Journal
CHINESE JOURNAL OF CHEMICAL ENGINEERING
Volume 18, Issue 6, Pages 1023-1028Publisher
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/S1004-9541(09)60163-4
Keywords
tertiary amine cationic polyacrylamide; reactive dye; cotton fabric; salt-free dyeing
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Tertiary amine cationic polyacrylamide with high canonization degree was used as a new cationic agent to pretreat cotton with dip-pad-bake method. The obtained cationic cotton was dyed with reactive dyes in the absence of electrolyte. The effects of the characteristics of the cationic agent and the pretreatment conditions on dye-ability of reactive dye were investigated. The results showed that the fixation and K/S values of the reactive dyes on the cationic cotton were improved compared with those on the untreated one in the presence of salt. Tests on fastness properties of the dyed cotton and fabric quality of the pretreated cotton were carried out and the results showed that wash and rub fastness of the salt-free dyeing were both satisfactory. And anti-crease property, tensile and tear strength, and handling of the cationic cotton were also good compared with that of the untreated one.
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