Alerta

MINERAL OIL-FREE INTAGLIO INK

Resumen de: US20260265551A1

The present invention describes a water wipe security intaglio printing ink composition comprising as a principal component bio-renewable iso-alkane vegetable oil-based solvent, which in combination with other constituents produces a mineral oil-free ink with improved sustainability and environmental impact footprint when compared to existing formulations designed for the same application.

PERSONALIZABLE SECURITY DOCUMENT AND METHOD OF PERSONALIZING THE SAME

Resumen de: US20260264443A1

A personalizable security document (10) includes a laser-engravable portion (5a) that exhibits a color-change effect when viewed under white light. This color-change effect is used to selectively mask a further security feature provided as a first pattern (27a) in a layer that is below the layer including the laser-engravable portion (5a). This is achieved by appropriately matching the color of the laser-engravable portion (5a) to the color of the first pattern (27a).

MICRO-OPTIC DEVICE WITH MULTI-COLOR BACKGROUND ICON STRUCTURE AND CORRESPONDING MANUFACTURING METHOD

Resumen de: AU2025269285A1

A micro-optic device includes an array of focusing elements (105), having a first repeat period along a first axis (201) and a second repeat period along a second axis (203). The micro-optic device also includes an icon layer (120) including a plurality of retaining structures, a first plurality of icons in a first zone (427) of the plurality of retaining structures, and a second plurality of icons formed as regions of cured light-curable material of a second color disposed on or within retaining structures of a second zone (429) of the plurality of retaining structures. The first plurality of icons has a third repeat period along the first axis, and a fourth repeat period along the second axis. The second plurality of icons has a fifth repeat period along the first axis and a sixth repeat period along the second axis.

PROCESS FOR SYNTHESIZING EUROPIUM-DOPED STRONTIUM MAGNESIUM GERMANATE PHOSPHORS

Resumen de: US20260258300A1

The present invention relates to the synthesis of europium-doped strontium magnesium germanate phosphors and, in more particular manner, to a process for the synthesis of Sr2MgGe2O7:xEu3+ (SMGO:xEu3+) phosphors (where x=0.5-6 mol %) for white LEDs, latent fingerprint detection, and anti-counterfeiting applications. The synthesis is carried out by mixing Stoichiometric molar amounts of strontium nitrate (Sr(NO3)2), magnesium nitrate (Mg(NO3)2·6H2O), germanium dioxide (GeO2), and europium nitrate (Eu(NO3)3·6H2O) were dissolved in deionized water, and further adding Aloe vera gel extract as a natural fuel, wherein the resultant solution is stirred to obtain a homogeneous redox mixture, which then boiled, ignited to form a gel, and combusted into a fine powder, wherein the fine powder is then annealed for improve crystallinity. These results substantiate the efficacy of SMGO:Eu3+ phosphor as a viable forensic material for high-resolution LFP detection, offering a compelling alternative to existing commercial powders, especially under UV-assisted visualization scenarios

LATENT INFORMATION ON A TRANSPARENT LAYER ON IDENTITY CARDS

Resumen de: US20260257510A1

0000 The present disclosure provides an identification card (1), including a base sheet (2) and on top of said base sheet an information layer containing at least one feature made of a first material, which is transparent for white light and which under irradiation with electromagnetic radiation which is not in the visible spectrum is opaque and/or colored and/or emits colored light. The feature is at least laterally embedded in a layer made of a second material, which is transparent for white light and which, is or is not under irradiation with electromagnetic radiation which is not in the visible spectrum opaque and/or colored and/or does or does not emit colored light.

TACTILE LATENT INFORMATION IN AN INKJET PRINTED LAYER ON IDENTITY CARDS

Resumen de: US20260257509A1

0000 Identification card (1), including a base sheet (2) and on top of said base sheet an information layer (8) containing at least one feature made of a first material, which is transparent for white light and which is or is not under irradiation with electromagnetic radiation which is not in the visible spectrum (eg UV-light or IR-light) opaque and/or colored and/or emits colored light. The feature is directly or via an intermediation of one or more layers inkjet printed on a surface of the base sheet (2) such that it protrudes therefrom. It is beneficial that the protrusion height is 2 um to 13 pm. The base sheet can have a laser engraved image.

ANTI-COUNTERFEITING LABEL AND METHOD FOR ITS PRODUCTION

Resumen de: WO2026176262A1

An anti-counterfeiting component (1) to be applied to a determined product, said component being comprised in a determined shape and peripheral edges and comprising: - a base support layer (2) and, proceeding in layers, starting from said base support layer (2): - a barcode (4), printed on said base support layer (2) and containing determined information content relating to a determined product; - a mechanically scratchable coating (10) or removable film, comprising graphics composed of geometric shapes and/or varied highlights, obtained by means of a printing programme, said graphics of said removable film or coating (10) being printed over an area larger than or at least equal to that covered by said barcode (4); wherein there are provided - a plurality of half-cuts (12), configured to be across, even partially, the edges of the component, so as to prevent, in use, after the component has been applied to the product, a removal of the component from the product without tearing; and wherein - said barcode (4) is a polychromatic QR code (4b), comprising colours and shades and obtained through chromatic processing of a native QR code (4a) containing said determined information content, said colours and shades being randomly associated with said determined information content. It further comprises a tag (15) which, when it is not to be read, has applied to it an element (17) for temporarily deactivating it.

SECURITY DOCUMENT, SYSTEM FOR PRODUCING A SECURITY DOCUMENT, AND METHOD FOR PRODUCING A SECURITY DOCUMENT

Resumen de: US20260249639A1

0000 A security document, a method for producing a security document and a system for producing a security document. The security document includes an absorption region for the formation of at least one item of personalized information, wherein the security document has been processed and/or can be processed in the absorption region such that the at least one item of personalized information visible through absorption of light incident on a first side. The security document further includes a first security element with an optically variable effect, wherein, in the case of observation of the first side, the first security elementis arranged behind the absorption layer and the first security elementis arranged in a first region, wherein the first region overlaps the absorption region partially or over the whole surface and the first region does not overlap the absorption regionin a background region directly adjacent to the absorption region.

OPTICAL DEVICE

Resumen de: AU2025250721A1

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.

SUSPENSION OF CHIPS IN INKS, PAINTS OR VARNISHES, METHOD OF PRODUCTION AND USE FOR TRANSFERRING THE CHIPS TO COMPLEX SURFACES USING WRITING, PRINTING OR PAINTING DEVICES

Resumen de: EP4796604A1

The present invention relates to a suspension of chips that can be directly used on spatially and geometrically complex surfaces to provide these surfaces with said chips by means of writing, painting or printing devices, and to its method of production. The present invention further relates to the use of the suspension for decoration, marking, anti-forgery or anti-fraud, encryption, as sensors, as actuators, and for manufacturing electronic devices, and to the use of the suspension for determining the dimensions of the channels of a writing, painting or printing device.

SECURITY ELEMENT WITH DIFFRACTIVE STRUCTURES

Resumen de: EP4796338A1

0001 Die Erfindung betrifft Sicherheitselement (1) insbesondere für Wertpapiere, Sicherheitspapiere oder Sicherheitsgegenstände, wie Banknoten, Ausweise, Kreditkarten, das einen ersten Bereich (2) mit optisch wirksamen, diffraktiven ersten Strukturen (3) aufweist, mittels der ein erzeugter Gesamteindruck achromatisch erscheint, und der zumindest teilweise mit einer optischen Effektschicht (4) beschichtet ist, sodass der Gesamteindruck unter einem ersten Betrachtungswinkel (5) in einer ersten Farbe (6) erscheint und unter einem zweiten Betrachtungswinkel (7) in einer zweiten Farbe (8) erscheint. 0002 Das Sicherheitselement umfasst einen zweiten Bereich (9) mit optisch wirksamen, diffraktiven zweiten Strukturen (10), der ebenfalls mit der optischen Effektschicht (4) beschichtet ist und die zweiten Strukturen (10) in ihren Struktureigenschaften gegenüber den ersten Strukturen (3) derart unterschiedlich ausgebildet sind, dass der Gesamteindruck in dem zweiten Bereich (9) unter dem ersten Betrachtungswinkel (5) in zumindest einer dritten Farbe (12) erscheint.

METHOD AND SYSTEM FOR APPLYING A REVEAL FILM TO A GREETING CARD

Resumen de: US20260241733A1

0000 A printing process comprises printing a mark on a surface of uncoated paper stock, applying a release coating over the mark, subjecting the release coating to a first ultra- violet drying process, applying a first scratch-off layer of coating over the layer of release coating, subjecting the first scratch-off layer to a second ultra-violet drying process, applying a second scratch-off layer of coating over the first scratch-off layer, and subjecting the second scratch-off layer to a third ultra-violet drying process.

SECURITY DEVICES AND METHODS OF MANUFACTURE THEREOF

Resumen de: US20260241740A1

0000 Optically variable security device including: a substrate; an array of focusing elements disposed in or on the substrate; and an image array disposed in or on the substrate and overlapping with the array of focusing elements, wherein the image array includes at least first and second 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 includes a first ink and a second ink different from the first ink, one or both of the first and second inks including a luminescent material.

SECURITY ELEMENT HAVING MAGNETIC CODING, VALUE DOCUMENT, PRODUCTION METHOD AND CHECKING METHOD

Resumen de: WO2026171434A1

The invention relates to a flat security device (10) having a substantially polygonal, in particular substantially rectangular, outline (12) and having a magnetic coding (30) composed of a plurality of code cells (32). According to the invention, the code cells (32) of the magnetic coding (30) are arranged neither parallel nor orthogonal to one of the edges (14) of the outline (12) of the flat security device.

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

Resumen de: US20260233550A1

A micro-optic device includes an optical spacer having a first side and a second side, an icon layer comprising a plurality of image icons of a first color disposed on the first side of the optical spacer, and a focusing layer comprising a plurality of refractive focusing elements 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.

SEALING MARK, A PACKAGE, AND METHODS

Resumen de: US20260233549A1

The invention relates to a sealing mark for sealing a package such as for packing medicaments. The sealing mark has a sealing layer and a hologram layer that at least partly covers the sealing layer. The sealing mark further comprises a thermosensitive layer that at least partly covers the hologram layer and/or the sealing layer. The thermosensitive layer includes thermochromic ink. The thermochromic ink is irreversible.

SECURITY MARKING AND VERIFICATION SYSTEM

Resumen de: US20260235516A1

0000 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 FEATURE

Resumen de: EP4789877A1

0001 Visual security feature comprising a substrate (2) located in a region of an object (1) and elongated metallic nanoparticles (3) non-randomly arranged in the substrate (2). When illuminated with a linearly polarized visible light (4), the feature will produce a color according to the angle between the electric field vector of the linearly polarized light (4) and the longitudinal axis of the elongated metallic nanoparticles (3), therefore changing the angle by rotating the object or the light emitter (5) will change the color of the substrate (2). The nanoparticles (3) can incorporate fluorescent materials, so that under an exciting linearly polarized light (4) the feature will produce a fluorescence that will vary in intensity according to the angle between the electric field vector of the exciting light and the longitudinal axis of the elongated metallic nanoparticles (3). Changing the angle by rotating the object (1) or the light emitter (5) will produce the effect of varying the intensity of the fluorescence.

AUTHENTICATION DEVICE

Resumen de: AU2024404893A1

The invention relates to an authentication device (1) for an information carrier (2) configured to encapsulate at least one datum relating to a product or a person, wherein the authentication device (1) comprises a zone, referred to as the authentication zone (4), wherein the authentication zone (4) comprises at least one layer (7) provided with the information carrier (2) and an optically variable element (6) that displays a variation between a first appearance and a second appearance such that, in a first state, the authentication zone (4) and/or the information carrier (2) displays the first appearance and, in a second state, the authentication zone (4) and/or the information carrier (2) displays the second appearance, wherein the transition between the first appearance and the second appearance is caused by a variation in the viewing angle, or the lighting, or a physico-chemical stimulus.

IDENTIFICATION MEDIUM

Resumen de: WO2026164056A1

An identification medium (10) according to the present invention comprises a base material (12), an identification layer (14) provided on the base material (12), and a concealing layer (16) provided on the identification layer (14). The identification layer (14) includes polarizing yarn composed of polarizing fibers that contain a polarizing dye and a transparent resin. The polarizing yarn exposed on the upper surface of the identification layer (14) exhibits a pattern a in top view. The identification layer (14) also includes functional yarn that absorbs light having a specific wavelength λ outside of the visible light region. The functional yarn exhibits a pattern b in top view.

AN ANTICOUNTERFEIT FIBER ELEMENT FOR USE IN HIGH VALUE DOCUMENTS

Resumen de: WO2026162967A1

The present invention relates to an anticounterfeit element (100) for use in documents of vale or high value documents along with device/equipment for detection of the same and a method of manufacturing the same. The anticounterfeit element (100) comprising a substrate (102), a homogenous pigmented ink/solution which exhibit a covert security feature (104) disposed on the substrate (102), and optionally a protective layer (108) deposited on the final substrate on one or both sides. The homogenous pigmented ink/solution (500) exhibit chemical resistance and durability properties to the anticounterfeit fiber element (100). The anticounterfeit element (100) is reliable.

DATA CARRIER WITH MACHINE-READABLE SECURITY FEATURE, PRODUCTION METHOD AND AUTHENTICITY CHECK METHOD

Resumen de: US20260228322A1

A data carrier has a substrate with at least one transparent plastic layer and two opposing main surfaces. It also includes two opaque-white layers having a white, opaque appearance, which are applied to the opposing main surfaces of the substrate. Each opaque-white layer is made up of a sequence of two or more partial layers, from a lowermost white layer to a top white layer. Additionally, the data carrier features a machine-readable security element that contains a feature substance present in at least one of the partial layers of at least one opaque-white layer.

ENERGY CONVERTING PARTICLES AND METHODS FOR THEIR USE IN SECURITY, ANTICOUNTERFEITING, AND ANTI-TAMPERING END-USES

Resumen de: US20260225394A1

A method for security marking of an article is provided. The method includes the step of providing a marking composition. The marking composition includes one or more energy converters which emit UV and/or visible light upon interaction with an applied external energy, and, optionally, a carrier. The marking composition is applied onto at least a part of a surface of the article.

SECURITY ELEMENT

Resumen de: US20260225393A1

There is provided a security element, comprising: an optic layer; a metallic layer; and a printed magnetic ink layer. The security element optionally comprises a photoluminescent layer. Also provided is a security document comprising the security element and a substrate, wherein the security element is surface applied, or partially or wholly embedded in the substrate. The security element may provide enhanced anti-counterfeiting protection to security documents such as banknotes.

SECURITY FEATURE, VALUE DOCUMENT, AND PRINTING INK

Nº publicación: EP4784699A1 05/08/2026

Solicitante:

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH [DE]
Giesecke+Devrient Currency Technology GmbH

Resumen de: WO2025067593A1

The invention relates to a security feature for safeguarding a value document, comprising a luminescent substance based on an inorganic host lattice, which is doped with Mn(V) as a luminophore, according to one of the formulas (I), (II), (III) or (IV): A5(XO4)3Hal:Doty (I), A2XO4Hal:Doty (II), A3(XO4)2:Doty (III), EZO4:Doty (IV), wherein y indicates the degree of doping of the luminophore and is selected from the range 0 < y < 0.1, and the elements for the host lattice and dopants are selected from the following list: A = Ca, Sr, Ba and the mixtures thereof; E = Sr, Ba and the mixtures thereof; X = P, V, As and the mixtures thereof; Z = S, Se and the mixtures thereof; Hal = F, CI and the mixtures thereof; and Dot = Mn(V).