| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a freshness holding film used to hold the freshness of a vegetable or fruit, and the same freshness holding film. SOLUTION: This method for manufacturing a freshness holding film comprises the steps of uniforming mixing 0.05 to 2.0% of a mineral oil or liquid- like additive with pellet of a resin raw material having a particle size of 2 to 5mm, further adding 0.05 to 0.5% of a fine powder of charcoal having 150 to 500 mesh, uniforming mixing them to stick the fine powder of the charcoal to the surface of the pellet of the resin raw material, thermally melting it, and extrusion molding it to a film-like state to form a single layer or multi-layer film. |
