ExxonMobil and Reifenhäuser unveil PCR-based stretch hood film

ExxonMobil Signature Polymers and Reifenhäuser have developed a stretch hood film incorporating 35% household-sourced PCR content suitable for high-performance packaging. 

Reifenhäuser’s EVO Fusion line enables the solution’s production. The twin-screw technology is said to provide the intense shearing, thorough homogenization, and volatile extraction needed to process lower-quality PCR materials into a high-quality film.

The film uses ExxonMobil Signature Polymers resins. The 5-layer film formulation features Exceed Tough+ m 0512 high-performance PE for its “excellent bubble stability, good openability features, and high holding force.” 

The Vistamaxx 6102 performance polymer is said to facilitate PCR incorporation by improving film toughness. The companies share that the Vistamaxx polymer content was kept less than 15% for potential compatibility with the design for recyclability guidelines.

“This achievement underscores the power of combining Reifenhäuser’s advanced machine technology with the material innovation behind ExxonMobil Signature Polymers. Through close collaboration across the value chain, it was demonstrated that even lower-quality, household-sourced PCR can be transformed into a high-performance packaging solution,” say the companies.

Transforming PCR

The PCR resin (Systalen LD-C12200) from Der Grüne Punkt is derived from post-consumer waste collected through Germany’s recycling system. This PCR fraction is blended with Exceed Tough+ m 0211, a low-MI high-performance PE that can act as a gel grinder, enhancing film performance and optics.

Reifenhäuser’s twin-screw extruder technology allows thorough mixing and homogenization of PCR blended into virgin resin(s). The companies say the shear action can break down gels and distribute them evenly, lowering the risk of film failure during the stretch hood application. 

Moreover, the EVO Fusion line is equipped with an in-line degassing system that eliminates volatiles, ensuring a bubble-free film that is said to be capable of withstanding the high mechanical stress of industrial packaging.

The film was tested on the Lachenmeier hooding system, where it was assessed with key performance metrics, including friction control, tear resistance, and load retention. The companies share that the film delivers “good holding force, elastic recovery, and tear propagation resistance to ensure secure load containment and help protect goods during transit.”