Dyeing of wool fabric with natural dye extracted from Dalbergia Sissoo using natural mordants

Abstract

Natural dyes demand has increased due to their exceptional properties such as non-toxic, sustainable extraction methods, effluent free application and can be applied in mild dyeing condition as compared to synthetic dyes. The sustainable natural dyeing using Dalbergia Sissoo on wool has been achieved by use of bio-mordants such as Aloe Vera and Emblica Officinalis (Amla). These mordants have very low environmental impact as compared to metal mordants. The aim of the study is to extract natural dye from Dalbergia Sissoo bark and its application on wool fabric using natural mordants. Three techniques Pre, meta and post mordanting have been adopted and then wool fabric is dyed. The color strength (K/S values) observed much better in post mordanting technique than Pre and Meta mordanting techniques. Results have shown that using natural mordants not only improved the fixation of natural dyes but the antibacterial activity was also developed. This work is an approach towards the development of sustainable processing of textiles.