Giesecke & Devrient Gmbh

Giesecke+devrient Currency Technology Gmbh

Peter Franz

Christian Fuhse

Michael Rahm

Andreas Rauch

Karlheinz Mayer

Reinhard Plaschka

Raphael Dehmel

Jürgen Schützmann

Roger Adamczyk

Christof Baldus

Georg Depta

Walter Dörfler

Johann Muller

Thanh-Hao Huynh

Max Voit

Eduard Wisjak

Astrid Heine

Stefan Winkler

Rüdiger Schmidt

Eckhard Braun

Stefan Bichlmeier

Christoph Mengel

Matthias Pfeiffer

Peter Schiffmann

Martin Imhof

Harald Reiner

Marco Viticoli

Johann Müller

Angelika Keck-Angerer

Ruediger Schmidt

Roger Adamczyck

Klaus Meindl

Daniela Otto

Franz Donaubauer

Alen Kasner

Mario Alessandrini

Luigi Damiano Russo

Hans-Joachim Kliem

Christian Schulze

Walter DÖRFLER

Simon Freutsmiedl

Walter Dorfler

The present invention relates to an optically variable security element for securing valuable articles, having a substrate having opposing first and second main surfaces and, arranged on the first main surface, an optically variable pattern that comprises an embossing pattern and a coating. The coating comprises at least one imprinted line grid and a background layer that contrasts with the line grid. The embossing pattern comprises a two-dimensional grid of elevated and/or depressed embossing elements. Both are combined in such a way that substantially on every embossing element lies at least one line segment of a line in the line grid, and at least one of the parameters position of the line segment on the embossing element, orientation of the line segment on the embossing element and form of the line segment varies location dependently across the dimension of the optically variable pattern. Due to the line grid, a movement effect, especially a pump or rotation effect, is created when the security element is tilted.

Optically variable security element

A value and safety document comprises a substrate having a front side and a back side. An ink layer is applied to the front or back sides of the substrate. A first motif is incorporated into the ink layer, and is combined with a second motif. The second motif is arranged on the same side of the substrate as the first motif. The second motif is configured in the form of an emboss structure comprising a plurality of raised emboss elements having areas of different orientation. The emboss structure forms the second motif having a second tilt or motion effect, by different groups of emboss elements, having different characteristic parameters, reflecting incident light in different spatial areas. The emboss elements have respectively a lateral dimension of less than 30 &#x3bc;m and a height of less than 10 &#x3bc;m. The first motif is adapted at least partially to the second motif.

Security element with effect pigments and an embossing structure and method for the production thereof

A security element includes an optically variable structure having a multiplicity of first embossed structures each including at least two flanks which converge at at least one certain angle. In at least one first partial region of the optically variable structure, at least one flank of the first embossed structures respectively has at least one additional embossed structure which is mounted on the flank of the first embossed structures or inserted into the flank of the first embossed structures. The geometry of the at least one additional embossed structure is executed to be at least near-inverse to the geometry of that flank of the first embossed structure on which the at least one additional embossed structure is mounted or inserted.

Security element comprising a plurality of optically variable structures

The invention relates to a data carrier, especially a value document or security paper, having a substrate () and, applied on the substrate, a coating () into which, through the action of laser radiation, markings () are introduced in the form of patterns, letters, numbers or images. According to the present invention, it is provided that the coating () includes a laser-radiation-absorbing layer () and a printing layer () that is disposed over the absorbing layer and that is at least partially transmissive to the laser radiation, and that the printed substrate is pressed () during or after the imprinting of the at least partially transmissive layer ().

Data carrier and method for the production thereof

The invention relates to a value document, such as bank note, passport or the like, which has a security paper and a marking produced with the help of a laser, the security paper having at least one partial area with a coating, and the marking extending over the border area between coating and security paper. Further, the invention relates to a security paper and methods for producing an inventive value document and security paper.

Security document

The invention relates to a value document, especially a banknote, having an individualizing mark that is applied at least once each to the front and the reverse of the value document. Here, at least one of the individualizing identifiers applied to the front and reverse is applied to the value document with a non-contact method.

Value document comprising a serial number

The invention relates to a security element with an optically variable structure, which has an embossed structure and a coating, wherein the embossed structure and the coating are combined such that at least parts of the coating are completely visible upon perpendicular viewing, but are concealed upon oblique viewing. This embossed structure has nonlinear embossed elements, which are combined with the coating such that when changing the viewing direction different pieces of information become visible.

Data support with an optically variable structure

The invention relates to a data carrier having a security element that is at lest visually testable and has an embossing in at least a partial area, the embossing being a halftone blind embossing executed by inkless line intaglio printing, and to a method for producing the data carrier and a printing plate for blind-embossing a security element.

Data carrier, method for the production thereof and gravure printing plate

A data carrier with an optically variable structure having an embossed structure with raised areas and a first coating contrasting with the surface of the data carrier. The embossed structure and the first coating are so combined that at least parts of the coating are completely visible upon perpendicular viewing but concealed upon oblique viewing so that a tilt effect arises upon alternate perpendicular and oblique viewing. The first coating is provided only in certain areas. Additionally, the optically variable structure has at least in partial areas a second coating likewise contrasting with the data carrier surface and disposed in overlap with the first coating at least in partial areas.

Data carrier comprising an optically variable element

A halftone image original is converted into a line screen halftone image including regularly spaced-apart screen linesthat are modulated in their width y in accordance with the tonal value to be represented. According to the invention, width y of screen linesis modulated only on one side so that screen linesare flat on one side and width-modulated on one side. Various examples are stated for how this screen line modulation permits effective copy protection.

Data carrier

The invention relates to a data carrier having a security element that is at least visually testable and has an embossing in at least a partial area, the embossing being a halftone blind embossing executed by inkless intaglio printing, and to a method for producing the data carrier and a printing plate for blind-embossing a security element.

Printing plates for all-over printing of large areas by the intaglio printing process, a method for producing the printing plates and data carriers, in particular bank notes, with large-area printed images produced by the intaglio printing process area proposed. Flawless inking is ensured by providing partitions in the engraving of the printing plate which rise up vertically from the base of the engraved area and have at least a height of 50% of the engraving depth. The partitions largely prevent ink from being wiped out of the engraved areas when ink is wiped off the printing plate surface. This permits a large printed area to be covered all over with ink layers on a data carrier. By special arrangement and design of the partitions one can also produce fine structures in the printing area which area recognizable only with magnifying aids depending on the selected distances between the partitions.

Intaglio printing process for all-over printing of large areas

The invention relates to a data carrier with a security printed image produced by intaglio printing. The security printed image consists of a plurality of contrasting structural elements disposed in exact register. A first part of the structural elements is designed to be relieflike and tactile and a second part of the structural elements flat and nontactile.

Data carrier with a printed security element and gravure production method thereof

A data carrier printed by line intaglio having a halftone image represented by irregular line structures in the manner of an engraving. The line structures are superimposed at least partly by fine structures rendered in positive or negative representation. Methods are provided for generating and processing irregular line structures as digital image data on a computer following individual specifications by an operator. The line structures are transferred to a line intaglio printing plate. The digital image data is used for controlling an engraving apparatus. In the alternative, other printing processes may be involved wherein the digital image data is superimposed at least partly with fine structures rendered in positive or negative representation.

Data carrier comprising a gravure printed image and methods for transposing image motifs into linear structures and onto a gravure printing plate

A data medium having a printed image is created by the intaglio printing process. The printed image has at least one first ink area with a first ink layer thickness and at least one second ink area with a second ink layer thickness adjacent to the first ink area, such that the ink layer thicknesses are different. The first and second ink areas are separated by a sharp border line invisible on examination with the naked eye, and the ink layer thickness of both ink areas passes through a minimum in the region of the border line.

Growing community of inventors

Bruck, Germany

Peter Franz