SEHR HYGROSKOPISCHE POLYAMIDFASERN UND HERSTELLUNG UND VERWENDUNG DERSELBEN

摘要

A highly hygroscopic polyamide fiber formed from a polyamide composition containing a polyvinylpyrrolidone (in an amount of 3-15 wt%), which may be synthesized in isopropyl alcohol as a solvent, in which any pyrrolidone which may be present is present in an amount less than 0.1 wt%, and which polyvinylpyrrolidone has a K-value of 20-70. This fiber is characterised by a yellowness index lower than 10 before dying, a large difference between the maximum moisture absorptivity and the standard moisture absorptivity, and a low content of water-soluble components that are subject to leaching.