具有单一径向分离之导热元件的烟品;SMOKING ARTICLE WITH SINGLE RADIALLY-SEPARATED HEAT-CONDUCTING ELEMENT

摘要

一种烟品(2、42)包含：一具有相对之前表面(6)和后表面(8)的可燃热源(4)；一在该可燃热源(4)后表面(8)下游的气溶胶形成基材(10)；及一单一导热元件(36)，该单一导热元件覆盖该可燃热源(4)的一后部分和该气溶胶形成基材(10)的至少一前部分。该单一导热元件(36)包含一层或多层导热材料，而该一层或多层导热材料系与该可燃热源(4)和该气溶胶形成基材(10)径向分离。该可燃热源(4)系一非直通可燃热源，或该可燃热源(4)系一直通可燃热源，且该烟品(42)进一步包含一在该直通可燃热源和一个或多个气流通道(44)之间的实质上不可燃不透气屏障(46)，该一个或多个气流通道从该直通可燃热源前表面(6)延伸至后表面(8)。该单一导热元件包含一在该烟品的外观上可见的导热材料外层。; an aerosol-forming substrate (10) downstream of the rear face (8) of the combustible heat source (4); and a single heat-conducting element (36) overlying a rear portion of the combustible heat source (4) and at least a front portion of the aerosol-forming substrate (10). The single heat-conducting element (36) comprises one or more layers of heat conductive material and the one or more layers of heat conductive material are radially separated from the combustible heat source (4) and the aerosol-forming substrate (10). The combustible heat source (4) is either a blind combustible heat source or the combustible heat source (4) is a non-blind combustible heat source and the smoking article (42) further comprises a non-combustible substantially air impermeable barrier (46) between the non-blind combustible heat source and one or more airflow channels (44) extending from the front face (6) to the rear face (8) of the non-blind combustible heat source. The single heat-conducting element comprises an outer layer of heat conductive material that is visible on the exterior of the smoking article.