A method of producing a nonwoven fabric comprising spinning a set of bicomponent fibers which include an external fiber component and an internal fiber component. The external fiber enwraps said internal fiber and has a higher elongation to break value than the internal fiber and a lower melting temperature...http://www.google.fr/patents/US7438777?utm_source=gb-gplus-shareBrevet US7438777 - Lightweight high-tensile, high-tear strength bicomponent nonwoven fabrics
