RESIDUAL STRESS IN PET PREFORMS: HOW TESTING METHODS INFLUENCE QUALITY OUTCOMES

Residual stress is a key factor that can impact the quality and performance of PET preforms. Although these stresses might not be visible, they are crucial in how a preform performs during blow molding, storage, filling, and shipping. If left unchecked, residual stress can result in issues like cracking or warping, which can affect both the bottleâ