还原灰BG的电化学还原染色  

Electrochemical reduction dyeing of Vat Grey BG

作　　者：赵放 ZHAO Fang(Xi′an Polytechnic University,Department of Science&Technology,Xi′an 710048,China)

机构地区：[1]西安工程大学科技处,陕西西安710048

出　　处：《印染》2021年第10期11-15,45,共6页China Dyeing and Finishing

基　　金：陕西省重点研发计划工业领域一般项目(2020GY-276)。

摘　　要：通过外加直流电压,以Fe(Ⅲ)-TEA(三乙醇胺)络合物为电子载体,构建了间接电化学还原染色体系,并采用还原灰BG对纯棉机织物进行染色。优化的工艺条件为:TEA 30 g/L、Fe_(2)(SO_(4))_(3)·6H_(2)O 6 g/L、NaOH 15 g/L,络合物制备温度T_(a)为50℃、制备时间t_(a)为60 min,还原染色温度T_(b)为35℃、还原染色时间t_(b)为100 min,阴极面积S为25 cm^(2),外加电压U为6 V。采用该工艺染色的棉织物耐皂洗、耐摩擦色牢度,以及匀染性均较佳。An indirect electrochemical reduction dyeing system is constructed with Fe(Ⅲ)-TEA(triethanolamine)complex as the electron carrier by applying a direct current voltage.Cotton woven fabric is dyed with Vat Grey BG.The optimized process is:TEA 30 g/L,Fe_(2)(SO_(4))_(3)·6H_(2)O 6 g/L,NaOH 15 g/L,preparation temperature of complex T_(a) is 50℃,preparation time t_(a) is 60 min,reduction dyeing temperature T_(b) is 35℃,the reduction dyeing time t_(b) is 100 min,the cathode area S is 25 cm^(2),and the applied voltage U is 6 V.The cotton fabric dyed by this process has higher color fastnesses to soaping and rubbing,and better level dyeing properties.

关 键 词：染色 还原染料 电化学还原 棉织物 

分 类 号：TS193.633[轻工技术与工程—纺织化学与染整工程]