Fitments and closures are addressed in the Closures section of this document. Other attachments to film packaging should be minimized. If attachments are used, they should be polyethylene to be compatible with recycling.
See Requires Test Results section
Metal and metal containing attachments
Metal parts are extremely problematic in two areas. First, they alarm metal detectors that are employed at the beginning of the recycling process to protect machinery. When this occurs, the entire package containing the offending part is discarded and landfilled. Secondly, if they happen to pass through the process into the extruder they can damage the extruder or quickly blind a melt filter causing a pressure upset which automatically shuts down the process for safety.
REQUIRES TEST RESULTS
Attachments enter the film recycling process along with the film they are attached to. They enter the extrusion stage of the process with the base material where they are either melted and blended with the PE or remain solid and are filtered from the melted product. Testing must show that the material is removed from the PE stream or has no adverse effect on the recycled PE in future uses.