筒子染色中清除铁离子的实践

筒子纱染整加工过程中,由于染液中铁离子的存在,双氧水漂白时单纱中部分纤维会发生“烧伤”,造成纱线强力下降.将锈蚀的镀锌管路更换为不锈钢材质,清除了铁离子在染纱供水中的二次污染；在高支纱染色时,采用氧漂煮练酶和铁离子螯合分散剂进行前处理,减少了双氧水用量,降低了铁离子浓度,消除了纤维的“烧伤”现象.

Elimination of iron ions in package dyeing

In hydrogen peroxide bleaching process of package wet processing,part of fiber may be caustic-damaged due to the presence of iron ions.The solutions include replacement of rubiginous galvanized piping with stainless steel,removing iron ions in the dyeing water,pretreatment of high-count yarn with oxygen bleaching and scouring enzyme as well as iron chelating dispersant agents.By above,the amount of hydrogen peroxide required is reduced,iron content is decreased,and damage of fiber is eliminated.