Smoking article

摘要

A smoking article (1) in which a patch of web material (7) such as paper containing an adsorbent material therein, such as activated carbon, is positioned towards the mouth end of the smoking article (1) to achieve a flatter puff profile compared to a conventional cigarette by decreasing the smoke constituents in the final few puffs. Characteristics of the smoking articles may be changed to increase the delivery of smoke constituents in the first few puffs in order to maintain a constant ISO NFDPM yield. The adsorbent-containing paper extends over only a portion of the smoking article towards the mouth end and does not comprise a flavorant therein.

主权项

1. A smoking article comprising a rod of smokable material, a wrapper circumscribing said rod of smokable material and a patch of web material, said patch of web material comprising an adsorbent material and being positioned towards a mouth end of the smoking article, wherein the patch of web material is formed of a sheet having a perimeter which extends over only a portion of about 10 -80% of the length of the rod of smokable material, and over at least a portion of the circumference of the rod of smokable material, such that the web material adsorbs smoke constituents from air drawn into the smoking article in a manner which provides the smoking article with a flatter puff profile that is able to deliver a similar level of smoke constituents in both the first and last puffs, wherein said patch of web material does not comprise a flavourant therein.