An Aerosol Generating Article and Method of Manufacturing the Same

Abstract

An aerosol generating article for use with an aerosol generating device includes a substantially planar aerosol generating substrate, at least one airflow channel extending along the substantially planar aerosol generating substrate, and an inductively heatable susceptor positioned in the aerosol generating substrate. The aerosol generating article can optionally include a wrapping member surrounding the substantially planar aerosol generating substrate and the at least one airflow channel. Methods of manufacturing the aerosol generating article are also described.

1 . An aerosol generating article for use with an aerosol generating device, the aerosol generating article comprising:
 a substantially planar aerosol generating substrate;   at least one airflow channel extending along the substantially planar aerosol generating substrate; and   an inductively heatable susceptor positioned in the aerosol generating substrate.   
     
     
         2 . The aerosol generating article according to  claim 1 , wherein the aerosol generating article comprises a distal end, a proximal end, a longitudinal axis extending between the proximal end and the distal end, and the at least one airflow channel extends in a first direction substantially parallel to the longitudinal axis. 
     
     
         3 . The aerosol generating article according to  claim 1 , wherein the at least one airflow channel comprises at least one groove formed in a surface of the substantially planar aerosol generating substrate. 
     
     
         4 . The aerosol generating article according to  claim 3 , wherein the at least one groove comprises a plurality of grooves arranged side by side to form a fluted surface. 
     
     
         5 . The aerosol generating article according to  claim 1 , wherein the at least one airflow channel comprises at least one airflow passage formed internally within the aerosol generating substrate. 
     
     
         6 . The aerosol generating article according to  claim 1 , wherein:
 the aerosol generating substrate comprises a plurality of aerosol generating strips extending in a first direction and arranged intermittently in a second direction perpendicular to the first direction;   the at least one airflow channel comprises a plurality of airflow channels and one of said airflow channels is formed between each pair of intermittently arranged aerosol generating strips.   
     
     
         7 . The aerosol generating article according to  claim 1 , wherein the substantially planar aerosol generating substrate has a flat rectangular shape having a pair of first and second main surfaces, and the inductively heatable susceptor is substantially planar and lies substantially parallel to the main surfaces. 
     
     
         8 . The aerosol generating article according to  claim 7 , wherein the at least one airflow channel is formed in the first main surface and the substantially planar inductively heatable susceptor is positioned in the aerosol generating substrate closer to the second main surface than to the first main surface. 
     
     
         9 . The aerosol generating article according to  claim 1 , wherein the inductively heatable susceptor comprises discontinuities or holes therein. 
     
     
         10 . The aerosol generating article according to  claim 1 , further comprising a wrapping member surrounding the substantially planar aerosol generating substrate and the at least one airflow channel. 
     
     
         11 . The aerosol generating article according to  claim 10 , wherein the substantially planar aerosol generating substrate has a flat rectangular shape having a pair of first and second main surfaces and the wrapping member comprises a pair of first and second rectangular sheets attached, respectively, to the pair of first and second main surfaces. 
     
     
         12 . The aerosol generating article according to  claim 10 , wherein the wrapping member has a porous inner surface facing towards the aerosol generating substrate for absorbing condensation and an anti-stick outer surface facing away from the aerosol generating substrate. 
     
     
         13 . The aerosol generating article according to  claim 1 , wherein the aerosol generating article comprises a support member forming a mouth-end portion of the article, and the support member has a tubular form to receive a downstream end of the aerosol generating substrate and the at least one airflow channel. 
     
     
         14 . A method of manufacturing an aerosol generating article according to  claim 1 , the method comprising:
 providing a substantially planar aerosol generating substrate;   positioning an inductively heatable susceptor in the substantially planar aerosol generating substrate; and   forming at least one airflow channel in the substantially planar aerosol generating substrate.   
     
     
         15 . The method of manufacturing an aerosol generating article according to  claim 1 , the method further comprising:
 providing an inductively heatable susceptor;   forming a substantially planar aerosol generating substrate around the inductively heatable susceptor; and   forming at least one airflow channel in the substantially planar aerosol generating substrate.   
     
     
         16 . The aerosol generating article according to  claim 12 , wherein the wrapping member comprises an anti-stick coating on the outer surface. 
     
     
         17 . The aerosol generating article according to  claim 9 , wherein the inductively heatable susceptor comprises a mesh.