Acid-resistant ink for integrated touch screen protection and preparation method thereof

Abstract

The invention provides acid-proof ink for protecting one glass solution (OGS) touch screens and a preparation method thereof, relating to ink. The acid-proof ink comprises 1-8 parts of curing agent, 5-50 parts of resin, 10-80 parts of solvents, 1-5 parts of emulsifier and 5-30 parts of filler by mass. The preparation method comprises the following steps: mixing natural resin, synthetic resin and the solvents, adding the emulsifier and heating the materials until the natural resin and the synthetic resin are totally dissolved, thus obtaining a mixture; stirring the prepared mixture under normal temperature and discharging the material when the temperature is cooled to the room temperature, thus obtaining mixed emulsion; adding the curing agent to the prepared mixed emulsion, adding the filler after stirring the materials and grinding the mixture, thus obtaining the liquid acid-proof ink for protecting OGS touch screens. The acid-proof ink has the advantages and technical effects that the ink has smaller particles and denser film, so that the ink can not permeate even if being strengthened; the ink has high particle packing density and is 5-10mu m thinner than the printing thickness of common protective ink; the stability of viscosity of the ink in the printing process can be maintained and the ink does not become dry easily, has good printing effects and does not stick to screen printing plates.

Description

Technical field [0001] The invention relates to an ink, in particular to an acid-resistant ink for protecting an integrated touch screen and a preparation method thereof. Background technique [0002] The integrated touch (OneGlassSolution, OGS) technology refers to the technology of directly forming an ITO conductive film and sensor on the protective glass. A piece of glass simultaneously plays the dual role of the protective glass and the touch sensor. The glass processed by OGS technology is cut to obtain an OGS touch screen. Compared with the traditional G / G touch technology, OGS technology has many advantages. For example, it can save a piece of glass substrate, and it can save a bonding process in the production process, thereby helping to reduce production costs and improve product yield. Moreover, the obtained OGS touch screen has the characteristics of lightness, thinness, and good light transmittance. However, after the glass is cut, cracks are prone to occur at the c...

AI Technical Summary

Problems solved by technology

The acid-resistant inks currently on the market are immature, have poor hydrofluoric acid resistance, and are not easy to remove the film. Cleaning requires alkaline water, which will damage the sensor part.