Many APET sheet extruders purchase reclaimed PET flake from outside sources, which may require special handling precautions depending upon the history of the material.
There are several challenges associated with reusing the in-house generated flake that must be addressed, such as:
1. Conveying and flow characteristics of APET flake.
2. Fines generated by granulating and handling the APET flake.
3. Mass-flow characteristics of the APET flake.
4. The complications associated with drying the APET flake to the recommended final moisture level of 50 ppm or less.