Ultraviolet light cured coating for painting color TV casing

Abstract

The invention discloses an ultraviolet-light solid paint for color-TV shell, which comprises: saturated functional group acrylic polymer 5-15%, anti deep-drawing acrylate5-15%, low-functionality acrylate 5-15%, high-functionality acrylate 5-15%, acrylate epoxy group 10-25%, low-functionality monomer 10-25%, high-functionality monomer 0-5%, light initiator 2-5%, levelling agent 0.1- 0.3%, defoamer 0.1-0.3%, and solvent 5-25%. This method overcomes the require to exterior, increases production efficiency, and improves physical and chemical properties.

Description

technical field [0001] The invention relates to an ultraviolet light curing coating applied to the coating of color electric machine shells, belonging to the technical field of chemical coatings. Background technique [0002] Color TV shell coating is an important part of the color TV manufacturing process. It has the functions of preventing high-voltage leakage, enhancing the durability of plastic materials and providing decorative effects, so it has attracted the attention and attention of the industry. The traditional coating of color TV casings is mainly based on thermoplastic acrylic coatings, which generally have practical problems such as thin coatings, wear resistance, and poor decoration. In 2001, TCL introduced two-component polyurethane varnish coating (commonly known as "varnish") coating technology to high-end color TVs, which effectively enhanced the scratch resistance, wear resistance, anti-conductivity, high temperature and high humidity performance of color ...

AI Technical Summary

Problems solved by technology

However, the polyurethane system can only be cured at low temperature due to the restriction of plastics that are not resistant to high temperatures, which affects the reaction speed and makes the curing cycle longer.

Usually, after 60℃×25min, it must be kept at room temperature for 24 hours before grinding and polishing, and then it can be packed and transported after 48 hours, resulting in low utilization rate of production site and equipment, and low production efficiency.