Abstract
Some new azo acid dyes were prepared by coupling various diazotized acid components such as anthranilic acid, sulphanilic acid, laurent acid, peri acid, tobias acid, H-acid, J-acid, gamma acid, sulphotobias acid, 4-aminotoluiene-3-sulphonic acid, 5-sulpho- anthranilic acid, 2-naphthylamine-3,6,8-trisulphonic acid, bronner acid, metanilic acid and cleve acid with 4,7-dihydroxy-1,10-phenanthroline-2,9-dione. The dyes were characterized by elemental, IR and TLC analyses. Their dyeing performance as acid dyes has been assessed on viscose rayon, wool and cotton fibres.
Highlights
The newest additions of existing acid dyes are the centre of attraction in dyestuff research[1]
Various dyes based on quinazoline, quinoline and 4-oxo-quinazoline ring system have been reported to be useful on natural and man-made fibres, showed high affinity and good dyeing performance[2,3,4]
It was thought interesting to study the synthesis, characterization and dyeing performance of various acid dyes based on 4,7-dihydroxy-1,10-phenanthroline-2,9dione heterocyclic ring system
Summary
The newest additions of existing acid dyes are the centre of attraction in dyestuff research[1]. Various dyes based on quinazoline, quinoline and 4-oxo-quinazoline ring system have been reported to be useful on natural and man-made fibres, showed high affinity and good dyeing performance[2,3,4]. It was thought interesting to study the synthesis, characterization and dyeing performance of various acid dyes based on 4,7-dihydroxy-1,10-phenanthroline-2,9dione heterocyclic ring system. Coupling of diazotized acid component with (A)
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