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Chemical auxiliaries free dyeing of cationized cotton with 1:2 metal complex dye

机译:1:2金属络合物染料对阳离子棉的化学助剂免费染色

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Application of 1:2 metal complex dyes on pre-cationized cotton has been studied. This unconventional process avoids the use of electrolyte required as exhausting agent in conventional dyeing of cotton fabric. Indeed, when we use a large amount of salt, the discharged wastewater from dye house creates unavoidable environmental threats. The dyeing has been carried out at the liquor ratio of 1:40 in a sealed stainless steel dyebath housed on the Ahiba Nuance speed varying temperature, contact time and sulphate concentration. Optimal conditions are determined using the experimental designs method. The results show the possibility of chemical auxiliaries free dyeing of cotton fabrics with 1:2 metal complex dye at 75 degrees C for 15 min by treating them with cationizer prior to dyeing. Adsorption kinetic and isotherm are also studied and the parallel exponential model is shown to fit experimental data with higher average regression coefficients.
机译:已经研究了1:2金属络合物染料在预阳离子棉上的应用。这种非常规的方法避免了在棉织物的常规染色中使用电解质作为排空剂。确实,当我们使用大量盐时,从染厂排出的废水会不可避免地对环境造成威胁。染色是在Ahiba Nuance变速温度,接触时间和硫酸盐浓度下,在密封的不锈钢染色浴中以1:40的液比进行的。使用实验设计方法确定最佳条件。结果表明,通过在染色前用阳离子化剂处理棉织物,可以在75摄氏度下用1:2金属络合物染料对棉织物进行化学助剂免于染色15分钟。还研究了吸附动力学和等温线,并显示平行指数模型适合具有较高平均回归系数的实验数据。

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