A pigment dispersion composition for filling and coloring an aluminum or aluminum alloy oxide film, a filling coloring method using the same, and an aluminum or aluminum alloy material colored by the filling coloring method

摘要

A pigment dispersant, a water-soluble organic solvent and water, and is a pigment dispersion composition for filling an aluminum or aluminum alloy oxide film containing water-soluble amines and / or their derivatives. The pigment particles are filled up to the pores of the aluminum film to form a clear film having good weather resistance and can be repeatedly colored and the pigment which is deposited on the surfaces other than the coating pores during electrophoresis can be cleaned, Can be removed.