Method for manufacturing security features, security features for data carriers, data carriers and laminates

Abstract

A method for producing an anti-forgery feature (11) for a data carrier (1) is proposed, comprising the following steps: providing a model device with a model structure (23) of an image (16) of the anti-forgery feature (11); introducing the image (16) into a substrate (10) by molding of the model structure (23); arranging a light-diffractive or light-refractive structure (17) on the substrate (10).

Description

[0001] The present invention relates to a method for manufacturing anti-counterfeiting features for data carriers, anti-counterfeiting features for data carriers, data carriers with anti-counterfeiting features, and laminates for manufacturing anti-counterfeiting features.

[0002] Data carriers, such as valuable documents (like passports and certificates, ID cards, credit cards, bank cards, etc.), are increasingly used in the public domain, but also in the internal domain of enterprises.

[0003] It has long been known to use lenticular screens or lenticular gratings (German: Linsenrastern), such as lenticular lenses (German: Lentikularlinsen), to equip valuable documents or even banknotes. This structure allows for optically variable effects on the documents, such as inverted images, while simultaneously providing protection against copying.

[0004] A method for manufacturing three-dimensional embossed sheets to create surface-embossed cards and documents via lamination is known from document EP 1629994 B1. Here, various embossed structures, such as lens structures and micro-printing (letter) structures, are introduced into the highly polished surface of the embossed sheet using different processing techniques.

[0005] A method for manufacturing a portable data carrier with an embossed surface structure is known from document DE 1126368 A1. Embossing is performed on a pre-laminated semi-finished product using an embossing punch and a mating punch. The embossed surface structure can be, in particular, a lens structure.

[0006] Other anti-counterfeiting features, such as the MagicID feature, involve printing using offset printing methods and placing lenses on it.

[0007] A method for forming a security element in the form of a micro-optical moiré magnification layout on an identity card or security document is known from document EP 2162294 B1. The image pattern is here calculated and decomposed into multiple micro-pattern image portions, which are periodically arranged in a grid. Typically, the printed micro-pattern image portions are viewed through a grid of focusing elements in the form of a lens layout. Changing the viewing angle makes the image pattern appear to move to the observer. The process for manufacturing such a security element is very complex. Furthermore, the image quality of the anti-counterfeiting feature depends on the printing process.

[0008] The technical problem this invention aims to solve is to simplify the manufacture of visually inspectable anti-counterfeiting features that function using a lens structure, while simultaneously improving the image quality of the anti-counterfeiting features. Furthermore, the substrate in which the anti-counterfeiting features are formed should also be protected against tampering and counterfeiting.

[0009] This technical problem is solved by the method for manufacturing anti-counterfeiting features according to the independent claim, the anti-counterfeiting features for a data carrier, the data carrier, and the laminate. Embodiments and improved embodiments of the invention are given in the dependent claims.

[0010] The method for manufacturing anti-counterfeiting features for data carriers according to the present invention includes the following steps:

[0011] - Provides substrates that are transparent or partially transparent in the visible spectrum;

[0012] - The image is introduced into one side of the base through the molding of the model structure;

[0013] - And form a structure for light diffraction or light refraction on the opposite side of the substrate.

[0014] The basic idea of ​​this invention is that the anti-counterfeiting feature is fully molded or embossed, rather than partially printed as is common practice. The model structure of the anti-counterfeiting feature's image (or representation) is a negative or positive element in a laminate, reflected on the data carrier. It is formed into a substrate or layer, for example, made of plastics such as PET, PC, PVC, or PP. Pressure and heat can be used when introducing the image into the substrate.

[0015] Model structures can be incorporated into model devices using methods such as milling, laser cutting, etching, and 3D printing. Compared to conventional printing methods such as offset printing, this method offers higher resolution.

[0016] The advantage of the proposed method is that it enables more refined representation of anti-counterfeiting features at a higher resolution compared to flatbed exposure. These fine filamentary structures with smaller structural widths achieve greater detail in static anti-counterfeiting features and smoother transitions in moving or flipped images. More complex movements can now also be achieved.

[0017] Manufacturing is simplified by eliminating the need for component printing. Furthermore, the size of anti-counterfeiting features is limited by printing technology. The proposed manufacturing method also allows for larger anti-counterfeiting features, thus eliminating limitations on milling processes, such as in plate-shaped molded devices like laminates.

[0018] Another advantage of this invention is that the substrate can be transparent. The substrate can also be constructed as partially transparent or opaque with transparent or partially transparent windows. This allows the anti-counterfeiting features or images to be observed from both sides, i.e., the front and back. A light diffraction or refraction structure can be provided on one side of the substrate, and the image can be provided on the opposite side of the substrate.

[0019] Another advantage of the present invention is that it protects the substrate in which the anti-counterfeiting features are formed from tampering and counterfeiting.

[0020] It can also be specified that the model device is a laminate and the image is introduced during the lamination of the substrate. Therefore, the image can be introduced into the laminate as a lamination structure and then laminated to the substrate. Multiple model structures can be set for the image of the anti-counterfeiting feature on the laminate and other model devices, so that the anti-counterfeiting feature can be manufactured on a single page. This page is later decomposed into individual anti-counterfeiting features.

[0021] It can be specified that light diffraction or refraction structures are arranged on the substrate via a second laminator during lamination. This further simplifies production. In particular, light diffraction or refraction structures and images can be introduced simultaneously. This can further shorten production time.

[0022] Alternatively, it can be specified that a superimposed safety element is introduced into the substrate using a laser, by locally changing the color of the substrate material. For this purpose, it is preferable that the substrate has at least one laser-sensitive layer, and the superimposed safety element is formed within that layer.

[0023] It can be stipulated that the superimposed security element is introduced through a light diffraction or light refraction structure. Alternatively, it can be stipulated that the superimposed security element is introduced after the first anti-counterfeiting feature is manufactured.

[0024] It can also be specified that the model device is a punch that introduces the image after lamination of the substrate. Alternatively, one or more punches can be provided relative to the laminate for introducing the image into the substrate. The punches have the same model structure as the image of the anti-counterfeiting feature. The manufactured pages can be passed through one or more punches. Before punching, the plastic of the substrate is melted, which can be achieved through lamination or other process steps, or even without lamination. Generally, for example, a laminate, embossing punch, gravure printing plate, and / or ultrasonic process can be used to introduce the image into the substrate.

[0025] It can be specified that the model structure is incorporated into the model component through methods such as laser cutting, milling, waterjet cutting, or electroplating. In principle, all methods that can incorporate fine structural widths into the model component are applicable. For example, sandblasting can also be used. The model component can be, for example, a metal sheet.

[0026] It can be specified that the elements of the model structure are calculated such that the image is a moving image when the anti-counterfeiting feature is flipped. This can occur during data preparation before the model structure is inserted into the model device, such as before a milling process in a metal plate. The moving image can be, for example, a flipped image, where the image flips or switches between two or more images as the image moves relative to the observer's eye. The moving image can also be, for example, movement across multiple images. These images can be represented in an endless motion. More images can be generated through a more refined structure of the image, since the distance between two optical structures, such as lenses, typically determines the number of images.

[0027] The anti-counterfeiting feature for a data carrier according to the invention comprises a transparent or partially transparent substrate in the visible spectrum, in which an image is formed (together with a light diffraction or light refraction structure) to produce an optically variable image, and having a light diffraction or light refraction structure constructed on the substrate, the light diffraction or light refraction structure at least partially covering and interacting with the image to produce a moving image when the anti-counterfeiting feature is flipped.

[0028] It can be specified that the substrate is transparent. Since the image of the anti-counterfeiting feature is produced by (molding) rather than printing according to the present invention, the substrate can now be chosen to be transparent. The substrate can also be constructed to be partially transparent or opaque with transparent or partially transparent windows. Thus, the anti-counterfeiting feature or image can be viewed from both sides, i.e., the front and the back. A light diffraction or light refraction structure can be provided on one side of the substrate, and the image can be provided on the opposite side of the substrate.

[0029] It can also be specified that the image is a moving image when the anti-counterfeiting feature is flipped. A moving image can be, for example, a flipped image, where the image flips or switches between two or more images as it moves relative to the observer's eye. A moving image can also be a movement across multiple images. These images can be represented in an endless motion. More images can be generated through a finer structure of the image, since the distance between two optical structures (such as lenses) typically determines the number of images.

[0030] It can be specified that the structure for light diffraction or refraction includes a surface relief in the form of a lens grating. Excellent optical performance and smooth image movement can be achieved through lens gratings with multiple or many individual lenses, such as spherical lenses, rod lenses, and / or cylindrical lenses.

[0031] The data carrier according to the invention, such as a valuable document or chip card, includes a carrier on or within which the aforementioned anti-counterfeiting features are arranged. The data carrier can also be packaging, such as secure packaging with a security seal, for example, packaging for pharmaceuticals. The data carrier can also be such a security seal. The anti-counterfeiting features can be entirely arranged within an opening in the data carrier. For example, an opening with the anti-counterfeiting features located therein can be covered by one or more layers of film. Other aspects are subject to the same advantages and variations described above.

[0032] It can be stipulated that valuable documents include banknotes, passports, and certificates. Finally, anti-counterfeiting features can be placed on each data carrier, such as valuable documents or chip cards.

[0033] The laminate according to the invention for manufacturing anti-counterfeiting features for data carriers includes a model structure representing the anti-counterfeiting feature. The laminate can be used in a method for manufacturing the aforementioned anti-counterfeiting feature. Other aspects are similarly adapted to the advantages and variations described above.

[0034] It can be specified that the model structure is introduced into the model device through laser cutting, milling, waterjet cutting, 3D printing, or electroplating. In principle, all methods that can introduce fine structural widths into the laminate are applicable. The model device can be, for example, a laminate. The invention is described below with reference to the accompanying drawings.

[0035] In the attached image:

[0036] Figure 1 A top view of a data carrier with anti-counterfeiting features is shown;

[0037] Figure 2 As shown Figure 1 The data carrier shown is a cross-sectional view along line II;

[0038] Figure 3 Examples of images used for movement are shown;

[0039] Figure 4 A cross-section through an alternative implementation of the data carrier is shown;

[0040] Figure 5 An embodiment with anti-counterfeiting features having superimposed security elements is shown;

[0041] Figure 6 An example illustrating a movement with superimposed safety elements;

[0042] Figure 7 A schematic diagram illustrating the principle of manufacturing anti-counterfeiting features is shown.

[0043] Figure 8 Multiple-use production demonstrating anti-counterfeiting features;

[0044] Figure 9 shows a schematic diagram of the laminate used to manufacture anti-counterfeiting features;

[0045] Figure 10 A method for creating anti-counterfeiting features for data carriers is shown.

[0046] Figure 1 This diagram shows a top / front view of data carrier 1. Data carrier 1 can be a valuable document in the form of banknotes, passports, and certificates. Similarly, data carrier 1 can be a chip card. Figure 1 In the example shown, data carrier 1 is the proof document.

[0047] The data carrier 1 includes an anti-counterfeiting feature 11 that produces a visually inspectable optically variable image, such as a symbol. The optically variable image is a moving or flipped image. The anti-counterfeiting feature 11 is at least partially disposed in region 1 of the data carrier 1, in which the data carrier is transparent or partially transparent in the visible spectrum.

[0048] Data carrier 1 contains additional personal data 12, such as the holder's first and last name. The identity card may also contain other data 13, such as date of birth, nationality, issuing authority, and date of issuance.

[0049] Now refer to Figure 2 Detailed explanation of the basic structure of anti-counterfeiting feature 11 Figure 2 Show along Figure 1 Line II passes through the cross section of the first embodiment of data carrier 1.

[0050] For anti-counterfeiting feature 11, the data carrier 1 is formed on a substrate 10 that is transparent or partially transparent in the visible spectrum. In accordance with... Figure 2 In this embodiment, the substrate 10 comprises a card body 14 that is transparent or partially transparent in the visible spectrum and an anti-counterfeiting feature 11, the anti-counterfeiting feature 11 being at least partially disposed in the opening 1a of the data carrier 1 or the card body 14. The card body 14 may also be substantially opaque, in which case a transparent or partially transparent segment is provided in the region 1 of the anti-counterfeiting feature 11.

[0051] The anti-counterfeiting feature 11 includes a carrier element 15 that is transparent or partially transparent in the visible spectrum, and an image 16 is formed in the carrier element 15. The image 16 is introduced on one side of the carrier element 15 in the form of a surface relief, i.e., the bottom side or the back side.

[0052] The light diffraction or light refraction structure 17 is arranged on the opposite side of the carrier element 15, in this case on the top or front side, and the light diffraction or light refraction structure 17 at least partially covers the anti-counterfeiting feature 11 or image 16.

[0053] The carrier element 15 may contain or be composed of a continuously luminescent fluorescent or phosphorescent material. The same applies to other layers or extruded films present if necessary, which are part of or work in conjunction with the anti-counterfeiting feature 11.

[0054] The light diffraction or refraction structure 17 is suitably a surface relief in the form of a lens grating; this implementation will always serve as the basis thereafter. A lens grating 17 with a single lens, such as a spherical lens, rod lens, and / or cylindrical lens, is suitably used. The lens grating 17 is arranged on the top side of the carrier element 15, opposite to the image 16, and can be directly connected to the carrier element 15. The carrier element 15 is thus located between the lens grating 17 and the image 16.

[0055] Before the image 16 is introduced into the carrier element 15, the image is calculated to match the lens grating 17, such that a moving image is produced when viewed through the lens grating 17 during the flipping of the anti-counterfeiting feature 11 or the data carrier 1. The moving image can be, for example, a flipped image, where the image flips or switches between two or more images as the image 16 moves relative to the observer's line of sight. The moving image can also be, for example, a movement across multiple images. These images can be represented in an endless motion.

[0056] Example of moving image 16 in Figure 3 As shown in the example, when security element 11 flips, the observer sees the horse's forelegs move. To achieve the impression of movement, the image is divided into multiple individual elements, which are seen through the lens grating 17 according to the viewing angle. For example, image 16 may include anti-counterfeiting features based on the Moore effect, the principle of which is explained, for example, in document EP2162294B1.

[0057] Multiple images can be generated through the fine structure of image 16, because the distance between two optical structures, such as lenses, typically determines the number of images. This distance, also known as the lattice pitch, is used as a parameter in calculating the display image 16. Each lattice pitch can set one image. Before the introduction of image 16, the number of images was calculated within the scope of data preparation for image 16.

[0058] The image 16 may contain graphic images, such as rotating gears, text elements, or visual images. The image may also contain personal information, such as name, signature, and date of birth. Furthermore, image 16 may include data related to data carrier 1, such as expiration date, card number, and issuing institution information.

[0059] The data carrier 1 may include additional layers, such as one or more protective layers or a functional layer with other security elements. Here, the transparency of the data carrier 1 can be maintained in the area of ​​the anti-counterfeiting feature 11. This allows the anti-counterfeiting feature 11 to be visible from both the front and back of the data carrier 1.

[0060] The image 16, or any individual element thereof, interacts with the lens grating 17 in a calculated manner, and the image 16 is visible to an observer depending on the viewing angle when the data carrier 1 is viewed from the front or back. If the data carrier 1 with the image 16 is rotated or flipped, the movement of the image 16 is visible, which is produced by the calculated interaction between the image 16 and the light diffraction or refraction structure 17.

[0061] Figure 4 Show along Figure 1Line II passes through the cross-section of an alternative embodiment of the data carrier 1. In the region of the anti-counterfeiting feature 11, the data carrier 1 further forms a substrate 10 that is transparent or partially transparent in the visible spectrum. The data carrier 1 has a multi-layered structure that is continuously transparent or partially transparent in the visible spectrum in the region where the anti-counterfeiting feature 11 is arranged. The data carrier 1 is based on a central carrier layer 18, in which local regions 19 that are transparent or partially transparent in the visible spectrum are formed in the region of the anti-counterfeiting feature 11. The transparent local regions 19 may be transparent inserts 19 arranged at the opening 1a. The remaining portion of the central carrier layer 18 may be implemented as opaque or as transparent.

[0062] A transparent or partially transparent surface layer 15, within the visible spectrum, is disposed on one side of the carrier layer 18, which forms the carrier element for the lens grating 17. A second surface layer 25, also transparent or partially transparent within the visible spectrum, is disposed on the opposite side of the carrier layer 18. The image 16 is formed on its outer surface in the form of a surface relief. Additional intermediate layers 18a and 18b, transparent or partially transparent within the visible spectrum, may be disposed between the central carrier layer 18 and the surface layers 10 and 25.

[0063] like Figure 4 As shown, depending on the viewing angle, an observer sees different aspects of image 16 when viewing it through lens grating 17. For example, if the image is in the form of a running horse, the horse is in two different states of motion when switching between different viewing angles.

[0064] Figure 5 A preferred embodiment of the anti-counterfeiting feature 11 is shown. In addition to the lens grating 17 and the moving image 16, a superimposed security element 26 is introduced into the substrate 10 via laser. The superimposed security element 26 is introduced by introducing laser energy to locally change the color of the material of the substrate 10. This localized color change is suitably achieved by creating black or dark surface elements 27 in the layers of the substrate 10, such as... Figure 5 As shown. The laser energy input L preferably passes through the lens grating 17, as... Figure 5 As shown. The substrate 10 is suitably composed of at least two layers 10, 18, 18a, 18b, 25, wherein at least one layer is doped as shown by the small circle D to make it sensitive to laser. The other layers of the substrate 10 are preferably laser-permeable. In the laser-sensitive layer 18a due to doping, local color changes are constructed into superimposed safety elements 26 by a laser energy input L, for example by a 1064 nm NdYAG laser.

[0065] The superimposed security element 26 can be a symbol, an amorphous shape, an alphanumeric character sequence, or an image. It can be configured to be different for each data carrier or standardized. Figure 6The image 16 shown is an example of an anti-counterfeiting feature 11 with an overlaid security element 26, in which alphanumeric information 26 is inserted as an overlaid security element.

[0066] When viewed through the lens grating 17, the superimposed safety element 26 is also optically variable. Depending on the viewing angle through (or through) the lens grating 17, the superimposed safety element 26 may exhibit different implementations or may be identifiable or unidentifiable.

[0067] In addition, such as Figure 5 As shown, when viewed from the side opposite to the lens grating 17, that is, from the side carrying the image 16, the superimposed safety element 26 is always identifiable regardless of the viewing angle.

[0068] In one variant, the laser energy input for forming the superimposed security element 26 can also be made from the side of the substrate 10 opposite to the lens grating 17. When viewed through the lens grating 17, the superimposed anti-counterfeiting feature 26 shows no or only a subtle optical change effect.

[0069] Figure 7 A schematic diagram is shown illustrating the fabrication of anti-counterfeiting features via lamination device 20. Lamination device 20 is shown only in principle; in particular, devices for generating pressure and / or increasing temperature are not shown.

[0070] Two laminates 21 and 22 are shown, with a substrate 10 laminated between them. The substrate 10 is sheet-like or film-like. The substrate 10 is placed between the two laminates 21 and 22. The two laminates 21 and 22 are then moved onto the substrate 10 to apply pressure thereon. Here, the temperature is typically increased to melt or at least heat the substrate 10 or the plastic material of the laminate structure.

[0071] Depending on the selected forming technique, multiple optical diffraction or refraction structures are introduced into the laminate 21 as a mapping, either as a negative mold, a positive mold, or a mixture of both, in the form of an opening 21a, which, for example, forms an inverted lens grating. During lamination, individual optical diffraction or refraction structures are formed in the substrate 10 through the forming of the opening 21a, and a lens grating 17 is formed there, for example. The optical diffraction or refraction structure 17 is thus fixedly connected to the substrate 10.

[0072] The model structure 23 of image 16 is introduced as a mapping into the corresponding laminate 22. The shape and relative position of the model structure 23 are determined by calculation. The model structure 23 here corresponds to the two-dimensional printed pattern as an relief. It has been proven that the model structure 23 formed in a relief shape can achieve the same effect as the corresponding printed pattern.

[0073] The anti-counterfeiting feature model structure 23 is introduced into the laminate 22, for example, by laser cutting, milling, water jet cutting or electroplating.

[0074] Before the model structure 23 is introduced into the laminate 22 and before the light diffraction or refraction structure 17 is generated, they are calculated in relation to each other. Therefore, it is possible to realize an image 16 that moves with the viewing angle.

[0075] During lamination, the lens grating 17 is simultaneously formed into the substrate 10 on one side and the image 16 is formed on the other side. This creates an anti-counterfeiting feature 11 in the substrate 10. The lens grating 17 and the image 16 are fused with the substrate 10 and become part of the substrate 10, thus both are fixedly connected to the substrate 10.

[0076] Figure 8 A lamination apparatus for the multiple-use production of safety element 11 is shown. Two laminates 21 and 22 are shown, with substrate 10 located therebetween as a sheet or film.

[0077] Multiple lens gratings 17 are introduced into the laminate 21 as negative molds, or, if necessary, as positive molds depending on the imaging technique, or a combination of both. Corresponding model structures 23 are introduced as mappings into the opposite laminate 22.

[0078] During the lamination process, a plurality of anti-counterfeiting features 11 are formed in the substrate 10. The substrate 10 is moved between two laminates 21 and 22. The two laminates 21 and 22 are then moved onto the substrate 10 so that pressure is applied to it. Here, the temperature is typically increased to melt or at least heat the plastic material of the substrate 10.

[0079] Figure 9 shows a schematic diagram of the laminate used to manufacture anti-counterfeiting features.

[0080] Figure 9a A schematic diagram of a laminate 22 with multiple model structures 23 including figure 16 is shown. The model structures 23 are arranged on the laminate 22 such that a free area is reserved around each model structure 23 for subsequent anti-counterfeiting features or subsequent data carrier sizes.

[0081] Figure 9b A second laminate 21 with light diffraction or refraction structures 17 is shown, each arranged in an opening 21a. The openings 21a, and therefore the light diffraction or refraction structures 17, are arranged on the laminate 22 in the same positions as the model structure 23. This ensures that the light diffraction or refraction structures 17 are aligned with the image 16 on the anti-counterfeiting feature to be manufactured. Here, the spatial extension of the light diffraction or refraction structures is not necessarily the same as that of the image 16.

[0082] Figure 10A method for manufacturing an anti-counterfeiting feature 11 for a data carrier 1 is shown. In a first step 10, a model device, such as a laminate 22, is provided having a model structure 23 of the image 16 of the anti-counterfeiting feature 11. As shown above, multiple model structures 23 can be provided on the model device. The model structure 23 can be introduced into the model device, for example, by laser cutting, milling, waterjet cutting, or electroplating methods.

[0083] In the second step 11, the image 16 is introduced into the substrate 10 by forming the model structure 23. This is preferably done during the lamination of the anti-counterfeiting feature 11 or the substrate 10. Here, the model structure 23 is pressed or imprinted into the plastic material of the substrate 10 by pressure and heat. The resulting image 16 includes or is composed of recesses in the surface of the substrate 10.

[0084] In the third step 120, a light diffraction or light refraction structure 17 is arranged on the substrate 10. For example, the light diffraction or light refraction structure 17 can be fused to the substrate 10 or connected by an adhesive.

[0085] The order of steps is not necessarily limited to the order stated above. For example, the arrangement of the light diffraction or light refraction structure 17 can also be performed as the first step or the second step. In particular, the arrangement of the light diffraction or light refraction structure 17 on the substrate 10 and the introduction of the image 16 into the substrate 10 can be performed during the co-lamination process when using the second laminating plate 21.

[0086] The aforementioned anti-counterfeiting feature 11 can be generated in this way. Here, the aforementioned laminates 21 and 22 can be used, or only laminate 22 can be used.

[0087] While retaining the basic idea, the above invention allows for numerous other implementations and modifications. In particular, the elements can be arranged in combinations different from those described. The accompanying drawings and related descriptions are not to be construed as limiting the scope of the invention to the embodiments described herein.

Claims

1. A method for manufacturing anti-counterfeiting features for a data carrier (1), comprising the following steps: - Provide a substrate (10) made of plastic material consisting of at least two layers that is transparent or partially transparent in the visible spectrum; - Provide a model device with a model structure (23) that forms a mapping of an image (16) that, together with a structure for light diffraction or light refraction, produces an optically variable image; -The image (16) is introduced into the outside of the substrate (10) by pressing the model structure (23) into the substrate (10) under pressure and heat; - and form a light diffraction or light refraction structure on the opposite outer side of the substrate (10); and - A superimposed safety element (26) is introduced into the substrate (10) by means of a localized color change in the substrate material, wherein the superimposed safety element (26) is also optically variable when viewed through a lens grating. The substrate (10) includes a first surface layer having a structure for light diffraction or light refraction, a second surface layer having the image (16) formed thereon, and at least one laser-sensitive layer (18a) located between the two, and the superimposed security element (26) is formed in the laser-sensitive layer.

2. The method according to claim 1, characterized in that, The model device is a laminate and the image (16) is introduced during the lamination of the substrate (10).

3. The method according to claim 2, characterized in that, During lamination, the optical diffraction or refraction structure is arranged on the substrate (10) by means of a second laminator, and the steps of introducing the image (16) into one side of the substrate (10) and forming the optical diffraction or refraction structure on the opposite side of the substrate (10) by pressing the model structure (23) into the substrate (10) under pressure and heat are carried out in the common lamination process.

4. The method according to claim 1, characterized in that, The superimposed safety element (26) is introduced through the optical diffraction or optical refraction structure.

5. The method according to claim 1, characterized in that, The superimposed security element (26) is introduced after the manufacture of the first anti-counterfeiting feature.

6. The method according to claim 1, characterized in that, The model structure (23) is introduced into the model device by means of laser cutting, milling, water jet cutting or electroplating.

7. The method according to claim 1, characterized in that, The elements of the model structure (23) are calculated such that the image (16) is a moving image (16) when the anti-counterfeiting feature is flipped.

8. The method according to claim 1, characterized in that, The model device is a punch and an image (16) is introduced after lamination of the substrate (10).

9. An anti-counterfeiting feature for a data carrier (1), manufactured by the method according to any one of claims 1 to 8, having a substrate (10) made of a plastic material that is transparent or partially transparent in the visible spectrum, an image (16) being formed in the substrate, the image producing an optically variable image together with a structure for light diffraction or light refraction, and having a structure for light diffraction or light refraction formed on the substrate (10), the structure for light diffraction or light refraction at least partially covering the image and interacting with the image to produce a moving image when the anti-counterfeiting feature is flipped.

10. A data carrier (1) having a carrier having anti-counterfeiting features arranged on or within the carrier according to claim 9.

11. The data carrier according to claim 10, further comprising a superimposed security element (26) according to any one of claims 1, 4 and 5.

12. The data carrier according to claim 10, characterized in that, The data carrier is a valuable document or a chip card.

13. A laminate (21) for manufacturing an anti-counterfeiting feature for a data carrier (1) according to claim 9, the laminate having a model structure (23) that is a mapping of an image (16) which, together with a structure for light diffraction or light refraction, produces an optically variable image.

14. The laminate (21) according to claim 13, characterized in that, Model structure (23) is introduced into model devices by laser cutting, milling, water jet cutting or electroplating.

Images