Method and device for manufacturing aerosol generating rod, and aerosol generating article including the aerosol generating rod manufactured by the method and device

Abstract

A method of manufacturing an aerosol generating rod includes providing a sheet of a first non-tobacco material by using at least one first conveying roller; crimping the sheet of the first non-tobacco material by using a first crimping device; applying an aerosol generating material to at least one surface of the sheet of the first non-tobacco material by using a first spray nozzle; applying a liquid containing a tobacco component to at least one surface of the sheet of the first non-tobacco material by using a slit nozzle; drying the sheet of the first non-tobacco material by using a drying device; and forming the aerosol generating rod by forming the sheet of the first non-tobacco material into a rod by using a rod forming device.

1 . An aerosol generating article comprising:
 an aerosol generating rod comprising a sheet of a first non-tobacco material to which an aerosol generating material is applied on at least one surface and then a liquid containing a tobacco component is additionally applied;   a cooling section located downstream of the aerosol generating rod and configured to cool aerosols generated from the aerosol generating rod; and   a filtering section located downstream of the cooling section.   
     
     
         2 . The aerosol generating article of  claim 1 , wherein the liquid containing the tobacco component is uniformly applied according to the entire area of the one surface on which the aerosol generating material is applied. 
     
     
         3 . The aerosol generating article of  claim 1 , wherein the sheet of the first non-tobacco material is a material other than a tobacco material, and comprises a polymer material or a cellulose material capable of absorbing the aerosol generating material. 
     
     
         4 . The aerosol generating article of  claim 1 , wherein the aerosol generating rod comprises about 40 wt % to about 90 wt % of the aerosol generating material in dry weight basis of the aerosol generating rod. 
     
     
         5 . The aerosol generating article of  claim 1 , wherein
 the liquid containing the tobacco component comprises a liquid in which tobacco granules or tobacco fine particles are mixed with a liquid binder, and   the tobacco granules or the tobacco fine particles have a size of about 10 μm to about 50 μm.   
     
     
         6 . The aerosol generating article of  claim 5 , wherein the liquid binder comprises at least one of: at least one binder selected from the group consisting of gum, hydroxypropyl methylcellulose (HPMC), and starch; water; and ethanol. 
     
     
         7 . The aerosol generating article of  claim 1 , wherein the aerosol generating rod further comprises a sheet of a second non-tobacco material to which only an aerosol generating material is applied on at least one surface.