Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25609
Title: Effects of geometry of ring spinning triangle on yarn torque : Part II : Pistribution of fiber tension within a yarn and its effects on yarn residual torque
Authors: Hua, T 
Tao, XM 
Cheng, KPS
Xu, BG 
Keywords: Fiber tension distribution
Shape of spinning triangle
Spinning triangle
Yarn torque
Issue Date: 2010
Publisher: SAGE Publications
Source: Textile research journal, 2010, v. 80, no. 2, p. 116-123 How to cite?
Journal: Textile research journal 
Abstract: This paper presents a theoretical analysis of fiber tension distribution within a ring spun yarn without relaxation. Yarn residual torque is determined on the basis of the translation of fiber tension at the spinning triangle, as presented in the first part of this series of papers, into the fiber tension within the yarn. The results from numerical simulations indicate that, with fiber buckling, the yarn exhibits a lower average fiber tension and, thus, a much reduced yarn residual torque than that without fiber buckling. Comparison with experiments confirmed that fiber buckling exists in ring yarns while the assumption of no fiber buckling is not realistic. Generally, a low yarn twist results in low average fiber tension in the yarn and, thus, a reduced yarn residual torque. A symmetrical spinning triangle leads to a slightly higher yarn residual torque than a right-angle spinning triangle when the yarn counts and twists are identical and fiber buckling occurs.
URI: http://hdl.handle.net/10397/25609
ISSN: 0040-5175
EISSN: 1746-7748
DOI: 10.1177/0040517509102732
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