COMPOSITE CONTAINER, MANUFACTURING METHOD OF COMPOSITE CONTAINER AND MANUFACTURING DEVICE FOR COMPOSITE CONTAINER

To provide a composite container, a manufacturing method of the composite container and a manufacturing device for the composite container which can increase the separability of a plastic member provided on the outer side of a container body.SOLUTION: A manufacturing method of a composite container 10A includes: a process of preparing a preform 10a; a process of providing a plastic member 40a on the outer side of the preform 10a; a process of manufacturing a container body 10 and a plastic member 40 provided so as to be in close contact with the outer side of the container body 10 by performing the blow molding to the preform 10a and the plastic member 40a; and a process of forming a cut part 45 penetrating the plastic member 40 with respect to the plastic member 40 after the blow molding. The cut part 45 is formed by rotating a cutting member...