Surface treatment process of plastic base material and plastic part

A plastic substrate and surface treatment technology, which is applied in the direction of pretreatment surface, surface coating liquid device, polyurea/polyurethane coating, etc., can solve the problems of low production efficiency, high cost, long cycle, etc., and achieve production efficiency Improvement, yield improvement, low cost effect

Inactive Publication Date: 2017-09-29
HUAQIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the complicated process operation and many procedures in the existing preparation process of the plastic parts with the effect of imitating metal and matte homogeneity, requiring the use of 3D laser engraving process, long cycle and expensive equipment. Low production efficiency, high cost, and low yield of plastic parts, etc., provide a surface treatment process for plastic substrates and plastic parts

Method used

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  • Surface treatment process of plastic base material and plastic part
  • Surface treatment process of plastic base material and plastic part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A surface treatment process for a plastic substrate, comprising the following steps:

[0038] (1) Spray a primer on the surface of a plastic substrate with fire pattern texture, preheat and cure to obtain a primer layer. Wherein, the preparation method of the plastic base material with fire pattern texture includes the following steps: processing the plastic base material by electric discharge, so that the middle part of the plastic base material forms a fire pattern texture similar to metal sandblasting. Among them, the fire pattern is No. 21 fire pattern; the depth of the fire pattern texture is 15 μm. For the side of the plastic substrate with fire pattern texture, the area without fire pattern texture shall be treated with mirror polishing to achieve a specular highlight effect. The primer is a photocurable UV primer of Shenzhen Cicai Chemical Technology Co., Ltd., model D4012. Among them, after spraying the primer, preheat by infrared radiation at 50°C for 10 min...

Embodiment 2

[0044] A surface treatment process for a plastic substrate, comprising the following steps:

[0045] (1) Spray a primer on the surface of a plastic substrate with fire pattern texture, preheat and cure to obtain a primer layer. Wherein, the preparation method of the plastic base material with fire pattern texture includes the following steps: processing the plastic base material by electric discharge, so that the middle part of the plastic base material forms a fire pattern texture similar to metal sandblasting. Among them, the fire pattern is No. 24 fire pattern; the depth of the fire pattern texture is 25 μm. For the side of the plastic substrate with fire pattern texture, the area without fire pattern texture shall be treated with mirror polishing to achieve a specular highlight effect. The primer is a photocurable UV primer of Shenzhen Cicai Chemical Technology Co., Ltd., model D4012. Among them, after spraying the primer, use infrared radiation to preheat at 60°C for 5 ...

Embodiment 3

[0051] A surface treatment process for a plastic substrate, comprising the following steps:

[0052] (1) Spray a primer on the surface of a plastic substrate with fire pattern texture, preheat and cure to obtain a primer layer. Wherein, the preparation method of the plastic base material with fire pattern texture includes the following steps: processing the plastic base material by electric discharge, so that the middle part of the plastic base material forms a fire pattern texture similar to metal sandblasting. Among them, the fire pattern is No. 22 fire pattern; the depth of the fire pattern texture is 20 μm. For the side of the plastic substrate with fire pattern texture, the area without fire pattern texture shall be treated with mirror polishing to achieve a specular highlight effect. The primer is a photocurable UV primer of Shenzhen Cicai Chemical Technology Co., Ltd., model D4012. Among them, after spraying the primer, use infrared radiation preheating method at 55°C...

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Abstract

The invention discloses a surface treatment process of a plastic base material and a plastic part. The treatment process disclosed by the invention comprises the following steps: (1) spraying primer onto the surface of a plastic base material with spark patterns texture, preheating, curing, thus obtaining a primer layer; (2) plating a metal coating on the surface of the primer layer; (3) spraying intermediate paint onto the surface of the metal coating, preheating, curing, thus obtaining an intermediate paint layer; and (4) spraying finishing paint onto the surface of the intermediate paint layer, preheating, curing, thus obtaining a surface coating. By adopting the treatment process, a plastic part with a pseudo-metal and matte effect can be produced only by virtue of three times of spraying and one time of true plating, and fewer procedures are needed; and moreover, a 3D laser etching process is not needed by virtue of the treatment process of the invention, the cost is low, and the production efficiency is greatly increased; and in addition, the industrial first pass yield of the plastic part produced by virtue of the treatment process of the invention can reach up to 80 percent, and the yield is greatly increased.

Description

technical field [0001] The invention relates to a surface treatment process of a plastic base material and a plastic part. Background technique [0002] At present, the preparation process of plastic parts of electronic products (such as mobile phone shells) with the effect of imitating metal and matte in one body is the ordinary NCVM (non-conductive electroplating) imitating metal process combined with the 3D laser engraving process. Although the existing process makes the plastic parts obtain a better effect of imitating metal and matte, but the existing process requires 5 times of spraying + 1 time of real plating + 1 time of radium engraving. The process operation is complicated and the cost is high. The main performance The production efficiency is low due to many processes, the long cycle time of 3D laser engraving, and the laser engraving equipment is relatively expensive. In addition, the yield rate of plastic parts produced by the existing process is low, and the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D175/14C09D7/12B05D7/02B05D7/00B05D3/02B05D3/06
Inventor 雷小红
Owner HUAQIN TECH CO LTD
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