Plated film paint system, plastic part with metal effect coating, and preparation method of plated film paint system

Abstract

The invention discloses a plated film paint system. The plated film paint system comprises a transparent UV priming paint, a transparent UV intermediate coat used for coating a clad layer, a colored paint, and a transparent UV finishing coat; the transparent UV intermediate coat comprises, by weight, 20 to 50% of polyurethane acrylate, 5 to 10% of hydroxy acrylic resin, 10 to 20% of acetic ester,10 to 20% of butyl acetate, 10 to 20% of 2,6-Dimethyl-4-heptanone, and 0.5 to 3% of an auxiliary agent, wherein the molecular weight of the hydroxy acrylic resin is larger than 50000. The plated filmpaint system is adopted in preparation of the plastic part with metal effect coating, laser carving is carried out after coating of all the coats, the transparent UV finishing coat and the colored paint layer are removed via calcinations, clad layer metal effect is achieved. Compared with the prior art, the technology possesses following advantages: technology process is simple, production efficiency is increased, paint layer clunging force is high, and color change is not caused after laser carving.

Description

technical field

[0001] The invention relates to the field of coatings, in particular to a coating coating system. In addition, the invention also relates to a plastic part with a metallic effect coating and a production process thereof. Background technique

[0002] At present, due to the characteristics of fast curing speed, low energy consumption, low VOC emission, and less pollution, UV-curable coatings are widely used in many fields such as electronic products, home appliances, and automobile lights. In order to form a coating with a metallic texture effect on the surface of non-metallic materials, a coating is usually performed on the surface of the object to be treated, and then the metal material is deposited on the surface of the coating to form a layer of metal with a strong metallic feel and high gloss. The film is protected by coating again on the metal film. The disadvantage is that the adhesion between the coatings is poor and unstable.

[0003] Spray multiple...

Examples

preparation example Construction

[0043] The above-mentioned preparation process of plastic parts with metal effect coating combines the coating obtained by the physical vapor deposition method with the color paint effect and laser engraving technology to form a new surface treatment process, which can produce imitation anodic oxidation and high-quality metal effects Combined plastic parts, among which, the transparent UV medium paint layer adopts high molecular weight hydroxy acrylic resin to achieve good adhesion between layers. At the same time, the present invention performs radium engraving after all the coatings are painted. Compared with the process in the prior art where the color paint layer and the coating are engraved with radium and then the topcoat is sprayed, the process flow is simplified and the production efficiency is improved.

[0044] Preferably, the viscosity of the transparent UV primer in step (1) is 8.0-9.5s, the leveling time is 5-8min, the baking temperature is 50-60°C, and the UV curi...

Embodiment 1

[0052] The film-coating paint system of present preferred embodiment comprises transparent UV primer, be coated on the transparent UV intermediate paint on the plated layer, color paint and transparent UV topcoat; Transparent UV primer comprises the polyurethane acrylic acid of 60% by weight percentage ester, 19% ethyl acetate, 19% butyl acetate, 2% additives; the coating adopts indium with a purity of 99.9%, and the quality of indium used is 4.0g; the transparent UV intermediate paint includes 50% polyurethane acrylate, 5% hydroxy acrylic resin, 20% ethyl acetate, 10% butyl acetate, 12% diisobutyl ketone, 3% additives, the molecular weight of hydroxy acrylic resin is greater than 50,000; The color paint comprises 40% fluorine-modified hydroxyacrylic resin, 10% thermoplastic acrylic resin (the molecular weight of thermoplastic acrylic resin is 150000), 5% metallic aluminum pigment, 5% mica powder, 5% Color paste, 13% butyl acetate, 20% ethyl acetate, 2% additives. The color p...

Embodiment 2

[0065] The film-coating coating system of present preferred embodiment comprises transparent UV primer, be coated on the transparent UV intermediate paint on the plated layer, color paint and transparent UV topcoat; Transparent UV primer comprises the polyurethane acrylic acid of 57% by weight percentage Ester, 20% ethyl acetate, 20% butyl acetate, 3% additives; the coating is made of aluminum, and the quality of the aluminum used is 5.0g;

[0066] The transparent UV intermediate paint comprises 50% polyurethane acrylate, 10% hydroxyl acrylic resin, 17% ethyl acetate, 10% butyl acetate, 10% diisobutyl ketone, 3% additives, the molecular weight of hydroxyacrylic resin is greater than 50000;

[0067] The color paint comprises 20% fluorine-modified hydroxyacrylic resin, 20% thermoplastic acrylic resin (molecular weight 200000 of thermoplastic acrylic resin), 5% metallic aluminum pigment, 5% mica powder, 5% Color paste, 23% butyl acetate, 20% ethyl acetate, 2% additives. The col...

technical field

[0001] The invention relates to the field of coatings, in particular to a coating coating system. In addition, the invention also relates to a plastic part with a metallic effect coating and a production process thereof. Background technique

[0002] At present, due to the characteristics of fast curing speed, low energy consumption, low VOC emission, and less pollution, UV-curable coatings are widely used in many fields such as electronic products, home appliances, and automobile lights. In order to form a coating with a metallic texture effect on the surface of non-metallic materials, a coating is usually performed on the surface of the object to be treated, and then the metal material is deposited on the surface of the coating to form a layer of metal with a strong metallic feel and high gloss. The film is protected by coating again on the metal film. The disadvantage is that the adhesion between the coatings is poor and unstable.

[0003] Spray multiple...

Examples

preparation example Construction

[0043] The above-mentioned preparation process of plastic parts with metal effect coating combines the coating obtained by the physical vapor deposition method with the color paint effect and laser engraving technology to form a new surface treatment process, which can produce imitation anodic oxidation and high-quality metal effects Combined plastic parts, among which, the transparent UV medium paint layer adopts high molecular weight hydroxy acrylic resin to achieve good adhesion between layers. At the same time, the present invention performs radium engraving after all the coatings are painted. Compared with the process in the prior art where the color paint layer and the coating are engraved with radium and then the topcoat is sprayed, the process flow is simplified and the production efficiency is improved.

[0044] Preferably, the viscosity of the transparent UV primer in step (1) is 8.0-9.5s, the leveling time is 5-8min, the baking temperature is 50-60°C, and the UV curi...

Embodiment 1

[0052] The film-coating paint system of present preferred embodiment comprises transparent UV primer, be coated on the transparent UV intermediate paint on the plated layer, color paint and transparent UV topcoat; Transparent UV primer comprises the polyurethane acrylic acid of 60% by weight percentage ester, 19% ethyl acetate, 19% butyl acetate, 2% additives; the coating adopts indium with a purity of 99.9%, and the quality of indium used is 4.0g; the transparent UV intermediate paint includes 50% polyurethane acrylate, 5% hydroxy acrylic resin, 20% ethyl acetate, 10% butyl acetate, 12% diisobutyl ketone, 3% additives, the molecular weight of hydroxy acrylic resin is greater than 50,000; The color paint comprises 40% fluorine-modified hydroxyacrylic resin, 10% thermoplastic acrylic resin (the molecular weight of thermoplastic acrylic resin is 150000), 5% metallic aluminum pigment, 5% mica powder, 5% Color paste, 13% butyl acetate, 20% ethyl acetate, 2% additives. The color p...

Embodiment 2

[0065] The film-coating coating system of present preferred embodiment comprises transparent UV primer, be coated on the transparent UV intermediate paint on the plated layer, color paint and transparent UV topcoat; Transparent UV primer comprises the polyurethane acrylic acid of 57% by weight percentage Ester, 20% ethyl acetate, 20% butyl acetate, 3% additives; the coating is made of aluminum, and the quality of the aluminum used is 5.0g;

[0066] The transparent UV intermediate paint comprises 50% polyurethane acrylate, 10% hydroxyl acrylic resin, 17% ethyl acetate, 10% butyl acetate, 10% diisobutyl ketone, 3% additives, the molecular weight of hydroxyacrylic resin is greater than 50000;

[0067] The color paint comprises 20% fluorine-modified hydroxyacrylic resin, 20% thermoplastic acrylic resin (molecular weight 200000 of thermoplastic acrylic resin), 5% metallic aluminum pigment, 5% mica powder, 5% Color paste, 23% butyl acetate, 20% ethyl acetate, 2% additives. The col...

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