AEROSOL-GENERATING ARTICLE WITH HIGH AEROSOL FORMER CONTENT

Abstract

An aerosol-generating article is provided, including: a substrate portion containing an aerosol-forming substrate; and a connect portion disposed at one end of the aerosol-generating article in direct abutment with the substrate portion, the connect portion having a tubular empty core structure, the substrate portion having a length of between 20 millimeters and 60 millimeters, and a diameter of between 4 millimeters and 7 millimeters, the aerosol-forming substrate including an aerosol former, and an amount of the aerosol former ranges between 6 percent and 20 percent by weight on a dry weight basis of the aerosol-forming substrate. An aerosol-generating system including the aerosol-generating article and an aerosol-generating device, and a method for manufacturing the aerosol-generating article, are also provided.

Claims

1.-16. (canceled)

17. An aerosol-generating article, comprising: a substrate portion containing an aerosol-forming substrate; and a connect portion disposed at one end of the aerosol-generating article in direct abutment with the substrate portion, the connect portion having a tubular empty core structure, wherein the substrate portion has a length of between 20 millimeters and 60 millimeters, and a diameter of between 4 millimeters and 7 millimeters, wherein the aerosol-forming substrate comprises an aerosol former, and wherein an amount of the aerosol former ranges between 6 percent and 20 percent by weight on a dry weight basis of the aerosol-forming substrate.

18. An aerosol-generating article, comprising: a substrate portion containing an aerosol-forming substrate; and a connect portion, wherein the substrate portion has a length of between 20 millimeters and 60 millimeters, and a diameter of between 5 millimeters and 6 millimeters, wherein the aerosol-forming substrate comprises an aerosol former, wherein an amount of aerosol former ranges between 6 percent and 20 percent by weight on a dry weight basis of the aerosol-forming substrate, and wherein the connect portion has an external diameter between 5 millimeters and 6 millimeters, an internal diameter between 3.5 millimeters and 4.5 millimeters, and a length between 10 millimeters and 25 millimeters.

19. The aerosol-generating article according to claim 17, wherein the amount of aerosol former ranges between 8 percent and 15 percent by weight on a dry weight basis of the aerosol-forming substrate.

20. The aerosol-generating article according to claim 17, wherein the aerosol-generating article has a length of between 30 millimeters and 60 millimeters.

21. The aerosol-generating article according to claim 17, wherein the substrate portion has a diameter of between 5 millimeters and 6 millimeters.

22. The aerosol-generating article according to claim 17, wherein the aerosol-generating article further comprises a hollow acetate tube as the connect portion, downstream of the substrate portion.

23. The aerosol-generating article according to claim 22, wherein the connect portion has a length of between 10 millimeters and 25 millimeters.

24. The aerosol-generating article according to claim 22, wherein the aerosol-generating article further comprises a tipping paper arranged at least partly wrapped around the connect portion and the substrate portion to overlap the connect portion and the substrate portion, and wherein the tipping paper has a length of 15 millimeters to 30 millimeters.

25. The aerosol-generating article according to claim 22, wherein the connect portion is provided as a hollow acetate tube having an inner diameter of between 3 millimeters and 5 millimeters.

26. The aerosol-generating article according to claim 22, wherein the connect portion is provided as a hollow acetate tube having a wall thickness of between 0.4 millimeters and 0.8 millimeters.

27. The aerosol-generating article according to claim 17, wherein the aerosol-forming substrate is cut-filler, comprising strips of plant material.

28. The aerosol-generating article according to claim 27, wherein the cut-filler is at least 25 percent per weight of plant leaf lamina.

29. The aerosol-generating article according to claim 17, wherein a weight of the aerosol-forming substrate is between 80 milligrams and 400 milligrams.

30. The aerosol-generating article according to claim 17, wherein the aerosol former consists of glycerine, or propylene glycol, or any mixture thereof.

31. The aerosol-generating article according to claim 17, wherein a dense region of aerosol-forming substrate is provided at one of more of an upstream end and a downstream end of the substrate portion.

32. The aerosol-generating article according to claim 17, wherein the aerosol-generating article has a length of between 30 millimeters and 60 millimeters, and wherein the substrate portion is directly attached to the connect portion.

33. An aerosol-generating system, comprising: an aerosol-generating article according claim 17; and an aerosol-generating device, wherein the aerosol-generating device comprises a heating chamber, an external heating member arranged outside the heating chamber, or, an internal heating member arranged inside the heating chamber, or both an external heating member and an internal heating member, a controller configured to control a temperature profile of the external heating member, or of the internal heating member, or of both the external heating member and the internal heating member, and heat the aerosol-forming substrate of the aerosol-generating article to a temperature of between 150° C. and 200° C. in the heating chamber, and a power supply configured to power the external heating member, or the internal heating member, or both the external heating member and the internal heating member.

34. A method for manufacturing an aerosol-generating article according to claim 17, the method comprising the following steps: providing an aerosol-forming substrate; applying an aerosol former to the aerosol-forming substrate, wherein an amount of aerosol former ranges between 6 percent and 20 percent by weight on a dry weight basis of the aerosol-forming substrate; and shaping the aerosol-forming substrate as a substrate portion, wherein the substrate portion has a length of between 20 millimeters and 60 millimeters, and a diameter of between 4 millimeters and 7 millimeters.

Description

[0066] The invention will be further described, by way of example only, with reference to the accompanying drawings in which:

[0067] FIG. 1 shows a side view of an aerosol-generating article according to the present invention,

[0068] FIG. 2 shows a cross-section through an aerosol-generating article including a mouthpiece, and

[0069] FIG. 3 shows a cross-section through an aerosol-generating system of the present invention.

[0070] In FIG. 1 an aerosol-generating article 10 according to the present invention is depicted. The aerosol-generating article 10 comprises a substrate portion 12 and a connect portion 14 in the form of a hollow acetate tube. The hollow acetate tube is in direct abutment with the substrate portion 12. These two portions are connected together by a tipping paper 16 that extends over the complete connect portion 14 and a part of the substrate portion 12.

[0071] The substrate portion 12 has a length of 32 millimeters, and a diameter of 5.3 millimeters. The connect portion 14 has a length of 15 millimeters and also an external diameter of 5.3 millimeters. The internal diameter of the hollow acetate tube of the connect portion 14 amounts to 4 millimeters.

[0072] The tipping paper 16 has a length of 20 millimeters. The two-part aerosol-generating article 10 has an overall length of 45 millimeters. In order to prevent loose ends, the aerosol-forming substrate is provided with an increased substrate density at both ends of the substrate portion 12. The dense end 20 at the upstream end of the aerosol-generating article 10 prevents aerosol-forming substrate from falling out of the upstream end portion of the substrate portion 12. The dense end 22 at the downstream end of the substrate portion 12, provides this part of the substrate portion 12 with sufficient rigidity which helps to ensure good and solid attachment of the substrate portion 12 to the connect portion 14.

[0073] The connect portion 14 is configured to be connected in use of the aerosol-generating article 10 to a mouth piece 24 as can be seen in the cross-sectional view depicted in FIG. 2. Again the aerosol-generating article 10 comprises two portions, a substrate portion 12 and a connect portion 14 that are firmly attached with each other. The mouth piece 24 also comprises a connect portion 26 which is has an outer diameter that corresponds to the inner diameter of the connect portion of 14 of the aerosol-generating article 10. When attached together an air tight connection between the mouth piece 24 and the aerosol-generating article 10 is established.

[0074] The mouthpiece 24 has a central channel 28 that defines an air flow path for the generated aerosol. The diameter of the central channel 28 is progressively increasing along the air flow path. Due to the Venturi effect caused by this construction the mouthpiece 24 efficiently supports cooling of the aerosol.

[0075] In FIG. 3 a schematic cross-section of an aerosol-generating system 30 of the present invention is depicted. The aerosol generating system 30 comprises an aerosol-generating device 32 and an aerosol-generating article 10.

[0076] The aerosol-generating device 32 comprises a housing 34 in which a power source 36 and electronic circuitry 38 is located. The aerosol-generating device 32 further comprises a heating chamber 40 in which a heating element 42 is arranged.

[0077] As depicted in FIG. 3, the heating chamber 40 defines a cavity that is configured to receive the aerosol-generating article 10. When inserted into the heating chamber 40 the heating element 42 circumscribes the outer periphery of the aerosol-generating article 10. In the embodiment of FIG. 3 the heating element 42 is provided as an external heating element.