Browsing by Author "Vaseva R."
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Item Synthesis and investigation of some acid azo dyes for wool(2015-01-01) Miladinova P.; Vaseva R.; Lukanova V.The present paper describes the synthesis of one mono and two bisazo dyes with yellow, orange and red colour, which can be used as dyes for wool. They were obtained by the diazotization of a monoazo component of the mono-azobenzene type, followed by coupling with I-acid and H-acid. The monoazo components were obtained by the diazotization of sulphanilic acid and coupling with p-toluidine. All synthesized dyes were later analyzed by chromatography, IR and UV-Vis spectrometry. The dyeing performance of all dyes was evaluated on wool fabrics and their fastness properties were studied.