A high security card recognizable by magnetic resonance and a method for manufacturing the same

Abstract

The application discloses a high-safety certificate card capable of being identified by magnetic resonance and a preparation method thereof. A first printed transparent layer is laminated on one side of a card substrate layer, and a second printed transparent layer is laminated on the other side of the card substrate layer. A first anti-fake mark inscribed layer is laminated on the side, away from the card substrate layer, of the first printed transparent layer, and a second anti-fake mark inscribed layer is laminated on the side, away from the card substrate layer, of the second printed transparent layer. A first protective separation layer is laminated on the side, away from the first printed transparent layer, of the first anti-fake mark inscribed layer, and a second protective separation layer is laminated on the side, away from the second printed transparent layer, of the second anti-fake mark inscribed layer. The first printed transparent layer and / or the second printed transparent layer is silk-screen printed with anti-fake ink. The anti-fake ink is provided with magnetic resonance spectrum materials of at least two frequency bands. The resonance spectrum band of the magnetic resonance spectrum materials is 212-395 Mhz. The anti-fake performance of the application is reliable, and the card as a whole has the functions of wear resistance and tamper resistance.

Description

Technical Field

[0001] This invention belongs to the field of card manufacturing technology, specifically relating to a high-security card that can be identified by magnetic resonance and its preparation method. Background Technology

[0002] With the deepening development of my country's residence permit system, banking security and credit system, and service industry standardization system, the number of documents issued in my country is growing rapidly, including ID cards, credit cards, membership cards, passports, and visas. Residents need to use various documents for employment, daily life, business, and tourism, which has also given rise to some high-tech crimes, such as tampering with personal information and counterfeiting various documents.

[0003] In existing technologies, anti-counterfeiting technologies typically employ high-fluorescence ink or electronic chip anti-counterfeiting. However, the electronic devices and codes used in existing electronic chip anti-counterfeiting technologies are susceptible to cracking, thus compromising the longevity and stability of electronic anti-counterfeiting measures. Furthermore, fluorescent ink anti-counterfeiting is easily replicated due to the readily available materials, rendering this anti-counterfeiting measure ineffective. Summary of the Invention

[0004] To address this issue, the present invention provides a high-security card capable of magnetic resonance identification and its preparation method, thereby solving the problem that existing card anti-counterfeiting technologies are easily cracked, leading to anti-counterfeiting failure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-security card that can be identified by magnetic resonance, comprising a card substrate layer, a first printed transparent layer, a second printed transparent layer, a first anti-counterfeiting mark engraving layer, a second anti-counterfeiting mark engraving layer, a first protective layer, and a second protective layer;

[0006] The first printed transparent layer is laminated to one side of the card substrate layer, and the second printed transparent layer is laminated to the other side of the card substrate layer;

[0007] The first anti-counterfeiting mark engraving layer is laminated on the side of the first printed transparent layer away from the card substrate layer, and the second anti-counterfeiting mark engraving layer is laminated on the side of the second printed transparent layer away from the card substrate layer;

[0008] The first protective layer is pressed onto the side of the first anti-counterfeiting mark engraving layer that is away from the first printed transparent layer, and the second protective layer is pressed onto the side of the second anti-counterfeiting mark engraving layer that is away from the second printed transparent layer;

[0009] The first printed transparent layer and / or the second printed transparent layer are screen-printed with anti-counterfeiting ink; the anti-counterfeiting ink is a magnetic resonance spectral material with at least two frequency bands.

[0010] As a preferred option for a high-security ID card that can be identified by magnetic resonance, the magnetic resonance spectral material has a resonance spectral range of 212–395 MHz.

[0011] The magnetic resonance spectroscopy material is selected from two or more of the following elements: SmFeN, NdFeN, Fe, Co, Ni and their alloys, and rare earth elements and their alloys.

[0012] As a preferred solution for high-security identification cards that can be identified by magnetic resonance, the magnetic resonance spectral materials in the anti-counterfeiting ink are: SmFeN-1 powder with a resonance spectral peak of 285MHz and NdFeN-1 powder with a resonance spectral peak of 312MHz.

[0013] As a preferred solution for a high-security card that can be identified by magnetic resonance, both the first anti-counterfeiting mark engraving layer and the second anti-counterfeiting mark engraving layer are made of PC white film.

[0014] Both the first and second anti-counterfeiting mark engraving layers are laser-etched with anti-counterfeiting marks and basic card information for card identification; the anti-counterfeiting mark is covered with a layer of SmFeN-1 powder with a resonance spectrum peak of 285MHz or a layer of NdFeN-1 powder with a resonance spectrum peak of 312MHz.

[0015] As a preferred solution for a high-security card with magnetic resonance recognition, the thickness of the card substrate layer is 0.3mm; the card substrate layer is internally encapsulated with an NFC chip, which is used to store card identity information.

[0016] As a preferred solution for a high-security ID card that can be identified by magnetic resonance, the thickness of both the first and second printed transparent layers is 0.1 mm, and both the first and second printed transparent layers are made of PC transparent film;

[0017] Both the first and second printed transparent layers are printed with the public information of the designated card.

[0018] As a preferred solution for a high-security card that can be identified by magnetic resonance, the surfaces of both the first and second protective layers are printed with specified pattern information using color UV printing.

[0019] This invention also provides a method for preparing a high-security ID card that can be identified by magnetic resonance imaging, comprising:

[0020] First, the first and second transparent printing layers are printed with offset printing background, public information, screen printing anti-counterfeiting ink, and intaglio printing anti-counterfeiting patterns.

[0021] The NFC chip is wire-wound and spot-welded onto the card substrate layer, and then laminated to form an inlay.

[0022] The first protective layer, the first anti-counterfeiting mark engraving layer, the first printed transparent layer, the card substrate layer, the second printed transparent layer, the second anti-counterfeiting mark engraving layer, and the second protective layer are sequentially stacked and fixed together using glue or a welding machine.

[0023] The first protective partition, the first anti-counterfeiting mark engraving layer, the first printed transparent layer, the card substrate layer, the second printed transparent layer, the second anti-counterfeiting mark engraving layer, and the second protective partition, which are stacked and fixed together, are pressed together by a steel plate.

[0024] The card obtained after pressing is punched according to the set size to obtain a single card;

[0025] Then, laser etching is used to print anti-counterfeiting marks and basic card information on the first and second printed transparent layers.

[0026] Finally, the specified pattern information is printed on the first and second protective layers using color UV printing.

[0027] As a preferred embodiment of the method for preparing a high-security card that can be identified by magnetic resonance, the anti-counterfeiting ink has a magnetic resonance spectral material with at least two frequency bands; the resonance spectral band of the magnetic resonance spectral material is 212-395MHz.

[0028] As a preferred embodiment of the method for preparing a high-security card with magnetic resonance identification, the magnetic resonance spectral material in the anti-counterfeiting ink is: SmFeN-1 powder with a resonance spectral peak of 285MHz and NdFeN-1 powder with a resonance spectral peak of 312MHz.

[0029] As a preferred method for preparing high-security identification cards with magnetic resonance recognition, the steps for obtaining SmFeN-1 powder with a resonance spectrum peak of 285MHz are as follows:

[0030] SmFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT to 82mT and a reaction rate of 26μm to 58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining a SmFeN thin film. The obtained SmFeN thin film was then pulverized to obtain SmFeN-1 powder.

[0031] The steps to obtain NdFeN-1 powder with a resonance spectral peak of 312 MHz are as follows:

[0032] NdFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT to 82mT and a reaction rate of 26μm to 58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining an NdFeN thin film. The obtained NdFeN thin film was then pulverized to obtain NdFeN-1 powder.

[0033] The present invention has the following advantages: a first printed transparent layer is laminated on one side of the card substrate layer, and a second printed transparent layer is laminated on the other side of the card substrate layer; a first anti-counterfeiting mark engraving layer is laminated on the side of the first printed transparent layer away from the card substrate layer, and a second anti-counterfeiting mark engraving layer is laminated on the side of the second printed transparent layer away from the card substrate layer; a first protective layer is laminated on the side of the first anti-counterfeiting mark engraving layer away from the first printed transparent layer, and a second protective layer is laminated on the side of the second anti-counterfeiting mark engraving layer away from the second printed transparent layer; the first printed transparent layer and / or the second printed transparent layer are screen-printed with anti-counterfeiting ink; the anti-counterfeiting ink has a magnetic resonance spectral material with at least two frequency bands; the resonance spectral range of the magnetic resonance spectral material is 212–395 MHz. This invention incorporates magnetic resonance spectroscopy materials containing two or more different frequency bands into the card manufacturing material. Once all the spectra corresponding to the magnetic resonance spectroscopy materials on the card are identified, it can be identified as a genuine card with reliable anti-counterfeiting performance. At the same time, anti-counterfeiting marks are set on the card to further enhance its anti-counterfeiting capabilities. The anti-counterfeiting marks are engraved with a protective layer to make the card as a whole wear-resistant and tamper-proof. Attached Figure Description

[0034] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a high-security card structure that can be identified by magnetic resonance, provided in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the process for preparing a high-security ID card that can be identified by magnetic resonance, as provided in an embodiment of the present invention.

[0037] In the diagram, 1 is the card substrate layer; 2 is the first printed transparent layer; 3 is the second printed transparent layer; 4 is the first anti-counterfeiting mark engraving layer; 5 is the second anti-counterfeiting mark engraving layer; 6 is the first protective layer; and 7 is the second protective layer. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] See Figure 1 This invention provides a high-security card that can be identified by magnetic resonance imaging, including a card substrate layer 1, a first printed transparent layer 2, a second printed transparent layer 3, a first anti-counterfeiting mark engraving layer 4, a second anti-counterfeiting mark engraving layer 5, a first protective layer 6, and a second protective layer 7.

[0040] The first printed transparent layer 2 is pressed onto one side of the card substrate layer 1, and the second printed transparent layer 3 is pressed onto the other side of the card substrate layer 1.

[0041] Among them, the first anti-counterfeiting mark engraving layer 4 is pressed on the side of the first printed transparent layer 2 away from the card substrate layer 1, and the second anti-counterfeiting mark engraving layer 5 is pressed on the side of the second printed transparent layer 3 away from the card substrate layer 1.

[0042] Among them, the first protective layer 6 is pressed onto the side of the first anti-counterfeiting mark engraving layer 4 away from the first printed transparent layer 2, and the second protective layer 7 is pressed onto the side of the second anti-counterfeiting mark engraving layer 5 away from the second printed transparent layer 3.

[0043] The first printed transparent layer 2 and the second printed transparent layer 3 are both screen-printed with anti-counterfeiting ink; the anti-counterfeiting ink is a magnetic resonance spectral material with at least two frequency bands; the resonance spectral band of the magnetic resonance spectral material is 212~395MHz.

[0044] In this embodiment, the thickness of the card substrate layer 1 is 0.3 mm; an NFC chip is encapsulated inside the card substrate layer 1, which is used to store card identity information. The NFC chip can be used in conjunction with the card, and the NFC chip itself has related technology and is currently widely used in cards. For example, by storing payment information in the NFC chip, payment can be completed simply by bringing the mobile phone close to the card reader, eliminating the need to swipe the card or enter a password, greatly improving the convenience of payment.

[0045] In this embodiment, the thickness of the first printed transparent layer 2 and the second printed transparent layer 3 is 0.1 mm. Both the first printed transparent layer 2 and the second printed transparent layer 3 are made of PC transparent film. The first printed transparent layer 2 and the second printed transparent layer 3 are printed with the public information of the designated card.

[0046] Specifically, the thickness of the first printed transparent layer 2 and the second printed transparent layer 3 after being pressed together is 0.1mm. The first printed transparent layer 2 and the second printed transparent layer 3 are printed with the card's public information and anti-counterfeiting ink, which can improve the overall anti-counterfeiting capability of the card.

[0047] In this embodiment, two or more magnetic resonance spectral materials with different frequency bands are used. The magnetic resonance identification material has a resonance spectral band of 212-395MHz. The magnetic resonance spectral materials are selected from two or more of the following elements: SmFeN, NdFeN, Fe, Co, Ni and their alloys, and rare earth elements and their alloys.

[0048] In one possible embodiment, the magnetic resonance spectral material in the anti-counterfeiting ink is: SmFeN-1 powder with a resonance spectral peak of 285MHz and NdFeN-1 powder with a resonance spectral peak of 312MHz.

[0049] Specifically, SmFeN was treated with a magnetron sputtering coating process. This involved depositing a coating material onto a glass surface and applying magnetic field pulses with a magnetic field strength of 56 mT–82 mT and a reaction rate of 26 μm–58 μm during the deposition process to obtain a spin-echo variable spectrum coating, resulting in a SmFeN thin film. The SmFeN thin film was then pulverized to obtain SmFeN-1 powder. Measurements were performed using a variable-frequency Oxford pulse spin-echo nuclear magnetic resonance spectrometer operating in incoherent reception mode. The resonance spectrum peak of SmFeN-1 after magnetron sputtering was 285 MHz, while the resonance spectrum peak of SmFeN without magnetron sputtering was 264 MHz.

[0050] NdFeN was also treated with magnetron sputtering. Specifically, a coating material was deposited on the glass surface, and magnetic field pulses with a magnetic field strength of 56 mT to 82 mT and a reaction rate of 26 μm to 58 μm were applied during the deposition process to obtain a spin-echo variable spectrum coating, resulting in an NdFeN thin film. The NdFeN thin film was then pulverized to obtain NdFeN-1 powder. Measurements were performed using a variable-frequency Oxford pulse spin-echo NMR spectrometer operating in incoherent mode. The resonance spectrum peak of NdFeN-1 after magnetron sputtering was 312 MHz, while the resonance spectrum peak of NdFeN without magnetron sputtering was 296 MHz.

[0051] In this process, SmFeN-1 and NdFeN-1 powders are added to the ink at a weight ratio of 0.5% to form anti-counterfeiting ink. This anti-counterfeiting ink is then screen-printed on the first transparent printing layer 2 and the second transparent printing layer 3. During use, measurements are taken using a variable-frequency Oxford pulse spin-echo nuclear magnetic resonance spectrometer operating in an incoherent reception mode. The card with the spectrum corresponding to the content of SmFeN-1 and NdFeN-1 is the genuine card.

[0052] In this embodiment, both the first anti-counterfeiting mark engraving layer 4 and the second anti-counterfeiting mark engraving layer 5 are made of PC white film; both the first anti-counterfeiting mark engraving layer 4 and the second anti-counterfeiting mark engraving layer 5 are laser-etched with anti-counterfeiting marks and basic card information for card identification; the anti-counterfeiting mark is covered with a layer of SmFeN-1 powder with a resonance spectrum peak of 285MHz or a layer of NdFeN-1 powder with a resonance spectrum peak of 312MHz.

[0053] Specifically, the first anti-counterfeiting mark engraving layer 4 and the second anti-counterfeiting mark engraving layer 5 are laser-etched with basic information and anti-counterfeiting marks for card identification; the anti-counterfeiting marks can automatically be marked with patterns as needed, such as names, portraits, numbers, or others. Of course, the anti-counterfeiting marks can also be coated with the aforementioned magnetic resonance spectroscopy material to facilitate anti-counterfeiting detection.

[0054] In this embodiment, the surfaces of both the first protective layer 6 and the second protective layer 7 are printed with specified pattern information using color UV printing. Specifically, the first protective layer 6 and the second protective layer 7 are transparent films with color UV printing to enhance the aesthetics of the card and allow for customized patterns. The first protective layer 6 and the second protective layer 7 provide a certain degree of protection for the first anti-counterfeiting mark engraving layer 4 and the second anti-counterfeiting mark engraving layer 5, protecting the anti-counterfeiting marks and basic information about the card engraved on the first anti-counterfeiting mark engraving layer 4 and the second anti-counterfeiting mark engraving layer 5.

[0055] See Figure 2 This invention also provides a method for preparing a high-security ID card that can be identified by magnetic resonance imaging, comprising:

[0056] S1. First, the first printed transparent layer 2 and the second printed transparent layer 3 are printed with offset printing background, public information printing, screen printing anti-counterfeiting ink, and intaglio printing anti-counterfeiting pattern.

[0057] S2. The NFC chip is wire-wound and spot-welded onto the card substrate layer 1, and then laminated to form an inlay.

[0058] S3. Use glue or a welding machine to sequentially stack and fix the first protective layer 6, the first anti-counterfeiting mark engraving layer 4, the first printed transparent layer 2, the card substrate layer 1, the second printed transparent layer 3, the second anti-counterfeiting mark engraving layer 5, and the second protective layer 7 together.

[0059] S4. The first protective partition layer 6, the first anti-counterfeiting mark engraving layer 4, the first printed transparent layer 2, the card substrate layer 1, the second printed transparent layer 3, the second anti-counterfeiting mark engraving layer 5, and the second protective partition layer 7, which are stacked and fixed together, are pressed together by a steel plate.

[0060] S5. The card obtained after pressing is punched according to the set size to obtain a single card;

[0061] S6. Then, use laser etching to print anti-counterfeiting marks and basic card information on the first printed transparent layer 2 and the second printed transparent layer 3.

[0062] S7. Finally, the specified pattern information is printed on the first protective layer 6 and the second protective layer 7 using color UV printing.

[0063] In this embodiment, the anti-counterfeiting ink is a magnetic resonance spectral material with at least two frequency bands; the resonance spectral range of the magnetic resonance spectral material is 212–395 MHz. For example, the magnetic resonance spectral material in the anti-counterfeiting ink is: SmFeN-1 powder with a resonance spectral peak of 285 MHz and NdFeN-1 powder with a resonance spectral peak of 312 MHz.

[0064] The steps for obtaining SmFeN-1 powder with a resonance spectral peak of 285 MHz are as follows:

[0065] SmFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT to 82mT and a reaction rate of 26μm to 58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining a SmFeN thin film. The obtained SmFeN thin film was then pulverized to obtain SmFeN-1 powder.

[0066] The steps to obtain NdFeN-1 powder with a resonance spectral peak of 312 MHz are as follows:

[0067] NdFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT to 82mT and a reaction rate of 26μm to 58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining an NdFeN thin film. The obtained NdFeN thin film was then pulverized to obtain NdFeN-1 powder.

[0068] In one possible embodiment, in step S4, the pressing conditions via the steel plate are set to 184–186 degrees Celsius, 10 Pa pressure, and 28 min time.

[0069] In one possible embodiment, in step S5, the laminated card sheet is divided into 5×5 sheets and punched into single standard cards. That is, multiple cards are prepared simultaneously throughout the entire preparation process to improve preparation efficiency.

[0070] In summary, the present invention comprises a card substrate layer 1, a first printed transparent layer 2, a second printed transparent layer 3, a first anti-counterfeiting mark engraving layer 4, a second anti-counterfeiting mark engraving layer 5, a first protective partition layer 6, and a second protective partition layer 7. The first printed transparent layer 2 is pressed onto one side of the card substrate layer 1, and the second printed transparent layer 3 is pressed onto the other side of the card substrate layer 1. The first anti-counterfeiting mark engraving layer 4 is pressed onto the side away from the first printed transparent layer 2 of the card substrate layer 1, and the second anti-counterfeiting mark engraving layer 5 is pressed onto the side away from the second printed transparent layer 3 of the card substrate layer 1. The first protective partition layer 6 is pressed onto the side away from the first anti-counterfeiting mark engraving layer 4 of the first printed transparent layer 2, and the second protective partition layer 7 is pressed onto the side away from the second anti-counterfeiting mark engraving layer 5 of the second printed transparent layer 3. Both the first printed transparent layer 2 and the second printed transparent layer 3 are screen-printed with anti-counterfeiting ink. The anti-counterfeiting ink is a magnetic resonance spectral material with at least two frequency bands. The resonance spectral range of the magnetic resonance spectral material is 212–395 MHz. In the manufacturing process, the first printed transparent layer 2 and the second printed transparent layer 3 are first subjected to offset printing of the background pattern, printing of public information, screen printing of anti-counterfeiting ink, and intaglio printing of anti-counterfeiting patterns; the NFC chip is wire-wound and soldered onto the card substrate layer 1, and then laminated to form an inlay; the first protective layer 6, the first anti-counterfeiting mark engraving layer 4, the first printed transparent layer 2, the card substrate layer 1, the second printed transparent layer 3, the second anti-counterfeiting mark engraving layer 5, and the second protective layer 7 are sequentially stacked and fixed together using glue or a welding machine; the stacked and fixed first protective layer 6, the first anti-counterfeiting mark engraving layer 4, the first printed transparent layer 2, the card substrate layer 1, the second printed transparent layer 3, the second anti-counterfeiting mark engraving layer 5, and the second protective layer 7 are pressed together using a steel plate; the card obtained after pressing is punched according to the set size to obtain a single card; then, anti-counterfeiting marks and basic card information are printed on the first printed transparent layer 2 and the second printed transparent layer 3 using laser etching; finally, specified pattern information is printed on the first protective layer 6 and the second protective layer 7 using color UV printing. This invention incorporates magnetic resonance spectroscopy materials containing two or more different frequency bands into the card manufacturing material. Once all the spectra corresponding to the magnetic resonance spectroscopy materials on the card are identified, it can be identified as a genuine card with reliable anti-counterfeiting performance. At the same time, anti-counterfeiting marks are set on the card to further enhance its anti-counterfeiting capabilities. The anti-counterfeiting marks are engraved with a protective layer to make the card as a whole wear-resistant and tamper-proof.

[0071] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-security ID card capable of magnetic resonance identification, characterized in that, It includes a card substrate layer (1), a first printed transparent layer (2), a second printed transparent layer (3), a first anti-counterfeiting mark engraving layer (4), a second anti-counterfeiting mark engraving layer (5), a first protective partition layer (6), and a second protective partition layer (7); The first printed transparent layer (2) is pressed onto one side of the card substrate layer (1), and the second printed transparent layer (3) is pressed onto the other side of the card substrate layer (1); The first anti-counterfeiting mark engraving layer (4) is pressed onto the side of the first printed transparent layer (2) away from the card substrate layer (1), and the second anti-counterfeiting mark engraving layer (5) is pressed onto the side of the second printed transparent layer (3) away from the card substrate layer (1). The first protective layer (6) is pressed onto the side of the first anti-counterfeiting mark engraving layer (4) away from the first printed transparent layer (2), and the second protective layer (7) is pressed onto the side of the second anti-counterfeiting mark engraving layer (5) away from the second printed transparent layer (3); The first printed transparent layer (2) and / or the second printed transparent layer (3) are screen-printed with anti-counterfeiting ink; the anti-counterfeiting ink has magnetic resonance spectral material with two frequency bands. The magnetic resonance spectral materials in the anti-counterfeiting ink are: SmFeN-1 powder with a resonance spectral peak of 285MHz and NdFeN-1 powder with a resonance spectral peak of 312MHz. Both the first anti-counterfeiting mark engraving layer (4) and the second anti-counterfeiting mark engraving layer (5) are made of PC white film; Both the first anti-counterfeiting mark engraving layer (4) and the second anti-counterfeiting mark engraving layer (5) are laser-etched with anti-counterfeiting marks and basic card information for card identification; the anti-counterfeiting mark is covered with a layer of SmFeN-1 powder with a resonance spectrum peak of 285MHz or a layer of NdFeN-1 powder with a resonance spectrum peak of 312MHz.

2. The high-security ID card with magnetic resonance recognition according to claim 1, characterized in that, The thickness of the card substrate layer (1) is 0.3 mm; the card substrate layer (1) is internally encapsulated with an NFC chip, which is used to store card identity information; The thickness of the first printed transparent layer (2) and the second printed transparent layer (3) is 0.1 mm. Both the first printed transparent layer (2) and the second printed transparent layer (3) are made of PC transparent film. Both the first printed transparent layer (2) and the second printed transparent layer (3) are printed with the public information of the designated card.

3. The high-security card with magnetic resonance recognition according to claim 1, characterized in that, The surfaces of the first protective layer (6) and the second protective layer (7) are printed with specified pattern information using color UV printing.

4. A method for preparing a high-security card capable of magnetic resonance identification as described in any one of claims 1 to 3, characterized in that, include: First, the first printed transparent layer (2) and the second printed transparent layer (3) are printed with offset printing background, public information printing, screen printing anti-counterfeiting ink, and intaglio printing anti-counterfeiting pattern; The NFC chip is wire-switched onto the card substrate layer (1) and then laminated. The first protective partition (6), the first anti-counterfeiting mark engraving layer (4), the first printed transparent layer (2), the card substrate layer (1), the second printed transparent layer (3), the second anti-counterfeiting mark engraving layer (5), and the second protective partition (7) are sequentially stacked and fixed together using glue or welding machine; The first protective partition (6), the first anti-counterfeiting mark engraving layer (4), the first printed transparent layer (2), the card substrate layer (1), the second printed transparent layer (3), the second anti-counterfeiting mark engraving layer (5), and the second protective partition (7) are stacked and fixed together by pressing them together with a steel plate; The card obtained after pressing is punched according to the set size to obtain a single card; Then, laser etching is used to print anti-counterfeiting marks and basic card information on the first printed transparent layer (2) and the second printed transparent layer (3); Finally, the pattern information is specified by color UV printing on the first protective layer (6) and the second protective layer (7).

5. The method for preparing a high-security ID card with magnetic resonance recognition according to claim 4, characterized in that, The magnetic resonance spectral materials in the anti-counterfeiting ink are: SmFeN-1 powder with a resonance spectral peak of 285MHz and NdFeN-1 powder with a resonance spectral peak of 312MHz.

6. The method for preparing a high-security ID card capable of magnetic resonance identification according to claim 5, characterized in that, The steps to obtain SmFeN-1 powder with a resonance spectral peak of 285 MHz are as follows: SmFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT~82mT and a reaction rate of 26μm~58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining a SmFeN thin film. The obtained SmFeN thin film was then pulverized to obtain SmFeN-1 powder. The steps to obtain NdFeN-1 powder with a resonance spectral peak of 312 MHz are as follows: NdFeN was treated by magnetron sputtering to deposit a coating material on the glass surface. During the deposition process of the coating material, a magnetic field pulse with a magnetic field strength of 56mT~82mT and a reaction rate of 26μm~58μm was applied to obtain a spin echo variation spectrum coating, thus obtaining an NdFeN thin film. The obtained NdFeN thin film was then pulverized to obtain NdFeN-1 powder.

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