| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for producing a wholly aromatic polyamide fiber, in which a high quality, wholly aromatic polyamide fiber, the fiber yarn of which is drawn and aligned very well without being fibrillated, can be obtained.SOLUTION: In production of a wholly aromatic polyamide fiber, when inorganic fine powder for preventing fusion is removed after the fiber yarn is drawn thermally or heat-treated, a fluid is sprayed on the fiber yarn from at least three directions with a ratio of ((the minimum flow rate)/(the maximum flow rate) of the fluid from each of the three directions being set within a specified range.</p> |
