A fluorine atom is used as the leaving group in the Cibacron F (CGY) range of 2- amino-4-fluoro-s-triazine dyes. The greater electronegativity of fluorine compared with chlorine results in a markedly higher level of reactivity for these dyes than for the 2-amino-4-chloro analogues. The substantivity and solubility of the dye structures can be modified considerably by careful introduction of appropriate substituents on the chromogen, the uncoloured arylamine and the bridging NH groups.
Re-activity: Moderate
Exhaust dyeing temperature: 40-60 C
Re-activity: Moderate
Exhaust dyeing temperature: 40-60 C
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Which part is the chromogen group?
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ReplyDeleteAminofluoro-s-triazine dyes exhibit remarkable photostability and chemical resistance, making them ideal for advanced textile and imaging applications.
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