Open AccessENHANCEMENT OF DYE ABSORPTION OF COTTON FABRIC THROUGH OPTIMIZATION OF BIOPOLYMER TREATMENT
Author(s) -
Mona Verma,
Neha Gahlot,
Surender Singh,
Neelam M. Rose
Publication year - 2021
Publication title -
cellulose chemistry and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.302
H-Index - 32
eISSN - 2457-9459
pISSN - 0576-9787
DOI - 10.35812/cellulosechemtechnol.2021.55.33
Subject(s) - chitosan , dyeing , biopolymer , textile , chemistry , natural dye , environmentally friendly , alum , absorption (acoustics) , pulp and paper industry , kenaf , chemical engineering , polymer , composite material , materials science , organic chemistry , fiber , ecology , engineering , biology
"Environmental pressure is pushing towards the ‘green’ alternatives to synthetic or petro-chemically derived products.Biopolymers are replacement materials suitable for different chemical processes. The surface modification of textilefibres using biopolymers is considered as the best route for modern textile treatments, to minimize the generation ofwastewater containing salts, unfixed dye and other chemicals, which may affect the environment and human health. Toavoid these problems, the pretreatment of cotton with biopolymers is a safe option in eco-friendly dyeing. In the presentwork, chitosan was selected for application on cotton textile for improving its dyeing efficiency with natural dye (onionskin). Chitosan is a versatile polycationic polysaccharide possessing hydroxyl and amino functional groups, which caneasily be fabricated with desired functional properties. The chitosan treatment was standardized on the basis of dyeingproperties, such as percent dye absorption, colour strength (K/S) and wash fastness. When the chitosan treatment wasapplied with optimized parameters, it was found that the chitosan treated onion skin dyed fabric showed higher dyeabsorption (66.17%), colour strength (16.52) and wash fastness rating than the alum treated dyed fabric. Thus, thechitosan treatment enhanced the dyeing properties of cotton fabric towards the application of natural dye (onion skin),without using any metallic salt. To conclude, the chitosan treatment is a safe and environmentally benign route toimprove the natural dye absorption of cotton fabrics."