MULTI-PLY LINER FOR USE IN CORRUGATED BOARD
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United States of America Patent
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Aug 8, 2024
app pub date -
May 13, 2022
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May 17, 2021
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Abstract
The present invention relates to a multi-ply liner for use in corrugated board, said multi-ply liner comprising: a first ply, and a second ply, wherein said first ply comprises at least 70 wt % unbleached kraft pulp and between 5-30 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said second ply comprises at least 50 wt % NSSC pulp and between 5-50 wt % unbleached kraft pulp based on dry weight.
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