Ultraviolet identifiable light-curing fluorescent anti-counterfeiting paint and preparation method thereof

Abstract

The invention provides an ultraviolet identifiable light-curing fluorescent anti-counterfeiting paint which comprises the following components: photocurable aliphatic polyurethane resin, photocurablealiphatic epoxy acrylate, photocurable active monomer, cracking visible light initiator, spherical silicon powder, a wetting agent, a defoamer, a rheological additive, a fluorescer, and a dispersant.The invention also provides a method of preparing the paint. The paint provided by the invention can use visible light with a wavelength of 405 nm to cure the paint, have fast curing speed, low energyconsumption, environmental protection and low VOC, high construction efficiency and low construction cost; the paint provided by the invention also has good adhesion to various substrates, excellentcoating film mechanical properties, good weather resistance and scratch resistance; the paint coating provided by the invention is transparent and colorless in sunlight, which does not affect the surface appearance of the paint; and blue fluorescence with 450 to 500 nm wavelength is only emitted by the coating under the ultraviolet light with 380 nm or less.

Description

technical field [0001] The invention relates to a UV-identifiable light-curing fluorescent anti-counterfeiting coating and a preparation method thereof. Background technique [0002] At present, fluorescent materials are mostly used in indoor paints, fluorescent sticks, etc. The fluorescent materials involved are mainly organic fluorescent substances excited by sunlight, and light-curing anti-counterfeiting coatings are still blank in the market. [0003] Moreover, although the existing anti-counterfeiting coating is a water-based system, it adopts thermal curing, the curing speed is slow, the temperature and humidity requirements for construction are high, and there is a large amount of VOC emissions, which will cause serious air pollution and high energy. consumption, and the surface properties of the cured film are poor. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide a UV-identifiable light-curing fluorescent anti-counterfeiting co...

AI Technical Summary

Problems solved by technology

[0002] Fluorescent materials are currently mostly used in indoor paints, fluorescent sticks, etc. The fluorescent materials involved are mainly organic fluorescent substances excited by sunlight, and light-curing anti-counterfeiting coatings are still blank in the market

[0003] Moreover, although the existing anti-counterfeiting coating is a water-based system, it uses heat curing, the curing speed is slow, the temperature and humidity requirements for construction are high, and there is a large amount of VOC emissions, the construction will cause serious air pollution and high energy consumption. Consumption, and the surface properties of the cured coating film are poor