Light weight linerboard for corrugated board
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United States of America
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Feb 25, 2025
Grant Date -
Jan 19, 2023
app pub date -
Dec 11, 2020
filing date -
Dec 11, 2020
priority date (Note) -
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Abstract
The invention relates to a method to produce a linerboard exhibiting a high bending resistance and a high compression strength, which in turn provides high resistance to interflute buckling and sagging in a thereof formed corrugated board. This is achieved by the inventive combination of an optimized fiber refining level of the furnish in each layer of the linerboard, the separate formation of the top layer and the use of a multi-layer headbox to form the two-layered ply. In addition, the linerboard made according to the invention provides good printing properties in a thereof produced corrugated board, especially in flexographic printing, without the fluting structure being negatively affected.
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