Effects of bleaching and dyeing on the quality of alpaca tops and yarns |
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Authors: | Xin?Liu Christopher?J?Hurren Lijing?Wang Email author" target="_blank">Xungai?WangEmail author |
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Institution: | (1) School of Engineering and Technology, Deakin University, 3217 Geelong, Victoria, Australia |
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Abstract: | This paper reports the effects of bleaching of alpaca tops and dyeing of bleached alpaca tops/yarns on the quality of tops
and yarns. A dark brown alpaca top was bleached with hydrogen peroxide. Two bleaching methods were tried for effectiveness
of color removal. A portion of each bleached top was dyed after bleaching. Color parameters were examined for unbleached,
bleached and bleached/dyed tops, these tops were then converted into yarns of different twist levels and counts using a worsted
spinning system. Some of the bleached yarn from each bleaching method was dyed in a package dye vat to compare the difference
of top dyeing versus yarn package dyeing on yarn quality. Fiber diameter, yarn strength, yarn evenness, yarn hairiness and
fiber degradation were tested to examine the effects of bleaching and dyeing on these properties at top and yarn stages. A
processing route for bleaching and dyeing alpaca fiber was recommended. |
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Keywords: | Bleaching Dyeing Alpaca top and yarn Color Fiber degradation or damage |
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