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Anodic aluminum level dyeing retarding aid and operating liquid thereof as well as anodic aluminum level dyeing retarding treatment process

A treatment process, anodized aluminum technology, applied in the direction of electrolytic coating, surface reaction electrolytic coating, coating, etc., can solve the problems of local color difference surface and fading of anodized aluminum, and achieve easier control of dyeing process and good mechanical strength Effect

Active Publication Date: 2015-05-27
RAMBO NANOTECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the first aspect of the embodiment of the present invention provides an anodized aluminum leveling and retarding dyeing auxiliary agent, which is used to solve the problem that in the prior art, anodized aluminum is prone to local color difference or surface blooming during the dyeing process, and it is difficult to In the case of taking into account the good mechanical and chemical properties of the anodized film, the problem of light color dyeing and finishing without color difference is smoothly realized

Method used

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  • Anodic aluminum level dyeing retarding aid and operating liquid thereof as well as anodic aluminum level dyeing retarding treatment process
  • Anodic aluminum level dyeing retarding aid and operating liquid thereof as well as anodic aluminum level dyeing retarding treatment process
  • Anodic aluminum level dyeing retarding aid and operating liquid thereof as well as anodic aluminum level dyeing retarding treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An anode aluminum leveling and slowing dyeing auxiliary agent, its preparation method is as follows:

[0054] Mix 100g of sodium citrate, 450g of sulfamic acid and 450g of pH stabilizer evenly to prepare 1kg of anode aluminum leveling and retarding auxiliary powder.

Embodiment 2

[0056] An anode aluminum leveling and retarding dyeing auxiliaries operating liquid, its preparation method is as follows:

[0057] The anode aluminum leveling and retarding auxiliary agent powder prepared in the above-mentioned embodiment 1 was added into deionized water, and the concentrations were prepared to be 0.5g / L, 1.5g / L, 3g / L and 6g / L (based on the first active Concentration meter of component sodium citrate) anodic aluminum leveling and retarding auxiliary agent operating liquid.

Embodiment 3

[0059] A kind of anodic aluminum level dyeing slow dyeing treatment process, comprises the following steps:

[0060] (1) Take four aluminum material test pieces whose model is 5052, after anodizing and water washing, respectively soak in the anodic aluminum leveling and retarding auxiliary agent operating solution (25°C) of different concentrations prepared in Example 2 of the present invention 5 minutes, take it out and clean it with deionized water; among them, the anodic oxidation time of the aluminum test piece is 20 minutes, and the thickness of the oxide film is ~15μm;

[0061] (2) Then put the aluminum flakes treated with different concentrations of anodic aluminum leveling and retarding dyeing auxiliaries into the dyeing solution for dyeing. The selected dye is the black dye "TAC Black SLH415AN" produced by Okuno Company in Japan. 10g / L, the temperature of the dye vat is controlled at 25°C, dye for 5 minutes, and then take it out for cleaning;

[0062] (3) Finally, th...

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Abstract

The invention provides an anodic aluminum level dyeing retarding aid. The anodic aluminum level dyeing retarding aid comprises a first active ingredient, a second active ingredient and an auxiliary additive; the first active ingredient comprises one or more of compounds containing a carboxylic acid group, carboxylates, substituted carboxylates, carboxylic acid anhydride, amino acid salts and amino acid anhydride; the second active ingredient comprises a compound containing a sulfonic acid group and / or a sulfonate; and the auxiliary additive comprises one or more of a pH stabilizer, an anti-caking agent and an anti-scaling agent. The aid has an excellent level dyeing retarding effect, and is capable of solving the problem of easy local chromatic aberration or surface floating in the dyeing step of anodized aluminum in the prior art and smoothly realizing chromatic aberration-free undertint dyeing and finishing under the circumstance of keeping excellent mechanical and chemical properties of an anodized film. The invention also provides an anodic aluminum level dyeing retarding aid operating liquid based on the aid, and an anodic aluminum level dyeing retarding treatment process.

Description

technical field [0001] The invention relates to an anode aluminum dyeing process, in particular to an anode aluminum leveling and slowing dyeing auxiliary agent and its operating liquid, and an anodic aluminum leveling and slowing dyeing treatment process. Background technique [0002] In addition to the characteristics of light texture, high hardness, good wear resistance and corrosion resistance, anodized aluminum can also be dyed and colored after anodizing to obtain a rich and colorful surface in order to obtain better decorative functions. Appearance. In this way, anodized aluminum has become one of the most widely used substrates in electronic products such as smartphones and tablet computers. [0003] In production, poor dyeing often occurs. In the whole process of oxidation dyeing of aluminum, in addition to the reason of oxidation process that will cause poor dyeing, its cause is also related to the unstable pre-dyeing process. After anodized aluminum products, t...

Claims

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Application Information

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IPC IPC(8): C25D11/14
CPCC25D11/14
Inventor 郭振华郭艳华仇荣宗张骅
Owner RAMBO NANOTECH SHENZHEN
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