FILM MATERIAL, CONTAINER USING FILM MATERIAL, AND PRODUCTION METHOD OF FILM MATERIAL

摘要

PROBLEM TO BE SOLVED: To improve heat sealability and a heat seal appearance of a laminate film.SOLUTION: A laminate film 20 is formed by laminating an adhesive layer 22 and a substrate film 23 on the surface of a sealant film 21. An exposed area 21a to be fused onto a fusion object is formed on a part of the surface of the sealant film 21, and the melting point of the substrate film 23 is higher by 50°C or more than the melting point of the sealant film 21.