POLARIZATION FILM AND MANUFACTURING METHOD THEREOF, OPTICAL FILM AND IMAGE DISPLAY UNIT

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a polarization film capable of preventing a curl of a polarization film while enhancing adhesion performance of an adhesive layer between a polarizer and a transparent protective film.SOLUTION: A manufacturing method of a polarization film includes: a coating process for coating an activation energy ray curable adhesive composition at least on one surface of a polarizer, a first transparent protective film or a second transparent protective film; a lamination process for laminating the polarizer and the first transparent protective film, and laminating the polarizer and the second transparent protective film; and an adhesion process for adhering the polarizer and the first transparent protective film, and the polarizer and the second transparent protective film, via an adhesive layer obtained by irradiating with activation energy rays first from a side of the first transparent protective film and then irradiating with activation energy rays from a side of the second transparent protective film to cure the activation energy ray curable adhesive composition.