METHOD OF PRODUCING OPTICAL FILM AND ANTI-REFLECTION FILM, OPTICAL FILM, ANTI-REFLECTION FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE COMPRISING SAME

摘要

A method of producing an optical film comprising at least two ionizing radiation-curing layers on a transparent substrate, the mehod comprising: Step 1 of irradiating a layer A, which comprises two or more kinds of polymerization initiators having different absorption ends at a longer wavelength side in wavelength range of sensitivity to which they are sensitive, with an ionizing radiation having a wavelength to which at least one kind (a) of the polymerization initiators is not substantially sensitive and at least one kind (b) of the polymerization initiators is sensitive; and Step 2 of spreading a coating solution for layer B comprising at least one polymerization initiator (c) over the layer A after Step A and then irradiating the coating solution for layer B with an ionizing radiation having a wavelength to which the polymerization initiators (a) and (c) are sensitive.