Resumen de: DE102023005456A1
Die Erfindung betrifft ein Verfahren zur Herstellung einer Anordnung von aus einem Kunststoff oder Harz bestehenden Mikrolinsen auf einem bogenförmigen Substrat, wobei in einer Bogendruckmaschine auf mindestens einem Exemplar des Substrats in einem Siebdruckverfahren eine Schicht aus flüssigem oder plastifiziertem Kunststoff oder Harz aufgetragen wird, dann aus der aus dem Kunststoff oder Harz bestehenden Schicht in einem Prägeverfahren mittels eines Formwerkzeugs die herzustellende Anordnung von Mikrolinsen geformt wird, danach die auf dem betreffenden Exemplar des Substrats zu Mikrolinsen umgeformte Schicht durch eine Bestrahlung mit einer UV-Strahlung gehärtet wird, wobei ein Formwerkzeug verwendet wird, welches zur Formung einer jeden der in der Anordnung mit einer Linsenbreite von maximal 100 µm herzustellenden Mikrolinsen formgebende Hohlräume mit in Transportrichtung des durch die Bogendruckmaschine zu transportierenden Substrats und/oder quer zur Transportrichtung des durch die Bogendruckmaschine zu transportierenden Substrats jeweils ein Paar von sich in einem Abstand gegenüberstehenden konkaven oder konvexen Flächen aufweist, wobei der Abstand zwischen dem jeweiligen Paar von gegenüberstehenden konkaven oder konvexen Flächen mindestens 10% der jeweiligen Linsenbreite beträgt.
Resumen de: WO2025061847A1
The invention relates to a method for producing a security element (4) comprising the following steps: providing a UV-embossing lacquer layer (8) and embossing a relief structure (9) and hardening the UV-embossing lacquer layer (8); printing a lacquer as a primer on the relief structure (9) and drying the lacquer, wherein the dried primer has a layer thickness of a maximum of 2 µm; and depositing by PVD of a ZnS layer (12) of a maximum thickness of 1 µm to cover the dried primer layer (10).
Resumen de: DE102023126016A1
Ein Etikett (1) mit Schutz vor einer Fälschung umfasst ein nicht klonbares Sicherheitsmerkmal (10) und einen verborgenen Code (20). Der verborgene Code (20) enthält Daten, die das Sicherheitsmerkmal (10) beschreiben. Die Daten sind in dem verborgenen Code in Form von Zeichen (21) codiert. Dadurch sind die charakteristischen Eigenschaften des Sicherheitsmerkmals (10) direkt auf dem Etikett (1) hinterlegt, so dass zu einer Authentifizierung des Sicherheitsmerkmals (10) kein Zugriff auf eine Datenbank erforderlich ist.
Resumen de: DE102023005457A1
Die Erfindung betrifft ein Verfahren zur Herstellung einer Anordnung von aus einem Kunststoff oder Harz bestehenden Mikrolinsen auf einem bogenförmigen Substrat, wobei in einer Bogendruckmaschine auf mindestens einem Exemplar des Substrats in einem Siebdruckverfahren eine Schicht aus flüssigem oder plastifiziertem Kunststoff oder Harz aufgetragen wird, dann aus der aus dem Kunststoff oder Harz bestehenden Schicht in einem Prägeverfahren mittels eines Formwerkzeugs die herzustellende Anordnung von Mikrolinsen geformt wird, danach die auf dem betreffenden Exemplar des Substrats zu Mikrolinsen umgeformte Schicht durch eine Bestrahlung mit einer UV-Strahlung gehärtet wird, wobei ein Formwerkzeug verwendet wird, welches zur Formung einer jeden der in der Anordnung mit einer Linsenbreite von maximal 100 µm herzustellenden Mikrolinsen formgebende Hohlräume mit in Transportrichtung des durch die Bogendruckmaschine zu transportierenden Substrats und/oder quer zur Transportrichtung des durch die Bogendruckmaschine zu transportierenden Substrats jeweils ein Paar von sich in einem Abstand gegenüberstehenden konkaven oder konvexen Flächen aufweist, wobei der Abstand zwischen dem jeweiligen Paar von gegenüberstehenden konkaven oder konvexen Flächen mindestens 10% der jeweiligen Linsenbreite beträgt.
Resumen de: EP4527635A1
The invention relates to a security element with a specific layered structure, where at least two printing layers with different properties in VIS and UV light are superimposed to achieve a multi-color gradient transition visible during verification using an ultraviolet (UV) lamp. The invention also relates to a method for making this security element.
Resumen de: 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.
Resumen de: WO2025057571A1
The present invention provides a method for producing leather, comprising the steps of: applying invisible ink containing an infrared-absorbing compound, a fluorescent compound, or a photochromic compound onto a leather substrate to record a code image; and forming an overcoat layer on the leather substrate on which the code image is recorded.
Resumen de: WO2025059631A1
In a general aspect, a unique marker includes a plurality of particles. In some cases, the particles are distributed (e.g., fixed) on a surface, and a unique code can be generated based on the spatial properties (e.g., relative positions and relative orientations) of the projection of these particles onto a plane. A computing system may generate the unique code, and the spatial properties may be determined from data obtained by a camera or another type of optical detector.
Resumen de: US2025094760A1
A data carrier in card form includes a card body, which has a first card surface, a second card surface, and a peripheral border. The peripheral border connects the first card surface to the second card surface. The peripheral border also has a first border portion with at least one cutout, with at least one cutout being at least partially filled with a color material, in order in this way to provide a color effect for the first border portion. A method is provided for producing a data carrier in card form.
Resumen de: US2025092263A1
A flake including a layer of a diamagnetic material; and at least one additional layer is disclosed. The flake, such as a plurality of flakes, can be dispersed in a liquid medium to form a composition. The composition can be applied to a surface of a substrate to form a security device. A method of making the security device is also disclosed.
Resumen de: CN119072399A
The invention relates to a planar value document (10) having a planar region with a longitudinal direction (L) and a transverse direction (Q), in which a luminous feature (12) is provided. According to the invention, the luminescent feature (12) comprises a first luminescent marking in a first sub-region (14) and a second luminescent marking in a second, different sub-region (16). The first and second luminescent indicia can be excited to emit light at the same wavelength, and after excitation, substantially emit light in the same emission band in the infrared spectral range. The first and second luminescent indicia have a spectrally similar infrared emission spectrum, i.e. An infrared emission spectrum having a spectral difference between 0.5% and 15%. The first and second sub-regions are arranged in the surface region so as to overlap each other in a projection in the longitudinal direction (L) and/or in a projection in the transverse direction (Q).
Resumen de: DE102023124461A1
Die Erfindung betrifft ein Wertdokument, wie beispielsweise eine Banknote, ein Scheck, eine Kredit- oder sonstige Zahlungskarte, eine Ausweiskarte oder dergleichen. Es weist einen Substratkörper auf, der eine Vorderseite (3) und eine Rückseite (4) hat. Auf der Vorderseite (3) des Substratkörpers (2) ist eine Digitaldruckschicht (6) aufgebracht, welche mit einer Tinte als Farbannahmeschicht ausgebildet ist. Auf die Digitaldruckschicht (6) ist ein Stichtiefdruck (8) mit einer Stichtiefdruckfarbe aufgebracht, wobei der Stichtiefdruck entweder im Passer zur Digitaldruckschicht aufgebracht ist, oder der Stichtiefdruck von der darunterliegenden Digitaldruckschicht zu einem gemeinsamen Motiv ergänzt wird.
Resumen de: WO2025051658A1
The present invention relates to the technical field of security features comprising taggants by means of Surface-Enhanced Raman Spectroscopy (SERS) and their detection. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags for printing security features on substrates, in particular on security documents or articles, wherein said inks comprise one or more surface enhanced Raman spectroscopy (SERS) tags, one or more radiation curable compounds, and one or more photoinitiators and wherein said inks lack a vinyl ether containing compound.
Resumen de: WO2025051659A1
The present invention relates to the technical field of security features comprising taggants by means of Surface-Enhanced Raman Spectroscopy (SERS) and their detection. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags for printing security features on substrates, in particular on security documents or articles, wherein said inks comprise i) one or more surface enhanced Raman spectroscopy (SERS) tags, ii) one or more vinyl ether containing compounds, iii) one or more cationically radiation curable compounds different from the one or more vinyl ether containing compounds of ii) and iv) one or more cationic photoinitiators being a salt of hexafluorophosphate.
Resumen de: WO2025052100A1
There is provided an article comprising a layer covering a three-dimensional surface of the article, the layer providing a function, and an optically readable PUF in the layer, such that the layer provides the function of enabling authentication of the article. Reading of the optically readable PUF from different perspectives allows the article to be authenticated with different identities from those different perspectives of the three-dimensional surface via the reading.
Resumen de: WO2025052155A1
A security document (1) having a transparent window (2) comprising UV fluorescent inks (3, 3 ') and UV absorbing ink (4), characterised by that the UV absorbing ink (4) is positioned in a part of the transparent window (2), the first UV fluorescent ink (3) being positioned between the surface of the first side (A) of the transparent window (2) and the UV absorbing ink (4), the second UV fluorescent ink (3' ) is positioned between the surface of the second side (B) of the transparent window (2) and the UV absorbing ink (4) in such a way that the first and second UV fluorescent inks (3, 3' ) are positioned opposite each other on the part of the transparent window (2) not covered by the UV absorbing ink (4), and another part of the first and second UV fluorescent inks (3, 3' ) are positioned opposite each other on the part covered by the UV absorbing ink (4).
Resumen de: EP4520544A1
Die Erfindung betrifft ein Wertdokument, wie beispielsweise eine Banknote, ein Scheck, eine Kredit- oder sonstige Zahlungskarte, eine Ausweiskarte oder dergleichen. Es weist einen Substratkörper auf, der eine Vorderseite (3) und eine Rückseite (4) hat. Auf der Vorderseite (3) des Substratkörpers (2) ist eine Digitaldruckschicht (6) aufgebracht, welche mit einer Tinte als Farbannahmeschicht ausgebildet ist. Auf die Digitaldruckschicht (6) ist ein Stichtiefdruck (8) mit einer Stichtiefdruckfarbe aufgebracht, wobei der Stichtiefdruck entweder im Passer zur Digitaldruckschicht aufgebracht ist, oder der Stichtiefdruck von der darunterliegenden Digitaldruckschicht zu einem gemeinsamen Motiv ergänzt wird.
Resumen de: GB2633332A
An article comprises a three-dimensional surface covered with a functional layer comprising an optically-readable PUF (physical unclonable function), whereby, in use, reading the PUF from multiple perspectives allows the article to be authenticated with different identities from the different perspectives. Typically, the surface has a plurality of faces. The article may be a machine part, clothing, footwear, bag, food, artwork, electronic component, certificate, ID card, gemstone, medicine, tax stamp, currency, packaging, or labelling. The layer may be edible. Typically, the PUF comprises a fluorescent compound, e.g. a rhodamine dye, cyanine dye, phthalocyanine dye, porphyrin dye, or a quinacridone. Preferably, the layer is formed by applying a PUF coating composition, e.g. an ink, to the surface. The PUF coating composition may be prepared by adding an optically-readable material, e.g. a rhodamine dye, to a coating composition, e.g. a UV-curable lacquer. A method of making the article is also disclosed.
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.
Resumen de: MX2025000612A
The invention relates to a colour image (IG) comprising: a first layer (10) comprising a holographic structure forming an arrangement (29) of pixels (30) each comprising sub-pixels (32) of distinct colours; and colour modulation means configured to select the colour of the pixels (30) by modifying the colorimetric contribution of the sub-pixels (32) relative to each other in the pixels (30) so as to reveal a personalised colour image. The colour modulation means can comprise: regions of the holographic structure, called destroyed regions, that are locally destroyed by a laser; masking means positioned facing the arrangement of pixels to locally mask all or some of the sub-pixels; or even amplification means positioned facing the arrangement of pixels to locally amplify the luminosity of all or some of the sub-pixels.
Resumen de: US2025074101A1
A platelet-shaped magnetic effect pigment for use in a printing ink, includes a layer construction with a magnetic layer and at least one optical functional layer. The magnetic layer is based on elongate nanomagnets that do not touch one another and have a substantially uniform preferred magnetic direction arranged perpendicular to the platelet plane of the effect pigment.
Resumen de: WO2023209242A1
A data carrier (1) for a secure article such as a passport comprises a carrier body (2), and at least one security element (3) being provided on the carrier body (2). The security element (3) comprises at least one surface structure extending along at least one extension direction (E) and at least one print (5) being at least partially arranged on the surface structure. The security element (3), in the region of the surface structure, is configured to exhibit different appearances when being observed under different viewing angles.
Resumen de: PL445989A1
Przedmiotem zgłoszenia jest element (50) zabezpieczający o szczególnej budowie warstwowej, w którym poprzez nałożenie na siebie co najmniej dwóch warstw zadruku o odmiennych właściwościach w świetle VIS i UV uzyskuje się wielobarwne przejście gradientowe widoczne w procesie weryfikacji z użyciem lampy emitującej światło ultrafioletowe (UV). Przedmiotem zgłoszenia jest również nośnik danych zawierający dany element zabezpieczający oraz sposób wykonania danego elementu zabezpieczającego.
Resumen de: US2025065656A1
A plastic product includes a printing field, wherein an imprint is applied to the printing field by a digital direct printing process, wherein UV ink or UV color is used as the printing medium. A method for applying an imprint to a plastic product includes: (a) providing the plastic product having a plastic body and a printing field provided on the plastic body, and (b) printing a printed image by direct application of a printing agent in a digital printing process, wherein the printing agent is a fluorescent printing agent.
Nº publicación: WO2025040652A1 27/02/2025
Solicitante:
SICPA HOLDING SA [CH]
SICPA HOLDING SA
Resumen de: WO2025040652A1
The invention relates of UV-Vis radiation curable coating compositions comprising magnetic or magnetizable pigment particles and methods for producing optical effect layers (OELs) comprising magnetically oriented magnetic or magnetizable pigment particles and the use of said OELs as anti-counterfeit means on security documents or security articles as well as decorative purposes. The UV-Vis radiation curable coating compositions comprises one or more (meth)acrylate monomers, one or more cyclic ether compounds, one or more vinyl ether compounds, one or more photoinitiators, one or more thermoplastic polymers and non-spherical magnetic or magnetisable pigment particles.