Siegwerk, Borouge, and TPN Food Packaging (TPN) have collaborated on a fully recyclable, mono-material barrier stand-up pouch said to provide robust protection and superior functionality.
The solution is the first co-development under the broader Siegwerk-Borouge partnership, with TPN handling production of the new de-inkable pouch. The pouch provides circularity through de-inking technology that enables high-quality recycled polyethylene feedstock for next-cycle applications.
The solution aims to meet the needs of converters, brand owners, and consumers seeking sustainable, high-performance packaging for oxygen-sensitive, dry products such as nuts and pet food. The new pouch features a full polyethylene (PE) triplex laminate structure incorporating Borouge’s Borstar FB5600, a bimodal high-density PE produced using Borealis’ proprietary Borstar technology, and Anteo PE sealant film with low sealing initiation temperature for high packing speed.
The mono-material pouch is said to maintain high stiffness, mechanical strength, seal integrity and printability, providing a drop-in replacement for traditional multi-material laminates without compromising performance. Siegwerk’s advanced oxygen barrier coating, CIRKIT OXYBAR BC1582, and its de-inking coating, CIRKIT CLEARPRIME, provide low oxygen transmission and enable efficient de-inking for recycling end-of-life printed materials.
Utilizing TPN’s rotogravure printing, the MDO-PE printing layer reportedly achieves high stiffness and flatness at production speeds of ~200m/minute. The resulting oxygen transmission rate (OTR) is below 1cc/m2/day at 23°C at 50% relative humidity, comparable to metallized PET.
In August, Siegwerk formed a strategic partnership with Ravenwood Packaging to accelerate the adoption of ‘sustainable’ linerless label solutions across the packaging industry, hoping to reduce material waste and transportation costs. The partners state that this technology offers benefits such as increased label yield per roll, reduced storage and transportation costs and improved sustainability by minimizing landfill waste.
In related news, Borealis has unveiled its new Borstar Nextension Polyethylene (PE) platform, said to deliver superior toughness, sealing performance and enhanced processability for packaging solutions that enable downgauging, improve cost efficiency and support design for recycling. The new technology enables mono-material solutions that can replace existing multi-material products, making them easier to sort and recycle at end of life.
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