Films/Flexibles/Bags
Films/Flexibles/Bags Fig. 1: D808 20 µm+paper roasted chicken bags. % shrinkage 22.0 20.0 18.0 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 D808 20 µm MD D808 20 µm TD NTSS 20 µm MD NTSS 20 µm TD 0.0 80 85 90 95 100 105 110 115 120 125 130 Temperature (°C) Fig. 2: Thermal shrinkage (%) with increasing temperature curves for D808 20 µm and NTSS 20 µm films. Fig. 3: Injected containers with NATIVIA IML label. New PLA films for packaging applications Heat, grease and oil resistant PLA film for papaer bags Italian retail chains are always looking for sustainable packaging solutions in response to consumers’ increased desire to reduce the depletion of fossil resources and to fight climate change. Following this trend, Nicoletti SpA, an Italian manufacturer of paper bags for fresh foods, has recently introduced in its portfolio a bag for roasted chickens made entirely of renewable resources. The paper bag is fully laminated with recently developed NATIVIA D808 20 µm film from Taghleef Industries (Ti), and has a transparent window which allows see-through of the packaged products. Unique performance and thermal properties of D808 20 µm film ensure heat resistance of the bag at storage temperatures up to 80 °C. Improved heat resistance was the primary requirement of the film, since the roasted chickens that are cooked every morning in the deli corner need to be kept at a temperature above 65 °C (in bulk) in order to avoid proliferation of microorganisms. Like all NATIVIA films, D808 20 µm provides very good barrier to grease and fatty juices from the foodstuff, protecting the paper packaging against grease penetration. NATIVIA D808 film also shows better heat resistance in terms of lower heat shrinkage and higher values of T g , glass transition temperature, and T m , melting temperature, compared to standard PLA films. The graph plots the thermal shrinkage in percent in MD (machine) and TD (transverse) directions at increasing temperatures for D808 20 µm and standard NTSS 20 µm films. PLA film for In Mould Labels At LabelExpo 2015, Taghleef Industries presented an injected container with an in-mould label produced with NATIVIA NTSS 40 µm. The highly transparent and glossy film offers a bio-based and compostable (according to EU standard EN 13432) solution for injected containers. This joint development project involved Taghleef Industries for the supply of the IML film, Grafiche Seven S.p.A. for the printing of the labels, and Elledi Plast S.r.l. for the injection moulding of the PLA based container for cream cheese. The label was printed using reel fed offset and flexo technology with 6 colors + varnish. Superior stiffness and film flatness ensure print register stability during the printing run, while film surface properties lead to suitable ink adhesion for IML application. Optimal stiffness is also crucial for efficient die cutting. A PLA based resin has been used for the injection moulding of the containers. Taghleef Industries is one of the largest global manufacturers of biaxially oriented polypropylene films (BoPP), cast polypropylene films (CPP), biaxially oriented polylactic acid and biodegradable films (BoPLA). Ti’s brand portfolio includes NATIVIA biodegradable BoPLA, used in many packaging sectors, and demonstrates Ti’s commitment to offering sustainable packaging solutions to the global market. www.ti-fims.com 14 bioplastics MAGAZINE [06/15] Vol. 10
Biobased PE film for label applications Avery Dennison’s (Oegstgeest, the Netherlands) focus on sustainability was in the spotlight at Labelexpo Europe 2015 with the introduction of two biobased polyethylene label films. These new products are the first self-adhesive PE filmic labels with a face stock that includes more than 80 % renewable content. They offer brand owners the opportunity to meet their target on renewable resources in packaging, while continuing to benefit from the functionality and performance of a regular polyethylene label. “Economic growth, natural resource scarcity and an increasing demand for goods and services will all contribute to an uncertain supply of finite non-renewable resources in the years to come,” said Xander van der Vlies, sustainability director at Avery Dennison Materials Group Europe. “With our expanding product range of sustainable label materials – which now includes these biobased PE label films – we can support converters who want to fulfil brand owners’ needs for packaging from renewable resources, while also helping them to provide a differentiating product and drive sales in a fast-growing segment.” The biobased PE self-adhesive laminates are available in a white and a clear version. The resin used for the new biobased PE films is made from Bonsucro ® Certified Sugar Cane, which follows rigorous social and environmental monitoring prior to certification. Both new products offer performance and recyclability comparable to standard PE85 resin. Avery Dennison introduces biobased PE film for label applications. (Photo: Avery Dennison) With the proper precautions and preparation (e. g. the dies should be sharp and not damaged for the die-cutting), these films act as drop-in replacements, meaning converters can substitute conventional PE for a biobased PE label film without investing in new machinery. By using biomass to create a PE label film which contains more than 80% bio based resin, brand owners can reduce their dependency on fossil based packaging materials. The introduction of the bio based film is Avery Dennison’s response to their growing interest in using biobased packaging materials. Thanks to close collaboration between various members across the value chain, it has been possible to bring these biobased PE label films to market. Avery Dennison worked with global resin producer Braskem and Belgium converter Desmedt Labels to prototype and test the biobased PE label at the Belgium facilities of Ecover, manufacturer of ecologically sound cleaning products. This new product is one component in the wider efforts towards achieving Avery Dennison’s 2025 Sustainability Goals, and it demonstrates the way in which environmental improvements can go hand in hand with business success. www.averydennison.com. Think Sustainable M·VERA ® – biodegradable bioplastic With our M·VERA® range of biodegradable plastics (certified to EN 13432), we provide you with customized solutions for your application: • Film Such as shopping bags, biowaste bags or agricultural films • Injection moulding Such as coffee capsules, cutlery or toys • Color, carbon black and additive masterbatches Our team of highly experienced plastic specialists is pleased to help you – contact us! BIO-FED Branch of AKRO-PLASTIC GmbH BioCampus Cologne · Nattermannallee 1 50829 Cologne · Germany Phone: +49 221 88 8894-00 Fax: +49 221 88 88 94-99 info@bio-fed.com www.bio-fed.com bioplastics MAGAZINE [06/15] Vol. 10 15
