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Improvement of Water Resistant Properties of a Linerboard for Corrugated Fiberboard Box by Coating with Na-alginate  

Kim, Eun-Jung (Institute of Life Science and Resource, Department of Food Sci. & Biotech., Kyung Hee University)
Rhim, Jong-Whan (Department of Food Engineering, Mokpo National University)
Kim, Byung-Yong (Institute of Life Science and Resource, Department of Food Sci. & Biotech., Kyung Hee University)
Publication Information
Korean Journal of Food Science and Technology / v.38, no.6, 2006 , pp. 762-766 More about this Journal
Abstract
To improve water resistance of paperboard used to manufacture the corrugated boxes, effect of surface coating of the liner- board with Na-alginate was investigated by determining the optimum processing conditions such as a optimum alginate concentration for surface coating, plasticizer content, concentration of divalent cations their immersion times, For the surface coating of the liner-board, 2.5% Na-alginate solution was found to be the optimum concentration, and the concentration of glycerol used as plasticizer was effective when 35% alginate concentration was use was Used Immersion of the alginate coated paperboard for 3 min in a $CaCl_2$ solution improved the water resistance properties. As a divalent cation for the insolubilization of the alginate films, $Cu^{2+}$ was found to be as effective as $Ca^{2+}$. Among the platicizers tested, sorbitol was the most effective in reducing water vapor permeability and water solubility of alginate coated paperboard.
Keywords
linear-board; Na-alginate; divalent cations; plasticizer;
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Times Cited By KSCI : 1  (Citation Analysis)
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