METHOD FOR COLORING BASE BODY SURFACE OF METAL AND INORGANIC MATERIAL

摘要

PURPOSE:To color inexpensively and easily a base body surface consisting of a metal or inorg. material by sticking a liquid mixture composed of an org. metallic compd. of titanium and cerium compd. to the base body surface and heating the base body to an adequate temp. CONSTITUTION:The org. compd. of titanium such as titanium alkoxide and the cerium compd. such as cerium chloride are made into a soln. by using a solvent such as methanol and the soln. is coated on the surface of the base body which consists of the metal or inorg. material and withstands at least >=200 deg.C. The above-mentioned org. metallic compd. of titanium and cerium compd. are preferably mixed at 1:1-250:1 by weight in terms of TiO2 and CeO2 respectively. The base body after coating of the above-mentioned liquid mixture is heated to >=200 deg.C- the temp. below the temp. at which the deformation or deterioration of the base body arises to form the oxide film of the cerium-contg. titanium oxide. The film thickness is controlled to color the surface of the base body to yellow-golden colors of various densities.