摘要
碱性染色助剂是适应分散染料碱性染色法而开发的一种专用助剂。它具有稳定染料、螯合金属离子和使染液pH值在某一范围内变化等作用,同时能改进精练效果,以及促进齐聚物溶解。市售的商品,按其在染色过程中pH值的变化,可分成两类;一类是pH值不变型,一类是pH值滑动型。所谓pH值不变型是指在染色前后的pH值变化幅度甚小;而pH值滑动型则是指染色前是碱性浴,至染色结束其染液pH值已基本接近中性。这两类碱性染色助剂在染色过程中的实例,如图6所示。
The traditional way to dye polyester with disperse dyes is in an acid hath. In this paper, the author introduced the dyeing process in a basic bath. With the development of alkali-stable disperse dyes and relative auxiliaries, especially the exploitation of Shin-Gosen ,the advantage of this process is recognized by the dyers increasingly . The advantage of this process is high efficiency,low cost and energy and time saving. The mechanism of this process, along with the related factors and dyeing technology,is interpreted.
出处
《印染》
北大核心
1996年第5期34-37,共4页
China Dyeing and Finishing
关键词
分散染料
染色
碱性染色体系
Basic dyeing Disperse dye Polyester fibre