Journal of FARM SCIENCES, Vol 29, No 5 (2016)

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Eco printing of cotton with red sander bark (Pterocarpus marsupium)

G. MAHALE, I. GOUDER, R. KOTUR

Abstract


The revival of the use of natural dyes worldwide is primarily due to the increasing environmental consciousness.Their nontoxic, biodegradable properties are making them exceedingly popular. Hence an attempt was made to print cottonmaterial using natural dye source and to assess the colour strength and colourfastness properties. Desized cotton fabricpretreated with 20 per cent myrobolan extract was printed with four mordants; Potash alum, stannous chloride, CopperSulphate and Ferrous Sulphate. Two best concentrations for each mordant were selected. The mordant printed fabric wastreated in Red ander bark dye extract bath. Dyed samples were subjected to after treatment with 5 per cent of the fixing andleveling agents. Further the printed samples were assessed for their colourfastness to Sunlight (IS: 686-1985), Washing (IS:3361-1979) and Rubbing (IS: 766-1988). Irrespective of mordants, mordant concentrations and after treatments cottonsamples printed with red sander bark exhibited good to excellent fastness to sunlight, dry and wet crocking followed bywashing and attained higher values of colour strength (K/S). Cotton samples after treated with limejuice attained highervalues of colour strength followed by Potash Alum and Sodium Carbonate for all colourfastness tests.

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