Water and dye-free coloration of wool |
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| Authors: | Guangming Cai Zhenglin Xu Bin Tang Xungai Wang |
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| Institution: | 1.School of Textile Science and Engineering,Wuhan Textile University,Wuhan,China;2.Institute for Frontier Materials,Deakin University,Geelong,Australia |
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| Abstract: | A water and dye-free heat treatment method was used to color wool fibers. The heat effect changed wool fibers to different colors from white in a nitrogen atmosphere. The influences of heating temperature and time on the colors of wool were investigated and the mechanical property of colored wool fibers was evaluated. The color strength of wool fibers increased as heat treatment temperature and time increased. The tensile strength retention rate of wool fiber was relatively high (≥90 %) when the heat temperature was below 200 °C. The surface morphologies of wool fibers scarcely changed during the heat treatment. The carbon content of fibers was found to reduce by heat treatment, indicating oxidization of components in the wool fibers in the process of coloration. Heat treatment may provide a water and dye-free approach to color wool and other textile fibers, albeit within a limited color range. |
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