| abstract |
A method for producing a polarizing laminate film having excellent polarizing performance is provided. In a stretching process, a TD ratio which is a ratio of a length at the time of stretching to a length at the time of starting the stretching process in the width direction of the polyvinyl alcohol resin layer, and a contraction with respect to the length at the start of the stretching process in the longitudinal direction. In the first period in which the MD magnification, which is the magnification of the time length, is 1.0 <TD magnification ≦ 3.0, the relationship of the following formula (1) is satisfied, and the second period in which TD magnification> 3.0. Then, the manufacturing method of the light-polarizing laminated film which extends and shrinks | contracts, satisfy | filling the relationship of following formula (2). MD magnification ≦ (−0.2) × TD magnification + 1.2 Formula (1) MD magnification ≦ (−0.1 / 3) × TD magnification + 0.7 Formula (2) [Selection] Figure 4 |