Cover plate ink remover and preparation and use method thereof

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...

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

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