IMPROVED FILTER OF SMOKING ARTICLES Russian patent published in 2019 - IPC A24D3/10 

FIELD: smoking accessories.

SUBSTANCE: invention relates to a filter for a smoking article that contains randomly oriented short fibers from a first material and randomly oriented short fibers of a second material, and the second material contains at least one material comprising at least one of the following: polyvinyl alcohol, polylactic acid, poly(ε-caprolactone), poly(1-4 butanediol succinate), butylene adipate and terephthalate copolymer, starch-based materials, paper, aliphatic polyester materials and polymers of polysaccharides, nanofibres, carbon nanofibres and / or nanofibers, carrying a catalytic substance.

EFFECT: technical result is to increase the amount of additives without creating an excessive pressure drop.

9 cl, 16 dwg