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

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

Claims

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 m and a height of more than 10 m, 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 m and a height of less than 10 m, 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 m and a height of more than 10 m, 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 m and a height of less than 10 m, 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.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Specifically, there is schematically shown a detail of a value and security document according to the invention:

(2) FIG. 1 having a first motif on a safety thread and a second motif in the form of an oval imprint in a first embodiment,

(3) FIG. 2 having a first motif on a safety thread and a second motif in the form of an oval imprint in a second embodiment,

(4) FIG. 3 having a first motif on a safety thread and a second motif from an imprint in the form of a numeral,

(5) FIG. 4 having a first motif on a safety thread and a second motif from an imprint in the form of a section of a numeral,

(6) FIGS. 5a and 5b having a first motif in the form of a strip-shaped, optically variable imprint and a second motif arranged thereabove which upon tilting shows the same change in motif.

DETAILED DESCRIPTION OF VARIOUS EMBODIMENTS

(7) FIG. 1 shows an oval imprint 1 which is imprinted on one side of a substrate of a bank note. The imprint 1 here consists of individual emboss structures not visible to a viewer, which show a second motif having a dynamic motion effect in the form of moving lines. Within the imprint 1, there are recesses 2 in the form of the text CT100 and recesses 3 in the form of the number 100.

(8) On the right next to the imprint 1, a safety thread 4 is located which is incorporated into the substrate of the bank note in the form of a windowed thread. Here, three regions of the windowed thread are arranged on the surface of the bank note and two regions lying between these regions of the pendulum thread in the interior of the substrate of the bank note and are therefore non visible. On the safety thread 4 there is located a first motif 5 which, just like the imprint, shows a motion effect having moving lines, wherein this motion effect is generated by an effect ink. In the effect ink, there are recesses 5 in the form of the text CT100.

(9) The numeral 100 here represents the denomination number of the bank note which is located therefore on the safety thread 4 as well as in the imprint 1. Thereby a viewer can recognize a logical relation between the motifs of the safety thread 4 and the imprint 1. Further, the viewer perceives that both motifs have the same or at least a very similar motion effect.

(10) FIG. 2 shows a similar embodiment example as FIG. 1, wherein here the oval imprint 1 is imprinted on the surface of the bank note such that it slightly overlaps the safety thread 4. Furthermore, recesses 6 in the form of the number 100 are so arranged in the imprint 1 that they apparently project about the edge of the imprint 1 and are continued or complemented beyond the imprint 1 as an imprint with black ink. Additionally, recesses 7 in the form of a part of the text CT100 are also arranged on the safety thread 4 such that they, with recesses in the imprint to 1 and a black imprint on the bank note, complement to the total text CT100.

(11) FIG. 3 shows an imprint 8 in the form of the numeral 100. The outline form of the imprint 8 therefore corresponds with the recesses on the safety thread 4.

(12) For the embodiment of FIG. 4, the center region of the safety thread 4 forms a part of the numeral 1 of the imprint 9. This region of the safety thread and the imprint 9 therefore complement to the numeral 100. An additional relation therefore results for a viewer between the safety thread 4 and the imprint 1.

(13) FIG. 5 shows in FIG. 5a in perpendicular plan view a detail of a side of a bank note having a strip-shaped security strip 10 and an optically variable imprint 12.

(14) The optically variable imprint 12 consists of an ink layer of an effect ink which in some regions shows the first motif 11 in the form of the numeral 50 which upon tilting changes into a 5-pointed star. The emboss structure 12 consists of parallel arranged emboss elements as they are known, for example from WO 2013/045055 A1, and in some regions shows the first motif 13.

(15) The security strip 10 likewise shows a tilt effect between the denomination number 50 and a 5-pointed star which forms the second motif here. In an particularly advantageous variant the 50 and the star can also appear bulged, which is particularly amazing and memorable for a smooth-feeling security strip, e.g. on foil basis. The realization of such tilt images with bulge effect is known, for example, from that WO 2014/060089 A2.

(16) Upon tilting the bank note around the axis AA backwards in the direction of the arrow, the representation of both motifs thus changes respectively from the numeral 50 to a 5-pointed star which additionally appears in the security strip 10 three-dimensionally and apparently bulges from the surface. Upon tilting the bank note around the axis AA, both motifs therefore show a tilt effect of the same kind.

(17) In a further variant the motifs can also tilt exactly opposite. Thus, in the stated example, the security strips 10 could show the star at the first tilting angle and the imprint 12 at the same tilting angle the 50, while at the second tilting angle the security strip 10 then shows the 50 and the imprint the star.