1. The temperature of the dyeing solution.

The dyeing of 5A02 aluminum plate products is divided into cold dyeing and hot dyeing. Cold dyeing is used for a long time in the production process and has a better grasp of color uniformity. Heat dyeing is shorter in use, but it is difficult to manipulate the color. Heat dyeing temperature is generally 40 ℃ 60 ℃. If the temperature is too high, the adsorption of dyeing will be reduced, and the surface of 5A02 aluminum plate products will easily bloom.

2. The influence of oxide film on the quality of aluminum veneer.

The oxide film refers to the thickness, porosity, transparency, etc. of the aluminum veneer. The thickness of oxide film in 5A02 aluminum plate products can be kept above 10 microns, porosity and transparency can be obtained, and the best dyeing quality can be obtained.

3. Concentration of dyeing solution.​​

The concentration of the dyeing solution is related to the dyeing. After 5A02 aluminum plate products are colored, the concentration is lower, and the dark color concentration is slightly higher. If the dye concentration is high, it will produce uneven color or floating color, which is easy to appear during the process of washing and closing "flow color". In order to improve the adsorption capacity of dyes to dyes, a low concentration of color is used to prolong the dyeing, so that the dye molecules penetrate more evenly into the depth of the pores of the oxide film, so that the color is more harmonious and firm.