SÜDPACK Develops Mono-PE Packaging Designed for Plastic Recycling
Photo Credit: SÜDPACK
SÜDPACK Medica has developed a polyethylene-based sterile barrier packaging solution for sensitive life science applications, offering an alternative to conventional films made from polyethylene and polyamide. The new mono-PE structure is designed to protect process bags used in cell culture and bioprocessing during transport, storage and handling, while remaining compatible with established polyethylene recycling streams.
According to SÜDPACK’s October 22 announcement, the tubular packaging is intended for applications where mechanical strength and material safety are critical. Conventional PE/PA/PE films combine polyethylene’s sealing and processing properties with polyamide’s strength, but multi-material structures can complicate recycling. The new design removes the need for polyamide and adhesive agents used in conventional structures, reducing the number of material types in the packaging.
Developing a single-material alternative required adjustments to material selection and film production. SÜDPACK said it screened raw materials and optimised its coextrusion process to achieve mechanical performance and barrier properties comparable to conventional PE/PA/PE films. Internal tests found that the new film offers puncture resistance, flex-crack resistance, reliable sealing and processing properties, as well as high transparency. The company also said the solution was optimised to meet cytotoxicity criteria and reduce concerns about substances migrating from packaging into sensitive applications.
The material design has implications for both packaging safety and end-of-life handling. By avoiding polyamide and certain other components used in conventional structures, the solution is intended to reduce potential sources of migration while making the packaging more compatible with existing PE recycling systems. SÜDPACK’s tubular bags are manufactured in ISO Class 7 clean rooms in Coulmer, among other facilities.
According to SÜDPACK Medica, an internal assessment using CHIRA software calculated a 100% recyclability rate for the mono-PE structure. A screening life cycle assessment found that its CO₂-equivalent emissions were more than 50% lower than those of an equivalent PE/PA/PE structure. These results relate to the reference systems and assumptions used in the company’s assessment; they should not be interpreted as evidence of actual collection or recycling rates.
The development comes as packaging manufacturers face pressure to balance product protection, regulatory requirements and material recovery. For pharmaceutical and bioprocessing applications, changing to a simpler material structure is not straightforward because packaging must also withstand demanding handling and protect sensitive contents. SÜDPACK’s solution offers another option for manufacturers considering packaging designs that better align with existing recycling streams, although real-world recovery will still depend on collection systems and the suitability of local recycling infrastructure.
