EVALUATION OF COLOUR FASTNESS PROPERTIES OF MICROBIAL PIGMENT EXTRACT FROM NOVEL SOURCES FOR TEXTILE ECOFRIENDLY DYEING & STUDY OF CIE LAB COLOUR VALUEAbstract
The pigment has acquired the greatest importance because of its excellent color value. The potential use of various carbon sources as microbial pigments for textile coloration. Flowers, leaves, fruits, vegetables, and tubers are the rich source of the secondary metabolites. In the current study, the use of microbial extract isolated from a fermentation process from 14 varieties by using Penicillium purpurogenum as a natural dye was studied. The potentiality of the dye extract was classified by dyeing with 100% cotton under suitable conditions. The dye ability, colorfastness (wash, light, rubbing) and Munsell color value, hue, L, a, b of dyed liquids were studied by using computer color matching software were studied. The color of the dye was not affected by washing. The results reveal that Hibiscus rosa sinensis, Ixora coccinea and Nerium oleander having highest K/S values. It could be seen that P. purpurogenum responded by producing high concentrations of pigment from Tagetes patula flower (crude) than the other combinations. It is to their ability for the formation of coordinate complexes with cotton material. In that view the ability of the pigment, it is a good application to the dyeing industry.
S. V. A. Sriram * and S. Dhurjeti
Department of Biotechnology, GIT, GITAM (Deemed to be) University, Visakhapatnam, Andhra Pradesh, India.
13 May 2019
12 September 2019
13 November 2019
01 March 2020