| abstract |
An object of the present invention is to provide an article capable of maintaining a good appearance over a long period of time while maintaining the antireflection performance of a silica-based porous film and improving the antifouling property, and a method for producing the same. An article having a multilayer porous film comprising a silica-based porous film and an outermost layer provided in contact with the silica-based porous film on a transparent substrate, wherein the multilayer film has a wavelength of 550 nm. Water contact after the refractive index is 1.428 or less, the initial water contact angle of the outermost layer is 80 ° or more, and light having a wavelength of 300 to 800 nm is exposed at an irradiance of 650 W / m 2 for 1000 hours. An article having an angle of 76 ° or less. [Selection figure] None |