Synthesis and Structural-reactivity Studies of Bifunctional MCT/SES (Monochlorotriazine/ Sulphatoethylsulphone) Azo Reactive Disperse Dyes Applied to Wool and Polyester Fabric
Ishegbe Joyce Eko
Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria.
Bello Kasali Ademola
Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria.
Nkeonye Peter Obinna
Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria.
A. A. Kogo
Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Reactive disperse dyes containing monochlorotriazine/sulphatoethylsulphone reactive moieties were synthesized by condensing aniline with cyanuric chloride and further reacting it with a series of monoazo dyes obtained by diazotising 1-aminobenzene-4-β-sulphatoethylsulphone and coupling with various substituted 2-amino-4-phenylthiazole derivatives. The dyeing performance of the dyes was evaluated on polyester and wool fabrics. The dyes obtained gave various shades ranging from reddish to bright red colours. They had good depth and good levelling properties. They dyed fabrics showed moderate to good light fastness properties and very good to excellent fastness to washing and perspiration. The dye bath exhaustion on the polyester and wool fabrics were found to be very good and their fixation values were moderate.
Keywords: 2-amino-4-phenylthiazole, sulphatoethylsulphone, monochlorotriazine, disperse-reactive and exhaustion.