Smoking article

Details Smoking article Smoking article

A - Human Necessities

24

D

A24D 3/04 (2006.01)

Patent

CA 2711476

A smoking article (10) has a filter (20) located at one end, the filter comprising at least first, second and third sections (34,41,51) disposed in succession along a cylindrical axis of the smoking article. Each of the first (31) and third (51) sections includes at least one tube (35,55) running the length of the respective section, substantially parallel to the cylindrical axis of the smoking article. The second section (41) comprises material of substantially higher filtration efficiency than the tubes (35,55) of the first and third section. Ventilation (43) may be provided around the circumference of the filter in one or more zones.

L'invention porte sur un article à fumer (10) qui comporte un filtre (20) disposé à une extrémité, le filtre comprenant au moins des première, deuxième et troisième sections (34, 41, 51) disposées en succession le long d'un axe cylindrique de l'article à fumer. Chacune des première (31) et troisième (51) sections comprend au moins un tube (35, 55) s'étendant le long de la section respective, sensiblement parallèlement à l'axe cylindrique de l'article à fumer. La deuxième section (41) comprend un matériau ayant un rendement de filtrage sensiblement supérieur à celui des tubes (35, 55) des première et troisième sections. Une ventilation (43) peut être réalisée autour de la circonférence du filtre dans une ou plusieurs zones.

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