Aerosol-generating article having a plurality of air ingress zones

Abstract

An aerosol-generating article for producing an aerosol upon heating is provided, the article including: a rod of aerosol-forming substrate including an aerosol former, the aerosol-forming substrate having an aerosol former content of greater than 10 percent on a dry weight basis; and a filter positioned downstream of the rod of aerosol-forming substrate, in which the rod and the filter are assembled within a wrapper, the aerosol-generating article further including first and second air ingress zones located on the wrapper, the first and the second air ingress zones each being configured to allow the ingress of air into an interior of the aerosol-generating article, in which the second air ingress zone is located at a position at least 1.5 mm downstream of the first air ingress zone. An aerosol-generating system including the aerosol-generating article and an aerosol-generating device is also provided.

1 .- 15 . (canceled) 
     
     
         16 . An aerosol-generating article for producing an aerosol upon heating, the aerosol-generating article comprising:
 a rod of aerosol-forming substrate comprising an aerosol former, the aerosol-forming substrate having an aerosol former content of greater than 10 percent on a dry weight basis; and   a filter positioned downstream of the rod of aerosol-forming substrate,   wherein the rod of aerosol-forming substrate and the filter are assembled within a wrapper,   the aerosol-generating article further comprising first and second air ingress zones located on the wrapper, the first and the second air ingress zones each being configured to allow the ingress of air into an interior of the aerosol-generating article,   wherein the second air ingress zone is located at a position at least 1.5 mm downstream of the first air ingress zone.   
     
     
         17 . The aerosol-generating article according to  claim 16 , wherein the filter comprises:
 a mouthpiece segment comprising a plug of filtration material arranged downstream of the rod of aerosol-forming substrate, and   a hollow tubular segment located between the mouthpiece segment and the rod of aerosol-forming substrate.   
     
     
         18 . The aerosol-generating article according to  claim 17 , wherein the filter further comprises an aerosol-cooling element located between the mouthpiece segment and the hollow tubular segment. 
     
     
         19 . The aerosol-generating article according to  claim 16 , wherein a width of the first air ingress zone is greater than or equal to a width of the second air ingress zone. 
     
     
         20 . The aerosol-generating article according to  claim 16 , wherein a width of the first air ingress zone is at least 3 mm. 
     
     
         21 . The aerosol-generating article according to  claim 16 , wherein a width of the first air ingress zone is at least 5 mm. 
     
     
         22 . The aerosol-generating article according to  claim 16 , wherein the first air ingress zone comprises a substantially porous portion of the wrapper. 
     
     
         23 . The aerosol-generating article according to  claim 16 , wherein the second air ingress zone comprises a plurality of apertures extending through the wrapper. 
     
     
         24 . The aerosol-generating article according to  claim 16 , wherein the second air ingress zone comprises a substantially porous portion of the wrapper. 
     
     
         25 . The aerosol-generating article according to  claim 24 , wherein a width of the second air ingress zone is at least 3 mm. 
     
     
         26 . The aerosol-generating article according to  claim 24 , wherein a width of the second air ingress zone is at least 5 mm. 
     
     
         27 . The aerosol-generating article according to  claim 16 , wherein the first and the second air ingress zones are located along the rod of aerosol-forming substrate. 
     
     
         28 . The aerosol-generating article according to  claim 17 , wherein the second air ingress zone is located along the hollow tubular segment. 
     
     
         29 . The aerosol-generating article according to  claim 22 , wherein the first air ingress zone has a porosity of at least 3000 Coresta Units. 
     
     
         30 . The aerosol-generating article according to  claim 22 , wherein the first air ingress zone has a porosity of less than 25000 Coresta Units. 
     
     
         31 . The aerosol-generating article according to  claim 16 , wherein the wrapper comprises an air-impermeable material. 
     
     
         32 . An aerosol-generating system comprising an aerosol-generating article according to  claim 16  and an aerosol-generating device having a distal end and a mouth end, comprising:
 a housing defining a device cavity configured to removably receive the aerosol-generating article at the mouth end of the device; 
 a heater configured to heat the aerosol-forming substrate when the aerosol-generating article is received within the device cavity; and 
 an air-flow channel extending between a channel inlet and a channel outlet, the air-flow channel being configured to establish a fluid communication between an interior of the device cavity and an exterior of the aerosol-generating device, 
 wherein the aerosol-generating system is configured so that, when the aerosol-generating article is received within the device cavity, fluid communication between the interior of the aerosol-generating article and the exterior of the aerosol-generating device is established by a fluid communication being established between the first air ingress zone of the aerosol-generating article received within the device cavity and the air-flow channel of the aerosol-generating device.