| 发明名称 |
COLORING PAPER |
| 摘要 |
The wet-end coloring of paper with pigments and fixers is carried out by a process in which the pigment and fixer are added simultaneously to the paper pulp to be colored, and the fixer used is a cationic fixer, in an amount of from 0.01 to 3% by weight, based on the dry paper pulp to be colored.
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| 申请公布号 |
US5131981(A) |
申请公布日期 |
1992.07.21 |
| 申请号 |
US19910711378 |
申请日期 |
1991.06.06 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HAHN, ERWIN;HENNING, GEORG;MIELKE, MANFRED;DEGEN, HANS-JUERGEN;PFOHL, SIGBERG |
| 分类号 |
D21H17/34;D21H17/37;D21H17/49;D21H17/55;D21H17/56;D21H21/28 |
主分类号 |
D21H17/34 |
| 代理机构 |
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