| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret pack for melt-spinning, capable of subdividing a heat-deteriorated gelatinized polymer which can not be subdivided by a foreign matter-dispersing filter layer to reduce the rate of yarn break at spinning and to improve after-processability. SOLUTION: The spinneret pack for the melt spinning obtained by laminating at least a cap, a pressure-proof disk, a metal wire filter and a filter medium in the interior of a pack case has a sintered filter of a metal staple having a cross section with a nearly polygonal shape, installed between the metal wire filter and the filter medium. COPYRIGHT: (C)2005,JPO&NCIPI
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