Smoking article
View Patent ↗A smoking article, such as a cigarette, comprises a lighting end and a mouth end. The smoking article possesses an aerosol-generation system that includes (i) a heat generation segment, and (ii) an aerosol-generating region or segment. A mouth end piece segment can be located at the mouth end of the smoking article. A segment of tobacco cut filler, gathered tobacco paper, or other type of flavor source material, can be positioned between the mouth end piece segment and the aerosol-generation segment. Optionally, segment composed of tobacco cut filler can be positioned so as to provide a lighting end segment.
1. A cigarette comprising:
a lighting end and a mouth end;
a smokable segment disposed only at the lighting end, said smokable segment having a length and comprising a smokable material circumscribed by wrapping material;
a mouth end piece segment disposed at the mouth end;
an aerosol-generation system disposed between the smokable segment and the mouth end piece segment, the aerosol-generation system including (i) a heat generation segment adjacent to the downstream end of the smokable segment and axially aligned in an end-to-end relationship with, but physically separate from, the smokable segment, said heat generation segment having a length and including a heat source, and (ii) an aerosol-generating segment incorporating aerosol-forming material, said aerosol-generating segment having a length and being disposed between, but physically separate from, each of the heat generation segment and the mouth end;
a single piece of outer wrapping material that provides an overwrap (i) around the aerosol-generating segment for at least a portion of its length, (ii) around the heat generation segment for the length of that segment, and (iii) around the smokable segment for at least a portion of its length; those segments being connected together by the overwrap to provide a cigarette rod; and
the mouth end piece segment being connected to the cigarette rod using tipping material.
2. The cigarette of claim 1 , wherein the heat generation segment has a length of less than about 30 mm, and the heat source comprises a carbonaceous fuel element.
3. The cigarette of claim 1 , wherein the aerosol-generating segment incorporates glycerin, propylene glycol or combinations thereof.
4. The cigarette of claim 1 , wherein the heat generation segment and the aerosol-generating segment are in a heat exchange relationship with one another.
5. The cigarette of claim 1 , wherein the single piece of outer wrapping material that provides an overwrap extends up to about 1 mm to about 5 mm from the lighting end of the cigarette.
6. The cigarette of claim 1 , wherein the single piece of outer wrapping material that provides an overwrap extends so as to be flush with the lighting end of the cigarette.