Oerlikon Nonwoven
New meltblown and spunbond technology at the Filtxpo 2020

Meltblown technology is a method for producing fine, separating filter media made from manmade fibers. It is characterized by its constant melt pressure distribution and consistent dwell time across the entire width of the spinning beam. Furthermore, the novel guidance and distribution of the process air outside the coat-hanger distributor offered by the Oerlikon Nonwoven technology prevents so-called hotspots, which overall ensures homogeneous nonwovens properties and basis weights even in the case of delicate raw materials.
The filter efficiency can be increased by means of so-called electro-charging – where the nonwovens are electrostatically charged. Users can choose from a number of variation possibilities and set the appropriate charging method depending on the filter application, allowing the Oerlikon Nonwoven charging unit to also be used for the manufacture of EPA and HEPA class filter media.
Regarding spunbonds, the company is presenting its segmented spin packs, which guarantee even melt distribution and polymer dwell time. The new forming section ensures improved formation evenness across the entire width, even in the case of high spinning speeds, special polymers and polymer combinations. In addition to this, the newly-designed system also ensures that nonwovens only require minimal edge trimming at the end of the production process. The newly-developed mixed fiber technology enables the combining of various filament cross-sections and polymers, in order to set ideal filtering and pleating performances, for example.