Magnetic orientation device and method for realizing anti-counterfeiting of magnetic optically variable ink

Abstract

The invention provides a magnetic orientation device and method for realizing anti-counterfeiting of magnetic optically variable ink, and the device comprises a magnet array support, the magnet array support is provided with a through hole, the magnet array support is internally provided with a magnet array, the magnet array is arranged at the periphery of the through hole in the circumferential direction, the magnet array support is connected with a rotating shaft tube, and the rotating shaft tube is connected with a rotating shaft. The rotating shaft tube comprises a shaft tube outer layer and a shaft tube inner layer, and the shaft tube inner layer is sequentially sleeved with a dial and an operating handle; one end of the dial is attached to the magnet array support, and the other end of the dial is fixed to the outer layer of the shaft tube. A device bracket is fixed at the lower part of the rotating shaft tube; the sample bracket is used for placing a sample; the invention aims to generate a uniform magnetic field of which the direction can be accurately controlled and monitored on the premise of ensuring the stability of the magnetic field, so as to carry out magnetic orientation on the magnetic optically variable ink, so that the magnetic pigment sheets in the ink can be arranged along the required direction, and the anti-counterfeiting capability is improved.

Description

Technical Field

[0001] The present invention relates to the field of magnetic orientation technology, and in particular to a magnetic orientation device and method for realizing anti-counterfeiting of magnetic optically variable ink. Background Art

[0002] Magnetic optically variable ink is a new type of ink with magnetism. It applies the principle of optical variableness and adds magnetic optically variable film fragments to the ink, which makes the ink have a dynamic color-changing effect. It can make the ink present different colors at different visual angles while being magnetic, thus meeting higher anti-counterfeiting requirements. This technology is widely used in currency, certificates, securities and some large tobacco and alcohol brand packaging. Some tickets and bank passbooks in daily life also use it for anti-counterfeiting. The dynamic color-changing effect of its printed products cannot be reproduced by high-definition scanners, copiers and other equipment. However, with the development and advancement of technology, the requirements for anti-counterfeiting have become more and more stringent. The magnetic directional pattern printed by a single-color magnetic optically variable ink sometimes cannot meet higher anti-counterfeiting requirements. How to significantly promote the further upgrading of anti-counterfeiting technology while reducing the technical cost of the upgrade has become a top priority.

[0003] In the process of using magnetic optically variable ink, in order to present the optical effect of light and dark changes, it is often necessary to generate a specific magnetic field through a magnetic orientation device, so that the magnetic pigment flakes can be oriented according to the direction of the magnetic lines of force and change the arrangement to produce a unique magnetic orientation pattern. In practical applications, the quality of the pattern produced by magnetic orientation depends on the uniformity of the magnetic field. The more uniform the magnetic field, the higher the quality of the pattern produced after magnetic orientation. At present, the high-demand anti-counterfeiting field often requires two or more different colors of magnetic optically variable inks. These magnetic optically variable inks are magnetically oriented in different directions and can present richer colors. This requires that the magnetic field angle of the magnetic orientation device must be flexible and variable. The uniqueness of the magnetic orientation pattern depends on the color of the magnetic optically variable ink used on the one hand, and on the angle of the oriented magnetic field on the other hand. Different oriented magnetic field angles can make the colors of the magnetic pigment flakes at different angles have clear distinctions, which requires the magnetic orientation device to have the function of monitoring the direction of the magnetic field and realizing precise control of the magnetic field angle. Summary of the invention

[0004] The purpose of the present invention is to provide a magnetic orientation device and method for realizing anti-counterfeiting of magnetic optically variable ink, which can generate a uniform magnetic field whose direction can be precisely controlled and monitored under the premise of ensuring the stability of the magnetic field, so as to magnetically orient the magnetic optically variable ink, so that the magnetic pigment flakes in the ink can be arranged in the required direction, thereby greatly improving the anti-counterfeiting ability.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink, comprising a magnet array bracket, a through hole is opened on the magnet array bracket, a magnet array is arranged inside the magnet array bracket, and the magnet array is circumferentially arranged outside the through hole, the magnet array bracket is connected to a rotating shaft tube, the rotating shaft tube comprises a shaft tube outer layer and a shaft tube inner layer, and a dial and an operating handle are sequentially sleeved on the shaft tube inner layer; one end of the dial is fitted with the magnet array bracket, and the other end of the dial is fixed to the shaft tube outer layer, and the shaft tube outer layer is located between the dial and the operating handle; a device bracket is fixed to the lower part of the rotating shaft tube; and also includes a sample bracket for placing a sample, one end of the sample bracket for placing the sample passes through the through hole, and the other end of the sample bracket and the free end of the device bracket are both fixed on the base;

[0007] Furthermore, the magnet array is composed of a plurality of magnets, and the magnets are arranged according to the Halbach array rule;

[0008] Furthermore, the magnet array bracket is fixedly connected to the inner layer of the shaft tube;

[0009] Furthermore, the magnet array support is marked with an S (south) pole of the magnetic field in the central area generated by the magnet array;

[0010] Further, the sample holder comprises a vertical holder, an upper holder is fixed on the top of the vertical holder, and a lower holder is fixed on the bottom of the vertical holder, and when in use, the sample is placed on the upper holder;

[0011] Furthermore, the upper bracket passes through the through hole, and the lower bracket is fixed on the base;

[0012] Furthermore, the upper bracket and the lower bracket are parallel to each other;

[0013] Further, the scale plate marks angles from 0° to 359° on the side of the arc, with the topmost point in the vertical direction being 0°;

[0014] Furthermore, the magnet array bracket, dial, rotating shaft tube, operating handle, sample bracket, device bracket and base are all made of non-magnetic conductive materials.

[0015] A magnetic orientation method for realizing anti-counterfeiting of magnetic optically variable ink using the above device comprises the following steps:

[0016] (1) Place the sample on the sample holder and turn the operating handle;

[0017] (2) The operating handle drives the magnet array bracket to rotate, and the magnet array bracket drives the magnet array to rotate, thereby changing the direction of the magnetic field in the central area generated by the magnet array;

[0018] (3) The dial is fixed, and the magnetic orientation direction of the magnetic optically variable ink can be quantitatively determined by changing and monitoring the direction of the magnetic field in the central area;

[0019] (4) The magnetic pigment flakes in the sample are aligned along the magnetic orientation direction, producing a unique magnetic orientation pattern.

[0020] The above technical solution has the following advantages or beneficial effects:

[0021] The present invention provides a magnetic orientation device for realizing the anti-counterfeiting of magnetic optically variable ink, which can generate a constant uniform magnetic field in the central area of ​​a magnet array. The internal uniform magnetic field improves the uniformity of the magnetic orientation pattern, ensures the pattern quality, and enables the magnetic pigment flakes in the ink to be arranged in a required direction, which can greatly improve the anti-counterfeiting ability of the pattern; by adopting a permanent magnet array to generate a magnetic field, costs can be saved and energy consumption can be reduced; by arranging the magnet array circumferentially, the sample placed on the sample holder (such as an anti-counterfeiting mark printed with magnetic optically variable ink) can be accurately oriented in the magnetic field, and this orientation effect can change the arrangement of magnetic particles in the ink, thereby showing a specific pattern or color change under light, providing an efficient and intuitive means for anti-counterfeiting verification; by setting a dial and an operating handle in the device, The user can precisely control the rotation angle and position of the magnet array, thereby achieving fine adjustment of the ink pattern on the sample. This adjustability not only improves the flexibility and accuracy of anti-counterfeiting verification, but is also suitable for anti-counterfeiting labels of different types and specifications. The stability and reliability of the entire device during operation are ensured by setting a close combination of the magnet array bracket and the rotating shaft tube, as well as the firm support of the device bracket and the base. This structural design helps to reduce vibration and offset, and ensure the accuracy and consistency of the anti-counterfeiting verification results. The rotation of the magnet array can be easily controlled by the operating handle, and the dial provides an intuitive reference, making the operation process simpler and faster, reducing the difficulty of operation and improving work efficiency. The overall structure of the device clearly serves ink anti-counterfeiting, is simple and convenient to operate, and has good portability.

[0022] Furthermore, the Halbach array, with its unique arrangement of magnets, can significantly enhance the magnetic field in a specific direction. This feature enables the magnet array to act more concentratedly and efficiently on the magnetic particles in the ink when orienting the magnetic field of the sample, thereby achieving a more precise pattern or color change effect, which not only improves the accuracy and reliability of anti-counterfeiting verification, but also enhances the security of anti-counterfeiting technology; through the arrangement of the Halbach array, the magnet array can produce a more uniform and stable magnetic field distribution, which is conducive to the uniform arrangement and ordering of the magnetic particles in the ink, thereby avoiding problems such as blurred patterns or color distortion caused by uneven magnetic fields. At the same time, the uniform magnetic field distribution also helps to improve the stability and consistency of anti-counterfeiting verification; the Halbach array can achieve the same magnetic field orientation effect with relatively fewer magnets and less energy consumption, which can improve energy utilization efficiency, which not only helps to reduce the manufacturing cost and operating cost of the equipment, but also helps to reduce energy consumption and environmental pollution; the design of the Halbach array enables the magnetic fields between the magnets to enhance each other, reduces leakage magnetic field and magnetic field distortion, thereby improving the quality of the magnetic field, and also improves the efficiency of the magnetic field, so that the device can maintain a high performance during operation.

[0023] Furthermore, by marking the S level of the magnetic field in the central area generated by the magnet array on the magnet array bracket, the direction of the magnetic field in the central area can be intuitively indicated, which not only helps to more accurately design and adjust the layout of the magnet array to ensure that the magnetic field in the central area achieves the required uniformity; it also helps to identify and reduce the interference of the external magnetic field on the magnetic field in the central area. During the design and use process, corresponding shielding or compensation measures can be taken for the S level direction to improve the stability and reliability of the magnetic field.

[0024] Furthermore, the vertical bracket serves as the main supporting structure, and its stability ensures the stability of the entire sample bracket during the operation of the device. The fixed design of the upper bracket and the lower bracket enables the sample to be firmly placed on the upper bracket to avoid displacement or shaking during the magnetic field orientation process, thereby ensuring the accuracy and reliability of anti-counterfeiting verification; the design of the upper bracket makes the placement and removal of the sample convenient and quick. The user only needs to gently place the sample on the upper bracket to start the anti-counterfeiting verification process. After the verification is completed, the sample can also be easily removed from the upper bracket without complicated operations or tools; the presence of the lower bracket not only enhances the overall stability of the sample bracket, but also helps to reduce the interference of external factors on the sample. For example, it can prevent the sample from having unnecessary contact or friction with other parts of the device, thereby ensuring the accuracy and consistency of the magnetic field orientation effect; the sample bracket enables the sample to be accurately located within the magnetic field action area of ​​the magnet array. This precise positioning helps to achieve the best magnetic field orientation effect, so that the magnetic particles in the ink can be arranged and changed in the expected manner, thereby presenting a clear anti-counterfeiting pattern or color change.

[0025] Furthermore, the parallel and stable bracket design helps to achieve more precise magnetic field control and directional positioning. During the anti-counterfeiting process, the direction and strength of the magnetic field need to be precisely controlled to ensure that the magnetic optically variable ink can be arranged according to a predetermined pattern to form a unique anti-counterfeiting pattern or effect; the stable bracket design also simplifies the operating process of the magnetic orientation device. The operator does not need to frequently adjust the bracket position or angle to achieve stable magnetic field output and precise ink arrangement, which not only improves work efficiency but also reduces operating difficulty and error rate; the sturdy bracket material and reasonable structural design make the magnetic orientation device more durable. During long-term use, it can resist adverse factors such as wear and deformation and maintain stable performance and accuracy, which is of great significance for ensuring the long-term effectiveness and reliability of anti-counterfeiting technology.

[0026] Furthermore, the use of non-magnetic materials can ensure that the entire magnetic orientation device will not be disturbed by the magnetic field from the device's own materials during operation, which is crucial for achieving precise magnetic field control and directional positioning, because any additional magnetic field may affect the arrangement effect of the magnetic optically variable ink, thereby reducing the accuracy and consistency of the anti-counterfeiting pattern; the use of non-magnetic materials helps to concentrate the energy of the magnetic field on the target sample, that is, the material containing magnetic optically variable ink can improve the efficiency of magnetic field utilization, so that the magnetic orientation process can be completed more quickly under the same magnetic field strength, thereby improving production efficiency; because non-magnetic materials do not absorb or conduct magnetic field energy, they can protect the magnet array from potential thermal stress or mechanical stress, which helps to extend the service life of the magnet array. , reducing the frequency of replacement and maintenance, thereby reducing operating costs; the scale is an important measuring element in the magnetic orientation device, and its accuracy directly affects the accuracy of the magnetic orientation. The use of non-magnetic materials can avoid measurement errors caused by magnetic field interference on the scale, ensuring the accuracy and reliability of the measurement results; the entire magnetic orientation device is constructed of non-magnetic materials, which helps to enhance the overall stability of the device. During operation, even if it is subjected to external vibration or impact, the device can maintain stable magnetic field output and precise control performance, thereby ensuring the consistency and reliability of the anti-counterfeiting pattern. At the same time, it can avoid magnetic field interference, ensure the purity and stability of the magnetic field, and accurately control the anti-counterfeiting effect of the magnetic optically variable ink, while extending the life of the equipment, reducing maintenance costs, and ensuring safety and convenience during operation.

[0027] Furthermore, by marking the angles from 0° to 359° on the dial, with the topmost point in the vertical direction being 0°, 360° all-round magnetic field direction control is provided, thereby ensuring that the magnetic pigments in the magnetic optically variable ink are arranged in a predetermined direction and angle; by changing the angle on the dial, a magnetic pigment arrangement with complex patterns and angle changes can be generated in the magnetic optically variable ink layer, thereby enhancing the visual effect and anti-counterfeiting performance of the anti-counterfeiting label; by combining different magnetic field directions and angle changes, multiple levels of anti-counterfeiting information can be introduced into the anti-counterfeiting label, and these information are intertwined and mutually verified, and can also make the anti-counterfeiting label more difficult to forge or copy.

[0028] The present invention provides a magnetic orientation method for realizing anti-counterfeiting of magnetic optically variable ink by using the above-mentioned device. By rotating the operating handle, the magnet array can be driven to rotate accordingly, thereby changing the direction of the magnetic field in the central area, and the method has high flexibility. The dial always indicates the direction of the central magnetic field. While changing the direction of the magnetic field, the method of the present invention can accurately control and monitor the direction of the magnetic field, ensuring that the magnetic orientation direction of the magnetic optically variable ink can be quantitatively determined in engineering applications, and has high flexibility. By accurately controlling the direction and intensity of the magnetic field, it can be ensured that the magnetic pigment flakes in the magnetic optically variable ink are accurately arranged in a predetermined direction, forming a unique and difficult-to-copy anti-counterfeiting pattern. This highly complex pattern greatly improves the anti-counterfeiting effect and makes forgery easier. more difficult; the use of auxiliary tools such as dials for precise measurement and monitoring can ensure the stability and consistency of the magnetic field direction during each magnetic orientation process, thereby ensuring the accuracy and repeatability of the anti-counterfeiting pattern and improving the overall quality of the product; the entire magnetic orientation process is easy and fast to operate, and can complete the magnetic orientation processing of a large number of samples in a short time, which helps to improve production efficiency and reduce production costs; since this method does not involve the use of harmful chemicals and the magnetic optically variable ink itself can be recycled and reused, it has good environmental protection and sustainability; this method is suitable for various materials containing magnetic optically variable inks, including paper, plastic, film, etc., and can be widely used in packaging, printing, labeling and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink;

[0030] Figure 2 A cross-sectional view of the structure of a magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink;

[0031] In the figure, 1-magnet array; 2-magnet array bracket; 3-dial; 4-rotating shaft tube; 401-shaft tube outer layer; 402-shaft tube inner layer; 5-operating handle; 6-sample bracket; 601-vertical bracket; 602-upper bracket; 603-lower bracket; 7-device bracket; 8-base. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1:

[0036] like Figure 1 and Figure 2 As shown, the present invention provides a magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink, comprising a magnet array bracket 2, a through hole is opened on the magnet array bracket 2, a magnet array 1 is arranged inside the magnet array bracket 2, and the magnet array 1 is circumferentially arranged outside the through hole, the magnet array bracket 2 is connected to a rotating shaft tube 4, the rotating shaft tube 4 comprises a shaft tube outer layer 401 and a shaft tube inner layer 402, and a dial 3 and an operating handle 5 are sequentially sleeved on the shaft tube inner layer 402; one end of the dial 3 is fitted with the magnet array bracket 2, and the other end of the dial 3 is fixed to the shaft tube outer layer 401, and the shaft tube outer layer 401 is located between the dial 3 and the operating handle 5; a device bracket 7 is fixed to the lower part of the rotating shaft tube 4; and a sample bracket 6 for placing a sample is also included, one end of the sample bracket 6 for placing the sample passes through the through hole, and the other end of the sample bracket 6 and the free end of the device bracket 7 are both fixed on the base 8;

[0037] Preferably, the magnet array 1 is composed of a plurality of magnets arranged according to the Halbach array rule;

[0038] Preferably, the magnet array support 2 is fixedly connected to the inner layer 402 of the shaft tube;

[0039] Preferably, the magnet array support 2 is marked with an S level of the magnetic field generated by the magnet array 1 in the central area;

[0040] Preferably, the sample holder 6 comprises a vertical holder 601, an upper holder 602 is fixed on the top of the vertical holder 601, and a lower holder 603 is fixed on the bottom of the vertical holder 601; the upper holder 602 passes through a through hole, and the lower holder 603 is fixed on the base 8; the upper holder 602 and the lower holder 603 are parallel to each other, and when in use, the sample is placed on the upper holder 602;

[0041] Preferably, the dial 3 marks angles from 0° to 359° on the arc-shaped side surface, with the topmost point in the vertical direction being 0°;

[0042] Preferably, the magnet array support 2, the dial 3, the rotating shaft tube 4, the operating handle 5, the sample support 6, the device support 7 and the base 8 are all made of non-magnetic materials.

[0043] A magnetic orientation method for realizing anti-counterfeiting of magnetic optically variable ink using the above device comprises the following steps:

[0044] (1) Place the sample on the sample holder 6 and turn the operating handle 5;

[0045] (2) The operating handle 5 drives the magnet array bracket 2 to rotate, and the magnet array bracket 2 drives the magnet array 1 to rotate, thereby changing the direction of the magnetic field in the central area generated by the magnet array 1;

[0046] (3) The scale plate 3 is fixed and the magnetic orientation direction of the optically variable magnetic ink can be quantitatively determined by changing and monitoring the direction of the magnetic field in the central area;

[0047] (4) The magnetic pigment flakes in the sample are aligned along the magnetic orientation direction, producing a unique magnetic orientation pattern.

[0048] Embodiment 2:

[0049] like Figure 1 As shown, the present invention provides a magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink, comprising a magnet array 1, a magnet array bracket 2, a dial 3, a rotating shaft tube 4, an operating handle 5, a sample bracket 6, a device bracket 7 and a base 8;

[0050] like Figure 2As shown, the rotating shaft tube 4 includes a shaft tube outer layer 401 and a shaft tube inner layer 402; the sample bracket 6 includes a vertical bracket 601, an upper bracket 602 and a lower bracket 603; a through hole is opened on the magnet array bracket 2, and a magnet array 1 is arranged inside the magnet array bracket 2, and the magnet array 1 is circumferentially arranged outside the through hole, the magnet array bracket 2 is welded and fixed to the shaft tube inner layer 402, and a dial 3 and an operating handle 5 are sequentially sleeved on the shaft tube inner layer 402; one end of the dial 3 is fitted with the magnet array bracket 2, and the other end of the dial 3 is welded and fixed to the shaft tube outer layer 401, and the shaft tube outer layer 401 is located between the dial 3 and the operating handle 5; the operating handle 5 is fixed to the shaft tube inner layer 402 by screws; by setting the dial 3 and the operating handle 5 in the device, the user can accurately control the rotation angle and position of the magnet array 1, thereby realizing fine adjustment of the ink pattern on the sample, which This adjustability not only improves the flexibility and accuracy of anti-counterfeiting verification, but is also suitable for anti-counterfeiting labels of different types and specifications; the rotation of the magnet array 1 can be easily controlled by operating the handle 5, and the dial 3 provides an intuitive reference, making the operation process simpler and faster, reducing the difficulty of operation and improving work efficiency; a device bracket 7 is fixed to the lower part of the rotating shaft tube 4; it also includes a sample bracket 6 for placing the sample, the upper bracket 602 of the sample bracket 6 passes through the through hole, and the free ends of the lower bracket 603 and the device bracket 7 are fixed on the base 8. When in use, the sample is placed on the upper bracket 602. By setting the magnet array bracket 2 and the rotating shaft tube 4 tightly combined, and the device bracket 7 and the base 8 are firmly supported, the stability and reliability of the entire device during operation are ensured. This structural design helps to reduce vibration and deviation, and ensure the accuracy and consistency of the anti-counterfeiting verification results;

[0051] Preferably, the magnet array 1 is composed of a number of magnets arranged according to the Halbach array rule and distributed in a circle on the magnet array bracket 2; the magnets arranged in the Halbach array rule can significantly improve the uniformity and strength of the magnetic field; the design of the Halbach array enables the magnetic fields between the magnets to enhance each other, reduces leakage magnetic field and magnetic field distortion, thereby improving the quality of the magnetic field, and also improves the efficiency of the magnetic field, so that the device can maintain a high performance during operation; the internal uniform magnetic field also improves the uniformity of the magnetic orientation pattern and ensures the pattern quality; the method of using a permanent magnet array to generate a magnetic field can also save costs and reduce energy consumption; by arranging the magnet array 1 circumferentially, the sample placed on the sample bracket 6 (such as an anti-counterfeiting mark printed with magnetic optically variable ink) can be accurately oriented in the magnetic field, and this orientation can change the arrangement of magnetic particles in the ink, thereby showing a specific pattern or color change under light, providing an efficient and intuitive means for anti-counterfeiting verification;

[0052] Preferably, the magnet array bracket 2 is marked with the S level of the magnetic field in the central area generated by the magnet array 1, which can intuitively indicate the direction of the magnetic field in the central area, which not only helps to more accurately design and adjust the layout of the magnet array to ensure that the magnetic field in the central area reaches the required uniformity; it also helps to identify and reduce the interference of the external magnetic field on the magnetic field in the central area. During the design and use process, corresponding shielding or compensation measures can be taken for the S level direction to improve the stability and reliability of the magnetic field;

[0053] Preferably, the dial 3 marks angles from 0° to 359° on the arc-shaped side, with the topmost point in the vertical direction being 0°, so as to provide 360° full-range magnetic field direction control, thereby ensuring that the magnetic pigments in the magnetic optically variable ink are arranged in a predetermined direction and angle; by changing the angle on the dial, a magnetic pigment arrangement with a complex pattern and angle change can be generated in the magnetic optically variable ink layer, thereby enhancing the visual effect and anti-counterfeiting performance of the anti-counterfeiting label; in combination with different magnetic field directions and angle changes, multiple levels of anti-counterfeiting information can be introduced into the anti-counterfeiting label, and these information are intertwined and mutually verified, and the anti-counterfeiting label can also be made more difficult to be forged or copied;

[0054] Preferably, the magnet array bracket 2, the dial 3, the rotating shaft tube 4, the operating handle 5, the sample bracket 6, the device bracket 7 and the base 8 are all constructed of non-magnetic materials, which can avoid magnetic field interference, ensure the purity and stability of the magnetic field, and accurately control the anti-counterfeiting effect of the magnetic optically variable ink, while extending the life of the equipment, reducing maintenance costs, and ensuring safety and convenience during operation; the overall structure of the device of the present invention clearly serves the ink anti-counterfeiting, is simple and convenient to operate, and also has good portability.

[0055] The structure and working principle of the present invention are further described below:

[0056] The purpose of the present invention is to provide a magnetic orientation device and method for realizing anti-counterfeiting of magnetic optically variable ink. When using the device, a sample (a sample coated with magnetic optically variable ink) is placed on a sample holder 6. The magnet array 1 is composed of a plurality of magnets arranged according to the Halbach array rule, which significantly enhances the magnetic field strength in the central area of ​​the array and makes the magnetic field distribution more uniform, providing a strong and stable magnetic field environment; then the operating handle 5 is rotated to drive the magnet array holder 2 to rotate, and the rotation of the magnet array holder 2 drives the magnet array 1 to rotate, changing the direction of the magnetic field in the central area. The dial 3 is fixed and always indicates the direction of the central magnetic field, providing 360° all-round magnetic field direction control, and can easily change and monitor the magnetic field direction to magnetically orient the magnetic optically variable ink, so that the magnetic pigment flakes in the ink can be arranged in the required direction, greatly improving the anti-counterfeiting ability.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink, characterized in that: The invention comprises a magnet array support (2), wherein a through hole is formed on the magnet array support (2), a magnet array (1) is arranged inside the magnet array support (2), and the magnet array (1) is arranged circumferentially outside the through hole, the magnet array support (2) is connected to a rotating shaft tube (4), the rotating shaft tube (4) comprises a shaft tube outer layer (401) and a shaft tube inner layer (402), and a dial (3) and an operating handle (5) are sequentially sleeved on the shaft tube inner layer (402); the dial (3) One end is fitted with the magnet array bracket (2), and the other end of the scale plate (3) is fixed to the outer layer of the shaft tube (401), and the outer layer of the shaft tube (401) is located between the scale plate (3) and the operating handle (5); a device bracket (7) is fixed to the lower part of the rotating shaft tube (4); and a sample bracket (6) for placing a sample is also included, and one end of the sample bracket (6) for placing the sample passes through the through hole, and the other end of the sample bracket (6) and the free end of the device bracket (7) are both fixed on the base (8).

2. A magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The magnet array (1) is composed of a plurality of magnets, and the magnets are arranged according to the Halbach array rule.

3. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The magnet array support (2) is fixedly connected to the inner layer (402) of the shaft tube.

4. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The magnet array support (2) is marked with the S pole of the magnetic field in the central area generated by the magnet array (1).

5. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The sample support (6) comprises a vertical support (601), an upper support (602) is fixed on the top of the vertical support (601), and a lower support (603) is fixed on the bottom of the vertical support (601). When in use, the sample is placed on the upper support (602).

6. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 5, characterized in that: The upper bracket (602) passes through the through hole, and the lower bracket (603) is fixed on the base (8).

7. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 6, characterized in that: The upper bracket (602) and the lower bracket (603) are parallel to each other.

8. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The magnet array support (2), the scale plate (3), the rotating shaft tube (4), the operating handle (5), the sample support (6), the device support (7) and the base (8) are all made of non-magnetic conductive materials.

9. The magnetic orientation device for realizing anti-counterfeiting of magnetic optically variable ink according to claim 1, characterized in that: The scale plate (3) marks angles from 0° to 359° on the side of the arc, with the topmost point in the vertical direction being 0°.

10. A magnetic orientation method for realizing anti-counterfeiting of magnetic optically variable ink using the device described in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, place the sample on the sample holder (6) and turn the operating handle (5); S2, the operating handle (5) drives the magnet array support (2) to rotate, and the magnet array support (2) drives the magnet array (1) to rotate, thereby changing the direction of the magnetic field in the central area generated by the magnet array (1); S3, the scale plate (3) is fixed, and the magnetic orientation direction of the magnetic optically variable ink can be quantitatively determined by changing and monitoring the direction of the magnetic field in the central area; S4, the magnetic pigment flakes in the sample are aligned along the magnetic orientation direction, producing a specific magnetic orientation pattern.

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