Patent ID: 6984631

Claim:
A method of producing a fiber comprising a thermoplastic cellulose composition, wherein the method comprises: spinning out a thermoplastic cellulose mixed ester composition, having a melt viscosity determined at 200° C. and at a shear rate of 1000 sec −1 of 50 to 300 Pa·sec, and a melt tension of 0.1 to 40 mN at the time of take-up at 200° C. and 100 m/min, at a melting temperature of 180 to 240° C.; converging the fiber with an oiling agent or water applied at a distance of 0.5 to 5 m from the bottom of a nozzle; taking up a resultant yarn by a godet roller under a spinning tension of 0.1 to 3.0 mN/dtex; and then winding the yarn on a package.