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1. (WO2013143007) PERFORATION-BASED SECURITY FEATURE IN A MULTILAYER SUBSTRATE

Pub. No.:    WO/2013/143007    International Application No.:    PCT/CH2012/000071
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Fri Mar 30 01:59:59 CEST 2012
IPC: B42D 15/00
Applicants: ORELL FÜSSLI SICHERHEITSDRUCK AG
EICHENBERGER, Martin
SAUTER, Dieter
Inventors: EICHENBERGER, Martin
SAUTER, Dieter
Title: PERFORATION-BASED SECURITY FEATURE IN A MULTILAYER SUBSTRATE
Abstract:
The security document has a substrate (1) that comprises several substrate layers (7, 8, 20) as well as a microperforation (6). The microperforation (6) is formed by a plurality of holes (9, 14), with at least some of the holes extending not through all, but only through a part of the substrate layers (7, 8, 20). This allows to create a number of security features that are hard to imitate.