PURPOSE: To improve absorptivity for UV rays, scratching resistance, wear resistance, durability and chemical resistance by forming an inorg. UV-absorbing film on the surface of a transparent base body and further covering this film with a polysilazane mixture film.

CONSTITUTION: A soln. for an UV-absorbing film of 1-20wt.% concn. is prepared by dissolving metallic soap zinc or cerium alkoxide compd. and 0.1-6wt.% oxide such as SiO2 and TiO2 in a diluting solvent. The obtd. soln. is applied on the surface of a transparent base body at 15-25°C and 40-50RH% and dried by heating at ≥150°C for about 15min to obtain a UV-absorbing film comprising zinc oxide or cerium oxide film of 0.01-1.5μm thickness. Then a soln. containing 5-40wt.% polysilazane mixture is applied on the surface of the UV-absorbing film at 20-50RH% and dried and cured by heating at 100-400°C for 10-90min to obtain a polysilazane mixture film having 0.1-3μm thickness.