| 摘要 |
PROBLEM TO BE SOLVED: To enable a synthetic resin bottle to be reduced in volume and deform in an easy and restorable manner and reduced in a thickness as a technical purpose, thereby providing a composite container which is easy and efficient to handle in processes from molding to filling contents and in a waste disposal process and reducing a cost. SOLUTION: The composite container comprises a synthetic resin bottle body 1 including at least a main part of a barrel 4 formed as thin bellows 5 which can stretch longitudinally, fold and restore, and a paper cylinder 8 which is fitted over the barrel 4 with the bellows 5 restored so that it cannot be easily drawn out for keeping the restored form. Rigidity of the paper cylinder 8 facilitates a reduction in the thickness of the bottle body 1.
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