Mondi continues to innovate with sustainable solutions, with next generation of Bag-in-Box technical films

Tue, 9. October 2018
Functional films
by Mondi Newsroom

Downgauging innovations yield thinner, more sustainable BIB films


Vienna, 09 October 2018 - One word, more than any other, is guiding Bag-in-Box (BIB) film purchasing decisions today: sustainability. Whether for wine, fruit juice or dairy products, the people in the buyer center –product and packaging managers, technical engineers and purchasing agents – are tasked with finding sustainable packaging solutions. 

Fortunately for them, the Mondi Styria plant in Austria, has racked up more than 60 years of experience as market leader and technology innovator. When it comes to multilayer technical films that are thinner, lighter and more sustainable – and do not sacrifice any performance properties – the Mondi experts are always extending the boundaries of technological advancement. Now, they are launching a pair of next-generation films developed for multilayer BIB products used to package liquid food products and more.



Experts in barrier films for bag-in-box applications
Boxed fruit juice or wine is one of the main applications for this innovative packaging.

Introducing … Styria Form Bar 50

“We have now determined it is possible to replace the usual 66- or 70-micron coextruded barrier film structures with a 50-micron coextruded barrier structure, and we are the first company to be able to offer such a product,” explains Günter Leitner, Managing Director at Mondi Styria. “Downgauging in this manner results in the use of about 25% less material while also reducing transport weight and hence the overall carbon footprint.” 

A current customer is already running trials of this new product, and says it has experienced no negative impact on machine performance and that no equipment changes have been needed to successfully run the film, Leitner notes. “Since this thinner film also yields more running metres per reel this leads to enhanced efficiency and productivity for our customers.”


… and Styria Form Bar 90 DW

Separately, Mondi now has also found a way to combine what is the industry-standard, two-ply Bag in Box constructions comprising a 70-micron coextruded barrier layer plus a 40-micron polyethylene layer into one film that measures only 90 microns thick –– a reduction of nearly 20%. Mondi successfully combines the properties of both PE-Film and barrier film in one 90 microns thick coextruded barrier film. 

“Mondi, once again, is the first and only supplier of technical BIB films able to offer thiskind of extruded film, which enables our customers to create mono-ply instead of two-ply bags,” says Leitner. 

In addition to the previously noted sustainability advantages, this latest innovation greatly simplifies matters for customers, eliminating a step from the converting process, and allowing users to buy and store only one type of film instead of two. 

Customers also will benefit from reduced machine setup time due to having to change out only two reels instead of four, and having to change two reels less frequently. All of this translates into greater productivity for the converter. 

Additionally, both new films are suitable for both hot-fill (up to 85º C) and cold-fill applications, again offering increased convenience and flexibility to the users.

“These advances continue to raise the bar, to the benefit of our customers,” says Leitner, “and we will continue to strive to increase the functionality, performance and convenience of our technical films to improve the users’ experience.” 

For more details about Mondi’s latest film innovations, contact us at [email protected]



Judith Wronn
Senior Communication Manager, Mondi Consumer Packaging
Tel: +49 151 1771 4692
Email: [email protected] 

Josina van der Velden
Tel: +31 164 317 014
Email: [email protected]


About Mondi

Mondi is a global leader in packaging and paper, delighting its customers and consumers with innovative and sustainable packaging and paper solutions. Mondi is fully integrated across the packaging and paper value chain - from managing forests and producing pulp, paper and plastic films, to developing and manufacturing effective industrial and consumer packaging solutions. Sustainability is embedded in everything Mondi does. In 2017, Mondi had revenues of €7.10 billion and underlying EBITDA of €1.48 billion.

Mondi has a dual listed company structure, with a primary listing on the JSE Limited for Mondi Limited under the ticker MND, and a premium listing on the London Stock Exchange for Mondi plc, under the ticker MNDI. Mondi is a FTSE 100 constituent, and has been included in the FTSE4Good Index Series since 2008 and the FTSE/JSE Responsible Investment Index Series since 2007.