| 摘要 |
PROBLEM TO BE SOLVED: To provide a raw material for the passage closing material of a laminated tube container generating no tear at the time of draw processing, having good incision properties and not eroded by alkaline content. SOLUTION: The raw material 10 for the passage closing material of the laminated tube container is formed by laminating a polyolefinic resin film, a first biaxially stretched polyester film, a metal foil and a second biaxially stretched polyester film in this order from the contact side with the open air, and further laminating a film 18 on the contact side with content obtained by performing the coextrusion of polyolefinic resin films holding a polyamide film between them and stretching the extrudate. As the polyolefinic resin films, straight chain low density polyethylene films 15 and 17 are especially preferable and, as the polyamide film, a nylon film 16 is especially preferable. |
