SEGMENTED SMOKING ARTICLE WITH MONOLITHIC SUBSTRATE
A cigarette includes lighting and mouth ends. It may include a smokable segment disposed at the lighting end. It also includes a mouth-end segment; an aerosol-generation system disposed between the lighting and mouth ends, which includes (i) a heat-generation segment adjacent the smokable segment, including a heat source configured to be activated by combustion of a smokable material and an insulation layer, and (ii) an aerosol-generating segment including a monolithic substrate with aerosol-forming material disposed between, but physically separate from, each of the heat generation segment and the mouth end; a piece of outer wrapping material that provides an overwrap around at least a portion of the aerosol-generating segment, the heat-generation segment, and at least a portion of the smokable segment; those segments being connected together by the overwrap to provide a cigarette rod; that is connected to the cigarette rod using tipping material.
1 . A cigarette comprising:
a lighting end and a mouth end;
a mouth end piece segment disposed at the mouth end; and
an aerosol-generation system disposed between the lighting end and the mouth end piece segment, the aerosol-generation system including
a heat generation segment disposed at the lighting end having a length including a heat source configured to be activated by ignition of the lighting end and an insulation layer of flame-retardant material disposed around the heat source;
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, wherein the aerosol-generating segment includes a monolithic substrate.
2 . The cigarette of claim 1 , wherein the monolithic substrate comprises about one-tenth to about one-half of a total length of the cigarette.
3 . The cigarette of claim 1 , wherein the monolithic substrate comprises tobacco, glycerin, water, and a binder.
4 . The cigarette of claim 3 , wherein the monolithic substrate further comprises a selected one of calcium carbonate or graphite as a filler.
5 . The cigarette of claim 1 , wherein the monolithic substrate comprises about 10 to about 90 weight-percent tobacco.
6 . The cigarette of claim 1 , wherein the monolithic substrate comprises a mixture of flue-cured, Burley, and Turkish tobaccos.
7 . The cigarette of claim 1 , wherein the monolithic substrate comprises a center-hole disposed longitudinally through a length thereof.
8 . The cigarette of claim 1 , wherein the monolithic substrate comprises at least one slot on an exterior surface thereof.
9 . The cigarette of claim 1 , wherein the monolithic substrate comprises diammonium phosphate.
10 . The cigarette of claim 1 , wherein the monolithic substrate comprises a plurality of channels longitudinally disposed therethrough.
11 . The cigarette of claim 1 , further comprising a hollow spacing tube disposed between the monolithic substrate and the mouth end.
12 . The cigarette of claim 1 , further comprising a tobacco rod disposed between the monolithic substrate and the mouth end.
13 . The cigarette of claim 1 , wherein the monolithic substrate comprises an outer diameter of about 5 mm to about 10 mm.
14 . The cigarette of claim 1 , wherein the monolithic substrate comprises a generally cylindrical outer geometry.
15 . The cigarette of claim 1 , wherein the lighting end comprises a tobacco portion distal of the heat source.
16 . The cigarette of claim 1 , wherein the monolithic substrate comprises about 10 to about 90 weight-percent tobacco, about 5 to about 50 weight-percent glycerin, about 1 to about 30 weight-percent water, and about 0 to about 10 weight-percent binder.
17 . The cigarette of claim 1 , wherein the monolithic substrate comprises about 23 to about 58 weight-percent tobacco, about 22 to about 32 weight-percent glycerin, about 1 to about 16 weight-percent water, and about 1 to about 4 weight-percent binder.
18 . A monolithic substrate member configured for use in a smoking article, the monolithic substrate comprising:
a composition including about 10 to about 90 weight-percent tobacco, about 5 to about 50 weight-percent glycerin, about 1 to about 30 weight-percent water, and about 0 to about 10 weight-percent binder;
a body having generally cylindrical outer geometry of about 10 mm to about 50 mm in length;
at least one center-hole formed as a longitudinal channel through the body.
19 . The monolithic substrate member of claim 18 , further comprising a plurality of grooves on an external body surface.
20 . A cigarette comprising the monolithic substrate member of claim 19 .