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http://dx.doi.org/10.7584/ktappi.2013.45.6.001

Use of Calcium Carbonate for Improving Solid Content of KOCC Wet Web  

Hwang, In-Young (Dept. of Bio-based Materials, Chungnam National University)
Ji, Sung-Gil (Dept. of Bio-based Materials, Chungnam National University)
Seo, Yung-Bum (Dept. of Bio-based Materials, Chungnam National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.45, no.6, 2013 , pp. 1-9 More about this Journal
Abstract
For the manufacture of linerboard with 100% KOCC, we tried to increase the solid content of wet web by employing GCC (grounded calcium carbonate) in the fiber furnish to save drying energy. Three different diameters of GCC, namely, 5, 10, and $35{\mu}m$, were used. To complement the strength loss by the addition of GCC, cationic starch and refining treatment were tried. It was found that the addition of $10-35{\mu}m$ dia. GCC to KOCC for $180g/m^2$ basis weight sheets increased the solid content of the furnish about 1-1.5% with better bulk and drainage properties. The loss of strength properties were compensated by the application of cationic starch and/or refining process to the KOCC furnish. The dia. of GCC of $35{\mu}m$ was, however, too large to make smooth surface of the sample sheet. So, the optimization process was required before implementing the results to the mill by selecting proper diameter and shape of the calcium carbonate.
Keywords
OCC; wet pressing; calcium carbonate; solid content; paper properties;
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Times Cited By KSCI : 10  (Citation Analysis)
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