초록 ▼

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.d

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.

대표청구항 ▼

[ What is claimed is:] [1.] A package for preserving freshness of a produce, comprising:a corrugated fiber board composed of:(A) an outer wall having a carbon dioxide permeability coefficient Pco.sub.2 of 5.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg or greater at a temperat

[ What is claimed is:] [1.] A package for preserving freshness of a produce, comprising:a corrugated fiber board composed of:(A) an outer wall having a carbon dioxide permeability coefficient Pco.sub.2 of 5.times.10.sup.-10 cm.sup.3 (STP)cm/cm.sup.2 .multidot.s.multidot.cmHg or greater at a temperature of 27.degree. C.;(B) a corrugating medium; and(C) an inner wall having a water-vapor transmission rate of 100 g/m.sup.2 day or less at a temperature of 27.degree. C.; andsealing tape substantially sealing end parts of the corrugated fiber board which are exposed to an outer surface of the package.