| 摘要 |
A process for producing a polarizing film, in which even when a raw film of large width is used, there can be obtained a polarizing film not only excelling in optical characteristics but also realizing uniform in-plane optical characteristics. There is provided a process for producing a polarizing film, comprising the dyeing step of dyeing a polymer film, the drawing step of drawing the dyed film and the drying step of drying the film having undergone these steps while conveying the same by rolls, wherein in the drying step, at least two rolls are used as the rolls and the drying is performed under conditions such that the ratio of distance between neighboring rolls (R) to initial width of the polymer film (W), (R/W) is set to fall within the range of 0. 5 to 4.0.
|
