| 发明名称 |
Method for production of coated paper with extreme whiteness |
| 摘要 |
Paper coated with a coating slip containing at least one optical brightener is produced by a process in which base paper or precoated paper is treated, before application of the coating slip containing optical brightener, with at least one substance which enhances the efficiency of optical brighteners.
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| 申请公布号 |
US7641765(B2) |
申请公布日期 |
2010.01.05 |
| 申请号 |
US20040486105 |
申请日期 |
2004.02.09 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
BLUM THIERRY;LINHART FRIEDRICH;FRENZEL STEPHAN |
| 分类号 |
D21H23/22;D21H19/12;D21H19/56;D21H19/80;D21H19/82;D21H21/30;D21H23/30;D21H23/76 |
主分类号 |
D21H23/22 |
| 代理机构 |
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代理人 |
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