Effect of Talc on Gravure Printability(II) -Effect of talc on binder reduction for matte grade production-

탈크가 그라비어 인쇄적성에 미치는 영향 제2보 - 탈크가 바인더 절감에 미치는 영향 -

  • Cheong, Hee-Seok (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Kim, Chang-Keun (Changgang Institute of Paper Science and Technology, Kangwon National University) ;
  • Lee, Yong-Kyu (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
  • 정희석 (강원대학교 산림환경과학대학 제지공학과) ;
  • 김창근 (강원대학교 창강 제지 기술 연구소) ;
  • 이용규 (강원대학교 산림환경과학대학 제지공학과)
  • Published : 2009.09.30

Abstract

According to a previous study, talc as a coating pigment can improve the viscosity and the water retention of coating color, the compressibility of coating layer, and hence gravure printability. Talc is also well known for its larger particle size than other pigments, which implies that less binder may be need due to its smaller specific surface area. This study investigated the possibility of reducing binder content for matte grade paper. Coating color was prepared with the Cotalc-2000, which showed the best properties in the previous study. The binder content was varied and the effect of binder content on the physical properties of coated paper and the gravure printability was investigated. It was shown that binder content could be reduced when talc was used as a coating pigment. The reduction in binder content did not influence gloss, roughness and the print density of coated paper but showed improvement in paper porosity, compressibility and missing dot.

Keywords

References

  1. Centa, M. S., Sharma, S. "A Novel Talc Pigment for Paper Coatings", 2005 TAPPI Coating Conference, 2005
  2. Ph. Maillard, M. Likitalo, W. Bauer and E. Zeyringer, "Development of a talc pigment giving optimum printability of matt coated offset grades", 19th PTS Coating Symposium, 1999
  3. Chang Keun Kim, Yong Kye Lee, "Development of talc for paper coating", The 31st International Seminar on Pulping and Papermaking Technology, 2005
  4. W. Larry., "Pigments for Coated Papers and some Interrelationships with Coating Binders", 1992 Coating Binder Short Course, TAPPI Press, Atlanta, p. 15
  5. Prakash B. Malla, Robert E. Starr, Timothy J. Werkin, Siva Devisetti, "The effects of pigment type and pore structure on optical properties and rotogravure printability of LWC paper", 2000 TAPPI Coating Conference and Trade Fair