Aerosol-generating article with an isolated aversive component

Abstract

There is provided an aerosol-generating article (10), particularly for generating an inhalable aerosol upon heating, the aerosol-generating article (10) comprising: an aerosol-generating substrate (12); a downstream section (14) extending from a downstream end of the aerosol-generating substrate (12) to a downstream end of the aerosol-generating article (10), wherein the downstream section (14) defines an airflow pathway through which an aerosol may flow from the aerosol-generating substrate (12) to the downstream end of the aerosol-generating article (10); at least one wrapper (30) circumscribing at least a portion of at least one of the aerosol-generating substrate (12) and the downstream section (14); and an aversive component (50) comprising a thread substrate or a strip substrate and an aversive agent absorbed in the thread substrate or strip substrate. The aerosol-generating article is configured such that the aversive component (50) is isolated from the airflow pathway such that the aversive agent is substantially prevented from entering the airflow pathway.

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, wherein the downstream section defines an airflow pathway through which an aerosol may flow from the aerosol-generating substrate to the downstream end of the aerosol-generating article;   at least one wrapper circumscribing at least a portion of at least one of the aerosol-generating substrate and the downstream section; and   an aversive component comprising a thread substrate or a strip substrate and an aversive agent absorbed in the thread substrate or strip substrate;   the aerosol-generating article configured such that the aversive component is not directly exposed to the airflow pathway such that the aversive agent is substantially prevented from entering the airflow pathway.   
     
     
         2 . The aerosol-generating article according to  claim 1 , wherein the aversive agent comprises at least one of denatonium benzoate (bitrex), columbin, amarogentin, quassin, absinthin, and quinine hydrochloride. 
     
     
         3 . The aerosol-generating article according to  claim 1 , wherein the aversive agent is provided in a concentration of at least 2 parts per million. 
     
     
         4 . The aerosol-generating article according to  claim 1 , wherein the at least one wrapper comprises a radially inner wrapper portion and a radially outer wrapper portion, the radially outer wrapper portion overlapping the radially inner wrapper portion, wherein the aversive component is disposed between the radially inner wrapper portion and the radially outer wrapper portion. 
     
     
         5 . The aerosol-generating article according to  claim 4 , further comprising at least one ventilation zone to allow air to enter the aerosol-generating article, the ventilation zone comprises a first row of perforations provided through the at least one wrapper. 
     
     
         6 . The aerosol-generating article according to  claim 5 , wherein the at least one ventilation zone is provided about the downstream section and comprises a first row of perforations provided through the at least one wrapper, the first row of perforations including a break where the aversive component is provided such that no perforations are provided through the aversive component. 
     
     
         7 . The aerosol-generating article according to  claim 4 , wherein the radially inner wrapper portion and the radially outer wrapper portion are part of a tipping paper, part of an outer wrapping paper, part of a combining plug wrap, or part of a plug wrap surrounding a component of the aerosol-generating article. 
     
     
         8 . The aerosol-generating article according to  claim 4 , wherein the radially inner wrapper portion is part of a first wrapper, and the radially outer wrapper portion is part of a second wrapper, the aversive component being provided where the first wrapper and the second wrapper overlap. 
     
     
         9 . The aerosol-generating article according to  claim 8 , wherein the first wrapper comprising the radially inner wrapper portion is an outer wrapping paper, a combining plug wrap, or a plug wrap surrounding a component of the aerosol-generating article. 
     
     
         10 . The aerosol-generating article according to  claim 8 , wherein the second wrapper comprising the radially outer wrapper portion is an outer wrapping paper, a combining plug wrap, or a tipping paper. 
     
     
         11 . The aerosol-generating article according to  claim 4 , wherein the aversive component is attached to at least one of the radially inner wrapper portion and the radially outer wrapper portion using an adhesive. 
     
     
         12 . The aerosol-generating article according to  claim 1 , wherein the downstream section comprises a tubular segment comprising a wall and a hollow lumen delimited by the wall and defining an airflow channel extending from an upstream end of the tubular segment to a downstream end of the tubular segment, the aversive component being embedded in the wall of the tubular segment. 
     
     
         13 . The aerosol-generating article according to  claim 12 , wherein a diameter of the hollow lumen is at least 45 percent of a total external diameter of the downstream section. 
     
     
         14 . The aerosol-generating article according to  claim 1 , wherein the thread substrate is generally aligned with the longitudinal axis of the aerosol-generating article. 
     
     
         15 . The aerosol-generating article according to  claim 1 , further comprising an outer wrapping paper, the outer wrapping paper including an impermeable coating to prevent aversive agent from migrating to the outer surface of the aerosol-generating article.