CA2576910A1 - Reconstituted tobacco sheet and smoking article therefrom - Google Patents

Reconstituted tobacco sheet and smoking article therefrom Download PDF

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Publication number
CA2576910A1
CA2576910A1 CA002576910A CA2576910A CA2576910A1 CA 2576910 A1 CA2576910 A1 CA 2576910A1 CA 002576910 A CA002576910 A CA 002576910A CA 2576910 A CA2576910 A CA 2576910A CA 2576910 A1 CA2576910 A1 CA 2576910A1
Authority
CA
Canada
Prior art keywords
tobacco
weight
cigarette
sheet
inner wrap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002576910A
Other languages
French (fr)
Other versions
CA2576910C (en
Inventor
John-Paul Mua
Luis Monsalud Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brown and Williamson Holdings Inc
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2700649A priority Critical patent/CA2700649C/en
Publication of CA2576910A1 publication Critical patent/CA2576910A1/en
Application granted granted Critical
Publication of CA2576910C publication Critical patent/CA2576910C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1857—Belt construction or driving means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/20—Reels; Supports for bobbins; Other accessories
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/40—Monitoring or fighting invasive species

Abstract

A smoking article having one or more reconstituted tobacco split inner wrap strips is described. One or more split inner wrap strips extend coaxially along the tobacco column between the inner surface of an outer wrap of cigarette paper and the tobacco column. The tobacco blend includes burley and a second tobacco, such as flue-cured, oriental, Maryland, or rare and exotic tobaccos, and combinations thereof. This blend improves burley smoke character without increasing Hoffman analyte levels, especially tobacco-specific nitrosamines (i.e.,TNSAs). A cigarette with an improved burley smoke character without increasing Hoffman analyte levels is also described.

Claims (63)

1. A process for making a bandcast tobacco sheet comprising the steps of preparing a slurry containing an aqueous solution and a solid mixture, said solid mixture having from about 30% to about 80% by weight of a tobacco blend, from about 5% to about 40% by weight wood pulp, from about 8% to about 40% by weight binder, wherein said tobacco blend is comprised of a first tobacco and a second tobacco, said first tobacco being burley which is at least about 30% by weight of said solid mixture, and said second tobacco being up to about 30% by weight of said solid mixture, said solid mixture being about 2% to about 10% by weight of said slurry;

casting said slurry onto a casting surface; and drying said slurry to form a sheet of bandcast tobacco.
2. The process of claim 1, wherein said second tobacco is selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof.
3. The process of claim 2, wherein said exotic tobacco is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
4. The process of claim 1, said drying being at about 180°F to about 220°F.
5. The process of claim 1, said tobacco blend being added to said slurry firstly, said wood pulp being added to said slurry secondly, and said binder being added to said slurry thirdly, each of said tobacco blend, wood pulp, and binder being dissolved or dispersed before adding a next of said tobacco blend, wood pulp, and binder.
6. The process of claim 1, including the addition of up to 30% by weight of menthol in said solid mixture.
7. The process of claim 1, wherein said binder is selected from the group consisting of an alginate, guar, xanthum, acacia, pectin, other gums, modified cellulose compounds, and hydrocolloid compounds.
8. The process of claim 7, said alginate being sodium alginate.
9. The process of claim 1, including the addition of a humectant.
10. The process of claim 9, said humectant being selected from the group consisting of glycerin and propylene glycol.
11. The process of claim 10, said glycerin being up to 30% by weight of said solid mixture.
12. The process of claim 1, further comprising:

cutting said sheet of bandcast tobacco into longitudinal strips; and inserting a plurality of said longitudinal strips of said bandcast tobacco into a cigarette adjacent a tobacco column.
13. A process for making a bandcast tobacco sheet comprising the steps of preparing a slurry including a solid mixture of wood pulp, binder, a humectant, a tobacco blend, and a flavoring, in an aqueous solution, said tobacco blend including a first tobacco and a second tobacco, said tobacco blend being from about 30% to about 80% by weight of said mixture and dispersed firstly into said aqueous solution, said wood pulp being from about 5% to about 40% by weight of said mixture and dispersed secondly into said aqueous solution, said binder being about 8% to about 40%
by weight of said mixture and dispersed thirdly into said aqueous solution, said humectant being up to about 30% by weight of said mixture and dispersed fourthly into said aqueous solution, and then up to about 30% by weight of menthol being dispersed lastly into said aqueous solution, said mixture being about 2% to 10% by weight of said slurry, wherein said first tobacco is burley which is at least about 30% by weight of said solid mixture and said second tobacco is up to about 30% by weight of said solid mixture;

casting said slurry onto a casting band, said casting band being maintained at from about 180°F to about 220°F; and, drying said slurry to form a sheet of bandcast tobacco.
14. The process of claim 13, wherein said second tobacco is selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof.
15. The process of claim 14, wherein said exotic is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
16. A process for making a paper tobacco sheet comprising the steps of:
extracting one part of solid mixture with from about 11 to about 20 parts of an aqueous solvent at from about 160°F to about 190°F for about 30 minutes, wherein said solid mixture is comprised of from about 30% by weight to about 80% by weight of a tobacco blend, said tobacco blend comprised of burley and a second tobacco, said second tobacco selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof, said burley being at least about 30% by weight of said solid mixture, and said second tobacco being up to about 30% by weight of said solid mixture;

separating a soluble extract from said solid mixture;
concentrating said soluble extract via vacuum evaporation;
refining said solid mixture;

mixing said solid mixture with greater than 10% pre-refined wood fibers;
forming a sheet over a wire with said solid mixture and drying; and reapplying said soluble extract to said sheet.
17. The process of claim 16, wherein said soluble extract is separated from said solid mixture via a process selected from the group consisting of centrifugation, filtration, and pressing.
18. The process of claim 16, further including treating said soluble extract with adsorbents prior to concentrating said soluble extract.
19. The process of claim 16, wherein a binder being from about 8% to about 40%
by weight of said solid mixture is added to said soluble extract after concentrating said soluble extract and prior to reapplying said soluble extract to said sheet.
20. The process of claim 19, wherein said binder is selected from the group consisting of alginate, guar, xanthum, acacia, pectin, other gums, modified cellulose compounds, and hydrocolloid compounds.
21. The process of claim 20, wherein said alginate is sodium alginate
22. The process of claim 16, said drying being at about 180°F to about 220°F.
23. The process of claim 16, including the addition of up to about 20% by weight of a humectant.
24. The process of claim 23, wherein said humectant is selected from the group consisting of glycerin and propylene glycol.
25. The process of claim 16, wherein said exotic tobacco is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
26. A bandcast tobacco sheet, comprised of from about 5% to 40% by weight of wood pulp, from about 8% to 40% by weight of binder, and from about 30% to 80%
by weight of a tobacco blend, wherein said tobacco blend is comprised of burley and a second tobacco, said burley being at least about 30% by weight of said bandcast tobacco sheet, said second tobacco being up to about 30% by weight of said bandcast tobacco sheet, and said second tobacco being selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof.
27. The sheet of claim 26, wherein menthol is about 20% by weight of said bandcast tobacco sheet.
28. The sheet of claim 26, wherein a humectant is up to about 30% by weight of said bandcast tobacco sheet.
29. The sheet of claim 28, said humectant selected from the group consisting of glycerin and propylene glycol.
30. The sheet of claim 29, said glycerin being approximately 13.5% by weight.
31. The sheet of claim 26, said binder selected from the group consisting of alginate, guar, xanthum, acacia, pectin, other gums, modified cellulose compounds, and hydrocolloid compounds.
32. The sheet of claim 31, said alginate being sodium alginate.
33. The sheet of claim 32, said sodium alginate being about 27% by weight.
34. The sheet of claim 26, said tobacco blend and said binder being in a ratio of from about 4.0:1.0 to about 1.0:1Ø
35. The sheet of claim 26, said bandcast tobacco sheet formed in a plurality of longitudinal bandcast split inner wrap strips, said strips inserted into a cigarette adjacent a column of tobacco.
36. The sheet of claim 35, wherein said plurality of longitudinal bandcast split inner wrap strips are a first and a second strip positioned equidistant from each other.
37. The sheet of claim 26, wherein said exotic tobacco is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
38. A cigarette comprising:

a tobacco column surrounded by an outer wrap paper; and, a partial inner wrap material extending longitudinally of said tobacco column and disposed between said outer wrap, said partial inner wrap material being one or more strips of a bandcast tobacco sheet which is comprised of from about 5% to about 40% by weight of wood pulp, from about 8% to about 40% by weight of binder, and from about 30% to about 80% by weight of tobacco blend, wherein said tobacco blend is further comprised of burley and a second tobacco, said burley being at least about 30%
by weight of said partial inner wrap material, and said second tobacco being up to about 30% by weight of said partial inner wrap material.
39. The cigarette of claim 38, wherein said second tobacco is selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof.
40. The cigarette of claim 39, wherein said exotic tobacco is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
41. The cigarette of claim 38, including up to about 30% by weight of menthol in said inner wrap.
42. The cigarette of claim 41, wherein said menthol is approximately 20% by weight of said inner wrap.
43. The cigarette of claim 38, including up to about 30% by weight of a humectant in said inner wrap.
44. The cigarette of claim 43, said humectant selected from the group consisting of glycerin and propylene glycol.
45. The cigarette of claim 44, said glycerin being approximately 13.5% by weight.
46. The cigarette of claim 38, said binder selected from the group consisting of alginate, guar, xanthum, acacia, pectin, other gums, modified cellulose compounds, and hydrocolloid compounds.
47. The cigarette of claim 46, said alginate being sodium alginate.
48. The cigarette of claim 47, said sodium alginate being about 27% by weight.
49. The cigarette of claim 38, said tobacco blend and said binder being in a ratio of from about 4. 0 to 1.0 to about 1.0 to 1. 0.
50. A cigarette with a burn rate modification, comprising:
a tobacco column surrounded by an outer wrap paper;

a tobacco inner wrap material coaxial to said tobacco column, said tobacco inner wrap material being less than about 15mm in width and including a tobacco blend, said tobacco blend comprised of burley and a second tobacco, said burley being at least about 30% by weight of said tobacco inner wrap material, and said second tobacco being up to about 30% by weight of said tobacco inner wrap material.
51. The cigarette of claim 50, wherein said outer wrap paper has a porosity of greater than about 15 CORESTA Units and said tobacco inner wrap material has a porosity of less than 10 CORESTA Units.
52. The cigarette of claim 51, wherein said tobacco inner wrap material has a porosity of less than 7 CORESTA Units.
53. The cigarette of claim 50, wherein said tobacco inner wrap material has a first tobacco inner wrap strip and a second tobacco inner wrap strip.
54. The cigarette of claim 53, wherein said first tobacco inner wrap strip and said second tobacco inner wrap strip are each about 5 mm wide.
55. The cigarette of claim 53, wherein said first tobacco inner wrap strip and said second tobacco inner wrap strip are each about 4 mm or less in linear width.
56. The cigarette of claim 50, wherein said tobacco inner wrap material is a bandcast based tobacco material.
57. The cigarette of claim 50, wherein said tobacco inner wrap material is between about 2mm and 15mm in width and has a porosity of less than 1 CORESTA Unit.
58. The cigarette of claim 50, wherein said tobacco inner wrap material comprises a plurality of tobacco inner wrap strips coaxial to said tobacco column.
59. The cigarette of claim 50, wherein said tobacco inner wrap material is a reconstituted tobacco material.
60. The cigarette of claim 50, wherein said tobacco inner wrap material is a polymer based material.
61. The cigarette of claim 50, wherein said tobacco inner wrap material is positioned away from an overwrap seam of said outer wrap paper.
62. The cigarette of claim 50, wherein said second tobacco is selected from the group consisting of flue-cured tobacco, oriental tobacco, Maryland tobacco, exotic tobacco, and combinations thereof.
63. The cigarette of claim 62, wherein said exotic tobacco is selected from the group consisting of Izmar tobacco, Samsun tobacco, Yaka tobacco, Latakia tobacco, Perique tobacco, Cavendish tobacco, Rustica tobacco, Fire-cure tobacco, Dark or Sun-cure tobacco, and combinations thereof.
CA2576910A 2004-08-18 2005-08-04 Reconstituted tobacco sheet and smoking article therefrom Expired - Fee Related CA2576910C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2700649A CA2700649C (en) 2004-08-18 2005-08-04 Reconstituted tobacco sheet and smoking article therefrom

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/920,466 US20050039767A1 (en) 2002-11-19 2004-08-18 Reconstituted tobacco sheet and smoking article therefrom
US10/920,466 2004-08-18
PCT/US2005/027675 WO2006023281A2 (en) 2004-08-18 2005-08-04 Reconstituted tobacco sheet and smoking article therefrom

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2700649A Division CA2700649C (en) 2004-08-18 2005-08-04 Reconstituted tobacco sheet and smoking article therefrom

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CA2576910A1 true CA2576910A1 (en) 2006-03-02
CA2576910C CA2576910C (en) 2010-07-06

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Country Status (16)

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US (2) US20050039767A1 (en)
EP (1) EP1786283A2 (en)
JP (1) JP4814883B2 (en)
KR (1) KR100904333B1 (en)
CN (2) CN101039597A (en)
AR (2) AR050460A1 (en)
AU (1) AU2005277703C1 (en)
BR (1) BRPI0514465A (en)
CA (2) CA2700649C (en)
CL (1) CL2009001744A1 (en)
MX (1) MX2007001898A (en)
MY (2) MY146918A (en)
RU (1) RU2346629C2 (en)
UA (1) UA88318C2 (en)
WO (1) WO2006023281A2 (en)
ZA (1) ZA200701116B (en)

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