Flat Tobacco Article Comprising at Least Two Layers and Aerosol Generating Device with Such an Article

Abstract

A flat-shaped tobacco article includes a first heating portion and a second heating portion designed to be arranged parallel to the first heating portion; the first heating portion including a substrate layer including tobacco substrate; the second heating portion including a retainer layer including a vapour forming agent and an agent retainer retaining the vapour forming agent; the flat-shaped tobacco article being configured to receive at least a part of a double-sided flat heater of an aerosol generating device between the first and the second heating portions to heat simultaneously each of the heating portions.

1 . A flat-shaped tobacco article comprising a first heating portion and a second heating portion configured to be arranged parallel to the first heating portion;
 the first heating portion comprising a substrate layer comprising tobacco substrate;   the second heating portion comprising a retainer layer comprising a vapour forming agent and an agent retainer retaining the vapour forming agent;   the flat-shaped tobacco article being configured to receive at least a part of a double-sided flat heater of an aerosol generating device between the first and second heating portions to heat simultaneously each of the heating portions, the substrate layer and the retainer layer of respectively the first heating portion and the second heating portion are arranged to be heated directly by a corresponding side of the flat heater.   
     
     
         2 . The flat-shaped tobacco article according to  claim 1 , wherein the agent retainer is at least one of:
 unwoven fabric;   cotton; or   paper.   
     
     
         3 . The flat-shaped tobacco article according to  claim 1 , wherein the vapour forming agent is at least one of:
 polyol;   glycol;   non-polyol;   acid;   esters; or   any mixture thereof.   
     
     
         4 . The flat-shaped tobacco article according to  claim 1 , wherein the first heating portion further comprises at least one retainer layer arranged parallel to the substrate layer. 
     
     
         5 . The flat-shaped tobacco article according to  claim 4 , wherein the at least one retainer layer of the first heating portion is arranged to be heated through the corresponding substrate layer. 
     
     
         6 . The flat-shaped tobacco article according to  claim 1 , wherein the second heating portion further comprises a substrate layer arranged parallel to the retainer layer of this the second heating portion. 
     
     
         7 . The flat-shaped tobacco article according to  claim 6 , wherein the second heating portion further comprises a second retainer layers, the substrate layer being arranged between the two retainer layers of the second heating portion. 
     
     
         8 . The flat-shaped tobacco article according to  claim 7 , wherein the two retainer layers of the second heating portion have different thicknesses and/or comprise different vapour forming agents and/or comprise different agent retainers. 
     
     
         9 . The flat-shaped tobacco article according to  claim 1 , wherein the second heating portion has a layer composition different from a layer composition of the first heating portion. 
     
     
         10 . The flat-shaped tobacco article according to  claim 1 , wherein each heating portion is wrapped into a separate wrapper. 
     
     
         11 . The flat-shaped tobacco article according to  claim 1 , further comprising attaching means for attaching the heating portions, or extensions thereof, one to the other. 
     
     
         12 . The flat-shaped tobacco article according to  claim 1 , wherein each heating portion is extended by a filter part. 
     
     
         13 . An aerosol generating assembly comprising:
 an aerosol generating device comprising a double-sided flat heater;   the flat-shaped tobacco article according to  claim 1  configured to be heated by the heater to generate aerosol.   
     
     
         14 . The flat-shaped tobacco article according to  claim 1 , further comprising glue, clips, and/or wires for attaching the heating portions, or extensions thereof, one to the other. 
     
     
         15 . The flat-shaped tobacco article according to  claim 12 , wherein both heating portions share a same portion of a mouthpiece part.