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Kenplas Forum ==> Blow Molding (Machine) ==> oval bottles base stabilaty
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Hi,
which temperature are you going to fill?
how long has the bottle to resist?
main principals:
hot fill bottles are produced with the so called heat-set process.
The process increases the cristallinity of the material for the final bottle. The moulds are heated to achieve high cristallinity, usually the preform weight for the bottles is higher than standard bottles. The cooling is done through the stretch rod to fix the bottle into shape.
The bottle design for hot fill containers usually has vacuum panels and ribs that the bottle doesn't collapse after filling and cooling (the volume shrinks).
For more detailed information I can recommend this book:
http://www.amazon.com/PET-Packaging-Technology-Sheffield/dp/0849397863
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Hallo,
Pls. can you advice the main princibles for hotfill , I need infoermation how to design Bottles & preforms for hot fill.
If I have preform how to design bottle?
If I have bottle how to design preform?
Thanks
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how ican solve the problem of base stabilaty in the pet oval bottles.
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This forum published since July 03, 2002.
Renewed on June 22, 2005. |
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