Dyeing of Silk Fabrics with Garcinia Dulcis (Roxb.) Kurz Bark: Comparison of Fastness Properties and Colour Strength by Padding and Post-Mordanting Technique

Abstract: The present paper deals with the application of natural dye extracted from Garcinia Dulcis (Roxb.) Kurz bark on silk fabric by using post-mordant and pad-dry processes and also evalation of effect of metal modants as differnt concentration on dyeability, colour values (L*, a*, b*) and colour strength (K/S), and fastness properties. Silk fabrics dyed with Garcinia Dulcis (Roxb.) Kurz bark extract and stannous chloride (SnCl2) showed a pale yellow shade, while those dyed with alum (AlK(SO4)2 bright yellow colour. Silk substrates dyed with CuSO4 gave a yellowish-green colour, while those dyed with FeSO4 had a yellowish brown colour. The fastness properties showed fair to good rating, whereas the colour fastness to perspiration was at a poor level