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Photochromic staining solution suitable for anodic oxidation technology and staining technique

A photochromic and anodic oxidation technology, which is applied in the field of dyeing liquid formulation and dyeing process, can solve the problems of inability to produce photochromic effect, and achieve the effect of wide application market, good performance and excellent gas barrier

Pending Publication Date: 2018-08-14
TIANJIN UVOS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that a single photochromic dye cannot produce a photochromic effect when entering the anodic oxidation film layer, and to provide a method of encapsulating light stabilizers, antioxidants, photochromic dyes and polymer materials into the anodic oxidation layer. The dyeing process of the oxide film layer ensures that the material has a discolored surface while retaining its unique texture

Method used

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  • Photochromic staining solution suitable for anodic oxidation technology and staining technique
  • Photochromic staining solution suitable for anodic oxidation technology and staining technique
  • Photochromic staining solution suitable for anodic oxidation technology and staining technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] A photochromic dye solution suitable for anodizing technology, comprising the following components by weight:

[0110]

[0111] The preparation method of described photochromic dyeing solution is:

[0112] Add novolac resin to propyl acetate according to parts by weight, stir and dissolve at 70°C to form a slightly viscous liquid, then add photochromic dye, light stabilizer and antioxidant in sequence according to parts by weight, and heat to 90-95°C , stirring and dissolving into a colored mixed liquid is the dyeing slurry.

[0113] The anodic oxidation dyeing process is as follows:

[0114] 1. Sample preprocessing:

[0115] In this embodiment, the aluminum sheet is selected as the sample, and the unsealed anodized aluminum sheet to be dyed is soaked in 10% sulfuric acid aqueous solution for several minutes. After taking it out, it is ultrasonically cleaned with distilled water and dried.

[0116] 2. Dyeing:

[0117] Take an appropriate amount of dyeing slurry i...

Embodiment 2

[0124] Select an aluminum sheet with the same oxide film thickness of 20 μ, use the technical scheme of Example 1, use the same temperature, time and assist ultrasonic dispersion dyeing, apply different voltages and times to seal the holes after dyeing, and use the same organic solvent to seal the holes. After cleaning, the experimental data obtained are as follows:

[0125]

[0126]

[0127] The above comparative test data show that the longer the sealing time, the better the sealing effect, and the higher the sealing voltage, the better the effect. The reason is: because the polymer material introduces the oxide film layer, which reduces the conductivity of the metal sample, the sealing voltage needs to be slightly higher, preferably 10-50% of the conventional process, and the use of a higher sealing voltage can shorten the Sealing time.

Embodiment 3

[0129] A photochromic dyeing solution suitable for anodic oxidation dyeing process, comprising the following components by weight:

[0130]

[0131] The preparation method of described photochromic dyeing solution is:

[0132] Add linear polyacrylic resin to butyl acetate according to parts by weight, stir and dissolve at 80°C to form a transparent liquid, then add photochromic dye, light stabilizer and antioxidant according to parts by weight, heat to 90-95°C, stir The mixed liquid that dissolves into color is the dyeing slurry.

[0133] The anodic oxidation dyeing process is as follows:

[0134] 1. Sample preprocessing:

[0135] The samples in this example are made of stainless steel sheets, and the unsealed anodized stainless steel sheets to be dyed, with different surface textures, are soaked in 5% sulfuric acid aqueous solution for several minutes, taken out, ultrasonically cleaned with distilled water, and dried;

[0136] 2. Dyeing:

[0137] Take an appropriate am...

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Abstract

The invention provides a photochromic staining solution suitable for an anodic oxidation technology, and provides a preparation method and a staining technique of the staining solution. The photochromic staining solution comprises following components of, by weight, 10-30 parts of organic solvents, 0.5-1.5 parts of photochromic dye, 1-2 parts of light stabilizers, 1-2 parts of antioxidants, and 2-8 parts of polymer materials. During staining, the staining solution is subjected to ultrasonic dispersion for several minutes, a certain negative pressure state is maintained, thus presentation of the staining effect is facilitated, meanwhile, the hole sealing voltage is increased by 10%-50%, and the photochromic oxidation film layer surface with excellent chroma is also advantageously obtained.The staining solution and the technique are applied to various oxidation film layers containing porous structures, thus the evenly stained material surface with the obvious color changing effect, goodweather resistance, good abrasion resistance and good color fixation is obtained, and the special sandblasting or drawing texture of the material surface can further be reserved.

Description

technical field [0001] The invention relates to the application of photochromic materials in anodic oxidation, in particular to a dyeing solution formula and a dyeing process. Background technique [0002] Nowadays, the shells of many products are made of colored alloy materials, such as two-color car wheels, colored metal mobile phone cases, etc. On the basis of ensuring high strength, good heat dissipation, and good metal texture, the introduction of color increases the aesthetics of the product. This type of color is usually achieved through surface treatment, and anodic oxidation technology is currently the most widely used and most successful surface treatment technology. By using artificial methods, a thicker layer of oxidation is formed on the surface of magnesium / aluminum / stainless steel and its alloy products. The film is hundreds of times and thousands of times thicker than the oxide film under natural conditions. The thickness of the hard anodic oxide film can re...

Claims

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Application Information

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IPC IPC(8): C25D11/24
CPCC25D11/243C25D11/246
Inventor 吴边鹏孟继本张丽鑫边俊民
Owner TIANJIN UVOS TECH CO LTD
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