发明名称 Method for producing laser-writable data carriers and data carrier produced according to this method
摘要 The invention relates to a method for producing a data carrier having a laser-markable layer and a transparent optically variable layer overlapping therewith at least in certain areas, wherein visually visible markings that at least partly overlap with the optically variable layer are produced in the laser-markable layer after the application of the optically variable layer. The invention further includes a data carrier produced by the method and a semifinished product, such as a data carrier blank, that is provided for processing by the method.
申请公布号 US7252239(B2) 申请公布日期 2007.08.07
申请号 US20020203637 申请日期 2002.10.23
申请人 GIESECKE & DEVRIENT GMBH 发明人 BRAUN ECKHARD
分类号 G06K19/02;B41M3/14;B42D15/00;B42D15/10;B44F1/12;D21H21/40;G06K1/12;G06K19/06 主分类号 G06K19/02
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