EP0365882B1 - Koaxialcigarette - Google Patents
Koaxialcigarette Download PDFInfo
- Publication number
- EP0365882B1 EP0365882B1 EP89118398A EP89118398A EP0365882B1 EP 0365882 B1 EP0365882 B1 EP 0365882B1 EP 89118398 A EP89118398 A EP 89118398A EP 89118398 A EP89118398 A EP 89118398A EP 0365882 B1 EP0365882 B1 EP 0365882B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheath
- coaxial cigarette
- inner core
- coaxial
- cigarette according
- 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
Links
Images
Classifications
-
- 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
- the invention relates to a coaxial cigarette of the type specified in the preamble of claim 1.
- coaxial smokable articles ie in particular coaxial cigars or cigarettes with an inner core which is surrounded by a jacket made of tobacco material.
- the basic principle of such a coaxial cigarette is known, for example, from FR-PS 998 556, the inner core consisting of a tobacco of lower quality, which is surrounded by an annular jacket made of tobacco of high quality. This allows savings to be made in terms of the cost of the tobacco materials used.
- a coaxial cigarette of the type specified is known, for example, from DE-OS 36 02 846 and has an inner core made of a residue-free material, in particular tobacco material, a covering for the inner core, an outer jacket coaxially surrounding the inner core of a tobacco and / or not Tobacco material and a covering for the outer jacket.
- the particular advantage of this coaxial cigarette is that it can be manufactured using customary manufacturing techniques on specially modified extruders.
- the invention is therefore based on the object of providing a coaxial cigarette of the type specified, in which the disadvantages mentioned above do not occur.
- a coaxial cigarette which, even without a filter, provides a nicotine-free dry condensate of less than 15 mg per cigarette under standard smoking conditions, while at the same time offering a satisfactory amount of smoke per train and significantly lower CO yield per train and a reduction in the unit of time during the train break Secondary smoke.
- the advantages achieved with the invention are based on a coordination of the different properties of the inner core and the outer shell or their envelopes in the sense of an optimization, so that at Maintaining the appearance and format of conventional cigarettes produces a taste-relevant smoke yield per puff, expressed by the index "condensate value per cigarette divided by the number of puffs", which is comparable to the smoke yield of substantial, conventional filter cigarettes, without using a filter.
- an additional filter can be provided if necessary to further reduce the condensate value.
- the extremely low glow rate that can be achieved in turn ensures an extremely high burning rate / glow rate ratio that cannot be achieved with conventional cigarettes.
- the tobacco used can be used more effectively for smoking, since less tobacco burns uselessly in the smoldering phases than with conventional cigarettes.
- This coaxial cigarette can be combined with suitable filters if required.
- suitable filters if required.
- the coaxial cigarette indicated generally by reference number 10, has an inner core 12 with a sheath 14 and an outer jacket 16 with a sheath 18.
- the left end on the mouth side as shown in FIG. 1 is indicated by the letter M, while the right end to be ignited is identified by the letter G ( G limmen).
- This coaxial cigarette 10 has the appearance and format of conventional single-strand cigarettes, the inner core 12 and outer jacket 16 each being homogeneous along their entire length and containing conventional tobacco blends and / or other combustible or heat-decomposable materials.
- the diameter of the inner core 12 is in the range from 45 to 80%, in particular 50 to 75%, of the outer diameter of the coaxial cigarette 10, which has the usual value, that is to say approximately 8 mm.
- the inner wrapping 14 of the inner core 12 consists of a cigarette paper, preferably made from tobacco plants, or a film of tobacco material.
- Q the volume flow in air that crosses the test sample
- in cm3 / min S the test area in cm2 of the test sample used for the test
- ⁇ P the pressure difference between the two surfaces of the test sample in kPa
- the packing density of the inner core 12 is in the range of 300 to 400 mg / cm3, while the packing density of the outer jacket 16 is in the range of 170 to 250 mg / cm3.
- the outer casing 18 of the outer casing 16 consists of two separate segments, the dividing line of which is indicated by the reference number 20 in FIG. 1.
- the front, ignition-side segment 18a of the outer casing 18, which extends from the dividing line 20 to the end G of the coaxial cigarette 10, has a maximum length of 50 mm and contains conventional glow salts, i.e. the glow salts usual in the cigarette industry with the usual concentrations.
- the air permeability of this front, ignition-side segment 18a of the outer casing 18 is in the range from 15 to 40, in particular from 20 to 25 ISO units.
- the rear, mouth-side segment 18b of the outer casing 18 contains no glow salts and can even be provided with glow-inhibiting substances if necessary.
- the air permeability of the mouth-side segment 18b of the outer casing 18 is less than 3 ISO units.
- the two segments 18a, 18b of the outer casing 18 can either be formed in one piece or consist of two separate parts.
- the outer, ignition-side segment 18a of the outer casing 18 envelops the outer jacket 16 over its entire length; it is only important that the rear segment 18b is then additionally provided, which is located on or under the casing 18a.
- the strand resistance per unit length of the entire front, ignition-side segment 18a must be in the range from 15 to 20 mm WS / cm.
- a glow rate of more than 3 mm / min is regarded as the lower limit for the glow rate of a cigarette that does not go out on its own. (V. Norman, Coresta, Vienna, 1984) Typical glow speeds conventional cigarettes are in the range of 4 to 7 mm / min.
- such a coordination of the coaxial cigarette 10 can be realized that the glow rate of the coaxial cigarette 10 is less than 2 mm / min.
- Figure 2 shows in the form of a histogram the carbon monoxide yield in milliliters (ml) per number of puffs for different cigarette samples.
- the three columns 1, 2 and 3 on the left as shown in FIG. 2 show the carbon monoxide content / number of puffs for three filterless coaxial cigarettes 10, the parameters of which have been defined above; it can be seen that the carbon monoxide content per train number is only slightly above 0.8 ml and is therefore extremely low.
- FIG. 2 also shows the carbon monoxide contents for three coaxial cigarettes 4, 5 and 6, which do not meet the parameters specified above; they are therefore coaxial cigarettes which also have an inner core with a wrapper, an outer core and the two outer wrappers, but are outside the claimed ranges in terms of the specifications. It can be seen that the carbon monoxide yield of these coaxial cigarettes is more than 1.4 ml per train, that is to say substantially higher than that of the coaxial cigarettes according to the invention.
- samples 7 to 14 relate to conventional, single-strand filterless cigarettes as are available on the market.
- the carbon monoxide yields are between 1.4 and 1.6 ml per train, i.e. they are much higher than in the coaxial cigarettes according to the invention.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89118398T ATE72732T1 (de) | 1988-10-24 | 1989-10-04 | Koaxialcigarette. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3836210 | 1988-10-24 | ||
| DE3836210A DE3836210C1 (ja) | 1988-10-24 | 1988-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0365882A1 EP0365882A1 (de) | 1990-05-02 |
| EP0365882B1 true EP0365882B1 (de) | 1992-02-26 |
Family
ID=6365813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89118398A Expired - Lifetime EP0365882B1 (de) | 1988-10-24 | 1989-10-04 | Koaxialcigarette |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4986287A (ja) |
| EP (1) | EP0365882B1 (ja) |
| AT (1) | ATE72732T1 (ja) |
| BR (1) | BR8903498A (ja) |
| CA (1) | CA1320892C (ja) |
| DE (2) | DE3836210C1 (ja) |
| DK (1) | DK170695B1 (ja) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5265626A (en) * | 1989-01-17 | 1993-11-30 | B.A.T. Cigarettenfabriken Gmbh | Coaxial filter cigarette |
| US5722432A (en) * | 1990-07-02 | 1998-03-03 | British-American Tobacco Company Limited | Smoking articles |
| GB9102658D0 (en) * | 1991-02-07 | 1991-03-27 | British American Tobacco Co | Improvements relating to smoking articles |
| US5105838A (en) * | 1990-10-23 | 1992-04-21 | R.J. Reynolds Tobacco Company | Cigarette |
| DE4107522C2 (de) * | 1991-03-08 | 1994-02-17 | Bat Cigarettenfab Gmbh | Koaxialcigarette |
| DE4127420C2 (de) * | 1991-08-19 | 1996-07-25 | Bat Cigarettenfab Gmbh | Koaxiale Filtercigarette |
| GB9122935D0 (en) * | 1991-10-30 | 1991-12-18 | Rothmans Benson & Hedges | Novel cigarette system |
| DE4321069C2 (de) * | 1993-06-24 | 1998-09-10 | Bat Cigarettenfab Gmbh | Koaxiale Filtercigarette |
| DE4444157C1 (de) * | 1994-12-12 | 1995-11-30 | Bat Cigarettenfab Gmbh | Segment-Filtercigarette |
| DE19703003A1 (de) * | 1997-01-28 | 1998-07-30 | Bat Cigarettenfab Gmbh | Cigarette mit reduzierter Fleckenbildung und vermindertem Nebenstromrauch |
| US6823872B2 (en) * | 1997-04-07 | 2004-11-30 | Schweitzer-Mauduit International, Inc. | Smoking article with reduced carbon monoxide delivery |
| GB9712815D0 (en) * | 1997-06-19 | 1997-08-20 | British American Tobacco Co | Smoking article and smoking material therefor |
| JP4002887B2 (ja) * | 2001-11-05 | 2007-11-07 | 日本たばこ産業株式会社 | 低延焼性シガレット |
| US20050066986A1 (en) * | 2003-09-30 | 2005-03-31 | Nestor Timothy Brian | Smokable rod for a cigarette |
| EP1670326B1 (en) * | 2003-09-30 | 2007-02-21 | R.J. Reynolds Tobacco Company | Smokable rod for a cigarette |
| US7503330B2 (en) * | 2003-09-30 | 2009-03-17 | R.J. Reynolds Tobacco Company | Smokable rod for a cigarette |
| US8997755B2 (en) * | 2009-11-11 | 2015-04-07 | R.J. Reynolds Tobacco Company | Filter element comprising smoke-altering material |
| US11957163B2 (en) | 2011-04-08 | 2024-04-16 | R.J. Reynolds Tobacco Company | Multi-segment filter element including smoke-altering flavorant |
| US10609955B2 (en) | 2011-04-08 | 2020-04-07 | R.J. Reynolds Tobacco Company | Filtered cigarette comprising a tubular element in filter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR988556A (fr) * | 1944-01-10 | 1951-08-29 | Perfectionnement aux éléments piézo-électriques | |
| FR998556A (fr) * | 1945-10-29 | 1952-01-21 | Papeteries De Mauduit Sa Des | Cigarette |
| FR1322254A (fr) * | 1962-02-14 | 1963-03-29 | Cigare à deux étages et cigarette à deux étages | |
| GB1086443A (en) * | 1966-05-03 | 1967-10-11 | James Alexander Everet Bell | Cigarette |
| GB1228747A (ja) * | 1967-09-07 | 1971-04-15 | ||
| US4219031A (en) * | 1979-03-05 | 1980-08-26 | Philip Morris Incorporated | Smoking product having core of fibrillar carbonized matter |
| GB2070409A (en) * | 1980-01-18 | 1981-09-09 | British American Tobacco Co | Filament, comprising smoke- modifying agent, in smoking article |
| GB2069310B (en) * | 1980-02-20 | 1983-09-14 | Molins Ltd | Manufacture of cigarettes |
| GB8502651D0 (en) * | 1985-02-01 | 1985-03-06 | British American Tobacco Co | Smoking articles |
| DE3743597C1 (de) * | 1987-12-22 | 1989-02-16 | Bat Cigarettenfab Gmbh | Koaxialcigarette |
-
1988
- 1988-10-24 DE DE3836210A patent/DE3836210C1/de not_active Expired
-
1989
- 1989-07-06 BR BR898903498A patent/BR8903498A/pt not_active IP Right Cessation
- 1989-09-27 CA CA000613691A patent/CA1320892C/en not_active Expired - Fee Related
- 1989-10-04 AT AT89118398T patent/ATE72732T1/de not_active IP Right Cessation
- 1989-10-04 DE DE8989118398T patent/DE58900870D1/de not_active Expired - Lifetime
- 1989-10-04 EP EP89118398A patent/EP0365882B1/de not_active Expired - Lifetime
- 1989-10-16 DK DK512289A patent/DK170695B1/da not_active IP Right Cessation
- 1989-10-18 US US07/423,310 patent/US4986287A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0365882A1 (de) | 1990-05-02 |
| DE58900870D1 (de) | 1992-04-02 |
| DK512289D0 (da) | 1989-10-16 |
| BR8903498A (pt) | 1991-02-05 |
| US4986287A (en) | 1991-01-22 |
| DE3836210C1 (ja) | 1989-10-12 |
| DK512289A (da) | 1990-04-25 |
| DK170695B1 (da) | 1995-12-11 |
| ATE72732T1 (de) | 1992-03-15 |
| CA1320892C (en) | 1993-08-03 |
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