Disposable diaper with improved tape fastener
AssigneeWeyerhaeuser Company
InventorRaymond August Van Vliet
Life of this patent
Estimating the term…
Abstract
An improved diaper fastener system has particular application to a conventional disposable diaper having a generally rectangular-shaped absorbent pad or filler disposed between a fluid-permeable top cover sheet and a thermoplastic film backing sheet. The fastener system is comprised of a pair of substantially conventional pressure-sensitive fastener tapes but having stress-accepting inserts traversing a certain distance between the release liner and a position on the fixed portion of the fastener tape. When the attachment portion of the tape is opened for use, the applied forces are at least partially accepted by the stress-accepting insert, transferring it through the release liner to the cover sheet which is stronger than the plastic film backing sheet.
Claims8
In an absorbent article of the type having a fluid-permeable body contacting top sheet, a fluid-impermeable plastic film backing sheet, and an absorbent filler disposed therebetween together with a tape fastener system along at least one edge of the article, the improvement comprising:
- at least one tape having a fixed portion attached to the plastic film backing sheet and an attachment portion having an open and closed position,
- a release liner fixed to at least a portion of the fluid-permeable top sheet in a position whereby the tape attachment portion can overlay at least part of the release liner in its closed position, and
- a stress-accepting insert member attached to and extending outwardly from the edge of the release liner around a side edge of the article to a position where it is attached to at least a portion of the fixed portion of the tape,
- said insert members being arranged and adapted to accept in-use stresses, transferring a substantial portion of them when accepted from the attachment portion of the tape to at least one material within the article that has greater strength than the backing sheet.
A pressure-sensitive tape fastener, comprising:
- a tape member having one adhesive surface and one adhesive free surface, the adhesive surface on one end thereof providing a means for its attachment to a first protion of an object, and the adhesive surface on the other end providing a means for its attachment to a different portion if the object,
- a release liner member having one surface a portion of which is releasably attached to a portion of the tape member at said one end thereof along its adhesive surface, a second portion of said one surface defining a means for fixedly attachment to said object first portion, and
- a stress-accepting insert member fixedly attached to at least a portion of said second surface of the release liner member and extending for a distance over the adhesive surface of the tape member but terminating short of said the other end thereof.
Dependencies are inferred from the claim text.