A mouthpiece for an article for use in an aerosol provision system

Abstract

A mouthpiece for use in an aerosol provision system, the mouthpiece including two or more cylindrical sections circumscribed with a first, inner wrapper and a second, outer wrapper. The first, inner wrapper is a high wet strength wrapper; and the second, outer wrapper can be a porous wrapper.

1 . A mouthpiece for use in an aerosol provision system, the mouthpiece comprising:
 two or more cylindrical sections circumscribed with a first, inner wrapper and a second, outer wrapper; wherein   the first, inner wrapper is a high wet strength wrapper having a wet tensile strength of greater than 3 Newton per 15 millimetres.   
     
     
         2 . A mouthpiece according to  claim 1 , wherein the high wet strength wrapper has a wet tensile strength of between about 3 Newton per 15 millimetres and about 10 Newton per 15 millimetres; and/or a dry tensile strength of between about 15 Newton per 15 millimetres and about 40 Newton per 15 millimetres. 
     
     
         3 . A mouthpiece according to  claim 1 , wherein the high wet strength wrapper has a basis weight of between about 20 gsm and about 50 gsm; preferably between about 20 gsm and about 30 gsm. 
     
     
         4 . A mouthpiece according to  claim 1 , wherein the second, outer wrapper is a porous wrapper, optionally wherein the porous wrapper has a permeability of between about 2000 Coresta Units and about 10000 Coresta Units. 
     
     
         5 . A mouthpiece according to  claim 1 , wherein the first cylindrical section comprises a hollow tubular element formed from filamentary tow. 
     
     
         6 . A mouthpiece according to  claim 5 , wherein the filamentary tow forming the hollow tubular element has denier per filament of between 5 and 12 and a total denier of between 8,000 and 50,000. 
     
     
         7 . A mouthpiece according to  claim 1 , wherein the second cylindrical section comprises a body of material formed of filamentary tow. 
     
     
         8 . A mouthpiece according to  claim 7 , wherein the filamentary tow forming the body of material has a denier per filament of between 5 and 12 and a total denier of between 8,000 and 30,000. 
     
     
         9 . A mouthpiece according to  claim 7 , wherein at least one capsule is embedded in the body of material. 
     
     
         10 . A mouthpiece according to  claim 1 , wherein the mouthpiece comprises a third cylindrical section comprising a second hollow tubular element. 
     
     
         11 . A mouthpiece according to  claim 10 , wherein the second cylindrical section is positioned between the first and the third cylindrical sections. 
     
     
         12 . A mouthpiece according to  claim 10 , wherein the second hollow tubular element is formed from a plurality of layers of paper. 
     
     
         13 . A mouthpiece according to  claim 10 , wherein the third cylindrical section is not wrapped by the first wrapper and is optionally wrapped by the second wrapper. 
     
     
         14 . A mouthpiece according to  claim 1 , wherein the mouthpiece comprises a cavity having an internal volume greater than about 450 mm 3 . 
     
     
         15 . An article for use in an aerosol provision system, the article comprising:
 a section comprising an aerosol generating material; and   a mouthpiece according to  claim 1 .   
     
     
         16 . An article according to  claim 15 , wherein the mouthpiece and the section of aerosol generating material are held together by tipping paper which circumscribes at least part of the mouthpiece and part of the section of aerosol generating material. 
     
     
         17 . An article according to  claim 15 , wherein the section of aerosol generating material is wrapped in a third wrapper having a permeability of less than about 100 Coresta Units, less than about 80 Coresta Units, less than about 60 Coresta Units or less than about 20 Coresta Units. 
     
     
         18 . An article according to  claim 15 , comprising an outer circumference of between about 19 mm and about 23 mm. 
     
     
         19 . A system comprising an article according to  claim 14 , and a non-combustible aerosol provision device for heating the aerosol generating material of the article. 
     
     
         20 . A system according to  claim 19 , wherein the first and second cylindrical sections of the mouthpiece are not directly heated by the device.