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 Ultra Fine Precipitated Calcium Carbonate on the Quality of Coated Paper

초미립 경질탄산칼슘이 도공지 품질에 미치는 영향

  • Kim, Sun-Kyung (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Won, Jong-Myoung (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Lee, Yong-Kyu (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
  • 김선경 (강원대학교 산림환경과학대학 제지공학과) ;
  • 원종명 (강원대학교 산림환경과학대학 제지공학과) ;
  • 이용규 (강원대학교 산림환경과학대학 제지공학과)
  • Received : 2012.08.06
  • Accepted : 2012.08.20
  • Published : 2012.08.30
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Abstract

This study was carried out in order to evaluate the effects of ultra fine precipitated calcium carbonate (UFPCC) on properties of coating color, coated paper and off-set printability. It was found that blending of UFPCC increased the low-shear viscosity and water retention of coating color. The smaller the particle size, the more significant the effect of it. When the blending ratio of UFPCC was increased, brightness, whiteness and opacity of the coated paper were improved, while paper gloss was decreased due to the increase in roughness. When the UFPCC with the average particle size of $0.12{\mu}m$ was used, the ink receptivity during off-set printing was improved while print gloss was maintained or a little decreased. It was also observed that the dry-pick and wet-pick strength of coated paper were improved by the use of UFPCC. In conclusion, it is possible to produce the low gloss matt paper with the use of UFPCC since it could improve the optical properties and ink receptivity of coated paper.

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References

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