| 摘要 |
The present application aims to propose a solution for embedding invisible mark suitable for very large production volumes such as packaging.
This is achieved by a method for applying an invisible mark on a media (SP) based on a pattern, and comprising the following steps: determining an area to apply this mark, applying a transparent or semi-transparent substance (CT), on the media (SP), said substance being modulated with the active dots to form the pattern by modifying the quantity of the substance at each active dot. |
