Anti-counterfeiting element, anti-counterfeiting element manufacturing apparatus and method, readable storage medium

Abstract

The application provides a kind of anti-counterfeiting element, anti-counterfeiting element manufacturing equipment and method, readable storage medium, anti-counterfeiting element manufacturing equipment includes: paper conveying device, paper conveying device is used to drive paper substrate moves in paper substrate conveying direction;Substrate applies varnish device, for applying varnish in the preset area of paper substrate;Photocuring device, for curing varnish, so that paper substrate and photocured varnish form anti-counterfeiting element together, the curing mode of photocuring device includes direct irradiation mode or reflection projection mode;Unsolidified varnish removal device, for removing unsolidified varnish;Paper collecting device, for collecting anti-counterfeiting element;Unsolidified varnish removal device includes: drying device, for removing volatile unsolidified varnish;Cold trap device, for recycling volatile varnish.The application can form variable, multi-gray scale visual effect of anti-counterfeiting graphics or different light transmittance color anti-counterfeiting graphics on the surface of paper.

Description

[0001] This application is a divisional application of Chinese patent application filed on June 22, 2022, with application number “202210711628.7” and invention title “Anti-counterfeiting element, anti-counterfeiting element manufacturing equipment and method, readable storage medium”. Technical Field

[0002] This application relates to the technical field of anti-counterfeiting products, and more specifically, to an anti-counterfeiting element, an anti-counterfeiting element manufacturing equipment, an anti-counterfeiting element manufacturing method, and a readable storage medium. Background Technology

[0003] In paper-based anti-counterfeiting technologies, anti-counterfeiting paper is obtained by applying a photosensitive material to a paper substrate and writing and curing variable and / or non-variable anti-counterfeiting information into the area where the photosensitive material is applied. However, the display effect of this anti-counterfeiting paper only involves a black-and-white effect. The photocuring method is transmissive, which raises concerns about heat absorption and lifespan of the liquid crystal panel. Existing technologies have limitations due to their relatively low energy transmission. Summary of the Invention

[0004] This application aims to solve at least one of the aforementioned technical problems.

[0005] Therefore, the primary objective of this application is to provide an anti-counterfeiting component manufacturing device.

[0006] The second objective of this application is to provide a method for manufacturing anti-counterfeiting components.

[0007] The third objective of this application is to provide an anti-counterfeiting element.

[0008] The fourth objective of this application is to provide an anti-counterfeiting component manufacturing device.

[0009] The fifth objective of this application is to provide a readable storage medium.

[0010] To achieve the first objective of this application, the first aspect of the present invention provides an anti-counterfeiting element manufacturing apparatus, comprising: a paper conveying device for moving a paper substrate in a paper substrate conveying direction; a substrate varnishing device for applying varnish to a predetermined area of ​​the paper substrate; a photocuring device for curing the varnish on the paper substrate, so that the paper substrate and the photocured varnish together form an anti-counterfeiting element, wherein the curing method of the photocuring device includes direct irradiation or reflective projection; an uncured varnish removal device for removing uncured varnish; and a paper collection device for collecting the anti-counterfeiting element; wherein the substrate varnishing device, the photocuring device, the uncured varnish removal device, and the paper collection device are arranged sequentially in the paper substrate conveying direction; wherein the uncured varnish removal device comprises: a drying device for evaporating and removing the uncured varnish; and a cold trap device for recovering the evaporated varnish.

[0011] The anti-counterfeiting element manufacturing equipment provided in this application includes a paper conveying device, a substrate varnish application device, a UV curing device, an uncured varnish removal device, and a paper collection device. The paper conveying device sequentially passes the paper substrate through the substrate varnish application device, the UV curing device, the uncured varnish removal device, and the paper collection device to obtain the anti-counterfeiting element. Since the UV curing device cures the anti-counterfeiting element through direct irradiation or reflective projection, compared to curing through a photomask transmission method, the anti-counterfeiting element can have variable, multi-grayscale visual effects of anti-counterfeiting graphics or variable coding information, making it more flexible and capable of creating grayscale effects. The uncured varnish removal device includes a drying device and a cold trap device. By controlling the temperature and vacuum level of the vacuum drying process through the drying device, the evaporation of the uncured varnish can be accelerated, achieving its removal. The evaporated varnish can be recovered in the cold trap device. Vacuum removal of uncured varnish eliminates the impact of paper wetting on paper performance, the impact of drying on paper flatness, and the impact of flattening on paper parameters such as paper thickness and density compared to cleaning. It also facilitates the recycling of uncured varnish, enhances environmental friendliness, and reduces water consumption.

[0012] In addition, the technical solution provided in this application may also have the following additional technical features:

[0013] In some technical solutions, the anti-counterfeiting element manufacturing equipment may optionally include: an optical character recognition device, which is used to recognize existing printed serial number information, inkjet code, barcode, and QR code variable information, which are set on the anti-counterfeiting element; and a data processing system, which is connected to the optical character recognition device and is used to generate variable anti-counterfeiting element processing information and corresponding processing documents based on the information recognized by the optical character recognition device.

[0014] In this technical solution, the anti-counterfeiting component manufacturing equipment also includes an optical character recognition device and a data processing system. The optical character recognition device is used to identify existing printed serial number information, inkjet printing, barcodes, and QR code variable information. The identified printed serial number information, inkjet printing, barcodes, and QR code variable information have a self-verification function to ensure identification accuracy. The optical character recognition device can be installed on the paper feeding plate or on the paper feed roller. Based on the information identified by the optical character recognition device, the data processing system generates corresponding variable anti-counterfeiting component processing information and processing documents. The printing device and the photopolymerization device then perform printing and curing based on the generated variable information.

[0015] In some technical solutions, the anti-counterfeiting component manufacturing equipment may optionally include: an online inspection device, used to inspect the processing quality of the anti-counterfeiting components through a microscope, and after reflecting and identifying all printed serial number information or variable information such as inkjet codes, barcodes, and QR codes, to match the printed variable information with the correctness of the anti-counterfeiting components with variable information; and an offline inspection device, used to conduct random inspections of the completed anti-counterfeiting components and adjust the process parameter settings based on the inspection results.

[0016] In this technical solution, the anti-counterfeiting component manufacturing equipment also includes an online detection device and an offline inspection device. The online detection device is used to inspect the processing quality of the anti-counterfeiting components by reflecting and identifying all printed serial number information or variable information such as inkjet codes, barcodes, and QR codes, and then matching the printed serial number information with the correctness of the variable information on the anti-counterfeiting component. The offline inspection device is used to conduct random checks on the completed anti-counterfeiting components to ensure the accuracy and reliability of the online detection, and to adjust the process parameter settings in a timely manner if necessary.

[0017] In some technical solutions, the paper conveying device may optionally include a paper feeding device and a paper transfer device. The paper feeding device may include a flat paper feeding device or a roll paper unwinding device, and the paper transfer device may be used for transferring the paper substrate.

[0018] In this technical solution, the paper conveying device includes a paper feeding device and a paper transfer device. The paper feeding device includes a sheet paper feeding device or a roll paper unwinding device, which can be used for single sheets or rolls of paper. The paper transfer device is used for transferring the paper substrate.

[0019] In some technical solutions, optionally, the substrate varnishing device includes: a printing device for applying varnish to a paper substrate, wherein the printing method of the printing device includes offset printing, gravure printing, screen printing, letterpress printing, spraying and inkjet printing.

[0020] In this technical solution, the substrate varnish application device includes a printing device. The printing device can apply varnish to the paper substrate by offset printing, gravure printing, screen printing, letterpress printing, spraying, or inkjet printing, preferably coating printing.

[0021] In some technical solutions, the substrate varnish application device may optionally include: a varnish heating device for heating the varnish applied to the paper substrate; and / or a paper activation device for spraying plasma onto the paper substrate to activate it.

[0022] In this technical solution, the substrate varnish application device also includes a varnish heating device and a paper activation device. The varnish heating device heats the varnish applied to the paper substrate during the varnish application process in the printing apparatus, ensuring that the varnish concentration and flowability are within the required range. The paper activation device sprays plasma onto the paper substrate to activate it and accelerate the penetration of the varnish into the interior of the paper substrate.

[0023] In some technical solutions, the curing method of the photocuring device may optionally include one of the following: point light source scanning, line scanning, or surface curing.

[0024] In this technical solution, the curing method of the photocuring device can be point light source scanning, line scanning, or surface curing, to achieve variable anti-counterfeiting graphics.

[0025] In some technical solutions, the drying device may optionally include one of the following: atmospheric pressure drying equipment, vacuum drying equipment, freeze drying equipment, airflow drying equipment, microwave drying equipment, conduction drying equipment, radiation drying equipment, and high frequency drying equipment; the drying device may also include a heated drum, the temperature of which is adjustable, and the heating method of the heated drum may include hot oil heating or electric heating.

[0026] In this technical solution, the drying device includes various drying equipment such as atmospheric pressure drying, vacuum drying, freeze drying, airflow drying, microwave drying, convection drying, conduction drying, radiation drying, infrared drying, and high-frequency drying. The drying device also includes a temperature-adjustable heating drum, which can be heated by hot oil or electrically.

[0027] To achieve the second objective of this application, the second aspect of this application provides a method for manufacturing an anti-counterfeiting element, comprising: applying varnish to at least one preset area of ​​a paper substrate, according to a preset type and a corresponding preset amount of varnish; using a reflective projection method or a direct irradiation method to photocur the varnish in different preset areas according to a preset duration and a preset exposure amount; removing the uncured varnish from the paper substrate to obtain the anti-counterfeiting element; wherein, the preset type applied to different preset areas is the same or different, and the preset type includes any one or a combination of the following: color, transparency, composition; and / or the preset amount of varnish corresponding to the applied preset type is the same or different between different preset areas; and / or the preset duration of photocuring is the same or different for different preset areas; and / or the preset exposure amount of photocuring is the same or different for different preset areas.

[0028] In this technical solution, varnish is first applied to at least one preset area of ​​the paper substrate according to a preset type and corresponding preset amount. Then, a light source is used to photocur the varnish in different preset areas according to a preset duration and preset exposure, forming a variable or non-variable anti-counterfeiting pattern. Finally, the uncured varnish is removed to obtain the anti-counterfeiting element. The photocuring method includes reflective projection or direct irradiation. Compared with transmissive photocuring, photocuring via reflective projection or direct irradiation allows the anti-counterfeiting element to have variable, multi-grayscale visual effects of anti-counterfeiting graphics or variable coding information, making it more flexible and capable of creating grayscale effects. Different preset areas can be coated with the same or different preset types of varnish, including any one or a combination of color, transparency, and composition. By applying the same or different preset types of varnish, anti-counterfeiting elements with transparent, grayscale, or color visual effects can be obtained. The preset varnish amounts corresponding to the applied preset types can be the same or different for different preset areas. The preset curing durations for different preset areas can be the same or different. Different preset areas can have the same or different preset exposure amounts for photocuring. By applying the same or different preset types and amounts of varnish to the varnish in different preset areas and photocuring them according to preset durations and exposure amounts, anti-counterfeiting elements with multiple gray levels or different color depths can be obtained.

[0029] In addition, the technical solution provided in this application may also have the following additional technical features:

[0030] In some technical solutions, the uncured varnish on the paper substrate may be removed, specifically including: cleaning the paper substrate, applying targeted spray cleaning and / or spray cleaning and / or roller squeezing cleaning to the uncured varnish from the front side of the paper substrate, and absorbing the uncured varnish from the back side of the paper substrate; drying and flattening the paper substrate.

[0031] In this technical solution, the paper substrate is cleaned by applying uncured varnish to the front of the substrate using a targeted spray cleaning, spray cleaning, or roller pressing cleaning, while simultaneously removing the uncured varnish from the back of the substrate. The paper substrate is then dried and flattened to obtain the anti-counterfeiting element. Specifically, a suction plate can be installed on the back of the paper substrate to apply suction, accelerating the water flow and improving cleaning efficiency and effectiveness.

[0032] In some technical solutions, the uncured varnish on the paper substrate can be optionally removed, specifically including: vacuum drying the paper substrate, controlling the temperature and vacuum level of the vacuum drying to accelerate the evaporation of the uncured varnish and achieve the removal of the uncured varnish; and recovering the evaporated varnish in a cold trap device.

[0033] In this technical solution, vacuum drying of the paper substrate, by controlling the temperature and vacuum level, accelerates the evaporation of uncured varnish, thus achieving its removal. The evaporated varnish can be recovered using a cold trap device. Compared to washing, vacuum removal of uncured varnish eliminates the impact of paper wetting on paper properties, the impact of drying on paper flatness, and the impact of flattening on paper parameters such as thickness and density. It also facilitates the recovery of uncured varnish, enhances environmental friendliness, and reduces water consumption.

[0034] In some technical solutions, the paper substrate may optionally be dried and flattened, specifically including: localized energy irradiation drying of the paper substrate; and / or localized positioning hot air drying of the paper substrate.

[0035] In this technical solution, the paper substrate can be dried by localized energy irradiation. Alternatively, the paper substrate can be dried by localized hot air application.

[0036] In some technical solutions, the cleaning method may optionally include high-pressure water cleaning or ultrasonic cleaning; and / or the cleaning method may include magnetic cleaning or blade cleaning.

[0037] In this technical solution, the cleaning method can be high-pressure water cleaning or ultrasonic cleaning. Alternatively, the anti-counterfeiting element can be cleaned by immersing it in a magnetic or blade-like manner.

[0038] In some technical solutions, the varnish may optionally be applied by any one or a combination of the following: digital inkjet printing, quantitative blade coating, multiple blade coating, coating and spraying.

[0039] In this technical solution, the varnish can be applied by one or a combination of digital inkjet printing, quantitative blade coating, multiple blade coating, application, and spraying. Digital inkjet printing, quantitative blade coating, application, or spraying, or multiple blade coating, application, or spraying are preferred.

[0040] To achieve the third objective of this application, the technical solution of the third aspect of this application provides an anti-counterfeiting element, which is manufactured using the anti-counterfeiting element manufacturing method of any of the technical solutions in the second aspect above. Therefore, it has all the technical effects of any of the technical solutions in the second aspect above, and will not be repeated here.

[0041] To achieve the fourth objective of this application, the technical solution of the fourth aspect of this application provides an anti-counterfeiting element manufacturing apparatus, including: a memory and a processor, wherein the memory stores a program or instructions that can be run on the processor, and when the processor executes the program or instructions, it implements the steps of the anti-counterfeiting element manufacturing method of any one of the technical solutions of the second aspect, and thus has the technical effects of any of the technical solutions of the second aspect, which will not be elaborated here.

[0042] To achieve the fifth objective of this application, the technical solution of the fifth aspect of this application provides a readable storage medium storing a program or instructions thereon. When the program or instructions are executed by a processor, they implement the steps of the anti-counterfeiting element manufacturing method of any one of the technical solutions of the second aspect, and thus have the technical effects of any of the technical solutions of the second aspect, which will not be repeated here.

[0043] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0044] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0045] Figure 1 This is a schematic diagram of the structure of an anti-counterfeiting component manufacturing equipment according to an embodiment of this application;

[0046] Figure 2 This is a schematic diagram of the structure of an anti-counterfeiting element manufacturing equipment according to another embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the structure of an anti-counterfeiting element manufacturing equipment according to another embodiment of this application;

[0048] Figure 4 This is a schematic block diagram of an anti-counterfeiting component manufacturing equipment according to one embodiment of this application;

[0049] Figure 5 This is a flowchart illustrating the steps of a method for manufacturing an anti-counterfeiting element according to an embodiment of this application;

[0050] Figure 6 This is a flowchart illustrating the steps of a method for manufacturing an anti-counterfeiting element according to an embodiment of this application;

[0051] Figure 7 This is a flowchart illustrating the steps of a method for manufacturing an anti-counterfeiting element according to an embodiment of this application;

[0052] Figure 8 This is a schematic block diagram of the structure of an anti-counterfeiting element manufacturing equipment according to another embodiment of this application;

[0053] Figure 9 This is a cross-sectional structural schematic diagram of a cold trap device according to an embodiment of this application.

[0054] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0055] 10: Anti-counterfeiting component manufacturing equipment; 110: Paper conveying device; 120: Substrate varnish application device; 130: UV curing device; 140: Cleaning and recycling device; 150: Drying device; 160: Flattening device; 170: Paper receiving device; 180: Optical character recognition device; 190: Data processing system; 200: Online detection device; 210: Offline inspection device; 230: Cold trap device; 300: Memory; 400: Processor. Detailed Implementation

[0056] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0057] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0058] The following reference Figures 1 to 9 This application describes anti-counterfeiting elements, anti-counterfeiting element manufacturing equipment and methods, and readable storage media according to some embodiments.

[0059] like Figure 1 , Figure 4 and Figure 9 As shown, an embodiment of the first aspect of this application provides an anti-counterfeiting element manufacturing apparatus 10, including a paper conveying device 110, a substrate varnishing device 120, a light curing device 130, an uncured varnish removal device, and a paper receiving device 170. Specifically, the paper conveying device 110 is used to move the paper substrate in the paper substrate conveying direction. The substrate varnishing device 120 is used to apply varnish to a predetermined area of ​​the paper substrate. The light curing device 130 is used to cure the varnish on the paper substrate, so that the paper substrate and the light-cured varnish together form an anti-counterfeiting element. The curing method of the light curing device 130 includes direct irradiation or reflective projection. The uncured varnish removal device is used to remove uncured varnish. The paper receiving device 170 is used to collect the anti-counterfeiting element. The substrate varnishing device 120, the light curing device 130, the uncured varnish removal device, and the paper receiving device 170 are arranged sequentially in the paper substrate conveying direction. The uncured varnish removal device includes a drying device 150 and a cold trap device 230. The drying device 150 is used to evaporate and remove uncured varnish. The cold trap device 230 is used to recover the evaporated varnish.

[0060] The anti-counterfeiting element manufacturing equipment 10 provided in this embodiment includes a paper conveying device 110, a substrate varnish application device 120, a light curing device 130, an uncured varnish removal device, and a paper collection device 170. The paper substrate is sequentially passed through the substrate varnish application device 120, the light curing device 130, the uncured varnish removal device, and the paper collection device 170 via the paper conveying device 110 to obtain the anti-counterfeiting element. Since the light curing device 130 cures the anti-counterfeiting element through direct irradiation or reflective projection, compared to curing through a mask transmission method, the anti-counterfeiting element can have variable, multi-grayscale visual effects of anti-counterfeiting graphics or variable coding information, making it more flexible and capable of creating grayscale effects. The uncured varnish removal device includes a drying device 150 and a cold trap device 230. The drying device 150 includes a vacuum drying device, which controls the temperature and vacuum level of the vacuum drying process to accelerate the evaporation of the uncured varnish and remove it. The evaporated varnish can be recovered in the cold trap device 230. Vacuum removal of uncured varnish eliminates the impact of paper wetting on paper performance, the impact of drying on paper flatness, and the impact of flattening on paper parameters such as paper thickness and density compared to cleaning. It also facilitates the recycling of uncured varnish, enhances environmental friendliness, and reduces water consumption.

[0061] The curing method of the photocuring device 130 can be point light source scanning, line scanning, or surface curing to achieve variable anti-counterfeiting graphics and text. The photocuring device 130 can adopt DLP, laser, or spatial light modulator methods to form variable anti-counterfeiting graphics and text or variable coded information with multi-grayscale visual effects.

[0062] Furthermore, the anti-counterfeiting component manufacturing equipment 10 also includes an optical character recognition device 180 and a data processing system 190. The optical character recognition device 180 is used to recognize existing printed serial number information, inkjet codes, barcodes, and QR code variable information. The recognized printed serial number information, inkjet codes, barcodes, and QR code variable information have a self-verification function to ensure the accuracy of recognition. The optical character recognition device 180 can be installed on the paper feeding plate or on the paper feed roller. Based on the information recognized by the optical character recognition device 180, the data processing system 190 generates corresponding variable anti-counterfeiting component processing information and processing documents. The printing device and the photocuring device 130 then perform printing and curing based on the generated variable information.

[0063] In some embodiments, the anti-counterfeiting component manufacturing equipment 10 may optionally include an online inspection device 200 and an offline inspection device 210. The online inspection device 200 is used to inspect the processing quality of the anti-counterfeiting components by reflection, and after reflecting and identifying all printed serial number information or variable information such as inkjet codes, barcodes, and QR codes, it matches the printed serial number information with the correctness of the variable information of the anti-counterfeiting component. The offline inspection device 210 is used to perform random checks on the completed anti-counterfeiting components to ensure the correctness and reliability of the online inspection, and to adjust the process parameter settings in a timely manner if necessary.

[0064] In some embodiments, the paper conveying device 110 optionally includes a paper feeding device and a paper transfer device. The paper feeding device includes a sheet paper feeding device or a roll paper unwinding device, which can be used for single sheets or rolls of paper. The paper transfer device is used for transferring paper substrates.

[0065] In some embodiments, the substrate varnish application apparatus 120 optionally includes a printing apparatus. The printing apparatus can apply the varnish to the paper substrate by offset printing, gravure printing, screen printing, letterpress printing, coating printing, spraying, or inkjet printing, preferably coating printing. The substrate varnish application apparatus 120 also includes a varnish heating apparatus and a paper activation apparatus. The varnish heating apparatus is used to heat the varnish applied to the paper substrate during the varnish application process of the printing apparatus, ensuring that the concentration and flowability of the varnish are within the required range. The paper activation apparatus is used to spray plasma onto the paper substrate to activate the paper substrate and accelerate the penetration of the varnish into the interior of the paper substrate.

[0066] like Figure 2 and Figure 3 As shown, in some embodiments, optionally, the uncured varnish removal device includes a cleaning and recycling device 140, a drying device 150, and a flattening device 160. The cleaning and recycling device 140 is used to clean the uncured varnish and recycle the cleaning agent. The cleaning and recycling device 140 includes a roller assembly that can absorb the uncured varnish, improving cleaning capability. The drying device 150 is used for localized drying, and the drying device 150 dries the anti-counterfeiting element using energy irradiation or targeted hot air, infrared, microwave, or airflow. Drying is stopped and flattening is performed when the element is 80%–90% dry. The drying can occur during paper feeding or on the roller, preferably on the roller. The flattening device 160 is used to flatten the dried anti-counterfeiting element. The flattening device 160 includes a flattening roller, which can have a certain temperature.

[0067] Furthermore, the drying apparatus 150 includes drying equipment such as atmospheric pressure drying, vacuum drying, freeze drying, airflow drying, microwave drying, convection drying, conduction drying, radiation drying, infrared drying, and high-frequency drying. The drying apparatus 150 also includes a temperature-adjustable heating drum, which can be heated by hot oil or by electricity.

[0068] like Figure 5 As shown, an embodiment of the second aspect of this application provides a method for manufacturing an anti-counterfeiting element, comprising:

[0069] Step S102: Apply varnish to at least one preset area of ​​the paper substrate, according to the preset type and the corresponding preset amount of varnish;

[0070] Step S104: Using either reflective projection or direct irradiation, light-curing is performed on the varnish in different preset areas according to preset duration and preset exposure.

[0071] Step S106: Remove the uncured varnish from the paper substrate to obtain the anti-counterfeiting element;

[0072] Among them, the preset types applied to different preset areas may be the same or different, and the preset types include any one or a combination of the following: color, transparency, composition; and / or the preset varnish amount corresponding to the applied preset type may be the same or different between different preset areas; and / or the preset curing time for different preset areas may be the same or different; and / or the preset exposure amount for different preset areas may be the same or different.

[0073] In this embodiment, varnish is first applied to at least one preset area of ​​the paper substrate according to a preset type and corresponding preset amount. Then, a light source is used to photocur the varnish in different preset areas according to a preset duration and preset exposure, forming a variable or non-variable anti-counterfeiting pattern. Finally, the uncured varnish is washed off, and the paper substrate is dried and flattened to obtain the anti-counterfeiting element. The photocuring method includes reflective projection or direct irradiation. Compared with transmissive photocuring, photocuring via reflective projection or direct irradiation allows the anti-counterfeiting element to have variable, multi-grayscale visual effects of anti-counterfeiting graphics or variable coding information, making it more flexible and capable of creating grayscale effects. Different preset areas can be treated with the same or different preset types of varnish, including any one or a combination of color, transparency, and composition. By applying the same or different preset types of varnish, anti-counterfeiting elements with transparent, grayscale, or color visual effects can be obtained. The preset varnish amounts corresponding to the applied preset types can be the same or different for different preset areas. The preset curing durations for different preset areas can be the same or different. Different preset areas can have the same or different preset exposure amounts for photocuring. By applying the same or different preset types and amounts of varnish to the varnish in different preset areas and photocuring them according to preset durations and exposure amounts, anti-counterfeiting elements with multiple gray levels or different color depths can be obtained.

[0074] In some embodiments, optionally, varnish can be applied to paper by digital inkjet printing, and the printed pattern can be matched with the light-cured pattern, which can be changed or not changed in real time to ensure the precise registration relationship between the printed pattern and the exposure position; different preset quantities can be applied between different preset areas by digital inkjet printing, so that the anti-counterfeiting element is completely placed in the paper or protrudes from the paper, forming a tactile and visual effect; different preset quantities can be applied between different preset areas, and under the same preset time control, patterns with different gray levels can be formed.

[0075] In some embodiments, optionally, varnish can be applied to paper by quantitative scraping, coating, or spraying. When the preset time is the same, a stable and consistent transparent effect can be formed; when the preset time is different, a grayscale pattern can be achieved; and when the varnish can develop color after UV curing, a color change can be formed. Quantitative scraping, coating, or spraying can ensure a stable amount of varnish, and can also uniformly scrape off the varnish after application, ensuring accurate quantitative application of varnish and easily ensuring the UV curing effect.

[0076] In some embodiments, varnish can be applied to paper by multiple scraping, coating, or spraying processes. Different preset amounts of varnish can be applied to different preset areas, and the preset curing times for different preset areas can be the same or different, resulting in visual effects with different grayscale levels.

[0077] like Figure 6 As shown, according to an embodiment of the second aspect of this application, a method for manufacturing an anti-counterfeiting element involves removing uncured varnish from a paper substrate, specifically including:

[0078] Step S202: Clean the paper substrate by spraying and / or spraying and / or roller squeezing the uncured varnish onto the front side of the paper substrate, and suck up the uncured varnish from the back side of the paper substrate.

[0079] Step S204: Dry and flatten the paper substrate.

[0080] In this embodiment, cleaning the paper substrate can be performed by spraying, scrubbing, or roller pressing uncured varnish onto the front side of the paper substrate, and then sucking up the uncured varnish from the back side. The paper substrate is then dried and flattened to obtain the anti-counterfeiting element. Specifically, a suction plate can be installed on the back side of the paper substrate to apply suction, accelerating the water flow and improving cleaning efficiency and effectiveness.

[0081] In some embodiments, the cleaning method may optionally be high-pressure water cleaning or ultrasonic cleaning. Alternatively, the anti-counterfeiting element may be cleaned by immersing it in a magnetic or blade-based method.

[0082] In some embodiments, the paper substrate can be dried by locally applying energy irradiation. Alternatively, the paper substrate can be dried by locally applying hot air.

[0083] like Figure 7 As shown, according to an embodiment of the second aspect of this application, a method for manufacturing an anti-counterfeiting element involves removing uncured varnish from a paper substrate, specifically including:

[0084] Step S302: Vacuum dry the paper substrate, control the temperature and vacuum level of vacuum drying, accelerate the evaporation of uncured varnish, and achieve the removal of uncured varnish;

[0085] Step S304: Recover the evaporated varnish on the cold trap device.

[0086] In this embodiment, vacuum drying of the paper substrate, by controlling the temperature and vacuum level, accelerates the evaporation of uncured varnish, thus achieving its removal. The evaporated varnish can be recovered using a cold trap device. Compared to washing, vacuum removal of uncured varnish eliminates the impact of paper wetting on paper properties, the impact of drying on paper flatness, and the impact of flattening on paper parameters such as thickness and density. It also facilitates the recovery of uncured varnish, enhances environmental friendliness, and reduces water consumption.

[0087] The third aspect of this application provides an anti-counterfeiting element, which is manufactured using the anti-counterfeiting element manufacturing method of any embodiment of the second aspect described above. Therefore, it has all the technical effects of any embodiment of the second aspect described above, and will not be repeated here.

[0088] like Figure 8 As shown, an embodiment of the fourth aspect of this application provides an anti-counterfeiting element manufacturing apparatus 10, including a memory 300 and a processor 400. The memory 300 stores a program or instructions that can be run on the processor 400. When the processor 400 executes the program or instructions, it implements the steps of the anti-counterfeiting element manufacturing method of any one of the embodiments of the second aspect, and thus has the technical effects of any embodiment of the second aspect, which will not be repeated here.

[0089] An embodiment of the fifth aspect of this application provides a readable storage medium having a program or instructions stored thereon. When the program or instructions are executed by a processor, they implement the steps of the anti-counterfeiting element manufacturing method of any one of the embodiments of the second aspect, and thus have the technical effects of any embodiment of the second aspect described above, which will not be repeated here.

[0090] The anti-counterfeiting element according to a specific embodiment of this application is manufactured using an anti-counterfeiting element manufacturing method. More specifically, it relates to a photocurable transparent varnish, which is photocured after penetrating into the paper substrate. The photocuring is performed using DLP, laser, or spatial light modulator methods, which can form variable anti-counterfeiting graphics or variable coding information, or color anti-counterfeiting graphics or graphics with different light transmittance, with multiple grayscale levels of visual effects. It is not limited to implementation in the papermaking or printing stages. It includes a complete process flow and equipment layout. It can also be implemented on roll paper.

[0091] The main processes include applying varnish to the substrate (which can be heated), UV curing, cleaning, drying, and flattening. Specifically, the methods for applying varnish to the substrate include digital inkjet printing, quantitative scraping or coating or spraying, and multiple scraping or coating or spraying.

[0092] In digital inkjet printing, the printed pattern is matched with the photocured pattern, which can be changed or not changed in real time to ensure the precise registration relationship between the printed pattern and the exposure position. Digital inkjet printing can apply different amounts of varnish to different pattern positions, which can make the anti-counterfeiting element completely placed in the paper or protrude from the paper to form a tactile and visual effect. Applying different amounts of varnish to different pattern positions can form patterns with different gray levels under the same exposure control.

[0093] In quantitative scraping, coating, or spraying, applying varnish by quantitative scraping, coating, or spraying can create a stable and consistent transparent effect under the same exposure; grayscale patterns can be achieved under different exposures; and color changes can be formed if the varnish can develop color after UV curing. Quantitative scraping, coating, or spraying can ensure a stable amount of varnish and allows for uniform scraping after application, ensuring accurate quantitative application of varnish and facilitating UV curing.

[0094] In multiple coats, applications, or sprays, different amounts of varnish applied to different locations, under the same or different exposure levels, create visual effects with varying grayscale. More specifically, it allows control over the grayscale effects created on different points, lines, surfaces, or different parts of an element.

[0095] In digital inkjet printing, squeegee coating, coating or spraying, a varnish heating device can be installed to ensure that the concentration and flowability of the varnish are within the required range.

[0096] In photopolymerization equipment and processes, the equipment utilizes DLP, laser, and spatial light modulators to create variable anti-counterfeiting graphics or variable coded information with multi-grayscale visual effects, rather than a mask. This offers greater flexibility and the ability to achieve grayscale effects. In photopolymerization, the light source or light output can be single-point, multi-point, single-area, or multi-area, enabling variable anti-counterfeiting graphics. The exposure intensity and time of partial or complete photopolymerization are changed to control the exposure amount. Under different exposure amounts, anti-counterfeiting patterns of the same thickness or amount of varnish are cured, forming grayscale patterns. The exposure time for different points, lines, or surfaces can be controlled to create different grayscale levels and effects.

[0097] The cleaning process is a precise, targeted cleaning method using spray / spray cleaning fluid. Specifically, the fluid is applied to the upper part of the uncured area, with a suction plate below to apply suction, accelerating the water flow and improving cleaning efficiency and effectiveness. Cleaning methods can include high-pressure water cleaning or ultrasonic cleaning. Alternatively, the anti-counterfeiting components can be immersed and cleaned using magnetic or blade-based methods. Heating during cleaning facilitates the removal of uncured varnish from the substrate. Varnish cleaning specifically involves using solvents and cleaning agents. Solvents include one or a combination of the following: water, aqueous solutions containing surfactants, acidic aqueous solutions, alkaline aqueous solutions, and organic solvents. Cleaning agents include one or a combination of the following: pure water, anhydrous ethanol, and acetone.

[0098] When the paper is about 80-90% dry, drying is stopped and the paper is flattened. The drying process can take place during paper transfer or on the rollers. Flattening on the rollers is preferred.

[0099] The paper receiving device is used to collect paper and can separate good and bad products into compartments based on quality inspection information.

[0100] Furthermore, the solidification software can process the original grayscale image to create a grayscale anti-counterfeiting pattern. The solidified anti-counterfeiting pattern contains variable information, including serial numbers, QR codes, and various code formats; the pattern itself can be customized. It can be applied to passports, combined with facial images, etc.

[0101] In summary, the beneficial effects of this embodiment are that it can form variable anti-counterfeiting graphics or variable coding information or color anti-counterfeiting graphics or different light transmittance on the paper surface, rather than a mask, which is more flexible and can form grayscale effects.

[0102] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0103] In the description of this application, it should be understood that the terms "upper", "lower", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0104] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0105] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for manufacturing anti-counterfeiting components, characterized in that, include: A paper conveying device (110) is used to drive a paper substrate to move in the paper substrate conveying direction; A substrate varnishing device (120) is used to apply varnish to a predetermined area of ​​the paper substrate; A photocuring device (130) is used to cure the varnish on the paper substrate, so that the paper substrate and the photocured varnish together form an anti-counterfeiting element. The curing method of the photocuring device (130) includes direct irradiation or reflective projection. Uncured varnish removal device, used to remove uncured varnish; A paper receiving device (170) is used to collect the anti-counterfeiting element; The substrate varnish application device (120), the photocuring device (130), the uncured varnish removal device, and the paper collection device (170) are arranged sequentially in the paper substrate conveying direction; The uncured varnish removal device includes: A drying device (150) is used to evaporate and remove uncured varnish; A cold trap device (230) is used to recover evaporated varnish; The anti-counterfeiting component manufacturing equipment also includes: An optical character recognition device (180) is used to recognize existing printed serial number information, inkjet code, barcode, and QR code variable information, wherein the printed serial number, inkjet code, barcode, and QR code variable information are disposed on the anti-counterfeiting element; A data processing system (190) is connected to the optical character recognition device (180). The data processing system (190) is used to generate variable anti-counterfeiting element processing information and corresponding processing documents based on the information recognized by the optical character recognition device (180).

2. The anti-counterfeiting component manufacturing equipment according to claim 1, characterized in that, The anti-counterfeiting component manufacturing equipment also includes: The online inspection device (200) is used to inspect the processing quality of the anti-counterfeiting element through a perspective view. After reflecting and identifying all the printed serial number information or the inkjet code, the barcode, and the QR code variable information, it matches the printed variable information with the correctness of the anti-counterfeiting element with variable information. The offline inspection device (210) is used to conduct random inspections on the completed anti-counterfeiting components and adjust the process parameter settings according to the inspection results.

3. The anti-counterfeiting component manufacturing equipment according to claim 1, characterized in that, The paper conveying device (110) includes a paper feeding device and a paper transfer device. The paper feeding device includes a flat paper feeding device or a roll paper unwinding device, and the paper transfer device is used for transferring paper substrate.

4. The anti-counterfeiting component manufacturing equipment according to claim 1, characterized in that, The substrate varnish application device includes: A printing apparatus for applying varnish to the paper substrate, wherein the printing method of the printing apparatus includes offset printing, gravure printing, screen printing, letterpress printing, spraying, and inkjet printing.

5. The anti-counterfeiting component manufacturing equipment according to claim 4, characterized in that, The substrate varnish application device further includes: A varnish heating device for heating the varnish applied to the paper substrate; and / or A paper activation device is used to spray plasma onto the paper substrate to activate it.

6. The anti-counterfeiting component manufacturing equipment according to claim 1, characterized in that, The curing method of the photocuring device (130) includes one of the following: point light source scanning, line scanning, and surface curing.

7. The anti-counterfeiting component manufacturing equipment according to claim 1, characterized in that, The drying apparatus (150) includes one of the following: atmospheric pressure drying equipment, vacuum drying equipment, vacuum drying equipment, freeze drying equipment, airflow drying equipment, microwave drying equipment, conduction drying equipment, radiation drying equipment, and high frequency drying equipment; The drying device (150) also includes a heating drum, the temperature of which is adjustable, and the heating method of which includes hot oil heating or electric heating.

8. A method for manufacturing an anti-counterfeiting component, characterized in that, The manufacturing method, applied to the anti-counterfeiting component manufacturing equipment according to any one of claims 1 to 7, comprises: In at least one preset area of ​​the paper substrate, varnish is applied according to the preset type and the corresponding preset amount of varnish; Using either reflective projection or direct irradiation, the varnish in different preset areas is photocured according to preset duration and preset exposure. Uncured varnish on the paper substrate is removed to obtain anti-counterfeiting elements; Among these, the applied preset types may be the same or different between different preset areas, and the preset types include any one or a combination of the following: color, transparency, composition; and / or the preset varnish amounts corresponding to the applied preset types may be the same or different between different preset areas; and / or the preset curing times for different preset areas may be the same or different; and / or Different preset areas may have the same or different preset exposure amounts for photocuring.

9. The method for manufacturing anti-counterfeiting components according to claim 8, characterized in that, The removal of uncured varnish from the paper substrate specifically includes: The paper substrate is cleaned by spraying and / or washing and / or squeezing the uncured varnish from the front side of the paper substrate, and the uncured varnish is sucked up from the back side of the paper substrate. The paper substrate is dried and flattened.

10. The method for manufacturing anti-counterfeiting components according to claim 8, characterized in that, The removal of uncured varnish from the paper substrate specifically includes: Vacuum drying of the paper substrate, controlling the temperature and vacuum level of vacuum drying, accelerates the evaporation of uncured varnish, and achieves the removal of uncured varnish; The evaporated varnish is recovered in the cold trap device.

11. The method for manufacturing anti-counterfeiting components according to claim 9, characterized in that, The drying and flattening of the paper substrate specifically includes: The paper substrate is dried by localized energy irradiation; and / or The paper substrate is locally positioned and dried with hot air.

12. The method for manufacturing anti-counterfeiting components according to claim 9, characterized in that, The cleaning methods include high-pressure water cleaning or ultrasonic cleaning; and / or The cleaning methods include magnetic cleaning or blade cleaning.

13. The method for manufacturing anti-counterfeiting components according to claim 8, characterized in that, The method of applying the varnish includes any one or a combination of the following: digital inkjet printing, quantitative scraping, multiple scraping, and spraying.

14. An anti-counterfeiting element, characterized in that, It is manufactured using the anti-counterfeiting element manufacturing method as described in any one of claims 8 to 13.

15. A device for manufacturing anti-counterfeiting components, characterized in that, include: A memory (300) and a processor (400), wherein the memory (300) stores a program or instructions executable on the processor (400), and the processor (400) executes the program or instructions to implement the steps of the anti-counterfeiting element manufacturing method as described in any one of claims 8 to 13.

16. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or the instructions are executed by the processor, the steps of the method for manufacturing anti-counterfeiting elements as described in any one of claims 8 to 13 are implemented.

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