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46
results.
Updated on
20/12/2024 [09:47:00]
Absstract of: US2024418691A1
This application relates to a time-temperature indicator based on increased thermal reactivity of diacetylene upon melt recrystallization and a method of making it. A diacetylene is crystallized into a low thermal reactivity phase from a solvent system and converted into a higher thermal reactivity phase and low sensitivity to UV light by melt recrystallization.
Absstract of: US2024416672A1
Examples include a security document having a substrate with a transparent window. In the region of the transparent window, a micro-optical structure including microlenses is arranged on one side of the substrate and a first print image is arranged on the other side of the substrate, opposite the micro-optical structure. A layer covers at least a section of the first print image. The layer allows electromagnetic radiation having a wavelength in the range of 380 nm to 780 nm to pass with a transparency in a range between 10% and 90%. The transparency gradually varies over a planar extension of the layer. A second print image is arranged on the layer in such a way that the second print image, or at least a piece of information contained therein, can be brought into alignment with the micro-optical structure after carrying out a folding process and becomes visible and/or recognizable.
Absstract of: US2024417579A1
A printed fabric for assessing authenticity, the printed fabric having a fabric and a print layer located on the fabric, wherein: the smoothness of the fabric, as measured through the smoothness testing method disclosed in JIS P 8155:2010, is 0.5 seconds or greater, and a printed portion of the print layer contains an inorganic infrared-absorbing pigment in an amount ranging from 5 mg/m2 to 400 mg/m2 inclusive per unit area.
Absstract of: US2024416644A1
Examples include a printing machine for producing a security document. The printing machine includes an impression cylinder for guiding a substrate of the security document and a transfer cylinder cooperating with the impression cylinder at a transfer point for printing a print image onto the substrate. The substrate includes a transparent window with a micro-optical structure composed of microlenses disposed on one side of the substrate in the region of the transparent window and opposite to the side of the substrate with the print image. A printing device applies a layer that covers the print image and is of a lighter hue than a hue of the print image. The impression cylinder includes an embossing device around a circumference thereof. The embossing device creates the micro-optical structure of the microlenses during rotation of the impression cylinder on the substrate in a contactless manner by molding using an injection embossing method.
Absstract of: EP4477426A1
The present invention refers to a structure for a security document, which comprises a first layer comprising a user identification area for forming an image of a user, and a second layer including a photochromic ink area comprising photochromic ink, wherein the photochromic ink area is placed in correspondence with the user identification area. The present invention further refers to a security document comprising the laminated structure obtained from the disclosed structure.
Absstract of: WO2024250495A1
The present invention belongs to the technical field of printing materials. Disclosed are a water-based ink and a preparation method therefor. The water-based ink disclosed in the present invention comprises a main material and an auxiliary material at a mass ratio of 1:(2-3). The main material comprises the following raw material components in parts by weight: 0.2-0.8 parts of ferric nitrate, 2-6 parts of a graphene powder, 5-7 parts of sodium citrate trihydrate, 6-10 parts of urea, and 16-22 parts of polyoxyethylene-8-octyl phenyl ether. The auxiliary material comprises the following raw material components in parts by weight: 20-40 parts of ethanol, 5-10 parts of chlorosulfonic acid, 2-8 parts of Tween 20, and 3-5 parts of sodium hydroxide. The water-based ink of the present invention has the characteristic of yellow fluorescence, has good viscosity, adhesive force and hardness, and can be used as an anti-counterfeiting identification material for use on an anti-counterfeiting package of a product.
Absstract of: WO2024252867A1
An identification element according to one aspect of the present disclosure comprises a heat-sensitive recording medium in which one or a plurality of layers are provided on a support base material. At least a part of the heat-sensitive recording medium is provided with an identification region having a unique physical feature.
Absstract of: WO2024251325A1
The present document discloses a process for producing effect pigments (2). Said process comprises the steps of: Providing a donor film (8) having a relief structure (12) arranged thereupon comprising plateau surfaces (12a), lowered regions (12c) and flanks (12b) situated therebetween. Applying a reflective layer (16) to the relief structure (12). Providing an acceptor film (4) having an adhesive layer (6) arranged on one side thereof. Producing a first layer composite (1) from the donor film (8) and the acceptor film (4), wherein the adhesive layer (6) of the acceptor film (4) is laminated with the reflective layer (16) of the donor film (8) in the plateau surfaces (12a). Peeling off the donor film (8) from the acceptor film (4), wherein the reflective layer (16) remains on the donor film (8) in the lowered regions (12c) and on the flanks (12b) as a residual layer (26) and the acceptor film (4) has arranged on it the adhesive layer (6) and the pieces (25) of the reflective layer (16) previously arranged on the plateau surfaces (12a), and detaching the pieces (25) from the acceptor film (4), wherein an external contour of the effect pigments (2) is predetermined by the configuration of the plateau surfaces (12a). In the process the relief structure (12) is subjected to adhesion-reducing pretreatment before the whole-area application of the reflective layer (16) and the detaching of the pieces (25) as effect pigments (2) from the acceptor film (4) comprises a detaching or loos
Absstract of: DE102023114955A1
Es ist ein Verfahren zur Herstellung von Effektpigmenten (2) offenbart. Es umfasst die Schritte: Bereitstellen einer Donorfolie (8) mit einer darauf angeordneten Reliefstruktur (12) mit Plateauflächen (12a), abgesenkten Bereichen (12c) und dazwischenliegenden Flanken (12b). Aufbringen einer Reflexionsschicht (16) auf die Reliefstruktur (12). Bereitstellen einer Akzeptorfolie (4) mit einer darauf einseitig angeordneten Klebeschicht (6). Erzeugen eines ersten Schichtverbunds (1) aus der Donorfolie (8) und der Akzeptorfolie (4), wobei die Klebeschicht (6) der Akzeptorfolie (4) mit der Reflexionsschicht (16) der Donorfolie (8) in den Plateauflächen (12a) kaschiert wird. Abziehen der Donorfolie (8) von der Akzeptorfolie (4), wobei auf der Donorfolie (8) die Reflexionsschicht (16) in den abgesenkten Bereichen (12c) und an den Flanken (12b) verbleibt als Restschicht (26 verbleibt, und sich auf der Akzeptorfolie (4) die Klebeschicht (6) und die zuvor auf den Plateauflächen (12a) angeordneten Teilstücke (25) der Reflexionsschicht (16) befinden, und Ablösen der Teilstücke (25) von der Akzeptorfolie (4), wobei eine Außenkontur der Effektpigmente (2) durch die Ausgestaltung der Plateauflächen (12a) vorbestimmt ist. Im Verfahren wird die Reliefstruktur (12) vor der vollflächigen Aufbringung der Reflexionsschicht (16) haftmindernd vorbehandelt und das Ablösen der Teilstücke (25) als Effektpigmente (2) von der Akzeptorfolie (4) umfasst ein Ab- oder Anlösen der Klebeschicht (6) o
Absstract of: US2024399782A1
A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.
Absstract of: EP4470790A1
Die Erfindung betrifft eine Druckplattenkombination (100) aus einer belichteten ersten Druckplatte (102) und mindestens einer belichteten zweiten Druckplatte (104), wobei die Belichtung der Druckplatten (102, 104) einem einzigen gemeinsamen Druckraster (200) zugrunde liegt, der aus in Rasterzellen unterteilten Rasterelementen (106) besteht, deren Mittelpunkte über die Rasterzellen (106) gleichverteilt sind, so dass der Abstand der Mittelpunkte benachbarter Rasterelemente (106) konstant ist, wobei sich einzelne Rasterelemente (106) des Druckrasters (200) auf der ersten Druckplatte (102) befinden, die auf der mindestens einen zweiten Druckplatte (104) nicht vorhanden sind, und wobei sich einzelne Rasterelemente (106) auf der mindestens einen zweiten Druckplatte (104) befinden, die auf der ersten Druckplatte (102) nicht vorhanden sind. Die Erfindung betrifft außerdem ein Verfahren zum Herstellen einer solchen Druckplattenkombination (100), einen Sicherheitsdruck (300) mit einer solchen Druckplattenkombination (100), ein Ausweis-, Wert- oder Sicherheitsdokument mit einem solchen Sicherheitsdruck (300) und ein Verfahren zum Anfertigen eines solchen Sicherheitsdrucks (300). Die Erfindung betrifft zudem ein Verfahren zur Verifikation des Sicherheitsdrucks (300).
Absstract of: US2024391271A1
A method for producing a data carrier includes a luminescent security element having at least two subregions, which at least do not completely overlap one another.
Absstract of: CO2023017147A1
Método para registrar una matriz de subpíxeles dispuestos dentro de un documento de seguridad, estando cada uno de los subpíxeles asociados con un color y una posición de destino, el documento comprende además marcas de registro dispuestas alrededor o dentro de la matriz de subpíxeles (SP), el método comprende: a - obtener la posición dentro del documento de las marcas de registro (MR), b - determinar una posición intermedia (PI) ubicada entre por lo menos dos posiciones de marcas de matrícula obtenidas y adyacentes, c - determinar la posición (SPI) del subpíxel asociado con un color de interés más cercano a la posición intermedia, d - determinar un conjunto de parámetros de curvas de interpolación que pasan por las posiciones de las marcas de registro y por la posición de dicho subpíxel asociado al color de interés (SPI), e - registrar la matriz.
Absstract of: US2024393513A1
The invention refers to a color holographic foil for protection of goods and documents from forgery and falsification. It includes successively placed foil base (1), release layer (2), embossing layer (3), reflective layer (4) and adhesive layer (5). The embossing layer comprises smooth areas (6) and micro-relief areas (7). The thickness of the optical reflective layer (4) is inversely proportional to the depth of the depressions in the micro-relief areas. At least two of the micro-relief areas are dyed areas (10) with embossing layer colored with a dye in different saturations of a single color tone. The saturation is directly proportional to the depth of the depressions. At least one dyed area is a multi-bonded area (11), having at least one micro-relief boundary (12) and at least one smooth boundary (13). The topography of the micro-relief in said multi-bonded areas is different from the topography of the neighbouring dyed areas.
Absstract of: GB2630437A
A method of manufacturing a lottery ticket 300 comprises: printing a variable indica 305 on a first area of a substrate, the variable indica having a component colour printing error 302,303; and printing a background 301 on a second area of the substrate, the background having the same colour component printing error. The background has an additional component colour not present in the variable indicia. A lottery ticket formed by the method includes a scratch off coating covering the variable indicia. The printing method ensures that any printing defects present in the variable indicia also occur in the background on the lottery ticket. By ensuring that random printing defects in the variable indicia also appear in the same lottery ticket background, detection of the printing defects becomes more readily apparent.
Absstract of: WO2024235461A1
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.
Absstract of: DE102023112927A1
Die Erfindung betrifft eine Druckplattenkombination (100) aus einer belichteten ersten Druckplatte (102) und mindestens einer belichteten zweiten Druckplatte (104), wobei die Belichtung der Druckplatten (102, 104) einem einzigen gemeinsamen Druckraster (200) zugrunde liegt, der aus in Rasterzellen unterteilten Rasterelementen (106) besteht, deren Mittelpunkte über die Rasterzellen (106) gleichverteilt sind, so dass der Abstand der Mittelpunkte benachbarter Rasterelemente (106) konstant ist, wobei sich einzelne Rasterelemente (106) des Druckrasters (200) auf der ersten Druckplatte (102) befinden, die auf der mindestens einen zweiten Druckplatte (104) nicht vorhanden sind, und wobei sich einzelne Rasterelemente (106) auf der mindestens einen zweiten Druckplatte (104) befinden, die auf der ersten Druckplatte (102) nicht vorhanden sind. Die Erfindung betrifft außerdem ein Verfahren zum Herstellen einer solchen Druckplattenkombination (100), einen Sicherheitsdruck (300) mit einer solchen Druckplattenkombination (100), ein Ausweis-, Wert- oder Sicherheitsdokument mit einem solchen Sicherheitsdruck (300) und ein Verfahren zum Anfertigen eines solchen Sicherheitsdrucks (300). Die Erfindung betrifft zudem ein Verfahren zur Verifikation des Sicherheitsdrucks (300).
Absstract of: US2024386447A1
The present invention relates to a label (1, 1′, 1″, 1′″) for verifying authenticity of items, the label (1, 1′, 1″, 1′″) being configured to be attached to items and comprising a plurality of focusing micro-optical elements (3) and a micropartide layer (5) comprising a plurality of luminescent and/or scattering microparticles (7), wherein the plurality of focusing micro-optical elements (3) and the microparticle layer (5) are arranged so that at least a part of light emitted and/or scattered from the plurality of luminescent and/or scattering microparticles (7) reaches the plurality of focusing micro-optical elements (3).
Absstract of: WO2024235464A1
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. The protrusion height is 2 µm to 13 µm. The base sheet can have a laser engraved image.
Absstract of: WO2024038086A1
A method for generating at least one security feature on a banknote or a tax stamp, comprising: i) providing a substrate sheet in form of a sheet of paper or of a polymer foil or a composite, ii) printing onto at least one of the two surfaces of the substrate sheet at least one printing ink layer, extending over at least part of the substrate sheet, and wherein the printing ink comprises: a) at least one pigment and/or b) one dye, which changes its luminescence and/or its infrared absorption intensity upon exposition to laser radiation so that the integral of the emission curve obtained after excitation of the at least such pigment /dye after step iv) is at least 10% lower than the the corresponding one before step iv) iii) curing the printing ink layers, iv) exposing the printed substrate before, during and/or after the curing step iii) to laser radiation so as to create at least one security feature on the at least one banknote of the printed substrate sheet.
Absstract of: WO2023135029A1
The invention relates to an optically variable security element for protecting information carriers (1), comprising at least two luminescent dyes (F) which cover, at least in some regions, one and/or two sides of a planar substrate. The at least two luminescent dyes (F) comprise a fluorescent dye and a phosphorescent dye, wherein preferably the at least two luminescent dyes (F), preferably the fluorescent dye and the phosphorescent dye, are superimposed on one another, at least in some regions, in order to produce a mixed colour by luminescence. The invention further relates to a method for authenticating an information carrier (1) protected by means of an optically variable security element (10).
Absstract of: EP4464517A1
Disclosed is a method for producing an anti-counterfeiting label, the method comprising a laser printing method comprising: providing a donor material (102), the donor material (102) comprising a precursor (106) on a first side of the donor material (102), wherein the precursor (106) is a carbon-based chemical compound; providing an acceptor material (112), wherein an acceptor side of the acceptor material (112) is arranged adjacent to the first side of the donor material (102); annealing the precursor (106) by a laser (108), wherein the laser (108) is controlled with laser parameters adjusted to convert the precursor (106) to solid-state fluorescent carbon nanodots; and removing the donor material (102) to receive the solid-state fluorescent carbon nanodot-based anti-counterfeiting label on the acceptor side of the acceptor material (112).
Absstract of: EP4464515A1
A method, apparatus and system for rendering a security mark, can involve providing two variable layers of data text for a security mark including a first variable layer and a second variable layer, and applying the security mark to a recording medium using the two variable layers to create a third variable layer of the security mark. The second variable layer can be applied out of phase or orthogonally from the first variable layer at the same frequency, which can form the third variable layer with data text that is decodable. The third variable layer with the data text can be decodable with a decoding screen. In addition, the first, second, and third variable layers can share the same area. The security mark may comprise a correlation mark.
Absstract of: AU2023273118A1
The invention relates to a value document (1), such as a bank note, a cheque, a credit card or other payment card, an identity card or the like, which has a front side and a rear side. The value document (1) features, when looked through, a first transparent image that is visible to the unaided eye and has specific dimensions (L, B) when viewed from above. The value document (1) has a substrate body (2) which, when viewed from above, has the specific dimensions (L, B) and is connected to a first transparent film (18), which has an inner side and an outer side, in such a way that the substrate body (2) bears against the inner side of the first transparent film (18) so that the substrate body (2) faces the rear side and the outer side of the first transparent film (18) faces the front side. The first transparent film (18) also has the specific dimensions (L, B) when viewed from above, and the first transparent image that is visible when looked through is produced by a first metallised and/or printed structure which is located on the inner side of the first transparent film (18). The first metallised and/or printed structure is covered with a translucent colour layer.
Nº publicación: US2024376374A1 14/11/2024
Applicant:
UIF UNIV INDUSTRY FOUNDATION YONSEI UNIV [KR]
UIF (University Industry Foundation), Yonsei University
Absstract of: US2024376374A1
Proposed is a dual-light-emitting material that includes a porous framework composed of a metal ion and an organic ligand, an insert body placed in a cavity of the porous framework, and a nanocrystal containing the metal ion of the porous framework, wherein the organic ligand is configured to emit room-temperature organic phosphorescence (RT-OP) and the nanocrystal is configured to emit fluorescence.
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