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Title: Syntheses of bisazo reactive dyes based on 6,6' -methylene-bis-anthranilic acid and their application on various fibres
Authors: Patel, R B
Patel, P S
Patel, S K
Patel, K C
Keywords: Bisazo reactive dyes;Dyeing;Silk;Viscose rayon;Wool
Issue Date: Mar-1998
Publisher: NISCAIR-CSIR, India
Abstract: Ten bisazo reactive dyes (VIIa-j) have been prepared by coupling diazotised 6,6'-methylene-bis anthranilic acid (III) with various anilino cyanurated coupling components, viz. anilino cyanurated H-acid, Schaffer acid, G-acid, I-acid, K-acid, Tobias acid, N-phenyl J-acid, N-methyl J-acid, Gamma acid and R-acid (VIa-j), and their dyeing performance on viscose rayon, wool and silk fibres has been assessed. All the dyes gave a wide range of brown to blue shades with very good depth and levelness on each fibre. The purity of VIIa-j was checked by thin layer chromatography. The IR spectra showed all characteristic bands. The percentage dye-bath exhaustion on different fibres was reasonably good and acceptable. The dyed fibres showed fair to very good fastness to light, washing and rubbing.
Page(s): 59-62
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.23(1) [March 1998]

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