紫绒漂白工艺优化  

Optimization on brown cashmere bleaching process

作　　者：蔡建芳[1] 栗志广[1] 章清萍[1] 任燕[1] 徐成书[1] 

机构地区：[1]西安工程大学纺织与材料学院,陕西西安710048

出　　处：《纺织高校基础科学学报》2010年第3期364-367,共4页Basic Sciences Journal of Textile Universities

摘　　要：对紫绒采用预处理—清洗—氧化漂白—还原漂白—脱铁的工艺流程处理,研究了紫绒漂白工艺.通过测试漂白后纤维的白度、碱溶解度评价漂白效果,并对紫绒漂白工艺进行优化.得出最佳漂白工艺为:预处理阶段硫酸亚铁用量3g.L-1,温度60℃,时间45min;氧化漂白阶段过氧化氢用量35g.L-1,焦磷酸钠用量6g.L-1,温度60℃,时间2h;还原漂白阶段漂毛粉用量17g.L-1,温度60℃,时间1h.Five procedures,e.g.pretreatment,scouring,oxidative bleaching,reductive bleaching and deferrization,were carried out to study the process of bleaching brown cashmere fibers.On the basis of the whiteness index and alkali solubility determination of the decolored fibers,the bleaching process was optimized.The optimum process is as follows,in pretreatment process,ferrous sulfate is 3g·L^-1and 60℃,45min;In oxidation decoloring process,the concentration of hydrogen peroxide is 35g·L^-1,the temperature is 60℃,and time is 2h;In reductive decorloring process,the concentration of rinse powder is 17g·L^-1,the decoloring temperature and time are 60℃,1h.

关 键 词：紫绒 漂白 白度 

分 类 号：TS102.312[轻工技术与工程—纺织工程]