发明名称 |
Förfarande för ökning av fyllmedelsretention hos cellulosafiberark |
摘要 |
A method for increasing filler retention of cellulosic fiber sheets is disclosed. In the method, cellulosic fibers with increased anionic sites are treated with either positively charged filler particles and/or amphoteric filler particles or a cationic retention aid and negatively charged filler particles and/or amphoteric filler particles. Cellulosic fiber sheets with retained filler particles are also disclosed. |
申请公布号 |
SE523746(C2) |
申请公布日期 |
2004.05.11 |
申请号 |
SE20010003016 |
申请日期 |
2001.09.12 |
申请人 |
WEYERHAEUSER CO |
发明人 |
RICHARD A JEWELL;STEVEN J WHITE;AMAR N NEOGI |
分类号 |
D21H21/10;D21H11/20;D21H13/04;D21H17/29;D21H17/37;D21H17/45;D21H17/55;D21H17/67;D21H17/68;D21H23/76;(IPC1-7):D21H21/10 |
主分类号 |
D21H21/10 |
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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