Brückner Maschinenbau to show technical innovations at K 2019

New developments in speciality films

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Brückner high performance stretching lines
Brückner high performance stretching lines

Brückner Maschinenbau, a provider of film stretching technology, is working on a means to make films with the highest possible recycling capabilities producible on film stretching lines. The focus is on mono-material film with superior mechanical and optical properties, which will be able to substitute previous multi-layer films made from different materials. These are ideal for the use in new, single-origin packaging and guarantee good sortibility in waste separation and optimal recycling.

Combination of BOPE and BOPP production

During K 2019, Brückner will introduce two completely new line concepts for the
production of BOPE films (biaxially oriented polyethylene). Film producers can
chose between a working width of 6.6 meter and an output of 3 t/h, or a working width of 8.7 meter and an output of 5 t/h. These are 5 layer concepts for an extended range of films.

The new lines also have the flexibility to produce BOPP films: Specialities such as
UHB films and coated films for high-barrier uses alongside conventional packaging
film. As the demand for innovative BOPE films is only now starting to develop, film
producers will be able to react swiftly and flexibly to market trends.

New inline coater

Even if recycling stands at the forefront of a circular economy, new mono-material
structures must fulfill the demands and must not be inferior to previous
packaging films. This is why Brückner has developed a new inline coater for all
BOPP and BOPE lines, installed in the line before the transversal stretching, it makes the production of extremely thin functional layers within the nano-range
possible.

Due to the extreme thinness, the layers don’t disrupt the sorting and recycling, but
allow, for example, for an improved adherence during metallizing and excellent
barriers in combination with the equally thin but effective aluminium oxide coating.

The focus remains on raw material and energy saving

Despite all developments for the rapidly developing circular economy, Brückner
Maschinenbau is keeping to its own objectives for decreasing raw material usage and an increasingly minimal energy consumption during film production. Despite all legitimate demands about recycling and reusability, the challenge of climate change and the reduction of the carbon footprint throughout the entire packaging production chain must not be forgotten. In the fight against climate change, plastic packaging that is produced in a resource-saving way will still be needed.

Speciality film lines

Alongside stretching lines for the production of packaging films, machines for
speciality films are becoming more important in Brückner’s portfolio. The company
will be presenting various innovations for the K 2019 including new high-temperature concept for BOPP capacitor film, it is interesting, for example, for the use in electrical components installed near motors, lines for the production of stone paper based on BOPP or BOPE with a calcium carbonate proportion of over 60%: not only with good printability and waterproof, but also environmentally friendly in production.

Also on display will be biaxially oriented polyester films (BOPET) for optical applications, Brückner’s new, patent pending Relax System ensures homogenous film
properties and thus high film quality and better processability, BOPI (biaxially oriented polyamide) is perfect for flexible optical applications, e.g. flexible displays. The stretching ovens and systems need to be suitable for very high temperatures of up to 400°C, is in Brückner’s new line concepts.

Brückner Maschinenbau will also display optimised simultaneous LISIM technology
for less edge trim and thus higher film gain, and improved mechanical properties such as puncture resistance and optimised pore distribution for a longer lifespan and for more flexibility in the stretching profile adjustment during operation. Newly developed and patented relax chain for improved film properties in regard to battery safety, 5.5 meter line width – globally unique for higher efficiency, continued development of its own patented production process, the Evapore process, offering a more environmentally friendly alternative for the production of membrane films will also be displayed.

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