Inkjet printing control method and system for product traceability and anti-counterfeiting

Abstract

The embodiment of the application provides a kind of for product traceability anti-counterfeiting containing fiber ink printing control method, system, computer equipment and just storage medium, by adding fiber silk in printing ink, form unique containing fiber ink, fiber silk breaks through the surface tension of ink, make the edge feature of printed character pattern more obvious and strong randomness.Formula ratio of ink and fiber silk is dynamically adjusted by mathematical model, balance the edge randomness and clarity of the character pattern printed by the containing fiber ink, make the character edge form significant and unique anti-counterfeiting mark, while ensuring that the text information is clear and readable, solve the contradiction between anti-counterfeiting feature and readability.The character pattern formed by printing can record product information, and can also be used as product traceability information, without additionally increasing traceability code, the character pattern will not change greatly with the change of product, can be applied to most kinds of products, has very high industrial application value.

Description

Technical Field

[0001] This application belongs to the field of product traceability and anti-counterfeiting technology, specifically relating to a fiber-containing ink printing control method and system for product traceability and anti-counterfeiting, a computer-readable storage medium, and a computer device. Background Technology

[0002] Product traceability and anti-counterfeiting technology is usually based on the rule of one item, one code. That is, the traceability and anti-counterfeiting system assigns each product a unique product identification code. This product identification code is converted into a QR code or digital code and then printed on the product or its packaging using a printing device.

[0003] However, the inkjet codes on such products or their packaging are easily copied, affecting the security of traceability and anti-counterfeiting systems. To address this, some publicly available technologies have proposed solutions, such as Chinese patent CN116543185A, which discloses a method for anti-counterfeiting identification and traceability of Pu'er tea cake cores. This method identifies the texture image features of the tea cake core, encodes the feature image, uploads it to a cloud server, and then compares and verifies the image collected by the customer with the feature image in the cloud server to obtain the Pu'er tea anti-counterfeiting identification result. This patented method utilizes the characteristic that the texture of the Pu'er tea cake core is randomly generated and unique during the production process. Using the texture of the tea cake core itself as the unique identifier of the product, it can solve some of the problem of easily copied inkjet codes. However, the above method also has drawbacks: the surface texture of the product itself is prone to change over time, and the packaging, transportation, and sales processes can all affect the surface texture of the product. This traceability information is difficult to maintain stably on the product for a long time, which will lead to the failure of traceability and anti-counterfeiting verification; in addition, not all types of products have obvious irregular textures on their surfaces, so this method cannot be applied to all products and is unlikely to be used in actual industry. Summary of the Invention

[0004] Based on this, the purpose of this application is to provide a fiber-containing ink printing control method for product traceability and anti-counterfeiting, which can form a stable and highly distinctive random pattern on the surface of the product or product packaging as product traceability and anti-counterfeiting information, applicable to a one-item-one-code traceability and anti-counterfeiting system, and improve the security of product traceability and anti-counterfeiting.

[0005] Embodiments of this application provide a fiber-containing ink printing control method for product traceability and anti-counterfeiting, comprising the following steps:

[0006] Obtain ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern; Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, the first target sub-function is obtained with the volume ratio of fiber filament to ink mixture as the variable. Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset character clarity loss function model, the second objective sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable. Based on the first target sub-function and the second target sub-function, as well as the preset satisfaction function operation model, the target satisfaction function of the target character pattern is obtained; Based on the target satisfaction function, obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is highest; Based on the volume ratio of fiber filaments to ink mixed when the satisfaction level of the target character pattern is highest, the mixing ratio of fiber filaments and ink in the printing device is controlled. According to the target character pattern, the mixed fiber-containing ink is printed onto the product or product packaging through the corresponding printhead.

[0007] This application incorporates fiber filaments into printing ink, creating a unique fiber-containing ink. During printing, the fiber filaments overcome the surface tension of the ink, piercing its surface and resulting in more pronounced and highly randomized edge patterns. By dynamically adjusting the ink-to-fiber ratio using a mathematical model, the randomness and clarity of the printed character patterns are balanced, creating distinctive and unique anti-counterfeiting marks while ensuring clear and legible text information, thus resolving the conflict between anti-counterfeiting features and readability.

[0008] Based on the ink property parameters, fiber property parameters, and printing parameters of the target character pattern, a first objective sub-function is constructed using a preset edge randomness saliency function model to characterize the edge randomness saliency of the target character pattern printed on the product or product packaging. Based on the ink property parameters, fiber property parameters, printing parameters of the target character pattern, and printhead performance parameters, a second objective sub-function is constructed using a preset character clarity loss function model to characterize the character clarity of the target character pattern printed on the product or product packaging. Then, using the first and second objective sub-functions, a target satisfaction function for obtaining the target character pattern is constructed. Since both the first and second objective sub-functions use the volume ratio of the fiber-ink mixture as a variable, the volume ratio of the fiber-ink mixture corresponding to the highest satisfaction level of the target character pattern can be obtained according to this target satisfaction function. This controls the mixing ratio of fiber-ink in the printing equipment, using the mixed fiber-containing ink for printing the target character pattern. This technology can create stable character patterns with distinctly random edges on products or product packaging. These characters will not become excessively blurred due to the addition of fibers to the ink, thus displaying or recording product information. The target character patterns printed on the product or product packaging can both record product information and serve as traceability information, eliminating the need for additional traceability codes. Furthermore, the target character patterns do not change significantly with product variations, making them applicable to most types of products and possessing extremely high industrial application value.

[0009] Based on the same inventive purpose, this application also provides a fiber-containing ink printing control system for product traceability and anti-counterfeiting, which can also form stable and highly distinctive random patterns on the surface of the product or product packaging as product traceability and anti-counterfeiting information. It is suitable for one-item-one-code traceability and anti-counterfeiting systems, thereby improving the security of product traceability and anti-counterfeiting.

[0010] The fiber-containing ink printing control system for product traceability and anti-counterfeiting provided in this application includes: The parameter acquisition module is used to acquire ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern. The first calculation module is used to obtain the first target sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, with the volume ratio of fiber filament to ink mixture as the variable. The second calculation module is used to obtain a second target sub-function based on the ink property parameters, the fiber property parameters, the print head performance parameters, the printing parameters of the target character pattern, and a preset character clarity loss function model, with the volume ratio of the fiber filament to the ink mixture as the variable. The satisfaction calculation module is used to obtain the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, and a preset satisfaction function calculation model. The optimal solution acquisition module is used to obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is maximized, based on the target satisfaction function. The ratio adjustment module is used to control the mixing ratio of fiber filaments and ink in the printing device according to the volume ratio of fiber filaments to ink when the satisfaction of the target character pattern is the highest. The printing control module is used to print the mixed fiber-containing ink onto the product or product packaging through the corresponding print head according to the target character pattern.

[0011] Based on the same inventive purpose, this application also provides a computer-readable storage medium and a computer device, which can also form stable and highly distinctive random patterns on the surface of a product or product packaging as traceability and anti-counterfeiting information for the product, suitable for a one-item-one-code traceability and anti-counterfeiting system, and improve the security of product traceability and anti-counterfeiting.

[0012] This application provides a computer-readable storage medium storing one or more programs, which can be executed by one or more processors to implement the steps of the fiber-containing ink printing control method for product traceability and anti-counterfeiting as described in the above embodiments.

[0013] This application provides a computer device including a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor, when executing the computer program, implements the steps of the fiber-containing ink printing control method for product traceability and anti-counterfeiting as described in the above embodiments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1A flowchart illustrating the steps of a fiber-containing ink printing control method for product traceability and anti-counterfeiting provided in this application embodiment; Figure 2 A flowchart illustrating the steps for controlling the mixing ratio of fibers and ink in a printing device according to an embodiment of this application; Figure 3 A flowchart of the steps of a fiber-containing ink printing control method for product traceability and anti-counterfeiting provided in another embodiment of this application; Figure 4 A schematic diagram of a fiber-containing ink printing control system for product traceability and anti-counterfeiting provided in an embodiment of this application; Figure 5 A schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the protection scope of this application.

[0017] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a” and “the” as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0018] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0020] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, this information should not be limited to these terms, and these terms are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Depending on the context, the word "if" as used in this application can be interpreted as "when," "when," or "in response to determination."

[0021] Example 1 To address the security issues of product traceability and anti-counterfeiting, existing technologies utilize the product's texture as a unique identifier. However, the surface texture of a product is easily affected by time, spoilage, or damage, and may be subtle, making it difficult to maintain stable traceability information over time. This can lead to traceability and anti-counterfeiting failures, limiting its applicability and hindering practical industrial applications.

[0022] Based on this, this application adds fibers to the printing ink to create a unique fiber-containing ink. During the printing process, the fibers overcome the surface tension of the ink, piercing the ink surface and resulting in more distinct and random edge patterns in the printed design. By dynamically adjusting the ink-to-fiber ratio using a mathematical model, the randomness and clarity of the character patterns printed with this fiber-containing ink are balanced, creating a prominent and unique anti-counterfeiting mark on the character edges while ensuring clear and legible text information, thus resolving the contradiction between anti-counterfeiting features and readability.

[0023] Please see Figure 1 The embodiments of this application provide a fiber-containing ink printing control method for product traceability and anti-counterfeiting, including the following steps S101-S107: S101, obtain ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern; The ink property parameters refer to parameters related to the surface tension of the ink, as well as performance parameters related to ink and printing. These parameters are used to record the ease with which the printing ink and fiber filaments can be punctured by the fiber filaments after mixing, and to predict the dynamics of the ink and fiber filaments during the printing process.

[0024] The ink property parameters can be obtained by testing the ink, and the ink property parameters include at least one of the following: the dynamic viscosity of the ink, the adhesion decay constant of the ink, the elastic modulus of the ink, and the surface tension coefficient of the ink.

[0025] The dynamic viscosity of ink refers to its viscosity under dynamic conditions. The higher the dynamic viscosity of ink, the more stable the droplet shape, and the less likely the fibers are to undergo random deformation.

[0026] The adhesion decay constant of ink is used to describe the nonlinear effect of the volume ratio of fiber filament to ink on adhesion.

[0027] The elastic modulus of ink is used to describe the ink's ability to resist breakage. The greater the elastic modulus, the less likely the ink is to break due to the influence of the fibers, and the less likely it is to form satellite droplets.

[0028] The surface tension coefficient of ink is used to describe how difficult it is for ink to be pierced by fiber filaments and how easy it is for it to produce droplet splitting.

[0029] The dynamic viscosity, adhesion decay constant, elastic modulus, and surface tension coefficient of the ink can all be obtained by testing the ink. The relevant testing methods are existing technologies and will not be described in detail in this application.

[0030] To achieve the goal of adding fibers to ink without affecting printing quality, this application preferably uses a shear-thinning water-based ink. As a preferred embodiment, the dynamic viscosity of the ink at room temperature ranges from 4.8 to 5.4 cP. If the viscosity is below 4.8 cP, fiber sedimentation is likely to occur; if it is above 5.4 cP, printing smoothness may be affected. The adhesion decay constant of the ink ranges from 10² m... -3 Up to 10 5 m -3 The elastic modulus of the ink ranges from 0.1 Pa·s to 10 Pa·s, and the surface tension coefficient ranges from 25 mN / m to 35 mN / m.

[0031] The fiber property parameters of the fibers added to the ink can be obtained by inspecting and testing the fibers. The fiber property parameters include at least one of the following: the volume of a single fiber, the average length of the fiber, the average diameter of the fiber, etc.

[0032] The fiber properties of the filaments should be such that they can more easily pierce the ink surface to produce random edge textures, while avoiding clogging of the printhead or affecting the inkjet rate. In one embodiment, the average length of the filaments ranges from 50 μm to 100 μm, the average diameter of the filaments ranges from 4 μm to 8 μm, and the volume of a single filament can be calculated from its average length and average diameter.

[0033] The performance parameters of the printhead include the pulse width of the printhead's drive waveform and the equivalent diameter of the printhead. These performance parameters are generally determined by the performance of the printing equipment. In one embodiment, the equivalent diameter of the printhead ranges from 20 to 50 μm and is greater than twice the average diameter of the fiber filaments to prevent clogging of the printhead by the fiber filaments; the pulse width of the printhead's drive waveform ranges from T... C Approximately 2 / 2, of which T C The ink cavity resonance period is typically 10 μs to 100 μs. The rise time of the printhead drive waveform is generally: rise ≥ T c / 4.

[0034] The printing parameters of the target character pattern include the line width of the target character pattern, which is determined according to the printing requirements of product information on the product or product packaging. Generally, according to the concept of the present invention, the line width of the target character pattern should not be too large or too small. If it is too large, the fibers may not be able to pierce the ink surface, resulting in random edge textures; if it is too small, the ink may detach from the fibers, affecting the printing effect. The general range of the line width of the target character pattern is 0.5–2.0 mm. As an embodiment, the fiber-containing ink provided in this application is only used for printing character patterns used as product traceability information, while other product information can be printed using general ink. Therefore, the user can select a character pattern with a suitable line width as the target character pattern as needed.

[0035] The ink property parameters, the fiber property parameters of the fibers added to the ink, the performance parameters of the print head, and the printing parameters of the target character pattern can all be pre-determined or determined by the user before executing the control method of this application, and then input into the control system, which will be obtained by the controller of the control system when executing this method.

[0036] S102, based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, the first target sub-function is obtained with the volume ratio of fiber filament to ink mixture as the variable; In one embodiment, the ink property parameters include the dynamic viscosity of the ink, the fiber property parameters include the volume of a single fiber, the average length of the fiber, and the average diameter of the fiber, and the printing parameters of the target character pattern include the line width of the target character pattern; then step S102 includes: The dynamic viscosity of the ink, the volume of a single fiber, the average length of the fiber, the average diameter of the fiber, and the line width of the target character pattern are input into the following edge randomness saliency function model to obtain the first target sub-function:

[0037] Where, k s N is the preset significance adjustment coefficient; f N represents the effective number of fibers per unit volume of ink. f =(V f / V ink ) / V f0 , where V f / V ink V is the volume ratio of the fiber to the ink mixture. f0 L is the volume of a single fiber. f d is the average length of the fiber. f W is the average diameter of the fiber. char η is the line width of the target character pattern. ink This refers to the dynamic viscosity of the ink.

[0038] The edge randomness saliency function model is constructed based on the ink's dynamic viscosity, the volume of a single fiber, the average length of the fiber, the average diameter of the fiber, the linewidth of the target character pattern, and the volume ratio of the fiber to ink mixture, taking into account factors related to the fiber piercing the ink surface. The value of the first objective sub-function S is directly proportional to the effective number of fibers per unit volume of ink, the average length of the fibers, and the average diameter of the fibers, and inversely proportional to the linewidth of the target character pattern and the dynamic viscosity of the ink. When the value of the first objective sub-function S is large, the probability of the fiber piercing the ink surface is higher, and the edge randomness saliency of the printed character pattern is stronger. Users can also set the saliency adjustment coefficient as needed to make the value of S meet the required order of magnitude.

[0039] S103, based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset character clarity loss function model, the second target sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable; In one embodiment, the ink property parameters further include the ink adhesion decay constant, and the printhead performance parameters include the equivalent diameter of the printhead; then step S103 includes: By inputting the ink's adhesion attenuation constant, the volume of a single fiber, the average diameter of the fiber, the line width of the target character pattern, and the equivalent diameter of the printhead into the following character sharpness loss function model, the second objective sub-function is obtained:

[0040] Where, k l D is the preset sharpness loss factor. res k is the equivalent diameter of the printhead. adhesion λ is the preset adhesion influence coefficient, and λ is the ink adhesion decay constant.

[0041] The character sharpness loss function model is constructed using the ink adhesion attenuation constant, the volume of a single fiber, the average diameter of the fiber, the linewidth of the target character pattern, the equivalent diameter of the printhead, and the volume ratio of the fiber to the ink mixture. This model quantifies the degree of quality degradation in the printed character pattern caused by the addition of fibers. The smaller the value of the resulting second objective sub-function, the sharper the character, thus creating a mutually balancing constraint with the first objective sub-function.

[0042] In one embodiment, the value of the second objective sub-function should satisfy L≤L tolerance L tolerance It is the maximum permissible threshold for sharpness loss, determined by the quality standards of the printed character pattern.

[0043] S104, Based on the first target sub-function and the second target sub-function, and the preset satisfaction function operation model, obtain the target satisfaction function of the target character pattern; In one embodiment, step S104 includes: By inputting the first and second objective sub-functions into the following satisfaction function operation model, the target satisfaction function of the target character pattern is obtained:

[0044] Among them, S max L is the preset maximum significance of marginal randomness. max This is the preset maximum value for character clarity loss.

[0045] The satisfaction function calculation model balances and optimizes the two conflicting objectives of edge randomness salience and character clarity of the character pattern printed with fiber ink through a mathematical model. When the satisfaction function value of the objective is maximized, the edge randomness salience and character clarity of the printed character pattern are best balanced. At this time, the volume ratio of fiber filament to ink mixture is the optimal ratio of fiber filament to ink mixture.

[0046] S105, Based on the target satisfaction function, obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is highest; Both the first and second objective sub-functions use the volume ratio of the fiber filament to the ink mixture as a variable. To determine the volume ratio of the fiber filament to the ink mixture that yields the highest satisfaction with the target character pattern according to the objective satisfaction function, either the derivative method (solving for the maximum value under unconstrained conditions) or the Lagrange multiplier method (calculating the maximum value under constrained conditions) can be used. When using the Lagrange multiplier method, the constraints on the objective satisfaction function may include at least one of the following: 1. L ≤ L max , where L max 2. V (Preset maximum character clarity loss) f / V ink ≤ρ max , where ρ max The maximum volume ratio determined based on ink adhesion requirements; 3, (V f / V ink ) (L f / d f ) ≤ C nozzle , where C nozzle These are preset constants related to the printhead structure.

[0047] S106, Based on the volume ratio of fiber filament to ink mixture corresponding to the highest satisfaction level of the target character pattern, control the mixing ratio of fiber filament to ink in the printing device. In step S106, according to the volume ratio of the fiber filaments to the ink when the satisfaction of the target character pattern is the highest, a preset volume of ink and a preset volume of fiber filaments are mixed to obtain the fiber-containing ink of this embodiment.

[0048] Please see Figure 2 In one embodiment, step S106 includes: S601. A preset volume of fiber filaments and a preset volume of ink are premixed in a first mixing container to obtain a fiber filament suspension with a first volume ratio. S602. The fiber suspension and ink are mixed again in the second mixing container. The volume of ink input into the second mixing tank is controlled according to the first volume ratio and the volume ratio of fiber to ink when the satisfaction of the target character pattern is the highest, so as to obtain the fiber-containing ink.

[0049] The first mixing container and the second mixing container can be stirring tanks installed in the ink delivery pipeline. The ink delivery pipeline is connected to a quantitative delivery device for fiber filaments through the stirring tanks. The quantitative delivery device controls the input volume of fiber filaments per unit time. A flow control pump is installed in front of the corresponding stirring tank in the ink delivery pipeline. The flow control pump can control the input volume of ink per unit time, thus realizing the adjustment of the volume ratio of ink to fiber filaments.

[0050] In this embodiment, by pre-mixing the fiber filaments and ink at a preset first volume ratio to obtain a fiber filament suspension, and then mixing the fiber filament suspension and ink according to the volume ratio of fiber filaments to ink that corresponds to the highest satisfaction level of the target character pattern, the mixing effect can be more uniform and the actual mixing efficiency is higher.

[0051] S107, According to the target character pattern, the mixed fiber-containing ink is printed onto the product or product packaging through the corresponding print head.

[0052] The target character pattern has a set line width. When the mixed fiber-containing ink with the optimal volume ratio is printed onto the product or product packaging through the corresponding print head, the edges of the printed character pattern can have a random texture formed by the fiber filaments piercing the ink surface. Moreover, the random texture has a high degree of significance without affecting the clarity of the characters.

[0053] This application constructs a first objective sub-function based on the ink property parameters, fiber property parameters, and printing parameters of the target character pattern, using a preset edge randomness saliency function model to characterize the edge randomness saliency of the target character pattern printed on the product or product packaging. Based on the ink property parameters, fiber property parameters, printing parameters of the target character pattern, and printhead performance parameters, a second objective sub-function is constructed using a preset character clarity loss function model to characterize the character clarity of the target character pattern printed on the product or product packaging. Then, using the first and second objective sub-functions, a target satisfaction function for obtaining the target character pattern is constructed. Since both the first and second objective sub-functions use the volume ratio of the fiber-ink mixture as a variable, the volume ratio of the fiber-ink mixture corresponding to the highest satisfaction level of the target character pattern can be obtained according to this target satisfaction function. This controls the mixing ratio of fiber-ink in the printing equipment, using the mixed fiber-containing ink for printing the target character pattern. This technology can create stable character patterns with distinctly random edges on products or product packaging. These characters will not become excessively blurred due to the addition of fibers to the ink, thus displaying or recording product information. The target character patterns printed on the product or product packaging can both record product information and serve as traceability information, eliminating the need for additional traceability codes. Furthermore, the target character patterns do not change significantly with product variations, making them applicable to most types of products and possessing extremely high industrial application value.

[0054] Example 2 Please see Figure 3 The embodiments of this application also provide another method for controlling the printing of fiber-containing inks for product traceability and anti-counterfeiting, including the following steps S201-S207: S201. Obtain ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern. S202. Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, the first target sub-function is obtained with the volume ratio of fiber filament to ink mixture as the variable. S203. Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset character clarity loss function model, a second target sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable. S204. Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset satellite droplet generation probability function model, a third target sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable. S205. Based on the first target sub-function, the second target sub-function, and the third target sub-function, and a preset satisfaction function operation model, obtain the target satisfaction function of the target character pattern; S206. Based on the target satisfaction function, obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is highest; S207. Based on the volume ratio of fiber filament to ink mixture corresponding to the highest satisfaction level of the target character pattern, control the mixing ratio of fiber filament to ink in the printing device. S208. According to the target character pattern, the mixed fiber-containing ink is printed onto the product or product packaging through the corresponding print head.

[0055] The working principle of the fiber-containing ink printing control method for product traceability and anti-counterfeiting in this embodiment is the same as that in Embodiment 1. The main difference between this embodiment and Embodiment 1 is the change of the preset satisfaction function calculation model and the corresponding target satisfaction function. That is, step S104 in Embodiment 1 is extended to S204 and S205. The implementation principle of the remaining steps is the same as that in Embodiment 1. Please refer to the description of Embodiment 1. This embodiment will not repeat it.

[0056] Compared to Example 1, this example further considers the potential for increased satellite droplets during printing due to the damage to the ink surface caused by the addition of fiber filaments, thus affecting the printed character quality. Therefore, a new satellite droplet generation probability function model is introduced to predict the generation probability of satellite droplets and incorporate it into the target satisfaction function to obtain the optimal volume ratio of fiber filaments to ink.

[0057] In this embodiment, the issue of satellite droplets forming more easily during printing is further considered after fibers puncture the ink surface. A satellite droplet generation probability function model is constructed using the ink property parameters, fiber property parameters, printing parameters of the target character pattern, printhead performance parameters, and the volume ratio of the fiber filaments to the ink mixture as variables. Then, combining the first, second, and third objective sub-functions, a target satisfaction function for the target character pattern is constructed. The ink-to-fiber ratio is dynamically adjusted through a mathematical model to balance the edge randomness and clarity of the character pattern printed with fiber-containing ink, further considering reducing the probability of satellite droplet generation, ensuring that the character edges form a significant and unique anti-counterfeiting mark, while ensuring clear and readable text information without excessive interference noise.

[0058] In one embodiment, step S204 includes: The third objective sub-function is obtained by inputting the dynamic viscosity of the ink, the elastic modulus of the ink, the surface tension coefficient of the ink, the volume of a single fiber, the average diameter of the fiber, the line width of the target character pattern, the pulse width of the printhead's driving waveform, and the equivalent diameter of the printhead into the following satellite droplet generation probability function model:

[0059] Where, k p τ is the preset satellite droplet generation coefficient. wave E represents the pulse width of the drive waveform for the printhead. elastic γ is the elastic modulus of the ink. ink is the surface tension coefficient of the ink.

[0060] In this embodiment, the satellite droplet generation probability function model is constructed using the dynamic viscosity of the ink, the elastic modulus of the ink, the surface tension coefficient of the ink, the volume of a single fiber, the average diameter of the fiber, the linewidth of the target character pattern, the pulse width of the printhead's driving waveform, the equivalent diameter of the printhead, and the volume ratio of the fiber-ink mixture as variables. By considering the influence of the fiber and ink properties on the dynamic behavior during the printing process, as well as the printhead's driving waveform and parameters, the volume ratio of the fiber-ink mixture is adjusted to optimize the ink jet stability, minimizing the generation of satellite droplets while maintaining the randomness and clarity of character edges. The larger the value of the third objective sub-function, the higher the probability of satellite droplet generation during the printing process.

[0061] Accordingly, step S205 includes: By inputting the first objective sub-function, the second objective sub-function, and the third objective sub-function into the following satisfaction function operation model, the target satisfaction function of the target character pattern is obtained:

[0062] in, S max L is the preset maximum significance of marginal randomness. max P is the preset maximum character clarity loss; tolerance This is the preset maximum allowable satellite droplet probability threshold.

[0063] In this embodiment, a satellite droplet suppression term is introduced into the satisfaction function calculation model. Through the third objective sub-function, satellite droplet interference is significantly reduced while maintaining the original anti-counterfeiting function and character clarity. When the target satisfaction function value is maximized, the edge randomness of the printed character pattern, character clarity, and the probability of satellite droplet generation are all balanced. At this point, the volume ratio of fiber filaments to ink mixture is the optimal ratio of fiber filaments to ink mixture.

[0064] The following example uses the printing of production date and batch number on the packaging box of high-end liquor to illustrate the fiber-containing ink printing control method of this application for product traceability and anti-counterfeiting. This scenario has high requirements for character clarity (machine readability) and anti-counterfeiting features (uniqueness verification).

[0065] The product packaging material to be printed is: matte white cardstock with a microporous surface.

[0066] The printed content includes the production date (e.g., "2026-02-10") and batch number (e.g., "BT26A01"). This printed content records the product's production date and batch number information, and the edge texture of its character patterns serves as product identification information to identify each product with a unique code.

[0067] Requirements for the target character pattern: line width W char =0.8mm, character height 2.5mm.

[0068] If ordinary ink is used for printing, the pattern is easily copied, the edge texture is not obvious and lacks uniqueness. If fibers are added directly to the ink without using the mathematical model of this application for control and adjustment, it is easy to cause blurred character edges and satellite droplet interference (manifested as tiny ink dots around the text).

[0069] According to the fiber-containing ink printing control method for product traceability and anti-counterfeiting in this application, the ink property parameters, the fiber property parameters of the fibers added to the ink, the performance parameters of the print head, and the printing parameters of the target character pattern are first obtained.

[0070] The ink attribute parameters include: The ink type selected is shear-thinning water-based ink, with a dynamic viscosity η. ink =5.0 cP (25°C). Elastic modification was achieved by adding 1.5% polyethylene glycol (PEG20000) to the ink, increasing its elastic modulus to E. elastic =2.5 Pa·s, to reduce the probability of satellite droplet formation. The surface tension coefficient γ of the ink... ink =28mN / m (good compatibility with fibers).

[0071] Fiber property parameters include: The fiber material is selected from natural cellulose fibers (low cost, easy to disperse). The average length L of the fiber filaments f =100μm (less than 1 / 3 of the nozzle diameter to avoid clogging); average diameter d of the fiber filament f =8μm (the aspect ratio of the fiber filament L) f / d f =12.5). Volume V of a single fiber. f0 Calculated based on the average length and average diameter of the fiber.

[0072] The performance parameters of the printhead include: The equivalent diameter D of the print head res =30μm. The pulse width τ of the printhead's drive waveform. wave =T C / 2=15μs(T) C The resonant period of the ink cavity is measured to be 30 μs. Pulse rise time t rise =8μs≥T c / 4, to ensure stable droplet breakage.

[0073] The printing parameters for the target character pattern include: line width W char =0.8mm.

[0074] The parameters are input into the corresponding edge randomness saliency function model, character clarity loss function model, and satellite droplet generation probability function model to obtain the corresponding first, second, and third objective sub-functions, as well as the objective satisfaction function of the target character pattern. The other variable, V, corresponding to the maximum value of variable Z in the objective satisfaction function, is the volume ratio V of the fiber-to-ink mixture. f / V ink The value of is obtained by (V) f / V ink ) optimal =0.035 (i.e., 3.5% fiber content). Using the aforementioned ink property parameters, the fiber property parameters of the added fibers in the ink, the printhead performance parameters, and the printing parameters of the target character pattern, along with an ink mixing volume ratio of 0.035, a simulation experiment was conducted. The results showed significant randomness in the edge burrs of the character pattern (S=0.85), unique edge texture for each character, a reduction in sharpness loss to 4% (L=0.04), and a reduction in satellite droplets to an average of 2-3 (suppression rate >70%). The edge textures of the corresponding character patterns are entered into the traceability verification database as unique product identification information. After purchase, users can photograph and upload the corresponding character pattern on the product packaging, and the server will compare and verify it against pre-stored data in the traceability verification database.

[0075] When recognizing character patterns printed according to the printing control method of this application, it is necessary to store and compare the feature information of the character patterns. This can be done by storing and comparing the entire character image, and during verification, comparing it with a character image uploaded by the user to obtain a similarity score for verification. Alternatively, image feature extraction can be performed on the character image, such as edge contour feature extraction, followed by storing the relevant feature information for verification. Or, the features of the character pattern can be encoded, and the corresponding feature codes can be stored, etc. In specific implementation, conventional image recognition and verification methods in the art can be used according to the inventive concept of this application, which will not be elaborated upon here.

[0076] Example 3 Based on the same inventive concept, Embodiment 3 of this application also provides a fiber-containing ink printing control system for product traceability and anti-counterfeiting. It can also form stable and highly distinctive random patterns on the surface of the product or product packaging as traceability and anti-counterfeiting information. It is suitable for one-item-one-code traceability and anti-counterfeiting systems, thereby improving the security of product traceability and anti-counterfeiting.

[0077] Please see Figure 4 The fiber-containing ink printing control system 40 for product traceability and anti-counterfeiting provided in this application includes: The parameter acquisition module 401 is used to acquire ink property parameters, fiber property parameters of the fibers added to the ink, print head performance parameters, and printing parameters of the target character pattern. The first calculation module 402 is used to obtain a first target sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and a preset edge randomness saliency function model, with the volume ratio of fiber filaments to ink mixture as the variable. The second calculation module 403 is used to obtain a second target sub-function based on the ink property parameters, the fiber property parameters, the performance parameters of the print head, the printing parameters of the target character pattern, and a preset character clarity loss function model, with the volume ratio of the fiber filament to the ink mixture as the variable. The satisfaction calculation module 404 is used to obtain the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, and a preset satisfaction function calculation model. The optimal solution acquisition module 405 is used to obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is the highest, based on the target satisfaction function. The ratio adjustment module 406 is used to control the mixing ratio of fiber filaments and ink in the printing device according to the volume ratio of fiber filaments and ink mixture corresponding to the highest satisfaction of the target character pattern. The printing control module 407 is used to print the mixed fiber-containing ink onto the product or product packaging through the corresponding print head according to the target character pattern.

[0078] The fiber-containing ink printing control system for product traceability and anti-counterfeiting in this embodiment has a similar solution to the solution described in the above method embodiment. Therefore, for a detailed description of this embodiment, please refer to the description of the fiber-containing ink printing control method for product traceability and anti-counterfeiting in Embodiments 1 / 2 above, which will not be repeated here.

[0079] It should be noted that the fiber-containing ink printing control system for product traceability and anti-counterfeiting provided in this application embodiment is only illustrated by the above-described division of functional modules when executing the printing control method. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. Furthermore, the fiber-containing ink printing control system for product traceability and anti-counterfeiting provided in this application embodiment and the fiber-containing ink printing control method for product traceability and anti-counterfeiting in this application embodiment belong to the same concept, and the implementation process is detailed in the method embodiment.

[0080] Example 4 Embodiment 4 of this application provides a computer device that applies the fiber-containing ink printing control system for product traceability and anti-counterfeiting described in the above embodiments to the computer device. This system can be implemented through software, hardware, or a combination of both. Taking software implementation as an example, as a logical device, it is formed by a processor that reads and executes corresponding computer program instructions from the memory. From a hardware perspective, the computer device may include a processor and a memory, which are interconnected via a data bus or other known methods.

[0081] Please see Figure 5 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Figure 5 As shown, the computer device 300 may include: at least one processor 310, at least one memory 320, at least one display 330, at least one network interface 340, user interface 350, and at least one communication bus 360.

[0082] The communication bus 360 is used to enable communication between these components.

[0083] The user interface 350 may include a display screen and a camera; the user interface 350 may also include standard wired and wireless interfaces.

[0084] The network interface 340 may optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface).

[0085] The processor 310 may include one or more processing cores. The processor 310 connects to various parts within the computer device 300 using various interfaces and lines, and performs various functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 320, and by calling data stored in the memory 320. Optionally, the processor 310 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 310 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also be implemented as a separate chip, without being integrated into the processor 310.

[0086] The memory 320 may include random access memory (RAM) or read-only memory. Optionally, the memory 320 may include a non-transitory computer-readable storage medium. The memory 320 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 320 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 320 may also be at least one storage device located remotely from the aforementioned processor 310. Figure 5 As shown, the memory 320, which serves as a computer storage medium, may include an operating system, a network communication module, and a user.

[0087] exist Figure 5In the computer device 300 shown, the user interface 350 is mainly used to provide an input interface for the user and to obtain the user input data; while the processor 310 can be used to call the operation application stored in the memory 320, such as the fiber-containing ink printing control system program for product traceability and anti-counterfeiting; and execute the relevant operations of any fiber-containing ink printing control method for product traceability and anti-counterfeiting in the above embodiments, with corresponding functions and beneficial effects.

[0088] This application also provides a computer-readable storage medium storing a computer program. The instructions are adapted to be loaded by a processor and executed by the processor to perform the steps of the fiber-containing ink printing control method for product traceability and anti-counterfeiting described above. For details of the execution process, please refer to the specific description in the embodiments, which will not be repeated here. The device containing the storage medium can be an electronic device such as a personal computer, laptop computer, smartphone, or tablet computer.

[0089] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative, wherein the components described as separate parts may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this application according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0090] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0091] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 The computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function selected in one or more boxes.

[0092] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable apparatus for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function selected in one or more boxes.

[0093] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0094] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0095] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0096] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0097] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application.

Claims

1. A method for controlling the printing of fiber-containing inks for product traceability and anti-counterfeiting, characterized in that, Includes the following steps: Obtain ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern; Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, the first target sub-function is obtained with the volume ratio of fiber filament to ink mixture as the variable. Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset character clarity loss function model, the second objective sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable. Based on the first target sub-function and the second target sub-function, as well as the preset satisfaction function operation model, the target satisfaction function of the target character pattern is obtained; Based on the target satisfaction function, obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is highest; Based on the volume ratio of fiber filaments to ink mixed when the satisfaction level of the target character pattern is highest, the mixing ratio of fiber filaments and ink in the printing device is controlled. According to the target character pattern, the mixed fiber-containing ink is printed onto the product or product packaging through the corresponding printhead.

2. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 1, characterized in that, The ink property parameters include the dynamic viscosity of the ink; the fiber property parameters include the volume of a single fiber, the average length of the fiber, and the average diameter of the fiber; and the printing parameters of the target character pattern include the line width of the target character pattern. The step of obtaining the first target sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and a preset edge randomness saliency function model, with the volume ratio of fiber to ink mixture as the variable, includes: The dynamic viscosity of the ink, the volume of a single fiber, the average length of the fiber, the average diameter of the fiber, and the line width of the target character pattern are input into the following edge randomness saliency function model to obtain the first target sub-function: Where, k s N is the preset significance adjustment coefficient; f N represents the effective number of fibers per unit volume of ink. f = (V f / V ink ) / V f0 , where V f / V ink V is the volume ratio of the fiber to the ink mixture. f0 L is the volume of a single fiber. f d is the average length of the fiber. f W is the average diameter of the fiber. char η is the line width of the target character pattern. ink This refers to the dynamic viscosity of the ink.

3. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 2, characterized in that, The ink property parameters also include the ink adhesion decay constant, and the printhead performance parameters include the printhead's equivalent diameter. The step of obtaining the second objective sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and a preset character sharpness loss function model, with the volume ratio of the fiber filament to the ink mixture as the variable, includes: By inputting the ink's adhesion attenuation constant, the volume of a single fiber, the average diameter of the fiber, the line width of the target character pattern, and the equivalent diameter of the printhead into the following character sharpness loss function model, the second objective sub-function is obtained: Where, k l D is the preset sharpness loss factor. res k is the equivalent diameter of the printhead. adhesion λ is the preset adhesion influence coefficient, and λ is the ink adhesion decay constant.

4. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 3, characterized in that, The step of obtaining the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, and the preset satisfaction function operation model includes: By inputting the first and second objective sub-functions into the following satisfaction function operation model, the target satisfaction function of the target character pattern is obtained: Among them, S max L is the preset maximum significance of marginal randomness. max This is the preset maximum value for character clarity loss.

5. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 3, characterized in that, The step of obtaining the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, and the preset satisfaction function operation model includes the following steps: Based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and the preset satellite droplet generation probability function model, the third target sub-function is obtained with the volume ratio of the fiber filament to the ink mixture as the variable. Based on the first target sub-function, the second target sub-function, and the third target sub-function, as well as the preset satisfaction function operation model, the target satisfaction function of the target character pattern is obtained.

6. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 5, characterized in that, The ink property parameters also include the elastic modulus and surface tension coefficient of the ink, and the printhead performance parameters include the pulse width of the printhead's drive waveform. The step of obtaining the third objective sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, the performance parameters of the print head, and a preset satellite droplet generation probability function model, with the volume ratio of the fiber filament to the ink mixture as the variable, includes: The third objective sub-function is obtained by inputting the dynamic viscosity of the ink, the elastic modulus of the ink, the surface tension coefficient of the ink, the volume of a single fiber, the average diameter of the fiber, the line width of the target character pattern, the pulse width of the printhead's driving waveform, and the equivalent diameter of the printhead into the following satellite droplet generation probability function model: Where, k p τ is the preset satellite droplet generation coefficient. wave E represents the pulse width of the drive waveform for the printhead. elastic γ is the elastic modulus of the ink. ink is the surface tension coefficient of the ink.

7. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to claim 6, characterized in that, The step of obtaining the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, the third target sub-function, and a preset satisfaction function operation model includes: By inputting the first objective sub-function, the second objective sub-function, and the third objective sub-function into the following satisfaction function operation model, the target satisfaction function of the target character pattern is obtained: in, S max L is the preset maximum significance of marginal randomness. max P is the preset maximum character clarity loss; tolerance This is the preset maximum allowable satellite droplet probability threshold.

8. The fiber-containing ink printing control method for product traceability and anti-counterfeiting according to any one of claims 1 to 7, characterized in that, The steps for controlling the mixing ratio of fibers and ink in the printing device, based on the volume ratio of fiber to ink mixture corresponding to the highest satisfaction level of the target character pattern, include: In a first mixing container, a preset volume of fiber filaments is premixed with a preset volume of ink to obtain a fiber filament suspension with a first volume ratio. The fiber suspension and ink are mixed again in the second mixing container. The volume of ink input into the second mixing tank is controlled according to the first volume ratio and the volume ratio of fiber to ink when the satisfaction of the target character pattern is the highest, so as to obtain the fiber-containing ink.

9. A fiber-containing ink printing control system for product traceability and anti-counterfeiting, characterized in that, include: The parameter acquisition module is used to acquire ink property parameters, fiber property parameters of the fibers added to the ink, printhead performance parameters, and printing parameters of the target character pattern. The first calculation module is used to obtain the first target sub-function based on the ink property parameters, the fiber property parameters, the printing parameters of the target character pattern, and the preset edge randomness saliency function model, with the volume ratio of fiber filament to ink mixture as the variable. The second calculation module is used to obtain a second target sub-function based on the ink property parameters, the fiber property parameters, the print head performance parameters, the printing parameters of the target character pattern, and a preset character clarity loss function model, with the volume ratio of the fiber filament to the ink mixture as the variable. The satisfaction calculation module is used to obtain the target satisfaction function of the target character pattern based on the first target sub-function, the second target sub-function, and a preset satisfaction function calculation model. The optimal solution acquisition module is used to obtain the volume ratio of fiber filament to ink mixture when the satisfaction of the target character pattern is maximized, based on the target satisfaction function. The ratio adjustment module is used to control the mixing ratio of fiber filaments and ink in the printing device according to the volume ratio of fiber filaments to ink when the satisfaction of the target character pattern is the highest. The printing control module is used to print the mixed fiber-containing ink onto the product or product packaging through the corresponding print head according to the target character pattern.

10. A computer device comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the fiber-containing ink printing control method for product traceability and anti-counterfeiting as described in any one of claims 1 to 7.

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