Filters for smoking articles

Details Filters for smoking articles Filters for smoking articles

A - Human Necessities

24

D

131/11

A24D 1/04 (2006.01) A24D 3/04 (2006.01)

Patent

CA 1045496

A B S T R A C T A smoking article, for example a cigarette, comprises a tobacco rod and a self-bonded filter which is composed of fibrous or filamentary material containing a dispersion of activated carbon and is joined to the said rod by a tipping band of air-pervious material which permits an inflow of air, into the filter only, through the band of 23 to 86% of the puff volume, around at least a peripheral region of the filter spaced away from the end thereof adjacent to the end of the tobacco rod. The band may be made of porous paper or of substantially non-porous material provided with perforations permitting the inflow of air.

267065

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