METHOD OF PRODUCING POLARIZABLE LAMINATED FILM AND POLARISING PLATE, POLARIZABLE LAMINATED FILM AND POLARIZING PLATES SET

摘要

A method for manufacturing a polarizable laminated film of the present invention includes a stretching process for stretching a laminated film comprising a first polyvinyl alcohol resin layer and a base film and a second polyvinyl alcohol resin layer, and a dyeing process for dyeing. In the dyeing process, in case a time for the first polyvinyl alcohol resin layer contacts a dyeing solution is T1 and a time for the second polyvinyl alcohol resin layer contacts the dyeing solution is T2, a ratio of the contact time difference calculated by a below equation is included within a range of ±4%. Ratio (%) of contact time difference = (T1-T2)/{(T1+T2)/2}×100.