Abstract:
An aqueous extract of different veg etable colourants, viz. Punica granatum, Camellia sinensis
and Rheum emodi, can be used for dyeing of wool and silk
fabrics following a pad–steam process in the absence and
presence of magnesium sulphate, aluminium sulphate and
ferrous sulphate. Among different mordanting methods, a
simultaneous application of salt produces most balanced
improvements in terms of dye receptivity and colour fast ness properties assessed in terms of washing and light of
the dyed substrates. Among the mordanting agents used,
aluminium sulphate and ferrous sulphate are found to be
superior as compared to magnesium sulphate
