苯甲醚介质活性染料皮克林乳液染色

Pickering emulsion dyeing of cotton fabrics with reactive dyes in anisole medium

针对活性染料传统水浴染色染料利用率低、耗水量大等问题,在前期研究的皮克林乳液染色方法的基础上,研究了皮克林乳液染色的适用性。通过EHS指标和毒理学数据评估皮克林乳液染色所用溶剂苯甲醚的安全性,通过染料提升力和染色废水测试比较皮克林乳液染色优势。结果表明,活性染料非均相体系染料提升力较好,可用于染深色,且废水颜色较水浴染色浅。用高效液相色谱(HPLC)法测定了Remazol Navy RGB染料水解/醇解过程中染料各组分含量变化结果表明,苯甲醚皮克林乳液介质中染料水解/醇解比低,其中双水解染料量为5.53%,远低于水浴染色中的18.10%。

To solve the problems of low dye utilization and high wastewater discharged in traditional aqueous dyeing, the applicability of Pickering emulsion dyeing is researched. EHS index and toxicologi- cal data are used to evaluate the safety of anisole, dye lifting and wastewater after dyeing are tested to show the advantage of Pickering emulsion dyeing. The results show that the heterogeneous system has better lifting and could be used to dye deep color, and the CODcr value and color of wastewater are lower than those of water. The quantities of Remazol Navy RGB in hydrolysis/methanolysis process are determined by high performance liquid chromatography （HPLC）. It is found that the hydrolysis/methanol- ysis ratio is low in anisole than that in traditional aqueous dyeing. The quantities of double hydrolyzed dyes are about 5.53% in anisole, which is much lower than that of 18.10% in water.