| 摘要 |
<p>A one-way valve (21, 31, 41, 51, 61, 71), particularly for foodstuff packages, said valve designed to be mounted on a package (25, 35, 45, 55, 65, 75) and arranged to open in response to an excess pressure inside said package (25, 35, 45, 55, 65, 75), said valve (21, 31, 41, 51, 61, 71) comprising an aperture (26, 36, 46, 56, 66, 76) formed in the package material. On top of said aperture (26, 36, 46, 56, 66, 76) an adhesive layer (22, 32, 42, 52, 62, 72) is arranged. The adhesive layer (22, 32, 42, 52, 62, 72) is arranged in such a manner that the valve (21, 31, 41, 51, 61, 71), upon opening, exhibits a pre-defined channel allowing passage-through.</p> |
