CN113822401A - Magnetic anti-counterfeiting element and magnetic anti-counterfeiting product - Google Patents
Magnetic anti-counterfeiting element and magnetic anti-counterfeiting product Download PDFInfo
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- CN113822401A CN113822401A CN202110888037.2A CN202110888037A CN113822401A CN 113822401 A CN113822401 A CN 113822401A CN 202110888037 A CN202110888037 A CN 202110888037A CN 113822401 A CN113822401 A CN 113822401A
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- 239000006249 magnetic particle Substances 0.000 claims abstract description 46
- 239000000696 magnetic material Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims description 30
- 238000007639 printing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 4
- 229910002771 BaFe12O19 Inorganic materials 0.000 claims description 3
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical class [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 40
- 230000005415 magnetization Effects 0.000 abstract description 21
- 239000000976 ink Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
- G06K19/06196—Constructional details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06018—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding
- G06K19/06028—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking one-dimensional coding using bar codes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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Abstract
The invention provides a magnetic anti-counterfeiting element and a magnetic anti-counterfeiting product, belongs to the technical field of magnetic anti-counterfeiting, and relates to a magnetic anti-counterfeiting element for protecting valuable documents and the like, the magnetic security element comprises a first magnetic region and a second magnetic region, the first magnetic region being composed of a high coercivity magnetic material having a magnetic anisotropy, the second magnetic region being composed of a low coercivity magnetic material having a magnetic anisotropy, the magnetic materials in the first and second magnetic regions having magnetic particles, wherein the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged to form anisotropic fields in different directions, under different pre-magnetization modes, the magnetic anti-counterfeiting element has obvious detection signal characteristics, cannot be realized by the conventional magnetic anti-counterfeiting element at present, and has high anti-counterfeiting safety.
Description
Technical Field
The invention relates to the technical field of magnetic anti-counterfeiting and value documents protected by using magnetic anti-counterfeiting elements, in particular to a magnetic anti-counterfeiting element and a magnetic anti-counterfeiting product.
Background
The application of magnetic security elements, such as security strips or security threads, etc., in value documents is an increasingly employed means of security. The magnetic anti-counterfeiting element is used for checking the authenticity of the valuable documents and realizing the rapid clearing of the valuable documents. The conventional magnetic anti-counterfeiting element directly prints magnetic ink on a substrate, and then detects the existence or magnitude of residual magnetism by using a magnetic sensor, which is described in patents GB1127043, EP0310707, and the like. The traditional magnetic anti-counterfeiting element is improved by patents such as EP0428779, EP2229286, US20100219245, CN102971748 and the like, a magnetic area is printed on a base material by adopting two magnetic materials of high coercive force and low coercive force, and a magnetic sensor can detect the coercive force characteristic of the magnetic material except the residual magnetic characteristic, so that the information bearing capacity of the magnetic anti-counterfeiting element is improved, and the anti-counterfeiting performance of the magnetic anti-counterfeiting element is improved. However, with the continuous development of scientific technology, magnetic materials with only high and low coercivity properties are more and more easily available, so that a magnetic anti-counterfeiting element printed by only using two kinds of coercivity magnetic inks is gradually at risk of being counterfeited.
Disclosure of Invention
The invention aims to provide a magnetic anti-counterfeiting element and a magnetic anti-counterfeiting product which have the detection characteristics of remanence, high and low coercive force and magnetic anisotropy.
In order to achieve the above object, an embodiment of the present invention provides a magnetic security element, including:
a substrate;
the magnetic material in the first magnetic region and the second magnetic region is provided with magnetic particles, and the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged.
Optionally, the regular arrangement rule of the main magnetic particles in the first magnetic region or the second magnetic region is obtained by drying and molding the magnetic ink magnetized by the magnetic field in the printing process.
Optionally, the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged along a straight line direction.
Optionally, the alignment direction of the main magnetic particles in the first magnetic region is perpendicular to the alignment direction of the main magnetic particles in the second magnetic region.
Optionally, a plane formed by a straight line in the arrangement direction of the main magnetic particles in the first magnetic region and a straight line in the arrangement direction of the main magnetic particles in the second magnetic region is parallel to the surface of the substrate.
Optionally, the arrangement direction of the main magnetic particles in the first magnetic region and the arrangement direction of the main magnetic particles in the second magnetic region are not parallel to the length direction of the substrate.
Optionally, the alignment direction of the main magnetic particles in the first magnetic region or the second magnetic region is perpendicular to the surface of the substrate.
Optionally, the arrangement direction of the main magnetic particles in the first magnetic region is perpendicular to the surface of the substrate, and the arrangement direction of the main magnetic particles in the second magnetic region is parallel to the length direction of the substrate.
Optionally, the coercivity of the magnetic material in the first magnetic region ranges from 1000Oe to 3500 Oe.
Optionally, the magnetic material in the first magnetic region is BaFe12O19；
The morphology structure of the magnetic material in the first magnetic region is a hexagonal structure.
Optionally, the coercivity of the magnetic material in the second magnetic region ranges from 200Oe to 700 Oe.
Optionally, the magnetic material in the second magnetic region is γ -Fe2O3Or CrO2Or a doped modified barium ferrite;
the morphology structure of the magnetic material in the second magnetic region is a needle-like structure or a sheet-like structure.
Optionally, the first magnetic region and the second magnetic region are applied to the substrate surface in the form of alphanumeric characters or patterns.
Optionally, the object protected by the magnetic anti-counterfeiting element is anti-counterfeiting paper, anti-counterfeiting file or product package.
The embodiment of the invention provides a magnetic anti-counterfeiting product, which comprises the magnetic anti-counterfeiting element.
Optionally, the magnetic security product comprises a document of value or value.
Because the magnetic anti-counterfeiting element adopts the magnetic material with low coercivity and high coercivity and the magnetic area is printed by the magnetic anti-counterfeiting element with magnetic anisotropy, and the magnetic area is not printed by the magnetic material with pure high coercivity and low coercivity in the prior art, the magnetic material with high coercivity and low coercivity and magnetic anisotropy is more difficult to obtain, and the anti-counterfeiting performance is higher. More importantly, the magnetic material particles in the magnetic anti-counterfeiting element are regularly arranged. Specifically, the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged to form anisotropic fields in different directions, and under different pre-magnetization modes, the magnetic anti-counterfeiting element has obvious detection signal characteristics, rather than random arrangement in the prior art, and cannot be realized by the conventional magnetic anti-counterfeiting element at present. The invention increases the anti-counterfeiting performance of the magnetic anti-counterfeiting element, the production device of the product and the production process, the manufacturing process of the magnetic anti-counterfeiting element is easy and simple, and the product has unique magnetic characteristics and is difficult to forge, thereby having higher anti-counterfeiting performance.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic side view of a magnetic security element provided by an embodiment of the present invention;
FIG. 2 is a schematic top view of a magnetic security element according to a first embodiment of the present invention;
FIG. 3 is a schematic side view of a pre-magnetization of a magnetic security element in accordance with an embodiment of the present invention;
FIG. 4 is a schematic side view of a pre-magnetization of a magnetic security element in accordance with an embodiment of the present invention;
FIG. 5 is a schematic side view of a detection method for a magnetic security element according to an embodiment of the present invention;
FIG. 6 is a waveform signal of the magnetic security element detected by the sensor after three pre-magnetizations according to the first embodiment of the present invention;
FIG. 7 is a schematic top view of a magnetic security element according to a second embodiment of the present invention;
FIG. 8 is a schematic side view of a pre-magnetization of a magnetic security element in accordance with embodiments of the present invention;
fig. 9 is a waveform signal of the magnetic security element detected by the sensor according to the second embodiment of the present invention after three pre-magnetizations.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
An example of a magnetic security element MAG is shown in FIG. 1 as a schematic side view, comprising a high coercivity magnetic region with magnetic anisotropy MAG-H and a low coercivity magnetic region with magnetic anisotropy MAG-L.
Preferably, a first magnetic region MAG-H and a second magnetic region MAG-LThe magnetic material in (1) has magnetic particles, and the magnetic material may be a magnetic particle type material, and the magnetic particles may be in a micro/nano size; the magnetic material selected for the first magnetic region MAG-H is BaFe12O19The coercive force is 1000 Oe-3500 Oe, and the morphology structure is a hexagonal structure; preferably, the magnetic material selected for the second magnetic region MAG-L is γ -Fe2O3Or CrO2Or doped modified barium ferrite with coercive force of 200 Oe-700 Oe and a needle structure or a sheet structure of a morphology structure; among them, books "ferrites", written by authors, describe the magnetic anisotropy characteristics of said magnetic material.
In fig. 2, a schematic top view of a magnetic security element MAG according to a first embodiment is shown, in which the primary magnetic particles of a first magnetic region (MAG-H1) with high coercivity and a second magnetic region (MAG-L2) with low coercivity are aligned in a straight line, the alignment directions of the primary magnetic particles of MAG-H1 and MAG-L2 are perpendicular and the plane formed by the straight lines is parallel to the surface of the substrate, the alignment direction of the primary magnetic particles of MAG-H1 is at an angle of 45 degrees to the length direction of the substrate, and the alignment direction of the primary magnetic particles of MAG-L2 is at an angle of 135 degrees to the length direction of the substrate. The substrate may be a belt, and the extending direction of the substrate may be a length direction, such as an x-axis direction. The regular arrangement of the primary magnetic particles in MAG-H1 and MAG-L2 can be achieved by drying and shaping magnetic ink magnetized by a magnetic field during the printing process. Magnetic particles are contained in the magnetic ink printed in the magnetic area, the magnetic particles in the magnetic ink magnetized by the magnetic field can be constrained by the magnetic field of the magnetizing device and are regularly arranged, and the magnetic particles with the characteristics of regular arrangement are main magnetic particles in the magnetic area after drying and forming; compared with the shape structure of the magnetic material in the magnetic ink, the regular arrangement rule of the main magnetic particles can be observed by an optical microscope.
The magnetic security element MAG in the first embodiment of the present invention is manufactured by gravure printing, wherein the first printing color set prints the first magnetic region (MAG-H1), the second printing color set prints the second magnetic region (MAG-L2), the magnetic ink is magnetized by the magnetizing device during printing, and then is dried and formed, specifically, the magnetic ink printed with the first magnetic region MAG-H1 is magnetized by the magnetizing device with magnetic lines of force forming an acute angle with the printing direction, the acute angle is, for example, 45 degrees, and then is dried and formed. The magnetic ink printed with the second magnetic area MAG-L2 passes through a magnetizing device with magnetic lines of force forming an obtuse angle with the printing direction, wherein the obtuse angle is 135 degrees for example, and then is dried and formed; wherein, after any one printed magnetic area is dried and formed, the other magnetic area can be printed; the printing direction may be the length direction of the substrate.
Fig. 3 shows a schematic side view of a pre-magnetization process of the magnetic security element MAG after printing and forming before detection by the magnetic Sensor in the first embodiment, in which the N-pole (or N-pole segment) of the Magnet for pre-magnetization is perpendicular to the substrate, and the N-pole of the Magnet may be in the length direction of the substrate, and the magnetic field strength is about 5000 Oe.
Fig. 4 shows a schematic side view of the pre-magnetization process of the magnetic security element MAG after printing and forming before detection by the magnetic Sensor in the first embodiment, in which the N-pole of the Magnet for pre-magnetization is perpendicular to the substrate, and the magnetic field strength has two modes of about 600Oe and 5000 Oe.
Fig. 5 shows the detection mode of the magnetic security element MAG, the Sensor being a magnetic Sensor, preferably a coil magnetic Sensor, and MAG being pre-magnetized by the Magnet in fig. 3, 4 or 8 before the Sensor detection.
The signal characteristics of the magnetic regions MAG-H1 and MAG-L2 detected by the magnetic Sensor are shown in FIG. 6, with the detection signal of MAG-H1 on the left and MAG-L2 on the right.
FIG. 6(a) shows the signal characteristics detected by the Sensor after the magnetic anti-counterfeiting element MAG is pre-magnetized in the manner shown in FIG. 3, the left side is the detection signal of MAG-H1, the right side is the detection signal of MAG-L2, the signals of the two are the same, and the detection signals can be two full-wave detection signals.
FIG. 6(b) (FIG. 6(b) is implemented on the basis of FIG. 6 (a)) shows that the magnetic anti-counterfeiting element MAG sequentially passes through the pre-magnetization modes shown in FIGS. 3 and 4, wherein in the magnetization mode shown in FIG. 4, Magnet with a magnetic field strength of about 600Oe is selected for pre-magnetization, the signal characteristic detected by the magnetic Sensor is that the detection signal of MAG-H1 is on the left side, the detection signal of MAG-L2 is on the right side, the detection signal of MAG-H1 is unchanged and still is a full-wave detection signal, and the detection signal of MAG-L2 disappears.
FIG. 6(c) shows the signal characteristics detected by the magnetic Sensor after the magnetic anti-counterfeiting element MAG is pre-magnetized in the pre-magnetization mode shown in FIG. 4 and after Magnet pre-magnetization with the magnetic field strength of about 5000Oe is selected, the left side is the detection signal of MAG-H1, the left side is still the full-wave detection signal, the right side is the detection signal of MAG-L2, and the phase information of the detection signal of MAG-L2 is opposite to the detection signal of MAG-H1.
In fig. 7, a schematic side view of a magnetic security element MAG according to a second embodiment is shown, in which the primary magnetic particles of the first magnetic region MAG-H3 with a high coercivity of magnetic anisotropy and the second magnetic region MAG-L4 with a low coercivity of magnetic anisotropy are aligned in a linear direction, the alignment directions of the primary magnetic particles of MAG-H3 and MAG-L4 being perpendicular, the alignment direction of the primary magnetic particles of MAG-H3 being perpendicular to the substrate surface and the alignment direction of the primary magnetic particles of MAG-L4 being parallel to the length of the substrate surface.
The magnetic anti-counterfeiting element MAG in the second embodiment of the invention is manufactured by gravure printing, wherein the first printing color group prints the first magnetic region MAG-H3, the second printing color group prints the second magnetic region MAG-L4, the magnetic ink is magnetized by a magnetizing device firstly in the printing process and then dried and formed, and specifically, the magnetic ink printed with the first magnetic region MAG-H3 passes through the magnetizing device with the direction of magnetic lines of force vertical to the substrate and then dried and formed. The magnetic ink printed with the second magnetic region MAG-L4 passes through a magnetizing device with magnetic lines parallel to the length direction of the substrate, and then is dried and formed.
Fig. 8 shows a schematic side view of a pre-magnetization process of the magnetic security element MAG after printing and forming before detection by the magnetic Sensor in the first embodiment, in which the N pole of the Magnet used for pre-magnetization is parallel to the length direction of the substrate, the N pole of the Magnet is closer to the substrate than the S pole, and the magnetic field strength is about 5000 Oe.
The signal characteristics of the magnetic regions MAG-H3 and MAG-L4 detected by the magnetic Sensor are shown in FIG. 9, the detection mode being performed as shown in FIG. 5, with the detection signal of MAG-H3 on the left and MAG-L4 on the right.
FIG. 9(a) shows the signal characteristics detected by the magnetic Sensor after the magnetic anti-counterfeiting element MAG is pre-magnetized in the manner shown in FIG. 3, the left side is the detection signal of MAG-H3, the right side is the detection signal of MAG-L4, the signals of the two are the same, and the detection signals can be two full-wave detection signals.
FIG. 9(b) (FIG. 9(b) is implemented on the basis of FIG. 9 (a)) shows that the magnetic anti-counterfeiting element MAG sequentially passes through the pre-magnetization modes shown in FIGS. 3 and 4, wherein in the magnetization mode shown in FIG. 4, Magnet with a magnetic field strength of about 600Oe is selected for pre-magnetization, the signal characteristic detected by the magnetic Sensor is that the left side is the detection signal of MAG-H3, the right side is the detection signal of MAG-L4, the detection signal of MAG-H3 is unchanged, and the detection signal of MAG-L4 disappears.
Fig. 9(c) shows the signal characteristics detected by the magnetic Sensor after the magnetic anti-counterfeiting element MAG is pre-magnetized in the manner shown in fig. 8, the left side is the detection signal of MAG-H3, and the right side is the detection signal of MAG-L4, wherein the amplitude of the detection signal of MAG-H3 is obviously increased compared with that of fig. 9(a), the shape is changed into a half-wave shape, the detection signal of MAG-L4 can still be a full-wave detection signal, and the amplitude of the detection signal is basically unchanged compared with that of fig. 9 (a).
The embodiment of the invention also provides a magnetic anti-counterfeiting product which comprises the magnetic anti-counterfeiting element. The magnetic security product comprises a value document or value document, such as a banknote, bank note, bond, ticket or document or the like.
Because the magnetic anti-counterfeiting element in the embodiment adopts the high-coercivity magnetic area MAG-H with magnetic anisotropy and the low-coercivity magnetic material MAG-L with magnetic anisotropy to encode, the magnetic anti-counterfeiting element organically integrates a plurality of magnetic characteristics of the magnetic material, such as remanence, coercivity, magnetic anisotropy and the like, can bear more encoded information, can realize the change of a plurality of dimensions in figures 6 and 9 by detecting signals, cannot be realized by a conventional magnetic anti-counterfeiting element, and greatly improves the anti-counterfeiting property of valuable securities.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. While the foregoing storage media may be non-transitory, the storage media may include: a U-disk, a hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (16)
1. A magnetic security element, comprising:
a substrate;
the surface of the substrate is provided with a printed magnetic area, and the magnetic area comprises a first magnetic area and a second magnetic area which can be coded,
the first magnetic region is composed of a high coercivity magnetic material having a magnetic anisotropy,
the second magnetic region is composed of a low coercivity magnetic material having a magnetic anisotropy,
the magnetic material in the first and second magnetic regions has magnetic particles,
the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged.
2. The magnetic security element according to claim 1,
the regular arrangement rule of the main magnetic particles in the first magnetic region and the second magnetic region is obtained by drying and molding magnetic ink magnetized through a magnetic field in the printing process.
3. The magnetic security element according to claim 2,
the main magnetic particles in the first magnetic region and the second magnetic region are regularly arranged in a straight line direction.
4. A magnetic security element according to claim 3,
the arrangement direction of the main magnetic particles in the first magnetic region is perpendicular to the arrangement direction of the main magnetic particles in the second magnetic region.
5. A magnetic security element according to claim 4,
and a plane formed by a straight line in the arrangement direction of the main magnetic particles in the first magnetic region and a straight line in the arrangement direction of the main magnetic particles in the second magnetic region is parallel to the surface of the substrate.
6. A magnetic security element according to claim 5,
the arrangement direction of the main magnetic particles in the first magnetic region and the arrangement direction of the main magnetic particles in the second magnetic region are not parallel to the length direction of the base material.
7. A magnetic security element according to claim 4,
the arrangement direction of the main magnetic particles in the first magnetic region or the second magnetic region is vertical to the surface of the substrate.
8. The magnetic security element according to claim 7,
the arrangement direction of the main magnetic particles in the first magnetic region is vertical to the surface of the substrate, and the arrangement direction of the main magnetic particles in the second magnetic region is parallel to the length direction of the substrate.
9. The magnetic security element according to claim 1,
the coercive force of the magnetic material in the first magnetic region is in a range of 1000Oe to 3500 Oe.
10. The magnetic security element according to claim 9,
the magnetic material in the first magnetic region is BaFe12O19；
The morphology structure of the magnetic material in the first magnetic region is a hexagonal structure.
11. The magnetic security element according to claim 1,
the coercive force of the magnetic material in the second magnetic region is in a range of 200Oe to 700 Oe.
12. The magnetic security element according to claim 11,
the magnetic material in the second magnetic region is gamma-Fe2O3Or CrO2Or a doped modified barium ferrite;
the morphology structure of the magnetic material in the second magnetic region is a needle-like structure or a sheet-like structure.
13. The magnetic security element according to any one of claims 1 to 12,
the first magnetic region and the second magnetic region are applied to the substrate surface in the form of alphanumeric characters or patterns.
14. The magnetic security element according to any one of claims 1 to 12,
the object protected by the magnetic anti-counterfeiting element comprises any one of anti-counterfeiting paper, anti-counterfeiting documents and product packages.
15. A magnetic security product comprising a magnetic security element according to any one of claims 1 to 14.
16. A magnetic security product according to claim 15, wherein the magnetic security product comprises a document of value or value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888037.2A CN113822401A (en) | 2021-08-03 | 2021-08-03 | Magnetic anti-counterfeiting element and magnetic anti-counterfeiting product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888037.2A CN113822401A (en) | 2021-08-03 | 2021-08-03 | Magnetic anti-counterfeiting element and magnetic anti-counterfeiting product |
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| CN113822401A true CN113822401A (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110888037.2A Pending CN113822401A (en) | 2021-08-03 | 2021-08-03 | Magnetic anti-counterfeiting element and magnetic anti-counterfeiting product |
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Cited By (1)
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| CN114454638A (en) * | 2022-01-05 | 2022-05-10 | 中钞印制技术研究院有限公司 | Optically variable magnetic ink printed product, manufacturing method and manufacturing equipment thereof |
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| CN103729931A (en) * | 2012-10-15 | 2014-04-16 | 中钞特种防伪科技有限公司 | Anti-fake component and product adopting same |
| US20160042265A1 (en) * | 2013-04-04 | 2016-02-11 | Giesecke & Devrient Gmbh | Security Element for Value Documents |
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| CN1812886A (en) * | 2003-07-03 | 2006-08-02 | 西柏控股有限公司 | Method and means for producing a magnetically induced design in a coating containing magnetic particles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454638A (en) * | 2022-01-05 | 2022-05-10 | 中钞印制技术研究院有限公司 | Optically variable magnetic ink printed product, manufacturing method and manufacturing equipment thereof |
| CN114454638B (en) * | 2022-01-05 | 2024-04-12 | 中钞印制技术研究院有限公司 | Optically variable magnetic ink printing product, manufacturing method and manufacturing equipment thereof |
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Address after: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District Applicant after: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd. Applicant after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District Applicant before: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd. Applicant before: CHINA BANKNOTE PRINTING AND MINTING Corp. |