EP0321740B1 - Koaxialcigarette - Google Patents

Koaxialcigarette Download PDF

Info

Publication number
EP0321740B1
EP0321740B1 EP88119812A EP88119812A EP0321740B1 EP 0321740 B1 EP0321740 B1 EP 0321740B1 EP 88119812 A EP88119812 A EP 88119812A EP 88119812 A EP88119812 A EP 88119812A EP 0321740 B1 EP0321740 B1 EP 0321740B1
Authority
EP
European Patent Office
Prior art keywords
filter
coaxial
cigarette according
wrapper
coaxial cigarette
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
EP88119812A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0321740A1 (de
Inventor
Horst Borowski
Erwin Dipl.-Chem. Dr. Kausch
Erhard Dipl.-Ing. Dr. Rittershaus
Gert Dipl.-Chem. Dr. Rudolph
Werner Dipl.-Phys. Dr. Schneider
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.)
British American Tobacco Germany GmbH
Original Assignee
British American Tobacco Germany GmbH
BAT Cigarettenfabriken GmbH
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 British American Tobacco Germany GmbH, BAT Cigarettenfabriken GmbH filed Critical British American Tobacco Germany GmbH
Publication of EP0321740A1 publication Critical patent/EP0321740A1/de
Application granted granted Critical
Publication of EP0321740B1 publication Critical patent/EP0321740B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure

Definitions

  • the invention relates to a coaxial cigarette of the type specified in the preamble of claim 1.
  • coaxial smokable articles 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 998556, 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 from DE-A-3602846 and has an inner core made of a residue-free glowing Material, a covering for the inner core, an outer casing coaxially surrounding the inner core made of a tobacco and / or non-tobacco material, and a casing for the outer casing.
  • the particular advantage of this coaxial cigarette is that it can be manufactured using customary manufacturing techniques on specially modified rod machines.
  • US-A-3356094 discloses a coaxial cigarette with an inner hollow tube and an aerosol chamber with a narrow outlet; however, the production of this coaxial cigarette is very complex and therefore expensive; In addition, the different components are separated from each other, so that there is an unusual smoking pattern.
  • a coaxial cigarette is known from DE-A-2620335, which has a strand part with an inner core and an outer jacket.
  • a filter part is attached to the strand part, in which partitions are provided.
  • the interior, which is enclosed by the partitions within the filter part, is arranged in connection with the inner core, but is additionally connected to the outer jacket.
  • the outer jacket is filled with a tobacco material, while the inner core of the known coaxial cigarette is hollow.
  • the invention has for its object to provide a coaxial cigarette of the type specified, in which the unwanted smoke components can be almost completely intercepted.
  • the advantages achieved by the invention are based on the fact that combustion products of the strand part in the ring-shaped outer jacket and separated from the inner core during a train in the train phase are guided axially through the coaxial cigarette and absorbed by a special coaxial filter;
  • This coaxial filter treats the peripheral smoke flowing through its filter jacket and the central smoke flowing through its filter core in very different ways, which are matched to the two types of smoke, so that there is an optimal filter effect.
  • the gas phase of the smoke is reduced by diffusion and ventilation, while the particle phase is reduced by ventilation and is simultaneously absorbed by a high-performance filter segment.
  • Both the tobacco rod and the coaxial filter of this coaxial cigarette can be produced using existing technologies which are known in principle from the prior art, so that only corresponding modifications to the current machines are required.
  • the smoke produced and absorbed by the smoker is acceptable in terms of taste and contains only a little condensate, which is also largely free of the usual combustion products; the smoking process itself is not changed, so that the "smoking experience" for the smoker can also be maintained.
  • the coaxial cigarette which is generally indicated by reference number 10, has a strand part 12, to which a coaxial filter 15 is attached with the usual manufacturing techniques.
  • the strand part 12 contains an inner core 14 with a sheath 16 and an outer core 18 with a sheath 20.
  • the coaxial filter 15 consists of a filter core 22 with a casing 24 and a filter jacket 26 with a casing 28.
  • the coaxial filter 15 is ventilated, as will be explained later; the ventilation means is indicated as a line of punctiform ventilation openings 30 which extend over the circumference of the coaxial filter 15.
  • the inner core 14 of the strand part 12 has a diameter of 3 to 5 mm, while the diameter of the outer jacket 18 of the strand part 12 is a maximum of 8 mm, so that this strand part 12 corresponds approximately to the usual diameter of "normal" cigarettes.
  • the inner core 14 consists of a porous carrier substance with a high absorption capacity for the combination of flavoring and / or flavoring substances, also known as "casing", which are generally present in solvents and contain sugar, humectants and similar substances; it is also spoken of “sauce”; this "casing" is added to the tobacco material before cutting.
  • casing a porous carrier substance with a high absorption capacity for the combination of flavoring and / or flavoring substances
  • the absorption capacity for "casing" should be greater than 3% by weight.
  • a preferred carrier is tobacco material, e.g. Cut tobacco, tobacco foil or extruded tobacco; however, thermally decomposable non-tobacco materials can also be used. It is important that the carrier substance of the inner core 14 burns up largely without residue.
  • the inner core 14 contains tobacco material, it must have a high aroma content and / or a high condensate potential and a low carbon monoxide potential.
  • Cigarette paper is particularly suitable as wrapping 16, and expediently a cigarette paper that consists at least partially of tobacco raw material.
  • the sheath 16 of the inner core 14 can also be produced from tobacco films or other natural material films.
  • the outer jacket 18 of the strand part 12 consists of tobacco materials and / or non-tobacco materials with a low condensate potential and with a high filling capacity with a packing density of at most 220 mg / ml.
  • the inner casing 16 of the inner core 14 and the outer casing 20 of the outer casing 18 of the strand part 12 are treated with generally different glow salts and glow salt concentrations as additives, either uniformly over their entire area or as a glow salt pattern; a specific glow salt or a mixture of several different glow salts can be used in each case.
  • the amount of glow salt for the inner casing 16 or outer casing 20 must be adjusted so that a total glow rate results for the inner core 14 and outer casing 18, which ensures a sufficient uniform mass conversion for the inner core 14 and outer casing 18 of the strand part 12. In particular, it must be ruled out that cavities or similar defects arise due to locally high glow speeds.
  • the tensile resistance of the inner core 14 of the strand part 12 must be lower than the tensile resistance of the outer jacket 18 of the tobacco rod 12.
  • the outer diameter of the coaxial filter 15 corresponds to the outer diameter of the strand part 12, that is, is a maximum of 8 mm.
  • the diameter of the filter core 22 corresponds approximately to the diameter of the inner core 14 of the strand part, but should, according to a preferred embodiment, be approximately 0.1 to 1 mm smaller than this, as indicated in the figure, in order in this way to rule out smoke from the Outer jacket 18 can get into the filter core 22.
  • the coaxial filter 15 is ventilated and has a degree of ventilation of 50 to 80%.
  • a highly porous wrapping and highly porous covering paper with an additional, laser-perforated ventilation zone 30 is used as the outer covering 28, at least through the covering paper. If, as shown, the ventilation zone is formed by a line of punctiform ventilation openings 30 running in the circumferential direction, the line of the openings 30 should have a distance of at least 10 mm from the mouth end of the coaxial filter 15.
  • the length of the coaxial filter 15 should be in the range of 21 to 30 mm. Accordingly, the ventilation zone 30 would be at least 9 mm away from the end face of the coaxial filter 15 facing the strand part 12, the aim being to keep the smallest possible distance from the end face on the mouth side.
  • the cover 28 of the filter jacket 26 is porous and consists of a cover and a covering paper.
  • the topping paper should have a porosity of more than 5000 CU and the wrapping paper should have a porosity of more than 10000 CU.
  • Suitable materials for the two filter zones are the customary filter materials as are currently used in the cigarette industry.
  • the filter core 22 can consist of porous carrier materials with a large specific surface area, in particular foamed, extruded, sintered, pressed or molded materials such as, for example, coal, tobacco or non-tobacco materials.
  • the filter jacket 26 again consists of the usual filter materials.
  • the carrier materials for the filter core 22 should contain additives, namely once the usual additives, such as triacetin, flavor or aroma substances and / or largely neutral taste substances with a high transfer coefficient into the core smoke.
  • the filter core 22 is surrounded by an air-impermeable covering 24, which can consist, for example, of non-porous filter paper.
  • the ratio of the specific tensile resistances of the filter jacket 26 to that of the filter core 22 is “measured closed”, that is to say without taking ventilation into account, at least 1.4.
  • the peripheral filter jacket 26, based on the peripheral smoke flow, together with the ventilation via the ventilation openings 30, has a degree of reduction of at least 90%; and the filter core 22 has a filter efficiency of at most 40%, based on the core smoke.
  • combustion products thus arise both in the inner core 14 and in the outer jacket 18 of the strand part 12.
  • the combustion products essentially only come from the outer jacket 18 of the strand part 12, so that almost all combustion products guided on separate tracks, passed through the coaxial filter 15 and can thereby be influenced in a targeted manner so that there is little condensate without impairing the taste, which is largely free of the usual combustion products.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP88119812A 1987-12-22 1988-11-28 Koaxialcigarette Expired - Lifetime EP0321740B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3743597 1987-12-22
DE3743597A DE3743597C1 (de) 1987-12-22 1987-12-22 Koaxialcigarette
SG69594A SG69594G (en) 1987-12-22 1994-05-28 Coaxial cigarette

Publications (2)

Publication Number Publication Date
EP0321740A1 EP0321740A1 (de) 1989-06-28
EP0321740B1 true EP0321740B1 (de) 1991-08-21

Family

ID=25863097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119812A Expired - Lifetime EP0321740B1 (de) 1987-12-22 1988-11-28 Koaxialcigarette

Country Status (7)

Country Link
US (1) US4874004A (xx)
EP (1) EP0321740B1 (xx)
JP (1) JPH0785709B2 (xx)
CA (1) CA1299958C (xx)
DE (2) DE3743597C1 (xx)
HK (1) HK101594A (xx)
SG (1) SG69594G (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102439408A (zh) * 2009-05-25 2012-05-02 罗伯特·博世有限公司 带有压力传感器的控制装置

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836210C1 (xx) * 1988-10-24 1989-10-12 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De
US5265626A (en) * 1989-01-17 1993-11-30 B.A.T. Cigarettenfabriken Gmbh Coaxial filter cigarette
DE3901226C1 (xx) * 1989-01-17 1990-07-26 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De
DE3904948C1 (en) * 1989-02-17 1990-05-10 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De Coaxial filter for a smokeable article
GB8908535D0 (en) * 1989-04-14 1989-06-01 Tabac Fab Reunies Sa Cigarette and filter thereof
DK88890A (da) * 1989-04-14 1990-10-15 Tabac Fab Reunies Sa Cigaret og filter dertil
US4955397A (en) * 1989-07-10 1990-09-11 Brown & Williamson Tobacco Corporation Cigarette
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
AU635095B2 (en) * 1990-08-24 1993-03-11 Philip Morris Products Inc. Concentric smoking filter having discrete tow and web filter media
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
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
GB9122447D0 (en) * 1991-10-23 1991-12-04 Rothmans Int Tobacco Lightweight cigarette filter and cigarettes incorporating such filters
DE4205658A1 (de) * 1992-02-25 1993-08-26 Reemtsma H F & Ph Ventilierte filtercigarette
DE4321069C2 (de) * 1993-06-24 1998-09-10 Bat Cigarettenfab Gmbh Koaxiale Filtercigarette
US5458107A (en) * 1994-03-04 1995-10-17 Balogh; Robert J. Flavor cigarettes
DE59506078D1 (de) * 1994-07-19 1999-07-08 Bat Cigarettenfab Gmbh Tabakpatrone
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
DE19718296B4 (de) * 1997-04-30 2006-06-29 British American Tobacco (Germany) Gmbh Ventilierte Filtercigarette mit einem koaxialen Filterelement
DE19722812C2 (de) * 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultraleicht-Koaxialcigarette mit mehrteiligem Filter
GB9712815D0 (en) * 1997-06-19 1997-08-20 British American Tobacco Co Smoking article and smoking material therefor
DE19757712C1 (de) * 1997-12-23 1999-06-24 Bat Cigarettenfab Gmbh Koaxialcigarette mit Querstromsperre und Verfahren zur Herstellung einer Koaxialcigarette
DE19854364A1 (de) 1998-11-25 2000-05-31 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Herstellen koaxialer Zigaretten
US20050066986A1 (en) * 2003-09-30 2005-03-31 Nestor Timothy Brian Smokable rod for a cigarette
US7503330B2 (en) * 2003-09-30 2009-03-17 R.J. Reynolds Tobacco Company Smokable rod for a cigarette
WO2005032285A1 (en) * 2003-09-30 2005-04-14 R. J. Reynolds Tobacco Company Smokable rod for a cigarette
GB0713905D0 (en) 2007-07-17 2007-08-29 British American Tobacco Co Cellulose acetate thread in filter
GB0809857D0 (en) * 2008-05-30 2008-07-09 British American Tobacco Co Smoking article filter ventilation
US8905037B2 (en) * 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
US8997755B2 (en) * 2009-11-11 2015-04-07 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
GB201013072D0 (en) * 2010-08-04 2010-09-15 British American Tobacco Co Smoking article
US10609955B2 (en) 2011-04-08 2020-04-07 R.J. Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter
US11957163B2 (en) 2011-04-08 2024-04-16 R.J. Reynolds Tobacco Company Multi-segment filter element including smoke-altering flavorant
CN105105330A (zh) * 2015-07-23 2015-12-02 云南养瑞科技集团有限公司 一种丝状或片状滤材同轴芯滤棒
CN107048473A (zh) * 2017-06-06 2017-08-18 陈绍明 高燃效卷烟
KR102217756B1 (ko) * 2019-08-20 2021-02-18 주식회사 케이티앤지 다중 매질부를 포함하는 흡연물품

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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
GB1228747A (xx) * 1967-09-07 1971-04-15
DE2620335A1 (de) * 1976-05-07 1977-11-24 Brasec Gmbh Chemisch Physikali Schadstoffarme tabakwaren
US4219031A (en) * 1979-03-05 1980-08-26 Philip Morris Incorporated Smoking product having core of fibrillar carbonized matter
US4291711A (en) * 1979-03-27 1981-09-29 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
GB2069310B (en) * 1980-02-20 1983-09-14 Molins Ltd Manufacture of cigarettes
DE3105548A1 (de) * 1980-02-20 1982-02-04 Molins Ltd., London Herstellung von zigaretten
GB2119221B (en) * 1982-04-05 1986-05-29 Filtrona Ltd Cigarette filter
GB8502651D0 (en) * 1985-02-01 1985-03-06 British American Tobacco Co Smoking articles
CA1246415A (en) * 1985-05-15 1988-12-13 Warren A. Brackmann Composite cigarettes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102439408A (zh) * 2009-05-25 2012-05-02 罗伯特·博世有限公司 带有压力传感器的控制装置
CN102439408B (zh) * 2009-05-25 2015-05-13 罗伯特·博世有限公司 带有压力传感器的控制装置

Also Published As

Publication number Publication date
HK101594A (en) 1994-09-30
US4874004A (en) 1989-10-17
JPH0785709B2 (ja) 1995-09-20
CA1299958C (en) 1992-05-05
JPH01265877A (ja) 1989-10-23
SG69594G (en) 1995-03-17
EP0321740A1 (de) 1989-06-28
DE3743597C1 (de) 1989-02-16
DE3864396D1 (en) 1991-09-26

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