POLYESTER FILM FOR METAL LAMINATION

摘要

PROBLEM TO BE SOLVED: To provide a film with excellent head adhesive properties to a metal sheet and workability after metal coating and having no harm to environment and human body, and being suitable for an application such as covering the inner face of a metal container. SOLUTION: The titled film is a film consisting of at least two layers of polyester layers and the intraface mean refractive index of a layer A constituting one surface is at most 1.580 and the intraface mean refractive index of a layer B constituting another surface is at least 1.630 and at least the layer B is constituted of a polyester polymerized by using a germanium compd. as a main catalyst for polymn.