| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a liquid crystal polyester fiber improved in higher-order process passability and product quality by decreasing faults caused by fusion in a solid phase polymerization process to improve uniformity in the fiber-length direction and then reducing fiber surface adherence of a fusion preventive agent. <P>SOLUTION: The production method of liquid crystal polyester fiber comprises adhering a fusion preventive agent on the surface of the liquid crystal polyester fiber, performing solid-phase polymerization, and removing the fusion preventive agent while travelling the solid phase-polymerized polyester fiber, so that the adhesion amount of the fusion preventive agent on the fiber is made 4.0 wt.% or less based on the fiber weight. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
