Split hook fastener
Assignee3M Innovative Properties Company
InventorsJayshree Seth, Ronald Ausen, Janet Venne
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Abstract
The present invention provides a method for forming preferably a unitary polymeric hook fastener comprising a flexible backing, and a multiplicity of spaced hook elements projecting from the upper surface of the unitary backing. The hook elements each comprise a stem portion attached at one end to the backing, and a head portion at the end of the stem portion opposite the backing. The head portion projects in different directions for some adjacent hook members which adjacent hook members each have a flat face which flat faces are mutually opposing in face to face relation.
Claims16
A method of forming a hook fastener comprising providing a hook fastener strip having a thermoplastic base layer with integral upstanding hook elements having stem portions and head portions with loop engaging overhangs, cutting at least some of the hook elements along the head portion and down to the stem portion substantially to the base layer and orienting the base layer so as to separate the cut hook elements.
Dependencies are inferred from the claim text.