Aerosol-generating article comprising a flame-retardant

An aerosol-generating article for producing an inhalable aerosol upon heating, the aerosol-generating article comprising:

• a rod of aerosol-generating substrate, the aerosol-generating substrate comprising at least an aerosol-former, wherein the aerosol-generating substrate has an aerosol former content of at least about 10 percent on a dry weight basis;
• a downstream section at a location downstream of the rod of aerosol-generating substrate;
• and
• a wrapper circumscribing at least the rod of aerosol-generating substrate,
• wherein a density of the aerosol-generating substrate is greater than about 300 milligrams per cubic centimeter, and
• wherein the wrapper comprises a flame retardant composition comprising one or more flame retardant compounds.

A method of manufacturing an aerosol-generating article for generating an inhalable aerosol upon heating, the method comprising:

• providing a continuous rod of aerosol-generating substrate, wherein a density of the aerosol-generating substrate is greater than about 300 milligrams per cubic centimeter, the aerosol-generating substrate comprises at least an aerosol-former, and the aerosol-generating substrate has an aerosol former content of at least about 10 percent on a dry weight basis;
• circumscribing the continuous rod of aerosol-generating substrate with a wrapper comprising a flame retardant composition comprising one or more flame retardant compounds;
• and
• cutting the circumscribed continuous rod into discrete rods, each discrete rod being circumscribed by a portion of the wrapper comprising the flame retardant composition.