Patent ID: 7762421

Claim:
An easy-open sealed container comprising: a flange portion surrounding an opening portion of a plastic pack container, the flange portion comprising a broken portion including a cut-off line and a connection part formed in a part or a whole of the flange portion, the flange portion being separated by the broken portion, along the entirety thereof or along a part thereof, into an inner portion disposed near the opening portion and an outer portion disposed near a peripheral edge of the flange portion; a seal film bonded onto an upper surface of the flange portion surrounding the opening portion of the plastic pack container thereby to seal the pack container; and a peeling film bonded onto lower surfaces of the inner and outer portions of the flange portion in which the broken portion is formed, the peeling film comprising a peeling-start portion extruding outward or inward of the flange portion, wherein by peeling off the peeling film along the flange portion, the broken portion which separates the flange portion into the inner and outer portions can be exposed, and a bonding power of the seal film with the flange portion located outside of the broken portion is larger than a bonding power of the seal film with the flange portion located inside of the broken portion.