Substitute smoking consumable

Abstract

A heat not burn consumable comprising a plant product interspersed with a thermally conductive material in alternating layers such as radially or circumferentially alternating layers. The thermally conductive material may comprise at least one tubular element or may have a spiral configuration. The thermally conductive material may form spokes within the plant product. A heating element may abut a first longitudinal end face of the consumable with a longitudinally-extending conductive element which protruding axially from the longitudinal end face. The plant product may have a smooth surface and the thermally conductive material may be textured. The layers of thermally conductive material may have a grid configuration or a boustrophedonic configuration.

1 . A heat not burn (HNB) consumable comprising a plant product interspersed with a thermally conductive material, wherein a transverse cross-section through the consumable comprises alternating layers of the plant product and the thermally conductive material. 
     
     
         2 . A consumable according to  claim 1  wherein the transverse cross-section through the consumable comprises radially alternating layers of the plant product and the thermally conductive material. 
     
     
         3 . A consumable according to  claim 1  wherein both the plant product and the thermally conductive material have interleaved spiral cross sections. 
     
     
         4 . A consumable according to  claim 3  wherein the thermally conductive material comprises at least one laminar sheet extending in a longitudinal direction through the consumable and rolled longitudinally to form a spiral configuration. 
     
     
         5 . A consumable according to  claim 4  comprising a plurality of laminar sheets of thermally conductive material rolled into a plurality of interleaved spiral configurations of thermally conductive material. 
     
     
         6 . A consumable according to  claim 4  wherein the plant product comprises at least one laminar sheet extending in a longitudinal direction through the consumable and rolled longitudinally to form a spiral configuration. 
     
     
         7 . A consumable according to  claim 3  wherein a radial spacing between at least three adjacent spiral layers of thermally conductive material is substantially equal in a transverse cross section of the consumable. 
     
     
         8 . A consumable according to  claim 7  wherein the radial spacing between at least two adjacent spiral layers of thermally conductive material remains substantially equal along the length of the consumable. 
     
     
         9 . A consumable according to  claim 8  wherein the radial spacing between substantially all of the spiral layers of thermally conductive material is substantially equal in the transverse cross section of the consumable. 
     
     
         10 . A consumable according to  claim 9  wherein the radial spacing between substantially all of the spiral layers of thermally conductive material remains substantially equal along the length of the consumable. 
     
     
         11 . A consumable according to  claim 1  wherein the thermally conductive material comprises at least one longitudinally-extending tubular element. 
     
     
         12 . A consumable according to  claim 11  wherein the thermally conductive material comprises at least one laminar sheet extending in a longitudinal direction through the consumable and rolled longitudinally to form the at least one tubular element. 
     
     
         13 . A consumable according to  claim 11  comprising a plurality of tubular elements of thermally conductive material. 
     
     
         14 . A consumable according to  claim 13  wherein the tubular elements are axially aligned such that, in a transverse cross section, the thermally conductive material forms a series of concentric rings interleaved with concentric rings of plant product. 
     
     
         15 . A consumable according to  claim 14  wherein the radial spacing between at least three adjacent rings of thermally conductive material is substantially equal in the transverse cross section of the consumable. 
     
     
         16 . A consumable according to  claim 15  wherein the radial spacing between at least two of the tubular elements of thermally conductive material remains substantially equal along the length of the consumable. 
     
     
         17 . A consumable according to  claim 4  further comprising a longitudinally-extending conductive element at the axial centre of the consumable formed of the thermally conductive material. 
     
     
         18 . A consumable according to  claim 17  wherein the conductive element is thermally coupled to the or each laminar sheet of thermally conductive material. 
     
     
         19 . A consumable according to  claim 18  wherein each laminar sheet comprises a longitudinal edge which is coupled to the conductive element which forms the axial centre of the spiral configuration. 
     
     
         20 . A heat not burn (HNB) system comprising:
 a heat not burn consumable according to  claim 1  having a heating element abutting a first longitudinal end face of the consumable.