Dyeing of Natural Dyestuff Extracted from Henna to Silk Fabric

A natural dye was isolated from the leaves of Henna . The extracted dye was applied to silk fabric, The dyeing effects of fabric without and with different mordants were investigated . The results showed that the dyeing of silk using the post-mordanting method with ferrous sulfate、 copper sulfate and alum、 rare earth not only provided better depth of shade but also provided better wash fastness and rub fastness than without mordant. In additon, green and orange silk can obtained selecting rare earth as mordant.