| 摘要 |
<p>The invention concerns a material (1) consisting of at least first (2) and second (3) sheets, comprising each two opposite surfaces (21, 22, 31, 32),, called front surfaces (21, 31) and rear surfaces (22, 32), at least one of said surfaces (21, 31) being designed to bear legible printed data (4), consisting for example of a text (4). Said material is characterized in that additionally to the printed data (4), at least one of said front surfaces (21, 31) bears legible data (5) which, different from said printed data (4), are presented in embossed form (51), which appear to have been superimposed on the legible printed data (4).</p> |
