Improving the dyeability of natural colorants on cotton by cationization

摘要

Cotton fibric was cationized with several cationizing reagents before dyeing with natural colorants(Redwood, Growwell, Cochineal, Goldthread and Amur cork tree)for improving its dyeability. The K/S value of cationized cotton Fabric dyed with Redwood and Cochineal was higher than that of untreated one. In case of Growell, though the K/S value Of the cationized fabric was higher than that of untreated one, the fabric showed poor levelness. Cationization of cotton had No effect on the dyeability of Goldthread and Amur cork tree.