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Resultados 53 resultados
LastUpdate Última actualización 09/10/2025 [13:05:00]
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Solicitudes publicadas en los últimos 60 dias/ Patent applications published in the last 60 days
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MINERAL OIL-FREE INTAGLIO INK

NºPublicación:  EP4600315A2 13/08/2025
Solicitante: 
SUN CHEMICAL BV [NL]
Sun Chemical B.V
EP_4600315_A2

Resumen de: EP4600315A2

The present invention describes a water wipe security intaglio printing ink composition comprising as a principal component bio-renewable iso-alkane vegetable oil-based solvent, which in combination with other constituents produces a mineral oil-free ink with improved sustainability and environmental impact footprint when compared to existing formulations designed for the same application.

METHOD OF DETECTING A CONCEALED PATTERN

NºPublicación:  EP4600047A2 13/08/2025
Solicitante: 
PPG IND OHIO INC [US]
PPG Industries Ohio, Inc
EP_4600047_A2

Resumen de: EP4600047A2

A method for detecting a component including a concealed pattern includes: detecting infrared electromagnetic radiation reflected or emitted by a component including a first pattern, the component including: a substrate; the first pattern disposed over at least a portion of the substrate; an optional primer layer disposed between at least a portion of the substrate and at least a portion of the first pattern; and a first visibly opaque layer including an infrared transparent pigment, the first visibly opaque layer disposed over at least a portion of the first pattern; and comparing the reflectivity and/or absorbance of infrared electromagnetic radiation by the first pattern at one wavelength to the reflectivity and/or absorbance by the primer layer and/or the substrate at the same wavelength.

SECURITY FOIL ELEMENT WITH SELECTION LAYER, PRODUCTION METHOD, TESTING METHOD AND DATA CARRIER WITH SECURITY FOIL ELEMENT

Nº publicación: EP4598750A1 13/08/2025

Solicitante:

GIESECKE DEVRIENT CURRENCY TECH GMBH [DE]
Giesecke+Devrient Currency Technology GmbH

DE_102022125865_PA

Resumen de: WO2024074174A1

The invention relates to a security foil element (12) for securing valuable objects (10), having a foil carrier (20) and a selection layer (24) applied to at least some portions of the foil carrier. The foil carrier (20) is formed from an extrudable plastic and in its volume is mixed with a machine-readable luminescent marker (22), which is used to emit luminescent radiation having a first wavelength and a second, different, wavelength (32, 34), each in the infrared spectral range. The selection layer (24) is designed to selectively spectrally inhibit the transmission of IR radiation, wherein the inhibiting effect on transmission differs for the first and second wavelengths (32, 34) by at least 10 percentage points.

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