Anti-counterfeiting element and anti-counterfeiting product

Abstract

The invention discloses an anti-fake element and an anti-fake product, the anti-fake element comprises a first transparent base material, a second transparent base material and at least one covering structure, the first transparent base material is provided with a first surface, the second transparent base material is provided with a second surface, and the first surface and the second surface are oppositely arranged; the covering structure comprises a first metal reflecting layer, a second metal reflecting layer and a first magnetic area, the first metal reflecting layer is arranged on the first surface, the second metal reflecting layer is arranged on the second surface, and the first magnetic area is located between the first metal reflecting layer and the second metal reflecting layer; the first metal reflection layer and the second metal reflection layer cover the first magnetic region; the first metal reflection layer and the second metal reflection layer have the same reflection light density. The anti-fake element has no chromatic aberration when being observed from the first transparent base material side, the anti-fake element has no chromatic aberration when being observed from the second transparent base material side, and the color of the first transparent base material side of the anti-fake element is consistent with that of the second transparent base material side of the anti-fake element.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-counterfeiting, and in particular to an anti-counterfeiting element and an anti-counterfeiting product. Background Art

[0002] Valuable documents such as banknotes, stocks, stamps, checks, air tickets, ticket labels, etc. are usually equipped with anti-counterfeiting elements, which can ensure the authenticity of the information carrier and can also be used to prevent illegal copying. Magnetic materials are widely used in the field of anti-counterfeiting. Anti-counterfeiting elements with magnetic materials are fully or partially embedded in paper, and the coding sequence of magnetic information can be detected by magnetic sensors to determine the authenticity of the ticket, and can also be used to sort the ticket.

[0003] Magnetic information is generally composed of dark or black materials. After the anti-counterfeiting element with magnetic information is embedded in the paper, black lines will appear at the embedded part. In order to improve the anti-counterfeiting security of the anti-counterfeiting element, the existing method generally uses printing or coating of metallic ink to cover the anti-counterfeiting information layer. However, due to the characteristics of metallic ink, when light shines on the metallic ink, it is diffusely reflected, while the non-covered area of ​​the security element is mirror reflected. Due to the different reflectivities, the security element has visual color difference, which affects the aesthetics of the security element after it is embedded in the paper. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is that in the prior art, the anti-counterfeiting information layer is covered by printing or coating metallic ink. However, due to the characteristics of metallic ink, when light shines on the metallic ink, it is diffusely reflected, while the non-covered area of ​​the security element is mirror reflected. Due to the different reflectivities, the security element has visual color difference, which affects the aesthetics of the security element after being embedded in the paper.

[0005] To this end, the present invention provides an anti-counterfeiting element, comprising:

[0006] A first transparent substrate having a first surface;

[0007] A second transparent substrate, wherein the second transparent substrate has a second surface, and the first surface and the second surface are arranged opposite to each other;

[0008] at least one covering structure, the covering structure comprising a first metal reflective layer, a second metal reflective layer and a first magnetic region, the first metal reflective layer being arranged on the first surface, the second metal reflective layer being arranged on the second surface, the first magnetic region being located between the first metal reflective layer and the second metal reflective layer, and the first metal reflective layer and the second metal reflective layer both covering the first magnetic region;

[0009] The first metal reflective layer and the second metal reflective layer have the same reflected light density.

[0010] Optionally, in the above anti-counterfeiting element, the covering structure further includes a second magnetic region, the second magnetic region is arranged between the first metal reflective layer and the second metal reflective layer, and the first metal reflective layer and the second metal reflective layer both cover the second magnetic region.

[0011] Optionally, in the anti-counterfeiting element, the first magnetic region and the second magnetic region are arranged at intervals or partially overlap.

[0012] Optionally, in the anti-counterfeiting element, the pulse orientations of the first magnetic region and the second magnetic region are opposite or the same.

[0013] Optionally, in the above anti-counterfeiting element, the first metal reflective layer is a set first pattern, and the second metal reflective layer is a set second pattern.

[0014] Optionally, in the anti-counterfeiting element, the first metal reflective layer and the second metal reflective layer are both formed into a predetermined pattern by a vacuum local evaporation process.

[0015] Optionally, in the above anti-counterfeiting element, the orthographic projection of the first metal reflective layer on the second surface at least covers a portion of the second metal reflective layer.

[0016] Optionally, the anti-counterfeiting element further includes an optical diffraction layer, wherein the optical diffraction layer is located between the second surface and the second metal reflective layer, and the optical diffraction layer covers the second metal reflective layer.

[0017] The present invention also provides an anti-counterfeiting product, comprising the anti-counterfeiting element.

[0018] The technical solution provided by the present invention has the following advantages:

[0019] 1. The anti-counterfeiting element provided by the present invention includes a first transparent substrate, a second transparent substrate and at least one covering structure, the first transparent substrate has a first surface, the second transparent substrate has a second surface, the first surface and the second surface are arranged opposite to each other, the covering structure includes a first metal reflective layer, a second metal reflective layer and a first magnetic region, the first metal reflective layer is arranged on the first surface, the second metal reflective layer is arranged on the second surface, the first magnetic region is located between the first metal reflective layer and the second metal reflective layer, and the first metal reflective layer and the second metal reflective layer both cover the first magnetic region. Since the first metal reflective layer covers the first magnetic region, the light can only be irradiated onto the first metal reflective layer through the first transparent substrate, and when the light is irradiated onto the first metal reflective layer through the first transparent substrate, the first metal reflective layer reflects the light, and the light reflectivity of the first metal reflective layer is the same, thereby avoiding the visual color difference caused when observing from the first transparent substrate side; since the second metal reflective layer covers the first magnetic region, the light can only be irradiated onto the second metal reflective layer through the second transparent substrate, and when the light is irradiated onto the second metal reflective layer through the second transparent substrate, the second metal reflective layer reflects the light, and the light reflectivity of the second metal reflective layer is the same, thereby avoiding the visual color difference caused when observing from the second transparent substrate side; the anti-counterfeiting element of the present application has no color difference when observed from the first transparent substrate side and the second transparent substrate side, and since the reflected light density of the first metal reflective layer and the second metal reflective layer is the same, the color observed from the first transparent substrate side and the second transparent substrate side of the anti-counterfeiting element is consistent, thereby improving the aesthetics of the anti-counterfeiting element after being embedded in paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the anti-counterfeiting element provided in Example 1 of the present invention;

[0022] Figure 2 A schematic diagram of an anti-counterfeiting element provided in Example 2 of the present invention;

[0023] Figure 3 A schematic diagram of an anti-counterfeiting element provided in Example 3 of the present invention;

[0024] Figure 4 Schematic diagram of magnetically encoded waveform information of the anti-counterfeiting element provided in Example 1 of the present invention.

[0025] Description of reference numerals:

[0026] 1. A first transparent substrate;

[0027] 2. A second transparent substrate;

[0028] 31. First metal reflective layer; 32. Second metal reflective layer; 33. First magnetic region; 34. Second magnetic region; 35. Optical diffraction layer. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Example 1

[0034] The anti-counterfeiting element provided in this embodiment is as follows: Figure 1As shown, it includes a first transparent substrate 1, a second transparent substrate 2 and at least one covering structure, the first transparent substrate 1 has a first surface, the second transparent substrate 2 has a second surface, the first surface and the second surface are arranged opposite to each other, the covering structure includes a first metal reflection layer 31, a second metal reflection layer 32 and a first magnetic region 33, the first metal reflection layer 31 is arranged on the first surface, the second metal reflection layer 32 is arranged on the second surface, the first magnetic region 33 is located between the first metal reflection layer 31 and the second metal reflection layer 32, and the first metal reflection layer 31 and the second metal reflection both cover the first magnetic region 33.

[0035] In the anti-counterfeiting element provided in this embodiment, since the first metal reflective layer 31 covers the first magnetic region 33, light can only irradiate the first metal reflective layer 31 through the first transparent substrate 1, and when the light irradiates the first metal reflective layer 31 through the first transparent substrate 1, the first metal reflective layer 31 reflects the light, and the light reflectivity of the first metal reflective layer 31 is the same, thereby avoiding visual color difference when observing from the side of the first transparent substrate 1; since the second metal reflective layer 32 covers the first magnetic region 33, light can only irradiate the first metal reflective layer through the second transparent substrate 2, and when the light irradiates the first metal reflective layer 31 through the first transparent substrate 1, the first metal reflective layer 31 reflects the light, and the light reflectivity of the first metal reflective layer 31 is the same, thereby avoiding visual color difference when observing from the side of the first transparent substrate 1; When the light is irradiated onto the second metal reflective layer 32 through the second transparent substrate 2, the second metal reflective layer 32 reflects the light, and the light reflectivity of the second metal reflective layer 32 is the same, thereby avoiding the visual color difference caused when observing from the second transparent substrate 2 side; the anti-counterfeiting element of the present application has no color difference when observed from the first transparent substrate 1 side and the second transparent substrate 2 side, and since the reflected light density of the first metal reflective layer 31 and the second metal reflective layer 32 is the same, the color observed from the anti-counterfeiting element through the first transparent substrate 1 side and the second transparent substrate 2 side is consistent, thereby improving the aesthetics of the anti-counterfeiting element after being embedded in paper.

[0036] The anti-counterfeiting element provided in this embodiment is as follows: Figure 1As shown, the material of the first transparent substrate 1 can be PET, the material of the first transparent substrate 1 can also be OPP, the material of the first transparent substrate 1 can also be PMMA, the material of the first transparent substrate 1 can also be PE or other transparent plastic polymer substrates. In this embodiment, the material of the first transparent substrate 1 is PVC material, and a transparent film layer is formed by the PVC material, and the film layer is the first transparent substrate 1; the second transparent substrate 2 and the first transparent substrate 1 are the same in size, shape, dimension and material. The first transparent substrate 1 is located directly above the second transparent substrate 2, the lower surface of the first transparent substrate 1 is the first surface, and the upper surface of the second transparent substrate 2 is the second surface, that is, the first surface and the second surface are arranged oppositely. The first metal reflective layer 31 is formed on the first surface, and the area of ​​the first surface is greater than or equal to the area of ​​the first metal reflective layer 31. The second metal reflective layer 32 is formed on the second surface, and the area of ​​the second surface is greater than or equal to the area of ​​the second metal reflective layer 32. The first magnetic region 33 is formed by a plurality of magnetic particles regularly distributed on the lower surface of the first metal reflective layer 31. The plurality of magnetic particles can be printed and coated on the lower surface of the first metal reflective layer 31. As an alternative embodiment, the first magnetic region 33 can also be formed on the upper surface of the second metal reflective layer 32. The magnetic particles can be a composite of a magnetic material and a magnetic conductive material, and the magnetic particles can also be a magnetic conductive material. In this embodiment, the magnetic particles are magnetic materials. The first metal reflective layer 31 and the second metal reflective layer 32 are made of the same material, that is, the first metal reflective layer 31 and the second metal reflective layer 32 have the same reflected light density, so that after the anti-counterfeiting element is embedded in the paper, the color observed from the front and back of the paper is consistent, thereby improving the aesthetics of the anti-counterfeiting element after being embedded in the paper.

[0037] The anti-counterfeiting element provided in this embodiment is as follows: Figure 1 As shown, the covering structure also includes a second magnetic region 34. The second magnetic region 34 is formed by a plurality of magnetic particles regularly distributed on the lower surface of the first metal reflective layer 31. The plurality of magnetic particles can be printed and coated on the upper surface of the second metal reflective layer 32. As an alternative embodiment, the second magnetic region 34 can also be formed on the lower surface of the first metal reflective layer 31. The magnetic particles can be a composite of a magnetic material and a magnetic conductive material. The magnetic particles can also be a magnetic conductive material. In this embodiment, the magnetic particles are magnetic materials.

[0038] The anti-counterfeiting element provided in this embodiment is as follows: Figure 1 and Figure 4 As shown, the first magnetic region 33 and the second magnetic region 34 are arranged at intervals, and the identification device is used to detect the anti-counterfeiting element. The identification device can be a money counting machine or other financial device. When the identification device detects the anti-counterfeiting element, Figure 4 As shown, the pulse orientation of the first magnetic region 33 is m a , the pulse orientation of the second magnetic region 34 is mb , the first magnetic region 33 and the second magnetic region 34 have opposite pulse orientations, and the waveform maximum pulse amplitudes of the magnetic encoding signals detected by the first magnetic region 33 and the second magnetic region 34 are the same, both |Y|. The waveform of the magnetic encoding signal detected by the identification device is used as anti-counterfeiting information to distinguish the authenticity of the anti-counterfeiting product having the anti-counterfeiting element.

[0039] The anti-counterfeiting element provided in this embodiment is as follows: Figure 1 As shown, two covering structures are spaced apart and distributed between the first metal reflective layer 31 and the second metal reflective layer 32. This embodiment does not limit the number of covering structures, and those skilled in the art can adjust the number of covering structures as needed.

[0040] The anti-counterfeiting element provided in this embodiment can design the patterns of the first metal reflective layer 31 and the second metal reflective layer 32 according to trademarks, anti-counterfeiting marks, personalized patterns, characters or other commonly used marks. The first metal reflective layer 31 is a set first pattern, and the second metal reflective layer 32 is a set second pattern. The first pattern and the second pattern can be exactly the same or different. In actual applications, that is, when the anti-counterfeiting element is embedded in a banknote, the first pattern and the second pattern are both the face value numbers of the banknote.

[0041] In the anti-counterfeiting element provided in this embodiment, the material of the first metal reflective layer 31 can be aluminum, silver, copper, tin, chromium or other alloys. Aluminum is used in this embodiment. The second metal reflective layer is made of the same material as the first metal reflective layer 31. The first metal reflective layer 31 is formed on the first surface by vacuum local evaporation. As an alternative implementation method, the first metal reflective layer 31 is formed into a whole metal layer by vacuum evaporation, and then a protective glue is printed on the whole metal layer according to a set pattern, and then a chemical method is used to remove the metal of the unprotected part to obtain the set pattern. The second metal reflective layer 32 can be formed on the second surface by vacuum local evaporation, and can also be formed on the second surface by vacuum evaporation combined with a chemical method.

[0042] In the anti-counterfeiting element provided in this embodiment, the first metal reflective layer 31 is located directly above the second metal reflective layer 32, and there is an overlapping portion between the first metal reflective layer 31 and the second metal reflective layer 32. The first magnetic region 33 and the second magnetic region 34 are located in the overlapping portion. When the pattern of the first metal reflective layer 31 and the pattern of the second metal reflective layer 32 are the same, the first metal reflective layer 31 and the second metal reflective layer 32 completely overlap.

[0043] The anti-counterfeiting element provided in this embodiment is as follows: first, an aluminum filament is formed on the lower surface of a first transparent substrate 1 by a vacuum local evaporation process, and another aluminum filament is formed on the upper surface of a second transparent substrate 2 by a vacuum local evaporation process. The magnetic particles of the first magnetic region 33 are printed on the lower surface of the first metal reflective layer 31 by coating with a composite glue, and the magnetic particles of the second magnetic region 34 are printed on the upper surface of the second metal reflective layer 32 by coating with a composite glue. Then, the first transparent substrate 1 and the second transparent substrate 2 are bonded together by the composite glue.

[0044] Example 2

[0045] This embodiment provides an anti-counterfeiting element, such as Figure 2 As shown, compared with Example 1, the difference exists in that: in one of the covering structures, the length of the second metal reflective layer 32 is greater than the length of the first metal reflective layer 31, the second magnetic region 34 and the first magnetic region 33 are stacked in sequence, the first magnetic region 33 is located above the second magnetic region 34, the first magnetic region 33 and the second magnetic region 34 have an overlapping part, and when the identification device detects the anti-counterfeiting element, the first magnetic region 33 and the second magnetic region 34 have the same pulse orientation.

[0046] Example 3

[0047] This embodiment provides an anti-counterfeiting element, such as Figure 3 As shown, compared with the embodiment 1, the difference is that the length of the second metal reflective layer 32 in one of the covering structures is greater than the length of the first metal reflective layer 31 .

[0048] The anti-counterfeiting element provided in this embodiment further includes an optical diffraction layer 35, which is located between the second surface and the second metal reflective layer 32, and covers the second metal reflective layer 32. When light passes through the second substrate and irradiates the optical diffraction layer 35, rich colors appear.

[0049] Example 4

[0050] This embodiment provides an anti-counterfeiting product, including the anti-counterfeiting element in embodiment 1 or embodiment 2 or embodiment 3.

[0051] The anti-counterfeiting product provided in this embodiment has the same color on the front and back sides of the part where the anti-counterfeiting element is embedded, thereby improving the aesthetics of the anti-counterfeiting product.

[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An anti-counterfeiting element, characterized in that: include: A first transparent substrate (1), wherein the first transparent substrate (1) has a first surface; A second transparent substrate (2), wherein the second transparent substrate (2) has a second surface, and the first surface and the second surface are arranged opposite to each other; At least one covering structure, the covering structure comprising a first metal reflective layer (31), a second metal reflective layer (32) and a first magnetic region (33), the first metal reflective layer (31) being arranged on the first surface, the second metal reflective layer (32) being arranged on the second surface, the first magnetic region (33) being located between the first metal reflective layer (31) and the second metal reflective layer (32), and the first metal reflective layer (31) and the second metal reflective layer (32) both covering the first magnetic region (33); The first metal reflective layer (31) and the second metal reflective layer (32) have the same reflected light density.

2. The anti-counterfeiting element according to claim 1, characterized in that: The covering structure further comprises a second magnetic region (34), wherein the second magnetic region (34) is arranged between the first metal reflective layer (31) and the second metal reflective layer (32), and the first metal reflective layer (31) and the second metal reflective layer (32) both cover the second magnetic region (34).

3. The anti-counterfeiting element according to claim 2, characterized in that: The first magnetic region (33) and the second magnetic region (34) are arranged at intervals or partially overlap.

4. The anti-counterfeiting element according to claim 3, characterized in that: The pulse orientations of the first magnetic region (33) and the second magnetic region (34) are opposite or the same.

5. The anti-counterfeiting element according to claim 1 or 4, characterized in that: The first metal reflective layer (31) is a set first pattern, and the second metal reflective layer (32) is a set second pattern.

6. The anti-counterfeiting element according to claim 5, characterized in that: The first metal reflective layer (31) and the second metal reflective layer (32) are both formed into a set pattern through a vacuum local evaporation process.

7. The anti-counterfeiting element according to claim 6, characterized in that: The orthographic projection of the first metal reflective layer (31) on the second surface at least covers a portion of the second metal reflective layer (32).

8. The anti-counterfeiting element according to claim 1 or 7, characterized in that: It also includes an optical diffraction layer (35), wherein the optical diffraction layer (35) is located between the second surface and the second metal reflective layer (32), and the optical diffraction layer (35) covers the second metal reflective layer (32).

9. An anti-counterfeiting product, characterized in that: The anti-counterfeiting element comprises the anti-counterfeiting element according to any one of claims 1 to 8.

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