An improved process for forming a mechanical fastening prong and the prongs produced thereby. The prongs are produced by deposition of a heated, thermally sensitive material onto a substrate, which is transported at a differential velocity relative to the heated material being deposited to form the prongs....http://www.google.es/patents/US5116563?utm_source=gb-gplus-sharePatente US5116563 - Process for producing a mechanical fastener
