| 摘要 |
<p>A process for vacumm-sealing a product packaged in a container (1) to be evacuated and sealed, which comprises (a) engaging an evacuation sleeve extending from the container with an evacuation nozzle (5) connected to an evacuation pump, (b) evacuating the container via the sleeve and nozzle, and (c) selaing the sleeve, where the evacuation sleeve of which the interior communicates with the interior of the container is a double sleeve extending outwardly from the container, and comprising an inner sleeve (3) engaging within the evacuation nozzle and an outer sleeve (4) disposed around and outside the evacuation nozzle to hold open the inner sleeve during step (b), and wherein at least the inner sleeve collapses under atmospheric pressure only upon withdrawal of the nozzle, and the evacuation sleeve is then sealed at a distance from its place of connection with the container.</p> |
