ABSTRACT
The color fastness properties of colorant on wool fibers dyed by natural dye extracted (the active dye constituent in this species is quercetin which is a yellow plant flavonol from the flavonoid group) from the fruit of Rhus parviflora have been studied using a combination of mordants such as white vinegar + copper sulfate, white vinegar + potassium dichromate, white vinegar + ferrous sulfate and white vinegar + stannous chloride in the ratio of 3:1, 1:2, and 1:3 separately. Dyeing along with mordanting techniques, which included pre-mordanting, simultaneous mordanting, and post-mordanting, has been carried out. A study on fastness tests of dyed clothes is also under- taken. A large range of shades is obtained because of varying mordant ratios and combinations. The wash, rub, light, and perspiration fastness of the dyed samples have also been evaluated, giving fair to excellent fastness grades, and this evaluation is also useful for textile industries.
