A study of behavior of sesame dyeing on nylon

Sesame dye was successfully extracted from food products freely available in the market by a simple boiling method. The extraction temperature and time were 100 °C and 138.3 min, respectively, and the concentration of sesame dye extract was 425 g/L. The sesame dye extract, when used for dyeing nylon fabric, followed the Beer-Lambert law. The optimal conditions for dyeing with sesame dye extract were extracted concentration = 100 g/L, pH = 4, and dyeing temperature = 100 °C. The sesame dye extract was used for dyeing pre-mordanted nylon fabric and good colorfastness results were achieved.