| 摘要 |
The invention relates to a method, an arrangement and a solution for the marking of banknotes or securities (9, 17, 18) with a coating which is invisible to the naked eye under normal lighting. The coating, which can be executed in the form of a bar code, consists of a colourless polymer solution with a matt surface structure in the dry state, which solution is mixed with fluorescent substances, preferably consisting of colourless flakes, which can be caused to give off fluorescent light when they are illuminated with UV light. The invention also relates to an installation for the detection of such marking. |
