Dyeing of cotton and silk fabric with Archidendron jiringa using physalis peruviana (Letup-letup) leaves and Tamarindus indica (Tamarind) seed as natural mordants / Izzatul Mirra Jasni

The study is about dyeing with natural mordants. Mordant is the chemical link that fixes the dye to a substrate by combining with the dye pigment to form an insoluble compound. Physalis peruviana (Letup-letup) leaves and Tamarindus indica (Tamarind) seed were use as natural mordants. The objectives of the study are to extract Physalis peruviana (Letup-letup) leaves and Tamarindus indica (Tamarind) seed as natural mordants for the dyeing of cotton and silk fabric using Archidendron Jiringa pods as natural dyes. Natural mordants were extracted using boiling extraction. The dyed fabrics were test for colourfastness towards washing, light and rubbing/crocking. Results showed shade of the fabrics obtained was dark brown on silk and brown on cotton after Tamarindus indica (Tamarind) was used as mordant. For fabrics mordanted with Physalis peruviana (Letup-letup) leaves, light yellow were obtained in silk and cotton. In terms of colour properties, it was found that the fabrics that mordanted with Tamarindus indica seed have better colour fastness to washing, light and rubbing/crocking than those mordanted with Physalis peruviana leaves.