Process Engineering Quality Control

PET Preform Temperature Measurement What to Measure and Record

November 5, 2026

PET Preform Temperature Measurement: What to Measure and Record Temperature is the single most critical process variable in PET reheat stretch blow moulding. A deviation of just $\pm 2^\circ\text{C}$ can shift a bottle from optimal biaxial …

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Neck Finish Cooling in PET Preform Reheating

November 5, 2026

Neck-Finish Cooling in PET Preform Reheating In two-step stretch blow moulding, the preform body and the preform neck finish serve opposite functional purposes. While the body wall must be heated uniformly above its glass transition temperature to …

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