发明名称 A PROCESS FOR THE PRODUCTION OF PAPER
摘要 A process for the production of paper by forming and dewatering a suspension of cellulose containing fibres, and optional fillers, on a wire. The forming and dewatering is carried out in the presence of a combination of an aluminum compound, a cationic retention agent and a polymeric silicic acid having a high specific surface area. The combination of substances improves dewatering and retention of fines and fillers.
申请公布号 ZA8903871(B) 申请公布日期 1990.02.28
申请号 ZA19890003871 申请日期 1989.05.23
申请人 EKA NOBEL AB. 发明人 HANS ERIK JOHANSSON
分类号 D21H17/33;D21H17/28;D21H17/29;D21H17/37;D21H17/44;D21H17/58;D21H17/59;D21H17/63;D21H17/65;D21H17/66;D21H17/67;D21H17/68;D21H21/10;D21H21/20;D21H23/18 主分类号 D21H17/33
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