SHEET AND PACKAGE

摘要

PROBLEM TO BE SOLVED: To provide a sheet and a package which is very low in permeability of water vapor and oxygen, allows formation into a container and exerts high barrier properties even after a retort treatment or a sterilization treatment.SOLUTION: A sheet has a water vapor barrier layer and an oxygen barrier layer and has a water vapor permeability at 40°C and 90%RH of 0.15 g/mday or lower and an oxygen permeability at 25°C and 60%RH of 0.2 cc/mday or lower.