PROCESS FOR PRODUCTION OF FLAKES

摘要

The invention relates to a process for the production of flakes by peeling a coating film from a substrate and aims at improving the peelability of a coating film from a substrate. The invention provides a process which comprises mixing a hydrolyzable metal compound, an acid catalyst, water and an organic solvent to prepare a sol solution containing a metal oxide precursor, applying the sol solution to a substrate to form a coating on the substrate, drying the coating to form a film, and peeling the film from the substrate to form flakes. According to the invention, the sol solution further contains both an organic compound for imparting a function to flakes and an alkali metal salt and/or an alkaline earth metal salt, when applied to a substrate.