How to distinguish between alumina and electrolytic coloring dye?
Anodizing staining is the use of a porous oxide film with a variety of chemically active adsorption coloring pigment leaving the oxide film, based on the coloring mechanism and process can be divided into organic dye coloring, an inorganic dye coloring, paste color printing, color printing and dyeing Consumers color dyeing. The resulting single uniform color.
1.2 Classification of electrolytic coloring method
Electrolytic Coloring electrolyte composition according to their different nature and different process implementation methods, can be divided into the following types:
a. Single metal colored liquid b. Multi-colored liquid metal c. two kinds of colored liquids in a row Coloring d. Tripod three sections coloring
Electrolytic coloring nickel salt and stannous salts readily deposited on the bottom of the oxide film hole, while copper and zinc was easily deposited on the surface of the hole.
Electrolytic coloring concepts:
Refers to the so-called electrolytic coloring of aluminum and its cojin after anodizing, the electrolytic exchange in an aqueous solution containing a metal salt, the metal in the bottom of the electrodeposition layer of the porous anodized film, a metal oxide or a metal compound, electrodeposition due to Light the scattering and showed a variety of colors, this coloring method called electrolytic coloring or secondary electrolytic coloring method.
