Prof. Bello K.a.

Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria

belloka2003@yahoo.com

3 Publications

Publications 3

Research Article Vol. 5, Issue 1

Synthesis and Application of Monoazo Disperse Dyes Derived from 4-amino-Nhexadecyl-1, 8-naphthalimide and their Dyeing Performance on Polyester Fabrics

Magaji I. Y^*, Abdulraheem Giwa, Bello K.A.

A series of monoazo disperse dyes were synthesized using 4-amino-N-hexadecyl-1, 8-naphthalimide by coupling with different substituted electron rich arenes in appropriate reaction conditions. The synthesized diazo component and the dyes were purified by recrystallization method. The structures of the diazo component and the dyes were confirmed ...

Aug, 2019 Vol. 5, Issue 1

PDF

Research Article Vol. 5, Issue 1

Synthesis and Application of Monoazo Acid Dyes Derived from 5-amino-4- cyano-2-methyl-N-phenylthiophene-3-carboxamide on Chrome Tanned Leather and Nylon 6,6 Substrate

Magaji I. Y^*, Abdulraheem Giwa, Bello K.A.

A series of new mono azo dyes have been synthesized in moderate yield from diazotization of thiophene and coupling with R, H, J and ϒ acid. The dyes were characterized by spectral studies. The dyeing potentials were assessed by applying them on chrome tanned leather and nylon 6,6 substrates. The dyes were found to give shade of red dark blue and da...

Aug, 2019 Vol. 5, Issue 1

PDF

Research Article Vol. 5, Issue 1

Dyeing Performance of Dyes Derived from 2-Amino Heterocycles on Leather

Iyun O.R.A.^*, Bello K.A., Putshaka J D, Tanko S F, Abdullahi S.

The dyeing properties of dyes synthesized from 2-amino-4-phenylthiazole (Dye 1) and 2-amino-4-methyl-5- carbathoxythiazole (Dye 2) on leather were studied. The effects of pH, temperature, dye concentration, dyeing time as well as rubbing and light fastness properties of the dyes were evaluated. Results obtained indicate that the dyes used were abso...

Aug, 2019 Vol. 5, Issue 1

PDF

Back to Articles