''método de moldagem por sopro do pet e recipiente de pet demoldado por sopro''

摘要

A PET blow moulding method is provided for producing a blow moulded PET container (10) suitable for snap fitting a base cap (60) and having an axial centre for enabling a blow molding process. PET preform (20,30) is inserted into a mould shaped to an inverse of the snap-fit PET container. Such a blow moulded PET container (10) is also disclosed. The PET preform is narrowed on a distal end side shaped for forming a knob portion (1) that is connected to a liquid compartment (3) of the PET container (10) via a neck portion (4), so as to form the knob having an inwards receding snap zone (43) formed by a curvature in the neck portion (4).