Aerosol-generating article and aerosol-generating system

Abstract

An aerosol-generating article according to various embodiments includes a first segment and a second segment disposed downstream of the first segment, wherein, on the first segment and the second segment, nicotine is adsorbed, and the suction resistance of the first plasticizer may be greater than or equal to the suction resistance of the second plasticizer.

1 . An aerosol-generating article comprising:
 a first segment; and   a second segment disposed downstream of the first segment,   wherein nicotine is adsorbed into the first segment or the second segment, and   a draw resistance of the first segment is greater than or equal to a draw resistance of the second segment.   
     
     
         2 . The aerosol-generating article of  claim 1 ,
 wherein a draw resistance per unit length of the first segment is greater than or equal to a draw resistance per unit length of the second segment.   
     
     
         3 . The aerosol-generating article of  claim 1 ,
 wherein the first segment and the second segment comprise cellulose acetate, and a mass of cellulose acetate per unit length of the first segment is greater than or equal to a mass of cellulose acetate per unit length of the second segment.   
     
     
         4 . The aerosol-generating article of  claim 3 ,
 wherein a monodenier of the cellulose acetate of the first segment is less than or equal to a monodenier of the cellulose acetate of the second segment.   
     
     
         5 . The aerosol-generating article of  claim 1 , further comprising:
 a medium segment disposed between the first segment and the second segment,   wherein the medium segment comprises a pH-treated tobacco medium, and the nicotine adsorbed into the first segment or the second segment is spread from the medium segment.   
     
     
         6 . The aerosol-generating article of  claim 5 ,
 wherein the medium segment is pH-treated such a pH thereof is in a range of 7.0 to 9.5.   
     
     
         7 . The aerosol-generating article of  claim 1 ,
 wherein the first segment or the second segment is manufactured by cutting a filter portion to which free nicotine emitted from a medium raw material comprising nicotine is spread.   
     
     
         8 . An aerosol-generating system comprising:
 an aerosol-generating article; and   an aerosol-generating device comprising a controller comprising at least one processor, an elongated empty space configured to receive the aerosol-generating article, and a vaporizer configured to generate an aerosol by heating a liquid composition and emit the aerosol toward the aerosol-generating article,   wherein the aerosol-generating article comprises:   a first segment; and   a second segment disposed downstream of the first segment,   wherein the first segment or the second segment comprises cellulose acetate into which nicotine is adsorbed, and   a monodenier of the cellulose acetate of the first segment is less than or equal to a monodenier of the cellulose acetate of the second segment.   
     
     
         9 . The aerosol-generating system of  claim 8 ,
 wherein a draw resistance per unit length of the first segment is greater than or equal to a draw resistance per unit length of the second segment.   
     
     
         10 . The aerosol-generating system of  claim 8 ,
 wherein the aerosol-generating article further comprises a medium segment disposed between the first segment and the second segment,   the medium segment comprises a pH-treated tobacco medium, and   the nicotine adsorbed into the first segment or the second segment is spread from the medium segment.   
     
     
         11 . The aerosol-generating system of  claim 10 ,
 wherein the aerosol-generating device further comprises a heater for heating the first segment, the medium segment, or the second segment, and   the controller controls a temperature to heat the first segment, the medium segment, or the second segment.