Packaging

Details Packaging Packaging

B - Operations, Transporting

65

B

156/2, 217/24

B65B 31/02 (2006.01) B65B 25/02 (2006.01)

Patent

CA 1320424

ABSTRACT A method of packaging goods within a packaging casing in which a substantially gas impermeable cup- shaped first casing part is provided having a depres- sion and a peripheral lip. A web of gas permeable skin packaging material is placed over the depression and spaced from the bottom of the depression to form a space therebetween. A gas is then provided in the space. The web is sealed to the peripheral lip provid- ing at least atmospheric pressure above to create a pressure differential above and below the web resulting in the web being stretched down inwardly of the depres- sion. Goods are placed over the web, and an outer cas- ing member is placed over the goods and the lip so that the permeable web is further stretched. The outer cas- ing member is then sealed to the lip so that gas in the depression is allowed to permeate over an extended period of time through the web to the goods to enhance the keeping qualities of the goods.

581751

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