한국염색가공학회지 (Textile Coloration and Finishing)

  • 제20권2호
  • /
  • Pages.38-46
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  • 2008
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  • 1229-0033(pISSN)
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  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
권호 표지
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광그라프트로 양이온화된 PET 직물의 산성 염료에 대한 염색성

Dyeability of Cationized PET Fabrics to Acid Dyes via Photografting

  • 손정아 (금오공과대학교 신소재시스템공학부 나노바이오텍스타일공학과) ;
  • 장진호 (금오공과대학교 신소재시스템공학부 나노바이오텍스타일공학과)
  • Son, Jung-A (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Jang, Jin-Ho (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
  • 발행 : 2008.04.27
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초록

PET fabrics were cationized via photografting under continuous UV irradiation with a cationic monomer. The grafted PET was dyed with three acid dyes. Effect of dye concentration, dyeing time, temperature and pH on acidic dyeing of the cationized PET fabrics was assessed to find optimal dyeing condition. The cationized fabrics was successfully dyed at $75^{\circ}C$ under pH 5.5. However the dyeing sites of the grafted fabrics were nearly occupied above 5%owf dye concentration and the rapid exhaustion of the anionic dyes was observed. The dyeability of the cationized PET fabrics was increased proportionally with increasing percent grafting because of the introduction of ionic attraction between quaternary ammonium groups and acid dyes. Lower dyeability both at alkaline and pH 3 condition attributed to negative zeta potentials of the grafted fabrics and the reduced charge of the acid dyes respectively.

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참고문헌

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