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Coating film preparation process for electronic device shell

A preparation process and technology for electronic equipment, applied in the direction of ion implantation plating, metal material coating process, sputtering plating, etc., can solve the problems of weak metal texture, no three-dimensional layering, single surface effect of products, etc., to achieve The effect of strong three-dimensional layering on the surface and high reliability of the coating

Active Publication Date: 2016-02-17
DONGGUAN HUAQING OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary vacuum non-conductive coating has the following disadvantages: the surface effect of the product is single, there is no three-dimensional layering or the three-dimensional layering is not obvious
The metal texture is still not strong
Coating reliability is not high

Method used

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  • Coating film preparation process for electronic device shell
  • Coating film preparation process for electronic device shell
  • Coating film preparation process for electronic device shell

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Embodiment Construction

[0031] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0032] refer to figure 1 , In one embodiment, the material is a transparent PET (polyester) material, and the front of the material has a UV transfer layer pattern, such as: brushed pattern, CD pattern, sun pattern, batch pattern, woven pattern, sandblasting pattern , skin texture, illusion effect, bulging effect, cat's eye effect, matte surface, glossy surface, high-gloss surface effect, etc.; the reverse side of the material is a layer of PE dura in a peelable state. The front of the product is coated with an optical film layer to produce a three-dimensional and golden appearance effect. This 3D texture plus gold color effect is realized by the "medium plus metal" mixed plating method. The thickness of the optical coating is preferably controlled w...

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Abstract

A coating film preparation process for an electronic device shell comprises the following steps that ion bombardment is conducted, i.e., a transparent polyethylene glycol terephthalate (PET) sheet with one face subjected to UV transfer treatment is put into a vacuum coating chamber, and the surface of the PET sheet is subjected to ion bombardment; and film coating is conducted, i.e., the surface of the PET sheet is sequentially coated with a SiO2 film, a TiO2 film, an indium film and a SiO2 film in a vacuum film coating mode, and the parameters of vacuum film coating are as follows: the vacuum degree during film formation is from 4.0*E-3Pa to 2.0*E-3Pa, the current during SiO2 film coating is 50-150 mA, the current during TiO2 film coating is 350-390 mA, the evaporation resisting current during indium film coating is 280-300 mA, and the thicknesses of the SiO2 film, the TiO2 film, the indium film and the SiO2 film are sequentially seen in the specifications. The surface of a product processed by the process has the 3D effect with high surface three-dimensional sense, the product has the golden appearance with high metal sense, and the film coating reliability is high.

Description

technical field [0001] The invention relates to a coating preparation process for an electronic equipment shell. Background technique [0002] Due to the characteristics of easy molding and light weight, plastics are widely used in the manufacture of electronic product casings. As the electronic product market has higher and higher requirements for product appearance, people are no longer satisfied with the color of plastic itself, and electronic products with metallic luster and three-dimensional effect have attracted more and more attention. Electron beam evaporation coating (Electron beam evaporation coating) technology refers to the coating material under certain vacuum conditions, the electron gun uses physical specific means to organically convert the coating material, so that the coating material is converted into a particle or molecular state, deposited or adsorbed on the surface of the plastic material, Form a non-conductive coating layer. The biggest feature of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/20C23C14/26
Inventor 张维
Owner DONGGUAN HUAQING OPTICAL TECH
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