Ravi Dyeware Company Limited supplies Basic Dyes. Ravi Dyeware Company Limited supplies Dyestuffs, Chemicals, and Pharmaceuticals, Textiles and Iron and Steel importing firm. The Basic Dyes are used in applications for Paper, Silk, Inks, Textiles. The Basic Dyes are water-soluble cationic dyes that are mainly applied to acrylic fibres, but find some use for wool and silk. Usually acetic acid is added to the dye bath to help the uptake of the dye onto the fibre. Basic dyes are also used in the coloration of paper.