Performance and Microbial Studies of Acid Anthraquinone Dyes Containing Triazole on Various Fibres

Author(s): Navin B. Patel and Ashok L. Patel

A series of anthraquinone acid dyes were synthesized by condensation of bromamine acid with 1, 2, 4-triazole. This condensed product is diazotized and coupled with various naphthalene based acid coupling components to get novel series of acid anthraquinone dyes. The dyeing performance on wool, silk and nylon fibres has been assessed. All the synthesized dyes gave orange to violet shades. The purity of the synthesized dyes was checked by thin layer chromatography. The IR spectra showed all characteristic bands and representative dye 1H NMR spectra showed all the signals. The percentage dyebath exhaustion on different fibres was good and acceptable. The dyed fibres showed moderate to very good fastness to light, washing and rubbing. All the synthesized dyes have been screened for their antimicrobial activity.

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