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Anodic oxide film dyeing stabilizer and anodic oxide film dyeing method

A technology of anodized film and dyeing method, applied in the field of anodized film dyeing stabilizer and anodized film dyeing, can solve the problems of affecting the use function and effect, single additive function, loss of dyeing function, etc., to achieve stable pH value, reduce The effect of management difficulty and short answer

Pending Publication Date: 2022-04-19
广东东明新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mild mildew will cause plaque to adsorb on the surface of the aluminum alloy workpiece to form abnormal dirt. Severe mildew will directly cause the dyeing solution to be scrapped and lose its dyeing function.
[0005] The traditional approach is to overcome the above three risk items by adding corresponding additives. However, due to the complexity of market product types and the single function of additives, it is impossible to overcome the above three risks at the same time. Generally, it is necessary to add multiple additives at the same time. may interfere with each other using features and effects

Method used

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  • Anodic oxide film dyeing stabilizer and anodic oxide film dyeing method
  • Anodic oxide film dyeing stabilizer and anodic oxide film dyeing method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] S1: Use 220-mesh glass beads to sandblast the aluminum alloy workpiece, and then chemically polish it to control the surface gloss of the aluminum alloy to 60 Keles;

[0038] S2: Anodizing the pretreated aluminum alloy workpiece in a 20% sulfuric acid solution to form a 10 μm oxide film on the surface of the aluminum alloy workpiece;

[0039]S3: The anodized aluminum alloy workpiece is dyed in a dyeing solution containing 0.5g / L Okuno 102 dyeing agent and 5mL / L anodized film dyeing stabilizer. The dyeing condition is soaking at 33°C for 200s ;

[0040] Wherein the anodized film dyeing stabilizer includes the following components: 100g / L pH buffer (acetic acid / sodium acetate system, wherein the mass ratio of acetic acid to sodium acetate is 1.8:10), 15g / L Pingping plus O-25, 10g / L L sodium dodecyl sulfonate, 15g / L sodium diacetate, water as solvent.

[0041] S4: The dyed aluminum alloy workpiece is sealed in a sealing solution. The sealing agent is Okuno's DX-500 high-...

Embodiment 2

[0044] The difference with Example 1 is that wherein the anodized film dyeing stabilizer comprises the following components: 120g / LpH buffer (acetic acid / sodium acetate system, wherein the mass ratio of acetic acid to sodium acetate is 1.8:10), 12g / L pH buffer Add O-25, 12g / L sodium dodecylsulfonate, 20g / L sodium diacetate, and use water as the solvent.

Embodiment 3

[0046] The difference with Example 1 is that wherein the anodized film dyeing stabilizer comprises the following components: 130g / LpH buffer (acetic acid / sodium acetate system, wherein the mass ratio of acetic acid to sodium acetate is 1.8:10), 8g / L flat Add O-25, 15g / L sodium dodecylsulfonate, 25g / L sodium diacetate, and use water as the solvent.

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Abstract

The invention discloses an anodic oxide film dyeing stabilizer and an anodic oxide film dyeing method.The anodic oxide film dyeing stabilizer comprises 80-150 g / L of a pH value buffering agent, 0.1-80 g / L of a mildew preventive, 10-200 g / L of a dye leveler and the balance water, the pH value buffering agent, the mildew preventive and the dye leveler are compounded for use, and under the specific proportion and dosage, the pH value buffering agent, the mildew preventive and the dye leveler act synergistically, so that the dyeing effect of the anodic oxide film is improved. The anodic oxide film dyeing stabilizer has a uniform dyeing function, a stable pH value and an anti-mildew function at the same time, fills the market blank, is convenient to use, reduces the management difficulty of dye liquor of a production line, improves the anodic oxide film dyeing efficiency, and reduces the reject ratio of uneven dyeing on the surface of a workpiece.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an anodic oxide film dyeing stabilizer and an anodic oxide film dyeing method. Background technique [0002] Aluminum alloy anodizing process is one of the commonly used surface treatment methods for aluminum alloy products. Use the aluminum alloy workpiece to anodically treat the surface of the aluminum product in dilute sulfuric acid solution to form an oxide film layer. The thickness of the film layer ranges from several microns to hundreds of microns, and the pore diameter of the film layer is about 30-70 nanometers. High wear resistance, insulation and other protective functions; at the same time, the film layer has relatively strong activity, can absorb dyes, and obtain a colorful decorative appearance. It is widely used in the fields of cosmetic packaging, electronics, digital product casings, automotive accessories, etc. . [0003] However, due to proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/14C25D11/06
CPCC25D11/14C25D11/06
Inventor 高健熊豪况金权
Owner 广东东明新材科技有限公司
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