| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinning pack which can stably spin a dope in a dope stay-preventing state and in a fiber breakage-reducing state to produce a fiber yarn having little fineness irregularity among the single filaments. SOLUTION: This spinning pack is characterized by disposing a filter for filtering the dope, a filter support grid disposed being in contact with the filter, and a spinneret for spinning the dope passed through the filter and the filter support grid in a dope passage from an introduction port to the spinneret for extruding the introduced dope, disposing a heat-insulating layer on the outer periphery of the dope passage, and covering the outer periphery with a heat-reserving material. COPYRIGHT: (C)2006,JPO&NCIPI
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