Absstract of: US2024287281A1
The present invention relates to compositions, comprising(A) platelet-shaped transition metal particles, wherein the number mean diameter of the platelet-shaped transition metal particles, present in the composition, is in the range of from 15 nm to 1000 nm, the transition metal is selected from silver, copper, gold and palladium, especially silver and copper, very especially silver;(B) one, or more reactive diluents (B);(C) one, or more oligomers (C);(D) one, or more photoinitiators (D);(E) at least a surfactant (E), which is a block copolymer, comprising at least a block A and a block B, whereina) the block A comprisesa1) monomer units (A1) derived from a compound selected from alkyl (meth)acrylates, alkyl (meth)acrylamides, or any mixture thereof, anda2) monomer units (A2) derived from a hydroxy group, or ether group containing alkyl (meth)acrylate;b) the block B comprises monomer units (B) derived from a compound selected from fluorinated (meth)acrylic esters of formulaH2C═CR46(C(O)ORF-1) (XX), whereinR46 is H, or a methyl group; andRF-1 is an organic residue containing a perfluorinated alkyl group;(F) optionally one, or more polymeric binders;(F) optionally one, or more solvents; and(H) optionally further additives.The coatings, obtained with said compositions, show one color, when observed in transmission and another color, when observed in reflection on both sides of the cured coating.
Absstract of: US2024286429A1
A security feature is presented for a security or value document. The security feature comprises a zinc sulfide luminophore in the form of particles. The zinc sulfide luminophore has the general chemical formula ZnS:Cux, My, Xz; here, M represents one or more elements from a group comprising the chemical elements Co, In and Ni; X represents one or more elements from a group comprising the halides F, Cl, Br and I; and the following applies: 0<x<0.002 and 0::; y<0.00015 and 0::; z<0.00050. The particles each have cubic phase portions and hexagonal phase portions. When excited by an electrical field, the zinc sulfide luminophore emits a first radiation in the range of the light spectrum between 580 nm and 780 nm. When excited by heating the luminophore to a temperature between 100° C. and 150° C., the zinc sulfide luminophore emits a second radiation in the light spectrum.
Absstract of: WO2024177533A1
The group of inventions relates to the field of creating materials for use in protecting information carriers against counterfeit and reliably authenticating same. Proposed is a composite luminescent material consisting of at least two luminescent components that form an inseparable compound having a core-shell structure, or a laminar structure, or a xerogel structure. The luminescent components have different luminescence spectra within the spectral range of 370-780 nm and have the same or overlapping excitation spectra. The luminescence emission bands of the luminescent components have different afterglow durations that differ by at least 20%. A method for producing a luminescent material includes applying, to particles containing a first luminescent component, an intermediate layer of nano-sized spherical particles of silicon dioxide, and subsequently precipitating other luminescent components from a liquid phase onto the resulting surface over a set period of time. A second embodiment of the method includes producing a hydrogel, introducing luminescent components in a given concentration into said hydrogel, and subsequently removing the liquid phase. An information carrier has applied to the surface thereof or introduced into the composition thereof a protective marking that contains the claimed composite luminescent material. The technical result is that of enhancing the security of information carriers and enabling authentication thereof once in circulation by virtue of
Absstract of: WO2023067277A1
System for establishing and managing the certificate of ownership of an object (O) comprising: a central unit (1) and a marking unit (2); the marking unit (2) comprises an inkjet device (21) for marking with invisible ink, which is readable under a determined illumination, with a view to placing a mark (M) on the object (O). An image-capturing unit (22) allows the image of the location (IE) of the mark on the object to be taken, and object data (DO) comprising the mark (M) and the photo of its location (IE) to be formed; these data (DO) are transmitted to the central unit (1) with a view to generating the certificate of ownership (CP) associated with the object (O).
Absstract of: US2024278591A1
Forming a 3D image using a lenticular structure includes a carrier layer having an arrangement of color sub-pixels and a lenticular array comprising convergent lenses facing the sub-pixels. A method includes performing visual inspection of the lenticular structure, during which sub-pixels viewable through the lenses are detected for a plurality of viewing directions; determining, based on the color of the sub-pixels detected for each viewing direction, grayscale levels required to reveal M images viewable through the lenticular array in the M viewing directions, respectively; and customizing the sub-pixel arrangement, during which the grayscale levels are engraved facing the sub-pixels in the carrier layer by focus of laser radiation through the lenses.
Absstract of: US2024279486A1
The present invention provides an antifog-film-attached transparent article for security cameras that includes: a transparent base; and an antifog film on a surface of the transparent base, wherein the antifog film includes: at least one selected from the group consisting of a silane coupling agent and a cross-linked structure derived from the silane coupling agent; a water-absorbing polymer, a polyether-modified siloxane; and a C2-C8 diol.
Absstract of: WO2024165548A1
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.
Absstract of: US2024270009A1
The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides security documents and decorative articles comprising one or more optical effect layers (OELs) and methods for producing said OELs, said OELs comprising magnetically oriented platelet-shaped magnetic or magnetizable pigment particles in an at least partially cured coating layer (x40)
Absstract of: AU2023264184A1
The invention relates to a printing machine for producing a security document (02). A counter printing cylinder (42) which guides a substrate (26) of the security document (02) and a transfer cylinder (43) which interacts with the counter printing cylinder (42) at a transfer location and which prints a printed image (27) onto the substrate (26) are provided, wherein the substrate (26) has at least one transparent window (04), and a micro-optical structure (03) consisting of microlenses (11) is provided on one face of the substrate (26) at least in the region of the transparent window (04) in question. The counter printing cylinder (42) and the transfer cylinder (43) are arranged so as to interact such that the micro-optical structure (03) consisting of microlenses (11) is arranged on one face of the substrate (26) at least in the region of the transparent window (04) in question and the at least one printed image (27) is arranged on the other substrate (26) face lying opposite the micro-optical structure (03) at least in the region of the transparent window (04). The printed image (27) in question has a plurality of image elements (28a to 28j) in a punctiform or linear pattern, each image element having a color which differs from white. A printing device is provided that applies a laminar expanded layer (39) which covers the printed image (27) in question onto at least one section of the printed image (27) in question on the printed image face facing away from the micro-optic
Absstract of: WO2024165815A1
The invention relates to providing markers for identifying and/or authenticating objects, in particular valuable objects, and, more specifically, stable, effective, easily synthesised, economical, unforgeable markers that afford multiple, complex coding possibilities. The invention relates to particles (P), in particular particles suitable for marking, identifying and/or authenticating objects, in particular valuable objects, that are: - based on at least one polymer bearing chelating groups; - the largest dimension of which is between 0.1 and 1000 µm, preferably between 1 and 500 µm, even more preferably between 1 and 50 µm; and - to which are bonded at least one mineral marking element (M) and, optionally, at least one organic marking element (O); at least one portion of these one or more mineral marking elements (M) being chelated by the polymer. The invention also relates to a powder, a suspension or a composition comprising these particles P, and to a method for producing these particles.
Absstract of: AU2023264715A1
The invention relates to a security document (02) with a transparent window (04) which is formed in the security document substrate (26) and which comprises a micro-optical structure (03) consisting of microlenses (11). At least one printed image (27) is arranged on the other substrate (26) face lying opposite the micro-optical structure (03) at least in the region of the transparent window (04), wherein the printed image (27) in question has multiple image elements (28a to 28j) in a punctiform or linear pattern, and the pixel size (38) or the line thickness (38) of said image elements (28a to 28j) is designed to be smaller than the lens width (18) of the microlenses (11) arranged in the micro-optical structure (03) in each case. A laminar expanded layer (39) which covers the printed image (27) in question is arranged on at least one section of the printed image (27) in question on the printed image face facing away from the micro-optical structure (03). The layer (39) which covers the printed image (27) in question is produced in an inkjet printing method, and the layer (39) is designed to be transparent to an electromagnetic radiation with a wavelength ranging from 380 nm to 780 nm, the degree of transparency to said electromagnetic radiation ranging between 10% and 90%. The transparency is designed to vary gradually over the planar two-dimensional extension of the layer (39) covering the printed image (27) in question such that at least one location of the layer (39) or so
Absstract of: MX2024002204A
The present invention provides a photoluminescent security ink for continuous ink-jet printing, wherein said ink has a viscosity of about 1.5 mPas to about 6 mPas at 25 °C, and comprises: a) from about 4 wt-% to about 6 wt-% of uncapped NaX<sub>1-y-z</sub>F4Yb<sub>y</sub>Z<sub>z</sub> nanoparticles; b) from about 1.5 wt-% to about 10 wt-% of a dispersing agent; c) from about 80 wt-% to about 90 wt-% of an organic solvent; and d) from about 0.1 wt-% to about 1 wt-% of a conductive salt, as well as a process for producing said ink, and a process for manufacturing a photoluminescent security feature on an article, or a value document, with said ink.
Absstract of: FR3145564A1
L’invention vise à fournir des marqueurs pour l'identification et/ou l'authentification d’objets, notamment d'objets de valeur, et plus précisément des marqueurs, stables, efficaces, facilement synthétisables, économiques, infalsifiables et offrant des possibilités de codages multiples et complexes. L’invention concerne des particules (P) en particulier adaptées au marquage, à l'identification et/ou à l'authentification d'objets, notamment d'objets de valeur :- à base d’au moins un polymère porteur de groupements chélatants,- dont la plus grande dimension est comprise entre 0,1 et 1000 µm, de préférence entre 1 à 500 µm, encore plus préférentiellement entre 1 à 50 µm, et- auxquelles sont liés au moins un élément minéral de marquage (M) et éventuellement au moins un élément organique de marquage (O); au moins une partie de cet (ces) élément(s) minéral(aux) (M) de marquage étant chélatée par le polymère. L'invention concerne également une poudre, une suspension ou une composition comprenant ces particules P, ainsi qu'un procédé de fabrication de celles-ci.
Absstract of: US2024262124A1
Disclosed are optical devices suitable as security devices for document authentication, which comprise at least one two-dimensional array of elongate laser-modified tracks extending within a document substrate that have a distinct optical refractive index compared to the unmodified substrate, which can exhibit excellent diffractive effects. Also disclosed are the use of such devices for document authentication and methods for their production.
Absstract of: US2024263071A1
An infrared-excited infrared light emitting material and a preparation method thereof, and a security article for anti-counterfeit using thereof relate to a white to pale colored infrared-excited infrared light emitting material, a preparation method thereof, and an ink composition for anti-counterfeit containing the infrared exciting infrared light emitting material which visually appears white or colored, and is excited in the infrared region, emits light in the infrared region, but does not emit light in the visible region, and a security article requiring confirmation of authenticity and anti-counterfeit.
Absstract of: WO2024156315A1
The invention relates to a data carrier (10), in particular a value or security document, comprising: a substrate (12) which has at least one plastics layer; and a machine-readable security feature (52, 54). According to the invention, the machine-readable security feature (52, 54) comprises a machine-readable feature material which is present in an embedding layer applied to the substrate, specifically a white covering layer (30, 34), a functional layer (32, 36), a print-receiving layer and/or a varnish layer (40).
Absstract of: WO2024158807A2
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.
Absstract of: WO2024156314A1
The invention relates to a data carrier (10), in particular a value or security document, having a substrate (20) which comprises at least one transparent plastics layer and two opposing main surfaces. The data carrier additionally contains two opaque-white layers (22, 32) having a white, opaque appearance, which are applied to the opposing main surfaces of the substrate (20). Each of the opaque-white layers (22, 32) consists of a layer sequence of two or more partial layers (24a-c, 34a-c) extending from a lowermost white layer (24a, 34a) to an uppermost white layer (24c, 34c). The data carrier also contains a machine-readable security feature which comprises a machine-readable feature substance (38) which is present in at least one of the partial layers (24c) of at least one of the opaque-white layers (22, 32).
Absstract of: DE102023101915A1
Die Erfindung betrifft einen Datenträger (10) insbesondere ein Wert- oder Sicherheitsdokument, mit einem Substrat (12), das zumindest eine Kunststofflage umfasst, und mit einem maschinenlesbaren Sicherheitsmerkmal (52, 54). Erfindungsgemäß ist vorgesehen, dass das maschinenlesbare Sicherheitsmerkmal (52, 54) einen maschinenlesbaren Merkmalsstoff umfasst, der in einer auf dem Substrat aufgebrachten Einbettungsschicht, nämlich einer Deckweißschicht (30, 34), einer Funktionsschicht (32, 36), einer Druckannahmeschicht und/ oder einer Lackierungsschicht (40) vorliegt.
Absstract of: US2024253387A1
Environmental monitors for monitoring a predetermined environmental exposure, for example, an historical heat exposure such as a cumulative ambient heat exposure and/or a peak ambient heat exposure may include an environmental indicator material and a security material. The environmental monitor may be configured to attach to a host product for monitoring the predetermined environmental exposure of the host product, and additionally serve as an anti-counterfeiting indicator.
Absstract of: DE102023101913A1
Die Erfindung betrifft einen Datenträger (10), insbesondere ein Wert- oder Sicherheitsdokument, mit einem Substrat (20), das zumindest eine transparente Kunststofflage umfasst und zwei gegenüberliegende Hauptflächen aufweist. Der Datenträger enthält zudem zwei Deckweißschichten (22, 32) mit einem weißen, opaken Erscheinungsbild, die auf die gegenüberliegenden Hauptflächen des Substrats (20) aufgebracht sind. Jede der Deckweißschichten (22, 32) besteht aus einer Schichtfolge aus zwei oder mehr Teilschichten (24a-c, 34a-c), die von einer untersten weißen Schicht (24a, 34a) bis zu einer obersten weißen Schicht (24c, 34c) reicht. Das Datenträger enthält auch ein maschinenlesbares Sicherheitsmerkmal, das einen maschinenlesbaren Merkmalsstoff (38) umfasst, der in zumindest einer der Teilschichten (24c) zumindest einer der Deckweißschichten (22, 32) vorliegt.
Absstract of: AU2022421462A1
The invention relates to a security marking printed via intaglio process, corresponding engraved intaglio printing plate, and methods and devices for producing, encoding/decoding and authenticating said security marking. The security marking comprising multitone 2D intaglio patterns of intaglio modules containing encoded data according to specific encoding symbols, the decoding of which, together with measured tone values for tiny shifts around their positions at decoding stage on a digital image of said intaglio patterns in correlation with said symbols, provides a robust and precise estimation of a register error between modules of distinct tones, thus allowing to easily detect any fake marking obtained via offset printing, even with a smartphone.
Absstract of: AU2024204893A1
Abstract Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses. 12158540_1 (GHMatters) P113159.AU
Absstract of: US2024253384A1
A security document includes a security feature with a hologram and a color image arranged on top of each other. Holographic features of the hologram are visible when the security document is viewed under white light, and a plurality of image features of the color image are visible when the document is viewed under UV light. The image features are perfectly aligned with the holographic features. This can be achieved, for example, by providing one or more registration marks when forming the holographic features, and using said registration marks to later print the color image. Another possibility is to use the structure of the hologram to selectively apply two or more UV-sensitive ink materials onto the hologram to automatically align the same with the holographic features.
Nº publicación: US2024253386A1 01/08/2024
Applicant:
DBP COMMUNICATIONS INC [US]
DBP Communications, Inc
Absstract of: US2024253386A1
A security document comprises a document substrate and a pattern of repeated geometric shapes printed on the document substrate. The pattern of repeated geometric shapes comprises a first set of the geometric shapes printed using a reactive ink and a second set of the geometric shapes printed using a non-reactive ink. The geometric shapes fit closely together without substantial overlaps. In addition, a visual appearance of the reactive ink is substantially similar to a visual appearance of the non-reactive ink. The first set of geometric shapes or the second set of geometric shapes are arranged together to form one or more hidden symbols, pantographs or messages. A method of printing the security document is also disclosed.