| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a double-walled container, which allows an opening for introducing outside air into a double-walled container to be formed very easily and reliably at lower cost than the processing cost of the conventional art, where, the double-walled container can be easily manufactured with a molding device that does not differ significantly from the conventional art, and the double-walled container has a relatively rigid outer container and a soft inner container the volume of which can change according to the amount of contents filled inside the outer container.SOLUTION: In a method for manufacturing a double-walled container, when a pair of partial molds is brought closer to each other to be assembled to form a split mold, at least a portion of the mating surfaces of the pair of partial molds clamp a parison at two side portions that are at horizontal positions facing each other.SELECTED DRAWING: Figure 1 |
