Aerosol generating article and aerosol generating system including the same

Abstract

An aerosol generating article includes a tobacco rod including an aerosol generating material, a cooling rod located downstream of the tobacco rod and including a hollow, and a filter rod including a volatile flavoring. The filter rod includes a first filter portion connected upstream of the tobacco rod and a second filter portion disposed between the tobacco rod and the cooling rod, and a first content of the volatile flavoring included in the first filter portion is greater than a second content of the volatile flavoring included in the second filter portion.

What is claimed is: 
     
         1 . An aerosol generating article comprising:
 a tobacco rod comprising an aerosol generating material;   a cooling rod located downstream of the tobacco rod and comprising a hollow; and   a filter rod comprising a volatile flavoring,   wherein the filter rod comprises a first filter portion connected upstream of the tobacco rod and a second filter portion disposed between the tobacco rod and the cooling rod, and   a first content of the volatile flavoring included in the first filter portion is greater than a second content of the volatile flavoring included in the second filter portion.   
     
     
         2 . The aerosol generating article of  claim 1 , wherein
 the filter rod further includes a third filter portion connected to the downstream of the cooling rod, and   the second content of the volatile flavoring included in the second filter portion is greater than a third content of the volatile flavoring included in the third filter portion.   
     
     
         3 . The aerosol generating article of  claim 1 , wherein the tobacco rod includes a cavity which is an empty space filled with the aerosol generating material. 
     
     
         4 . The aerosol generating article of  claim 1 , wherein
 the filter rod further includes a third filter portion connected to the downstream of the cooling rod, and   a ratio of a total content of the volatile flavoring included in the filter rod to an amount of the volatile flavoring passing through the third filter portion is 10% or more and 14% or less.   
     
     
         5 . The aerosol generating article of  claim 1 , wherein the first content is in a range of 5.7 mg or more and 6.5 mg or less. 
     
     
         6 . The aerosol generating article of  claim 1 , wherein the second content is a range of 3.7 mg or more and 4.3 mg or less. 
     
     
         7 . The aerosol generating article of  claim 2 , wherein the third content is a range of 1.7 mg or more and 2.3 mg or less. 
     
     
         8 . The aerosol generating article of  claim 1 , wherein the first content is a range of 0.55 mg/mm or more and 0.65 mg/mm or less. 
     
     
         9 . The aerosol generating article of  claim 1 , wherein the second content is a range of 0.62 mg/mm or more and 0.70 mg/mm or less. 
     
     
         10 . The aerosol generating article of  claim 2 , wherein the third content is a range of 0.13 mg/mm or more to 0.17 mg/mm or less. 
     
     
         11 . The aerosol generating article of  claim 1 , wherein a volume of the first filter portion is greater than a volume of the second filter portion. 
     
     
         12 . The aerosol generating article of  claim 1 , wherein
 the filter rod further includes a third filter portion connected to the downstream of the cooling rod, and   at least one of the first filter portion, the second filter portion, or the third filter portion is a cellulose acetate filter.   
     
     
         13 . The aerosol generating article of  claim 1 , wherein the tobacco rod includes a pH adjuster. 
     
     
         14 . The aerosol generating article of  claim 1 , wherein the volatile flavoring includes at least one of menthol, peppermint, spearmint oil, or moisturizer. 
     
     
         15 . An aerosol generating system comprising:
 an aerosol generating article of  claim 1 ;   a cartridge comprising an accommodation portion configured to accommodate the aerosol generating article, a chamber configured to communicate with the accommodation portion, a storage storing an aerosol generating material and connected to the chamber, and a heating portion disposed in the chamber and configured to receive and heat the aerosol generating material; and   an aerosol generating device main body comprising a battery configured to supply power to the heating portion of the cartridge and a control unit configured to control the power supplied from the battery to the heating portion, wherein the cartridge is separably coupled to the aerosol generating device main body.