Comparative analysis of traditional jet vortex spinning and self-twist jet vortex spinning on yarn mechanism and yarn properties

Abstract

Because of the friction between the hollow spindle surface and the fiber end increasing, the fiber end rolls on the hollow spindle surface under the high-speed rotating airflow during the twisting process. The fiber gets self-twist, which will be wound into the yarn body. The self-twist of the fiber will increase the friction and the cohesion between the fibers in the yarn, which will improve the strength of the yarn. This article analyzes traditional jet vortex spinning and self-twist jet vortex spinning comparatively from the three aspects of the hollow spindle structure, the airflow distribution inside the nozzle, and the yarn performance. It is beneficial for exploring the yarn mechanism, the yarn performance, and the development of self-twist jet vortex spinning.