Patent ID: 7722347
Filing Date: 2010-05-25
Classification: B29C,D01D

Abstract:
1. A process for producing fibrous material comprising fibers, comprising steps of: providing an apparatus having a polymer extrusion body through which molten polymer is directed for delivery to an elongated polymer cavity at the lower portion of said extrusion body, and further comprising providing a die cartridge assembly positioned beneath said extrusion body and defining at least one film forming wall, said cartridge assembly defining at least one polymer passage for directing said molten polymer from said polymer cavity onto said at least one film forming wall, and further providing at least one gas passage operable to communicate with a gas source for directing pressurized gas from said gas source against said molten polymer in the form of a film for effecting formation of fibrous material comprising fibers; directing said molten polymer from said polymer cavity onto said at least one film forming wall; and supplying pressurized gas through said die cartridge assembly via said at least one gas passage against molten polymer on said at least one film forming wall in the form of a film for effecting formation of said fibrous material comprising fibers.