改善酸性染料溶解度途径初探

An Approach to Improving the solubility of Acid Dyes

本文通过对酸性染料的盐析、结晶、拼混、研磨等商品化加工条件对溶解度关系研究，发现染料经不同ｐＨ、不同试剂和机械的作用将改变染料的晶粒生长、相转变、颗粒大小及其分布，同时对染料溶解度会产生一定的影响。选择合适的盐析结晶ｐＨ介质、助溶剂、分散剂和研磨等综合的商品化加工过程，是提高酸性染料溶解度的有效途径。

In this paper the relation between the solubility of acid dyes and the condition in the process of their commercial production,such as salt separation, crystallization,mixing and milling etc.have been studied.It have been found that the physical form changes of acid dyes such as crystal growth,phase change,particles size and their distribution etc.would effect on their solubility,and the physical form changes were produced by the action of PH, solvent and mechanical.It is an effective approach to improving the solubility of acid dyes by means of the comprehensive commercialization process.These process are consist of the suitable selection of the acid or alkaline mediun of salt separation,assistant solvent, and dispersant.