Tintas de Seguridade

SECURITY ELEMENT FOR A VALUE DOCUMENT, HAVING A LUMINESCENT SECURITY FEATURE, AND METHOD FOR PRODUCTION THEREOF

Resumen de: US20260042312A1

A security element for a value document includes: a first concealed motif region having a first luminescence layer with at least one first excitation wavelength in the UV-A range; and a second concealed motif region having a second luminescence layer with at least one second excitation wavelength in the UV-A range that is different from the at least one first excitation wavelength.

LUMINESCENT INK AND CERAMIC PRODUCT WITH A LABEL PRINTED WITH LUMINESCENT INK

Resumen de: US20260042925A1

The present invention relates to a luminescent ink having a composition in % by weight comprising 20-55% of solvent, 5-55% of diluent; 2-15% of dispersant additive; 5-35% of solid particles with fluorescent properties, and 0.5-15% of solid dopant particles. The invention also relates to a process for obtaining a ceramic product with a printed luminescent label which incorporates a step in which digital printing is performed with said luminescent ink, this printing being applied on the surface substrate of the unfired ceramic part; and wherein the printing is performed with a digital printing machine; subjecting the ceramic part to a subsequent heat treatment in a conventional ceramic furnace at a temperature comprised between 650 and 1400° C.; and obtaining a fired ceramic product comprising a luminescent label visible with ultraviolet light. The invention also relates to a ceramic product obtainable by means of said process for obtaining a ceramic product, as well as to the use of the ink for printing luminescent labels that glow under ultraviolet light on ceramic products.

SINGLE-MODE EXCITATION COLOR-TUNABLE LUMINESCENT UPCONVERSION MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF IN SECURITY ANTI-COUNTERFEITING

Resumen de: WO2026031711A1

The present invention relates to the technical field of optical anti-counterfeiting. Disclosed are a single-mode excitation color-tunable luminescent upconversion material, and a preparation method therefor and a use thereof in security anti-counterfeiting. The single-mode excitation color-tunable luminescent upconversion material has a molecular formula of AxMOCly-1:Yb/Ln, wherein A is at least one of Li+, Na+, K+, and Cs+, M is at least one of La3+, Y3+, Gd3+, and Lu3+, and Ln is at least one of Er3+, Ho3+, and Tm3+, with 1≤x≤4 and 4≤y≤7. The single-mode excitation color-tunable luminescent upconversion material has an excitation wavelength range of 950 nm to 11000 nm and an emission wavelength range of 400 nm to 800 nm. Under excitation by single-mode near-infrared light, the material exhibits color-tunable upconversion luminescence. The upconversion material has a fast-responsive color-tunable luminescence function, can be used as a high-level security anti-counterfeiting strategy, and is easy and convenient to identify.

PRECISION WATERMARKING OF COVERT AND OVERT AUTHENTICATION FEATURES

Resumen de: WO2024205684A1

A secure document (100) includes a substrate (105) having a predetermined width and a predetermined length; a first covert feature (507) formed in the substrate; and a second covert feature (509) formed in the substrate, wherein the first covert feature is disposed at a first location on the substrate, the first location corresponding to a first registration region of an authenticating overlay (600), and wherein the second covert feature is disposed at a first location on the substrate, the first location corresponding to a second registration region of the authenticating overlay.

RYLENE-BASED UV CURABLE SECURITY INK COMPOSITIONS

Resumen de: US20260035579A1

The invention relates to the field of UV curable security ink compositions comprising rylene-based compounds, radically curable monomers, oligomers or mixtures thereof, and radical photoinitiators. The invention further relates to security features obtained by applying or printing the security ink compositions, articles or documents containing said security features and method of preparing the security features comprising the UV curable security ink compositions.

COLOUR IMAGE FORMED FROM A HOLOGRAM

Resumen de: US20260034826A1

A color image is disclosed. The color image comprises: a first layer including a holographic structure forming an arrangement of pixels each including sub-pixels of distinct colors; and color modulation means configured to select the color of the pixels by modifying the colorimetric contribution of the sub-pixels relative to each other in the pixels so as to reveal a customized color image. The color modulation means can comprise: regions of the holographic structure, called destroyed regions, which are locally destroyed by laser; masking means positioned facing the arrangement of pixels to locally mask all or part of the sub-pixels; or amplification means positioned facing the arrangement of pixels to locally amplify the lightness of all or part of the subpixels.

SECURITY MARKER SYSTEM

Resumen de: US20260034827A1

A security or identification system including the application of two or more marker portions that include one or more compounds or mixture of compounds that fluoresce under exposure to electromagnetic radiation. The marker portions emit light at different wavelengths to each other when exposed to said electromagnetic radiation.

REFLECTIVE FABRY-PÉROT (F-P) RESONANT STRUCTURES AND METHODS OF TUNABLE PLASMONIC COLOR PRINTING

Resumen de: US20260036731A1

Plasmonic color printing by fabricating a Fabry-Pérot (F-P) resonant structure on a substrate. The F-P resonant structure includes a reflective layer, a dielectric spacer layer overlying the reflective layer, and a random metal film (RMF) layer that overlies the dielectric spacer layer and has a nanostructure. The F-P resonant structure is photomodified using a laser, which induces changes in the nanostructure of the RMF layer. These changes are tailored to produce desired changes in the light-scattering and reflective properties of the RMF layer. As a result, by tailoring the photomodifications and the changes it produces, the color-generated by illumination filtered through and reflected from the F-P resonant structure can be tailored to a desired hue.

Sicherheits- oder Wertdokument mit einem Sicherheitsmerkmal, Herstellungsverfahren desselben und Verfahren zur Überprüfung dessen Echtheit

Resumen de: DE102024121612A1

Die Erfindung betrifft Sicherheits- oder Wertdokument (10) umfassend ein Substrat (11) mit einem Sicherheitsmerkmal (15),wobei das Sicherheitsmerkmal (15) wenigstens einen ersten Druckbereich (20.1), der auf einer ersten Position (21.1) auf dem Substrat (11) angeordnet ist und wenigstens einen zweiten Druckbereich (20.2), der auf einer zweiten Position (21.2) auf dem Substrat (11) angeordnet ist, umfasst,wobei der erste Druckbereich (20.1) mit einem ersten Farbsystem (30.1) bedruckt ist, das einen elektrolumineszenten Bestandteilen (40) aufweistundder zweite Druckbereich (20.2) mit einem zweiten Farbsystem (30.2) bedruckt ist, das keinen elektrolumineszenten Bestandteil aufweist,und wobei die Positionen (21.1, 21.2) der Anregbarkeit oder Nichtanregbarkeit von Elektrolumineszenz der Druckbereiche (20.1, 20.2) auf dem Sicherheits- oder Wertdokument einen maschinenlesbaren Code generieren und die Farben der beiden Farbsysteme (30.1, 30.2) für den gewöhnlichen Betrachter bei Tageslicht keinen anderen Farbeindruck vermittelnWeiterhin betrifft die Erfindung ein Herstellungsverfahren und ein Verfahren zur Überprüfung der Echtheit solcher Sicherheits- und Wertdokumente.

SECURITY DOCUMENT OR VALUE DOCUMENT COMPRISING A SECURITY FEATURE, METHOD FOR PRODUCING SAME, AND METHOD FOR VERIFYING THE AUTHENTICITY THEREOF

Resumen de: WO2026027956A1

The invention relates to a security document or value document (10) comprising a substrate (11) having a security feature (15), wherein the security feature (15) comprises at least one first printed region (20.1), which is situated at a first position (21.1) on the substrate (11), and at least one second printed region (20.2), which is situated at a second position (21.2) on the substrate (11); the first printed region (20.1) is printed using a first color system (30.1) which has an electroluminescent component (40) and the second printed region (20.2) is printed using a second color system (30.2) which does not have electroluminescent components; the positions (21.1, 21.2) of excitability or non-excitability of electroluminescence of the printed regions (20.1, 20.2) on the security document or value document generate a machine-readable code; and the colors of the two color systems (30.1, 30.2) do not impart any other color impressions to the average observer in the daylight, the color difference Delta E30.1-30.2 of the two color systems (30.1, 30.2) in the daylight being less than 2.5. The invention further relates to a production method and to a method for verifying the authenticity of such security documents and value documents.

SECURITY DOCUMENT INCLUDING AN OPTICALLY VARIABLE SECURITY FEATURE

Nº publicación: EP4686578A1 04/02/2026

Solicitante:

TOPPAN SECURITY IRELAND TEORANTA [IE]
Toppan Security Ireland Teoranta

Resumen de: EP4686578A1

A security document (10) includes a first security element (40) embedded in a substrate (1) of the same. The first security element (40) is part of an optically variable security feature (3) and is not visible when the security document (10) is viewed at a first observation angle, but becomes visible when the security document (10) is viewed at a second observation angle. This is achieved by hiding the first security element (40) behind an opaque layer (31) of the substrate (1), and providing appropriate openings (42) in the opaque layer, with which the security element (40) is aligned such that it can only be seen when the security document (10) is viewed at the second observation angle.The openings (42) can be through-holes (43, see figures 2, 3) or zones without an opaque material (39, see figures 4, 5).