Security element having at least one first color change area - Patents.com

Abstract

The invention relates to a security element (1) for securities or security papers, which security element (1) has at least one first color change area (2), which further has at least one second area (3) different from the first color change area (2) and which is provided with a structure (4), which reflects an image motif into different spatial areas in such a way that a moving image appears for an observer upon a corresponding movement of a light source (5) and / or a change of the observation angle, and in which a movement of the image motif and a color change effect occur simultaneously upon movement of the light source and / or a change of the observation angle.

Description

[Technical field]

[0001] The present invention relates to a security element for securities or security papers, which security element comprises at least one first colour change area. [Background technology]

[0002] Security elements of the kind mentioned at the outset are typically used to increase the security against counterfeiting of securities or security papers, such as banknotes, identity cards, credit cards, bank cards, tickets, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] European Patent No. 2782765 [Patent Document 2] European Patent No. 2885135 [Patent Document 3] International Publication No. 2015 / 107347 [Patent Document 4] US Patent Publication No. 10189294 [Patent Document 5] European Patent Application Publication No. 3362827 [Patent Document 6] European Patent Application Publication No. 2632739 Summary of the Invention [Problem to be solved by the invention]

[0004] It is an object of the present invention to provide a security element which has increased security against counterfeiting. [Means for solving the problem]

[0005] This problem is solved by a security element of the type according to the invention mentioned at the beginning, which further comprises at least one second region which is different from the first region and which is provided with a structure which reflects the image motif into different spatial regions in such a way that when the light source is moved and / or the observation angle is changed a corresponding moving image is visible to the observer, and when the light source is moved and / or the observation angle is changed a simultaneous movement of the image motif and a color-changing effect occurs. Effect of the Invention

[0006] The solution according to the invention significantly increases security against counterfeiting by combining a moving image with a color-changing effect. For example, the invention makes it possible to simultaneously perceive both effects with the naked eye by using certain types of light sources. For example, when using a point light source, both the color-changing effect and the moving image are clearly visible.

[0007] According to an advantageous embodiment, the at least one first color change area may comprise a layer with a color change pigment, in particular an interference pigment, a pigment with a color change thin film structure, or a liquid crystal pigment, or a color change thin film structure.

[0008] Additionally, the at least one first color changing region may comprise at least one liquid crystal layer, particularly at least one cholesteric liquid crystal layer.

[0009] Preferably, a color-changing effect-enhancing layer, in particular a layer of a dark color and / or a layer of a metal oxide, for example a substoichiometric aluminum oxide, is provided on the side of the first color-changing layer of the first region opposite the viewing side. The color-changing effect-enhancing layer can be applied, for example, on the liquid crystal layer or on the layer of color-changing pigments, so that the layer of color-changing pigments or the liquid crystal layer is arranged between the color-changing effect-enhancing layer and the support layer. However, the color-changing effect-enhancing layer can also be arranged between the support layer and the layer of color-changing pigments or at least one liquid crystal layer. Furthermore, it is also possible that the support layer is arranged between the color-changing effect-enhancing layer and the layer of color-changing pigments or the liquid crystal layer.

[0010] It should be mentioned here without hesitation that one or more intermediate layers may be arranged between the at least one color-changing effect enhancing layer and the supporting layer and / or the at least one layer of color-changing pigment or the at least one liquid crystal layer, respectively. It should also be mentioned without hesitation that the concept of layer in this specification should be understood as meaning that one layer may be composed of multiple partial layers.

[0011] In a further embodiment of the invention, the color-changing thin-layer structure or the color-changing pigment with a color-changing thin-layer structure can have at least one absorbing layer and at least one spacer layer made of a dielectric material. In addition, the thin-layer structure can have at least one reflecting layer, the spacer layer being arranged between the reflecting layer and the absorbing layer.

[0012] The security element has a support layer made of plastic, in particular a light-transmitting and / or thermoplastic plastic, which is preferably made of polyimide (PI), polypropylene (PP), uniaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylenenaphthalate (PEN), liquid crystal polymer (LCP), polyester, polybutyleneterephthalate (PBT), polyethyleneterephthalate (PEI), polyphenylenesulfide (PPS), polyphenylenesulfide (PPE ... or made from at least one of the materials from the group consisting of: polypropylene (PET), polyamide (PA), polycarbonate (PC), cycloolefin copolymer (COC), polyoxymethylene (POM), acrylonitrile-butadiene-styrene (ABS), polyvinyl chloride (PVC), ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene-tetrafluoroethylene-hexafluoropropylene-fluoro terpolymer (EFEP), and / or mixtures of these materials and / or copolymers of these materials.

[0013] It has been found to be particularly preferred if the thickness of the support layer is between 5 μm and 1000 μm, particularly preferably between 10 μm and 50 μm.

[0014] In another preferred embodiment, the at least one absorber layer comprises or is made of at least one metallic material, in particular selected from the group of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminum, silver, copper and / or alloys of these materials.

[0015] According to one preferred configuration of the invention, the at least one spacer layer is made of at least one low refractive index dielectric material having a refractive index of 1.65 or less, in particular aluminium oxide (Al2O3), metal fluorides, such as magnesium fluoride (MgF2), aluminium fluoride (AlF3), silicon oxide (SiOx), silicon dioxide (SiO2), cerium fluoride (CeF3), sodium aluminium fluoride (e.g. Na3AlF6 or Na5Al3F14), neodymium fluoride (NdF3 At least one low refractive index dielectric material having a refractive index of 1.65 or less, selected from the group consisting of lanthanum fluoride (LaF3), samarium fluoride (SmF3), barium fluoride (BaF2), calcium fluoride (CaF2), lithium fluoride (LiF), low refractive index organic monomers and / or low refractive index organic polymers, in particular 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), prion oxide at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of raceodymium (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (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 made from at least one of said materials.

[0016] The at least one reflective layer is made of at least one metallic material, in particular at least one metallic material selected from the group of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt, and palladium, or alloys of said materials, in particular cobalt-nickel alloys, or at least one high refractive index dielectric material with a refractive index greater than 1.65, in particular 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 and at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group consisting of 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 trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers, or made from at least one of said materials.

[0017] In the case of advantageous embodiments, the structures of the second region may be formed as diffractive structures, as micromirrors or as radiation-optically useful facets.

[0018] Furthermore, a number of structures may form a group, the orientations of which are coordinated with one another to image a single point of the image motif in an observation space, the image motif being composed of the sum of all points formed by the group, and a movement of the point is generated in the observation space by changing the direction of incidence of the light generated by the light source and / or when the observation angle is changed.

[0019] It is particularly preferred if the structures are formed in the support layer by means of a molding device, in particular by embossing.

[0020] It has been found to be advantageous if the structure is embossed by a molding device either directly on the support layer or with a further intermediate layer arranged thereon, and is formed in an applied layer, in particular in an embossed lacquer layer.

[0021] The layer in which the structures are formed preferably has a thickness of 0.5 to 300 μm, in particular 0.8 to 50 μm, advantageously 1 to 10 μm.

[0022] In a further embodiment of the security element according to the invention, the security element comprises at least one reflective layer on the side of the support layer facing away from the structure and / or a reflective layer is arranged between the support layer and the structure and / or the structure is coated with at least one reflective layer, the at least one reflective layer comprising at least one metallic material, in particular at least one metallic material selected from the group of silver, copper, aluminium, gold, platinum, niobium, tin or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of said materials, in particular cobalt-nickel alloys, or at least one high refractive index dielectric material with a refractive index greater than 1.65, in particular zinc sulphide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), indium tin oxide (ITO), pentoxide (PtO2), indium tin ... Tantalum (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), It comprises or is made from at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (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.

[0023] The security element may comprise a machine-readable feature, which is in particular a magnetic code, a conductive layer, an electromagnetic wave absorbing material and / or an electromagnetic wave re-emitting material.

[0024] Furthermore, the security element may comprise additional layers, in particular protective lacquers, heat-sealing lacquers, adhesives, primers and / or metal foils.

[0025] For a better understanding of the invention, the invention will now be described in more detail with reference to the following drawings, in which:

[0026] The figures are each highly simplified schematic diagrams. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 shows a diagram of a security element according to the invention. [Diagram 2] FIG. 2 shows a cross-sectional view of a first embodiment of a security element. [Diagram 3] FIG. 3 shows a cross-sectional view of a second embodiment of a security element. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] It should be noted at the outset that in the embodiments described as different, the same parts are given the same reference numbers or the same component numbers. The disclosure contained in the entire description can be transferred accordingly to the same parts having the same reference numbers or the same component numbers. Also, the descriptions of selected positions in the description, such as above, below, side, etc., refer to the figures directly described and illustrated, and when the positions are changed, these position descriptions can be transferred accordingly to the new positions.

[0029] The drawings will now be described in general terms.

[0030] According to Fig. 1, a security element 1 according to the invention for securities or security paper has one or more first color change areas 2. In addition, the security element has one or more second areas 3 with structures different from the first color change area 2, which reflect the image motif 4a into different spatial areas, so that when the light source is moved and / or the observation angle is changed, a corresponding moving image occurs for the observer.

[0031] In figure 2 the structure is given the reference number 4 and the light source the reference number 5. Upon movement of the light source 5 and / or upon changing the observation angle, a simultaneous movement and colour-changing effect of the image motif occurs.

[0032] Depending on the lighting, either both effects can be perceived simultaneously or only one of them: for example, when using a point light source, both the color-changing effect and the moving image can be clearly perceived, whereas with diffuse lighting the moving image is not perceptible or is only perceived very weakly.

[0033] 2 and 3, the color-changing region 2 may comprise a color-changing layer 6, which may comprise, for example, a color-changing pigment, a color-changing liquid crystal layer or a color-changing thin-layer structure 7. Said region 3, which is different from the first region 2, comprises a structure 4. Both regions 2 and 3 are shown adjacent and side-by-side in both embodiments.

[0034] The color-changing thin-layer structure 7 may comprise an absorbent layer 8 and at least one spacer layer 9 made of a dielectric material. In addition, the thin-layer structure 7 may comprise a reflecting layer 10. As shown in Figures 2 and 3, the spacer layer 9 is arranged between the reflecting layer 10 and the absorbent layer 8. If, for example, a lacquer containing color-changing pigments is used to realize the layer 6, these color-changing pigments can each comprise the thin-layer structure 7 as just explained. The absorbent layer 8 may comprise a metallic material selected in particular from the group of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminum, silver, copper and / or alloys of said materials or may be made of at least one of said materials.

[0035] Furthermore, the at least one spacer layer 9 may be made of at least one low refractive index dielectric material, for example with a refractive index of 1.65 or less, in particular aluminium oxide (Al2O3), metal fluorides, for example magnesium fluoride (MgF2), aluminium fluoride (AlF3), silicon oxide (SiOx), silicon dioxide (SiO2), cerium fluoride (CeF3), sodium aluminium fluoride (for example Na3AlF6 or Na5Al3F14), neodymium fluoride (NdF3), lanthanum fluoride (LuF3), lanthanum fluoride (LuF3), lanthanum fluoride (LuF4), lanthanum fluoride (LuF4), lanthanum fluoride (LuF5), lanthanum fluoride (LuF5), lanthanum fluoride (LuF6), lanthanum fluoride (LuF5 ... At least one low refractive index dielectric material having a refractive index of 1.65 or less, selected from the group consisting of tungsten fluoride (LaF3), samarium fluoride (SmF3), barium fluoride (BaF2), calcium fluoride (CaF2), lithium fluoride (LiF), low refractive index organic monomers and / or low refractive index organic polymers, or at least one high refractive index dielectric material having a refractive index of more than 1.65, in particular zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2 O3), 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 The material may comprise or be made of at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group consisting of (Pr6O11), samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (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.

[0036] Furthermore, the reflective layer 10 may be made of at least one metallic material, in particular selected from the group of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium, or alloys of said materials, in particular cobalt-nickel alloys, or at least one high refractive index dielectric material with a refractive index greater than 1.65, in particular 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, for example iron(II,III) oxide (Fe3O4). and at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of 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 trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers, or made from at least one of said materials.

[0037] Instead of the thin layer element 7, color-changing pigments can also be used. The color-changing pigments can have, for example, a thin layer structure, which can in particular be constructed symmetrically on both sides of the reflector, i.e. with a layer sequence of absorber / spacer layer / reflector / spacer layer / absorber. Such pigments do not necessarily require a color-changing effect-enhancing layer. However, color-changing pigments can also be formed by simpler interference pigments, for example silica flakes or mica, which may require a color-changing effect-enhancing layer, in particular a layer of a dark color and / or a layer of a metal oxide, such as low-stoichiometric aluminum oxide. Furthermore, color-changing pigments can also be realized as LC pigments (liquid crystal pigments).

[0038] Furthermore, the colour changing region 2 may comprise one or more liquid crystal layers, in particular one or more cholesteric liquid crystal layers.

[0039] It is preferred that in the first region opposite the observation side of the first color changing layer a color changing effect enhancing layer, in particular a layer of a dark color and / or a layer of a metal oxide, for example a low stoichiometric aluminum oxide, is located.

[0040] For example, the color-changing effect enhancing layer can be applied onto the liquid crystal layer or onto the layer of color-changing pigment, so that the layer of color-changing pigment or the liquid crystal layer is arranged between the color-changing effect enhancing layer and the support layer. However, the color-changing effect enhancing layer can also be arranged between the support layer and the color-changing pigment or at least one liquid crystal layer. Furthermore, it is also possible for the support layer to be arranged between the color-changing effect enhancing layer and the layer of color-changing pigment or the liquid crystal layer.

[0041] One or more intermediate layers may be arranged between the color-changing effect enhancing layer and the supporting layer and / or the layer of color-changing pigment or the liquid crystal layer, respectively.

[0042] The security element 1 shown in figures 2 and 3 can have a support layer 11 made of plastic, in particular a light-transmitting and / or thermoplastic plastic, preferably made of polyimide (PI), polypropylene (PP), uniaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), polyetherketone (PEK), polyethyleneimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylenenaphthalate (PEN), liquid crystal polymer (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate. (PC), cycloolefin copolymer (COC), polyoxymethylene (POM), acrylonitrile-butadiene-styrene (ABS), polyvinyl chloride (PVC), ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene-tetrafluoroethylene-hexafluoropropylene-fluoro terpolymer (EFEP), and / or mixtures and / or copolymers of said materials, or made from at least one of the materials.

[0043] The thickness of the support layer 11 is preferably 5 μm to 1000 μm, particularly preferably 10 μm to 50 μm. The structures 4 can be formed in a known manner as diffractive structures, as micromirrors or as facets useful in radiation optics. The formation of the structures 4 as diffractive structures is known, for example, from US Pat. No. 5,399,411 and US Pat. No. 5,499,421 and US Pat. No. 5,523,636. In contrast, the formation of the structures 4 as micromirrors is known to the skilled worker, for example, from US Pat. No. 5,499,421 and US Pat. No. 5,523,636. The faceted shaping of the structures 4 is evident, for example, from US Pat. No. 5,523,636. The formation of the structures 4 for generating moving images is known to the skilled worker, and will not be described further here in order to avoid unnecessary ramblings.

[0044] A number of structures 4 may form a group, the orientation of which is coordinated with one another to image one point 12 of the image motif 4a in the observation space. The image motif 4a is composed of the sum of all points 12 formed by the group. By changing the direction of incidence of the light generated by the light source 5 and / or when changing the observation angle, a movement of the point 12 is generated in the observation space or such a movement of the image motif 4a is perceived. Thus, when the light source 5 is moved and / or when the observation angle is changed, the image motif 4a, which here takes the form of a circle, moves from the position indicated by reference I in FIG. 1 to the position indicated by reference II and vice versa.

[0045] The structures 4 may be molded into a layer 13, in particular an embossed lacquer layer, applied onto the support layer 11. The structures are preferably embossed by means of a molding device. The layer 13 in which the structures 4 are molded preferably has a layer thickness of 0.5 to 300 μm, particularly preferably 0.8 to 50 μm, advantageously 1 to 10 μm.

[0046] To produce the security element 1 according to the invention, the support 11 can be entirely or partially coated with the layers 10 and 14. The resulting layered composite can then be entirely or partially provided with the layer 13, and the structure 4 can be formed in this layered composite, for example by embossing. The individual layers of the thin layer element 7 can then be applied in order to form the color change area. In this case, it is also possible to apply the thin layer element 7 or the color change layer only in the area of ​​the color change area 2, or to also apply the individual layers of the thin layer element 7 or the color change layer in the area of ​​the structure 4, and to remove them in a known manner, for example by using a wash ink. Needless to say, the embodiment just described is only one example, and there are many methods generally known to the skilled person for realizing such structures corresponding to the security element 1 according to the invention.

[0047] Between the layer 13 and the support layer 11, further layers may be arranged, for example an adhesive layer or a reflective layer 14. The reflective layer 14 reflects the light rays passing through the structure 4, so that the point 12 can be imaged in the observation space. The embodiment shown here is particularly advantageous with respect to diffractive structures. As can be seen from FIG. 2, the reflective layer 14 can form one layer together with the reflective layer 10 of the thin-layer structure 7 and can also be manufactured from the same material as the reflective layer 10. It should be mentioned here that the reflective layer 14a can also be arranged on the structure 4, so that the structure 4 is located between the reflective layer 14a and the support layer 11. The reflective layer 14a in this case follows the shape of the structure if it is arranged on the structure 4. The structure 4 can be partially or completely covered with the reflective layer 14a. The layer 14a can be provided instead of or in addition to the layer 14.

[0048] Instead of using a separate layer 13 in which the structures 4 are formed, the structures 4 may be formed directly in the support layer 11 by means of a molding device, in particular by embossing, as shown in Figure 3. In such a case, on the side of the support layer facing away from the structures 4, a reflective layer 14 may be applied and / or the structures 4 may be covered fully or partially with a layer 14a.

[0049] If the structure 4 is formed as a micromirror or facet, a reflective layer 14a may also be disposed on the structure 4 or the structure 4 may be at least partially covered with a layer 14a.

[0050] The reflective layer 14 and the layer 14a preferably comprise a metallic material, in particular at least one metallic material selected from the group of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium, or alloys of said materials, in particular cobalt-nickel alloys, or at least one high refractive index dielectric material with a refractive index greater than 1.65, in particular 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 oxide, for example iron(II,III) oxide (Fe3O4). and at least one high refractive index dielectric material having a refractive index greater than 1.65, selected from the group of 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 trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high refractive index organic monomers and / or high refractive index organic polymers, or made from at least one of said materials.

[0051] Finally, as a final note, the embodiment shown in FIG. 3 can be modified so that support layer 11 functions as spacer layer 8 and reflective layer 14 functions as reflective layer 10, such that only layers 14, 11 and 9 are present in color change region 2.

[0052] All numerical values ​​relating to value ranges in this description are meant to include any and all subranges therein, for example, the numerical value 1 to 10 means that all subranges starting from a lower limit of 1 and an upper limit of 10 are included together, i.e. all subranges beginning with a lower limit of 1 or more and ending with an upper limit of 10 or less, for example 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

[0053] Finally, it is pointed out that, for the sake of formality, the elements have in part been shown not to scale and / or enlarged and / or reduced in size in order to allow a better understanding of the structure. The following are some aspects of the embodiment of the present invention. [Aspect 1] A security element (1) for securities or security papers, said security element (1) having at least one first color change area (2), 1. A security element (1) for securities or security papers, characterized in that the security element (1) further comprises at least one second region (3) different from the first color change region (2) and provided with a structure (4), which reflects the image motif (4a) into different spatial regions in such a way that upon movement of the light source (5) and / or upon a change of the observation angle a corresponding moving image is visible to the observer, and that upon movement of the light source and / or a change of the observation angle a simultaneous movement of the image motif and a color change effect occurs. [Aspect 2] Security element (1) according to embodiment 1, characterized in that the at least one first color change area (2) comprises a layer (6) with a color change pigment, in particular an interference pigment, a pigment with a color change lamella structure or a liquid crystal pigment, or a layer with a color change lamella structure (7). [Aspect 3] Security element (1) according to embodiment 1 or 2, characterized in that the at least one first color change area (2) has at least one liquid crystal layer, in particular at least one cholesteric liquid crystal layer. [Aspect 4] Security element (1) according to any one of the preceding aspects 1 to 3, characterized in that the at least one colour change area (2) has at least one colour change effect enhancing layer, in particular a layer of a dark colour and / or a layer of a metal oxide, such as low stoichiometric aluminium oxide. [Aspect 5] Security element (1) according to embodiment 2, characterised in that the colour-changing thin film structure (7) or the colour-changing pigment has at least one absorbing layer (8) and at least one spacer layer (9) made of a dielectric material. [Aspect 6] Security element (1) according to embodiment 5, characterized in that the color-changing thin-film structure (7) has at least one reflective layer (10), and the spacer layer (9) is arranged between the reflective layer (10) and the absorbent layer (8). [Aspect 7] The security element (1) has a support layer (11) made of plastic, in particular a light-transmitting and / or thermoplastic plastic, preferably made of one of the following materials: polyimide (PI), polypropylene (PP), uniaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polyether ketone (PEK), polyethylene imide (PEI), polysulfone (PSU), polyaryl ether ketone (PAEK), polyethylene naphthalate (PEN), liquid crystal polymer (LCP), polyester, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide ( 7. The security element (1) according to any one of the preceding aspects, characterized in that it comprises or is made from at least one material from the group consisting of: polyvinyl chloride (PVC), ethylene tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and ethylene-tetrafluoroethylene-hexafluoropropylene-fluoro terpolymer (EFEP), and / or mixtures and / or copolymers of said materials. [Aspect 8] 8. The security element (1) according to aspect 7, wherein the thickness of the support layer (11) is from 5 μm to 1000 μm, particularly preferably from 10 μm to 50 μm. [Aspect 9] 9. Security element (1) according to any one of aspects 4 to 8, characterized in that a colour-changing effect enhancing layer, in particular a layer of a dark colour and / or a layer of a metal oxide, such as low stoichiometric aluminium oxide, is applied on the at least one liquid crystal layer or on the at least one layer of colour changing pigment, whereby the at least one layer of colour changing pigment or the at least one liquid crystal layer is arranged between the at least one layer enhancing the colour changing effect and a support layer, or the at least one layer enhancing the colour changing effect is arranged between the support layer and the at least one layer of colour changing pigment or the at least one liquid crystal layer, or the support layer is arranged between the at least one layer enhancing the colour changing effect and the at least one layer of colour changing pigment or the at least one liquid crystal layer. [Aspect 10] 9. Security element (1) according to any one of aspects 5 to 8, characterized in that at least one absorbent layer (8) comprises or is made of at least one metallic material, in particular selected from the group of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminium, silver, copper and / or alloys of said materials. [Aspect 11] At least one spacer layer (9) is made of at least one high refractive index dielectric material with a refractive index of 1.65 or less, in particular aluminum oxide (Al 2 O 3 ), metal fluorides, such as magnesium fluoride (MgF 2 ), aluminum fluoride (AlF 3 ), silicon oxide (SiO x ), silicon dioxide (SiO2 ), 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 At least one low refractive index dielectric material having a refractive index of 1.65 or less, 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 trioxide (Se 2 O 3 ), tin oxide (SnO 2 ), tungsten trioxide (WO 3 11. The security element (1) according to any one of the aspects 5 to 10, characterized in that it comprises or is made of at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of: high refractive index organic monomers and / or high refractive index organic polymers. [Aspect 12] The at least one reflective layer (10) is made of at least one metallic material, in particular at least one metallic material selected from the group of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt, and palladium, or alloys of said materials, in particular cobalt-nickel alloys, or at least one high refractive index dielectric material with a refractive index greater than 1.65, in particular 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 12. The security element (1) according to any one of the embodiments 6 to 11, characterized in that it comprises or is made of at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of: high refractive index organic monomers and / or high refractive index organic polymers. [Aspect 13] A security element (1) according to any one of aspects 1 to 12, characterized in that the structures (4) in the second region (3) are formed as diffractive structures, as micromirrors or as radiation-optically effective facets. [Aspect 14] A security element (1) according to any one of aspects 1 to 13, characterized in that a plurality of structures (4) form a group, the orientation of which is coordinated with one another to image one point (12) of the image motif in an observation space, which image motif is composed of the sum of all points formed by the group, and in that a movement of the point (12) is generated in the observation space by changing the direction of incidence of the light generated by the light source and / or when changing the observation angle. [Aspect 15] A security element (1) according to any one of embodiments 6 to 14, characterized in that the structure (4) is formed in the support layer (11) by means of a molding device, in particular by embossing. [Aspect 16] Security element (1) according to any one of embodiments 6 to 15, characterized in that the structure (4) is molded into an applied layer (13), in particular into an embossed lacquer layer, in particular embossed by a molding device, either directly on the support layer (11) or with a further intermediate layer arranged thereon. [Aspect 17] Security element (1) according to embodiment 16, characterized in that the layer (13) on which the structures (4) are shaped has a layer thickness of 0.5 to 300 μm, in particular 0.8 to 50 μm, advantageously 1 to 10 μm. [Aspect 18] The security element (1) comprises at least one reflective layer on the side of the support layer (11) facing away from the structure (4) and / or a reflective layer (14) is arranged between the support layer and the structure (4) and / or the structure (4) is coated with at least one reflective layer (14a), which is advantageously made of at least one metallic material, in particular at least one metallic material selected from the group of silver, copper, aluminum, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium, or alloys of said materials, in particular cobalt-nickel alloys, or at least one high-refractive index dielectric material with a refractive index greater than 1.65, in particular 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 18. The security element (1) according to any one of the aspects 7 to 17, characterized in that it comprises or is made of at least one high refractive index dielectric material having a refractive index greater than 1.65 selected from the group of: high refractive index organic monomers and / or high refractive index organic polymers. [Aspect 19] A security element (1) according to any one of aspects 1 to 18, characterized in that the security element (1) comprises a machine-readable feature, the machine-readable feature being, in particular, a magnetic code, a conductive layer, an electromagnetic wave absorbing material and / or an electromagnetic wave re-emitting material. [Aspect 20] 20. The security element (1) according to any one of the preceding aspects, characterized in that the security element (1) has an additional layer, the additional layer comprising, in particular, a protective lacquer, a heat-sealing lacquer, an adhesive, a primer and / or a foil. [Explanation of symbols]

[0054] 1. Security Elements 2 areas 3 areas 4 Structure 4a Elephant motif 5 light source 6 layers 7 Thin layer structure 8 Absorbing Layer 9 Spacer layer 10 reflective layer 11 Support layer 12 points 13 layers 14 layers 14a layer

Claims

1. A security element (1) for securities or security papers, said security element (1) having at least one first color change area (2), said security element (1) further comprises at least one second area (3) with a structure (4) different from said first color change area (2), said at least one first color change area (2) comprises a layer (6) with a color change pigment or a layer with a color change thin film structure (7), said color change thin film structure (7) or said layer (6) with a color change pigment comprises at least one absorbing layer (8) and at least one spacer layer (9) made of a dielectric material, The security element (1) has a support layer (11) made of plastic, said security element (1) comprises at least one reflective layer on the side of the support layer (11) facing away from said structure (4) and / or a reflective layer (14) is arranged between said support layer and said structure (4), The structure (4) is not formed on the at least one first color change area (2); said color-changing thin layer structure (7) or said layer (6) with color-changing pigment is not formed on said at least one second region (3), A security element (1) for securities or security papers, characterized in that, upon movement of the light source (5) and / or a change of the observation angle, the structure reflects the image motif (4a) into different spatial regions in such a way that a corresponding moving image is visible to the observer, and, upon movement of the light source and / or a change of the observation angle, a simultaneous movement of the image motif and a color-changing effect occur such that the movement of the image motif and the color-changing effect can be simultaneously perceived by the naked eye.

2. 2. Security element (1) according to claim 1, characterised in that the at least one first colour change area (2) comprises at least one liquid crystal layer.

3. 3. Security element (1) according to claim 1 or 2, characterized in that said at least one first colour change area (2) comprises at least one colour change effect enhancing layer.

4. 2. Security element (1) according to claim 1, characterised in that the colour-changing thin-layer structure (7) has at least one reflective layer (10), and the spacer layer (9) is arranged between the reflective layer (10) and an absorbent layer (8).

5. Security element (1) according to claim 1, characterised in that the thickness of said support layer (11) is between 5 μm and 1000 μm.

6. A security element (1) as described in claim 3, characterized in that the layer (6) comprising the color-changing pigment or at least one liquid crystal layer is arranged between the color-changing effect enhancing layer and the support layer (11), or the color-changing effect enhancing layer is arranged between the support layer (11) and the layer (6) comprising the color-changing pigment or the at least one liquid crystal layer, or the support layer (11) is arranged between the color-changing effect enhancing layer and the layer (6) comprising the color-changing pigment or the at least one liquid crystal layer.

7. 7. Security element (1) according to any one of claims 1 to 6, characterized in that at least one said absorbing layer (8) comprises or is made of at least one metallic material selected from the group of nickel, titanium, vanadium, chromium, cobalt, palladium, iron, tungsten, molybdenum, niobium, aluminium, silver, copper and / or alloys of said metals.

8. 8. Security element (1) according to any one of claims 1 to 7, characterized in that at least one of said spacer layers (9) comprises or is made from at least one of said low refractive index dielectric material with a refractive index less than or equal to 1.65 or at least one high refractive index dielectric material with a refractive index greater than 1.

65.

9. 5. Security element (1) according to claim 4, characterized in that at least one of said reflective layers (10) comprises or is made from at least one of said metallic material and said high refractive index dielectric material, the refractive index of which is greater than 1.

65.

10. 10. Security element (1) according to any one of claims 1 to 9, characterized in that the structures (4) in the second region (3) are formed as diffractive structures, as micromirrors or as radiation-optically effective facets.

11. 11. A security element (1) according to any one of claims 1 to 10, characterized in that a number of said structures (4) form a group, the orientation of which is coordinated with one another to image one point (12) of the image motif in an observation space, said image motif being composed of the sum of all points formed by said group, and in that a movement of said point (12) is produced in said observation space by changing the direction of incidence of the light produced by the light source and / or when changing the observation angle.

12. 7. Security element (1) according to any one of the preceding claims, characterised in that the structure (4) is formed on the support layer (11) by means of a moulding device.

13. Security element (1) according to any one of claims 1 to 6 and 12, characterised in that the structure (4) is formed in a layer (13) applied directly on the support layer (11) or with further intermediate layers arranged thereon.

14. Security element (1) according to claim 13, characterised in that the layer (13) on which the structures (4) are formed has a layer thickness of 0.5 to 300 μm.

15. A security element (1) according to any one of claims 1 to 6, 12 and 13, characterized in that it comprises at least one further reflective layer (14a) covering the structure (4).

16. 16. A security element (1) according to any one of claims 1 to 15, characterised in that the security element (1) comprises a machine-readable feature, the machine-readable feature being a magnetic code, a conductive layer, an electromagnetic wave absorbing material and / or an electromagnetic wave re-emitting material.

17. 17. Security element (1) according to any one of claims 1 to 16, characterized in that the security element (1) has an additional layer, said additional layer comprising a protective lacquer, a heat-sealing lacquer, an adhesive, a primer and / or a foil.

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