PET preforms are the initial form in the plastic bottle manufacturing process. The PET Preform quality, such as the preform’s dimensional accuracy, thickness distribution, and appearance, not only affects the smoothness of the production process but also directly impacts the…
1. The Birth of PET Preforms PET preforms are semi-finished intermediate products in the production of PET bottles. Their forming process requires molten PET material to be first injected into a preform mold by an injection molding machine and then cooled.…
Early PET bottle forming did not actually go through the preforms stage. Raw material pellets were directly heated, extruded into parisons, blown, and cooled—all in one step—and the bottle was finished. It sounded more straightforward than today’s process, but this…
1. What Is PCO In PET Preform? Among the many specifications of PET preforms, PCO1881 and PCO1810 are undoubtedly the two most representative neck finish standards in the global beverage packaging industry today. To understand the difference between the two,…
PET, short for Polyethylene Terephthalate, is one of the most widely used plastic materials today and is the preferred material for preforms manufacturing. In the packaging industry, common preform materials include PP, PET, rPET, and PETG, among others. These materials…
1. How to Classify Preform Types? As we all know, most plastic bottles are formed by blowing preforms. However, when it comes to the preform types, procurement professionals often find themselves facing a puzzling question: looking across the market, plastic…
