Study of the influence of the stretch blow moulding processing parameters on PET bottles

The paper deals with the analysis of the most influencing factors in the procedure of manufacturing poly(ethylene-terephtalate) bottles for packaging of table oil, injection stretch blow moulding. The influence of individual manufacturing factors on the quality guidelines important in the manufacturing of PET bottles for table oil packaging, final volume, and post-shrinkage have been studied. The most influencing factors have been determined which affect the volume and shrinkage of PET bottles by using the central composite design.