| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that end parts of a laminate film in a width direction cannot be used for a polarizing plate because uneven dyeing is caused in the width direction by wrinkles or sagging and that if a polarizing laminate film obtained after a dyeing process has wrinkles or sagging, a protective film cannot be laminated, which makes stable production of a polarizing plate impossible.SOLUTION: A laminate film is provided, which has a substantially unstretched polyvinyl alcohol resin layer on at least one surface of a long base film. When the polyvinyl alcohol resin layer is equally divided into 9 regions in a width direction, the laminate film satisfies a formula of D1e-D1c≤-0.3 μm, where D1e represents an average film thickness in the outermost region and D1c represents an average film thickness in the center region.SELECTED DRAWING: Figure 2 |
