Tobacco medium and aerosol-generating article comprising the same

Abstract

The present invention relates to a tobacco media and an aerosol-generating article including the same, and more particularly to a tobacco media for use in a non-combustible aerosol-generating article. The present invention is directed to a tobacco medium including a pulverized tobacco material and a pH adjuster, such that the tobacco medium includes at least 70 wt % of the pulverized tobacco material on a dry weight basis, the pulverized tobacco material includes at least 4 wt % of nicotine on a dry weight basis, the tobacco medium includes at least 2.8 wt % of nicotine on a dry weight basis, and a PH of the tobacco medium is in the range of 6 and 9.

What is claimed is: 
     
         1 . A tobacco medium comprising:
 a pulverized tobacco material; and   a pH adjuster,   wherein the tobacco medium includes at least 70 wt % of the pulverized tobacco material on a dry weight basis,   the pulverized tobacco material includes at least 4 wt % of nicotine on a dry weight basis,   the tobacco medium includes at least 2.8 wt % of nicotine on a dry weight basis, and   a PH of the tobacco medium is in a range of 6 to 9.   
     
     
         2 . The tobacco medium according to  claim 1 , wherein the tobacco medium is included in a non-combustible aerosol-generating article. 
     
     
         3 . The tobacco medium according to  claim 2 , wherein the aerosol-generating article has a heating temperature of 30° C. to 180° C. 
     
     
         4 . The tobacco medium according to  claim 1 , wherein the tobacco medium is manufactured in a form of reconstituted tobacco leaves or granules. 
     
     
         5 . The tobacco medium according to  claim 4 , wherein the form of granules is a structure including a core and a shell surrounding the core. 
     
     
         6 . The tobacco medium according to  claim 4 , wherein the tobacco medium further includes a coating layer on an outside of the reconstituted tobacco leaves or granules. 
     
     
         7 . The tobacco medium according to  claim 4 , wherein the coating layer has pores to increase an amount of nicotine transfer from the tobacco material. 
     
     
         8 . An aerosol-generating article comprising a tobacco medium,
 wherein the tobacco medium comprises a pulverized tobacco material and a pH adjuster,   the tobacco medium includes at least 70 wt % of the pulverized tobacco material on a dry weight basis;   the pulverized tobacco material includes at least 4 wt % of nicotine on a dry weight basis,   the tobacco medium includes at least 2.8 wt % of nicotine on a dry weight basis, and   a pH of the tobacco medium is in a range of 6 to 9.   
     
     
         9 . The aerosol-generating article according to  claim 8 , wherein the aerosol-generating article generates an aerosol without combustion when heated at a heating temperature. 
     
     
         10 . The aerosol-generating article according to  claim 9 , wherein the heating temperature is in a range of 30° C. to 180° C.