Abstract: A composite film that, when used as a protective film or an antireflection film for e.g., a polarizing film of a liquid crystal display, has a surface slip property good enough to be rolled and excellent mechanical and chemical resistance and optical properties. In one aspect, the composite film has a substrate film and a hard coat layer provided on the substrate film, the hard coat layer formed of an ionizing radiation-cured resin, the surface of the hard coat layer having fine irregularities serving to create a surface slip property. In another aspect, the composite film has a substrate film and a hard coat layer provided on the substrate film, the hard coat layer formed of a composition comprising an ionizing radiation-cured resin, fine particulates of inorganic and/or organic materials, and an organic silicone.

Abstract: The present invention provides a method for producing a triacetyl cellulose film excellent in not only glare reducing property but also transparency and further excellent in the resolution and contrast and, at the same time, having good surface hardness and solvent resistance; a triacetyl cellulose film produced by the method; and a polarizing plate using the triacetyl cellulose film.A coating composition consisting essentially of a resin bead having a refractive index of 1.40 to 1.60 and an ionizing radiation curing resin composition is coated on a transparent substrate material, and the coated substrate material is irradiated with an ionizing radiation to cure the ionizing radiation curing resin. According to the present invention, when an acetyl cellulose film is used as the transparent substrate material, even though the film is saponified with an alkali, no increase in the haze value occurs and a triacetyl cellulose film provided with a hard coat having a glare reducing property can be obtained.