The invention relates to a method of capping a hollow container, the container including a neck which defines an opening towards the interior of the container, the capping method including the following steps: placing a film over the entire edge of the opening in the container so as to cover the opening; deep drawing the film in the opening in the neck of the container with a die, such that the film forms a collar, a central region and a riser at the junction between the collar and the central region, the riser being in contact with the inner wall of the neck; and securing the deep drawn film to the neck, thus rendering the film integral with the body of the container.

A tool and method for forming a container from a construct. The tool comprising a cavity for receiving a construct, a core operatively associated with the cavity and being operable to move into the cavity, an injection cavity for receiving injection-molding material and directing injection-molding material around at least a portion of the perimeter of the construct, and a clamping feature. The clamping feature is operatively connected to at least one of the cavity and the core and is for clamping a peripheral portion of the construct as the core moves into the cavity to form the construct into the container.