Aerosol generating article including a heat-conducting element and a surface treatment
There is provided an aerosol-generating article including a combustible heat source; an aerosol-forming substrate disposed in thermal communication with the combustible heat source; and a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component including an outer surface forming at least part of an outer surface of the aerosol-generating article, wherein at least a portion of the outer surface of the heat-conducting component includes a surface coating and has an emissivity of less than about 0.6. A method of manufacturing the aerosol-generating article is also provided.
1. An aerosol-generating article, comprising:
a combustible heat source;
an aerosol-forming substrate disposed in thermal communication with the combustible heat source; and
a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component comprising an outer surface forming at least part of an outer surface of the aerosol-generating article,
wherein at least a portion of the outer surface of the heat-conducting component comprises a surface coating and has an emissivity of less than about 0.6.
2. The aerosol-generating article according to claim 1 , wherein the emissivity of the outer surface of the heat-conducting component is less than about 0.5.
3. The aerosol-generating article according to claim 1 , wherein the emissivity of the outer surface of the heat-conducting component is greater than about 0.1.
4. The aerosol-generating article according to claim 1 , wherein the surface coating comprises a filler material comprising one or more materials selected from graphite, metal oxides, and metal carbonates.
5. The aerosol-generating article according to claim 1 , wherein the surface coating is discontinuous.
6. The aerosol-generating article according to claim 1 , wherein the heat conducting component further comprises a first heat-conducting element disposed around and in contact with a downstream portion of the combustible heat source and an adjacent upstream portion of the aerosol-forming substrate, and a second heat-conducting element disposed around at least a portion of the first heat-conducting element and comprising an outer surface forming at least part of the outer surface of the aerosol-generating article.
7. The aerosol-generating article according to claim 6 , wherein the second heat-conducting element is radially separated from the first heat-conducting element by at least one layer of a heat-insulating material extending around at least a portion of the first heat-conducting element between the first and second heat-conducting elements.
8. The aerosol-generating article according to claim 1 ,
wherein at least a portion of the outer surface of the heat-conducting component comprises a surface treatment, and
wherein the surface treatment comprises at least one of embossing, debossing, and combinations thereof.
9. The aerosol-generating article according to claim 1 , wherein the surface coating comprises at least one pigment.
10. The aerosol-generating article according to claim 1 , wherein the surface coating comprises a translucent material.
11. The aerosol-generating article according to claim 1 , wherein the surface coating comprises at least one of metal particles, metal flakes, or both the metal particles and the metal flakes.
12. The aerosol-generating article according to claim 1 , wherein the heat-conducting component comprises a metal foil.
13. A method of manufacturing an aerosol-generating article comprising a combustible heat source, an aerosol-forming substrate disposed in thermal communication with the combustible heat source, and a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component comprising an outer surface forming at least part of an outer surface of the aerosol-generating article, the method comprising applying a coating composition to at least a portion of the outer surface of the heat-conducting component such that a coated portion of the heat-conducting component has an emissivity of less than about 0.6.
14. The method according to claim 13 , wherein the coating composition includes a filler material, a binder, and a solvent.
15. The method according to claim 14 , wherein the filler material comprises one or more materials selected from graphite, metal oxides, and metal carbonates.