Aerosol generating article and aerosol generating system

Abstract

An aerosol-generating system according to various embodiments includes: an aerosol-generating article including a medium segment; and an aerosol-generating device, wherein the aerosol-generating article further includes: a first filter segment arranged at the upstream of the medium segment; and a second filter segment arranged at the downstream of the medium segment, and nicotine may be adsorbed to at least one of the first filter segment and the second filter segment.

1 . An aerosol generating system comprising:
 an aerosol generating article comprising a medium segment; and   an aerosol generating device comprising a controller comprising at least one processor; an elongated cavity configured to receive the aerosol generating article; and a vaporizer configured to generate an aerosol by heating a liquid composition and emit the generated aerosol toward the aerosol generating article,   wherein the aerosol generating article further comprises:   a first filter segment disposed upstream of the medium segment; and   a second filter segment disposed downstream of the medium segment,   wherein nicotine is adsorbed into at least one of the first filter segment and the second filter segment.   
     
     
         2 . The aerosol generating system of  claim 1 , wherein the nicotine adsorbed into at least one of the first filter segment and the second filter segment is transferred from the medium segment. 
     
     
         3 . The aerosol generating system of  claim 1 or 2 , wherein the medium segment is pH-treated. 
     
     
         4 . The aerosol generating system of  claim 3 , wherein the medium segment is pH-treated such that the pH thereof is in the range of 8.0 to 9.5. 
     
     
         5 . The aerosol generating system of  claim 1 , wherein a medium used to fill the medium segment comprises at least one component of reconstituted tobacco sheets and tobacco granules. 
     
     
         6 . The aerosol generating system of  claim 1 , wherein
 the aerosol generating device further comprises a heater configured to heat the medium segment, and   the aerosol generating article further comprises a cooling segment between the medium segment and the second filter segment.   
     
     
         7 . The aerosol generating system of  claim 6 , further comprising:
 a thermally conductive wrapper configured to wrap the medium segment.   
     
     
         8 . The aerosol generating system of  claim 7 , wherein the thermally conductive wrapper comprises an aluminum component. 
     
     
         9 . The aerosol generating system of  claim 6 , wherein
 the controller controls a temperature at which the heater heats the medium segment, and   the controller controls the heater between a non-heating mode in which the heater does not heat the medium segment and a low-temperature heating mode in which the heater heats the medium segment at a low temperature.   
     
     
         10 . The aerosol generating system of  claim 9 , wherein in the low-temperature heating mode, the controller controls the heater to heat the medium segment to 0° C. or more and 150° C. or less. 
     
     
         11 . An aerosol generating article comprising:
 a medium segment that is pH-treated;   a first filter segment disposed upstream of the medium segment; and   a second filter segment disposed downstream of the medium segment,   wherein nicotine is adsorbed into at least any one of the first filter segment and the second filter segment.   
     
     
         12 . The aerosol generating article of  claim 11 , wherein the nicotine adsorbed into the first filter segment and the second filter segment is transferred from the medium segment. 
     
     
         13 . The aerosol generating article of  claim 11 , wherein the medium segment is pH-treated such that the pH thereof is in the range of 8.0 to 9.5.