Titanium oxide coating film forming method

PROBLEM TO BE SOLVED: To provide a coating agent which is capable of forming a coating film simply and over a wide area, and is capable of forming a microfilm having an excellent chemical stability and physical stability, the coating film, a forming method, and to provide various products each applied with the coating film. SOLUTION: The coating agent comprises a scaly titanium oxide microparticle obtained by ion exchange-treating a layered titanate with an alkylammonium, and the coating agent comprises a solution containing titania nano-sheet and a silicon dioxide, or sol of titanium oxide. The coating film has a micro structure laminating the scaly titanium oxide microparticles with high orientation, wherein the scaly titanium oxide microparticle is formed by drying and heating after coating. COPYRIGHT: (C)2006,JPO&NCIPI