| 摘要 |
PROBLEM TO BE SOLVED: To provide a foamed net capable of retaining freshness thereof in individual packaging of fruits, and a foamed sheet capable of retaining freshness thereof when case packaging, conveying and storing the fruits.SOLUTION: In a foamed net (a foamed cap net, a foamed insert net) and a foamed sheet consisting of a polyolefin resin containing at least one kind of inorganic salt of 10-1000 ppm selected from the group of sodium chloride, magnesium chloride, calcium chloride, and potassium chloride, and glycerin fatty acid ester of 1,000-20,000 ppm, or a polyolefin resin that sodium ions and magnesium ions of 50-1000 ppm are dispersed, the polyolefin resin foamed net and foamed sheet for retaining freshness of foods are 2.0-12.0 mm in sheet thickness (or 1.5-20.0 mm in foamed strand diameter) and 20-60 times for the sheet and 30-70 times for the net in expansion ratio. |
