CN114701241A - Preparation method of screen printing plate without net knots - Google Patents
Preparation method of screen printing plate without net knots Download PDFInfo
- Publication number
- CN114701241A CN114701241A CN202210228105.7A CN202210228105A CN114701241A CN 114701241 A CN114701241 A CN 114701241A CN 202210228105 A CN202210228105 A CN 202210228105A CN 114701241 A CN114701241 A CN 114701241A
- Authority
- CN
- China
- Prior art keywords
- gauze
- strip
- net
- yarn
- printing plate
- 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention discloses a method for preparing a net-knot-free screen printing plate, which comprises the following steps of removing a first gauze of a net cloth in a strip-shaped opening of the screen printing plate; the strip-shaped openings are used for printing finger-shaped electrodes; the first gauze is parallel to the extending direction of the strip-shaped opening; removing the second gauze of the mesh cloth in the strip-shaped openings at intervals; the second gauze is vertical to the extending direction of the strip-shaped opening; the second gauze removed from the strip-shaped opening is used as a removed gauze, and the second gauze not removed from the strip-shaped opening is used as a remained gauze; thinning the diameter of the remained yarn; residues are left at two ends of the removed yarn in the strip-shaped openings, and the residues at the two ends of the removed yarn are thinned. The screen printing plate without the net knots is more beneficial to the falling of metal slurry during printing, can ensure that the thickness of the printed finger-shaped electrode is more uniform, and can reduce the occurrence of printing broken lines.
Description
Technical Field
The invention relates to a preparation method of a non-net-knot screen printing plate.
Background
In solar cell wafer processing, finger electrodes (fingers) are typically prepared by screen printing. The existing screen printing plate for printing the finger-shaped electrodes generally adopts steel wire mesh cloth, the mesh cloth is screened and compounded with a high polymer plate film, then strip-shaped openings for printing the finger-shaped electrodes are manufactured on the plate film, and the strip-shaped openings are blanking areas. When printing the finger-shaped electrode, the screen printing plate is arranged on the surface of the silicon wafer, and the metal slurry is scraped into the blanking area. However, there are network knots in the strip openings of the stencil, which may affect the falling of the metal paste, resulting in uneven thickness of the printed finger electrodes (metal paste), and even printing disconnection. This requires the removal of the network in the openings of the strip of the stencil.
Disclosure of Invention
The invention aims to provide a method for preparing a non-net-knot screen printing plate, which is characterized in that first gauze of screen cloth in strip-shaped openings of the screen printing plate is removed, the strip-shaped openings are used for printing finger-shaped electrodes, and the first gauze is parallel to the extending direction of the strip-shaped openings.
Preferably, the second gauze of the mesh cloth in the strip-shaped openings is removed at intervals, and the second gauze is perpendicular to the extending direction of the strip-shaped openings.
Preferably, the second gauze removed from the strip-shaped openings is used as a removed gauze, and the second gauze not removed from the strip-shaped openings is used as a remained gauze; and thinning the diameter of the remained yarn.
Preferably, both ends of the removed yarn have residues in the strip-shaped openings, and the residues at both ends of the removed yarn are refined.
Preferably, the first screen of the screen cloth in the strip-shaped openings is removed by means of a laser.
Preferably, the second screen of the screen cloth in the strip-shaped openings is removed at intervals by means of a laser.
Preferably, the remaining yarn diameter is reduced and the residue at both ends of the removed yarn is reduced by chemical treatment.
Preferably, the chemical treatment is electrolysis, and the mesh is placed on the anode to separate cations from the residues and the remained yarns at the two ends of the removed yarns, so that the effects of refining the residues and the remained yarns at the two ends of the removed yarns are achieved.
Preferably, the chemical treatment is etching, and the mesh is placed in a chemical liquid, so that the residual and the remained yarn at the two ends of the removed yarn are subjected to oxidation-reduction reaction, and the effect of refining the residual and the remained yarn at the two ends of the removed yarn is achieved.
The invention has the advantages and beneficial effects that:
1) the invention removes the first gauze of the screen cloth in the strip-shaped opening of the printing plate film, namely realizes the removal of the net knots in the strip-shaped opening of the printing plate film, thus being beneficial to the falling of the metal slurry during printing, enabling the thickness of the printed finger-shaped electrode (metal slurry) to be more uniform and reducing the occurrence of printing broken lines.
2) The second gauze of the screen cloth in the strip-shaped opening is removed at intervals, so that the barrier of the second gauze to the falling of the metal paste during printing can be reduced (after the second gauze of the screen cloth in the strip-shaped opening is removed at intervals, the distance between two adjacent second gauzes in the strip-shaped opening is increased and is one time of the original distance), the falling of the metal paste during printing is further facilitated, the thickness of the printed finger-shaped electrode (metal paste) is more uniform, and the occurrence of printing broken lines can be further reduced.
3) The invention also thins the thread diameter of the remaining yarn, which is more beneficial to the falling of the metal paste during printing, and can further make the thickness of the printed finger-shaped electrode (metal paste) more uniform, and further reduce the occurrence of printing broken line.
4) The invention also thins the residues at two ends of the removed yarn, thereby being more beneficial to the falling of the metal paste during printing, further enabling the thickness of the printed finger-shaped electrode (metal paste) to be more uniform, and further reducing the occurrence of printing broken lines.
Therefore, the screen printing plate without the mesh knots is more beneficial to the falling of the metal paste during printing, can enable the thickness of the printed finger-shaped electrodes (the metal paste) to be more uniform, and can reduce the occurrence of printing broken lines.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
a preparation method of a non-mesh-junction screen printing plate comprises the following steps:
spreading the steel wire mesh on a screen frame, and applying a certain tension to the screen cloth to complete the spreading action; the screen cloth comprises a plurality of first screen yarns which are parallel to each other and a plurality of second screen yarns which are parallel to each other; the first gauze is vertical to the second gauze;
then compounding a polymer plate film on the net cloth after net stretching; then, making strip-shaped openings for printing finger-shaped electrodes on the polymer plate film, wherein the extending direction of the strip-shaped openings is parallel to the first gauze;
then removing the first gauze of the mesh cloth in the strip-shaped opening by laser; removing the second gauze of the mesh cloth in the strip-shaped openings at intervals by using laser; the second gauze removed from the strip-shaped opening is used as a removed gauze, and the second gauze not removed from the strip-shaped opening is used as a left gauze; both ends of the removed yarn have residues in the strip-shaped openings;
then the diameter of the remained yarn is thinned and the residues at two ends of the removed yarn are thinned through chemical treatment.
Specifically, the method comprises the following steps:
the chemical treatment can be electrolysis, and the mesh cloth is placed on the anode to separate the residues and the remained yarns at the two ends of the removed yarns into cations, so that the effects of refining the residues and the remained yarns at the two ends of the removed yarns are achieved.
The chemical treatment can also be etching, and the mesh cloth is placed in a chemical liquid medicine to cause the residual and the remained yarn at the two ends of the removed yarn to have oxidation-reduction reaction, so as to achieve the effect of refining the residual and the remained yarn at the two ends of the removed yarn.
The second gauze is vertical to the extending direction of the strip-shaped opening; the method for removing the second gauze of the mesh cloth in the strip-shaped opening at intervals by using the laser comprises the following specific steps: sequentially counting second gauze of the net cloth in the strip-shaped openings along the extension direction of the strip-shaped openings, and dividing the second gauze of the net cloth in the strip-shaped openings into odd-number gauze and even-number gauze; the odd-numbered or even-numbered yarns are removed by a laser.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The preparation method of the non-net-knot screen printing plate is characterized in that a first net gauze of a net cloth in a strip-shaped opening of a screen printing plate is removed, the strip-shaped opening is used for printing a finger-shaped electrode, and the first net gauze is parallel to the extending direction of the strip-shaped opening.
2. The method for preparing a non-net-binding screen printing plate according to claim 1, wherein a second gauze of the net cloth in the strip-shaped openings is removed at intervals, and the second gauze is perpendicular to the extending direction of the strip-shaped openings.
3. The method for preparing a non-network binding screen printing plate according to claim 2, characterized in that the second gauze removed from the strip-shaped openings is used as a de-gauze, and the second gauze not removed from the strip-shaped openings is used as a remaining gauze; and thinning the diameter of the remained yarn.
4. The method for preparing a non-network binding screen printing plate according to claim 3, wherein the two ends of the removed yarn have residues in the strip-shaped openings, and the residues at the two ends of the removed yarn are refined.
5. The method for preparing a non-network binding screen printing plate as claimed in claim 4, wherein the first screen of the screen cloth in the strip-shaped openings is removed by laser.
6. The method of claim 5, wherein the second screen of the screen cloth is removed at intervals by a laser.
7. The method of manufacturing a non-network binding screen as claimed in claim 6, wherein the diameter of the remaining yarn is reduced and the residue on both ends of the removed yarn is reduced by chemical treatment.
8. The method for preparing a non-network binding screen printing plate according to claim 7, comprising the following steps:
the net cloth is stretched on a net frame, and certain tension is given to the net cloth to finish the action of stretching the net; the screen cloth comprises a plurality of first screen yarns which are parallel to each other and a plurality of second screen yarns which are parallel to each other; the first gauze is vertical to the second gauze;
then compounding a polymer plate film on the net cloth after net stretching; then making strip-shaped openings for printing finger electrodes on the polymer plate film, wherein the extending direction of the strip-shaped openings is parallel to the first gauze;
then removing the first gauze of the mesh cloth in the strip-shaped opening by laser; removing the second gauze of the mesh cloth in the strip-shaped openings at intervals by laser; the second gauze removed from the strip-shaped opening is used as a removed gauze, and the second gauze not removed from the strip-shaped opening is used as a remained gauze;
then the diameter of the remained yarn is thinned and the residues at two ends of the removed yarn are thinned through chemical treatment.
9. The method for preparing a non-network-binding screen printing plate according to claim 8, wherein the chemical treatment is electrolysis, and the screen cloth is placed on an anode to separate cations from the residues and the remained yarns at two ends of the removed yarns, so as to achieve the effect of refining the residues and the remained yarns at the two ends of the removed yarns.
10. The method for preparing a non-network binding screen printing plate according to claim 8, wherein the chemical treatment is etching, and the screen cloth is placed in a chemical solution to cause the residue and the remaining yarn at the two ends of the removed yarn to have an oxidation-reduction reaction, so as to achieve the effect of refining the residue and the remaining yarn at the two ends of the removed yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228105.7A CN114701241A (en) | 2022-03-10 | 2022-03-10 | Preparation method of screen printing plate without net knots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228105.7A CN114701241A (en) | 2022-03-10 | 2022-03-10 | Preparation method of screen printing plate without net knots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114701241A true CN114701241A (en) | 2022-07-05 |
Family
ID=82169316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210228105.7A Pending CN114701241A (en) | 2022-03-10 | 2022-03-10 | Preparation method of screen printing plate without net knots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114701241A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757069A (en) * | 2016-08-19 | 2018-03-06 | 仓和股份有限公司 | Manufacturing method of screen with composite net |
| CN108859398A (en) * | 2017-05-12 | 2018-11-23 | 仓和股份有限公司 | Composite halftone and preparation method thereof |
| CN110228273A (en) * | 2018-03-05 | 2019-09-13 | 仓和精密制造(苏州)有限公司 | Composite halftone and preparation method thereof |
| CN110588148A (en) * | 2018-06-12 | 2019-12-20 | 仓和股份有限公司 | Screen printing plate capable of locally controlling screen thickness and manufacturing method thereof |
| CN111703184A (en) * | 2020-06-19 | 2020-09-25 | 沃苏特电子科技（苏州）有限公司 | Manufacturing method of high-opening SE (selective emitter) screen printing plate without net knots |
| CN111907192A (en) * | 2020-09-04 | 2020-11-10 | 仓和精密制造(苏州)有限公司 | Surface treatment process of screen cloth |
| CN111993757A (en) * | 2020-09-04 | 2020-11-27 | 仓和精密制造(苏州)有限公司 | Preparation method of screen printing plate without net knots |
| CN212219601U (en) * | 2020-03-06 | 2020-12-25 | 苏州东方伽立精密科技有限公司 | High-precision printing screen |
| CN112721417A (en) * | 2020-12-03 | 2021-04-30 | 浙江硕克科技有限公司 | Printing stencil for solar cell and manufacturing process thereof |
| CN112725979A (en) * | 2021-01-19 | 2021-04-30 | 仓和精密制造(苏州)有限公司 | Screen cloth for screen printing plate and weaving method and using method thereof |
| CN112937076A (en) * | 2021-01-09 | 2021-06-11 | 浙江硕克科技有限公司 | Screen printing plate without net knots and manufacturing process thereof |
| CN215435523U (en) * | 2021-08-04 | 2022-01-07 | 仓和精密制造(苏州)有限公司 | Coated printing screen |
-
2022
- 2022-03-10 CN CN202210228105.7A patent/CN114701241A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757069A (en) * | 2016-08-19 | 2018-03-06 | 仓和股份有限公司 | Manufacturing method of screen with composite net |
| CN108859398A (en) * | 2017-05-12 | 2018-11-23 | 仓和股份有限公司 | Composite halftone and preparation method thereof |
| CN110228273A (en) * | 2018-03-05 | 2019-09-13 | 仓和精密制造(苏州)有限公司 | Composite halftone and preparation method thereof |
| CN110588148A (en) * | 2018-06-12 | 2019-12-20 | 仓和股份有限公司 | Screen printing plate capable of locally controlling screen thickness and manufacturing method thereof |
| CN212219601U (en) * | 2020-03-06 | 2020-12-25 | 苏州东方伽立精密科技有限公司 | High-precision printing screen |
| CN111703184A (en) * | 2020-06-19 | 2020-09-25 | 沃苏特电子科技（苏州）有限公司 | Manufacturing method of high-opening SE (selective emitter) screen printing plate without net knots |
| CN111907192A (en) * | 2020-09-04 | 2020-11-10 | 仓和精密制造(苏州)有限公司 | Surface treatment process of screen cloth |
| CN111993757A (en) * | 2020-09-04 | 2020-11-27 | 仓和精密制造(苏州)有限公司 | Preparation method of screen printing plate without net knots |
| CN112721417A (en) * | 2020-12-03 | 2021-04-30 | 浙江硕克科技有限公司 | Printing stencil for solar cell and manufacturing process thereof |
| CN112937076A (en) * | 2021-01-09 | 2021-06-11 | 浙江硕克科技有限公司 | Screen printing plate without net knots and manufacturing process thereof |
| CN112725979A (en) * | 2021-01-19 | 2021-04-30 | 仓和精密制造(苏州)有限公司 | Screen cloth for screen printing plate and weaving method and using method thereof |
| CN215435523U (en) * | 2021-08-04 | 2022-01-07 | 仓和精密制造(苏州)有限公司 | Coated printing screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102008056455B3 (en) | Oxidation and cleaning process for silicon wafers | |
| CN104441943A (en) | Solar cell screen printing plate and using method thereof | |
| EP0301471B1 (en) | Process to reutilize a silicon base material of a metal-insulator-semiconductor (mis) inversion layer solar cell | |
| EP2338179B1 (en) | Method for the treatment of substrates and treatment device for carrying out said method | |
| DE102007031958A1 (en) | Contact structure for a semiconductor device and method for producing the same | |
| EP3053186A1 (en) | Device and method for the continuous production of porous silicon layers | |
| CN114701241A (en) | Preparation method of screen printing plate without net knots | |
| CN114222663B (en) | Screen printing plate for use in screen printing method, screen printing apparatus, and screen printing method | |
| CN111993757A (en) | Preparation method of screen printing plate without net knots | |
| CN102883541B (en) | Plasma sandwiched film removing method | |
| DE3542111A1 (en) | METHOD FOR CARRYING OUT A GLOWING PROCESS | |
| DE102006016996A1 (en) | Production process for solar cells | |
| WO2019145485A1 (en) | Method and device for treating etched surfaces of a semiconductor substrate using a ozone-containing medium | |
| CN103233250A (en) | Method for electroplating goldfinger with thick gold layer | |
| WO2023156123A1 (en) | Producing textured surfaces, manufacturing tandem solar cells, and tandem solar cells | |
| DE4401782C2 (en) | Method for producing a locally flat emitter between the contact fingers of a solar cell | |
| JP2017503921A (en) | Maintenance method of used permanent cathode plate | |
| CN108312697B (en) | Screen without net knot | |
| DE60023781T2 (en) | Apparatus and method for manufacturing semiconductor devices | |
| WO2020206860A1 (en) | Copper ion treatment system and waste water treatment system thereof | |
| CN115472714B (en) | Bad solar cell reworking method | |
| DE112011106010T5 (en) | Process for manufacturing a solar cell | |
| DE19614524C2 (en) | Plasma etching device | |
| CN219815395U (en) | Purifying device and stripping production equipment for photoresist film stripping liquid | |
| CN116695128B (en) | Production method, alkaline washing method and device for deep-processing alloy wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |