Smoking article filter.

摘要

A cigarette smoking article (10) includes a tobacco rod (12) and a dual filter (18) comprising a tobacco rod end segment (22) made of cellulose acetate tow and a mouth end segment (24) made of a gathered, perforated polymeric film blended with a whitener to produce a substantially non-staining mouth end surface (32). The polymeric film (70) may also comprise a coextruded flavor film with a flavor carrier layer (72) disposed between a pair of barrier layers (74,76) for releasing a flavorant into the mainstream smoke during smoking of the cigarette. Transparent wraps (50,56,58,60) may be used to construct the cigarette from the component parts so that the filtration surfaces of the filter rod are visible through the wraps.