| 发明名称 |
Printing ink for safe marking on a data carrier |
| 摘要 |
The application relates to a printing ink with an IR-absorbent additive to be applied for protection of documents and for machine detection. It is proposed that graphite be used as the IR-absorbent additive.
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| 申请公布号 |
US6379779(B1) |
申请公布日期 |
2002.04.30 |
| 申请号 |
US19990319911 |
申请日期 |
1999.08.10 |
| 申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
MUERL GERHARD |
| 分类号 |
B41M3/14;B42D15/00;C09D11/02;(IPC1-7):B32B3/00 |
主分类号 |
B41M3/14 |
| 代理机构 |
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代理人 |
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