keywords: Diazo disperse dyes, synthesis, textile fabrics
Seven diazo disperse dyes based on 2-chloroaniline and 4-methoxy-2-nitroaniline components were synthesized by the traditional diazotization coupling strategy. The dyes were characterized using proton nuclear magnetic resonance (1H NMR), 13C nuclear magnetic resonance (13C NMR), Fourier transform infrared (FTIR) and UV-visible spectroscopy analyses to confirm the structures. The dyes were applied onto polyester and nylon fabrics. The results of the fastness tests on polyester substrate were observed to be technically better compared to those on nylon 66 fabric in terms of light fastness (grade 6-7). However, the results of the wash, sublimation and rubbing fastness on both fabrics were similar (grade 4 to 4/5) with little variations. From the technical point of view, it can be concluded that the dyes could meet the requirements to be utilized for dyeing textile fabrics meant for window blinds (curtains) as well as in automobile seat covers.