| 摘要 |
PROBLEM TO BE SOLVED: To improve adhesion of an dirt-proof, film to the surface of an antireflection film in a method for producing a functional film. SOLUTION: In order to produce a functional film 10, a film-forming step S1 is first carried out. In the step S1, an antireflection film 14 is formed continuously on the surface of a resin substrate 11 wound in to a roll shape, while allowing the substrate 11 to run in a hermetically sealed atmosphere, and the substrate 11 is rewound into a roll shape. An exposure step S2 is then carried out. In the step S2, the wound substrate 11 is rewound in an open atmosphere, and the surface of the formed antireflection film 14 is activated naturally by exposure to the air. A coating step S4 in which the activated surface of the antireflection film 14 is coated with a coating solution containing an dirt-proof material, and the coating solution is dried to form an dirt-proof film 15 is carried out. After the preparation of the coating solution and before the coating, an aging step S3 is carried out so that the reactivity of the coating solution is enhanced, and the fixation of the antifouling film 15 on the surface of the antireflection film 14 is promoted. |
