| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composite container comprising an inner vessel made of plastic which is covered by an outer vessel mainly made of paper wherein a back-lining process of the outer vessel can be accelerated, printing, adhesive application and blank cutting can be performed in-line rapidly, further a bottom flap may not be broken at the time of separation of the composite container, and separation is easy. SOLUTION: In the composite container, a polygonal bottom flap 30 provided on an outer vessel 20 or a bottom flap having a plurality of curved sides among sides constituting a polygon has a side 30d parallel to a rule 6h between the bottom flap 30 and a body of the composite container. An interior angle 30Q of the bottom flap with respect to the rule 6h between the bottom flap 30 and the body of the composite container is 90 degrees or less. |
