Synthesis and application of temporarily solubilised azo disperse dyes containing β-sulphatoethylsulphonyl group

Jung Jin Lee, Won Jae Lee, Jae Hong Choi, Jae Pil Kim

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47 Scopus citations

Abstract

A series of temporarily solubilised azo disperse dyes containing β-sulphatoethylsulphonyl group in their structures were synthesised for dispersant-free dyeing of polyester. Diazo components having nitro or bromo group were prepared and coupled with corresponding coupling components to give 4-diethylamino-4′-(2-sulphatoethylsulphonyl) azobenzene dyes. The absorption maxima of the dyes were dependent upon the substituents in the diazo and coupling components and varied from 464 to 528 in DMF. Polyester fabric was successfully dyed with the synthesised dyes without using any dispersing agent. The dyes showed good build-up, leveling and fastness properties on polyester.

Original languageEnglish
Pages (from-to)75-81
Number of pages7
JournalDyes and Pigments
Volume65
Issue number1
DOIs
StatePublished - Apr 2005

Keywords

  • β-Sulphatoethylsulphonyl group
  • Absorption maxima
  • Dispersant-free dyeing
  • Polyester
  • Temporarily solubilised azo disperse dye

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