BLOW FILL SEAL: THE PROCESS
EXTRUSION
Extrusion of plastic granules in the form of a hot hollow pipe of molten plastic called “parison”.
BLOW
While the mould closes over the parison, the container gets formed and acquires the desired shape, which can be created either by blowing sterile filtered compressed gas (air, nitrogen or any other inert gas) or by applying the vacuum on the mould cavities.
BLOW
FILL
The containers are then filled with the pharmaceutical solution under Grade A conditions in a closed system, always protected from the external environment, ensuring unparalleled safety.
SEAL
After filling, the top of the parison gets pressed between the mould to seal the container. The result is hermetically sealed containers every 10 to 15 seconds.
SEAL
DEFLASH
The last step is removing the flash (excess polymer or scrap) or trimming, and delivering the containers outside the machine.
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