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14.01.2019 Inner liners for FIBCs

The Styria, Austria, plant of Mondi – the global packaging and paper group – is investing in the production of safe, clean and environmentally friendly inner liners for flexible intermediate bulk containers. “Mondi’s FIBC liners ensure clean food processing and are ideal for milk powder, other foods, pharmaceuticals and additional applications,” noted Stefan Pfundner, business solution manager, Mondi technical films. “Not only do Mondi’s FIBC liners advance customers’ processes and logistics,” he explains, “but their superior quality reduces the amount of raw materials used and offers an environmentally friendly alternative to traditional liners.” Now, with its latest innovation, Styria is facilitating the elimination of aluminium inner layers in FIBC liner films.

Mondi is installing new equipment at Styria to make high-barrier, side-gusseted tubes for FIBCs. This latest equipment upgrade will make Mondi Styria the only plant of its kind able to produce these types of tubes in such food-clean conditions. That facility has earned three straight “AA” certifications per the British Retail Consortium (BRC) global standard for packaging and packaging materials. The new side-gusseting device will enable Mondi to provide converters with tubes up 4400mm in total circumference. It will come equipped with a special HEPA air filter to clean the air within the blown-film bubble to remove bacteria and particulates, yielding nearly sterile conditions, Pfundner said.

Liners produced from high-barrier, side-gusseted tubes minimise the risk of contamination on the inside, compared with liners produced from flat film or foil, such as aluminium liners, he added. Mondi also can adapt the barrier properties according to the needs of the product, to protect against odours, moisture and the like. With such tubes offering a viable alternative to aluminium liners and other kinds of laminate structures, FIBC packagers potentially are able not only to save money, but also to reduce their carbon footprint.

By incorporating permanent antistatic additives to both the inside and outside of the film, Mondi can greatly reduce the dust-explosion hazards in combination with Type B bulk bags associated with filling or discharging potentially explosive powders

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