Lightweight, non-woven loop products for hook-and-loop fastening are disclosed, as are methods for making them and end products employing them. The products are non-woven webs of entangled fibers of substantial tenacity, the fibers forming both a sheet-form, bonded web body and hook-engageable, free-standing...http://www.google.com.au/patents/US6342285?utm_source=gb-gplus-sharePatent US6342285 - Fastener loop material, its manufacture, and products incorporating the material
