Double-sided composite reinforced screen printing plate and manufacturing method thereof

Abstract

The invention relates to the technical field of screen production, in particular to a double-sided composite reinforced printing screen and a manufacturing method thereof. Weaving metal wires to obtain screen cloth, and fixing the screen cloth on a screen frame; coating the bottom surface of the screen cloth with a high polymer material to form a first high polymer material layer on the screen cloth; etching the first high polymer material layer in a laser etching mode to form an opening pattern; coating a PI composite material on the top surface of the screen cloth to obtain a PI layer; coating the front surface of the PI layer with a high polymer material to form a second high polymer material layer; the second high polymer material layer is etched in a laser etching mode, the double-sided composite reinforced printing screen is obtained, the first high polymer material layer and the second high polymer material layer are additionally arranged, screen point position abrasion caused by the downward pressing pressure and the depth of a scraper is avoided, and the printing service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of screen production, in particular to a double-sided composite reinforced printing screen and a manufacturing method thereof. Background Art

[0002] Screens are a crucial tool in screen printing, and arguably its foundation. They are primarily composed of a mesh of polyamide, nylon, or metal fibers, woven in warp and weft directions, stretched under a defined tension, and then secured to a frame. Besides creating the pattern, the screen also controls the amount of ink allowed to penetrate during printing. Therefore, the screen significantly impacts print precision, thickness, and penetration.

[0003] In the process of screen printing, the single printing method makes it impossible for most printing companies to maximize equipment utilization while improving efficiency, which increases the cost of printing companies to a certain extent and increases the company's labor costs.

[0004] During the printing process, the downward pressure and depth of the scraper cause the screen to be severely worn at specific points. In addition, due to the limitations of the screen structure, some areas of the screen are severely worn, reducing the service life of the printing press. Summary of the Invention

[0005] The purpose of the present invention is to provide a double-sided composite reinforced printing screen and a method for manufacturing the same, aiming to solve the technical problems in the prior art in that the screen is prone to severe wear at specific points due to the downward pressure and depth of the scraper, and that some areas of the screen are severely worn due to structural limitations of the screen, thereby reducing the service life of the printing press.

[0006] To achieve the above object, the present invention adopts a method for manufacturing a double-sided composite reinforced printing screen, comprising the following steps:

[0007] Metal wire is used for weaving to obtain mesh, and then fixed on the mesh frame;

[0008] Coating the bottom surface of the mesh with a polymer material to form a first polymer material layer on the mesh;

[0009] etching the first polymer material layer by laser etching to form an opening pattern;

[0010] Coating the top surface of the mesh with a PI composite material to obtain a PI layer;

[0011] Coating the front surface of the PI layer with the polymer material to form a second polymer material layer;

[0012] The second polymer material layer is etched by laser etching to obtain a double-sided composite reinforced printing screen.

[0013] wherein a plurality of metal warps and a plurality of metal wefts are woven in an up-and-down interlaced manner to form the mesh;

[0014] The mesh is stretched using a screen stretching machine and fixed on the screen frame after reaching a predetermined tension.

[0015] wherein the mesh is pretreated;

[0016] Use a blade coater to plot the coating thickness;

[0017] Cooperate with curing equipment to form the first polymer material layer.

[0018] wherein the screen frame with the first polymer material layer is placed on an etching workbench;

[0019] Input the designed pattern data into the control system of the laser etching equipment;

[0020] The laser etching equipment parameters are adjusted and the laser etching equipment is started to complete the etching of the opening pattern.

[0021] wherein the mesh is cleaned and its integrity is checked;

[0022] A PI composite material is selected for coating, and the PI layer is obtained using the curing equipment.

[0023] wherein the PI layer is pre-processed;

[0024] The coating thickness is plotted using the blade coater;

[0025] Cooperate with the curing equipment to form the second polymer material layer.

[0026] wherein the screen frame with the second polymer material layer is placed on an etching workbench;

[0027] Inputting the designed pattern data into the control system of the laser etching equipment;

[0028] Adjusting the parameters of the laser etching equipment and starting the laser etching equipment to complete etching of the opening pattern;

[0029] forming a plurality of convex structures and a plurality of concave structures on the second polymer material layer, wherein the convex structures and the concave structures are arranged alternately;

[0030] Finally, a double-sided composite reinforced printing screen is obtained.

[0031] The present invention also provides a double-sided composite reinforced printing screen, comprising a first polymer material layer, a mesh, a primer layer, a PI layer and a second polymer material layer, the mesh being connected to the first polymer material layer and being located above the first polymer material layer, the primer layer being respectively connected to the first polymer material layer and the mesh and being located above the first polymer material layer and the mesh, the PI layer being respectively connected to the mesh and the primer layer and being located above the mesh and the primer layer, and the second polymer material layer being connected to the PI layer and being located above the PI layer.

[0032] The present invention provides a double-sided composite reinforced printing screen and a manufacturing method thereof. The screen is woven with metal wires to obtain a mesh, which is fixed on a screen frame. The bottom surface of the mesh is coated with a polymer material to form a first polymer material layer on the mesh. The first polymer material layer is etched by laser etching to form an opening pattern. A PI composite material is coated on the top surface of the mesh to obtain a PI layer. The front surface of the PI layer is coated with the polymer material to form a second polymer material layer. The second polymer material layer is etched by laser etching to obtain a double-sided composite reinforced printing screen. By adding the first polymer material layer and the second polymer material layer, wear of the screen points caused by the downward pressure of the scraper and the depth of the scraper is avoided, thereby extending the printing life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a schematic flow chart of the method for producing a double-sided composite reinforced printing screen of the present invention.

[0035] Figure 2 It is a step flow chart of S100 of the present invention.

[0036] Figure 3 It is a step flow chart of S200 of the present invention.

[0037] Figure 4 It is a step flow chart of S300 of the present invention.

[0038] Figure 5 It is a step flow chart of S500 of the present invention.

[0039] Figure 6It is a step flow chart of S500 of the present invention.

[0040] Figure 7 It is a step flow chart of S600 of the present invention.

[0041] Figure 8 It is a structural schematic diagram of the double-sided composite reinforced printing screen of the present invention.

[0042] 701 - first polymer material layer, 702 - mesh, 703 - base glue layer, 704 - PI layer, 705 - second polymer material layer. DETAILED DESCRIPTION

[0043] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.

[0044] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are 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 encompasses any and all possible combinations of one or more of the associated listed items.

[0045] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0046] See also Figures 1 to 7 ,in Figure 1 This is a schematic flow chart of the method for producing a double-sided composite reinforced printing screen of the present invention. Figure 2 is a step flow chart of S100 of the present invention, Figure 3 is a flow chart of the steps of S200 of the present invention, Figure 4 is a flow chart of the steps of S300 of the present invention, Figure 5 is a flow chart of the steps of S500 of the present invention, Figure 6 is a flow chart of the steps of S500 of the present invention, Figure 7 It is a flowchart of the steps of S600 of the present invention.

[0047] The present invention provides a method for manufacturing a double-sided composite reinforced printing screen, comprising the following steps:

[0048] S100: Weaving a mesh with metal wires to obtain the mesh and fixing it on a mesh frame;

[0049] S200: Covering the bottom surface of the mesh with a polymer material to form a first polymer material layer on the mesh;

[0050] S300: etching the first polymer material layer by laser etching to form an opening pattern;

[0051] S400: coating the top surface of the mesh with a PI composite material to obtain a PI layer;

[0052] S500: coating the front surface of the PI layer with the polymer material to form a second polymer material layer;

[0053] S600: Etching the second polymer material layer by laser etching to obtain a double-sided composite reinforced printing screen.

[0054] In this embodiment, metal wire is used for weaving to obtain a mesh, and the mesh is fixed on a screen frame; the bottom surface of the mesh is coated with a polymer material to form a first polymer material layer on the mesh; the first polymer material layer is etched by laser etching to form an opening pattern; a PI composite material is coated on the top surface of the mesh to obtain a PI layer; the front surface of the PI layer is coated with the polymer material to form a second polymer material layer; the second polymer material layer is etched by laser etching to obtain a double-sided composite reinforced printing screen, and the first polymer material layer and the second polymer material layer are added to avoid wear of the screen points caused by the downward pressure of the scraper and the depth of the scraper, thereby extending the life of the printing.

[0055] Furthermore, in the step of weaving the metal wire to obtain the mesh and fixing it on the mesh frame:

[0056] Weaving a plurality of metal warps and a plurality of metal wefts in an up-and-down interlaced manner to form the mesh;

[0057] The mesh is stretched using a screen stretching machine and fixed on the screen frame after reaching a predetermined tension.

[0058] In this embodiment, a plurality of metal warps and wefts are prepared, and their specifications and materials are checked to see if they meet the production requirements. The warps are neatly arranged and fixed on the warp axis of the weaving equipment, and the wefts are woven with the warps in an up-and-down staggered manner through a shuttle or other weft feeding device. During the weaving process, the weaving density and tension are monitored in real time to ensure that the structure of the mesh is uniform and stable until the required size and specifications are reached. The woven mesh is laid flat on the workbench of the screen stretching machine, and the clamps of the stretching machine are adjusted so that they evenly clamp the edges of the mesh. When the mesh tension reaches a predetermined value, the mesh is quickly fixed on the screen frame to ensure that the mesh is flat and wrinkle-free.

[0059] Furthermore, in the step of coating the bottom surface of the mesh with a polymer material to form a first polymer material layer on the mesh:

[0060] Pre-treating the mesh;

[0061] Use a blade coater to plot the coating thickness;

[0062] Cooperate with curing equipment to form the first polymer material layer.

[0063] In this embodiment, a high-pressure air spray gun is used to blow the surface of the mesh to remove metal debris, dust and other impurities attached during the weaving and stretching process. The coating thickness is 15 μm using the scraper coater. According to the curing process requirements of the material, the curing temperature and time are set to form the first polymer material layer.

[0064] Furthermore, in the step of etching the first polymer material layer by laser etching to form an opening pattern:

[0065] placing the screen frame with the first polymer material layer on an etching workbench;

[0066] Input the designed pattern data into the control system of the laser etching equipment;

[0067] The laser etching equipment parameters are adjusted and the laser etching equipment is started to complete the etching of the opening pattern.

[0068] In this embodiment, the screen frame with the first polymer material layer is transferred to the etching workbench, ensuring that the screen frame is placed stably, the control system operation interface of the laser etching equipment is opened, the data import function is selected, and the designed opening pattern data file is imported into the system; according to the material and thickness of the first polymer material layer and the complexity of the opening pattern, the key parameters such as laser power, scanning speed, pulse frequency, etc. are set in the laser etching equipment control system to complete the etching of the opening pattern.

[0069] Furthermore, in the step of coating the top surface of the mesh with a PI composite material to obtain a PI layer:

[0070] Cleaning the mesh and checking its integrity;

[0071] A PI composite material is selected for coating, and the PI layer is obtained using the curing equipment.

[0072] In this embodiment, an antistatic soft brush is used to gently brush away the etching debris remaining on the surface of the mesh, and the mesh is coated by scraping. Using the spin coating method, the mesh frame is fixed on the workbench of the spin coater, and an appropriate amount of PI composite material is poured in. The speed and time of the spin coater are set so that the material evenly covers the surface of the mesh to form a PI layer.

[0073] Furthermore, in the step of coating the front surface of the PI layer with the polymer material to form a second polymer material layer:

[0074] Preprocessing the PI layer;

[0075] The coating thickness is plotted using the blade coater;

[0076] Cooperate with the curing equipment to form the second polymer material layer.

[0077] In this embodiment, the screen frame with the PI layer is placed on a dust-free operating table, and anhydrous ethanol is first dipped in a dust-free cloth and the surface of the PI layer is gently wiped to remove impurities such as oil, fingerprints, etc. attached during placement or transportation; the screen frame is stably installed on the conveyor belt of the coating machine, and the distance between the scraper and the PI layer is precisely adjusted. This distance determines the coating thickness; parameters are set according to the curing process requirements of the material, and low-temperature pre-curing is performed to eliminate solvents and internal stress to form the second polymer material layer.

[0078] Further, placing the screen frame with the second polymer material layer on an etching workbench;

[0079] Inputting the designed pattern data into the control system of the laser etching equipment;

[0080] Adjusting the parameters of the laser etching equipment and starting the laser etching equipment to complete etching of the opening pattern;

[0081] forming a plurality of convex structures and a plurality of concave structures on the second polymer material layer, wherein the convex structures and the concave structures are arranged alternately;

[0082] Finally, a double-sided composite reinforced printing screen is obtained.

[0083] In this embodiment, the screen frame with the second polymer material layer is placed stably and horizontally on the etching workbench, and the designed opening pattern data file is imported to confirm that the convex and concave structure layout meets the staggered arrangement requirements; according to the material properties and the complexity of the pattern, the laser power, scanning speed, pulse frequency and other parameters are accurately set. After the etching is completed, the integrity of the screen is checked on a strong light transmission inspection table, and the opening pattern and the convex and concave structure size are measured with a high-precision caliper to ensure that the error meets the standard. After it is correct, a double-sided composite reinforced printing screen is obtained, which can be used for subsequent packaging.

[0084] Corresponding to the aforementioned embodiment of a double-sided composite reinforced printing screen method, the present application also provides an embodiment of a double-sided composite reinforced printing screen system.

[0085] Figure 8 1 is a schematic structural diagram of a double-sided composite reinforced printing screen according to an exemplary embodiment.

[0086] Reference Figure 8 A double-sided composite reinforced printing screen includes: a first polymer material layer 701, a mesh 702, a primer layer 703, a PI layer 704 and a second polymer material layer 705.

[0087] The mesh 702 is connected to the first polymer material layer 701 and is located above the first polymer material layer 701. The base glue layer 703 is connected to the first polymer material layer 701 and the mesh 702 respectively and is located above the first polymer material layer 701 and the mesh 702. The PI layer 704 is connected to the mesh 702 and the base glue layer 703 respectively and is located above the mesh 702 and the base glue layer 703. The second polymer material layer 705 is connected to the PI layer 704 and is located above the PI layer 704.

[0088] In this embodiment, the first polymer material layer 701 is tightly connected to the mesh 702 through the base glue layer 703, and buffers pressure and protects the mesh from chemical erosion by virtue of its flexibility and wear resistance; the PI layer 704 has high temperature resistance and corrosion resistance, stabilizes the structure in a high-temperature printing environment, resists chemical reagents and enhances the overall strength; the top layer of the second polymer material layer 705 is laser etched to form an opening pattern and a convex-concave staggered structure, the opening pattern determines the ink transfer path and the printing pattern, the convex-concave structure optimizes the ink distribution transfer, the convex part supports and guides the ink, and the concave part stores the ink, so that the ink is evenly and accurately transferred under the pressure of the scraper; each layer of material relies on its own performance advantages and cooperates with each other to ensure that the screen can stably and efficiently complete high-precision printing tasks during the printing process.

[0089] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the contents disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed in this application.

[0090] It will be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A method for producing a double-sided composite reinforced printing screen, characterized in that: The steps include: Metal wire is used for weaving to obtain mesh, and then fixed on the mesh frame; Coating the bottom surface of the mesh with a polymer material to form a first polymer material layer on the mesh; etching the first polymer material layer by laser etching to form an opening pattern; Coating the top surface of the mesh with a PI composite material to obtain a PI layer; Coating the front surface of the PI layer with the polymer material to form a second polymer material layer; The second polymer material layer is etched by laser etching to obtain a double-sided composite reinforced printing screen.

2. The method for producing a double-sided composite reinforced printing screen according to claim 1, wherein: In the steps of weaving metal wires to obtain mesh and fixing it on the mesh frame: Weaving a plurality of metal warps and a plurality of metal wefts in an up-and-down interlaced manner to form the mesh; The mesh is stretched using a screen stretching machine and fixed on the screen frame after reaching a predetermined tension.

3. The method for producing a double-sided composite reinforced printing screen according to claim 2, wherein: In the step of coating the bottom surface of the mesh with a polymer material to form a first polymer material layer on the mesh: Pre-treating the mesh; Use a blade coater to plot the coating thickness; Cooperate with curing equipment to form the first polymer material layer.

4. The method for producing a double-sided composite reinforced printing screen according to claim 3, wherein: In the step of etching the first polymer material layer by laser etching to form an opening pattern: placing the screen frame with the first polymer material layer on an etching workbench; Input the designed pattern data into the control system of the laser etching equipment; The laser etching equipment parameters are adjusted and the laser etching equipment is started to complete the etching of the opening pattern.

5. The method for manufacturing a double-sided composite reinforced printing screen according to claim 4, wherein: In the step of coating the top surface of the mesh with a PI composite material to obtain a PI layer: Cleaning the mesh and checking its integrity; A PI composite material is selected for coating, and the PI layer is obtained using the curing equipment.

6. The method for manufacturing a double-sided composite reinforced printing screen according to claim 5, wherein: In the step of coating the front surface of the PI layer with the polymer material to form a second polymer material layer: Preprocessing the PI layer; The coating thickness is plotted using the blade coater; Cooperate with the curing equipment to form the second polymer material layer.

7. The method for manufacturing a double-sided composite reinforced printing screen according to claim 6, wherein: In the step of etching the second polymer material layer by laser etching to obtain a double-sided composite reinforced printing screen: placing the screen frame with the second polymer material layer on an etching workbench; Inputting the designed pattern data into the control system of the laser etching equipment; Adjusting the parameters of the laser etching equipment and starting the laser etching equipment to complete etching of the opening pattern; forming a plurality of convex structures and a plurality of concave structures on the second polymer material layer, wherein the convex structures and the concave structures are arranged alternately; Finally, a double-sided composite reinforced printing screen is obtained.

8. A double-sided composite reinforced printing screen, produced by the double-sided composite reinforced printing screen production method according to claim 1, characterized in that: It includes a first polymer material layer, a mesh, a primer layer, a PI layer and a second polymer material layer, the mesh is connected to the first polymer material layer and is located above the first polymer material layer, the primer layer is respectively connected to the first polymer material layer and the mesh, and is located above the first polymer material layer and the mesh, the PI layer is respectively connected to the mesh and the primer layer, and is located above the mesh and the primer layer, and the second polymer material layer is connected to the PI layer and is located above the PI layer.

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