CN110126439B - Manufacturing method of complementary screen printing plate - Google Patents
Manufacturing method of complementary screen printing plate Download PDFInfo
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- CN110126439B CN110126439B CN201910481898.1A CN201910481898A CN110126439B CN 110126439 B CN110126439 B CN 110126439B CN 201910481898 A CN201910481898 A CN 201910481898A CN 110126439 B CN110126439 B CN 110126439B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
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Abstract
The invention discloses a manufacturing method of a complementary screen printing plate, which comprises the following specific steps: 1) drawing and compounding; 2) performing screen printing plate washing treatment; 3) coating for the first time; 4) exposing and developing for the first time; 5) plating a metal layer: 6) and back washing; 7) coating for the second time; 8) and carrying out exposure and development for the second time. Through the mode, according to the manufacturing method of the complementary type screen printing plate, the metal layer in the non-printing area in the middle of the lines has super-strong wear resistance and strong printing resistance, the printing life of the screen printing plate can be greatly prolonged, meanwhile, the metal layer plays a role in fixing the net knots, deformation quantities of a silk screen and a graph are greatly reduced, the screen printing plate prints for 20 ten thousand times, the deformation quantities can be still controlled within 10 microns, and the printing quality can be greatly improved.
Description
Technical Field
The invention relates to the technical field of printing elements such as solar cells, high-precision electronic components and the like, in particular to a manufacturing method of a complementary screen printing plate.
Background
With the increasing demand of energy, the problem of energy becomes a significant problem restricting the development of international socioeconomic, which prompts people to continuously explore new energy, wherein the research of solar energy occupies an important position. Solar cells have been rapidly developed in recent years as one of core technologies for solar research, and the improvement of conversion efficiency of solar cells is a main research object of current solar cells, and besides requirements of cell substrate material selection and optimization, cell manufacturing process improvement and the like, the conversion efficiency of solar cells can also be improved by adopting a proper high-precision high-stability printing method. The use of printing screens during the printing of solar cells has a great influence on the final printing quality.
The traditional manufacturing method of the composite screen printing plate for printing the solar cell slice generally comprises the steps of coating a layer of photosensitive emulsion on a stretched silk screen, uniformly adhering the dried emulsion on the silk screen, then utilizing the shading of a film pattern to expose on an exposure machine, solidifying the light leaking part of the pattern under the action of a photosensitizer, solidifying the shading part, washing the uncured emulsion during developing, and obtaining a required pattern on the screen printing plate surface, thereby completing the transfer of the pattern. The screen printing plate manufactured by the method has certain limitations: the emulsion has poor wear resistance, and the friction between the emulsion and a substrate during printing is easy to wear and leak slurry, so that the printing quality of the surface is influenced, and the service life is prolonged; the emulsion is greatly influenced by the temperature and the humidity of the external environment and the like, and the silk screen is easy to deform after being extruded for a long time, so that the integral deformation of the screen printing plate is large, and the integral printing quality is influenced. In combination with the above limitations, we are constantly searching for new processes for making screens for printing.
Disclosure of Invention
The invention mainly solves the technical problem of providing a manufacturing method of a complementary screen printing plate, wherein a metal layer in a non-printing area in the middle of a line has super-strong wear resistance and strong printing resistance, the service life of the screen printing plate can be greatly prolonged, and meanwhile, the metal layer plays a role in fixing a net knot, so that the deformation quantity of a silk screen and a graph is greatly reduced, the screen printing plate prints for 20 ten thousand times, the deformation quantity can still be controlled within 10 mu m, and the printing quality can be greatly improved.
In order to solve the technical problems, the invention adopts a technical scheme that: the method for manufacturing the complementary screen printing plate comprises the following specific steps:
1) and (3) pulling and compounding: firstly, stretching a polyester net, standing, fixing a polyester gauze on a net frame to form the polyester net, then compounding a steel wire mesh to the middle area of the polyester net by using hot melt adhesive to form a composite gauze, obtaining certain silk mesh tension under the action of a net jacking machine, and fixing the composite gauze on another net frame to obtain a composite screen printing plate;
2) and (3) screen printing plate washing treatment: soaking the composite screen plate by using a surface treatment solution, removing a surface oxide layer of the steel wire mesh on the composite screen plate, roughening the surface of the steel wire mesh, and cleaning the roughened steel wire mesh by using a cleaning solution to remove grease and impurities on the surface of the steel wire mesh;
3) coating for the first time: selecting a photosensitive emulsion A, coating the photosensitive emulsion A on the composite gauze of the P surface in a blade coating mode, putting the composite gauze into an oven and drying for 5-30min to form an emulsion layer A on the composite gauze;
4) first exposure and development: carrying out an exposure process on the coated and dried composite screen, attaching a black film with the line width of 100-200 mu m to the corresponding position of the P-surface composite screen, shielding the area outside the line width by the black film, setting exposure energy and time to carry out a first exposure operation, developing and drying the exposed composite screen, and completing the first exposure operation to obtain a layout with an emulsion layer A at the line width;
5) plating a metal layer: plating an alloy metal layer on the P-surface composite gauze, and masking the periphery by using a mask plate;
6) and (3) washing: carrying out plate washing treatment on the composite screen printing plate plated with the metal layer, soaking the composite screen printing plate in treatment liquid for 5-10min, washing off the emulsion layer A at the wide line position by using a water gun, and drying the screen printing plate to finish back washing;
7) and (3) second coating: taking the composite screen plate after the back washing to the coating process again, selecting a photosensitive emulsion B, coating the photosensitive emulsion B on the upper surface of the metal layer in a blade coating mode, and putting the metal layer into an oven to be dried for 5-30min to form an emulsion layer B;
6) second exposure and development: and (3) carrying out an exposure process again on the composite screen printing plate which is coated and dried for the second time, pasting a film with the line width of 15-50um on the corresponding position of the P-surface composite screen gauze, setting exposure energy and time to carry out exposure operation for the second time, developing and drying the exposed composite screen printing plate, completing the exposure operation for the second time, forming a thin line convex opening, and completing the printing screen printing plate.
In a preferred embodiment of the invention, the drying temperature in the oven is 30-50 ℃.
In a preferred embodiment of the present invention, the metal layer is formed by magnetron sputtering or vacuum coating.
In a preferred embodiment of the present invention, the material of the metal layer is niobium, nickel or copper.
In a preferred embodiment of the present invention, the thickness of the metal layer is 1-10 um.
The invention has the beneficial effects that: according to the manufacturing method of the complementary screen printing plate, the metal layer in the non-printing area in the middle of the lines has super-strong wear resistance and strong printing resistance, the service life of the screen printing plate can be greatly prolonged, meanwhile, the metal layer plays a role in fixing the net knots, deformation of a silk screen and a graph is greatly reduced, screen printing is carried out for 20 ten thousand times, the deformation can be still controlled within 10 microns, and the printing quality can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a side view of a preferred embodiment of a non-flat screen printing plate according to the present invention;
FIG. 2 is a plan view of FIG. 1;
the labels in the figures are: 1. composite gauze 2, metal layer 3, emulsion layer B, 4 and fine lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention comprises the following steps:
a manufacturing method of a complementary screen printing plate comprises the following specific steps:
1) and (3) pulling and compounding: firstly, stretching a polyester net, standing, fixing a polyester gauze on a net frame to form the polyester net, then compounding a steel wire mesh to the middle area of the polyester net by using hot melt adhesive to form a composite gauze, obtaining certain silk mesh tension under the action of a net jacking machine, and fixing the composite gauze on another net frame to obtain a composite screen printing plate;
2) and (3) screen printing plate washing treatment: soaking the composite screen plate by using a surface treatment solution, removing a surface oxide layer of the steel wire mesh on the composite screen plate, roughening the surface of the steel wire mesh, and cleaning the roughened steel wire mesh by using a cleaning solution to remove grease and impurities on the surface of the steel wire mesh;
3) coating for the first time: selecting a photosensitive emulsion A, coating the photosensitive emulsion A on the composite gauze of the P surface in a blade coating mode, putting the composite gauze into a drying oven at the temperature of 30-50 ℃ for drying for 5-30min, and forming an emulsion layer A on the composite gauze;
4) first exposure and development: carrying out an exposure process on the coated and dried composite screen, attaching a black film with the line width of 100-200 mu m to the corresponding position of the P-surface composite screen, shielding the area outside the line width by the black film, setting exposure energy and time to carry out a first exposure operation, developing and drying the exposed composite screen, and completing the first exposure operation to obtain a layout with an emulsion layer A at the line width;
5) plating a metal layer: plating an alloy metal layer on the P-surface composite gauze, and masking the periphery by using a mask plate;
6) and (3) washing: carrying out plate washing treatment on the composite screen printing plate plated with the metal layer, soaking the composite screen printing plate in treatment liquid for 5-10min, washing off the emulsion layer A at the wide line position by using a water gun, and drying the screen printing plate to finish back washing;
7) and (3) second coating: taking the composite screen plate after the back washing to the coating process again, selecting a photosensitive emulsion B, coating the photosensitive emulsion B on the upper surface of the metal layer in a blade coating mode, and drying in an oven at the temperature of 30-50 ℃ for 5-30min to form an emulsion layer B;
6) second exposure and development: and (3) carrying out an exposure process again on the composite screen printing plate which is coated and dried for the second time, pasting a film with the line width of 15-50um on the corresponding position of the P-surface composite screen gauze, setting exposure energy and time to carry out exposure operation for the second time, developing and drying the exposed composite screen printing plate, completing the exposure operation for the second time, forming a thin line convex opening, and completing the printing screen printing plate.
As shown in fig. 1 and 2, the structure of the non-flat-surface printing screen comprises a composite screen 1, a metal layer 2, an emulsion layer B3 and fine lines 4. The metal layer 2 is adopted to fill the non-printing area in the middle of the lines, the conventional screen printing plate structure is broken, the emulsion layer A is replaced, and the wear resistance is super strong; meanwhile, the plated metal layer 2 can fix the mesh knots of the crossed warps and wefts of the silk screen, and the deformation of the metal layer is small due to external influence factors, so that the integral deformation of the screen printing plate can be reduced.
In the above, the metal layer 2 is formed by magnetron sputtering or vacuum coating; the thickness of the metal layer 2 is 1-10 um. The material of the metal layer 2 is niobium, nickel or copper.
Compared with the prior art, the manufacturing method of the complementary screen printing plate has the following advantages:
1) the metal layer in the non-printing area in the middle of the lines has super-strong wear resistance and strong printing resistance, the printing life of the screen printing plate can be greatly prolonged, the service life of the conventional screen printing plate is about 5 ten thousand times, and the service life of the screen printing plate manufactured by the method can reach more than 20 ten thousand times;
2) the metal layer plays a role in fixing the net knots, so that the deformation quantity of the silk screen and the graph is greatly reduced, the deformation quantity reaches more than 15um under the action of the external environment and the extrusion force after the conventional screen printing is carried out for more than 2 ten thousand times, and the deformation quantity can still be controlled within 10um after the screen printing is carried out for 20 ten thousand times, so that the printing quality can be greatly improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A manufacturing method of a complementary screen printing plate is characterized by comprising the following specific steps:
1) and (3) pulling and compounding: firstly, stretching a polyester net, standing, fixing a polyester gauze on a net frame to form the polyester net, then compounding a steel wire mesh to the middle area of the polyester net by using hot melt adhesive to form a composite gauze, obtaining certain silk mesh tension under the action of a net jacking machine, and fixing the composite gauze on another net frame to obtain a composite screen printing plate;
2) and (3) screen printing plate washing treatment: soaking the composite screen plate by using a surface treatment solution, removing a surface oxide layer of the steel wire mesh on the composite screen plate, roughening the surface of the steel wire mesh, and cleaning the roughened steel wire mesh by using a cleaning solution to remove grease and impurities on the surface of the steel wire mesh;
3) coating for the first time: selecting a photosensitive emulsion A, coating the photosensitive emulsion A on the composite gauze of the P surface in a blade coating mode, putting the composite gauze into an oven and drying for 5-30min to form an emulsion layer A on the composite gauze;
4) first exposure and development: carrying out an exposure process on the coated and dried composite screen, attaching a black film with the line width of 100-200 mu m to the corresponding position of the P-surface composite screen, shielding the area outside the line width by the black film, setting exposure energy and time to carry out a first exposure operation, developing and drying the exposed composite screen, and completing the first exposure operation to obtain a layout with an emulsion layer A at the line width;
5) plating a metal layer: plating an alloy metal layer on the P-surface composite gauze, and masking the periphery by using a mask plate;
6) and (3) washing: carrying out plate washing treatment on the composite screen printing plate plated with the metal layer, soaking the composite screen printing plate in treatment liquid for 5-10min, washing off the emulsion layer A at the wide line position by using a water gun, and drying the screen printing plate to finish back washing;
7) and (3) second coating: taking the composite screen plate after the back washing to the coating process again, selecting a photosensitive emulsion B, coating the photosensitive emulsion B on the upper surface of the metal layer in a blade coating mode, and putting the metal layer into an oven to be dried for 5-30min to form an emulsion layer B;
6) second exposure and development: and (3) carrying out an exposure process again on the composite screen printing plate which is coated and dried for the second time, pasting a film with the line width of 15-50um on the corresponding position of the P-surface composite screen gauze, setting exposure energy and time to carry out exposure operation for the second time, developing and drying the exposed composite screen printing plate, completing the exposure operation for the second time, forming a thin line convex opening, and completing the printing screen printing plate.
2. The method for manufacturing a complementary screen printing plate according to claim 1, wherein the drying temperature in the oven is 30-50 ℃.
3. The method for manufacturing a complementary screen printing plate according to claim 1, wherein the metal layer is formed by magnetron sputtering or vacuum coating.
4. The method of claim 3, wherein the metal layer is made of niobium, nickel or copper.
5. The method for manufacturing a complementary screen printing plate according to claim 4, wherein the thickness of the metal layer is 1-10 um.
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| CN201910481898.1A CN110126439B (en) | 2019-06-04 | 2019-06-04 | Manufacturing method of complementary screen printing plate |
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| CN110126439B true CN110126439B (en) | 2020-09-29 |
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| DE102009024874A1 (en) * | 2009-06-09 | 2010-12-16 | Nb Technologies Gmbh | Screen printing form for use in printing medium, during screen printing and porous printing, has lug whose height in area of recesses is less than height of screen printing pattern carrier and pattern, respectively |
| CN205220028U (en) * | 2015-12-21 | 2016-05-11 | 卫巍 | Screen printing plate |
| CN106494074B (en) * | 2016-09-30 | 2021-12-10 | 卫巍 | Preparation method of screen printing plate |
| CN107672285A (en) * | 2017-09-04 | 2018-02-09 | 沃苏特电子科技（苏州）有限公司 | A kind of secondary coating process of silk screen |
| CN108688299B (en) * | 2018-04-26 | 2024-02-23 | 东莞福哥电子有限公司 | Multi-film screen printing plate and manufacturing method thereof |
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