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Preparation method of black dye for aluminum alloy dyeing, aluminum alloy dyeing method

A technology of black dye and dyeing method, applied in the direction of organic dyes, electrolytic coatings, coatings, etc., can solve the problem of difficult aluminum alloy dyeing black and other problems

Active Publication Date: 2019-05-17
GUANGDONG EVERWIN PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, it is difficult to dye aluminum alloys black with traditional dyes

Method used

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  • Preparation method of black dye for aluminum alloy dyeing, aluminum alloy dyeing method
  • Preparation method of black dye for aluminum alloy dyeing, aluminum alloy dyeing method
  • Preparation method of black dye for aluminum alloy dyeing, aluminum alloy dyeing method

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preparation example Construction

[0024] see figure 1 , A method for preparing a black dye for aluminum alloy dyeing according to an embodiment includes the following steps S110-S130.

[0025] S110. Dissolving red and black dyes, blue-green dyes and red dyes in a solvent to obtain a mixed solution, wherein the concentration of the red and black dyes in the mixed solution is 1.0g / L-2.0g / L, and the blue-green dyes in the mixed solution The concentration of the red dye is 1.0g / L-1.5g / L, and the concentration of the red dye in the mixed solution is 0.5g / L-1.0g / L.

[0026] Red and black dyes, blue-green dyes and red dyes can be added according to the total volume of the black dye for aluminum alloy dyeing to be prepared to obtain a mixed solution. Specifically, the solvent of the black dye for aluminum alloy dyeing can be water.

[0027] In this embodiment, red and black dyes, blue-green dyes and red dyes are dissolved in water to obtain a mixed solution, wherein the concentration of red and black dyes in the mix...

Embodiment 1

[0052] Preparation of black dye for aluminum alloy dyeing

[0053] Dissolve Okuno dye 402, Okuno dye 411, and Okuno dye 102 in water to obtain a mixed solution, wherein the addition amount of Okuno dye 402 is 1.5g / L, the addition amount of Okuno dye 411 is 1.25g / L, and the addition of Okuno dye 102 The amount is 0.75g / L. NaOH was added to adjust the pH of the mixture to 5.25. And add 12.5g / L ammonium chloride into the mixed solution, and mix well to obtain a black dye for aluminum alloy dyeing.

Embodiment 2

[0055] Preparation of black dye for aluminum alloy dyeing

[0056] Okuno dye 402, Okuno dye 411, Okuno dye 102 are dissolved in water to obtain a mixed solution, the add-on of Okuno dye 402 is 1.0g / L, the add-on of Okuno dye 411 is 1.0g / L, and the add-on of Okuno dye 102 is 1.0g / L. NaOH was added to adjust the pH of the mixture to 5.0. Add 10 g / L of sodium acetate to the mixed solution to obtain a black dye for aluminum alloy dyeing.

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Abstract

A manufacturing method of a black dye for dyeing an aluminum alloy and an aluminum alloy dyeing method using the black dye are disclosed. The manufactured black dye comprises: 1.0-2.0 g / L of a red-black dye, 1.0-1.5 g / L of a blue-green dye, and 0.5-1.0 g / L of a red dye. The red-black dye, the blue-green dye, and the red dye are mixed according to the above composition, the pH thereof is adjusted to 5.0-5.5, and 10-15 g / L of a pH stabilizer is added. The resultant black dye is more suitable for dyeing an aluminum alloy than a conventional black dye and can easily dye the aluminum alloy to a black color. When used to dye an anodized aluminum alloy, the mixed black dye can easily dye the aluminum alloy to a stable and enduring black color.

Description

technical field [0001] The invention relates to the technical field of dyes, in particular to a method for preparing a black dye for aluminum alloy dyeing and a method for dyeing aluminum alloys. Background technique [0002] Most metals are substances with metallic luster, but except for gold and copper, other metals have only primary colors, which makes the colors of alloys formed by metals limited, and it is difficult to meet the diversified requirements for the colors of electronic products such as mobile phone casings, computer casings, and frames. . Among them, black is one of the important indicators to distinguish dyeing methods. At present, the most important black coloring methods in my country's manufacturing industry mainly include organic dyeing methods. Organic dyes are generally divided into water-soluble dyes and oil-soluble dyes, and most of the dyes used today are water-soluble organic dyes. [0003] However, it is difficult to dye aluminum alloy black wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C25D11/24C25D11/08C25D11/10
CPCC09B67/0033C09B67/0083C25D11/08C25D11/10C25D11/243
Inventor 王天宇周尤尚张波
Owner GUANGDONG EVERWIN PRECISION TECH
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