PLASTIC CONTAINER SUITABLE FOR INSPECTING SEALABILITY OF RETORT-STERILIZED PLASTIC CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide a plastic container suitable for inspecting sealability of a retort-sterilized plastic container, namely, to provide a characteristic of the container which enables to precisely discriminate only such a container that has a defect in the sealability by measuring the filling height after retort-sterilization.;SOLUTION: The plastic container suitable for practicing a method for inspection is equipped with a vacuum absorptive panel, and has a characteristic that a lower-side skirt position of a filling height distribution after retort-sterilization and an upper side skirt position of the filling height distribution after opening a plug are separated by an amount exceeding the width of an error of a level measurement. In addition, the plastic container of the present invention satisfies the above condition by making a coefficient A of a characteristic of the degree of vacuum of the container expressed by Y=AX to be 0A3 in a coordinate system in which the amount of absorption (ml) is taken on X-axis and the degree of vacuum (KPa) is taken on Y-axis. In addition, furthermore, the above conditions are satisfied by making the amount of vacuum absorption (ml) to be ≥4% of the volume of the container.;COPYRIGHT: (C)2007,JPO&INPIT