EP0763985B1 - Rauchartikel - Google Patents

Rauchartikel Download PDF

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Publication number
EP0763985B1
EP0763985B1 EP95921051A EP95921051A EP0763985B1 EP 0763985 B1 EP0763985 B1 EP 0763985B1 EP 95921051 A EP95921051 A EP 95921051A EP 95921051 A EP95921051 A EP 95921051A EP 0763985 B1 EP0763985 B1 EP 0763985B1
Authority
EP
European Patent Office
Prior art keywords
smoking article
enclosure
article according
wall
smokable 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
EP95921051A
Other languages
English (en)
French (fr)
Other versions
EP0763985A1 (de
Inventor
Jerzy Kijowski
Eugene Crous
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
Rothmans International 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
Priority claimed from GB9411630A external-priority patent/GB9411630D0/en
Priority claimed from GBGB9502565.6A external-priority patent/GB9502565D0/en
Application filed by Rothmans International Services Ltd, Rothmans International Ltd filed Critical Rothmans International Services Ltd
Publication of EP0763985A1 publication Critical patent/EP0763985A1/de
Application granted granted Critical
Publication of EP0763985B1 publication Critical patent/EP0763985B1/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
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A24F13/16—Safety sleeves for cigars or cigarettes preventing damage by glowing ash
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A24F13/22—Supports for holding cigars or cigarettes while smoking

Definitions

  • This invention relates to smoking articles and in particular to an enclosed smoking article.
  • the object of the invention is to cut down on or prevent entirely sidestream smoke particles escaping into the ambient atmosphere thus eliminating one of the major causes of annoyance to non-smokers.
  • the structure also allows for the safe disposal of the article if it is self-extinguishing or is held to a low external temperature.
  • a cigarette-holder which forms a porous enclosure around the tobacco rod of the cigarette.
  • a cylindrical wall of the enclosure has a filter in it which may act as an adsorbent. Once the cigarette has burnt down somewhat, it is supported only at one end.
  • the rod of smokable material such as the tobacco rod of a cigarette, cigarillo or cigar (hereinafter “tobacco rod”) is permanently mounted within and spaced from a wall which is of a closable container which is at least partly porous and which has various functions within a protective outer shell formed by the wall.
  • tobacco rod the tobacco rod of a cigarette, cigarillo or cigar
  • the mouth end One end of the rod is accessible for smoking.
  • the chamber wall is a cylinder in which the smokable rod is mounted coaxially with its mouth end flush with or projecting from one end of the cylinder; at the other end of the cylinder there will be a closure.
  • This may be removable and/or may allow access for lighting the smokable article.
  • air may in appropriate cases pass directly from ambient to ventilation of a filter of the smoking article, which will preferably be filtered.
  • the filter assembly may be preassembled to the smokable rod and be mounted by mounting means to the wall or may be attached to the wall beyond one end of the smokable rod and of the container.
  • the mounting means may themselves be permeable, e.g. be filter material, or may be impermeable such as for example closed cell foam.
  • the wall of the sheath or container there may be a plurality of layers in the wall of the sheath or container and particularly when cylindrical in the cylindrical wall, these layers having various functions.
  • at least one such layer and preferably all such layers will desirably bear accessibly one or more of a catalyst, a heat insulator or an adsorbent such as activated carbon so as to act upon semi-volatiles and vapour phase components of the sidestream smoke. Any of these ingredients may have more than one of those capacities.
  • the outermost layer (the sole layer when only one is provided) will normally be of a stiff but porous paper.
  • One or more of the layers will preferably be a heat insulation or dispersant layer, e.g. a fabric treated with burn-retardants, or metal foil, wire mesh or metal or metallised fibres.
  • a heat insulation or dispersant layer e.g. a fabric treated with burn-retardants, or metal foil, wire mesh or metal or metallised fibres.
  • the smokable rod may be self-extinguishing, this being normally provided by a band of paper incorporating a burn-retardant chemical surrounding the smoking material at or adjacent the mouth end, or placed on the inner wall of the container.
  • the smokable rod preferably has a wrapper formulated (as is known per se) so as to cut down on the amount of sidestream smoke generated.
  • the end cap of the container may be formed; by a disc of paper secured across the end; by crimping the end of the container; by providing a comparatively rigid end cap which plugs into the end of a tubular such container; by a permanent end cap having a closable aperture in it; or the aperture may be closable upon being heated, for example being lined by an intumescent paint.
  • a removable end cap or of an access aperture is to allow for ignition of the smokable rod inside the container; alternatively, the container may be permanently sealed by a non-combustible material such as a fibrous material and the tobacco rod be ignited by for example electrically or by impact on a small detonator such as a non-safety match head.
  • a non-combustible material such as a fibrous material
  • ignition of the free end of the tobacco rod may be by a gas flame striking through the seal when the two are in contact.
  • the filter of the smokable rod can be ventilated and by regulation of the comparative permeability of the filter and of its mounting means in the container, together with ventilation of the smokable material portion of the smokable rod if desired, it can be determined what proportion of the smoke from the chamber is drawn by the smoker to be mixed with that drawn direct through the filter.
  • a filter cigarette 1 is mounted with one end (free end 13) and an intermediate portion 14 of its rod of smokable material in a container 6.
  • the cigarette is thinner and shorter than a conventional cigarette being for example 4 to 6 mm, usually 5.4 mm in diameter (as against the conventional 7.9 or 8 mm) and e.g. 60 to 90 mm, usually 72 mm, in length of which length e.g. 30 to 70 mm, usually 45 mm, is the tobacco rod 2 and e.g. 10 to 30 mm, usually 27 mm, the filter end portion 3.
  • the rod 2 is surrounded by the container 6 the wall 7 of which is a hollow cylinder and of which the axis 4 is coaxial with that of the rod.
  • a mounting block 8 on one end of the rod holds the wall 7 spaced from the intermediate portion 14 and other end 13 of the rod 2.
  • the diameter of the container will preferably be that of a conventional cigarette namely 7.9 or 8 mm and also its length will preferably be that of a conventional cigarette (70 to 120 mm).
  • the tobacco rod 2 is of conventional material for a "slim-line" cigarette and wrapped with conventional cigarette paper or paper of a type, known per se, adapted to cut down sidestream smoke.
  • the filter 3 is also conventional and may have any suitable filter material and may be a single or multiple type. It is enwrapped by a conventional plug wrap and united to the tobacco rod by an overwrap.
  • the container 6 is made up of a single layer of stiff but porous paper in the form of cylindrical tube 7.
  • the filter 3 of the rod 2 in such a way that its mouth end is accessible through the end 9 of the container formed by one face of the block 8 and can be drawn on by a smoker.
  • the tube 7 On or accessible from the inner surface of the tube 7 are particles 10 of adsorbent materials such as activated carbon or zeolites.
  • adsorbent materials such as activated carbon or zeolites.
  • an end cap 11 which as shown is also of stiff but porous paper. It is however only necessary that part of the container be porous so for example the tube 7 could be non-porous if the end cap 11 is porous and vice versa .
  • the rod 2 is mounted so that its intermediate portion and one end are free of the walls of the container and a chamber 12 is formed around it.
  • the end cap 11 is removed and a match or the like applied conventionally to the free end of the rod. Once it is burning the end cap is replaced.
  • the end cap may be permanently secured and internal means of ignition such as in particular a small charge of a detonator such as a non-safety phosphorus match mixture may be provided to ignite the free end of the rod.
  • the smoker may also draw some of the sidestream smoke from the chamber 12 and the relative proportions of the two smokes drawn can be adjusted by the relative porosity of block 8 and filter 3. If the block 8 is impermeable, some sidestream smoke may be drawn back past the coal and through the rod 2 and filter 3.
  • the spacing of the tube 7 from the rod 2 provides heat insulation so that not only does the assembly cut down on sidestream particulates but may be able to be rested on an ordinary surface while the cigarette is smouldering.
  • means are shown which will greatly increase the efficiency of the heat insulation effect.
  • Figure 1 also shows how the filter 3 may be ventilated as at 17 so as further to allow adjustment of the ratios of sidestream and mainstream smoke drawn by the user.
  • Figure 2 shows a modification wherein a container 15 has a tube 7 internally coated by adsorbent 10 as before and also as before the cigarette 1 is mounted by a block 8 to be accessible at one end of the tube.
  • closure cap is a moulded plastics plug 16 which the user fits into the end of the tube 7 once he has lit the cigarette.
  • the plug 16 need not of course be entirely of plastics material but may be for example a ring of plastics bearing a web of paper, which may be porous, across its central void.
  • Figure 3 shows the third embodiment, wherein the container 20 has a plurality of wall layers.
  • An outermost is a protective tube 7 of stiff paper the internal surface of which may or may not have an absorbent layer such as 10.
  • an inner tubular layer 21 Within this and preferably narrowly spaced from it is an inner tubular layer 21.
  • Adsorbent material 10 such as activated carbon or zeolite is accessible from the inner surface of the innermost layer 22 being on that layer or on layer 21 or tube 7.
  • Layer 21 is a heat insulating layer being for example filled with heat insulating material or being reflective e.g. due to metallisation.
  • Layer 22 is a heat distributing layer having for example metallic such as a perforated foil or a mesh or metallised fibres laying within it or upon it preferably generally in the axial direction. The metallic fibres when heated may have a catalytic effect upon the vapour phase components of the smoke.
  • the cigarette 1 is mounted in a block 23 analogous to block 8 and layers 22, 21 and 7 are spaced therefrom and from each other by comparatively thick adhesive layers 24, 25.
  • a strip of a heat-sensitive colour-changing indicator material may be applied along the outermost wall 7 of any embodiment.
  • the cigarette 1 of the embodiment of Figure 1 has in effect been shifted outwardly so that its mouth end 3' projects outwardly beyond the end wall 9 of the container.
  • ventilation holes 17 are free of that end 9 and so when the smoker draws on the cigarette ventilation air will be drawn from the ambient atmosphere. Sidestream smoke from the chamber 12 will be drawn through the smokable material rod.
  • a tobacco rod 2 is mounted in a container.
  • the tobacco rod is thinner than in a conventional cigarette being for example 4 to 6 mm, usually 5.4 mm in diameter (as against the conventional 7.9 or 8 mm) and 30 to 90 mm in length.
  • the filter 3'' is, in effect, between the end wall 9 of the container and the mouth end 3''' of the cigarette 1'. It has in this example a multiple filter structure with filter material bands 31,32 sandwiching a cavity 30 in which may be positioned adsorbents or flavour modifying materials, such as e.g. sepiolite or carbon.
  • the rod 2' is mounted within the container by a block 8' combining the functions of annular mounting block 8 and extinguishing paper 5.
  • the absolute and relative lengths both of the mouth end structure of the container i.e. that occupied by mounts 8,23,5' and of the chamber can be modified.
  • Figure 6 shows one such possible arrangement, where the annular mounting block of any of the previous embodiments extends for (for example) 40 mm from the end 9 of the assembly, the chamber extending for example a further 60 mm, giving a total length to the article of 100 mm.
  • the expedient of lengthening the block or other inert portion 8 is that the smoker has more space within which to handle the cigarette without running any risk of coming in contact with heated surfaces.
  • Figure 7 is a cross-section through, in principle, any of the embodiments previously described showing how any could have a multi-layer wall 33,34,35, such as layers 7,21,22 of Figure 3, spaced by the chamber 12 from the smoking rod 2. These layers may be separately assembled but may be preassembled as a laminate before the formation of the container or sheath.
  • a smoking article with a tobacco rod shorter and thinner than a conventional tobacco rod is used to reduce the quantity of heat generated upon smoking and also to reduce the quantities of sidestream smoke components generated.
  • the tobacco rod has a wrapping of a cigarette paper which is preferably a fast-burning cigarette paper selected to minimise the risk that the cigarette will self-extinguish when smouldering.
  • This rod is surrounded by a container which is a hollow cylinder (7.9 or 8 mm diameter) and of which the axis is coaxial with that of the cigarette.
  • the filter is of a conventional type with the addition of an adsorbent to reduce the vapour phase fraction of sidestream smoke components which in use may be drawn through the cigarette wrapper or through the "coal".
  • the join between filter and tobacco rod is made by overwrapping with a non-combustible paper to render the cigarette self-extinguishing.
  • the material of the container wall has a low porosity and contains activated charcoal to reduce the vapour phase components of the sidestream smoke and the material also includes a mineral filler to provide thermal mass to reduce the temperature of the cylinder wall to less than 150°C, preferably less than 120°C and most preferably to less than 80°C.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)

Claims (16)

  1. Rauchartikel, der ein rauchbares Stäbchen mit zwei Endabschnitten (3, 3', 3''', 13) und einem Mittelabschnitt (14) sowie Befestigungsmitteln (8,8') an einem der Endabschnitte (3,3',3''') davon, an denen eine Wand (7) einer Hülle (6) so montiert ist, daß sie den Mittelabschnitt (14) und den anderen der Endabschnitte (13) des rauchbaren Stäbchens umgibt und davon beabstandet ist, wobei zumindest ein Teil der Wand der Hülle porös ist, um das Verbrennen von Material des rauchbaren Stäbchens innerhalb der von der Hülle gebildeten Kammer zuzulassen, wobei das Ende des einen Endabschnitts (3, 3', 3''') des rauchbaren Stäbchens zuganglich ist, dadurch gekennzeichnet, daß die Wand (7) durch die Befestigungsmittel (8,8') permanent montiert ist und sie das rauchbare Stäbchen von der Wand beabstandet halten, und daß die Wand (7) innerhalb eines Schutzröhrchens (7) zumindest eine aus Wärmeableitungs-, Wärmeisolator- und Adsorptionsfunktionen bietet.
  2. Rauchartikel nach Anspruch 1, worin der eine Endabschnitt (3,3') des rauchbaren Stäbchens ein Filter ist.
  3. Rauchartikel nach Anspruch 2, worin der Filter (3) innerhalb der Hülle belüftet (17) ist.
  4. Rauchartikel nach Anspruch 2, worin der Filter (3') außerhalb der Hülle belüftet (17) ist, wobei der Filter über ein Ende (9) der Hülle hinausragt.
  5. Rauchartikel nach Anspruch 1, worin ein Filter (3'') jenseits des einen Endabschnitts (3''') des rauchbaren Stäbchens und außerhalb der Hülle (6) vorgesehen ist.
  6. Rauchartikel nach einem der vorangegangenen Ansprüche, worin das Ende der Hülle, das von jenem Ende entfernt ist, an dem das eine Ende des rauchbaren Stäbchens zugänglich ist, mit einem abnehmbaren Verschluß (11, 16) geschlossen ist.
  7. Rauchartikel nach einem der vorangegangenen Ansprüche, worin das Ende (26) der Hülle, das von jenem Ende entfernt ist, an dem das eine Ende des rauchbaren Stäbchens zugänglich ist, permanent geschlossen ist.
  8. Rauchartikel nach einem der vorangegangenen Ansprüche, worin das Ende (26) der Hülle, das von jenem Ende entfernt ist, an dem das eine Ende des rauchbaren Stäbchens zugänglich ist, so ausgebildet (27) ist, daß es sich beim Anstieg auf eine vorbestimmte Temperatur permanent schließt.
  9. Rauchartikel nach einem der vorangegangenen Ansprüche, worin das Schutzröhrchen (7) der Hülle innerhalb der Hülle eine adsorbierende Schicht (10) umfaßt.
  10. Rauchartikel nach einem der vorangegangenen Ansprüche, worin die Wand der Hülle eine Wärmeisolatorschicht (21) innerhalb des Schutzröhrchens (7) umfaßt.
  11. Rauchartikel nach Anspruch 10, worin der Wärmeisolator der Wärmeisolatorschicht (21) aus Metallfasern besteht.
  12. Rauchartikel nach einem der vorangegangenen Ansprüche, worin die Wand (7) der Hülle einen Katalysator umfaßt.
  13. Rauchartikel nach einem der vorangegangenen Ansprüche, worin das rauchbare Stäbchen angrenzend an sein eines Ende selbstlöschende Mittel (5, 8') aufweist.
  14. Rauchartikel nach einem der vorangegangenen Ansprüche, worin die Wand der Hülle einen sichtbaren wärmeempfindlichen Indikator aufweist, der sich die Hülle entlang erstreckt, um die Position der Brennzone eines brennenden rauchbaren Stäbchens anzuzeigen.
  15. Rauchartikel nach einem der Ansprüche 1 bis 8, worin die Wand der Hülle ein adsorbierendes Ingrediens (10) und zumindest eines aus wärmeisolierendem (21) und wärmeableitendem (22) Ingrediens umfaßt.
  16. Rauchartikel nach Anspruch 15, worin die Wand eine Vielzahl von Schichten (7, 21, 22) aufweist, wobei eine Außenschicht (7) die Schutzhülle darstellt und die Ingredienzien auf die inneren Schichten verteilt sind.
EP95921051A 1994-06-10 1995-06-06 Rauchartikel Expired - Lifetime EP0763985B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9411630A GB9411630D0 (en) 1994-06-10 1994-06-10 Smoking article
GB9411630 1994-06-10
GB9502565 1995-02-10
GBGB9502565.6A GB9502565D0 (en) 1995-02-10 1995-02-10 Smoking article
PCT/GB1995/001299 WO1995034226A1 (en) 1994-06-10 1995-06-06 Smoking article

Publications (2)

Publication Number Publication Date
EP0763985A1 EP0763985A1 (de) 1997-03-26
EP0763985B1 true EP0763985B1 (de) 1999-09-08

Family

ID=26305043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95921051A Expired - Lifetime EP0763985B1 (de) 1994-06-10 1995-06-06 Rauchartikel

Country Status (7)

Country Link
EP (1) EP0763985B1 (de)
AT (1) ATE184162T1 (de)
AU (1) AU685641B2 (de)
DE (1) DE69512054T2 (de)
DK (1) DK0763985T3 (de)
ES (1) ES2138741T3 (de)
WO (1) WO1995034226A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU724365B2 (en) * 1996-10-15 2000-09-21 Rothmans, Benson & Hedges Inc. Cigarette sidestream smoke and free-burn rate control device
US6345625B1 (en) * 1997-12-06 2002-02-12 Kar Eng Chew Filter for secondary smoke and smoking articles incorporating the same
TW536395B (en) 1998-04-16 2003-06-11 Rothmans Benson & Hedges Cigarette sidestream smoke treatment material
AU9156701A (en) 2000-09-18 2002-04-02 Rothmans Benson Low sidestream smoke cigarette with combustible paper
FR2911761A1 (fr) * 2007-01-31 2008-08-01 Emmanuel List Tube ferme et aere,pour contenir une cigarette allumee et permettre sa combustion,tout en retenant la cendre a l'interieur du dispositif.
US10314334B2 (en) 2015-12-10 2019-06-11 R.J. Reynolds Tobacco Company Smoking article
US11744296B2 (en) 2015-12-10 2023-09-05 R. J. Reynolds Tobacco Company Smoking article
US11723399B2 (en) 2018-07-13 2023-08-15 R.J. Reynolds Tobacco Company Smoking article with detachable cartridge
CN110786557B (zh) * 2018-08-01 2022-05-17 湖南中烟工业有限责任公司 一种加热不燃烧卷烟及其抽吸装置、生产烟气的方法
US12022859B2 (en) 2019-07-18 2024-07-02 R.J. Reynolds Tobacco Company Thermal energy absorbers for tobacco heating products
US11395510B2 (en) 2019-07-19 2022-07-26 R.J. Reynolds Tobacco Company Aerosol delivery device with rotatable enclosure for cartridge
US11330838B2 (en) 2019-07-19 2022-05-17 R. J. Reynolds Tobacco Company Holder for aerosol delivery device with detachable cartridge
US11439185B2 (en) 2020-04-29 2022-09-13 R. J. Reynolds Tobacco Company Aerosol delivery device with sliding and transversely rotating locking mechanism
US11589616B2 (en) 2020-04-29 2023-02-28 R.J. Reynolds Tobacco Company Aerosol delivery device with sliding and axially rotating locking mechanism
US11825872B2 (en) 2021-04-02 2023-11-28 R.J. Reynolds Tobacco Company Aerosol delivery device with protective sleeve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1583284A (de) * 1968-07-23 1969-10-24
US3827444A (en) * 1972-06-30 1974-08-06 Y Khan Combined cigarette holder and ash receptacle
DE3029711A1 (de) * 1980-08-06 1982-03-11 Friedrich 3032 Fallingbostel Hector Vorrichtung, um das zigarettenrauchen, besonders im kraftfahrzeug, gefahrloser und umweltfreundlicher zu machen
FR2508776A1 (fr) * 1981-07-02 1983-01-07 Chetrit Robert Etui protecteur pour cigarette incandescente
US4637407A (en) * 1985-02-28 1987-01-20 Cangro Industries, Inc. Cigarette holder
US4790332A (en) * 1985-08-27 1988-12-13 Wallace Fred E Smoke eliminator for cigarette smokers
US4685477A (en) * 1985-12-18 1987-08-11 Valdez Loredana G Cigar or cigarette holder
US4993435A (en) * 1990-01-16 1991-02-19 Mccann Steven Smoking accessory

Also Published As

Publication number Publication date
ES2138741T3 (es) 2000-01-16
DK0763985T3 (da) 2000-03-27
DE69512054T2 (de) 2000-02-10
DE69512054D1 (de) 1999-10-14
WO1995034226A1 (en) 1995-12-21
AU685641B2 (en) 1998-01-22
AU2625495A (en) 1996-01-05
ATE184162T1 (de) 1999-09-15
EP0763985A1 (de) 1997-03-26

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