Aerosol-generating article

Abstract

An aerosol-generating article according to one aspect of the present disclosure may include a tobacco medium portion, a filter portion disposed to be spaced apart from the tobacco medium portion, and a tubular cooling portion disposed between the tobacco medium portion and the filter portion. An inner peripheral surface of the cooling portion may include a nicotine component.

1 . An aerosol-generating article comprising:
 a tobacco medium portion;   a filter portion disposed to be spaced apart from the tobacco medium portion; and   a tubular cooling portion disposed between the tobacco medium portion and the filter portion,   wherein the tubular cooling portion comprises an inner peripheral surface with a nicotine component.   
     
     
         2 . The aerosol-generating article of  claim 1 , wherein the nicotine component is uniformly disposed on the inner peripheral surface along a longitudinal direction of the tubular cooling portion. 
     
     
         3 . The aerosol-generating article of  claim 2 , wherein the nicotine component of the inner peripheral surface is disposed in a range of 0.1 to 1.0 mg/mm along the longitudinal direction of the tubular cooling portion. 
     
     
         4 . The aerosol-generating article of  claim 1 , wherein the nicotine component is non-uniformly disposed on the inner peripheral surface along a longitudinal direction of the tubular cooling portion. 
     
     
         5 . The aerosol-generating article of  claim 4 , wherein a concentration of the nicotine component of the inner peripheral surface at an inlet side of the tubular cooling portion adjacent to the tobacco medium portion is greater than at an outlet side of the tubular cooling portion adjacent to the filter portion. 
     
     
         6 . The aerosol-generating article of  claim 4 , wherein a concentration of the nicotine component of the inner peripheral surface at an inlet side of the tubular cooling portion adjacent to the tobacco medium portion is less than at an outlet side of the tubular cooling portion adjacent to the filter portion. 
     
     
         7 . The aerosol-generating article of  claim 4 , wherein a concentration of the nicotine component of the inner peripheral surface in a central region of the tubular cooling portion is greater than in opposite end regions of the tubular cooling portion. 
     
     
         8 . The aerosol-generating article of  claim 4 , wherein a concentration of the nicotine component of the inner peripheral surface in a central region of the tubular cooling portion is less than in opposite end regions of the tubular cooling portion. 
     
     
         9 . The aerosol-generating article of  claim 4 , wherein the nicotine component of the inner peripheral surface is disposed in a partial section of the inner peripheral surface along the longitudinal direction of the tubular cooling portion. 
     
     
         10 . The aerosol-generating article of  claim 1 , wherein the tubular cooling portion comprises a cellulose acetate tow. 
     
     
         11 . The aerosol-generating article of  claim 1 , wherein a flavoring material is further comprised in a wall constituting the tubular cooling portion. 
     
     
         12 . The aerosol-generating article of  claim 1 , wherein the nicotine component of the inner peripheral surface is a liquid nicotine solution or a nicotine salt. 
     
     
         13 . The aerosol-generating article of  claim 1 , wherein the nicotine component of the inner peripheral surface is disposed in a wall constituting the tubular cooling portion. 
     
     
         14 . The aerosol-generating article of  claim 1 , wherein the tobacco medium portion comprises a plurality of segments. 
     
     
         15 . The aerosol-generating article of  claim 14 , wherein at least one of the plurality of segments comprises a tobacco medium.