Filter material

A filter material for an air filter may include a substrate layer on an inflow side and a fine-fiber layer on an outflow side relative to a flow direction. The filter material may include a connection region arranged between the substrate layer and the fine-fiber layer. The substrate layer, connecti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Neubauer Bernd, Renz Birgit, Disson Ralf, Steppe Markus
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A filter material for an air filter may include a substrate layer on an inflow side and a fine-fiber layer on an outflow side relative to a flow direction. The filter material may include a connection region arranged between the substrate layer and the fine-fiber layer. The substrate layer, connection region and fine-fiber layer may include pores having an aggregate degressive pore size with respect to the flow direction. A combined thickness of the substrate layer, connection region and fine-fiber layer may be at least 0.35 mm. The substrate layer may include a cellulose material and have an impregnation of resin disposed along the inflow side. The resin may amount to approximately 22% by mass of the substrate layer.