CN110774741A - Screen printing plate for printing solar cell and protection process thereof - Google Patents
Screen printing plate for printing solar cell and protection process thereof Download PDFInfo
- Publication number
- CN110774741A CN110774741A CN201911058900.0A CN201911058900A CN110774741A CN 110774741 A CN110774741 A CN 110774741A CN 201911058900 A CN201911058900 A CN 201911058900A CN 110774741 A CN110774741 A CN 110774741A
- Authority
- CN
- China
- Prior art keywords
- screen
- printing plate
- screen printing
- grid lines
- scraper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007650 screen-printing Methods 0.000 title claims abstract description 44
- 238000007639 printing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 238000005299 abrasion Methods 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/168—Finishing the coated layer, e.g. drying, baking, soaking
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a screen printing plate for printing a solar cell piece and a protection process thereof, which have better wear resistance, can effectively prolong the service life and ensure the conversion efficiency of the solar cell piece; it includes the screen frame, be equipped with the screen cloth on the screen frame, be equipped with vertically and horizontally staggered's grid line in order to form pattern printing region on the screen cloth the frame outer fringe in pattern printing region on the screen cloth and all coat and have the abrasionproof layer on the knife face of scraping of screen cloth, just on the scraper face the abrasionproof layer coat in scrape the interval region of grid line on the knife face.
Description
Technical Field
The invention relates to the technical field of solar screens, in particular to a screen printing plate for printing a solar cell and a protection process thereof.
Background
With the wide application of solar cell technology, the printing quality of solar crystalline silicon cell sheets becomes a key for ensuring the conversion efficiency of solar cells, but because of the existing SE process, the screen used for printing the traditional solar crystalline silicon cell can not meet the market demand, the SE process is to etch grooves on a silicon wafer by laser firstly, and the residual dust on the silicon wafer is difficult to remove completely, so in the printing process of the silicon wafer, the dust can not only cause the abrasion of the contact part of the silicon chip and the printing surface of the screen printing plate, but also cause small sand holes and slurry leakage in the pattern printing area on the screen printing plate, directly affect the scraper surface of the screen printing plate (namely the reverse side of the screen printing plate), lead the photosensitive resist on the screen printing plate to be grinded and fallen off, therefore, printing virtual printing, grid breaking and the like are caused, the service life of the screen printing plate is shortened, and the conversion efficiency of the solar crystalline silicon cell is directly influenced.
Disclosure of Invention
Aiming at the problems, the invention provides the screen printing plate for printing the solar cell piece and the protection process thereof, which have better wear resistance, can effectively prolong the service life and ensure the conversion efficiency of the solar cell piece.
The technical scheme is as follows: it includes the screen frame, be equipped with the screen cloth on the screen frame, be equipped with vertically and horizontally staggered's grid line on the screen cloth in order to form pattern printing region, its characterized in that: the mesh cloth on the outer edge of the frame of the pattern printing area and the scraper surface of the mesh cloth are coated with anti-abrasion layers, and the anti-abrasion layers on the scraper surface are coated in the interval area of the grid lines on the scraper surface.
It is further characterized in that:
the anti-abrasion layer is an emulsion layer with abrasion resistance, and the thickness of the anti-abrasion layer is 3-7 microns;
the spacing distance between the grid lines on the scraper surface is 1 mm-2 mm;
the protection process of the screen printing plate for printing the solar cell slice comprises the following steps of laying screen cloth on a screen frame to form the screen printing plate, coating photosensitive glue on the printing surface of the screen printing plate, wherein the coating temperature is 30-40 ℃, and drying after coating is finished, and the protection process is characterized in that: it also includes the following steps:
s1, coating an anti-abrasion layer on the printing surface of the outer edge of the frame of the pattern printing area of the screen printing plate, and drying and curing after coating;
s2, coating an anti-abrasion layer on the scraper surface of the screen printing plate, after coating is finished, coating a film on the scraper surface, aligning grid lines on the film with grid lines on the scraper surface, wherein the line width of the grid lines on the film is not less than that of the grid lines on the scraper surface, and then carrying out ultraviolet exposure irradiation, so that the part, which is not covered by the grid lines on the film, on the scraper surface is solidified through ultraviolet irradiation;
s3, after the ultraviolet irradiation is finished, taking away the film, washing the scraper face with water, and then in the step 2, the anti-abrasion layer covered by the grid lines on the film on the scraper face is washed away by the water, so that the anti-abrasion layer is formed in the interval area of the grid lines on the scraper face.
It is further characterized in that:
the drying time after the coating is finished is 10-15 minutes;
in the step 2, the time for ultraviolet irradiation is 200 to 400 seconds.
The invention has the advantages that the anti-abrasion layer is coated on the outer edge of the frame of the pattern printing area of the screen printing plate and in the interval area of the grid line on the scraper surface of the screen printing plate, so that the condition that the printing surface and the scraper surface of the screen printing plate are abraded due to dust on a silicon wafer is avoided in the printing process, the abrasion resistance of the screen printing plate is enhanced, the service life of the screen printing plate is effectively prolonged, and the conversion efficiency of the solar crystalline silicon cell plate is ensured.
Drawings
FIG. 1 is a schematic view of the structure of the present invention (printing side of screen printing plate);
FIG. 2 is a schematic structural diagram (the scraper face of the screen printing plate) of the present invention;
fig. 3 is a partial cross-sectional view of individual grid lines on a screen scraping surface.
Detailed Description
As shown in fig. 1 to 3, the screen printing plate for printing the solar cell piece of the invention comprises a screen frame 1, a screen cloth 2 is arranged on the screen frame 1, grid lines 3 which are criss-cross are arranged on the screen cloth 2 to form a pattern printing area, an anti-abrasion layer 4 with the thickness of 3 to 7 microns is coated on the screen cloth 2 at the outer edge of the frame of the pattern printing area and on the scraping surface (namely the reverse side of the screen printing plate) of the screen cloth 2, the anti-abrasion layer 4 is an emulsion layer with abrasion resistance, the anti-abrasion layer 4 on the scraping surface is coated in the interval area of the grid lines on the scraping surface, and the anti-abrasion layer 4 is coated in the interval area of the grid lines on the scraping surface of the screen printing plate, so that the abrasion of the screen printing plate can be further reduced, and the problem of; the spacing distance between the grid lines 3 on the scraper face is 1.47 mm.
The protection process of the screen printing plate for printing the solar cell slice comprises the steps of paving a screen cloth 2 on a screen frame 1 to form the screen printing plate, coating photosensitive glue on the printing surface of the screen printing plate, wherein the coating temperature is 30-40 ℃, and drying is carried out after the coating is finished, and the drying time is 10-15 minutes;
it also includes the following steps:
s1, coating an anti-abrasion layer 4 with the thickness of 3-7 microns on the printing surface of the outer edge of the frame of the pattern printing area of the screen printing plate, and drying and curing for 10-15 minutes after coating;
s2, coating an anti-abrasion layer 4 with the thickness of 3-7 microns on the scraper surface of the screen printing plate, coating a film on the scraper surface after coating, aligning grid lines on the film with grid lines on the scraper surface, wherein the line width of the grid lines on the film is not less than that of the grid lines on the scraper surface, and then carrying out ultraviolet exposure irradiation for 200-400S, so that the part, which is not covered by the grid lines on the film, on the scraper surface is cured through ultraviolet irradiation;
and S3, after the ultraviolet irradiation is finished, taking away the film, and washing the scraper blade surface with water, wherein the wear-resistant layer covered by the grid lines on the film (namely the part which is not irradiated by the ultraviolet rays) on the scraper blade surface in the step 2 is washed away by the water, so that the wear-resistant layer is formed in the interval areas of the grid lines on the scraper blade surface.
In conclusion, the anti-abrasion layer is coated on the outer edge of the frame of the pattern printing area of the screen printing surface and the interval area of the grid line on the scraper surface, so that the anti-abrasion performance of the screen can be effectively enhanced, and the service life of the screen is prolonged.
Claims (6)
1. Screen printing plate for printing solar wafer, it includes the screen frame, be equipped with the screen cloth on the screen frame, be equipped with vertically and horizontally staggered's grid line on the screen cloth in order to form pattern printing region, its characterized in that: the mesh cloth on the outer edge of the frame of the pattern printing area and the scraper surface of the mesh cloth are coated with anti-abrasion layers, and the anti-abrasion layers on the scraper surface are coated in the interval area of the grid lines on the scraper surface.
2. The screen printing plate for printing a solar cell sheet according to claim 1, comprising: the anti-abrasion layer is an emulsion layer with abrasion resistance, and the thickness of the anti-abrasion layer is 3-7 microns.
3. The screen printing plate for printing a solar cell sheet according to claim 1, comprising: the spacing distance between the grid lines on the scraper surface is 1 mm-2 mm.
4. The protection process of the screen printing plate for printing the solar cell piece according to any one of claims 1 to 3, wherein screen cloth is laid on a screen frame to form the screen printing plate, photosensitive glue is coated on the printing surface of the screen printing plate, the coating temperature is 30-40 ℃, and the screen printing plate is dried after the coating is finished, and is characterized in that: it also includes the following steps:
s1, coating an anti-abrasion layer on the printing surface of the outer edge of the frame of the pattern printing area of the screen printing plate, and drying and curing after coating;
s2, coating an anti-abrasion layer on the scraper surface of the screen printing plate, after coating is finished, coating a film on the scraper surface, aligning grid lines on the film with grid lines on the scraper surface, wherein the line width of the grid lines on the film is not less than that of the grid lines on the scraper surface, and then carrying out ultraviolet exposure irradiation, so that the part, which is not covered by the grid lines on the film, on the scraper surface is solidified through ultraviolet irradiation;
s3, after the ultraviolet irradiation is finished, taking away the film, washing the scraper face with water, and then in the step 2, the anti-abrasion layer covered by the grid lines on the film on the scraper face is washed away by the water, so that the anti-abrasion layer is formed in the interval area of the grid lines on the scraper face.
5. The process for protecting a screen printing plate for printing a solar cell according to claim 4, wherein: and the drying time is 10-15 minutes after the coating is finished.
6. The process for protecting a screen printing plate for printing a solar cell according to claim 4, wherein: in the step 2, the time for ultraviolet irradiation is 200 to 400 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058900.0A CN110774741A (en) | 2019-10-31 | 2019-10-31 | Screen printing plate for printing solar cell and protection process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058900.0A CN110774741A (en) | 2019-10-31 | 2019-10-31 | Screen printing plate for printing solar cell and protection process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110774741A true CN110774741A (en) | 2020-02-11 |
Family
ID=69388465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911058900.0A Pending CN110774741A (en) | 2019-10-31 | 2019-10-31 | Screen printing plate for printing solar cell and protection process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110774741A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112356560A (en) * | 2020-11-04 | 2021-02-12 | 山西潞安太阳能科技有限责任公司 | Solar screen printing plate and preparation method thereof |
| CN112622405A (en) * | 2021-01-19 | 2021-04-09 | 仓和精密制造(苏州)有限公司 | Preparation method of screen printing plate |
| CN112677630A (en) * | 2021-01-19 | 2021-04-20 | 仓和精密制造(苏州)有限公司 | Preparation method of surface half-cut screen printing plate |
| CN112693214A (en) * | 2020-12-30 | 2021-04-23 | 苏州蓝昇精密制版科技有限公司 | Preparation method of printing screen with locally-stressed reinforced surface |
| CN115946438A (en) * | 2023-02-13 | 2023-04-11 | 英利能源发展(保定)有限公司 | Solar cell printing screen and printing method of solar cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112356560A (en) * | 2020-11-04 | 2021-02-12 | 山西潞安太阳能科技有限责任公司 | Solar screen printing plate and preparation method thereof |
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| CN112693214A (en) * | 2020-12-30 | 2021-04-23 | 苏州蓝昇精密制版科技有限公司 | Preparation method of printing screen with locally-stressed reinforced surface |
| CN112622405A (en) * | 2021-01-19 | 2021-04-09 | 仓和精密制造(苏州)有限公司 | Preparation method of screen printing plate |
| CN112677630A (en) * | 2021-01-19 | 2021-04-20 | 仓和精密制造(苏州)有限公司 | Preparation method of surface half-cut screen printing plate |
| CN112677630B (en) * | 2021-01-19 | 2022-06-14 | 仓和精密制造(苏州)有限公司 | Preparation method of surface half-cut screen printing plate |
| CN115946438A (en) * | 2023-02-13 | 2023-04-11 | 英利能源发展(保定)有限公司 | Solar cell printing screen and printing method of solar cell |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |