【摘要】 为解决染料难以对聚丙烯纤维上染的问题,筛选具有超高疏水性、结构平面良好的高疏水染料对聚丙烯纤维进行染色,并探讨其染色性能。实验讨论了染色温度、时间、分散剂用量及pH值等因素对得色深度的影响,测定了高疏水染料对聚丙烯纤维的染色热力学参数。研究结果表明高疏水染料对聚丙烯纤维具有良好的染色性能,其优化工艺为染色温度120℃,分散剂用量0.1%～0.3%,染色时间60 min,pH值4～5;偶氮结构甲基黄和苏丹红B染料对纤维具有较高的亲和力和分配系数;降低染料分子摩尔体积,有助于提高高疏水性染料对聚丙烯纤维的亲和力,增加其分配系数。更多还原

【Abstract】 In order to solve the dyeing problem of polypropylene fibers, high-hydrophobic dyes with ultra-high hydrophobicity and good structural planarity are selected to dye polypropylene fibers, and their dyeing properties are discussed. The experiment discussed the effects of dyeing temperature, time,the dosage of dispersant and pH value on the color depth, and measured the dyeing thermodynamic parameters of high hydrophobic dyes on polypropylene fibers. Results indicated that high hydrophobic dyes have good dyeing performance for polypropylene fibers. The optimized dyeing condition is as follows: the dyeing temperature is 120 ℃ for 60 minutes, the concentration of dispersant is 0.1%～0.3 %,and the pH value is 4～5. Methyl yellow dye and Sudan B dye with azo structure have high affinity and distribution coefficient to fibers. And reduce the molar volume of dye molecules can improve the affinity and distribution coefficient of the high hydrophobic dyes to the polypropylene fibers.更多还原