METAL LAMINATING POLYESTER FILM

摘要

PURPOSE:To provide a laminated film which has low extraction ingredient due to water or hot water and excellent sanitation when a metal vessel for food or beverage is laminated to be covered. CONSTITUTION:A polyester film contains a copolymer ingredient of polyester A for forming a surface to be laminated on a metal being 10-40mol% in such a manner that end carboxyl group of the film after the metal is thermally laminated and plate made is less than 50 equivalent/t and low molecular weight matter to be extracted by treating by a retort for 1 hour with pure water at 125 deg.C after the metal is thermally laminated and plate made is 2.0mug or less per 1cm<2> of a coated surface.