Semi-sealed or sealed package for preserving produce composed of

Details Semi-sealed or sealed package for preserving produce composed of Semi-sealed or sealed package for preserving produce composed of

1995-06-07

1998-04-28

Dye, Rena

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 343, 428182, 428511, 428513, 428211, 229 35R, 229120, 2291983, 229939, 426118, 426127, 426419, B65D 8534

Patent

active

057442053

ABSTRACT:
A package and a method are disclosed for preserving freshness of produce using a corrugated fiberboard composed of an outer liner having a carbon dioxide permeability coefficient Pco.sub.2 of greater than 5.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg at a temperature of 27.degree. C.; a corrugating medium; and an inner liner having a water-vapor transmission rate of less than 100 g/m.sup.2 .multidot.day at a temperature of 27.degree. C. The end parts of the corrugated fiber board which are exposed to an outer surface of the package are substantially sealed with a seal tape. A wrapping paper covered at least on one surface thereof with a resin layer which contains therein less than 0.917 g/cm.sup.3 density of a copolymer of ethylene and .alpha.-olefin having a carbon number of 3 to 12, having a carbon dioxide permeability coefficient of greater than 8.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg, a permeability coefficient ratio Pco.sub.2 /Po.sub.2 of greater than 3.5 and a water-vapor transmission coefficient of less than 80.times.10.sup.-9 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg is also disclosed. With the use of the package or wrapping paper, produce can fall in a dormant condition, and the freshness thereof can be preserved so that the storage period therefor can be prolonged.

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