High-decoration color alloy powder coating

Abstract

The invention relates to a high-decoration color alloy powder coating which is divided into a silver powder layer and a transparent powder layer. The high-decoration color alloy powder coating comprises a silver powder layer and a transparent powder layer, wherein the silver powder layer comprises 6:4 type polyester, E-12 epoxy resin, accessory ingredients, migration pigment and precipitated barium sulphate, and the transparent powder layer comprises TGIC (1,3,5-Triglycidyl Isocyanurate) type polyester, TGIC, crylic acid flatting agent and benzoin. The coating is divided into the silver powder layer and the transparent powder layer on the basis of the pigment migration principle, and the effect of covering metal primer with transparent colored paint can be obtained by coating twice. According to the invention, the final coating effect of the color alloy powder coating is obtained by coating twice. The bottom layer is the silver powder layer which is mainly used for covering and bearing pigment; after the bottom layer is coated, transparent powder is covered on the surface of the bottom layer; and when the transparent powder is solidified, pigment migration driving force is generated so that the pigment migrates to the transparent powder layer, and thus the effect of silver-based high-lustre colored paint is achieved.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a high-decoration color alloy powder coating. Background technique [0002] Although the powder coatings currently used in the market can get better results by using silver powder as the base and translucent paint to adjust the color by two-pass spraying, but due to the oil absorption of organic pigments, the leveling of the surface paint is greatly reduced, and it is easy to follow. A large number of shrinkage cavities appear; at the same time, the dispersion of organic pigments in powder coatings is much lower than that in liquid coatings, which makes the color distribution of translucent paints in powder coatings uneven, and it is easy to have different shades of coating colors. [0003] The pigment dispersion of powder coatings is mainly through initial premixing, melt extrusion and other means. Compared with the grinding process in liquid coatings, the pigments are far from fully dis...

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Problems solved by technology

[0002] Although the powder coatings currently used in the market can achieve better results by using silver powder as the base and translucent paint to adjust the color by two-pass spraying, but due to the oil absorption of organic pigments, the leveling of the surface paint is greatly reduced, and it is easy to follow. A large number of shrinkage cavities appear; at the same time, the dispersion of organic pigments in powder coatings is much lower than that in liquid coatings, which makes the color distribution of powder coatings translucent paints uneven, and it is easy to have different shades of coating colors

[0003] The pigment dispersion of powder coatings is mainly through initial premixing, melt extrusion and other means. Compared with the grinding process in liquid coatings, the pigments are far from fully dispersed, and the melt viscosity of powder coatings is high. Although a large amount of additives are added At the same time, due to the relatively simple coating process of powder coatings, it is basically impossible to do it except for several simple art types such as wrinkles, sand lines, hammer lines, tortoise lines, and floating flowers. Color conversion in a single coating, a single color greatly restricts the development of powder coatings in decorative coatings

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