发明名称 |
PAPERMAKING PROCESS |
摘要 |
In the production of paper or pulp sheets from a paper stock, a binder is added which comprises cationic and anionic components to improve the paper characteristics and the stock characteristics, such that increased retention and a more readily dewatered stock are obtained. The anionic component consists of colloidal anionic particles having at least one surface layer of aluminum silicate or aluminum-modified silicic acid, such that the surface groups of the particles contain silicium and aluminum atoms in a ratio of from 9.5:0.5 to 7.5:2.5. The cationic component consists of cationic carbohydrate having a degree of substitution of 0.01-1.0. |
申请公布号 |
AU4498585(A) |
申请公布日期 |
1986.01.10 |
申请号 |
AU19850044985 |
申请日期 |
1985.06.06 |
申请人 |
EKA AB |
发明人 |
ANDERSSON, KJELL RUNE;LARSSON, BERNT;THORESSON, HANS-OLOF;LARSSON, BO VALDEMAR |
分类号 |
D21H21/16;D21H17/21;D21H17/24;D21H17/28;D21H17/29;D21H17/32;D21H17/63;D21H17/67;D21H17/68;D21H21/10;D21H23/14 |
主分类号 |
D21H21/16 |
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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