Adsorption Behavior of Annatto Dye on Cotton Fabrics Modified by Sericin

Abstract:

Sericin was investigated as modifier for surface modification on cotton fibers. The measurement of zeta potential was initially used to indicate the effectiveness of the modification. It was found that the sericin largely developed the positive charge on cotton fibers following a decrease in the pH. Adsorption studies of the annatto dye on the modified cotton fibers showed that sericin enhanced the adsorption capacity of the annatto dye on cotton fibers. The results of the zeta potential and the adsorption revealed that the uptake of annatto dye on modified cotton fibers occurred via electrostatic attractions between the anion of the dye and the cationic segments on the modified cotton fibers.

• Periodical: Advanced Materials Research (Volume 441)
• Pages: 111-115
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.441.111
• Online since: January 2012
• Authors: Lan Zhou, Jian Zhong Shao, Li Qin Chai, Guo Dong Fu
• Keywords: Adsorption, Annatto Dye, Cotton, Sericin

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DOI: 10.1016/j.dyepig.2006.09.008