Zinc sulfide rainbow paste pigment, pigment manufacturing method and transparent laser paint film manufacturing method thereof

Abstract

The invention relates to a zinc sulfide rainbow slurry pigment, a pigment production method and a rainbow paint film production method. The pigment is composed of zinc sulfide tabular particles and asolvent; the method comprises the following steps: (1) coating a resin layer on a substrate; (2) forming a laser information layer by using a laser film-pressing technique on the resin layer; (3) depositing zinc sulfide on the laser information layer by a continuous winding vacuum evaporation coating method to obtain a transparent zinc sulfide film; (4) dissolving the resin in a continuous windingstripping tank with the solvent to separate the zinc sulfide film from the substrate to obtain mixed liquor of the solvent, the resin and the zinc sulfide fine sheet; and (5) crushing the mixed liquor, filtering the mixed liquor, adjusting the solid content with the solvent to obtain a transparent laser slurry pigment composed of the solvent and nano zinc sulfide tabular particles. The method forpreparing the paint film comprises the following steps: (1) preparing the paint by the zinc sulfide rainbow slurry pigment with acrylic mirror resin and the mixed solvent at a weight ratio of 1:1:15;(2) spraying the paint evenly on the surface of a carbon fiber board; (3) baking the surface at 90 DEG C for 60 min after surface drying to form the zinc sulfide laser paint film on the surface of the carbon fiber.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a zinc sulfide rainbow paste pigment, a pigment manufacturing method and a transparent laser paint film manufacturing method thereof. Background technique [0002] Rainbow pigment (laser paste pigment) is a kind of high-grade decorative anti-counterfeiting pigment that can produce different colors and colorful color-changing effects. It is a one-dimensional nano-sheet particle slurry made of aluminum. The coating / The ink on the printing substrate relies on the special nanostructure on the surface of the particles to produce colorful discoloration effects through the refraction and reflection of light. [0003] CN201210105500.2 discloses a preparation method of laser aluminum paste. Its purpose is to provide a kind of plastic film as raw material, through vacuum aluminum plating, laser molding to produce laser illusion effect, and then use laser cutting technology to pulverize t...

AI Technical Summary

Problems solved by technology

[0004] The shortcomings of its laser aluminum paste pigments are: first, there are dead spots in its different angle discoloration, and the color in the dead corners is dim and gray, especially when it is sprayed, there are dim and gray spots in the dead corners, which greatly affects Second, aluminum will oxidize and release hydrogen when it encounters water, so it cannot be exposed to water for a long time, so laser aluminum paste cannot be used in water-based systems; third, aluminum is not resistant to acid and alkali and is easy to oxidize. Alkali corrosion or oxidation will greatly reduce the discoloration effect. The laser aluminum paste requires a low acid value resin, and many applications have special requirements for adhesion and surface finish. The resin used at this time Often high acid value, laser aluminum paste is not corrosion resistant, its application adaptability is limited

The disadvantage of the preparation method of the laser aluminum paste is that it is first coated with aluminum, and then laser molded on the aluminum film. Due to the high hardness of the metal aluminum film, the molded nickel plate is greatly worn out, and nickel needs to be replaced frequently during production. plate, high production cost