JPH01246401A - Throwaway diapers - Google Patents

Abstract

PURPOSE:To obtain the title diaper which is high fitted, because the binding means on both sides of the hip are composed transversely of the middle part of strong peel force and two edge parts of weak peel. CONSTITUTION:In the binding means 1 on both sides of the hip part, the part of high peel force 3 is formed between the parts of low peel force 2 to cover the hip of the user with the whole part of waist side flaps of the diaper. The diaper is fixed to the waist of the user with the high peel part. In the meantime, the weak peel parts inhibit the slippage of the diaper during application, and makes it smooth to peel off the binding means.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disposable diaper having fastening means for securing it to the waist of the wearer. More specifically, the present invention relates to a fastening means that is easier to use and has improved waist fit.

Conventional technology and its problems Adhesive tape has been conventionally used as a fastening means for disposable diapers.This adhesive tape is installed in the form of tabs on both sides of the hat of the disposable diaper body, and the adhesive tape tabs are placed opposite each other. It is generally attached to a liquid-impermeable back sheet located on the waist of the wearer and fixed to the waist of the wearer. In addition, a release tape is provided to make the adhesive tape tab easier to use, and a so-called target tape is provided to improve reusability. However, when wearing these diapers, the overlapping part of the diaper body is completely free, and in most cases, it leaks when worn, causing urine or feces to leak, or the adhesive tape comes into contact with the skin and causes skin irritation. There are problems such as damage to the

It is an object of the present invention to improve the drawbacks of the conventional fastening means for disposable diapers and to provide a fastening means that is easier to use and has a better fit.

Means to solve problems In order to achieve the above object, the present invention was achieved as a result of intensive research.

In other words, in a disposable diaper that has a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body located between them, and fastening means for fixing to the wearer at the waist, the fastening means is attached to both the waist inside the diaper body. The object of the present invention is achieved by providing a high release part having a strong release force between the low release parts having a weak release force in the lateral direction in the side portions.

In other words, the high release part allows the wearer to fix the diaper at the waist, and the low release part inside the high release part prevents the overlapping parts from shifting during wear, thereby preventing leakage of excrement. The low peeling portion outside the high peeling portion enables smooth peeling when the main fastening portion is peeled off. Further, since the high peeling portion is located between the low peeling portions, the area of the high peeling portions is small due to the help of the low peeling portions, and there is an advantage that it is easy to handle during installation. Furthermore, since this fastening means is not in the form of a tape tab protruding from the diaper, the fastening means is fastened so as to gently wrap the wearer in the entire waist-side flap of the diaper, improving the fit of the wearer while wearing the diaper. It won't hurt anything.

One of the important points here is the peeling force between the low peeling area and the high peeling area. The main role of the high-peel part is to fix the diaper to the wearer, and the peel force necessary for fixing the diaper is at least 500 g / 25 mm or more, preferably 7
A force of 00 g/25 mm or more is required. On the other hand, the low-peel part mainly has a temporary fixing role, such as preventing the diaper overlapping part from shifting and making it easier to peel off the fastened part smoothly, so if the peeling force is too strong, it will become difficult to handle. Good peeling force of ~250g/25mm.

One of the more important points is the area of the low peeling area and the high peeling area. In other words, if the area of the high peeling part is too large, the fastening part will not peel off smoothly and will tend to stick in unnecessary places when worn, making it difficult to use.
9d is good, and the wider the area of the entire fastening means, the more gently the fit will be able to wrap around the entire waist of the wearer, so the area should be 18cm2 or more.
If it is less than this, it is difficult to wrap the entire waist, and the area where the diaper overlaps during wear becomes large, which does not look good.

Examples of materials that can be used as the low-peel part include self-adhesives (which exhibit adhesiveness only to certain substances) and Velcro systems (so-called Velcro tape systems) with weak bonding strength; these are adhesives, etc. It has less stickiness and is excellent as a low-peel area.

On the other hand, as a highly releasable part, adhesives and Velcro systems with strong bonding strength are superior in terms of their strong releasability. When using adhesive, it is recommended to use target tape to ensure reusability.

Example The present invention will be explained in detail using the drawings.

FIG. 1 shows one embodiment of the disposable diaper of the present invention, in which a fastening section 1 is formed by providing a high release section 3 between low release sections 2, and a sub-layer on the opposing liquid-impermeable sheet surface. It has a fastening part 4 (consisting of a material capable of generating adhesive force or a Velcro-type buckle part), and these functions make it possible to provide a diaper that is easy to use, has a high fit, and is resistant to leakage of excrement.

FIGS. 2 to 4 are sectional views taken along lines AA' and BB' in FIG. 1, and show three types of fastening means. FIG. 2 shows a type in which the low peeling part is made of a self-adhesive 21, the high peeling part is made of an adhesive 31, and the sub-fastening part is made of a substance 41 that allows the self-adhesive 21 to generate adhesive force.

In FIG. 3, the low peeling part is a self-adhesive 21, the high peeling part is a Velcro type grip member 32, and the sub-fastening part is a self-adhesive 21.
1 is a type consisting of a Velcro type buckle member 42 treated with a substance capable of generating adhesive force.

FIG. 4 shows a type in which the low peeling portion is a grip member 22 with a weak peeling force, the high peeling portion is a grip member 32 with a strong peeling force, and the sub-fastening portion is a buckle member 43.

FIG. 5 shows another embodiment of the disposable diaper of the present invention.

[Brief explanation of the drawing]

Fig. 1 One embodiment of the disposable diaper of the present invention Fig. 2 to 4 A sectional view taken along lines AA' and B-B' in Fig. 1 Fig. 5 Other embodiment 1 of the disposable diaper of the present invention: Fastening portion 2 : Low peeling part 3 : High peeling part 4 : Sub-fastening part 5 : Liquid-permeable top sheet 6 : Absorber 7 : Liquid-impermeable back sheet 21 : Self-adhesive 22 : Grip member with weak fastening force 31 : Adhesive Agent 32: Grip member with strong fastening force 41: Substance that allows the self-adhesive 21 to generate adhesive force 42: Buckle member treated with a substance that allows the self-adhesive 21 to generate adhesive force 43: Buckle member r1 foot

Claims (5)

[Claims] (1) A disposable diaper that has a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorbent body located between them, and fastening means for fixing to the wearer at the waist, wherein the fastening means is inside the diaper body. Areas located on both sides of the lower back that have weak peeling force in the lateral direction (hereinafter referred to as low peeling areas)
(hereinafter referred to as high peeling area)
A disposable diaper characterized by being provided with a fastening means having. (2) The peeling force of the low peeling part is 50 to 250 g/25 mm, and the peeling force of the high peeling part is 500 g/25 mm or more,
The combined area of both peeled areas is 18cm^2 or more (one side only), of which the area of the highly peeled part is 1-9cm^
Item 1: A disposable diaper characterized by: (3) The disposable diaper according to item 1 or 2, wherein the low release part is a self-adhesive agent (having adhesive strength only to itself or a specific substance) and the high release part is an adhesive. . (4) Item 1 or 2, wherein the low peeling part is self-adhesive, and the high peeling part is a Velcro type (having a grip part and a buckle part and having a fastening force due to the intertwining thereof). Disposable diapers. (5) The disposable diaper described in item 1 or 2, wherein the low peeling portion is a Velcro type fastening means with a weak peeling force, and the high peeling portion is a Velcro type fastening means with a strong peeling force.