Abstract:
A stretched polyamide-6-filament consisting of a polyamide-6, having a monoclinic structure, a Cu-K -X-ray reflection width measured in the half height of the equator reflection - of at least 2.35* corresponding to an angular distance of the (200) and (020) reflex of 0.8* and an infra-red extinction ratio E833/E1075 of 13. The polyamide-6-filament is prepared by a continuous spinning and stretching process which comprises the following steps : (a) dressing the filaments spun from the polyamide-6 melt immediately after they have been cooled with a non-ionic, high temperature resistant dressing agent, (b) drawing off under transposition, (c) stretching the filaments over stretching rollers, and (d) winding up the stretched filaments under tension.