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US 9,872,542 B2Granted
Loop-engageable fasteners and related systems and methods
AssigneeVelcro BVBA
InventorsJames R. Barker, Christopher M. Gallant
Life of this patent
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Abstract
A method of making a sheet-form loop-engageable fastener product includes placing a layer of staple fibers on a first side of a substrate, needling fibers of the layer through the substrate to form loops extending from a second side of the substrate, removing end regions from at least some of the loops to form stems, and forming loop-engageable heads at free ends of at least some of the stems.
Claims27
A method of making a sheet-form loop-engageable fastener product, the method comprising
- placing a layer of drawn staple fibers having a titer of 60-600 dtex on a first side of a substrate;
- needling fibers of the layer through the substrate by penetrating the substrate with needles that drag portions of the fibers through the substrate during needling, leaving exposed loops of the fibers extending from a second side of the substrate;
- removing end regions from at least some of the loops to form stems;
- and
- forming loop-engageable heads at free ends of at least some of the stems.
2 more elements
Dependencies are inferred from the claim text.