Multi-color spraying process

Abstract

The invention discloses a multi-color spraying process and belongs to the technical field of surface manufacturing processes of materials. By spraying a treatment agent layer to a first color layer, asecond color layer is not in direct contact with the first color layer even if a second color is sprayed to a first region when the second color is sprayed, so that interpenetration or fusion of thefirst color layer and the second color layer is avoided, and the original color and luster and brightness of the first color layer and the second color layer are guaranteed. In addition, interpenetration or fusion of the second color layer and the treatment agent layer is further avoided. When the second color layer in the first region is removed by means of a 3D laser carving technology, the surface of the treatment agent layer is not affected, so that the boundary between the first color layer and the second color layer is orderly and clear after the second color layer in the first region iscarved. The boundary of two colors on a curved surface or a turned part on a shell can be orderly and clear, and the surface of the treatment agent layer is level and smooth, and the sense of beautyof the surface appearance is improved.

Description

technical field [0001] The invention relates to the technical field of material surface processing technology, in particular to a multi-color spraying technology. Background technique [0002] With the development trend of users' increasingly personalized requirements for electronic equipment, more and more electronic equipment casings adopt multi-color pattern designs. In order to realize the design of multi-color patterns, it is necessary to form multi-color patterns pattern. [0003] One of the commonly used techniques in the existing spraying process is to use different colors of paint layers to cover different areas of the shell surface, and then use lasers of different powers to paint other colors than the required colors according to the colors that need to be revealed in each area. Layers are sculpted away, exposing the paint layer of the corresponding color, to achieve the effect of precise dividing lines of color areas. However, due to the extremely thin thicknes...

AI Technical Summary

Problems solved by technology

However, due to the extremely thin thickness of the paint layer itself, multiple different engraving powers need to be determined according to different engraving depths after multi-layer superimposition, and usually the numerical differences between multiple engraving powers are very small, so the engraving process is very demanding , it is easy to have unclear boundaries between colors or paint leakage

Moreover, there will be interpenetration between the paint layers of different colors. If you want to fully reveal the color of the underlying layer, you must also engrave the interpenetrating part between the paint layers of the two colors, thus resulting in a paint layer that reveals the color. The surface is rough and uneven, reducing the aesthetics of the appearance

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