RACKAGING FILM FOR KEEPING FRESHNESS OF VEGETABLE AND FRUIT

摘要

PURPOSE:To provide a packaging film for keeping of freshness in order to keep a gas composition in a system suitably by hermetically packaging vegetables and fruits. CONSTITUTION:In order to specify so that permeability of oxygen and carbon dioxide at 23 deg.C of the whole of a film becomes 1000-100000cc/mm<2>.24hrs.atm, micro pores of 100-300mum in mean diameter should be at a rate of 1000 pores/m<2> max. in the film, and the permeability of oxygen and carbon dioxide per each micro pore shall be 100-900cc/24hrs.atm. Thereby, MA packaging by hermetically packaging vegetables and fruits with film of every possible materials will be practicable, and decrease in freshness of vegetables and fruits can be suppressed.