Method for the anodic treatment, coloring and/or decoration and electrostatic painting of items made of aluminum and alloys thereof

摘要

A new technological method for subjecting any item made of aluminum or aluminum alloy to an anodizing treatment followed by treatments for coloring, decoration and electrostatic painting. The method allows to directly perform the finishing coat, i.e., to avoid the primer coat, since during the sublimation of the decorations and during painting higher bonding coefficients are achieved than that observable with any other conventional method. For this purpose, the items are subjected to a galvanic anodizing treatment which however does not include the fixing step in order to prevent the pores of the oxidized layer from closing due to hydration and swelling of the oxide, hindering the bonding of any paint or decoration applied subsequently.