Surface spray dyeing method for aluminum or aluminum-alloy product

An aluminum alloy and product technology, which is applied to the surface spray dyeing method of aluminum and aluminum alloy products, and the field of aluminum and aluminum alloy products, spray dyeing ink, and can solve the problems of easy falling off, single color, and inability to make colors.

Active Publication Date: 2012-04-11
祥兴泰五金制品(江门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in terms of surface treatment of aluminum and aluminum alloys, methods such as spraying, transfer printing, and dip-dyeing can be used, among which spraying and transfer printing can make various patterns to achieve an ideal decorative effect, but whether it is spraying or transfer printing Printing, the products made will have a certain thickness of coating on the surface, the coating is easy to fade, and it is easy to fall off when it comes in contact with organic solvents; dip-dyeing is to anodize aluminum and aluminum alloys, and then oxidize the product Immerse in the dye for dyeing treatment. After the color meets the relevant requirements, take it out, and then seal the pores so that the dye molecules stay in the pores of the oxide film layer, thereby producing a certain color, but it is produced by the method of dip dyeing. The color of the product is single, and it is impossible to make a colorful pattern effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The surface spraying method of aluminum or aluminum alloy products comprises the following steps:

[0053] 1) Grinding and polishing the aluminum or aluminum alloy products with a cloth wheel or nylon wheel to remove sand holes, sharp edges, etc., so that the surface of the product can achieve a bright effect.

[0054] 2) Degrease the polished aluminum or aluminum alloy products with ultrasonic waves and degreasing water for 10-20 minutes.

[0055] 3) Put the degreased aluminum or aluminum alloy products into the chemical polishing solution with a volume concentration of 10% for chemical polishing for 10-30 seconds.

[0056] 4) Put the chemically polished aluminum or aluminum alloy products into a sulfuric acid oxidation bath with a concentration of 20% for anodic oxidation treatment, and the time is 0.5-2 hours.

[0057] 5) The anodized aluminum or aluminum alloy products are sprayed and dyed with flat printing equipment or 3D inkjet equipment with a nozzle diameter o...

Embodiment 2

[0061] A spray dyeing ink specially used for the surface spray dyeing method of aluminum and aluminum alloy products in any of the above embodiments, including acid dyes, glycerin, ethanol and deionized water, and the spray dyeing ink is selected from the following groups: At least one, where percentages are volume percentages:

[0062] a) Cyan: 5% acid blue, 2% glycerin, 5% ethanol and 88% deionized water;

[0063] b) Red: 3% acid red, 2% glycerin, 5% ethanol and 90% deionized water;

[0064] c) Yellow: 10% acid yellow, 2% glycerin, 5% ethanol and 83% deionized water;

[0065] d) Black: 15% acid black, 2% glycerin, 5% ethanol and 78% deionized water.

[0066] The pore diameter of the dye molecules in the above scheme is smaller than the pore diameter of the formed oxide film. When spraying, the dye molecules are more likely to enter the pores. The viscosity of the existing dye liquid is very small. If no glycerin is added, the viscosity < 1 CP, and the above content of gly...

Embodiment 3

[0069] An aluminum and aluminum alloy product, obtained by the method of any one of the above embodiments, includes an aluminum or aluminum alloy product body, and a color and / or pattern integrated with the surface of the aluminum or aluminum alloy product body. The product produced by the above method does not produce any thick color layer on the surface of the product, but only the oxide film layer on the surface forms a pattern or color.

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PUM

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Abstract

The invention discloses a surface spray dyeing method for an aluminum or aluminum-alloy product, the aluminum or aluminum-alloy product and spray dyeing ink. The surface spray dyeing method comprises the following steps of: 1) pre-treating, namely polishing the aluminum or aluminum-alloy product, removing oil and performing chemical polishing; 2) performing anode oxidation, namely performing anode oxidation treatment on the pretreated aluminum or aluminum-alloy product to form a porous oxidation film on the surface; 3) performing surface spray dyeing, namely spraying the spray dyeing ink ontothe surface of the aluminum or aluminum-alloy product obtained through anode oxidation by using planar printing equipment and/or three-dimensional (3D) spraying equipment to form color and/or patterns; 4) cleaning, namely cleaning the spray dyeing ink which remains outside holes of the oxidation film on the aluminum or aluminum-alloy product obtained through surface spray dyeing; and 5) sealing ahole, namely performing hole sealing of the cleaned aluminum or aluminum-alloy product. By the surface spray dyeing method, colored and vivid patterns can be produced on the surface of the aluminum or aluminum-alloy product, a coating cannot be formed on the surface, and the aluminum or aluminum-alloy is difficult to fade after long-term use.

Description

technical field [0001] The invention relates to the processing field of metal materials, in particular to a method for spraying and dyeing the surface of aluminum and aluminum alloy products, aluminum and aluminum alloy products, and spray dyeing ink. Background technique [0002] At present, in terms of surface treatment of aluminum and aluminum alloys, methods such as spraying, transfer printing, and dip-dyeing can be used, among which spraying and transfer printing can make various patterns to achieve an ideal decorative effect, but whether it is spraying or transfer printing Printing, the products made will have a certain thickness of coating on the surface, the coating is easy to fade, and it is easy to fall off when it comes in contact with organic solvents; dip-dyeing is to anodize aluminum and aluminum alloys, and then oxidize the product Immerse in the dye for dyeing treatment. After the color meets the relevant requirements, take it out, and then seal the pores so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/28B41J2/01
Inventor 赖泱祥
Owner 祥兴泰五金制品(江门)有限公司
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