Filter material, useful as filter e.g. cabin air filter, circulating air filter and/or vacuum cleaner filter, comprises a carrier layer and an adsorption filter layer, which is formed by hot-melt fibers charged with adsorber particle

摘要

Filter material comprises a carrier layer and an adsorption filter layer, which is formed by hot-melt fibers charged with adsorber particle, where the hot-melt fibers contains charge carrier and/or charge stabilizer and exhibits a charge and/or is rechargeable. An independent claim is included for preparing a filter material comprising spinning the hot-melt fibers that is charged with adsorber particle and applying on a carrier layer, where the hot-melt fibers are electrically charged during the spinning.