| 摘要 |
The invention relates to a combination of a forgery-proof document (20), such as a ticket, and a stamping device (10) for checking such forgery-proof documents (20). The ticket has a first area (31) provided with a colorant having a pigment which reflects in the infrared region and which does not change the appearance of the shade, and a second area (32) provided with a colorant without a reflecting pigment. The shade of the colorant used for the second region (32) corresponds to the shade of the colorant used for the first region (31). The stamping device (10) has a unit (16, 116, 116') which emits a radiation in the infrared region, a detection and evaluation unit (17, 18, 117, 117', 118) for a radiation reflecting in the infrared region, and a display unit (19, 119). |
