Aerosol-generating article with improved cooling performance and flavor persistence and method of producing the same

Abstract

An aerosol-generating article with improved cooling performance and flavor persistence and a method of producing the same are provided. The aerosol-generating article according to some embodiments of the present disclosure may include an aerosol-forming substrate part and a cooling part disposed downstream of the aerosol-forming substrate part configured to cool an aerosol formed in the aerosol-forming substrate part, and a sheet-type material may be disposed in a rolled or folded form in the cooling part. Here, the sheet-type material is a material including a flavoring and may serve as a cooling material as well as a flavor expressing material to improve flavor persistence and cooling performance of the aerosol-generating article.

What is claimed is: 
     
         1 . An aerosol-generating article comprising:
 an aerosol-forming substrate part; and   a cooling part disposed downstream of the aerosol-forming substrate part and configured to cool an aerosol formed in the aerosol-forming substrate part,   wherein a sheet-type material is disposed in a rolled or folded form in the cooling part, and includes a polysaccharide material and a flavoring.   
     
     
         2 . The aerosol-generating article of  claim 1 , wherein the sheet-type material is pleated or folded in a longitudinal direction. 
     
     
         3 . The aerosol-generating article of  claim 1 , wherein a plurality of holes are formed in the sheet-type material. 
     
     
         4 . The aerosol-generating article of  claim 3 , wherein a diameter of the hole is in a range of 0.1 mm to 3 mm. 
     
     
         5 . The aerosol-generating article of  claim 1 , wherein resistance to draw of the cooling part is in a range of 0.1 mmH 2 O/mm to 3.5 mmH 2 O/mm. 
     
     
         6 . The aerosol-generating article of  claim 1 , further comprising:
 a first filter part which is disposed downstream of the cooling part and has a hollow formed therein; and   a second filter part which is disposed downstream of the first filter part and in which a hollow is not formed.   
     
     
         7 . The aerosol-generating article of  claim 1 , further comprising;
 a first filter part which is disposed downstream of the cooling part and has a hollow formed therein; and   a second filter part which is disposed between the cooling part and the first filter part and in which a hollow is not formed.   
     
     
         8 . The aerosol-generating article of  claim 1 , further comprising:
 a first filter part which is disposed upstream of the cooling part and has a hollow formed therein; and   a second filter part which is disposed upstream of the cooling part and in which a hollow is not formed.   
     
     
         9 . The aerosol-generating article of  claim 1 , wherein the sheet-type material includes:
 20 to 60 parts by weight of the polysaccharide material; and   20 to 50 parts by weight of the flavoring.   
     
     
         10 . The aerosol-generating article of  claim 9 , wherein the sheet-type material further includes 1 to 10 parts by weight of a plasticizer. 
     
     
         11 . The aerosol-generating article of  claim 1 , wherein a thickness of the sheet-type material is 150 μm or less. 
     
     
         12 . The aerosol-generating article of  claim 1 , wherein a melting point of the flavoring is 80° C. or lower.