OJAppS  Vol.2 No.1 , March 2012
Synthesis of Some Azo Disperse Dyes from 1-Substituted 2-Hydroxy-6-pyridone Derivatives and Their Colour Assessment on Polyester Fabric
Abstract: 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 × 104 - 8.55 × 104 lmol–1cm–1 and gave bright intense hues of yellow to orange on polyester fabrics. The colour parameters of the dyed fabrics were measured and the dyes have excellent exhaustion between 72% - 79% for polyester fabrics, more intense and of very good fastness properties on polyester fabrics. The remarkable degree of levelness and brightness after washing is indicative of good penetration and excellent affinity of these dyes for the polyester fabric.
Cite this paper: nullK. Sakoma, K. Bello and M. Yakubu, "Synthesis of Some Azo Disperse Dyes from 1-Substituted 2-Hydroxy-6-pyridone Derivatives and Their Colour Assessment on Polyester Fabric," Open Journal of Applied Sciences, Vol. 2 No. 1, 2012, pp. 54-59. doi: 10.4236/ojapps.2012.21006.

[1]   K. A. Bello, “Methine and Azomethine Dyes Derived from 2-Pyridone,” Dyes and Pigments, Vol. 28, No. 2, 1995, pp. 83-90. doi:10.1016/0143-7208(94)00061-6

[2]   K. A. Bello, C. M. O. A. Martins and I. K. Adamu, “Methine Dyes Formed by Condensation of Indane-1,3-dione and Cyanovinyl Analogues with Benzaldehydes,” Journal of Society of Dyers and Colourists, Vol. 110, No. 7, 1994, pp. 238-240. doi:10.1111/j.1478-4408.1994.tb01650.x

[3]   K. A. Bello, L. Chengs and J. Griffiths, “Near Infrared Absorbing Methine Dyes Based on Dicyanovinyl Derivatives of 1,3-Indandion,” Journal of Chemical Society, Perkin Transactions, Vol. 2, No. 6, 1987, pp. 815-818. doi:10.1039/p29870000815

[4]   N. Ertan and F. Eyduran, “The Synthesis of Some Hetarylazopyridone Dyes and Solvent Effects on Their Absorption Spectra,” Dyes and Pigments, Vol. 27, No. 4, 1995, pp. 313-320. doi:10.1016/0143-7208(94)00071-9

[5]   C. C. Chien and I. J. Wang, “Synthesis of Some Pyridone Azo Dyes from 1-Substituted 2-Hydroxy-6-pyridone Derivatives and Their Colour Assessment,” Dyes and Pigments, Vol. 15, No. 1, 1991, pp. 69-82. doi:10.1016/0143-7208(91)87008-B

[6]   K. J. Sakoma, “Synthesis of Azo Dyes Derived from Pyridone as Coupling Components and Their Application on Nylon and Polyester Fabrics,” Thesis, Ahmadu Bello University, Zaria, 2011.

[7]   H. R. Maradiya and V. S. Pattel, “Thiophene Based Mono- azo Disperse Dyes for Polyester Fabric,” Journal of the Serbian Society, Vol. 67, No. 1, 2002, pp. 17-25. doi:10.2298/JSC0201017M

[8]   N. Ertan and P. Gurkan, “Synthesis and Properties of Some Azo Pyridone Dyes and Their Cu(II) Complexes,” Dyes and Pigments, Vol. 33, No. 2, 1997, pp. 137-147. doi:10.1016/S0143-7208(96)00044-7

[9]   L. Cheng, X. Cheng, K. Gao and J. Griffiths, “Colour and Constitution of Azo Dyes Derived from 2-Thioalkyl-4,6- diamino Pyrimidines and 3-Cyano-1,4-dimethyl-6-hydro- xy-2-pyridone as Coupling Components,” Dyes and Pigments Vol. 7, No. 5, 1986, pp. 373-388. doi:10.1016/0143-7208(86)80005-5