Spraying gradual-change composite-plate mobile-phone back shell

Abstract

The invention discloses a spraying gradual-change composite-plate mobile-phone back shell. The back shell includes a surface wear resistance ink layer, a PMMA film layer, a PC film layer, an LOGO pattern layer, a UV transfer-printing texture pattern layer, an optical film layer and a base color ink layer which are disposed from a top to a bottom in sequence. A first color ink layer and a second color ink layer laminated from a top to a bottom are also disposed between the LOGO pattern layer and the above UV transfer-printing texture pattern layer. Thickness of the first color ink layer descends from a left to a right in sequence. Thickness of the second color ink layer descends from a right to a left in sequence. Thickness of all parts of the gradual-change color ink layers in a length direction of the mobile-phone back shell is the same. Compared with the prior art, the mobile-phone back shell which can be made through research and development of numerous experiments and tens of yearsof work experience of the inventor shows a natural gradual-change effect, an outer surface of the entire mobile-phone back shell cannot have a color separation line, and is natural and beautiful, andthe technical problem that existing plastic back shells cannot be made with gradual-change texture is solved.

Description

technical field [0001] The invention relates to a mobile phone back cover, in particular to a composite board mobile phone back cover capable of presenting a gradient effect. Background technique [0002] Due to the particularity of the use of mobile phones, most of the mobile phone shells are made of plastic to prevent the mobile phone signal from being shielded. In order to increase the aesthetics of the plastic back shell, the surface of the plastic back shell is generally treated with a pattern layer. However, this kind of The pattern layer treatment can only make the back shell a single color, and cannot show the natural transition and gradient effect of the color. Although there are also one color for one half of the plastic back shell and another color for the other half for the gradient, it can only make the plastic back shell It is made of two colors, there is no gradient effect at all, and there will be a dividing line, because the gradient effect of the plastic ba...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a mobile phone back shell with a spray-painted gradient composite board to solve the problem that the mobile phone back shell of the double board board in the prior art cannot complete the gradient texture production

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