Tintas de Seguridade

SECURITY FEATURE

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.

OPTICALLY VARIABLE SECURITY ELEMENT WITH 5-LAYER STACK, DATA CARRIER AND PRODUCTION METHOD

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.

PROCESS FOR THE PRODUCTION OF A COLORED LEVEL 2 FEATURE

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.

Gaming chip and management system

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

ORIENTING MAGNETICALLY-ORIENTABLE FLAKES

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.

METHOD AND DEVICE FOR PRODUCING A PLASTIC DESIGN ELEMENT ON AN AUTHENTICATION DATA CARRIER

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).

OPTICAL DEVICE

Resumen de: WO2025209793A1

The present invention relates to an optical device comprising a first layer that comprises an alignment surface defining an alignment direction, wherein said alignment direction varies periodically in the azimuthal orientation, defining a grating pitch, in a grating direction within the first layer; and a second layer being arranged adjacent to the first layer so that an alignment interface is formed between the first and second layer, wherein, in a cross-section parallel to the first layer, said second layer includes a patterned area comprising sections of chiral nematic liquid crystals, and wherein an orientation direction of the chiral nematic liquid crystals just within the patterned area of the second layer at the alignment interface is set by the alignment direction defined by the alignment surface of the first layer. In addition, present invention relates to an optical arrangement comprising a first and second optical device. Moreover, present invention relates to a method for manufacturing an optical device and the use of such optical device.

OPTICALLY READABLE PHYSICAL UNCLONABLE FUNCTIONS

Resumen de: US2025313712A1

(b) There is provided a method of making an optically readable PDF coating composition, the method comprising increasing the entropy of the coating composition by adding an optically readable material and optionally a solvent to at least two portions of the coating composition and then combining the portions of the coating composition.

METHOD AND DEVICE FOR PRODUCING A PLASTIC DESIGN ELEMENT ON AN AUTHENTICATION DATA CARRIER

Resumen de: US2025316023A1

A method is proposed for producing a printed pattern containing a plastic design element on an authentication data carrier. For this purpose, individual starting images are provided by users. Printing data, which reproduce the starting image as a planar printed pattern, are generated from the individual starting images by combination with design specifications and boundary conditions. The starting image is applied in a first printing process as a planar printed pattern. Furthermore, an edge detection is carried out on the printing data in order to determine dominating edges in the starting image, which reproduce the contours of the motif contained in the starting image. A 3D printing template is created based on the dominating edges. A three-dimensional printed pattern is applied to the planar printed pattern in accordance with the 3D printing template in a second printing process.

DATA CARRIER AND METHOD OF PRODUCING IT

Resumen de: WO2025202167A1

A data carrier (1) for a secure article comprises a carrier body (2), and at least one security element (3) being provided on the carrier body (2). The security element (3) comprises at least one image (4) and at least one surface structure (5). The image (4) comprises at least one primary image (6) and at least one secondary image (7) being encoded in the primary image (6). The surface structure (5) comprises at least primary surface structure elements (8) and secondary surface structure elements (9). The image (4) is at least partially printed onto the primary surface structure elements (8). At least the secondary surface structure elements (9) are configured to decode the secondary image (7) when the data carrier (1) is viewed under different viewing angles (α) and/or illuminated under different illumination angles (β), whereby the secondary image (7) becomes observable.

PRIVACY SCREEN PROTECTOR HAVING AN IMAGE AND A METHOD OF MAKING THEREOF

Resumen de: US2025310431A1

The disclosure provides a screen protector that not only protects screens but also includes at least one image having levels of visibility according to different lighting conditions. Visibility of the image can also be based on a privacy filter. The privacy filter can be part of the screen protector. In one example, a privacy screen protector for a screen is disclosed that includes: (1) a substrate having an image, and (2) a privacy filter having a viewing angle that prevents viewing of content displayed on the screen that is not within the viewing angle and simultaneously allows viewing of the image at viewing angles that is not at or within the designated viewing angle, wherein viewing of the content is further based on activation of the screen.

VALUE DOCUMENT WITH LUMINESCENCE FEATURE, VALUE DOCUMENT SYSTEM, PRODUCTION METHOD AND CHECKING METHOD

Resumen de: US2025303774A1

A flat document of value has a surface area having a longitudinal direction and a transverse direction and which is provided with a luminescence feature in the surface area. The luminescence feature includes a first luminescence marker in a first subarea and a second luminescence marker in a second, different subarea. The first and second luminescence markers are able to be excited to luminesce at the same wavelength and luminesce, after excitation, essentially in the same emission band in the infrared spectral range. The first and second luminescence markers have spectrally similar infrared emission spectra, namely infrared emission spectra that have a spectral difference between 0.5% and 15%. The first and second subarea are arranged so as to overlap one another in the surface area in projection onto the longitudinal direction and/or in projection onto the transverse direction.

OVERT SECURITY FEATURES

Resumen de: US2025303775A1

The present invention relates to the field of methods for producing eye-catching overt security features exhibiting colorshifting properties as anti-counterfeit means on security documents or security articles as well as decorative purposes. In particular, the overt security feature exhibits comprises a) a substrate (×10), a color constant layer (×20) comprising magnetically oriented platelet-shaped magnetic or magnetizable pigment particles and an optically variable layer (×30) comprising a cholesteric liquid crystal polymer (CLCP) reflecting light in the visible spectrum range, wherein the platelet-shaped magnetic or magnetizable pigment particles of the color constant layer (×20) have substantially a same elevation angle α.

DATA CARRIER AND METHOD OF PRODUCING IT

Resumen de: EP4624185A1

A data carrier (1) for a secure article comprises a carrier body (2), and at least one security element (3) being provided on the carrier body (2). The security element (3) comprises at least one image (4) and at least one surface structure (5). The image (4) comprises at least one primary image (6) and at least one secondary image (7) being encoded in the primary image (6). The surface structure (5) comprises at least primary surface structure elements (8) and secondary surface structure elements (9). The image (4) is at least partially printed onto the primary surface structure elements (8). At least the secondary surface structure elements (9) are configured to decode the secondary image (7) when the data carrier (1) is viewed under different viewing angles (α) and/or illuminated under different illumination angles (β), whereby the secondary image (7) becomes observable.

SECURITY MARKING AND VERIFICATION SYSTEM

Resumen de: WO2024155729A1

The present invention provides a method of producing a security mark by printing with a security ink, and an optical detection method to authenticate the security mark. The security ink contains an organic fluorescent molecule in an aggregated state with a highly red-shifted and broadened fluorescence spectrum compared to the monomeric state of the same material, and capable of tuning of the wavelength and intensity of fluorescence as a function of concentration.

SECURITY DEVICES AND METHODS OF MANUFACTURE THEREOF

Resumen de: MX2025010266A

Optically variable security device comprising: a substrate (10); an array of focussing elements (20, 21) disposed in or on the substrate; and an image array (30) disposed in or on the substrate and overlapping with the array of focussing elements, wherein the image array comprises at least first (11) and second (12) sets of image elements, the first set of image elements and the second set of image elements being interleaved with each other, wherein the image array comprises a first ink and a second ink different from the first ink, one or both of the first and second inks comprising a luminescent material.

SYSTEM FOR TRACKING PRODUCTION WORKFLOW INFORMATION OF DIGITAL PHOTOPOLYMER PRINTING PLATES

Resumen de: WO2024110904A1

A process for manufacture of a flexographic printing plate pursuant to a plurality of process steps, including at least an imaging step, a curing step, a washing or other non-cured-polymer-removal step, each step performed by a processing machine having at least one variable operating parameter. The process includes providing a smart plate tracking (SPT) code on each flexographic printing plate, storing in computer memory instructions readable by a computer processor information corresponding to the at least one variable operating parameter for each of the processing machines in association with the SPT code, and in response to receiving the SPT code as an input from a user or machine interface corresponding to one of the processing machines, the computer processor returning instructions corresponding to one of the processing machines.

COVERT MACHINE-READABLE MICRO-OPTIC FEATURE EMBEDDED IN LENS LAYER

Resumen de: MX2025010657A

Micro-optic devices including micro-optic devices which include an optical spacer (110) having a first side and a second side, an icon layer (120) comprising a plurality of image icons of a first color disposed on the first side of the optical spacer, and a focusing layer (105) comprising a plurality of refractive focusing elements (107) disposed on the second side of the optical spacer. The plurality of refractive focusing elements project a synthetically magnified image of the plurality of image icons, and image icons of the first color project a component of the synthetically magnified image that is of the first color. Additionally, the refractive focusing elements are doped with a machine readable taggant which emits a characteristic signal at a first frequency in the ultraviolet spectrum.

MICRO-OPTIC SECURITY DEVICE WITH PHASE ALIGNED IMAGE LAYERS

Resumen de: MX2025010803A

A micro-optic security device (105) includes a planar array of microlenses (305), which are configured to focus light along a plurality of focal paths (610) associated with a viewing angle. The micro-optic security device further includes an icon layer stack (905) disposed along the plurality of focal paths. The icon layer stack includes a first icon layer (620) with volumes of cured material of a first color (613b) and volumes of substantially transparent material at locations outside of focal paths of the first range of viewing angles. The icon layer stack also includes a second icon layer (640) with volumes of substantially transparent cured material at locations along focal paths of the first range of viewing angles, and volumes of cured material of a second color (637a) at locations along focal paths of a second range of viewing angles.

Maskierungsplatte, Anordnung und Verfahren zum Erzeugen mindestens eines taktil erfassbaren Rasterelements eines Rasters an oder in einem Substrat

Resumen de: DE102024108177A1

Die Erfindung betrifft eine für Laserstrahlen resistente Maskierungsplatte, eine Anordnung und ein Verfahren zum Erzeugen mindestens eines taktil erfassbaren Rasterelements (102) eines Rasters (104) an oder in einem Substrat (100). Das Verfahren umfasst die Schritte des Bereitstellens des Substrats (100) aus einem Substratmaterial sowie des lokalen Aufschäumens des Substratmaterials (100) mit einem Laserstrahl (106) einer Laserquelle (108), wodurch das mindestens eine Rasterelement (102) des Rasters (104) erzeugt wird, wobei a) auf das Substrat (100) eine gegenüber dem Laserstrahl (106) resistente Maskierungsplatte (110) aufgebracht wird, bevor das mindestens eine Rasterelement (102) erzeugt wird, welche mindestens ein an das Rasterelement (102) angepasstes Durchgangsloch (112) aufweist, wobei das lokale Aufschäumen des Substratmaterials durch das mindestens eine Durchgangsloch (112) der Maskierungsplatte (110) hindurch erfolgt; oder wobei b) auf das Substrat (100) ein der Strahlführung des Laserstrahls (106) dienendes Führungsrohr aufgesetzt wird, wobei durch das lokale Aufschäumen des Substratmaterials durch das Führungsrohr hindurch das Rasterelement (102) erzeugt wird.

OPTICALLY VARIABLE SECURITY FEATURE

Resumen de: WO2025199506A1

A security document includes a printable substrate (105, 301, 401, 501, 601, 701) having a hybrid security feature (320, 400, 510, 600, 700). The hybrid security feature includes a first sub-region (305, 605, 705) comprising a first area of optically variable ink, and a second sub-region (310, 405a-c, 610, 710) comprising a second area of a first fluorescent ink. The first fluorescent ink of the second sub-region glows only under ultraviolet light. The hybrid security feature presents an optically variable effect characterized by, when viewed in natural light, the optically variable ink of the first sub-region presents an optically variable effect, and the first fluorescent ink of the second sub-region does not glow, and when viewed in ultraviolet light, the optically variable ink of the first sub-region appears as one or more solid colors, and the first fluorescent ink of the second sub-region glows.

MANUFACTURING LIGHT FIELD PRINTS

Resumen de: US2025296316A1

Techniques for manufacturing a light field print using a printing press. The techniques include: identifying at least one characteristic of the printing press at least in part by printing at least one calibration pattern; obtaining content to be rendered using the light field print, the content comprising multiple scene views; generating, based at least in part on the content and the at least one characteristic of the printing press, a front target pattern and a back target pattern; and using the printing press to: print the front target pattern on a first side of a substrate; and print the back target pattern on a second side of the substrate.

ARTICLE WITH ANGLED REFLECTIVE SEGMENTS

Resumen de: US2025296380A1

According to examples, an article may include a base layer that extends along a first dimension and a second dimension, in which the second dimension is orthogonal to the first dimension. The article may also include reflective ribbons provided on an upper surface of the base layer, in which the reflective ribbons positioned along a common plane extending in the second dimension have dihedral angles that change as a function of distance across the common plane.

MAGNETIZING DEVICE, AND ASSOCIATED CYLINDER AND MACHINE

Resumen de: WO2024104684A1

The present invention relates in particular to a magnetizing device (B) intended to be placed in an exposure and transfer cylinder for orienting particles sensitive to magnetic fields, comprising a main magnet assembly (10) in the form of a plate, a plurality (20) of secondary magnets (20i) forming a two-dimensional array, said secondary magnets (20i) being small relative to the main magnet assembly (10), the poles of the magnets of said plurality (20) of secondary magnets (20i) being oriented in a direction extending in a plane generally parallel to the midplane (P) of the main assembly (10); in said plurality of secondary magnets (20i): each magnet being separated from the neighbouring magnet by a space; said array of secondary magnets (20i) extending along a curved surface; the magnets of the device (B) being shaped so that the magnetic field lines generated by these magnets act at a distance greater than the distance (D) by which they are embedded.

MASKING PLATE, ARRANGEMENT AND METHOD FOR PRODUCING AT LEAST ONE TACTILE GRID ELEMENT OF A GRID ON OR IN A SUBSTRATE

Nº publicación: EP4620697A1 24/09/2025

Solicitante:

BUNDESDRUCKEREI GMBH [DE]
Bundesdruckerei GmbH

Resumen de: EP4620697A1

Die Erfindung betrifft eine für Laserstrahlen resistente Maskierungsplatte, eine Anordnung und ein Verfahren zum Erzeugen mindestens eines taktil erfassbaren Rasterelements (102) eines Rasters (104) an oder in einem Substrat (100). Das Verfahren umfasst die Schritte des Bereitstellens des Substrats (100) aus einem Substratmaterial sowie des lokalen Aufschäumens des Substratmaterials (100) mit einem Laserstrahl (106) einer Laserquelle (108), wodurch das mindestens eine Rasterelement (102) des Rasters (104) erzeugt wird, wobei a) auf das Substrat (100) eine gegenüber dem Laserstrahl (106) resistente Maskierungsplatte (110) aufgebracht wird, bevor das mindestens eine Rasterelement (102) erzeugt wird, welche mindestens ein an das Rasterelement (102) angepasstes Durchgangsloch (112) aufweist, wobei das lokale Aufschäumen des Substratmaterials durch das mindestens eine Durchgangsloch (112) der Maskierungsplatte (110) hindurch erfolgt; oder wobei b) auf das Substrat (100) ein der Strahlführung des Laserstrahls (106) dienendes Führungsrohr aufgesetzt wird, wobei durch das lokale Aufschäumen des Substratmaterials durch das Führungsrohr hindurch das Rasterelement (102) erzeugt wird.