| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret for melt-spinning a sea-island type conjugate fiber, which can stably obatain ultrafine fibers without enlarging the diameter of the spinneret or extremely thickening the spinneret, without supplying an island component polymer, while continuously, accurately and strictly measuring the supply flow of the island component polymer, and without largely increasing the number of the islands. SOLUTION: In the spinneret for melt-spinning the sea-island type conjugate fiber, pipe-like members 4 provided in a sea component polymer-distributing chamber 10 and used for forming an island component polymer includes at least two kinds of pipe-like member groups having different inner diameters. COPYRIGHT: (C)2009,JPO&INPIT
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