EP 4338854 A2 20240320 - PROCESSES FOR PRODUCING OPTICAL EFFECTS LAYERS
Title (en)
PROCESSES FOR PRODUCING OPTICAL EFFECTS LAYERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON SCHICHTEN MIT OPTISCHEN EFFEKTEN
Title (fr)
PROCÉDÉS DE PRODUCTION DE COUCHES À EFFETS OPTIQUES
Publication
Application
Priority
EP 23218609 A 20231220
Abstract (en)
The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising at least a first motif and a second motif, each of said motifs independently comprising platelet-shaped magnetic or magnetizable pigment particles.
IPC 8 full level
CPC (source: EP)
B05D 3/207 (2013.01); B05D 5/065 (2013.01); B05D 7/52 (2013.01); B05D 7/56 (2013.01); B05D 2252/10 (2013.01)
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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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23218609 A 20231220