| 发明名称 |
Water-soluble sulphur dyes, their preparation and use |
| 摘要 |
The black water-soluble sulphur dyes of the formula <IMAGE> in which, for example, F is the dye chromophore of C.I. Leuco Sulphur Black 1, R1 if hydrogen, alkyl, M(+) is an alkali metal cation and n is such a large number that the dye contains 5 to 20% by weight of COO(-) groups are, inter alia, outstandingly suitable for producing recording fluids.
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| 申请公布号 |
US5383961(A) |
申请公布日期 |
1995.01.24 |
| 申请号 |
US19930128641 |
申请日期 |
1993.09.30 |
| 申请人 |
CASSELLA AG |
发明人 |
BAUER, WOLFGANG;NAGL, GERT;STECKELBERG, WILLI;RITTER, JOSEF;MAUELSHAGEN, WILHELM |
| 分类号 |
B41M5/00;C09B49/00;C09B67/30;C09B69/04;C09D11/00;C09D11/16;D06P5/00;(IPC1-7):C09D11/02 |
主分类号 |
B41M5/00 |
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