Magnetic field orientation device and anti-counterfeiting product

Abstract

The invention relates to the technical field of magnetic anti-counterfeiting, and discloses a magnetic field orientation device and an anti-counterfeiting product. The magnetic field orientation device comprises a first magnet and a second magnet, the first magnet is configured to have an included angle A between the magnetization direction of the first magnet and the first direction, and the included angle A is larger than 0 degree and smaller than 90 degrees and is suitable for generating a first magnetic field; the first direction is perpendicular to the printing surface of the printing stock; the included angle B between the magnetization direction of the second magnet and the first direction is larger than 0 degree and smaller than 90 degrees, and the second magnet is suitable for generating a second magnetic field. The magnetization direction of the first magnet and the magnetization direction of the second magnet are the same in the direction of components in the first direction. The first magnetic field and the second magnetic field simultaneously act on the printing stock to form a composite magnetic field for forming a magnetic orientation area on the printing surface and performing magnetic orientation on a magnetic pigment sheet in a magnetic ink layer on the printing surface, so that the position and the angle direction of the magnetic pigment sheet in the ink layer are changed; therefore, magnetic orientation patterns with different forms at different viewing angles are formed.

Description

Technical Field

[0001] The present invention relates to the field of magnetic anti-counterfeiting technology, and in particular to a magnetic field orientation device and an anti-counterfeiting product. Background Art

[0002] Magnetic ink plays a crucial role in anti-counterfeiting technology and is widely used on documents, banknotes, and valuable goods. Magnetic ink contains magnetic pigment flakes that can align along a magnetic field. During the printing process, a specific magnetic field is generated within the ink to orient the flakes. This allows the flakes to have varying angular orientations in different areas, creating a unique magnetic orientation pattern within the ink. Furthermore, the flakes also exhibit the traditional optically variable effect of changing color with viewing angle.

[0003] The magnetic field orientation device in the prior art can only form a fixed magnetic orientation pattern inside the magnetic ink layer under the action of the magnetic field of the magnet. The pattern effect is single and has the same pattern shape under different observation angles, and the anti-counterfeiting effect is poor. Summary of the Invention

[0004] In view of this, the present invention provides a magnetic field orientation device and an anti-counterfeiting product to solve the problem that the existing magnetic field orientation device can only form a fixed magnetic orientation pattern inside the magnetic ink layer under the action of the magnetic field of the magnet, and its pattern effect is single, with the same pattern shape under different observation angles, and the anti-counterfeiting effect is poor.

[0005] In the first aspect, the present invention provides a magnetic field orientation device, comprising: a first magnet and a second magnet, the first magnet being configured such that the angle between its magnetization direction and the first direction is A, wherein 0°<A<90°, and the first magnet is suitable for generating a first magnetic field; the first direction is perpendicular to the printing surface of the substrate; the second magnet being configured such that the angle between its magnetization direction and the first direction is B, wherein 0°<B<90°, and the second magnet is suitable for generating a second magnetic field; the component of the magnetization direction of the first magnet in the first direction is in the same direction as the component of the magnetization direction of the second magnet in the first direction; the first magnetic field and the second magnetic field act on the substrate simultaneously to form a composite magnetic field on the printing surface, and the composite magnetic field is used to form a magnetic orientation area on the printing surface.

[0006] Beneficial Effects: The first magnetic field generated by the first magnet and the second magnetic field generated by the second magnet act simultaneously on the substrate, and the magnetization directions of the first and second magnets are aligned in the same direction through the substrate. This allows the first and second magnetic fields of the first magnet to intersect to form a composite magnetic field. This composite magnetic field acts on the substrate's printing surface, facilitating the formation of an effective magnetic orientation region to magnetically orient the magnetic pigment flakes in the magnetic ink layer located on the printing surface, causing the position and angular orientation of the magnetic pigment flakes in the ink layer to change, thereby forming a distinct and variable magnetic orientation pattern. The first direction is perpendicular to the substrate's printing surface. By setting the angle A between the magnetization direction of the first magnet and the first direction and the angle B between the magnetization direction of the second magnet and the first direction, with 0° < A < 90° and 0° < B < 90°, the resulting magnetic orientation pattern exhibits different patterns at different viewing angles, creating a 3D effect. This magnetic field orientation device provides diverse magnetic orientation pattern display formats and meets the demand for higher-level anti-counterfeiting effects.

[0007] In an optional embodiment, the magnetization direction of the first magnet is not parallel to the magnetization direction of the second magnet.

[0008] Beneficial effect: Due to the non-parallel magnetization directions of the first magnet and the second magnet, the first magnetic field and the second magnetic field form a more complex composite magnetic field, and the three-dimensional sense of the pattern with a 3D effect is enhanced.

[0009] In an optional embodiment, the first magnet and the second magnet are adjacently arranged on the same side of the printing substrate, and the first magnet and the second magnet are symmetrically arranged relative to a plane perpendicular to the printing surface.

[0010] Beneficial effects: The first magnet and the second magnet are arranged adjacent to each other on the same side of the printing substrate, which makes it easy to control the intensity and area of the composite magnetic field of the first magnetic field and the second magnetic field on the printing surface. The composite magnetic field can fully act on the printing surface of the substrate to form an effective magnetic orientation area; and the symmetrical arrangement of the first magnet and the second magnet is more conducive to forming a stable composite magnetic field, thereby improving the molding effect of the magnetic orientation pattern on the printing surface. The magnetic orientation patterns with different shapes at different viewing angles effectively improve the anti-counterfeiting performance.

[0011] In an optional embodiment, the angle between the projection of the magnetization direction of the first magnet on the printing surface and the projection of the magnetization direction of the second magnet on the printing surface is C, where 0°<C<180°.

[0012] Beneficial effect: After determining the positions of the first magnet and the second magnet in a horizontal plane parallel to the printing surface, they are rotated in the horizontal direction to facilitate determining the magnetization directions of the two magnets, thereby controlling the composite magnetic field formed by the first magnetic field and the second magnetic field, thereby making the composite magnetic field of the magnetic field orientation device more complex, and further improving the anti-counterfeiting performance of the magnetic orientation pattern formed by the magnetic field orientation device.

[0013] In an optional embodiment, the first magnet and the second magnet have the same geometric shape.

[0014] Beneficial effects: Two magnets with the same geometric shape help form a highly symmetrical magnetic field distribution, achieve consistent magnetization direction, avoid magnetization unevenness or magnetic field distortion caused by shape differences, and ensure stable performance in an environment with temperature changes.

[0015] In an optional embodiment, the first magnet and the second magnet are made of magnetic material of the same brand.

[0016] Beneficial effects: Magnetic materials of the same brand have consistent key parameters such as remanence, coercivity, and maximum magnetic energy product, ensuring highly consistent magnetic field strength and stability in magnetization applications. Magnetic materials of the same brand also have the same temperature coefficient, ensuring stable performance in high-temperature environments.

[0017] In an optional embodiment, in the first direction, an end of the first magnet close to the printing surface has a first distance from the printing surface, and an end of the second magnet close to the printing surface has a second distance from the printing surface.

[0018] Beneficial effect: There is a certain distance between the first magnet and the second magnet and the printing surface of the substrate, which helps to easily adjust the magnetization direction of the first magnet and the second magnet, thereby adjusting the composite magnetic field acting on the printing surface.

[0019] In an optional embodiment, the first spacing and the second spacing are equal.

[0020] Beneficial effect: The first magnet and the second magnet have equal distances from the printing surface, which helps the first magnet and the second magnet form consistent magnetic field properties on the printing surface, such as magnetic field strength, and facilitates the formation of a stable composite magnetic field.

[0021] In an optional embodiment, the end of the first magnet close to the printing surface is a first line segment, and the first magnet rotates around the first line segment in a plane parallel to the printing surface; the end of the second magnet close to the printing surface is a second line segment, and the second magnet rotates around the second line segment in a plane parallel to the printing surface.

[0022] Beneficial effect: By setting the structure of the first magnet and the second magnet closest to the printing surface as a line segment, it is convenient to flexibly adjust and obtain the specific angle of the magnetization direction of the magnet, thereby increasing the controllability of the composite magnetic field of the magnetic field orientation device, and further improving the anti-counterfeiting performance of the magnetic orientation pattern formed by the magnetic field orientation device.

[0023] In an optional embodiment, the end of the first magnet close to the printing surface is the first point, and the first magnet rotates around the first point in a plane parallel to the printing surface; the end of the second magnet close to the printing surface is the second point, and the second magnet rotates around the second point in a plane parallel to the printing surface.

[0024] Beneficial effect: By setting the structure where the first magnet and the second magnet are closest to the printing surface as a point, it is convenient to flexibly adjust and obtain the specific angle of the magnetization direction of the magnet, thereby increasing the controllability of the composite magnetic field of the magnetic field orientation device, and further improving the anti-counterfeiting performance of the magnetic orientation pattern formed by the magnetic field orientation device.

[0025] In an optional embodiment, at least one first magnet and at least one second magnet constitute a magnetic orientation assembly; the number of the magnetic orientation assemblies is one or more.

[0026] Beneficial effect: By flexibly setting the number of magnetic orientation components, it is possible to form more styles of magnetic orientation patterns and improve anti-counterfeiting performance.

[0027] In a second aspect, the present invention further provides an anti-counterfeiting product, which is prepared using the above-mentioned magnetic field orientation device.

[0028] Beneficial effects: It can form a variety of magnetic orientation pattern display forms and meet the needs of higher-level anti-counterfeiting effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 is a structural schematic diagram of a magnetic field orientation device according to an embodiment of the present invention;

[0031] Figure 2 is another structural schematic diagram of the magnetic field orientation device according to an embodiment of the present invention;

[0032] Figure 3 is a schematic projection diagram of the magnetic field orientation device according to an embodiment of the present invention on the printing surface;

[0033] Figure 4 is a schematic diagram showing an image of the magnetic poles of a first magnet according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the effect at a first viewing angle after a magnetic orientation pattern is obtained on a printing surface using the magnetic field orientation device according to an embodiment of the present invention;

[0035] Figure 6 2 is a schematic diagram showing the effect at a second viewing angle after a magnetic orientation pattern is obtained on a printing surface using the magnetic field orientation device according to an embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the effect at a third viewing angle after a magnetic orientation pattern is obtained on a printing surface using the magnetic field orientation device according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 100. First magnet; 200. Second magnet. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended only to illustrate the present invention and are not intended to limit it. It should also be noted that, for ease of description, the drawings only illustrate some, but not all, structures relevant to the present invention. In the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion about the present invention. The accompanying drawings illustrate various schematic diagrams of structures according to embodiments of the present invention. These figures are not drawn to scale; certain details may be exaggerated or omitted for clarity. The shapes, relative sizes, and positional relationships of various regions and layers shown in the figures are merely illustrative and may vary in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions based on actual needs. In the context of the present invention, when a layer / element is referred to as being "on" another layer / element, the layer / element may be directly on the other layer / element, or an intervening layer / element may exist between them. In addition, if a layer / element is "on" another layer / element in one orientation, then when the orientation is reversed, the layer / element would be "below" the other layer / element.

[0040] Existing anti-counterfeiting documents typically used as printed materials include securities, banknotes, and other items. Their structure specifically comprises a substrate and multiple functional layers, such as a magnetic ink layer, sequentially applied thereon. The surface of the substrate facing away from the substrate serves as the printing surface. The magnetic field of a magnetic field orientation device, under the influence of a magnet, can only form a fixed magnetic orientation pattern within the magnetic ink layer. This results in a uniform pattern, with the pattern appearing identical from different viewing angles, resulting in poor anti-counterfeiting effectiveness.

[0041] Based on this, an embodiment of the present invention provides a magnetic field orientation device, which forms a composite magnetic field on the printing surface of the substrate by configuring the magnetization directions of the first magnet 100 and the second magnet 200, so that the magnetic orientation pattern formed on the printing surface has different patterns under different observation angles and forms a pattern with a 3D effect. The magnetic field orientation device provides a variety of magnetic orientation pattern display forms and meets the needs of a higher level of anti-counterfeiting effect.

[0042] like Figures 1 to 3 As shown, this embodiment provides a magnetic field orientation device, including: a first magnet 100 and a second magnet 200, the first magnet 100 is configured so that the angle between its magnetization direction and the first direction is A, wherein 0°<A<90°, and the first magnet 100 is suitable for generating a first magnetic field; the first direction is perpendicular to the printing surface of the substrate; the second magnet 200 is configured so that the angle between its magnetization direction and the first direction is B, wherein 0°<B<90°, and the second magnet 200 is suitable for generating a second magnetic field; the component of the magnetization direction of the first magnet 100 in the first direction is in the same direction as the component of the magnetization direction of the second magnet 200 in the first direction; the first magnetic field and the second magnetic field act on the substrate simultaneously to form a composite magnetic field on the printing surface, and the composite magnetic field is used to form a magnetic orientation area on the printing surface.

[0043] Specifically, the plane indicated by S is the printing surface, and the first magnet 100 and the second magnet 200 can be permanent magnets. The materials of the first magnet 100 and the second magnet 200 are not limited, and can be metallic magnetic materials or non-metallic magnetic materials. Metallic magnetic materials mainly include electrical steel, nickel-based alloys, and rare earth alloys, and non-metallic magnetic materials mainly include ferrite materials. The first magnet 100 and the second magnet 200 can use the same magnetic material. Preferably, the first magnet 100 and the second magnet 200 are both rare earth permanent magnet materials. Rare earth permanent magnet materials have higher magnetic properties than other magnetic materials, and rare earth permanent magnet materials have a long magnetic attenuation period, which can enable the rare earth permanent magnet materials to maintain long-term stable performance.

[0044] The magnetic field strength of the first magnet 100 and the second magnet 200 can be set according to the size of the substrate, the material of the magnetic pigment flakes in the ink layer, and other actual conditions, and is not limited here. The spacing distance between the first magnet 100 and the substrate along the first direction can be set according to the magnetic strength of the magnet, the size of the substrate, or other actual conditions, and the spacing distance between the second magnet 200 and the substrate along the first direction can be set according to the magnetic strength of the magnet, the size of the substrate, or other actual conditions, and is not limited here. The magnetization direction of the magnet is: when the magnet is subjected to an external magnetic field, the magnetic domains in the magnet will begin to rotate and gradually arrange themselves into a state consistent with the direction of the external magnetic field. This process is called magnetization. After magnetization, the overall magnetic direction of the magnet is the same as or close to the direction of the external magnetic field. This direction is called the magnetization direction of the magnet. Figure 1 As shown, the angle between the magnetization direction of the first magnet 100 and the first direction is A, 0°<A<90°, the angle between the magnetization direction of the second magnet 200 and the first direction is B, 0°<B<90°, and the first direction is Figure 1 The direction pointed by the straight arrow Z in the middle is perpendicular to the printing surface of the substrate. Therefore, the angle between the magnetization direction of the first magnet 100 and the printing surface is greater than 0° and less than 90°, and the angle between the magnetization direction of the second magnet 200 and the printing surface is greater than 0° and less than 90°, that is, the magnetization direction of the first magnet 100 is neither parallel to the printing surface nor perpendicular to the printing surface, and the magnetization direction of the second magnet 200 is neither parallel to the printing surface nor perpendicular to the printing surface, that is, the magnetization directions of the first magnet 100 and the second magnet 100 are both inclined.

[0045] Moreover, in this embodiment, the component of the magnetization direction of the first magnet 100 in the first direction is in the same direction as the component of the magnetization direction of the second magnet 200 in the first direction. In other words, the magnetization directions of the first magnet 100 and the second magnet 200 pass through the substrate in the same direction. In one case, the magnetization directions of the first magnet 100 and the second magnet 200 both pass through from the bottom side of the substrate to the top side of the substrate. In another case, the magnetization directions of the first magnet 100 and the second magnet 200 both pass through from the top side of the substrate to the bottom side of the substrate. In this way, the composite magnetic field formed by the intersection of the first magnetic field of the first magnet 100 and the second magnetic field of the second magnet 200 is more likely to form an effective magnetic orientation region, and ultimately form a magnetic orientation pattern with clear and changing patterns.

[0046] The first magnetic field generated by the first magnet 100 and the second magnetic field generated by the second magnet 200 act on the printing material at the same time, and cross-influence each other to form a composite magnetic field. The composite magnetic field acts on the printing surface of the printing material to form an effective magnetic orientation area on the printing surface, and then magnetically orients the magnetic pigment flakes in the magnetic ink layer located on the printing surface, so that the position and angular direction of the magnetic pigment flakes in the ink layer change to form a magnetic orientation pattern. The first direction is perpendicular to the printing surface of the substrate. By setting the angle between the magnetization direction of the first magnet 100 and the first direction to A, and the angle between the magnetization direction of the second magnet 200 and the first direction to B, with 0°<A<90° and 0°<B<90°, the magnetic field of the magnet is spatially arranged and distributed. The strength of the magnetic field or the density of the magnetic lines of force are different at different heights from the magnet. Therefore, when the magnetic pigment flakes in the ink layer on the substrate are at different heights from the first magnet 100 and the second magnet 200, the magnetic orientation pattern formed is visually different due to the different strengths of the composite magnetic field. Moreover, the formed magnetic orientation pattern has different patterns at different viewing angles and forms a 3D effect pattern. This not only enriches the visual effect of the magnetic orientation pattern, but also diversifies the anti-counterfeiting effect. The magnetic field orientation device of this embodiment provides a variety of magnetic orientation pattern display forms at different viewing angles to adapt to a variety of artistic design patterns and meet the demand for higher-level anti-counterfeiting effects.

[0047] In one embodiment, the magnetization direction of the first magnet 100 is not parallel to the magnetization direction of the second magnet 200 , so that a more complex composite magnetic field is formed by the first magnet 100 and the second magnet 200 and the stereoscopic effect of the pattern is enhanced.

[0048] Furthermore, the first magnet 100 and the second magnet 200 of this embodiment are located on the same side of the printing substrate and are arranged adjacent to each other. For example, the first magnet 100 and the second magnet 200 are both located directly below the printing substrate or directly above the printing substrate, and the first magnet 100 and the second magnet 200 are arranged adjacent to each other on the left and right sides. The first magnet 100 and the second magnet 200 are arranged adjacent to each other on the same side of the printing substrate, which facilitates the control of the intensity and area of the composite magnetic field of the first magnetic field and the second magnetic field on the printing surface. The composite magnetic field can fully act on the printing surface of the printing substrate to form an effective magnetic orientation area; and the symmetrical arrangement of the first magnet 100 and the second magnet 200 is more conducive to forming a stable composite magnetic field, improving the molding effect of the magnetic orientation pattern formed on the printing surface, and the magnetic orientation pattern with different shapes at different viewing angles effectively improves the anti-counterfeiting performance.

[0049] refer to Figure 3The schematic diagram of the magnetic field orientation device projected onto the printing surface shows that the angle C between the projection of the magnetization direction of the first magnet 100 and the projection of the magnetization direction of the second magnet 200 on the printing surface in this embodiment is, where 0°<C<180°. This can be understood as the following: after determining the positions of the first magnet 100 and the second magnet 200 in a horizontal plane parallel to the printing surface, they are rotated in this horizontal direction to facilitate the determination of the magnetization directions of the two magnets, thereby controlling the composite magnetic field formed by the first and second magnetic fields. This further increases the complexity of the composite magnetic field of the magnetic field orientation device, thereby further improving the anti-counterfeiting performance of the magnetic orientation pattern formed by the magnetic field orientation device.

[0050] In one embodiment, the first magnet 100 and the second magnet 200 have the same geometric shape. Two magnets with the same geometric shape help form a highly symmetrical magnetic field distribution, achieve consistent magnetization direction, avoid magnetization unevenness or magnetic field distortion caused by shape differences, and ensure stable performance in environments with fluctuating temperatures.

[0051] Furthermore, the first magnet 100 and the second magnet 200 are made of the same brand of magnetic material. Magnetic materials of the same brand have consistent key parameters such as remanence (Br), coercivity (Hcj), and maximum magnetic energy product ((BH)max), ensuring highly consistent magnetic field strength and stability during magnetization applications. Magnetic materials of the same brand also have the same temperature coefficient, ensuring stable performance in high-temperature environments.

[0052] The spacing distance between the first magnet 100 and the printing substrate along the first direction can be set according to the magnetic strength of the magnet, the size of the printing substrate or other actual conditions. The spacing distance between the second magnet 200 and the printing substrate along the first direction can be set according to the magnetic strength of the magnet, the size of the printing substrate or other actual conditions. In this embodiment, it is preferred that the first spacing between the end of the first magnet 100 close to the printing surface and the printing surface is equal to the second spacing between the end of the second magnet 200 close to the printing surface and the printing surface. The specific shapes of the first magnet 100 and the second magnet 200 are not limited. They can be regular shapes such as prisms, prisms, cylinders, and frustums, or other irregular shapes, as long as they can be magnetized to form a certain magnetization direction. In this embodiment, the first magnet 100 and the second magnet 200 are taken as cubes as an example for the following explanation:

[0053] As an optional embodiment, the end of the first magnet 100 close to the printing surface is a first line segment, and the first magnet 100 rotates around the first line segment in a plane parallel to the printing surface; the end of the second magnet 200 close to the printing surface is a second line segment, and the second magnet 200 rotates around the second line segment in a plane parallel to the printing surface. Specifically, the first magnet 100 and the second magnet 200 are placed adjacent to each other on one side of the printing surface of the printing material, and the first magnet 100 and the second magnet 200 are both placed with one edge closest to the printing surface. Figure 1 As shown, the first magnet 100 and the second magnet 200 can be arranged in mirror symmetry relative to a vertical plane perpendicular to the printing surface, and the magnetization direction of the first magnet 100 is along the line connecting the centers of a set of opposite surfaces of the cube. In addition, on this basis, this embodiment rotates the first magnet 100 and the second magnet 200 around the edge, as shown in FIG. Figure 2 As shown, the composite magnetic field formed by the first magnetic field and the second magnetic field is adjusted. Figure 3 Schematic diagram of the projection of the first magnet 100 and the second magnet 100 on the printing surface of the printing material in this embodiment.

[0054] As another optional embodiment, the end of the first magnet 100 close to the printing surface is the first point, and the first magnet 100 rotates around the first point in a plane parallel to the printing surface; the end of the second magnet 200 close to the printing surface is the second point, and the second magnet 200 rotates around the second point in a plane parallel to the printing surface. Specifically, the first magnet 100 and the second magnet 200 are arranged adjacent to each other on one side of the printing surface of the printing material, and at the same time, the first magnet 100 and the second magnet 200 are arranged with one of their vertices closest to the printing surface. At this time, the first magnet 100 and the second magnet 200 can also be arranged in a mirror-symmetrical manner relative to a vertical plane perpendicular to the printing surface. In addition, on this basis, this embodiment rotates the first magnet 100 and the second magnet 200 around the vertex to adjust the composite magnetic field formed by the first magnetic field and the second magnetic field.

[0055] In this embodiment, the magnetization direction of the first magnet 100 and the magnetization direction of the second magnet 200 are formed as a line connecting the centers of a set of relative surfaces, which makes it easy to tilt the magnetization direction with respect to the first direction and to obtain and control a certain tilt angle.

[0056] Figure 4 The magnetic pole display image of the magnetic field orientation device of this embodiment is shown by taking the first magnet 100 as an example, wherein the dotted box shows a schematic diagram of part of the first magnetic field, and the small white area in the middle shows the first magnet 100.

[0057] like Figures 5 to 7 Schematic diagram of the effect of magnetic orientation patterns at different angles obtained by using the magnetic field orientation device in this embodiment. Figure 5 This is a schematic diagram of the effect under the normal observation perspective; Figure 6 yes Figure 5 Schematic diagram of the effect of flipping the magnetic orientation pattern upward at a set angle (the set angle can be adjusted according to actual conditions, and the set angle is 45°). Figure 7 yes Figure 5 Schematic diagram of the effect of flipping the magnetic orientation pattern downward by a set angle (the set angle is -45°).

[0058] In one embodiment, at least one first magnet 100 and at least one second magnet 200 constitute a magnetic orientation assembly, that is, the magnetic orientation assembly may include one or more first magnets 100 and one or more second magnets 200. Preferably, in this embodiment, the magnetic orientation assembly includes one first magnet 100 and one second magnet 200. This embodiment does not limit the number of magnetic orientation assemblies. Preferably, there is one magnetic orientation assembly, and the single-layer structure is easy to use and has good usability. Of course, there may also be multiple magnetic orientation assemblies. When there are multiple magnetic orientation assemblies, the multiple magnetic orientation assemblies can be stacked or arranged in sequence. By increasing the number of magnetic orientation assemblies, the efficiency of forming the magnetic orientation pattern can be increased.

[0059] The method for preparing a magnetic orientation pattern using the above magnetic field orientation device is as follows:

[0060] S1: Place the substrate horizontally so that the magnetic ink in the following steps can be evenly distributed on the substrate.

[0061] S2: Printing magnetic ink evenly on the printing surface of the substrate to form a magnetic ink layer. The magnetic ink contains magnetic pigment flakes that are randomly distributed on the substrate.

[0062] S3: placing a magnetic field orientation device on the lower surface of the substrate, and using the magnetic field orientation device to orient the magnetic pigment flakes in the magnetic ink.

[0063] S3: The magnetic ink layer is dried to solidify the magnetic orientation pattern formed on the magnetic ink layer.

[0064] Secondly, embodiments of the present invention further provide an anti-counterfeiting product manufactured using the aforementioned magnetic field orientation device. This device can produce a variety of magnetic orientation pattern display forms, meeting the demand for a higher level of anti-counterfeiting effectiveness. Furthermore, the magnetic field orientation device has a simple structure, and the magnet can be a common magnet, eliminating the need for special processing. Furthermore, the magnet's position is fixed, offering advantages in printing speed, quantity, and method, and also ensuring greater consistency in the printed pattern.

[0065] While the above description does not provide detailed technical details regarding the patterning and etching of each layer, those skilled in the art will appreciate that various technical means can be employed to form layers, regions, and the like in desired shapes. Furthermore, those skilled in the art may devise methods that differ from those described above to form the same structure. Furthermore, while each embodiment has been described separately, this does not mean that the measures in each embodiment cannot be advantageously combined.

[0066] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A magnetic field orientation device, characterized in that: include: A first magnet (100), wherein the angle between its magnetization direction and a first direction is A, wherein 0°<A<90°, and the first magnet (100) is suitable for generating a first magnetic field; the first direction is perpendicular to a printing surface of a printing material; a second magnet (200), the second magnet (200) being configured such that an angle B is formed between its magnetization direction and the first direction, wherein 0°<B<90°, and the second magnet (200) is suitable for generating a second magnetic field; The component of the magnetization direction of the first magnet (100) in the first direction is in the same direction as the component of the magnetization direction of the second magnet (200) in the first direction; the first magnetic field and the second magnetic field act on the printing material simultaneously to form a composite magnetic field on the printing surface, and the composite magnetic field is used to form a magnetic orientation area on the printing surface.

2. The magnetic field orientation device according to claim 1, characterized in that: The magnetization direction of the first magnet (100) is not parallel to the magnetization direction of the second magnet (200).

3. The magnetic field orientation device according to claim 1, characterized in that: The first magnet (100) and the second magnet (200) are adjacently arranged on the same side of the printing substrate, and the first magnet (100) and the second magnet (200) are symmetrically arranged relative to a plane perpendicular to the printing surface.

4. The magnetic field orientation device according to claim 1, characterized in that: The included angle between the projection of the magnetization direction of the first magnet (100) on the printing surface and the projection of the magnetization direction of the second magnet (200) on the printing surface is C, wherein 0°<C<180°.

5. The magnetic field orientation device according to claim 1, characterized in that: The first magnet (100) and the second magnet (200) have the same geometric shape.

6. The magnetic field orientation device according to claim 1, characterized in that: The first magnet (100) and the second magnet (200) are made of magnetic material of the same grade.

7. The magnetic field orientation device according to claim 1, characterized in that: In the first direction, one end of the first magnet (100) close to the printing surface has a first distance from the printing surface, and one end of the second magnet (200) close to the printing surface has a second distance from the printing surface.

8. The magnetic field orientation device according to claim 7, characterized in that: The first interval is equal to the second interval.

9. The magnetic field orientation device according to claim 8, characterized in that: One end of the first magnet (100) close to the printing surface is a first line segment, and the first magnet (100) rotates around the first line segment in a plane parallel to the printing surface; one end of the second magnet (200) close to the printing surface is a second line segment, and the second magnet (200) rotates around the second line segment in a plane parallel to the printing surface.

10. The magnetic field orientation device according to claim 8, characterized in that: One end of the first magnet (100) close to the printing surface is a first point, and the first magnet (100) rotates around the first point in a plane parallel to the printing surface; one end of the second magnet (200) close to the printing surface is a second point, and the second magnet (200) rotates around the second point in a plane parallel to the printing surface.

11. The magnetic field orientation device according to any one of claims 1 to 10, characterized in that: At least one of the first magnets (100) and at least one of the second magnets (200) constitute a magnetic orientation assembly; The number of the magnetic orientation components is one or more.

12. An anti-counterfeiting product, characterized in that: The magnetic field orientation device is prepared using the magnetic field orientation device described in any one of claims 1 to 11.

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