Turmeric Dyeing of Cotton Fabrics using Tie-Dyeing Techniques
Keywords:Natural dyes, turmeric roots, mordants, tie-dyeing, cotton fabric, fastness properties
Tie-dyeing is a resist-dyeing technique which for years has been used by SMEs to produce attractive textile fabrics. However, the technique is challenged by the use of synthetic dyes which are not environmentally friendly and the growing consumers’ environmental awareness. Accordingly, researchers and industrialists are forced to explore the alternative natural dyes in response to the above challenges. Among the natural source of dyes available abundantly in Tanzania, but are yet to be fully exploited for applications via tie-dyeing technique are turmeric (Curcuma longa L.) roots commonly used for food coloring.
In this study turmeric roots were investigated for their potential as dyes for coloration of cotton fabrics through tie-dyeing technique. Turmeric dyes were extracted through boiling of powdered turmeric roots in water followed by filtering the mixture, and applying it to a pre-mordanted and tied fabric. For analysis purposes, un-tied (plain) cotton fabric was also dyed following the same procedure. The findings of this study suggests that, turmeric dyes can be applied on cotton using tie-dyeing technique and produce golden-yellow color on fabrics. Additionally, pre-mordanting of cotton increased the color depth of dyed materials while improving their fastness properties with respect to washing and both wet and dry rubbing.