From the Sector

At Chinaplas 2025, the Reifenhäuser Group will present its latest technological innovations for the efficient and sustainable production of plastic films. The extrusion specialists will showcase at Shenzhen World Exhibition & Convention Center from April 15 – 18 solutions that address the key challenges of today’s plastic industry: reducing resource consumption, increasing recyclability, and making production more autonomous and efficient. Meeting these demands requires advanced production technologies that Reifenhäuser already offers today.

A central focus at the show will be the use of Machine Direction Orientation (MDO) technologies for producing fully recyclable mono-material films with performance and cost-effectiveness equivalent to conventional multi-material structures.

Marcel Perrevort, CSO of the Reifenhäuser Group, explains: “In the flexible packaging sector, we are currently seeing a huge trend away from conventional and non-recyclable mixed material laminates towards fully recyclable mono-material composites, both for blown and cast films. Our state-of-the-art MDO stretching units enable enhanced mechanical properties for all-PE or all-PP films. Thus, PET films commonly used in material composites can be replaced. By downgauging, we also reduce production costs to a competitive level, making recyclable films a profitable choice.”

MDO for blown film lines
With the EVO Ultra Stretch MDO unit for Reifenhäuser’s blown film lines manufacturers produce all-PE mono films for applications such as high-barrier food pouches. Due to the stretch process film thicknesses of 18μm (with properties of a 25μm product) and less can be achieved, keeping production costs within the range of conventional films. With the patented integration of the MDO unit directly into the haul-off, the film is stretched in the ideal phase of the process – using the first heat – for maximum efficiency and film stability. Furthermore, the all-PE film achieves the required barrier effect with an EVOH content of less than five percent, fully meeting the criteria for recyclability. At the same time, Ultra Stretch enhances the performance of the EVOH barrier layer while reducing material usage, delivering cost and sustainability benefits.

UK’s Optima 3D is delivering its weaving technology to the USA, for installation at the University of Maine’s Advanced Structures and Composites Center (ASCC).

The 3D weaving system consists of an Optima 3D Series 600 shuttle weaving machine with an integrated 2,688-hook Stäubli SX jacquard and harness. It is also complemented by Optima’s compact warp delivery creel and an associated pirn winder for shuttle bobbins and a spool winder for creel spools.

Optima’s looms offer many advanced features over conventional weaving machines, particularly in terms of versatility, as a result of the comprehensive use of digital control systems allowing rapid parameter and sequence changes, coupled with an innovative shuttle system.

The ASCC is certainly no stranger to advanced technology, or indeed ambitious composite projects – in 2019 it received no less than three Guinness World Records, for the world’s largest prototype polymer 3D printer, the largest solid 3D-printed object, and the largest 3D-printed boat. In its latest project it has further introduced BioHome3D – the first 3D-printed house made entirely with bio-based materials developed in a partnership with Oak Ridge National Laboratory. The 182-square-metre prototype features 3D-printed floors, walls and roof which are fully recyclable and highly insulated with 100% wood insulation and customisable R-values. Construction waste was nearly eliminated due to the precision of the printing process.