发明名称 SMOKING ARTICLE
摘要 A smoking article has a tobacco rod wrapped within a wrapping material and having first and second ends, a filter rod and ventilation, wherein the filter rod is connected to the first end of the tobacco rod by a tipping material partially overlapping the tobacco rod and at least partially overlapping the filter rod, and wherein the wrapping material is provided with a first region having a first permeability and/or porosity, the first region extending longitudinally along the tobacco rod from an intermediate position along the portion of the tobacco rod which is not overlapped by the tipping material towards the tipping material and with a second region having a second porosity and/or permeability higher than the first porosity and/or permeability, the second region extending longitudinally along the tobacco rod from the intermediate position towards the second end of the tobacco rod.
申请公布号 US2014299144(A1) 申请公布日期 2014.10.09
申请号 US201214357184 申请日期 2012.10.25
申请人 BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED 发明人 Fiebelkorn Richard
分类号 A24D3/04;A24D1/02 主分类号 A24D3/04
代理机构 代理人
主权项 1. A smoking article comprising: a tobacco rod wrapped within a wrapping material and having a first end and a second end; a filter rod; and a porous plug wrap material, configured to supply ventilation into the filter rod, covering the lateral surface of the filter rod; wherein the filter rod is connected to the first end of the tobacco rod by a tipping material partially overlapping the tobacco rod and at least partially overlapping the filter rod; and wherein the wrapping material is provided with a first region having a first permeability and porosity, the first region extending longitudinally along the tobacco rod from an intermediate position along the portion of tobacco rod which is not overlapped by the tipping material towards the tipping material and with a second region having a porosity higher than the porosity of the first region and/or a permeability higher than the permeability of the first region, the second region extending longitudinally along the tobacco rod from the intermediate position towards the second end of the tobacco rod.
地址 London GB