Processing of Post-Commercial Films | LLDPE & LDPE
A Second Life for Films.
A Second Life for Films.

Processing of Post-Commercial Films | LLDPE & LDPE

When recycling post-consumer films, one of the biggest challenges lies in washing and drying. Labels and glue need to be removed completely, and since the LLDPE-share is relatively high, the drying process requires additional attention and know-how. Only when all of these are addressed the right way films can be given a second life.

LLDPE & LDPE Films | Post-Commercial

In contrast to post-consumer film, post-commercial film has a relatively low contamination level. Instead of strong odours and grease, the challenge here is to remove labels and glue. In addition, Post-consumer films contain a relatively high proportion of stretch (LLDPE), are relatively thin and have a low bulk density.

The Recycling Solution

As a rule, the aim of reprocessing post-consumer films is to produce new film packaging from the recyclate. Labels and adhesives must therefore be thoroughly removed, especially for the downstream extrusion process - this usually requires a high friction and, optionally, a hot wash. When planning the drying processes, the high proportion of stretch film in particular must be taken into consideration.

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"Our New 'Plastics Recycling' Business Unit Was Perfectly Supported by the Lindner Project Engineers from Start to Finish."

Oriol Llorens

Managing Director of Llorens | GMR, Barcelona

Post-Consumer

LLDPE & LDPE Films

Post-commercial film refers in general to transparent plastic films with a high stretch content, which are recovered from supermarkets and other businesses. These soft films are often contaminated with organic matter and paper labels, which must be removed and separated in a complex procedure. Drying thin stretch wrap poses a special challenge and is handled efficiently by a centrifuge from LINDNER’s Loop Dryer series. The goal is to produce a granulate for subsequent extrusion that is as transparent as possible and free of contaminants, with the same market quality as new material.