Magnetic printing method and three-dimensional effect making device

Abstract

The application discloses a kind of magnetic printing manufacturing method and stereoscopic effect manufacturing device, it is related to magnetic printing technical field.The method core step is: the magnetic plate engraved with target graphics is made, magnetic ink containing magnetic pigment is printed to the printing material, the printing material is overlapped with the magnetic plate and is placed in the magnetic field range of composite magnetic field generator, the magnetic field distribution corresponding with graphics is formed by magnetic plate interference magnetic field, makes magnetic pigment directional deflection, finally through solidification locks pigment deflection angle, completes magnetic stereoscopic graphics manufacturing.Special device includes shell, magnetic plate and composite magnetic field generator.The application completely solves the problem of the existing magnetic pole combination mode, without complex magnetic field design, greatly reduces graphics design threshold, can be made clear, defect-free, stereoscopic sense strong magnetic stereoscopic graphics, with high anti-counterfeiting and high ornamental value, can be adapted to existing various printing equipment, has very high industrial application value.

Description

Technical Field

[0001] This invention relates to the field of magnetic printing technology, and in particular to a method for producing a three-dimensional magnetic printing effect, as well as an apparatus for producing the three-dimensional effect using this method. Background Technology

[0002] Magnetic 3D effect is a technique that uses a magnetic field to orient magnetic pigments in ink, thereby creating a three-dimensional visual effect on a flat substrate. This technology can produce a three-dimensional embossed effect with a strong metallic luster while maintaining the flatness of the substrate surface. Therefore, it is widely used in fields with high anti-counterfeiting requirements, such as banknotes, stamps, securities, and high-end packaging labels, and is currently capable of large-scale production application through ink printing and coating.

[0003] In existing technologies, the realization of magnetic 3D effects mainly relies on the combination of magnetic poles of multiple sets of magnets to form a specifically distributed magnetic field, thereby controlling the directional arrangement of magnetic pigments. However, this method has significant technical drawbacks: during the magnetic field construction process, on the cross-section of the north and south pole combination, magnetic field lines extend from the south pole to the north pole, which can cause the magnetic pigments to rotate and form a magnetic plane parallel to the substrate, presenting a bright metallic luster; however, when it is necessary to create complex graphics such as embossed magnetic patterns or planar magnetic text, the magnetic pole algorithm is prone to the problem of pole-hole formation, i.e., the north and south poles meet to form an odd number of magnetic pole holes, making it impossible to form a stable magnetic field region with paired north and south poles. This region will have dark shadows, seriously affecting the presentation effect and design integrity of the pattern. This method requires graphic designers to have professional magnetic field design thinking for magnetic combination, which has a high threshold for pattern design and cannot achieve rapid design and implementation of complex graphics, thus limiting the application and expansion of magnetic 3D printing technology.

[0004] To address the problems of the existing technologies, the research and development team conducted extensive experiments and verifications, and developed a method for creating a three-dimensional magnetic printing effect, as well as a dedicated production device. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a method for creating a three-dimensional magnetic printing effect, as well as an apparatus for creating the three-dimensional effect using this method.

[0006] One embodiment of the present invention addresses its technical problem by employing the following technical solution: a magnetic printing method, comprising the following steps: S1. Make a corresponding magnetic plate according to the target three-dimensional graphic, wherein the magnetic plate is a magnetic plate with a pattern on its surface that is consistent with the target three-dimensional graphic. S2. Print magnetic ink containing magnetic pigment onto the surface of the substrate to obtain a substrate with a magnetic ink layer. S3. The substrate with the magnetic ink layer is overlapped and bonded with the magnetic plate and placed within the magnetic field range of the composite magnetic field generator. The magnetic plate interferes with the magnetic field of the composite magnetic field generator, forming a magnetic field distribution corresponding to the pattern on the surface of the magnetic plate. This causes the magnetic pigment in the magnetic ink layer to be directionally deflected along the magnetic field lines, forming a magnetic orientation arrangement consistent with the target three-dimensional pattern. S4. A curing device is used to cure or pre-cur the magnetic ink that has been magnetically oriented, lock the deflection angle of the magnetic pigment, complete the magnetic shaping, and finally obtain a magnetic three-dimensional effect image corresponding to the target three-dimensional image on the surface of the substrate.

[0007] Optionally, the magnetic conductive plate is made of any one of iron, nickel, stainless steel, or their magnetic alloys, and the thickness of the magnetic conductive plate is 0.01mm to 10mm. The specified magnetic conductive material possesses excellent soft magnetic properties, which can efficiently absorb the magnetic field lines output by the composite magnetic field generator, quickly achieving uniform diffusion of magnetic field lines across the entire plate surface, ensuring the unidirectionality of the overall magnetic field of the magnetic conductive plate, and providing a core foundation for forming a precise and uniform graphic magnetic field distribution.

[0008] Preferably, the magnetic conductive plate is 2mm thick and made of magnetically conductive stainless steel. Graphics are engraved on the surface of the magnetic conductive plate using a chemical etching process. This achieves a balance between excellent magnetic conductivity, structural rigidity, and printability.

[0009] Optionally, the graphics on the surface of the magnetic conductive plate can be prepared by any one of the etching processes selected from laser engraving, mechanical engraving, wire cutting, or chemical etching. A multi-dimensional, adaptable etching process solution is provided, which can be flexibly selected according to the material, thickness, graphic precision, and production volume of the magnetic conductive plate, comprehensively covering the entire production cycle from single-piece customized prototyping to large-scale mass production.

[0010] Optionally, the magnetic ink comprises magnetic pigment and ink binder, wherein, by weight, the magnetic pigment is 0.1-20 parts and the ink binder is 80-99 parts; the amount of magnetic pigment added to the magnetic ink is 0.1%-25%; this limited component ratio range balances the magnetic response performance, printability, and film-forming performance of the magnetic ink; it avoids the problems of weak magnetic deflection effect, unclear three-dimensional effect, and insufficient base color coverage caused by too low a magnetic pigment addition, and also avoids the problems of poor ink fluidity, decreased printability, insufficient adhesion after film formation, and easy powdering and cracking caused by too high a addition. The magnetic pigment can be any one of optical coating magnetic pigment, chemical coating magnetic pigment, coated layer film magnetic pigment, or alloy magnetic pigment. It can be flexibly selected according to the pigment preparation process, magnetic response requirements, and optical effects, fully adapting to different application scenarios and product positioning.

[0011] Optionally, the magnetic pigment has a sheet-like structure with a thickness-to-diameter ratio of 1:10 to 1:100 and a particle size of 3μm to 200μm. The surface or internal structure of the magnetic pigment contains a magnetically conductive material, which exhibits ferromagnetism or paramagnetism under the influence of a magnetic field. The sheet-like magnetic pigment is the optical core for achieving a three-dimensional visual effect. Different deflection angles of the sheet-like pigment result in different reflection angles of ambient light, thus creating changes in brightness and darkness at different viewing angles, presenting a stereoscopic visual effect visible to the naked eye. This optical principle ensures the feasibility and stability of the magnetic stereoscopic effect.

[0012] Optionally, the magnetic pigment is prepared using an optical coating process, with a particle size of 4μm and a thickness-to-diameter ratio of 1:20. The amount of magnetic pigment added to the magnetic ink is 10%. The magnetic pigment prepared by the optical coating process has extremely high light reflectivity and mirror-level metallic luster, and its visual texture is superior to that of ordinary coated pigments. It can enhance the high-end texture and ornamental value of the product and is suitable for ultra-high value-added scenarios such as luxury packaging and high-end anti-counterfeiting.

[0013] Optionally, the magnetic material is a mixture of one or more ferromagnetic materials selected from iron, cobalt, nickel, titanium, vanadium, niobium, zirconium, and gallium. The ferromagnetic material is incorporated into the magnetic pigment through processes such as elemental composition, oxide coating, fusion, or optical coating. Alternatively, the magnetic material may be a mixture of one or more paramagnetic materials selected from iron, gold, silver, copper, bismuth, aluminum chloride, and zinc. It can be flexibly selected based on the pigment preparation process, magnetic response requirements, and optical effects, fully adapting to different application scenarios and product positioning.

[0014] Optionally, in step S2, the printing adopts any one of the printing and coating processes such as screen printing, gravure printing, flexographic printing, coating, spraying, and printing; it can be adapted to all existing mainstream printing and coating processes, without the need to develop special printing equipment, and can be directly compatible with existing production lines, which greatly reduces the production line transformation cost and technical application threshold of enterprises.

[0015] In step S4, the curing device uses any one of UV light source, electron beam EB, or thermal energy as the curing energy source. Through curing, the ink binder in the magnetic ink is cross-linked and cured, locking the deflection angle of the magnetic pigment. It covers the existing mainstream ink curing system and can be seamlessly connected with the curing unit of existing printing equipment without the need for additional dedicated curing equipment, thus reducing the adaptation cost of the production line.

[0016] The curing energy source is a UV light source, which achieves photocuring and shaping of magnetic ink through UV light irradiation. UV light curing has an ultra-fast curing speed and can complete curing and locking at the moment the magnetic pigment completes its directional deflection, completely avoiding the problem of pigment deflection angle shift during the movement of the substrate. Even on a high-speed production line, the accuracy and consistency of the three-dimensional effect can be guaranteed.

[0017] The composite magnetic field generator can be any one of a permanent magnet, an electromagnet, or a moving magnetic field generator, used to provide a stable operating magnetic field. It can be flexibly selected according to production processes, production line layouts, and desired effects, adapting to different production scenarios from offline small-scale prototyping to online high-speed mass production.

[0018] The present invention also provides a three-dimensional effect fabrication device for a magnetic printing fabrication method to achieve the above-mentioned three-dimensional effect, comprising a housing, a magnetic conductive plate, and a composite magnetic field generator; the composite magnetic field generator is fixedly installed inside the housing, and the magnetic conductive plate is detachably installed on the top surface of the housing and located in the magnetic field output direction of the composite magnetic field generator; the housing is used to provide support for the magnetic conductive plate and the substrate, the composite magnetic field generator is used to provide a stable operating magnetic field, and the magnetic conductive plate is used to interfere with the operating magnetic field to form a magnetic field distribution corresponding to the pattern on its own surface.

[0019] Optionally, the 3D effect production device can be mounted on any type of printing and coating equipment, including screen printing machines, gravure printing machines, flexographic printing machines, coating machines, spraying devices, and printing equipment, enabling continuous production in conjunction with the printing and coating equipment. It can be directly mounted on existing mainstream printing equipment, linking with the material feeding, printing, and curing units to achieve continuous production without the need for separate offline processing, significantly improving production efficiency while avoiding problems such as ink drying and pigment deflection failure caused by offline processing.

[0020] The beneficial effects of this invention are: 1. This invention solves the problem of dark spots caused by pole holes in existing magnetic pole combination methods. It interferes with the composite magnetic field by using a magnetically conductive plate engraved with the target image. Utilizing the absorption effect of the magnetically conductive metal on magnetic field lines, a magnetic strength distribution area corresponding to the image is formed on the magnetically conductive plate, thus creating a magnetic field that precisely matches the target image. This eliminates the problem of pole holes caused by magnetic pole intersections, resulting in magnetic 3D images without dark shadows, clear and complete images, and a uniform and stable 3D effect.

[0021] 2. It lowers the barrier to pattern design and enhances design flexibility. This invention does not require designers to have professional magnetic pole combination and three-dimensional magnetic field design capabilities. The magnetic three-dimensional effect can be achieved simply by creating a corresponding magnetic conductive plate according to the target graphic. It can quickly adapt to any complex graphic design, greatly expanding the application scenarios of magnetic three-dimensional printing technology.

[0022] 3. Improved precision and presentation quality of magnetic 3D effects. This invention can control the precision of graphics and text through the etching process of the magnetic plate, achieving even higher plate-making precision. Combined with optimized magnetic pigment parameters, it can achieve delicate 3D gloss variations, presenting metallic colors and graphics with a strong 3D effect, significantly improving the anti-counterfeiting performance and aesthetic value of products, while also enhancing the visual hierarchy and added value of packaging and printing products.

[0023] 4. High adaptability, enabling large-scale continuous production. The manufacturing device of this invention can be directly mounted on existing screen printing, gravure printing, flexographic printing and other printing and coating equipment, seamlessly connecting with existing production lines. It can realize continuous and large-scale production of magnetic three-dimensional printing without the need for large-scale modification of existing equipment, and has extremely high industrial application value.

[0024] 5. High process stability and high yield. This invention forms a fixed magnetic field distribution through a magnetic plate, and the magnetic field stability is much higher than that of traditional magnetic pole combinations. The directional deflection of the magnetic pigment is consistent, and the batch stability of the magnetic three-dimensional effect after curing is strong, which greatly reduces the defect rate in the production process.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the stereoscopic effect production device of the present invention; Figure 2 for Figure 1 A cross-sectional view of the device for creating stereoscopic effects.

[0027] Explanation of key component symbols: 10. Outer shell; 20. Magnetic plate; 30. Composite magnetic field generator. Detailed Implementation

[0028] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0029] In the description of this invention, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0031] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0032] Example 1 This embodiment provides a method for creating a three-dimensional magnetic printing effect, as well as a matching three-dimensional effect creation device. The specific solution is as follows: The three-dimensional effect creation device of this embodiment includes a housing 10, a magnetic plate 20, and a composite magnetic field generator 30; the composite magnetic field generator 30 is fixedly installed inside the housing 10, and the magnetic plate 20 is detachably installed on the top surface of the housing 10 and located directly above the composite magnetic field generator 30. The housing 10 provides stable support for the magnetic plate 20 and the substrate to be processed.

[0033] In this embodiment, the composite magnetic field generator 30 uses a combination of permanent magnets to provide a stable and uniform magnetic field.

[0034] The magnetic printing method based on the three-dimensional effect of the above-mentioned device includes the following steps: S1. Fabricate a corresponding magnetic plate 20 according to the target three-dimensional graphic: In this embodiment, the target three-dimensional graphic is a brand logo relief pattern. The magnetic plate 20 is made of a magnetic stainless steel plate with a thickness of 2mm. The graphic consistent with the target logo is engraved on the surface of the magnetic plate 20 through a chemical etching process. The plate manufacturing precision is controlled at 50 micrometers. S2. Magnetic ink printing: The prepared magnetic ink is printed onto the surface of a PET substrate using a screen printing process, forming a uniform wet magnetic ink layer on the substrate surface. In this embodiment, the magnetic ink, by weight, consists of 10 parts magnetic pigment and 90 parts UV-curable ink binder, with the magnetic pigment accounting for 10% of the ink. The magnetic pigment is prepared using an optical coating process, has a sheet-like structure, a particle size of 4 μm, and a thickness-to-diameter ratio of 1:20. The pigment contains ferromagnetic permeable materials composed of elemental iron and nickel. S3. Magnetic Orientation: The PET substrate printed with a wet magnetic ink layer is overlapped and bonded to the magnetic plate 20 and placed directly above the composite magnetic field generator 30. When the uniform magnetic field output by the composite magnetic field generator 30 passes through the magnetic plate 20, it is interfered with by the graphics on the magnetic plate 20. The metal solid area of ​​the magnetic plate 20 absorbs the magnetic lines of force, forming a strong magnetic area, while the etched areas of the graphics (thickness reduction or hollowing out areas) form a weak magnetic area, thus forming a magnetic field distribution that completely corresponds to the graphics on the magnetic plate 20. Under the action of this magnetic field, the magnetic pigments in the wet magnetic ink layer are oriented and deflected along the magnetic lines of force. The deflection angle of the pigments in different areas matches the magnetic field distribution, forming a magnetic orientation arrangement consistent with the target logo, presenting a corresponding three-dimensional visual effect. S4. Magnetic Shaping and Curing: A UV light source curing device is used to irradiate the magnetic ink that has been magnetically oriented, causing the UV-curable ink binder to undergo rapid cross-linking and curing, instantly locking the deflection angle of the magnetic pigment and completing the magnetic shaping.

[0035] Finally, a high-definition magnetic 3D embossed graphic that perfectly corresponds to the target logo and has no dark spots is obtained on the surface of the PET substrate. The graphic has a strong metallic luster and a three-dimensional visual effect, and presents uniform light and dark changes from different viewing angles, without the problem of dark spots in existing technologies.

[0036] Example 2 This embodiment provides a method for creating a three-dimensional magnetic printing effect, which differs from Embodiment 1 only in that: S1. The magnetic plate 20 is made of pure iron plate with a thickness of 0.5mm. The target text and graphics are engraved on the surface by laser engraving process, and the plate making accuracy is 100 micrometers. S2. The printing process adopts gravure printing, and the substrate is coated paper; the magnetic ink, by weight, consists of 5 parts magnetic pigment and 95 parts ink binder. The magnetic pigment is a chemically coated magnetic pigment with a flake structure, a particle size of 20μm, and a thickness-to-diameter ratio of 1:50. The pigment surface is coated with an iron-cobalt alloy magnetic conductive layer, and the amount of magnetic pigment added to the ink is 5%. S3. The composite magnetic field generator 30 uses an electromagnet, and the magnetic field strength can be adjusted by current. S4. The curing method uses electron beam (EB) curing to complete the cross-linking and shaping of the magnetic ink.

[0037] This embodiment ultimately produces clear magnetic 3D text and graphics on the surface of coated paper, without dark spots or defects, with a uniform 3D effect and excellent metallic luster.

[0038] Example 3 This embodiment provides a method for creating a three-dimensional magnetic printing effect, which differs from Embodiment 1 only in that: S1. The magnetic plate 20 is made of a 50mm thick nickel-based alloy plate, and large-size relief graphics are engraved by mechanical engraving process; S2. The printing process adopts roller coating, and the substrate is metal sheet; the magnetic ink, by weight, consists of 18 parts magnetic pigment and 82 parts thermosetting ink binder. The magnetic pigment is an alloy magnetic pigment with a flake structure, a particle size of 150μm, a thickness-to-diameter ratio of 1:80, and the amount of magnetic pigment added to the ink is 18%. S4. The curing method uses hot air heating to cure the thermosetting ink binder, which cross-links and cures the thermosetting ink binder through heat energy, locking the deflection angle of the magnetic pigment.

[0039] This embodiment ultimately produces large-sized magnetic three-dimensional relief graphics on the surface of the metal sheet, with a strong three-dimensional effect and excellent anti-counterfeiting performance, which can be applied to the field of high-end metal packaging.

[0040] Comparative Example This comparative example uses the existing magnetic pole combination method to produce the same logo magnetic three-dimensional graphic as in Example 1. Multiple sets of north and south pole magnets are combined to form the magnetic field of the corresponding pattern. The remaining ink, substrate, and curing process are the same as in Example 1.

[0041] The results showed that the logo produced in the comparative example had obvious dark shadows in the closed areas where the lines intersected, i.e., a cavity defect, poor graphic integrity, and uneven three-dimensional effect; while the graphic produced in Example 1 had no dark spots, clear lines, uniform three-dimensional effect, and a metallic luster and visual layering that were far superior to the comparative example.

[0042] Meanwhile, the magnetic plate 20 of Example 1 can be manufactured in just 2 days, while the design and debugging of the magnetic pole combination in the comparative example takes more than 15 days. This invention significantly reduces the design cycle and threshold.

[0043] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A method for producing magnetic printing, characterized in that, Includes the following steps: S1. Make a corresponding magnetic plate (20) according to the target three-dimensional graphic, wherein the magnetic plate (20) is a magnetic plate with a pattern on the surface that is consistent with the target three-dimensional graphic; S2. Print magnetic ink containing magnetic pigment onto the surface of the substrate to obtain a substrate with a magnetic ink layer. S3. The substrate with the magnetic ink layer is overlapped and bonded with the magnetic plate (20) and placed within the magnetic field range of the composite magnetic field generator (30). The magnetic plate (20) interferes with the magnetic field of the composite magnetic field generator (30) to form a magnetic field distribution corresponding to the pattern on the surface of the magnetic plate (20), so that the magnetic pigment in the magnetic ink layer is oriented and deflected along the magnetic field lines, forming a magnetic orientation arrangement consistent with the target three-dimensional pattern. S4. A curing device is used to cure or pre-cur the magnetic ink that has been magnetically oriented, lock the deflection angle of the magnetic pigment, complete the magnetic shaping, and finally obtain a magnetic three-dimensional effect image corresponding to the target three-dimensional image on the surface of the substrate.

2. The magnetic printing method according to claim 1, characterized in that: The magnetic plate (20) is made of any one of iron, nickel, stainless steel or their magnetic alloys, and the thickness of the magnetic plate (20) is 0.01mm to 10mm.

3. The magnetic printing method according to claim 2, characterized in that: The magnetic plate (20) is 2mm thick and made of magnetic stainless steel. The magnetic plate (20) is engraved with graphics and text through a chemical etching process.

4. The magnetic printing method according to claim 1, characterized in that: The graphics on the surface of the magnetic plate (20) are prepared by any one of the etching processes, namely laser engraving, mechanical engraving, wire cutting or chemical etching.

5. The magnetic printing method according to claim 1, characterized in that: The magnetic ink comprises magnetic pigment and ink binder. By weight, the magnetic pigment is 0.1 to 20 parts and the ink binder is 80 to 99 parts. The amount of magnetic pigment added to the magnetic ink is 0.1% to 25%. The magnetic pigment is any one of optical coating magnetic pigment, chemical coating magnetic pigment, coating film magnetic pigment, and alloy magnetic pigment.

6. The magnetic printing method according to claim 5, characterized in that: The magnetic pigment has a flake-like structure with a thickness-to-diameter ratio of 1:10 to 1:100 and a particle size of 3μm to 200μm. The surface or internal structure of the magnetic pigment contains a magnetically conductive material, which exhibits ferromagnetism or paramagnetism under the action of a magnetic field. Alternatively, the magnetic pigment is prepared using an optical coating process, with a particle size of 4 μm and a thickness-to-diameter ratio of 1:20, and the amount of the magnetic pigment added to the magnetic ink is 10%.

7. The magnetic printing method according to claim 6, characterized in that: The magnetic material is a mixture of one or more ferromagnetic materials selected from iron, cobalt, nickel, titanium, vanadium, niobium, zirconium, and gallium. The ferromagnetic material is incorporated into the magnetic pigment through processes such as elemental composition, oxide coating, fusion, or optical coating. Alternatively, the magnetic material may be a mixture of one or more paramagnetic materials selected from iron, gold, silver, copper, bismuth, aluminum chloride, and zinc.

8. The magnetic printing method according to claim 1, characterized in that: In step S2, the printing adopts any one of the following printing and coating processes: screen printing, gravure printing, flexographic printing, coating, spraying, and printing. In step S4, the curing device uses any one of UV light source, electron beam EB or thermal energy as the curing energy source. Through curing, the ink binder in the magnetic ink is cross-linked and cured, locking the deflection angle of the magnetic pigment. The curing energy source is a UV light source, which achieves photocuring and setting of the magnetic ink by UV light irradiation; The composite magnetic field generator (30) is any one of a permanent magnet, an electromagnet, or a moving magnetic field generator, and is used to provide a stable working magnetic field.

9. An apparatus for creating a three-dimensional effect using the magnetic printing method according to any one of claims 1 to 8, characterized in that, The device includes a housing (10), a magnetic plate (20), and a composite magnetic field generator (30). The composite magnetic field generator (30) is fixedly installed inside the housing (10), and the magnetic plate (20) is detachably installed on the top surface of the housing (10) and located in the magnetic field output direction of the composite magnetic field generator (30). The housing (10) is used to provide support for the magnetic plate (20) and the substrate. The composite magnetic field generator (30) is used to provide a stable magnetic field. The magnetic plate (20) is used to interfere with the magnetic field to form a magnetic field distribution corresponding to the pattern on its surface.

10. The stereoscopic effect fabrication device according to claim 9, characterized in that: The 3D effect production device can be mounted on any of the printing and coating equipment, such as screen printing machines, gravure printing machines, flexographic printing machines, coating machines, spraying devices, and printing equipment, and can be linked with the printing and coating equipment to achieve continuous production.

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