DE102017003603A1 - Security element with colored feature area - Google Patents

Abstract

The invention relates to a security element (12) for securing security papers, value documents and other data carriers, having a colored feature area (14) with different colors. According to the invention, it is provided that
- the feature area (14) has at least two partial areas (22, 24) with relief structures (32, 34) of different surface geometry,
- The feature area (14) is provided with a coloring ink (40) having a colorant (42) and a plurality of platelet-shaped effect pigments (44), and
- The platelet-shaped effect pigments (44) in the two subregions (22, 24) by the different surface geometry of the relief structures (32, 34) are aligned differently, and the ink (40) thereby produces different color impressions in the two subregions.

Description

The invention relates to a security element for securing security papers, value documents and other data carriers, which has a colored feature area. The invention also relates to a method for producing such a security element as well as a correspondingly equipped data carrier.

Data carriers, such as valuables or identity documents, but also other valuables, such as branded articles, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction. In this context, it is known to produce a metallic appearance by printing effect inks containing platelet-shaped metal pigments. By coloring the binder of metal-pigmented effect inks it is also possible to obtain a metallic and at the same time colored appearance.

On this basis, the invention has for its object to provide a security element of the type mentioned above with an attractive visual appearance.

This object is solved by the features of the independent claims. Further developments of the invention are the subject of the dependent claims.

• - der Merkmalsbereich zumindest zwei Teilbereiche mit Reliefstrukturen unterschiedlicher Oberflächengeometrie aufweist,
• - der Merkmalsbereich mit einer farbgebenden Druckfarbe versehen ist, die ein Farbmittel und eine Vielzahl plättchenförmiger Effektpigmente aufweist, und
• - die plättchenförmigen Effektpigmente in den zwei Teilbereichen durch die unterschiedliche Oberflächengeometrie der Reliefstrukturen unterschiedlich ausgerichtet und/oder unterschiedlich von der Oberfläche der Reliefstruktur beabstandet sind, und die Druckfarbe dadurch in den beiden Teilbereichen unterschiedliche Farbeindrücke erzeugt.

According to the invention, a security element for securing security papers, value documents and other data carriers contains a colored feature area with different colors. It is envisaged that

• the feature area has at least two partial areas with relief structures of different surface geometry,
• the feature area is provided with a coloring ink comprising a colorant and a plurality of platelet-shaped effect pigments, and
• - The platelet-shaped effect pigments are differently aligned in the two sub-areas by the different surface geometry of the relief structures and / or spaced differently from the surface of the relief structure, and the ink thereby produces different color impressions in the two partial areas.

The two named subregions and possibly further subregions of the feature region are advantageously designed in the form of patterns, characters or codes.

Due to the different surface geometry of the relief structures, the two partial areas can already produce different visual appearances even when viewed. For example, the relief structures are formed in a first subregion in the form of holographic structures, in a second subregion in the form of small micromirrors and generate a holographic representation in the first subregion and in the second subregion a three-dimensionally protruding achromatic image. These different optical appearances based on the surface geometry of the relief structures are combined in the present invention with perfectly matched different color impressions in the two partial areas.

The term "color" is used in the present description as a generic term for the various color properties, namely the hue, the saturation and the brightness of a color impression. In some cases, the terms hue and color intensity are also used. Color means in particular color, that is, a color that is not black, white or gray or has a purely metallic appearance.

The different color impression in the two subregions may in particular consist of a different color intensity of the same hue, for example in a slightly reddish appearance on the one hand and an intense red appearance on the other.

The relief structures have elevations and depressions, wherein a survey together with the adjacent depressions is often referred to as a structural element of the relief structures. The structural elements may be formed, for example, by small micromirrors, microlenses, small prisms, or tri-, quadrilateral, or multi-sided pyramids. The structural elements typically have two or more flanks, which may be flat or curved. The lateral dimension of a structural element is referred to as the structural width, the vertical dimension as the structural depth.

The colorants, the platelet-shaped effect pigments and the relief structure are coordinated so that the different color impressions are generated.

Particularly preferably, the color impression in the first of the two subsections is (more) determined by the effect pigments and in the second of the two subregions (stronger) by the colorant.

If the effect pigments are spaced differently from the surface of the relief structure, a correspondingly different amount of colorant is used arranged between the effect pigments and the surface of the relief structure. The mean distance between the surface and the effect pigment determines the space available for the colorant. The distance can be adjusted (deliberately controlled) by selecting the size of the effect pigments as well as the shape and / or size of the structural elements of the relief structure.

In one embodiment, correspondingly different first and second amounts of colorant are arranged between the effect pigments and the relief structure in the two subareas, the first and the second subarea.

In a further preferred embodiment, the effect pigments in the first partial region are (essentially) flat on the surface of the relief. In the second subarea, the effect pigments are spaced from the surface. In the first part of the effect pigments are thus arranged without a gap. Consequently, there is no colorant between the relief surface and the effect pigment in the first subregion. In the second subarea, the effect pigments are present only in places on the surface of the relief structure. The effect pigment is therefore in the second subregion of the surface at a distance which is in particular a mean distance, for example based on the effect pigment.

There may be more than two subareas, for example a first subarea with distance-free arranged effect pigments, a second and third subarea with effect pigments spaced differently far from the relief.

In an advantageous embodiment, the relief structures in the two partial areas are formed by structural elements of a first or second structural width, wherein the ratio of the larger to the smaller structural width is greater than 1.5, preferably greater than 2.0, more preferably greater than 4.0, and most preferably greater than 8.0. On the other hand, the ratio of the larger to the smaller structure width is advantageously not too large and expediently less than 50, in particular less than 25.

Alternatively or additionally, it is advantageously provided that the relief structures in the two subregions are formed by structural elements of a first or second structure depth and the ratio of the larger to the smaller structure depth is greater than 1.2, preferably greater than 1.5, particularly preferably greater than 2 , 0 is.

With particular advantage, the relief structures in the first partial area have a smaller structural width and at the same time a greater structural depth than the relief structures in the second partial area.

The relief structure is advantageously formed in at least one subregion by a fine relief structure, advantageously a diffractive relief structure, in particular a hologram structure. Furthermore, the relief structure is advantageously formed in at least one subregion by a middle or coarse relief structure, in particular a micromirror structure, a microlens structure or a microcavity structure.

Fine relief structures consist of structural elements with a typical structure width of about 1 .mu.m and a structure depth which is above 200 nm, in particular between 200 nm and 1500 nm, depending on the desired intensity of the hue. Examples of fine relief structures are holgraphic structures. Medium relief structures consist of structural elements with a typical structure width of about 10 μm and a structure depth of up to 10 μm. Examples of medium relief structures are micromirror structures. Rough relief structures consist of structural elements with a typical structure width of about 15 to 30 .mu.m, in particular from 20 to 25 .mu.m, and a structural depth of up to 10 microns. Examples of coarse relief structures are microlens structures. In the case of the middle and coarse relief structures, the structural geometry, the structure width and the brilliance of the pigments are of particularly great importance, while in the case of the fine relief structures, the color intensity can be set particularly strongly by the structure depth.

The platelet-shaped effect pigments advantageously have a ratio of the largest to the smallest diameter (diameter-to-thickness ratio) which is more than 5: 1, preferably more than 10: 1, and particularly preferably more than 50: 1 or even more than 100: 1 is.

The largest diameter of the platelet-shaped effect pigments is preferably between 5 μm and 20 μm, preferably between 8 μm and 12 μm. Platelets with a largest diameter of about 10 microns have a high reflectivity, smaller platelets appear less metallic due to the increasing light scattering, which usually has a rather undesirable effect on the color of the ink. As platelet-shaped effect pigments, for example, those in the publications EP 1 689 586 B1 . WO 2010/069823 A1 and WO 2013/090983 A1 described particles and pigments in question.

In a particularly advantageous embodiment, it is provided that the platelet-shaped effect pigments have a largest diameter which is of the same order of magnitude as the largest flank width of the structural elements having the larger feature width and which is at least twice as large as the feature width of the feature elements having the smaller feature width. The flanks of the Structural elements with the larger structure width are designed to be particularly advantageous, so that the platelet-shaped effect pigments can deposit well on these flanks during printing. The flanks of the narrower structural elements can also be curved or irregular, as is typically the case with a holographic structure.

In an advantageous embodiment, the platelet-shaped effect pigments have a largest diameter which lies between the smaller and the larger of the structure widths of the structural elements of the two partial regions.

In a particularly preferred embodiment, the platelet-shaped effect pigments are metal pigments. In this case, the coloring printing ink forms a colored metallization of the relief structures, whereby the colored, metallic color impression differs in the two subregions. Advantageously, a partial area shows a weakly colored, predominantly metallic-looking appearance, while the other partial area appears with an intensely colored metallic color.

The metal pigments advantageously show the best possible non-leafing, so they are evenly distributed in a binder matrix on a smooth surface after application of the printing ink.

Examples of platelet-shaped metal pigments are PVD aluminum pigments, PVD brass pigments, PVD copper pigments, aluminum flakes or platelet-shaped nanoparticles.

In an alternative, likewise advantageous embodiment, the platelet-shaped effect pigments are color pigments.

In all designs, the platelet-shaped effect pigments can be both single-layered and multi-layered and, for example, consist of a support with a color or metal layer or a multi-layer interference structure.

The coloring agent of the coloring ink is preferably transparent or translucent and may be formed by color pigments or a dye.

For the printing ink, systems with a high proportion of solvent or water are preferred. Also, a high pigment / solids ratio is advantageous. Useful solvent formulations are based on nitrocellulose or polyvinyl butyral as main components, while aqueous systems are based on, for example, acrylates and / or polyurethanes. The contrast and the color intensity can also be adjusted in particular by the proportion of colorant, in particular on coloring pigments in the printing ink.

The relief structures are expediently formed in a transparent layer in order to enable viewing of the security element from the side of the relief structure. The transparent layer can be formed for example by a transparent embossing lacquer layer, in particular a UV-curing embossing lacquer layer, a thermoplastic layer, or a transparent foil, for example a thermoplastic foil.

In one development of the invention, it is provided that the feature area has at least one further subarea with different surface geometry and the platelet-shaped effect pigments are differently oriented in the at least one further subarea due to the different surface geometry of the relief structures, and the printing ink thereby has a different color impression from the two subareas generated

For example, partial areas with fine, medium and coarse relief structures may be provided and / or partial areas with different structural depths. In particular, in the case of fine relief structures, the depth of color can be determined by the texture depth.

The orientation of the effect pigments can be uniform in both subregions, for example, in each case parallel to the main surface but with different distances. However, the effect pigments can also be aligned in one subarea and be unaligned in the other subarea, ie, for example. with randomly distributed orientation. Combinations with more than two - such first and / or second - sections are provided.

The security element can also have further functional layers, protective lacquer layers and further authenticity features and can be provided with recesses in partial areas in order to permit a partial viewing. Recesses can be provided in particular in the coloring printing ink, wherein both the colorant and the effect pigments can be removed in the region of the recess, or even only the effect pigments can be removed or modified while the colorant remains in the layer.

The invention also includes a data carrier with a security element of the type described. The security element can be arranged in particular in a window region of the data carrier, for example via an opening or a transparent or translucent portion of the volume. The data carrier may in particular be a value document, such as a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also an identity card such as a credit card, a bank card, a cash card, an entitlement card, an identity card, or a pass personalization page.

• - ein Träger bereitgestellt und mit einer vorzugsweise transparenten Schicht versehen wird,
• - die Schicht in einem Merkmalsbereich mit zumindest zwei Teilbereichen mit Reliefstrukturen unterschiedlicher Oberflächengeometrie versehen wird,
• - der Merkmalsbereich mit einer fließfähigen farbgebenden Druckfarbe versehen wird, die ein Farbmittel und eine Vielzahl plättchenförmiger Effektpigmente aufweist, wobei die plättchenförmigen Effektpigmente in den zwei Teilbereichen durch die unterschiedliche Oberflächengeometrie der Reliefstrukturen unterschiedlich ausgerichtet und/oder unterschiedlich beabstandet vom Relief angeordnet werden, und die Druckfarbe dadurch in den beiden Teilbereichen unterschiedliche Farbeindrücke erzeugt.

The invention further includes a method for producing a security element of the type described above, in which

• a support is provided and provided with a preferably transparent layer,
• the layer is provided in a feature area with at least two partial areas with relief structures of different surface geometry,
• - The feature area is provided with a flowable coloring ink having a colorant and a plurality of platelet-shaped effect pigments, wherein the platelet-shaped effect pigments are arranged differently aligned and / or differently spaced from the relief in the two partial areas by the different surface geometry of the relief structures, and the printing ink This produces different color impressions in the two subregions.

Advantageously, the colorant and the platelet-shaped effect pigments are spatially separated, in particular in the vertical direction, during the application of the printing ink to the feature area in at least one of the partial areas. The colorant is arranged according to the distance between the effect pigment and the relief structure.

Further exemplary embodiments and advantages of the invention are explained below with reference to the figures, in the representation of which a representation true to scale and proportion has been dispensed with in order to increase the clarity.

• 1 eine schematische Darstellung einer Banknote mit einem erfindungsgemäßen Sicherheitselement in Form eines breiten Sicherheitsstreifens,
• 2 einen schematischen Querschnitt des Sicherheitsstreifens der 1 entlang der Linie II-II,
• 3 ein Ausführungsbeispiel einer Banknote mit einem Fensterbereich, über dem ein erfindungsgemäßes Sicherheitselement angeordnet ist, und
• 4 ein weiteres Ausführungsbeispiel einer Banknote mit einem über einem Fensterbereich angeordneten Sicherheitselement.

Show it:

• 1 a schematic representation of a banknote with a security element according to the invention in the form of a wide security strip,
• 2 a schematic cross section of the security strip of 1 along the line II-II,
• 3 an embodiment of a banknote with a window area, over which a security element according to the invention is arranged, and
• 4 a further embodiment of a banknote with a arranged over a window area security element.

The invention will now be explained using the example of security elements for banknotes and other value documents. 1 shows a schematic representation of a banknote 10 , which is provided with a security element according to the invention in the form of a wide security strip. However, the invention is not limited to security strips and banknotes, but can also be used, for example, in partially embedded security threads or in foil patches and cover foils which are arranged above an opaque area, a window area or a through opening of any desired data carrier.

The security strip 12 of the 1 shows in supervision in a feature area 14 a colored, metallic appearance with regionally different shades or color intensities, the areas of different color register exactly to the patterns 16 and signs 18 of the security strip 12 are arranged. As explained above, the term "color" is used as the parent term for the various color properties.

Coming back to the presentation of the 1 are the patterns 16 There for illustration schematically represented as geometric shapes, in practice, the patterns 16 but of course also more complex patterns, signs or codes, for example, architectural or technical subjects, nature motifs or portraits form.

When viewed in supervision shows the security element 12 register exactly in the areas of the pattern 16 and the number sequence 18 a slightly reddish and predominantly metallic looking appearance, while the surrounding background areas 15 appear with an intense red metallic color.

The basic structure of a security element according to the invention 12 and the coming to the patterns 16 and signs 18 adjusted different color impressions are now with reference to the 2 explained in more detail, which is a schematic cross section of the security element 12 along the line II-II of 1 shows. Here are in 2 only the layers of the layer structure which are essential for the present invention are shown, and possible further layers, such as adhesive layers, protective lacquer layers, further functional layers or a carrier foil have been omitted for the sake of simplification.

The security element 12 contains a transparent embossing lacquer layer 20 in which in the feature area 14 at least two subareas 22 . 24 are provided with relief structures of different surface geometry. In a first section 22 that the background area 15 of the 1 forms, the relief structures are thereby formed fine and deep, while in a second portion 24 whose outline is the pattern 16 of the 1 forms, are relatively coarse and flat.

und das Verhältnis der größeren zur kleineren Strukturtiefe beträgt $${\text{V}}_{\text{ST}}=\mathrm{0,8}\mathrm{\mu }\text{m}/\mathrm{0,5}\mathrm{\mu }\text{m=1}\text{,6}\text{.}$$

In concrete terms, the relief structures are in the first, fine subarea 22 through structural elements 32 formed with a structure width of 1 .mu.m and a pattern depth of 0.8 .mu.m, while the relief structures in the second, coarse portion 24 through structural elements 34 are formed with a structure width of 10 microns and a structure depth of 0.5 microns. The ratio of the larger to the smaller structure width is thus $${\text{V}}_{\text{SB}}=10\mathrm{\mu }\text{m}/1\mathrm{\mu }\text{m = 10}\text{, 0}\text{.}$$

and the ratio of the larger to the smaller structure depth is $${\text{V}}_{\text{ST}}=0.8\mathrm{\mu }\text{m}/0.5\mathrm{\mu }\text{m = 1}\text{, 6}\text{,}$$

The relief structures 32 of the first subarea 22 have at the same time a smaller structure width (1 μm) and a larger structure depth (0.8 μm) than the relief structures 34 of the second subarea 24 ,

On the feature area 14 with the two subareas 22 . 24 is a coloring ink 40 printed, which next to a translucent red colorant 42 a variety of platelet-shaped metal pigments 44 contains. The platelet-shaped metal pigments 44 have a high ratio of platelet diameter to platelet thickness of 20: 1 or more. The mean value of the largest platelet diameter (ie the diameter in the plane of the platelets) in the exemplary embodiment is about 10 .mu.m, while the platelet thickness is below 1 .mu.m, for example 200 nm. However, it is also possible to use substantially thinner platelets with platelet thicknesses down to 5 to 20 nm with advantage.

The different structure sizes of the structural elements 32 . 34 lead in the two subareas 22 . 24 to a different interaction of the red colorant 42 and the platelet-shaped metal pigments 44 with the embossed structure and in particular to a different, targeted spatial separation of colorant 42 and metal pigments 44 ,

In the first, fine section 22 the red colorant flows 42 after application of the printing ink 40 into the wells 36 the fine structural elements 32 while the platelet-shaped metal pigments 44 because of their size, the structural width of the structural elements 32 far exceeds, come to lie on the tops of the surveys (schematically in the left half of the 2 shown). When viewed from the side of the embossing lacquer layer 20 , so the bottom of the presentation of the 2 ago, the subregion generates 22 through with colorants 42 filled depressions of the structural elements 32 and the viewer 50 seen below the colorant 42 lying metal columns 44 an intense red-looking color impression.

In the second, coarse section 24 is the flank width of the structural elements 34 of the same order of magnitude as the platelet size of the metal pigments 44 , besides, are the structural elements 34 formed only with a shallow inclination. The metal pigment platelets 44 Therefore, lie down when printing the ink 40 in the subarea 24 largely on the flanks 38 the broad structural element 34 off while the flowable colorant 42 collects substantially over the platelet-covered structural elements (schematically in the right half of the 2 shown). When considering 50 from the side of the embossing lacquer layer 20 The partial area is created here 24 because of the dominant metallic reflection of the metal pigments 44 thus only a slightly reddish, predominantly metallic-looking color impression.

Because the different color impressions of the subregions 22 . 24 directly on the interaction between the characteristic properties of the metal pigments 44 or the colorant 42 On the one hand, and the surface geometry of the relief structures on the other hand, the different color impressions are automatically perfect to those through the structural elements 32 . 34 adapted areas. For example, the patterns 16 and signs 18 be formed by micromirror arrangements in which the individual micromirrors 34 have a dimension of about 10 μm, while the background area 15 through fine, holographic structures 32 with structure widths of the order of 1 micron is formed.

Instead of metal pigments 44 In principle, other platelet-shaped effect pigments, for example platelet-shaped color pigments, can also be provided in the printing ink.

When looking from the other side, so the top of the representation of 2 Here, an image would result that only or at least partially represents a negative image.

The security element 12 of the 1 and 2 For example, it can be produced by forming a carrier film with the transparent embossing lacquer layer 20 coated and the desired relief structure with the structural elements 32 . 34 in the embossing lacquer layer 20 is impressed. Then, a flowable coloring ink 40 with the red colorant 42 and the platelet-shaped metal pigments 44 printed on the embossed relief structure, wherein the colorant 42 and the metal pigments 44 as described above according to the local surface geometry of the subregions 22 . 24 spatially separate.

Subsequently, the security element 12 typically subjected to further processing steps, in which approximately recesses in the printing layer 40 be generated and / or other functional, protective or adhesive layers are applied. The finished security element can be placed on a volume such as the one in 1 banknote pasted or even partially embedded in a disk. It should be noted in the embodiment that the application or introduction takes place so that the finished security element 12 on viewing from the side of the embossing lacquer layer, so the bottom of the representation of the 2 is aligned.

The carrier film, on which the layer structure of the security element is built up in the production, can also be removed again after being transferred to a target substrate.

3 shows an embodiment of a banknote 60 with a window area 62 , above which a security element according to the invention 64 is arranged. The security element 64 is basically like the security element 12 of the 2 constructed, but contains additional viewing areas 66 passing through recesses in the paint layer 40 are formed. Concretely contains the security element 64 a transparent embossing lacquer layer 20 , which in a feature area two subareas 22 . 24 having relief structures of different surface geometry. On the embossing lacquer layer 20 is a print layer 40 provided, which also contains a plurality of platelet-shaped metal pigments in addition to a translucent, for example, red colorant. As already described above, the interaction between the metal pigments and the colorant on the one hand and the surface geometry of the relief structures on the other hand result in the first subregion 22 an intense red-metallic color impression and in the second part 24 a slightly reddish, strongly metallic-looking color impression.

The color layer 40 of the security element 64 is additionally with patterned recesses 66 Mistake. In the recessed areas 66 is the security element 64 transparent, so that in the transmitted light the pattern formed by the recesses becomes visible. The recesses 66 For example, by printing only by area printing of the color layer 40 be generated, or by local laser exposure of a first full-surface applied print layer.

Another, more complex embodiment of the invention is in 4 shown. In this embodiment, a banknote 70 in a window area 72 with a security element according to the invention 74 Mistake. The security element 74 is basically like the security element 64 of the 3 constructed, but also contains a second embossing lacquer layer 80 and a second printing layer 82 with recesses 84 ,

Exactly contains the security element 74 a first transparent embossing lacquer layer 20 , which in a feature area two subareas 22 . 24 having relief structures of different surface geometry. On the first embossing lacquer layer 20 is a first print layer 40 provided, which also contains a plurality of platelet-shaped metal pigments in addition to a translucent, for example, red colorant. The interaction between the metal pigments and the colorant on the one hand and the surface geometry of the relief structures on the other hand create an intense red-metallic color impression in the partial area 22 and a slightly reddish, strongly metallic-looking color impression in the partial area 24 , The red or reddish color impression is in the recesses 84 the second printing layer 82 visible, noticeable.

Next contains the security element 74 a second transparent embossing lacquer layer 80 , which in a feature area two subareas 86 . 88 having relief structures of different surface geometry. On the second embossing lacquer layer 80 is a second print layer 82 provided, which also contains a plurality of platelet-shaped metal pigments in addition to a translucent, for example blue colorant. Due to the interaction between the metal pigments and the colorant on the one hand and the surface geometry of the relief structures of the subregions 86 . 88 On the other hand, an intense blue-metallic color impression arises in the partial area 86 and a pale bluish, strongly metallic-looking color impression in the partial area 88 ,

The second print layer 82 of the security element 74 is with patterned recesses 84 Mistake. In the area of the recesses 84 is the intense red or slightly reddish color impression of the layers 20 . 40 visible, noticeable. The areas where the recesses 84 over the recesses 66 the first color layer 40 lie, form Review areas in which the security element 74 is completely transparent.

LIST OF REFERENCE NUMBERS

10

bill

12

security patrols

14

feature region

15

Background areas

16

template

18

character

20

Embossing lacquer layer

22.24

subregions

32, 34

structural elements

36

wells

38

flanks

40

printing ink

42

colorants

44

platelet-shaped metal pigments

50

observer

60

bill

62

pane

64

security element

66

recesses

70

bill

72

pane

74

security element

80

second embossing lacquer layer

82

second print layer

84

recesses

86.88

subregions

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1689586 B1 [0023]
• WO 2010/069823 A1 [0023]
• WO 2013/090983 A1 [0023]

Claims (15)

Security element for securing security papers, security documents and other data carriers, with a colored feature area of different colors, in which the feature area has at least two partial areas with relief structures of different surface geometry, the feature area is provided with a coloring ink comprising a colorant and a plurality of platelet-shaped effect pigments, and - The platelet-shaped effect pigments are differently aligned in the two sub-areas by the different surface geometry of the relief structures and / or spaced differently from the surface of the relief structure, and the ink thereby produces different color impressions in the two sub-areas. Security element after Claim 1 , characterized in that the relief structures are formed in the partial areas by structural elements of a first or second structural width and the ratio of the larger to the smaller structural width is greater than 1.5, preferably greater than 2.0, more preferably greater than 4.0. Security element after Claim 1 or 2 , characterized in that the relief structures in the subregions are formed by structural elements of a first or second structure depth and the ratio of the larger to the smaller structure depth is greater than 1.2, preferably greater than 1.5, particularly preferably greater than 2.0. Security element according to at least one of Claims 1 to 3 , characterized in that the relief structures in the first partial area have a smaller structural width and at the same time a greater structural depth than the relief structures in the second partial area. Security element according to at least one of Claims 1 to 4 , characterized in that the relief structure is formed in at least one subregion by a diffractive relief structure, in particular a hologram structure, a micromirror structure, a microlens structure or a microcavity structure. Security element according to at least one of Claims 1 to 5 , characterized in that in the first of the two partial regions the effect pigments are arranged at a first distance from the surface of the relief structure, and in the second of the two partial regions the effect pigments are arranged without spacing or at a second distance from the surface of the relief structure. Security element according to at least one of Claims 1 to 6 , characterized in that the different color impressions are determined at least by different amounts of colorant, which are arranged between the effect pigments and the relief structure. Security element according to at least one of Claims 1 to 7 in that the platelet-shaped effect pigments have a ratio of the largest to the smallest diameter (diameter-to-thickness ratio) which is more than 5: 1, preferably more than 10: 1, and more preferably more than 50: 1 or even more than 100 : 1; and / or the largest diameter of the platelet-shaped effect pigments is between 5 μm and 20 μm, preferably between 8 μm and 12 μm. Security element according to at least one of Claims 1 to 8th , characterized in that the platelet-shaped effect pigments have a largest diameter which is of the same order of magnitude as the width of the flanks of the structural elements having the larger structural width and which is at least twice the width of the flanks of the structural elements having the smaller structural width. Security element according to at least one of Claims 1 to 9 , characterized in that the platelet-shaped effect pigments have a largest diameter, which lies between the smaller and the larger of the structure widths of the structural elements of the two partial regions. Security element according to at least one of Claims 1 to 10 , characterized in that the platelet-shaped effect pigments are metal pigments or color pigments. Security element according to at least one of Claims 1 to 11 , characterized in that the relief structures are formed in a transparent layer, in particular a transparent embossing lacquer layer. Security element according to at least one of Claims 1 to 12 , characterized in that the feature area has at least one further subarea with different surface geometry and the platelet-shaped effect pigments in the at least one further subarea are differently oriented by the different surface geometry of the relief structures, and the printing ink thereby produces a different color impression from the two subareas. Data carrier with a security element according to at least one of Claims 1 to 13 , Method for producing a security element according to one of Claims 1 to 13 in which - a carrier is provided and provided with a preferably transparent layer, - the layer is provided with relief structures of different surface geometry in a feature area with at least two partial areas, - the feature area is provided with a flowable coloring printing ink comprising a colorant and a plurality having platelet-shaped effect pigments, wherein the platelet-shaped effect pigments are arranged differently aligned and / or differently spaced from the surface of the relief structure in the two subregions by the different surface geometry of the relief structures, and the ink thereby produces different color impressions in the two subregions.

Images