| 摘要 |
本发明提供一种偏光性积层膜的制造方法，其包含下述步骤：在基材膜面形成聚乙烯醇系树脂层而得到积层膜的步骤；将积层膜延伸而得到延伸膜的步骤；以及使用二色性色素将延伸膜的聚乙烯醇系树脂层染色而制成偏光片层，以获得偏光性积层膜的步骤；其中，要形成聚乙烯醇系树脂层的基材膜面之算术平均粗度Ra0为130nm以下。;并且，本发明提供一种偏光板的制造方法，其依序包含下述步骤：在所得的偏光性积层膜之偏光片层的与基材膜为相反侧之面上贴合第1保护膜的步骤；以及将基材膜剥离去除的步骤。; a step of dying the polyvinyl alcohol resin layer of the elongated film by dichroic dye to produce a polarizer layer, thereby obtaining a polarizable laminated film; wherein the arithmetic mean roughness Ra0of the base film surface on which the polyvinyl alcohol resin layer will be formed is 30 nm or less. ;In addition, the present invention provides a method for producing polarizing plate, comprising: a step of laminating a first protection film on a surface of the polarizer layer of the obtained polarizable laminated film opposite to the base film, and a step of peering the base film. |
