| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered stretched film which has excellent barrier properties and high physical strength and can be heat-sealed, and to provide a packaging material obtained by using the multilayered stretched film.SOLUTION: The multilayered stretched film according to one embodiment is characterized in that a multilayered film having a heat-sealable resin layer B on one or both surfaces of a polyglycolic acid-based resin layer A is formed by co-extrusion and the multilayered film is stretched to the longitudinal and lateral directions by 1.1-4.0 stretch ratio. The above multilayered stretched film in another embodiment is characterized in that an adhesive resin layer C is arranged between the polyglycolic acid-based resin layer A and the heat-sealable resin layer B. |
