| 摘要 |
A packaging material for forming a packaging for a product releasing gasses, said packaging material comprising an integrated pressure release valve. It comprises a first inner film provided with a first opening and a second outer film covering the first opening. Between the first inner and the second outer film a first chamber is provided. The first opening provides a gas communication between the first chamber and the interior of the packaging. The first and second films delimit a channel being in fluid communication with the first chamber. Further, the packaging material comprises a second chamber and the channel connects the first and second chamber. The second chamber comprises a second opening being in fluid communication with the exterior of the packaging. At least one of the first and second chambers comprises a liquid and spacer means. |
