Vacuum coating layer and coating method thereof

A vacuum coating and coating technology, which is applied in the field of coatings, can solve problems such as difficulty in satisfying hardness and wear resistance, affect UV curing effect, and affect photoinitiator absorption, etc., to achieve excellent adhesion, excellent weather resistance, and good hardness Effect

Inactive Publication Date: 2021-12-28
HUIZHOU FEIKAI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the addition of UV absorbers and hindered amine light stabilizers can reduce the yellowing phenomenon, it will also affect the absorption of specific wavelengths of ultraviolet light by the photoinitiator, thereby affecting the UV curing effect; and by using resins with good weather resistance, Although it can improve the yellowing of the coating, the cost of raw materials will be relatively high
In addition, most of the existing vacuum coating coatings that are disclosed focus on the metal texture experience, but their hardness and wear resistance are difficult to meet the more stringent automotive interior testing standards

Method used

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  • Vacuum coating layer and coating method thereof
  • Vacuum coating layer and coating method thereof
  • Vacuum coating layer and coating method thereof

Examples

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Effect test

preparation example Construction

[0048] The preparation method of the sample in following examples 1~5 is as follows:

[0049] (1) Preparation of primer: Add aliphatic urethane acrylic resin, urethane modified epoxy acrylate and trimethylolpropane triacrylate in turn to the container, add 1 / 3 of the solvent in the formula, and turn it at about 700 rpm Disperse fully and evenly at a speed of 1 / min; then add surface wetting agent, and then continue to disperse at about 700 rpm; dissolve the photoinitiator with 1 / 3 of the organic solvent, and add the dissolved mixture to the container to disperse together , then disperse evenly at about 1000 rpm, continue to disperse for about 25 minutes, then add the remaining solvent to adjust the viscosity (8.5-12s, Iwata No. 2 cup, 25°C) to obtain an ultraviolet (UV) primer, use Filter with 400 mesh filter cloth and pack.

[0050] (2) Preparation of intermediate paint (the first main agent): put hydroxyacrylate A and epoxy resin modified hydroxyacrylic resin into the contai...

Embodiment 1

[0059] Table 1 primer raw material:

[0060]

[0061] Paint in Table 2 (the first main agent)

[0062]

[0063] Table 3 Topcoat (second main agent)

[0064]

[0065]

Embodiment 2

[0067] Table 4 primer raw materials:

[0068]

[0069] Paint in Table 5 (the first main agent)

[0070]

[0071] Table 6 Topcoat (second main agent)

[0072]

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Abstract

The invention relates to the technical field of paint, in particular to a vacuum coating layer and a coating method thereof. The vacuum coating layer comprises a primer layer, a metal coating layer, a middle paint layer and a finish paint layer which are sequentially stacked, the middle paint layer is made of hydroxyl acrylic resin with a low hydroxyl value; the finish paint layer is made of acrylic resin with a high hydroxyl value; the hydroxyl value of the acrylic resin with the low hydroxyl value is not higher than 3wt%, and the hydroxyl value of the acrylic resin with the high hydroxyl value is not lower than 3.5 wt%. Through interaction of the primer layer, the metal coating layer, the middle paint layer and the finish paint layer, the coating layer which is good in hardness, wear-resistant, weather-resistant and excellent in high-temperature and high-humidity resistance and has metal texture is prepared. Wherein the middle paint layer serves as an adhesion promoting layer, the adhesion between the middle paint layer and the metal coating layer is excellent, it can be guaranteed that the finish paint layer can be stably attached to the metal coating layer , and nano color paste can be added to make the coating layer achieve the metal texture and have the colorful effect at the same time.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a vacuum coating coating and a coating method thereof. Background technique [0002] With the continuous development of vacuum plating technology, PVD (Physical Vapor Deposition) coating and NCVM (Nonconductive vacuum metallization) vacuum non-conductive electroplating have been widely used, and these technologies have been gradually applied to mobile phones, computers, automobiles, etc. High-performance parts such as accessories require the transfer of plastic parts. Therefore, the coating industry of vacuum electroplating has shifted to plastic parts. At present, the vacuum coating UV coating is widely used in the market. By spraying multiple layers of UV paint on the surface of the substrate, it can produce a high metallic surface effect after use. However, in addition to the need to produce a strong metallic surface effect to increase decoration and aesthetics, markets suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D175/04C23C14/20B05D5/06B05D7/02
CPCC09D175/14C09D5/002C09D5/18C09D175/04C23C14/20B05D5/068B05D7/576B05D7/51B05D7/02B05D2502/005B05D2502/00C08L75/14C08L63/10
Inventor 黄嘉成陈修明
Owner HUIZHOU FEIKAI NEW MATERIAL CO LTD
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