Disposable diaper that is fastened by contact between overlapping adhesive patches
First Claim
1. A refastenable disposable diaper comprising a composite including an absorbent core encased between a liquid-permeable user-contacting topsheet and an outer shell of thin thermoplastic film, the back of the composite having a pair of ears that overlap ears on the front of the diaper when the diaper is wrapped around a person, wherein said diaper has outer fastening means for holding the diaper in its wrapped position, further comprising an inner fastening means comprising peelable adhesive patches on faces of the back and front ears of the diaper that overlap when the diaper is in its wrapped position, and which places the patches in contact with each other, which patches will form bonds to each other that have resistance to shear forces and can be peeled apart by hand after 2 hours at room temperature.
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Accused Products
Abstract
A disposable diaper can be fastened securely around a person and be refastenable when it has an adhesive patch on the faces of corners at the back of the diaper, each of which patches contacts an adhesive patch on the front of the diaper, which patches form bonds to each other that have strong resistance to shear forces, can easily be peeled apart after 2 hours at room temperature and do not adhere either to ordinary packaging materials or to nonadhesive surfaces of the diaper. All of the adhesive patches can be cut from a single adhesive tape that has a flexible backing, one face of which bears a layer of the peelable adhesive while the other layer bears a layer of an adhesive that forms a strong, permanent bond to the diaper.
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Citations
16 Claims
- 1. A refastenable disposable diaper comprising a composite including an absorbent core encased between a liquid-permeable user-contacting topsheet and an outer shell of thin thermoplastic film, the back of the composite having a pair of ears that overlap ears on the front of the diaper when the diaper is wrapped around a person, wherein said diaper has outer fastening means for holding the diaper in its wrapped position, further comprising an inner fastening means comprising peelable adhesive patches on faces of the back and front ears of the diaper that overlap when the diaper is in its wrapped position, and which places the patches in contact with each other, which patches will form bonds to each other that have resistance to shear forces and can be peeled apart by hand after 2 hours at room temperature.
Specification