| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret apparatus and a nozzle plate with which the number of islands is increased without combining island component resins mutually and a sea-island type fiber for generating an extra fine fiber having a thinner fiber diameter is spun and a method for producing a sea-island fiber. SOLUTION: The spinneret apparatus 10 is equipped with an island component resin supply source and a sea component resin supply source (not shown in the figure) for supplying an island component resin A and a sea component resin B to the spinneret 10, respectively and the island component resin A and the sea component resin B from the resin supply sources are supplied from a resin introduction part 11 to a resin distribution plate 12. An upper distribution plate 13 for distributing the island component resin A and a lower distribution plate 14 for receiving the island component resin A from the upper distribution plate 13 are installed on the downstream side of the resin distribution plate 12. A spacer 15 is arranged between the upper distribution plate 13 and the lower distribution plate 14. A nozzle plate 16 for collecting a great number of sea-island type fibers formed by the upper distribution plate 13 and the lower distribution plate 14 is arranged at the resin discharge face side of the lower distribution plate 14. COPYRIGHT: (C)2005,JPO&NCIPI
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