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EP0471581B1 - Rauchartikel - Google Patents

Rauchartikel Download PDF

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Publication number
EP0471581B1
EP0471581B1 EP91307543A EP91307543A EP0471581B1 EP 0471581 B1 EP0471581 B1 EP 0471581B1 EP 91307543 A EP91307543 A EP 91307543A EP 91307543 A EP91307543 A EP 91307543A EP 0471581 B1 EP0471581 B1 EP 0471581B1
Authority
EP
European Patent Office
Prior art keywords
smoking article
article according
tobacco
granular
rod
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
EP91307543A
Other languages
English (en)
French (fr)
Other versions
EP0471581A1 (de
Inventor
Martin Graham Duke
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.)
Rothmans International Services Ltd
Original Assignee
Rothmans International Services Ltd
Rothmans International Ltd
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 Rothmans International Services Ltd, Rothmans International Ltd filed Critical Rothmans International Services Ltd
Publication of EP0471581A1 publication Critical patent/EP0471581A1/de
Application granted granted Critical
Publication of EP0471581B1 publication Critical patent/EP0471581B1/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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means

Definitions

  • This invention relates to a smoking article which produces smoke and/or an aerosol that resembles tobacco smoke.
  • US Patent Specification 4 340 072 shows a fuel rod that is moulded or extruded from reconstituted tobacco and/or tobacco substitute.
  • a longitudinally extending passage is provided in the impervious fuel rod so that a flow of hot gas is produced during combustion and passes towards an aerosol precursor chamber during smoking.
  • air entering the passage passes the burning coal and is heated and mixed with the combustion gases from the burning rod and this stream of hot gases passes down the passage and between the granules of the precursor material to exit through a filter tip into the mouth of the smoker.
  • the smoker inhales an aerosol of flavourant from the precursor material which also contains particulate material from the burning fuel rod.
  • US Patent Specification 4 917 121 shows a smoking article which contains granular material within a tube located in a tobacco column. The end of the tobacco column displaced away from the ignited end is closed so that all the gases pass down the tube. Thus the gases and smoke from the burning tobacco and from the granular material mingle and the particulate material in the tobacco smoke is carried on towards the mouthpiece end.
  • the present invention provides a smoking article comprising a tobacco rod of smokable material in an outer wrapper and a downstream filter unit which includes a granular element containing adsorbed compounds that will generate an aerosol when hot gases are passed through it, a passage defined by an impervious wall and which extends longitudinally from the end of said rod to said granular element to supply hot gas thereto.
  • Filter means are provided for filtering smoke travelling along said tobacco rod through the processed and cut tobacco thereof before or simultaneously with said smoke contacting the aerosol generated from the granular element by said hot gases.
  • the passage may have a diameter in the range of 0.5 to 5.0 mm but preferably is in the range of 1.0 to 5.00 mm. Temperatures measured at the end of the passage can reach up to 550°C, thus providing sufficient heat to release components from the granular material.
  • the filter means act to remove particulate material prior to or simultaneously with the smoke/gases being used to release the components and flavours which condense and form the aerosol.
  • the longitudinal passage can have a wall made from combustible material such as paper or reconstituted tobacco sheet and is substantially impervious.
  • the granular element can be backed by a conventional filter element.
  • Granular materials such as alumina, magnesium silicate, zeolites, ceramics, activated carbon or other porous materials impregnated with selected components or compounds (e.g. nicotine, glycerol, tobacco flavours, tobacco extracts) are contained in a cavity adjacent to the end of a tobacco rod containing the longitudinal passage, and can be loose packed or in sintered form. Thus adsorbed components are desorbed when the hot gas mixture from the passage passes through the granular element of the filter unit.
  • selected components or compounds e.g. nicotine, glycerol, tobacco flavours, tobacco extracts
  • the desorbed components form an aerosol which preferably then pass through a low efficiency filter which can be made from cellulose acetate, polypropylene, paper or other similar filter material.
  • the smoking article shown in Figure 1 comprises a cylindrical tobacco rod 1 made from conventionally processed and cut tobacco at a filling density of 150 to 300 mg cm ⁇ 3 wrapped in a cigarette paper 2 of porosity in the range of 4 to 150 CORESTA units but preferably 20 to 80 CORESTA units.
  • a longitudinal passage 3 extends the length of the tobacco rod with the wall of the passage 4 being substantially impervious to air and made of cigarette paper or reconstituted tobacco sheet.
  • a filter element 9 located between the tobacco and a granular bed 6 is made of high efficiency material such as ultra-fine fibres of polypropylene or other polyolefin material and removes most of the smoke components that travel along the tobacco rod 1 preferentially.
  • Hot air/gas mixtures pass through a granular element 6 and desorb the components from granules 7. These components form an aerosol and pass through an end filter 8 into the mouth of the smoker.
  • This filter should preferably be of very low retention so that maximum transfer is achieved from the granules to the smoker's mouth and can be made as a conventional filter from cellulose acetate, polypropylene, paper or other similar filter material.
  • the granular material can be magnesium silicate, for example Sepiolite in granular form of for example 15 - 30 mesh, but in order to ease manufacture the granules could be sintered into a rod which is then cut to appropriate size, and between 50 - 200 mg. of granules can be contained in each filter unit.
  • the overall length of the smoking article is in the range of 50 to 120 mm with an overall diameter of 5 mm to 8 mm, for example 7.8 mm.
  • the granular material can be treated with nicotine and glycerol in the range of 0.5 % to 20 % w/w and 0 % to 40 % w/w respectively which will give rise to the release of nicotine when in use.
  • a cavity 10 is located between the filter element 9 and the granular element 6. This allows the hot gas mixture to pass through a larger area of the granular element and helps to prevent the end 11 of the passage 3 becoming blocked with any ash that may come down the passage.
  • the passage 3 extending axially throughout the length of the tobacco rod 1 can be placed at the periphery thereof.
  • a third embodiment of the present invention is shown in Figure 5 and which includes a thermal insulation section 12 made of for, example, ceramic or other thermal insulating fibres. This prevents excessive heat loss to the surroundings at the same time keeping the outside of the smoking article cool enough to hold.
  • the thermal insulation material 12 is arranged to act as a filter to remove the smoke which travels along the tobacco rod.
  • the materials can be fine fibre and web materials.
  • components and flavours are adsorbed onto granular materials in the filter element.
  • air drawn through the central tube is heated by the burning coal and it is this hot air that "activates” the granular material by releasing components and flavours.
  • These vapours condense and form an aerosol which then passes through the filter section.
  • Use of the impervious tube ensures that there is no diffusion of the hot gas from the tube to the tobacco rod or of smoke into the tube.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (12)

  1. Rauchartikel umfassend eine Tabakstange (1) aus rauchbarem Material in einem äußeren Deckblatt (2) und eine stromabwärtige Filtereinheit (5), die ein körniges Element (6) enthält, das adsorbierte Verbindungen aufweist, die ein Aerosol erzeugen, wenn heiße Gase durch das Element hindurchströmen, und einen Durchgang (3), der durch eine undurchlässige Wand (4) definiert ist und der sich der Länge nach vom Ende der Stange zum körnigen Element (6) erstreckt, um heißes Gas zuzuleiten,
    dadurch gekennzeichnet, daß Filtermittel (9, 12) vorgesehen sind, um den Rauch, der sich entlang der Tabakstange (1) durch deren verarbeiteten und geschnittenen Tabak bewegt, zu filtern, bevor oder während der Rauch mit dem Aerosol in Kontakt kommt, das aus dem körnigen Element (6) durch die heißen Gase erzeugt wird.
  2. Rauchartikel nach Anspruch 1, worin das Filtermittel (9, 12) aus einem äußerst wirkungsvollen Material besteht.
  3. Rauchartikel nach Anspruch 2, worin das äußerst wirkungsvolle Material aus ultrafeinen Fasern aus Polypropylen- oder Polyolefinmaterial besteht.
  4. Rauchartikel nach einem der vorhergehenden Ansprüche, worin die Filtereinheit (5) ein Filterelement (8) stromabwärts vom körnigen Element (6) enthält.
  5. Rauchartikel nach Anspruch 4, worin das herkömmliche Filterelement (8) aus einem Material mit sehr geringer Retention besteht.
  6. Rauchartikel nach einem der vorhergehenden Ansprüche, worin das körnige Element (6) von Wärmeisolierung (12) umgeben ist.
  7. Rauchartikel nach Anspruch 6, worin die Wärmeisolierung (12) auch das Filtermittel ist.
  8. Rauchartikel nach einem der vorhergehenden Ansprüche, worin der Durchgang (3) mit der Stange (1) im wesentlichen koaxial ist.
  9. Rauchartikel nach einem der Ansprüche 1 bis 7, worin der Durchgang parallel, aber exzentrisch zur Achse der Stange (1) angeordnet ist.
  10. Rauchartikel nach einem der vorhergehenden Ansprüche, worin das körnige Material ein poröses Material ist, das mit ausgewählten Komponenten oder Verbindungen imprägniert ist.
  11. Rauchartikel nach Anspruch 10, worin das poröse Material aus Aluminiumoxid, Magnesiumsilikat, Zeoliten, Keramikmaterialien oder Aktivkohle besteht.
  12. Rauchartikel nach Anspruch 10 oder 11, worin die ausgewählten Komponenten oder Verbindungen Nikotin, Glyzerin, Tabakgeschmacksstoffe oder Tabakextrakte sind.
EP91307543A 1990-08-17 1991-08-15 Rauchartikel Expired - Lifetime EP0471581B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909018131A GB9018131D0 (en) 1990-08-17 1990-08-17 Smoking article
GB9018131 1990-08-17

Publications (2)

Publication Number Publication Date
EP0471581A1 EP0471581A1 (de) 1992-02-19
EP0471581B1 true EP0471581B1 (de) 1995-12-13

Family

ID=10680856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91307543A Expired - Lifetime EP0471581B1 (de) 1990-08-17 1991-08-15 Rauchartikel

Country Status (13)

Country Link
EP (1) EP0471581B1 (de)
JP (1) JP3012714B2 (de)
AU (1) AU653163B2 (de)
CA (1) CA2049364C (de)
DE (1) DE69115383T2 (de)
DK (1) DK0471581T3 (de)
ES (1) ES2082930T3 (de)
GB (1) GB9018131D0 (de)
GR (1) GR3018910T3 (de)
IE (1) IE74219B1 (de)
MY (1) MY112865A (de)
NZ (1) NZ239440A (de)
ZA (1) ZA916492B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180043701A (ko) * 2016-10-20 2018-04-30 황일영 니코틴 조성물과 그 제조 방법
EP3597058B1 (de) 2011-12-30 2023-10-25 Philip Morris Products S.A. Verfharen zum gebrauch eines rauchartikels mit frontstopfen und aerosolbildendem substrat

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5643245A (en) * 1991-10-01 1997-07-01 The Procter & Gamble Company Absorbent article having tucked flaps
AU3202895A (en) * 1994-07-28 1996-02-22 Lorillard Tobacco Company Hollow smokable article
AU2002300072B2 (en) * 1998-03-03 2005-05-19 Brown & Williamson Tobacco Corporation Aerosol Delivery Smoking Article
US6883523B2 (en) * 2003-02-14 2005-04-26 Philip Morris Usa Inc. Cigarette having porous heat transfer tube
US7987856B2 (en) 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
US8240315B2 (en) * 2005-12-29 2012-08-14 Philip Morris Usa Inc. Smoking article with improved delivery profile
KR20090008277A (ko) 2006-03-28 2009-01-21 필립모리스 프로덕츠 에스.에이. 흐름제한장치를 구비한 끽연물품
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8235056B2 (en) * 2006-12-29 2012-08-07 Philip Morris Usa Inc. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
TW200911138A (en) 2007-03-09 2009-03-16 Philip Morris Prod Smoking articles with restrictor and aerosol former
TW200911141A (en) 2007-03-09 2009-03-16 Philip Morris Prod Super recessed filter cigarette restrictor
CA2963423C (en) 2007-03-30 2020-07-28 Philip Morris Products S.A. Device and method for delivery of a medicament
GB0808154D0 (en) 2008-05-06 2008-06-11 British American Tobacco Co Aerosol dispensing device
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
AR080556A1 (es) 2009-10-09 2012-04-18 Philip Morris Prod Diseno de filtro para mejorar el perfil sensorial de articulos para fumar con boquilla de filtro de carbono
US8905037B2 (en) 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
TW201204272A (en) 2010-03-26 2012-02-01 Philip Morris Prod Smoking articles with significantly reduced gas vapor phase smoking constituents
PT2797450T (pt) 2011-12-30 2018-02-21 Philip Morris Products Sa Matriz para a confeção de material retrorreflexivo
AR089602A1 (es) 2011-12-30 2014-09-03 Philip Morris Products Sa Articulo generador de aerosoles para usar con un dispositivo generador de aerosoles
EP2625975A1 (de) 2012-02-13 2013-08-14 Philip Morris Products S.A. Aerosolerzeugender Artikel mit Aerosolkühlelement
WO2013178767A1 (en) 2012-05-31 2013-12-05 Philip Morris Products S.A. Flavoured rods for use in aerosol-generating articles
TW201402027A (zh) * 2012-06-08 2014-01-16 Japan Tobacco Inc 香味吸嘗具
AR091509A1 (es) 2012-06-21 2015-02-11 Philip Morris Products Sa Articulo para fumar para ser usado con un elemento de calentamiento interno
WO2014132182A2 (en) * 2013-02-27 2014-09-04 Philip Morris Products, S.A. Smoking article having botanical material as flavourant
EP3205219B1 (de) 2014-11-10 2020-12-23 Japan Tobacco Inc. Kartusche und nichtbrennender geschmacksinhalator
WO2016075748A1 (ja) * 2014-11-10 2016-05-19 日本たばこ産業株式会社 非燃焼型香味吸引器
GB201712380D0 (en) 2017-08-01 2017-09-13 British American Tobacco Investments Ltd A modular tobacco industry product
EP3795016A4 (de) * 2018-05-17 2022-03-09 Future Technology Co., Ltd. Aromapatrone
GB201817540D0 (en) * 2018-10-29 2018-12-12 Nerudia Ltd Smoking substitute consumable
CN109567268B (zh) * 2018-12-26 2021-10-01 广东中烟工业有限责任公司 一种多层式低温卷烟及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713451A (en) * 1970-09-11 1973-01-30 L Bromberg Article for smoking
US4340072A (en) * 1979-11-16 1982-07-20 Imperial Group Limited Smokeable device
EP0069056B1 (de) * 1981-06-10 1986-04-30 Baumgartner Papiers S.A. Verfahren zur Aromatisierung von Tabakrauch, Zigarettenendstück zur Durchführung des Verfahrens und Verwendung des Verfahrens
US4662384A (en) * 1982-06-29 1987-05-05 British-American Tobacco Company Limited Smoking articles
US5020548A (en) * 1985-08-26 1991-06-04 R. J. Reynolds Tobacco Company Smoking article with improved fuel element
US4793365A (en) * 1984-09-14 1988-12-27 R. J. Reynolds Tobacco Company Smoking article
US4903714A (en) * 1987-08-25 1990-02-27 R. J. Reynolds Tobacco Company Smoking article with improved mouthend piece
US4917121A (en) * 1988-12-09 1990-04-17 Brown & Williamson Tobacco Corporation Smoking article
US4898191A (en) * 1988-12-09 1990-02-06 Brown & Williamson Tobacco Corporation Smoking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597058B1 (de) 2011-12-30 2023-10-25 Philip Morris Products S.A. Verfharen zum gebrauch eines rauchartikels mit frontstopfen und aerosolbildendem substrat
KR20180043701A (ko) * 2016-10-20 2018-04-30 황일영 니코틴 조성물과 그 제조 방법

Also Published As

Publication number Publication date
ZA916492B (en) 1992-04-29
JP3012714B2 (ja) 2000-02-28
AU8253691A (en) 1992-02-20
EP0471581A1 (de) 1992-02-19
GR3018910T3 (en) 1996-05-31
IE912890A1 (en) 1992-02-26
DE69115383T2 (de) 1996-07-04
ES2082930T3 (es) 1996-04-01
JPH04229166A (ja) 1992-08-18
CA2049364C (en) 1997-07-08
AU653163B2 (en) 1994-09-22
CA2049364A1 (en) 1992-02-18
DK0471581T3 (da) 1996-03-18
DE69115383D1 (de) 1996-01-25
NZ239440A (en) 1994-11-25
MY112865A (en) 2001-10-31
IE74219B1 (en) 1997-07-16
GB9018131D0 (en) 1990-10-03

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