| 摘要 |
Provided is a method for producing an optical film having a good visibility, which has a high productivity and can prevent the occurrence of interference fringes between a hard coat layer and a layer being in contact with the base material side of the hard coat layer. The method for producing an optical film is characterized by comprising: a step for preparing a light-transmitting base material; a step for preparing a first composition, which contains a first resin and a first solvent but contains no or 5.0 mass% or less, relative to the mass of the first resin, of a low-refractive index component and has a viscosity (µ1) of 3 mPa.s or above, and a second composition, which contains a low-refractive index component, a second resin and a second solvent and has a viscosity (µ2) of 5 mPa.s or above, provided that the difference between µ2 and µ1 is not more than 30 mPa.s; a step for simultaneously applying at least the first composition and the second composition to one face of the light-transmitting base material, the first and second compositions being adjacent each other from the base material side, to form a coating film; and a step for drying the coating film and then curing the same by light irradiation or heating, without precuring the coating film prior to the drying. |
