| 摘要 |
[Problem] To obtain an optical reflective film having both productivity and optical characteristic which achieve the lower production cost, larger area, and reduced unevenness in the reflectivity of visible light regions. [Solution] An optical reflective film contains a water-soluble polymer and metal oxide particles in a high refractive index layer and/or a low refractive index layer, and has at least one unit in which the high refractive index layers and the low refractive index layers are alternately laminated on a film support. The optical reflective film is provided with a mixed region of the high refractive index layer and the low refractive index layer between the high refractive index layer and the low refractive index layer by simultaneously applying the high refractive index layer and the low refractive index layer in a double-layered manner, and has a region with a mean reflectivity of 30-100% inclusive in at least one region among visible light wavelength regions. |
