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Studies on Relations between High Solid Coating and Quality Changes(II) - Effect of high solid coating on coated paper properties -  

Lee, Yong-Kyu (Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University)
Yoo, Sung-Jong (EN paper Co. LTD.)
Cho, Byoung-Uk (Dept. of Paper Science & Engineering, College of Forest and Environtal Sciences, Kangwon National University)
Kim, Yong-Sik (EN paper Co. LTD.)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.39, no.3, 2007 , pp. 52-59 More about this Journal
Abstract
This paper confirms that high solid coating can increase coating speed and reduce drying cost. Low solid coating color with the synthetic thickener and high solid coating color with the rheology modifier and with higher ratio of GCC were prepared. Coated paper was then produced with an industrial coater, varying coating speed and dryer temperature in order to keep the moisture content of the coated paper constant. Coating color concentration was able to be increased from 66% to 69% and from 68% to 71% without an adverse effect on coating color rheology. With a help of the rheology modifier, the increased ratio of GCC in high solid coating did not show harmful effects on the coated paper quality.
Keywords
rheology modifier; high solid coating; coating speed up; drying cost saving;
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