| 摘要 |
PROBLEM TO BE SOLVED: To provide a cellulose film that can substitute for a packaging material obtained by using polyvinyl alcohol or ethylene vinyl alcohol derived from petroleum which causes increase of carbon dioxide in air by incineration in disposal and that keeps oxygen permeability low even under high humidity environment.SOLUTION: The cellulose film is provided in which a metal substitutes for at least a part of carboxyl group and which has oxygen permeability of 1 (mL μm mkPaday) or less.SELECTED DRAWING: None |
