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An investigation of methodology and apparatus to assess twist liveliness of spun yarns

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Abstract

A methodology and apparatus have been proposed to indirectly evaluate twist liveliness of spun yarns by measuring the number of snarl turns formed of a yarn submerged in a water bath. A comparative study was carried out to evaluate the effectiveness of water in the measurement of yarn snarls. T tests showed that water has a significant effect in the snarl forming and testing results. Systematic studies were then carried out in the intra and inter laboratories to evaluate the feasibility and accuracy of the proposed measurement system. The analysis of variance (ANOVA) for the studies showed that there is no significant difference in measuring twist liveliness between the operators in the same laboratory and between the operators from different laboratories, respectively. The largest variance in the tests is attributed to the expected variation in the level of snarl turns in different yarn specimens. The experimental results showed that the developed yarn snarling apparatus has made accurate and repeatable measurements of twist liveliness over a range of 100 % cotton ring spun yarn counts.

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Authors and Affiliations

  1. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

    Charlotte Marion Murrells, Bingang Xu & Xiaoming Tao

Authors
  1. Charlotte Marion Murrells
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  2. Bingang Xu
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  3. Xiaoming Tao
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Corresponding author

Correspondence to Bingang Xu.

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Murrells, C.M., Xu, B. & Tao, X. An investigation of methodology and apparatus to assess twist liveliness of spun yarns. Fibers Polym 12, 679–685 (2011). https://doi.org/10.1007/s12221-011-0679-y

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  • DOI: https://doi.org/10.1007/s12221-011-0679-y

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