| 摘要 |
<p>PURPOSE:To provide the subject articles which can keep fruits and vegetables fresh for a long period of time where the bags or pouches are perforated in a specified size, thus the gas composition in the bags or pouches is led to its optimal one for maintaining the freshness, when the fruits and vegetables are packed. CONSTITUTION:The objective bags or pouches are perforated so that the total perforated area reaches 0.4 to 4mm<2>/kg based on the weight of the vegetable and the ratio of diameter/thickness becomes 3 to 20. The diameter of the perforation is preferably 0.1 to 0.5mm. The material for the bags or pouches is preferably polypropylene, high-density polyethylene or the like and said resin preferably contains a nonionic substituent such as sorbitol monostearate. The perforation is formed by means of carbon dioxide laser or the like.</p> |
