Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Synthesis and Dyeing Properties of Red Disperse Dyes Derived from Diaminopyridines

디아미노피리딘아조계 Red 분산염료들의 합성과 염색성

  • Park Jong Ho (Department of Textile Engineering, NITRI, Konkuk University) ;
  • Koh Joonseok (Department of Textile Engineering, NITRI, Konkuk University) ;
  • Bae Jin Seok (Korea Dyeing Technology Center) ;
  • Kim Sung Dong (Department of Textile Engineering, NITRI, Konkuk University)
  • 박종호 (건국대학교 공과대학 차세대혁신기술연구원 섬유공학과) ;
  • 고준석 (건국대학교 공과대학 차세대혁신기술연구원 섬유공학과) ;
  • 배진석 (한국염색기술연구소 DTP 센터) ;
  • 김성동 (건국대학교 공과대학 차세대혁신기술연구원 섬유공학과)
  • Published : 2005.12.01
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Abstract

Disperse dyes derived from heterocyclic compounds such as phenylindole, pyridone, diaminopyridine, and carbazole have been known to exhibit high light fastness and bathochromic shift compared to the coursponding aminoazobenzene. The synthetic method to obtain diaminopyridine derivatives, which can be used as coupling components, was chlorination of pyridone with phosphorous oxychloride, followed by substitution with various primary amines. Four azo disperse dyes were synthesized by coupling four diaminopyridines with 2-cyano-4-nitroaniline as a diazo component. Structures of these dyes were confirmed by $^1H$ NMR spectroscopy. The wavelengths of maximum absorption of the synthesized disperse dyes were in the range of $517\~528nm$, and molar extinction coefficients were $45,700\~50,100$. The dyeability of four disperse dyes toward PET fiber was generally good. Wash and rubbing fastnesses were excellent, while light and dry heat fastness were good.

Keywords

References

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