Aerosol-generating article including tobacco sheet and aerosol-generating system using the same

Abstract

The present disclosure relates to an aerosol-generating article including a first portion including an aerosol-generating material; a second portion including a tobacco material in a form of a tobacco sheet; a third portion configured to cool airflow which has passed through the first portion and the second portion; and a fourth portion including a filter material, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially arranged in a length direction of the aerosol-generating article.

1 . An aerosol-generating article comprising:
 a first portion including an aerosol-generating material;   a second portion including a tobacco material in a form of a tobacco sheet;   a third portion configured to cool airflow which has passed through the first portion and the second portion; and   a fourth portion including a filter material,   wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially arranged in a length direction of the aerosol-generating article.   
     
     
         2 . The aerosol-generating article of  claim 1 , wherein the tobacco sheet has a rectangular shape, and a ratio of a vertical length to a horizontal length of the tobacco sheet is 10:1 to 30:1. 
     
     
         3 . The aerosol-generating article of  claim 1 , wherein the tobacco sheet is corrugated or folded. 
     
     
         4 . The aerosol-generating article of  claim 1 , wherein the tobacco sheet has a length of 180 mm or more in one direction. 
     
     
         5 . The aerosol-generating article of  claim 1 , wherein the second portion includes a plurality of tobacco sheets. 
     
     
         6 . The aerosol-generating article of  claim 1 , wherein the tobacco sheet includes 75 to 85 parts by weight of tobacco leaves, 5 to 20 parts by weight of a moisturizer, 3 to 10 parts by weight of pulp, and 3 to 10 parts by weight of a viscosity agent, based on a total of 100 parts by weight. 
     
     
         7 . The aerosol-generating article of  claim 1 , wherein the aerosol-generating article has an inhalation resistance of 20 to 60 mm H 2 O. 
     
     
         8 . The aerosol-generating article of  claim 1 , wherein a cross section taken perpendicular to the length direction has at least one closed curve formed by the tobacco sheet. 
     
     
         9 . An aerosol generating system comprising:
 the aerosol-generating article of  claim 1 ; and   an aerosol-generating device configured to heat at least one of the first portion and the second portion of the aerosol-generating article.   
     
     
         10 . The aerosol generating system of  claim 9 , wherein the second portion includes a tobacco sheet in a folded form, and the aerosol-generating device generates an aerosol by heating at least part of the first portion and at least part of the second portion.