From the Sector

Freudenberg Performance Materials (Freudenberg) is unveiling a new 100 percent synthetic wetlaid nonwoven product line made in Germany. The new materials can be manufactured from various types of polymer-based fibers, including ultra-fine micro-fibers, and are designed for use in filtration applications as well as other industrial applications.

Customers in the filtration business can use Freudenberg’s new fully synthetic wetlaid nonwovens in both liquid and air filtration. Applications include reverse osmosis membrane support, support for nanofibers or PTFE membranes as well as oil filtration media. The new materials are suited to use in the building & construction industry or the composites industry.
For filtration applications, the new fully synthetic wetlaid nonwovens are marketed under the Filtura® brand.

Versatile and flexible manufacturing
Freudenberg’s fully synthetic wetlaid nonwovens can be made of polyester, polyolefin, polyamide and polyvinyl alcohol (PVA), using staple fibers of up to 12mm fiber length and microfibers as fine as 0.04dtex. In terms of weight, the product range spans weights of between 8g/m² and 250g/m². Freudenberg’s flexible wetlaid manufacturing line has the capability to combine various thermal and chemical bonding technologies. The materials have high precision in weight and thickness as well as a defined pore size and high porosity.

Wetlaid capabilities for various applications
In addition to its fully synthetic range, Freudenberg can also incorporate glass fibers, viscose and cellulose. General industry applications for Freudenberg wetlaid nonwovens are surfacing veils for glass-fiber reinforced plastics, compostable desiccant bags, battery separators, acoustics, heatshields, and apparel applications such as embroidery substrates.

• JUMBO-Textil offers elastic high-tech braids – produced on high-tech systems

Developing narrow textile solutions for our customers – quickly, flexibly and precisely – that is our claim. For us and for our technology. Because first-class industrial solutions require first-class technology. Highly automated and digitally controlled. Technology like that found in our variation braider from Herzog – the high-performer among modern braiding machines. JUMBO-Textil is the first narrow textile manufacturer ever to produce elastic hole cords on the special system.

High-performance system for extremely stable textile components
The special system combines sophisticated bobbin lace technology with digital control and thus enables the production of highly complex, individually specifiable braided structures. The variation braider's technology ensures an uninterrupted fibre course across all branches. This not only allows individual, idiosyncratic geometries, it also and above all helps with the stability of the components. This is because where other methods create branching points that are susceptible to breakage due to laser cutting, seams or knots, the variation braider simply braids through the branched strands. As the fibre course is not interrupted in braided branches, the resilience of the textiles is significantly increased. And individual braids are created for very different applications.

Bobbin lace technology for highly complex structures
Unlike in classical braiding systems, the impellers of the variation braider are arranged in a square. Up to eight different strands can be braided and interlaced with the textile all-rounder. All bobbins can be programmed separately and thus the bobbin lanes can be combined variably and individually. JUMBO-Textil also produces tubular braids with precisely defined braided openings, triaxial braids and highly complex preforms with the variation braider. The geometries of the narrow textiles range all the way to net structures. For braided cables, we create stable connections in the core-sheath braiding by weaving the core and the protective sheathing, which provides protection especially at the turns: there is no longer any undesired core and sheath slippage.

Individual braid architectures – for automotive, outdoor and more
Complex non-elastic cords from the variation braider have been in operation at JUMBO-Textil for a long time. For hole cords – or bifurcation cords (from the Latin: furca, the fork) – the bobbin points are individually programmed so that the arrangement and length of the branching precisely meet the requirements. It is used, among others, in the automotive sector, in the construction industry and in the outdoor sector to hang or unhang elements without using metal.

Elastic hole cord from the elastics specialist
The elastic hole braids by JUMBO-Textil are new on the market. "The variation braider offers us fantastic possibilities: we can pre-configure what we want to braid and are completely free to do so. The repeat is computer-controlled," explains Holger Vehring, Project Engineer at JUMBO-Textil. "A seamless braided cable harness tubular that organises the cable mess (for automotive), braided hoses with defined openings for conductive elements in smart textiles or rehab applications, as tensioning elements in backpacks or functional clothing – the possible applications are vast. Thanks to this technology, textile – i.e. lighter, quieter and more flexible – components can be used for numerous applications in which metallic materials were previously used due to the fragile branching points."