Patent ID: 6287481
Filing Date: 2001-09-11
Classification: A23L,B29C,B29K,B65B,Y10T

Abstract:
A method comprising:a) providing an unwind roll, said roll adapted to hold a roll of oxygen scavenging film, the film comprising an oxidizable organic compound and a transition metal catalyst;b) providing an apparatus for triggering said film, the apparatus comprising a series of bulbs adapted to emit UV-C light having a wavelength of between 200 and 280 nanometers, the bulbs arranged in banks so as to expose the oxygen scavenging film to a dose of said UV-C light of at least 100 mJ/cm.sup.2 as the film passes the bulbs;c) advancing the film from the unwind roll to the apparatus for triggering the film by means of a series of rollers that define a film path extending from the unwind roll to the apparatus for triggering the film;d) passing the film past the series of UV bulbs arranged in banks;e) exposing the film to UV-C light having a wavelength of between 200 and 280 nanometers, so as to provide a triggered film;f) advancing the triggered film from the apparatus for triggering to an apparatus for packaging articles; andg) applying said triggered film, in the apparatus for packaging articles, to make packages for containing said articles;whereby said triggered film is continuously triggered and incorporated into said packages so as to provide oxygen scavenging packages.