Twist distribution in staple fibre yarns

Lamb, P. R., Wang, L. and Wang, X. 2010, Twist distribution in staple fibre yarns, Journal of the Textile Institute, vol. 101, no. 4, pp. 293-303.

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Title Twist distribution in staple fibre yarns
Author(s) Lamb, P. R.
Wang, L.
Wang, X.
Journal name Journal of the Textile Institute
Volume number 101
Issue number 4
Start page 293
End page 303
Total pages 11
Publisher Taylor & Francis
Place of publication Manchester, England
Publication date 2010-04
ISSN 0040-5000
1754-2340
Keyword(s) twist distribution
tenacity
torque
worsted yarn
linear density
fibre science
Summary Staple fibre yarns vary quite markedly in linear density (tex) along their length and the degree to which twist redistributes from thick to thin places will affect the strength, torque and extension behaviour of the yarn. Theory suggests that twist along worsted yarns should vary as 1/(tex)2 if fibres were locked in the structure, whereas themean torque of worsted yarns reported in the literature implies that twist should be proportional to 1/tex. This article examines twist distribution in ring-spun marl yarns, down to 5 mm resolution, as a function of linear density measured using a high-resolution capacitive sensor. It is found for moderate twist-level worsted yarns that twist is approximately proportional to 1/(tex)1.6. The results and theory provide a guide as to the effect the observed large variations in linear density will have on yarn properties such as tenacity and torque.
Language eng
Field of Research 091012 Textile Technology
Socio Economic Objective 860403 Natural Fibres, Yarns and Fabrics
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2009, The Textile Institute
Persistent URL http://hdl.handle.net/10536/DRO/DU:30028322

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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