Tintes de Seguretat

REFLECTIVE FABRY-PÉROT (F-P) RESONANT STRUCTURES AND METHODS OF TUNABLE PLASMONIC COLOR PRINTING

Resumen de: US20260036731A1

Plasmonic color printing by fabricating a Fabry-Pérot (F-P) resonant structure on a substrate. The F-P resonant structure includes a reflective layer, a dielectric spacer layer overlying the reflective layer, and a random metal film (RMF) layer that overlies the dielectric spacer layer and has a nanostructure. The F-P resonant structure is photomodified using a laser, which induces changes in the nanostructure of the RMF layer. These changes are tailored to produce desired changes in the light-scattering and reflective properties of the RMF layer. As a result, by tailoring the photomodifications and the changes it produces, the color-generated by illumination filtered through and reflected from the F-P resonant structure can be tailored to a desired hue.

SECURITY MARKER SYSTEM

Resumen de: US20260034827A1

A security or identification system including the application of two or more marker portions that include one or more compounds or mixture of compounds that fluoresce under exposure to electromagnetic radiation. The marker portions emit light at different wavelengths to each other when exposed to said electromagnetic radiation.

RYLENE-BASED UV CURABLE SECURITY INK COMPOSITIONS

Resumen de: US20260035579A1

The invention relates to the field of UV curable security ink compositions comprising rylene-based compounds, radically curable monomers, oligomers or mixtures thereof, and radical photoinitiators. The invention further relates to security features obtained by applying or printing the security ink compositions, articles or documents containing said security features and method of preparing the security features comprising the UV curable security ink compositions.

COLOUR IMAGE FORMED FROM A HOLOGRAM

Resumen de: US20260034826A1

A color image is disclosed. The color image comprises: a first layer including a holographic structure forming an arrangement of pixels each including sub-pixels of distinct colors; and color modulation means configured to select the color of the pixels by modifying the colorimetric contribution of the sub-pixels relative to each other in the pixels so as to reveal a customized color image. The color modulation means can comprise: regions of the holographic structure, called destroyed regions, which are locally destroyed by laser; masking means positioned facing the arrangement of pixels to locally mask all or part of the sub-pixels; or amplification means positioned facing the arrangement of pixels to locally amplify the lightness of all or part of the subpixels.

Sicherheits- oder Wertdokument mit einem Sicherheitsmerkmal, Herstellungsverfahren desselben und Verfahren zur Überprüfung dessen Echtheit

Resumen de: DE102024121612A1

Die Erfindung betrifft Sicherheits- oder Wertdokument (10) umfassend ein Substrat (11) mit einem Sicherheitsmerkmal (15),wobei das Sicherheitsmerkmal (15) wenigstens einen ersten Druckbereich (20.1), der auf einer ersten Position (21.1) auf dem Substrat (11) angeordnet ist und wenigstens einen zweiten Druckbereich (20.2), der auf einer zweiten Position (21.2) auf dem Substrat (11) angeordnet ist, umfasst,wobei der erste Druckbereich (20.1) mit einem ersten Farbsystem (30.1) bedruckt ist, das einen elektrolumineszenten Bestandteilen (40) aufweistundder zweite Druckbereich (20.2) mit einem zweiten Farbsystem (30.2) bedruckt ist, das keinen elektrolumineszenten Bestandteil aufweist,und wobei die Positionen (21.1, 21.2) der Anregbarkeit oder Nichtanregbarkeit von Elektrolumineszenz der Druckbereiche (20.1, 20.2) auf dem Sicherheits- oder Wertdokument einen maschinenlesbaren Code generieren und die Farben der beiden Farbsysteme (30.1, 30.2) für den gewöhnlichen Betrachter bei Tageslicht keinen anderen Farbeindruck vermittelnWeiterhin betrifft die Erfindung ein Herstellungsverfahren und ein Verfahren zur Überprüfung der Echtheit solcher Sicherheits- und Wertdokumente.

SECURITY DOCUMENT OR VALUE DOCUMENT COMPRISING A SECURITY FEATURE, METHOD FOR PRODUCING SAME, AND METHOD FOR VERIFYING THE AUTHENTICITY THEREOF

Resumen de: WO2026027956A1

The invention relates to a security document or value document (10) comprising a substrate (11) having a security feature (15), wherein the security feature (15) comprises at least one first printed region (20.1), which is situated at a first position (21.1) on the substrate (11), and at least one second printed region (20.2), which is situated at a second position (21.2) on the substrate (11); the first printed region (20.1) is printed using a first color system (30.1) which has an electroluminescent component (40) and the second printed region (20.2) is printed using a second color system (30.2) which does not have electroluminescent components; the positions (21.1, 21.2) of excitability or non-excitability of electroluminescence of the printed regions (20.1, 20.2) on the security document or value document generate a machine-readable code; and the colors of the two color systems (30.1, 30.2) do not impart any other color impressions to the average observer in the daylight, the color difference Delta E30.1-30.2 of the two color systems (30.1, 30.2) in the daylight being less than 2.5. The invention further relates to a production method and to a method for verifying the authenticity of such security documents and value documents.

SECURITY DOCUMENT INCLUDING AN OPTICALLY VARIABLE SECURITY FEATURE

Resumen de: EP4686578A1

A security document (10) includes a first security element (40) embedded in a substrate (1) of the same. The first security element (40) is part of an optically variable security feature (3) and is not visible when the security document (10) is viewed at a first observation angle, but becomes visible when the security document (10) is viewed at a second observation angle. This is achieved by hiding the first security element (40) behind an opaque layer (31) of the substrate (1), and providing appropriate openings (42) in the opaque layer, with which the security element (40) is aligned such that it can only be seen when the security document (10) is viewed at the second observation angle.The openings (42) can be through-holes (43, see figures 2, 3) or zones without an opaque material (39, see figures 4, 5).

A security assembly and method for manufacturing the same

Resumen de: NZ800958A

A security assembly, including at least one substrate element, at least one first pattern and at least one second pattern, the at least one first pattern being associated with the at least one substrate element, the at least one first pattern being at least in part translucent or transparent, the at least one second pattern being associated with the at least one substrate element, each of the at least one first pattern overlapping at least in part the at least one second pattern, wherein, upon viewing the assembly, the at least one first pattern and the at least one second pattern are configured to generate, at least one side of the assembly, at least one third pattern, each of the at least one third pattern including an optically variable image, wherein the second pattern is defined by at least one material, the at least one substrate element includes a hinge; wherein the at least one third pattern includes at least one pattern of a Moiré interference of one of the at least one second pattern with one of the at least one first pattern, the second pattern being at least in part distinct from the first pattern with at least one predefined parameter; wherein the at least one substrate element is at least in part translucent or transparent in at least one area where the at least one first pattern overlaps at least in part the at least one second pattern; wherein the first pattern is on a first plane; and the hinge includes filaments in different directions, so as to form a grid

IDENTIFICATION DOCUMENT PERSONALIZATION SYSTEM WITH CURING CONTROL

Resumen de: US20260027847A1

Identification document personalization systems and methods that use a cure lamp to both pin (i.e. partially cure) radiation curable material printed on the surface of an identification document and completely or fully cure radiation curable material printed on the surface of the identification document. This eliminates the need to have both a pinning lamp and a cure lamp, which reduces the cost and complexity of the system and reduces the cost of the system.

CARD AND CARD USAGE APPARATUS

Resumen de: US20260027848A1

A card includes an invisible code section in which a biometric code obtained by encoding the biometric information of a user using a predetermined encoding process is recorded in an invisible manner, a memory that stores encrypted information encrypted using the biometric information, and a display section that displays reference information referenced by the user when using the card.

METHOD OF PERSONALIZING A SECURITY DOCUMENT

Resumen de: WO2026017421A1

A method of personalizing a security document includes a formation of a personalized output image (5) by printing a two-dimensional pattern (6) consisting of a single continuous line (8). In this printing, at least one line parameter of each line unit (10) of the single continuous line (8) is varied in accordance with color values of the image units (9) in the personalized input image (4) to create a personalized output image having a unique appearance. If the printed personalized output image (5), in particular, the single continuous line (8) has an electrical conductivity above a given threshold value, the personalized output image (5) may form part of an RFID antenna (18) of the security document (10).

Watermark Process for Preventing Digitally Enabled Fraud in Official Physical Documents

Resumen de: US20260021672A1

The present invention is directed towards a device and process for imprinting watermarks on physical documents. The process includes an adapter operating as a stencil and containing the watermarking material. A pen-like applicator is used to imprint the watermarking material through the stencil. The watermarking material is produced as a composition of plant components which are mixed while being treated with the application of heat and cold activation techniques.

SECURITY INK COMPOSITION AND MACHINE-READABLE SECURITY FEATURE DERIVED THEREFROM

Resumen de: US20260022261A1

A security ink composition comprising at least one non-luminescent undoped Y3Fe5−xMxO12-based pigment, wherein x fulfils the condition 0≤x≤1.25; M is selected from a group consisting of aluminum, gallium or calcium and mixtures thereof, and wherein an applied, preferably printed, at least one machine-readable security feature derived from said security ink composition, after drying and/or curing, has an integrated magnetic susceptibility of at least about 200×10−12m3 and presents a ferromagnetic resonance (FMR) signature for authentication purposes. A method for authentication of a machine-readable security feature derived from the security ink composition.

METHOD OF PERSONALIZING A SECURITY DOCUMENT

Resumen de: EP4681931A1

A method of personalizing a security document includes a formation of a personalized output image (5) by printing a two-dimensional pattern (6) consisting of a single continuous line (8). In this printing, at least one line parameter of each line unit (10) of the single continuous line (8) is varied in accordance with color values of the image units (9) in the personalized input image (4) to create a personalized output image having a unique appearance. If the printed personalized output image (5), in particular, the single continuous line (8) has an electrical conductivity above a given threshold value, the personalized output image (5) may form part of an RFID antenna (18) of the security document (10).

METHOD FOR CREATING A DIGITALLY PRINTED DÉCOR COMPRISING A CONCEALED CODE

Resumen de: AU2024289664A1

Method for generating a control file for a digital printer, wherein the control file is provided for printing a decorative pattern on a sheet. The decorative pattern is modified such that it comprises a concealed code. The method comprises the steps of - printing a first master decor showing the decorative pattern on a first sample of the sheet, thereby obtaining a first sample sheet comprising the first master decor; - performing a process on the first sample sheet comprising the first master decor, wherein the process causes a deformation of the printed first master decor on this first sample sheet; - measuring this deformation on the first sample sheet; - modifying the first master decor thereby obtaining a second master decor, wherein the second master decor is modified compared to the first master decor such that it compensates for the deformation occurring in said process; - generating a control file for a digital printer for printing the second master decor on a sheet having the same characteristics as the first sample sheet; characterized in that the printed second master decor comprises the concealed code invisible to the human eye but machine readable.

LIDAR REFLECTIVE MATERIAL AND MARKING SYSTEM

Resumen de: US2025354013A1

Disclosed here are a method of marking a dark-colored surface with a dark-colored LiDAR-reflective material and a marking composition comprising the dark-colored LiDAR-reflective material and a marking carrier. Particularly, the dark-colored LiDAR-reflective material comprises has a reflectivity in the visible spectrum of electromagnetic radiation that is ≤10% and a reflectivity in the near-IR and LiDAR spectrum of electromagnetic radiation that is ≥10%.

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.

Sicherheitselement mit Magnetcodierung, Wertdokument, Herstellungsverfahren und Prüfverfahren

Resumen de: DE102024119285A1

Die Erfindung betriff ein Sicherheitselement (14) zur Absicherung von Wertdokumenten mit einer Magnetcodierung (16) aus einer Mehrzahl von Codezellen (20). Erfindungsgemäß ist dabei vorgesehen, dass zumindest eine der Codezellen (20) der Magnetcodierung (16) einen Teilbereich aus hartmagnetischem Material mit moderater Koerzitivfeldstärke (LoCo-Material) (30) und einen Teilbereich aus einem weichmagnetischen Material (32) enthält, wobei die LoCo-Material (30) enthaltenden Teilbereiche und die weichmagnetisches Material (32) enthaltenden Teilbereiche innerhalb der Codezelle (20) nebeneinander angeordnet sind.

SECURITY INK WITH VISUAL EFFECTS

Resumen de: MX2024006898A

An ink with specific characteristics and difficult reproduction is created by means of a series of mixtures and formulas of existing elements, with the aim of providing a new and security effect that is not yet on the market, having to occupy different means and different lights for validating a same element. It is formed with the intention of finding all the effects already mentioned, in a single application.

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.

ANTI-COUNTERFEIT PACKAGE, AUTHENTICITY DETERMINATION DEVICE, AUTHENTICITY DETERMINATION SYSTEM, AND AUTHENTICITY DETERMINATION METHOD

Resumen de: WO2026003934A1

A packaging container (PA) comprises: a two-dimensional code (C1) that is printed using a second ink at a location viewable from outside the packaging container (PA) only when the packaging container (PA) is unfolded, the second ink containing a substance for absorbing light of a wavelength band other than the ultraviolet region so as to emit light of a wavelength band in the visible light region; and a QR code (registered trademark) (C2) that is printed using a first ink at a location viewable from outside the packaging container (PA) when the packaging container (PA) is folded, the first ink containing a substance for selectively absorbing or emitting light of a visible-light wavelength band.

INTAGLIO PRINTING PROCESSES FOR PRODUCING SECURITY FEATURES MADE OF OXIDATIVE DRYING INTAGLIO INKS

Resumen de: US20260002035A1

The present invention relates to the field of processes for producing a security feature on a substrate by an intaglio printing process comprising a step a) of inking an intaglio engraved printing plate with an oxidative drying intaglio ink, said intaglio engraved printing plate being at a printing plate temperature between about 45° C. and about 85° C.; a step b) of wiping off any excess the oxidative drying intaglio ink using a paper of a tissue wiping system or using a polymeric wiping cylinder and cleaning said polymeric wiping cylinder with an alkaline aqueous wiping solution in combination with one or more mechanical means; a step c) of transferring said oxidative drying intaglio ink in the form of the security feature on the substrate; and a step d) of drying the oxidative drying intaglio ink in the presence of air so as to form the security feature.

PIGMENT PREPARATIONS FOR USE IN LOW VISCOSITY SECURITY INKS

Resumen de: WO2025257227A1

The present invention relates to the use of a pigment preparation for security applications, or in low viscosity security inks, said pigment preparation comprises (A) at least one organic pigment, (B) at least one pigment derivative, selected from the group of the sulfonic acid derivatives of quinophtalone pigments; wherein the organic pigment (A) particles have a mean crystallite size in the range of from 15 nm to 28 nm, especially in the range of from 20 nm to 28 nm, wherein the low viscosity security inks are selected from the group of screen printing inks, flexography printing inks, heliogravure printing inks, staining inks, inkjet printing inks, spray coating inks, aerosol jet printing inks, electrohydrodynamic printing inks, slot die coating inks, and Laser Induced Forward Transfer (LIFT) printing inks. The low viscosity security inks, comprising the pigment preparation, having altogether advantageous performance properties, especially high color strength and excellent absorption characteristics paired with good dispersion stability and low sedimentation. A high penetration depth is achieved when used in dyeing paper, cellulose etc.

OPTICALLY VARIABLE SECURITY ELEMENT WITH MACHINE-READABLE FEATURE SUBSTANCE AND OPTICAL FUNCTIONAL LAYER, VALUE DOCUMENT AND EXAMINATION METHOD

Resumen de: AU2024313636A1

The invention relates to an optically variable security element (20) for protecting a value document (10), having a first machine-readable feature substance (36) and an optical functional layer (24, 26) which gives the security element (20) an optically variable appearance when viewed. According to the invention, the security element (20) is formed from multiple layers, with an interior film layer (30) which has a first side and an opposite second side, wherein the film layer (30) is provided at least on the first side with an adhesive layer (34) for connecting to the value document (10) and on the second side with the optical functional layer (24, 26), and wherein the first machine-readable feature substance (36) is arranged in the film layer (30) or on the second side of the film layer (30).

POLYMER PARTICLES FOR MARKING OR CODING OBJECTS

Nº publicación: EP4662071A1 17/12/2025

Solicitante:

CYPHER SCIENCE [FR]
GLINCS [FR]
UNIV CLAUDE BERNARD LYON [FR]
CENTRE NAT RECH SCIENT [FR]
Cypher Science,
Glincs,
UNIVERSITE CLAUDE BERNARD LYON 1,
Centre National de la Recherche Scientifique

Resumen de: WO2024165815A1

The invention relates to providing markers for identifying and/or authenticating objects, in particular valuable objects, and, more specifically, stable, effective, easily synthesised, economical, unforgeable markers that afford multiple, complex coding possibilities. The invention relates to particles (P), in particular particles suitable for marking, identifying and/or authenticating objects, in particular valuable objects, that are: - based on at least one polymer bearing chelating groups; - the largest dimension of which is between 0.1 and 1000 µm, preferably between 1 and 500 µm, even more preferably between 1 and 50 µm; and - to which are bonded at least one mineral marking element (M) and, optionally, at least one organic marking element (O); at least one portion of these one or more mineral marking elements (M) being chelated by the polymer. The invention also relates to a powder, a suspension or a composition comprising these particles P, and to a method for producing these particles.