Inclined net knot-less screen printing plate and manufacturing method thereof

A production method and a technology without net knots, which are applied in screen printing machines, photographic plate-making processes on patterned surfaces, instruments, etc., can no longer meet the needs of SE screen production without net knots, increase raw material costs, and scrap nets. version and other issues, to achieve the effect of ensuring the etching yield, good protection of the screen frame, and reduced scrapping

Active Publication Date: 2021-03-12
SHANGHAI XIN ZHUO ZHUANG PRINTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that the edge of the etched area of ​​some steel wires is closer to the fine grid, the slight deformation of the steel wire during the backwashing process will cause the fine grid to collide with the steel wire, which can no longer meet the production requirements of the no-network SE screen, thereby reducing the yield. A large number of scrapped screens will be generated, which will increase the cost of raw materials

Method used

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  • Inclined net knot-less screen printing plate and manufacturing method thereof
  • Inclined net knot-less screen printing plate and manufacturing method thereof
  • Inclined net knot-less screen printing plate and manufacturing method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0035] An oblique net knotless screen plate in this embodiment is characterized in that the screen plate is composed of an outer frame and steel wires stretched inside the outer frame, the steel wires are distributed in warp and weft, and the wires in warp and weft are distributed The stretching angle of the steel wire is greater than 0° and less than 180°, preferably, greater than 0°, less than 90°, greater than 90°, and less than 180°;

[0036] In this embodiment, the screen structure is optimized, and the inclined screen stretching screen design is adopted, which can effectively ensure the equal spacing of the etching area, prevent quality problems such as line collision caused by the fine grid and the etching area being too close, and can effectively improve the product yield. Reduce the raw material cost and production cost of the product.

Embodiment 2

[0038] A kind of production method of inclined net without net knot of the present embodiment is characterized in that, comprises the following steps:

[0039] S1: stretching the net, adjusting the stretching angle of the steel wire in the screen plate so that the stretching angle is greater than 0° and less than 180°, preferably greater than 0°, less than 90°, greater than 90°, and less than 180°;

[0040] S2: Coating the screen, coating the screen with photosensitive glue, and coating the S and P sides of the screen on both sides;

[0041] S3: Exposure, choose a suitable size film, paste it on both sides of the screen, and expose the S and P sides of the screen on both sides, the pattern area on the film corresponds to the preset area of ​​the fine grid, and the preset area of ​​the fine grid Distributed at equal intervals according to the requirements of design drawings;

[0042] S4: Development, remove the film on the exposed screen, and develop it, melt and remove the un...

Embodiment 3

[0048] A method for making a slanted mesh without knots in this embodiment is characterized in that in step S5, the etching of the screen is carried out by etching equipment, and the etching equipment includes a filter 1 and a housing 12, and the outer wall of the filter 1 is a The upper and lower ends of the side are respectively equipped with a catheter assembly, one end of the catheter assembly is installed with a casing 12, the top side of the casing 12 is installed with a waste gas collection and discharge assembly, and the middle of the top of the casing 12 is installed with a jig to place the spraying assembly. , the middle of the inner wall of the shell 12 and the bottom of the spraying assembly are installed with a liquid guiding filter storage assembly, a heating temperature sensing assembly is installed in the liquid guiding filter storage assembly, a liquid drainage assembly is installed under one side of the liquid guiding filter storage assembly, and the guide The...

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Abstract

The invention discloses an inclined net knot-less screen printing plate and a manufacturing method thereof. The screen printing plate is composed of an outer frame and steel wires. The manufacturing method of the screen printing plate comprises the multiple steps of screen stretching, screen printing plate coating, exposing, developing, etching and stripping. The design is reasonable, the principle is simple, and the screen printing plate with the screen stretching angle larger than 0 degree and smaller than 180 degrees is selected for use. The screen printing plate is manufactured through thefilm etching process, the distances between etching areas on the manufactured screen printing plate are uniform, the size is convenient to control, a fine grid can be located in the middle of the etching areas in the subsequent screen printing plate manufacturing process, the quality problems such as line collision of the fine grid cannot occur, the alignment rate is high, the raw material scrapping situation is greatly reduced, and the product yield is greatly increased. Moreover, the technology is not complex, the manufacturing difficulty is low, the applicable screen printing plate specification is not limited, the etching equipment is matched to filter etching residues, the characteristics of simple etching operation and good screen frame protection are achieved, the etching yield isensured, and manual operation is simplified.

Description

technical field [0001] The invention relates to the technical field of knotless screen plates, in particular to a diagonal net knotless screen plate and a manufacturing method thereof. Background technique [0002] The knotless screen has good printing performance, good shape, and has a good aspect ratio, which is conducive to improving battery efficiency; SE technology metal grid lines and silicon wafers are heavily doped, and the positions between electrodes are lightly doped. Doping can reduce the recombination of the diffusion layer, reduce the contact resistance between the metal electrode and silicon, and improve the short-circuit current, open-circuit voltage and filling seal, thereby greatly improving the battery efficiency. With the continuous improvement of efficiency requirements, the combination of SE screen and knotless screen technology has become a new technology trend. [0003] In the prior art, the stretching angle of the knotless screen plate is 0°. 0-ang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F15/36G03F7/12
CPCB41F15/36G03F7/12Y02P70/50
Inventor 卢志强
Owner SHANGHAI XIN ZHUO ZHUANG PRINTING TECH
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