IMPORTANCE OF MOLECULAR WEIGHT OF CHITOSAN BIOPOLYMER IN DYEING OF COTTON FABRICS AND CHANGES IN FIBER SURFACE PROPERTIES
Abstract
In the experiments, the technology of cationic dyeing with chitosan and subsequent dyeing of cotton fiber fabric with active dyes was studied. First, it was studied which of the biopolymers of chitosan with different molecular weights 1 (low), 2 (medium) and 3 (high) is suitable for dyeing processes. Then, the effect of chitosan concentration on the surface properties of cotton fabric was studied. It was found that 1% solution of chitosan has a positive effect on its capillarity and surface potential. As a result, the efficiency of the dyeing process increases dramatically.
References
1. Патент РУз IAP05849 «Комплексная безотходная технология переработки куколок тутового шелкопряда». Рашидова С.Ш., Рузиев Ф.И., Вохидова Н.Р. ва б.
2. Elamri, A., Zdiri, K., Harzallah, O. Chitosan: A biopolymer for textile processes and products. https://doi.org/10.1177/00405175221127315
3. Liu, A., Qi, B., & Ku, L. (2025). Chitosan-Based Composites for Sustainable Textile Production: Applications across the Lifecycle. Clean Technologies, 7(4), 95. https://doi.org/10.3390/cleantechnol7040095
4. Bhuiyan, M. R., Shaid, A., & Khan, M. A. (2014). Cationization of Cotton Fiber by Chitosan and Its Dyeing with Reactive Dye without Salt. Chemical and Materials Engineering, 2(4), 96–100. https://doi.org/10.13189/cme.2014.020402
5. Vokhidova, N.R., Rasulova, K.M., Nabiyeva, I.A., Khudoyberdiyev Sh.Sh. (2025). THE EFFECT OF CHITOSAN TREATMENT ON COTTON FABRICS [Dataset]. In Zenodo (CERN European Organization for Nuclear Research). https://doi.org/10.5281/zenodo.17263454
6. Instructions for use ”Lab. testing machines “DLS-6000”. Korea industrial technology ROD NO. 30_(1/2) 2008. P.71
7. Абдукаримова М.З., Набиева И.А., Расулова К.М. Толали материалларни пардозлашнинг назарий асослари. Т.: Фан зиёси, 2020 й. 337 б.
8. Netzer, F., Manian, A. P., Bechtold, T., & Pham, T. (2025). Insights into the sorption mechanism of anionic dye molecules on cationised cellulose fibres via zeta potential analysis. Surfaces and Interfaces, 77, 108043. https://doi.org/10.1016/j.surfin.2025.108043.
9. «Теоретические основы отделки волокнистых материалов» М.З.Абдукаримова, И.А.Набиева, М.Х.Мирзахмедова, К.М.Расулова, А.М.Киселев. Учебник./Под ред. д.т.н., профессора А.М.Киселева.- Ташкент.: «Фан зиёси». 2021, 307 с.
10. Choudhury, A. K. R. (2014). Coloration of Cationized Cellulosic Fibers–A Review. AATCC Journal of Research, 1(3), 11–19. https://doi.org/10.14504/ajr.1.3.2
