Aerosol-generating film

Abstract

An aerosol-generating film is provided, including: a tobacco content of less than 1 percent by weight; a cellulose based film-forming agent; water; nicotine; and a polyhydric alcohol, a content of the water being less than about 30 wt percent and a content of the polyhydric alcohol being at least about 25 wt percent, a ratio between a weight of the cellulose based film-forming agent and a weight of the polyhydric alcohol being from 0.1 to 1, and the aerosol-generating film being disposed on a support.

1 . An aerosol-generating film, comprising:
 a tobacco content of less than 1 percent by weight;   a cellulose based film-forming agent;   water;   nicotine; and   a polyhydric alcohol,   wherein a content of the water is less than about 30 wt percent and a content of the polyhydric alcohol is at least about 25 wt percent,   wherein a ratio between a weight of cellulose based film-forming agent and a weight of polyhydric alcohol is from 0.1 to 1, and   wherein the aerosol-generating film is disposed on a support.   
     
     
         2 . The aerosol-generating film according to  claim 1 , wherein the aerosol-generating film further comprises a non-cellulose based thickening agent. 
     
     
         3 . The aerosol-generating film according to  claim 1 , wherein the content of the polyhydric alcohol is at least about 40 wt percent. 
     
     
         4 . The aerosol-generating film according to  claim 1 , wherein the cellulose based film-forming agent is selected from the group consisting of hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), ethylcellyulose (EC), and combinations thereof. 
     
     
         5 . The aerosol-generating film according to  claim 1 , further comprising at least 10 wt percent of the cellulose based film forming agent. 
     
     
         6 . The aerosol-generating film according to  claim 2 , wherein the non-cellulose based thickening agent is selected from the group consisting of agar, xanthan gum, alginate, and combinations thereof. 
     
     
         7 . The aerosol-generating film according to  claim 2 , further comprising at least 3 wt percent of the non-cellulose based thickening agent. 
     
     
         8 . The aerosol-generating film according to  claim 1 , wherein the polyhydric alcohol is selected from the group consisting of glycerin, propylene glycol, and combinations thereof. 
     
     
         9 . The aerosol-generating film according to  claim 1 , further comprising an acid. 
     
     
         10 . The aerosol-generating film according to  claim 9 , wherein the acid is lactic acid or levulinic acid. 
     
     
         11 . The aerosol-generating film according to  claim 1 , further comprising a flavourant. 
     
     
         12 . The aerosol-generating film according to  claim 1 , consisting of:
 from about 14 wt percent to about 26 wt percent HPMC,   from about 3 wt percent to about 6 wt percent agar,   from about 0.5 wt percent to about 4 wt percent nicotine,   from about 0.25 wt percent to about 3 wt percent of an acid,   from about 44 wt percent to about 60 wt percent glycerin,   from 0 wt percent to about 2 wt percent of a flavourant, and   balance water.   
     
     
         13 . The aerosol-generating film according to  claim 1 , the aerosol-generating film having a thickness of from 50 micrometres to 400 micrometres. 
     
     
         14 . The aerosol-generating film according to  claim 1 , the aerosol-generating film having a basis weight of from 100 grams per square metre to 300 grams per square metre. 
     
     
         15 . A method for generating an inhalable aerosol, comprising heating a film according to  claim 1  to generate the inhalable aerosol. 
     
     
         16 . An aerosol-generating article for generating an inhalable aerosol upon heating, the aerosol-generating article comprising an aerosol-generating substrate comprising an aerosol-generating film according to  claim 1 .