Department of Home Ssience, D.D.U. Gorakhpur University Juhari Devi P.G. College, CSJM Kanpur.
Indigo is one of the most ancient blue dyes used by men for textiles. The colouring pigment is present in the leaves of a number of Indigofera species, of which the Asion I. tinctoria , African I. arrecta and I. flaccidifolius have been the most important for commercial production
Natural dyes, phyto dyes and plant pigment