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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Application Technology of Environmental-friendly Starch-based Biobinder and Synthesized Binder in order to Substitute SB Latex for Paper Coating (1) - Application of Substitute Binder for Pre-coating Layer -

SB latex 대체용 친환경 전분계 바이오바인더 및 합성바인더의 적용 기술 개발 (제1보) - 대체용 바인더의 Pre-coating 적용 -

  • Lee, Yong Kyu (Dept. of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Kim, Sun-Goo (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) ;
  • Kim, Young-Hun (Kleannara)
  • 이용규 (강원대학교 산림환경과학대학 제지공학과) ;
  • 김선구 (강원대학교 산림환경과학대학 제지공학과) ;
  • 원종명 (강원대학교 산림환경과학대학 제지공학과) ;
  • 김영훈 (깨끗한나라 주식회사)
  • Received : 2015.10.05
  • Accepted : 2015.10.23
  • Published : 2015.10.30
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Abstract

This study was carried out to evaluate whether EVAc, acryl latex and biobinder could substitute the part of SB latex for pre-coating color formula or not. Different coating colors prepared through the substitution of 30% SB latex with EVAc, acryl latex, and biobinder were applied for pre-coating layer. 100% SB latex is used as a binder for top coating color. The optical properties, gloss, roughness, stiffness, dry- and wet-pick strength were measured. There were no significant differences in the brightness, whiteness, opacity, roughness, ink set-off and gloss of paper coated with 5 different coating colors. However the stiffness, dry- and wet-pick strength were somewhat lower than those of conventional coating color which 100% SB latex was used as a binder. Although the part of SB latex could be substituted with EVAc, acryl latex and biobinder without sacrificing the qualities of coated paper. Further researches on the improvement of stiffness, dry- and wet-pick strength, and the optimization of rheology of coating color in order to improve the qualities of coated paper are strongly recommended.

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References

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