SURFACE-PROTECTIVE FILM OF POLARIZING PLATE, POLARIZING PLATE PROTECTED BY THE SURFACE-PROTECTIVE FILM AND METHOD FOR PROTECTING SURFACE OF POLARIZING PLATE USING THE SURFACE-PROTECTIVE FILM

摘要

PROBLEM TO BE SOLVED: To provide a surface-protective film for a polarizing plate having a pressure-sensitive adhesive layer pasted releasably on one surface of a plastic film, in which the surface-protective film does not float like a tunnel even when subjected to a heating treatment.;SOLUTION: This surface-protective film for a polarizing plate satisfies the following inequalities (1) to (3) in the relationship with the polarizing plate to which it is pasted, (1):|(F(MD)-P(MD))+(F(TD)-P(TD))|≤0.3; (2):|F(MD)-P(MD)|≤0.4; (3):|F(TD)-P(TD)|≤0.4, where F(MD) and F(TD) each indicates a dimensional change ratio in the flow direction (MD) and traverse direction (TD) of the surface-protective film for a polarizing plate, respectively, and P(MD) and P(TD) each indicates a dimensional change ratio in the flow direction (MD) and traverse direction (TD) of the polarizing plate, respectively.;COPYRIGHT: (C)2012,JPO&INPIT