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SPECIAL PLASTIC FILM FOR THE PRODUCTION OF SECURITY DOCUMENTS

Resumen de: US20260166860A1

0000 Provided is a security document (A) having a first outer surface (AS1) and a second outer surface (AS2) opposite the first outer surface (AS1) comprising at least: (A1) a first polymer film (A1), (A2) a second polymer film (A2), (A3) optionally at least one further polymer film (A3), (A4) a security feature (A4), (A5) optionally fibres, in particular structural fibres, wherein at least one of the polymer films selected from the group consisting of the first polymer film (A1), the second polymer film (A2), optionally the at least one further polymer film (A3) or a combination of at least two of these comprises a thermoplastic elastomer (TPE) or consists of at least one TPE and forms at least one of the outer surfaces (AS1) or (AS2) and to a process for producing such a security document and to the use thereof.

ANTI-COUNTERFEITING ELEMENT AND ANTI-COUNTERFEITING PRODUCT

Resumen de: US20260166909A1

Disclosed are an anti-counterfeiting element and an anti-counterfeiting product. The anti-counterfeiting element comprises: a substrate (1), the substrate comprising a first surface and a second surface opposite to each other; a microlens array layer (2), the microlens array layer being located on the first surface of the substrate; a micrographic array layer (3), the micrographic array layer being located on the second surface of the substrate, a side surface of the micrographic array layer far away from the substrate comprising at least micrographic areas and micrographic background areas, there being multiple micrographic areas and multiple micrographic background areas, and the areas being alternately arranged; a second color layer (6), the second color layer being located on the side surface of the micrographic array layer far away from the substrate; and first color layers (4), the first color layers being located between the micrographic array layer and the second color layer, there being multiple first color layers, and the multiple first color layers being in one-to-one correspondence with the multiple micrographic areas, wherein one of the first color layer and the second color layer is a metal plating layer and the other is an interference light variable layer. The problem of poor anti-counterfeiting performance of anti-counterfeiting elements in the prior art is solved.

SECURITY ELEMENT WITH LIGHT SCATTERING ELEMENT

Resumen de: EP4506182A1

A data carrier (1) for a secure article (10) extends along an extension direction (E) and along a transverse direction (T) extending perpendicularly to the extension direction (E) and comprises at least one light guiding element (2) and at least one security element (3). The light guiding element (2) is configured to guide light such that light illuminating the light guiding element (2) is guided along the light guiding element (2). The light guiding element (2) and the security element (3) are arranged such, that light being guided along the light guiding element (2) is illuminating the security element (3). The security element (3) comprises or consists of at least one light scattering element (4) being configured to scatter light upon an illumination with light by the light guiding element (2).

PERSONALIZED METAL CARD

Resumen de: WO2026120040A1

The invention relates to a metal card (1) comprising: a metal substrate (2), a coating (10) deposited on one face of the substrate and comprising: a first stack (12) covering an area and comprising a coat of ink (13), and a second stack (15) covering another area and comprising a coat of varnish (17) and optionally a coat of black ink (16), the first and second stacks being placed side by side, the coating forming a pattern comprising: a first portion (22) comprising the first stack and having a first color, a second portion (24) comprising the second stack and having a second color, and a third portion (26) formed by a third area of the first face of the substrate and having a third color, the first, second and third colors being in contrast with one another. The card may comprise a third stack (18).

DENDRITE FORMATION FOR SECURE TAGGING USING MULTI-FLUID SYSTEMS

Resumen de: US20260158813A1

0000 Forming a unique stochastically branching pattern includes providing a first fluid between a surface of a first substrate and a surface of a second substrate and introducing a second fluid between the surface of the first substrate and the surface of the second substrate. The second fluid is in direct contact with the first fluid at a formation temperature, and a viscosity of the first fluid at the formation temperature exceeds a viscosity of the second fluid at the formation temperature. The first substrate and the second substrate are separated to yield a unique stochastically branching pattern comprising the first fluid on the surface of the first substrate.

UV-LED CURABLE VISCOUS PRINTING INKS AND PRINTING PROCESSES

Resumen de: WO2025027017A1

The present invention relates to the field of viscous UV-LED radically curable inks for printing security features on substrates, in particular security documents, said inks comprising one or more radically curable (meth)acrylate compounds, one or more thioxanthone compounds, one or more amino containing synergists, one or more fillers and/or extenders, and one or more pigments of formula (I).

INKJET PRINTING WITH USE OF SPECIALTY INKS

Resumen de: EP4755648A1

0001 A method of printing on a print medium by an inkjet printer, the method comprising the steps of receiving a print job of a digital image to be printed on the print medium, receiving an identification of at least one part of the digital image to be printed on a corresponding part of the print medium for which a specialty ink is intended to be deposited which specialty ink is not available in the inkjet printer, printing the digital image together with a plurality of spaced apart, out-of-plane structures at the corresponding part of the print medium, applying an excess of the specialty ink to the printed structures, wiping off superfluous specialty ink so that the specialty ink only remains in-between the printed structures; and drying the printed medium.

ASYMMETRIC PIGMENT

Resumen de: US20260152639A1

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within +/−45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.

PERSONALIZED SECURITY DOCUMENT AND METHOD OF MANUFACTURING THE SAME

Resumen de: WO2025036557A1

A personalized security document (10) includes a first personalized image (5) and a second personalized image (8) as part of a security feature (3). The second personalized image (8) is arranged at a position that corresponds to the first personalized image (5). For example, the first personalized image (5) is laser-engraved in a first surface (6a) of a laser-engravable material layer (6). The second personalized image (8) may be formed by laser-engraving on a second surface (6b) opposite to the first surface (6a) of the laser-engravable material layer (6). Alternatively or additionally, the second personalized image (8) may be formed by printing onto a substrate (1) of the security document (10) of the laser-engravable material layer (6) to form a personalized variable watermark.

TRANSITION METAL DICHALCOGENIDE QUANTUM DOTS AND METHODS FOR PRODUCING THE SAME

Resumen de: WO2026107553A1

Disclosed herein is a method for forming transition metal dichalcogenide quantum dots, the method comprising: providing a first mixture comprising a transition metal precursor, a capping agent, and a non-coordinating solvent; heating said first mixture; providing a second mixture comprising a chalcogenide precursor material; and contacting the first mixture and the second mixture to thereby form the transition metal dichalcogenide quantum dots. Also disclosed herein is an ink composition comprising transition metal chalcogenide quantum dots, a spacer material and an organic solvent.

MANUFACTURING SECURITY DOCUMENTS BY INTAGLIO-PRINTING A THREE-DIMENSIONAL OBJECT

Resumen de: WO2026109150A1

A method is provided for manufacturing a security document by intaglio-printing a rendering of a three-dimensional object on the security document. The method comprises at least the following: S1) providing a model (1) of the object with a plurality of surfaces (A, B, C, D) in three-dimensional space; S2) attributing, to each point on the surfaces (A, B, C, D), a grayscale or color value; S3) using mapping functions (M) for mapping the surfaces (A, B, C, D) into two-dimensional parameter spaces, thereby defining grayscale or color images (2) in the parameter spaces, wherein the grayscale or color value of each point in said images is given by the grayscale or color of the point on the surface corresponding to the point of the image; S4) rendering, in the parameter spaces, the grayscale or color images (2) as halftone images (3) using halftone patterns, wherein at least some of the halftone patterns are different from each other; S5) using inverses of the mapping functions for mapping the halftone images (3) as textures onto the surfaces (A, B, C, D); S6) projecting the model with the surfaces (A, B, C, D) carrying the textures into a two-dimensional printing plane using a three-dimensional projection (P), thereby projecting said halftone images (3) and textures into the printing plane; S7) rendering, within the printing plane, the surfaces (A, B, C, D) with the textures into a two-dimensional array of printing pixels and forming an intaglio printing plate (5) with recesses co

SECURITY FEATURE, PRINTING INK, VALUE DOCUMENT AND VALUE DOCUMENT SYSTEM

Resumen de: WO2025021692A1

The invention relates to a security feature for securing a value document, wherein the safety feature is based on an ESR-active substance and a luminescent substance, wherein the ESR-active substance and the luminescent substance are either the same substance or different substances, wherein - the luminescent substance emits in the IR wavelength range, is based on a host lattice with garnet structure or perovskite structure and has rare earth metals with a rare earth metal content of ≥2.0 %; - the ESR-active substance has an ESR-active transition metal; - the ESR-active substance has an ESR signal with a g value of <1.9 or >2.1, is based on a transition-metal-containing host lattice with garnet structure or perovskite structure, has a transition metal content of the ESR-active transition metal of ≥5 % and contains rare earth metals, wherein the rare earth metal content is ≥2.0 % and <13.0 % in the event of a garnet structure, and ≥2.0 % and <18.0 % in the event of a perovskite structure.

SECURITY FEATURE, PRINTING INK, DOCUMENT OF VALUE, AND AUTHENTICITY CHECKING METHOD

Resumen de: WO2025021691A1

Security feature for protecting a document of value based on a transition-metal-containing ESR-active material that has an alkaline-earth-metal-containing or zinc-containing host lattice with a garnet structure or perovskite structure and has the following general molecular formula EaRbTcXdQeZfO12, where E is at least one alkaline earth metal chosen from the elements Mg, Ca, Sr, Ba or is Zn and a meets the condition 0 < a ≤ 4; R is at least one rare earth metal chosen from the elements Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and b meets the condition 0 ≤ b ≤ 4; T is at least one transition metal chosen from the elements Cr, Mn, Fe, Cu and c meets the condition 1 ≤ c ≤ 5; X is at least one trivalent codopant chosen from the elements B, Al, Ga, Bi and d meets the condition 0 ≤ d ≤ 4; Q is at least one tetravalent codopant chosen from the elements Si, Ge, Sn, Ti, Zr, Hf and e meets the condition 0 ≤ e ≤ 4; Z is at least one pentavalent codopant chosen from the elements P, As, Sb, V, Nb, Ta and f meets the condition 0 ≤ f ≤ 4.

PERSONALIZABLE SECURITY DOCUMENT AND METHOD OF PERSONALIZING THE SAME

Resumen de: EP4748584A1

0001 A personalizable security document (10) includes a first window (6) and at least one second window (3) formed in an opaque substrate layer (31) of a substrate (1). A laser-engravable material layer (2) is provided on another substrate layer (32) such that it overlaps the first window (6), but does not overlap the at least one second window (3). When an image (12) is laser engraved in the layer of laser-engravable material (2), this image can be seen together with a shape that is defined by an overlap region between the at least one second window (3) and the region in which the layer of laser-engravable material (2) is not provided. Accordingly, different security features can be interlocked with each other. A third window (2a) in the layer of laser-engravable material (2) is provided. A portion (1a) of the substrate is visible through the third window and the second window.

TAGGANT SYSTEMS WITH REMOTELY DETECTABLE SPECTRAL SIGNATURES

Resumen de: US20260140049A1

The present invention provides spectral code strategies that allow spectral codes to be accurately and consistently deployed in a wide range of substrates and background situations. The present invention uses taggant particles with a multilayer structure that is able to produce a strong, consistent spectral signal that is resistant to background noise effects. The spectral output can be read remotely from a distance using multispectral, particularly hyperspectral, imaging techniques.

PROCESO DE IMPRESIÓN

Resumen de: WO2025168440A1

The invention provides a novel security feature and a method for making it.

PROCESO DE IMPRESIÓN

Resumen de: WO2025168507A1

The invention provides a novel security feature and a method for making it.

PROCESO DE IMPRESIÓN

Resumen de: WO2025168506A1

The invention provides a novel security feature and a method for making it 3b.

METHOD FOR PRODUCING A SECURITY OR VALUABLE DOCUMENT, FOR VERIFYING THE AUTHENTICITY OF A SECURITY OR VALUABLE DOCUMENT, AND SECURITY OR VALUABLE DOCUMENT

Resumen de: EP4744903A1

0001 Die Erfindung betrifft ein Verfahren zur Herstellung eines Sicherheits- oder Wertdokumentes (20), mit einem Datenträger (1), der mit einem gedruckten Bild (12) einer Person versehen ist. Um die Fälschungssicherheit zu erhöhen, wird nach dem Erstellen eines Bildes (12) der Person wenigstens ein bildspezifisches Bildmerkmal (17) aus dem Bild bestimmt. Das Bildmerkmal (17) wird als elektrisch leitfähige Struktur (18) in den Datenträger (1) eingebracht. Des Weiteren betrifft die Erfindung ein entsprechendes Sicherheits- oder Wertdokument, ein Verifikationsverfahren zur Echtheitsprüfung eines solchen Dokuments, sowie eine Prüfanordnung (40) für ein derartiges Verifikationsverfahren.

PATTERN-CONTROLLED SURFACE RELIEF STRUCTURES COMPRISING LIQUID CRYSTALS

Resumen de: WO2026099089A1

The present invention relates to a process for the production of a security element, which comprises an optical structure with relief effect, comprising a) providing a (flexible) substrate suitable for aligning liquid crystals; b) depositing a curable composition, or a solvent-based composition, comprising a polymer, which is insoluble in the liquid crystal composition from step e) after evaporation of solvent, in a pattern on the substrate; c) optionally evaporating the solvent of the curable composition by applying IR-radiation and/or thermal drying; or evaporating the solvent of the solvent-based composition by applying IR-radiation and/or thermal drying; d) curing the pattern of the curable composition deposited in step b) by means of UV/VIS radiation or electron beam, wherein the curable composition and the solvent-based composition comprise at least one silicone compound having at least one functional group; preferably having at least two functional groups; and/or at least one silicone compound having at least one polymerizable group, especially having at least one ethylenically unsaturated group; preferably having at least two polymerizable groups, especially having at least two ethylenically unsaturated groups; e) applying a liquid crystal composition on at least a part of the substrate and on at least part of the pattern; f) optionally evaporating the solvent of the liquid crystal composition by applying IR-radiation and/or thermal drying; g) curing the liquid crysta

PRINTING PROCESS FOR PIERCING-RESISTANT FLAME-RETARDANT LABEL

Resumen de: WO2026097941A1

A printing process for a piercing-resistant flame-retardant label, relating to the technical field of printing. The flame-retardant label comprises a piercing-resistant base layer (10), a flame-retardant layer (20), a printed pattern layer (30), and a piercing-resistant surface layer (40) which are arranged in sequence. The base layer (10) and the surface layer (40) are DuPont films laminated together via a composite process, and the durability and use effect of the label are improved by means of the piercing resistance of the Dupont films. In the printing process, the treatment of the base layer (10) comprises stretching to ensure a flat surface, followed by precisely applying thereon a bonding layer (102) and an adhesive film layer, as well as attaching the flame-retardant layer (20), thereby effectively improving the flatness and structural strength of the base layer (10) and imparting excellent flame-retardant properties to a product. Additionally, the flame-retardant properties and the structural strength can both be improved, providing a powerful guarantee for product safety.

SHEET RECOGNITION UNIT, SHEET HANDLING DEVICE, SHEET RECOGNITION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

Resumen de: US20260133127A1

Provided is a sheet recognition unit including: a light source capable of irradiating a sheet to be recognized with light having a specific wavelength; a light sensor that includes a plurality of light receiving elements respectively including a plurality of color filters that transmit infrared light and have different visible light transmission characteristics, receives, at the plurality of light receiving elements, light arriving from the sheet to be recognized, based on the light from the light source, and outputs light detection signals; and processing circuitry that performs arithmetic on light amount data based on the light detection signals output from the light sensor, depending on a ratio of genuine reference data to calculate an amount of at least one color in visible light and an amount of infrared light and recognize the sheet to be recognized based on calculated results.

SYSTEMS AND METHODS FOR IMPLEMENTING A MICRO-SYMBOL-BASED SECURITY MARK

Resumen de: US20260131589A1

The present disclosure describes methods and systems for implementing a security mark. The method includes receiving an input image and a predefined security label. Based on the received security label, a micro-symbol is selected and an output image is generated such that the selected micro-symbol is embedded in the output image. Further, the present disclosure describes methods and systems for controlling a preset task. The method includes receiving an input image including a micro-symbol. Thereafter, a principal character and a set of peripheral characters are determined in the microtext characters. Once determined, a color and an angle associated with the set of peripheral characters are compared with a color and an angle associated with pre-stored micro-symbols. Upon successful comparison, a security label associated with the micro-symbol is determined and accordingly, a preset task is inhibited for the input image.

A METHOD FOR PRODUCING INTERFERENCE ELEMENTS

Resumen de: US20260132298A1

The present invention relates to a decorative, or security element and a method for producing the decorative, or security element. The decorative, or security element comprises in this order (a) a substrate; (b) a coating, comprising transition metal particles (A) having a number mean diameter of from 15 nm to 700 nm, wherein the transition metal is selected from silver, copper, gold and palladium, especially silver and copper, very especially silver; (c) optionally a protective coating; wherein the coating (b) is derived from (b1) a solvent based composition, comprising the transition metal particles and a vehicle; and (b2) the coating (b) has a three layer structure: (b2a) a layer, comprising the transition metal particles and a vehicle; (b2b) a layer, comprising the vehicle, which is essentially free of transition metal particles; (b2c) a layer, comprising the transition metal particles and the vehicle. The method comprises the steps of i) applying a solvent based composition comprising transition metal particles and the vehicle; on at least part of the surface of the substrate, and ii) drying the solvent based composition; iii) curing the solvent based composition so as to form the three-layer structure which exhibits intensive angle-dependent colors in reflection on the coating side and/or on the substrate side of the decorative, or security element and a distinctive color in transmission; and iii) optionally applying a protective coating on the coating (b). The three-la

METHOD FOR CREATING A DIGITALLY PRINTED DÉCOR COMPRISING A CONCEALED CODE

Nº publicación: EP4740450A1 13/05/2026

Solicitante:

UNILIN BV [BE]
Unilin, BV

Resumen de: WO2025008737A1

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.