JP2599018Y2 - Pants-type disposable diapers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type disposable diaper which can be pierced, and more particularly to a pants-type disposable diaper which can be manufactured at a low cost and which can be worn tightly on the waist. .

[0002]

2. Description of the Related Art A pants-type disposable diaper is disclosed in
The ones disclosed in JP-A-2-4364 and JP-A-3-139350 are commercially available. The former adopts elastic non-woven fabric on both sides of the pants-type disposable diaper. The function is to be demonstrated. On the other hand, the latter uses a stretchable film or nonwoven fabric as a water-permeable sheet or a water-impermeable sheet, and is loaded with an absorbent made of pulverized pulp or a highly water-absorbent resin material therebetween, thereby exhibiting the above function. I am going to let it.

[0003] However, these pants-type disposable diapers have to use an expensive stretchable nonwoven fabric or film partially or entirely, and there is a major problem that the cost of the diaper itself increases.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pants-type disposable diaper that is stretchable in the width direction of the diaper, has excellent wearability, and can be manufactured at low cost.

[0005]

According to the present invention, which has achieved the above object, an approximately hourglass-shaped water-permeable sheet having ears at the front and back is overlapped with an impermeable sheet, and the area of each sheet excluding the ears is excluded. A disposable diaper formed in a pants-type having a body opening and a pair of leg openings by inserting an absorbent body into the diaper, joining the peripheral edges, and joining the front and rear ear side edges to each other. Then, a plurality of elastic members in a tensioned state are applied to the ears of the water-permeable sheet and / or the water-impermeable sheet between the body opening and the leg opening of the diaper from the side edge of the ear toward the center of the diaper in the front-rear direction. It has a gist in that the elastic part is formed on both left and right sides of the diaper except for the center part in the width direction of the absorber.

[0006]

FIG. 1 is an exploded plan view showing a typical embodiment of the present invention. The disposable diaper comprises a water-impermeable sheet 1 formed of a synthetic resin film or the like, a water-permeable sheet 3 made of a synthetic resin nonwoven fabric or the like, and an absorber 2 as main components. Are formed in a substantially hourglass shape at the front and rear portions of the body, and an absorber 2 made of ground pulp, tissue, highly water-absorbent resin material, or the like is loaded between them.

The water-impermeable sheet 1 and the water-permeable sheet 3 are bonded to each other at the outer peripheral edge of the absorber 2 with an adhesive or a heat seal, and an elastic body 5 for a waist band is provided at the front and rear ends of the diaper. An elastic body 4 for leg gathers is provided on the side of the diaper. In addition, the side edge A of the ear portion 1a for forming this into a pants type joins front and rear portions of the diaper.

On the other hand, the four ears 1a, 1a,... Are not loaded with the absorber 2, and the impermeable sheet 1 and / or the water-permeable sheet 3 are provided with elastic members 11, 11,. You. As the elastic body 11, a rubber thread or a spandex thread or the like is used, and an adhesive is intermittently or entirely applied to the elastic body 11 or the sheets 1 and 3 to bond the two members.
In the illustrated example, an example is shown in which the elastic body 11 is bonded to any of the ear portions 1a before and after the diaper, but the elastic body 11 may be bonded only to any of the front and rear sides.

The elastic body 11 is not provided so as to cross the absorber 2, but is provided only along the ears 1a along the width direction of the diaper. An elastic part is formed on the elastic member. This prevents the absorber 2 from being deformed by the contraction force of the elastic body 11.

[0010] Figure 4 is an explanatory view showing a shape by joining the side edges A of the ear portion 1a in the pant, with the periphery of the waist opening M ₁ West gather 5A is formed by an elastic body 5 Elastic body 4 around two leg openings M ₂ , M ₂
Thereby, leg gathers 4A are formed. Further West gathers 5A and the leg elastic, stretchable portion 11A in the diaper width direction between the opening M _2, 11A are formed by an elastic body 11, 11, the stretchable portion 11A, 11A is in close contact with the waist of the wearer Hold the diaper as shown.

The elastic body 11 is preferably provided between the elastic body 5 for waist gathers and the elastic body 4 for leg gathers. The arrangement method is parallel to the diaper width direction in FIG. In FIG. 2, the elastic body 11 has a center-side end that is obliquely arranged from the side edge of the ear toward the center in the diaper front-rear direction. With this configuration, the center of the diaper in the front-rear direction behaves so as to be pulled up,
The diaper can be worn while being closely attached to the wearer's crotch. In addition, the example of FIG.
a, Lb are changed, and the interval between the front (or rear) ends is gradually narrowed (so that La <Lb) so that strong elasticity is provided at the upper part of the waist of the wearer. Make it work. In order to exert the same effect, the elastic body 11 disposed at the front and rear end portions of the diaper may be disposed so that the tensile tension gradually increases.

In the example of FIG. 1, the elastic members 4, 5, 11
Indicates a thread, but may be a strip or a ribbon, and the elastic body 4 may be arranged not only in a straight line but also in an arc shape. Further, on the front side of the water-permeable sheet 3, another cuff for a leg which can be raised upward between the side edge of the absorber 2 and the elastic body 4 is provided. The elastic gathers for the legs may be formed by adding another elastic body along the line.

[0013]

According to the present invention, the elastic portion can be formed on the body portion of the diaper only by using an elastic body without using an expensive sheet-like elastic member, and a pants-type disposable diaper can be formed at a low cost. became.

[Brief description of the drawings]

FIG. 1 is an exploded plan view showing a typical embodiment of the present invention.

FIG. 2 is a partial plan view showing another embodiment of the present invention.

FIG. 3 is a partial plan view showing another embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a completed state of FIG. 1;

[Description of Signs] 1 Water-impermeable sheet 2 Absorber 3 Water-permeable sheet 11 Elastic body 1a Ear A side edge

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A61F 13/15-13/72 A41B 13/04 A61F 5/44

Claims (3)

(57) [Scope of request for utility model registration] 1. A substantially hourglass-shaped water-permeable sheet having ears at the front and rear, and a water-impermeable sheet are overlapped with each other. A disposable diaper formed in a pants-type having a waist opening and a pair of leg openings by joining the ear side edges of the diaper to each other, wherein the diaper is disposed between the waist opening and the leg opening. A plurality of tensioned elastic bodies are applied to the ears of the water-permeable sheet and / or the water-impermeable sheet.
A pants-type disposable diaper characterized by being provided diagonally from the front to the center in the front-rear direction of the diaper and formed with elastic portions on both left and right sides of the diaper except for the center in the width direction of the absorber. 2. The pants-type disposable diaper according to claim 1, wherein the elastic members are provided at a distance from the front and rear ends of the diaper. 3. The pants-type disposable diaper according to claim 1, wherein the tensile strength of the elastic body is higher toward the front and rear ends of the diaper.