Process for manufacturing board
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United States of America Patent
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Jan 27, 2009
Grant Date -
Aug 14, 2003
app pub date -
Dec 19, 2002
filing date -
Dec 19, 2001
priority date (Note) -
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Abstract
The invention relates to a process for manufacturing liquid packaging board, in which process a board pulp is treated with a percarboxylic acid by adding to the pulp percarboxylic acid in an amount of 0.5-5 kg/ton of dry pulp, indicated as a 100 percent percarboxylic acid, whereafter, or simultaneously with the percarboxylic acid treatment, sizing is carried out with a combination of a resin size and a neutral size, which is followed by board forming. The manufactured board has good resistance to liquid penetration.
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