发明名称 SECURITY DOCUMENT COMPRISING A HIDDEN SECURITY FEATURE
摘要 The invention relates to a security document (30) comprising an area (20) in which a first item of print information (21) and a second item of print information (22) are stored which, in predetermined environmental conditions, elicit an identical impression of colour such that when said predetermined environmental conditions apply, a homogeneous uniform impression of colour is elicited in said area (20). The first print information (21) and second print information (22) cannot be distinguished between as a result of said elicited impression of colour, the first print information (21) being formed by printed colour pigments with a body colour, and the second print information (22) being formed by an ink with a structural colour whose elicited impression of colour can be altered by a stimulus. The invention also relates to a method for verifying such a security document (30), and to a method for the production of same.
申请公布号 EP3079919(A2) 申请公布日期 2016.10.19
申请号 EP20140809654 申请日期 2014.12.10
申请人 BUNDESDRUCKEREI GMBH 发明人 TRÖLENBERG, STEFAN;FISCHER, JÖRG;KULIKOVSKA, OLGA
分类号 B42D25/369;B42D25/378;B42D25/41;G07D7/12 主分类号 B42D25/369
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