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Among all textile sectors, textile dyeing has a major contribution to environmental load in the form of effluent due to the use of hazardous chemicals, high consumption of water, and use of synthetic dyes. The depletion of any of the causes mentioned above could lead the process toward sustainability and this research is focused on the same concept. In this paper, a natural dye extracted from  Dalbergia sissoo  plant leaves is used to dye wool fabric, which is a natural fiber and is being used in winter and high-quality clothing. The natural dye on wool fabric was applied with the help of different mordants, namely ferrous sulfate, alum, and stannous chloride. In this research, the wool fabric was mordanted with different mordant techniques such as pre-mordanting, meta-mordanting, and post-mordanting, and the effect of dye extract concentration, mordant type, mordant technique, and salt concentration were studied. The results showed that color coordinate values were maximum with ferrous sulfate mordant using the meta-mordant technique.

Dyeing of Wool with Dalbergia sisso as an Eco-friendly Substituent of Conventional Hazardous Synthetic Dye