| 摘要 |
The present invention provide a process for producing a polarizing laminate film comprising a base film, a primer layer and a polarizer layer in order, which comprises the following steps, in order, a primer layer formation step of forming a primer layer by applying a primer solution to one surface of a base film, a polyvinyl alcohol resin layer formation step of forming a polyvinyl alcohol resin layer on the primer layer to obtain a laminate film comprising, in order, the base film, the primer layer and a polyvinyl alcohol resin layer, a stretching step of stretching the laminate film, and a dyeing step of dyeing the polyvinyl alcohol resin layer of the laminate film with a dichroic dye to obtain a polarizer layer, wherein a content of an epoxy type cross-linker in the primer solution is less than 0.1% by weight. According to the present invention, such a polarizing laminate film can be provided that blocking may not occur even in the case of temporarily winding after formation of the primer layer on the base film, that sticking to a transportation roll may not occur in the subsequent transporting step, and that the adhesion between the polyvinyl alcohol resin layer and the base film in the polarizing laminate film after production may not be lowered. |
