Apparatus for extruding cellulose fibers

Details Apparatus for extruding cellulose fibers Apparatus for extruding cellulose fibers

2008-04-11

2011-10-04

Del Sole, Joseph (Department: 1743)

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

C425S19200R, C425S197000, C425S199000, C264S177110

Reexamination Certificate

active

08029260

ABSTRACT:
An apparatus is disclosed for extruding cellulose fibers. The apparatus includes a first member, a second member and a third member all secured together. Multiple nozzles extend outward from the first member and each is designed to direct an aqueous cellulose solution therethrough. As the aqueous solution is extruded, it is accentuated and accelerated by pressurized gas flowing through the first member and the second member and out through first openings formed in the third member. The pressurized gas at least partially surrounds each nozzle and shelters the molten filaments extruded therefrom. The third member also has multiple second openings formed therethrough which are also connected to a source of pressurized gas. The pressurized gas streams exiting each of the second openings function to keep each of the molten filaments from contacting an adjacent molten filament.

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