| 摘要 |
PROBLEM TO BE SOLVED: To provide a double container capable of preventing poor peeling of an inner layer body and deformation of an outer layer body in pouring out the contents by making the inner layer body easily peelable from the outer layer body.SOLUTION: A double container comprises an outer layer body which is provided with a cylindrical spout 2a and a trunk 2b connected to the spout 2a and has an air inflow hole 4 penetrating the spout 2a in the inward and outward directions and arranged in the side part of the spout 2a and an inner layer body 3 which is provided with an opening part 3a connected to the open end of the spout 2a and a containing part 3b containing the contents, connected to the opening part 3a and housed in the outer layer body 2. In the trunk 2b of the outer layer body 2, an outer layer rib 7 extending from the side of the spout 2a toward a bottom part 2c is provided, and the outer layer rib 7 has an undercut-shaped cross section of its inner surface facing the inner layer body 3. In the inner layer body 3, an inner layer rib 9 having a shape of the cross section corresponding to the inner surface of the outer layer rib 7 is provided, and a clearance is formed between the outer layer rib and the inner layer rib. |
