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57
resultados
Última actualización
09/12/2025 [07:12:00]
Resultados 50 a 57 de 57
Resumen de: AU2024255149A1
A security feature for a security document, the security feature comprising one or more photoluminescent ink layers, each including a composition capable of emitting visible light when irradiated with a specified electromagnetic wavelength range, wherein the one or more photoluminescent ink layers are at least partially printed in a window region of the security document.
Resumen de: WO2024125720A1
The invention relates to an optically variable security element (20), in particular security film or security thread, with a 5-layer stack (21) comprising, in this order, a first absorber layer (23), a first dielectric spacer layer (24), a second absorber layer (25), a second dielectric spacer layer (26) and a reflection layer (27). The invention here provides for the first and the second dielectric spacer layers (24, 26) to have different layer thicknesses in order to generate a specific IR reflection signature of the security element.
Resumen de: AU2025234312A1
A management system includes a recording device recording an image of a gaming chip and an inspection device determining a type and authenticity of the gaming chip. The gaming chip has a multilayer structure in which both sides of a colored layer are sandwiched between light color layers, surface printing representing a type of the gaming chip is performed on outer sides of the light color layers, and an authenticity recognition mark is printed on the colored layer of an inside of the light color layers by an infrared absorbing material. A visible light camera photographs a visible light image of the surface printing, and an infrared light camera photographs an infrared image of the internal printing. The inspection device determines the type and authenticity of the gaming chip using the visible light image and the infrared image. A management system includes a recording device recording an image of a gaming chip and an inspection device determining a type and authenticity of the gaming chip. The gaming chip has a multilayer structure in which both sides of a colored layer are sandwiched between light color layers, surface printing representing a type of the gaming chip is performed on outer sides of the light color layers, and an authenticity recognition mark is printed on the colored layer of an inside of the light color layers by an infrared absorbing material. A visible light camera photographs a visible light image of the surface printing, and an infrared light camera ph
Resumen de: WO2025214825A1
The present invention relates to a process of manufacturing a (security) product comprising a color image which is viewable under cross-polarisers, comprising a) providing a substrate; b) providing a nematic liquid crystal layer on the substrate; c) illuminating the nematic liquid crystal layer, which is in the nematic phase, through a mask by means of UV/VIS radiation; d) heating the nematic liquid crystal layer above the temperature of the phase transition to the isotropic phase; and e) illuminating the nematic liquid crystal layer, which is in the isotropic phase, with UV/VIS radiation; to obtain the fixed color image, which is viewable under cross-polarisers, wherein the different colors of the color image are caused by two or more regions of different birefringence, which depend on the ratio of nematic and isotropic liquid crystals contained in the region. The production of the color images is compared to techniques described in the prior much cheaper and offers high flexibility in producing different color images.
Resumen de: US2025319718A1
According to examples, a substrate may be moved through a magnetic field, in which the substrate includes a fluid carrier containing magnetically-orientable flakes. The magnetic field may influence the magnetically-orientable flakes to be respectively oriented in one of multiple orientations. In addition, during movement of the substrate through the magnetic field, radiation may be applied onto a plurality of selected portions of the fluid carrier through at least one opening in a mask to cure the fluid carrier at the plurality of selected portions and fix the magnetically-orientable flakes in the plurality of selected portions at the respective angular orientations as influenced by the magnetic field.
Resumen de: EP4631737A1
Vorgeschlagen wird ein Verfahren zum Herstellen ein plastisches Designelement (11) enthaltenden Druckmusters (10) auf einen Authentisierungsdatenträger (1). Durch Nutzer (50) werden dazu individuelle Ausgangsbilder (60) bereitgestellt. Durch Zusammenführung mit Designvorgaben und Randbedingungen werden aus den individuellen Ausgangsbildern (60) Druckdaten erzeugt (100), die das Ausgangsbild (60) als flächiges Druckmuster wiedergeben (102). Das Ausgangsbild (60) wird in einem ersten Druckvorgang (106) als flächiges Druckmuster aufgebracht. An den Druckdaten wird ferner eine Kantendetektion durchgeführt, um in dem Ausgangsbild (60) dominierende Kanten (20) zu bestimmen, welche die Konturen des im Ausgangsbild (60) enthaltenen Motivs (19) wiedergeben (110). Basierend auf den dominierenden Kanten (20) wird eine 3D-Druckvorlage erstellt. Entsprechend der 3D-Druckvorlage wird in einem zweiten Druckvorgang ein dreidimensionales Druckmuster auf das flächige Druckmuster aufgebracht (114).
Nº publicación: AR133600A1 15/10/2025
Solicitante:
SICPA HOLDING SA [CH]
SICPA HOLDING SA
Resumen de: TW202528492A
The invention relates of UV-Vis radiation curable coating compositions comprising magnetic or magnetizable pigment particles and methods for producing optical effect layers (OELs) comprising magnetically oriented magnetic or magnetizable pigment particles and the use of said OELs as anti-counterfeit means on security documents or security articles as well as decorative purposes. The UV- Vis radiation curable coating compositions comprises one or more (meth)acrylate monomers, one or more cyclic ether compounds, one or more vinyl ether compounds, one or more photoinitiators, one or more thermoplastic polymers and non-spherical magnetic or magnetisable pigment particles.
BOPI
Sede Electrónica
