JPH0548922U - Disposable diaper - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a disposable diaper that surely prevents leakage of urine and feces and that is comfortable to wear and that does not cause the absorbent body to warp or lose its shape. [Structure] The absorber 3 is provided between the top sheet 1 and the back sheet 2.
In the disposable diaper having, a first flap 4 comprising a back sheet or a composite sheet made of a non-woven fabric and the like and having a stretchable elastic body 5 at a tip thereof is folded back onto the absorbent body, and the surfaces of both longitudinal end portions are While adhering on the sheet,
At least 50m from the longitudinal centerline of the diaper you are using
As the base end on the surface sheet on the absorber outside of m or more,
A disposable diaper having a second flap provided with a stretchable elastic body 7 at its tip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disposable diaper. More specifically, the present invention relates to a disposable diaper with improved leakage and comfort.

[0002]

[Prior Art]

 Conventionally, a known disposable diaper has a back sheet that extends outward from both side edges in the longitudinal direction of the absorbent body, and has flaps having elastic elastic bodies at the edges folded back to the upper surface of the absorbent body. (JP-A-59-25741). This type of diaper aims to enhance the leakproof effect by creating a pocket structure with flaps.

[0003]

[Problems to be solved by the device]

 However, in these diapers, if urine or feces jump over the flaps and leaks occur, or even if the urine stops at the flaps, the urine is not absorbed and retained and only accumulates in the pocket. There are problems such as leakage and discomfort to the wearer due to the accumulation of urine in the pocket. In addition, since the position of the absorbent body is easily moved, there is a problem in that the absorbent body is liable to be displaced due to the positional deviation when the wearer moves, and the absorbent body is likely to be twisted or deformed.

Therefore, in a conventional disposable diaper in which a flap having a stretchable elastic body at the end, which is composed of a back sheet that extends outward from the longitudinal side edge of the absorbent body, is folded back to the upper surface of the absorbent body, Although it was difficult to say that it has sufficient performance in terms of leakage, wearing, wearing and absorbent body deformation, and shape loss, the present invention aims to obtain a disposable diaper with the above drawbacks improved. .

[0005]

Means for Solving the Problems The inventors of the present invention have made extensive studies in order to improve the above-mentioned problems, that is, leakage, a feeling of wearing, distortion of the absorbent body, and deformation of the absorbent body, and as a result, the present invention has been accomplished. It was

The present invention comprises a liquid-permeable top sheet and a liquid-impermeable back sheet, and a back sheet having an absorber between them and extending outward from a side edge portion of the absorber. Alternatively, a stretchable elastic body is provided at the front end of the first flap made of a composite film composed of the back sheet and a non-woven fabric, and the first flap is folded back on the absorbent body, and the length of the folded back portion is increased. In a disposable diaper whose both ends in the direction are fixed on the surface sheet on the absorbent body, a second flap having an elastic body arranged at least in the tip end region is provided on both sides of the inner diaper of the first flap. The diaper is a disposable diaper characterized in that the base end portion of the second flap is on the absorbent body outside the longitudinal centerline of the diaper by at least 50 mm or more.

According to the present invention, the urine and feces that are about to flow out are to be stopped by the second flap as much as possible. The urine and loose stools stopped by the second flap are absorbed and held by the absorbent body below the urine, so that they do not flow out again and do not cause discomfort to the wearer. In addition, even if it jumps over the second flap, it can be stopped by the first flap, and the leakproof effect is extremely high.

[0008] Furthermore, compared to the conventional diaper having a pair of flaps having a stretchable elastic body at the distal end, the two sets of flaps of the present invention are more closely attached to the wearer to reduce the displacement of the diaper. Therefore, the absorber does not easily move, and thus leakage does not easily occur. Moreover, the reason why the absorbent body does not twist or lose its shape and the absorbent body does not move easily is because the base end of the second flap is on the absorbent body, and the absorbent body is It is understood that it is because of being attracted.

[0009]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the drawings, but the following embodiments do not limit the present invention.

The diaper of the present invention may be fixed with a known diaper cover, or a band, a tape, fixing pants or the like may be used.

The diaper of the present invention has a topsheet 1, a backsheet 2, and an absorber 3 between them. As the topsheet 1, a liquid-permeable non-woven fabric, a woven fabric, a porous plastic film, or the like is used. The backsheet 2 is made of a liquid impermeable polyethylene film or the like. The absorber 3 is sandwiched between the topsheet 1 and the backsheet 2, and is made of cotton-like pulp, absorbent paper, a superabsorbent polymer substance, or the like. The shape of the absorber 3 may be rectangular or hourglass-shaped.

The first flap 4 is composed of a back sheet alone or a back sheet, and a composite material such as a non-woven fabric or a film which is a member different from the top sheet or the front sheet, and the top end is folded to form a loop, and the inside thereof is formed. The stretchable elastic body 5 is fixed by the hot melt adhesive 9. Further, the first flap 4 is folded back on the absorber and fixed to the top sheet near both longitudinal ends of the diaper. Since the first flap 4 stands up when worn, it is possible to physically prevent leakage of urine or feces. The height of the first flap is 10 to 100 mm when worn, and more preferably 20 to 60 mm. The stretchable elastic body 5 is made of a natural thread rubber, a synthetic thread rubber, a urethane foam, a urethane film, etc., which are usually used for diapers when used and used alone or in plural.

The second flap 6 is made of a non-woven fabric or the like, is located on both sides of the inner side of the first flap 4, and its base end is installed on the absorber. Like the diaper of the embodiment shown in FIGS. 1 to 3, both side edges of the topsheet 1 may be bent so as to wrap the stretchable elastic body 7 inside, or FIGS. As in the diaper of another embodiment shown in FIG. 6, the stretchable elastic body 7 may be wrapped inside with a nonwoven fabric which is a member different from the topsheet 1. The second flap 6 is installed along the longitudinal direction of the diaper, and the base end portion 8 thereof is fixed with a Holtmelt adhesive 19. Further, it is desirable that the base end portion 8 is at least 50 mm or more outside from the longitudinal centerline 10 of the diaper.

Further, the second flap 6 is laid down in the outer or inner direction of the diaper at both longitudinal end portions of the diaper, and is fixed by the hot melt adhesive 29. 1 to 3 show the former embodiment, and FIGS. 4 to 6 show the latter embodiment. As a method for fixing the base end portion and both end portions in the longitudinal direction, there are a method using a hot-melt adhesive, a heat seal welding method, an ultrasonic welding method, and the like, alone or in combination.

The second flap 6 is preferably water repellent in order to enhance the leakproof effect. Moreover, the stretchable elastic body 7 may be the same as that used for the first flap 4. Like the first flap, the second flap also stands up when worn. The height of the second flap 6 is preferably 5 to 60 mm, more preferably 20 to 50 mm when worn.

[0016]

[Effect of the device]

 According to the present invention, it is possible to provide a diaper that can be surely prevented from leaking urine or feces, is comfortable to wear, has no swelling of the absorber, and has a good shape.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line XX ′ of FIG. 1 when worn.

FIG. 3 is a sectional view taken along line YY ′ or ZZ ′ of FIG.

FIG. 4 is a plan development view of another embodiment of the present invention different from that shown in FIG.

5 is a cross-sectional view taken along line XX ′ of FIG. 4 when worn.

6 is a sectional view taken along line YY ′ or ZZ ′ of FIG.

[Explanation of symbols]

1 ... Top sheet, 2 ... Back sheet, 3 ... Absorber, 4 ... First flap, 5 ... Stretchable elastic body,
6 ... Second flap, 7 ... Stretchable elastic body, 8 ...
.Base end, 9, 19, 29 ... Holtmelt adhesive,
10 ... longitudinal centerline

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takuya Yamaguchi Inventor Takuya 1-10-6 Shinonome, Koto-ku, Tokyo Oji Paper Co., Ltd. Research Center

Claims (3)

[Scope of utility model registration request] 1. A liquid-permeable topsheet (1) and a liquid-impermeable backsheet (2), and an absorber (3) between them, which extends outward from a side edge portion of the absorber. A stretchable elastic body (5) is provided at the tip of a first flap (4) made of the back sheet or a composite film made of the back sheet and a non-woven fabric or the like, and the first flap is placed on the absorber. In a useable diaper, which is folded back to, and both longitudinal ends of the folded back portion are fixed on the surface sheet on the absorbent body, on both side portions of the inner diaper of the first flap (4),
At least the distal end region has a second flap (6) in which an elastic elastic body (7) is arranged, and the base end of the second flap is
A diaper for use, characterized in that it is on the absorbent body at least 50 mm outside the longitudinal centerline of the diaper. 2. The disposable diaper according to claim 1, wherein the second flap (6) comprises a topsheet. 3. The disposable diaper according to claim 1, wherein the second flap (6) is a member separate from the topsheet.