METHOD FOR INSPECTING SEAL FAILURE OF CONTAINER

PROBLEM TO BE SOLVED: To perform accurate and nondestructive total inspection on seal failure due to the biting of contents at a surface-adhered heat-sealed part when heat-sealed regardless of variations in the thickness of the material of a container. SOLUTION: Two electrically conductive line parts which are approximately in parallel and do not intersect with each other are previously formed in an adhering part of a heat-sealed part made of a nonconductive material, one-end sides of the two electrically conductive line parts is exposed as a pair of terminals to the outside of the heat-sealed part. After this, while a heat sealer 30 holds the heat-sealed part in-between to a sealed container 1, the pair of terminals exposed to the outside of the heat-sealed part is connected to an ammeter 5 via electrodes 35 attached to the heat sealer 30 to inspect the presence or absence of a weak current flowing between the two electrically conductive line parts. COPYRIGHT: (C)2010,JPO&INPIT