Sustainable Natural Printing of Cotton Fabric Without Metal-Based Mordant

Autor: Bivuti Vusan Mondal, S M Fijul Kabir, Ayub Ali, Md. Abdul Hannan
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Natural Fibers, Vol 19, Iss 17, Pp 15327-15342 (2022)
Druh dokumentu: article
ISSN: 1544-0478
1544-046X
15440478
DOI: 10.1080/15440478.2022.2124215
Popis: Endeavors on scoured and bleached cotton knit fabric to print with natural dyes and natural thickeners were made avoiding the use of detrimental metal-based mordanting agents. Three different natural dye sources (Rose flower-Rosa indica, Teak leaf-Tectona grandis and Tamarind-Tamarindus indica seed husk) extracted in aqueous medium were applied on 100% cotton knit fabric with three different thickeners prepared from the powder of Guar gum-Cyamopsis tetragonoloba, mango seed-Mangifera indica and tamarind seed-Tamarindus indicaon. The printed samples exhibited excellent wash fastness with grading 4–5 for all printed samples, light fastness 7 for tamarind seed husk and tamarind seed, rose flower and tamarind seed printed fabrics and rubbing fastness 4–5 for all printed fabrics. Dye-fiber bond formation was confirmed by FTIR, which revealed phenomena of strong covalent bond between dye and fiber molecules. Environmental impact assessments, chemical oxygen demand (COD) of 0–158 mg/L and total suspended solid (TSS) of 1–55 mg/L indicated that the wastewater generated was safe to discharge to the environment without treatment. Other essential features, determination of K/S value, CIE lab data and durability of printing paste demonstrated successful application of natural dyes and thickeners for printing cotton fabric.
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