| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for thin and high-performance polarizing laminated film. <P>SOLUTION: A manufacturing method for polarizing laminated film, which comprises a substrate film and a polarizer layer formed on one surface of the substrate film, includes in order: a resin layer forming step for obtaining a laminated film by forming a resin layer made of polyvinyl alcohol resin on one surface of the substrate film; a drawing step for applying free-end uniaxial drawing to the laminated film; and a coloring step for forming the polarizer layer by coloring the resin layer of the laminated film with a dichroism pigment. In the drawing step, a relationship between width W1 of the laminated film before the free-end uniaxial drawing and width W2 of the laminated film after the free-end uniaxial drawing satisfies an expression of (W1-W2)/W1×100≥40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
