JPH0232259Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fastening piece that is applied to body-worn articles such as disposable diapers and simple diaper covers that are disposable in a relatively short period of time. More specifically, the present invention relates to a fastening piece having a tightening band function and a fastening function for the front and back waist portions of the article.

(Prior Art) Disposable diapers that are conventionally known and generally in practical use include pieces of adhesive tape on both ends of the front and back waist portions of the diaper body to fasten the ends when the diaper is worn. is installed. In order to protect the adhesive surface of this adhesive tape piece when it is not in use and to prevent the adhesive surface from adhering to other parts or objects, a release tape piece is formed separately. Temporarily attach it to a piece of adhesive tape, or fix a piece of release tape to the diaper,
It was necessary to temporarily attach an adhesive tape piece to this fixed release tape piece. However, forming the release tape pieces separately from the adhesive tape pieces not only increases the materials and manufacturing costs for the tape pieces, but also increases the number of steps needed to apply them to the diaper body.

Moreover, the adhesive tape pieces attached to the conventional disposable diaper body only have the function of securing both sides of the front and back waist parts of the diaper body when the diaper is worn. - It is formed relatively wide so that both ends of the dorsal waist part overlap sufficiently. In such a diaper body, in order to improve its conformity to the wearer's body, both ends of the diaper body are recessed as necessary so that the crotch area of the diaper body is narrow.
However, forming the diaper body in this manner requires high materials and manufacturing costs.

(Purpose of the invention) In view of the above-mentioned circumstances, the main purpose of the invention is to provide a waistband function and a fastening function for use in place of the adhesive tape pieces of disposable diapers that have been put into practical use in the past. An object of the present invention is to provide a fastening piece having the following properties.

Another main object of the present invention is to provide a fastening piece that does not cause problems when the waistband area comes into direct contact with the wearer's skin.

Still another main object of the present invention is to provide a fastening piece in which a release part for temporarily attaching the adhesive part is formed integrally with the adhesive part.

(Structure and embodiments of the invention) The gist of the invention is to use a sheet in which a synthetic resin sheet and a nonwoven fabric are compositely integrated by welding as a base material, and the base material has a waistband area and a fastening area. The fixing area is comprised of a release part, an adhesive part, and a non-adhesive holding part, and each of the areas and parts are sequentially provided on the upper surface of the base material from one end to the other. , the fixing area is given more rigidity than the waistband area, the adhesive part is bent on the boundary line with the mold release part and temporarily attached to the mold release part, and the adhesive part is temporarily attached to the mold release part, The length of
The fastening piece has a width of 60 to 120 mm, a width of 20 to 100 mm, and a length of the waistband region of 30 to 70 mm.

Further, the present invention will be explained based on the embodiments as follows.

FIG. 1 shows a disposable diaper as an example of an object to which the fastening piece of the present invention is applied.
This diaper body 1 includes a top sheet 2 made of non-woven fabric or the like, a back sheet 3 made of synthetic resin film or the like, an absorbent body 4 interposed between the two sheets and made mainly of pulverized pulp, and side flaps 5. and an elastic member 6 attached under extension in the longitudinal direction. The absorbent body 4 consists of a first absorbent member 8a with both side portions 7 bent inward, and a second absorbent member 8b having a width wider than the bent portions and laminated on the upper surface of the member. At both ends of the back waist part 9 of the diaper body 1, there are fastening pieces 1 of the present invention for connecting the both ends to the front waist part 10 and assembling the diaper body 1.
1 is installed.

As shown in FIG. 2, the fastening piece 11 is divided into a waistband area 12 and a fastening area 13, and the fastening area includes a release part 14, an adhesive part 15, and a non-adhesive gripping part 16. Consists of.

As shown in FIG. 3, the fastening piece 11 is made by integrally integrating a synthetic resin sheet 18 and a nonwoven fabric 19 by heat welding. The fastening area 13, that is, the mold release part 14, the adhesive part 15, and the non-adhesive gripping part 16, are made smaller than the waistband area 12 by providing embossing groups 14c, 15c, and 16c under heating. It is made rigid. The mold release part 14 may contain a known mold release agent 1 if necessary.
4b, and the adhesive part 15 is coated with a known adhesive 15b.
is coated with. In order to make the fastening area 13 rigid, in addition to the above-mentioned embossing, the synthetic resin sheet 18 and the nonwoven fabric 19 in this area are welded on the entire surface under heat and pressure, while the waistband area 12 is not welded at all, or It may be partially welded.

As shown in FIG. 4, the emboss group is not provided on the boundary line 20 between the mold release part 14 and the adhesive part 15, thereby making it easier to bend the adhesive part 15 on the boundary line. Further, for the same reason, although not shown, the emboss group may not be provided on the boundary line between the adhesive portion 15 and the non-adhesive gripping portion 16.

At least one of the release part 14, the adhesive part 15, and the non-adhesive gripping part 16, especially the gripping part 16, is colored to be distinguishable from the base color of the fastening piece 11. It is preferable. This is because when the fastening piece 11 is used, the positions of these parts can be clearly confirmed. Although various methods can be used to apply the coloring, it is preferable to mix a coloring agent with the mold release agent and the adhesive in the mold release part 14 and adhesive part 15.

The synthetic resin sheet 18 may be made of non-foamed materials or foamed materials such as foamed polyethylene, foamed polypropylene, etc., and the nonwoven fabric may be made of natural fibers such as cellulose, rayon, polypropylene, etc.
A material made of artificial fibers such as polyester alone or a mixture thereof is used.

The embossed release part 14, adhesive part 15, and non-adhesive gripping part 16 have a form in which a synthetic resin sheet 18 and a nonwoven fabric 19 are substantially integrated into a single layer by welding. However, it is sufficient that the synthetic resin sheet 18 and the nonwoven fabric 19 are compositely integrated, and may be substantially integrated into a single layer, or substantially integrated into multiple layers. It does not matter whether the person exhibits

The base material of the fastening piece 11 may be one consisting of two layers of a synthetic resin sheet 18 and a nonwoven fabric 19 as shown in FIG. As shown in FIG. A material that is bent over a length to form a four-layered fastening area is used.

As mentioned above, such a fastening piece 11 is applied to an article worn on the body such as a disposable diaper, and especially when the article is a disposable diaper, the fastening piece 11 is placed on the side where the nonwoven fabric 19 comes into contact with the wearer's skin. forced,
Moreover, the length of the diaper body protruding from the side edges of the waist portion is 60 to 120 mm, the width is 20 to 100 mm, and the length of the waistband area 13 of the fastening piece 11 is 30 to 70 mm.

Further, when the fastening piece 11 is not in use, it is bent on the boundary line between the mold release part 14 and the adhesive part 15, and the adhesive part is temporarily attached to the mold release part. In this case, if water is further applied to the upper surface of the mold release part 14 and then the adhesive part 15 is temporarily attached thereto, the releasability is further improved.

In the present invention configured as described above, the fastening piece 1
1 has a mold release part 14 and an adhesive part 15 on the same series of base materials, so there is no need to form a mold release tape piece separately as in the conventional adhesive tape piece described above. Also, since the fastening piece 11 has a waistband area 12, the body-wearing article to which the fastening piece is applied,
In particular, the main body of the disposable diaper does not have to be formed so wide that both ends of the front and back waist portions of the main body sufficiently overlap each other. Therefore, it is possible to achieve the above-mentioned intended purpose, and also to manufacture and provide body-worn articles, especially disposable diapers, having the fastening pieces 11 at a lower cost than conventional diapers. Furthermore, since the fastening area 13 is made more rigid than the waistband area 12, it is easier to operate when using the fastening piece, and the adhesive part 15 can be reliably adhesively fixed to a desired location. Even if 12 comes into contact with the wearer's skin, it will not cause pain or damage to the wearer's skin. Thus, the fastening piece of the present invention has many advantages that cannot be obtained with conventional products, and is extremely useful in practical use.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway developed plan view of a disposable diaper to which the fastening piece of the present invention is applied, Fig. 2 is a plan view of the fastening piece, and Fig. 3 is an enlarged sectional view taken along line XX in Fig. 2 showing the fastening piece. , FIG. 4 is a plan view of a fastening piece different from that shown in the second figure, and FIGS. 5A, B, and C are cross-sectional views showing examples of the base material of the fastening piece. 11... Fastening piece, 12... Waistband area, 13... Fastening area, 14... Mold release part, 15...
...Adhesive part, 16...Non-adhesive gripping part.

Claims (1)

[Claims for Utility Model Registration] (1) The base material is a sheet in which a synthetic resin sheet and a nonwoven fabric are integrated by welding, and the base material is divided into a waistband area and a fastening area. , the adhesion area consists of a mold release part, an adhesive part, and a non-adhesive gripping part, and each of the areas and parts are sequentially provided on the upper surface of the base material from one end to the other end, and the adhesion area is The base material is given more rigidity than the waistband area, the adhesive part is bent on the boundary line with the mold release part and temporarily attached to the mold release part, and the length of the base material is 60 mm to 60 mm. 120
mm, the width is 20 to 100 mm, and the length of the waistband region is 30 to 70 mm. (2) The fastening piece according to claim 1 of the utility model registration claim, in which the synthetic resin sheet is made of a foam. (3) The fastening piece according to claim 1 of the utility model registration claim, in which the nonwoven fabric is located on the wearer's skin-contacting surface in the waistband area.