Synthesis of Some Azo Disperse Dyes from 1-Substituted 2-Hydroxy-6-pyridone Derivatives and Their Colour Assessment on Polyester Fabric

@inproceedings{Sakoma2012SynthesisOS,
  title={Synthesis of Some Azo Disperse Dyes from 1-Substituted 2-Hydroxy-6-pyridone Derivatives and Their Colour Assessment on Polyester Fabric},
  author={Kurenkaka Johnson Sakoma and Kasali Ademola Bello and Mohammed Kabir Yakubu},
  year={2012}
}
The synthesis of a series of 3-(p-substituted phenylazo)-6-pyridone dyes which is suitable for the dyeing of polyester fabrics, is described. Visible absorption spectra of the dyes were examined in various solvents and the compounds in solution exhibited hydrazone-common anion equilibrium. The electronic absorption spectra cover a λmax range of 404 464 nm in DMF at uniformly high absorption intensity between 5.33 × 10 8.55 × 10 l·mol·cm and gave bright intense hues of yellow to orange on… CONTINUE READING

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