| 摘要 |
<p>According to the invention, in order to secure an information item (4) hidden on an object (2) by a scratch field (3), intermediate layers between the information item (4) and the object (2) are provided with transversal recesses (10, 11) which form the spatial structure thereof. Said recesses (10, 11) are arrangeable on at least one layer (9) in the information item (4) area and/or on at least two layers in an area which surrounds said information item (4) and to which the information item (4) is not applied. In the first case, the parts of the information item (4) are printed on several layers (8, 9) and are disclosable by removing a layer. In the second case, a scalpel is guided to the lower layers devoid of information (4) if they are improperly lifted. <I/></p> |
