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KMID : 1024420100140020106
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Food Engineering Progress
2010 Volume.14 No. 2 p.106 ~ p.111
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Effect of Corrugation Fluting on the Compressive Strength of Corrugated Fiberboard Box for Food Packaging
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Kim Cheong
Her Jae-Young
Lee Kwang-Geun
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Abstract
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In this study, we performed corrugation fluting experiments to examine the relationship between high-low corrugation of a corrugated medium and compressive strength of corrugated containers for food packaging. A low-grade corrugated medium was found to suffer from weak tensile resistance and to be prone to stealing, which tends to produce low corrugation. In contrast, a medium with a large corrugation deviation often caused slimming during fluting and produced irregular corrugations. Experiments of high-low corrugation distribution according to corrugated medium grades indicate that a high grade medium shows a smaller ratio of low corrugation. The thickness of corrugated fiberboard is weakly correlated to the basis weight of medium, yet positively correlated to the medium thickness (y=3.9732x+4.2712, R2=0.8142) and inversely proportional to the medium density (y=-3.1213x+6.8736, R2=0.9919). Compressive strength of a corrugated fiberboard box is low, if made of corrugated medium with large low corrugation distribution. Compressive strength showed 13% variation with respect to medium grades and 21% variation for various test samples. The corrugation fluting of a corrugated medium is related to physical properties such as basis thickness and density.
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KEYWORD
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food packaging, corrugated fiberboard, corrugated fiberboard box, high-Low corrugation, compressive strength
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