Cover plate ink remover and preparation and use method thereof

A technology of remover and cover plate, which is applied in the direction of remover and coating of chemical paint/ink, which can solve the problems of poor acid solubility, weak removal power, and unsustainable removal effect, and achieve strong industrial application prospects and processing Mild conditions and strong reactivity

Inactive Publication Date: 2020-05-19
KUNSHAN CITY BANMING ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two obvious disadvantages in this system: first, the solubility of ethers in strong alkaline solutions is not good, and it is difficult to maintain the stability of the ink remover itself during long-term use; second, alkaline solutions, especially inorganic alkalis, will corrode Cover glass; In addition, the types of inks removed by alkaline system removers are narrow, and external mechanical force is required to effectively remove them
However, the traditional organic acid system mostly uses a single acid system. Although the protonation ability is strong, its permeability is poor, the removal power is weak, and it often requires a higher operating temperature, and white spots often appear
The solid superacid system has strong permeability and excellent removal effect, but the cost of raw materials is high, the acid solubility is poor, and it is easy to adhere to the surface of the removed material, resulting in a short-lasting removal effect
[0010] Due to the above shortcomings of the existing cover ink remover, coupled with the development of new display technologies such as AMOLED, the replacement of display glass and ink materials, the traditional remover can no longer meet the actual needs, so the development of broad-spectrum, high-efficiency and mild condition ink Remover is imminent

Method used

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  • Cover plate ink remover and preparation and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] A kind of preparation method of cover plate ink remover, take the main agent of formulation amount, penetrating agent, mixed acid accelerator, oxidation accelerator and surfactant in stirring kettle, after stirring evenly, get cover plate ink remover, wherein Stirring time is 30-60 minutes.

[0034] A method for using a cover plate ink remover, the steps are as follows:

[0035] Step 1: Soak the cover ink glass to be treated in the cover ink remover for 3-10 minutes, then take out the cover ink glass after the ink has been peeled off;

[0036] In step 1, the cover ink remover is placed in a constant temperature heating device and heated to 55-65°C, and the cover ink glass is soaked in the heated remover, and at the same time, brushes and roller brushes are used to Clean the glass surface, under the action of external forces such as brushes, the ink removal rate can be improved and the processing time can be shortened; or, in step 1, the cover plate ink remover is place...

Embodiment 1

[0040] 1. Preparation of remover: Weigh 65 parts of N-methylpyrrolidone, 10 parts of ethylene glycol phenyl ether, 8 parts of formic acid, 8 parts of acetic acid, 8 parts of 35wt% hydrogen peroxide and 1 part of OP-10 in a stirred tank, Use a glass rod to fully mix and stir to prepare a uniformly mixed remover;

[0041] 2. Ink removal test: cut the cover ink glass into 6cm*4cm samples, pay attention not to scratch the glass during the cutting process, weigh the quality of the glass sample and record it as M 2 (unit g), put the above remover in a 100W ultrasonic instrument, and immerse the cut glass sample in the remover of the ultrasonic instrument for treatment, observe the peeling situation, wash it with pure water and heat it with a hot air after the peeling process is completed Dry, the time of peeling is recorded as T (unit s), weighs the quality of peeling after its peeling again and records as M 1 (unit g);

[0042] 3. Calculation of removal rate η:

[0043]

[00...

Embodiment 2

[0048] 1. Preparation of remover: Weigh 60 parts of N-methylpyrrolidone, 5 parts of ethylene glycol phenyl ether, 5 parts of formic acid, 5 parts of acetic acid, 0.5 part of 35wt% hydrogen peroxide and 0.1 part of OP-10 in a stirred tank, Use a glass rod to fully mix and stir to prepare a uniformly mixed remover;

[0049] 2. Ink removal test: the same as in Example 1;

[0050] 3. the calculation of removal rate η: same as embodiment 1.

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PUM

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Abstract

The invention relates to a cover plate ink remover. The cover plate ink remover comprises the following components in parts by weight: 20-90 parts of a main agent, 5-20 parts of a penetrating agent, 10-30 parts of a mixed acid accelerant, 0.5-10 parts of an oxidation accelerant and 0.1-3 parts of a surfactant, wherein the main agent is at least one of N-methyl pyrrolidone, dimethyl sulfoxide, N,N-dimethylformamide and N,N-dimethylacetamide, and the penetrating agent is at least one of ethylene glycol monobutyl ether, diethylene glycol butyl ether, propylene glycol butyl ether, ethyl acetate, butyl acetate and ethylene glycol phenyl ether. The mixed acid accelerant and the oxidation accelerant are adopted in the removing agent, so that the removing process of the ink is accelerated throughthe double accelerators, and thereby the removing rate of the ink is increased, and the removing agent has extremely high industrial application prospects.

Description

technical field [0001] The invention relates to an ink remover, in particular to an ink remover for a liquid crystal display cover plate and a preparation and use method thereof. Background technique [0002] In the production process of liquid crystal display, cover glass is one of the key materials. Liquid crystal displays have high requirements on the material properties and optical properties of the cover glass, and the cover glass is often screen-printed to form a light-shielding layer on the edge of the display screen. However, it is inevitable to appear in the screen printing process There are many defective inks. In order to improve the yield rate of products and reduce production costs, it is required to rework the defective products. [0003] At present, the heavy industry of the ink on the cover glass mainly uses chemical methods to remove the ink on the glass surface. The chemical composition of the UV ink used for the cover glass is generally acrylic, epoxy, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04
CPCC09D9/04C09D9/005
Inventor 刘亮亮黄志齐陈修宁黄京华王立中李晨庆
Owner KUNSHAN CITY BANMING ELECTRONICS SCI & TECH
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