发明名称 |
SIZING OF PAPER |
摘要 |
The invention relates to the use of an aqueous sizing dispersion containing a cellulose-reactive sizing agent and a hydrophobically modified dispersing agent for sizing cellulosic fibres by addition of the sizing dispersion to a stock containing cellulosic fibres, and optional fillers, and dewatering the stock on a wire to obtain a web containing cellulosic fibres, wherein the stock has a cationic demand of at least 50 mu eq/litre stock filtrate. The invention further relates to an aqueous dispersion containing a cellulose-reactive sizing agent and an anionic hydrophobically modified cellulose-derivative, its preparation and use in the production of paper. The invention also relates to a substantially water-free composition containing a cellulose-reactive sizing agent and an anionic hydrophobically modified cellulose-derivative, its preparation and use in the preparation of an aqueous dispersion of cellulose-reactive sizing agent. |
申请公布号 |
WO9833982(A3) |
申请公布日期 |
1998.11.12 |
申请号 |
WO1998SE00191 |
申请日期 |
1998.02.03 |
申请人 |
AKZO NOBEL N.V.;EKA CHEMICALS AB;FROELICH, STEN;LINDGREN, ERIK;SIKKAR, REIN |
发明人 |
FROELICH, STEN;LINDGREN, ERIK;SIKKAR, REIN |
分类号 |
D21H17/25;D21H;D21H11/00;D21H11/22;D21H17/16;D21H17/17;D21H17/26;D21H21/16 |
主分类号 |
D21H17/25 |
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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