Silica gel low-temperature laser-etching ink

Abstract

The invention belongs to the ink field, in particular to a silica gel low-temperature laser-etching ink which is used on the surface of organic silicon rubber and can be subjected to a cross linking reaction at 100 DEG C. The ink is prepared by using specific vinyl-terminated polymethylvinylsiloxane as the basic material, complexing with appropriate methyl-terminated polymethylhydrosiloxane, pigments, fillers, assistants and solvents, dispersing and milling. The ink is suitable for various operating modes such as air spray, screen printing, pad transfer printing and the like, and can be used for surface decoration of organic silicon products. By using the laser-etching technology to etch the silica gel low-temperature laser-etching ink, the surface of the silicon rubber product can be endued with abundant patterns and characters, and the productive capacity is ultra high.

Description

technical field [0001] The invention belongs to the field of inks, in particular to a low-temperature laser engraving ink for silicone rubber used on the surface of silicone rubber. Background technique [0002] Due to the outstanding insulation, weather resistance, elasticity, fatigue resistance and other properties of silicone rubber, silicone rubber products are more and more used in various industries. For a long time, thermosetting silicone printing ink has been used for the decoration of the surface of silicone rubber. This ink has two outstanding shortcomings: a. This ink needs to be baked at 180-200 degrees Celsius for 60 minutes to achieve the full vulcanization effect. High energy consumption; b. The production capacity of a single printing operation is low, and it is impossible to achieve the appearance effect of more complex patterns. [0003] The reports about the application of laser radium engraving technology on the surface of silica gel have been seen, such...

AI Technical Summary

Problems solved by technology

For a long time, thermosetting silicone printing ink has been used for the decoration of the surface of silicone rubber. This ink has two outstanding shortcomings: a. This ink needs to be baked at 180-200 degrees Celsius for 60 minutes to achieve the full vulcanization effect. High energy consumption; b. The production capacity of a single printing operation is low, and it is impossible to achieve the appearance effect of more complex patterns

[0004] Although the above literature reports involve the application of silica gel materials to the laser engraving process, none of them propose a laser engraving ink that uses low-temperature vulcanization technology to better adhere to the surface of silica gel.

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