①Dyeing single color method: Immediately immerse the aluminum products after anodization and wash with water in the coloring solution at 40-60℃. Soaking time: 30 seconds-3 minutes for light colors; 3-10 minutes for dark colors and blacks. After dyeing, take it out and wash with clean water.
②Dyeing multi-color method: If two or more different colors are dyed on the same aluminum part, or when landscapes, flowers and birds, figures, and characters are printed, the procedures are very complicated, such as paint masking method, direct printing and dyeing method, foam plastic Dyeing method, etc. The above methods operate differently, but the principles are the same. Now the paint masking method is introduced as follows: This method is mainly to apply the quick-drying and easy-to-clean varnish thinly and evenly on the yellow that is really needed to mask it. After the paint film is dry, immerse the aluminum parts in dilute chromic acid solution to remove the yellow color of the unpainted part, take it out, rinse the acid solution with water, dry it at low temperature, and then dye it red. , Four colors can be operated according to the above method.
Close: After the dyed aluminum parts are washed with water, they are immediately put into distilled water of 90-100℃ and boiled for 30 minutes. After this treatment, the surface becomes uniform and non-porous, forming a dense oxide film. The dyes coated with the coloring are deposited in the oxide film and can no longer be wiped off. The oxide film after being closed is no longer adsorbable, and the wear resistance, temperature resistance and insulation properties are enhanced.
Dry the surface of the aluminum parts treated by closing, and then polish them with a soft cloth, you can get beautiful and beautiful aluminum products, such as dyeing multi-color, after the closing treatment, the protective agent applied on the aluminum parts should be removed. Small areas can be wiped off with cotton dipped in acetone, and large areas can be washed off by immersing the dyed aluminum parts in acetone.
Post time: Jun-13-2022