Dyeing of Cotton Fabrics using Natural Dye Extracted from Mangosteen Pericarps

摘要

Natural dye was extracted from the mangosteen pericarps using UE method. The work dealed with the investigation of cotton fabric samples dyed with natural dye. The effects of different dye concentrations and pH values were estimated by the dye-uptake(K)and the color difference(AE). And the effects of different dyeing methods of direct dyeing, pre-mordant and after-mordant were tested when alum was used as a mordant. The highest K and AE were obtained on using pre-mordant method when dye concentration was used as 30g/L and pH value as 3. And the color fastness properties of rubbing, washing and perspiration were tested. Compared with the pre-mordant method, it was quite satisfactory for after-mordant method where its ranged between 2-3 to 4-5.