Paper rendering printing preparation process with multi-angle gradual effect

Abstract

The present application relates to a kind of paper drawing printing preparation processes of multi-angle gradual effect, comprising the following steps: S1, making color pattern background;S2, making silk screen printing plate;S3, preparation UV bright oil ink;S4, preparation silk screen printing laser color pattern ink;S5, make printed matter form silk screen printing laser color pattern effect;S6, dry.The present application has the advantages that:1.laser color pattern process has significant visual effect, can make printed matter surface present luxury and unique effect.2.It is simple and easy to operate, does not need additional special equipment, reduces production cost.3.It can be applied to multiple fields, expands the application range of silk screen printing technology.4.Through the application of laser color pattern process, brand image and product added value are enhanced.

Description

Technical Field

[0001] This invention relates to a paper drawing and printing preparation process with multi-angle gradient effects, belonging to the field of printing technology. Background Technology

[0002] The production process for gold cardstock, silver cardstock, and glossy cardstock involves using UV transfer technology. A layer of UV oil is applied to the surface of the paper using an elephant leather cloth, and then a roller transfers the film or custom-designed pattern onto the printing paper. This creates a reflective effect on the paper surface, resulting in a superior mirror-like finish that is ultra-smooth and highly glossy. The printing process ensures uniform ink absorption, outstanding visual effects, good paper spreadability, and a vibrant, layered surface. However, this production process requires specialized engraving for both the glossy film and custom designs, leading to higher costs and timelines for custom engraving. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a paper drawing and printing preparation process with multi-angle gradient effects. The technical solution of this invention is as follows:

[0004] A paper drawing and printing preparation process with multi-angle gradient effects includes the following steps:

[0005] S1. Create the colored background pattern; S2. Create the screen printing stencil; S3. Prepare the UV glossy ink; S4. Prepare the screen printing laser colored ink; S5. Create the screen printing laser colored effect on the printed material; S6. Dry.

[0006] The specific steps of S1 are as follows:

[0007] (1) Use Illustrate software to create several lines, so that there is a gap between adjacent lines, and then fill the shape;

[0008] (2) Create light-sensitive texture: Adjust the fill angle and density according to the pre-selected pattern or design pattern to make the pattern texture have a sense of layering;

[0009] (3) Finally, export the AI ​​file and edit it to produce film.

[0010] The specific steps of step S2 are as follows:

[0011] (1) Place the film on the glass;

[0012] (2) Place the screen plate coated with photosensitive emulsion flat on the film, close the light shield of the exposure machine and lock the screen plate;

[0013] (3) After setting the exposure time, develop the plate;

[0014] (4) Rinsing and drying.

[0015] The specific steps of step S3 are as follows:

[0016] (1) Preparation: Use prepress software to create proofs of printed materials. Proofs are used to check and confirm the accuracy of typesetting, color and content. After confirmation, transfer the proof file to the CTP device. Select printing plate materials according to printing requirements and load them into the CTP device for installation and adjustment.

[0017] (2) Adjust the equipment: Adjust the pressure of the offset printing machine;

[0018] (3) After the product colors are printed on the offset printing machine, UV glossy ink is printed;

[0019] (4) UV glossy ink is cured quickly by ultraviolet light. After curing, the glossy part will have a glossy effect.

[0020] Step S4 specifically involves selecting laser ink, UV varnish ink, and offset UV gloss ink, wherein the volume ratio of the laser ink, UV varnish ink, and offset UV gloss ink is 0.1-1.2:0.1-1.1:1.

[0021] The volume ratio of the laser ink, UV varnish ink, and offset UV gloss ink is 0.8:1:1.

[0022] The specific steps of step S5 are as follows:

[0023] (1) Adjust the printing press: Adjust the platform and screen device of the printing press to ensure that the contact between the screen and the printed matter is uniform and stable;

[0024] (2) Inking: Apply the ink prepared in step S4 to the screen;

[0025] (3) Printing: Place the offset UV glossy ink substrate prepared in step S3 on the platform of the printing machine, place the screen printing plate on the front side of the paper, and print. Use a squeegee to press the ink through the screen so that the ink is printed onto the paper through the screen.

[0026] Specifically, step S6 involves: after printing, exposing the paper to ultraviolet light to cure it.

[0027] It also includes step S8, and further processing steps after the paper has dried.

[0028] In step S2, when setting the exposure time:

[0029] When using a UV light source, the distance from the screen should be 30-40cm, and the exposure time should be 60-90 seconds. When using offset printing, the light source is a fluorescent lamp, the distance from the screen should be 30-40cm, and the exposure time should be approximately 5-8 minutes.

[0030] When using offset printing, the light source is a UV light source, the distance from the screen is 30-40cm, and the exposure time is approximately 1.5-2.5 minutes;

[0031] Rinse the screen with tap water and dry it in a dryer at 50°C for 5 minutes.

[0032] When adjusting the equipment in step S3, the distance between the printing plate cylinder and the rubber cylinder is 0.05 to 0.10 mm; the distance between the rubber cylinder and the impression cylinder is between 0.20 and 0.25 mm.

[0033] The advantages of this invention are:

[0034] 1. Laser holographic printing has a remarkable visual effect, giving printed materials a luxurious and unique look.

[0035] 2. The process is simple and easy to implement, requiring no additional specialized equipment, thus reducing production costs.

[0036] 3. It can be applied to multiple fields, expanding the application scope of screen printing technology.

[0037] 4. The application of laser-etched patterns enhances the brand image and product added value. Detailed Implementation

[0038] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solutions of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0039] This invention relates to a paper drawing and printing preparation process for multi-angle gradient effects, comprising the following steps:

[0040] S1. Create the colored background pattern; S2. Create the screen printing stencil; S3. Prepare the UV glossy ink; S4. Prepare the screen printing laser colored ink; S5. Create the screen printing laser colored effect on the printed material; S6. Dry.

[0041] The specific steps of S1 are as follows:

[0042] (1) Use Illustrate software to create several lines with a line width of 0.08mm, and create a gap between adjacent lines with a line spacing of 0.18mm, and then fill the shape;

[0043] (2) Create light-sensitive texture: According to the pre-selected pattern or design pattern, adjust the fill angle (select and adjust between 40°, 90° and 140°) and density to make the pattern texture have a sense of layering;

[0044] (3) Finally, export the AI ​​file and edit it to produce film.

[0045] The specific steps of step S2 are as follows:

[0046] (1) Place the film on the glass;

[0047] (2) Place the screen plate coated with photosensitive emulsion on the film (the mesh count depends on the product, generally between 300 and 500 mesh, and should not be lower than 300 mesh), close the light shield of the exposure machine and lock the screen plate.

[0048] (3) Set the exposure time for plate exposure and then develop; when setting the exposure time:

[0049] When using a UV light source, the distance from the screen should be 30-40cm, and the exposure time should be 60-90 seconds. When using offset printing, the light source is a fluorescent lamp, the distance from the screen should be 30-40cm, and the exposure time should be approximately 5-8 minutes. When using offset printing, the light source is a UV light source, the distance from the screen should be 30-40cm, and the exposure time should be approximately 1.5-2.5 minutes.

[0050] (4) Rinsing and drying, wherein the screen is rinsed with tap water and dried in a dryer at a temperature of 50°C for 5 minutes.

[0051] The specific steps of step S3 are as follows:

[0052] (1) Preparation: Use prepress software to create proofs of printed materials (such as Adobe InDesign, Adobe Illustrator, etc.). Proofs are used to check and confirm the accuracy of typesetting, color and content. After confirmation, transfer the proof file to the CTP device, select printing plate materials according to printing requirements, and load them into the CTP device for installation and adjustment.

[0053] (2) Adjust the equipment: Adjust the pressure of the offset printing machine so that the distance between the printing plate cylinder and the rubber cylinder is 0.05-0.10mm; the distance between the rubber cylinder and the impression cylinder is between 0.20-0.25mm.

[0054] (3) After the product colors are printed on the offset printing machine, UV glossy ink is printed;

[0055] (4) UV glossy ink is cured quickly by ultraviolet light. After curing, the glossy part will have a glossy effect.

[0056] Step S4 specifically involves selecting laser ink, UV varnish ink, and offset UV gloss ink, wherein the volume ratio of the laser ink, UV varnish ink, and offset UV gloss ink is 0.1-1.2:0.1-1.1:1.

[0057] The gloss of printed materials under each ink mixing ratio was measured, and the results were statistically analyzed. The analysis revealed that the optimal ink mixing ratio (volume ratio of laser ink, UV varnish ink, and offset UV gloss ink) of 0.8:1:1 resulted in the highest gloss level, significantly improving both brightness and gloss compared to traditional ink mixing ratios. Furthermore, scanning electron microscopy (SEM) observation of the printed surface revealed a more uniform and smoother texture.

[0058] The specific steps of step S5 are as follows:

[0059] (1) Adjust the printing press: Adjust the platform and screen device of the printing press to ensure that the contact between the screen and the printed matter is uniform and stable;

[0060] (2) Inking: Apply the ink prepared in step S4 to the screen;

[0061] (3) Printing: Place the offset UV glossy ink substrate prepared in step S3 on the platform of the printing machine, place the screen printing plate on the front side of the paper, and print. Use a squeegee to press the ink through the screen so that the ink is printed onto the paper through the screen.

[0062] Specifically, step S6 involves: after printing, exposing the paper to ultraviolet light to cure it.

[0063] It also includes step S8, and further processing steps after the paper has dried, such as cutting, folding, and packaging.

[0064] In this invention, UV-curable ink refers to ink that, under ultraviolet irradiation, utilizes ultraviolet light of different wavelengths and energies to polymerize monomers in the ink binder into polymers, thereby forming an ink film and drying. UV ink has the following characteristics: 1. Good printability with lower requirements for the substrate. 2. High gloss and high adhesion, improving the appearance and decorative properties of products. 3. Rapid drying, shortening the production cycle. 4. Abrasion resistance, corrosion resistance, and weather resistance. 5. Typically contains visible and ultraviolet curing agents to achieve color curing.

[0065] Laser ink is a type of anti-counterfeiting ink with metallic optical color-changing properties. When screen-printed or roller-printed on various smooth and transparent materials, it can display different colors as the viewing angle changes, which is called the color-changing phenomenon at different angles. It has a significant dynamic color-changing effect and can produce a rainbow ring effect under focused light.

[0066] Screen printing with laser patterns utilizes the principle of specular reflection of light to achieve its unique decorative effect. It involves mixing three inks—high-gloss laser ink, UV ink, or offset gloss varnish—as the printing material. A design is created on a printing plate, and the mixed inks are pressed onto the printed material using pressure applied to the plate. This creates regular, raised patterns that, when illuminated, produce a layered, shimmering effect. This effect can give any paper a glossy or patterned appearance.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A paper drawing and printing preparation process with multi-angle gradient effects, characterized in that, Includes the following steps: S1. Create a colored background pattern; S2. Prepare the screen printing stencil; S3. Prepare UV glossy ink; S4. Prepare screen printing laser texture ink; S5. Apply the screen printing laser texture effect to the printed material; S6. Dry; Step S1 specifically includes: (1) Use Illustrate software to create several lines, so that there is a gap between adjacent lines, and then fill the shape; (2) Create light-sensitive texture: Adjust the fill angle and density according to the pre-selected pattern or design pattern to make the pattern texture have a sense of layering; (3) Finally, export the AI ​​file and edit it to produce film; The specific steps of step S2 are as follows: (1) Place the film on the glass; (2) Place the screen plate coated with photosensitive emulsion flat on the film, close the light shield of the exposure machine and lock the screen plate; (3) After setting the exposure time, develop the plate; (4) Rinsing and drying; The specific steps of step S3 are as follows: (1) Preparation: Use prepress software to create proofs of printed materials. Proofs are used to check and confirm the accuracy of typesetting, color and content. After confirmation, transfer the proof file to the CTP device. Select printing plate materials according to printing requirements and load them into the CTP device for installation and adjustment. (2) Adjusting the equipment: Adjust the pressure of the offset printing machine; when adjusting the equipment in step S3, make the distance between the printing plate cylinder and the rubber cylinder 0.05-0.10mm; and the distance between the rubber cylinder and the impression cylinder between 0.20-0.25mm. (3) After the product colors are printed on the offset printing machine, UV glossy ink is printed; (4) UV glossy ink is cured quickly by ultraviolet light. After curing, the glossy part will have a glossy effect. Step S4 specifically involves selecting laser ink, UV varnish ink, and offset UV gloss varnish ink; The specific steps of step S5 are as follows: (1) Adjusting the printing press: Adjusting the platform and screen device of the printing press to ensure that the contact between the screen and the printed matter is uniform and stable; (2) Applying ink: Applying the ink prepared in step S4 to the screen; (3) Printing: Placing the offset UV glossy ink substrate prepared in step S3 on the platform of the printing press, placing the screen printing plate on the front side of the paper, and printing, using a squeegee to press the ink through the screen so that the ink passes through the screen and is printed onto the paper.

2. The paper drawing and printing preparation process with multi-angle gradient effect according to claim 1, characterized in that, in, The volume ratio of the laser ink, UV varnish ink, and offset UV gloss ink is 0.1-1.2:0.1-1.1:

1.

3. The paper drawing and printing preparation process with multi-angle gradient effect according to claim 1, characterized in that, The volume ratio of the laser ink, UV varnish ink, and offset UV gloss ink is 0.8:1:

1.

4. The paper drawing and printing preparation process with multi-angle gradient effect according to claim 1, characterized in that, Step S6 specifically involves: after printing, exposing the paper to ultraviolet light to cure it.

5. The paper drawing and printing preparation process with multi-angle gradient effect according to claim 1, characterized in that, In step S2, when setting the exposure time: when using a UV light source, the distance from the screen is 30-40cm, and the exposure time is 60-90 seconds; when using offset printing, the light source is a fluorescent lamp, the distance from the screen is 30-40cm, and the exposure time is 5-8 minutes; when using offset printing, the light source is a UV light source, the distance from the screen is 30-40cm, and the exposure time is 1.5-2.5 minutes; rinse the screen with tap water, dry it in a dryer at 50℃ for 5 minutes.