SELF-TWIST SPINNING FOR SHORT STAPLES BY AIR-JET TWISTER

Abstract

In this study, self-twist spinning system for short staple fiber bundle is investigated. In this system, an air jet twister is used, in which high pressure air is ejected tangentially to the yarn path from small holes. Two fiber bundles are individually twisted by intermittently supplied air. This suggests that the transient twist is utilized as a real twist. The spun yarn obtained by this method is twisted alternately in S and Z twist, and its length is different each other. The yarn having twistless part is obtained in the region of changing S to Z twist. Although the spinning speed was 50m/min and the appearance of the yarn was not favorable, high speed productivity might be expected to by this spinning system.