| 摘要 |
Packaging envelope or packaging bag consisting of at least two plies, of which the one ply is elastic and the other ply is a gas-barrier layer. The inner ply can consist of a food-compatible material, so that foods, in particular meat, can be placed in the packaging envelope or the packaging bag. For packaging, the envelope is expanded and the object then inserted. After the insertion, the envelope contracts through its flexibility in the direction of the center line of the envelope and automatically presses the air present between object and envelope out of the packaging. In the packaging of shapable objects, in particular meat, the envelope presses these objects, in particular the meat, simultaneously into an at least approximately circular cross-sectional shape through the exerted radial forces. The gas-barrier layer prevents the entry of air through the envelope material even for a lengthy storage period. |
