Patent ID: 8673097
Filing Date: 2014-03-18
Classification: A44B,D04H,Y10T

Abstract:
1. A method of making a sheet-form loop product, the method comprising placing a layer of staple fibers 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; passing the substrate and the fibers through a nip defined between a roll and a hot can such that the fibers on the first side of the substrate are fused together to anchor the exposed loops, while substantially preventing fusion of the fibers extending from the second side of the substrate, wherein the roll has a compliant rubber surface, and the complaint rubber surface and the hot can cooperate to apply a uniform pressure across the first side of the substrate; and cooling the compliant rubber surface of the roll by circulating liquid coolant through a core about which the rubber surface is positioned and directing air onto the rubber surface, wherein the loop product has an overall weight of less than about 2 ounces per square yard.