EP3800060A1 - Security element with at least one colour change area - Google Patents

Abstract

The invention relates to a security element (1) for securities or security papers, the security element (1) having at least one first color-tilting area (2), the security element (1) additionally having at least one second area ( 3) with structures (4) that reflect an image motif in different spatial areas, so that a movement image is created for the viewer when a light source (5) moves accordingly and / or when an observation angle changes, with the light source moving and / or changing The angle of observation creates a movement of the subject and a color shift effect at the same time.

Description

The invention relates to a security element for securities or security papers, the security element having at least one first color-changing area.

Security elements of the type mentioned are usually used to increase the security against forgery of securities or security papers, such as bank notes, ID cards, credit cards, ATM cards, tickets, etc.

The object of the present invention is to create a security element with increased security against forgery.

According to the invention, this object is achieved by a security element of the type mentioned at the outset in that the security element additionally has at least a second area different from the first area with structures that reflect an image motif into different spatial areas, so that for the viewer when a light source moves accordingly and / or when a viewing angle is changed, a moving image is created, with a movement of the image motif and a color shift effect simultaneously arising when the light source is moved and / or the viewing angle is changed.

The solution according to the invention significantly increases the security against forgery by combining the moving image with a color shift effect. For example, the invention makes it possible for certain types of light sources to be able to perceive both effects with the naked eye at the same time. For example, when using point light sources, both the color shift effect and the moving image can be clearly perceived.

According to an advantageous variant, the at least one first color-shifting area can have a layer with color-shifting pigments, in particular interference pigments, pigments with a color-shifting thin-layer structure or liquid crystal pigments, or a color-shifting thin-layer structure.

In addition, the at least one first color-shifting area can have at least one liquid crystal layer, in particular at least one cholesteric liquid crystal layer.

Preferably, on the side of the first color-shifting layer of the first region facing away from the visible side, there is a layer that reinforces the color-shifting effect, in particular a layer of dark color and / or a layer of metal oxides such as, for example, substoichiometric aluminum oxide. For example, the layer that enhances the color-shifting effect can be applied to the liquid-crystal layer or the layer of color-shifting pigments, so that the layer of color-shifting pigments or the liquid crystal layer is arranged between the layer that enhances the color-shifting effect and the carrier layer. The layer that enhances the color-shifting effect can, however, also be arranged between the carrier layer and the layer of color-shifting pigments or the at least one liquid crystal layer. In addition, it is also possible for the carrier layer to be arranged between the layer that enhances the color-shifting effect and the layer of color-shifting pigments or the liquid crystal layer.

At this point it should be pointed out that one or more intermediate layers can be arranged between the at least one layer that enhances the color-shifting effect and the carrier layer and / or the at least one layer of color-shifting pigments or the at least one liquid crystal layer. It should also be pointed out that the term layer in this document is to be understood in such a way that a layer can also be made up of several sub-layers.

In a further development of the invention, it can be provided that the color-shifting thin-film structure or the color-shifting pigments with a color-shifting thin-film structure have at least one absorber layer and at least one spacer layer made of a dielectric material. In addition, the thin-film structure can have at least one reflective layer, the spacer layer being arranged between the reflective layer and the absorber layer.

It is particularly preferred that the security element has a carrier layer made of plastic, in particular made of a translucent and / or thermoplastic plastic, the carrier layer preferably having at least one of the materials from the polyimide group (PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone, (PEEK) polyetherketone (PEK), polyethyleneimide (PEI), polysulfone ( PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM) , Acrylonitrile-butadiene-styrene (ABS), polyvinylcholride (PVC) ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene-tetrafluoroethylene-hexafluoropropylene-fluoroterpolymer (EFEP) and / or mixtures and / or mixtures and or comprises copolymers of these materials or is made from at least one of these materials.

It has been found to be particularly favorable that the carrier layer has a thickness of 5 μm to 1000 μm, particularly preferably a thickness of 10 μm-50 μm.

In a particularly preferred embodiment, it is provided that the at least one absorber layer has at least one metallic material, in particular selected from the group consisting of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminum, silver, copper and / or alloys of these materials or is made from at least one of these materials.

According to an advantageous development of the invention, it is provided that the at least one spacer layer has at least one low-index dielectric material with a refractive index less than or equal to 1.65, in particular selected from the group aluminum oxide (Al2O3), metal fluorides, for example magnesium fluoride (MgF2), aluminum fluoride ( AlF3), silicon oxide (SIOx), silicon dioxide (SiO2), cerium fluoride (CeF3), sodium-aluminum fluoride (e.g. Na3AlF6 or Na5Al3F14), neodymium fluoride (NdF3), lanthanum fluoride (LaF3), samarium fluoride (SmF3), barium fluoride (BaF3), barium fluoride (BaF3) (CaF2), lithium fluoride (LiF), low-refractive organic monomers and / or low-refractive organic polymers or at least one high-refractive dielectric material with a refractive index greater than 1.65, in particular selected from the group of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide ( TiO2), carbon (C), indium oxide (In2O3), indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide d (Y2O3), europium oxide (Eu2O3), iron oxides such as iron (II, III) oxide (Fe3O4) and iron (III) oxide (Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon c (Si3N4), silicon monoxide (SiO), selenium trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials.

It is preferred that the at least one reflective layer has at least one metallic material, in particular selected from the group consisting of silver, copper, aluminum, gold, platinum, niobium, tin, or from nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt-nickel alloys or of at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide ( In2O3), indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides such as iron (II, III) oxide (Fe3O4) and iron (III ) oxide (Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O2), praseodymium oxide (Pr6O3), samonium oxide (Sm2O3ioxide) , Silicon carbide (SiC), silicon nitride (Si3N4), silicon mo noxide (SiO), selenium trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials.

In a favorable embodiment, the structures of the second area can be designed as diffractive structures, as micromirrors or as ray-optically effective facets.

Furthermore, several structures can form a group, the orientations of which are coordinated with one another in such a way that they depict a point of the image motif in an observation space, the image motif being composed of the sum of all the points represented by the group and by changing a direction of incidence of the one generated by the light source Light and / or when the observation angle changes, a movement of the point is generated in the observation space.

The structures are particularly preferably introduced into the carrier layer by means of a molding device, in particular by means of an embossing process.

Furthermore, it has proven to be advantageous that the structures are formed in a layer applied directly to the carrier layer or with the arrangement of further intermediate layers, in particular an embossed lacquer layer, in particular embossed by means of a molding element.

The layer with the structures formed therein preferably has a layer thickness between 0.5-300 μm, in particular between 0.8-50 μm, preferably between 1-10 μm.

In a further embodiment of the security element according to the invention, it is provided that it has at least one reflective layer on a side of the carrier layer facing away from the structures and / or a reflective layer is arranged between the carrier layer and the structures and / or the structures with at least one reflective layer are coated, the at least one reflective layer preferably being a metallic material, in particular selected from the group consisting of silver, copper, aluminum, gold, platinum, niobium, tin, or of nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials , in particular cobalt-nickel alloys, or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides such as iron (II, III) oxide (Fe3O4) and iron (III) oxide (Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide ( HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (SiC), silicon nitride (Si3N4), silicon monoxide (SiO) Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials.

Furthermore, the security element can be equipped with machine-readable features, the machine-readable features in particular being magnetic codings, Electrically conductive layers, electromagnetic waves absorbing and / or re-emitting substances.

In addition, the security element can have additional layers, which additional layers comprise in particular protective lacquers, heat-sealing lacquers, adhesives, primers and / or foils

For a better understanding of the invention, it is explained in more detail with reference to the following figures.

Fig. 1

ein erfindungsgemäßes Sicherheitselement;

Fig. 2

einen Schnitt durch eine erste Ausführungsform eines Sicherheitselements;

Fig. 3

einen Schnitt durch eine zweite Ausführungsform eines Sicherheitselements.

They each show in a greatly simplified, schematic representation:

Fig. 1

a security element according to the invention;

Fig. 2

a section through a first embodiment of a security element;

Fig. 3

a section through a second embodiment of a security element.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference symbols or the same component names, whereby the disclosures contained in the entire description can be transferred accordingly to the same parts with the same reference symbols or the same component names. The position details selected in the description, such as above, below, to the side, etc., also relate to the figure immediately described and shown and these position details are to be transferred accordingly to the new position in the event of a change in position.

The figures are described across the board.

According to Fig. 1 a security element 1 according to the invention for securities or security papers has one or more first color-shifting areas 2. In addition, the security element has one or more second areas 3 different from the first area 2 with structures that reflect an image motif 4a in different spatial areas, see above that a movement image is created for the viewer with a corresponding movement of a light source and / or with a change in an observation angle.

In the Fig. 2 the structures are provided with the reference number 4 and the light source with the reference number 5. When the light source 5 is moved and / or the viewing angle is changed, a movement of the image motif and a color shift effect occur at the same time.

Depending on the lighting, both effects can be perceived at the same time or only one of the two effects. It has been found that, for example, when using point light sources, both the color shift effect and the moving image are clearly perceived, while, on the other hand, with diffuse lighting, the moving image cannot be perceived or is significantly weaker.

As from the Fig. 2 and 3 As can be seen, the color-shifting area 2 can have a color-shifting layer 6, for example with color-shifting pigments, a color-shifting liquid crystal layer or a color-shifting thin-layer structure 7. The area 3 described above and different from the first area 2 has the structures 4. The two areas 2 and 3 are shown adjacent to one another in the two exemplary embodiments.

The color-shifting thin-film structure 7 can have an absorber layer 8 and a spacer layer 9 made of a dielectric material. In addition, the thin-film structure 7 can have a reflective layer 10. As in Fig. 2 and 3 As shown, the spacer layer 9 is arranged between the reflective layer 10 and the absorber layer 8. If, for example, a paint with color-changing pigments is used to produce the layer 6, these can each have a thin-layer structure 7, as just described. The absorber layer 8 can comprise a metallic material, in particular selected from the group nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminum, silver, copper and / or alloys of these materials or from at least one of these Materials to be made.

Furthermore, the one spacer layer 9 can, for example, have at least one low-index dielectric material with a refractive index less than or equal to 1.65, in particular selected from the group aluminum oxide (Al2O3), metal fluorides, for example magnesium fluoride (MgF2), aluminum fluoride (AlF3), silicon oxide (SIOx), Silicon dioxide (SiO2), cerium fluoride (CeF3), sodium aluminum fluoride (e.g. Na3AlF6 or Na5Al3F14), neodymium fluoride (NdF3), lanthanum fluoride (LaF3), samarium fluoride (SmF3) barium fluoride (LiF2), calcium fluoride (CaF2), lithium fluoride , low-index organic monomers and / or low-index organic polymers or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), Indium oxide (In2O3), indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides such as play iron (II, III) oxide (Fe3O4) and iron (III) oxide (Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3) , Praseodymium oxide (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (SiC), silicon nitride (Si3N4), silicon monoxide (SiO), selenium oxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers / or comprise high refractive index organic polymers or be made from at least one of these materials.

In addition, the reflective layer 10 can contain at least one metallic material, in particular selected from the group silver, copper, aluminum, gold, platinum, niobium, tin, or from nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt Nickel alloys or at least one high-index dielectric material with a refractive index of greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), Indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides such as iron (II, III) oxide (Fe3O4) and iron (III) oxide ( Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O11), sampler oxide (Sm2O3), antioxidant oxide (Sm2O3) SiC), silicon nitride (Si3N4), silicon monoxide (SiO), selenium trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers or be made from at least one of these materials.

Instead of the thin-film element 7, color-shifting pigments can also be used. The color-shifting pigments can, for example, have a thin-layer structure which, in particular, can have a symmetrical structure on both sides of a reflector, that is to say can have a layer sequence of absorber / spacer layer / reflector / spacer layer / absorber. Such pigments do not necessarily need a layer that enhances the color shift effect. The color-shifting pigments can also be formed by simpler interference pigments, e.g. B. silica flakes or mica, which may require a layer that reinforces the color shift effect, in particular a layer of dark color and / or a layer of metal oxides such as, for example, substoichiometric aluminum oxide. Furthermore, the color-changing pigments can be implemented as LC pigments (liquid crystal pigments).

Furthermore, the color-shifting area 2 can have one or more liquid crystal layers, in particular one or more cholesteric liquid crystal layers.

Preferably, on the side of the color-shifting layer of the first region facing away from the visible side, there is a layer that reinforces the color-shifting effect, in particular a layer of dark color and / or a layer of metal oxides such as, for example, substoichiometric aluminum oxide.

For example, the layer that enhances the color-shifting effect can be applied to the liquid crystal layer or the layer of color-shifting pigments, so that the layer of color-shifting pigments or the liquid crystal layer is arranged between the layer that enhances the color-shifting effect and the carrier layer. The layer that enhances the color-shifting effect can, however, also be arranged between the carrier layer and the layer of color-shifting pigments or the at least one liquid crystal layer. In addition, it is also possible for the carrier layer to be arranged between the layer that enhances the color-shifting effect and the layer of color-shifting pigments or the liquid crystal layer.

One or more intermediate layers can also be arranged between the layer which reinforces the color-shifting effect and the carrier layer and / or the layer of color-shifting pigments or the liquid crystal layer.

In addition, the security element 1 according to Fig. 2 and 3 have a carrier layer 11 made of plastic, in particular made of a translucent and / or thermoplastic plastic. The carrier layer 11 preferably comprises at least one of the materials from the group polyimide (PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone, (PEEK ) Polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), acrylonitrile butadiene styrene (ABS), polyvinylcholride (PVC) ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene tetrafluoroethylene -Hexafluoropropylene fluoroterpolymer (EFEP) and / or mixtures and / or copolymers of these materials or is made from at least one of these materials.

The carrier layer 11 preferably has a thickness of 5 μm to 1000 μm, particularly preferably a thickness of 10 μm-50 μm. The structures 4 can be embodied in a manner known per se as diffractive structures, as micromirrors or as ray-optically effective facets. The formation of the structures 4 as diffractive structures is, for example, from EP2782765B1 and the EP2885135B1 as well as the WO2015107347A1 known. While an embodiment of the structures 4 as micromirrors, for example from the US10189294A1 as well as the EP3362827A1 is familiar to the person skilled in the art. A facet-like shape of the structures 4 is based, for example, on FIG EP2632739A1 emerged. Since the design of the structures 4 for generating movement images is familiar to the person skilled in the art, it will not be discussed in more detail at this point in order to avoid unnecessary expansiveness.

A plurality of structures 4 can form a group, the orientations of which are coordinated with one another in such a way that they image a point 12 of the image motif 4a in an observation space. The image motif 4a is composed of the sum of all points 12 represented by the group. By changing a direction of incidence of the light generated by the light source 5 or changing the observation angle, a movement of the point 12 in the observation space is generated or such a movement of the image motif 4a is perceived. Thus, when the light source 5 moves or when the viewing angle changes, the image motif 4a moves, here in the form of a circle, in Fig. 1 from the position marked I to the point marked II and vice versa.

The structures 4 can be formed in a layer 13 applied to the carrier layer 11, in particular an embossed lacquer layer. They are preferably embossed by means of an impression element. The layer 13 with the structures 4 formed therein preferably has a layer thickness between 0.5-300 μm, in particular between 0.8-50 μm, preferably between 1-10 μm.

To produce the security element 1 according to the invention, the carrier layer 11 can be completely or partially coated with the layer 10 and the layer 14. The layer composite resulting therefrom can then be completely or partially provided with the layer 13 and the structures 4 can be introduced into this, for example by embossing. The individual layers of the thin-film element 7 can be applied to this in order to produce the color-shifting area. Here, it is possible to apply the thin-film element 7 or the color-shifting layer only in areas of the color-shifting area 2 or also to apply the individual layers of the thin-layer element 7 or the color-shifting layer in the area of the structures 4 and, for example, using washing color in a manner known per se to remove. It goes without saying that the embodiments just described are only to be understood as examples and that a person skilled in the art is in principle familiar with many methods for realizing a structure that corresponds to the security element 1 according to the invention.

Further layers can be arranged between the layer 13 and the carrier layer 11, for example an adhesion promoter layer or also a reflective layer 14 of the reflective layer 14, light rays passing through the structures 4 can be reflected in order to image the point 12 in the observation space. The embodiment shown here is particularly advantageous for diffractive structures. How out Fig. 2 it can be seen that the reflective layer 14 can form a layer with the reflective layer 10 of the thin-film structure 7 and can also be made of the same materials as these. At this point it should be pointed out that a reflective layer 14a can also be arranged on the structures 4, so that the structures 4 come to lie between the reflective layer 14a and the carrier layer 11. In this case, the reflective layer 14a follows the shape of the structures when it is arranged on the structures 4. Here, the structures 4 can be partially or completely coated with the reflective layer 14a. The layer 14a can be provided instead of the layer 14 or in addition to it.

As an alternative to using a separate layer 13 in which the structures 4 are formed, the structures 4 can also be introduced directly into the carrier layer 11 by means of a molding device, in particular by means of an embossing process, as is the case in FIG Fig. 3 is shown. In this case, the reflective layer 14 can be applied to a side of the carrier layer facing away from the structures 4 and / or the structures 4 can be coated over the entire area or partially with the layer 14a.

Also in the case of the formation of the structures 4 as micromirrors or facets, reflective layer 14a can be arranged on the structures 4 or the structures 4 can be at least partially coated with the layer 14a.

The reflective layer 14 and the layer 14a preferably comprise a metallic material, in particular selected from the group silver, copper, aluminum, gold, platinum, niobium, tin, or from nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials , in particular cobalt-nickel alloys, or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), indium tin oxide (ITO), tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides such as iron (II, III) oxide (Fe3O4) and iron ( III) oxide (Fe2O3), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (SiC), silicon nitride (Si3N4), silicon monoxide (SiO), selenium oxide (Se2O3), tin oxide (SnO2), high-index tungsten trioxide ( organic monomers and / or high refractive index organic polymers or is made from at least one of these materials.

Finally, it should also be noted that the in Fig. 3 The embodiment shown could also be modified so that the carrier layer 11 could function as a spacer layer 8 and the reflective layer 14 as a reflective layer 10, so that only the layers 14, 11 and 9 are present in the color-shifting area 2.

All information on value ranges in the present description are to be understood in such a way that they include any and all sub-areas thereof, e.g. the information 1 to 10 is to be understood in such a way that all sub-areas, starting from the lower limit 1 and the upper limit 10, are also included , ie all sub-ranges begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, for example 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

For the sake of clarity, it should finally be pointed out that, for a better understanding of the structure, some elements have been shown not to scale and / or enlarged and / or reduced.

List of reference symbols

1

Security element

2

Area

3

Area

4th

Structures

4a

Motif

5

Light source

6th

layer

7th

Thin-film structure

8th

Absorber layer

9

Spacer layer

10

Reflective layer

11

Carrier layer

12th

Point

13th

layer

14th

layer

14a

layer

Claims (20)

Security element (1) for securities or security papers, the security element (1) having at least one first color-changing area (2), characterized in that the security element (1) additionally has at least one second area (3) different from the first area (2) ) with structures (4) which reflect an image motif (4a) in different spatial areas, so that a movement image is created for the viewer when a light source (5) moves accordingly and / or when an observation angle is changed, with movement of the light source and / or change of the viewing angle at the same time a movement of the picture motif and a color shift effect is created. The security element (1) according to claim 1, characterized in that the at least one first color-shifting area (2) has a layer (6) with color-shifting pigments, in particular interference pigments, pigments with a color-shifting thin-layer structure or liquid crystal pigments, or a layer with a color-shifting thin-layer structure (7 ) having. Security element (1) according to Claim 1 or 2, characterized in that the at least one first color-shifting region (2) has at least one liquid crystal layer, in particular at least one cholesteric liquid crystal layer. Security element (1) according to one of claims 1 to 3, characterized in that the at least one color-shifting area (2) has at least one layer that reinforces the color-shifting effect, in particular a layer of dark color and / or a layer of metal oxides such as substoichiometric aluminum oxide. The security element (1) according to claim 2, characterized in that the color-shifting thin-layer structure (7) or the color-shifting pigments has at least one absorber layer (8) and at least one spacer layer (9) made of a dielectric material. The security element (1) according to claim 5, characterized in that the thin-layer structure (7) has at least one reflective layer (10), the spacer layer (9) being arranged between the reflective layer (10) and the absorber layer (8). Security element (1) according to one of claims 1 to 6, characterized in that it has a carrier layer (11) made of plastic, in particular made of a translucent and / or thermoplastic plastic, the carrier layer preferably at least one of the materials from the group of polyimide ( PI), polypropylene (PP), monoaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone, (PEEK) polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU ), Polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystalline polymers (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymers (COC), polyoxymethylene (POM), Acrylonitrile-butadiene-styrene (ABS), polyvinylcholride (PVC) ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene tetrafluoro ethylene-hexafluoropropylene fluoroterpolymer (EFEP) and / or mixtures and / or copolymers of these materials comprises or is made from at least one of these materials. Security element (1) according to Claim 7, characterized in that the carrier layer (11) has a thickness of 5 µm to 1000 µm, particularly preferably a thickness of 10 µm-50 µm. Security element (1) according to one of claims 4 to 8, characterized in that on the at least one liquid crystal layer or the at least one layer of color-shifting pigments, the layer that enhances the color-shifting effect, in particular a layer of dark color and / or a layer of metal oxides such as substoichiometric aluminum oxide, is applied so that the at least one layer of color-shifting pigments or the at least one liquid crystal layer is arranged between the at least one layer that enhances the color shift effect and the carrier layer, or that the at least one layer that enhances the color shift effect Layer is arranged between the carrier layer and the at least one layer of color-shifting pigments or the at least one liquid-crystal layer, or that the carrier layer is arranged between the at least one layer that enhances the color-shifting effect and the at least one layer of color-shifting pigments or the at least one liquid crystal layer. Security element (1) according to one of claims 5 to 8, characterized in that the at least one absorber layer (8) has at least one metallic material, in particular selected from the group consisting of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum , Niobium, aluminum, silver, copper and / or alloys of these materials or is made from at least one of these materials. Security element (1) according to one of claims 5 to 10, characterized in that the at least one spacer layer (9) has at least one low-refractive dielectric material with a refractive index less than or equal to 1.65, in particular selected from the group aluminum oxide (Al ₂ O ₃ ) , Metal fluorides, for example magnesium fluoride (MgF ₂ ), aluminum fluoride (AlF ₃ ), silicon oxide (SIO _x ), silicon dioxide (SiO ₂ ), cerium fluoride (CeF ₃ ), sodium-aluminum fluoride (e.g. _{Na 3 AlF 6} or Na ₅ Al ₃ F ₁₄ ), neodymium fluoride (NdF ₃ ), lanthanum fluoride (LaF ₃ ), samarium _{fluoride (SmF 3} ), barium fluoride (BaF ₂ ), calcium fluoride (CaF ₂ ), lithium fluoride (LiF), low-breaking organic monomers and / or low-breaking organic polymers or at least one high-index dielectric material with a refractive index greater than 1.65, in particular selected from the group consisting of zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO ₂ ), carbon (C), indium oxide (In ₂ O ₃ ), indium-tin Oxide (ITO) , Tantalum pentoxide (Ta ₂ O ₅ ), cerium oxide (CeO ₂ ), yttrium oxide (Y ₂ O ₃ ), europium oxide (Eu ₂ O ₃ ), iron oxides such as iron (II, III) oxide (Fe ₃ O ₄ ) and iron (III) oxide (Fe ₂ O ₃ ), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO ₂ ), lanthanum oxide (La ₂ O ₃ ), magnesium oxide (MgO), neodymium oxide (Nd ₂ O ₃ ), praseodymium oxide ( Pr ₆ O ₁₁ ), samarium _{oxide (Sm 2} O ₃ ), antimony trioxide (Sb ₂ O ₃ ), silicon carbide (SiC), silicon nitride (Si ₃ N ₄ ), silicon monoxide (SiO), selenium _{oxide (Se 2} O ₃ ), tin oxide ( SnO ₂ ), tungsten trioxide (WO ₃ ), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials. Security element (1) according to one of claims 6 to 11, characterized in that the at least one reflective layer (10) has at least one metallic material, in particular selected from the group consisting of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel , Titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt-nickel alloys or at least one high-index dielectric material with a refractive index of greater than 1.65, in particular selected from the group of zinc sulfide (ZnS), zinc oxide (ZnO ), Titanium dioxide (TiO ₂ ), carbon (C), indium oxide (In ₂ O ₃ ), indium tin oxide (ITO), tantalum pentoxide (Ta ₂ O ₅ ), cerium oxide (CeO ₂ ), yttrium oxide (Y ₂ O ₃ ), Europium oxide (Eu ₂ O ₃ ), iron oxides such as iron (II, III) oxide (Fe ₃ O ₄ ) and iron (III) oxide (Fe ₂ O ₃ ), hafnium nitride (HfN), hafnium carbide (HfC), Hafnium oxide (HfO ₂ ), lanthanum oxide (La ₂ O ₃ ), magnesium oxide (MgO), neodymium oxide (Nd ₂ O ₃ ), praseodymium _{oxide (Pr 6} O ₁₁ ), samarium _{oxide (Sm 2} O ₃ ), antimony trioxide (Sb ₂ O ₃ ), silicon carbide (SiC), silicon nitride (Si ₃ N ₄ ), silicon monoxide (SiO), selenium trioxide (Se ₂ O ₃ ), tin oxide (SnO ₂ ), Tungsten trioxide (WO ₃ ), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials. The security element (1) according to any one of claims 1 to 12, characterized in that the structures (4) of the second region (3) are designed as diffractive structures, as micromirrors or as ray-optically effective facets. The security element (1) according to any one of claims 1 to 13, characterized in that several structures (4) form a group, the orientations of which are coordinated with one another in such a way that they image a point (12) of the image motif in an observation space, the image motif composed of the sum of all points (12) represented by the group and a movement of the point (12) in the observation space being produced by changing a direction of incidence of the light generated by the light source and / or changing the observation angle. Security element (1) according to one of Claims 6 to 14, characterized in that the structures (4) are introduced into the carrier layer (11) by means of an impression device, in particular by means of an embossing process. The security element (1) according to any one of claims 6 to 15, characterized in that the structures (4) are formed in a layer (13), in particular an embossed lacquer layer, applied directly to the carrier layer (11) or with the arrangement of further intermediate layers, in particular by means of of an impression element are embossed. Security element (1) according to claim 16, characterized in that the layer (13) with the structures (4) formed therein has a layer thickness between 0.5-300 µm, in particular between 0.8-50 µm, preferably between 1-10 µm having. The security element (1) according to any one of claims 7 to 17, characterized in that it has at least one reflective layer on a side of the carrier layer (11) facing away from the structures (4) and / or a reflective layer between the carrier layer and the structures (4) Layer (14) is arranged and / or the structures (4) are coated with at least one reflective layer (14a), wherein the at least one reflective layer is preferably a metallic material, in particular selected from the group of silver, copper, aluminum, gold, platinum , Niobium, tin, or from nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, in particular cobalt-nickel alloys, or at least one high-index dielectric material with a refractive index of greater than 1.65, in particular selected from Group zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO ₂ ), carbon (C), indium oxide (In ₂ O ₃ ), indium tin oxide (ITO), tantalum penta oxide (Ta ₂ O ₅ ), cerium oxide (CeO ₂ ), yttrium oxide (Y ₂ O ₃ ), europium oxide (Eu ₂ O ₃ ), iron oxides such as iron (II, III) oxide (Fe ₃ O ₄ ) and iron ( III) oxide (Fe ₂ O ₃ ), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO ₂ ), lanthanum oxide (La ₂ O ₃ ), magnesium oxide (MgO), neodymium oxide (Nd ₂ O ₃ ), praseodymium oxide (Pr ₆ O ₁₁ ), samarium _{oxide (Sm 2} O ₃ ), antimony trioxide (Sb ₂ O ₃ ), silicon carbide (SiC), silicon nitride (Si ₃ N ₄ ), silicon monoxide (SiO), selenium _{oxide (Se 2} O ₃ ), tin oxide (SnO ₂ ), tungsten trioxide (WO ₃ ), high refractive index organic monomers and / or high refractive index organic polymers or is made from at least one of these materials. Security element (1) according to one of the preceding claims, characterized in that the security element (1) is equipped with machine-readable features is, the machine-readable features being in particular magnetic codings, electrically conductive layers, substances that absorb and / or re-emit electromagnetic waves. The security element (1) according to any one of the preceding claims, characterized in that the security element (1) has additional layers, which additional layers include in particular protective lacquers, heat-sealing lacquers, adhesives, primers and / or foils

Images