Leonhard Kurz Stiftung & Co Kg

Ovd Kinegram Ag

Rouven Spiess

Rene Staub

Ludwig Brehm

Patrick Kramer

Karin Forster

Wayne Robert Tompkin

Harald Walter

René Staub

Rainer Stahl

Patrick KRÄMER

Karin FÖRSTER

A method for producing a multi-layer body, in particular a security element, in which a partial first layer or partial first layer system is produced on a substrate, wherein the partial first layer or partial first layer system is present in a first partial area and not in a second partial area. Subsequently, a partial second layer or partial second layer system is produced, wherein the partial second layer or partial second layer system is present in a third partial area and not in a fourth partial area, and wherein the third partial area overlaps with the first and second partial areas. Finally, the partial first layer or partial first layer system is structured as a mask using the partial second layer or partial second layer system.

Multi-layer body and method for the production thereof

The invention relates to a security element (), a security document () with at least one security element (), a transfer foil () with at least one security element () as well as a method for producing a security element (), wherein the security element has at least one layer () that is electrically alterable in its optical effect. It is here provided that the at least one layer () that is electrically alterable in its optical effect has liquid crystals () that can be oriented in an electric field, wherein the at least one layer () that is electrically alterable in its optical effect has rod-shaped dye molecules (), and the orientations of the longitudinal axes () of the rod-shaped dye molecules () are alterable depending on the orientations of the longitudinal axes () of the spatially adjacent liquid crystals () that can be oriented in the electric field, and/or wherein the liquid crystals () that can be oriented in the electric field are formed in such a way that the liquid crystals () that can be oriented in the electric field simultaneously act as dye molecules.

Security element

The invention relates to a method for producing a multi-layer body, in particular a security element, in which a partial first layer or partial first layer system is produced on a substrate, wherein the partial first layer or partial first layer system is present in a first partial area and not in a second partial area. Subsequently, a partial second layer or partial second layer system is produced, wherein the partial second layer or partial second layer system is present in a third partial area and not in a fourth partial area, and wherein the third partial area overlaps with the first and second partial areas. Finally, the partial first layer or partial first layer system is structured as a mask using the partial second layer or partial second layer system.

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Unterageri, Switzerland

Rouven Spiess