| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polarizing film in which irregular color and a shift of an absorption axis occur hardly as a method for producing a polarizing film by applying tension to a polyvinyl alcohol film while holding both ends of the film to stretch the film, to provide a polarizing plate obtained in a high yield ratio from a polarizing film with little irregular color produced by the method and to provide a liquid crystal display using the polarizing plate. SOLUTION: In the method for producing a polarizing film, a crosslinking component is incorporated into a continuously supplied polyvinyl alcohol film, tension is applied to the film in an atmosphere at 30-80 deg.C and 70-99% RH while holding both ends of the film by holding means to stretch the film by 2.0-8.0 times and the stretched film is dried while keeping a width change within ±5%. Dyeing is carried out before supply or after drying. |
