发明名称 |
Manufacturing paper and/or paperboard and analogs for packing industry, comprises adding fibrous suspension separately or in mixture, which is comprising three dry resistance agents |
摘要 |
Manufacturing a sheet (I) of paper and/or paperboard or analogs comprises adding at least three dry resistance agents, separately or in mixture, to a fibrous suspension by introduction in one or more points of injection, where the first agent (Ia) is a (co)polymer with a cationic charge density greater than 1 meq/g and an amino primary functional group, the second agent (Ib) is synthetic organic (co)polymer with a cationic charge density greater than 0.1 meq/g and the third agent (Ic) is (co)polymer with a anionic charge density greater than 0.1 meq/g. An independent claim is included for a sheet of paper and paperboard, which are obtained by the above process.
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申请公布号 |
FR2882373(A1) |
申请公布日期 |
2006.08.25 |
申请号 |
FR20050050514 |
申请日期 |
2005.02.24 |
申请人 |
SNF SAS SOCIETE PAR ACTIONS SIMPLIFIEE |
发明人 |
HUND RENE;JEHN RENDU CHRISTIAN;MORETTON FABRICE |
分类号 |
D21H21/18;C08F220/06;C08F220/60;D21H17/42;D21H17/44 |
主分类号 |
D21H21/18 |
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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