Extraction of Ecofriendly Leather Dyes from Plants Bark

Abstract

. Present study is focused on the isolation of ecofriendly dyes from the bark of different plants. Aqueous extracts of the bark of Mangifera indica L ., Syzygium cumini L . and Eucalyptus camaldulensis Dehn were used to dye the crust blue leather of goat. Four different types of mordents CuSO 4 , FeSO 4 , KMnO 4 and Potash Alum were used. The fastness properties (washing, heating, sunlight and rubbing) were also evaluated by grey scale. Syzygium cumini L extract showed more variation in colours. M. indica L. showed good fastness properties as compared to others. The formation of light and soft colours with different mordants was observed.