加氢预还原液体靛蓝和粉状靛蓝染色性能对比  

Comparison of dyeing properties of hydropre-reduced liquid indigo and powdered indigo

作　　者：任松鹤 黄艳东 秦松涛 REN Songhe;HUANG Yandong;QIN Songtao(Shijiazhuang Pengchi Technology Co.Ltd.,Shijiazhuang 050000,China;Hebei New Dadong Textile Co.Ltd.,Shijiazhuang 050000,China)

机构地区：[1]石家庄鹏驰科技有限公司,河北石家庄050000 [2]河北新大东纺织有限公司,河北石家庄050000

出　　处：《印染助剂》2024年第10期47-50,共4页Textile Auxiliaries

摘　　要：粉状靛蓝染色时,需要使用大量保险粉和烧碱进行还原,对环境及布面色光产生不利影响。采用氢气还原靛蓝制备成预还原液体靛蓝,在染色时添加少量保险粉和烧碱即可正常染色。采用预还原液体靛蓝和粉状靛蓝,保持染液中靛蓝浓度相同,在还原电位-700~-800 mV时进行染色,分析染色布样的色度特征及色牢度。结果表明,预还原液体靛蓝染色,染色深度和色牢度均可以达到粉状靛蓝染色效果,红色色光较粉状靛蓝弱,更加符合市场流行趋势。In the process of powdered indigo dyeing,it is necessary to use a lot of insurance powder and caustic soda for reduction,which has an adverse effect on the environment and the color of the cloth.The pre-reduced liquid indigo was prepared by the reduction of indigo with hydrogen.The normal dyeing could be done by adding a small amount of insurance powder and caustic soda.The pre-reduced liquid indigo and pow⁃dered indigo were used to keep the same indigo concentration in the dye solution,and dyeing was carried out at the reduction potential from-700 mV to-800 mV to analyze the chromaticity characteristics and color fast⁃ness of the dyed cloth.The results showed that the dyeing depth and color fastness of pre-reduced liquid in⁃digo could achieve the dyeing effect of powder indigo.The red color light was weaker than powdery indigo,which was more in line with the market trend.

关 键 词：预还原靛蓝 粉状靛蓝 颜色特征值 色牢度 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]