LCD water-base cleaning liquid

Abstract

The invention relates to a LCD water-base rinse-solution, a condensation substance (JFC) - a mixture of organic base, oxirane and high-grade fatty alcohol, surfactant and deionized water), the weight ratio of the components is: organic base (5 to 20 percent), JFC (1 to 10 percent), surfactant (1 to 10 percent), and the remained is deionized water; wherein, the surfactant takes at least one of teramethyl ammonium chloride, ethyoxylated nonyl amber-acid semi-ester sodium salt, triethanolamine oleate soap, SDBS or amine oxide OA. The invention has the advantages that the organic base has certain decomposing function, the active agent and organic are mutually soluble, and the double effects can better remove the residue on the product surface; the rinse-solution is non-toxic, not harmful to the health of workers, inflaming retarding, explosion-free and safe; the formulate of the rinse-solution is very flexible, capable to meet specific requirements of cleaning, and has sound effect on LCD and organic film cleaning and as well as removal of oil and grease, and so on.

Description

(1) Technical field: [0001] The invention relates to a cleaning liquid, in particular to a liquid crystal display (LCD) water-based cleaning liquid. (two) background technology: [0002] LCD cleaning solution is used to remove liquid crystal residues in the cracks of the LCD screen. There are three types of LCD cleaning agents: water-based cleaning agent, semi-aqueous cleaning agent, and solvent cleaning agent. Water-based and semi-aqueous cleaning agents are suitable for ultrasonic water cleaning process routes, and solvent cleaning agents are suitable for gas-phase ultrasonic cleaning process routes. Semi-aqueous and solvent-based cleaners dissolve liquid crystals. The water-based cleaning agent in the existing ultrasonic washing process is composed of inorganic alkali and some hydrocarbons. The inorganic alkali and organic matter are not miscible, so there will be residues after cleaning, which will affect the cleanliness of the surface, and some components endanger wor...

AI Technical Summary

Problems solved by technology

The water-based cleaning agent in the existing ultrasonic washing process is composed of inorganic alkali and some hydrocarbons. The inorganic alkali and organic matter are not miscible, so there will be residues after cleaning, which will affect the cleanliness of the surface, and some components endanger workers' health

Water-based cleaning to remove residual LCD liquid crystals is mainly based on the emulsification of surfactants and liquid crystals. The emulsification is more dependent on ultrasound, the surface tension of water is greater than that of solvents, and the wetting performance of the slit is poor.

At present, ODS cleaning agents such as CFC-113 have been eliminated internationally, and some semi-water-based cleaning agents also have many problems such as recycling.