JPH08215240A - Paper diaper with wing - Google Patents

Abstract

PURPOSE: To eliminate the use of any basically useless member to be discarded, and further prevents deviation from shorts. CONSTITUTION: Double-folded sheets 10 and 10 formed in a wing are arranged on both side parts at the position of a crotch part at an intermediate point along the length of a liquid impermeable back sheet 1. The wing-formed sheet 10 has a releasing handling part 10A secured on the liquid impermeable back sheet 1 by a hot melt adhesive or the like and a wing part 10B mounted temporarily on the releasing handling part 10A and the releasing handling part 10A facing the wing part 10B is made as releasing surface 10d. In a product, the releasing handling part 10 is plied on the wind part 10B through a pressure sensitive adhesive layer 10C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper placed inside pants, and more particularly, a diaper formed as a means for preventing relative displacement with respect to pants when being worn on pants. Regarding paper diapers.

[0002]

2. Description of the Related Art Recently, in disposable diapers marketed,
In order to effectively prevent the leakage of excrement, three-dimensionally standing barrier cuffs are installed around the legs, gasket elastic cuffs are formed vertically on the side of the diaper to form gasket cuffs, and even at the waist. There is a remarkable tendency toward higher functionality, such as the formation of waist gathers by disposing elastic stretchable members.

[0003]

However, in order to effectively exhibit the functions of these barrier cuffs, gasket cuffs, etc., it is necessary to effectively prevent relative displacement of the disposable diaper with respect to the pants. The paper diaper is apt to shift its relative position to the local part due to walking or exercise during use, and in such a case, excrement is likely to leak.
Therefore, it is an important issue to effectively prevent such deviation.

In order to solve the above problem, when the diaper alone is used for an infant or the like as a means for preventing the diaper from being displaced, it is generally worn by tape fasteners provided on both sides of the back side of the diaper. Although it fits the wearer, children who leave the diaper and bedwet only at night or during the toilet training period feel resistance to the paper diaper (tape type) and dislike it. Therefore, it is preferable to use a pad type (wearing the pants and then trying the pants) that can be used like pants (underwear). This can promote separation of the diaper and reduce discomfort for the infant.

However, in this case, since it is not fixed by the tape fastener, there is a need for a means for preventing the displacement of the diaper. Therefore, for example, apply a pressure-sensitive adhesive to prevent slippage on the outer surface of a liquid-impermeable backsheet in a paper diaper, and temporarily attach release paper to this, and at the time of use, peel off the release paper and adhere to the inner surface of the pants. It is possible to fix it via a drug.

However, it is necessary to peel off the release paper at the time of use, and not only it is necessary to dispose of the release paper, but also the release paper itself becomes dust, resulting in an increase in the amount of dust to be processed.

Therefore, an object of the present invention is to provide a disposable diaper which basically does not use an unnecessary discarding member and which surely prevents the dislocation from the pants.

[0008]

Means for Solving the Problems The above-mentioned problem is a paper diaper having an absorbent body interposed between a liquid-impermeable back sheet and a liquid-permeable top sheet and arranged inside pants. On the outer surface portion of the crotch portion position in the middle in the longitudinal direction of the liquid backsheet, a mold release treatment portion integral with this is formed, and both side edges of the paper diaper are provided with an adhesive layer facing the mold release treatment portion. Wings are formed respectively, and both wings are temporarily attached to the release-treated portion via the adhesive layer in the unused state, and wrap around from the crotch side edge of the pants in the used state. The problem can be solved by applying it to the outer surface of the pants and fixing it to the pants via the adhesive layer.

In the mold release treatment, the liquid impermeable backsheet itself is subjected to mold release treatment, and preferably, a sheet separate from the liquid impermeable backsheet is fixed, and the outer surface of the mold release treated portion is released. It is formed by having a property.

The wing constituent member and the mold release processing partial constituent member may be integrated or may be separate members.

In addition, the release-processed portion is formed substantially at the crotch-corresponding position of the disposable diaper over substantially the entire width direction of the product, and is formed only on both sides of the crotch-corresponding position.
It is also possible to form them apart from each other.

[0012]

In the present invention, the wing is wrapped around the crotch portion side edge of the pants and applied to the outer surface of the pants, respectively, and is fastened to the pants through the adhesive layer in the use state. Therefore, the paper diaper is integrated with the underpants, so that the shift can be prevented especially in the crotch portion which is easily displaced.

Further, according to the present invention, since the mold release treatment portion is formed on the outer surface portion of the liquid impermeable back sheet at the middle of the crotch portion in the longitudinal direction, the temporary attachment portion of the wing adhesive layer in the unused state. Since the release treatment part is formed integrally with the liquid-impervious back sheet, it is not necessary to peel off the release paper and discard it when using it, as compared with the above-mentioned assumed example. Can be resolved. In addition, if there is no urination at night, the wings can be temporarily attached to the release-treated portion to prepare for the next night as the initial state.

On the other hand, in the above-mentioned assumed example, it is necessary to take out the release paper once discarded from the trash box, which is not realistic.

Further, conventionally, the product was cut to form the wing, but by forming the mold release processing portion and the wing constituent member integrally, it is not necessary to cut the product and the product material is There is no need to use it as needed.

The invention according to other claims will be described with reference to the following embodiments.

[0017]

EXAMPLES The present invention will be specifically described below with reference to examples. 1 to 4 show the first embodiment, and this paper diaper comprises a liquid-impermeable backsheet 1 made of polyethylene or the like, a liquid-permeable topsheet 2 made of nonwoven fabric, or the like.
Liquid-impermeable backsheet 1 and liquid-permeable topsheet 2
And an absorber 3 which has a rigidity to some extent and is made of cotton-like pulp or the like, and is interposed between the absorber 3 and the absorber 3. The absorbent body 3 may be wrapped with absorbent paper (not shown) to maintain its shape.

The liquid-impermeable backsheet 1 extends outwardly from the periphery of the absorbent body 3 to form a rectangular shape, and the laterally extending portions thereof are a barrier sheet 5 and a liquid-permeable top, which will be described later. It is joined together with the side portions of the sheet 2 by a hot melt adhesive or the like.

Barrier cuffs B are formed on both sides of the paper diaper so as to project to the side of the use surface. As shown in the figure, the barrier cuff B is formed by double-folding a barrier sheet 5 which is substantially continuous in the width direction, and is formed into a double layer. The plurality of elastic expansion / contraction members are fixed, and the barrier cuff B
Is standing up. As a material for forming the barrier sheet 5, a plastic sheet can be used, but from the viewpoint of the feel of the skin, a non-woven fabric subjected to a water repellent treatment with silicon or the like is preferably used.

If necessary, a plurality of elastic expansion / contraction members 7 for gasket cuffs are provided between the barrier sheet 5 and the liquid impermeable back sheet 2 at the flap portion outside the rising portion of the barrier cuff B. It can be fixed with a hot melt adhesive or the like. However, the contraction of the elastic stretchable members 7, 7 ... makes it difficult to secure the flatness of the wing described later and deteriorates the fixing property to the pants. Therefore, it is preferable not to provide them.

The barrier cuffs B, B are in contact with the wearer's legs, and the upper trapezoidal space surrounded by the barrier cuffs B, B and the liquid-permeable top sheet 1 has a substantially trapezoidal space to confine urine or loose stool. When urine is formed in this space, the urine passes through the liquid-permeable top sheet 1 and is absorbed in the absorbent body 3, and as for the loose stool solids, the barrier cuffs B and B are barriers (obstacles). ) Is prevented and the overcoming is prevented. Temporarily, barrier cuffs B,
Even if urine leaks in the lateral direction after passing over B, the lateral leakage is prevented by the gasket cuffs formed by the elastic expansion / contraction members 7, 7.

Now, according to the present invention, two folding wing-constituting sheets 10 and 10 are provided on both sides of the liquid-impervious back sheet 1 at the middle of the crotch portion in the longitudinal direction. The wing-constituting sheet 10 includes a release-treated portion 10A fixed to the liquid-impermeable backsheet 1 with a hot melt adhesive or the like, and the release-treated portion 10A.
And a wing portion 10B that is temporarily attached to. The mold-release treated portion 10A facing the wing portion 10B has a mold-releasing property by itself or has a mold-releasing treated surface 10d of silicone or the like on its outer surface.

Thus, in the product state, the wing portion 10B is released from the release treatment portion 1 with the folded edge of the wing component sheet 10 substantially aligned with the side edge of the product.
0A and is temporarily attached via the adhesive layer 10C.

When the paper diaper is attached to the pants P, after the paper diaper is applied to the inside of the pants P, the adhesive layer 10 of the wing portion 10B is conceptually shown in FIG.
While photographing the photographed portion 10e to which C is not applied, peel off from the mold release treated portion 10A, and apply this wing portion 10B to the outer surface of the pants P around the crotch side edge.
It is fastened to the pants P via the adhesive layer 10C.

First, the wings 10 and 10 are released from the mold treatment material 1.
Peel off from 0A and 10A. Then, as shown in FIG.
Wings 10 and 10 are made to wrap around from the crotch side edge of pants P attached to the upper side of the diaper, and are applied to the outer surface of pants P with adhesives 11 and 11, respectively, and fastened. As shown in FIG. 6, it is fixed to the pants P.

In the first embodiment, the wing-constituting sheets 10 and 10 are provided on both sides of the diaper, but in the second embodiment shown in FIG. 7, both end portions of one wing-constituting sheet 10 are arranged. The wing portions 10B and 10B are formed on the wing.

Further, in the third embodiment shown in FIG. 8, the release sheet 20 and the wing sheets 21 and 21 are separated and fixed to the liquid impermeable back sheet 1 by a hot melt adhesive or the like. . In this case, in the case of the wing sheets 21 and 21, the side edges of the paper diaper are wrapped around the front side of the paper diaper, for example, the barrier sheet 5, or the liquid-permeable top sheet 2 extends near the side edges of the paper diaper. It can be fixed to the liquid-permeable top sheet 2.

On the other hand, although not shown, as is easily inferred from the extension of the third embodiment, it is also possible to use a liquid-impermeable backsheet 1 itself or a release-treated backsheet 1 only at the crotch position. Come on. Therefore, that portion constitutes the mold release treatment portion of the present invention.

However, in general, the liquid-impermeable back sheet 1 is a thin sheet for ensuring the flexibility of the product and is easily broken when peeled off. Therefore, the releasing treatment part is different from that of the first and second embodiments. It is desired to form using a sheet.

The wing-constituting sheet 10, the release sheet 20, or the wing sheet 21 can be made of an appropriate material such as plastic or non-woven fabric.
As the material forming the pressure-sensitive adhesive layer, known pressure-sensitive adhesives such as rubber-based and acrylic-based can be used.

[0031]

As is apparent from the above description, according to the paper diaper according to the present invention, basically, there is provided a paper diaper which does not use an unnecessary discarding member and is surely prevented from slipping from the pants. can do.

[Brief description of drawings]

FIG. 1 is a plan view of a disposable diaper according to the present invention.

FIG. 2 is a plan view of the opposite surface side.

FIG. 3 is a perspective view thereof.

FIG. 4 is a transverse sectional view thereof.

FIG. 5 is a conceptual diagram showing a state in which a wing is peeled off from a mold release treated portion.

FIG. 6 is a perspective view showing pants on which a disposable diaper according to the present invention is mounted.

FIG. 7 is a transverse sectional view showing a second embodiment according to the present invention.

FIG. 8 is a transverse sectional view showing the third embodiment.

[Explanation of symbols]

1 ... Liquid-impermeable back sheet, 2 ... Liquid-permeable top sheet,
3 ... Absorber, 5 ... Barrier sheet, 10 ... Wing constituting sheet, 10A ... Release treatment material, 10B ... Wing portion,
Reference numeral 10C ... Adhesive layer, 10d ... Release surface, 10e ... Photographed portion, 20 ... Release sheet, 21 ... Wing sheet 21.

Claims (4)

[Claims] 1. A paper diaper having an absorbent body interposed between a liquid-impervious backsheet and a liquid-permeable topsheet and arranged inside pants, the longitudinal middle of the liquid-impervious backsheet. In the outer surface portion of the crotch position, a mold release treated portion is formed integrally with the crotch portion, and on both side edges of the paper diaper, wings provided with an adhesive layer are formed facing the mold treated portion. In the unused state, the both wings are temporarily attached to the release-treated portion via the adhesive layer, and in the used state, they are wrapped around from the side edge of the crotch portion of the pants and applied to the outer surface of the pants, respectively. A diaper with a wing, which is fastened to pants through the adhesive layer. 2. The mold release treated portion is formed by fixing a sheet separate from the liquid impermeable back sheet to the liquid impermeable back sheet and having an outer surface having mold releasability. Paper diaper with wings. 3. The diaper with a wing according to claim 1, wherein the wing constituent member and the mold release treatment partial constituent member are integral with each other. 4. The diaper with wings as claimed in claim 1, wherein the release treated portions are formed only on both sides of the crotch portion of the disposable diaper and are spaced from each other.