Anchoring loops of fibers needled into a carrier sheet
First Claim
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1. A method of forming a loop product, the method comprising needling polymeric fibers through a substrate to form hook-engageable loop structures of the fibers extending from one surface of the substrate;
- and then applying heat and pressure to locally soften and bond polymer of the fibers directly to the substrate and adjacent fibers, thereby anchoring the loop structures to resist fiber pullout under fastening loads.
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Abstract
Methods of forming a loop product are provided. One method includes (a) needling polymeric fibers through a substrate to form hook-engageable loop structures of the fibers extending from one surface of the substrate; and then (b) using heat and pressure to locally soften and bond polymer of the fibers directly to the substrate and adjacent fibers, thereby anchoring the loop structures to resist fiber pullout under fastening loads.
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Citations
23 Claims
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1. A method of forming a loop product, the method comprising
needling polymeric fibers through a substrate to form hook-engageable loop structures of the fibers extending from one surface of the substrate; - and then
applying heat and pressure to locally soften and bond polymer of the fibers directly to the substrate and adjacent fibers, thereby anchoring the loop structures to resist fiber pullout under fastening loads. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- and then
Specification