhesive portion is provided adjacent to the bent portion 13. The fastening tape 10 is a tape fixing portion 1 fixed to a diaper.
4 and a tape portion 15 which is adhered to the landing tape 8. The tape portion 15 is adhered to the landing tape 8 when fixing the diaper.
1 and a peeling portion 12 provided adjacent to the bent portion 13 so as to correspond to the adhesive portion 21 of the release tape 20. In addition, at the edge of the tape portion 15, a knob portion 1 for facilitating the fixing operation of the diaper.
6 is provided.

When using the diaper, as shown in FIG. 2, the adhesive portion 11 of the fastening tape 10 is adhered to the landing tape 8 so that the diaper can be fixed and used. At this time,
At the same time that the adhesive portion 11 of the fastening tape 10 is adhered, the adhesive portion 21 of the release tape 20 is adhered to the back sheet 3 on the side edge portion of the front waist portion 5, so that the front waist portion is formed. Both side edges of the part 5 do not shift during use of the diaper. Before using the diaper, as shown in FIG. 4, the adhesive portion 11 of the fastening tape 10 is attached to the peeling portion 22 of the release tape 20,
The fastening tape 10 and the release tape 20 are so arranged that the peeling portions 12 of the fastening tape 10 come into contact with the adhesive portions of the release tape 20, respectively.
Since each of the adhesive parts 11 and 21 is formed,
Can be protected until use.

Further, as the materials for forming the above-mentioned fastening tape and release tape, that is, the tape material, the adhesive material, the release material, etc., those generally known can be used without particular limitation.

Next, with reference to FIGS. 5 and 6, an embodiment of the disposable diaper of the second invention will be described. still,
The points that are not particularly described are the same as those in the above-described embodiment. FIG. 5 is a development view (corresponding to FIG. 2) showing one embodiment of the disposable diaper of the second invention, and FIG. 6 is a sectional view taken along line II ′ of the disposable diaper shown in FIG. 5 (corresponding to FIG. 4). Is.

The disposable diaper 1A shown in FIGS. 5 and 6
Is a liquid-permeable topsheet 2A, a liquid-impermeable backsheet 3A, and an absorber 4A interposed between these sheets,
Fastening tape 1 for fixing the diaper when worn
0A and a release tape 20A for adhering the adhesive portion 11A of the fastening tape 10A when the fastening tape 10A is not used. The release tape 20A is made of a material having an anti-slip function for the back sheet 3A.

In detail, the release tape 20A is
All of them are made of a material having an anti-slip function for the back sheet 3A. Further, the fastening tape 10A is the release tape 20.
An adhesive portion 11A is formed on all of the surfaces contacting A, and is adhesively adhered to the release tape 20A.

As a material having an anti-slip function for forming the release tape 20A, it exhibits releasability with respect to the adhesive portion of the fastening tape 10A,
The back sheet 3A is not particularly limited as long as it has a large frictional force, and examples thereof include an adhesive having a low tack, rubber, urethane and the like.

In the disposable diaper 1A of this embodiment, since the release tape 20A is formed of the above-mentioned material, the front waist portion 5 can be simultaneously operated by performing the adhesion operation of the fastening tape 10A when the diaper is used.
The side edge portion of A is hooked by the release tape 20A, and the side edge portion of the front waist portion 5A does not shift during use.

The present invention is not limited to the above embodiment,
Various modifications can be made without departing from the scope of the present invention.

[0026]

EFFECT OF THE INVENTION The disposable diaper of the present invention can be used only when the fastening tape is adhered, and when the diaper is used,
The left and right edges of the waist in front of the diaper can also be fixed, so that excrement does not leak and the fastening tape does not hit the wearer's skin and cause pain to the wearer.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a disposable diaper of the first invention.

FIG. 2 is an II ′ of the disposable diaper shown in FIG.
FIG.

FIG. 3 is a partially cutaway exploded view of the disposable diaper shown in FIG.

FIG. 4 is an II ′ of the disposable diaper shown in FIG. 3;
FIG.

FIG. 5 is a development view (corresponding to FIG. 2) showing one embodiment of the disposable diaper of the second invention.

FIG. 6 is an II ′ of the disposable diaper shown in FIG. 5;
FIG. 5 is a sectional view (corresponding to FIG. 4).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Topsheet 3 Backsheet 4 Absorber 5 Front waist part 5'After waist part 6 Leg part 7 Elastic member 8 Landing tape 10 Fastening tape 11 Adhesive part 12 Release tape 21 Adhesive part 22 Peeling part

Claims (2)

[Claims] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body interposed between these sheets, and a fastening tape for fixing a diaper during wearing,
In a disposable diaper having a release tape for bending the fastening tape at the bent portion when the fastening tape is not used, and for sticking the adhesive portion of the fastening tape, the release tape is adjacent to the folded portion. A disposable diaper characterized in that the fastening tape has a peeling portion at a portion corresponding to the adhesive portion of the release tape. 2. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body interposed between these sheets, and a fastening tape for fixing a diaper when worn.
In a disposable diaper having a release tape for adhering an adhesive portion of the fastening tape when the fastening tape is not used, the release tape is formed of a material having an anti-slip function for the back sheet. A characteristic disposable diaper.