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193
results.
Updated on
15/11/2026 [08:21:00]
Results 25 to 50 of 193
Absstract of: EP4821701A1
0001 The invention relates to a security element in the form of a laminated layered system in which, owing to an appropriate selection of layers, a relief effect not perceptible to the touch is obtained. The invention also relates to a method for manufacturing such a security element and to the use thereof for protecting documents of value in the form of cards, such as identity documents, bank cards, credit cards, identification cards or microprocessor cards, as well as for use as components of booklet-type documents, for example polymeric pages for passports.
Absstract of: US20260307424A1
0000 A security element for a value document, wherein the security element includes: an optically variable primary surface pattern that has a metal layer with a relief structure; and at least one concealed secondary surface pattern having a plurality of elements that perforate the metal layer and at least one luminescence layer that is arranged at least in the region of the secondary surface pattern.
Absstract of: US20260307421A1
An identification element according to an aspect of the present disclosure includes a thermosensitive recording medium provided with one or a plurality of layers on a support substrate. An identification region having a unique physical feature is provided in at least a portion of the thermosensitive recording medium.
Absstract of: WO2026213238A2
The compositions and methods described herein relate to authentication using Sid4CID substances—customized stable isotopes, rare earth elements, and precision-engineered compounds—optionally combined with CLR colorants formulated from diverse molecular combinations. These traceable taggants are incorporated at trace-level concentrations through various application modalities and integrated pathways into commercial materials or coatings. CLR compounds encompass a diverse spectrum of engineered colorant systems, designed to maintain detectability and functional integrity across varied chemical environments and coating architectures. The incorporation of taggants enables detection through a range of analytical technologies, spanning non-destructive field instruments and advanced laboratory-based assays. The system supports anomaly detection, digital governance, and blockchain-based traceability through structured APIs and secure platforms. Sid4CID-CLR materials and coatings function as covert markers for identity, provenance, and anti-counterfeiting, enhancing compliance and intellectual property protection across commercial domains.
Absstract of: US20260307149A1
0000 The present invention relates to compositions, comprising silver nanoplatelets, wherein the silver nanoplatelets are capped by a compound of formula
0000
0000 wherein R<41 >is a C<4>-C<25>alkyl group, which may be interrupted by one, or more oxygen atoms, and n is a number 1 to 10, especially 1 to 4, very especially 1, or 2, a process for its production, printing inks containing the compositions and their use in security products. The capping with the compound of formula (XX) renders the surface on the nanoparticles more hydrophobic, while maintaining colloidal stability of their dispersions in organic solvents and/or monomer compositions. This combination of properties allows for production of stable UV curable coating/printing compositions, suitable for manufacture of dichroic security elements for protection of value documents. The surface modification, described in the present invention is suitable for silver nanoplatelets of different sizes and, correspondingly, colors, and is especially useful for manufacture of solvent-free coating, or printing compositions.
Absstract of: WO2026209702A1
It is disclosed a security element for protecting valuables. The security element comprises a substantially flat substrate (2) having a surface defining a basic plane, and a printed layer (4) which is applied to the surface of the substrate (2) and comprises pigments (6, 8, 28) for generating a color-shift under white light illumination. The pigments (6, 8; 28) comprise at least one first dielectric layer (18) and at least one second dielectric layer (22) each as a spacer between two layers (14, 16), wherein the first (18) and second dielectric layers (22) have different layer thicknesses, the layer thickness of the first dielectric layer (18) is selected such that the pigments (6, 8, 28) are configured to generate a short wavelength color in reflection at a normal viewing angle (24) normal to the basic plane and under white light illumination, and the layer thickness of the second dielectric layer (22) is selected such that the pigments (6, 8, 28) are configured to generate a long wavelength color in reflection at an oblique viewing angle (26) of 60° relative to the normal of the basic plane and under the white light illumination.
Absstract of: AU2025229547A1
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 processes for producing optical effect layers (OELs) comprising at least a first motif and a second motif, each of said motifs independently comprising platelet-shaped magnetic or magnetizable pigment particles.
Absstract of: US20260306937A1
A printed security-enhanced document, printing method, and system for ensuring that any printing defects present in the variable indicia also occur in the background on the document protected. By ensuring that random printing defects in the variable indicia also appear in the same document's background, detection of the printing defects becomes more readily apparent.
Absstract of: US20260307420A1
0000 A substrate is printed with front side markings and back side markings. The front side when viewed with reflected light includes a first marking printed with a first ink color in a first saturation and a first symbol with the first ink color. The back side when viewed with reflected light includes a second marking printed with a second ink color in a second saturation and a second symbol printed with the first ink color. When viewed with transmitted light, the first marking and the second marking are printed to provide an interlocking pattern, and the first symbol and the second symbol are visible in the first ink color and visually and/or spatially complementary to produce a composite image, wherein the first symbol and the second symbol are visually indistinguishable.
Absstract of: WO2026212386A1
The present invention relates to an ultraviolet contrast identification sheet comprising: an ultraviolet absorption layer containing an ultraviolet absorber; and an ultraviolet scattering or reflecting agent pattern, and thus the present invention appears transparent to the naked eye but exhibits a distinct black-and-white contrast when observed with an ultraviolet blocking inspection device such that a product can be easily authenticated.
Absstract of: FR3173515A1
Selon un premier aspect, l’invention concerne un procédé de fabrication d'un film de sécurité configuré pour la fabrication de documents de sécurité. Le procédé comprend la fourniture (S10) d'un substrat polymère; l’application (S20) d’au moins une première couche en matériau durcissable à la lumière ultraviolette sur au moins 50% de la surface du substrat polymère ; la formation (S30) de micro et/ou nanostructures dans ladite première couche en matériau durcissable de telle sorte à générer au moins une première couche structurée, lesdites micro et/ou nanostructures étant configurées pour générer, une fois recouverte par une couche réfléchissante, un effet visuel variable en fonction des conditions d’observation; l’application (S40) de ladite couche réfléchissante dans des zones délimitées de ladite au moins une première couche structurée de telle sorte à former des zones optiquement actives où se trouve la couche réfléchissante, et des zones non optiquement actives, où la couche réfléchissante est absente ; et l’application (S50) d’un vernis de protection au moins sur l’ensemble des zones optiquement actives. Fig. 1A
Absstract of: MX2026007849A
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.
Absstract of: WO2026205078A1
A manufacturing method according to an embodiment comprises: causing the positions of a mount sheet and a lamination sheet to face each other to form a facing sheet stack; and locally heating and welding at least two anchor spots on the facing sheet stack while causing the sheets to face each other. Each of the sheets is a thermosensitive recording body or a plastic sheet. Alternatively, a laminate according to an embodiment is obtained by laminating a plastic sheet and a thermosensitive recording body having welding marks at corners. According to the present invention, it is possible to provide a method and a device for producing a fixed sheet stack in which a heat-sensitive recording body is fixed at an accurate position without impairing the color developability of the heat-sensitive recording body. Also provided are the produced fixed sheet stack and a laminate as an authentication medium produced from the fixed sheet stack.
Absstract of: AU2025226574A1
A transferring device for orienting platelet-shaped magnetic or magnetizable pigment particles contained in a radiation curable coating composition and applied on a substrate, the transferring device comprising: a number N of identical magnetic blocks (102) aligned along an alignment line provided on an outer surface of the transferring device, the magnetic blocks (102) each including M magnetic field generating devices (101) each generating a corresponding magnetic field such that the magnetic blocks (102) each generate a block magnetic field, N being greater than or equal to two, and M being greater than or equal to one; and a shielding element (105) partly isolating the block magnetic field of each magnetic block (102) from the block magnetic field of the other magnetic blocks (102), or a compensation magnetic block provided alongside the magnetic block (102).
Absstract of: WO2026199022A1
A security feature for a security document, as well as a security document incorporating the security feature, is disclosed comprising a substrate with a first iridescent ink layer and a second iridescent ink layer, wherein the first iridescent ink layer and the second iridescent ink layer at least partially overlap each other; wherein the second iridescent ink layer includes a colour switching ink, and wherein, when viewed in reflection, the combination of the first iridescent ink layer and the second iridescent ink layer display a first image when viewed from a first viewing angle and display a second image when viewed from a second viewing angle.
Absstract of: US20260300667A1
The present disclosure provides a reconstructable visual code. A visual code may be separated into a plurality of individual portions. The plurality of individual portions may be configured to transform between two or more states. In a first state, the plurality of individual portions may be spaced apart to form a non-functional visual code. In a second state, the plurality of individual portions may be moved relative to each other to form a functional visual code.
Absstract of: US20260296086A1
This disclosure generally relates to adhesive films and laminates and methods for producing and using the same are described herein. Specifically, adhesive films and laminates and methods for producing the same including a unique dendrimeric shaped identifier are discussed herein.
Absstract of: WO2026204916A1
The present disclosure enables authenticity determination of a product by being used for printing on the product. A thermal transfer sheet according to the present disclosure comprises: a substrate; and a transfer layer that is provided on one surface of the substrate and is transferred to a transfer target. The transfer layer includes an identification tag having a spectral profile that is identifiable in association with predetermined information. The transfer layer may contain at least one of a coloring material and an invisible light absorbing material. Alternatively, the transfer layer may have a first transfer layer and a second transfer layer provided in surface sequence, the first transfer layer may contain the identification tag, and the second transfer layer may contain at least one of a coloring material and an invisible light absorbing material.
Absstract of: WO2026204917A1
The present invention makes it possible to determine the authenticity of a product by utilizing printing on a product. This method for manufacturing a printed article comprises: transferring a first transfer layer, which is provided on a first thermal transfer sheet, onto a transfer-receiving object; and transferring a second transfer layer, which is provided on the first thermal transfer sheet or on a second thermal transfer sheet different from the first thermal transfer sheet, onto the transfer-receiving object. The first transfer layer includes a first identification tag, which has a spectral profile identifiable in association with prescribed information, and the second transfer layer includes a second identification tag, which has a spectral profile different from that of the first identification tag.
Absstract of: US20260285078A1
A method of making a magnetic security feature. A layer of ink comprising a first set of particles and a second set of particles in suspension within the liquid ink is printed onto a substrate. The particles are magnetically anisotropic and acicular. A permanent magnet is moved along the printed ink layer, followed by an electromagnet which is turned on and off selectively as it is moved along the printed ink layer. The electromagnet has a magnetic field strength which is higher than the coercivity of the particles of the second set but lower than the particle of the first set. The resulting magnetic security feature has a magnetic pattern across it, which has subtle differences between areas over which the electromagnet was turned off versus those over which it was turned on that are harder for counterfeiters to notice and/or copy.
Absstract of: US20260286154A1
The present invention relates to the field of security inks suitable for printing machine readable security features on substrate. security documents or articles as well as machine readable security feature made from said security inks, and security documents comprising a machine readable security feature made from said security inks. In particular, the invention provides security inks comprising one or more IR absorbing materials wherein said security ink allows the production of a machine readable security feature
Absstract of: US20260285075A1
A security feature for a security document, the security feature comprising one or more photoluminescent ink layers, each including a composition capable of emitting visible light when irradiated with a specified electromagnetic wavelength range, wherein the one or more photoluminescent ink layers are at least partially printed in a window region of the security document.
Absstract of: WO2025129444A1
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.
Absstract of: EP4793057A1
The present disclosure provides an improved stamping foil (200) and process for preparing the same, the process including depositing a first resin material to a surface of a substrate (210) to form a first resin layer (220) on the surface of the substrate, curing the first resin material of the first resin layer, depositing a second resin material on a surface of the cured first resin layer to form an embossing layer (230), forming one or more physical structures (235) onto a surface of the second resin material of the embossing layer, curing the second resin material of the embossing layer, deposit a reflective material on the surface of the embossing layer to form a reflective layer (240), and depositing an adhesive material on the reflective layer to form an adhesive layer (250).
Nº publicación: CA3302460A1 21/09/2026
Applicant:
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH [DE]
Giesecke+Devrient Currency Technology GmbH
Absstract of: CN122607016A
Disclosed is an optically variable security element for the security protection of security papers, value documents and other value items, comprising a substrate body (2) having a front side (4) and a rear side (6), a dielectric layer (30) applied to the front side (4) of the substrate body (2), the dielectric layer comprising a micro-facet structure comprising a first micro-mirror facet (20) and a second, different micro-mirror facet (22), and a reflective layer (32, 36) applied to the micro-facet arrangement and thus forming a micromirror arrangement (18). The first micromirror facet (20) has a smooth surface shape or a curved focusing surface shape, and the second micromirror facet (22) has a curved surface shape without a focusing effect.
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