JPH11104171A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means of rolling a disposable diaper to be disposed of after having been used. SOLUTION: The outer surface of an absorbent core 4 of this disposable diaper 1 is covered by a liquid-impermeable plastic sheet 3A and a nonwoven fabric 3B bonded to the outer surface of the sheet 3A. The nonwoven fabric 3B can be easily ripped at two mutually parallel lines extending in the longitudinal direction of the diaper and at one line extending in the width direction of the diaper, crossing the ends of the two parallel lines. The part 16 enclosed by these lines can be peeled off from the plastic sheet 3A, and an adhesive area 22 is formed either on the surface of the part of the nonwoven fabric, or on the surface of the part of the plastic sheet to be exposed when the part 16 is peeled off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper, and more particularly, to a diaper having a means for rolling a used diaper.

[0002]

2. Description of the Related Art In a disposable diaper disclosed in Japanese Utility Model Publication No. Hei 8-10305, a tape fastener for rolling up a diaper to be discarded is attached to an outer surface of a rear waist region of the diaper.

The pants-type disposable diaper disclosed in Japanese Utility Model Laid-Open Publication No. 5-51327 is such that an opening edge of the waist opening is cut in the waist direction to form an annular band, and the diaper can be rolled with the band. Is configured.

[0004]

SUMMARY OF THE INVENTION
The diaper disclosed in Japanese Patent Publication No. 05 requires a tape fastener separate from the diaper in order to roll the diaper, and the fastener increases the product cost to a considerable extent.

[0005] In the diaper disclosed in Japanese Utility Model Laid-Open No. 5-51327, when the peripheral edge of the waist opening is torn, a part of the core absorbing body fluid may be exposed. The effect of rolling and discarding is halved.

Therefore, an object of the present invention is to provide a diaper capable of solving the problems of the conventional technology.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an object of the present invention is to cover the inner surface of a liquid-absorbent core with a liquid-permeable sheet while the outer surface is made of a liquid-impermeable plastic. It is covered by a sheet and a non-woven fabric bonded to the outside of the sheet, and the longitudinal direction of the front and rear is
This is a disposable diaper including a front waist region, a rear waist region, and a crotch region located between these two regions.

In this diaper, the present invention is characterized in that the nonwoven fabric has two parallel line segments extending in the longitudinal direction and an end portion of the line segment extending in the width direction of the diaper. While being formed easily with a single line segment that intersects, the portion surrounded by these line segments is formed to be peelable from the plastic sheet, and the inner surface of the peelable portion of the nonwoven fabric and An adhesive area that can be repeatedly fixed is formed on one of the outer surfaces of the plastic sheet corresponding to the site.

[0009]

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

FIG. 1 is a perspective view of a pants-type disposable diaper 1 which is an example of a disposable diaper. The diaper 1 includes a front waist region (front body) 6, a rear waist region (back body) 7,
The crotch region 8 is located between the two regions 6 and 7, and the rear waistline region 7 is located on the near side in the figure. The front and rear waist regions 6 and 7 have side edges overlapping each other in a palm-shape manner and are intermittently joined at joining portions 13 arranged vertically above and below the waist opening 1.
1 and a pair of leg openings 12 are formed. In the direction around the peripheral edge of each of the openings 11, 12, an elastic elastic member 1
4, 15 are attached in an extended state.

In the center of the crotch region 8 of the diaper 1 in the width direction and near the rear waistline region 7, a second back sheet 3B forming the outer surface of the diaper 1 is formed so as to be peelable. There is a site 16. The portion 16 is formed so that the second back sheet 3 </ b> B is particularly easily torn in part, and is also easily torn in the same manner as the two first line segments 17 extending parallel to each other in the up-down direction. The first line segment 17 extends in the width direction and is surrounded by a single second line segment 18 that crosses the lower end of each first line segment 17. In the center of the second line segment 18, a holding portion 19 is formed by drawing a curve in which the second line segment 18 is convex downward.

FIG. 2 is a partial view of the diaper 1 showing a cross section taken along the line II-II of FIG. 1, and a portion 16 of the second back sheet 3B is a virtual line when in the state of FIG. It is shown by solid lines when in the peeled state. Looking at the thickness direction of the diaper 1, the inner surface of the liquid-absorbent core 4 made of pulverized pulp or the like is covered with the liquid-permeable top sheet 2, and the outer surface of the core 4 is liquid-impermeable first back sheet 3A.
And a second back sheet 3B joined to the outer surface of the sheet 3A via a hot melt adhesive 21.
An adhesive 22 is applied to the outer surface of the first back sheet 3A corresponding to the portion 16 of the second back sheet 3B,
6 is fixed to the adhesive 22 in a detachable state. The holding portion 19 is located outside the application area of the adhesive 22, and when the user holds the holding portion 19 and pulls the portion 16 upward in the drawing, the portion 16
Is peeled off from the adhesive 22 to be in a state shown by a solid line.

FIG. 3 is a perspective view of the rolled diaper 1.
If the diaper 1 after use is rolled and then the waist opening edge is fixed to the exposed adhesive 22, the inner surface of the diaper dirty with excrement does not go out.

FIG. 4 shows an example of the embodiment of the present invention.
FIG. In the diaper 1, an adhesive 22 is applied to the inner surface of the portion 16 in the second back sheet 3B. The diaper 1 of this embodiment is the same as the diaper 1 shown in FIG.
Can be rolled up.

The present invention can be implemented with an open-type diaper in addition to the pants-type diaper 1 in the illustrated example. The peelable portion 16 of the second back sheet 3B is located at the crotch region 8
The present invention is not limited to this, and may be located in the front waistline region 6 or the rear waistline region 7. Further, the direction in which the part 16 is peeled off may be from the upper side to the lower side of the diaper 1, as opposed to the illustrated example. The holding unit 19 can omit it. Further, the holding portion 19 may be made of a sheet material separate from the second back sheet 3B and attached to the portion 16.

In the diaper 1, a nonwoven fabric or a perforated plastic film can be used for the topsheet 2. A plastic film is used for the first back sheet 3A. A nonwoven fabric is used for the second back sheet 3B. The adhesive 22 may be applied to one of the first and second back sheets 3A and 3B, or may be replaced with, for example, a double-sided adhesive paper adhered to one of the sheets 3A and 3B.

One example of the first and second line segments 17 and 18 that can be easily torn in the second back sheet 3B is a row of perforations formed in the sheet 3B.

[0018]

The disposable diaper according to the present invention uses an adhesive area exposed by peeling off a part of the back sheet in order to roll the diaper. It is possible to suppress an increase in diaper manufacturing costs as compared with the conventional technique of rounding diapers. Even if a part of the back sheet is peeled off, the core is not exposed, which is sanitary.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along the line II-II of FIG. 1;

FIG. 3 is a perspective view of a rolled diaper.

FIG. 4 is a drawing similar to FIG. 2 showing an example of the embodiment;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Diaper 2 Liquid-permeable sheet 3A Liquid-impermeable plastic sheet (1st back sheet) 3B Nonwoven fabric (2nd back sheet) 4 Core 6 Front waist area 7 Rear waist area 8 Inseam area 16 Parts 17, 18 Line segments 22 Adhesive area (adhesive)

Claims (1)

[Claims] An inner surface side of a liquid-absorbent core is covered with a liquid-permeable sheet, while an outer surface side is covered with a liquid-impermeable plastic sheet and a nonwoven fabric bonded to an outer surface of the sheet. The longitudinal direction is a front waist region, a rear waist region, and a disposable diaper configured with a crotch region located between these two regions, wherein the nonwoven fabric extends in the longitudinal direction and has two parallel sections. Lines and a line extending in the width direction of the diaper, and easily formed in a single line intersecting with the end of the line, are easily formed, and a portion surrounded by these lines is An adhesive area which is formed so as to be peelable from the plastic sheet and which can be repeatedly fixed to any of the inner surface of the peelable portion of the nonwoven fabric and the outer surface of the plastic sheet corresponding to the portion is formed. It said diaper and said Rukoto.