Preparation method of printing ink varnish single-layer coating with high heat resistance

Abstract

The invention discloses a preparation method of a printing ink varnish single-layer coating with high heat resistance. The preparation method comprises the following procedures: 1) grinding and dispersing polyester modified methylphenyl silicone resin, titanium dioxide and barium sulfate to obtain a primary product; 2) adding octaphenyl polyoxyethyiene and the like into the primary product to obtain a secondary product; 3) adding hexamethoxymethyl melamine resin into the secondary product to obtain a printing ink main agent; 4) adding xylene and cyclohexanone into the printing ink main agent, and stirring to obtain printing ink coating with high heat resistance; 5) taking a glass slide, completely wiping the glass slide with absolute ethanol and performing drying treatment on the glass slide; and 6) coating the glass slide with printing ink varnish with high heat resistance, and performing solidifying and cooling treatment on the coated glass slide to obtain the printing ink varnish single-layer coating with high heat resistance. By adoption of the printing ink varnish single-layer coating with high heat resistance prepared by the method, tests of various properties of the printing ink varnish single-layer coating with high heat resistance can be facilitated, and accurate data are acquired.

Description

technical field [0001] The invention relates to the technical field of ink, in particular to a preparation method of a single-layer coating of high heat-resistant ink varnish. Background technique [0002] The intelligentization of electronic products is the development trend of the times. With the wide application of touch screens in smart phones, tablet computers and other fields, the touch screen industry has developed rapidly. The integrated capacitive touch screen (OGS) can meet the ultra-thin requirements of intelligent terminals of electronic products to the greatest extent, and is an inevitable choice for high-end brand terminals with touch screens in the future. The OGS touch screen is coated with ITO conductive film on the ink film layer. Since the ITO coating process needs to be completed at a high temperature of 280 ° C ~ 300 ° C, the touch screen ink must have excellent high temperature resistance. The existing high-temperature-resistant inks based on inorgani...

AI Technical Summary

Problems solved by technology

Existing high-temperature-resistant inks based on inorganic glass are difficult to maintain high-temperature thermal stability, and at the same time have good physical and mechanical properties and chemical reagent corrosion resistance

For example, some high-temperature resistant inks have good heat resistance and adhesion, but their silk screen printing process costs are high, which is not conducive to wide application in industry; some high-temperature resistant inks have good chemical corrosion resistance , adhesion and hardness, but its heat-resistant temperature is limited, and it is difficult to withstand baking at 200°C