A kind of cleaning method of sapphire touch panel

A touch panel, sapphire technology, applied in the direction of using liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of secondary pollution, low efficiency, large environmental impact of cleaning waste liquid, etc. The effect of increasing and improving the cleaning efficiency

Active Publication Date: 2015-09-30
ZHEJIANG SHANGCHENG SCI&TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above method involves more cleaning agent components, which is easy to cause secondary pollution. It can only be dried one piece at a time, which is low in efficiency. At the same time, the cleaning waste liquid has a greater impact on the environment. Sapphire touch panel cleaning method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Use 11-tank ultrasonic cleaning equipment, use 41 pieces of tablets in the cleaning basket, use potassium hydroxide cleaning agent with a concentration of 20% in the first tank, use sodium sulfate cleaning agent at a concentration of 0.02% in the second tank, and use 3, 4, 5, 6, The 7th tank uses pure water, the 8th, 9th, and 10th tanks use pure IPA, the 11th tank uses kerosene, the ultrasonic power is set to 2.0W, and the processing parameters are:

[0021] The first tank: the temperature is 75 degrees, and the cleaning time is 180 seconds;

[0022] Tank 2: temperature 75 degrees, cleaning time 120 seconds;

[0023] Tank 3: temperature 75 degrees, cleaning time 180 seconds;

[0024] Tank 4: Room temperature, spraying time 30 seconds;

[0025] Tank 5~10: room temperature, cleaning time 60 seconds;

[0026] Tank 11: Temperature 110 degrees, drying time 30 seconds.

[0027] The sapphire touch panel is processed according to the process of this embodiment, and the qual...

Embodiment 2

[0030] The difference from Example 1 is that the first tank of this program is a potassium hydroxide solution with a mass fraction of 20%, and the second tank is a sodium sulfate solution with a mass fraction of 0.02%.

Embodiment 3

[0032] Different from Example 1, the first tank of this program is a potassium hydroxide solution with a mass fraction of 20%, and the second tank is a sodium bicarbonate solution with a mass fraction of 0.01%.

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PUM

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Abstract

The invention provides an optical-grade sapphire touch panel cleaning method. According to the method, saponification and emulsion can be produced to stains and grease on product surfaces through alkaline cleaners so as to clean products, and the workpiece surface cleanliness is controlled. By cleaning through the alkaline liquid, damage to equipment can be minimized, and the product surface quality request can be met. A plurality of sapphire sheets can be dried simultaneously, and the number of the sapphire sheets dried simultaneously can reach 40 sheets to 100 sheets, and the cleaning efficiency is greatly improved.

Description

technical field [0001] The invention relates to a cleaning method for a sapphire touch panel. technical background [0002] Corundum is a crystalline form of aluminum oxide. Sapphire is a general term for corundum gemstones of other colors except red ruby. Sapphire has high hardness, high melting point, good light transmission, stable chemical properties, and its hardness reaches Mohs 9, so it is widely used in high-tech fields such as machinery, optics, and information. [0003] With the continuous improvement of the performance of optoelectronic devices, the requirements for processing accuracy and surface quality of single crystal sapphire substrates are getting higher and higher. It is necessary to chemically clean the sapphire surface, which is a necessary process to control the surface quality during processing. [0004] Chinese patent document 103111434A discloses a sapphire processing final cleaning process, comprising the following steps: a: cleaning with isopropa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B3/04B08B3/08B08B3/12
CPCB08B3/08B08B3/12
Inventor 吴云才
Owner ZHEJIANG SHANGCHENG SCI&TECH
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