Rods for use in smoking articles

Patent metadata

Field	Value
Publication number	US-9930910-B2
Application number	US-201214123166-A
Country	US
Kind code	B2
Filing date	May 31, 2012
Priority date	May 31, 2011
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A rod for use in a smoking article is provided, the rod including a gathered sheet of homogenized tobacco material circumscribed by a wrapper. The sheet may include one or more aerosol-formers and have an aerosol-former content of greater than 5% on a dry weight basis or of between 5% and 30% by weight on a dry weight basis. The rod may include a continuous element to which one or more additives have been applied, which is incorporated into the gathered continuous sheet of homogenized tobacco material. A method of forming the rod includes providing a continuous sheet of homogenized tobacco material; gathering the continuous sheet transversely relative to the longitudinal axis thereof; circumscribing the gathered continuous sheet with a wrapper to form a continuous rod; and severing the continuous rod into a plurality of discrete rods. The sheet is preferably crimped or otherwise textured.

First claim

The invention claimed is:

1. A heated smoking article for an electrically heated aerosol-generating system, the article comprising an aerosol-generating substrate,
wherein the aerosol-generating substrate comprises a rod including a gathered sheet of homogenised tobacco material circumscribed by a wrapper,
wherein the sheet of homogenised tobacco material is crimped, the crimped sheet of homogenised tobacco material comprising a plurality of substantially parallel ridges or corrugations that are substantially evenly spaced-apart across the width of the sheet of homogenised tobacco material,
wherein the sheet of homogenised tobacco material is cast leaf tobacco and has a tobacco content of at least 50% by weight on a dry weight basis and has an aerosol former content of between 5% by weight and 30% by weight on a dry weight basis, and
wherein the rod has a length of between 5 mm and 20 mm.

2. The heated smoking article according to claim 1 , wherein the sheet of homogenised tobacco material has a width of at least about 25 mm.

3. The heated smoking article according to claim 1 , wherein the sheet of homogenised tobacco material has a thickness of between 50 μm and 300 μm.

4. The heated smoking article according to claim 1 , wherein the aerosol-generating substrate further comprises a thread, yarn, tape, or filament to which one or more additives have been applied, the thread, yarn, tape, or filament being incorporated into the gathered sheet of homogenised tobacco material.

5. The heated smoking article of claim 1 , wherein the sheet of homogenised tobacco material has a grammage of between 100 g/m 2 and 300 g/m 2 .

6. The heated smoking article of claim 1 , wherein the sheet of homogenised tobacco material has a tobacco content of 70% or more on a dry weight basis.

7. The heated smoking article of claim 2 , wherein the sheet of homogenised tobacco material has a width of between 110 mm and 134 mm.

8. The heated smoking article of claim 1 , wherein the diameter of the rod is between 6.9 mm and 7.2 mm.

9. The heated smoking article of claim 1 , wherein the length of the rod is 12 mm.

10. A heated smoking article for an electrically heated aerosol-generating system, the article comprising an aerosol-generating substrate,
wherein the aerosol-generating substrate comprises a rod includes a gathered sheet of homogenised tobacco material having a width of between 110 mm and 134 mm circumscribed by a wrapper, the rod having a diameter of between 6.9 mm and 7.2 mm and a length of 12 mm,
wherein the sheet of homogenised tobacco material is crimped, the crimped sheet of homogenised tobacco material comprising a plurality of substantially parallel ridges or corrugations that are substantially evenly spaced-apart across the width of the sheet of homogenised tobacco material,
wherein the sheet of homogenised tobacco material is cast leaf tobacco and has a tobacco content of at least 50% by weight on a dry weight basis and has an aerosol former content of between 5% by weight and 30% by weight on a dry weight basis.

11. A heated smoking article according to claim 10 , wherein the sheet of homogenised tobacco material has a thickness of between 120 micron and 260 micron.

12. A heated smoking article according to claim 10 , wherein the sheet of homogenised tobacco material has a grammage of between 167 g/m 2 and 201 g/m 2 .

Assignees

• Gindrat Pierre Yves
• Philip Morris Products Sa

Inventors

• Gindrat Pierre-Yves

Classifications

• A24F25/00

  Devices used by the smoker for controlling the moisture content of, or for scenting, cigars, cigarettes or tobacco · CPC title

• A24D3/14

  of organic materials as additive (of ion exchange materials A24D3/12) · CPC title

• A24D3/06

  Use of materials for tobacco smoke filters · CPC title

• A24D3/04

  Tobacco smoke filters characterised by their shape or structure · CPC title

• A24D3/02

  Manufacture of tobacco smoke filters · CPC title