Journal of the Korean Graphic Arts Communication Society (한국인쇄학회지)
- Volume 26 Issue 1
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- Pages.87-96
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- 2008
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- 1226-1149(pISSN)
Ink Transfer Problem on a Cooled Paper
냉각된 종이의 잉크수리 문제에 관한 연구
- Jeon, Sung-Jai (R&D Center, Hansol Paper Co.) ;
- Hong, Gi-Ahn (Division of Image & Information, College of Engineering, Pukyong National University) ;
- Youn, Jong-Tae (Division of Image & Information, College of Engineering, Pukyong National University)
- Published : 2008.03.01
Abstract
Paper stock could be situated in a cooled environment seasonally and/or regionally otherwise it is stored in a controlled warehouse. In this paper, printing problems on a cooled paper are investigated and characterized in terms of paper properties. For this purpose, various kinds of sample are cooled down under a specially designed freezing device and printed for observing their printability. Causes for poor ink transfer on a cooled paper are suggested due to condensation, surface inactivity, and rheological change in ink film. Paperboards with higher amount of binder, thick and/or multi-coated layers are more vulnerable to poor ink trap. Severe drying of wet coating could cause a similar result as that of the coatings with higher binder formulation. It is shown that more absorptive porous structure is desirable for better ink receptivity in a cooled status. Printing on a dampened surface may be an indicator for ink transferability on a cooled paper. Finally, desirable directions for papermaker and printshop are suggested.
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