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29
results.
Updated on
16/02/2026 [07:04:00]
Absstract of: WO2026034009A1
A security element (10) according to one aspect of the present disclosure is provided with a laminate (12) on a substrate (11). The laminate includes: a phosphor-dispersed layer (14) in which a plurality of phosphor particles (14A) are dispersed; and a light absorption layer (13) that is disposed between the substrate and the phosphor-dispersed layer and is capable of absorbing excitation light for exciting the plurality of phosphor particles.
Absstract of: US20260042925A1
The present invention relates to a luminescent ink having a composition in % by weight comprising 20-55% of solvent, 5-55% of diluent; 2-15% of dispersant additive; 5-35% of solid particles with fluorescent properties, and 0.5-15% of solid dopant particles. The invention also relates to a process for obtaining a ceramic product with a printed luminescent label which incorporates a step in which digital printing is performed with said luminescent ink, this printing being applied on the surface substrate of the unfired ceramic part; and wherein the printing is performed with a digital printing machine; subjecting the ceramic part to a subsequent heat treatment in a conventional ceramic furnace at a temperature comprised between 650 and 1400° C.; and obtaining a fired ceramic product comprising a luminescent label visible with ultraviolet light. The invention also relates to a ceramic product obtainable by means of said process for obtaining a ceramic product, as well as to the use of the ink for printing luminescent labels that glow under ultraviolet light on ceramic products.
Absstract of: US20260042312A1
A security element for a value document includes: a first concealed motif region having a first luminescence layer with at least one first excitation wavelength in the UV-A range; and a second concealed motif region having a second luminescence layer with at least one second excitation wavelength in the UV-A range that is different from the at least one first excitation wavelength.
Absstract of: WO2026031711A1
The present invention relates to the technical field of optical anti-counterfeiting. Disclosed are a single-mode excitation color-tunable luminescent upconversion material, and a preparation method therefor and a use thereof in security anti-counterfeiting. The single-mode excitation color-tunable luminescent upconversion material has a molecular formula of AxMOCly-1:Yb/Ln, wherein A is at least one of Li+, Na+, K+, and Cs+, M is at least one of La3+, Y3+, Gd3+, and Lu3+, and Ln is at least one of Er3+, Ho3+, and Tm3+, with 1≤x≤4 and 4≤y≤7. The single-mode excitation color-tunable luminescent upconversion material has an excitation wavelength range of 950 nm to 11000 nm and an emission wavelength range of 400 nm to 800 nm. Under excitation by single-mode near-infrared light, the material exhibits color-tunable upconversion luminescence. The upconversion material has a fast-responsive color-tunable luminescence function, can be used as a high-level security anti-counterfeiting strategy, and is easy and convenient to identify.
Absstract of: WO2024205684A1
A secure document (100) includes a substrate (105) having a predetermined width and a predetermined length; a first covert feature (507) formed in the substrate; and a second covert feature (509) formed in the substrate, wherein the first covert feature is disposed at a first location on the substrate, the first location corresponding to a first registration region of an authenticating overlay (600), and wherein the second covert feature is disposed at a first location on the substrate, the first location corresponding to a second registration region of the authenticating overlay.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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).
Absstract of: 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
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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).
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: 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%.
Absstract of: 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.
Absstract of: 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.
Nº publicación: EP4673318A1 07/01/2026
Applicant:
DE LA RUE INT LTD [GB]
De La Rue International Limited
Absstract of: 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.
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