CN110978828A - Screen printing method for flat panel - Google Patents
Screen printing method for flat panel Download PDFInfo
- Publication number
- CN110978828A CN110978828A CN201911401809.4A CN201911401809A CN110978828A CN 110978828 A CN110978828 A CN 110978828A CN 201911401809 A CN201911401809 A CN 201911401809A CN 110978828 A CN110978828 A CN 110978828A
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- China
- Prior art keywords
- printing
- screen printing
- plate
- printing plate
- metal screen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The invention discloses a screen printing method for a flat plate, which comprises the following steps of S1, placing a printing flat plate on an object stage; s2, placing the metal screen printing plate provided with the corresponding pattern to be printed on a printing plate, wherein the printing pattern of the metal screen printing plate is opposite to the position to be printed of the printing plate, and clamping and fixing the metal screen printing plate and the printing plate by adopting a clamp, wherein the metal screen printing plate is made of hard metal or alloy thereof; s3, pouring printing ink on the surface of the metal screen, scraping the printing ink to the printing pattern of the metal screen by adopting a scraper, scraping the scraper to enable the printing ink to form a corresponding pattern on a printing plate, and keeping the pressure of the scraper to the corresponding position of the printing pattern of the metal screen constant; and S4, drying the printing flat plate to solidify the ink on the surface. By adopting the hard metal or the metal screen printing plate made of the alloy material, the screen printing plate has high mechanical strength, is not easy to wear and deform, has strong weather resistance, can not deviate from the printing position of a printing plate when being applied to screen printing, and has high printing precision.
Description
Technical Field
The invention relates to the field of screen printing, in particular to a screen printing method for a flat plate.
Background
The silk screen printing refers to that a silk screen is used as a plate base, and a silk screen printing plate with pictures and texts is manufactured by a photosensitive plate making method. The screen printing is composed of five major elements, namely a screen printing plate, a scraper, ink, a printing table and a printing stock. The basic principle that the meshes of the image-text part and the non-image-text part of the screen printing plate are permeable to ink and impermeable to ink is utilized to print. When printing, ink is poured into one end of the screen printing plate, a scraper plate is used for applying a certain pressure to the ink position on the screen printing plate, meanwhile, the scraper plate moves towards the other end of the screen printing plate at a constant speed, and the ink is extruded onto a printing stock from meshes of the image-text part by the scraper plate in the moving process. For example, in the Chinese patent with application number 2013107110417, named as a screen printing method, a screen printing plate is manufactured through a direct plate making method, and then the water-based foaming ink is printed on paper from the hollow part of the screen printing plate by a screen printing machine scraper; finally, feeding the paper printed with the water-based foaming ink into a heating drying tunnel for heating to foam the water-based foaming ink; finally, drying; the defect of screen printing on the cloth is overcome, and the improvement on the three aspects of screen plate making process, adjustment of the operation parameters of the screen printing machine and setting of the heating parameters of the heating drying channel is matched, so that the foaming printing ink for screen printing can form clear line effect. However, the flexible printing screen is still adopted, because the screen is not tightly attached to the surface of the printing stock during printing, the screen deforms under the pressure applied by the scraper so that the ink on the screen contacts the printing stock, the printing structure easily causes damage to a screen printing plate, the service life of the printing screen is short, the printing effect is influenced, the screen completes printing under the condition that the screen deforms, and when meshes deform in the printing process, the precision of the printing position is influenced. Therefore, there is a need for a screen printing method for a flat panel, which is less likely to damage a printing screen and has high printing position accuracy.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a screen printing method for a flat plate, which is not easy to damage a printing screen and has high printing position precision.
The purpose of the invention is realized by adopting the following technical scheme:
a screen printing method for a flat panel, comprising the steps of:
s1, placing the printing plate on an object stage;
s2, placing the metal screen printing plate provided with the corresponding pattern to be printed on a printing plate, wherein the printing pattern of the metal screen printing plate is opposite to the position to be printed of the printing plate, and clamping and fixing the metal screen printing plate and the printing plate by adopting a clamp, wherein the metal screen printing plate is made of hard metal or alloy thereof;
s3, pouring printing ink on the surface of the metal screen printing plate, scraping the printing ink to the printing pattern of the metal screen printing plate by adopting a scraper, scraping the scraper to enable the printing ink to form a corresponding pattern on a printing plate, keeping the pressure of the scraper to the corresponding position of the printing pattern of the metal screen printing plate constant, enabling the included angle between the knife edge of the scraper and the metal screen printing plate to be 45-75 degrees, and enabling the Shore hardness of the scraper to be more than 60 degrees;
and S4, drying the printing flat plate to solidify the ink on the surface.
In one embodiment of the present invention, the printing pattern of the metal screen is composed of a plurality of micro holes, and the micro holes are processed by laser drilling.
In one embodiment of the invention, the upper surface of the metal screen is provided with a groove for containing ink, and the micro-holes are positioned at the bottom of the groove.
In one embodiment of the invention, each microwell is spaced from the sidewall of the recess adjacent to it by a distance greater than 0.5 cm.
In one embodiment of the invention, the side walls and the bottom surface of the groove are smoothly transitioned.
In one embodiment of the invention, the distance between adjacent micropores is 5 to 10 μm.
In one embodiment of the invention, the squeegee is a fluorinated rubber and the shore hardness of the squeegee is 95 °.
In one embodiment of the present invention, the bottom surface and each side surface of the metal screen are rounded.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the hard metal or the metal screen printing plate made of the alloy material, the screen printing plate has high mechanical strength, is not easy to wear and deform, has strong weather resistance, can not deviate from the printing position of a printing plate when being applied to screen printing, and has high printing precision.
Drawings
Fig. 1 is a schematic structural view of a screen printing method for a flat panel in the present embodiment.
In the figure: 10. a printing plate; 20. a metal screen printing plate; 201. a groove; 202. and (4) micro-pores.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A screen printing method for a flat panel, comprising the steps of:
s1, placing the printing plate 10 on an object stage;
s2, placing the metal screen 20 provided with the corresponding pattern to be printed on the printing plate 10, wherein the printed pattern of the metal screen 20 is opposite to the position to be printed on the printing plate 10, and clamping and fixing the metal screen 20 and the printing plate 10 by adopting a clamp, wherein the metal screen 20 is made of hard metal or alloy thereof;
s3, pouring printing ink on the surface of the metal screen 20, scraping the printing ink to the printing pattern of the metal screen 20 by a scraper, scraping the scraper to enable the printing ink to form a corresponding pattern on the printing plate 10, keeping constant the pressure of the scraper to the corresponding position of the printing pattern of the metal screen 20, setting the included angle between the edge of the scraper and the metal screen 20 at 45-75 degrees, and setting the Shore hardness of the scraper to be more than 60 degrees;
s4, the printing plate 10 is dried to solidify the ink on the surface.
The scraper with Shore hardness larger than 60 degrees is adopted, the scraper is not easy to deform to offset stress, and labor is saved during processing. The scraper is made of fluorinated rubber and is wear-resistant, when the Shore hardness of the scraper is 95 degrees, the service life of the scraper can be continuously produced for 173 days, and when the Shore hardness of the scraper is 97 degrees, the print marks of the printing stock are not as clear as those of the scraper with the Shore hardness of 95 degrees.
The material of the metal screen 20 is a conventional hard metal or alloy thereof, such as tungsten, molybdenum, and alloy thereof. For example, the tungsten plate can reach 0.5 mm by warm pressing, and has enough mechanical strength, strong weather resistance and laser processing.
The printing pattern of the metal screen 20 is composed of a plurality of micro holes 202, the micro holes 202 are processed by laser drilling, and the distance between adjacent micro holes 202 is 5-10 μm. The flexible silk screen is suitable for printing ink with different viscosities and large range, and printing definition of the marks is guaranteed, the minimum silk screen line diameter can only reach 25 mu m in order to guarantee strength of the silk screen, so that the silk screen with the size can not be completely flatly covered when the printing ink with large viscosity is used for silk screen printing, and partial patterns of the printed marks are lost.
In order to save the amount of ink, the upper surface of the metal screen plate 20 is provided with a groove 201 for containing ink, the micropores 202 are located at the bottom of the groove 201, the ink is poured into the groove 201, and the ink is scraped by a scraper, so that the ink is prevented from being adhered to other non-transmission surfaces. To ensure that no ink enters due to the part of the micro-holes 202 located at the edge of the groove 201 during the ink scraping process of the scraper in the groove 201, the distance between each micro-hole 202 and the side wall of the groove 201 adjacent to the micro-hole is more than 0.5 cm.
The side wall and the bottom surface of the groove 201 are in smooth transition, so that ink is prevented from remaining in a sanitary dead angle formed by the groove 201, and the groove 201 is convenient to clean.
In order to prevent the corners of the bottom surface of the metal screen 20 from scratching the surface of the printing plate 10 during placement, the bottom surface and the side surfaces of the metal screen 20 are in rounded transition.
The above embodiments are only some of the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. A screen printing method for a flat panel, comprising the steps of:
s1, placing the printing plate on an object stage;
s2, placing a metal screen printing plate provided with a corresponding pattern to be printed on the printing plate, wherein the printing pattern of the metal screen printing plate is opposite to the position to be printed of the printing plate, and clamping and fixing the metal screen printing plate and the printing plate by adopting a clamp, wherein the metal screen printing plate is made of hard metal or alloy thereof;
s3, pouring printing ink onto the surface of the metal screen printing plate, scraping the printing ink to the printing pattern of the metal screen printing plate by adopting a scraper, scraping the scraper to enable the printing ink to form a corresponding pattern on the printing flat plate, keeping the pressure of the scraper to the corresponding position of the printing pattern of the metal screen printing plate constant, enabling the included angle between the knife edge of the scraper and the metal screen printing plate to be 45-75 degrees, and enabling the Shore hardness of the scraper to be more than 60 degrees;
and S4, drying the printing flat plate to solidify the ink on the surface of the printing flat plate.
2. A screen printing method for a flat panel as claimed in claim 1, wherein the printing pattern of the metal screen is composed of a plurality of minute holes which are processed by laser drilling.
3. A screen printing method for a flat panel as claimed in claim 2, wherein said metal screen is provided with a recess for receiving ink on an upper surface thereof, and said minute hole is provided at a bottom of said recess.
4. A screen printing method for a flat panel as claimed in claim 3, wherein each of said minute holes is spaced from a side wall of the recess adjacent thereto by a distance of more than 0.5 cm.
5. A screen printing method for a flat panel as claimed in claim 3, wherein the side walls of the recess are smoothly transitioned with the bottom surface.
6. A screen printing method for a flat panel as claimed in claim 4, wherein the distance between adjacent ones of said minute holes is 5 to 10 μm.
7. A screen printing method for a flat panel according to claim 1, wherein the squeegee is a fluorinated rubber, and the shore hardness of the squeegee is 95 °.
8. A screen printing method for flat panels as claimed in claim 1, wherein the bottom surface and the side surfaces of the metal screen are rounded off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401809.4A CN110978828A (en) | 2019-12-31 | 2019-12-31 | Screen printing method for flat panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911401809.4A CN110978828A (en) | 2019-12-31 | 2019-12-31 | Screen printing method for flat panel |
Publications (1)
| Publication Number | Publication Date |
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| CN110978828A true CN110978828A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201911401809.4A Pending CN110978828A (en) | 2019-12-31 | 2019-12-31 | Screen printing method for flat panel |
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| CN108859397A (en) * | 2018-08-30 | 2018-11-23 | 广东工业大学 | A kind of method and apparatus using silk-screen printing production electrode |
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| CN109605919A (en) * | 2018-12-29 | 2019-04-12 | 江苏日托光伏科技股份有限公司 | A kind of printing process of brush coating halftone and MWT photovoltaic module conducting resinl |
| CN109760439A (en) * | 2019-02-27 | 2019-05-17 | 村上精密制版（昆山）有限公司 | A kind of compound silk-screen halftone for realizing higher printing position precision |
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2019
- 2019-12-31 CN CN201911401809.4A patent/CN110978828A/en active Pending
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| CN101555607A (en) * | 2009-04-20 | 2009-10-14 | 昆山美微电子科技有限公司 | Electroforming metal film mesh plate for printing touch mesh spacing contacts |
| CN102092180A (en) * | 2009-12-10 | 2011-06-15 | 中国人民银行印制科学技术研究所 | Metal porous plate and preparation method thereof |
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| CN103381700A (en) * | 2013-06-24 | 2013-11-06 | 赫日光电（苏州）有限公司 | Composite screen printing plate capable of reducing cost |
| CN103386810A (en) * | 2013-06-24 | 2013-11-13 | 赫日光电（苏州）有限公司 | Cost-saving broad-width composite screen printing plate |
| CN103770452A (en) * | 2014-01-26 | 2014-05-07 | 昆山允升吉光电科技有限公司 | Metal wire mesh |
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| CN109421365A (en) * | 2017-09-04 | 2019-03-05 | 通威太阳能（成都）有限公司 | A kind of minute pattern of solar battery positive electrode ties printing screen plate without net |
| CN207449369U (en) * | 2017-11-15 | 2018-06-05 | 沃苏特电子科技（苏州）有限公司 | A kind of solar battery sheet silk-screen halftone |
| CN108859397A (en) * | 2018-08-30 | 2018-11-23 | 广东工业大学 | A kind of method and apparatus using silk-screen printing production electrode |
| CN208698161U (en) * | 2018-08-30 | 2019-04-05 | 广东工业大学 | A kind of device using silk-screen printing production electrode |
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Application publication date: 20200410 |
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