Reference

Water-soluble trisazo dyes

Water-soluble trisazo dyes. Frank, Pierre; Sailer, Andre (Produits Chimiques Ugine Kuhlmann, Fr.). Fr. Demande FR 2324689 15 Apr 1977, 6 pp. (French). (France). CODEN: FRXXBL. CLASS: IC: C09B035-38. APPLICATION: FR 74-1096 14 Jan 1974. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Compds. of general structure I, where R is the residue of an aryl or aliph. coupler, R1 = OH or NH2, and R2 is a sulfo-contg. aryl group, are fast brown dyes for leather. I [R = 4,3-HO(HO2C)C6H3, R1 = NH2, R2 = C6H4SO3H-4) [65180-61-2], reddish brown on leather, was prepd. by tetrazotizing 4,4'-diaminobenzenesulfonanilide [16803-97-7], coupling with 2-hydroxybenzoic acid [69-72-7] and then 1,3-phenylenediamine [108-45-2], and coupling the product with diazotized 4-aminobenzenesulfonic acid [121-57-3].

Synthesis and application of reactive dyes

All Rights Reserved. Synthesis and application of reactive dyes. Patel, Keshav C.; Patel, Naitik B.; Patel, Bhavesh M. (Department of Chemistry, Veer Narmad South Gujarat University, Surat 395 007, India). Chemistry (Rajkot, India), 3(1), 35-40 (English) 2006 Trade Science Inc. CODEN: CHEMCT. ISSN: 0972-8376. DOCUMENT TYPE: Journal CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 25, 40 Thirteen hot brand reactive dyes have been prepd.Several substances with their cas registry numbers 918134-34-6 and 16803-97-7 may be metioned in this study. by coupling tetrazotized 4,4'-diaminodiphenylsulfonamide with various cyanurated coupling components and their dyeing performance on silk, wool, and cotton has been assessed. These dyes have been found to give variety of color shades with very good depth and levelness on the fibers. The purity of dyes was checked by TLC. The IR spectra showed all characteristic bands and PMR spectra of a representative dye showed all the expected signals. The dye bath exhaustion on the different fibers was 63-75%. The dyed fiber showed moderate to very good fastness to light, washing, and rubbing. .