Freudenberg launches fully synthetic wetlaid nonwovens
Wetlaid materials, manufactured from various types of polymer-based fibers, are particularly designed for use in filtration and other industrial applications.
Wetlaid nonwoven for reverse osmosis membranes. Source | Freudenberg Performance Materials
Freudenberg Performance Materials (Weinheim, Germany) is unveiling a 100% synthetic wetlaid nonwoven product line made in Germany. The new materials can be manufactured from various types of polymer-based fibers, including ultra-fine microfibers, and are designed for use in filtration applications as well as other industrial solutions.
Customers in the filtration business can use Freudenberg’s fully synthetic wetlaid nonwovens in both liquid and air filtration, marketed under the Filtura brand. Applications include reverse osmosis membrane support, support for nanofibers or polytetrafluoroethylene (PTFE) membranes as well as oil filtration media. The materials are also suited to use in the building, construction and composites industries.
Freudenberg’s fully synthetic wetlaid nonwovens can be made of polyester, polyolefin, polyamide and polyvinyl alcohol (PVA), using staple fibers of up to 12 mm in length and microfibers as fine as 0.04dtex. In terms of weight, the product range spans between 8-250 g/m² in weight. Freudenberg says that its 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.
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.
