Converting mixed regrind into high-quality thermoformed sheet

摘要

The new high-vacuum twin-screw extrusion (HVTSE) production system from Processing Technologies International (PTi) is designed to convert mixed regrind (PETG and APET) into processable, high-quality thermoformed sheet for consumer packaging. Many thermofonners use a PET-GAG sheet, which is a PETG/APET/PETG multi-layer sheet structure, for consumer packaging — but the downside is that scrap from this sheet structure ends up in a landfill because extruders can't effectively process this material with conventional equipment. The HVTSE dryer-less extrusion system is well-suited to process mixed PETG and APET sheet scrap. PTi's HVTSE technology, which allows PET to be processed without the need for crystallizing and drying, converts this material into usable sheet.