In the recycled-materials discussion, the key question is: How does the recycled resin itself reach FDA food-contact standards?
At POLYTEC Machinery, our Rigid Plastic Washing Line is designed as a full-process quality control system to answer that question — step by step.
Source control — strict input acceptance: known polymer types, traceable batches, reject unknown/contaminated streams.
Precise sorting — separate by polymer & color to avoid cross-contamination.
Multi-stage washing & thermal treatment — remove organics, oils, adhesives and surface contaminants.
Melt filtration & extrusion with degassing — eliminate residuals during re-melting.
Laboratory validation — migration testing, residual contaminant analysis, and third-party verification to demonstrate compliance with FDA food-contact criteria.
Traceability & documentation — batch records, process logs, and test reports for regulatory review.
The result?
Post-consumer rigid plastics — like HDPE, PP, and PET — can safely return to food-contact applications without compromising performance or safety.
Cleaner input. Smarter processing. Safer output.
That’s how POLYTEC helps close the loop for a more sustainable, circular future.
Post time: Oct-31-2025