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Preparation method of water-based cleaning solution for liquid crystal display screen

A technology for water-based cleaning liquid and liquid crystal display screen, which is applied in the preparation of detergent mixture compositions, chemical instruments and methods, detergent compounding agents, etc., and can solve cleaning liquid pollution, secondary pollution, liquid crystal display performance and problems such as lower yield, to achieve the effect of improving quality, eliminating residues, and improving finish

Inactive Publication Date: 2013-03-13
TIANJIN JINGLING MICROELECTRONIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because mechanical equipment and lubricants used in mechanical equipment contain harmful components such as organic matter, metal ions, and large particles, they enter the cleaning solution during the stirring process, and are prepared in a metal reactor, and the metal ions in the reactor are easy to dissolve. Into the cleaning solution, resulting in secondary pollution after cleaning, reducing the performance and yield of LCD screens
In addition, there are a lot of sodium ions in the environment and in the body of the operator, which can easily pollute the cleaning solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Add 10mL of FA / O type I active agent, 10mL of penetrant JFC, 5ml of metal ion chelating agent EDTA, and 30mL of deionized water into the closed reactor of polypropylene material, and vacuumize the closed reactor of polypropylene material to make the reaction The inside of the device is in a negative pressure and complete vortex state to realize vortex stirring.

[0022] (2) Take 10 mL of triethanolamine and dilute it with 35 mL of 18 MΩ ultrapure deionized water before use.

[0023] (3) The polypropylene material airtight reactor of step (1) is continuously maintained in a complete vortex state, and the diluted triethanolamine liquid in step (2) is sucked into the airtight polypropylene material under the effect of negative pressure while vortex stirring in the reactor. Afterwards, maintain a complete vortex state, and while vortex stirring, 2 mL of benzotriazole is pumped into a closed reactor made of polypropylene material under negative pressure, continue to mai...

Embodiment 2

[0025] (1) Add 2mL of FA / O II active agent, 20mL of penetrant JFC, 5ml of FA / O chelating agent, and 100mL of 18MΩ ultra-pure deionized water into a closed reactor made of polyethylene material. Vacuumize the reactor to make the inside of the reactor into a complete vortex state with negative pressure, and realize vortex stirring.

[0026] (2) Take 15mL of hydroxyethylethylenediamine and dilute it with 110mL of 18MΩ ultrapure deionized water before use.

[0027] (3) The polyethylene material airtight reactor of step (1) continues to maintain a complete vortex state, and the hydroxyethylethylenediamine liquid diluted in step (2) is pumped into the polyethylene under the effect of negative pressure while vortex stirring. In a closed reactor of ethylene material. Afterwards, maintain a complete vortex state, and while vortex stirring, pump 2 mL of hexamethylenetetramine into a closed reactor made of polyethylene material under negative pressure, continue to maintain a complete vo...

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PUM

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Abstract

The invention discloses a preparation method of a water-based cleaning solution for a liquid crystal display screen, aiming at providing the water-based cleaning solution for the liquid crystal display screen, which is prepared by using a nonmetal reactor and adopting a negative pressure stirring method, to prevent harmful substances, i.e. organic matters, metal ions, large particles, and the like, from entering the water-based cleaning solution, enhance the purity of the water-based cleaning solution and prevent secondary pollution. The preparation method comprises the following steps of: adding a penetrating agent, a non-ionic surface active agent, a metal ion chelating agent and ultrapure deionized water with the resistance of 18 megohms into a transparent closed reactor; vacuumizing the transparent closed reactor to enable the transparent closed reactor to be in a negative pressure complete vortex state so as to realize vortex stirring; carrying out the vortex stirring, and pumping diluted amine alkali into the transparent closed reactor under the action of negative pressure at the same time; carrying out the vortex stirring, and pumping a corrosion inhibitor into the transparent closed reactor under the action of the negative pressure at the same time; and continuing to uniformly carry out the vortex stirring to obtain the water-based cleaning solution for the liquid crystal display screen.

Description

technical field [0001] The invention relates to a preparation method of a liquid crystal display water-based cleaning solution. Background technique [0002] Liquid crystal is a kind of substance with special properties. It maintains the unique characteristics of crystals that can be arranged in three-dimensional space within a certain range in a liquid state. The liquid crystal material used on the liquid crystal display is an organic compound with structures such as cholesteryl ester, cyanobiphenyl, and phenylcyclohexane. After the liquid crystal material is encapsulated between two pieces of conductive glass, there will always be excess liquid crystal material remaining around it. If it is not removed, it will affect the performance of the liquid crystal display. In severe cases, it will even corrode the electrode leads and cause scrapping. With the rapid development of microelectronic technology, higher requirements are put forward for the surface cleanliness of liquid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/66C11D3/30C11D3/28C11D11/00
Inventor 刘玉岭高宝红檀柏梅黄妍妍
Owner TIANJIN JINGLING MICROELECTRONIC MATERIALS CO LTD