CN113947174B - Anti-counterfeiting element and anti-counterfeiting product using same - Google Patents
Anti-counterfeiting element and anti-counterfeiting product using same Download PDFInfo
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- CN113947174B CN113947174B CN202111051742.3A CN202111051742A CN113947174B CN 113947174 B CN113947174 B CN 113947174B CN 202111051742 A CN202111051742 A CN 202111051742A CN 113947174 B CN113947174 B CN 113947174B
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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
Abstract
The invention provides an anti-counterfeiting element and an anti-counterfeiting product using the same, and belongs to the technical field of anti-counterfeiting. The security element comprises: a substrate; the substrate comprises at least one magnetic unit, the magnetic unit comprises at least three adjacent subareas, and the three adjacent subareas are: the first sub-area, the second sub-area and the third sub-area are combined to form a fourth area; the fourth region forms a first level visual coding; the first subregion forms a second level magnetic encoding; the fourth region and the third sub-region form a third-stage analog windowing code; the third subregion has an opacity greater than 70% and provides a simulated paper embedded region. The first-stage visual code and the second-stage magnetic code are respectively identified by naked eyes and machines, and at least one or more distinguishing characteristic codes exist between the first-stage visual code and the second-stage magnetic code, so that the concealment of the second-stage magnetic code is greatly improved, and the simulation windowing safety line capable of realizing machine-readable codes on a plastic substrate is provided.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting element, an anti-counterfeiting product using the anti-counterfeiting element and an anti-counterfeiting material for forming the anti-counterfeiting element.
Background
In order to prevent lawbreakers from forging high-security or high-added-value printed matters such as banknotes, checks, cards and packaging products by means of copying or scanning and the like, magnetic anti-counterfeiting technology is widely applied, and most of the technology is applied to anti-counterfeiting products in the form of magnetic security threads.
Early magnetic security threads were coated using full plate coating, for example, patent: GB1127043, in which a layer of magnetic material is uniformly coated over the entire security thread. The magnetic sensor is used to detect magnetic material on the security thread, and if a magnetic signal can be detected, it is true, otherwise it is false. However, in the security thread formed by such a coating method, the presence or absence of magnetism is detected only by the magnetic sensor, and the magnetic code sequence cannot be generated, and the coating method is easily imitated.
Patent EP0310707A2 filed by Mantegazza proposes a way of spacing magnetic and non-magnetic areas on a security thread, with magnetic sensors being able to detect magnetic coding sequences. The setting of the coding sequence and the remanence improves the anti-counterfeiting level and the production difficulty. The england bank published a patent WO9008367A1, which proposes a way to use magnetic sensors to detect magnetic coding sequences in a coding interval arrangement with width features on a security line. The magnetic coding sequence is generally applied to paper money products, the magnetic anti-counterfeiting information layer is generally arranged between the metal layer and the covering layer, the metal layer and the covering layer jointly realize effective hiding of the magnetic coding, and the covering layer is printed by gray or black ink. With the development of anti-counterfeiting technology, more and more banknotes take plastic base materials as printing carriers, the traditional intermittent magnetic coding cannot be directly applied to plastic banknote products, otherwise, the concealment of magnetic coding information becomes a great problem, coding information can be observed by naked eyes, at the same time, a series of quality defects such as tailing, white spots and the like in the printing process are also revealed, the overall attractiveness is greatly reduced, the production difficulty is increased, and the quality risk is also increased.
Patent CN106778989B applied by chinese banknote printing and making company proposes a way of setting a plurality of magnetic areas with different remanence and interval arrangement in continuous magnetic areas, and magnetic sensor is adopted to detect magnetic coding sequence, so as to effectively solve the problem that the intermittent coding is directly applied to plastic banknote. The application of the magnetic simulation fully-buried safety line with the magnetic coding sequence on the plastic substrate is realized.
Patent CN106599966B applied by chinese banknote printing and making company proposes a manner that the magnetic code measurement width is smaller than the visual width in the magnetic unit, so as to realize a manner of detecting the magnetic coding sequence in the magnetic text or the magnetic pattern. The British Del Lau company adopts a mode of yin-yang combination in Scotland British pounds plastic banknote products. The effect of simulating the fully buried safety line is realized on the plastic substrate. There is no precedent for applying the simulated windowing security thread on plastic money. The traditional intermittent magnetic code is directly applied to plastic paper money, so that the effect of simulating windowing can be achieved, but the problems of concealment, mass production and the like exist, and direct transplanting application cannot be realized.
Disclosure of Invention
The invention aims to provide an anti-counterfeiting element and an anti-counterfeiting product using the anti-counterfeiting element so as to solve the problems of anti-counterfeiting of plastic banknote products and the like.
To achieve the above object, a first aspect of the present invention provides a security element comprising: a substrate;
the substrate comprises at least one magnetic unit, wherein the magnetic unit comprises at least three adjacent subareas, and the three adjacent subareas are as follows: the first sub-area, the second sub-area and the third sub-area are combined to form a fourth area; the first sub-region, the third sub-region and the fourth region form a three-level coding sequence;
the fourth region forms a first level visual code, the first level visual code being visually identifiable;
the first subarea forms a second-stage magnetic code, and a code sequence of the second-stage magnetic code is detected by a magnetic sensor; the second-stage magnetic coding and the first-stage visual coding have at least one or more distinguishing characteristic codes;
the fourth region and the third sub-region form a third-stage analog windowing code; the opacity of the third subregion is greater than 70%, and the third subregion provides a simulated paper embedding region.
Optionally, the first sub-region and the second sub-region are magnetic regions made of the same material.
Optionally, the second sub-region is provided with one or more of the following: hollowed-out characters, figures or marks.
Optionally, the first sub-region and the second sub-region are coated with a uniform magnetic coating.
Optionally, the first sub-region is closely connected with the second sub-region.
Optionally, the magnetic induction of the first sub-region is greater than the magnetic induction of the second sub-region.
Optionally, the first and second subregions are made of coated magnetic particles.
Optionally, the first sub-region and the second sub-region are formed by hard magnetic material and/or soft magnetic material.
In a second aspect the invention provides a security product using said security element.
Optionally, the security element is placed in the security product in a windowed or fully embedded manner.
Optionally, the anti-counterfeiting product is one of the following: bank notes, entrance notes, certificates, documents or credit cards.
In a third aspect, the invention provides a security material for forming a security element, the material being coated magnetic particles, the magnetic particles comprising a magnetic core and a coating of a masking material covering the magnetic core, the magnetic core being a magnetic core having a remanent magnetisation of greater than 10 emu/g.
Optionally, the masking material coating is a chromium coating.
Optionally, the masking material coating is an alumina coating and/or a silver coating.
Optionally, the magnetic core is ferrite.
Optionally, the ferrite comprises Fe 3 O 4 Or barium ferrite.
Alternatively, the particle size distribution of the magnetic core is magnetic particles having a D50 of 0.3-50 μm.
Optionally, the magnetic core is spray dried.
Through the technical scheme, the anti-counterfeiting element forms a three-level coding sequence through the arrangement of the magnetic units with the adjacent subareas, and the three-level coding sequence is respectively a first-level visual coding, a second-level magnetic coding and a third-level analog windowing coding. The first-stage visual code and the second-stage magnetic code are respectively identified by naked eyes and machines, and have the characteristic of differentiation, and at least one or more distinguishing characteristic codes exist between the first-stage visual code and the second-stage magnetic code, so that the concealment of the second-stage magnetic code is greatly improved, and the magnetic code can be identified and read by machines; and a simulated windowing safety line for realizing machine-readable codes on a plastic substrate is also provided.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of 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, without limitation, the embodiments of the invention. In the drawings:
FIG. 1 is a schematic representation of a first stage visual coding of a security element provided in accordance with a first embodiment of the present invention;
FIG. 2 is a top plan view of a security element provided in accordance with a first embodiment of the present invention;
FIG. 3 is a schematic representation of a second level magnetic encoding of a security element provided in accordance with a first embodiment of the present invention;
FIG. 4 is a schematic representation of a second-stage magnetic encoding waveform of a security element provided in accordance with a first embodiment of the present invention;
FIG. 5 is a schematic representation of a third level of simulated windowing encoding of a security element provided in accordance with a first embodiment of the present invention;
FIG. 6 is a schematic representation of a first stage visual coding of a security element provided in accordance with a second embodiment of the invention;
FIG. 7 is a top plan view of a security element provided in accordance with a second embodiment of the present invention;
FIG. 8 is a schematic representation of a second level magnetic encoding of a security element provided in accordance with a second embodiment of the present invention;
FIG. 9 is a schematic representation of a second-stage magnetic encoding waveform of a security element provided in accordance with a second embodiment of the present invention;
fig. 10 is a schematic diagram of a third-stage analog windowing encoding of a security element provided in a second embodiment of the present invention.
Description of the reference numerals
1 a-first sub-region, 1 b-second sub-region, 1 c-third sub-region, 1 d-fourth region, 11-fenestration region, 12-buried region.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
Example 1
As shown in fig. 1-5, a first embodiment of the present invention provides a security element comprising: a substrate;
the substrate comprises at least one magnetic unit, wherein the magnetic unit comprises at least three adjacent subareas, and the three adjacent subareas are as follows: the first subarea 1a, the second subarea 1b and the third subarea 1c are sequentially arranged in an adjacent way, and the first subarea 1a is closely connected with the second subarea 1 b; the first sub-area 1a and the second sub-area 1b combine to form a fourth area 1d; the first sub-region 1a, the third sub-region 1c and the fourth region 1d form a three-level coding sequence.
As shown in fig. 1-2, the fourth region 1d forms a first level visual coding that is visually identifiable by the naked eye; the first level visual coding in this embodiment is: 11000011000011.
as shown in fig. 3, the first sub-region 1a forms a second level of magnetic coding, the coding sequence of which is detected by a magnetic sensor. In the present embodiment, the magnetic induction intensity of the first sub-area 1a is set to be greater than the magnetic induction intensity of the second sub-area 1b, so that the magnetic induction intensity of the second sub-area 1b cannot be effectively recognized by the magnetic sensor and converted into an electrical signal, but is merely used as an interference signal acquired by the magnetic sensor. Further causing the second-stage magnetic encoding to have at least one or more distinguishing feature encodings from the first-stage visual encoding; in this embodiment, the second level magnetic encoding detected by the magnetic sensor is: 10000010000010. comparing the first-stage visual code with the second-stage magnetic code, it can be known that the codes of the second bit, the eighth bit and the fourteenth bit of the first-stage visual code from the left of the second magnetic code are different, and the codes are the distinguishing feature codes.
Fig. 4 is a schematic diagram of a second-stage magnetic encoding waveform of the security element according to the first embodiment of the present invention. When the magnetic flux at the beginning of the magnetic region of the security element (beginning of the first sub-region 1a in fig. 1) changes from none to none, at the junction of the first sub-region 1a and the second sub-region 1b, a change in the magnetomotive force is formed at this location due to the different magnetomotive force of the first sub-region 1a and the second sub-region 1b, wherein the maximum amplitude of the magnetomotive force formed at the beginning of the first sub-region 1a and at the junction of the first sub-region 1a and the second sub-region 1b is Y, Y >0. The maximum amplitude of the magnetomotive force formed at the end of the second sub-area 1b is A, < -Y.
The fourth area 1d and the third sub-area 1c form a third-level analog windowing code; fig. 5 is a schematic diagram of a third-stage simulated windowing encoding of a security element according to a first embodiment of the present invention, in which the windowing region 11 corresponds to the fourth region 1d and the embedded region 12 corresponds to the third sub-region 1c. The opacity of the third sub-area 1c is greater than 70%, the third sub-area 1c providing a simulated paper embedded area.
The first sub-region 1a and the second sub-region 1b are magnetic regions made of the same material, which in some embodiments are also referred to as magnetic sub-regions 1a and 1 b.
In this embodiment, the first sub-area 1a and the second sub-area 1b are coated with a uniform magnetic coating.
The first sub-area 1a and the second sub-area 1b are in this embodiment made of coated magnetic particles.
In other embodiments, the first sub-region 1a and the second sub-region 1b are constituted by hard magnetic material and/or soft magnetic material.
By means of the anti-counterfeiting element, the embodiment of the invention also provides an anti-counterfeiting product, and the anti-counterfeiting product uses the anti-counterfeiting element. The anti-counterfeiting element is placed in the anti-counterfeiting product in a windowing or fully embedded mode.
Optionally, the anti-counterfeiting product comprises a banknote, a bank note, a ticket, a certificate, a file, a credit card and the like.
Example two
As shown in fig. 6-10, a second embodiment of the present invention provides a security element comprising: a substrate;
the substrate comprises at least one magnetic unit, wherein the magnetic unit comprises at least three adjacent subareas, and the three adjacent subareas are as follows: the first subarea 1a, the second subarea 1b and the third subarea 1c are sequentially arranged in an adjacent way, and the first subarea 1a is closely connected with the second subarea 1 b; the first sub-area 1a and the second sub-area 1b combine to form a fourth area 1d; the first sub-region 1a, the third sub-region 1c and the fourth region 1d form a three-level coding sequence.
In this embodiment, the second sub-area 1b is provided with hollowed-out text ABC.
As shown in fig. 6-7, the fourth region 1d forms a first level visual code that is visually identifiable by the naked eye; the first level visual coding in this embodiment is: 11000011000011, and the hollowed-out text ABC is visually seen.
As shown in fig. 8, the first sub-region 1a forms a second level of magnetic coding whose coding sequence is detected by a magnetic sensor. In the present embodiment, the magnetic induction intensity of the first sub-area 1a is set to be greater than the magnetic induction intensity of the second sub-area 1b, so that the magnetic induction intensity of the second sub-area 1b cannot be effectively recognized by the magnetic sensor and converted into an electrical signal, but is merely used as an interference signal acquired by the magnetic sensor. Further causing the second-stage magnetic encoding to have at least one or more distinguishing feature encodings from the first-stage visual encoding; in this embodiment, the second level magnetic encoding detected by the magnetic sensor is: 10000010000010. comparing the first-stage visual code with the second-stage magnetic code, it can be known that the codes of the second bit, the eighth bit and the fourteenth bit of the first-stage visual code from the left of the second magnetic code are different, and the codes are the distinguishing feature codes.
Fig. 9 is a schematic diagram of a second-stage magnetic encoding waveform of the security element according to the first embodiment of the present invention. When the magnetic flux at the beginning of the magnetic region of the security element (beginning of the first sub-region 1a in fig. 6) changes from none to none, at the junction of the first sub-region 1a and the second sub-region 1b, a change in the magnetomotive force is formed at this location due to the different magnetomotive force of the first sub-region 1a and the second sub-region 1b, wherein the maximum amplitude of the magnetomotive force formed at the beginning of the first sub-region 1a and at the junction of the first sub-region 1a and the second sub-region 1b is Y, Y >0. The maximum amplitude of the magnetomotive force formed at the end of the second sub-area 1b is A, < -Y.
The fourth area 1d and the third sub-area 1c form a third-level analog windowing code; fig. 10 is a schematic diagram of a third-stage simulated windowing encoding of a security element according to a first embodiment of the present invention, in which the windowing region 11 corresponds to the fourth region 1d and the embedded region 12 corresponds to the third sub-region 1c. The opacity of the third sub-area 1c is greater than 70%, the third sub-area 1c providing a simulated paper embedded area.
The first sub-region 1a and the second sub-region 1b are magnetic regions made of the same material, which in some embodiments are also referred to as magnetic sub-regions 1a and 1 b.
In some embodiments, the first sub-area 1a and the second sub-area 1b are coated with a uniform magnetic coating.
In other embodiments the first sub-region 1a and the second sub-region 1b are made of coated magnetic particles.
In other embodiments, the first sub-region 1a and the second sub-region 1b are constituted by hard magnetic material and/or soft magnetic material.
By means of the anti-counterfeiting element, the embodiment of the invention also provides an anti-counterfeiting product, and the anti-counterfeiting product uses the anti-counterfeiting element. The anti-counterfeiting element is placed in the anti-counterfeiting product in a windowing or fully embedded mode.
Optionally, the anti-counterfeiting product comprises a banknote, a bank note, a ticket, a certificate, a file, a credit card and the like.
It should be noted that, in other embodiments, the second sub-area 1b may also be provided with a graphic or a mark, or any combination of a graphic, a mark, and a hollowed-out text.
The order of the first sub-area, the second sub-area, and the third sub-area may be adjusted on the premise of keeping the first sub-area and the second sub-area tightly connected, for example, the order of the second sub-area, the first sub-area, and the third sub-area, the order of the third sub-area, the second sub-area, and the first sub-area, or the order of the third sub-area, the first sub-area, and the second sub-area.
The invention also provides an anti-counterfeiting material for forming the anti-counterfeiting element, wherein the material is coated magnetic particles, the magnetic particles comprise magnetic cores and a covering material coating for covering the magnetic cores, and the magnetic cores are magnetic cores with residual magnetization intensity of more than 10 emu/g.
In some embodiments, the masking material coating is a chromium coating. Other embodiments of the invention are not so limited and in other embodiments the masking material coating is an alumina coating or a silver coating or a combination of an alumina coating and a silver coating.
In some embodiments, the magnetic core is ferrite, including Fe3O4, barium ferrite, and the like. Alternatively, the particle size distribution of the magnetic core is magnetic particles having a D50 of 0.3-50 μm. Wherein D50 represents the particle size corresponding to the cumulative particle size distribution percentage of the magnetic core reaching 50%. In some embodiments, the magnetic core is subjected to a spray drying process.
The anti-counterfeiting element provided by the embodiment of the invention forms a three-level coding sequence through the arrangement of the magnetic units with adjacent subareas, wherein the three-level coding sequence is respectively a first-level visual coding, a second-level magnetic coding and a third-level analog windowing coding. The first-stage visual code and the second-stage magnetic code are respectively identified by naked eyes and machines, and have the characteristic of differentiation, and at least one or more distinguishing characteristic codes exist between the first-stage visual code and the second-stage magnetic code, so that the concealment of the second-stage magnetic code is greatly improved, and the magnetic code can be identified and read by machines; and a simulated windowing safety line for realizing machine-readable codes on a plastic substrate is also provided.
The alternative embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present invention within the scope of the technical concept of the embodiments of the present invention, and all the simple modifications belong to the protection scope of the embodiments of the present invention. In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of embodiments of the invention are not described in detail.
In addition, any combination of the various embodiments of the present invention may be made, so long as it does not deviate from the idea of the embodiments of the present invention, and it should also be regarded as what is disclosed in the embodiments of the present invention.
Claims (15)
1. A security element, the security element comprising: a substrate;
the substrate comprises at least one magnetic unit, wherein the magnetic unit comprises at least three adjacent subareas, and the three adjacent subareas are as follows: a first sub-region (1 a), a second sub-region (1 b) and a third sub-region (1 c); the first sub-area (1 a) and the second sub-area (1 b) are combined to form a fourth area (1 d); the first sub-region (1 a), the third sub-region (1 c) and the fourth region (1 d) form a three-level coding sequence;
the fourth region (1 d) forms a first level visual coding, the first level visual coding being identifiable to the naked eye;
the first sub-region (1 a) forms a second-stage magnetic encoding, the encoding sequence of which is detected by a magnetic sensor; the second-stage magnetic coding and the first-stage visual coding have at least one or more distinguishing characteristic codes;
-said fourth region (1 d) and said third sub-region (1 c) form a third-level analog windowing code; the opacity of the third sub-area (1 c) is greater than 70%, the third sub-area (1 c) provides a simulated paper embedding area, and the fourth area (1 d) corresponds to a windowing area (11);
the first sub-region (1 a) and the second sub-region (1 b) are magnetic regions made of the same material; the first subarea (1 a) is closely connected with the second subarea (1 b);
the magnetic induction of the first sub-region (1 a) is greater than the magnetic induction of the second sub-region (1 b).
2. A security element according to claim 1, characterized in that the second sub-area (1 b) is provided with one or more of the following: hollowed-out characters, figures or marks.
3. A security element according to claim 1, characterized in that the first sub-area (1 a) and the second sub-area (1 b) are coated with a uniform magnetic coating.
4. A security element according to claim 1, characterized in that the first sub-region (1 a) and the second sub-region (1 b) are made of coated magnetic particles.
5. The security element according to claim 1, characterized in that the first sub-region (1 a) and the second sub-region (1 b) are composed of hard-magnetic material and/or soft-magnetic material.
6. A security product, characterized in that it uses the security element according to any one of claims 1 to 5.
7. The security product of claim 6 wherein the security element is placed in the security product in a fenestration or fully embedded manner.
8. The anti-counterfeiting product according to claim 6, wherein the anti-counterfeiting product is one of the following: bank notes, entrance notes, certificates, documents or credit cards.
9. A security material forming the security element of any one of claims 1 to 5, wherein the material is a coated magnetic particle comprising a magnetic core and a coating of a masking material covering the magnetic core, the magnetic core being a magnetic core having a remanent magnetization of greater than 10 emu/g.
10. The security material forming a security element of claim 9 wherein the covering material coating is a chromium coating.
11. The security material forming a security element of claim 9, wherein the masking material coating is an alumina coating and/or a silver coating.
12. The security element-forming material of claim 9, wherein the magnetic core is ferrite.
13. The security element-forming material of claim 12, wherein the ferrite comprises Fe 3 O 4 Or barium ferrite.
14. The security material forming a security element of claim 9 wherein the particle size distribution of the magnetic core is magnetic particles with a D50 of 0.3-50 μm.
15. The security element-forming security material of claim 9, wherein the magnetic core is spray dried.
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| CN107089066A (en) * | 2016-02-17 | 2017-08-25 | 捷德货币技术有限责任公司 | The security element encoded with magnetic |
| CN206259124U (en) * | 2016-10-18 | 2017-06-16 | 武汉华工图像技术开发有限公司 | A kind of sewing formula anti-counterfeiting line holographic label |
| CN106778989A (en) * | 2016-11-22 | 2017-05-31 | 中钞特种防伪科技有限公司 | Security element and anti-fake product |
| JP2019123234A (en) * | 2018-01-15 | 2019-07-25 | 独立行政法人 国立印刷局 | Forgery prevention medium with window and method of manufacturing it |
| CN111055609A (en) * | 2019-12-26 | 2020-04-24 | 上海印钞有限公司 | Anti-counterfeiting self-identification method based on transparent window |
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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. |
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