Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Influence of the Variation of the Coating Color Composition and Characteristics of Inks on the Printability of the Coated Paper

도공액 조성변화와 잉크 물성변화가 인쇄품질에 미치는 영향

  • Koo, Chul-Whoi (Graphic Arts Information Engineering, College of Engineering, Pukyong National University) ;
  • Ha, Young Baeck (Graphic Arts Information Engineering, College of Engineering, Pukyong National University)
  • 구철회 (부경대학교 공과대학 인쇄정보공학과) ;
  • 하영백 (부경대학교 공과대학 인쇄정보공학과)
  • Received : 2014.07.30
  • Accepted : 2014.10.03
  • Published : 2014.10.30
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Abstract

In this study, the influence of the physical properties of ink such as ink dispersity and emulsified amount on the printability of a coated paper was investigated with seven kinds of cyan inks. In addition, two kinds of coating formulations were tested to evaluate the effect of coating structure on the coated paper printability. It was found that the cyan ink with $2{\mu}m$ pigment size had the best dispersibility and hence the ink showed a best ink density on the two kinds of coated papers. When the emulsified ink A with IPA 20 wt% had a lower viscosity than emulsified ink B with IPA 10 wt%, the emulsified ink A showed relatively high value of the ink transfer rate in comparison with emulsified ink B. Despite the high value of ink transfer rate, the coated paper did not show a good printability because those inks with low viscosity due to a strong emulsification were easy to make print mottle on the coated paper.

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References

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