EP 3983241 A1 20220420 - SECURITY ELEMENT WITH PRINTING INKS THAT VARY UPON ILLUMINATION WITH ELECTROMAGNETIC RADIATION IN THE INFRARED WAVELENGTH RANGE
Title (en)
SECURITY ELEMENT WITH PRINTING INKS THAT VARY UPON ILLUMINATION WITH ELECTROMAGNETIC RADIATION IN THE INFRARED WAVELENGTH RANGE
Title (de)
SICHERHEITSELEMENT MIT BEI BELEUCHTUNG MIT ELEKTROMAGNETISCHER STRAHLUNG IM INFRAROTEN WELLENLÄNGENBEREICH UNTERSCHIEDLICHEN DRUCKFARBEN
Title (fr)
ÉLÉMENT DE SÉCURITÉ PRÉSENTANT DES ENCRES D'IMPRESSION DIFFÉRENTES LORS DE L'ÉCLAIRAGE PAR UN RAYONNEMENT ÉLECTROMAGNÉTIQUE DANS LA PLAGE DES LONGUEURS D'ONDE INFRAROUGES
Publication
Application
Priority
- DE 102019004229 A 20190613
- EP 2020025269 W 20200609
Abstract (en)
[origin: WO2020249259A1] The invention relates to a security element for application to a surface of a valuable document or at least partial embedding into a substrate of the valuable document, for example a banknote or a passport, wherein the security element consists of a plastics film. According to the invention, at least one printing ink which is transparent in the infrared wavelength range of electromagnetic radiation (referred to hereinafter as IR-transparent printing ink) and has a first reflectance value and at least one printing ink which is absorbent in the infrared wavelength range of electromagnetic radiation (referred to hereinafter as IR-absorbing printing ink) and has a second reflectance value are applied to the plastics film of the security element, the separation between the first and second reflectance values being at least 40%.
IPC 8 full level
B42D 25/382 (2014.01); B41M 3/14 (2006.01)
CPC (source: CN EP US)
B41M 3/14 (2013.01 - US); B42D 25/382 (2013.01 - CN EP US); B41M 3/14 (2013.01 - EP); B42D 25/24 (2014.10 - US); B42D 25/29 (2014.10 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019004229 A1 20201217; CN 113993713 A 20220128; CN 113993713 B 20230407; EP 3983241 A1 20220420; EP 3983241 B1 20240807; US 2022305837 A1 20220929; WO 2020249259 A1 20201217
DOCDB simple family (application)
DE 102019004229 A 20190613; CN 202080041777 A 20200609; EP 2020025269 W 20200609; EP 20733192 A 20200609; US 202017616815 A 20200609