Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Synthesis of Super Hydrophobic Disazo Red Dyes using Alkylanilines as Diazo Components

알킬아닐린을 디아조성분으로 활용한 디스아조계 초소수성 적색염료의 합성

  • Kim, Taekyeong (Department of Textile System Engineering, Kyungpook National University) ;
  • Ryu, Myeonghwa (Department of Textile System Engineering, Kyungpook National University) ;
  • Jang, Youngjae (Department of Textile System Engineering, Kyungpook National University)
  • 김태경 (경북대학교 섬유시스템공학과) ;
  • 류명화 (경북대학교 섬유시스템공학과) ;
  • 장영재 (경북대학교 섬유시스템공학과)
  • Received : 2015.02.06
  • Accepted : 2015.03.09
  • Published : 2015.03.27
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Abstract

Novel super hydrophobic disazo red dyes were synthesized to improve light fastness of the primary monoazo red dye of previous study on polyolefin fibers such as polypropylene and ultra high molecular weight polyethylene fibers. 4-Alkylanilines were diazotized and then coupled to 2,5-dimethylaniline to produce dye intermediates which were then further used to synthesize final disazo red dyes by diazoization and coupling to ${\beta}$-naphthol. Considering both affinity of the dyes toward both polyolefin fibers and color fastnesses, the decyl-substituted dye was determined as the optimum dye. The decyl-substituted disazo red dye exhibited good dyeability on both polyolefin fibes and almost the same color values as the previous primary monoazo red dye. Light fastness on ultra high molecular weight polyethylene fibers was improved up to rating 3~4 compared to rating 2~3 of the previous primary monoazo red dye.

Keywords

References

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