天津工业大学学报Issue(4)：35-39,5.
液体分散靛蓝与粉状靛蓝染色性能比较
Comparison of dyeing properties between liquid dispersing indigo and powder indigo
摘要
Abstract
Based on the same dosage of indigo, the indigo reduction processes were designed using the central composite experimental method for commercial powder indigo and liquid dispersing indigo respectively , and the reduction temperature, time, dosage of sodium hydrosulfite and caustic soda were used as response factors. The K/S value, friction color fastness and tensile strength of dyed fabrics were used to evaluate the reduction systems to obtain the optimal conditions for both powder and liquid dispersion indigo. Under the optimal conditions , Raman spectroscopy and dyebath COD values of the dyed fabric were compared. It is concluded that the optimal reduction condition for liquid dispersion indigo is reduction temperature of 40 ℃, the reduction time 46 min, dosage of sodium hydrosulfite of 126 g/L, dosage of caustic soda of 98 g/L;the optimal reduction condition for powder indigo is reduction temperature of 56℃, the reduction time 26 min, dosage of sodium hydrosulfite of 165 g/L, dosage of caustic soda of 108 g/L. The dyebath COD value of liquid indigo is 2 414 mg/L, that of powder indigo is 2 552 mg/L. The Raman spectra of two kinds of dyeings are basically the same , however the K/S value of liquid indigo dyed fabric is by 10%more than one of powder indigo.关键词
液体分散靛蓝/靛蓝染料/中心合成实验法/还原体系/拉曼光谱/COD值Key words
liquid dispersing indigo/indigo/central composite experimental method/reduction system/Raman spec-troscopy/COD value分类
轻工纺织引用本文复制引用
姚继明,郑明远,吴远明..液体分散靛蓝与粉状靛蓝染色性能比较[J].天津工业大学学报,2014,(4):35-39,5.基金项目
河北省纺织重点学科基金 （）
