Process for the production of paper
    90.
    发明授权
    Process for the production of paper 失效
    生产纸张的过程

    公开(公告)号:US4946557A

    公开(公告)日:1990-08-07

    申请号:US315349

    申请日:1989-02-24

    申请人: Per J. Svending

    发明人: Per J. Svending

    摘要: A process for the production of paper by forming and dewatering a suspension of cellulose containing fibers and optional fillers on a wire in the presence of a cationic silica based sol and a cationic polymeric retention agent. The cationic polymeric retention agent is cationic guar gum or a cationic synthetic polymer such as cationic polyacrylamide. The combination of cationic silica sol and cationic polymer retention agent gives improved retention of fines and fillers and eases drainage.

    摘要翻译: 一种通过在阳离子二氧化硅基溶胶和阳离子聚合物保留剂的存在下在含有纤维素的纤维和任选填料的悬浮液上形成和脱水来生产纸的方法。 阳离子聚合物保留剂是阳离子瓜尔胶或阳离子合成聚合物如阳离子聚丙烯酰胺。 阳离子硅溶胶和阳离子聚合物保留剂的组合提高了细粒和填料的保留性并缓解了排水。