Security measures

SECURITY DEVICES AND METHODS OF MANUFACTURE THEREOF

Absstract of: 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

Absstract of: 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.

SEALING MARK, A PACKAGE, AND METHODS

Absstract of: 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

Absstract of: 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.

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

Absstract of: 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.

SECURITY FEATURE

Absstract of: 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.

SECURITY ELEMENT

Absstract of: 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.

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

Absstract of: 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

Absstract of: 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.

AUTHENTICATION DEVICE

Absstract of: 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

Absstract of: 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

Absstract of: 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.

SECURITY FEATURE, VALUE DOCUMENT, AND PRINTING INK

Absstract of: 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).

SECURITY ELEMENT, VALUABLE DOCUMENT AND METHOD FOR PRODUCING A SECURITY ELEMENT

Absstract of: EP4786202A1

0001 Die Erfindung betrifft ein Sicherheitselement zur Herstellung von Wertdokumenten, wie Banknoten, Schecks oder dergleichen, das eine Vorderseite (2) und eine Rückseite hat, und einen Substratkörper (42) aufweist, welcher auf seiner Oberfläche einen ersten Teilbereich (10), der erste Pigmente (46) umfasst, und einen zweiten Teilbereich (12), der zweite Pigmente (50) umfasst. Die Teilbereiche (10, 12) zeigen im sichtbaren Spektralbereich in Draufsicht und/oder Transmission mindestens eine Farbe. Die ersten Pigmente (46) weisen eine erste Gitterstruktur (55, 68) mit darauf befindlicher Reflektorschicht (74, 82) auf, wobei die erste Gitterstruktur (55, 68) im ersten Teilbereich (10) einheitlich ausgebildet ist, und die zweiten Pigmente (50) weisen eine andere, zweite Gitterstruktur (55, 68) mit darauf befindlicher Reflektorschicht (74, 82) auf, wobei die zweite Gitterstruktur (55, 68) im zweiten Teilbereich (12) einheitlich ausgebildet ist. Die erste Gitterstruktur (55, 68) der ersten Pigmente (46) im ersten Teilbereich (10) unterscheidet sich von der zweiten Gitterstruktur (55, 68) der zweiten Pigmente (50) im zweiten Teilbereich (12) in mindestens einem Gitterstrukturparameter (h, d) so, dass die Teilbereiche (10, 12) sich im sichtbaren Spektralbereich hinsichtlich der mindestens einen Farbe nicht unterscheiden, im nahen Infrarotbereich hinsichtlich ihrer Absorption und/oder Reflexion aber unterschiedlich sind.

LABEL WITH PROTECTION AGAINST FORGERY

Absstract of: WO2025068047A1

A label (1) with protection against forgery comprises an unclonable security feature (10) and a hidden code (20). The hidden code (20) contains data describing the security feature (10). The data are coded in the hidden code in the form of characters (21). As a result, the characteristic properties of the security feature (10) are directly stored on the label (1), with the result that it is not necessary to access a database in order to authenticate the security feature (10). The characters (21) may be arranged on a substrate (30) with a covering layer (60) above which is opaque when illuminated with light in the visible spectrum and transparent when illuminated with light in at least one part of the invisible spectrum (for example transparent and readable with an infrared camera in the infrared spectral range), or which becomes transparent when heated above a temperature threshold value (for example made of thermochromic inks).

SECURITY ELEMENT WITH COMBINATION SECURITY FEATURE

Absstract of: WO2025067976A1

The invention relates to a security element for safeguarding security papers, value documents, and other data carriers using a combination security feature (16) which contains a colored image motif, wherein - the combination security feature (16) displays a first image motif with a 2D or 3D appearance under normal illumination using visible light (20) and - under hybrid illumination using visible light (20) and UV light (22), displays a second image motif with a 3D appearance. The combination security feature (16) has a body color layer (32, 34) with at least one visually visible body color in order to produce the first image motif and at least one luminescent color layer (36) arranged above and/or below the body color layer (32, 34), said luminescent color layer, together with the body color layer (32, 34), producing the second image motif upon being excited with UV light.

SECURITY ELEMENT WITH A LUMINESCENT SECURITY FEATURE

Absstract of: WO2025067985A1

The invention relates to a security element (14) for safeguarding security papers, value documents, and other data carriers using a luminescent security feature. According to the invention, the luminescent security feature contains a luminescent iris printing (34) with a color gradient between at least two different luminescent shades.

SECURITY FEATURE, VALUE DOCUMENT, AND PRINTING INK

Absstract of: WO2025067598A1

The invention relates to a security feature for safeguarding a value document. The security feature is formed on the basis of a luminescent substance which, in its pure form, has a different excitation behavior than in a diluted form when used in the value document, and the luminescent substance is based on an inorganic host lattice, which is doped with Mn(V) as a luminophore. The proportion of the Mn(V) substance in the luminescent substance is less than 2%, and the host lattice of the luminescent substance is selected from apatites of the type A5(PO4)3Z, spodiosites of the type A2PO4Z, and phosphates of the type A3(PO4)2, wherein A = Ca, Sr, Ba and the mixtures thereof and Z = F, CI, OH and the mixtures.

OPACIFYING SYSTEMS FOR POLYMERIC TRANSPARENT SUBSTRATES

Absstract of: AU2023477578A1

The present technology relates to the field of improved opacified polymeric transparent substrates (x00) for use in making security documents such as banknotes, said substrates (x00) combining good mechanical performance and that can be easily handled for subsequent multi-step security printing processes. In particular, kits are provided for manufacturing an opacifying system (x10) either on one side or on both sides of a polymeric transparent substrate (xx0) , said kit comprising a) a first composition for manufacturing an opacifying layer (x11) , b) a second composition for manufacturing a conductive layer (x12) , and c) a third layer composition for manufacturing an acceptance layer (x13) , wherein the first, second and third compositions comprises i) water, ii) a water-soluble or water-dispersible resin, iii) a white pigment, iv) a wax, wherein at least one of the first, second and third compositions comprises an anti-static agent, and wherein at least two of said first, second and third compositions comprise a mica compound.

METHOD FOR PRODUCING A SECURITY ELEMENT HAVING A RELIEF STRUCTURE AND SECURITY ELEMENT HAVING A RELIEF STRUCTURE

Absstract of: WO2025061847A1

The invention relates to a method for producing a security element (4) comprising the following steps: providing a UV-embossing lacquer layer (8) and embossing a relief structure (9) and hardening the UV-embossing lacquer layer (8); printing a lacquer as a primer on the relief structure (9) and drying the lacquer, wherein the dried primer has a layer thickness of a maximum of 2 µm; and depositing by PVD of a ZnS layer (12) of a maximum thickness of 1 µm to cover the dried primer layer (10).

XANTHENE COMPOUNDS HAVING A WAVELENGTH IN THE RANGE FROM 650 TO 1200 NM

Absstract of: US20260209251A1

0000 The present invention relates to compounds of the formula 0000 0000 a process for its preparation and its use as compound that absorbs light emitted from an irradiation source and optionally emits light different from that of the irradiation source and having a wavelength in the range from 650 to 1200 nm; in photovoltaic applications; or in bioimaging, or in photodynamic therapy; or as semiconductor in organic electronic applications; as laser dye, in an ink for machine readability and/or security applications or for the laser-welding of plastics; or for brand protection or as marker for liquids. The compounds of formula (I) may have a high molar extinction coefficient, a high fluorescence quantum yield, a high solubility and stability in the application medium, good storage stability and/or good detectability even in very small amounts in correspondingly marked liquids.

GENERATING UNIQUE IDENTIFIERS FROM A COLLECTION OF PARTICLES

Absstract of: WO2025059631A1

In a general aspect, a unique marker includes a plurality of particles. In some cases, the particles are distributed (e.g., fixed) on a surface, and a unique code can be generated based on the spatial properties (e.g., relative positions and relative orientations) of the projection of these particles onto a plane. A computing system may generate the unique code, and the spatial properties may be determined from data obtained by a camera or another type of optical detector.

Methods of Printing Document Markings with Enhanced Visual Effects, and Documents that Exhibit Such Effects

Absstract of: US20260200258A1

Embodiments disclosed include a monochromatic pattern mark that includes multiple sets of pattern ink segments that cause a substrate to exhibit an enhanced moiré effect. A first set of the pattern ink segments includes a solid center line that is black; a first outer line that is dashed, grey, and adjacent to a first side of the center line; and a second outer line that is dashed, grey, and adjacent to a second side of the center line. Each of the first and second outer lines has a color value of less than approximately 100% K. In other embodiments, the mark may or may not be monochromatic, but it also functions as a correlation mark.

Optisch variables Sicherheitselement, Wertdokument und Herstellungsverfahren

Absstract of: DE102025101525A1

Es ist ein Optisch variables Sicherheitselement zur Absicherung von Sicherheitspapieren, Wertdokumenten und anderen Wertgegenständen offenbart, das einen Substratkörper (2), der eine Vorderseite (4) und eine Rückseite (6) hat, und eine Druckschicht (8), die auf die Vorderseite (4) des Substratkörpers (2) aufgebracht ist und erste Pigmente (10) enthält, aufweist. Die ersten Pigmente (10) weisen jeweils einen Mehrschichtaufbau umfassend eine Reflektorschicht, eine Absorberschicht und eine dielektrische Abstandsschicht, die zwischen der Reflektorschicht und der Absorberschicht angeordnet ist, auf, der so ausgebildet ist, dass er einen ersten Farbkippeffekt mit einer ersten Farbe in einem ersten Betrachtungswinkelbereich und einer anderen, zweiten Farbe in einem zweiten Betrachtungswinkelbereich erzeugt. Die Druckschicht (8) enthält eine Vielzahl von zweiten, unterschiedlichen Pigmenten (12), die einen zweiten Farbkippeffekt dadurch erzeugen, dass sie im ersten Betrachtungswinkelbereich transparent sind und im zweiten Betrachtungswinkelbereich eine Farbe aufweisen.

METHODS OF PRINTING DOCUMENT MARKINGS WITH ENHANCED MOIRÉ EFFECTS, AND DOCUMENTS THAT EXHIBIT SUCH EFFECTS

Nº publicación: US20260200259A1 16/07/2026

Applicant:

XEROX CORP [US]
Xerox Corporation

Absstract of: US20260200259A1

A substrate includes a mark that exhibits an enhanced moiré effect. In some embodiments, the mark includes: a checkered pattern comprising a first set of cells to be printed with a first color and a second set of cells to be printed with a second color; a first set of broken parallel lines of a third color to be printed along edges of the first set of cells and/or the second set of cells; and a set of frame elements of a fourth color, wherein each frame element is positioned to frame one of the two sets of cells.