Abstract


Origin of mankind can be justified by the use of naturaldyes. With the advent of synthetic dyes-stuff in abundance, a wide range ofcolours of remarkable fastness properties made its way making natural dyes apast. In the research work cotton fabric was pre-mordanted with different mordantsand then dyed with 4 natural vegetable dyes to get different colour. They wereKamala for yellow colour, Kutch for brown colour, Indigo for blue colour andalizarin for red colour. The basic fastness properties were checked. Bychanging the style of mordanting i.e. pre-mordanting, simultaneous mordantingand post- mordanting the fastness properties can be improved.


Introduction


With the expansion of synthetic chemical industry, there isa decline in the use of natural products. But recent studies show that somecategories of synthetic dyes e.g. azo dyes, are carcinogenic and number ofwestern countries ban the use of such dyes from using as the textile dyes.Govt. of India, Deptt. Of Environment and Forest has also brought out a Gazettebanning 74 azo dyes. The need for natural dyes aroused worldwide. Natural dyesare sourced from plants, animals and minerals. Vegetable dyes are the secretionproducts found almost universally in plant tissues. They are available invarious forms like wood, leaves, roots & tubes, barks ,flower, fruits,seeds, litchens and some natural mineral resources which are ecologicallyfriendly and do not create pollution to air and water. The natural organic dyesand pigments cover a wide range of chemical classes viz. Ketone, Amine,Quinones, Anthraquinoids, Fauoner, Flauanols, Flauanones, and Indigoids etc.


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About the Authors


The authorsare associated with Department of Textile Engineering in Anuradha Engineering College, Chikhli, Buldana (MS).