发明名称 MULTILAYER BODY WITH A LASER-SENSITIVE LAYER
摘要 The invention relates to a method for enhanced anti-forgery security of paper documents. A transfer foil or laminated foil that has a laser-sensitive layer is placed on the paper document for said purpose. The multilayer body is then treated with laser radiation. A laser-induced marking is produced in the laser-sensitive layer, e.g. by means of laser-induced bleaching, laser-induced color change or laser-induced blackening. Said laser-induced marking makes it possible to individualize the document.
申请公布号 WO03095745(A1) 申请公布日期 2003.11.20
申请号 WO2002DE01677 申请日期 2002.05.08
申请人 LEONHARD KURZ GMBH & CO. KG;ORGA KARTENSYSTEME GMBH;LUTZ, NORBERT;ZINNER, GERHARD;SCHUMACHER, MATTHIAS;KNAACK, ULRICH;FISCHER, DIRK 发明人 LUTZ, NORBERT;ZINNER, GERHARD;SCHUMACHER, MATTHIAS;KNAACK, ULRICH;FISCHER, DIRK
分类号 B42D15/10;B32B27/20;B32B29/00;B41M5/26;B44C1/17;D21H21/44 主分类号 B42D15/10
代理机构 代理人
主权项
地址