染料应用中的扬长避短问题

Maximize Favourable Factors and Minimize Unfavourable Ones in the Application of Dyes

各种染料都有其优缺点 ,对其优点人们利用得很好 ,而对其缺点则欠思考。文中对几种染料的“短处”进行了深入的思考 ,并加以巧妙地利用 ,达到了扬长避短的目的。如直接染料用于活性染料染色的纠色回染 ,安全可靠、工艺方便 ;分散染料对真丝绸、锦纶绸等经弱酸、中性染料染色作纠色回修 ,可不用去除纤维上的阳离子物质 ;几种碱性染料在真丝与醋纤、粘胶丝等的交织物上的恰当使用 ,可产生多种风格 ;涂料用于牛仔服的染色 ,后处理工艺大大减化 ;利用S型分散染料遮盖性及匀染性差的特点 ,可用于检验毛坯质量等等 ,以上方法都是较成功的经验 ,值得大家借鉴。

Each dyestuff shows both advantages and disadvantages. While making use of the former, we should not neglected the latter. Special attentions are paid to the disadvantages of several dyestuffs and experience in using these weakness is presented as follows: Direct dyes can be simply and reliably used in the re dyeing followed after reactive dyeing; It is no need to remove cationic matter when disperse dyes is used in the re dyeing of silk and polyamide fabric which have been dyed with weakly acidic or neutral dyestuffs,; Different styles can be achieved by properly using a variety of basic dyes in silk/acetate or silk/viscose mix knitted fabric; Dyeing cowboy wear with pigment dyes can simplify the post treatment; Making use of the disadvantages of poor coverage and levelness of disperse dyes is feasible in checking the quality of greige fabric.