| 摘要 |
<p>[Designation of Document] AbstractThere is provided a novel meta-type wholly aromatic polymide fiber which has a high breaking strength and caninhibit or discoloration under high temperatures, while retaining latent properties of the meta - type whollyaromatic polymide fiber, such as heat resistance and flame retardancy.Components or conditions of a coagulations bath areappropriately controlled so as to give a dense coagulation statehaving no skin-core structure, plastic stretching is performed within a specific ratio, and fur , subsequent heat stretching conditions or s arenade proper, thereby obtaining, a meta-type wholly aromatic polyamide fiber containing substantially no layered clay mineral, in. which the amount of solvent remaining in I: he fiber is 1.0% by mass or less based on the whole fiber, and the breaking str enoth of the fiber is from 4.5 to 6.0 cN/dtex.</p> |
