JP2511455Y2 - Diaper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open-type diaper, in particular, a disposable diaper, which fastens front and rear waist regions together.

[0002]

2. Description of the Related Art 57-185705 (hereinafter referred to as the first
In order to fasten both sides of the front and rear hips to each other, in addition to the adhesive tape (fixing tape) extended outward from each side of the back hips, Disclosed is a diaper tape fastener provided with an adhesive surface that is joined to the outer surfaces of both sides around the front waist.

In Japanese Patent Laid-Open No. 63-21903 (hereinafter, referred to as a second technique), in order to fasten both side portions around the front and rear waists to each other, adhesive tapes extended outward from both side portions around the rear waist. In addition to the (outer side fastening means), there is disclosed a diaper in which an adhesive surface or the like (inner side fastening means) that is joined to the inner surfaces of both sides of the front waist is provided on the outer surfaces of both sides of the front waist.

The first and second techniques are based on adhesive tapes (hereinafter,
The first fastening means) is joined to the outer surfaces of both sides of the front waistline to prevent the front and back waistlines or one of them from slipping down from the body. This is one that is joined to the inner surfaces of both side portions around the side waist (hereinafter, referred to as second fastening means).

[0005]

According to the second technique, it is taught that the second fastening means may consist of layers of material which are entangled in the fibers of the diaper topsheet.
The layer of this material is considered to mean the well-known Velcro (trademark) or Velcro (trademark), which is used as a fastening means for the front and rear waist of a disposable diaper, in addition to adhesive tape. Since it is already known to use these Velcro or Velcro tapes, it is not a new idea.

Generally, a top sheet having a small basis weight and a low density is used in order to obtain economy, liquid permeability, air permeability, flexibility, etc. Therefore, the top sheet is used as an area surface for engaging Velcro or Velcro. If the seat is used as it is, it cannot be sufficiently engaged, and the engagement may be released during wearing of the diaper.

According to this invention, one of the second fastening means is made of a material such as velcro or a magic tape, and the other surface of the second fastening means is made of a fibrous material such as a top sheet. However, it is an object to configure the mating surface so that even the fibrous material can be sufficiently engaged with a material such as Velcro or Velcro.

[0008]

According to the present invention, there is provided a first fastening means extending outwardly from both side ears around the rear waist, an inner surface of the both ears inside the first fastening means, and Assuming that the diaper is provided with the second fastening means on at least one of the outer surfaces of both sides around the front waist, the diaper is characterized by the following points.

That is, the second fastening means includes a first engaging portion in which engaging projection groups are formed on outer surfaces of both sides of the front waistline, and the rear waistline inside the first fastening means. And at least the inner surfaces of both side ears are wrinkled by lateral expansion and contraction to engage the first engaging portion with the second engaging portion.

[0010]

[Operation] When wearing the diaper, first, the second fastening means,
Next, the first fastening means is used to fasten both sides of the front and rear hips to each other. By fastening in this manner, the front and back waistline is fixed around the waist of the wearer by the first and second fastening means, and therefore the front and back waistline or one of them does not lower during wearing. Particularly, since the engagement projection group that constitutes the first engagement portion of the second fastening means engages with the wrinkle generation surface that constitutes the second engagement portion of the second fastening means, the engagement is reliable, The front and rear waistlines are relatively strongly supported by the engagement, and proper wearing of the diaper is maintained even if the relative strength of the front and rear waistlines by the first fastening means is weak.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the diaper according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the diaper main body 1 is
Liquid-permeable inner sheet 2 made of non-woven fabric, liquid-impermeable outer sheet 3 made of plastic film or a laminate sheet of this and non-woven fabric, and inner-outer sheet made by mixing pulverized pulp with super absorbent polymer particles It is composed of a liquid-absorbent panel 4 which is interposed between the front and rear waist regions 5, 6
Are formed with ears 5a and 6a projecting on both sides of. The elastic member 7 that expands and contracts in the lateral direction between the inner and outer sheets 2, 3 in the rear waistline 6 of the diaper main body 1, and the leg direction between the inner and outer sheets 2, 3 in the legs of the diaper main body 1. The elastic members 8 that expand and contract to are respectively interposed under the extension in the length direction.

The first fastening means is constructed by attaching the adhesive tape 9 to the both side ears 6a of the rear waistline 6 so as to extend outward. A band-shaped sheet 10 made of a plastic sheet is attached to the outer surface of the front waistline 5 for detachably joining the adhesive surface 9a of the adhesive tape 9. The strip-shaped sheet 10 is provided to reinforce the outer sheet 3 in the area where the adhesive surface 9a is attached and detached, and to indicate the position to join the adhesive surface 9a according to the waist size of the wearer.

A first engaging portion 11 is provided on the outer surface of the front waistline 5 in the vicinity of both side ears 5a adjacent to the longitudinal end of the belt-shaped sheet 10. The first engagement portion 11 is the same as or similar to a known Velcro (trademark) or magic tape (trademark), and the engagement projection group 1 having a hook portion formed at the tip thereof.
Have two. Inner and outer surface sheets 2 and 3 on both side ears 6a of the rear waistline 6 and inside the adhesive tape 9
An elastic material 13 that expands and contracts in the lateral direction is interposed between the parts while extending in the lateral direction (see FIG. 2), and the second engaging part 14 that contracts the part and generates multiple vertical wrinkles. Is provided. By thus providing the first and second engaging portions 11 and 14, the second fastening means is configured. Elastic material 13
For example, a flexible material such as polyurethane foam is used, and is fixed to at least the inner surface of the inner surface sheet 2 with an adhesive. The inner surface of the second engaging portion 14 may be only that portion of the inner sheet 2, but other fibrous materials (including porous or reticulated material) may be attached to reinforce the portion. Good.

During and during wearing of the diaper, the rear waistline 6 receives tension in the waistline direction due to the operator pulling and contracting the elastic member 7. At this time, if the contraction of the elastic material 13 is hindered, there is a possibility that sufficient vertical wrinkles do not occur on the inner surface of the second engaging portion 14. Therefore, it is preferable that the contraction stress of the elastic material 13 is made stronger than that of the elastic member 7.

The adhesive tape 9 uses a known material such as kraft paper or high-quality paper or a laminated sheet of a non-woven fabric and a plastic film as a base material, and a pressure-sensitive adhesive, such as a known hot melt material, is used for the base material. A type of adhesive is applied to form the adhesive surface 9a. Adhesive surface 9a
In order to protect this, a known release tape (not shown)
Needless to say, it is necessary to temporarily wear.

When wearing a diaper, first of all
The second engaging portion 14 is pressed against the engaging portion 11 so that the engaging projection group 1
2 is engaged with and fixed to the fibers on the wrinkle-generating surface of the second engaging portion 14, and then the adhesive surface 9a of the adhesive tape 9 is applied to the strip-shaped sheet 10.
The front and back waistlines 5 and 6 are fastened to each other by joining and fixing to each other.

[0018]

According to the diaper of the present invention having the above-described structure and operation, the front and rear waistlines of the diaper are relatively supported by the first and second fastening means. By lowering one side, the leg circumference of the diaper does not come into close contact with the wearer's leg circumference and leakage of excrement can be prevented.

Particularly, in the second fastening means, the first engaging portion is constituted by the engaging projection group, while the second engaging portion is constituted by the wrinkle generating surface, so that the engaging projection group is formed by the wrinkle generating surface. Securely engages.
Therefore, the support is maintained more reliably, and even if the wearer moves the body to some extent, the front and rear waist or one of the waist does not fall, and the leakage is prevented more effectively. To be done.

[Brief description of drawings]

FIG. 1 is a perspective view of a diaper with a part thereof broken away and one side portion of a rear waist region being opened.

FIG. 2 is an enlarged sectional view taken along line XX of FIG.

[Explanation of symbols]

 1 diaper main body 2 inner sheet 3 outer sheet 4 panel 5 front waistline 6 rear waistline 5a, 6a ears 9 adhesive tape 9a adhesive surface 11 first engaging portion 12 engaging protrusion group 13 elastic material 14 second engaging Department

Claims (5)

(57) [Scope of utility model registration request] 1. A first fastening means extending outwardly from both side ears around the rear waist, an inner surface of the both ears inside the first fastening means and an outer surface of both sides around the front waist. A diaper having a second fastening means provided on at least one side thereof, wherein the second fastening means includes a first engagement portion having engagement projection groups formed on outer surfaces of both side portions around the front waist, and the first engagement portion. At least the inner surfaces of both side ears around the rear waist, which are inside the fastening means, are configured by a second engaging portion that causes wrinkles by lateral expansion and contraction to engage with the first engaging portion. Said diaper characterized by being. 2. The second engaging portion is composed of at least a fibrous material forming an inner surface and a laterally stretchable elastic material positioned on the outer surface of the fibrous material. Diaper described in. 3. A fibrous liquid-permeable inner sheet, a liquid-impermeable outer sheet, and a liquid-absorbent panel interposed between these sheets have the ears on both sides of the rear waistline. An diaper is formed, and an elastic material that contracts at least the inner sheet portion in the lateral direction to generate wrinkles is interposed between the inner and outer sheet portions in a given region of the both ears around the back waist. Accordingly, the diaper according to claim 1, wherein the second engaging portion is configured. 4. The group of locking projections is formed by projecting the group of fibrous projections from the upper surface of a synthetic fiber base and forming locking parts at the tips thereof, and the lower surface of the base is provided on both sides of the front waistline. The diaper according to claim 1, wherein the diaper is provided by being joined to the outer surface of the region. 5. The diaper according to claim 1, wherein the second fastening means is composed of an adhesive tape having an inner surface coated with an adhesive.