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Preparation method and film-painting method of LED ultraviolet curing colorful cathode electrophoretic paint color paste

A color electrophoresis and cathodic electrophoresis technology, applied in the field of electrophoretic paint, can solve the problems of difficult process control, complicated operation, pollution, etc., and achieve the effect of improving operability and economic value, uniform color of paint film, and good physical and chemical properties

Inactive Publication Date: 2019-03-01
深圳市天泽科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the color paints used for plastic electroplating parts on automobiles are solvent-based spray paints. The coating process is to spray color paint on plastic electroplating parts. The spraying process will produce a large amount of volatile organic compound gas emissions, which will pollute the environment. The process is not easy to control, prone to chromatic aberration, uneven coverage on the surface of the workpiece, easy to have dead angles that cannot be completely sprayed and covered, and ultraviolet (uv) curing cathodic color electrophoretic paint can avoid the above problems, the process is easier to control, reduce pollution, and the surface of the workpiece Full coverage of the coating is possible
The traditional electroplatable plastics are mainly ABS / ABS-PC / PC, and the electroplating colors are mainly monotonous and cool-toned metallic colors. The realization of colorization is by spraying, which is complicated to operate, low in finished products, and poor in economic benefits.

Method used

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  • Preparation method and film-painting method of LED ultraviolet curing colorful cathode electrophoretic paint color paste
  • Preparation method and film-painting method of LED ultraviolet curing colorful cathode electrophoretic paint color paste
  • Preparation method and film-painting method of LED ultraviolet curing colorful cathode electrophoretic paint color paste

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Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0053] The preparation of specific embodiment one uv color paste

[0054] (1) Preparation of color paste for LED UV-cured cathodic color electrophoretic paint

[0055] The color paste component distribution ratio is (weight ratio):

[0056]

[0057] Proceed as follows:

[0058] (1) Add uv resin, dispersant and co-solvent into the dispersion container, and stir evenly;

[0059] (2) Slowly add the pigment under stirring, and keep it for 2 hours after the addition;

[0060] (3), add defoamer and disperse for 30 minutes;

[0061] (4) Pump the dispersed slurry into a sand mill for grinding, and after grinding for 3 times, check the fineness and cleanliness with a scraper fineness meter, and discharge after the fineness is less than 2 μm.

[0062] (2) Preparation of color electrophoretic paint working solution

[0063] (1) Preparation of electrophoretic paint solution

[0064] Add self-made uv electrophoretic paint and pure water into the mixing container, the ratio is 1:6 ...

specific Embodiment 2

[0075] (1) Preparation of color paste for LED UV-cured cathodic color electrophoretic paint

[0076] The distribution ratio of uv color paste components is (weight ratio):

[0077]

[0078] Proceed as follows:

[0079] (1) Add uv resin, dispersant and co-solvent into the dispersion container, and mix well;

[0080] (2) Slowly add the pigment under stirring, and keep it for 2 hours after the addition;

[0081] (3), add defoamer and disperse for 30 minutes;

[0082] (4) Pump the dispersed slurry into a sand mill for grinding, and after grinding for 3 times, check the fineness and cleanliness with a scraper fineness meter, and discharge after the fineness is less than 2 μm.

[0083] (2), (3), (4), (5) steps are with specific embodiment one.

specific Embodiment 3

[0084] (1) Preparation of color paste for LED UV-cured cathodic color electrophoretic paint

[0085] The distribution ratio of uv color paste components is (weight ratio):

[0086]

[0087]

[0088] Proceed as follows:

[0089] (1) Add uv resin, dispersant and co-solvent into the dispersion container, and mix well;

[0090] (2) Slowly add the pigment under stirring, and keep it for 2 hours after the addition;

[0091] (3), add defoamer and disperse for 30 minutes;

[0092] (4) Pump the dispersed slurry into a sand mill for grinding, and after grinding for 3 times, check the fineness and cleanliness with a scraper fineness meter, and discharge after the fineness is less than 2 μm.

[0093] (2), (3), (4), (5) steps are with specific embodiment one.

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Abstract

The invention relates to the technical field of electrophoretic paint, in particular to a preparation method and a film-painting method of LED ultraviolet curing colorful cathode electrophoretic paintcolor paste. The preparation method of the LED ultraviolet curing colorful cathode electrophoretic paint color paste comprises the following steps that (1) self-made uv electrophoretic paint (ultraviolet curing cathode electrophoretic paint disclosed in the publication number CN107163664A), a dispersing agent and a co-solvent are added into a dispersion container and stirred uniformly; (2) pigment is slowly added while stirring is maintained, and still standing is conducted after adding; (3) a defoaming agent is added for dispersion; and (4) dispersed past is pumped into a sand mill to be ground. Meanwhile, the invention further provides the film-painting method of the electrophoretic paint color paste. A painted film manufactured through the film-painting method is good in physical and chemical performance, uniform in color and luster, good in brightness and high in reproducibility, and the colorful operability and the economic value of a plastic electroplated part are greatly improved.

Description

technical field [0001] The invention relates to the technical field of electrophoretic paint, in particular to a preparation method of LED ultraviolet light curing cathodic color electrophoretic paint color paste and a paint film method thereof. Background technique [0002] Most of the color paints used for plastic electroplating parts on automobiles are solvent-based spray paints. The coating process is to spray color paint on plastic electroplating parts. The spraying process will produce a large amount of volatile organic compound gas emissions, which will pollute the environment. The process is not easy to control, prone to chromatic aberration, uneven coverage on the surface of the workpiece, easy to have dead angles that cannot be completely sprayed and covered, and ultraviolet (uv) curing cathodic color electrophoretic paint can avoid the above problems, the process is easier to control, reduce pollution, and the surface of the workpiece Full coverage of the coating ...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/44
CPCC09D5/4465C09D5/4488
Inventor 王海栗沈芸刘凤华
Owner 深圳市天泽科技实业有限公司