CN112428661A - Method for manufacturing solar screen printing plate through laser direct writing imaging - Google Patents
Method for manufacturing solar screen printing plate through laser direct writing imaging Download PDFInfo
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- CN112428661A CN112428661A CN202011266903.6A CN202011266903A CN112428661A CN 112428661 A CN112428661 A CN 112428661A CN 202011266903 A CN202011266903 A CN 202011266903A CN 112428661 A CN112428661 A CN 112428661A
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- printing plate
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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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- 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
- B41C1/145—Forme preparation for stencil-printing or silk-screen printing by perforation using an energetic radiation beam, e.g. a laser
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- Optics & Photonics (AREA)
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- Photosensitive Polymer And Photoresist Processing (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The invention discloses a method for manufacturing a solar screen by laser direct writing imaging, which comprises a plurality of flow processes of manufacturing a water film adhesive film, coating the screen, exposing the screen and soaking and washing, and introduces a laser direct writing imaging technology to replace the original film exposure method to expose, soak and wash a photosensitive emulsion to form a hollow pattern.
Description
Technical Field
The invention relates to the technical field of solar screen printing plate manufacturing, in particular to a method for manufacturing a solar screen printing plate by laser direct writing imaging.
Background
The solar screen printing plate is a template used for printing a solar cell, and is divided into a fine grid and a main grid to form criss-cross hollow patterns to be printed. The manufacturing method of the solar screen printing plate comprises the steps of coating photosensitive emulsion on a metal screen, covering a film with required patterns on the screen printing plate, and dividing the photosensitive emulsion coating area of the screen printing plate into a photosensitive area and a non-photosensitive area. The screen printing plate covered with the film is placed on an exposure machine for exposure, then soaked in developing solution or clear water and developed by a water gun or an automatic developing machine, so that the photosensitive emulsion in the non-photosensitive area falls off to form a hollow pattern, and the photosensitive emulsion in the photosensitive area is subjected to cross-linking and curing, thereby achieving the purpose of plate making.
With the technical development, an SE battery technology appears in the field of solar batteries, and through carrying out heavy doping on the contact part of a metal grid line and a silicon wafer and carrying out light doping on the position between electrodes, the composition of a diffusion layer can be reduced, the contact resistance of the metal electrode and silicon is reduced, so that the short-circuit current, the open-circuit voltage and the filling seal are better improved, and the battery efficiency is greatly improved. Therefore, the size of the SE screen needs to be accurately controlled in the manufacturing process, and the fine grid and the heavily doped region are accurately aligned in the printing process.
The film used in the prior art platemaking process is a polymer sheet with a pattern thereon. The size of the device is greatly influenced by temperature and humidity and is constantly in change. And the humiture in the dustless workshop of conventionality is difficult accurate control, and the exposure machine can have in the use simultaneously and generate heat and the intensification problem, leads to half tone size to be difficult to accurate control in the actual production process. In addition, the film is directly contacted with the glass surface and is easy to scratch, and slight scratch can cause poor exposure of the screen printing plate, so that the production yield is reduced.
Disclosure of Invention
Aiming at the problems, the invention introduces a laser direct-writing imaging technology to replace the original film exposure method, and simultaneously introduces water film manufacturing equipment and an improved coating method to ensure the manufacturing yield, thereby disclosing a method for manufacturing a solar screen by laser direct-writing imaging.
The specific technical scheme is as follows:
a method for manufacturing a solar screen printing plate by laser direct writing imaging is characterized by comprising the following steps:
(1) uniformly coating the photosensitive emulsion on a polyethylene film, drying, and preparing a photosensitive emulsion film with uniform thickness and good cleanliness, namely a water film adhesive film;
(2) coating the water film adhesive film obtained in the step (1) on a screen printing plate by using an automatic coating machine, and drying;
(3) placing the screen printing plate coated in the step (2) on LDI equipment;
(4) inputting a pre-designed plate making drawing into LDI equipment;
(5) the LDI equipment emits laser according to the input plate making drawing to carry out high-precision scanning on the screen plate, so that the laser scanning part area on the screen plate is exposed, and the emulsion is crosslinked and cured; the non-scanned part of the laser is not exposed;
(6) and after the screen printing plate is exposed, soaking the screen printing plate in developing solution or clear water, and washing the screen printing plate by using a water gun or an automatic developing machine to enable the photosensitive emulsion in the unexposed area to fall off to form a hollow pattern, and after the screen printing plate is washed, obtaining the solar screen printing plate.
The method for manufacturing the solar screen printing plate by laser direct writing imaging comprises the step (1) of controlling the drying temperature to be 40-85 ℃.
The method for manufacturing the solar screen printing plate through laser direct writing imaging comprises the step (2) of controlling the drying temperature to be 40-80 ℃ and controlling the drying time to be 20-60 min.
The method for manufacturing the solar screen printing plate through laser direct writing imaging comprises the step (1) of performing through a water film manufacturing device, wherein the water film manufacturing device comprises an unwinding roller, a winding roller, a guide screw and a static eliminator, the unwinding roller and the winding roller are respectively arranged on two sides of the water film manufacturing device, and the guide screw and the static eliminator are sequentially arranged on one side of the winding roller.
In the method for manufacturing the solar screen printing plate by laser direct writing imaging, the polyethylene film is unreeled and reeled by the unreeling roller and the reeling roller, and static electricity is eliminated simultaneously in the unreeling and reeling processes, so that dust particles are prevented from being adsorbed on the polyethylene film; and (3) flatly paving the photosensitive emulsion on a polyethylene film in a large area, and drying the photosensitive emulsion after passing through a guide screw rod in the rolling and unreeling process, so that the coating thickness of the emulsion is uniform.
In the method for manufacturing the solar screen printing plate by laser direct writing imaging, the chemical surface of the water film adhesive film faces outwards when the solar screen printing plate is rolled.
The method for manufacturing the solar screen printing plate by laser direct writing imaging comprises the step (2), wherein the automatic coating machine comprises a coating station, a coating cutter head and a cutter head stroke rod, and the cutter head stroke rod is arranged above the coating station, is connected with the coating cutter head and controls the coating cutter head to move horizontally.
In the step (2), firstly, the screen is fixed at the coating station, the water film adhesive film prepared in the step (1) is attached, and then, the cutter head stroke rod is started to drive the coating cutter head to move so as to coat the screen.
The invention has the beneficial effects that:
the invention discloses a method for manufacturing a solar screen by laser direct writing imaging, which comprises a plurality of flow processes of manufacturing a water film adhesive film, coating the screen, exposing the screen and soaking and washing, and introduces a laser direct writing imaging technology to replace the original film exposure method to expose, soak and wash a photosensitive emulsion to form a hollow pattern.
Drawings
FIG. 1 is a schematic view of a hydrofilm-making apparatus.
Fig. 2 is a schematic view of an automatic coater.
Detailed Description
In order to make the technical solution of the present invention clearer and clearer, the present invention is further described below with reference to embodiments, and any solution obtained by substituting technical features of the technical solution of the present invention with equivalents and performing conventional reasoning falls within the scope of the present invention.
Example one
The method for manufacturing the solar screen printing plate by laser direct writing imaging is characterized by comprising the following steps:
(1) uniformly coating the photosensitive emulsion on a polyethylene film, drying, and preparing a photosensitive emulsion film with uniform thickness and good cleanliness, namely a water film adhesive film;
(2) coating the water film adhesive film obtained in the step (1) on a screen printing plate by using an automatic coating machine, and drying;
(3) placing the screen printing plate coated in the step (2) on LDI equipment;
(4) inputting a pre-designed plate making drawing into LDI equipment;
(5) the LDI equipment emits laser according to the input plate making drawing to carry out high-precision scanning on the screen plate, so that the laser scanning part area on the screen plate is exposed, and the emulsion is crosslinked and cured; the non-scanned part of the laser is not exposed;
(6) after the screen printing plate is exposed, soaking the screen printing plate in developing solution or clear water, and washing the screen printing plate by using a water gun or an automatic developing machine to enable the photosensitive emulsion in the unexposed area to fall off to form a hollow pattern, and after the washing is finished, obtaining the solar screen printing plate;
wherein the drying temperature in the step (1) is controlled to be 40-85 ℃;
wherein the drying temperature in the step (2) is controlled to be 40-80 ℃, and the drying time is controlled to be 20-60 min;
the embodiment discloses a method for manufacturing a solar screen plate by laser direct-writing imaging, which introduces a laser direct-writing imaging technology to replace an original film exposure method, exposes, soaks and washes a photosensitive emulsion to form a hollowed-out pattern, and has the characteristics of simple manufacturing process, high efficiency and good exposure effect, and the yield of the obtained solar screen plate is greatly improved.
Example two
The method for manufacturing the solar screen by laser direct writing imaging is characterized in that the step (1) is performed by a water film manufacturing device 1, the water film manufacturing device 1 comprises an unwinding roller 2, a winding roller 3, a guide screw 4 and a static eliminator 5, the unwinding roller 2 and the winding roller 3 are respectively arranged on two sides of the water film manufacturing device 1, and the guide screw 4 and the static eliminator 5 are sequentially arranged on one side of the winding roller 3;
the polyethylene film is unreeled and reeled through the unreeling roller and the reeling roller, and static electricity is eliminated simultaneously in the unreeling and reeling processes, so that dust particles are prevented from being adsorbed on the polyethylene film; and (3) flatly paving the photosensitive emulsion on a polyethylene film in a large area, and drying the photosensitive emulsion after passing through a guide screw rod in the rolling and unreeling process, so that the coating thickness of the emulsion is uniform.
Wherein, when rolling, the surface of the water film adhesive film faces outwards;
the embodiment discloses a manufacturing method and manufacturing equipment of a water film adhesive film, the manufacturing of the water film adhesive film can be effectively and quickly completed through the water film manufacturing equipment, and the manufacturing process is simple and quick.
EXAMPLE III
The method for manufacturing the solar screen printing plate by laser direct writing imaging in the embodiment includes that the automatic coating machine 6 in the step (2) includes a coating station 7, a coating tool bit 8 and a tool bit stroke rod 9, where the tool bit stroke rod 9 is disposed above the coating station 7 and connected with the coating tool bit 8 to control the coating tool bit 8 to move horizontally;
firstly, fixing a screen printing plate at a coating station, attaching the water film adhesive film prepared in the step (1), and then starting a tool bit stroke rod to drive a coating tool bit to move so as to coat the screen printing plate;
the embodiment discloses a screen coating method and coating equipment, wherein a screen is preferably fixed on a coating station, a water film adhesive film is coated on the screen through a coating cutter head which reciprocates, the coating process is simple, the cleaning is easy, the operation is easy, the precision is high, and the screen coating efficiency is greatly improved.
In conclusion, the invention has reasonable design, introduces the laser direct writing imaging technology, replaces the original film exposure method, exposes, soaks and washes the photosensitive emulsion to form the hollowed-out pattern, has the characteristics of simple manufacturing process, high efficiency and good exposure effect, greatly improves the yield of the obtained solar screen, improves the manufacturing of the water film and the coating of the screen, greatly reduces the operation difficulty of the coating of the water film and the screen, improves the flow efficiency of the coating of the water film and the screen, and improves the productivity of the solar screen.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method for manufacturing a solar screen printing plate by laser direct writing imaging is characterized by comprising the following steps:
(1) uniformly coating the photosensitive emulsion on a polyethylene film, drying, and preparing a photosensitive emulsion film with uniform thickness and good cleanliness, namely a water film adhesive film;
(2) coating the water film adhesive film obtained in the step (1) on a screen printing plate by using an automatic coating machine, and drying;
(3) placing the screen printing plate coated in the step (2) on LDI equipment;
(4) inputting a pre-designed plate making drawing into LDI equipment;
(5) the LDI equipment emits laser according to the input plate making drawing to carry out high-precision scanning on the screen plate, so that the laser scanning part area on the screen plate is exposed, and the emulsion is crosslinked and cured; the non-scanned part of the laser is not exposed;
(6) and after the screen printing plate is exposed, soaking the screen printing plate in developing solution or clear water, and washing the screen printing plate by using a water gun or an automatic developing machine to enable the photosensitive emulsion in the unexposed area to fall off to form a hollow pattern, and after the screen printing plate is washed, obtaining the solar screen printing plate.
2. The method for manufacturing the solar screen printing plate by the laser direct writing imaging as claimed in claim 1, wherein the drying temperature in the step (1) is controlled to be 40 ℃ to 85 ℃.
3. The method for manufacturing the solar screen printing plate by laser direct writing imaging according to claim 2, wherein the drying temperature in the step (2) is controlled to be 40-80 ℃, and the drying time is controlled to be 20-60 min.
4. The method for manufacturing the solar screen by laser direct writing imaging according to claim 3, wherein the step (1) is performed by a hydrophin manufacturing device, the hydrophin manufacturing device comprises an unwinding roller, a winding roller, a guide screw and a static eliminator, the unwinding roller and the winding roller are respectively arranged at two sides of the hydrophin manufacturing device, and the guide screw and the static eliminator are sequentially arranged at one side of the winding roller.
5. The method for manufacturing the solar screen printing plate by laser direct writing imaging according to claim 4, wherein the polyethylene film is unreeled and reeled by the unreeling roller and the reeling roller, and static elimination is simultaneously carried out during unreeling and reeling so as to avoid dust particles being adsorbed on the polyethylene film; and (3) flatly paving the photosensitive emulsion on a polyethylene film in a large area, and drying the photosensitive emulsion after passing through a guide screw rod in the rolling and unreeling process, so that the coating thickness of the emulsion is uniform.
6. The method for manufacturing the solar screen printing plate by laser direct writing imaging according to claim 5, wherein the chemical surface of the water film adhesive film faces outwards during rolling.
7. The method for manufacturing the solar screen printing plate by laser direct writing imaging according to claim 3 or 5, wherein the automatic coating machine in the step (2) comprises a coating station, a coating tool bit and a tool bit stroke rod, wherein the tool bit stroke rod is arranged above the coating station and connected with the coating tool bit to control the coating tool bit to move horizontally.
8. The method for manufacturing the solar screen printing plate by laser direct writing imaging according to claim 7, wherein in the step (2), the screen printing plate is firstly fixed at the coating station, the water film prepared in the step (1) is attached, and then, the tool bit stroke rod is started to drive the coating tool bit to move so as to coat the screen printing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266903.6A CN112428661A (en) | 2020-11-13 | 2020-11-13 | Method for manufacturing solar screen printing plate through laser direct writing imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266903.6A CN112428661A (en) | 2020-11-13 | 2020-11-13 | Method for manufacturing solar screen printing plate through laser direct writing imaging |
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| Publication Number | Publication Date |
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| CN112428661A true CN112428661A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011266903.6A Pending CN112428661A (en) | 2020-11-13 | 2020-11-13 | Method for manufacturing solar screen printing plate through laser direct writing imaging |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2277699A2 (en) * | 2009-07-13 | 2011-01-26 | Kesper Druckwalzen GmbH | Stencils and method for producing stencils |
| CN107825823A (en) * | 2017-11-13 | 2018-03-23 | 胜华电子（惠阳）有限公司 | Super thick carbon oil printing specific complex half tone and preparation method thereof |
| CN108089411A (en) * | 2018-01-26 | 2018-05-29 | 江西鼎峰电子科技股份有限公司 | Automatic adjustment detection plus the anti-closure plate developing machine of alarm |
| CN108688299A (en) * | 2018-04-26 | 2018-10-23 | 东莞福哥电子有限公司 | A kind of multiple film layer silk-screen halftone and preparation method thereof |
| CN109119590A (en) * | 2018-08-31 | 2019-01-01 | 长江师范学院 | The coating method of use for laboratory lithium battery material |
| CN111766763A (en) * | 2020-06-19 | 2020-10-13 | 沃苏特电子科技（苏州）有限公司 | Film preparation process |
-
2020
- 2020-11-13 CN CN202011266903.6A patent/CN112428661A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2277699A2 (en) * | 2009-07-13 | 2011-01-26 | Kesper Druckwalzen GmbH | Stencils and method for producing stencils |
| CN107825823A (en) * | 2017-11-13 | 2018-03-23 | 胜华电子（惠阳）有限公司 | Super thick carbon oil printing specific complex half tone and preparation method thereof |
| CN108089411A (en) * | 2018-01-26 | 2018-05-29 | 江西鼎峰电子科技股份有限公司 | Automatic adjustment detection plus the anti-closure plate developing machine of alarm |
| CN108688299A (en) * | 2018-04-26 | 2018-10-23 | 东莞福哥电子有限公司 | A kind of multiple film layer silk-screen halftone and preparation method thereof |
| CN109119590A (en) * | 2018-08-31 | 2019-01-01 | 长江师范学院 | The coating method of use for laboratory lithium battery material |
| CN111766763A (en) * | 2020-06-19 | 2020-10-13 | 沃苏特电子科技（苏州）有限公司 | Film preparation process |
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Application publication date: 20210302 |