All-steel main grid screen printing plate with special-shaped opening structure and production process of all-steel main grid screen printing plate

Abstract

The invention discloses an all-steel main grid screen printing plate with a special-shaped opening structure and a production process of the all-steel main grid screen printing plate, and aims to solve the problem of more slurry leakage points in the use process of the screen printing plate, and the development of a steel sheet screen printing plate can effectively improve the occurrence of the slurry leakage points. And most existing PI screen printing plates are provided with square openings and are single in structure, so that the use amount of silver paste cannot be further reduced. According to the technical scheme, the stainless steel plate is characterized by comprising a plate body, the plate body is a stainless steel plate with a full opening, a main grid groove is formed in the plate body, the main grid groove is a hexagonal opening at a pad point, the main grid groove is a square or rectangular opening at a joint, and the main grid groove is made of stainless steel materials through a laser drilling process. The hollow area of the plate surface is reduced, the strength is increased, development of thinner wire diameters can be supported, meanwhile, due to the fact that the surface smoothness is increased, certain holding is achieved for later printing performance, and the strength, the ductility and the surface roughness are all superior to those of an existing gauze plate product.

Description

TECHNICAL FIELD

[0001] The present application relates to a steel sheet printing plate, more particularly to a full-steel main grid plate with a special-shaped opening structure and a production process thereof. BACKGROUND

[0002] Direct plate making of screen printing refers to that an image is output to a screen printing plate by a computer, and an printing plate is formed after development, which is a digital production method of an image carrier in screen printing, and is output on a template or a screen directly through a computer control.

[0003] The screen is composed of a screen frame, a screen gauze with different mesh sizes made of stainless steel and a latex coated on the screen gauze. In the use process of the conventional PI screen plate, there are more slurry leakage points. The development of the steel sheet screen plate can effectively improve the occurrence of slurry leakage points. Moreover, the existing PI screen plate is mostly square opening, the structure is single, the pad point pattern change is limited, and the further reduction of the silver paste consumption cannot be achieved.

[0004] Therefore, a scheme needs to be proposed to solve this problem. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a full-steel main grid plate with a special-shaped opening structure and a production process thereof. The hollow area of the plate is reduced, the strength is increased, the development of a finer line diameter can be supported, and the strength, ductility and surface roughness are all better than those of the existing screen gauze screen plate product.

[0006] The above technical purpose of the present application is realized by the following technical scheme: a full-steel main grid plate with a special-shaped opening structure, comprising a plate body, the plate body is provided with a full opening of a stainless steel plate, a main grid slot is formed on the plate body, the main grid slot is a hexagonal opening at a pad point, the main grid slot is a square or rectangular opening at a connecting point, and the main grid slot is made of stainless steel material through a laser punching process.

[0007] The present application is further provided as follows: the width interval of the main grid slot as a whole is 10-40um, and the width interval of the pad point is 30-200um.

[0008] The present application is further provided as follows: the plate body is made of stainless steel material, and the thickness interval is 10-30um.

[0009] The above technical purpose of the present application is also realized by the following technical scheme: a production process of a full-steel main grid plate with a special-shaped opening structure, comprising the following steps:

[0010] Step S1: plate body substrate selection: selecting appropriate stainless steel material as the substrate;

[0011] Step S2: pattern design: according to the demand, design the screen pattern;

[0012] Step S3: composite lamination: the stainless steel plate body is bonded with the nylon screen to make a screen;

[0013] Step S4: laser engraving slotting: the screen prepared in step S3 is fixed by stretching, and a laser is used to melt the stainless steel at the opening according to the designed pattern to form a screen pattern.

[0014] The application further provides that the laser in step S4 is a femtosecond laser.

[0015] In step S3, the composite layers are PE film, gasket, stainless steel plate body, silicone paper, 2 layers of thick high-temperature cloth, and 200-mesh polyester screen, the gasket and the stainless steel plate body are downward, and the PE film is aligned with the line position during the composite, and is placed into the PE machine, the temperature is set to 150-160 degrees, and the time is 2-3 minutes, and the full-opening stainless steel screen is made after lamination.

[0016] The application further provides that the P face or S face or both faces of the screen are provided with PI film through hot pressing process.

[0017] In summary, the application has the following beneficial effects:

[0018] 1. The strength, ductility and surface roughness of the screen in the application are better than those of the existing screen screen product;

[0019] 2. The application can support the development of finer line diameter due to the reduction of the hollow area of the screen surface and the increase of the strength, and the increase of the surface smoothness also helps the later printing performance;

[0020] 3. The screen P face of the application increases a layer of PI film, which can optimize and relieve the friction between the steel plate surface and the silicon wafer, and improve the printing quality; the S face increases a layer of PI film, which can relieve the scraping of the steel plate surface by the scraper during printing, and prolong the service life of the screen; and the two faces increase PI film at the same time, which can have the above-mentioned two beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the structure of the main grid slotting pad point in the application;

[0023] Figure 3 It is a structural feature of the main grid slotting connection in the application. DETAILED DESCRIPTION

[0024] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The present application will be described in detail below in conjunction with the drawings.

[0028] A full-steel main grid screen plate with a special-shaped opening structure, as shown in Figures 1-3 , comprises a plate body, the plate body is provided with full openings, the plate body is provided with a main grid slot, the main grid slot is a hexagonal opening at a pad point, the main grid slot is a square or rectangular opening at a connecting point, and the main grid slot is made of stainless steel material through a laser drilling process.

[0029] The width interval of the main grid slot as a whole is 10-40um, the width interval of the pad point is 30-200um, the plate body is made of stainless steel material, and the stainless steel material can be selected from grades 304, 316 and 301, etc., and the thickness interval is 10-30um.

[0030] A production process of a full-steel main grid screen plate with a special-shaped opening structure, comprising the following steps:

[0031] Step S1: selection of plate body substrate: selecting appropriate stainless steel material as the substrate;

[0032] Step S2: pattern design: designing the screen plate pattern according to the requirements;

[0033] Step S3: composite lamination: bonding the stainless steel plate body and the nylon screen to make a screen plate;

[0034] Step S4: Laser engraving slotting: the screen prepared in step S3 is fixed, and a laser is used to melt the stainless steel at the opening according to the designed pattern to form a screen pattern.

[0035] The laser in step S4 is a femtosecond laser.

[0036] In step S3, the composite layers are PE film, gasket, stainless steel body, silicone oil paper, 2 layers of high-temperature cloth, and 200-mesh polyester screen, the gasket and the stainless steel body are placed with the front surface facing down, during the compounding, the PE film is aligned with the line position, and is placed into the PE machine, the temperature is set to 150-160 degrees, and the time is 2-3 minutes, and after laminating and compounding, a full-opening stainless steel screen is prepared.

[0037] The P face or the S face or both faces of the screen are provided with PI film through the hot pressing process, which is used to relieve the friction between the steel plate surface and the silicon wafer, and improve the printing quality; the S face is provided with an additional layer of PI film, which can relieve the scraping of the steel plate surface by the squeegee during printing, and prolong the service life of the screen; and the two faces are provided with PI film at the same time, which can have the above-mentioned two beneficial effects.

[0038] The present application adopts the process of compounding and laminating first and then laser slotting, the stainless steel sheet is taut during slotting, and the pattern is not easy to deform and twist after slotting. The existing slotting first and then laminating, the pattern is easy to deform when the screen is stressed, and at the same time, the method of using laser slotting in step S4 can adjust the width and depth of the slotting by controlling the power and frequency of the laser, which can adapt to different thickness and material of the stainless steel plate processing. At the same time, the screen in the present application can be made by using the process of nickel alloy electroforming in addition to the stainless steel laser slotting process, the pattern can be more diverse, the surface is smoother, and the printing performance is better.

[0039] The strength, ductility and surface roughness of the screen are better than those of the existing screen mesh screen product, the open area of the screen surface is reduced, the strength is increased, the development of thinner line diameter can be supported, and the surface smoothness is increased, which will also have certain help for the later printing performance.

[0040] After the implementation of the present scheme, the specific implementation effects are as follows:

[0041] The present scheme screen Conventional PI screen Grid line width tolerance ±0.2mm ±0.5mm Slurry leakage point None Part of the battery piece exists Printed wet weight (front main grid) 22-24mg 24-26mg Printed wet weight (back main grid) 30-32mg 33-35mg Screen life 70-80 million times 40-50 million times

[0042] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also regarded as the protection scope of the present application.

Claims

1. An all-steel main grid plate with a special-shaped opening structure, comprising a plate body, characterized in that: The plate body is a fully open stainless steel plate, and a main grid slot is opened on the plate body. The main grid slot is a hexagonal opening at the pad point, and the main grid slot is a square or rectangular opening at the connection point. The main grid slot is made of stainless steel material through a laser punching process.

2. The all-steel main grid with a special-shaped opening structure according to claim 1, characterized in that: The overall width of the main grid slot is in the range of 10um-40um, and the width of the pad point is in the range of 30-200um.

3. The all-steel main grid with a special-shaped opening structure according to claim 1, characterized in that: The plate body is made of stainless steel with a thickness ranging from 10 to 30 μm.

4. The production process of a full-steel main grid with a special-shaped opening structure according to claim 1, characterized in that: The following steps are involved: Step S1: Plate substrate selection: Select suitable stainless steel material as the substrate; Step S2: Pattern design: design the screen pattern according to the requirements; Step S3: Composite lamination: bonding the stainless steel plate body and the nylon mesh to make a screen plate; Step S4: Laser engraving and grooving: The screen produced in step S3 is stretched and fixed, and the stainless steel at the opening is melted through by laser according to the designed pattern to form the screen pattern.

5. The all-steel main grid plate with a special-shaped opening structure and its production process according to claim 4, characterized in that: The laser in step S4 is a femtosecond laser.

6. The all-steel main grid plate with a special-shaped opening structure and its production process according to claim 4, characterized in that: In step S3, the composite layers are PE film, gasket, stainless steel plate, silicone oil paper, 2 layers of thick high-temperature cloth, and 200-mesh polyester mesh. The gasket and stainless steel plate face down. During the composite process, the PE film is aligned with the drawn line and placed flat in the PE machine. The temperature is set to 150-160 degrees and the time is 2-3 minutes. After lamination, a fully open stainless steel screen is produced.

7. The all-steel main grid plate with a special-shaped opening structure and its production process according to claim 4, characterized in that: The P surface or the S surface or both surfaces of the screen are provided with a PI film through a hot pressing process.

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