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Dye-fixing treatment agent and hole-sealing treatment method for anodic oxidation film of aluminum alloy

A technology of anodic oxidation film and treatment agent, applied in the direction of electrolytic coating, coating, surface reaction electrolytic coating, etc., can solve the problem of dyeing fixity reduction, achieve the effect of inhibiting decolorization and excellent dyeing fixation

Active Publication Date: 2022-04-26
OKUNO CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of decolorization caused by this sealing treatment, which reduces the fixability of dyeing.

Method used

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  • Dye-fixing treatment agent and hole-sealing treatment method for anodic oxidation film of aluminum alloy
  • Dye-fixing treatment agent and hole-sealing treatment method for anodic oxidation film of aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0143] The anodized-dyed test piece manufactured according to the above-mentioned manufacturing conditions was adjusted to pH 4 with nitric acid containing 1 g / L of manganese acetate, 1 g / L of sodium L-glutamate, and 0.5 g / L of naphthalenesulfonic acid formaldehyde condensate. 0.0 in a dye-fixing agent (bath temperature 75° C.) for 5 minutes, washed with water, and dye-fixed. Next, immerse for 20 minutes in a sealing solution (bath temperature 95°C) consisting of an aqueous solution of pH 5.7 containing 20 ml / L TOP SEAL NIF manufactured by Okuno Pharmaceutical Co., Ltd., wash with water, and dry to seal the pores. deal with.

Embodiment 2～7

[0145] Except for changing the treatment conditions as shown in Tables 1 and 2, the same procedure as in Example 1 was carried out, and dyeing treatment, dyeing fixation treatment and sealing treatment were performed.

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Abstract

The present invention provides a dyeing fixation means and a sealing treatment method capable of suppressing decolorization and improving the fixability of dyeing even when sealing treatment is performed on an anodized film of an aluminum alloy after dyeing treatment. The present invention provides a dye-fixing treatment agent for an anodic oxidation film of an aluminum alloy, which is characterized in that it contains a manganese salt and has a pH of 5.0 or less.

Description

technical field [0001] The invention relates to a dye fixing treatment agent for anodic oxidation film of aluminum alloy and a hole sealing treatment method. Background technique [0002] The anodized film of aluminum alloy is generally subjected to a sealing treatment in order to achieve antifouling, improve corrosion resistance, and the like. As the sealing treatment method, boiling water sealing, water vapor sealing, room temperature sealing, nickel acetate sealing in which a nickel acetate aqueous solution is used for sealing, and the like are known. [0003] Among them, nickel acetate sealing is especially popular because it is easier to obtain the corrosion resistance of the film than sealing with boiling water, it is more efficient than sealing with water vapor, and it is easier to manage liquid than sealing at room temperature. use. [0004] However, in recent years, nickel allergies and the toxicity of finely powdered nickel salts have become a problem, and it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/18C25D11/24
CPCC25D11/18C25D11/24
Inventor 原健二森口朋杉冈骏
Owner OKUNO CHEM IND CO LTD
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