Abstract
The popularity of natural dyes is steadily increasing due to their properties such as soothing colors, non-carcinogenic & non-hazardous nature, and also being safe for the environment. Some natural dyes also have been reported to have antibacterial properties. This study was performed to explore the antibacterial efficiency of selected plant products that were used in the dyeing of fabric. Flowers of Butea monosperma and Tagetes erecta were used for the dye extraction. Banana pseudostem sap and Punica granatum rinds taken as biomordant. High-performance thin-layer chromatography was conducted for the identification of components of B. monosperma, T. erecta, Banana (Musa sp.) pseudostem sap and P. granatum rind. Dyeing of two types of cotton fabrics was performed at pre-optimized conditions. The antibacterial activities of dyed fabrics were evaluated qualitatively and quantitatively. Various phytochemical constituents in the dyeing plant materials already have antibacterial properties. Fabrics dyed with B. monosperma, T. erecta, Banana (Musa sp.) pseudostem sap and P. granatum rind showed high resistance towards Escherichia coli and Staphylococcus aureus.
Highlights
Natural dyes are one of the most important natural products obtained from plants, animals, minerals, and micro-organisms
The dye stuff obtained from flowers of Butea and Marigold used for coloring of cotton fabrics at optimizing dyeing conditions with Banana pseudostem sap and Pomegranate rind as mordants
Banana pseudostem sap has pale yellow in color which does not show any dominance on dyed fabrics whereas, Pomegranate rind extraction was dusty in color which showed a slight dusty effect on dyed fabric
Summary
Natural dyes are one of the most important natural products obtained from plants, animals, minerals, and micro-organisms. These dyes are used to color fabric, food, cosmetic products, and in decorative arts from the ancient period. A days awareness spreads for zero discharge emission, global warming, and ecosystem health for which green products are again in demand (Sagnella et al 2014; Sangella et al 2015). In this concern, people are taking interest in hygiene and safe clothing. It becomes necessary to apply an antibacterial finishing on cotton fabrics. In this research work dyeing of cotton fabric is done with natural dyes and mordants to explore safe and hygienic clothing
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