| 摘要 |
<p>A package for storing oxygen sensitive goods includes a first web in the form of a tray (30) which may include flanges (14) around the perimeter of the tray, solid carbon dioxide (16), a good or goods, such as red meat or other oxygen sensitive food and non-food products, disposed above the tray, a second web (18) in the form of a gas permeable film material, which may also include slits or perforations (20), covering the goods, and a third web (12) in the form of a barrier bag made of a substantially impermeable material which surrounds the tray. The good or goods are placed in the tray and wrapped either manually or automatically with a gas permeable film material which surrounds the tray. The good or goods are placed in the tray and wrapped either manually or automatically with a gas permeable film material. The wrapped tray and goods form a container which is disposed within the barrier bag (22). The barrier bag incorporates a first one-way (24) valve on the inside of one side of the barrier bag and a second one-way valve (26) on the outside of the other side of the barrier bag. Gaseous carbon dioxide is introduced into the barrier bag through the second one-way valve (26) and the oxygen laden atmosphere is exhausted through the first one-way valve (24). A vacuum can also be applied to the first one-way valve (24) to facilitate the formation of a modified atmosphere within the barrier bag. Upon removal of the wrapped tray from the barrier bag, oxygen is allowed to permeate through the gas permeable film and/or through the perforations in the gas permeable film. In the case of meat products, the meat is then allowed to become reoxygenated and reestablish its characteristic red color.</p> |
