| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a packaging material for an oxygen scavenger which can solve the usual problems that the speed of oxygen absorption is unstable and that the cost is high due to a slow machining speed, of which the cost is low and of which the air permeability can be controlled arbitrarily. SOLUTION: The packaging material is constituted by a method wherein a sheet having air permeability is used as a base and a perforated plastic film is adhered partially, in the shape of a grating, stripes or dots, onto the surface of the sheet by dry lamination, while the rear of the sheet is subjected to gravure roll coating in the shape of dots with a hot-melt adhesive.</p> |
