EP 3079921 B1 20190925 - SECURITY ELEMENT HAVING A UV-EXCITABLE FIELD DEPENDENT EFFECT, METHOD FOR VERIFICATION OF SUCH SECURITY ELEMENT AND STRUCTURAL COLOUR COMPOSITION
Title (en)
SECURITY ELEMENT HAVING A UV-EXCITABLE FIELD DEPENDENT EFFECT, METHOD FOR VERIFICATION OF SUCH SECURITY ELEMENT AND STRUCTURAL COLOUR COMPOSITION
Title (de)
SICHERHEITSELEMENT MIT UV-ANREGBAREM FELDABHÄNGIGEN EFFEKT, VERFAHREN ZUM VERIFIZIEREN EINES SOLCHEN SICHERHEITSELEMENTS UND STRUKTURFARBE
Title (fr)
ÉLÉMENT DE SÉCURITÉ À EFFET DÉPENDANT D'UN CHAMP ET EXCITABLE PAR UV, PROCÉDÉ DE VÉRIFICATION D'UN ÉLÉMENT DE SÉCURITÉ ET COMPOSITION COULEUR STRUCTURAL
Publication
Application
Priority
- DE 102013225518 A 20131210
- EP 2014077290 W 20141210
Abstract (en)
[origin: WO2015086713A2] The invention relates to a security element (110), to a method for verification of a security element (110), which comprises microcapsules (10) containing colloidal particles (13), which can be arranged and/or rearranged relative to each other in a crystalline structure (15) by means of a structural excitation, which comprises a forming of an electrical and/or magnetic field, wherein the crystalline structure (15) has reflective and/or transmissive properties for light which can be influenced and/or adjusted via the structural excitation, wherein there are additional luminescence pigments which display a luminescence in the case of a luminescence excitation which occurs via an irradiation of UV light, and the luminescence pigments are arranged such that an observable luminescence is dependent on the structural excitation by means of the electrical and/or magnetic field; that is, an observable luminescence at constant UV-excitation can be influenced via the excitation with the electrical and/or magnetic field, and thus varied by the structural excitation.
IPC 8 full level
B42D 25/369 (2014.01); B42D 25/378 (2014.01); B42D 25/387 (2014.01); C09D 11/50 (2014.01); G07D 7/12 (2016.01)
CPC (source: EP)
B42D 25/369 (2014.10); B42D 25/387 (2014.10); G07D 7/1205 (2017.04)
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)
DE 102013225518 A1 20150611; DE 102013225518 B4 20180503; EP 3079921 A2 20161019; EP 3079921 B1 20190925; WO 2015086713 A2 20150618; WO 2015086713 A3 20150806
DOCDB simple family (application)
DE 102013225518 A 20131210; EP 14820774 A 20141210; EP 2014077290 W 20141210