Film Scrap Recycling/Reclaim Options

摘要

Film scrap can be very difficult to reprocess due to varying forms and contamination levels, as well as its light bulk density and poor feed characteristics, both before and after size reduction. We will take a look at all currently available technology for reprocessing film scrap, describe each process and review the Pros and Cons. We will then draw our conclusions and discuss proper application of each process. Technologies reviewed include: a) Simple edge trim re-pelletizing systems, b) Fluff/regrind direct reclaim systems for feeding ground scrap directly back to the extruder, c) Film scrap densification systems for producing agglomerated particles for easier blending and feeding, d) Traditional re-pelletizing systems where scrap is pre-size reduced, extruded and pelletized, and e) Combination re-pelletizing systems using specialty extruders, with integral shredder/compactors.