Determination of The Best Injection Stretch Blow Molding Process Parameters in Polyethylene Terephthalate Bottle Service Performance

Polyethylene terephthalate (PET) bottles which are thermoplastic materials used very commonly for the storage and transport of carbonated beverages. The most production method PET is Injection Stretch Blow Molding (ISBM) process. There a variety parameters affecting produced bottles’ performances. Amongst these parameters, stretch rod movement, blowing pressure preform surface temperature important ones. Assignation optimal design in taken into account. effects such as Preform Temperature (°C), Rod Position (mm) Final Pressure (Bar) were analysed with Taguchi (TM), Grey relational analysis (GRA) ECHIP. Body-weight (gr) (R1), Top Load (Pa) (R2), Burst (R3), Stress Crack Resistance (Min.) (R4) Tg (oC) (R5) consiedered performance parameters. experimental proposed by involves using orthogonal arrays. An L9 array was chosen procedure. Primarily, optimized ECHIP Design Experiment (DOE). Thereafter, all factors together TM, GRA