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The effect of substitution on the dyeing and spectroscopic properties of some monoazo disperse dyes.
Author(s):
1. Ausaf Aleem: Applied Chemistry Research Centre Textile Section, PCSIR Laboratories Complex, Karachi, Pakistan
2. Mohammad Naeem: Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi, Pakistan
3. M. Aleem Ahmed: Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi, Pakistan
4. Kamran Ahmed: Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi, Pakistan
5. Mansoor Iqbal: Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi, Pakistan
Abstract:
A range of monoazo disperse dyes has been synthesized. The colour, dyeing and fastness properties of the dyes on polyester, nylon and secondary acetate fibre at 1/1 standard depth have been examined and rationalized in terms of dye structure. The visible absorption behaviour of the dyes was also investigated. In general, substitutions on the diazo component have a significant effect on the visible absorption maxima of the dyes. Increasing the solvent polarity also had a pronounced effect on the absorption maxima.
Page(s): 364-367
DOI: DOI not available
Published: Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 49, Issue: 5, Year: 2006
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