| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret which generates hardly dispersion in the thickness of a coating layer with respect to a spinneret for manufacturing a multilayer skein. SOLUTION: The spinneret has the flow passage 3 of a core component resin, and the flow passage 4 of a coating layer component resin for discharging the coating layer component resin around the core component resin from the periphery of the flow passage 3 of the core component resin. The flow passage 4 of the coating layer component resin consists of an inlet 4a for introducing the coating layer component resin, and a distribution part 4b placed around the flow passage 3 of the core component resin for distributing the coating layer component resin introduced from the inlet 4a around the flow passage 3 of the core component resin, and a feeding part 4c for guiding the coating layer component resin to the flow passage 3 of the core component resin. When the feeding part 4c and the distribution part 4b introduce the coating layer component resin from the inlet 4a to the distribution part 4b, a pressure drop generated in the flow passage of the feeding part 4c becomes larger than a pressure drop generated in the distribution part 4b. |
