Synthesis, Characterisation And Dyeing Properties Of New Bifunctional Dichloro-S- Triazinyl (Dct) Azo Reactive Dyes Based On 4,4’-Diaminodiphenylsulphone. Part: 2: On Nylon 6 Fabric
Oforghor, A.O
Nasarawa State University, Keffi, Department of Home Science and Management
Yakubu, M .K
Ahmadu Bello University, Zaria, Department of Polymer and Textile Engineering
Olua E B
University of Nigeria, Nsukka, Department of Home Science and Management
Abstract
A series of five new bifunctional azo reactive dyes containing two anionic Dichloro-s- triazinyl (DCT) derived from 4,4’-diaminodiphenylsulphone as a tetrazotised solution were prepared by coupling to 4-nitroanilino cyanurated acids (H-acid, J-acid, Laurent acid, Tobias acid and Gamma acid).The synthesised dyes were applied on nylon 6 fabric under typical exhaustion process and their dyeing properties were evaluated. The structures of the synthesised dyes were characterised and confirmed by melting point, UV-visible spectroscopy, FT-IR spectroscopy, 1HNMR, and MS. The percentage exhaustion and percentage fixation of the synthesised dyes on nylon 6 fabric was very good. All the synthesised dyes gave well to excellent properties to washing, light and perspiration respectively.