Page 64 - Plastics News July 2019

Brückner Maschinenbau Technical innovations for the K 2019

Brückner Maschinenbau 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
For the 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 m and an output of 3 t/h, or a working width of 8.7 m 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 fulfil the highest
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 cater, for example, for an improved adherence during
metallising 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 ambitious objectives for
a 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,
we will still need plastic packaging that is produced in a resource-saving way.

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:
• New high-temperature concept for BOPP capacitor film – this 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

64
Plastics N 66
Plastics News July 2019ews July 2019