Sheet of smokeable material

Abstract

The present invention relates to a laminate (10) comprising a layer of tobacco material (14) and a support sheet (12), wherein the layer of tobacco material (14) has a rough surface so as to provide a permeable structure through which air may be drawn when the laminate (10) is rolled or folded. The present invention also relates to a method of manufacturing a laminate (10), a package comprising a laminate (10), use of a laminate (10) to prepare a smoking article (20), and a smokeable product comprising a laminate (10).

1 . A laminate comprising
 a layer of tobacco material and   a support sheet,   wherein the layer of tobacco material has a rough surface so as to provide a permeable structure through which air may be drawn when the laminate is rolled or folded.   
     
     
         2 . A laminate according to  claim 1 , wherein the tobacco material comprises fibrous material. 
     
     
         3 . A laminate according to  claim 2 , wherein the fibrous material comprises tobacco. 
     
     
         4 . A laminate according to  claim 1 , wherein the tobacco material comprises reconstituted tobacco. 
     
     
         5 . A laminate according to  claim 1 , wherein the support sheet comprises paper. 
     
     
         6 . A laminate according to  claim 1 , wherein the tobacco material additionally comprises glycerol, polyethylene glycol, and/or propylene glycol. 
     
     
         7 . A laminate according to  claim 1 , wherein the tobacco material comprises from about 5 wt % water to about 20 wt % water. 
     
     
         8 . A laminate according to  claim 1 , wherein the permeable structure is uniform across an entire thickness of the tobacco material. 
     
     
         9 . A laminate according to  claim 1 , wherein a portion of the support sheet extends beyond an edge of the layer of tobacco material. 
     
     
         10 . A laminate according to  claim 9 , wherein the portion of the support sheet extending beyond an edge of the layer of tobacco material does not extend along the full length of the layer of tobacco material. 
     
     
         11 . A method of manufacturing a laminate according to  claim 1 , the method comprising
 preparing a layer of tobacco material having a rough surface and   adhering the layer of tobacco material to a support sheet.   
     
     
         12 . A method according to  claim 11 , wherein the layer of tobacco material comprises fibrous material. 
     
     
         13 . A method according to  claim 12 , wherein the fibrous material comprises tobacco. 
     
     
         14 . A package containing a laminate according to  claim 1 . 
     
     
         15 . A laminate according to  claim 1 , wherein the laminate is configured to prepare a smoking article. 
     
     
         16 . A smokeable product comprising a laminate as defined in  claim 1 . 
     
     
         17 . A laminate according to  claim 1 , wherein the tobacco material comprises from about 12 wt % water to about 16 wt % water.