Stable wrapper for aerosol generating article

Abstract

A wrapper used in smoking articles. The wrapper has a low grease penetration or visual spotting and may be utilized with an aerosol generating substrate. The aerosol generating article (10) includes an aerosol generating substrate (12) comprising nicotine and a gel composition. The wrapper is disposed about and in contact with the aerosol generating substrate. The wrapper comprise a paper layer (50) comprising a surface treatment such that the paper has a negative result for at least one kit oil sample of method Tappi 559 cm-02, classical method 2002.

1 - 14 . (canceled) 
     
     
         15 . An aerosol generating article comprising:
 an aerosol generating substrate comprising nicotine and greater than about 20% by weight of an aerosol former; and   a wrapper disposed about and in contact with the aerosol generating substrate, the wrapper comprises a paper layer comprising a surface treatment such that the paper has a negative result for at least one kit oil sample of method Tappi 559 cm-02, classical method 2002.   
     
     
         16 . The aerosol generating article according to  claim 15 , wherein the paper layer having a negative result for at least 5 kit oil samples of method Tappi 559 cm-02, classical method 2002, or a negative result for all 10 kit oil samples of method Tappi 559 cm-02, classical method 2002. 
     
     
         17 . The aerosol generating article according to  claim 15 , wherein the paper layer has a grammage in a range from 25 g/m 2  to 45 g/m 2 , and a thickness in a range from 35 micrometers to 50 micrometers. 
     
     
         18 . The aerosol generating article according to  claim 15 , wherein the paper layer comprises PVOH or silicon. 
     
     
         19 . The aerosol generating article according to  claim 15 , wherein the paper layer comprises a surface treatment comprising PVOH or silicon. 
     
     
         20 . The aerosol generating article according to  claim 15 , wherein the paper layer comprises PVOH. 
     
     
         21 . The aerosol generating article according to  claim 15 , wherein the paper layer comprises silicon. 
     
     
         22 . The aerosol generating article according to  claim 15 , wherein the aerosol generating substrate comprises a gel composition. 
     
     
         23 . The aerosol generating article according to  claim 22 , wherein the gel composition comprises a majority of glycerine. 
     
     
         24 . The aerosol generating article according to  claim 23 , wherein the gel composition comprises xanthan gum. 
     
     
         25 . The aerosol generating article according to  claim 15 , wherein the aerosol generating substrate comprises homogenized tobacco material. 
     
     
         26 . The aerosol generating article according to  claim 25 , wherein the tobacco homogenized tobacco material comprises tobacco material, from 1 percent to 5 percent of a binder, and from 5 percent to 30 percent of an aerosol-former, in dry weight basis. 
     
     
         27 . The aerosol generating article according to  claim 15 , wherein the aerosol generating substrate comprises a metallic induction heating element. 
     
     
         28 . The aerosol generating article according to  claim 15 , wherein the aerosol generating substrate comprises a plurality of metallic induction heating elements. 
     
     
         29 . The aerosol generating article according to  claim 15 , wherein the paper layer is in direct contact with the aerosol generating substrate.