| 摘要 |
<p>A food-packaging bag the materials of which can be easily recycled. The bag is made of a laminated film composed of a polyester-based low-melting sealant layer, a barrier layer (vapor-deposited layer of a ceramic or metal), and a polyester-based high-melting heat-resistant layer. It is formed by heat-sealing the laminated film so that the polyester-based low-melting sealant layer faces inward.</p> |
