双蛋白纤维H_2O_2/TAED低温漂白工艺探讨  

Low temperature bleaching of double protein fiber with hydrogen peroxide/tetraacetylethylenediamine

作　　者：曹机良[1] 王宏[1] 边亚敏[1] 郭雪健[1] 

机构地区：[1]河南工程学院材料与化学工程学院,河南郑州450007

出　　处：《印染助剂》2014年第3期39-42,共4页Textile Auxiliaries

基　　金：河南省科技厅2012年科技攻关项目(122102210145);河南省教育厅2012年自然科学研究项目(12A540002)

摘　　要：采用四乙酰乙二胺(TAED)作为大豆蛋白/牛奶酪素蛋白/聚乙烯醇共混纤维(简称双蛋白纤维)H2O2漂白的活化剂,在n(H2O2)∶n(TAED)=2∶1的条件下,探讨了H2O2、硅酸钠和纯碱用量、漂白温度、漂白时间对纤维白度、黄度的影响,并通过染色试验测定了漂白纤维对酸性深蓝5R的上染百分率.研究表明,常规H2O2漂白工艺不适合双蛋白纤维;采用H2O2/TAED体系,在30%H2O212 g/L,硅酸钠5 g/L,漂白温度70℃,漂白时间60 min时,对双蛋白纤维进行漂白,白度较高,且对上染百分率影响小.Tetraacetylethylenedianime （TAED） was used as an activator for the hydrogen peroxide （H2O2） bleaching of soybean/casein/polyvinyl alcohol blend fibers （double protein fibers）. The influences of dosage of H2O2, sodium silicate and sodium carbonate, temperature and time on the whiteness and yellowness of bleached fibers were investigated under the condition of n（H2O2）： n（TAED）=2： 1. The dye uptake of Acid Blue 5R on bleached fibers was also measured through dyeing experiment. It was found that the conventional hydrogen peroxide bleaching method was not fit for bleaching of double protein fibers. The hydrogen peroxide/ TAED bleaching with 12 g/L of 30% H2O2, 5 g/L of sodium silicate, under 70℃ for 60 rain was fit for bleaching of double protein fibers, and the whiteness of bleached fibers was high and the dye uptake of bleached fibers was good.

关 键 词：漂白 H2O2 四乙酰乙二胺 双蛋白纤维 

分 类 号：TQ226.38[化学工程—有机化工] TQ341.5