Four ways to solve the dyeing problem of embossed aluminum coil

Because of its excellent characteristics such as decoration and durability, the embossed aluminum coil is widely accepted by the public. However, there are some dyeing problems of the pattern aluminum coil in the production process, which cannot achieve the desired effect of the manufacturer. In order to solve this problem, share four ways to solve the problem of dyeing aluminum coil:

First, choose a good aluminum coil metal parts. Usually, the high-purity aluminum, aluminum-magnesium, and aluminum-manganese alloys in the production process are anodized, and the dyeing function is good, and can be dyed into various colors. For plates with relatively heavy silicon or copper, only dark and black can be dyed during the dyeing process, which is more monotonous.

Second, control the thickness of the oxide film. The oxide film refers to the thickness, porosity, transparency, and the like of the aluminum film layer. The thickness of the film layer in the checker aluminum coil can be kept above 10 um, and the porosity and transparency can obtain better dyeing quality.

Third, grasp the concentration of the dye solution. There is a relationship between the concentration of the aluminum coil and the dyeing. If the aluminum coil is lightly colored, the concentration can be lower, and the concentration of the dark color can be higher. In order to enhance the adsorption of dyeing, the dyeing is carried out using a low concentration of color, so that the dye molecules can penetrate into the pores of the oxide film more uniformly, which makes the dyed color more harmonious and firm.

Fourth, control the temperature of the dyeing solution. The dyeing of tread aluminum coils is divided into cold dyeing and hot dyeing. The use of cold dyeing in the production process is relatively long, the dyed color uniformity is better. The time spent on thermal dyeing is relatively short, but the manipulation of color is more difficult. The temperature of the thermal dyeing is usually between 40 and 60 °C. If the temperature is too high, the adsorption of the dye is reduced, and the surface of the aluminum coil is easily embossed.