US3759267A - Smoking articles - Google Patents

Smoking articles Download PDF

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Publication number
US3759267A
US3759267A US00248743A US24874372A US3759267A US 3759267 A US3759267 A US 3759267A US 00248743 A US00248743 A US 00248743A US 24874372 A US24874372 A US 24874372A US 3759267 A US3759267 A US 3759267A
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US
United States
Prior art keywords
cigarette
tobacco
portions
relation
delivery
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.)
Expired - Lifetime
Application number
US00248743A
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English (en)
Inventor
R Thornton
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
Original Assignee
Brown and Williamson Tobacco Corp
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 Brown and Williamson Tobacco Corp filed Critical Brown and Williamson Tobacco Corp
Application granted granted Critical
Publication of US3759267A publication Critical patent/US3759267A/en
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    • 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
    • A24D1/18—Selection of materials, other than tobacco, suitable for smoking
    • 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
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes

Definitions

  • ABSTRACT A cigarette having a filling which includes a first portion of shredded natural tobacco and a second portion, of different constitution, comprising shredded natural tobacco, reconstituted tobacco, tobacco substitute and/or filler.
  • the said portions adjoin each other at a surface inclined in relation to the axis of the article.
  • the two portions may be wedge shaped and adjoin each other at a plane inclined in relation to the longitudinal axis of the article.
  • one portion is a core of conical or frusto-conical shape and is surrounded by the other portion.
  • This invention concerns improvements relating to smoking articles of the nature of cigarettes, cigarillos, cigars and pipe charges. It is applicable with particular advantage to cigarettes.
  • a smoking article has a filling which includes a first portion of shredded natural tobacco and a second portion of different constitution, comprising shredded natural tobacco, reconstituted tobacco, tobacco substitute and/or filler, the said portions adjoining each other at a surface inclined in relation to the axis of the cigarette.
  • the article is preferably of conventional overall dimensions and wrapped in conventional manner, for example in cigarette paper.
  • the two portions adjoin at a plane inclined in relation to the axis, thus forming two wedge-shaped portions of equal or unequal size.
  • one said portion is a core of conical or frusto-conical shape and is surrounded by the other portion.
  • FIGS. 1 to 3 are diagrammatic longitudinal sections through three such embodiments:
  • the filling of the cigarette 1 shown in FIG. 1, which has a normal paper wrapper 2, comprises two wedgeshaped portions 3 and 4 which adjoin each other at a plane 5 inclined in relation to the longitudinal central axis of the cigarette.
  • the plane 5 extends to the two ends of the cigarette which it intersects at diametrically opposite points.
  • the two portions 3 and 4, which are thus of equal volume consist of different shredded materials one of which is natural tobacco and the other a reconstituted tobacco, a tobacco substitute, a filler, a natural tobacco different from the first-named tobacco or a mixture of any two or more of the materials referred to.
  • the portion 3 has the filling of the first named, natural tobacco and the portion 4 the filling of the other material.
  • a cigarette can be smoked from either end.
  • the plane 5 need not extend to the ends of the cigarette. As shown for the cigarette 7 in FIG. 2, the intersection may be at points short of the said ends. The intersection may be equally or unequally short of the two ends. Indeed, at one end, the plane 5 may extend to the end of the cigarette as in FIG.1. If the plane 5 is symmetrical in relation to the two ends, the volumes of the portions 3,4 will be equal. An. asymmetrical arrangement allows of the selection of portions 3,4 of different volumes in order to select the delivery of the smoke components in predetermined manner. Generally the portion 3 will preferably have the larger volume.
  • the two portions'3 and 4 are separated by the surface of a cone or, as shown, of a frustum of a cone.
  • the cone or frustum may terminate short of either end of the cigarette.
  • the cone surface 9 intersects the circumference of the cigarette at one end and intersects the other end in a circular end region 10.
  • Such a cigarette can be smoked from either end, but preferably from the end 6.
  • the portions 3 and 4 have different fillings, as described above.
  • the core portion 3 of frusto-conical shape contains natural tobacco, while the portion 4 complementing the core within the cylindrical wrapper 2 contains reconstituted tobacco, tobacco substitute and/or filler.
  • the volumes of the portions 3 and 4 may again be selected to select the delivery of the smoke components.
  • a paper wrapper of the shape of the surface 9 may separate the portions 3,4.
  • the surface 9 need not be strictly that of a right-circular zone.
  • the surface may, for example be slightly concave or convex. In all of the examples, the cigarette may be of slightly oval cross section.
  • Cigarettes of the kind illustrated in FIG. 1 have been tested for the delivery of particular smoke constituents.
  • the cigarettes tested were machine made to a length of mm and a circumference of 25 mm.
  • Smoking was carried out under standard machine-smoking conditions, namely to a 23 mm butt length at a rate of l puff of 2 seconds duration every minute, and 35 ml volume.
  • the portion 3 of the cigarette 1 contained shredded natural tobacco and the portion 4 a filler which would be non-combustible by itself and consisted-of 76 percent by weight of calcium carbonate, 7 percent of carboxymethyl cellulose as binder, 2 percent of glycerol and 15 percent of tobacco extract.
  • a dispersion in the form of a slurry was prepared, which was dried and cut to shred form.
  • a control cigarette of the same dimensions was filled with an intimate mixture of percent of the same tobacco and 25 percent of the same filler. This proportion was selected to take account of the unsmoked 23 mm butt. As may be seen from FIG. 1, in which the butt length is indicated at 11, a substantially greater proportion of tobacco from 3 than of filler from 4 will be burnt when smoking is terminated at the said butt length. The aforesaid proportions were selected to compensate for this difference and to ensure substantially the same nicotine delivery in the two cases. It was found that the total particulate matter (TPM) passed by the test cigarette was 22 mg per cigarette as compared with 28 mg for the control cigarette, while the nicotine delivery was the same at 1.55 mg. This test shows that the TPM can be reduced, while the nicotine delivery is kept constant.
  • TPM total particulate matter
  • a similar test cigarette I had the portion 3 filled with natural tobacco and the portion 4 with a known reconstituted tobacco made in sheet form by a papermaking process and containing 50 percent chalk filler.
  • a control cigarette was filled with an intimate mixture of equal proportions of the same natural tobacco and reconstituted tobacco.
  • the total delivery of nicotine alkaloids by the test cigarette was found to be 2.l mg per cigarette, as compared with 1.7 mg for the control cigarette.
  • a similar cigarette 1 was prepared except that the portion 4 contained a known synthetic smoking material.
  • a control cigarette contained an intimate mixture of equal proportions of the same constituents. The delivery of nicotine alkaloids was 2.2 mg per test cigarette as compared with 1.7 for the control cigarette.
  • test 2 A test similar to test 2 was carried out with a cigarette having the same external dimensions and constituents, but of the kind described with reference to FIG. 2, the plane 9 terminating mm short of each end of the cigarette.
  • the delivery of nicotine alkaloids was again 2.1 mg, as compared with 1.7 for the control cigarette.
  • Tests 2, 3 and 4 show that the delivery of total nicotine alkaloids can be increased for a given total amount of tobacco in the cigarette, thus providing a means for increasing the transfer of nicotine to the smoke without recourse to chemical additives.
  • TPM Deliveries (mg) Test Control Puffs l and 2 6 v 4 3 and 4 6 6 5 and 6 6 8 7 and 8 7 8
  • the TPM delivery remained almost constant through the smoking of thecigarette, in contrast with an appreciable increase in the case of the control cigarette.
  • a cigarette having the same form and constituents as in Test 1 was found to give a delivery of hydrogen cyanide of 500mg as compared with a delivery of 590p.g from a control cigarette containing an intimate mixture of equal proportions of the same constituents. It is apparent that the delivery of vapor-phase smoke constituents, as measured by the hydrogen-cyanide delivery, can be substantially reduced.
  • the portion 3 contained tobacco and the portion 4 the aforesaid non-combustible filler, the proportions of these constituents being 76 to 24.
  • a control cigarette of the same external dimensions contained an intimate mixture of the same constituents in the same proportions.
  • the delivery of T.P.M. was 19 mg in the case of the test cigarette and 27 mg in that of the control cigarette.
  • the invention provides a simple readily applicable means for selecting these deliveries in a predeterminable manner.
  • cigarettes such as have been described may be provided with a filter or mouthpiece.
  • a cigarette having a filling consisting of two portions, each of which extends continuously throughout the length of said filling, namely, a first portion of shredded natural tobacco and a second portion, of different constitution, selected from the group consisting of shredded reconstituted tobacco, tobacco substitute and filler, the portions adjoining each other at a surface inclined in relation to the axis of the cigarette with percent of the first portion material at the end remote from the end to be nearer to the smokers mouth and 100 percent of the second portion material at the end to be nearer to the smokers mouth, whereby selected delivery of the smoke components is achieved throughout smoking of the cigarette.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US00248743A 1971-05-18 1972-04-28 Smoking articles Expired - Lifetime US3759267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1558071A GB1340100A (en) 1971-05-18 1971-05-18 Smoking articles

Publications (1)

Publication Number Publication Date
US3759267A true US3759267A (en) 1973-09-18

Family

ID=10061669

Family Applications (1)

Application Number Title Priority Date Filing Date
US00248743A Expired - Lifetime US3759267A (en) 1971-05-18 1972-04-28 Smoking articles

Country Status (12)

Country Link
US (1) US3759267A (fr)
AU (1) AU463494B2 (fr)
BE (1) BE783615A (fr)
BR (1) BR7203096D0 (fr)
CA (1) CA950311A (fr)
CH (1) CH559011A5 (fr)
DE (1) DE2223691A1 (fr)
DK (1) DK127908B (fr)
FR (1) FR2139356A5 (fr)
GB (1) GB1340100A (fr)
NL (1) NL7206570A (fr)
ZA (1) ZA722753B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880171A (en) * 1971-12-09 1975-04-29 Brown & Williamson Tobacco Production of smoking articles
US3902504A (en) * 1973-09-26 1975-09-02 Olin Corp Engineered cigarette
US4219031A (en) * 1979-03-05 1980-08-26 Philip Morris Incorporated Smoking product having core of fibrillar carbonized matter
US4595024A (en) * 1984-08-31 1986-06-17 R. J. Reynolds Tobacco Company Segmented cigarette
US4630618A (en) * 1982-08-05 1986-12-23 Imperial Group Plc Apparatus and method for forming a rod of smokeable material
US4700726A (en) * 1986-05-02 1987-10-20 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4716913A (en) * 1985-05-15 1988-01-05 Rothmans Of Pall Mall Limited Composite cigarettes
US4730628A (en) * 1986-07-21 1988-03-15 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4759380A (en) * 1986-11-03 1988-07-26 R. J. Reynolds Tobacco Company Filter cigarette having segmented sections
AU586055B2 (en) * 1985-12-04 1989-06-29 Rothmans of Pall Mall Ltd. Sculptured cigarette
US5115823A (en) * 1990-12-20 1992-05-26 Philip Morris Incorporated Flavor-enhancing smoking filter
GB2355643A (en) * 1999-11-01 2001-05-02 Lloyd Murphy Cigarette
US6708695B2 (en) 1999-12-01 2004-03-23 Barry Smith Fagg Cigarette rod product with different densities
US20060254607A1 (en) * 2005-03-21 2006-11-16 Philip Morris Usa Inc. Smoking article comprising a segmented rod of smokable material

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2227920A1 (de) * 1972-06-08 1973-12-20 Bayer Ag Substituierte benzimidazol-2-yl-carbaminsaeure-ketonoximester, verfahren zu ihrer herstellung und ihre fungizide und mikrobizide verwendung
US4434804A (en) * 1980-06-21 1984-03-06 Imperial Group Limited Smoking article
AU3328984A (en) * 1983-10-03 1985-04-18 Tobacco Research And Development Institute Limited Cigarette filter
US5074321A (en) * 1989-09-29 1991-12-24 R. J. Reynolds Tobacco Company Cigarette
GB8916137D0 (en) * 1989-07-14 1989-08-31 Rothmans Int Tobacco Cigarettes
WO2000016649A1 (fr) * 1998-09-24 2000-03-30 Mihail Borisovich Smola Cigarette

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880171A (en) * 1971-12-09 1975-04-29 Brown & Williamson Tobacco Production of smoking articles
US3902504A (en) * 1973-09-26 1975-09-02 Olin Corp Engineered cigarette
US4219031A (en) * 1979-03-05 1980-08-26 Philip Morris Incorporated Smoking product having core of fibrillar carbonized matter
US4630618A (en) * 1982-08-05 1986-12-23 Imperial Group Plc Apparatus and method for forming a rod of smokeable material
US4595024A (en) * 1984-08-31 1986-06-17 R. J. Reynolds Tobacco Company Segmented cigarette
US4716913A (en) * 1985-05-15 1988-01-05 Rothmans Of Pall Mall Limited Composite cigarettes
AU589962B2 (en) * 1985-05-15 1989-10-26 Rothmans of Pall Mall Ltd. Composite cigarettes
AU586055B2 (en) * 1985-12-04 1989-06-29 Rothmans of Pall Mall Ltd. Sculptured cigarette
US4700726A (en) * 1986-05-02 1987-10-20 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4730628A (en) * 1986-07-21 1988-03-15 R. J. Reynolds Tobacco Company Cigarette rods having segmented sections
US4759380A (en) * 1986-11-03 1988-07-26 R. J. Reynolds Tobacco Company Filter cigarette having segmented sections
US5115823A (en) * 1990-12-20 1992-05-26 Philip Morris Incorporated Flavor-enhancing smoking filter
GB2355643A (en) * 1999-11-01 2001-05-02 Lloyd Murphy Cigarette
US6708695B2 (en) 1999-12-01 2004-03-23 Barry Smith Fagg Cigarette rod product with different densities
US20060254607A1 (en) * 2005-03-21 2006-11-16 Philip Morris Usa Inc. Smoking article comprising a segmented rod of smokable material

Also Published As

Publication number Publication date
DK127908B (da) 1974-02-04
BE783615A (fr) 1972-09-18
CA950311A (en) 1974-07-02
ZA722753B (en) 1973-01-31
GB1340100A (en) 1973-12-05
FR2139356A5 (fr) 1973-01-05
DE2223691A1 (de) 1972-11-30
NL7206570A (fr) 1972-11-21
BR7203096D0 (pt) 1973-09-13
AU4164772A (en) 1973-11-01
AU463494B2 (en) 1975-07-31
CH559011A5 (fr) 1975-02-28

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