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Screen plate making method

A screen and patch technology, which is applied in the field of automotive glass ink and silver paste printing, can solve the problems of difficult screen stretching technology and high screen cost

Active Publication Date: 2006-11-29
上海耀皮康桥汽车玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the cost of wire mesh is high, and the stretching technology is difficult

Method used

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  • Screen plate making method

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Embodiment

[0020] Take Nanya Palio backshield glass hot-line printing as an example. The power connector of ordinary glass is located in the middle of the glass, while the Nanya Palio rear glass connector is at the end of the busbar, so the current is relatively concentrated. When the power requirement of 190w is to be reached, the temperature on the busbar will exceed the temperature of the middle defrosting line, reaching 100 Excessive. If the temperature here is to be lowered, the thickness of the silver paste on the bus is usually increased to reduce the local resistance. Since the screen printing technology cannot achieve different thicknesses in different areas during one printing, although reducing the screen mesh number can increase the thickness of the busbar, it will also increase the thickness of the defrosting line and affect the defrosting effect.

[0021] After adopting the screen patching method of the present invention, the local printing thickness is increased, and othe...

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Abstract

A method for preparing paster of screen includes applying 150-300mu screen as master screen and 80-300mu screen as paster, stretching them to be a specified tension, using neutral solvent to carry out degreasing process on them, coating photo resists on them, drying two said screens, sticking paster on master screen then drying them, sticking film on and exposing screen, developing screen and developing paster region.

Description

technical field [0001] The invention relates to ink and silver paste printing for automobile glass, in particular to a method for partially pasting another screen on a single-size screen to control the printing thickness of different regions. Background technique [0002] Usually the printing thickness obtained by a single screen in screen printing is the same, but sometimes local thickness needs to be different to meet the requirements of the product, such as silver paste printing on the rear windshield of a car. The conductive silver paste is printed on the rear windshield by screen printing technology, and after sintering, it is energized to use the conductivity of silver to form a circuit to generate heat, which can remove the water mist on the glass. It is generally required that the heat be evenly distributed within the visible range of the glass. Due to the concentration of current near the electrode sheet of the bus bar (connecting the electrode sheet and the line c...

Claims

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Application Information

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IPC IPC(8): G03F7/00B41C1/14
Inventor 李永明
Owner 上海耀皮康桥汽车玻璃有限公司