| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a polarizing film, the method including bonding transparent protective film on both sides of a polarizer between a pair of rolls, the method capable of preventing a curl.SOLUTION: In a manufacturing method of a polarizing film, a first transparent protective film B1 and a second transparent protective film B2 of which elasticity defined by a value of elasticity modulus (MPa)×thickness (μm) is different is passed through a pair of rolls having different roll hardness and bonded on both sides of a polarizer A via adhesion layers. A high elastic film B2 is conveyed from a side of a low hardness roll R1 of the pair of rolls, and low elastic film B1 is conveyed from a side of a high hardness roll R2. |
