Studies on Natural dyes obtained from Tecoma capensis flower
J. Environ. Nanotechnol., Volume 10, No 1 (2021) pp. 25-29
Abstract
In this study, natural colors were produced from the flower of Tecoma capensis. The dyes were extracted from the petal part of the plant using the solvent extraction method of acidified methanol. The natural colors were then converted into a powder form in nano-size scale using a ball mill grinder. Cotton fabrics were used as substrate and were colored using several natural and synthetic mordants. The use of different solvents for extraction and mordants for dyeing resulted in different color shades on the cotton fabrics. The color fastness in washing tests revealed that fastness in washing ranges from 4 - 4/5 and the change in color ranges from 2/3 - 3/4. The findings will benefit and promote the dyeing and printing industries.
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