Sizing of paper,申请号SE19970004930-传众专利搜索

Sizing of paper

申请公布号：SE9704930(D0)

申请号：SE19970004930

申请日期：1997.12.30

申请公布日期：1997.12.30

申请人：

AKZO NOBEL NV;EKA CHEMICALS AB

发明人：STEN *FROELICH;ERIK *LINDGREN;REIN *SIKKAR

分类号：D21H17/25;D21H;D21H11/00;D21H11/22;D21H17/16;D21H17/17;D21H17/26;D21H21/16;(IPC1-7):D21H/

主分类号：D21H17/25

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.