Patent ID: 6576034
Filing Date: 2003-06-10
Classification: A24D,D01D,D04H,Y10S

Abstract:
The product of a fiber spinning process comprising the steps ofproviding at least two independent sources of polymer materials, feeding said polymer materials from each of said independent sources into a spinning device including at least one element defining a plurality of spinneret orifices, maintaining said polymer materials in mutually separated distribution paths in said spinning device at least until said polymer materials approach the inlets to the spinneret orifices in said element, flowing at least some polymer material from one of said independent sources into selected ones of the spinneret orifices in said element and flowing at least some polymer material from another of said independent sources into different selected spinneret orifices in said element under conditions causing extrusion from the spinneret orifices of said element of a homogeneous web of fibers, at least some of said fibers formed from said web of fibers having different characteristics from other fibers formed from said web of fibers, wherein said polymer materials are fed from said independent sources to the spinning device under different speeds and all of said fibers in said web of fibers are withdrawn from the spinneret orifices at the same speed, whereby individual fibers in said web of fibers are of different denier from other fibers in said web of fibers, and the ratio of said individual fibers and said other fibers being substantially uniform throughout said web of fibers.