| 发明名称 |
SECURITY ELEMENT |
| 摘要 |
The invention relates to thermochromic ink for intaglio printing. Said ink is characterised in that it comprises a microencapsulated three-component mixture consisting of at least one electron donor, at least one electron acceptor and at least one solvent. |
| 申请公布号 |
EP2004414(A1) |
申请公布日期 |
2008.12.24 |
| 申请号 |
EP20070723504 |
申请日期 |
2007.03.22 |
| 申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
MENGEL, CHRISTIOPH;LANGER, JOERG;WOERLEIN, EDITH |
| 分类号 |
B41M1/10;B42D15/00;C09D11/00 |
主分类号 |
B41M1/10 |
| 代理机构 |
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