Heat-Not-Burn Aerosol Generating Article with Sealed Closure on Tobacco Rod

Abstract

An e-vaping device tobacco heat stick includes a tobacco rod including: a first end, a second end, opposite to the first end, an external peripheral wall extending between the first end and the second end, an extension bound to the first end and including a filter, a sealed closure, fastened to the second end, including a flap including: a proximal portion bound to the second end, a distal portion, opposite to the proximal portion, an intermediate portion extending from the proximal portion to the distal portion and covering the second end, wherein: the flap distal portion is folded over a part of the tobacco rod external peripheral wall, so as to be fastened onto the part of the tobacco rod external peripheral wall.

1 . A heat-not-burn aerosol generating article comprising:
 a tobacco rod including:
 a first end, 
 a second end, opposite to said first end, and 
 an external peripheral wall extending between said first end and said second end, 
   an extension bound to said first end and comprising a filter, and   a sealed closure at said second end, comprising a flap including:
 a proximal portion bound to said second end, 
 a distal portion, opposite to said proximal portion, and 
 an intermediate portion extending from said proximal portion to said distal portion and covering said second end, 
   wherein:   said distal portion of said flap is folded over a part of said external peripheral wall of said tobacco rod, so as to be fastened onto said part of said external peripheral wall of said tobacco rod.   
     
     
         2 . The heat-not-burn aerosol generating article according to  claim 1 , wherein:
 a first glue layer is disposed between:
 said distal portion of said flap, 
 and said part of said external peripheral wall of said tobacco rod. 
   
     
     
         3 . The heat-not-burn aerosol generating article according to  claim 2 , wherein:
 a second glue layer is disposed between:
 said intermediate portion of said flap, 
 and said second end. 
   
     
     
         4 . The heat-not-burn aerosol generating article according to  claim 3 , wherein:
 said sealed closure further comprises a supplementary flap which is disposed between:
 said second glue layer, 
 and said second end. 
   
     
     
         5 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 a third glue layer is disposed between:
 said flap-intermediate portion of said flap, 
 and said second glue layer. 
   
     
     
         6 . The heat-not-burn aerosol generating article according to  claim 5 , wherein:
 said sealed closure further comprises another supplementary flap which is disposed between:
 said third glue layer, 
 and said second glue layer. 
   
     
     
         7 . The heat-not-burn aerosol generating article according to  claim 6 , wherein:
 said supplementary flap includes:
 a proximal portion bound to said second end, 
 a distal portion, covering only said second end but not covering any part of said external peripheral wall of said tobacco rod, and 
 an intermediate portion extending from said proximal portion of said supplementary flap to said distal portion of said supplementary flap and covering said second end; 
   and/or said another supplementary flap includes:
 a proximal portion bound to said second end, 
 a distal portion, covering only said second end but not covering any part of said external peripheral wall of said tobacco rod, and 
 an intermediate portion extending from said proximal portion of said another supplementary flap to said distal portion of said another supplementary flap and covering said second end. 
   
     
     
         8 . The heat-not-burn aerosol generating article according to  claim 4 , wherein a ratio of a first length from said proximal portion of said flap to said distal portion of said flap divided by a second length from said proximal portion of said supplementary flap to said distal portion of said supplementary flap ranges from 1.5 to 3. 
     
     
         9 . The heat-not-burn aerosol generating article according to  claim 4 , wherein a second length from said proximal portion of said supplementary flap to said distal portion of said supplementary flap ranges from 0.3 cm to 0.7 cm. 
     
     
         10 . The heat-not-burn aerosol generating article according to  claim 1 , wherein a first length from said proximal portion of said flap to said distal portion of said flap ranges from 0.8 cm to 2 cm. 
     
     
         11 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 a thickness of said flap is less than 0.2 cm,   and/or a thickness of said supplementary flap is less than 0.2 cm.   
     
     
         12 . The heat-not-burn aerosol generating article according to  claim 3 , wherein both said first and second glue layers are made as one and the same pre-glued layer disposed on said flap. 
     
     
         13 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 said flap has a pre-cut triangular or trapezoidal shape, said distal portion of said flap including a tip of said triangular or trapezoidal shape,   and/or said supplementary flap has a pre-cut triangular or trapezoidal shape, said distal portion of said supplementary flap including a tip of said triangular or trapezoidal shape.   
     
     
         14 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 said flap is an extension of a wrapper of said tobacco rod,   and/or said supplementary flap is another extension of said wrapper of said tobacco rod.   
     
     
         15 . A tobacco rod for a heat-not-burn device tobacco heat stick, comprising:
 a first end, a second end, opposite to said first end,   an external peripheral wall extending between said first end and said second end, and   a sealed closure at said second end, comprising a flap including:
 a proximal portion bound to said second end, 
 a distal portion, opposite to said proximal portion, and 
 an intermediate portion extending from said proximal portion to said distal portion and covering said second end, 
   wherein:   said distal portion of said flap is folded over a part of said external peripheral wall of said tobacco rod, so as to be fastened onto said part of said external peripheral wall of said tobacco rod.   
     
     
         16 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 a thickness of said flap is less than 0.05 cm,   and/or a thickness of said supplementary flap is less than 0.05 cm.   
     
     
         17 . The heat-not-burn aerosol generating article according to  claim 3 , wherein both said first and second glue layers are made as one and the same pre-glued layer disposed on said flap, covering said flap from said proximal portion of said flap to said distal portion of said flap. 
     
     
         18 . The heat-not-burn aerosol generating article according to  claim 4 , wherein:
 said flap is an extension of a wrapper of said tobacco rod, being one piece with said wrapper of said tobacco rod,   and/or said supplementary flap is another extension of said wrapper of said tobacco rod, being one piece with said wrapper of said tobacco rod.