The Effects of Chitosan on Dyeing Abilities of Cotton Fabric Dyed with Reactive Dyes

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Abstract:

To enhance dyeing ability of cotton fabric, the cotton fabric was modified with chitosan. The effects of chitosan modification on dyeing abilities, such as exhaustion, dye fixation and color yield (K/S)) were studied. The results show that: (1) Chitosan surface modification is of benefit in the increase of dye exhaustion, rising by 3.1% at least (2) The dye fixation of cotton fabric can be improved by surface modification with chitosan, increasing by over 4.2% (3) The K/S value of modified cotton fabric is much higher than that of unmodified fabric, greater by above 18.9%. (4) It can also be obtained that the optimal dyeing temperature should be 50 °C for chitosan modified cotton fabric.

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13-15

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February 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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