Method for treating surface of workpiece

A technology of workpiece and dyeing solution, which is applied in the direction of surface reaction electrolytic coating, electrolytic coating, coating, etc., can solve the problems of large color difference variation, product fading, uneven dyeing, etc., to improve UV resistance and increase dyeing processing time , Improve the effect of adsorption performance

Active Publication Date: 2018-03-20
GUANGDONG EVERWIN PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors of the present application have found in the long-term research and development process that existing products have always had relatively large problems, such as the large amount of color difference variation after long-term ultraviolet irradiation. The product fades; at the same time, the workpiece often has problems of uneven dyeing and local color depth during the dyeing process

Method used

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  • Method for treating surface of workpiece
  • Method for treating surface of workpiece
  • Method for treating surface of workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Second staining solution (staining solution with red dye ratio): 1g / L of TAC PINK-RL and 1g / L of Orange 3LW, the amount of sodium sulfate added is 3g / L, and the concentration after adding sodium sulfate: 2g / L TAC PINK-RL and 2g / L Orange 3LW. The workpiece is a metal structural part of a mobile phone.

[0046] QUV aging test results: Δa=1, ΔE=3.

Embodiment 2

[0048] Second staining solution (staining solution with red dye ratio): 1.2g / L of TAC PINK-RL and 1.5g / L of Orange3LW, the amount of sodium sulfate added is 4g / L, and the concentration after adding sodium sulfate: 2.5g / L L of TAC PINK-RL and 3g / L of Orange3LW. The workpiece is a metal structural part of a mobile phone.

[0049] QUV aging test results: Δa=0.2, ΔE=1.

Embodiment 3

[0053] The second staining solution (staining solution with rose gold dye ratio): 0.3g / L TAC PINK-GLH and 0.05g / L TACYELLO-SGL, the amount of potassium sulfate added is 4g / L, and the concentration after adding potassium sulfate: 0.5g / L TAC PINK-GLH and 0.4g / L TAC YELLO-SGL. The workpiece is a metal structural part of a mobile phone.

[0054] QUV aging test results: Δa=1, ΔE=1.5.

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Abstract

The invention discloses a method for treating the surface of a workpiece. The method includes the steps that first dyeing liquid carrying sulfonic groups is provided; and the workpiece is put into thefirst dyeing liquid, and dyeing treatment is conducted on the surface of the workpiece. By means of the above manner, the technical support can be provided for improving of sun-proof performance andcolor uniformity of the workpiece.

Description

technical field [0001] The present application relates to the technical field of workpiece coloring, in particular to a method for treating the surface of a workpiece. Background technique [0002] 3C products are the combination of computers, communications and consumer electronics, usually including computers, tablet computers, mobile phones, digital cameras, walkmans, electronic dictionaries, audio-visual playback hardware devices or Digital audio players and more. [0003] With the improvement of users' aesthetic taste, it is usually required that the appearance of 3C products has good light fastness, is not easy to fade, and has uniform color. However, the inventors of the present application have found in the long-term research and development process that existing products have always had relatively large problems, such as the large amount of color difference variation after long-term ultraviolet irradiation. The product fades; at the same time, the workpiece often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/24
Inventor 毛海鸿
Owner GUANGDONG EVERWIN PRECISION TECH
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