| 发明名称 |
A method for optically brightening paper |
| 摘要 |
A simplified method for the optical brightening of paper either in the pulp mass, the size or metering press or by coating by the use of a formulation of an optical brightening agent together with a swellable layered silicate. |
| 申请公布号 |
ZA9808419(B) |
申请公布日期 |
1999.03.16 |
| 申请号 |
ZA19980008419 |
申请日期 |
1998.09.15 |
| 申请人 |
CIBA SPECIALITY CHEMICALS HOLDING INC. |
发明人 |
THOMAS ENGELHARDT;PETER ROHRINGER |
| 分类号 |
D21H17/68;D21H21/30 |
主分类号 |
D21H17/68 |
| 代理机构 |
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