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Synthesis of Azo based Disperse Dyes for Dyeing Polyester Fiber in Supercritical Carbon Dioxide

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2019, 31(3), pp.135-146
  • DOI : 10.5764/TCF.2019.31.3.135
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : September 3, 2019
  • Accepted : September 16, 2019
  • Published : September 27, 2019

Seung-Rim Shin 1 Kyoung-Lyong An 1 Sunhye Lee 1 Seung Eun Lee 1 Eunhee Ko 2 Changil Kim 3 Kun Jun 1

1한국화학연구원
2한국섬유소재연구원
3㈜아크로마코리아

Accredited

ABSTRACT

A series of azo based disperse dyes were synthesized and applied to polyester( PET) fiber in supercritical carbon dioxide(ScCO2). Various aniline derivatives were used as diazo component and coupled with glycine ethylester or carbonic acid ethylester derivatives to give azo based disperse dyes. Depending on the various diazo substituents, absorption maxima varied from 415 to 529nm in acetone. Dyeing in ScCO2 was carried out at 120℃ and 250bar pressure for 2hrs. with 0.5% o.w.f. of dye concentration. Dyed PET fiber had excellent brightness and good light, washing and perspiration(acid/alkali) fastness properties.

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