发明名称 |
LAYER-TYPE VALUE DOCUMENT COMPRISING AN INK MIXTURE IN ONE LAYER |
摘要 |
The invention relates to a value document (10), particularly a banknote, comprising a sequence of layers into which visually and/or mechanically recognizable markings are introduced in the form of patterns, letters, numbers, or images under the effect of laser radiation. According to the invention, the sequence of layers encompasses a marking layer (22) that is composed of an ink mixture (24, 26) comprising a component (26) absorbing the laser radiation and a component (24) which is transparent to the laser radiation. The markings are visually and/or mechanically recognizable as a result of an irreversible change in the optical characteristics of the ink mixture (24, 26), said irreversible change being caused by the laser radiation. |
申请公布号 |
WO2005108110(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
WO2005EP03577 |
申请日期 |
2005.04.05 |
申请人 |
GIESECKE & DEVRIENT GMBH;DEPTA, GEORG;BALDUS, CHRISTOF;MAYER, KARLHEINZ;SCHIFFMANN, PETER |
发明人 |
DEPTA, GEORG;BALDUS, CHRISTOF;MAYER, KARLHEINZ;SCHIFFMANN, PETER |
分类号 |
B42D15/00;B42D15/10 |
主分类号 |
B42D15/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|