Aerosol-generating articles and aerosol-generating systems

Abstract

An aerosol-generating article according to an embodiment includes a medium segment comprising a cavity and at least one of a first segment disposed upstream of the medium segment and a second segment disposed downstream of the medium segment, wherein the cavity is filled with a medium and a filling rate of the medium in the cavity may be at least 50 vol %.

1 . An aerosol-generating article comprising:
 a medium segment comprising a cavity; and   at least one of a first segment disposed upstream of the medium segment and a second segment disposed downstream of the medium segment;   wherein the cavity is filled with a medium, and   a filling volume ratio of the medium in the cavity is at least 50 vol %.   
     
     
         2 . The aerosol-generating article of  claim 1 ,
 wherein nicotine spread from the medium is adsorbed into at least one of the first segment and the second segment.   
     
     
         3 . The aerosol-generating article of  claim 2 ,
 wherein the medium comprises at least one component of tobacco granules, reconstituted tobacco, or cut tobacco leaves, or a combination thereof.   
     
     
         4 . The aerosol-generating article of  claim 1 ,
 wherein a filling volume of the medium in the cavity is less than or equal to 80 vol %.   
     
     
         5 . The aerosol-generating article of  claim 1 ,
 wherein at least one of the first segment and the second segment comprises cellulose acetate.   
     
     
         6 . The aerosol-generating article of  claim 1 ,
 wherein the medium of the medium segment is pH-treated.   
     
     
         7 . The aerosol-generating article of  claim 6 ,
 wherein the medium is pH-treated to be in a range of 7.0 to 9.5.   
     
     
         8 . The aerosol-generating article of  claim 2 ,
 wherein an amount of nicotine adsorption per unit length of the first segment is greater than or equal to an amount of nicotine adsorption per unit length of the second segment.   
     
     
         9 . 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;   a second segment disposed downstream of the first segment; and   a medium segment disposed between the first segment and the second segment,   wherein the medium segment comprises a cavity, the cavity is filled with a medium, and nicotine spread from the medium is adsorbed into at least one of the first segment and the second segment, and   a filling volume of the medium in the cavity is at least 50 vol %.   
     
     
         10 . The aerosol-generating system of  claim 9 ,
 wherein a filling volume of the medium in the cavity is less than or equal to 80 vol %.   
     
     
         11 . The aerosol-generating system of  claim 9 ,
 wherein the medium is pH-treated to be in a range of 7.0 to 9.5.