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Improved reactive dye fixation on ramie fiber in liquid ammonia and optimization of fixation parameters using the Taguchi approach

机译：利用TAGUCHI方法改善苎麻纤维对苎麻纤维的活性染料固定，并使用TAGUCHI方法优化

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摘要

Dyeing in liquid ammonia has the advantage of penetrating the reactive dye molecules inside the fiber structure by modifying the cellulose supramolecular from a crystalline to amorphous form. However, the dye fixation rate of the baking treatment is unsatisfactory (29.45%). In this study, ramie yarn hanks were dyed in liquid ammonia, and cationic fixation auxiliary silicone micro-emulsion was used to fix the dye molecules in the fibers to improve the dye fixation rate and fastness properties. The fixation parameters were optimized using the Taguchi approach. The optimum conditions of the cationic fixation auxiliary mass, fixation time, and water content with four levels on the fixation rate were investigated using an L-16 orthogonal array. The larger-the-better signal-tonoise ratio was applied to maximize the responses of the parameters. The main effect and interaction plot of several factors were analyzed, with results suggesting that the mass of the cationic fixation auxiliary is the most influential parameter for the fixation of the reactive dye (P < 0.05). A fixation rate for the reactive dye of 52.82% +/- 0.5% was observed under the optimal conditions. The color uniformity, wash fastness and rubbing fastness of the dyed sample treated by the cationic fixation auxiliary silicone micro-emulsion were exceptional.
机译：液氨中的染色具有通过将纤维素超分子从结晶与无定形形式改变纤维素的纤维素结构在纤维结构内穿透反应性染料分子的优点。然而，烘焙处理的染料固定率不令人满意（29.45％）。在本研究中，苎麻纱线染色在液氨中染色，并且使用阳离子固定助剂硅氧烷微乳液来固定纤维中的染料分子以改善染料固定率和牢度性能。使用Taguchi方法优化固定参数。使用L-16正交阵列研究了阳离子固定辅助质量，固定时间和含有四个水平的含水量的最佳条件。施加较大的信号温度比以最大化参数的响应。分析了几个因素的主要效果和相互作用图，结果表明阳离子固定助剂的质量是用于固定反应性染料的最有影响力的参数（P <0.05）。在最佳条件下观察到反应性染料的固定率为52.82％+/- 0.5％。由阳离子固定辅助硅氧烷微乳液处理的染色样品的颜色均匀性，洗涤牢度和摩擦牢度特殊。

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