In the standard blowmoulding process a warm plastic parison (hollow tube) is placed between the two halves of a mould cavity and air pressure forces the plastic into the precise shape of the cavity.
Injection Stretch Blowmoulding
In this process a plastic preformed PET component is formed by injection moulding on the machine. This preform is then stretched and blown into the container shape using a separate mould.
In injection moulding molten plastic is forced from a heated cylinder under pressure into a cavity of a confined mould. The part is then cooled, solidified and removed.
This process bridges the gap between blowmoulding and injection stretch blowmoulding providing scrap-free production of containers with an injection moulded neck finish.