| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an extremely strong fiber having heat resistance, abrasion resistance and chemical resistance inherent to a polyoxymethylene stably for a long time in high speed. SOLUTION: This method for producing a polyoxymethylene fiber is to melt extrude the polyoxymethylene in a condition satisfying a specific condition, draw the undrawn fiber in >=200 m/min speed, continuously draw the fiber in >=4 times and wind up the fiber in 1,200 m/min.
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