Stretchable fastener products are formed by providing a sheet-form fastener tape, slitting the fastener tape to form longitudinally extending bands of fastener tape and separating the longitudinally extending bands to space the fastener tape bands transversely apart. The spaced bands are attached to...http://www.google.es/patents/US7223314?utm_source=gb-gplus-sharePatente US7223314 - Stretchable fastener
