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Environment-friendly single-tin salt coloring agent and preparation method thereof

A colorant, environmentally friendly technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problem of single tin salt colorants not being environmentally friendly, and achieve good coloring stability, good cleanliness, and good weather resistance. Effect

Pending Publication Date: 2021-02-23
刘岳峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The primary purpose of the present invention is to provide a single-tin salt coloring agent for environmental protection, to solve the problem that the existing single-tin salt coloring agent is not environmentally friendly

Method used

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  • Environment-friendly single-tin salt coloring agent and preparation method thereof
  • Environment-friendly single-tin salt coloring agent and preparation method thereof
  • Environment-friendly single-tin salt coloring agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6

[0026] Embodiment 6 analyzes the coloring speed of the coloring agent of table 1

[0027] The coloring speed analysis of embodiment 1-5 and comparative example 1-6, the results are shown in Table 2

[0028] The coloring speed analysis of table 2 embodiment 1-5 and comparative example 1-6

[0029]

[0030] The results show that the coloring speed of Examples 1-5 is relatively faster than that of Comparative Examples 1-5, and the coloring speed of the colorant in Example 1 is the fastest.

Embodiment 7

[0031] Embodiment 7 is to the cleanliness analysis of the bath liquid of the coloring agent of table 1

[0032] The cleanliness analysis of the tank solution of the colorant of embodiment 1-5 and comparative example 1-6, the results are shown in Table 3

[0033] The cleanliness analysis of the bath liquid of table 3 embodiment 1-5 and comparative example 1-6

[0034]

[0035]

[0036] The results show that the cleanliness of the tank solutions of the colorants in Examples 1-5 is better than that of Comparative Examples 1-3, and the cleanliness of the tank solutions in Examples 1, 3 and 5 is the best.

Embodiment 8

[0037] Embodiment 8 is to the stability analysis of the tank liquor of table 1

[0038] The stability analysis of the tank solution of embodiment 1-5 and comparative example 1-6, the results are shown in Table 4

[0039] The stability analysis of the tank solution of table 4 embodiment 1-5 and comparative example 1-6

[0040]

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PUM

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Abstract

The invention discloses an environment-friendly single-tin salt coloring agent, and belongs to the technical field of electrolytic coloring additives. The agent is mainly prepared from the componentsincluding, by weight, 18-22 parts of tartaric acid, 16.2-19.8 parts of citric acid monohydrate, 31.5-38.5 parts of malic acid and 24.3-29.7 parts of sulfamic acid. The invention further discloses a preparation method of the single-tin salt coloring agent. The method comprises the following steps that the tartaric acid, the citric acid monohydrate, the malic acid and the sulfamic acid are mixed according to the parts by weight and are uniformly mixed. The environment-friendly single-tin salt coloring agent is applied to a single-tin salt dot dissolving tank, and the coloring effect is good; thecleanliness of a bath solution is good; the single-tin salt coloring agent is good in coloring stability, good in weather resistance and high in impurity resistance, and the problem that an existingsingle-tin salt coloring agent is not environmentally friendly can be solved.

Description

technical field [0001] The invention relates to the technical field of electrolytic coloring additives, in particular to a monotin salt environmental-friendly colorant and a preparation method thereof. Background technique [0002] Electrolytic coloring is a commonly used process in anodic oxidation surface treatment of aluminum alloys. In the current market, those skilled in the art often use double-salt coloring additives, namely the system of nickel sulfate plus stannous sulfate. In this system, nickel sulfate has excellent electrical conductivity and current dispersion, and is an essential material for electrolytic coloring process. But along with my country's emphasis on environmental protection, nickel salt has been banned or restricted as heavy metal in this technical field. Therefore, it has become the goal of the next step in this technical field to develop a mono-tin salt system (without nickel sulfate) with stable quality, low cost and environmental protection. ...

Claims

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Application Information

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IPC IPC(8): C25D11/22
CPCC25D11/22
Inventor 刘岳峰
Owner 刘岳峰
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