Method for manufacturing sheet for smoking article

Abstract

The present disclosure relates to a method for manufacturing a sheet for a smoking article, and more particularly, to a method for manufacturing a sheet for a smoking article, the method comprising the steps of: putting a tobacco material into an aqueous solvent, and soaking and pressurizing it to separate a solid part and a liquid part (S 1 ); removing the liquid part, forming a sheet with the solid part, and then drying and pulverizing the sheet (S 2 ); preparing a slurry by mixing pulp with the pulverized sheet (S 3 ); and injecting the slurry to form a sheet (S 4 ), wherein the sheet has a reduced specific component, and the specific component includes one or more selected from the group consisting of nicotine and nitrate. A smoking article comprising the sheet manufactured by the above manufacturing method is characterized by having a reduced specific component and excellent flavor.

1 . A method for manufacturing a sheet for a smoking article, the method comprising the steps of:
 putting a tobacco material into an aqueous solvent, and soaking and pressurizing it to separate a solid part and a liquid part (S 1 );   removing the liquid part, forming a sheet with the solid part, and then drying and pulverizing the sheet (S 2 );   preparing a slurry by mixing pulp with the pulverized sheet (S 3 ); and   injecting the slurry to form a sheet (S 4 ),   wherein the sheet has a reduced specific component, and the specific component includes one or more selected from the group consisting of nicotine and nitrate.   
     
     
         2 . The method of  claim 1 , wherein the step S 1  is performed by a method comprising the steps of: putting a tobacco material into an aqueous solvent, and heating it to 50° C. to 90° C. for 20 to 40 minutes (S 1 - 1 ); and separating the solid part and the liquid part by pressurizing the heated mixture after the heating (S 1 - 2 ). 
     
     
         3 . The method of  claim 1 , wherein the tobacco material includes one or more selected from the group consisting of tobacco leaves, tobacco leaf pieces, tobacco stems, and tobacco dust. 
     
     
         4 . The method of  claim 1 , further comprising a step of drying the sheet after the step S 4 . 
     
     
         5 . The method of  claim 1 , wherein the tobacco material is pulverized to an average powder size of 0.03 mm to 0.30 mm. 
     
     
         6 . The method of  claim 1 , further comprising a step of adding an aerosol-generating material to the sheet. 
     
     
         7 . The method of  claim 1 , wherein the sheet for a smoking article has a nicotine content of 1.0% or less. 
     
     
         8 . The method of  claim 1 , wherein the sheet for a smoking article has a nitrate content of 0.1% or less. 
     
     
         9 . A sheet for a smoking article, which is manufactured by the manufacturing method of  claim 1 . 
     
     
         10 . A smoking article comprising the sheet of  claim 9 .