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Optisch variables Sicherheitselement, Wertdokument und Herstellungsverfahren

Resumen de: DE102025101526A1

Es ist ein optisch variables Sicherheitselement zur Absicherung von Sicherheitspapieren, Wertdokumenten und anderen Wertgegenständen offenbart, das einen Substratkörper (2), der eine Vorderseite (4) und eine Rückseite (6) hat, und eine Druckschicht (8) aufweist, die auf die Vorderseite (4) des Substratkörpers (2) aufgebracht ist und erste Pigmente (10) und zweite Pigmente (12) enthält. Die ersten Pigmente (10) weisen vernetzte, cholesterische Flüssigkristalle auf, erzeugen eine erste Farbe in einem ersten Betrachtungsrichtungswinkelbereich und sind in einem zweiten Betrachtungswinkelbereich transparent. Die zweiten Pigmente (12) weisen vernetzte, cholesterische Flüssigkristalle auf, erzeugen eine zweite, andere Farbe im zweiten Betrachtungswinkelbereich und sind im ersten Betrachtungswinkelbereich transparent, sodass die ersten Pigmente (10) und die zweiten Pigmente (12) in Kombination einen Farbkippeffekt erzeugen, und unter der Druckschicht (8) ist ein lichtabsorbierender Untergrund vorgesehen.

INFORMATION STORAGE METHOD AND INFORMATION STORAGE MEDIUM WITH INCREASED STORAGE DENSITY BY MULTI-BIT CODING

Resumen de: EP4776180A2

0001 A method for storage of information comprising the steps of providing a substrate and coating the substrate with a layer of a second material different from the material of the substrate. A method for storage of information further comprising the steps of creating a plurality of recesses in a surface of the layer of the second material by using a laser and/or a focused particle beam in order to encode information in the layer of the second material. The plurality of recesses are located at a subset of first predetermined positions and/or at a subset of second predetermined positions, wherein the first predetermined positions define a regular pattern with a center-to-center distance between directly adjacent positions corresponding to at least 75% and to at most 150% of the maximum cross-sectional dimension of the recesses. The second predetermined positions define a regular pattern with a center-to-center distance between directly adjacent positions corresponding to at least 75% and to at most 150% of the maximum cross-sectional dimension of the recesses, wherein the center-to-center distance between any of the first predetermined positions and a directly adjacent second predetermined position is smaller than 75% of the maximum cross-sectional dimension of the recesses, and wherein for each pair of directly adjacent first and second predetermined positions only one of these directly adjacent first and second predetermined positions is occupied by a recess.

SECURITY DOCUMENT AND SYSTEM FOR CHECKING THE SECURITY DOCUMENT

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).

UV-VIS CURABLE SECURITY INKS COMPRISING TAGS AND SECURITY FEATURES OBTAINED THEREOF

Resumen de: TW202528493A

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.

UV-VIS CURABLE SECURITY INKS COMPRISING TAGS AND SECURITY FEATURES OBTAINED THEREOF

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.

Physical Security and Authentication Systems Using Quantum Signatures

Resumen de: US20260194607A1

Physical identification tags are provided that contain patterns of magnetized and non-magnetized nanoparticles embedded in a matrix. The magnetic nanoparticles form a spatially unique magnetic field distribution that is detectable only with the use of a quantum scanning magnetometer with nanometer resolution. The invisible magnetic field pattern is randomly generated by the mixture of magnetic with nonmagnetic nanoparticles and is physically impossible to reproduce. The tags can be used for identification and authentication of articles of commerce, artworks, and subjects.

SECURITY DEVICE WITH ENHANCED MACHINE READABILITY AND METHOD OF MANUFACTURING IT

Resumen de: WO2026148229A1

A micro-optic security device (200) includes an optical spacer layer (210, 305) comprising a first side and a second side, an array of focusing elements (205, 310), an array of image icons (220, 319a-319c), wherein the image icons comprise colored regions of cured resin, which when viewed with or through focusing elements of the array of focusing elements, project a synthetically magnified image and a machine-readable component (330), wherein the machine-readable component exhibits a signature variation in infrared (IR) transparency or reflection which varies according to wavelength through the near-infrared region of the electromagnetic spectrum.

A printed security feature

Resumen de: AU2026204534A1

A printed security feature Abstract A printed security feature for a security document including a substrate, the security feature 5 comprising: a first functional effect ink printed on a first surface of the substrate, and a second functional effect ink printed on the first and/or a second surface of the substrate, at least partially overlapping the first functional effect ink, wherein the first and the second functional effect inks in combination create an imagery feature which resembles an appearance of a security thread. 10 Abstract un b s t r a c t u n

UV-VIS RADIATION CURABLE COATING COMPOSITIONS COMPRISING MAGNETIC OR MAGNETIZABLE PIGMENT PARTICLES AND METHODS FOR PRODUCING OPTICAL EFFECT LAYERS

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.

IDENTIFIKATIONSMARKIERUNG-BILDUNGSVORRICHTUNG UND IDENTIFIKATIONSMARKIERUNG- BILDUNGSVERFAHREN

Resumen de: DE102025145646A1

Aufgabe Es werden eine Identifikationsmarkierung-Bildungsvorrichtung und ein Identifikationsmarkierung-Bildungsverfahren bereitgestellt, bei welchen im Hinblick auf die Bildung einer Identifikationsmarkierung an einem Werkstück eine neue Technik angewendet wird.Lösung Identifikationsmarkierung-Bildungsvorrichtung EA umfassend ein Markierungsmittel-Vorsehungsmittel 10, durch welches ein erstes Markierungsmittel MA1 und ein zweites Markierungsmittel MA2 an einem Werkstück WK vorgesehen werden, und mittels des vorgesehenen ersten Markierungsmittels MA1 und zweiten Markierungsmittels MA2 eine Identifikationsmarkierung DM mit einer individuellen Erkennbarkeit gebildet wird, wobei bei zumindest einem vom ersten Markierungsmittel MA1 und zweiten Markierungsmittel MA2 ein Fließen nach der Vorsehung möglich ist, sodass dieses nach der Vorsehung am Werkstück WK fließt, und das Markierungsmittel-Vorsehungsmittel 10 ein erstes Markierungsmittel-Vorsehungsmittel 13, durch welches das erste Markierungsmittel MA1 am Werkstück WK vorgesehen wird, und ein zweites Markierungsmittel-Vorsehungsmittel 15, durch welches das zweite Markierungsmittel MA2 am Werkstück WK vorgesehen wird, umfasst, wobei das erste Markierungsmittel MA1 und das zweite Markierungsmittel MA2 am Werkstück WK so vorgesehen werden, dass sie miteinander Kontakt haben, und durch ein Fließen nach der Vorsehung von zumindest einem vom vorgesehenen ersten Markierungsmittel MA1 und zweiten Markierungsmittel MA2, eine Id

METHOD FOR PRODUCING A LUMINESCENT INORGANIC MATERIAL AND LUMINESCENT INORGANIC MATERIAL PRODUCED USING THE METHOD

Resumen de: WO2026132629A1

The present invention relates to a method for producing a luminescent inorganic material based on an oxyfluoride matrix doped with multiple combinations of rare-earth ions (ytterbium (Yb), erbium (Er), thulium (Tm), europium (Eu) and neodymium (Nd)), and which contains micro- and nanostructured phases obtained using a thermal treatment. Advantageously, the material obtained using the method of the present invention generates a luminescence pattern with simultaneous emission in the near infrared spectrum and in the visible spectrum under 980 nm infrared excitation, which enables the material to be used in anti-counterfeiting security devices, such as security inks for printing textiles, paper money or printed circuits, among others.

ANTI-COUNTERFEITING DIGITAL INVISIBLE INK AND APPLICATION THEREOF

Nº publicación: WO2026129652A1 25/06/2026

Solicitante:

SUNWAY PRECISION TECH GUANGDONG CO LTD [CN]
\u8D5B\u7EF4\u7CBE\u5BC6\u79D1\u6280\uFF08\u5E7F\u4E1C\uFF09\u6709\u9650\u516C\u53F8

Resumen de: WO2026129652A1

Disclosed are an anti-counterfeiting digital invisible ink and application thereof. The anti-counterfeiting label provided by the present invention is prepared by printing the anti-counterfeiting digital invisible ink on a label followed by heating and drying, wherein the raw material components of the anti-counterfeiting digital invisible ink comprise, in parts by mass: 10-40 parts of an invisible anti-counterfeiting agent, 0.3-3 parts of a polymer, 0.05-1 part of a stabilizer, 5-30 parts of a solvent, and 0.05-5 parts of an auxiliary agent, wherein the invisible anti-counterfeiting agent is selected from one of an invisible anti-counterfeiting core-structured substance and core-shell composite particles; in the present invention, the anti-counterfeiting digital invisible ink is obtained by mixing and stirring the raw material components followed by dispersion treatment. Compared with the prior art, the anti-counterfeiting label prepared in the present invention has the advantage of excellent invisibility, and the anti-counterfeiting digital invisible ink used therein has the advantages of high stability and good weathering resistance.