JPH11216159A - Folded throwaway diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a diaper easily spreadable flat when the package is opened by attaching elastic sheets to every line for folding in a state where they stride over the lines on the inside wall or the outside one of the back sheet. SOLUTION: Inside back sheet 3 of the throwaway diaper, an elastic sheet 21 that strides over the first folding line A-A, and that extends backward and forward is attached. The elastic sheet 21 is composed of elastic materials, for example, polyurethane foam or polyethylene foam and the like. These elastic sheet 21, part 16 for waist and part 17 around leg can be attached to the back sheet 3 by hot melting agent. If the diaper folded for the purpose of packing is extended backward and forward as the folding at the second folding line B-B is released, side rim 13 which has been folded until that returns to the previous state that it had not yet been folded. So, the folded diaper can be speedily put on without using difficult opening method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper in which the front and rear waist regions can be removably connected via a fastener mechanism at a side edge of the diaper.

[0002]

2. Description of the Related Art Conventionally, in a packaged open-type disposable diaper, after both side edges of each diaper are folded inside the diaper, furthermore, front and rear waist regions are folded inside the diaper. is there.

[0003]

The diapers thus folded are often strongly compressed in the thickness direction in order to reduce the packaging capacity. Since the diaper has a habit of being folded, when used, for example, the mother stretches the diaper with both hands to make it flat. However, diapers with habits are difficult to handle when both hands cannot be used as expected.

Accordingly, an object of the present invention is to provide a diaper which is easy to spread flat when unwrapped.

[0005]

Means for Solving the Problems In solving the above problems,
The present invention is based on the assumption that the liquid-permeable top sheet, the liquid-impervious back sheet, and the liquid-absorbent core interposed between the two sheets, and the front and rear longitudinal regions in the front and rear longitudinal direction. The rear waist region, the crotch region located between these two regions, and both side edges of the open-type disposable diaper along the fold curve extending in the longitudinal direction at one of the side edges and the vicinity thereof. The disposable diaper is folded inside the diaper, and the front and rear waist regions are folded inside the diaper.

[0006] On this assumption, the present invention is characterized in that an elastic sheet straddling the folding curve is attached to either the inner surface or the outer surface of the back sheet for each folding curve. ,It is in.

[0007] In a preferred embodiment of the present invention, the elastic sheet is one of a foamed polyurethane sheet and a foamed polyethylene sheet.

[0008]

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

1 and 2 are a perspective view of a folded diaper 1 and a perspective view when the diaper 1 is partially extended and broken. The diaper 1 is an open type,
It is composed of a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and a liquid-absorbent core 4 interposed between these two sheets 2, 3, and has a front waist region 6 in the longitudinal direction, and a rear waist region. Waist area 7
And a crotch region 8 located between the waist regions 6 and 7. The front and back sheets 2 and 3 are joined to each other at a portion extending from the peripheral edge of the core 4 to form front and rear edge flaps 11 and 1.
2 and a pair of side edge flaps 13. The side edge flap 13 is curved inward in the crotch region 8. Between the front and back sheets 2 and 3 of the rear edge flap 12 and the side edge flap 13, a waist elastic member 16 extending in the waist direction and a leg elastic member 17 extending in the front / rear direction. And these elastic members 1
6 and 17 are joined to at least one of the front and back sheets 2 and 3. A tape fastener 18 is attached to each side edge of the rear waist region 7.

The thus constructed diaper 1 in the extended state has a first folding curve A in which each side edge portion 13 extends in the front-rear direction.
The folded diaper 1 of FIG. 1 is obtained by being folded inward along -A and further folded inward along a second folding curve BB that bisects the front-rear direction. The width of the folded diaper 1 is equal to the distance between a pair of first folding curves AA parallel to each other, and the position of the first folding curve AA is determined so that the width becomes a required value. .

As is clear from the broken portion in FIG. 2, an elastic sheet 21 extending over the first fold curve AA and extending preferably in the front-rear direction is attached to the inner surface of the back sheet 3. The elastic sheet 21 is a sheet made of an elastic material such as foamed polyurethane or foamed polyethylene,
When the external force bending the diaper 1 is released, the diaper 1 is easily restored to the original flat state.

FIG. 3 is a plan view showing the inner surface of the back sheet 3. From each of the front and rear waist regions 6 and 7 to the crotch region 8, the elastic sheet 21 extends across the first folding curves AA. The waist elastic member 16 and the leg elastic member 17 are also attached to this inner surface. The elastic sheet 21 and the elastic members 16 and 17 are attached to the back sheet 3 by, for example, a hot melt adhesive (not shown).

The diaper 1 of FIG. 1 configured as described above.
When the bend at the second fold curve BB is released and extends in the front-rear direction, the side edge portion 13 which has been bent until then returns to the state before the bend due to the restoring force of the elastic sheet 21. . Therefore, the folded diaper 1 can be worn quickly without any trouble to extend it.

FIG. 4 is a drawing similar to FIG. 3 showing an example of the embodiment. An elastic sheet 21 is attached to the inner surface of the back sheet 3 at the intersection of the first fold curve AA and the second fold curve BB. In the case of the diaper 1 using the back sheet 3, it is easy to extend the front and rear waist regions 6 and 7 that are bent and overlapped by the second folding curve BB in the front and rear direction.

[0015]

As described above, the folded disposable diaper according to the present invention is extended by the restoring force of the elastic sheet attached so as to straddle the folding curve of the diaper, so that no trouble is required when the diaper is worn.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folded diaper.

FIG. 2 is a partially broken perspective view when the diaper of FIG. 1 is partially extended.

FIG. 3 is a plan view of a back sheet.

FIG. 4 is a drawing similar to FIG. 3, showing an example of the embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folded diaper 2 Top sheet 3 Back sheet 4 Core 6 Front waist area 7 Rear waist area 8 Inseam area 13 Side edge 21 Elastic sheet AA 1st fold curve BB 2nd fold curve

Claims (2)

[Claims] 1. A liquid-permeable top sheet, a liquid-impervious back sheet, and a liquid-absorbent core interposed between these sheets, and a front waist area and a rear waist area in the longitudinal direction. Area and
Each of the two side edges of the open-type disposable diaper having a crotch region located between the two regions is formed along the fold curve extending in the longitudinal direction at one of the side edges and the vicinity thereof. A disposable diaper which is folded inward, and wherein the front and rear waist region is folded inside the diaper, wherein an elastic sheet straddling the folding curve is provided on one of an inner surface and an outer surface of the back sheet. The disposable diaper is attached to each of the folding curves. 2. The disposable diaper according to claim 1, wherein the elastic sheet is one of a foamed polyurethane sheet and a foamed polyethylene sheet.