JPWO2020128043A5 - - Google Patents

Claims (14)

An aerosol-generating article for producing an inhalable aerosol when heated, said aerosol-generating article comprising:
a rod of aerosol-generating substrate;
a mouthpiece segment containing a plug of filtering material, the mouthpiece segment positioned downstream of and longitudinally aligned with the rod;
a hollow tubular segment located between said rod and said mouthpiece segment, said hollow tubular segment longitudinally aligned with said rod and said mouthpiece segment and defining a cavity extending to an upstream end of said mouthpiece segment; a hollow tubular segment defining;
A ventilation zone located along the hollow tubular segment, comprising one or more rows of perforations formed through the outer peripheral wall of the hollow tubular segment less than about 18 millimeters from the upstream end of the hollow tubular segment. a ventilation zone;
the ventilation zone is at least less than 45 millimeters from the upstream end of the aerosol-generating article;
the outer peripheral wall of the hollow tubular segment has a thickness of less than about 1.5 millimeters;
said rod of aerosol-generating substrate comprises at least an aerosol former, said rod of aerosol-generating substrate having an aerosol former content of at least about 10 percent on a dry weight basis;
The aerosol-generating article, wherein the aerosol-generating article has a ventilation level of at least about 10 percent. 2. The aerosol-generating article of claim 1, wherein said hollow tubular segment comprises a wrapper, said wrapper surrounding said rod and said mouthpiece segment. 10. The hollow tubular segment comprises a tube formed from polymeric or cellulosic material, and the heated aerosol-generating article further comprises a wrapper surrounding the rod, the tube and the mouthpiece segment. The aerosol-generating article according to . An aerosol-generating article according to any preceding claim, wherein the ventilation zone is located at least 2 millimeters along the hollow tubular segment from the upstream end of the mouthpiece segment. 5. The aerosol-generating article of claim 4, wherein the ventilation zone is located less than 25 millimeters along the hollow tubular segment from the downstream end of the mouthpiece segment. 6. The aerosol-generating article of any one of claims 1-5, wherein the aerosol-generating article has a ventilation level of less than about 60 percent. The aerosol-generating article of any one of claims 1-6, wherein the rod has a length of less than about 15 millimeters. The aerosol-generating article of any one of claims 1-7, wherein the hollow tubular segment has a length of about 10 millimeters to about 30 millimeters. 9. The aerosol-generating article of any one of claims 1-8, wherein the overall length of the aerosol-generating article is from about 40 millimeters to about 70 millimeters. The aerosol-generating article of any one of claims 1-9, wherein the thickness of the hollow tubular segment is at least about 100 micrometers. 11. The aerosol-generating article of any one of claims 1-10, wherein the hollow tubular segment at the vent zone has an equivalent inner diameter of at least about 4 millimeters. 12. The aerosol-generating article of any one of claims 1-11, wherein the RTD of the aerosol-generating article is from about 30 millimeters _H2O to about 90 millimeters _H2O . An aerosol-generating article according to any preceding claim, wherein said vent comprises a row of holes formed through said outer peripheral wall of said hollow tubular segment. The difference between the RTD of the aerosol-generating article having the highest RTD among the at least ten aerosol-generating articles and the RTD of the aerosol-generating article having the lowest RTD among the at least ten aerosol-generating articles is 10 _mm H2 A pack comprising at least ten aerosol-generating articles according to any one of claims 1-13, wherein O is less.