FIELD: textiles, paper.
SUBSTANCE: filter element comprises porous non-woven fabric. The fabric keeps its shape and has sufficient rigidity to maintain non-planar configuration. The fabric contains thermoplastic elastomeric polymeric fibers and active particles located in the fibers.
EFFECT: fabric has a three-dimensional deformation which is characterised by a uniform density along the direction of thickness of the fabric.
14 cl, 10 dwg
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