Aerosol-generating article with thick wrapper and dense substrate

Abstract

An aerosol-generating article is provided, including: an aerosol-forming substrate in an aerosol-forming substrate portion; and a substrate wrapper at least partly circumscribing the aerosol-forming substrate portion, the substrate wrapper having a thickness of 50 micrometers or more, the substrate wrapper including one or more layers having a same length in a longitudinal direction of the aerosol-generating article, and a total density of the aerosol-forming substrate portion being more than 0.71 milligram per cubic millimeter. An aerosol-generating system including the aerosol-generating article and an aerosol-generating device is also provided.

1 .- 15 . (canceled) 
     
     
         16 . An aerosol-generating article, comprising:
 an aerosol-forming substrate in an aerosol-forming substrate portion; and   a substrate wrapper at least partly circumscribing the aerosol-forming substrate portion,   wherein the substrate wrapper has a thickness of 50 micrometers or more,   wherein the substrate wrapper comprises one or more layers having a same length in a longitudinal direction of the aerosol-generating article, and   wherein a total density of the aerosol-forming substrate portion is more than 0.71 milligram per cubic millimeter.   
     
     
         17 . The aerosol-generating article according to  claim 16 , wherein the substrate wrapper has a thickness of 60 micrometers or more. 
     
     
         18 . The aerosol-generating article according to  claim 16 , wherein the substrate wrapper has a thickness of 140 micrometers or more. 
     
     
         19 . The aerosol-generating article according to  claim 16 , wherein the substrate wrapper has a thickness of between 140 micrometers and 155 micrometers. 
     
     
         20 . The aerosol-generating article according to  claim 16 , wherein a ratio of substrate wrapper thickness to aerosol-forming substrate portion diameter is in a range from about 1:120 to about 1:20, or about 1:100 to about 1:30, or about 1:80 to about 1:35, or about 1:60 to about 1:40. 
     
     
         21 . The aerosol-generating article according to  claim 16 , wherein a total density of the aerosol-forming substrate portion is 0.715 milligram per cubic millimeter or more. 
     
     
         22 . The aerosol-generating article according to  claim 16 , wherein a total density of the aerosol-forming substrate portion is about 0.725 milligram per cubic millimeter. 
     
     
         23 . The aerosol-generating article according to  claim 16 , wherein at least 70 percent by volume of an inner volume of the aerosol-forming substrate portion is filled with aerosol-forming substrate. 
     
     
         24 . The aerosol-generating article according to  claim 16 , wherein at least 70 percent by volume of an inner volume of the aerosol-forming substrate portion is filled with aerosol-forming substrate and one or more susceptor elements. 
     
     
         25 . The aerosol-generating article according to  claim 16 , wherein at least about 79 percent by volume of an inner volume of the aerosol-forming substrate portion is filled with aerosol-forming substrate. 
     
     
         26 . The aerosol-generating article according to  claim 16 , wherein less than 30 percent by volume of an inner volume of the aerosol-forming substrate portion is empty. 
     
     
         27 . The aerosol-generating article according to  claim 16 , wherein about 21 percent by volume or less of an inner volume of the aerosol-forming substrate portion is empty. 
     
     
         28 . The aerosol-generating article according to  claim 16 , wherein a total mass of aerosol-forming substrate is less than 300 milligrams. 
     
     
         29 . The aerosol-generating article according to  claim 16 , wherein a resistance-to-draw of the aerosol-forming substrate portion circumscribed by the substrate wrapper is more than 10 millimeters of water gauge. 
     
     
         30 . The aerosol-generating article according to  claim 16 , wherein a resistance-to-draw of the aerosol-forming substrate portion circumscribed by the substrate wrapper per millimeter length along a longitudinal direction of the aerosol-generating article is between 1.7 millimeter of water gauge and 2.5 millimeters of water gauge. 
     
     
         31 . The aerosol-generating article according to  claim 16 , wherein a density of the aerosol-forming substrate is more than 800 kilograms per cubic meter. 
     
     
         32 . The aerosol-generating article according to  claim 16 , wherein a ratio of a total density of the aerosol-forming substrate portion divided by a total density of the aerosol-generating article at a longitudinal position of the aerosol-forming substrate portion is greater than 1.0. 
     
     
         33 . The aerosol-generating article according to  claim 16 , wherein a total length of the aerosol-forming substrate portion is 11 millimeters or less. 
     
     
         34 . The aerosol-generating article according to  claim 16 , wherein the substrate wrapper does not extend beyond ends of the aerosol-forming substrate portion in a longitudinal direction of the aerosol-generating article. 
     
     
         35 . An aerosol-generating system, comprising the aerosol-generating article according to  claim 16  and an aerosol-generating device comprising a heating chamber configured for at least partly inserting the aerosol-generating article into the heating chamber.