发明名称 Security feature and method for producing it
摘要 The production process is for a document having a carrier layer (20) and a covering layer (26) Some regions (34) are free of coating. A laser wavelength it identified to bring in the coated regions. The carrier layer with opposite first and second (24) main surfaces is prepared. The absorbent covering layer (26) is applied, followed by a mask (28) defining the coating-free regions. Laser radiation is then applied.
申请公布号 EP1747905(B1) 申请公布日期 2016.05.04
申请号 EP20060014552 申请日期 2006.07.13
申请人 GIESECKE & DEVRIENT GMBH 发明人 GREGAREK, ANDRÉ
分类号 B42D15/00;B42D25/355;B42D25/41 主分类号 B42D15/00
代理机构 代理人
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