Tetra Pak tests fiber-based barrier to replace aluminium layer

Reducing carbon footprint while making post-consumer cartons more attractive for recyclers

67
Tetra Pak
Tetra Pak's fiber-based barrier to replace aluminium layer. Photo Tetra Pak

Following the successful completion of a 15-month commercial technology validation of a polymer-based barrier replacing the aluminium layer, Tetra Pak is now moving to the next level of development – testing a fiber-based barrier that is a first within food carton packages distributed under ambient conditions.

This step marks yet another breakthrough in the company’s long-term roadmap towards developing an aseptic package that is fully renewable, fully recyclable and carbon-neutral.

The aluminium layer currently used in food carton packages plays a critical role in ensuring food safety; and even though https://packagingsouthasia.com/application/the-plastic-straw/it is thinner than a human hair, it contributes to a third of the green-house gas emissions linked to base materials used by Tetra Pak.

With a view to reducing this climate impact, a commercial technology validation was conducted in Japan starting late 2020, using a polymer-based barrier to replace the aluminium layer. This helped to understand the value chain implications of the change, and to quantify the carbon footprint reduction. It also confirmed adequate oxygen protection for vegetable juice, while enabling increased recycling rates in a country where recyclers favor aluminium-free cartons.

Incorporating these learnings, the company is now testing a new fiber-based barrier, in close collaboration with some of its customers. A first pilot batch of single serve packs featuring this industry-first material are currently on shelf for a commercial consumer test, with further technology validation scheduled later in 2022.

This initiative underscores Tetra Pak’s approach to design for recycling, where increasing the paper content is critical, and also supports end-user expectations. Based on recent global research 1 , approximately 40% of consumers confirmed they would be more motivated to sort for recycling, if packages were made entirely from paperboard and had no plastic or aluminium.

Gilles Tisserand, vice president Climate and Biodiversity, Tetra Pak, comments, “Early results suggest that the package with a fiber-based barrier will offer substantial CO2 reduction when compared to traditional aseptic cartons 2 , together with comparable shelf life and food protection properties 3 . We believe this development will therefore act as a breakthrough in reducing climate impact. In addition, cartons with higher paper content are also more attractive for paper mills; thus, this concept presents clear potential for realizing a low carbon circular economy for packaging.”

Eva Gustavsson, vice president Materials and Package, Tetra Pak adds, “Addressing complex issues such as climate change and circularity requires transformational innovation. This is why we collaborate not just with our customers and suppliers, but also with an ecosystem of start-ups, universities and tech companies, providing us access to cutting edge competences, technologies and manufacturing facilities.

“To keep the innovation engine running, we are investing Euro 100 million per year and will continue to do so over the next 5 to 10 years to further enhance the environmental profile of food cartons, including the research and development of packages that are made with a simplified material structure and increased renewable content. There is a long journey ahead of us, but with the support of our partners and a strong determination to achieve our sustainability and food safety ambitions, we are well on our way.”

Tetra Pak is a world leading food processing and packaging solutions company. Working closely with our customers and suppliers, we provide safe, innovative and environmentally sound products that each day meet the needs of hundreds of millions of people in more than 160 countries. With more than 25,000 employees around the world, we believe in responsible industry leadership and a sustainable approach to business.

1 Sustainable Packaging Consumer Research 2021, Tetra Pak’s latest environmental survey, run in summer 2021 and comprising a total of 12,000 consumer interviews based on an online questionnaire in 23 markets: Germany, France, UK, Italy, Saudi Arabia, Turkey, South Africa, China, India, Japan, Australia, Brazil, USA, Mexico, Chile, Poland, Sweden, Spain, Russia, Greece, Serbia, Dominican Republic, Argentina.

2 A one liter Tetra Pak carton package is typically made of approximately 70% paperboard, 25% of polyethylene and 5% of aluminium to protect the product inside.

3 For certain product categories, such as dairy products, the shelf life and food protection properties offered by the fiber-based barrier are comparable to aseptic carton packages that make use of aluminium.

The Covid-19 pandemic led to the country-wide lockdown on 25 March 2020. It will be two years tomorrow as I write this. What have we learned in this time? Maybe the meaning of resilience since small companies like us have had to rely on our resources and the forbearance of our employees as we have struggled to produce our trade platforms.

The print and packaging industries have been fortunate, although the commercial printing industry is still to recover. We have learned more about the digital transformation that affects commercial printing and packaging. Ultimately digital will help print grow in a country where we are still far behind in our paper and print consumption and where digital is a leapfrog technology that will only increase the demand for print in the foreseeable future.

Web analytics show that we now have readership in North America and Europe amongst the 90 countries where our five platforms reach. Our traffic which more than doubled in 2020, has at times gone up by another 50% in 2021. And advertising which had fallen to pieces in 2020 and 2021, has started its return since January 2022.

As the economy approaches real growth with unevenness and shortages a given, we are looking forward to the PrintPack India exhibition in Greater Noida. We are again appointed to produce the Show Daily on all five days of the show from 26 to 30 May 2022.

It is the right time to support our high-impact reporting and authoritative and technical information with some of the best correspondents in the industry. Readers can power Packaging South Asia’s balanced industry journalism and help sustain us by subscribing.

– Naresh Khanna

Subscribe Now

LEAVE A REPLY

Please enter your comment!
Please enter your name here