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Corrugated cardboard core material

2021-01-07 11:10:08

The larger the corrugated board pit diameter, the stronger its rigidity. The toughness of the cardboard comes from the core paper layer, without the need for thick and hard filler. This can reduce the weight of the cardboard and its cost. The core paper can be made of semi-chemical pulp (this kind of pulp can provide the best paper strength) and recycled paper. The latter is preferred by Hong Kong manufacturers due to its low cost. Although the paper is not as strong as the former, it can be improved by adding starch to the paper mill.

The pit pattern occupies a certain space in the corrugated cardboard, and its role is also very important. Through it, it can withstand flat pressure, side pressure and other various irregular pressures.

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