| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret pack designed to dispose a perforated plate with a specific number of penetrated holes, a nonwoven fabric filter, and a spinneret successively along the flow direction of a molted polymer so as to enable molten polymer flow to be regulated and uniformized while making the best use of the high filtration capacity of the nonwoven fabric filter. SOLUTION: This pack is so designed as to dispose a perforated plate 4 having penetrated holes 4a pref. with a hole diameter of 0.5-10 mm, length of 5-100 mm, and number of 50-1,000, a nonwoven fabric filter with a basis weight of 50-2,000 g/m<2> composed of metallic fiber pref. 5-50μm in diameter, and a spinneret, successively along the flow direction of a molten polymer; wherein the penetrated holes 4a are uniformly distributed throughout the inflow surface of the perforated plate 4.
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