.... This study describes the phenomenon of migration with different levels of twist and tension. The filament trajectory has been visualised for yarn made of a 3 layered structure (external, internal and central) of 19 filaments to show the existence of the migration phenomenon. Furthermore, a study of the mean...

.... The migration of the filaments has been shown in a previous paper. In this study, we will describe a quantitative analysis of filament migration for different levels of twisting tension and torsion. The distribution of the filament orientation angle in accordance to the radial position and the axial position...

...Zhengxue Tang; Xungai Wang; W. Barrie Fraser High energy consumption remains a key challenge for the widely used ring spinning system. Tackling this challenge requires a full understanding of the various factors that contribute to yarn tension and energy consumption during ring spinning...

... significantly reduces needle thread consumption per stitch and increases the peak dynamic needle thread tension. This change in lockstitch formation has a profound effect on the geometry of the stitch and the theoretical performance of the stitch under longitudinal load. The ability to reduce static thread...