Aerosol generation
An aerosol generating article for use in an aerosol generating assembly, wherein the aerosol generating article comprises a tubular substrate which comprises a first aerosol-forming composition, wherein the first aerosol-forming composition comprises an amorphous solid; and a second aerosol-forming composition, wherein the second aerosol-forming composition is different from the first aerosol-forming composition.
1 . An aerosol generating article for use in an aerosol generating assembly, wherein the aerosol generating article comprises:
(i) a tubular substrate comprising a first aerosol-forming composition, wherein the first aerosol-forming composition comprises an amorphous solid comprising from about 5 to 80 wt % aerosol generating agent and wherein the amorphous solid comprises less than 20 wt % water; and
(ii) a second aerosol-forming composition;
wherein the second aerosol-forming composition is different from the first aerosol-forming composition,
wherein the aerosol generating article has first and second sections, the first and second sections being located at different positions along the axis of the aerosol generating article, and
wherein the amount of the first aerosol-forming composition and/or the amount of the second aerosol-forming composition provided in the first section is different to the respective amount provided in the second section.
2 . The aerosol generating article according to claim 1 , wherein the second aerosol-forming composition comprises an amorphous solid.
3 . The aerosol generating article according to claim 1 , wherein the tubular substrate further comprises the second aerosol-forming composition.
4 . The aerosol generating article according to claim 1 , wherein the second aerosol-forming composition comprises tobacco.
5 . The aerosol generating article according to claim 4 , wherein the tobacco is a reconstituted tobacco.
6 . An aerosol generating assembly comprising:
an aerosol generating article comprising:
a tubular substrate comprising a first aerosol-forming composition and a second aerosol-forming composition, wherein the first aerosol-forming composition comprises an amorphous solid; and
a heater configured to heat but not burn at least one of the first and second aerosol-forming compositions.
7 . The aerosol generating assembly according to claim 6 ,
wherein the amorphous solid comprises from about 5 to 80 wt % aerosol generating agent and comprises less than 20 wt % water;
wherein the second aerosol-forming composition is different from the first aerosol-forming composition,
wherein the aerosol generating article has first and second sections, the first and second sections being located at different positions along the axis of the aerosol generating article,
wherein the amount of the first aerosol-forming composition and/or the amount of the second aerosol-forming compositions provided in the first section is different to the respective amount provided in the second section, and
wherein the aerosol generating assembly is configured to provide a different heat profile to each of the first and second sections.
8 . The aerosol generating assembly according to claim 7 , wherein the aerosol generating assembly is configured to initiate heating of the first section at a different time to heating of the second section.
9 . The aerosol generating assembly according to claim 7 , further comprising at least two heaters, wherein the at least two heaters are arranged to respectively heat, without burning, the different first and second sections of the aerosol generating article.
10 . The aerosol generating assembly according to claim 6 , wherein the heater is disposed inside the tube of the tubular substrate.
11 . The aerosol generating assembly according to claim 6 , wherein the heater is disposed outside the tube of the tubular substrate.
12 . The aerosol generating assembly according to claim 6 , wherein the aerosol generating assembly is a heat-not-burn device.
13 . The aerosol generating assembly according to claim 6 , wherein the aerosol generating assembly is an electronic tobacco hybrid device.
14 . The aerosol generating assembly according claim 8 , further comprising at least two heaters, wherein the at least two heaters are arranged to respectively heat, without burning, the different first and second sections of the aerosol generating article.
15 . The aerosol generating article according to claim 1 , wherein the aerosol generating article does not comprise tobacco fibers.
16 . The aerosol generating article according to claim 1 , wherein the amorphous solid comprises a gelling agent, an aerosol generating agent, an active substance, and an optional flavorant.
17 . The aerosol generating article according to claim 16 , wherein the second aerosol-forming composition comprises a second amorphous solid comprising a gelling agent, an aerosol generating agent, an active substance, and an optional flavorant.
18 . The aerosol generating article according to claim 16 , wherein the active substance of the amorphous solid of the first aerosol-generating composition, the second aerosol-generating composition or both the first and second aerosol-generating compositions is chosen from the group consisting of tobacco, tobacco extract, nicotine, caffeine, taurine, theine, vitamin B6, vitamin B12, vitamin C, melatonin, one or more cannabinoids, and combinations thereof.
19 . The aerosol generating article according to claim 1 , wherein the amorphous solid consists of or comprises a hydrogel.