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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Effect of Drying Condition of High Solid Coating on the Coated Paper Properties

고농도 도공의 건조조건이 도공지의 품질에 미치는 영향

  • Yoo, Sung-Jong (Artone Paper MFG. Co. LTD) ;
  • Cho, Byoung-Uk (Dept. of Paper Science & Engineering, College of Forest and Environment Science, Kangwon National University) ;
  • Lee, Yong-Kyu (Dept. of Paper Science & Engineering, College of Forest and Environment Science, Kangwon National University)
  • 유성종 (아트원제지주식회사) ;
  • 조병욱 (강원대학교 산림환경과학대학 제지공학과) ;
  • 이용규 (강원대학교 산림환경과학대학 제지공학과)
  • Received : 2010.02.27
  • Accepted : 2010.03.14
  • Published : 2010.03.30
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Abstract

Effects of drying condition (IR radiation) on the optical properties and the printability of coated paper were elucidated at various latex sizes and low and high coating color concentrations. It was found that the smaller latex provided better rheology and higher dry and wet pick strength than the larger one. The high solids coating resulted in higher paper gloss and smaller roughness than the low solids coating, even though the clay addition was reduced by 20 parts in the high solids coating. Increasing IR radiation prohibited binder migration into the base paper. Thus it improved binder distribution and decreased pores in the coated layer, resulting in the increased dry and wet pick strength and the improved printing gloss. On the other hand, the color trapping and ink set-off was impaired with increasing IR radiation. Print mottle index passed through a maximum with increasing IR radiation.

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References

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