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Textile Research Journal
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The Hairiness of Worsted Wool and Cashmere Yarns and the Impact of Fiber Curvature on Hairiness

Xungai Wang

Centre for Material and Fibre Innovation, Deakin University, Geelong, Victoria 3217, Australia, xwang{at}deakin.edu.au

Lingli Chang

Centre for Material and Fibre Innovation, Deakin University, Geelong, Victoria 3217, Australia

Bruce McGregor

Department of Primary Industries, Attwood Victoria 3049, Australia

In this study, a range of carefully selected wool and cashmere yarns as well as their blends were used to examine the effects of fiber curvature and blend ratio on yarn hairiness. The results indicate that yarns spun from wool fibers with a higher curvature have lower yarn hairiness than yarns spun from similar wool of a lower curvature. For blend yarns made from wool and cashmere of similar diameter, yarn hairiness increases with the increase in the cashmere content in the yarn. This is probably due to the presence of increased proportion of the shorter cashmere fibers in the surface regions of the yarn, leading to increased yarn hairiness. A modified hairiness composition model is used to explain these results and the likely origin of leading and trailing hairs. This model highlights the importance of yarn surface composition on yarn hairiness.

Key Words: yarn hairiness • fiber curvature • wool • cashmere • worsted yarns

Textile Research Journal, Vol. 76, No. 4, 281-287 (2006)
DOI: 10.1177/0040517506061964
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