| 摘要 |
PROBLEM TO BE SOLVED: To provide a cellulose solution which is homogeneous even at a low temperature and to provide a method for producing a fiber produced therefrom. SOLUTION: The cellulose fiber is obtained through (A) a step for producing an N-methylmorpholine-N-oxide (NMMO) solution by dissolving 0.01-5 wt.% cellulose powder into a liquid concentrated NMMO in a low concentration, (B) a step for obtaining a homogenized cellulose solution by pouring the NMMO solution in which a small amount of the cellulose powder is dissolved and cellulose powder into a kneader and mixing, swelling and partially dissolving the cellulose without passing through a depressing process in the kneader to prepare paste and feeding the paste into the extruder, (C) a step for obtaining a multifilament by carrying out extrusion spinning of the cellulose solution through a spinning nozzle, feeding the spun material through an air layer into a coagulating bath and coagulating the spun material and (D) a step for washing the multifilament with water and drying the washed multifilament, carrying out treatment of the multifilament with an oil solution and winding the treated multifilament. COPYRIGHT: (C)2006,JPO&NCIPI
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