The present invention is directed to process for making a packaging, said packaging comprising a container ( 2 ) with a container body ( 5 ) and a container opening having an upper edge, said packaging further comprising a closure ( 4 ) for closing said container, the container and the closure being made out of polyethylene terephtalate (PET), polyethylene naphtalate (PEN), or a combination thereof, said container ( 2 ) and said closure ( 4 ) comprising respectively first ( 8 ) and second ( 9 ) attachment means, characterized in that: said process comprising the steps of in order: (i) fitting said first ( 8 ) and second ( 9 ) attachment means to each other, (ii) deforming at least one of the first and/or second attachment means up to the point of permanent deformation of the PET or PEN material, by punching, rolling, or a combination thereof, so as to create a permanent, leak-tight, attachment between said container and said closure.
1. A process for making a packaging, the process comprising the steps of:
coupling a first member of a container to a second member of a closure, the container comprising a plastic material selected from the group consisting of polyethylene terephtalate (PET) and polyethylene naphtalate (PEN), the closure comprising a ring and an overcap pivotally attached to the ring by a hinge, and the coupling step comprising inserting the ring into a groove in the first member; and
forming the packaging by deforming at least one of the first or second members up to the point of permanent deformation of the plastic material, the deformation performed by a step selected from the group consisting of punching, rolling and a combination thereof so as to create a permanent attachment between the container and the closure, and the permanent deformation comprising deforming a wall of the groove to enclose the ring in the groove.