| 摘要 |
The invention relates to a card, especially a credit card, identity card, ba nk card or the like that comprises a plurality of interlaminated layers (10, 11 ) between which a security element (2) is interposed that has a relief structure, especially holographic diffraction structures. The materials are chosen in such a manner that the softening temperature of the layer (21) of the security element (2) that bears the relief structure is higher than the softening temperature of those layers of the card between which the security element (2) is interlaminated, thereby making it possible to produce the laminated multi-layer card by conventional lamination methods and preventing the relief structure from being considerably impaired by the process pressur es and temperatures. The invention further relates to special combinations of materials and especially to suitable materials for the layer (21) bearing th e relief structure (2). |
