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Effect Of Chitosan's Molecular Weights On Mangosteen Dye Fixation On Cotton Fabric, C Suitcharit, F Awae, W Sengmama, K Srikulkit
Effect Of Chitosan's Molecular Weights On Mangosteen Dye Fixation On Cotton Fabric, C Suitcharit, F Awae, W Sengmama, K Srikulkit
Journal of Metals, Materials and Minerals
The effect of chitosan's molecular weights (Mw) on mangosteen dye fixation on cotton was studied using chitosans with Mw of 226 kDa (CTS-Mw I; native chitosan), 10.8 kDa (CTS-Mw II), and 7.2 kDa (CTS-Mw III). The preparation of chitosan with different Mws was carried out using sodium nitrite in acid media (depolymerization process). The obtained chitosans were applied onto cotton fabric. The effect of chitosan concentrations on fixation and fastness properties of mangosteen dye extract was studied. The results showed that an increase in concentrations of depolymerized chitosans (CTS-Mw II and III) yielded an increase in N% contents. Nonetheless, the …