SURFACE REFORMING METHOD FOR HARD COATING FILM, HARD COAT FILM OBTAINED THEREBY, OPTICAL FILM AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a surface reforming method of harding coat film, capable of performing treatment in a short time by a process which is superior in environmental and safety respects and is more simplified and capable of improving the adhesiveness between a hard coat film and a functional film, while suppressing deterioration, even when applying a coating liquid comprising a composition that is different from the composition of the hard coating film and forming the functional film on the hard coating film formed on a base material film.;SOLUTION: In the surface reforming method of the hard coating film 12, the surface of the hard coating film 12 is treated by ultraviolet rays, wherein oxygen concentration in an ultraviolet irradiation environment is 3 to 10% and integrated light amount of ultraviolet rays, directly under an ultraviolet ray lamp, is 800 to 2,000 mJ/cm².;COPYRIGHT: (C)2008,JPO&INPIT