초록 ▼

A method of packaging perishable foods wherein the perishable food product is packed in a plurality of cartons and the cartons are stacked on a pallet for storage and/or transportation, including placing a sheet of material on a pallet to provide a bottom sheet, with the bottom sheet overhanging the

A method of packaging perishable foods wherein the perishable food product is packed in a plurality of cartons and the cartons are stacked on a pallet for storage and/or transportation, including placing a sheet of material on a pallet to provide a bottom sheet, with the bottom sheet overhanging the sides of the pallet, stacking a plurality of cartons on the bottom sheet on the pallet to form a carton stack, covering the top and sides of the carton stack with a bag of a gas permeable material, the bag having a closed top and an open bottom with a lower edge, sealing the edges of the bottom sheet to the lower edge of the bag, introducing a quantity of nitrogen gas through an opening into the interior of the bag without withdrawing any gas from the bag, and sealing the opening to retain the nitrogen within the bag, and apparatus for packaging such perishable products. Preferably the gas permeable material is a selective permeable material which is more permeable to oxygen than to nitrogen.

대표청구항 ▼

[ I claim:] [1.] In a method of packaging fresh perishable foods wherein the perishable food product is packed in a plurality of cartons and the cartons are stacked on a pallet for storage and/or transportation, the method including the steps of:placing a sheet of flexible plastic material on a pall

[ I claim:] [1.] In a method of packaging fresh perishable foods wherein the perishable food product is packed in a plurality of cartons and the cartons are stacked on a pallet for storage and/or transportation, the method including the steps of:placing a sheet of flexible plastic material on a pallet to provide a bottom sheet, the bottom sheet having outer edges extending beyond the sides of the stack and overhanging the perimeter of the pallet;stacking a plurality of cartons on the bottom sheet on the pallet to form a carton stack;covering the top and sides of the carton stack with a flexible bag made of a gas permeable material, the bag having a closed top and an open bottom with a lower edge overhanging the perimeter of the pallet;overlaying the lower edge of the bag and the outer edges of the bottom sheet;folding the overlaid lower edge of the bag and the outer edges of the bottom sheet upward against the bag, whereby forming a first seal;introducing a quantity of nitrogen gas through an opening into the interior of the bag without withdrawing any gas from the bag; andsealing the opening to retain the nitrogen within the bag.