Printing method of local three-dimensional image-text

Abstract

The invention relates to the technical field of image-text printing, and discloses a local three-dimensional image-text printing method which comprises the following steps: S1, a design stage: designing image-text content by using image design software, and determining a part needing a three-dimensional effect, including selecting proper image elements and characters, and determining the convex shapes and sizes of the image elements and the characters; s2, manufacturing a printing plate: converting the designed three-dimensional effect into a printable template according to a design drawing, printing a sample before actual production, and checking whether the local three-dimensional effect meets the expectation or not. By acquiring the color data of the paper, the appropriate color conversion algorithm is selected, and the setting of the printing equipment is accurately adjusted according to the calculated adjustment parameter, so that the color in the design file can be effectively and accurately mapped to the color configuration required by the printing equipment, and the printing quality of the printed matter under different light conditions is ensured. And the color effect expected by a designer can be accurately presented on paper made of different materials.

Description

Technical Field

[0001] The invention relates to the technical field of graphic printing, in particular to a method for printing partial three-dimensional graphics. Background Art

[0002] Graphic printing technology is a technology that transfers images and text to paper or other materials through printing equipment. It can efficiently and massively produce books, magazines, leaflets and other printed materials. Partial three-dimensional graphic printing is an advanced form of graphic printing technology. Through special technology and materials, some parts of the printed matter can present three-dimensional or tactile changes, so as to more vividly express some important information or product features, enhance the transmission effect and memorability of information, and better attract the attention of readers or viewers, making the printed matter more attractive and visually impactful.

[0003] In the prior art, when printing partial three-dimensional graphics, the designed file is loaded onto a printing machine, and the machine prints on paper or other materials according to the instructions of the design file. For the three-dimensional effect part, special ink or additives are usually used to enhance the three-dimensional effect.

[0004] However, traditional printing machines do not identify printing materials (such as paper or other media) when in use. Therefore, when using printing materials of different quality or material, the color performance will be affected due to different ink absorption and reflectivity, thereby affecting the printing effect and quality of partial three-dimensional graphics. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method for printing partial three-dimensional images and texts to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for printing partial three-dimensional graphics and texts, comprising the following steps:

[0007] S1. Design stage: Use graphic design software to design graphic content and determine the parts that need three-dimensional effects, including selecting appropriate graphic elements and texts, and determining their raised shapes and sizes;

[0008] S2. Make printing plates: According to the design drawings, convert the designed three-dimensional effect into a printable template, and perform sample printing before actual production to check whether the local three-dimensional effect meets expectations;

[0009] S3, Color Calibration: Use a color measuring instrument to obtain paper color data, select a conversion algorithm after analyzing color characteristics, calculate adjustment parameters to ensure that the printed color is consistent with the design file, and automatically adjust the printing equipment settings, including ink usage, print speed and color configuration;

[0010] S4. Printing process: Select appropriate printing technology, adjust the pressure, temperature and speed of the printing press to ensure accurate transmission of the three-dimensional pattern, place the printed material between the relief plate or embossing rollers of the printing press, and apply appropriate pressure to transfer the designed three-dimensional pattern and its color to the material surface;

[0011] S5. Post-printing processing: Consider the post-printing processing technology, including lamination, hot stamping, and UV coating to enhance the texture and durability of the printed product.

[0012] Preferably, in step S1, the size of the three-dimensional part is set to 20% to 30% of the height and thickness of the overall graphic content. This ratio can make the three-dimensional effect visually prominent but not abrupt, while maintaining visual balance and harmony with the surrounding planar elements.

[0013] Preferably, in step S2, the local 3D effect is checked including light and viewing angle, and the sample print is viewed under different light conditions and at different angles to ensure that the 3D effect can be accurately presented in various situations.

[0014] Preferably, in step S3, the color calibration is expressed by a function:

[0015] Scan paper material: [scan = f_scan (P)], where (C scan ) represents the color data obtained by scanning, (P) represents the paper material, and (f_scan) represents the scanning device function;

[0016] Color analysis: [C char =f analyze (C scan )], where (C char ) represents the color characteristics of paper materials, (C scan ) represents the color data obtained by scanning, (f analyze ) represents the function of color analysis;

[0017] Color conversion algorithm: [A convert =f select (C char )], where (A convert ) represents the selected color conversion algorithm, (C char ) represents the color characteristics of paper materials, (f select ) represents a function for selecting a color conversion algorithm;

[0018] Calculate adjustment parameters: [P adjust =f compute (A convert , C scan )], where (P adjust) represents the calculated adjustment parameter, (A convert ) represents the selected color conversion algorithm, (C scan ) represents the color data obtained by scanning, (f compute ) represents a function for calculating adjustment parameters;

[0019] Printing equipment adjustment: adjusted =f adjust (E,P adjust )], where (E adjusted ) represents the adjusted printing device settings, (E) represents the original printing device, (f adjust ) represents the function of automatically adjusting the printing equipment, where (E adjusted ) will include the adjusted ink usage, print speed and color configuration, which will be based on the input adjustment parameters (P adjust ) and the original device settings (E) are adjusted accordingly. The function (f_adjust) will calculate based on these parameters to automatically adjust the settings of the printing device.

[0020] Preferably, in step S3, the function expression of the color conversion algorithm is: [C′m×n=Am×p·C p×n ], where (Am×p) is an (m×p) color conversion matrix, (Cp×n) is a (p×n) color characteristic matrix, and a (m×n) converted color data matrix (C′) is obtained by matrix multiplication. m×n ).

[0021] Preferably, in step S4, the pressure of the printing press is adjusted according to the hardness and thickness of the printing material, and the range is 150N-1000N. The temperature depends on the printing technology and the type of ink used, and the range is 50 to 100°C. The speed is measured in square meters per minute (m 2 The specific value depends on the printing press model and material characteristics.

[0022] Preferably, in step S3, the adjustment parameter function (f compute ) is:

[0023] [E adiusted =fΩ(E,f∑(f Λ (Δ)))];

[0024] Where (Δ) represents input data, including print file characteristics and paper type;

[0025] (f Λ (Δ)) is used to analyze input data and obtain printing requirements;

[0026] (PΘ =f Λ The (Δ)) function calculates adjustment parameters including ink usage, printing speed and color configuration according to the analysis results;

[0027] (E) indicates the original printing equipment setting;

[0028] (E adjusted =fΩ(E, f∑)) function adjusts the original device settings to the optimal settings according to the adjustment parameters.

[0029] The present invention provides a method for printing partial three-dimensional images and texts. It has the following beneficial effects:

[0030] 1. The present invention can obtain the color data of paper by using a color measuring instrument, including the whiteness, reflectivity and basic color tone of the paper, which provides an important reference basis for the subsequent printing process. Then, a suitable color conversion algorithm is selected, and the settings of the printing device are accurately adjusted according to the calculated adjustment parameters, so that the colors in the design file can be effectively and accurately mapped to the color configuration required by the printing device, ensuring that the printed product can accurately present the color effect expected by the designer under different lighting conditions and on paper of different materials, avoiding the problem of poor color performance when using printing materials of different quality and material, and ensuring that the printed product reaches the required high quality standard in color performance.

[0031] 2. By analyzing the input data, the present invention can accurately calculate the parameters that need to be adjusted, such as ink usage, printing speed and color configuration, to maximize the performance and output quality of the printing equipment, which can not only reduce resource waste and human errors, but also improve the quality and efficiency of printing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example:

[0035] Please see attached Figure 1 The embodiment of the present invention provides a method for printing partial three-dimensional images and texts, comprising the following steps:

[0036] S1. Design stage: Use graphic design software to design graphic content and determine the parts that need three-dimensional effects, including selecting appropriate graphic elements and texts, and determining their raised shapes and sizes;

[0037] S2. Make printing plates: According to the design drawings, convert the designed three-dimensional effect into a printable template, and perform sample printing before actual production to check whether the local three-dimensional effect meets expectations;

[0038] S3, Color Calibration: Use a color measuring instrument to obtain paper color data, select a conversion algorithm after analyzing color characteristics, calculate adjustment parameters to ensure that the printed color is consistent with the design file, and automatically adjust the printing equipment settings, including ink usage, print speed and color configuration;

[0039] S4. Printing process: Select appropriate printing technology, adjust the pressure, temperature and speed of the printing press to ensure accurate transmission of the three-dimensional pattern, place the printed material between the relief plate or embossing rollers of the printing press, and apply appropriate pressure to transfer the designed three-dimensional pattern and its color to the material surface;

[0040] S5. Post-printing processing: Consider the post-printing processing technology, including lamination, hot stamping, and UV coating to enhance the texture and durability of the printed product.

[0041] Specifically, in the process of printing production, the design stage uses graphic design software to determine the three-dimensional effect part, select graphic elements and text, and design their raised shape and size to enhance visual impact and recognition. Then, in the plate making stage, the design is converted into a printing template, and sample printing is performed to check whether the three-dimensional effect meets expectations and ensure that the design is accurately presented on the printed product. In the color calibration stage, a color measuring instrument is used to obtain data and adjust parameters to ensure that the printed color is consistent with the design, thereby improving the color accuracy and consistency of the printed product. During the printing process, by selecting appropriate printing technology and adjusting the printing machine parameters, the three-dimensional pattern is ensured to be accurately transmitted to the material surface, thereby improving the visual appeal and quality of the printed product. Finally, post-printing processing processes such as lamination, hot stamping, and UV coating enhance the texture and durability of printed products, improve the appearance and overall quality, and make printed products more attractive and valuable.

[0042] In step S1, the size of the three-dimensional part is set to 20% to 30% of the height and thickness of the overall graphic content.

[0043] Specifically, by setting the size of the three-dimensional part to a certain proportion of the overall content, the three-dimensional effect can be visually prominent but not too abrupt or exaggerated, thereby helping to ensure visual balance and harmony between the three-dimensional elements and the surrounding flat elements, making the overall design look more unified and attractive.

[0044] In step S2, the local 3D effect including light and viewing angle is checked, and the sample print is viewed under different light conditions and at different angles to ensure that the 3D effect can be accurately presented in various situations.

[0045] Specifically, first, by evaluating the lighting conditions, ensure that the sample shows a clear three-dimensional effect under different lighting environments. Secondly, the observation angle is crucial, because different viewing angles will affect the visibility and strength of the three-dimensional effect. Therefore, it is necessary to observe at multiple angles to ensure that the design effect can be presented stably, thereby improving the visual appeal and information transmission effect of the printed material.

[0046] In step S3, color calibration is expressed by the function:

[0047] Scan paper material: [scan = f_scan (P)], where (C scan ) represents the color data obtained by scanning, (P) represents the paper material, and (f_scan) represents the scanning device function;

[0048] Color analysis: [C char =f analyze (C scan )], where (C char ) represents the color characteristics of paper materials, (C scan ) represents the color data obtained by scanning, (f analyze ) represents the function of color analysis;

[0049] Color conversion algorithm: [A convert =f select (C char )], where (A convert ) represents the selected color conversion algorithm, (C char ) represents the color characteristics of paper materials, (f select ) represents a function for selecting a color conversion algorithm;

[0050] Calculate adjustment parameters: [P adjust =f compute (A convert , C scan )], where (P adjust ) represents the calculated adjustment parameter, (A convert ) represents the selected color conversion algorithm, (C scan ) represents the color data obtained by scanning, (f compute ) represents a function for calculating adjustment parameters;

[0051] Printing equipment adjustment: adjusted =f adjust (E,P adjust )], where (Eadjusted ) represents the adjusted printing device settings, (E) represents the original printing device, (f adjust ) represents the function of automatically adjusting the printing equipment, where (E adjusted ) will include the adjusted ink usage, print speed and color configuration, which will be based on the input adjustment parameters (P adjust ) and the original device settings (E) are adjusted accordingly. The function (f_adjust) will calculate based on these parameters to automatically adjust the settings of the printing device.

[0052] Specifically, through the above process, the paper material is scanned and its color characteristics are analyzed, the appropriate color conversion algorithm is selected, and the settings of the printing equipment are accurately adjusted according to the calculated adjustment parameters. This precise color calibration method can ensure that the printed product meets the required high quality standards in color performance, while improving production efficiency and resource utilization efficiency, reducing human errors, and ensuring the stability and consistency of the printing process, thereby meeting different printing needs and improving overall production efficiency.

[0053] In step S3, the function expression of the color conversion algorithm is: [C′m×n=Am×p·C p×n ], where (Am×p) is an (m×p) color conversion matrix, (Cp×n) is a (p×n) color characteristic matrix, and a (m×n) converted color data matrix (C′) is obtained by matrix multiplication. m×n ).

[0054] Specifically, the input color data is linearly transformed by using the color conversion matrix, and then the color is finely adjusted and converted by multiplying it by the color characteristic matrix, so as to achieve the desired color effect. At the same time, it describes how to change the input color in different color spaces or when performing color correction. The color characteristic matrix contains subtle adjustments to be applied to each color, which can not only achieve color conversion and correction, but also maintain the accuracy and quality of color data, ensuring that the final output color meets the design requirements and expectations, and thus can achieve precise control and adjustment of color in the graphic design and printing process, thereby improving the visual quality and color performance of printed products.

[0055] In step S4, the pressure of the printing press is adjusted according to the hardness and thickness of the printing material, ranging from 150N to 1000N, the temperature depends on the printing technology and ink type used, ranging from 50 to 100°C, and the speed is measured in square meters per minute (m 2 The specific value depends on the printing press model and material characteristics.

[0056] Specifically, the pressure of the printing press is adjusted according to the hardness and thickness of the printing material, and is usually set between 150N and 1000N. This range is selected based on ensuring that the printed matter can evenly transfer ink to the printing medium while avoiding damage to the material surface or affecting the printing quality. The pressure of the printing press can be adjusted through the pressure regulating device on the machine to ensure that the best printing effect can be achieved under different material conditions. The temperature during printing depends on the selected printing technology and ink type, and is generally set between 50℃ and 100℃. The control of temperature mainly affects the fluidity and drying speed of the ink. The appropriate temperature can help the ink to be evenly coated and quickly solidified during the printing process, thereby improving the printing speed and quality stability. The printing speed is usually measured in square meters printed per minute (m 2 / min), the specific value depends on the model of the printing machine and the characteristics of the printing materials used. The selection of speed is aimed at improving production efficiency as much as possible while ensuring printing quality, so as to ensure that a large number of printed products can be completed in a shorter time. Through the precise control and adjustment of these parameters, the best matching of various conditions in the printing process can be ensured, thereby ensuring that the quality of printed products and production efficiency reach the expected level and meet customer needs and requirements.

[0057] In step S3, the adjustment parameter function (f compute ) is:

[0058] [E adiusted =fΩ(E,f∑(f Λ (Δ)))];

[0059] Where (Δ) represents input data, including print file characteristics and paper type;

[0060] (f Λ (Δ)) is used to analyze input data and obtain printing requirements;

[0061] (P Θ =f Λ The (Δ)) function calculates adjustment parameters including ink usage, printing speed and color configuration according to the analysis results;

[0062] (E) indicates the original printing equipment setting;

[0063] (E adjusted =fΩ(E, f∑)) function adjusts the original device settings to the optimal settings according to the adjustment parameters.

[0064] Specifically, by analyzing the input data, the printing press can accurately calculate the parameters that need to be adjusted, such as ink usage, printing speed and color configuration, to maximize the performance and output quality of the printing equipment, which can not only reduce resource waste and human errors, but also ensure stability and consistency in the printing process.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for printing partial three-dimensional images, characterized in that: The following steps are involved: S1. Design stage: Use graphic design software to design graphic content and determine the parts that need three-dimensional effects, including selecting appropriate graphic elements and texts, and determining their raised shapes and sizes; S2. Make printing plates: According to the design drawings, convert the designed three-dimensional effect into a printable template, and perform sample printing before actual production to check whether the local three-dimensional effect meets expectations; S3, Color Calibration: Use a color measuring instrument to obtain paper color data, select a conversion algorithm after analyzing color characteristics, calculate adjustment parameters to ensure that the printed color is consistent with the design file, and automatically adjust the printing equipment settings, including ink usage, print speed and color configuration; S4. Printing process: Select appropriate printing technology, adjust the pressure, temperature and speed of the printing press to ensure accurate transmission of the three-dimensional pattern, place the printed material between the relief plate or embossing rollers of the printing press, and apply appropriate pressure to transfer the designed three-dimensional pattern and its color to the material surface; S5. Post-printing processing: Consider the post-printing processing technology, including lamination, hot stamping, and UV coating to enhance the texture and durability of the printed product.

2. A method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S1, the size of the three-dimensional part is set to 20% to 30% of the height and thickness of the overall graphic content.

3. A method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S2, the local 3D effect including light and viewing angle is checked, and the sample print is viewed under different light conditions and at different angles to ensure that the 3D effect can be accurately presented in various situations.

4. A method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S3, the color calibration is expressed by the function: Scan paper material: [scan = f_scan (P)], where (C scan ) represents the color data obtained by scanning, (P) represents the paper material, and (f_scan) represents the scanning device function; Color Analysis: [C char =f analyze (C scan )], where (C char ) represents the color characteristics of paper materials, (C scan ) represents the color data obtained by scanning, (f analyze ) represents the function of color analysis; Color conversion algorithm: [A convert =f select (C char )], where (A convert ) represents the selected color conversion algorithm, (C char ) represents the color characteristics of paper materials, (f select ) represents a function for selecting a color conversion algorithm; Calculate adjustment parameters: [P adjust =f compute (A convert ,C scan )], where (P adjust ) represents the calculated adjustment parameter, (A convert ) represents the selected color conversion algorithm, (C scan ) represents the color data obtained by scanning, (f compute ) represents a function for calculating adjustment parameters; Printing equipment adjustment: adjusted =f adjust (E,P adjust )], where (E adjusted ) represents the adjusted printing device settings, (E) represents the original printing device, (f adjust ) represents the function of automatically adjusting the printing equipment, where (E adjusted ) will include the adjusted ink usage, print speed and color configuration, which will be based on the input adjustment parameters (P adjust ) and the original device settings (E) are adjusted accordingly. The function (f_adjust) will calculate based on these parameters to automatically adjust the settings of the printing device.

5. The method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S3, the function expression of the color conversion algorithm is: [C′ m×n =Am×p·C p×n ], where (Am×p) is an (m×p) color conversion matrix, (Cp×n) is a (p×n) color characteristic matrix, and a (m×n) converted color data matrix (C′) is obtained by matrix multiplication. m×n ).

6. A method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S4, the pressure of the printing press is adjusted according to the hardness and thickness of the printing material, and the range is 150N-1000N. The temperature depends on the printing technology and the type of ink used, and the range is 50 to 100°C. The speed is measured in square meters per minute (m 2 The specific value depends on the printing press model and material characteristics.

7. A method for printing partial three-dimensional images and texts according to claim 1, characterized in that: In step S3, the adjustment parameter function (f compute ) is: [E adjusted =fΩ(E,f∑(f Λ (D)))]; Where (Δ) represents input data, including print file characteristics and paper type; (f Λ (Δ)) is used to analyze input data and obtain printing requirements; (P Θ =f Λ The (Δ)) function calculates adjustment parameters including ink usage, printing speed and color configuration according to the analysis results; (E) indicates the original printing equipment setting; (E adjusted =fΩ(E, f∑)) function adjusts the original device settings to the optimal settings according to the adjustment parameters.

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