Ecotrace enables Südpack to analyse the entire life cycle of its products, as well as customer concepts, in terms of their environmental impact. These calculations are based on a cradle-to-grave approach, which takes not only greenhouse gases (CO2e) into account, but also factors like fossil resource consumption, eco- and human-toxicity, as well as various energy sources and end-of-life options, within defined system limits. This is an important approach because around 10% of the environmental impact of Südpack’s flexible films occurs at the end of their life cycle (assuming an average recycling rate of 48% and a thermal recovery rate of 52%).
In collaboration with Sphera, Südpackrecently conducted an LCA study in accordance with ISO 14040/44 for its Flow Pack PurePP solution – to assess the potential environmental impact of these innovative high-performance films from the company’s Pure-Line range. The materials in question are flexible film laminates used to produce flow packs for various applications, primarily in the food sector. They are made from PP and, due to their mono-material structure, have a recyclability rate of 92% according to the cyclos-HTP institute.
For the end-of-life analysis, a current German recycling mix served as the baseline scenario and was compared with the results from an analysis of 100% mechanical recycling, 100% chemical recycling, and 100% thermal recovery. Additionally, the study examined the impact of different energy sources used in production, as well as the incorporation of recycled content into the granules.
In the baseline scenario, 1 m² of Flow Pack PurePP generates 246 g CO₂e/m² over its entire life cycle. As expected, incinerating the Flow Pack at the end of its life results in the highest emissions, at 293 g CO₂e/m², while mechanical recycling reduces this by approximately 50 g CO₂e/m². Therefore, by using mechanical or chemical recycling as an alternative to thermal recovery, the ecological footprint is significantly improved. Even with chemical recycling, the difference compared to thermal recovery is around 50 g CO₂e/m². If renewable electricity is used, CO2e emissions are reduced even further – by more than 5%. Moreover, mechanical recyclate performs better than chemically recycled input materials, as the latter require more energy during production.
Overall, the results show that significant environmental impacts occur throughout the life cycle of Flow Pack PurePP, highlighting the need for fact-based assessments to make informed decisions on sustainability criteria.
