Carrier for applying secrecy data and data carriers with applied data requiring secrecy

摘要

The present invention relates to data carriers with applied confidential data (3), comprising: a substrate (1) and data (3) applied to the substrate (1), the data (3) requiring secrecy being formed from a chromogenic ink which is transparent to an external physical or chemical action or whose color is identical to the color of the substrate (1) from an external physical or chemical action, and which is irreversibly non-transparent after the external physical or chemical action or of Coloring of the substrate (1) is irreversibly different after the external physical or chemical action. The present invention further relates to a carrier for applying data requiring secrecy (3), comprising: a substrate (1) and a substrate (2A) applied to the substrate (1) of an irregular array of characters, the characters being chromogenic Printing ink are formed, which irreversibly changes their color in external physical or chemical action. The present invention further relates to a data carrier based on the aforementioned carrier.