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Sustainability is currently an important, if not the most important driver in the flexible packaging market. W&H meets market requirements with machine technology that enables high-quality production of sustainable packaging solutions. Together with partners, W&H developed a whole spectrum of example products that are either fully recyclable or contain shares of recycled material. The sample products include two monomaterial laminates, two films with recycled material and a high-barrier film, which uses water-soluble intermediate layers to separate incompatible materials.
The products demonstrate what is possible in the area of sustainability: “We wanted to show the wide range of options available in this field and how these can be efficiently produced using both cast film and blown film processes on W&H lines”, explained Dr. Lennart Ederleh, Head of Technical Sales Blown Film at W&H. “We worked with over 20 partners from the entire value chain to develop the solutions. We tested downstream processes such as printing and converting in our own technology centers”, explained Dr. Torsten Schmitz, Head of Business Unit Extrusion.
The sustainable products were presented for the first time to a large audience at the K trade fair 2019.
With two different versions of stand-up pouches W&H presents a sustainable packaging solution based on the use of monomaterial laminates. The pouches are made of PE and PP. Thanks to Machine Direction Orientation (MDO), the VAREX II blown film line can produce stand-up pouches from 100% PE material that offer the same functionalities as conventional films based on a material mix of PET-PE. Both the MDO-PE film with 25 µm and the PE sealing film with 110 µm can be produced on the same line. The edge trimming of the MDO-PE film is regranulated and integrated into the production process of the sealing film. On the FILMEX II cast film line, W&H is demonstrating a stand-up pouch made of all-PP. The laminate structure consists of 20 µm BO-PP film and a 60 µm Cast-PP film with an integrated thin, recyclable barrier coating.