| 摘要 |
PURPOSE:To provide a method for manufacturing a cross-linked polyvinylalcohol based film at a high speed economically. CONSTITUTION:A based material is coated with a solution of polyvinylalcohol or ethylene-vinylalcohol copolymer, the coated film in a swelled state (for example, solvent inclusion ratio in the coated film is 10wt.% or greater) is irradiated with an electron beam and cross-linked, and the coated film is peeled from the substrate. |
