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2019 Vol.51, Issue 1 Preview Page
Application of CNC as a Coating Additive

도공액 첨가제로서 CNC의 적용 가능성

Seung-Yeop Yang
,
Kyoung-Mo Jeong
,
Jong-Myoung Won
,
Yong-Kyu Lee†
양승엽
,
정경모
,
원종명
,
이용규 †
Department of Paper Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University, Chuncheon, 24341
강원대학교 산림환경과학대학 제지공학과
†Corresponding author: E-Mail: yklee@kangwon.ac.kr
28 February 2019. pp. 114-120
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Abstract

In the field of papermaking, there are many studies on nano-cellulose with new materials. Nano-cellulose refers to a material made of cellulose, which is the most abundant nature organic polymer in nature, through mechanical, chemical, and biological treatments. In this study CNC (cellulose nanocrystal) prepared by chemical hydrolysis was added to the coating color and its performance was compared with CMC, and the physical properties of the coating color and coated paper were measured. The addition of CNC improved water retention and thickness of the coated paper, whereas paper gloss was decreased. We attributed this to uneven shrinkage during drying due to high water retention. Another positive results showed that the surface pick strength and printing gloss were improved with an increase of CNC dosage. However, the pick strength decreased more than CMC alone. Therefore, when applied to coating color, preliminary test is necessary to determine the appropriate amount of CNC addition according to the demand characteristics.

Keywords
Cellulose
nanocellulose
cellulose nanocrystal
coating
coated paper
printability
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 51
  • No :1
  • Pages :114-120
  • Received Date : 2019-01-24
  • Revised Date : 2019-02-21
  • Accepted Date : 2019-02-22
  • DOI :https://doi.org/10.7584/JKTAPPI.2019.02.51.1.114
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