Dyeability of cationised cotton and nylon 6 fabrics using acid dyes

Cationisation of cotton and nylon 6 fabrics has been done using Solfix E, Tino fix ECO, Acramine berfix K and cetyl trimethyl ammonium bromide to impart cationic sites on fabric surface for improving their substantivity to acid dyes. Pre-cationisation of cotton and nylon 6 fabrics improves the depth of the colour as well as fastness properties. In all the cases, the overall colour fastness of cationic cotton dyed with acid dyes is found to be comparable to the colour fastness of the nylon 6 dyed with same acid dyes.