| 发明名称 |
Method of whitening lignin-containing pulp during manufacture |
| 摘要 |
A process to increase the whiteness of a lignin-containing pulp is disclosed which comprises adding to an aqueous slurry comprising a lignin-containing pulp, during pulp manufacture, a fluorescent whitening agent and optionally a chelating agent.
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| 申请公布号 |
EP0899373(A1) |
申请公布日期 |
1999.03.03 |
| 申请号 |
EP19980810809 |
申请日期 |
1998.08.19 |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
NELSON, RANDALL BRUCE;JOKINEN, OLLI JUHANI;ROHRINGER, PETER |
| 分类号 |
D21C9/00;D21C9/10;D21H21/30;(IPC1-7):D21C9/00 |
主分类号 |
D21C9/00 |
| 代理机构 |
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