二氧化硫脲对染色羊毛剥色工艺的研究  

Study on process of stripping to dyed wool with thiourea dioxide

作　　者：汪礼[1] 蓝骄艳 聂素双[1,2] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029 [2]北京市服装材料研究开发与评价重点实验室,北京100029

出　　处：《毛纺科技》2015年第1期26-31,共6页Wool Textile Journal

基　　金：服装材料研究开发与评价北京市重点实验室研究项目(项目编号:2012ZK-05);北京市教委研究项目(项目编号:KJCG02100202)

摘　　要：研究了二氧化硫脲在不同弱碱(纯碱、磷酸三钠、硅酸钠)条件下对羊毛常用染料染色毛条的剥色机理。通过测定剥色后毛条的K/S值、断裂强力、断裂伸长率,计算剥色率、强损率,分析了弱碱种类和用量、剥色温度及染料类型对剥色效果的影响,并得出了二氧化硫脲在不同弱碱条件下的优化剥色工艺。实验结果表明,二氧化硫脲和弱碱(纯碱、磷酸三钠、硅酸钠)复合的新还原体系用于染色羊毛的剥色,剥色效果较保险粉和漂毛粉好,剥色率高(对弱酸染料染色羊毛的剥色率达到了94%),同时对纤维损伤也较小(最大强损率仅16.8%)。Mechanism of that thiourea dioxide stripped wool tops dyed with commonly used dyes under different weak base（sodium carbonate, sodium silicate, trisodium phosphate）solution was studied. Through measuring K/S value, breaking strength, breaking elongation of the striped wool tops, calculating striping radio and breaking strength loss radio, the effect of kind and dosage of weak base, temperature of stripping and kind of dyes to stripping was analyzed. The optimize stripping process of thiourea dioxide under different weak base was concluded. The experiment results showed that dyed wool striped by new reduction system which composited by thiourea dioxide with weak base（ sodium carbonate, sodium silicate, trisodium phosphate）had a better result than which was done by sodium hydrosulfite and blankit,and its striping radio was high（94% for wool dyed with weak acid dye）, at the same time got little damage（the maximal breaking strength loss radio was just 16.8% ）.

关 键 词：二氧化硫脲 剥色 羊毛 羊毛常用染料 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]