Surface fastener and paper diaper using the surface fastener

Abstract

A surface fastener having a first substrate sheet having on its front surface hook-shaped engaging elements and on its rear surface a low-adhesion adhesive double coated tape to an outer surface of which a backing sheet is adhered, and a second substrate sheet having on its front surface loop-shaped engaging elements and on its rear surface an adhesive layer to an outer surface of which a peel paper is adhered. For attaching the surface fastener to a paper diaper, the adhesive layer of the second substrate sheet is adhered to a front covering portion of the diaper, while the adhesive double coated tape of the first substrate sheet is adhered to an attachment strip of a hip covering portion of the diaper after the backing sheet is peeled off. When casting off the diaper after using, the adhesive double coated tape is separated from the first substrate sheet so as to be left on the attachment strip and then the diaper is folded, whereupon the adhesive double coated tape on the attachment strip is adhered to an outer surface of the folded diaper to wrap up the diaper.

Description

[0001] 1. Description of the Invention[0002] This invention relates to a surface fastener to be used as a fastener of a disposable paper diaper, the surface fastener being improved in its attaching means so that the paper diaper is easy to handle.[0003] 2. Description of the Related Art[0004] FIG. 10 of the accompanying drawings shows a paper diaper fastener which is disclosed in Japanese Utility Model Publication No. Hei 1-29230. In this known fastener, a plastic substrate tape 1' has on its one surface an adhesive layer 7' extending from the center to one end and a protective peel portion 8' extending from the center to the other end. On the other surface, the plastic substrate tape 1' has another protective peel portion 8' extending from the center to one end and another adhesive layer 7' extending from the center to the other end, which is a reverse arrangement to that on the one surface. The plastic substrate tape 1' is attached in a folded form to a paper diaper A' and, in use...

AI Technical Summary

Benefits of technology

[0009] A second object of the invention is to provide a surface fastener which is very simple to attach and handle with respect to a paper diaper.

[0014] A seventh object of the invention is to provide a paper diaper in which a surface fastener can be attached in a simple manner and which can be handled simply when it is to be cast off after using.

Problems solved by technology

Further, the adhesive layer 7' of the plastic tape 1' tends to touch the infant's skin which is very delicate when the diaper A' is in use, so that the infant might suffer atopic dermatitis and other skin disease.

According to the second-named conventional diaper fastener in a form of a surface fastener, since the engaging elements 3" of the surface fastener SF have a very special shape, it is inevitable to use a very complicated processing means in manufacturing the surface fastener SF, and there is a danger that the pressure-sensitive adhesive agent on the polymer tab might tough the infant's skin to cause atopic dermatitis or other skin disease when the diaper is in use.

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