초록 ▼

An easily openable packaging container produced by heat-sealing a container member with a lid member, the easily openable packaging container comprising: (a) a container member including a recess portion and an integral flange portion surrounding the recess portion; and (b) a multilayer lid member i

An easily openable packaging container produced by heat-sealing a container member with a lid member, the easily openable packaging container comprising: (a) a container member including a recess portion and an integral flange portion surrounding the recess portion; and (b) a multilayer lid member including an inner layer and a substrate layer adjacent to the inner layer being peelable from the inner layer, the inner layer being heat-sealed to the flange portion outside the inner edge of the flange portion and inside the outer edge of the flange portion and having a first circular depression therein outside the outer edge of the heat-sealed portion and inside the outer edge of the flange portion and a second circular depression therein inside the inner edge of the heat-sealed portion and outside the inner edge of the flange portion, the first circular depression and the second circular depression being formed by pressing pressure, the first and second circular depression being for cutting the inner layer when separating the multilayer lid member from the container member, thereby leaving a part of the inner layer between the first and second depressions bonded to the flange portion.

대표청구항 ▼

An easily openable packaging container produced by heat-sealing a container member with a lid member, the easily openable packaging container comprising: (a) a container member including a recess portion and an integral flange portion surrounding the recess portion; and (b) a multilayer lid member i

An easily openable packaging container produced by heat-sealing a container member with a lid member, the easily openable packaging container comprising: (a) a container member including a recess portion and an integral flange portion surrounding the recess portion; and (b) a multilayer lid member including an inner layer and a substrate layer adjacent to the inner layer, said substrate layer being peelable from the inner layer, the inner layer being a thermoplastic resin layer having a melting point or softening point lower than that of the material of the substrate layer, the inner layer being heat-sealed to the flange portion outside an inner edge of the flange portion and inside an outer edge of the flange portion, said inner layer having a first circular depression therein outside an outer edge of the heat-sealed portion and inside the outer edge of the flange portion and a second circular depression therein inside an inner edge of the heat-sealed portion and outside the inner edge of the flange portion, the first circular depression and the second circular depression being formed by pressing pressure, the first and second circular depressions being for cutting the inner layer when separating the multilayer lid member from the container member, thereby leaving a part of the inner layer between the first and second depressions bonded to the flange portion.