Dyeing of polyester fibers with sulfur- and nitrogen-containing anthraquinone derivatives

A series of disperse dyes, 9,10-anthraquinone containing dithiocarbamate, thiourea and triazole fragments, were prepared via consecutive refunctionalization of aminoanthraquinones in our previous studies and their structures were confirmed by the 1H, 13C NMR, IR spectra, LC-MS and elemental analysis data. The obtained compounds were applied on polyester fabrics by the exhaustion method at 130°C at pH 4.0-5.0, and their dyeing properties were evaluated by color measurements, the washing fastness test and the light fastness test. Many of these dyes gave solid and level dyeings on polyester fabric with low % concentration of dye. The dyed samples displayed very good color fastnesses. The color change and staining test results were quite good with ratings of “4-5” or above. The light fastness test results were also satisfactory for the most of the dyed samples.