The global shift towards a circular economy is reshaping the PET packaging landscape. With new regulations like the EU Single-Use Plastics Directive and increasing demand for recycled content, mold makers must adapt. At GUTEWEI, we are at the forefront of this transition, manufacturing molds specifically designed to handle the unique challenges of post-consumer recycled PET (rPET) and next-generation closure systems.

Processing rPET can be difficult due to variations in viscosity and the presence of contaminants. Our preform mold designs feature optimized gate geometries and venting systems to ensure consistent melt flow and filling, even when using high percentages of recycled material. This results in preforms with reduced acetaldehyde (AA) levels and consistent visual clarity.

Additionally, the industry-wide move to tethered caps requires absolute precision in the neck finish. A poorly designed neck finish can lead to cap seating issues and leakage. GUTEWEI’s machining capabilities ensure that the critical contact surfaces between the preform and the closure are perfectly executed. By investing in the latest manufacturing technology, we provide our customers with the confidence to meet sustainability goals without sacrificing production efficiency.