发明名称 Laminated multi-layer card with an inlaid securityelement in the form of relief structures.
摘要 A card, in particular credit card, identity card, bank card or the like is proposed that includes a plurality of laminated layers between which a security element with a relief structure, in particular holographic diffraction structures, is embedded. The materials are selected so that the softening temperature of the security element layer having the relief structure has a higher softening temperature than the card layers between which the security element is laminated. This permits the multilayer laminated card to be produced by conventional laminating methods without appreciably impairing the relief structure by the pressures and temperatures thereby occurring. Special combinations of materials and in particular suitable materials for the layer having the relief structure are proposed.
申请公布号 HK1052672(A1) 申请公布日期 2005.06.10
申请号 HK20030104962 申请日期 2003.07.09
申请人 GIESECKE & DEVRIENT GMBH. 发明人 MARIO KELLER;GUNTER ENDRES;MANFRED ENGL
分类号 B42D25/00;G03H1/18 主分类号 B42D25/00
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