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Evaluation of Folding Properties of Paperboard with Folding Angle and Rate  

Youn, Hye-Jung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Chin, Seong-Min (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Ryu, Jae-Ho (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Kwon, Hyun-Seung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.39, no.3, 2007 , pp. 30-35 More about this Journal
Abstract
Folding performance is very important in box manufacturing process using paperboard. To evaluate the folding performance of various paperboards, we measured the folding moment and folding behavior at the different folding angle and rate conditions. When linerboard with grammage of $300\;g/m^2$ was folded up to $90^{\circ}$, the compression break and delamination of sheet were observed. The maximum folding moment was little affected by folding angle, but it was increased logarithmically with folding rate. And the effect of paperboard thickness was significant. The maximum folding moment of MD sample was higher than one of CD sample by 40%.
Keywords
paperboard; folding; folding moment; compression break; delamination; creasability;
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