| 摘要 |
An opening device for a packaging container, the packaging container being formed from a packaging material having an upper side constituting the outside of the packaging container and a lower side constituting the inside of the container, the opening device including two operational parts, a preformed support part arranged on the upper side of the packaging material and a membrane part arranged on the lower side of the container and extending into openings of the support part such as to mechanically connect the two parts, and wherein the materials of the membrane part and the support part are thermally incompatible polymer materials. |
