Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effects of Coloration Method on the Optical Properties of a Polarizing Film

착색 방법 변화가 편광필름의 광학특성에 미치는 영향

  • Jang Jin-Ho (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Koo Gwang-Hoe (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Back Sang-Hyun (Film Research Institute, Kolon Co. Ltd.) ;
  • Park Sang-Bong (Film Research Institute, Kolon Co. Ltd.) ;
  • Park Il-Hyun (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Choi E-Joon (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
  • 장진호 (금오공과대학교 신소재시스템공학부) ;
  • 구광회 (금오공과대학교 신소재시스템공학부) ;
  • 백상현 ((주)코오롱 필름연구소) ;
  • 박상봉 ((주)코오롱 필름연구소) ;
  • 박일현 (금오공과대학교 신소재시스템공학부) ;
  • 최이준 (금오공과대학교 신소재시스템공학부)
  • Published : 2006.06.01
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Abstract

Four kinds of polarizing film were prepared by two coloration methods of dipping and dyeing using either iodine or dye as a dichroic colorant. The optical properties of the polarizing films were compared at various concentrations of dichroic colorants and draw ratios. While iodine of low substantivity to PVA film showed little dependence of colorant content on the coloration methods, in the dye-type polarizing film dyeing method caused higher surface and bulk colorant contents than dipping method due to higher substantivity of the dichroic direct dye. However surface dichroic colorants on the film exhibited higher effectiveness in terms of observed optical properties compared with bulk dichroic colorants in the PVA film. While dye-type polarizing film showed excellent resistance to heat and humidity compared to iodine-type, coloration method did not influence significantly the optical durability of dye-type polarizing film under hot and humid condition.

Keywords

References

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