METHOD FOR PRODUCING TRANSPARENT FILM

摘要

PROBLEM TO BE SOLVED: To efficiently and continuously produce a thin transparent film having high heat resistant and superior homogenous quality, the film which is manufactured from a photocurable resin.

SOLUTION: There is provided a method for producing the transparent film by flow casting of a liquid photocurable resin composition on a transparent base film; laminating the transparent cover film on the photocurable resin composition to make the laminate having the transparent layer on both sides of the photocurable resin layer; curing the photocurable resin layer by irradiating at least one surface of the laminate with the ultraviolet; and cutting and removing the laminate end afterwards by a cut slit device. The transparent cover film is the film produced from the material identical with the transparent base film by a biaxial stretching method, and the temperature (T) to cure the photocurable resin by the ultraviolet irradiation meets the condition shown by the formula Tg+50°C≤TCOPYRIGHT: (C)2013,JPO&INPIT