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

Patent metadata

Field	Value
Publication number	US-10322601-B2
Application number	US-201615562214-A
Country	US
Kind code	B2
Filing date	Jan 13, 2016
Priority date	Mar 27, 2015
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

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 μm and a height of less than 10 μm. The first motif is adapted at least partially to the second motif.

First claim

The invention claimed is:

1. A value and security document which comprising of a substrate having a front side and a back side,
wherein on the front side or back side of the substrate an ink layer is applied into which a first motif is incorporated in the form of a pattern, sign or coding, wherein the first motif is configured in the form of an emboss structure including a plurality of raised emboss elements having areas of different orientation which are characterized by the parameters size, outline form, relief form, reflectivity and spatial alignment, and
which upon tilting the value and security document shows a first tilt or motion effect by at least two different groups of emboss elements having different characteristic parameters reflecting incident light in different spatial areas, and
the emboss elements having respectively a lateral dimension of more than 30 μm and a height of more than 10 μm,
wherein the first motif is combined with a second motif in the form of a pattern, symbol or coding,
wherein the second motif is arranged on the same side of the substrate as the first motif,
wherein the second motif is configured in the form of an emboss structure including of a plurality of raised emboss elements having areas of different orientation which are characterized by the parameters size, outline form, relief form, reflectivity and spatial alignment, and which show the second motif having a second dynamic tilt or motion effect by at least two different groups of emboss elements having different characteristic parameters reflecting incident light in different spatial areas, and in which the emboss elements have respectively a lateral dimension of less than 30 μm and a height of less than 10 μm,
wherein the pattern, symbol or coding of the first motif is adapted at least partially to the pattern, symbol or coding of the second motif.

2. The value and security document according to claim 1 , wherein a first motif reflects two or more different picture motifs in different spatial areas so that for the viewer upon a corresponding motion of the value and security document a first tilt or motion image arises, and
the second motif reflects two or more different picture motifs in different spatial areas so that for the viewer upon a corresponding motion of the value and security document a second tilt or motion image arises,
wherein the first tilt or motion image is at least partially adapted to the second tilt or motion image, or the second tilt or motion image is at least partially adapted to the first tilt or motion image.

3. The value and security document according to claim 1 , wherein the first motif is arranged on the substrate and the second motif is arranged on a safety thread or security strip which is applied on the substrate or is incorporated at least partially into the substrate.

4. The value and security document according to claim 3 , wherein the safety thread is a window or pendulum thread which is embedded into the substrate and at certain places of the substrate is guided to the surface of the substrate,
wherein the first motif and the second motif are arranged in register to each other.

5. The value and security document according to claim 3 , wherein the ink layer is executed translucent and is arranged in at least one partial region above the safety thread or security strip.

6. The value and security document according to claim 1 , wherein the ink layer comprises at least one effect ink.

7. The value and security document according to claim 1 , wherein a laser inscription is incorporated into at least one side of the substrate such that the laser inscription overlaps the first motif as well as the second motif at least partially.

8. The value and security document according to claim 1 , wherein the first motif and the second motif in their interaction form the common third motif.

9. A method for manufacturing a value and security document which is formed by a substrate having a front side and a back side,
wherein on the front side or back side of the substrate an ink layer is applied which forms a first motif in the form of a pattern, sign or coding,
wherein the first motif is configured in the form of an emboss structure comprising a plurality of raised emboss elements having areas of different orientation which are characterized by the parameters size, outline form, relief form, reflectivity and spatial alignment, and
which upon tilting the value and security document shows a first tilt or motion effect by at least two different groups of emboss elements, having different characteristic parameters, reflecting incident light in different spatial areas, and the emboss elements having respectively a lateral dimension of more than 30 μm and a height of more than 10 μm,
wherein the first motif is combined with a second motif in the form of a pattern, symbol or coding, and
wherein the second motif is applied to the same side of the substrate as the first motif,
wherein the second motif is configured in the form of an emboss structure which is formed by a plurality of raised emboss elements having areas of different orientation which are characterized by the parameters size, outline form, relief form, reflectivity and spatial alignment, and
which form the second motif having a second tilt or motion effect by at least two different groups of emboss elements, having different characteristic parameters, reflecting incident light in different spatial areas, and in which the emboss elements have respectively a lateral dimension of less than 30 μm and a height of less than 10 μm,
wherein the pattern, symbol or coding of the first motif is adapted at least partially to the pattern, symbol or coding of the second motif.

10. The method according to claim 9 , wherein the ink layer is imprinted on the substrate with a screen printing process or a flexographic printing process.

11. The method according to claim 10 , wherein the ink layer comprises an effect ink.

12. The method according to claim 10 , wherein the ink layer is embossed by an intaglio blind embossing.

Assignees

• Giesecke & Devrient Currency Technology Gmbh

Inventors

• Mengel Christoph
• Franz Peter
• Huynh Thanh-Hao
• Mayer Karlheinz
• Fuhse Christian
• Bichlmeier Stefan
• Pfeiffer Matthias
• Baldus Christof

Classifications

• B42D25/378

  Special inks · CPC title

• B42D25/355

  Security threads · CPC title

• B41M1/10

  Intaglio printing {; Gravure printing} · CPC title

• B42D25/425

  by deformation, e.g. embossing · CPC title

• B41M1/12

  Stencil printing; Silk-screen printing · CPC title