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Vacuum coating surface color spraying technology

A technology of vacuum coating and color, applied in vacuum evaporation coating, metal material coating process, device for coating liquid on the surface, etc., can solve the problem of reducing the adhesion between coatings, affecting the quality of mobile phone shells, increasing production costs, etc. problems, to achieve the effect of reducing spraying times, reducing production costs and increasing adhesion

Inactive Publication Date: 2009-05-06
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of pigments to the two coatings, the consumption of pigments is relatively large, and the number of spraying is more, which not only reduces production efficiency, but also increases production costs. In addition, it also reduces the adhesion between coatings and affects the quality of mobile phone shells.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Embodiment, vacuum coating surface color spraying process, it comprises the following steps:

[0036] The first step is to spray UV primer on the product and UV light curing the sprayed UV primer;

[0037] The second step is to vacuum coat the product;

[0038] In the 3rd step, the product is sprayed with UV topcoat, and the sprayed UV topcoat is subjected to UV photocuring; the UV topcoat can add pigments of various colors, and the ratio of UV topcoat to pigment is 100 (main agent 1: 1) - ≥ 15%.

[0039] Said first step, which includes the following steps:

[0040] A, put the product on the automatic production line;

[0041] B. Wipe the product before treatment;

[0042] C, use the ion air gun to carry out automatic electrostatic dust removal on the product;

[0043] D. Spray UV primer on the product, and the film thickness of UV primer is 18±2um;

[0044] E, UV light curing is carried out on the sprayed UV primer, and the energy of UV light curing is 900±100mj / ...

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PUM

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Abstract

The invention relates to the technical field of plastic part surface treatment, in particular to a vacuum coating surface color spray painting process. The process comprises the following: a first step, which is to spray UV base paint on products and cure the UV base paint by UV light; and a second step, which is to perform product vacuum coating; and a third step, which is to spray UV finish paint onto the products and cure the UV finish paint by UV light. The UV finish paint contains pigments and the ratio of the UV finish paint to the pigments is from 100(main agent 1:1) to more than or equal to 15 percent. The process can reduce the consumption of the pigments and times of spray painting, improve production efficiency, reduce production cost, strengthen adhesive force between coatings and ensure quality of mobile phone cases.

Description

Technical field: [0001] The invention relates to the technical field of surface treatment of plastic parts, in particular to a vacuum coating surface color spraying process. Background technique: [0002] As an important communication tool, mobile phone has become more and more popular in people's daily life, and the mobile phone market also has great potential. With the development of the mobile phone market, consumers have higher and higher requirements for mobile phones. Therefore, the trend of mobile phone production will also be to pay more attention to the appearance design of mobile phones. The appearance of a mobile phone is largely determined by the mobile phone case, which is generally a plastic case. The color matching and gloss effect of the mobile phone case are important parameters for evaluating the appearance of a mobile phone and affect consumers' choices. [0003] At present, the traditional surface treatment process for mobile phone shells is to add pigme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00B05D7/24B05D3/06C23C14/22
Inventor 王建
Owner GUANGDONG JANUS SMART GRP CO LTD
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