| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem in which it is not specifically disclosed whether a longitudinal seal is shifted not to the center, but to one side between the right and left in a conventional technique in which a bag is formed of a film and a package in which a tape formed of a special co-extrusion film is interposed is manufactured so as to seal a sealing part in an easy-to-unseal state.SOLUTION: There is provided a bag-in-box 1 comprising an inner bag 2 and an outer bag 4. The inner bag 2 is formed of a polyethylene material that a hydrogen gas 3 can permeate little by little, and the outer bag 4 comprises an outer bag made of an aluminum vapor-deposited polyethylene material which prevents the hydrogen gas 3 from permeating to disperse. The inner bag 2 is filled with a liquid, the inner bag 2 filled with the liquid is inserted into the outer bag 4, and a gap space 5 is formed between the inner bag 2 and outer bag 4 at the time of the insertion and then filled with the hydrogen gas 3.</p> |
