Light hardening colouring coating and painting resin product

Abstract

The invention provides a light hardening type coloring paint and coating resin product using the paint. The paint can shorten coating process time and reuse material which is not adhered on the coated article as spray. The light hardening type coloring paint containing ultraviolet ray absorbent in resin component capable of addition polymerization and at least containing luster filling material as pigment is coated on a resin wheel hub dust-proof cover (10). The resin component contains methacrylic acid ester monomer (A), polyurethane methylacrylate oligomer (B), pigment for making average light transmittance in wavelength region of 350nm-450nm of hardening coating film is more than or equal to 1%, and two or more than two light polymerization initiators capable of generating free radical by light irradiation, wherein, the mass ration of A to B is 1 / 9 to 7 / 3.

Description

technical field [0001] The present invention relates to a photocurable colored paint containing a glossy filler and a coated resin product coated with the paint. Background technique [0002] Currently, resin products for automobile exteriors made of resin are often painted with colored paint on the surface in order to maintain an appearance in harmony with other parts of the automobile. [0003] On the other hand, if a so-called lacquer coating or a two-component thermosetting coating is used in the coating, the process time becomes longer because the solvent contained in a large amount in the coating is evaporated to harden the coating film, and, Due to restrictions on the amount of solvents discharged from factories in recent years, it has become difficult to use paints containing a large amount of organic solvents. In addition, if paints containing a large amount of organic solvents are used, facilities for incineration and recovery of organic solvents are required. etc...

AI Technical Summary

Problems solved by technology

[0004] However, if it is desired to use colored coatings containing pigments such as glossy fillers as energy ray-curable coatings, it is difficult for energy rays to reach the deep part of the coating film for the following reasons: 1. The coating film needs to be thick enough to mask the primer; 2. . The irradiated energy rays are reflected and absorbed by pigments such as glossy fillers contained in the coating film. 3. In the case of adding a UV absorber to prevent deterioration of the coating film over time, the UV absorber will absorb the radiation. energy line

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