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The Study of Printed Mottle on Properties of Coated Paper and Ink Dispersion (I) - Analysis of printability test -  

Ha, Young-Baeck (Dept. of Paper Science & Engineering, College of Forest Sciences, Kangwon National University)
Lee, Yong-Kyu (Dept. of Paper Science & Engineering, College of Forest Sciences, Kangwon National University)
Kim, Chang-Keun (Changgang Institute of Paper Science and Technology, Kangwon National University)
Oh, Sung-Sang (Graphic Arts Media, Shin Gu College)
Lim, Jong-Hag (Daihan Ink Co. LTD)
Youn, Jong-Tae (Division of Image & Information, College of Engineering, Pukyong National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.38, no.4, 2006 , pp. 47-52 More about this Journal
Abstract
This study is about the effect from properties of coated paper and ink dispersion to the printed mottle. Ink receptivity would be expected that it is mainly effected by roughness of coated paper Because the transfer of ink can not be uniform with rough surface, it will cause the optical appearance such like printed mottle. And also it may be able to cause the printed mottle from uneven transfer of ink due to absorption property of based paper, depend on size degree, by using dampening in Off-set printing. Each different specific of surface and ink dispersion could cause printed mottle. Therefore this study was carried out by using densitometer and image analysis to show the interaction between properties of domestic coated paper and ink dispersion.
Keywords
printed mottle; properties of coated paper; size degree; roughness; ink dispersion; damping; transfer of ink; absorption; densitometer; image analysis;
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