| 摘要 |
The present invention provides a method of producing a polarizing film having excellent optical characteristics. The method of producing a polarizing film of the present invention includes:
forming a polyvinyl alcohol-based resin layer 12 on a thermoplastic resin substrate 11 to produce a laminate 10 ;
dyeing the polyvinyl alcohol-based resin layer 12 of the laminate 10 with iodine;
stretching the laminate 10 ; and
covering, after the dyeing and the stretching, a surface of the polyvinyl alcohol-based resin layer 12 of the laminate 10 with a cover film having a moisture permeability of 100 g/m 2 ·24 h or less, followed by heating of the laminate 10 under the state. |
