The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to processes for producing optical effect layers (OELs) comprising a motif made of at least two areas made of a single hardened layer on a substrate comprising a photomask.

The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to processes for producing optical effect layers (OELs) comprising a motif made of at least two areas made of a single hardened layer on a substrate comprising a photomask.

A diffusely reflective optical film includes a blended layer extending from a first to a second zone of the film. The blended layer includes first and second polymer materials separated into distinct first and second phases, respectively. The blended layer may have the same composition and thickness in the first and second zones, but different first and second diffusely reflective characteristics in the first and second zones, respectively. The difference between the first and second diffusely reflective characteristics may not be attributable to any difference in composition or thickness of the layer between the first and second zones. Instead, the difference between the first and second diffusely reflective characteristic may be attributable to a difference in birefringence of the first and/or second polymer materials between the first and second zones. The blend morphology of the blended layer may be substantially the same in the first and second zones.

A diffusely reflective optical film includes a blended layer extending from a first to a second zone of the film. The blended layer includes first and second polymer materials separated into distinct first and second phases, respectively. The blended layer may have the same composition and thickness in the first and second zones, but different first and second diffusely reflective characteristics in the first and second zones, respectively. The difference between the first and second diffusely reflective characteristics may not be attributable to any difference in composition or thickness of the layer between the first and second zones. Instead, the difference between the first and second diffusely reflective characteristic may be attributable to a difference in birefringence of the first and/or second polymer materials between the first and second zones. The blend morphology of the blended layer may be substantially the same in the first and second zones.

A method for producing a data carrier includes a luminescent security element having at least two subregions, which at least do not completely overlap one another.

A method for producing a data carrier includes a luminescent security element having at least two subregions, which at least do not completely overlap one another.

A method is provided for producing a luminescent security marking on a substrate of a predetermined substrate type. The security marking includes a layer sequence applied on top of the substrate in a part region and formed from a diffuse reflectance printing ink applied on top of the substrate and from a luminescent printing ink applied on top of the diffuse reflectance printing ink, or a mixture of a diffuse reflectance printing ink and a luminescent printing ink. The layer sequence or the mixture exhibit visible luminescence after excitation. The layer sequence or the mixture are printed with a chosen layer thickness onto a substrate of the predetermined substrate type, in order to obtain a luminescent security marking, the luminescent spectrum of which matches the calculated combination spectrum in the part region on illumination with the excitation light. The invention also relates to an associated luminescent security marking.

The present invention relates to a label (1, 1, 1, 1) for verifying authenticity of items, the label (1, 1, 1, 1) being configured to be attached to items and comprising a plurality of focusing micro-optical elements (3) and a micropartide layer (5) comprising a plurality of luminescent and/or scattering microparticles (7), wherein the plurality of focusing micro-optical elements (3) and the microparticle layer (5) are arranged so that at least a part of light emitted and/or scattered from the plurality of luminescent and/or scattering microparticles (7) reaches the plurality of focusing micro-optical elements (3).

The present invention relates to a novel identification label that can be customized. The labels are designed to be either integrated or removably attached on exterior surface of consumer product containers allowing users to avoid potential confusion with respect to ownership, use or control of their containers. The label has an opaque scratch-off blank surface that can be removed to create a personalized identification mark. The label may have an UV-ink coating or can have a label layer for creating identification mark when the scratch-off blank surface is scratched. The labels are designed to be affixed on any personal item to prevent items from accidentally being misidentified.

The present invention relates to a novel identification label that can be customized. The labels are designed to be either integrated or removably attached on exterior surface of consumer product containers allowing users to avoid potential confusion with respect to ownership, use or control of their containers. The label has an opaque scratch-off blank surface that can be removed to create a personalized identification mark. The label may have an UV-ink coating or can have a label layer for creating identification mark when the scratch-off blank surface is scratched. The labels are designed to be affixed on any personal item to prevent items from accidentally being misidentified.