| 摘要 |
PROBLEM TO BE SOLVED: To provide a double container capable of reducing variations in cap fastening position when a cap is fastened with a constant torque.SOLUTION: A double container (1) includes an inner layer body (10), an outer layer body (20), an inside plug (30), and an extraction cap (60). An outer peripheral surface of a mouth peripheral wall (22) and an inner peripheral surface of an outer peripheral wall (61) come into contact with each other at a lower position than a through opening (23) so as to form a seal part (80). In a state in which a lower end (67) of the outer peripheral wall (61) comes into contact with an upper surface (29) of a shoulder part (25) of the outer layer body (20) on a lower side than the seal part (80), a clearance (D) is formed between a lower surface of a top wall (31) of the inside plug (30) and an upper end surface (28) of the mouth peripheral wall (22). |
