Alerta

IMPROVED METHOD FOR PARTIAL COLOURING OF PLASTIC PARTS

Resumen de: EP4549163A2

Die vorliegende Erfindung betrifft ein verbessertes Verfahren zum partiellen Einfärben, insbesondere zum farbigen Lasergravieren, von Kunststoffteilen, insbesondere thermoplastischen Kunststoffteilen, ganz besonders von thermoplastischen Kunststoffteilen umfassend einen Schichtaufbau, die resultierenden partiell eingefärbten, vorzugsweise farbig lasergravierten, Kunststoffteile, insbesondere thermoplastische Kunststoffteile sowie eine Vorrichtung zum partiellen Einfärben von Kunststoffteilen.

LIGHT-EMITTING ELECTROCHEMICAL CELL, SECURITY ELEMENT, SECURITY SYSTEM, METHOD OF OPERATION AND METHOD OF PRODUCTION

Resumen de: US2025143067A1

A light-emitting electrochemical cell (1, 1′, 1″, 1′″) comprises a substrate (10), a first electrode (11), an emission layer (13), contacting the first electrode (11) and providing a first 2D pattern, which is made up by the emission layer being visually distinguishable, and a second electrode (14). The emission layer (13) provides a second 2D pattern, which is made up by first portions (131a, 131b; 132a, 132b) which are passive with respect to photoluminescence and second portions (133) of the emission layer which are active with respect to photoluminescence, and a third 2D pattern is provided by regions, which are active with respect to electroluminescence, where the first and second electrodes (11, 14) overlap and electrically contact the second portions (133) of the emission layer (13). There is also disclosed a security element, a security system and methods of operating and manufacturing the light-emitting electrochemical cell (1, 1′, 1″, 1′″).

SECURITY MARKER SYSTEM

Resumen de: WO2024018226A1

A security or identification system including the application of two or more marker portions or stripes (4a-4d) 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.

PROCÉDÉS D'IMPRESSION EN CREUX POUR PRODUIRE DES ÉLÉMENTS DE SÉCURITÉ CONSTITUÉS D'ENCRES HÉLIOGRAPHIQUES À SÉCHAGE OXYDATIF

Resumen de: AU2023303042A1

The present invention relates to the field of processes for producing a security feature on a substrate by an intaglio printing process comprising a step a) of inking an intaglio engraved printing plate with an oxidative drying intaglio ink, said intaglio engraved printing plate being at a printing plate temperature between about 45°C and about 85°C; a step b) of wiping off any excess the oxidative drying intaglio ink using a paper of a tissue wiping system or using a polymeric wiping cylinder and cleaning said polymeric wiping cylinder with an alkaline aqueous wiping solution in combination with one or more mechanical means; a step c) of transferring said oxidative drying intaglio ink in the form of the security feature on the substrate; and a step d) of drying the oxidative drying intaglio ink in the presence of air so as to form the security feature.

SECURITY THREAD WITH A MAGNETIC ELEMENT

Resumen de: WO2023247969A2

A method of making a magnetic security feature, particularly a security thread with a magnetic element, which is harder to counterfeit and so more secure. A layer of ink 3 comprising a first set of particles and a second set of particles in suspension within the liquid ink is printed onto a substrate 2. The particles are magnetically anisotropic and acicular. Then, a permanent magnet 7 is moved along the printed ink layer, followed by an electromagnet 8 which is turned on and off selectively as it is moved along the printed ink layer 3. The electromagnet 8 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 1 has a magnetic pattern across it, which has subtle differences between areas over which the electromagnet 8 was turned off versus those over which it was turned on. These subtle differences are harder for counterfeiters to notice and/or copy, resulting in a more secure document to which the magnetic security feature 1 is applied.

PRINTED TINY TEXT

Resumen de: EP4545307A1

Methods and systems for defining characters, can involve selectively removing pixels from one or more characters and rendering a character with a user space equivalent to a device space. Multiple abutting non-line pixels can be removed among the pixels from the character(s). Furthermore, the character(s) including the multiple abutting non-line pixels as expected for the character(s) can be created prior to prior to selectively removing the pixels from the character(s). This approach can avoid partially marked pixels by setting user space equal to device space and then selectively removing pixels when printing microtext. Selective pixel removal allows for more white space and better recognition of characters such as, for example, "8" and "E".

Maschinensystem und Verfahren zum Überwachen und/oder Steuern der Produktion von Nutzen

Resumen de: DE102023129557A1

Die Erfindung betrifft ein Maschinensystem mit einer Druckmaschine und einer Weiterverarbeitungsmaschine, wobei die Druckmaschine eine Druckeinrichtung aufweist, die zum Aufbringen eines mehrere, je ein Kontrollelement aufweisende Nutzen umfassenden Druckbildes auf einem Bedruckstoff ausgebildet ist, wobei eine Qualitätskontrolleinrichtung und in Transportrichtung des Bedruckstoffes nach der Qualitätskontrolleinrichtung mindestens eine Markierungseinrichtung ausgebildet ist, mit der die Kontrollelemente zum Zweck der Markierung veränderbar ist, wobei die Qualitätskontrolleinrichtung zum Erfassen mindestens eines Merkmals aller Kontrollelemente ausgebildet ist. Ebenfalls betrifft die Erfindung ein Verfahren zum Überwachen und/oder steuern der Produktion von Nutzen.

VARIABLE-APPEARANCE LASER MARKING OVER PRINTED LAYERS

Resumen de: US2025130502A1

A data carrier extends along an extension direction (E) and comprises at least one carrier body and at least one processing layer. The processing layer, at least in an unprocessed state of the processing layer, comprises one or more reactive elements and one or more unreactive elements. The reactive elements are configured to interact with impinging electromagnetic radiation (R) upon a processing of the processing layer. The processing layer, in a processed state of the processing layer, comprises one or more reacted elements being generated from the reactive elements. The processing layer in the processed state furthermore comprises one or more further reacted elements being generated from one or more of the unreactive elements upon the interaction of the reactive elements with the impinging electromagnetic radiation (R) and furthermore comprises one or more unreactive elements remaining non-interacting. The processing layer in the processed state furthermore comprises at least one personalization element, which personalization element comprises or consists of the non-interacting unreactive elements.

SUSPENSION OF CHIPS IN INKS, PAINTS OR VARNISHES, METHOD OF PRODUCTION AND USE FOR TRANSFERRING THE CHIPS TO COMPLEX SURFACES USING WRITING, PRINTING OR PAINTING DEVICES

Resumen de: WO2025083302A1

The present invention relates to a suspension of chips that can be directly used on spatially and geometrically complex surfaces to provide these surfaces with said chips by means of writing, painting or printing devices, and to its method of production. The present invention further relates to the use of the suspension for decoration, marking, anti-forgery or antifraud, encryption, as sensors, as actuators, and for manufacturing electronic devices, and to the use of the suspension for determining the dimensions of the channels of a writing, painting or printing device.

OPTICALLY READABLE PHYSICAL UNCLONABLE FUNCTIONS ON INORGANIC MATERIALS

Resumen de: WO2025083390A2

According to a first aspect of the present invention, there is provided a method of making an optically readable PUF on a surface of a first material, wherein the first material comprises an inorganic material, the method comprising treating the surface so as to create a plurality of colour centres thereon.

CHIP SUSPENSION IN INKS, PAINTS OR VARNISHES, PROCEDURE FOR OBTAINING AND USING THEM TO TRANSFER THE CHIPS TO COMPLEX SURFACES BY MEANS OF WRITING, PRINTING OR PAINTING DEVICES (Machine-translation by Google Translate, not legally binding)

Resumen de: ES3014635A1

Chip suspension in inks, paints, or varnishes, method for obtaining and using it to transfer the chips to complex surfaces using writing, printing, or painting devices. The present invention describes a chip suspension that can be applied directly to spatially and geometrically complex surfaces to provide these surfaces with said chips using writing, painting, or printing devices, and the method for obtaining it. Furthermore, the present invention relates to the use of the suspension for decoration, marking, anti-counterfeiting or anti-fraud, coding, as sensors, as actuators, and for the manufacture of electronic devices, and to the use of the suspension for determining the dimensions of the channels of a writing, painting, or printing device. (Machine-translation by Google Translate, not legally binding)

METHOD FOR PRODUCING A FLUORESCENCE PROPERTY IN A MATERIAL USING A LASER

Resumen de: EP4541601A1

Es wird ein Verfahren (100) zum Erzeugen einer zumindest teilweisen Fluoreszenzeigenschaft in einem Material (10) bereitgestellt. Das Verfahren (100) umfasst das Bereitstellen (110) des Materials (10), das Bereitstellen (120) eines Lasers (20), das Anordnen des Materials (130) in einem Strahlengang des Lasers (20), so dass der Laser (20) das Material selektiv abschnittsweise bestrahlen kann, und das zumindest abschnittsweises Bestrahlen (140) einer Oberfläche (11) des Materials (10) mit dem Laser (20). Das zumindest abschnittsweise Bestrahlen (140) der Oberfläche (11) des Materials (10) mit dem Laser (20) findet so lange statt, bis sich sichtbare Schmauchspuren (12) auf den bestrahlten Bereichen (13) der Oberfläche (11) des Materials (10) bilden, wodurch eine Fluoreszenzeigenschaft in den bestrahlten Bereichen (13) erzeugt wird.

Verfahren zum Erzeugen einer Fluoreszenzeigenschaft in einem Material mit einem Laser

Resumen de: DE102023128446A1

Es wird ein Verfahren (100) zum Erzeugen einer zumindest teilweisen Fluoreszenzeigenschaft in einem Material (10) bereitgestellt. Das Verfahren (100) umfasst das Bereitstellen (110) des Materials (10), das Bereitstellen (120) eines Lasers (20), das Anordnen des Materials (130) in einem Strahlengang des Lasers (20), so dass der Laser (20) das Material selektiv abschnittsweise bestrahlen kann, und das zumindest abschnittsweises Bestrahlen (140) einer Oberfläche (11) des Materials (10) mit dem Laser (20). Das zumindest abschnittsweise Bestrahlen (140) der Oberfläche (11) des Materials (10) mit dem Laser (20) findet so lange statt, bis sich sichtbare Schmauchspuren (12) auf den bestrahlten Bereichen (13) der Oberfläche (11) des Materials (10) bilden, wodurch eine Fluoreszenzeigenschaft in den bestrahlten Bereichen (13) erzeugt wird.

LUMINESCENT PRINTING INK FOR SECURITY PRINTING, ITEM HAVING LUMINESCENT FEATURE, AND PRODUCTION METHOD

Resumen de: US2025122394A1

A luminescent printing ink for security printing includes a fluorescent substance and a phosphorescent substance which each luminesce in the visible spectral range when excited with non-visible excitation light. The printing ink contains one or more capsule luminescent pigment varieties, each of which has a core, a shell encapsulating the core and a luminescent substance present in the core. The fluorescent substance and the phosphorescent substance are each present as a luminescent substance in the core of one or more of the capsule luminescent pigment varieties so that the capsule luminescent pigments form fluorescent capsule luminescent pigments and/or phosphorescent capsule luminescent pigments. The luminescences of the fluorescent and the phosphorescent capsule luminescence pigments have the same light-fastness and the same chemical stability, and their luminescences visually produce a substantially matching colour impression.

METHODS FOR PRODUCING OVERT SECURITY FEATURES EXHIBITING ONE OR MORE INDICIA

Resumen de: US2025121405A1

The present invention relates to the field of methods for producing eye-catching overt security features exhibiting one or more indicia as anti-counterfeit means on value documents or articles as well as decorative purposes. In particular, the present invention provides methods for producing security features that can be easily, directly and unambiguously authenticated by the human without any external device or tool, wherein said security features comprised a cured ink and one or more cured indicia, said ink comprising cured cationically curable compounds or cured hybrid curable compounds and silver nanoplatelets.

IMPROVED SCRATCH PAD AND INK

Nº publicación: EP4536486A1 16/04/2025

Solicitante:

PLUS BRAND IND INC [US]
Plus Brand Industries Inc

Resumen de: MX2024015173A

A scratch-off coating is provided which includes a first layer of ink comprised of a water-based ink; and a second layer of ink comprised of an ultraviolet-cured ink layered over said first layer of ink, wherein upon application of a scratching force said first layer of ink and said second layer of ink are removable from a surface on which said first layer of ink and said second layer of ink are applied.