Patent ID: 7303710

Claim:
A method for extruding a continuously molded body for producing a filament or a staple fiber from an extrusion solution containing water, cellulose and tertiary amine oxide, the method comprising passing the extrusion solution through a plurality of extrusion ducts of at least one extrusion head to an extrusion duct orifice, the extrusion ducts being arranged in a predetermined number of rows, extruding the extrusion solution through the extrusion duct orifices at an extrusion rate v to produce an extruded, continuously molded body; passing the extruded, continuously molded body through an air gap, wherein the extrusion rate v in m/min is a function of the number of rows r the fiber titer T in dtex, and an operational parameter B, and is given by v=B·T 0.33 ·10,000·(1 /r 2 ), where the operational parameter B has a value of not more than 4.