Yarn and fabric properties in a modified ring spinning system considering the effect of the friction surface of the false-twister

• Published in: Textile research journal Vol. 90; no. 5-6; pp. 572 - 580
• Main Authors: Yin, Rong, Tao, Xiao-Ming, Xu, Bin-gang
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.03.2020; Sage Publications Ltd
• Subjects: Cotton; Defects; Friction; hardness; knitted fabrics; Ring spinning; spinning; Surface roughness; textile fibers; Twisting; Yarn; Yarns; false-twister; ring spinning; yarn neps; friction-belt; yarn properties
• DOI: 10.1177/0040517519873057
• ISSN: 0040-5175; 1746-7748

This paper experimentally studies the relationship between the friction surface of a false-twisting unit and the quality of cotton yarns produced by a modified ring spinning system, with the adoption of the single friction-belt false-twister. The friction surface of the false-twisting unit, as a key twisting component, has been studied in terms of material, surface roughness, hardness and diameter, as well as the interaction between these factors and resultant yarn properties, with particular attention to yarn imperfections. Experimental results showed that the false-twisting unit with a short interactive path demonstrated significant reduction of yarn imperfections, especially yarn neps. With the optimal false-twisting unit, performances of the modified yarns and their knitted fabrics were evaluated and compared with the conventional ones.