Dyeing Performance of Dyes Derived from 2-Amino Heterocycles on Leather
1 Department of Chemistry, Ahmadu Bello University, Zaria
2 Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria
3 National Institute for Leather and Science Technology, Zaria
4 Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria
* Corresponding author: mrsiyun@yahoo.com
2 Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria
3 National Institute for Leather and Science Technology, Zaria
4 Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria, Nigeria
* Corresponding author: mrsiyun@yahoo.com
Abstract
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 absorbed optimally at pH 3. It was found that increase in dyeing time increases percent exhaustion such that 60 % exhaustion in 20 min. was increased to 85-90 % in 40-60 min. The exhaustion of Dye 1 was 89.4 % at 50 oC while that of Dye 2 was 92 % at 65 oC. The dyeings showed very good fastness to rubbing and good fastness to light.
Keywords
2-amino-4-phenylthiazole
2-amino-4-methyl-5-carbathoxythiazole
monoazo
leather
How to Cite
O.R.A., I., K.A., B., D, P. J., F, T. S., & S., A. (2019). Dyeing Performance of Dyes Derived from 2-Amino Heterocycles on Leather. Nigerian Journal of Textiles, 5(1), 54-57.
I. O.R.A., B. K.A., P. J. D, T. S. F, and A. S., "Dyeing Performance of Dyes Derived from 2-Amino Heterocycles on Leather," Nigerian Journal of Textiles, vol. 5, no. 1, pp. 54-57, August 2019.