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US 5,852,855 AGranted
Disposable diaper with fastener
AssigneeMinnesota Mining and Manufacturing Company
InventorsKirit C. Mody, Bernard D. Campbell
Life of this patent
Estimating the term…
Abstract
A hook fastener portion is disclosed for use in a hook and loop fastener that has a woven backing with portions of pile monofilaments projecting from its front surface providing hooks adapted for making releasable engagement with loops of the fastener. In another embodiment, a hook fastener-portion is disclosed for interengagement with an opposed, like hook fastener portion. A layer of thermoplastic material along a rear surface of the backing and the mechanical engagement of the portions of the pile monofilaments woven into the backing anchor the monofilaments in the backing, and that layer of thermoplastic material can be a hot melt adhesive used to adhere the hook fastener portion to a substrate.
Claims13
A fastener, comprising:
- a first hook fastener portion comprising a plurality of warp yarns and a plurality of weft yarns, said warp and weft yarns being interwoven to form a woven backing having front and rear major surface, a plurality of pile monofilaments having portions woven into said backing portions projecting from the front surface of said backing in a generally upright manner and having mushroom shaped heads at their distal ends, and a layer of thermoplastic material along the rear surface of said backing, with said layer of thermoplastic material and the mechanical engagement of said portions of said pile monofilaments woven into said backing with said warp and weft yarns anchoring said monofilaments in said backing, said pile monofilaments are of a larger diameter than said warp and weft yarns and include portions passing around weft yarns that protrude along the rear surface of said woven backing, and said layer of thermoplastic material is discontinuous and formed of discrete layer portions located around the protruding portions of said pile monofilaments and adhering the protruding portions of the pile monofilaments to adjacent portions of the warp and weft yarns;
- a second hook fastener portion comprising a plurality of warp yarns and a plurality of weft yarns, said warp and weft yarns being interwoven to form a woven backing having front and rear major surface, a plurality of pile monofilaments having portions woven into said backing portions projecting from the front surface of said backing in a generally upright manner and having mushroom shaped heads at their distal ends, and a layer of thermoplastic material along the rear surface of said backing, with said layer of thermoplastic material and the mechanical engagement of said portions of said pile monofilaments woven into said backing with said warp and weft yarns anchoring said monofilaments in said backing, said pile monofilaments are of a larger diameter than said warp and weft yarns and include portions passing around weft yarns that protrude along the rear surface of said woven backing, and said layer of thermoplastic material is discontinuous and formed of discrete layer portions located around the protruding portions of said pile monofilaments and adhering the protruding portions of the pile monofilaments to adjacent portions of the warp and weft yarns, such that said first hook fastener portion and said second hook fastener portion are adapted for releasable interengagement with each other, with the heads of the monofilaments of the first hook fastener portion and the heads of the monofilaments of the second hook fastener portion bypassing and engaging with each other to engage the fastener.
A hook fastener portion adapted for use with an opposed, like hook fastener portion, said hook fastener portion comprising:
- a plurality of warp yarns;
- a plurality of weft yarns interwoven with said warp yarns to form with said warp yarns a woven backing having front and rear major surfaces;
- a plurality of pile monofilaments having portions woven into said backing and portions projecting from the front surface of said backing and having heads at their distal ends adapted for releasable engagement with heads of monofilaments of the opposed hook fastener portion wherein said pile monofilaments have a density of between approximately 23 to 70 monofilaments per square centimeter of said backing;
- and
- a layer of thermoplastic material along the rear surface of said backing, with said layer of thermoplastic material and the mechanical engagement of said portions of said pile monofilaments woven into said backing with said warp and weft yarns anchoring said monofilaments in said backing, said pile monofilaments are of a larger diameter than said warp and weft yarns and include portions passing around weft yarns that protrude along the rear surface of said woven backing, and said layer of thermoplastic material is discontinuous and formed of discrete layer portions located around the protruding portions of said pile monofilaments and adhering the protruding portions of the pile monofilaments to adjacent portions of the warp and weft yarns.
2 more elements
Dependencies are inferred from the claim text.