ADSORPTION FILTER MATERIAL WITH INTEGRATED PARTICLE- AND/OR AEROSOL-FILTERING FUNCTION AND ITS USE

摘要

The invention relates to an adsorption filter material with integrated particle and/or aerosol protection and with protective performance against biological and/or chemical noxious substances, in particular biological and/or chemical warfare agents, the adsorption filter material including a multilayered construction comprising a carrier layer, an adsorption layer facing the carrier layer and preferably fixed to the carrier layer, and optionally a covering layer disposed on that side of the adsorption layer which is remote from the carrier layer, the adsorption filter material additionally including a particle- and/or aerosol-filtering layer preferably disposed between the adsorption layer and the covering layer, the particle- and/or aerosol-filtering layer being constructed as an air-permeable textile fabric formed from fibres having fibre diameters in the range from 10 nm to 5 µm, preferably 100 nm to 1.1 µm and preferably having a basis weight of 1 to 75 g/m2, in particular 2 to 50 g/m2, more preferably 5 to 15 g/m2. The adsorption filter material is particularly useful in NBC protective materials of any kind (such as NBC protective apparel for example) and in the manufacture of filters.