Effects of Geometry of Ring Spinning Triangle on Yarn Torque: Part II: Distribution of Fiber Tension within a Yarn and Its Effects on Yarn Residual Torque

被引:54
作者
Hua, Tao [1 ]
Tao, Xiao Ming [1 ]
Cheng, Kwok Po Stephen [1 ]
Xu, Bin Gang [1 ]
机构
[1] Hong Kong Polytech Univ, Inst Text & Clothing, Kowloon, Hong Kong, Peoples R China
关键词
spinning triangle; fiber tension distribution; shape of spinning triangle; yarn torque; SPUN YARNS; MIGRATION;
D O I
10.1177/0040517509102732
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
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.
引用
收藏
页码:116 / 123
页数:8
相关论文
共 15 条
[1]  
Balls WL, 1928, STUDIES QUALITY COTT, P168
[2]   STUDY OF YARN TORQUE AND ITS DEPENDENCE ON THE DISTRIBUTION OF FIBER TENSILE-STRESS IN THE YARN .1. THEORETICAL-ANALYSIS [J].
BENNETT, JM ;
POSTLE, R .
JOURNAL OF THE TEXTILE INSTITUTE, 1979, 70 (04) :121-132
[3]   MIGRATION OF FIBERS IN YARNS .8. EXPERIMENTAL STUDY ON A 3-LAYER STRUCTURE OF 19 FILAMENTS [J].
HEARLE, JWS ;
GOSWAMI, BS .
TEXTILE RESEARCH JOURNAL, 1970, 40 (07) :598-&
[4]   MIGRATION OF FIBERS IN YARNS .5. COMBINATION OF MECHANISMS OF MIGRATION [J].
HEARLE, JWS ;
GUPTA, BS ;
GOSWAMI, GC .
TEXTILE RESEARCH JOURNAL, 1965, 35 (11) :972-&
[5]  
HEARLE JWS, 1969, STRUCTURE MECH FIBER, V1
[6]  
Hickie T.S., 1960, J TEXTILE I T, V51, pT1120, DOI [https://doi.org/10.1080/19447026008662547, DOI 10.1080/19447026008662547]
[7]   Effects of geometry of ring spinning triangle on yarn torque part I: Analysis of fiber tension distribution [J].
Hua, Tao ;
Tao, Xiao Ming ;
Cheng, Kwok Po Stephen ;
Xu, Bin Gang .
TEXTILE RESEARCH JOURNAL, 2007, 77 (11) :853-863
[8]   STRUCTURE OF OPEN-END SPUN YARN [J].
LORD, PR .
TEXTILE RESEARCH JOURNAL, 1971, 41 (09) :778-&
[9]  
Postle R, 1964, J TEXT I, V55, P448
[10]  
Schonung B., 1989, LECT OCC 4 RING SPIN