Aerosol generating article with front end plug
An aerosol-generating article is provided, including: an aerosol-generating substrate; a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article; and an upstream section extending from an upstream end of the aerosol-generating substrate to an upstream end of the aerosol-generating article, a ratio of a resistance-to-draw of the upstream section to a resistance-to-draw of the downstream section being more than 1, and the resistance-to-draw of the upstream section being no more than 150 mm H 2 O. An aerosol-generating system including an aerosol-generating device including a heater, and an aerosol-generating article, is also provided.
1 . An aerosol-generating article, comprising:
an aerosol-generating substrate;
a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article; and
an upstream section extending from an upstream end of the aerosol-generating substrate to an upstream end of the aerosol-generating article,
wherein a ratio of a resistance-to-draw of the upstream section to a resistance-to-draw of the downstream section is more than 1, and
wherein the resistance-to-draw of the upstream section is no more than 150 mm H 2 O.
2 . The aerosol-generating article according to claim 1 , wherein the resistance-to-draw of the downstream section is less than 150 mm H 2 O.
3 . The aerosol-generating article according to claim 1 , wherein the resistance-to-draw of the upstream section is at least 5 mm H 2 O.
4 . The aerosol-generating article according to claim 1 , wherein the resistance-to-draw of the upstream section is between 5 mm H 2 O and 80 mm H 2 O.
5 . The aerosol-generating article according to claim 1 , wherein the upstream section comprises a plug comprising cellulose acetate.
6 . The aerosol-generating article according to claim 5 , wherein the plug comprising cellulose acetate abuts the upstream end of the aerosol-generating substrate.
7 . The aerosol-generating article according to claim 1 , wherein the upstream section has a length of between 1 millimetre and 15 millimetres.
8 . The aerosol-generating article according to claim 1 , wherein a total resistance-to-draw of the aerosol-generating article is between 1 mm H 2 O and 25 mm H 2 O.
9 . The aerosol-generating article according to claim 1 , wherein the downstream section comprises an unobstructed airflow pathway from the downstream end of the aerosol-generating substrate to the downstream end of the downstream section.
10 . The aerosol-generating article according to claim 9 , wherein the unobstructed airflow pathway from the downstream end of the aerosol-generating substrate to the downstream end of the downstream section has a minimum diameter of 3 millimetres.
11 . The aerosol-generating article according to claim 1 , wherein the downstream section comprises a hollow tubular element.
12 . The aerosol-generating article according to claim 1 , wherein the downstream section has a length of at least 15 millimetres.
13 . The aerosol-generating article according to claim 1 , wherein the downstream section comprises a first ventilation zone configured to provide ventilation into the downstream section.
14 . The aerosol-generating article according to claim 13 , wherein the first ventilation zone comprises a first line of perforation holes circumscribing the downstream section.
15 . An aerosol-generating system, comprising,
an aerosol-generating device comprising a heater; and
an aerosol-generating article according to claim 1 .
16 . An aerosol-generating article, comprising:
an aerosol-generating substrate;
a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article; and
an upstream section extending from an upstream end of the aerosol-generating substrate to an upstream end of the aerosol-generating article,
wherein the upstream section comprises a plug made of a filter material,
wherein the plug made of a filter material abuts the upstream end of the aerosol-generating substrate,
wherein a ratio of a resistance-to-draw of the upstream section to a resistance-to-draw of the downstream section is more than 1, and
wherein the resistance-to-draw of the upstream section is no more than 150 mm H 2 O.
17 . An aerosol-generating article, comprising:
an aerosol-generating substrate;
a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article; and
an upstream section extending from an upstream end of the aerosol-generating substrate to an upstream end of the aerosol-generating article,
wherein the upstream section comprises a plug comprising cellulose acetate,
wherein the plug comprising cellulose acetate abuts the upstream end of the aerosol-generating substrate,
wherein a ratio of a resistance-to-draw of the upstream section to a resistance-to-draw of the downstream section is more than 1, and
wherein the resistance-to-draw of the upstream section is no more than 150 mm H 2 O.