Journal of the Korean Graphic Arts Communication Society (한국인쇄학회지)

The Korean Graphic Arts Communication Society (한국인쇄학회)
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The Effects of the Heat-set web Ink Emulsification on Printability

Heat-set 윤전 잉크의 유화가 인쇄 적성에 미치는 영향

  • 하영백 (신구대학 그래픽아츠미디어과) ;
  • 최재혁 (신구대학 그래픽아츠미디어과) ;
  • 이원재 (동양잉크 기술연구소) ;
  • 오성상 (신구대학 그래픽아츠미디어과)
  • Received : 2010.10.29
  • Accepted : 2010.11.19
  • Published : 2010.12.03
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Abstract

Ever since the introduction of offset lithography, an operator have looked for ways to improve the process by reducing need for dampening solution. Lithography like off-set printing is processed using the repellent properties between water and oil, so all inks for lithography printing must work with dampening solution. The dampening solution may cause the emulsification of ink by the printing pressure in the printing nip. Emulsified ink changed viscosity, tack and causes problems such as bad transfer, uniform density and printed mottle. For a high quality web printing, we studied the effect of emulsified heat-set web inks on the printability, such as amount of ink transfer, printed density and uniformity. For this study, we were carried out by using IGT printability tester C1. For determination of ink properties using the spread meter and Thwing Albert Ink-o-meter, and using the densitometer and image analysis for printed quality determination. The experimental results of this study, we look forward to can be used as the basis for improve of the web print quality.

Keywords

References

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