阅读说明：本技术 一种液晶屏生产用屏幕表面清洗工艺 (Screen surface cleaning process for liquid crystal screen production ) 是由 毛林才 申明哲 梁佳林 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种液晶屏生产用屏幕表面清洗工艺,包括以下步骤：S1、清洗剂配制；S2、屏幕玻璃预处理；S3、清洗处理；S4、清洗剂残留清理；S5、干燥处理；本工艺通过将改性椰子酰二乙醇胺、乙二胺四乙酸、脂肪酸钾、二甲苯磺酸钠、碳酸钠、N-直链烷基磺酸钠盐、壬基酚乙氧基化物、脂肪醇聚氧乙烯醚、六偏磷酸钠、十二烷基苯磺酸钠、聚氧乙烯烷醇酰胺、改性蒙脱土粉和水混合搅拌后制得的清洗剂对屏幕玻璃进行清洁,能够有效提高屏幕玻璃表面的清洁效果,通过振动电机对清洗剂进行振动,并同时通过超声波进行漂洗,能够有效快速的对玻璃表面的灰尘进行振落清洁,提高玻璃的清洁效率,能够有效的提高液晶屏幕的生产良率。(The invention relates to a screen surface cleaning process for liquid crystal display production, which comprises the following steps: s1, preparing a cleaning agent; s2, preprocessing screen glass; s3, cleaning; s4, cleaning the residues of the cleaning agent; s5, drying; according to the process, the screen glass is cleaned by the cleaning agent prepared by mixing and stirring the modified coconut diethanol amide, the ethylene diamine tetraacetic acid, the potassium fatty acid, the sodium xylene sulfonate, the sodium carbonate, the sodium N-linear alkyl sulfonate, the nonylphenol ethoxylate, the fatty alcohol polyoxyethylene ether, the sodium hexametaphosphate, the sodium dodecyl benzene sulfonate, the polyoxyethylene alkanolamide, the modified montmorillonite powder and water, so that the cleaning effect of the surface of the screen glass can be effectively improved, the cleaning agent is vibrated by the vibrating motor and rinsed by ultrasonic waves, dust on the surface of the glass can be effectively and quickly cleaned by vibration, the cleaning efficiency of the glass is improved, and the production yield of the liquid crystal screen can be effectively improved.)

1. A screen surface cleaning process for liquid crystal display production is characterized in that: the method comprises the following steps:

s1, preparation of a cleaning agent: mixing and stirring modified coconut diethanol amide, ethylene diamine tetraacetic acid, potassium fatty acid, sodium xylene sulfonate, sodium carbonate, N-linear alkyl sulfonic acid sodium salt, nonylphenol ethoxylate, fatty alcohol-polyoxyethylene ether, sodium hexametaphosphate, sodium dodecyl benzene sulfonate, polyoxyethylene alkanolamide, modified montmorillonite powder and water to prepare a cleaning agent for later use;

s2, screen glass pretreatment: pre-cleaning the screen glass;

s3, cleaning: injecting a cleaning agent into a water tank with the capacity of 1000-2500L made of stainless steel, wherein the injection amount of the cleaning agent is 70% of the volume of the water tank, vibrating the cleaning agent in the water tank by using a vibration motor, the vibration frequency is 200-500 Hz, heating the cleaning agent in the water tank to 25-35 ℃, arranging screen glass on a clamp at an interval of 1.5-2 mm, stably placing the clamp with the screen glass in the water tank by using a manipulator at a speed of 1-2 m/min, keeping the cleaning agent completely immersed in the screen glass, and rinsing by using ultrasonic waves, wherein the ultrasonic power is 3.9-4.1 KHz, and the cleaning time is 30-40 minutes;

s4, cleaning of cleaning agent residues: cleaning the cleaning agent residue on the surface of the screen glass;

s5, drying: and (4) carrying out air drying treatment on the surface moisture of the screen glass, then taking out the screen glass, packaging and storing to finish the cleaning operation.

2. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 1, characterized in that: the preparation method of the cleaning agent in S1 comprises the following steps: weighing the following substances in parts by weight for later use: 2-6 parts of modified cocoyl diethanol amine, 1-3 parts of ethylene diamine tetraacetic acid, 5-8 parts of potassium fatty acid, 1-4 parts of sodium xylene sulfonate, 2-5 parts of sodium carbonate, 5-10 parts of N-linear alkyl sulfonic acid sodium salt, 7-11 parts of nonylphenol ethoxylate, 6-9 parts of fatty alcohol-polyoxyethylene ether, 5-8 parts of sodium hexametaphosphate, 8-10 parts of sodium dodecyl benzene sulfonate, 7-12 parts of polyoxyethylene alkanolamide, 1-2 parts of modified montmorillonite powder and 195-207 parts of water; and then putting the weighed substances in parts by weight into a stirrer, stirring at the rotating speed of 2100-2400 rpm for 30-50 minutes, taking out the mixture to obtain a cleaning agent for later use, and storing the cleaning agent in a dark place at the ambient temperature of 20-30 ℃.

3. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 1, characterized in that: in S2, the method of performing the pre-cleaning process on the screen glass includes: vertically arranging the screen glass on a clamp, keeping the distance between the adjacent screen glass to be 1.5-2 mm, washing the surface of the screen glass vertically downwards from the top of the screen glass by using distilled water at the temperature of 22-35 ℃, wherein the flow rate of the washing water is 2-5 cubic meters per second, the washing time is 10-20 seconds, and after washing, taking out the screen glass through a manipulator and placing the screen glass in a dust-free room for storage.

4. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 3, characterized in that: the temperature in the dust-free room is 20-30 ℃ and the humidity is 70-80%.

5. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 1, characterized in that: in S4, the method of cleaning the cleaning agent residue on the screen glass surface includes: taking out the cleaned screen glass from the water tank by using a manipulator, putting the cleaned screen glass into a water tank with distilled water at the temperature of 22-30 ℃ within 3 minutes, vibrating the water in the water tank by using a vibrating motor, lifting the screen glass to a position 15-20 mm above the water surface of the water tank after treating for 10-15 minutes, spraying for 7-11 minutes by using the distilled water, and transferring the screen glass into an air drying box.

6. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 5, characterized in that: the vibration frequency of the vibration motor is 300-600 Hz.

7. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 5, characterized in that: in S5, the method of air-drying the moisture on the surface of the screen glass includes: the method comprises the steps of filtering impurities in air with the temperature of 35-45 ℃ and the humidity of 2-7 ℃ by using a 600-800 mesh filter screen, air-drying screen glass in an air drying box, and then adopting 70-80 mu W/cm²The screen glass is irradiated by the ultraviolet rays for 30-60 seconds.

8. The screen surface cleaning process for producing a liquid crystal display as claimed in claim 7, characterized in that: the air speed of the air drying is 5-12 m/s.

Technical Field

The invention relates to the technical field of liquid crystal screen cleaning, in particular to a screen surface cleaning process for liquid crystal screen production.

Background

The liquid crystal screen uses liquid crystal material as basic component, and the liquid crystal material is filled between two parallel plates, and the arrangement state of internal partial molecules of liquid crystal material can be changed by means of voltage so as to attain the goal of shading light and transmitting light, and can display colour image. The lcd panel has low power consumption, and is therefore popular with engineers and suitable for electronic devices using batteries.

In the production process of the liquid crystal screen, dust and impurities are easily adhered to the surface of the glass, and if screen glass on the surface of the liquid crystal screen is not cleaned, the quality of a finished product of the liquid crystal screen is easily influenced, and the normal use of the liquid crystal screen is hindered.

Disclosure of Invention

Technical problem to be solved

In order to solve the above problems of the prior art, the present invention provides: a screen surface cleaning process for liquid crystal display production.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that: a screen surface cleaning process for liquid crystal display production comprises the following steps:

s1, preparation of a cleaning agent: mixing and stirring modified coconut diethanol amide, ethylene diamine tetraacetic acid, potassium fatty acid, sodium xylene sulfonate, sodium carbonate, N-linear alkyl sulfonic acid sodium salt, nonylphenol ethoxylate, fatty alcohol-polyoxyethylene ether, sodium hexametaphosphate, sodium dodecyl benzene sulfonate, polyoxyethylene alkanolamide, modified montmorillonite powder and water to prepare a cleaning agent for later use;

s2, screen glass pretreatment: pre-cleaning the screen glass;

s3, cleaning: injecting a cleaning agent into a water tank with the capacity of 1000-2500L made of stainless steel, wherein the injection amount of the cleaning agent is 70% of the volume of the water tank, vibrating the cleaning agent in the water tank by using a vibration motor, the vibration frequency is 200-500 Hz, heating the cleaning agent in the water tank to 25-35 ℃, arranging screen glass on a clamp at an interval of 1.5-2 mm, stably placing the clamp with the screen glass in the water tank by using a manipulator at a speed of 1-2 m/min, keeping the cleaning agent completely immersed in the screen glass, and rinsing by using ultrasonic waves, wherein the ultrasonic power is 3.9-4.1 KHz, and the cleaning time is 30-40 minutes;

s4, cleaning of cleaning agent residues: cleaning the cleaning agent residue on the surface of the screen glass;

s5, drying: and (4) carrying out air drying treatment on the surface moisture of the screen glass, then taking out the screen glass, packaging and storing to finish the cleaning operation.

Preferably, the preparation method of the cleaning agent in S1 comprises the following steps: weighing the following substances in parts by weight for later use: 2-6 parts of modified cocoyl diethanol amine, 1-3 parts of ethylene diamine tetraacetic acid, 5-8 parts of potassium fatty acid, 1-4 parts of sodium xylene sulfonate, 2-5 parts of sodium carbonate, 5-10 parts of N-linear alkyl sulfonic acid sodium salt, 7-11 parts of nonylphenol ethoxylate, 6-9 parts of fatty alcohol-polyoxyethylene ether, 5-8 parts of sodium hexametaphosphate, 8-10 parts of sodium dodecyl benzene sulfonate, 7-12 parts of polyoxyethylene alkanolamide, 1-2 parts of modified montmorillonite powder and 195-207 parts of water; and then putting the weighed substances in parts by weight into a stirrer, stirring at the rotating speed of 2100-2400 rpm for 30-50 minutes, taking out the mixture to obtain a cleaning agent for later use, and storing the cleaning agent in a dark place at the ambient temperature of 20-30 ℃.

Preferably, in S2, the method for pre-cleaning the screen glass includes: vertically arranging the screen glass on a clamp, keeping the distance between the adjacent screen glass to be 1.5-2 mm, washing the surface of the screen glass vertically downwards from the top of the screen glass by using distilled water at the temperature of 22-35 ℃, wherein the flow rate of the washing water is 2-5 cubic meters per second, the washing time is 10-20 seconds, and after washing, taking out the screen glass through a manipulator and placing the screen glass in a dust-free room for storage.

Preferably, the temperature in the dust-free room is 20-30 ℃ and the humidity is 70-80%.

Preferably, in S4, the method for cleaning the cleaning agent residue on the surface of the screen glass includes: taking out the cleaned screen glass from the water tank by using a manipulator, putting the cleaned screen glass into a water tank with distilled water at the temperature of 22-30 ℃ within 3 minutes, vibrating the water in the water tank by using a vibrating motor, lifting the screen glass to a position 15-20 mm above the water surface of the water tank after treating for 10-15 minutes, spraying for 7-11 minutes by using the distilled water, and transferring the screen glass into an air drying box.

Preferably, the vibration frequency of the vibration motor is 300-600 Hz.

Preferably, in S5, the method of air-drying the moisture on the surface of the screen glass includes: the method comprises the steps of filtering impurities in air with the temperature of 35-45 ℃ and the humidity of 2-7 ℃ by using a 600-800 mesh filter screen, air-drying screen glass in an air drying box, and then adopting 70-80 mu W/cm²The screen glass is irradiated by the ultraviolet rays for 30-60 seconds.

Preferably, the air speed of the air drying is 5-12 m/s.

(III) advantageous effects

The invention has the beneficial effects that: according to the process, the screen glass is cleaned by the cleaning agent prepared by mixing and stirring the modified coconut diethanol amide, the ethylene diamine tetraacetic acid, the potassium fatty acid, the sodium xylene sulfonate, the sodium carbonate, the sodium N-linear alkyl sulfonate, the nonylphenol ethoxylate, the fatty alcohol polyoxyethylene ether, the sodium hexametaphosphate, the sodium dodecyl benzene sulfonate, the polyoxyethylene alkanolamide, the modified montmorillonite powder and water, so that the cleaning effect of the surface of the screen glass can be effectively improved, the cleaning agent is vibrated by the vibrating motor and rinsed by ultrasonic waves, dust on the surface of the glass can be effectively and quickly cleaned by shaking off, the cleaning efficiency of the glass is improved, the influence of impurities on a liquid crystal screen is reduced, and the production yield of the liquid crystal screen can be effectively improved.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.