Alerta

TACTILE LATENT INFORMATION IN AN INKJET PRINTED LAYER ON IDENTITY CARDS

Resumen de: US20260257509A1

0000 Identification card (1), including a base sheet (2) and on top of said base sheet an information layer (8) containing at least one feature made of a first material, which is transparent for white light and which is or is not under irradiation with electromagnetic radiation which is not in the visible spectrum (eg UV-light or IR-light) opaque and/or colored and/or emits colored light. The feature is directly or via an intermediation of one or more layers inkjet printed on a surface of the base sheet (2) such that it protrudes therefrom. It is beneficial that the protrusion height is 2 um to 13 pm. The base sheet can have a laser engraved image.

OPTICAL DEVICE

Resumen de: AU2025250721A1

The present invention relates to an optical device comprising a first layer that comprises an alignment surface defining an alignment direction, wherein said alignment direction varies periodically in the azimuthal orientation, defining a grating pitch, in a grating direction within the first layer; and a second layer being arranged adjacent to the first layer so that an alignment interface is formed between the first and second layer, wherein, in a cross-section parallel to the first layer, said second layer includes a patterned area comprising sections of chiral nematic liquid crystals, and wherein an orientation direction of the chiral nematic liquid crystals just within the patterned area of the second layer at the alignment interface is set by the alignment direction defined by the alignment surface of the first layer. In addition, present invention relates to an optical arrangement comprising a first and second optical device. Moreover, present invention relates to a method for manufacturing an optical device and the use of such optical device.

ANTI-COUNTERFEITING LABEL AND METHOD FOR ITS PRODUCTION

Resumen de: WO2026176262A1

An anti-counterfeiting component (1) to be applied to a determined product, said component being comprised in a determined shape and peripheral edges and comprising: - a base support layer (2) and, proceeding in layers, starting from said base support layer (2): - a barcode (4), printed on said base support layer (2) and containing determined information content relating to a determined product; - a mechanically scratchable coating (10) or removable film, comprising graphics composed of geometric shapes and/or varied highlights, obtained by means of a printing programme, said graphics of said removable film or coating (10) being printed over an area larger than or at least equal to that covered by said barcode (4); wherein there are provided - a plurality of half-cuts (12), configured to be across, even partially, the edges of the component, so as to prevent, in use, after the component has been applied to the product, a removal of the component from the product without tearing; and wherein - said barcode (4) is a polychromatic QR code (4b), comprising colours and shades and obtained through chromatic processing of a native QR code (4a) containing said determined information content, said colours and shades being randomly associated with said determined information content. It further comprises a tag (15) which, when it is not to be read, has applied to it an element (17) for temporarily deactivating it.

SECURITY DOCUMENT, SYSTEM FOR PRODUCING A SECURITY DOCUMENT, AND METHOD FOR PRODUCING A SECURITY DOCUMENT

Resumen de: US20260249639A1

0000 A security document, a method for producing a security document and a system for producing a security document. The security document includes an absorption region for the formation of at least one item of personalized information, wherein the security document has been processed and/or can be processed in the absorption region such that the at least one item of personalized information visible through absorption of light incident on a first side. The security document further includes a first security element with an optically variable effect, wherein, in the case of observation of the first side, the first security elementis arranged behind the absorption layer and the first security elementis arranged in a first region, wherein the first region overlaps the absorption region partially or over the whole surface and the first region does not overlap the absorption regionin a background region directly adjacent to the absorption region.

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: EP4796604A1

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 anti-fraud, 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 VARIABLE SECURITY ELEMENT, VALUABLE DOCUMENT AND PRODUCTION METHOD

Resumen de: EP4796340A1

Es ist ein optisch variables Sicherheitselement zur Absicherung von Sicherheitspapieren, Wertdokumenten und anderen Wertgegenständen offenbart, das aufweist: einen Substratkörper (2), der eine Vorderseite (4) und eine Rückseite (6) hat, eine Dielektrikumschicht (30), die auf die Vorderseite (4) des Substratkörpers (2) aufgebracht ist und eine Mikrofacettenanordnung, umfassend erste Mikrospiegelfacetten (20) und zweite, unterschiedliche Mikrospiegelfacetten (22), aufweist, und eine Reflexionsschicht (32, 36), die auf die Mikrofacettenanordnung aufgebracht ist und so die Mikrospiegelanordnung (18) ausbildet. Die ersten Mikrospiegelfacetten (20) weisen eine glatte Oberflächenform oder eine gekrümmte, fokussierend wirkende Oberflächenform auf, und die zweiten Mikrospiegelfacetten (22) weisen eine gekrümmte Oberflächenform auf, die keine fokussierende Wirkung hat.

SECURITY ELEMENT WITH DIFFRACTIVE STRUCTURES

Nº publicación: EP4796338A1 26/08/2026

Solicitante:

HUECK FOLIEN GMBH [AT]
Hueck Folien Gesellschaft m.b.H.

Resumen de: EP4796338A1

0001 Die Erfindung betrifft Sicherheitselement (1) insbesondere für Wertpapiere, Sicherheitspapiere oder Sicherheitsgegenstände, wie Banknoten, Ausweise, Kreditkarten, das einen ersten Bereich (2) mit optisch wirksamen, diffraktiven ersten Strukturen (3) aufweist, mittels der ein erzeugter Gesamteindruck achromatisch erscheint, und der zumindest teilweise mit einer optischen Effektschicht (4) beschichtet ist, sodass der Gesamteindruck unter einem ersten Betrachtungswinkel (5) in einer ersten Farbe (6) erscheint und unter einem zweiten Betrachtungswinkel (7) in einer zweiten Farbe (8) erscheint. 0002 Das Sicherheitselement umfasst einen zweiten Bereich (9) mit optisch wirksamen, diffraktiven zweiten Strukturen (10), der ebenfalls mit der optischen Effektschicht (4) beschichtet ist und die zweiten Strukturen (10) in ihren Struktureigenschaften gegenüber den ersten Strukturen (3) derart unterschiedlich ausgebildet sind, dass der Gesamteindruck in dem zweiten Bereich (9) unter dem ersten Betrachtungswinkel (5) in zumindest einer dritten Farbe (12) erscheint.