EP 2591067 A1 20130515 - SECURITY FEATURE
Title (en)
SECURITY FEATURE
Title (de)
SICHERHEITSMERKMAL
Title (fr)
CARACTÉRISTIQUE DE SÉCURITÉ
Publication
Application
Priority
- DE 102010026627 A 20100709
- EP 2010007916 W 20101223
Abstract (en)
[origin: WO2012003854A1] The invention relates to a security feature comprising a luminescence pigment which has a host grating doped with a luminophore and is optically excited in order to emit luminescence light. The luminescence light of the luminescence pigment has a luminescence spectrum with a first luminescence peak and a second luminescence peak, the intensity of each peak being dependent on a substance constituent amount x of the luminophore in the luminescence pigment. With the luminescence pigment according to the invention, the host grating, the luminophore and the substance constituent amount x of the luminophore are selected such that even a slight increase or decrease in the substance constituent amount x of the luminophore brings about an intense relative variation in the peak intensities IA and IB. As a result thereof, the security against falsification provided by the luminescence pigment according to the invention is increased.
IPC 8 full level
C09K 11/79 (2006.01); C09K 11/67 (2006.01)
CPC (source: EP US)
B42D 15/00 (2013.01 - US); C09K 11/7701 (2013.01 - EP US); C09K 11/7703 (2013.01 - EP US); C09K 11/7756 (2013.01 - EP US); C09K 11/77742 (2021.01 - EP US); G07D 7/1205 (2017.04 - EP US); B42D 25/29 (2014.10 - EP US); B42D 25/382 (2014.10 - EP US); B42D 25/387 (2014.10 - EP US)
Citation (search report)
See references of WO 2012003854A1
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
DOCDB simple family (publication)
WO 2012003854 A1 20120112; CN 102971397 A 20130313; CN 102971397 B 20160120; EP 2591067 A1 20130515; HK 1181417 A1 20131108; RU 2013105373 A 20140820; RU 2570670 C2 20151210; US 2013106090 A1 20130502; US 9409434 B2 20160809
DOCDB simple family (application)
EP 2010007916 W 20101223; CN 201080067894 A 20101223; EP 10803059 A 20101223; HK 13108541 A 20130722; RU 2013105373 A 20101223; US 201013808840 A 20101223