| 摘要 |
PROBLEM TO BE SOLVED: To provide a spinneret capable of stably performing dry-wet spinning, dry spinning and melt spinning with multiple holes. SOLUTION: The spinneret is a protrusion-type spinneret. The area of the tip end 6 of the protrusion is <=0.2 mm<2> , the height S of the protrusion is >=1.0 mm and the inner angleθformed between the side 3 (A) starting from the nozzle tip and the side 4 (B) adjacent to the side A satisfies the formula 100 deg.<θ<180 deg..
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