EP0503461A1 - Cigarette coaxiale - Google Patents

Cigarette coaxiale Download PDF

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Publication number
EP0503461A1
EP0503461A1 EP92103690A EP92103690A EP0503461A1 EP 0503461 A1 EP0503461 A1 EP 0503461A1 EP 92103690 A EP92103690 A EP 92103690A EP 92103690 A EP92103690 A EP 92103690A EP 0503461 A1 EP0503461 A1 EP 0503461A1
Authority
EP
European Patent Office
Prior art keywords
coaxial
core
filter
cigarette
periphery
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
EP92103690A
Other languages
German (de)
English (en)
Other versions
EP0503461B1 (fr
Inventor
Werner Dr. Schneider
Erwin Dr. Kausch
Bernd-Henrik Dr. Müller
Adolf Dr. Schlüter
Erhard Prof. Dr. Rittershaus
Horst Borowski
Gert Dr. Rudolph
Wolfgang Dipl.-Ing. Trinkies
Wolfgang Dr. Wiethaup
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 EP0503461A1 publication Critical patent/EP0503461A1/fr
Application granted granted Critical
Publication of EP0503461B1 publication Critical patent/EP0503461B1/fr
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

Definitions

  • the invention relates to a coaxial cigarette of the type specified in the preamble of claim 1 or in the preamble of claim 2.
  • coaxial smokable articles have been described in various publications. These coaxial smokable items are usually coaxial cigars or cigarettes with an inner core surrounded by a jacket made of tobacco material. Such a coaxial cigarette was e.g. B. mentioned in FR-PS 998 556. Their inner core consisted of a tobacco of lower quality, their coat from a higher quality tobacco. This made it possible to achieve savings in terms of the tobacco material required.
  • Such coaxial cigarettes also emerge from other prior publications, for. B. from FR-PS 1 322 254, US-PS 3 614 956, US-PS 4 219 031, GB-OS 2 070 409 and GB-PS 1 086 443.
  • a relatively developed coaxial cigarette is in DE-OS 36 02 846 described. However, this does not have a filter that could trap the unwanted smoke components.
  • a coaxial cigarette is known from DE 40 20 496 A1, which is encased in a metallic foil envelope.
  • the space formed thereby and containing tobacco is surrounded by a hollow cylinder made of carbon fuel, which is surrounded by an air-permeable casing.
  • the known cigarette has a filter at one end.
  • the generic coaxial cigarette according to DE-PS 37 43 597 is additionally provided with a ventilated coaxial filter with a filter core, the inner diameter of which corresponds approximately to the diameter of the inner core of the coaxial cigarette and which has a filter jacket.
  • the filter core has an airtight covering.
  • the filter jacket has an air-permeable covering.
  • the sheathing of the inner core of the coaxial cigarette and the sheathing of the outer jacket of the same are provided with smoldering salts, the tensile resistance of the inner core being lower than the tensile resistance of the outer jacket of the coaxial cigarette.
  • This known coaxial cigarette has the advantage that undesirable combustion products are largely retained in the coaxial filter.
  • the object of the present invention to remedy the disadvantages of the known prior art.
  • the ratios of the tensile resistances per unit length to the respective packing density with an air-impermeable covering for the core or air-impermeable inner and outer covering and impermeable core for the strand periphery and a flow of 17.5 ml / s were measured.
  • coaxial cigarette according to the invention With the help of the coaxial cigarette according to the invention it is possible, despite filter ventilation, to achieve a significant increase in the quotient "condensate yield / nicotine yield per cigarette” (abbreviation: K / N) without the use of a coaxial filter type being necessary for this. This means that the consumer can enjoy the full amount of smoke, while filter ventilation reduces unwanted gaseous smoke components.
  • the coaxial cigarette according to the invention can be produced at the same time without great technical outlay and without using special materials, so that it is less expensive. Consumers therefore have an alternative to the conventional cigarette, not only in theory.
  • the positive effects can be intensified if the conventional filter used is ventilated, that is to say is provided with small openings or perforations.
  • the condensate yield is the nicotine-free dry condensate, measured according to DIN.
  • the nicotine yield is also determined according to the known standard regulations.
  • the K / N value of which corresponds approximately to the K / N value of a filterless cigarette the result is a mixture nicotine content in the strand core of more than 3% and a mixture nicotine content in the strand periphery of less than 1 ,1 %.
  • any commercially available or other filter known in the art can be used as the filter. It is particularly important to ensure that the tensile resistance of the filter used is greater than 15 mm water column (mm WS), measured closed.
  • a ventilation zone advantageously provided in the filter used should allow degrees of ventilation in the range of approximately 40 to approximately 80% for a given tensile resistance of the coaxial line.
  • a cellulose acetate filter with a tensile resistance between 40 and 80 mm WS and / or a degree of ventilation between 40 and 80%.
  • the effects achieved are stronger, the higher the degree of ventilation of the filter.
  • the coaxial cigarette according to the invention generally has a coaxial tobacco rod, the overall diameter of which is between approximately 7 and 9 mm.
  • the strand core has a diameter between 3 and 6 mm, with diameters between 4.5 and 5.5 mm being preferred.
  • the air permeability of the wrapping of the strand core that is the inner wrapping of the coaxial strand, which usually consists of cigarette paper or tobacco foil, is preferably less than 25 ISO units.
  • the outer wrapping of the tobacco rod which is generally made of cigarette paper or Tobacco film is preferably has an air permeability that is between 25 and 50 ISO units.
  • Case A With a ratio of tensile resistance to packing density for the core of the coaxial strand of 0.23 and for the jacket of 0.08, the K / N value becomes 7.3, with the mixture nicotine content in the core being 0.9% and in Coat is 4.5%.
  • Case B With a ratio of tensile resistance to packing density in the core of 0.17 and in the shell of 0.09, the K / N value is 13.3, the content of the mixture nicotine in the core being 4.5% and in the shell Is 0.9%.
  • the coaxial cigarette 10 has a coaxial tobacco rod to which a conventional, commercially available filter 15 is connected.
  • the filter 15 is provided with ventilation openings 28. These ventilation openings are advantageously located in a filter covering paper, which is not explicitly shown and which also serves to fasten the filter to the tobacco rod.
  • the filter wrapping paper covered by the filter paper is air-permeable or perforated like the paper.
  • At the end 22 of the filter 15 there is the pull opening at which the consumer pulls or sucks in order to enjoy the ingredients of the burning tobacco.
  • the coaxial tobacco rod 12 consists of a core 14 and a periphery or jacket 18.
  • the core 14 is provided with a covering 16, which generally consists of cigarette paper or tobacco foil.
  • the periphery 18 is also surrounded by an envelope 20, which also consists of cigarette paper or a tobacco foil.
  • the core 14 of the coaxial strand 12 and the periphery 18 of the coaxial strand 12 have different ratios of the tensile resistance per unit length to the packing density.
  • this ratio is between about 0.13 and about 0.27 mm WS cm2 / mg.
  • this ratio is between approximately 0.07 and approximately 0.11 mm WS cm 2 / mg.
  • the diameter of the coaxial cigarette 10 according to the invention is generally between 7 and 9 mm, values between 7.2 and 8 mm being preferred.
  • the strand core 14 has a diameter between 3 and 6 mm, preferably between 4.5 and 5.5 mm.
  • the air permeability of the sheath 16 of the strand core is less than 25 ISO units, while the air permeability of the sheath 20 of the jacket 18 is between approximately 25 and approximately 59 ISO units.
  • the filter 15 has a tensile resistance that is greater than about 15 mm WS.
  • the ventilation achieved via preferably a plurality of ventilation openings 28 is in the range from approximately 40 to 80%.
  • a cellulose acetate filter with a tensile resistance between 40 and 80 mm water column (measured closed) and a degree of ventilation between approximately 40 and approximately 80% is particularly recommended as a filter.
  • Case A With a ratio of tensile resistance to packing density for core 14 of coaxial strand 20 of 0.23 and for jacket 18 of 0.08, the K / N value was 7.3, with a mixture nicotine content in core 14 of 0.9% and with a mixture of nicotine in the jacket 18 of 4.5%.
  • Case B With a ratio of tensile resistance to packing density in the core 14 of 0.17 and in the jacket 18 of 0.09, a K / N value of 13.3 resulted with a mixture nicotine content in the core 14 of 4.5%. and in the jacket 18 of 0.9%.
  • a filterless coaxial line 12 with a K / N value of 7.2 (case A) or 8.6 (case B) was used, to which a ventilated filter 15 with a degree of ventilation of approximately 75% and a tensile resistance of 70 mm WS (measured closed) was used.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Paper (AREA)
EP92103690A 1991-03-08 1992-03-04 Cigarette coaxiale Expired - Lifetime EP0503461B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4107522 1991-03-08
DE4107522A DE4107522C2 (de) 1991-03-08 1991-03-08 Koaxialcigarette

Publications (2)

Publication Number Publication Date
EP0503461A1 true EP0503461A1 (fr) 1992-09-16
EP0503461B1 EP0503461B1 (fr) 1994-10-05

Family

ID=6426825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103690A Expired - Lifetime EP0503461B1 (fr) 1991-03-08 1992-03-04 Cigarette coaxiale

Country Status (6)

Country Link
US (1) US5388596A (fr)
EP (1) EP0503461B1 (fr)
AT (1) ATE112463T1 (fr)
CA (1) CA2062198A1 (fr)
DE (2) DE4107522C2 (fr)
HK (1) HK1005841A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998032345A1 (fr) * 1997-01-28 1998-07-30 British American Tobacco (Investments) Limited Articles a fumer
EP0880904A1 (fr) * 1997-05-30 1998-12-02 British-American Tobacco (Germany) GmbH Cigarette coaxial ultra-légère avec un filtre en plusieurs parties
WO2007069091A2 (fr) * 2005-12-12 2007-06-21 Philip Morris Products S.A. Article pour fumeur avec barre coaxiale de tabac
EP3245884A1 (fr) 2016-05-18 2017-11-22 G.D. S.p.A Unité et procédé de formation d'un flux coaxial dans une machine de fabrication de cigarettes coaxiales

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59506078D1 (de) * 1994-07-19 1999-07-08 Bat Cigarettenfab Gmbh Tabakpatrone
DE19718296B4 (de) * 1997-04-30 2006-06-29 British American Tobacco (Germany) Gmbh Ventilierte Filtercigarette mit einem koaxialen Filterelement
GB2368771A (en) * 2000-11-09 2002-05-15 Patricia Ann Parker Cigarette
GB201712380D0 (en) 2017-08-01 2017-09-13 British American Tobacco Investments Ltd A modular tobacco industry product
US11013267B2 (en) 2017-09-22 2021-05-25 Altria Client Services Llc Non-combustible tobacco vaping insert, and a cartridge containing the non-combustible tobacco vaping insert

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743597C1 (de) * 1987-12-22 1989-02-16 Bat Cigarettenfab Gmbh Koaxialcigarette
EP0365882A1 (fr) * 1988-10-24 1990-05-02 British-American Tobacco (Germany) GmbH Cigarette coaxiale
EP0378788A1 (fr) * 1989-01-17 1990-07-25 B.A.T. Cigarettenfabriken GmbH Cigarette à filtre coaxiale

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR998556A (fr) * 1945-10-29 1952-01-21 Papeteries De Mauduit Sa Des Cigarette
US3260265A (en) * 1957-11-01 1966-07-12 Thomas H Oster Tobacco manufacture
FR1322254A (fr) * 1962-02-14 1963-03-29 Cigare à deux étages et cigarette à deux étages
US3356094A (en) * 1965-09-22 1967-12-05 Battelle Memorial Institute Smoking devices
GB1086443A (en) * 1966-05-03 1967-10-11 James Alexander Everet Bell Cigarette
GB1228747A (fr) * 1967-09-07 1971-04-15
US3612066A (en) * 1970-02-05 1971-10-12 Reynolds Tobacco Co R Denicotinizing process
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
GB8502651D0 (en) * 1985-02-01 1985-03-06 British American Tobacco Co Smoking articles
US4920990A (en) * 1988-11-23 1990-05-01 R. J. Reynolds Tobacco Company Cigarette
US4955397A (en) * 1989-07-10 1990-09-11 Brown & Williamson Tobacco Corporation Cigarette
US5025812A (en) * 1989-08-10 1991-06-25 R. J. Reynolds Tobacco Company Tobacco processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743597C1 (de) * 1987-12-22 1989-02-16 Bat Cigarettenfab Gmbh Koaxialcigarette
EP0365882A1 (fr) * 1988-10-24 1990-05-02 British-American Tobacco (Germany) GmbH Cigarette coaxiale
EP0378788A1 (fr) * 1989-01-17 1990-07-25 B.A.T. Cigarettenfabriken GmbH Cigarette à filtre coaxiale

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998032345A1 (fr) * 1997-01-28 1998-07-30 British American Tobacco (Investments) Limited Articles a fumer
US6257243B1 (en) 1997-01-28 2001-07-10 Brown & Williamson Tobacco Corporation Smoking articles
EP0880904A1 (fr) * 1997-05-30 1998-12-02 British-American Tobacco (Germany) GmbH Cigarette coaxial ultra-légère avec un filtre en plusieurs parties
US6089238A (en) * 1997-05-30 2000-07-18 Brown & Williamson Tobacco Corporation Ultralight coaxial cigarette including a multipart filter
WO2007069091A2 (fr) * 2005-12-12 2007-06-21 Philip Morris Products S.A. Article pour fumeur avec barre coaxiale de tabac
WO2007069091A3 (fr) * 2005-12-12 2007-10-11 Philip Morris Prod Article pour fumeur avec barre coaxiale de tabac
US8573230B2 (en) 2005-12-12 2013-11-05 Philip Morris Usa Inc. Smoking article with coaxial tobacco rod
EP3245884A1 (fr) 2016-05-18 2017-11-22 G.D. S.p.A Unité et procédé de formation d'un flux coaxial dans une machine de fabrication de cigarettes coaxiales

Also Published As

Publication number Publication date
DE4107522A1 (de) 1992-09-10
DE59200577D1 (de) 1994-11-10
DE4107522C2 (de) 1994-02-17
US5388596A (en) 1995-02-14
CA2062198A1 (fr) 1992-09-09
ATE112463T1 (de) 1994-10-15
EP0503461B1 (fr) 1994-10-05
HK1005841A1 (en) 1999-01-29

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