| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for wet spinning a synthetic fiber consisting of an organic polymer, dissolving coagulation unevenness among the group of single fibers spun from a group of ejection holes bored on a spinneret to suppress single yarn cutting by making the solvent concentration as uniform in a coagulation liquid filled in a coagulation bath. SOLUTION: This method for forming the group of single fibers (F) is provided by immersing the spinneret (2) in the coagulation bath (1) filled with the coagulation liquid, spinning the spinning solution obtained by dissolving the organic polymer with a solvent from the group of ejection holes bored on the spinneret (2) into the coagulation liquid from lower direction to an upper direction, extracting the contained solvent of the spun spinning solution to form the group of single fibers (F) is characterized by forming a coagulation liquid flow having a velocity component in crossing the group of the single fibers (F) in a zone of forming the group of the single fibers (F) by extracting the contained solvent. COPYRIGHT: (C)2004,JPO&NCIPI
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