Manufacturing method for tobacco sheet for non-combustion heating-type flavor inhaler

Abstract

A method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler, the sheet having high bulkiness, the method includes a step in which a mixture including a tobacco material and an aerogel-generating agent is formed into a sheet, and a step in which the mixture formed into the sheet is dried. A moisture reduction speed in the drying step is 0.8% WB/second or above.

1 . A method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler, the method comprising the steps of:
 forming a mixture containing a tobacco raw material and an aerosol-generating agent into a sheet shape; and   drying the mixture formed into the sheet shape,   wherein a moisture reduction rate in the drying is 0.8% WB/s or more.   
     
     
         2 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein the drying is performed by a flash drying process. 
     
     
         3 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 2 , wherein in the flash drying process, hot air blown onto the mixture formed into the sheet shape has a temperature of 140° C. to 350° C. 
     
     
         4 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 2 , wherein in the flash drying process, hot air blown onto the mixture formed into the sheet shape has an air velocity of 12 to 50 m/s. 
     
     
         5 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein an amount of moisture in the mixture formed into the sheet shape before the drying is 20% to 50% WB, and the amount of moisture in the mixture formed into the sheet shape after the drying is 8% to 15% WB. 
     
     
         6 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein the tobacco raw material is at least one tobacco powder selected from the group consisting of leaf tobacco, midribs, and residual stems. 
     
     
         7 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein a proportion of the tobacco raw material contained in 100% by mass of the mixture is 45% to 95% by mass on a dry basis. 
     
     
         8 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein the aerosol-generating agent is at least one selected from the group consisting of glycerine, propylene glycol, and 1,3-butanediol. 
     
     
         9 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein a proportion of the aerosol-generating agent contained in 100% by mass of the mixture is 4% to 50% by mass on a dry basis. 
     
     
         10 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein the mixture further contains a forming agent. 
     
     
         11 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 10 , wherein the forming agent is at least one selected from the group consisting of polysaccharides, proteins, and synthetic polymers. 
     
     
         12 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 10 , wherein a proportion of the forming agent contained in 100% by mass of the mixture is 0.1% to 15% by mass on a dry basis. 
     
     
         13 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 1 , wherein the mixture further contains a fibrous material as a reinforcing agent. 
     
     
         14 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 13 , wherein a proportion of the fibrous material contained in 100% by mass of the mixture is 5% to 50% by mass on a dry basis. 
     
     
         15 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 3 , wherein in the flash drying process, hot air blown onto the mixture formed into the sheet shape has an air velocity of 12 to 50 m/s. 
     
     
         16 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 2 , wherein an amount of moisture in the mixture formed into the sheet shape before the drying is 20% to 50% WB, and the amount of moisture in the mixture formed into the sheet shape after the drying is 8% to 15% WB. 
     
     
         17 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 3 , wherein an amount of moisture in the mixture formed into the sheet shape before the drying is 20% to 50% WB, and the amount of moisture in the mixture formed into the sheet shape after the drying is 8% to 15% WB. 
     
     
         18 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 4 , wherein an amount of moisture in the mixture formed into the sheet shape before the drying is 20% to 50% WB, and the amount of moisture in the mixture formed into the sheet shape after the drying is 8% to 15% WB. 
     
     
         19 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 2 , wherein the tobacco raw material is at least one tobacco powder selected from the group consisting of leaf tobacco, midribs, and residual stems. 
     
     
         20 . The method for manufacturing a tobacco sheet for a non-combustion heating-type flavor inhaler according to  claim 3 , wherein the tobacco raw material is at least one tobacco powder selected from the group consisting of leaf tobacco, midribs, and residual stems.