公开(公告)号：EP0276200B1

公开(公告)日：1991-04-17

申请号：EP88850001.4

申请日：1988-01-07

Applicant: STFI

Inventor： Lindström, Tom ,  Hallgren, Hans ,  Hedborg, Fritz

IPC: D21H17/71 ,  D21H17/24 ,  D21H17/66

CPC classification number: D21H17/29 ,  D21H17/66 ,  D21H23/18

公开(公告)号：EP0276200A1

公开(公告)日：1988-07-27

申请号：EP88850001.4

申请日：1988-01-07

Applicant: STFI

Inventor： Lindström, Tom ,  Hallgren, Hans ,  Hedborg, Fritz

IPC: D21H17/71 ,  D21H17/24 ,  D21H17/66

CPC classification number: D21H17/29 ,  D21H17/66 ,  D21H23/18

Abstract: The present invention relates to a process for obtaining retention at the manufacture of paper, whereby one adds a cationic, high polymer polysaccharide at the preparation of a stock of paper pulp; that one adds an anionic alumi­nium compound, or a combination of an aluminium salt and an alkali or an acid to the formation in situ of such an anionic aluminium compound immediately prior to the head box, whereby pH immediately prior to the head box is kept at pH 7 to 8.

Abstract translation: 本发明涉及在制造纸时获得保留的方法，其中在制备纸浆的过程中加入阳离子高分子多糖; 在头盒前立即将这种阴离子铝化合物或铝盐与碱或酸的组合原位加入到这种阴离子铝化合物的原位，由此在头箱前立即保持pH pH 7〜8。