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Трубникова, Л И

doi:10.1023/a:1009402406102

Cited by 2 publications

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“…Intensive efforts have been made in the investigation of monoazo dyes in which a heterocyclic system replaces one of the usual carboxylic systems. Many different heterocyclic diazo components have been studied, especially derivatives of thiazole, imidazole, benzimidazole owing to the marked bathochromic effect of such groups [6][7][8][9][10][11][12] A majority of acid dyestuffs are sulphonic acid derivatives of azo dyes. The free dye acids are difficult to isolate and are hydroscopic in nature making it difficult to pack and store them.…”

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confidence: 99%

Synthesis and Application of Acid Dyes Based on 3‐(4‐Aminophenyl)‐5‐benzylidene‐2‐substituted phenyl‐3, 5‐dihydroimidazol‐4‐one

Wadia

Patel

2008

Journal of Chemistry

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A series of eight novel heterocyclic based monoazo acid dyes were synthesized using various substituted imidazol-4-one as diazo component and coupled with various amino-napthol sulphonic acids. The resultant dyes were characterized using standard spectroscopic methods and then dyeing performance on wool fabric was assessed. Final results concluded that exhaustion (%E) of the dyes on wool fibers increased with decreasing pH of application and that fixation (%F ) of the dyes on wool fibers increased with increasing pH of application and the highest total fixation efficiency was achieved at pH 5. Wash and light fastness properties of prepared dyes showed encouraging results.

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