UV printing iron coating and preparation method thereof

Abstract

The invention relates to a UV (Ultraviolet) ferrous printing coating and a preparation method thereof. The UV ferrous printing coating is prepared from the following raw materials in parts by weight: 10 to 40 parts of acrylic resin, 30 to 70 parts of active monomer, 2 to 8 parts of photoinitiator, 8 to 10 parts of curing accelerator, and 0.1 to 2 parts of flatting agent, wherein the acrylic resin is a mixture of thermoplastic acrylic resin and epoxy acrylate; the active monomer is a mixture of 1,6-hexanediol diacrylate, neopentyl glycol propoxylate (1 po / oh) diacrylate and dipropylene glycol diacrylate. According to a UV ferrour printing coating formula provided by the invention, the solid content is nearly close to 100 percent, volatile organic solvents do not need to be adopted for diluting, heating equipment is not needed, the coating can be completely cured to form a film under the irradiation of an ultraviolet lamp, and compared with a traditional thermosetting stoving varnish coating, the man hour can be remarkably shortened, and the production efficiency is improved. Meanwhile, the cured film formed by the UV ferrous printing coating on a metal container can meet the performance requirements of good glossiness, big hardness, good adhesive force, high scratch resistance and high shock resistance.

Description

Technical field [0001] The invention relates to the technical field of coatings, in particular to a UV iron printing coating and a preparation method thereof. Background technique [0002] Among the products used for product packaging, metal container packaging occupies a large proportion to achieve aesthetics and protection. Gorgeous and exquisite metal container packaging usually depends on the performance of the iron printing coating. [0003] At present, the iron printing coatings circulating on the market are all thermosetting baking varnish coatings. The formulation system of thermosetting baking varnish coatings requires very high curing conditions. Usually, it needs to be heated to a temperature above 150℃ and bake for at least 15 minutes before it can be cured into a film. High energy consumption leads to high production costs. At the same time, traditional thermosetting baking paint coatings need to be diluted by adding a large amount of organic solvents, especially vol...

AI Technical Summary

Problems solved by technology

[0003] At present, the iron printing coatings circulating in the market are all thermosetting baking varnish coatings. The formulation system of thermosetting baking varnish coatings requires high curing conditions. Usually, it needs to be heated to a temperature above 150°C and baked for at least 15 minutes to cure and form a film. High energy consumption, resulting in high production costs

At the same time, when traditional thermosetting baking varnishes are used, a large amount of organic solvents need to be added for dilution, especially volatile organic solvents will cause great harm to the environment and human health

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