Extrusion International 4-2019

PREVIEW 48 Extrusion International 4/2019 Brückner Maschinenbau is working on a means to make films with the highest possible recycling capabili- ties producible on film stretching lines. The focus is on mono-material film with superior mechanical and opti- cal 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 opti- mal 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 im- Battery Separator Film Production Line New Line Concept for Single-Origin Packaging Solutions proved adherence during metallising and excellent bar- riers 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 cir- cular 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 cli- mate 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 be- coming 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 wa- terproof, but also environmentally friendly in pro- duction • Biaxially oriented polyester films (BOPET) for optical applications. Brückner’s еnew, patent pending Relax System ensures homogenous film properties and thus high film quality and better processability • BOPI (biaxially oriented polyimide) is perfect for flexible optical applications, e.g. flexible displays.