An aerosol generating material

Abstract

The invention relates to an aerosol generating material comprising a blend, the blend comprising at least 20% lamina tobacco, and the material is in the form of discrete particles. The invention al relates to articles for an aerosol provision system, the articles comprising a first aerosol generating material and a second aerosol generating material.

1 . An aerosol generating material comprising a blend, the blend comprising at least 20% lamina tobacco, by weight of the blend, wherein the aerosol generating material is in the form of discrete particles. 
     
     
         2 . An aerosol generating material according to  claim 1 , wherein the aerosol generating material comprises tobacco material in an amount of between about 65% and about 85% by weight of the aerosol generating material, water in an amount of between about 1% and about 10% by weight of the aerosol generating material, and an aerosol-former material in an amount of between about 10% and about 30% by weight of the aerosol generating material. 
     
     
         3 . An aerosol generating material according to  claim 1 or claim 2 , comprising about 75% tobacco, about 4% water, and about 20% aerosol-former material, by weight of the aerosol generating material. 
     
     
         4 . An aerosol generating material according to any one of  claims 1 to 3 , wherein the blend comprises at least about 30% lamina tobacco. 
     
     
         5 . An aerosol generating material according to any one of  claims 1 to 4 , wherein the blend further comprises reconstituted tobacco. 
     
     
         6 . An aerosol generating material according to  claim 5 , wherein the blend comprises up to about 80% reconstituted tobacco and more than about 20% lamina tobacco, by weight of the blend. 
     
     
         7 . An aerosol generating material according to  claim 5 or claim 6 , wherein the blend comprises between about 60% to about 80% reconstituted tobacco and between about 20% to about 40% lamina tobacco, by weight of the blend. 
     
     
         8 . An aerosol generating material according to any one of  claims 5 to 7 , wherein the blend comprises about 60% reconstituted tobacco and about 40% lamina tobacco, by weight of the blend. 
     
     
         9 . An aerosol generating material according to any one of  claims 1 to 8 , wherein the particles are extruded, compressed or moulded. 
     
     
         10 . An aerosol generating material according any one of  claims 1 to 9 , wherein the particles are beads or pellets. 
     
     
         11 . An aerosol generating material according to  claim 10 , wherein the beads or pellets are substantially spherical. 
     
     
         12 . An aerosol generating material according to  claim 10 or claim 11 , wherein the beads or pellets have a diameter of about 0.5 to about 3 mm. 
     
     
         13 . An aerosol generating material according to any one of  claims 1 to 12 , wherein the blend further comprises a flavourant. 
     
     
         14 . Use of an aerosol generating material as claimed in any one  claims 1 to 13  in an article for use in a non-combustible aerosol provision system. 
     
     
         15 . An article for use in a non-combustible aerosol provision system comprising the aerosol generating material as claimed in any one of  claims 1 to 13 . 
     
     
         16 . A method of preparing an aerosol generating material according to any one of  claims 1 to 13 , the method comprising:
 grinding an initial tobacco blend to produce a ground blend,   mixing and extruding the ground blend to produce an extruded blend,   performing spheronisation on the extruded blend to produce substantially spherical particles;   and drying the substantially spherical particles.   
     
     
         17 . A method according to  claim 16 , wherein the initial tobacco blend comprises reconstituted tobacco and lamina tobacco. 
     
     
         18 . A method according to  claim 16 or claim 17 , wherein the grinding and mixing comprises grinding the initial tobacco blend into particles smaller than 250 microns. 
     
     
         19 . A method according to any one of  claims 16 to 18 , wherein mixing and extruding includes mixing the ground composition; adding glycerol and water; and mixing until the mixture is homogenous. 
     
     
         20 . A method according to any one of  claims 16 to 19 , wherein drying comprises placing the particles in an oven at 65° C. for between about 30 to about 180 minutes. 
     
     
         21 . An article for an aerosol provision system comprising a first aerosol generating material in a first form and a second aerosol generating material in a second form, wherein the first and second aerosol generating materials are prepared from the same blend and the first form and second form are different. 
     
     
         22 . An article according to  claim 21 , wherein the article comprises an aerosol-generating section comprising a first region and a second region, and wherein the first aerosol generating material is located in the first region and the second aerosol generating material is located in the second region. 
     
     
         23 . An article according to  claim 21 or claim 22 , wherein the first aerosol generating material or the second aerosol generating material is in the form of discrete particles, and wherein the discrete particles are extruded, compressed or moulded, or wherein the discrete particles are beads or pellets. 
     
     
         24 . An article for use with an aerosol provision system comprising a first aerosol generating material comprising a first blend in the form of discrete particles, the first blend comprising at least 20% lamina tobacco, by weight of the first blend, and a second aerosol generating material comprising a second blend, the second blend comprising at least 20% lamina tobacco, by weight of the second blend optionally, wherein the second blend is in the form of shredded tobacco. 
     
     
         25 . An article according to  claim 24 , wherein the discrete particles are extruded, compressed or moulded, and/or wherein the particles are beads or pellets, and/or, wherein the first blend and the second blend comprise about 40% lamina and about 60% reconstituted tobacco