Shell and manufacture method thereof

Abstract

A device housing and a method of fabricating the device housing are provided. The device housing includes a base housing, a bottom coating, a vacuum evaporation coating, an intermediate coating, a fill coating and a top coating. The base housing is recessed to define a plurality of textured portions. The bottom coating is formed on the base housing and covers the textured portions. The vacuum evaporation coating is formed on the bottom coating. The intermediate coating is formed on the vacuum evaporation coating and has recessed sections corresponding to the textured portions. The fill coating is formed on the intermediate coating and fills the recessed sections. The top coating covers the intermediate coating and the fill coating.

Description

technical field [0001] The invention relates to a casing and a manufacturing method thereof. Background technique [0002] At present, vacuum coating the surface of the plastic shell of portable electronic devices such as mobile phones, digital cameras, personal digital assistants, and notebook computers to make their appearance have a metallic texture has become a common means to increase the added value of such products. [0003] After the vacuum coating is carried out on the surface of the plastic shell, one-color paint and one-side paint layer are usually applied on the surface of the vacuum coating layer. One of the existing methods of making trademarks on vacuum coating products is to directly print patterns or letters on the topcoat layer on the product surface to obtain trademarks. In this method, due to the high surface tension of the topcoat layer, it is difficult for the ink to be evenly distributed on the surface that needs to be printed. position, it is easy to...

AI Technical Summary

Problems solved by technology

One of the existing methods of making trademarks on vacuum coating products is to directly print patterns or letters on the topcoat layer on the product surface to obtain trademarks. In this method, due to the high surface tension of the topcoat layer, it is difficult for the ink to be evenly distributed on the surface that needs to be printed. position, it is easy to form ink spots, and the adhesion is poor, which is easy to cause the appearance defect of the trademark; on the other hand, because the printed pattern or letter is higher than the outer surface of the product, the pattern or letter is easy to be worn or even damaged during use. Flaking, which affects the appearance of the product

[0004] Another method is to hollow out the decorative layers on the surface of the product by laser engraving to form a score of the preset trademark, and then fill the score with ink to form a trademark. This method prolongs the product cycle due to the increase of the laser engraving process, and the laser The machine is easy to deviate, resulting in a decrease in the yield of the entire product, and the filled ink is located on the outermost layer, without a protective layer, and is easy to wear

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