A Comparative Study of Hooks in the Ya Rns Produced by Different Spinning Technologies

Abstract

This article presents a comparative study of hooks’ characteristics of ring, rotor, air-jet and open-end friction spun yarns. Hook types and their extent, spinning in-coefficient and mean fibre extent in the yarns produced on different spinning technologies are investigated. The results show that the hook extents for open-end friction spun yarn are the highest followed by rotor, ring and air-jet spun yarns. Ring and air-jet spun yarns have higher percentage and extent of trailing hook as compared with leading hook, whereas, rotor and friction spun yarns show the reverse trend.

Keywords

• air-jet yarn
• friction spun yarn
• leading hook
• ring spun yarn
• rotor spun yarn
• spinning in-coefficient
• trailing hook