Synthesis and characterization of new cationic dyes for synthetic fibres

The paper presents a class of new cationic dye derivatives from compact condensed system 2-aminothiazolo[5,4-c]pyridine. These dyes were purified and analysed by physical–chemical methods (TLC, HPLC, vis, IR, NMR, melting point, elemental analysis) for the identification of their chemical structures. Also, the conditions of dyeing process and tinctorial tests for the cationic dyes were studied.