Effectively utilize the natural resources as mordants and dyes for dyeing of cotton

Marigold and Turmeric were used for the extraction of the natural dye material. Tannic acid, Cow dung, Pomegranate rind and Lemon juice were selected as natural mordant to standardize the dyeing effect of Marigold and Turmeric dyes on silk and knitted cotton fabric. The method appropriate for natural dye dyeing on knitted cotton was found to be premordanting by studying with other methods such as simultaneous and post mordanting method. The colour developed range on dyed materials is evaluated by dye uptake measurement and the improvement of colour strength on fabric using mordants was also examined. Tannic acid and pomegranate increase the colour strength effectively than the other. The dyeuptake values have been found to be good in all dyed samples but some cases produced poor fastness. Marigold with tannic acid and pomegranate rind produced good dye uptake and fastness properties. All the mordanted fabric showed good dye uptake.