Needling loops into carrier sheets
AssigneeVelero Industries B.V.
InventorsGeorge A. Provost, James R. Barker, Howard A. Kingsford
Life of this patent
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Abstract
A sheet-form loop product includes a flexible paper substrate and a layer of staple fibers disposed on a first side of the substrate, exposed loops of the fibers extending from holes through the substrate to a second side of the substrate, with bases of the loops being anchored on the first side of the substrate. The loops can be fastening loops. The product is formed by needling the fibers through the paper and then bonding the fibers. Examples include loop fastener materials, towels, abrasive scrubbing pads and sanding materials.
Claims9
A method of making a sheet-form loop fastener product, the method comprising
- placing a layer of staple fibers against a first side of a flexible paper substrate;
- needling fibers of the layer through the paper substrate by piercing the substrate with needles that drag portions of the fibers through holes formed in the paper substrate during needling, forming loops of the fibers extending from the holes on a second side of the paper substrate;
- selecting needling parameters so that the loops have a size and structure selected to engage a field of corresponding male fastener elements;
- and
- anchoring fibers forming the loops sufficiently to resist pull-out loads caused by releasable engagement with the male fastener elements.
Dependencies are inferred from the claim text.