发明名称 |
IMPROVED PROCESS FOR MANUFACTURING BOARD |
摘要 |
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 per cent 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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申请公布号 |
CA2414637(C) |
申请公布日期 |
2012.03.13 |
申请号 |
CA20022414637 |
申请日期 |
2002.12.18 |
申请人 |
KEMIRA CHEMICALS OY |
发明人 |
PAREN, AARTO;JAKARA, JUKKA;JUPPO, ARI;STRENGELL, REETTA |
分类号 |
D21H17/14;D21H17/17;D21H17/62;D21H21/16;D21H27/10 |
主分类号 |
D21H17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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