JPH059525U - Disposable diapers - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent side leakage of excrement while wearing disposable diapers. [Structure] A pair of flaps standing upright on both sides of the inner surface of the diaper are provided, the inner side of the flap is a water-permeable sheet, the outer side is a water-impermeable or water-repellent sheet, and an absorbent body is provided between both sheets.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disposable diaper having a flap provided with an absorber.

[0002]

[Prior Art]

 In a disposable diaper composed of a top sheet, a back sheet, and an absorbent body interposed therebetween, a pair of side flaps extending outward from the side of the absorbent body and a pair of side flaps standing on the inner surfaces on both sides of the diaper. The technique of providing the inner flap is well known. Further, a technique of providing an absorber on the inner flap is known from, for example, US Pat. No. 4,695,278. When this technology is used, the body fluid that flows in the lateral direction of the diaper is absorbed by the absorber provided on the inner flap, and it is possible to prevent side fluid leakage.

[0003]

[Problems to be solved by the device]

 By the way, the inner flap according to the above-mentioned known technique has a structure in which the water-permeable top sheet is extended to the side of the diaper to cover the absorbent body. In this case, bodily fluid permeates the top sheet in the thickness direction and is absorbed by the absorber, but in addition to that, it diffuses on the top sheet and reaches the outer edge of the diaper, and side leakage can still be sufficiently prevented. Not in.

In view of the above, the present invention has an object to solve the above-mentioned problems of the prior art by providing an absorber on the inner flap and forming a water resistant sheet on the outer side of the inner flap.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention solves the above problem by providing a main body having an absorbent body between a water-permeable top sheet and an impermeable back sheet, and at least the back sheet extending outward from each side edge of the main body. And a contraction force of an elastic member formed in a sleeve between the vicinity of each of the side edges and the outer edge of each of the first side flaps and extending in the longitudinal direction and attached to the sleeve. It is premised on a disposable diaper having a second side flap standing upright inside the diaper. In such a diaper, the second side flap is composed of a water-permeable sheet forming the inner side of the sleeve, a water resistant sheet forming the outer side thereof, and an absorber interposed therein, The present invention is characterized in that the two-flap absorber has lower rigidity than the main absorber and is not joined to the inner surface of the sleeve.

In the present invention, the term “water resistance” of the sheet forming the outside of the sleeve means that the sheet is water impermeable or water repellent.

[0007]

[Action]

 When bodily fluid is excreted inside the diaper and flows in the lateral direction, it passes through the water permeable sheet of the second side flap and is absorbed by the absorber inside the flap. The outer side of the second side flap is a water-impermeable or water-repellent sheet, which prevents body fluid of the absorbent from leaching and laterally leaking.

[0008]

【Example】

 The details of the present invention will be described below with reference to the accompanying drawings.

1A and 1B are a perspective view showing a shape of a disposable diaper 1 according to the present invention when worn, and a perspective view showing the shape of the disposable diaper 1 when it is unfolded into a flat shape. Is. In the figure, a diaper 1 includes a water-permeable top sheet 2, a water-impermeable back sheet 3, and a diaper main body 1A composed of an absorbent body 4 interposed between these two sheets 2 and 3, and outwardly from both side edges of the main body 1A. The first side flap 5 is provided so as to extend, and the second side flaps 6 and the like are provided on both side edges of the main body 1A so as to stand upright on the inner surface side of the diaper 1 and extend in the longitudinal direction thereof. Further, the diaper 1 has an elastic member 7 around the front / rear waist and a fastener tape 8 on the side around the back waist.

FIG. 2 is a sectional view taken along line XX in FIG. 1, showing an embodiment of the inner flap 6 according to the present invention. In this figure, the top sheet 2 and the back sheet 3 extend outward from each side edge of the absorber 4 to form a pair of first side flaps 5. On the inner surface side of the diaper 1, there is another second side flap 6 slightly inside the flap 5. The flap 6 is composed of a sleeve 6A whose inside is formed by a part of the topsheet 2 and whose outside is formed by a water-impermeable sheet 11, and an absorbent body 10 which is provided inside thereof, and these sheets are the longitudinal sides of the diaper 1. The top sheet 2 and the water-impermeable sheet 11 are joined to each other at a joining line 12 extending in the same direction, and are joined to the back sheet 3 at a joining line 13 also extending in the longitudinal direction. The rigidity of the absorbent body 10 is about ⅕ to ⅔ of that of the absorbent body 4, and is not joined to the inner surface of the sleeve 6A at all. A strip-shaped elastic member 9 is joined to the inside of the top of the sleeve 6A while stretching. The second side flap 6 has its front and rear ends in the longitudinal direction tilted inwardly of the diaper 1 and joined to the top sheet 2 (see (B) in FIG. 1), but it is tilted outwards to cause the first side flap 5 to fall. It can also be bonded to the upper surface of. Such a second side flap 6 is erected on the inner surface by the contraction action of the elastic member 9.

FIG. 3 shows an example in which both sides of the absorbent body 4 are bent to the inner surface side of the diaper 1 and applied to the absorbent body 10 of the flap 6.

FIG. 4 shows the structure of the second side flap 6 by a part of the sectional view taken along line XX of FIG. An opening 14 is provided in a part of the top sheet 2 used inside the sleeve 6A to improve water permeability.

In FIG. 5, the inner side of the sleeve 6 A is made up of a water-permeable sheet 15 and the outer side thereof is made up of a water-impermeable sheet 11, and both sheets 11 and 15 are joined by a joining line 12, and a top portion is joined by a joining line 13. It is joined to the sheet 2 or the back sheet 3. The material of the water permeable sheet 15 may be the same as or different from the material of the top sheet 2.

In the second side flap 6, the absorbent body 10 may be made of the same material as the absorbent body 4, for example, crushed pulp, a mixture of crushed pulp and a superabsorbent polymer, tissue paper, or the like. Nonwoven fabric, perforated plastic film, plastic net, or the like can be used for the water permeable sheet 15. If necessary, these may be hydrophilic materials or may be hydrophilically treated materials. Generally, a plastic film is used for the water-impermeable sheet 11, but it is also possible to use a water-repellent woven or non-woven fabric. For other configurations of the diaper 1 and various materials related thereto, known or well-known techniques can be appropriately used.

[0015]

[Effect of the device]

 In the diaper according to the present invention, the body fluid flowing in the lateral direction is absorbed by the absorber interposed in the flap, and the outer side of the flap is made of the water resistant sheet, so that the lateral leakage of the body fluid can be sufficiently prevented.

In particular, since the absorber has a lower rigidity than the main absorber and is interposed in the inside of the sleeve which is the flap without being joined, the flap has the absorber. Despite this, the sleeve sufficiently gathers due to the contracting force of the elastic member of the flap, and the flap easily stands up on the wearer's skin side and adheres to the skin. Therefore, the side leakage can be prevented more sufficiently.

[Brief description of drawings]

1A is a perspective view of a diaper in a worn state, and FIG. 1B is a perspective view of a developed diaper.

FIG. 2 is an XX diagram of FIG. 1 showing an embodiment of a second side flap.

FIG. 3 is an XX diagram of FIG. 1 further showing one embodiment of the second side flap.

FIG. 4 is a second example of use of a top sheet having openings.
The partial perspective view of a side flap.

FIG. 5 is an XX diagram of FIG. 1 showing a further different embodiment of the second side flap.

[Explanation of symbols]

 1 Diaper 1A Main body 2 Topsheet 3 Backsheet 4,10 Absorber 5 1st side flap 6 2nd side flap 6A Sleeve 11 Water resistant sheet 15 Water permeable sheet

Claims (1)

[Claims for utility model registration] [Claim 1] A main body having an absorbent body interposed between a water-permeable top sheet and a water-impermeable back sheet, and at least extending outward from each side edge of the main body. A first side flap made of the back sheet, and an elastic member formed in a sleeve between the vicinity of each side edge and the outer edge of each first side flap, extending in the longitudinal direction, and attached to the sleeve. A disposable diaper having a second side flap that rises inside the diaper due to a contracting force, wherein the second side flap forms a water-permeable sheet that forms the inside of the sleeve, a water-resistant sheet that forms the outside thereof, and the inside thereof. And an absorber interposed between the second
The diaper is characterized in that the flap absorber has a lower rigidity than the main body absorber and is not joined to the inner surface of the sleeve.