Anti-counterfeiting element and anti-counterfeiting product

Abstract

The application provides a kind of anti-counterfeiting element and anti-counterfeiting product.The anti-counterfeiting element comprises: a substrate;at least two magnetic coding regions, at least two magnetic coding regions are arranged on the same surface or a set of opposite surfaces of the substrate, and the magnetic materials of at least two magnetic coding regions are the same;wherein, when the magnetization device with magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the preset direction, the signals generated by at least two magnetic coding regions are detected by using a magnetic sensor, and the signals generated by at least two magnetic coding regions have opposite pulse orientations.The application solves the problem that the anti-counterfeiting element in the prior art has high concealment and simple manufacturing process, which is difficult to consider simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anti-counterfeiting technology, in particular to an anti-counterfeiting element and an anti-counterfeiting product. BACKGROUND

[0002] At present, magnetic materials are widely used in the field of anti-counterfeiting technology. The prior art proposes an anti-counterfeiting element which arranges magnetic regions and non-magnetic regions on a security thread in an interval manner. A magnetic sensor can detect a magnetic code sequence, and the geometric size of the magnetic regions and the non-magnetic regions can be controlled to form multiple code sequences. The signal intensity of the magnetic regions can be detected by the magnetic sensor. The setting of the code sequence and the remanence level improves the anti-counterfeiting level and the production difficulty. However, the magnetic code detected by the magnetic sensor is single in orientation, which makes the magnetic code easy to be imitated.

[0003] The prior art also provides an anti-counterfeiting element which uses a first kind of magnetic material to form a magnetic code, and the magnetic code includes magnetic regions and non-magnetic regions arranged in an interval manner. A second kind of magnetic material is filled into the non-magnetic regions. A magnetic sensor can detect the magnetic code sequence. Due to the existence of the two kinds of coercivity magnetic materials, two kinds of magnetic materials have opposite orientations after being magnetized twice by using two magnetization devices with opposite orientations. It can be seen that the process of obtaining opposite orientations is complex and difficult. Two kinds of magnetic materials, two magnetic fields and twice magnetization must be used, which brings great difficulty to the production and detection of the magnetic code.

[0004] The prior art also proposes a method for obtaining an asymmetric waveform magnetic code. The signal waveform detected by the magnetic sensor is a half-wave sine wave and an asymmetric sine wave. However, no matter which form is used, the process conditions such as plate making and printing limit the orientation of the half-wave or asymmetric sine wave to the same pulse direction, and the opposite orientation of the half-wave or asymmetric sine wave cannot be obtained. Therefore, the magnetic code also has the disadvantage of being easy to imitate.

[0005] In addition, in the known technology, the pulse orientation of the magnetic code is single, and changes with the external magnetic field strength and the magnetization direction, and is closely related to the type of magnetic material (coercivity property), the magnetic field strength, the magnetization direction, etc. If opposite orientations are to be obtained, at least two kinds of magnetic materials must be used, and the production process is complex and the detection is difficult.

[0006] That is, the anti-counterfeiting element in the prior art has the problem that high concealment and simple manufacturing process cannot be simultaneously achieved. SUMMARY

[0007] The main purpose of the present application is to provide a kind of anti-counterfeiting element and anti-counterfeiting product, to solve the problem of high concealment and simple manufacturing process difficult to consider simultaneously in prior art anti-counterfeiting element.

[0008] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an anti-counterfeiting element is provided, comprising: a substrate; at least two magnetic coding regions, the at least two magnetic coding regions are arranged on the same surface or a set of opposite surfaces of the substrate, and the magnetic materials of the at least two magnetic coding regions are the same; wherein, when a magnetization device with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along a preset direction, a magnetic sensor is used to detect the signals generated by the at least two magnetic coding regions, and the signals generated by the at least two magnetic coding regions have opposite pulse orientations.

[0009] Further, the signal includes a sinusoidal signal, and the sinusoidal signals of the at least two magnetic coding regions are one of center-symmetric or axis-symmetric.

[0010] Further, the preset direction includes a first magnetization direction and a second magnetization direction, the arrangement direction of the two magnetic coding regions is parallel to the first magnetization direction, and the arrangement direction of the two magnetic coding regions is perpendicular to the second magnetization direction.

[0011] Further, when the magnetization device with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the first magnetization direction, the cross section of the two magnetic coding regions along the first magnetization direction is in a vertical mirror image relationship; and / or the cross section of the at least one magnetic coding region along the first magnetization direction includes one or more sub-cross sections, when the sub-cross sections are multiple, the multiple sub-cross sections are symmetrically arranged, and the sub-cross section includes one of trapezoidal, triangular and L-shaped; and / or the top view of the at least one magnetic coding region is a square or a rectangle.

[0012] Further, when the magnetization device with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the second magnetization direction, the top view of the two magnetic coding regions is in a vertical mirror image relationship; and / or the top view of the at least one magnetic coding region includes one or more sub-top views, when the sub-top views are multiple, the multiple sub-top views are symmetrically arranged, and the sub-top view includes one of trapezoidal, triangular and L-shaped; and / or the cross section of the at least one magnetic coding region along the first magnetization direction is a square or a rectangle.

[0013] Further, the thickness of the at least two magnetic coding regions is the same.

[0014] Further, the substrate includes one of paper and film.

[0015] Further, the length of each magnetic coding region is greater than or equal to 2.0 mm and less than or equal to 7.0 mm; and / or the width of each magnetic coding region is greater than or equal to 0.5 mm and less than or equal to 8 mm.

[0016] According to another aspect of the present application, there is provided an anti-counterfeiting product comprising the anti-counterfeiting element described above.

[0017] Further, the anti-counterfeiting element is arranged in the anti-counterfeiting product in a windowed or fully embedded manner.

[0018] Further, the anti-counterfeiting product comprises one of a banknote, a bank bill, a ticket, an identification card, a document, and a credit card.

[0019] According to the technical scheme of the present application, the anti-counterfeiting element comprises a substrate and at least two magnetic coding regions, the at least two magnetic coding regions are arranged on the same surface or a set of opposite surfaces of the substrate, and the magnetic materials of the at least two magnetic coding regions are the same; wherein, when a magnetization device with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along a preset direction, a magnetic sensor is used to detect the signals generated by the at least two magnetic coding regions, and the signals generated by the at least two magnetic coding regions have opposite pulse orientations.

[0020] By arranging the substrate, the substrate provides a setting position for the magnetic coding regions, improves the use reliability of the magnetic coding regions, and ensures that the anti-counterfeiting element can be normally used. The signals generated by the at least two magnetic coding regions have opposite pulse orientations, and the signals with opposite orientations generated by the at least two magnetic coding regions exist inherently, rather than being caused by the movement direction of the magnetization device or the magnetic field strength of the magnetization device, so that the defect that the magnetic coding regions are easy to counterfeit is overcome. Meanwhile, the magnetic materials of the at least two magnetic coding regions are the same, so that the production difficulty of the magnetic coding regions is reduced, the complex and cumbersome production process is avoided, and the cost is reduced. In addition, the anti-counterfeiting element of the present application has the advantages of simple manufacturing process, high information concealment of the magnetic coding regions, and easy detection and identification, greatly improves the anti-counterfeiting level, and further greatly improves the anti-counterfeiting property of the anti-counterfeiting element. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the present application. The use of the same reference numerals in different drawings indicates similar or identical components.

[0022] Figure 1 Fig. 1 shows a schematic diagram of an anti-counterfeiting element of an embodiment of the present application and a signal diagram detected by a magnetic sensor;

[0023] Figure 2Fig. 2 shows a schematic diagram of a security element according to an embodiment of the present application and a signal diagram detected by a magnetic sensor;

[0024] Figure 3 Fig. 3 shows a schematic diagram of a security element according to an embodiment of the present application and a signal diagram detected by a magnetic sensor;

[0025] Figure 4 Fig. 4 shows a schematic diagram of a security element according to an embodiment of the present application and a signal diagram detected by a magnetic sensor;

[0026] Figure 5 Fig. 5 shows a schematic diagram of a security element according to an embodiment of the present application and a signal diagram detected by a magnetic sensor;

[0027] Figure 6 Fig. 6 shows a schematic diagram of a security element according to an embodiment of the present application and a signal diagram detected by a magnetic sensor.

[0028] In the above drawings, the following reference signs apply:

[0029] 10, magnetization device; 20, base material; 30, first magnetic coding region; 40, second magnetic coding region; 50, first magnetization direction; 60, second magnetization direction; 70, sub cross-sectional view; 80, sub top view. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0032] In the present application, unless otherwise specified, the orientation words such as "upper", "lower", "top", "bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves; similarly, for the convenience of understanding and description, "inner" and "outer" refer to the inner and outer relative to the contour of the components themselves, but the above orientation words are not used to limit the present application.

[0033] In order to solve the problem that the security element in the prior art cannot simultaneously consider high concealment and simple manufacturing process, the present application provides a security element and a security product.

[0034] As Figures 1 to 6As shown, the anti-counterfeiting element comprises a substrate 20 and at least two magnetic coding regions, the at least two magnetic coding regions are arranged on the same surface of the substrate 20, and the magnetic materials of the at least two magnetic coding regions are the same; wherein, when the anti-counterfeiting element is magnetized by the magnetizing device 10 with a magnetic strength greater than the coercive field strength of the magnetic material along a preset direction, the signals generated by the at least two magnetic coding regions are detected by a magnetic sensor, and the signals generated by the at least two magnetic coding regions have opposite pulse orientations.

[0035] By arranging the substrate 20, the substrate 20 provides a setting position for the magnetic coding regions, improves the use reliability of the magnetic coding regions, and ensures that the anti-counterfeiting element can be normally used. The signals generated by the at least two magnetic coding regions have opposite pulse orientations, and the signals generated by the at least two magnetic coding regions have opposite orientations, which are inherently present, rather than caused by the movement direction of the magnetizing device 10 or the magnetic field strength of the magnetizing device 10, so that the defect that the magnetic coding regions are easy to counterfeit is overcome. Meanwhile, the magnetic materials of the at least two magnetic coding regions are the same, so that the production difficulty of the magnetic coding regions is reduced, the complex and complicated production process is avoided, and the cost is reduced. In addition, the anti-counterfeiting element of the present application has the advantages of simple manufacturing process, high information concealment of the magnetic coding regions, and easy detection and identification, greatly improves the anti-counterfeiting level, and further greatly improves the anti-counterfeiting performance of the anti-counterfeiting element.

[0036] It should be noted that the magnetic field strength of the magnetizing device 10 is greater than the coercive field strength of the magnetic material of the magnetic coding region.

[0037] It should be noted that in the specific embodiments not shown in the figure, the at least two magnetic coding regions can also be arranged on a set of opposite surfaces of the substrate 20 respectively, and the projections of the two magnetic coding regions on the substrate 20 are spaced.

[0038] It should be noted that the magnetic coding regions of the anti-counterfeiting element of the present application only use one kind of magnetic material to realize the signals with opposite orientations which are not affected by the magnetizing movement direction of the magnetizing device 10 or the magnetic field strength change of the magnetizing device 10 along a preset direction, where the orientation refers to the phase of the pulse caused by the change of magnetic induction electromotive force, and the at least two magnetic coding regions include a first magnetic coding region 30 and a second magnetic coding region 40. The orientation contrast formed by the first magnetic coding region 30 and the second magnetic coding region 40 is inherently present, rather than caused by the movement change of the magnetizing device 10 or the magnetic field strength change of the magnetizing device 10. To improve the anti-counterfeiting performance of the anti-counterfeiting element, while ensuring that the anti-counterfeiting element has a simple manufacturing process, high magnetic code information concealment, and easy machine identification, the anti-counterfeiting element greatly improves the anti-counterfeiting performance of the valuable securities. The magnetic coding regions can meet the function of carrying more coding information, thereby providing a more powerful, safer and more concealed anti-counterfeiting element.

[0039] Specifically, the signal includes a sine waveform signal of at least half a period, and the sine waveform signals of the at least two magnetic coding regions are one of center-symmetrical or axis-symmetrical.

[0040] Specifically, the preset direction includes a first magnetization direction 50 and a second magnetization direction 60, and the arrangement direction of the two magnetic coding regions is parallel to the first magnetization direction 50, and the arrangement direction of the two magnetic coding regions is perpendicular to the second magnetization direction 60. That is, after the magnetization device 10 with a magnetic strength greater than that of the magnetic material moves along the first magnetization direction 50, the magnetic sensor can detect signals with opposite pulse orientations generated by the at least two magnetic coding regions; after the magnetization device 10 with a magnetic strength greater than that of the magnetic material moves along the second magnetization direction 60, the magnetic sensor can detect signals with opposite pulse orientations generated by the at least two magnetic coding regions.

[0041] As shown in FIG. 1, Figures 1 to 3 When the magnetization device 10 with a magnetic strength greater than that of the magnetic material is used to magnetize the anti-counterfeiting element along the first magnetization direction 50, the thickness of the at least one magnetic coding region changes at a certain angle so that the cross section of the magnetic coding region along the first magnetization direction 50 includes one or more sub-cross section graphs 70, and the magnetic coding region with one or more sub-cross section graphs 70 as the cross section is detected by the magnetic sensor to obtain a sine waveform signal. The cross sections of the two magnetic coding regions along the first magnetization direction 50 are vertically mirror images. When the sub-cross section graph 70 is multiple, the multiple sub-cross section graphs 70 are symmetrically arranged, and the sub-cross section graph 70 includes one of a trapezoidal shape, a triangular shape, and an L-shaped. The top view of the at least one magnetic coding region is a square or a rectangle. It should be noted that in the present application, the sub-cross section graph 70 can be one or two. When the sub-cross section graph 70 is two, the two sub-cross section graphs 70 are axis-symmetrically arranged, and the symmetry axis of the two sub-cross section graphs 70 is perpendicular to the first magnetization direction 50.

[0042] Figure 1 FIG. 1 is a schematic diagram of an anti-counterfeiting element of an embodiment one of the present application and a signal graph detected by a magnetic sensor, Figure 1 from top to bottom in FIG. 1 are a structural schematic diagram of the anti-counterfeiting element, a top view of the anti-counterfeiting element, a cross section of the anti-counterfeiting element along the arrangement direction, and a signal waveform graph detected by a magnetic sensor. The embodiment one provides an anti-counterfeiting element, which includes a substrate 20 and a first magnetic coding region 30 and a second magnetic coding region 40 with a magnetic material arranged on the substrate 20. After the magnetization device 10 moves along the first magnetization direction 50, the magnetic sensor can detect signals with opposite pulse orientations generated by the two magnetic coding regions.

[0043] like Figure 1 As shown, from a top view, the first magnetic coding region 30 and the second magnetic coding region 40 are regular rectangles. Of course, in embodiments not shown in the figure, the top view can also be a square, depending on the actual situation. The top view is no different from a conventional magnetic region, with no difference in shape, which further enhances the concealment of the first magnetic coding region 30 and the second magnetic coding region 40. Furthermore, there are tiny gaps within the first magnetic coding region 30 and the second magnetic coding region 40. These gaps are blank, non-magnetic areas or areas with low remanent magnetization. The remanent magnetization of the gap areas is lower than that of the first magnetic coding region 30 and the second magnetic coding region 40. These gaps can be detected by the magnetic sensor but cannot be detected by the human eye. The first magnetic coding region 30 and the second magnetic coding region 40 appear as continuous magnetic coding regions without gaps to the human eye.

[0044] It should be noted that when there are two sub-section diagrams 70, the position between the two sub-section diagrams 70 corresponds to the interval area of ​​the magnetic coding area.

[0045] like Figure 1 As shown, the cross-sectional view of the anti-counterfeiting elements along the arrangement direction reveals that the arrangement direction is the first magnetization direction 50, which is the direction from left to right in the diagram. The cross-sectional views of the first magnetic coding area 30 and the second magnetic coding area 40 are mutually perpendicular mirror images, achieved through a special plate-making process. Specifically, the cross-sectional view of the first magnetic coding area 30 includes two symmetrically arranged sub-cross-sectional views 70, each forming a triangle; the cross-sectional view of the second magnetic coding area 40 also includes two symmetrically arranged sub-cross-sectional views 70, each forming a triangle.

[0046] like Figure 1 As shown in the cross-sectional view of the anti-counterfeiting element along the arrangement direction, at the leftmost position of the first magnetic coding area 30 of the anti-counterfeiting element, the magnetic flux changes from zero to one. Using a magnetic sensor along the first magnetization direction 50 from left to right, the magnetic flux gradually decreases and then gradually increases. At the rightmost position of the first magnetic coding area 30, the magnetic flux changes from one to zero. From the signal waveform obtained by the magnetic sensor, the leftmost and rightmost positions of the first magnetic coding area 30 can form magnetic induction electromotive force change curves with opposite phases. The amplitude of the magnetic induction electromotive force corresponding to the leftmost position of the first magnetic coding area 30 is -Y, and the amplitude of the magnetic induction electromotive force corresponding to the rightmost position of the first magnetic coding area 30 is +Y, where Y is greater than 0.

[0047] like Figure 1As shown, from the cross-sectional view of the anti-counterfeiting element along the arrangement direction, from left to right, the second magnetic coding area 40 of the anti-counterfeiting element is composed of a left triangular pattern, a blank interval or a low magnetic area, and a right triangular pattern. At the leftmost side of the left triangular pattern, the magnetic flux gradually increases from left to right along the first magnetization direction 50 using the magnetic sensor, and then the magnetic flux changes from yes to no. The amplitude of the magnetic induction electromotive force corresponding to the rightmost side of the left triangular pattern of the second magnetic coding area 40 is +Y, and then the magnetic flux changes from no to yes and gradually decreases. At the leftmost side of the right triangular pattern of the second magnetic coding area 40, the amplitude of the magnetic induction electromotive force is -Y. As shown in the signal waveform diagram detected by the magnetic sensor, the change curve of the magnetic induction electromotive force with opposite phases can be formed in the second magnetic coding area 40, wherein Y is greater than 0.

[0048] Finally, the first magnetic coding area 30 and the second magnetic coding area 40 appear cross-sectional views that are perpendicular to each other and mirror images. The waveform signals with opposite orientations can be obtained by the magnetic sensor detection, and the waveform is not affected by the change of the magnetization direction of the magnetization device 10 and the change of the magnetic field strength. It is irrelevant to the coercive force property of the magnetic material of the magnetic coding area, the type of the magnetic material, and the like. In addition, as shown in the signal waveform diagram detected by the magnetic sensor, the change curve of the magnetic induction electromotive force corresponding to the wave band of the first magnetic coding area 30 is rising, and the change curve of the magnetic induction electromotive force corresponding to the wave band of the second magnetic coding area 40 is falling. It can also be proved that the signals generated by the first magnetic coding area 30 and the second magnetic coding area 40 have opposite orientations.

[0049] Figure 2 is a schematic diagram of the anti-counterfeiting element of embodiment two and a signal diagram detected by a magnetic sensor, Figure 2 from top to bottom in the figure are a structural schematic diagram of the anti-counterfeiting element, a top view of the anti-counterfeiting element, a cross-sectional view of the anti-counterfeiting element along the arrangement direction, and a signal waveform diagram detected by a magnetic sensor. Embodiment two provides an anti-counterfeiting element, which comprises a substrate 20 and a first magnetic coding area 30 and a second magnetic coding area 40 with a kind of magnetic material arranged on the substrate 20. After moving along the first magnetization direction 50 using the magnetization device 10, the signals with opposite pulse orientations generated by the two magnetic coding areas can be detected using the magnetic sensor.

[0050] As Figure 2As shown in the figure, from the top view, the top view of the first magnetic coding area 30 and the second magnetic coding area 40 is a regular rectangle, of course, in the embodiment not shown in the figure, the top view can also be a square, which can be set according to the actual situation. The top view is not different from the conventional magnetic area, and there is no difference in shape, which further enhances the concealment of the first magnetic coding area 30 and the second magnetic coding area 40.

[0051] As shown in the figure, Figure 2 As shown in the figure, from the cross-sectional view of the anti-fake element along the arrangement direction, the cross-sectional view of the first magnetic coding area 30 and the second magnetic coding area 40 is a triangular shape in a mutually perpendicular mirror image relationship, which is realized by a special plate making process. From left to right, at the leftmost side of the first magnetic coding area 30 of the anti-fake element, the magnetic flux changes from nothing to something, and the magnetic sensor is moved from left to right, and the magnetic flux gradually decreases, wherein the amplitude of the magnetic induction electromotive force formed at the leftmost side of the first magnetic coding area 30 is -Y, and the amplitude of the magnetic induction electromotive force formed at the rightmost side of the first magnetic coding area 30 is 0, wherein Y>0. From left to right, at the rightmost side of the second magnetic coding area 40 of the anti-fake element, the magnetic flux changes from something to nothing, and the magnetic sensor is moved from left to right, wherein the amplitude of the magnetic induction electromotive force formed at the leftmost side of the second magnetic coding area 40 is 0, and the amplitude of the magnetic induction electromotive force formed at the rightmost side of the second magnetic coding area 40 is +Y, wherein Y>0.

[0052] Figure 3 is a schematic diagram of the anti-fake element of embodiment three of the present application and a signal diagram detected by a magnetic sensor, Figure 3 from top to bottom in the figure are respectively a structural schematic diagram of the anti-fake element, a top view of the anti-fake element, a cross-sectional view of the anti-fake element along the arrangement direction, and a signal waveform diagram detected by a magnetic sensor. Embodiment three provides an anti-fake element, which comprises a substrate 20 and a first magnetic coding area 30 and a second magnetic coding area 40 with a magnetic material arranged on the substrate 20, and after moving along the first magnetization direction 50 by using a magnetization device 10, the two magnetic coding areas can generate signals with opposite pulse orientations which can be detected by using a magnetic sensor.

[0053] As shown in the figure, Figure 3 As shown in the figure, from the top view, the top view of the first magnetic coding area 30 and the second magnetic coding area 40 is a regular rectangle, of course, in the embodiment not shown in the figure, the top view can also be a square, which can be set according to the actual situation. The top view is not different from the conventional magnetic area, and there is no difference in shape, which further enhances the concealment of the first magnetic coding area 30 and the second magnetic coding area 40.

[0054] As shown in Figure 3 viewed from the cross section of the anti-counterfeiting element along the arrangement direction, the cross section of the first magnetic coding area 30 and the second magnetic coding area 40 is a trapezoidal shape in a mutual perpendicular mirror image relationship, which is realized by a special plate making process. Viewed from left to right, at the leftmost side of the first magnetic coding area 30 of the anti-counterfeiting element, the magnetic flux changes from nothing to something, and the magnetic sensor is moved from left to right, and the magnetic flux gradually decreases, wherein the amplitude of the magnetic induction electromotive force formed at the leftmost side of the first magnetic coding area 30 is -Y, and the amplitude of the magnetic induction electromotive force formed at the rightmost side of the first magnetic coding area 30 is +A, wherein Y>0, A>0, and A<Y. Viewed from left to right, at the rightmost side of the second magnetic coding area 40 of the anti-counterfeiting element, the magnetic flux changes from something to nothing, and the magnetic sensor is moved from left to right, wherein the amplitude of the magnetic induction electromotive force formed at the leftmost side of the second magnetic coding area 40 is -A, and the amplitude of the magnetic induction electromotive force formed at the rightmost side of the second magnetic coding area 40 is +Y, wherein Y>0, A>0, and A<Y.

[0055] As shown in Figures 4 to 6 When the magnetization device 10 with a magnetic intensity greater than that of the magnetic material is used to magnetize the anti-counterfeiting element along the second magnetization direction 60, at least one magnetic coding area changes in thickness at a certain angle to form one or more sub-top views 80 in the top view of the magnetic coding area, so that the top view is a sine waveform of the signal detected by the magnetic sensor. The top view of the two magnetic coding areas is in a perpendicular mirror image relationship, the top view of the at least one magnetic coding area includes one or more sub-top views 80, when the sub-top view 80 is multiple, the multiple sub-top views 80 are arranged in axial symmetry, and the sub-top view 80 includes one of trapezoidal, triangular, and L-shaped; the cross section of the at least one magnetic coding area along the first magnetization direction 50 is a square or a rectangle. It should be noted that in the present application, the sub-top view 80 can be one or two, when the sub-top view 80 is two, the two sub-top views 80 are arranged in axial symmetry, and the symmetry axis of the two sub-top views 80 is perpendicular to the second magnetization direction 60.

[0056] Figure 4 is a schematic diagram of the anti-counterfeiting element of Embodiment Four of the present application and a signal diagram detected by a magnetic sensor, Figure 4From top to bottom, the diagrams show a structural schematic of the anti-counterfeiting element, a top view of the anti-counterfeiting element, a cross-sectional view of the anti-counterfeiting element along its arrangement direction, and a signal waveform obtained by a magnetic sensor. Embodiment 4 provides an anti-counterfeiting element comprising a substrate 20 and a first magnetic coding region 30 and a second magnetic coding region 40, each made of a magnetic material, spaced apart on the substrate 20. After the magnetizing device 10 moves along a second magnetization direction 60, a magnetic sensor can detect signals with opposite pulse orientations generated by the two magnetic coding regions.

[0057] like Figure 4 As shown, from the cross-sectional view along the arrangement direction of the anti-counterfeiting elements, the cross-sectional view of the first magnetic coding area 30 and the second magnetic coding area 40 is a regular rectangle. Of course, in the embodiment not shown in the figure, the cross-sectional view can also be a square, which can be set according to the actual situation. The cross-sectional view is no different from that of a conventional magnetic area, and there is no difference in shape, which further enhances the concealment of the first magnetic coding area 30 and the second magnetic coding area 40.

[0058] like Figure 4 As shown, from a top view, the top views of the first magnetic coding area 30 and the second magnetic coding area 40 are mutually perpendicular mirror images, achieved through a special plate-making process. The top view of the first magnetic coding area 30 includes two axially symmetrical sub-top views 80, each sub-top view 80 being triangular in shape. The top view of the second magnetic coding area 40 also includes two axially symmetrical sub-top views 80, each sub-top view 80 being triangular in shape. Viewed from top to bottom, at the uppermost side of the first magnetic coding area 30 of the anti-counterfeiting element, the magnetic flux changes from zero to a certain value. A magnetic sensor moves from top to bottom, where the amplitude of the magnetic induced electromotive force generated at the uppermost side of the first magnetic coding area 30 is -B, and the amplitude of the magnetic induced electromotive force generated at the lowermost side of the first magnetic coding area 30 is +B, where B > 0. Viewed from top to bottom, the magnetic sensor moves from top to bottom. The amplitude of the magnetic induction electromotive force corresponding to the bottom of the upper triangular shape of the second magnetic coding area 40 is +B. Then the magnetic flux changes from zero to one and then gradually decreases. The amplitude of the magnetic induction electromotive force corresponding to the top of the lower triangular shape of the second magnetic coding area 40 is -B, where B>0.

[0059] Figure 5 This is a schematic diagram of the anti-counterfeiting element according to Embodiment 5 of the present invention and a signal diagram detected by the magnetic sensor. Figure 5From top to bottom, the diagrams show a structural schematic of the anti-counterfeiting element, a top view of the anti-counterfeiting element, a cross-sectional view of the anti-counterfeiting element along its arrangement direction, and a signal waveform obtained by a magnetic sensor. Embodiment 5 provides an anti-counterfeiting element comprising a substrate 20 and a first magnetic coding region 30 and a second magnetic coding region 40, each made of a magnetic material, spaced apart on the substrate 20. After the magnetizing device 10 moves along a second magnetization direction 60, a magnetic sensor can detect signals with opposite pulse orientations generated by the two magnetic coding regions.

[0060] like Figure 5 As shown, from the cross-sectional view along the arrangement direction of the anti-counterfeiting elements, the cross-sectional view of the first magnetic coding area 30 and the second magnetic coding area 40 is a regular rectangle. Of course, in the embodiment not shown in the figure, the cross-sectional view can also be a square, which can be set according to the actual situation. The cross-sectional view is no different from that of a conventional magnetic area, and there is no difference in shape, which further enhances the concealment of the first magnetic coding area 30 and the second magnetic coding area 40.

[0061] like Figure 5 As shown in the top view, the first magnetic coding area 30 and the second magnetic coding area 40 are triangular shapes that are perpendicular mirror images of each other, achieved through a special plate-making process. Viewed from top to bottom, at the top of the first magnetic coding area 30 of the anti-counterfeiting element, the magnetic flux changes from zero to a certain value. A magnetic sensor moves from top to bottom, resulting in a magnetic induction electromotive force (EMF) with an amplitude of 0 at the top and +B at the bottom of the first magnetic coding area 30, where B > 0. Similarly, a magnetic sensor moves from top to bottom, resulting in a magnetic induction EMF with an amplitude of 0 at the top and -B at the bottom of the second magnetic coding area 40, where B > 0.

[0062] Figure 6 This is a schematic diagram of the anti-counterfeiting element according to Embodiment Six of the present invention, and a signal diagram detected by a magnetic sensor. Figure 6 From top to bottom, the diagrams show a structural schematic of the anti-counterfeiting element, a top view of the anti-counterfeiting element, a cross-sectional view of the anti-counterfeiting element along its arrangement direction, and a signal waveform obtained by a magnetic sensor. Embodiment Six provides an anti-counterfeiting element comprising a substrate 20 and a first magnetic coding region 30 and a second magnetic coding region 40, each made of a magnetic material, spaced apart on the substrate 20. After the magnetizing device 10 moves along a second magnetization direction 60, a magnetic sensor can detect signals with opposite pulse orientations generated by the two magnetic coding regions.

[0063] As shown in Figure 6 view, the cross-sectional view of the first magnetic coding region 30 and the second magnetic coding region 40 is a regular rectangle, of course, in the embodiment not shown in the figure, the cross-sectional view can also be a square, which can be set according to actual conditions. The cross-sectional view is not different from the conventional magnetic region, and there is no difference in shape, which further enhances the concealment of the first magnetic coding region 30 and the second magnetic coding region 40.

[0064] As shown in Figure 6 view, the cross-sectional view of the first magnetic coding region 30 and the second magnetic coding region 40 is a regular rectangle, of course, in the embodiment not shown in the figure, the cross-sectional view can also be a square, which can be set according to actual conditions. The cross-sectional view is not different from the conventional magnetic region, and there is no difference in shape, which further enhances the concealment of the first magnetic coding region 30 and the second magnetic coding region 40.

[0065] Specifically, the first magnetic coding region 30 and the second magnetic coding region 40 can be coated on the substrate 20 by printing plate and printing process, and the thickness of the two magnetic coding regions is the same. The length of each magnetic coding region is greater than or equal to 2.0 mm and less than or equal to 7.0 mm, preferably, the length of each magnetic coding region is greater than or equal to 1.5 mm and less than or equal to 7.0 mm. The width of the magnetic coding region is greater than or equal to 0.5 mm and less than or equal to 8 mm.

[0066] Specifically, the substrate 20 includes one of paper and film, which can be selected according to actual needs.

[0067] The application also provides an anti-fake product including the above anti-fake element. The anti-fake element is arranged in the anti-fake product in a windowed or fully buried manner. Specifically, the anti-fake product includes one of banknotes, bank bills, tickets, certificates, documents, and credit cards. The anti-fake product with the above anti-fake element has the advantages of high concealment, high security, strong anti-fake performance, and simple manufacturing process.

[0068] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0069] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, as the scope of the exemplary embodiments of this application is limited only by the appended claims. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Also, unless otherwise indicated herein, the materials described herein can be used in a variety of applications.

[0070] It should be noted that the terms "first", "second", and the like, as used herein, are intended to modify any one of the identified objects, but do not imply a specific order or sequence, unless otherwise specifically indicated. It is to be understood that the use of the term "about" in describing the embodiments of this application is intended to convey that the description is an approximation, and that the embodiments of this application are not limited to the precise values, ranges, or parameters described, unless otherwise specifically indicated.

[0071] The preferred embodiments of the application are described above in detail. The application is not limited to the embodiments described above, but can vary and be modified, as can occur to those skilled in the art. Any equivalent realizations, modifications, and improvements made without departing from the spirit and principles of the application shall fall within the scope of protection of the application.

Claims

1. An anti-counterfeiting element, characterized in that, The anti-counterfeiting element comprises: a substrate (20); at least two magnetic coding regions, the at least two magnetic coding regions being arranged on the same surface or a set of opposite surfaces of the substrate (20) at intervals, and the magnetic materials of the at least two magnetic coding regions being the same; wherein, when a magnetization device (10) with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along a preset direction, a magnetic sensor is used to detect signals generated by the at least two magnetic coding regions, and the signals generated by the at least two magnetic coding regions have opposite pulse orientations; the preset direction comprises a first magnetization direction (50) and a second magnetization direction (60), the arrangement direction of the two magnetic coding regions is parallel to the first magnetization direction (50), and the arrangement direction of the two magnetic coding regions is perpendicular to the second magnetization direction (60); when the magnetization device (10) with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the first magnetization direction (50), the cross section of the two magnetic coding regions along the first magnetization direction (50) is in a vertical mirror image relationship; or when the magnetization device (10) with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the second magnetization direction (60), the top view of the two magnetic coding regions is in a vertical mirror image relationship.

2. The security element according to claim 1, characterized in that The signals comprise sinusoidal signals, and the sinusoidal signals of the at least two magnetic coding regions are one of center-symmetric or axis-symmetric.

3. The security element according to claim 1, characterized in that When the magnetization device (10) with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the first magnetization direction (50), the cross section of at least one of the magnetic coding regions along the first magnetization direction (50) comprises one or more sub-cross section views (70), when the sub-cross section view (70) is multiple, the multiple sub-cross section views (70) are arranged symmetrically, and the sub-cross section view (70) comprises one of a trapezoidal shape, a triangular shape, and an L-shaped; and / or the top view of at least one of the magnetic coding regions is a square or a rectangle.

4. The security element according to claim 1, characterized in that When the magnetization device (10) with a magnetic strength greater than the magnetic material is used to magnetize the anti-counterfeiting element along the second magnetization direction (60), the top view of at least one of the magnetic coding regions comprises one or more sub-top views (80), when the sub-top view (80) is multiple, the multiple sub-top views (80) are arranged symmetrically, and the sub-top view (80) comprises one of a trapezoidal shape, a triangular shape, and an L-shaped; and / or the cross section of at least one of the magnetic coding regions along the first magnetization direction (50) is a square or a rectangle.

5. The security element according to claim 1, characterized in that The thicknesses of the at least two magnetic coding regions are the same.

6. The security element according to claim 1, characterized in that The substrate (20) comprises one of paper and a film.

7. The anti-counterfeiting element according to claim 1, wherein the length of each of the magnetic coding regions is greater than or equal to 2.0 mm and less than or equal to 7.0 mm; and / or the width of each of the magnetic coding regions is greater than or equal to 0.5 mm and less than or equal to 8 mm.

8. An anti-counterfeiting product characterized in that, An anti-counterfeiting element according to any one of claims 1 to 7 is provided.

9. The security product according to claim 8, characterized in that The anti-fake element is arranged in the anti-fake product in a way of windowing or full embedding.

10. The security product according to claim 8, characterized in that The anti-fake product includes one of banknotes, bank bills, tickets, certificates, documents and credit cards.

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