The present invention provides continuously crimped propylene polymer nonwoven fabrics as well as processes for forming crimped multicomponent propylene polymer fibers by melt-attenuating extruded multicomponent fibers with heated or unheated air wherein the fibers spontaneously crimp without the need...http://www.google.de/patents/US6454989?utm_source=gb-gplus-sharePatent US6454989 - Process of making a crimped multicomponent fiber web