| 摘要 |
The present invention relates to a method for printing a security item on a substrate (1) of which at least a part is made of a transparent material, whereby the method comprises following steps:
- printing a first image (4), which is visible or can be visualized, on one side of the transparent material;
- printing a second image (5), which is visible or can be visualized on the opposite side of the transparent material, wherein the first (4) and second image (5) at least partially overlap;
- printing a third image (6), which is visible or can be visualized in transmission on the zones of the transparent material that are not covered by the first (4) and/or second image (5). |
