| 摘要 |
A cigarette-like smokable article comprises a hollow rod (22) for directing smoke and air from the lit end of the article to a filter (14) located at the mouth end of the article. The rod is formed of tobacco material (24) and/or other cellulosic or pyrolized bone material, together with a binder and preferably an organic or inorganic salt. The materials are mixed in an aqueous or mixed aqueous/non-aqueous solution and then cast, extruded, or molded into the hollow rod shape. The rod is either surrounded by leaf tobacco and wrapped in cigarette paper (12), or is wrapped directly with cigarette paper, and combined with a filter to form the smokable article. Due to the hollow passage (23) through the rod, the article burns in an inverted fire cone shape, which heat treats the mainstream smoke and also reduces the amount of sidestream smoke produced.
|
