Method for applying metal wire-imitated coating film on surface of engineering plastics

A technology of engineering plastics and metal imitation, which is applied in the direction of surface coating liquid devices, special surfaces, coatings, etc., can solve the problems of long process cycle, high cost, and large amount of metal consumption, so as to achieve a hard and smooth surface, The effect of excellent function and excellent appearance

Active Publication Date: 2014-05-07
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water electroplating process has the following disadvantages: (1) It consumes a lot of water and energy, and produces a large amount of waste water
(3) Emission of toxic waste gas
(4) Large amount of metal consumption
(6) High requirements on the surface of the substrate, narrow application
[0006] 1) The imitation copper door should go through 3 spraying and 3 baking, each drying time is 20-30min, and the process cycle is long
[0007] 2) It is necessary to spray a color-containing coating with a thickness of 200-300 μm, which is costly and complicated
[0008] 3) Chemical agents are required for degreasing and water washing, and waste water is discharged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Production example of an ABS imitation copper wire drawing faucet

[0029] 1) Injection-molded ABS masterbatch with red copper color treatment, and perform ion flame cleaning and activation (the condition is that the gas is combustion gas, and the activation time is 10s).

[0030] 2) The cleaned workpiece is sprayed with a layer of 15μm thick black paint, and the paint layer is baked with an IR lamp (60°C×20min).

[0031] 3) The dried workpiece is subjected to conventional wire drawing to obtain a wire-drawn surface.

[0032] 4) The workpiece after wire drawing is cleaned and activated by ion flame (the condition is that the gas is combustion gas, and the activation time is 10s).

[0033] 5) Spray the workpiece in step 4) with a layer of 20 μm thick translucent matt UV paint, bake the paint layer with an IR lamp (60°C×5min), and then cure it with a UV lamp (1000J / m 2 ×20s).

[0034] The products obtained by this process have the effect of imitating copper w...

Embodiment 2

[0041] Example 2 Production example of a PA imitation brass wire drawing decorative cover

[0042] 1) Inject the PA masterbatch with brass color treatment into the blank, and perform ion flame cleaning and activation (the condition is that the gas is a combustion gas, and the activation time is 15s).

[0043] 2) Spray a layer of 10μm thick black paint on the cleaned workpiece, and bake the paint layer with an IR lamp (75°C×15min).

[0044] 3) The dried workpiece is subjected to conventional wire drawing to obtain a wire-drawn surface.

[0045] 4) Perform ion flame cleaning and activation on the workpiece after drawing (the condition is that the gas is a combustion gas, and the activation time is 15s)

[0046] 5) Spray the workpiece in step 4) with a layer of 15 μm thick translucent matt UV paint, bake the paint layer with an IR lamp (60°C×5min), and then cure it with a UV lamp (1000J / m 2 ×20s).

[0047] The products obtained by this process have the effect of brass wire dra...

Embodiment 3

[0054] Example 3 Production example of a BMC thermosetting plastic blank imitating stainless steel wire drawing handle

[0055] 1) Injection-molded BMC pellets with stainless steel color treatment, and perform ion flame cleaning and activation (the condition is that the gas is combustion gas, and the activation time is 20s).

[0056] 2) The cleaned workpiece is sprayed with a layer of 20μm thick silver-white paint, and the paint layer is baked with an IR lamp (100°C×10min).

[0057] 3) The dried workpiece is subjected to conventional wire drawing to obtain a wire-drawn surface.

[0058] 4) Perform ion flame cleaning and activation on the workpiece after drawing (the condition is that the gas is a combustion gas, and the activation time is 20s)

[0059] 5) Spray the workpiece in step 4) with a layer of 25 μm thick translucent matt UV paint, bake the paint layer with an IR lamp (60°C×5min), and then cure it with a UV lamp (1000J / m 2 ×20s).

[0060] The products obtained by this...

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Abstract

The invention provides a method for applying a metal wire-imitated coating film on the surface of engineering plastics, and relates to a surface treatment method of the engineering plastics. The method for applying the metal wire-imitated coating film on the surface of engineering plastics can improve the function and the quality of a plastic metalized product, can simplify the technology, can reduce the production cost, and is water-saving and environment-friendly without needing any water liquid in the whole technological process. The method comprises the steps of adding dye into plastic master batch, and coloring; cleaning and activating a plastic blank in a drying way; spraying a color coat onto the plastic blank; performing the wire drawing to a work piece so as to obtain the surface with wire drawing veins; cleaning and activating the work piece in a drying way; and spraying finishing paint to the work piece with the wire drawing veins so as to apply the metal wire-imitated coating film on the surface of the engineering plastics.

Description

technical field [0001] The invention relates to a surface treatment method of engineering plastics, in particular to a method for obtaining an antique copper wire drawing decoration effect on the surface of engineering plastics. Background technique [0002] Plastic is widely used in various fields of people's life because of its light weight and low price, especially in the field of decoration. At present, the metal-like wire drawing decoration on the surface of plastic parts adopts the wire drawing after water electroplating, heat transfer wire drawing lines and imitation copper door coating process. However, the water electroplating process has the following disadvantages: (1) It consumes a lot of water and energy, and produces a large amount of waste water. (2) Use harmful chemical plating solutions and additives. (3) Emission of toxic waste gas. (4) A large amount of metal is consumed. (5) Use hexavalent chromium which is harmful to human body. (6) High requirement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/02B05D5/00
Inventor 吴子豹黄贤明颜文艺余水李明仁
Owner XIAMEN RUNNER IND CORP
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