SMOKING ARTICLE FILTER FOR EASY EXTINGUISHING

摘要

There is provided a smoking article comprising a tobacco rod, a filter and tipping material attaching the tobacco rod and the filter. The filter comprises a plug of filtration material that defines a furthest downstream end of the smoking article, the plug being surrounded by one or more filter wrappers. The tipping material includes a ventilation zone. The tipping material and the filter wrapper or wrappers have a combined thickness (t) perpendicular to the longitudinal direction of the smoking article, and the smoking article, at a location about the plug of filtration material, has a diameter (D SA) perpendicular to the longitudinal direction of the smoking article. The diameter (D SA) to thickness (t) ratio is less than about 80 and the filtration material extends to the furthest downstream end of the smoking article.

主权项

1. A smoking article comprising:
a tobacco rod; a filter comprising a plug of filtration material that defines a furthest downstream end of the smoking article, the plug being surrounded by one or more filter wrappers; and tipping material attaching the tobacco rod and the filter, the tipping material including a ventilation zone; wherein the tipping material and the filter wrapper or wrappers have a combined thickness (t) perpendicular to the longitudinal direction of the smoking article; wherein the smoking article, at a location about the plug of filtration material, has a diameter (DSA) perpendicular to the longitudinal direction of the smoking article; wherein the diameter (DSA) to thickness (t) ratio is less than about 80; wherein the filtration material extends to the furthest downstream end of the smoking article; wherein the ventilation zone comprises perforations through the tipping material; and wherein the perforations extend through the one or more filter wrappers.