Patent ID: 6776998
Filing Date: 2004-08-17
Classification: A23L,B65D

Abstract:
A packaging film for retarding fungal and mold growth in packaged fruit, the film having a polymer blend comprising:at least one EVA copolymer; at least one low density polyethylene having a different water transmission rate than the at least one EVA copolymer to control the migration of water vapor into the film from the packaged fruit; and an inorganic metabisulfite antifungal agent, wherein the antifungal agent is first blended with the EVA copolymer and then blended with the low density polyethylene, wherein the moisture from the fruit activates the antifungal agent, and wherein the antifungal agent decomposes continuously in response to water vapor from humidity surrounding packaged fruit thereby producing controlled release of fungicidal sulfur dioxide into the fruit that retards the fungal growth.