EP0880904B1 - Ultra-light coaxial cigarette with a multi-section filter - Google Patents

Ultra-light coaxial cigarette with a multi-section filter Download PDF

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Publication number
EP0880904B1
EP0880904B1 EP98109005A EP98109005A EP0880904B1 EP 0880904 B1 EP0880904 B1 EP 0880904B1 EP 98109005 A EP98109005 A EP 98109005A EP 98109005 A EP98109005 A EP 98109005A EP 0880904 B1 EP0880904 B1 EP 0880904B1
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EP
European Patent Office
Prior art keywords
filter
coaxial
segment
range
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
EP98109005A
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German (de)
French (fr)
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EP0880904A1 (en
Inventor
Werner Dr. Schneider
Adolf Dr. Schlüter
Erwin Dr. Kausch
Volker Dr. Heemann
Ursula Köpke
Wolfgang Metzner
Bernd-Henrik Dr. Müller
Heiner Ritter
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
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Application filed by British American Tobacco Germany GmbH, BAT Cigarettenfabriken GmbH filed Critical British American Tobacco Germany GmbH
Priority to SI9830050T priority Critical patent/SI0880904T1/en
Publication of EP0880904A1 publication Critical patent/EP0880904A1/en
Application granted granted Critical
Publication of EP0880904B1 publication Critical patent/EP0880904B1/en
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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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • 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
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
    • 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
    • A24D1/042—Cigars; Cigarettes with mouthpieces or filter-tips with mouthpieces
    • 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
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Definitions

  • the present invention relates to a coaxial cigarette with a coaxial tobacco rod, one strand core, one strand core covering, one strand jacket and one Has strand casing, and with a multi-part ventilated filter.
  • a Koxialcigarette in which both the filter and the tobacco rod are coaxial, is known from DE 41 27 420 C1 .
  • the formation of this cigarette allows a reduction in secondary smoke.
  • the filter consists of only a single coaxial longitudinal segment.
  • a ventilated coaxial cigarette is also known from DE 37 43 597 C1.
  • This Cigarette in turn has a ventilated coaxial filter that consists of only one Longitudinal segment exists. By using glow salts are undesirable Avoided smoke components.
  • EP 0 539 191 B1 describes low-weight cigarette filters and cigarettes known with these filters, the filters through different longitudinal departments be designed in several parts. The tobacco strands used are not coaxial educated. EP 0 474 940 A1 also shows such filter configurations for non-coaxial ones Cigarettes.
  • the filter of the coaxial cigarette has a filter casing as well has at least two longitudinal segments, at least one of which is a Coaxial filter segment with a core element, a core element cladding and one Sheath element is, and that the ratio of the tensile resistance of the strand core to The tensile resistance of the strand jacket is greater than 1 and preferably in the range of 2 to 4.
  • the tensile resistance of the coaxial filter segment is preferably in the range from 45 to 120 mmWS.
  • An unventilated coaxial filter segment is preferably used.
  • the filter has three longitudinal segments, namely a lower segment on the mouth side Retention, a middle segment with high retention and a tobacco side Coaxial filter segment.
  • the middle filter segment of the coaxial cigarette according to the invention is according to a preferred embodiment of a filter material such as paper, crest or preferably cellulose acetate, has a tensile resistance of 30 to 100 mm water column, preferably 50 to 60 mmWS, and its single titer for the cellulose acetate is in the range of 1.5 to 5 dpf, preferably in the range of 1.5 to 2.1 dpf.
  • a filter material such as paper, crest or preferably cellulose acetate
  • the mouth-side segment of the filter of a filter according to the invention is preferably present Coaxial cigarette made from a filter material such as paper, crest or preferably cellulose acetate. It can also be a hollow mouthpiece.
  • the Draw resistance of the mouth-side segment is in the range from 0 (hollow mouthpiece) to 100 mmWS and preferably in the range of 10 to 15 mmWS.
  • the ventilation openings can be created by laser perforation in online operation become.
  • the use of pre-perforated filter coverings is also conceivable.
  • the ventilation openings are advantageously in the area of the middle segment arranged; if the length of the mouth-side segment is greater than 11 mm, the ventilation openings can in particular also in the area of the mouth Segment be arranged.
  • the degree of filter ventilation is preferably in the range from 50 to 85%.
  • the diameter of the filter can range from 7 to 9 mm and preferably 7.8 mm, the core element of the coaxial filter segment a diameter of 4 to 6 mm and preferably 5 to 6 mm having.
  • the tobacco rod of a coaxial cigarette according to the invention has a preferred Design a diameter that is in the range of 7 to 9 mm, and preferably at 7.8 mm.
  • the strand core of the coaxial cigarette can be one Have diameters of 4 to 6 mm and preferably 5 to 5.6 mm.
  • the structure of the coaxial cigarette shown in the figure can be incorporated into a filter 10 and a tobacco rod 20 are divided.
  • the taste-relevant tobacco of this cigarette is preferably wrapped in a rope 21 arranged.
  • a tobacco foil is preferably used as the core wrapping used.
  • the tensile resistance of the strand core is greater than that of the Strand jacket, which is indicated by a suitable material selection and setting Parameters such as the packing density is achieved. Suitable values for the tensile resistance is about 150 mmWS for the strand core 22 and about 75 mmWS for the strand casing 21, while the tensile resistance of the entire tobacco rod 20 at about 50 mmWS.
  • the tobacco rod has a usual outside diameter of about 7.8 mm
  • Strand core 22 is in the diameter range of 5 to 6 mm.
  • the filter 10 connects to the tobacco rod 20. It consists of the one shown Version made of three longitudinal segments 11, 12 and 13.
  • the mouth-side longitudinal segment 11 of filter 10 is a low retention segment made of a filter material such as Paper, crest or preferably cellulose acetate. It has a tensile resistance of about 10 to 15 mmWS.
  • the middle longitudinal segment 12 of the filter 10 is again a paper filter plug, Crest or preferably cellulose acetate provided.
  • the segment 12 has a high specific retention performance, so that even for the short middle Longitudinal segment 12 gives and has a retention rate of about 30% (unventilated) a tensile resistance of about 50 mmWS.
  • this is the middle one Segment 12 the ventilated segment; with 18 ventilation openings are indicated.
  • the ventilation openings 18 can be perforated online with laser beams, i.e. be made during the manufacturing process. But there is also Possibility to use pre-perforated covering paper for the filter.
  • the ventilation openings ensure a degree of filter ventilation in the range of 50 to 85%, especially of 65%. They are preferably in the mouth-side direction of this middle one Segment 12
  • the overall filter is of a filter covering 16, for example a filter paper, surround.
  • the core element 15 of the coaxial segment 13 consists of cellulose acetate with a Retention performance of 65 to 95%, in particular of about 80%, based on one unventilated filter.
  • the core element envelope 17 is essentially airtight.
  • the jacket element 14 consists of cellulose acetate or others suitable materials with a low retention rate of 15 to 50% in particular of about 30%, based on the unventilated filter.
  • the train resistance of the core element is greater than the tensile resistance of the jacket element 14 and lies at about 260 mmWS, while the tensile resistance of the matel element 14 is about 120 mmWS is.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Pens And Brushes (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The cigarette comprises a tobacco rod (20) with a core (22), a core sheath (23), a casing (21) and a casing sheath (24). A multi-part ventilated filter (10) is also provided, and consists of a filter sheath (16) and at least two segments in series, at least one of which is a coaxial filter segment (13) with a core (15), a core sheath (17) and a casing (14). The ratio of the drawing resistance (DR) of the rod core (22) to that of the casing (21) is greater than 1, preferably 2-4.

Description

Die vorliegende Erfindung betrifft eine Koaxialcigarette mit einem Koaxialtabakstrang, der einen Strangkern, eine Strangkernumhüllung, einen Strangmantel und eine Strangmantelumhüllung aufweist, und mit einem mehrteiligen ventilierten Filter.The present invention relates to a coaxial cigarette with a coaxial tobacco rod, one strand core, one strand core covering, one strand jacket and one Has strand casing, and with a multi-part ventilated filter.

Eine Koxialcigarette, bei der sowohl der Filter als auch der Tabakstrang koaxial ausgebildet sind, ist aus der DE 41 27 420 C1 bekannt. Die Ausbildung dieser Cigarette gestattet eine Reduzierung des Nebenrauches. Der Filter besteht aus nur einem einzigen koaxialen Längssegment.A Koxialcigarette, in which both the filter and the tobacco rod are coaxial, is known from DE 41 27 420 C1 . The formation of this cigarette allows a reduction in secondary smoke. The filter consists of only a single coaxial longitudinal segment.

Aus der DE 37 43 597 C1 ist ebenfalls eine ventilierte Koaxialcigarette bekannt. Diese Cigarette weist wiederum einen ventilierten Koaxialfilter auf, der aus nur einem Längssegment besteht. Durch den Einsatz von Glimmsalzen werden unerwünschte Rauchbestandteile vermieden.A ventilated coaxial cigarette is also known from DE 37 43 597 C1. This Cigarette in turn has a ventilated coaxial filter that consists of only one Longitudinal segment exists. By using glow salts are undesirable Avoided smoke components.

Eine weitere Koaxialcigarette ist aus der DE 39 01 226 C1 bekannt. Durch die Einstellung der Filtrationsleistung im Filterkern und Filtermantel des koaxialen Filters wird die Geschmackswirkung optimiert.Another coaxial cigarette is known from DE 39 01 226 C1. Through the Setting the filtration capacity in the filter core and filter jacket of the coaxial filter the taste effect is optimized.

Aus der EP 0 539 191 B1 sind Cigarettenfilter mit geringem Gewicht und Cigaretten mit diesen Filtern bekannt, wobei die Filter durch verschiedene Längsabteilungen mehrteilig ausgestaltet werden. Die verwendeten Tabakstränge sind nicht koaxial ausgebildet. Auch die EP 0 474 940 A1 zeigt solche Filterausgestaltungen für nicht-koaxiale Cigaretten.EP 0 539 191 B1 describes low-weight cigarette filters and cigarettes known with these filters, the filters through different longitudinal departments be designed in several parts. The tobacco strands used are not coaxial educated. EP 0 474 940 A1 also shows such filter configurations for non-coaxial ones Cigarettes.

Es ist ein Nachteil des oben erwähnten Standes der Technik, daß noch keine vollständig koaxial ausgebildeten Cigaretten spezifiziert wurden, die speziell als Ultraleicht-Cigarette geeignet sind.It is a disadvantage of the prior art mentioned above that none yet fully coaxial cigarettes have been specified that are specifically designed as Ultralight cigarette are suitable.

Das übliche Problem bei der Entwicklung einer Ultraleicht-Cigarette ist die Erreichung eines sehr niedrigen Kondensatwertes (speziell 1 mg) im Rahmen der realisierbaren Ventilation und einer akzeptablen vom Raucher empfundenen Zügigkeit. Letzere beschränkt den Einsatz von Filtern mit extrem hoher Filterleistung, da Material mit hoher Filterwirksamkeit auch einen hohen spezifischen Zugwiderstand besitzt.The common problem in developing an ultralight cigarette is the achievement a very low condensate value (especially 1 mg) within the realizable Ventilation and an acceptable speed felt by the smoker. The latter limits the use of filters with extremely high filter performance, since material with high filter efficiency also has a high specific tensile resistance.

Das Problem der Erreichung der sehr niedrigen Kondensatwerte wird noch erhöht, wenn aus geschmacklichen Gründen die Verwendung eines bestimmten koaxialen Filtersegments angrenzend an einen koaxialen Tabakstrang erfolgt. Denn das hier bechriebene koaxiale Segment hat notwendigerweise im Außenmantel eine nicht sehr hohe Retentionsleistung und damit auch eine gesamte Retentionsleistung, die niedriger ist als man üblicherweise für den Filter einer 1 mg-Cigarette wählen würde.The problem of reaching very low condensate levels is increased if for taste reasons the use of a certain coaxial Filter segments are carried out adjacent to a coaxial tobacco rod. Because this here described coaxial segment does not necessarily have a very much in the outer jacket high retention rate and thus an overall retention rate that is lower is than you would normally choose for the filter of a 1 mg cigarette.

Es ist die Aufgabe der vorliegenden Erfindung, eine Koaxialcigarette zu schaffen, die in optimaler Weise als Ultraleicht-Cigarette ausgebildet werden kann.It is the object of the present invention to provide a coaxial cigarette which can be optimally designed as an ultralight cigarette.

Diese Aufgabe wird bei einer Cigarette der angegebenen Gattung erfindungsgemäß dadurch gelöst, daß der Filter der Koaxialcigarette eine Filterumhüllung sowie mindestens zwei Längssegmente aufweist, von denen mindestens eines ein Koaxialfiltersegment mit einem Kernelement, einer Kernelementumhüllung und einem Mantelelement ist, und daß das Verhältnis des Zugwiderstandes des Strangkerns zum Zugwiderstand des Strangmantels größer als 1 ist und vorzugsweise im Bereich von 2 bis 4 liegt.This object is achieved according to the invention in the case of a cigarette of the type specified solved in that the filter of the coaxial cigarette has a filter casing as well has at least two longitudinal segments, at least one of which is a Coaxial filter segment with a core element, a core element cladding and one Sheath element is, and that the ratio of the tensile resistance of the strand core to The tensile resistance of the strand jacket is greater than 1 and preferably in the range of 2 to 4.

Vorteilhafterweise wird hierdurch eine Koaxialcigarette geschaffen, die aufgrund ihrer Filterausgestaltung und der Einstellung der Parameter für die koaxialen Bestandteile des Tabakstrangs optimal als Cigarette für das Ultraleicht-Marktsegment geeignet ist.This advantageously creates a coaxial cigarette which, owing to its Filter design and the setting of the parameters for the coaxial components of the tobacco rod is ideally suited as a cigarette for the ultralight market segment.

Es ist die Besonderheit der Erfindung, sowohl die Effekte der koaxialen Segmente (von Strang und Filter) als auch die Erreichung eines sehr niedrigen Kondensatwertes bei positiver Beurteilung von Geschmack und Zügigkeit der Cigarette zu realisieren. Dazu dienen die speziellen Spezifikationen der Einzelsegmente und die spezielle Kombination der Einzelsegmente.It is the peculiarity of the invention, both the effects of the coaxial segments (from Line and filter) as well as achieving a very low condensate value realizing a positive assessment of the taste and speed of the cigarette. To serve the special specifications of the individual segments and the special combination of the individual segments.

Als besonders vorteilhaft erweisen sich Koaxialcigaretten gemäß der vorliegenden Erfindung, wenn das Filter-Koaxialsegment eines oder mehrere der folgenden Merkmale in Kombination aufweist:

  • Das Filter-Koaxialsegment ist das tabakseitige Filterelement;
  • das Kernelement besteht aus Celluloseacetat, Papier oder Crest mit einer unventilierten Retentionsleistung von 65 bis 95 %;
  • die Kernelementumhüllung ist im wesentlichen luftundurchlässig;
  • das Mantelelement besteht aus Celluloseacetat oder anderen geeigneten Materialien mit geringer unventilierter Retentionsleistung von 15 bis 50 %;
  • der Zugwiderstand des Mantelelements liegt im Bereich von 80 bis 150 mmWS;
  • der Zugwiderstand des Kernelements liegt im Bereich von 160 bis 450 mm WS;
  • ein Celluloseacetat-Mantelelement hat einen Einzeititer von 2,5 bis dpf;
  • ein Celluloseacetat-Kernelement hat einen Einzeltiter von 1,5 bis 2,1 dpf.
Coaxial cigarettes according to the present invention prove to be particularly advantageous if the filter coaxial segment has one or more of the following features in combination:
  • The filter coaxial segment is the tobacco filter element;
  • the core element consists of cellulose acetate, paper or crest with an unventilated retention rate of 65 to 95%;
  • the core element envelope is essentially impermeable to air;
  • the jacket element consists of cellulose acetate or other suitable materials with a low unventilated retention capacity of 15 to 50%;
  • the tensile resistance of the jacket element is in the range of 80 to 150 mm WS ;
  • the tensile resistance of the core element is in the range of 160 to 450 mm WS ;
  • a cellulose acetate jacket element has a one-time titer of 2.5 to dpf;
  • a cellulose acetate core element has a single titer of 1.5 to 2.1 dpf.

Vorzugsweise liegt der Zugwiderstand des Koaxialfiltersegments im Bereich von 45 bis 120 mmWS.The tensile resistance of the coaxial filter segment is preferably in the range from 45 to 120 mmWS.

Bevorzugt wird ein unventiliertes Koaxialfiltersegment verwendet.An unventilated coaxial filter segment is preferably used.

Gemäß einer bevorzugten Ausführungsform der erfindungsgemäßen Koaxialcigarette weist der Filter drei Längssegmente, nämlich ein mundseitiges Segment mit niedriger Retention, ein mittleres Segment mit hoher Retention und ein tabakseitiges Koaxialfiltersegment auf.According to a preferred embodiment of the coaxial cigarette according to the invention the filter has three longitudinal segments, namely a lower segment on the mouth side Retention, a middle segment with high retention and a tobacco side Coaxial filter segment.

Das mittlere Filtersegment der erfindungsgemäßen Koaxialcigarette besteht gemäß einer bevorzugten Ausführungsform aus einem Filtermaterial wie Papier, Crest oder vorzugsweise Celluloseacetat, weist einen Zugwiderstand von 30 bis 100 mmWS, vorzugsweise 50 bis 60 mmWS, auf, und sein Einzeltiter für das Celluloseacetat liegt im Bereich von 1,5 bis 5 dpf, vorzugsweise im Bereich von 1,5 bis 2,1 dpf.The middle filter segment of the coaxial cigarette according to the invention is according to a preferred embodiment of a filter material such as paper, crest or preferably cellulose acetate, has a tensile resistance of 30 to 100 mm water column, preferably 50 to 60 mmWS, and its single titer for the cellulose acetate is in the range of 1.5 to 5 dpf, preferably in the range of 1.5 to 2.1 dpf.

Bevorzugt besteht hierbei das mundseitige Segment des Filters einer erfindungsgemäßen Koaxialcigarette aus einem Filtermaterial wie Papier, Crest oder vorzugsweise Celluloseacetat. Es kann ebenfalls ein Hohlmundstück sein. Der Zugwiderstand des mundseitigen Segments liegt im Bereich von 0 (Hohlmundstück) bis 100 mmWS und vorzugsweise im Bereich von 10 bis 15 mmWS.The mouth-side segment of the filter of a filter according to the invention is preferably present Coaxial cigarette made from a filter material such as paper, crest or preferably cellulose acetate. It can also be a hollow mouthpiece. The Draw resistance of the mouth-side segment is in the range from 0 (hollow mouthpiece) to 100 mmWS and preferably in the range of 10 to 15 mmWS.

Der koaxiale Tabakstrang der erfindungsgemäßen Koaxialcigarette weist vorteilhafterweise eines oder mehrere der folgenden Merkmale in Kombination auf:

  • Der gesamte Strangzugwiderstand liegt im Bereich von 30 bis 100 mmWS, vorzugsweise bei 50 mmWS;
  • die Luftdurchlässigkeit der Strangmantelumhüllung liegt im Bereich von 15 bis 300 CU (Coresta-Einheiten), vorzugsweise im Bereich von 50 bis 100 CU;
  • Die Strangmantelumhüllung enthält Glimmsalze wie Na-Acetat oder K-Citrat vorzugsweise K-Citrat in einem Bereich von 1 bis 2,5 %, insbesondere von etwa 1,75%;
  • die Strangkernumhüllung besteht aus Tabakfolie oder Cigarettenpapier mit einer Luftdurchlässigkeit von 0 bis 50 CU, vorzugsweise 0 bis 5 CU;
  • die geschmacksrelevanten Tabake sind vorzugsweise im Strangmantel angeordnet.
The coaxial tobacco rod of the coaxial cigarette according to the invention advantageously has one or more of the following features in combination:
  • The total strand resistance is in the range of 30 to 100 mmWS, preferably 50 mmWS;
  • the air permeability of the strand casing is in the range from 15 to 300 CU (Coresta units), preferably in the range from 50 to 100 CU;
  • The strand casing contains glow salts such as Na acetate or K-citrate, preferably K-citrate in a range of 1 to 2.5%, in particular of about 1.75%;
  • the core wrapping consists of tobacco foil or cigarette paper with an air permeability of 0 to 50 CU, preferably 0 to 5 CU;
  • the taste-relevant tobaccos are preferably arranged in a strand casing.

Alle oben für die erfindungsgemäße Koaxialcigarette beschriebenen Merkmale tragen einzeln oder in Kombination dazu bei, eine besonders für das Ultraleicht-Marktsegment geeignete Koaxialcigarette zu schaffen. Einen Beitrag zur Lösung dieser Aufgabe leisten sowohl die angegebenen Materialparameter als auch die Anordnungsmerkmale für die verschiedenen Bestandteile der Cigarette.Wear all the features described above for the coaxial cigarette according to the invention individually or in combination, one especially for the ultralight market segment to create suitable coaxial cigarette. A contribution to solving this task perform both the specified material parameters and the arrangement characteristics for the different components of the cigarette.

Nach einer bevorzugten Ausführungsform hat der Filter der erfindungsgemäßen Koaxialcigarette eine Gesamtlänge von 21 bis 31 mm und vorzugsweise 27 mm. Die Einzeldimensionierungen sind hierbei wie folgt vorzunehmen:

  • Das mundseitige Segment hat eine Länge von 4 bis 16 mm, vorzugsweise 9 bis 15 mm,
  • das mittlere Segment hat eine Länge von 0 bis 12 mm, vorzugsweise 3 bis 7 mm und
  • das tabakseitige Segment hat eine Länge von 7 bis 16 mm, vorzugsweise 8 bis 13 mm.
According to a preferred embodiment, the filter of the coaxial cigarette according to the invention has an overall length of 21 to 31 mm and preferably 27 mm. The individual dimensions are to be carried out as follows:
  • The mouth-side segment has a length of 4 to 16 mm, preferably 9 to 15 mm,
  • the middle segment has a length of 0 to 12 mm, preferably 3 to 7 mm and
  • the tobacco-side segment has a length of 7 to 16 mm, preferably 8 to 13 mm.

Die Ventilationsöffnungen können durch Laserperforation im Online-Betrieb hergestellt werden. Ebenso ist die Verwendung von vorperforierten Filterumhüllungen denkbar. Die Ventilationsöffnungen sind vorteilhafterweise im Bereich des mittleren Segments angeordnet; wenn die Länge des mundseitigen Segments aber größer ist als 11 mm, können die Ventilationsöffnungen insbesondere auch im Bereich des mundseitigen Segments angeordnet sein.The ventilation openings can be created by laser perforation in online operation become. The use of pre-perforated filter coverings is also conceivable. The ventilation openings are advantageously in the area of the middle segment arranged; if the length of the mouth-side segment is greater than 11 mm, the ventilation openings can in particular also in the area of the mouth Segment be arranged.

Der Filterventilationsgrad liegt bevorzugt im Bereich von 50 bis 85 %.The degree of filter ventilation is preferably in the range from 50 to 85%.

Was den Durchmesser des Filters betrifft, so kann dieser in einem Bereich von 7 bis 9 mm und vorzugsweise bei 7,8 mm liegen, wobei das Kernelement des Koaxialfiltersegments einen Durchmesser von 4 bis 6 mm und vorzugsweise 5 bis 6 mm aufweist.As for the diameter of the filter, it can range from 7 to 9 mm and preferably 7.8 mm, the core element of the coaxial filter segment a diameter of 4 to 6 mm and preferably 5 to 6 mm having.

Der Tabakstrang einer erfindungsgemäßen Koaxialcigarette hat gemäß einer bevorzugten Ausgestaltung einen Durchmesser, der im Bereich von 7 bis 9 mm liegt, und vorzugsweise bei 7,8 mm. Der Strangkern der Koaxialcigarette kann hierbei einen Durchmesser von 4 bis 6 mm und vorzugsweise 5 bis 5,6 mm aufweisen.The tobacco rod of a coaxial cigarette according to the invention has a preferred Design a diameter that is in the range of 7 to 9 mm, and preferably at 7.8 mm. The strand core of the coaxial cigarette can be one Have diameters of 4 to 6 mm and preferably 5 to 5.6 mm.

Die Erfindung wird im Weiteren anhand der beiliegenden einzigen Figur erläutert, die einen Querschnitt durch eine erfindungsgemäße Koaxialcigarette zeigt.The invention is explained below with reference to the accompanying single figure, which shows a cross section through a coaxial cigarette according to the invention.

Die in der Figur dargestellte Koaxialcigarette kann ihrem Aufbau nach in einen Filter 10 und einen Tabakstrang 20 aufgeteilt werden.The structure of the coaxial cigarette shown in the figure can be incorporated into a filter 10 and a tobacco rod 20 are divided.

Der Tabakstrang 20 ist koaxial ausgebildet und weist von innen nach außen die folgenden Bestandteile auf:

  • Den Strangkern 22,
  • die Strangkernumhüllung 23,
  • den Strangmantel 21 und
  • die Strangmantelumhüllung 24.
The tobacco rod 20 is coaxial and has the following components from the inside out:
  • Strand core 22,
  • the strand core cladding 23,
  • the strand jacket 21 and
  • the strand jacket 24.

Die geschmacksrelevanten Tabake dieser Cigarette sind vorzugsweise im Strangmantel 21 angeordnet. Als Strangkernumhüllung wird vorzugsweise eine Tabakfolie verwendet. Der Zugwiderstand des Strangkerns ist größer als derjenige des Strangmantels, was durch eine geeignete Materialauswahl und Einstellung von Parametern wie beispielsweise der Packungsdichte erzielt wird. Geeignete Werte für den Zugwiderstand sind etwa 150 mmWS für den Strangkern 22 und etwa 75 mmWS für den Strangmantel 21, während der Zugwiderstand des gesamten Tabakstrang 20 bei etwa 50 mmWS liegt.The taste-relevant tobacco of this cigarette is preferably wrapped in a rope 21 arranged. A tobacco foil is preferably used as the core wrapping used. The tensile resistance of the strand core is greater than that of the Strand jacket, which is indicated by a suitable material selection and setting Parameters such as the packing density is achieved. Suitable values for the tensile resistance is about 150 mmWS for the strand core 22 and about 75 mmWS for the strand casing 21, while the tensile resistance of the entire tobacco rod 20 at about 50 mmWS.

Der Tabakstrang hat einen üblichen Außendurchmesser von etwa 7,8 mm, der Strangkern 22 liegt im Durchmesserbereich von 5 bis 6 mm.The tobacco rod has a usual outside diameter of about 7.8 mm Strand core 22 is in the diameter range of 5 to 6 mm.

Der Filter 10 schließt sich an den Tabakstrang 20 an. Er besteht in der dargestellten Ausführung aus drei Längssegmenten 11, 12 und 13. Das mundseitige Längssegment 11 des Filters 10 ist ein Segment mit niedriger Retention aus einem Filtermaterial wie Papier, Crest oder vorzugsweise Celluloseacetat. Es weist einen Zugwiderstand von etwa 10 bis 15 mmWS auf.The filter 10 connects to the tobacco rod 20. It consists of the one shown Version made of three longitudinal segments 11, 12 and 13. The mouth-side longitudinal segment 11 of filter 10 is a low retention segment made of a filter material such as Paper, crest or preferably cellulose acetate. It has a tensile resistance of about 10 to 15 mmWS.

Als mittleres Längssegment 12 des Filters 10 ist wiederum ein Filterstöpsel aus Papier, Crest oder vorzugsweise Celluloseacetat vorgesehen. Das Segment 12 weist eine hohe spezifische Retentionsleistung auf, so daß sich selbst für das kurze mittlere Längssegment 12 eine Retentionsleistung von etwa 30% (unventiliert) ergibt und hat einen Zugwiderstand von etwa 50 mmWS. Im dargestellten Beispiel ist dieses mittlere Segment 12 das ventilierte Segment; mit 18 sind Ventilationsöffnungen angedeutet.The middle longitudinal segment 12 of the filter 10 is again a paper filter plug, Crest or preferably cellulose acetate provided. The segment 12 has a high specific retention performance, so that even for the short middle Longitudinal segment 12 gives and has a retention rate of about 30% (unventilated) a tensile resistance of about 50 mmWS. In the example shown, this is the middle one Segment 12 the ventilated segment; with 18 ventilation openings are indicated.

Die Ventilationsöffnungen 18 können durch Online-Perforierung mit Laserstrahlen, d.h. während des Fertigungsprozesses hergestellt werden. Es besteht aber auch die Möglichkeit, vorperforiertes Belagpapier für den Filter zu verwenden. Die Ventilationsöffnungen sorgen für einen Filterventilationsgrad im Bereich von 50 bis 85 %, insbesondere von 65%. Sie liegen bevorzugt in mundseitiger Richtung dieses mittleren Segments 12.The ventilation openings 18 can be perforated online with laser beams, i.e. be made during the manufacturing process. But there is also Possibility to use pre-perforated covering paper for the filter. The ventilation openings ensure a degree of filter ventilation in the range of 50 to 85%, especially of 65%. They are preferably in the mouth-side direction of this middle one Segment 12

Zwischen dem mittleren Segment 12 und dem Tabakstrang 20 liegt nun das Koaxialfiltersegment 13. Es besteht aus:

  • Einem Kernelement 15,
  • einer Kernelementumhüllung 17 und
  • einem Mantelelement 14.
The coaxial filter segment 13 now lies between the middle segment 12 and the tobacco rod 20. It consists of:
  • A core element 15,
  • a core element envelope 17 and
  • a jacket element 14.

Der Gesamtfilter ist von einer Filterumhüllung 16, beispielsweise einem Filterbelagpapier, umgeben. The overall filter is of a filter covering 16, for example a filter paper, surround.

Das Kernelement 15 des Koaxialsegments 13 besteht aus Celluloseacetat mit einer Retentionsleistung von 65 bis 95 % insbesondere von etwa 80%, bezogen auf einen unventilierten Filter. Die Kernelementumhüllung 17 ist im wesentlichen luftundurchlässig. Das Mantelelement 14 besteht aus Celluloseacetat oder anderen geeigneten Materialien mit einer geringen Retentionsleistung von 15 bis 50 % insbesondere von etwa 30%, bezogen auf den unventilierten Filter. Der Zugwiderstand des Kernelements ist größer als der Zugwiderstand des Mantelelementes 14 und liegt bei etwa 260 mmWS, während der Zugwiderstand des Matelelementes 14 etwa 120 mmWS beträgt.The core element 15 of the coaxial segment 13 consists of cellulose acetate with a Retention performance of 65 to 95%, in particular of about 80%, based on one unventilated filter. The core element envelope 17 is essentially airtight. The jacket element 14 consists of cellulose acetate or others suitable materials with a low retention rate of 15 to 50% in particular of about 30%, based on the unventilated filter. The train resistance of the core element is greater than the tensile resistance of the jacket element 14 and lies at about 260 mmWS, while the tensile resistance of the matel element 14 is about 120 mmWS is.

Die weiteren Material- bzw. Dimensionierungsspezifikationen liegen in den Bereichen, die im Vorangehenden angegeben wurden. Durch die geeignete Auswahl dieser Spezifikationen besteht erfindungsgemäß die Möglichkeit, eine für das Ultraleicht-Marktsegment sehr geeignete Koaxialcigarette zur Verfügung zu stellen.The other material and dimensioning specifications are in the areas which have been given above. By the appropriate selection of these According to the invention there is the possibility of specifying one for the ultralight market segment to provide very suitable coaxial cigarettes.

Claims (11)

  1. A coaxial cigarette comprising
    a) a coaxial tobacco rod (20) comprising a rod core (22), a rod core wrapping (23), a rod jacket (21) and a rod jacket wrapping (24) and
    b) a multi-part ventilated filter (10),
    characterised in that
    c) said filter (10) comprises a filter wrapping (16) as well as at least two. longitudinal segments of which at least one is a coaxial filter segment (13) having a core element (15), a core element wrapping (17) and a jacket element (14), and that
    d) the ratio of the resistance to draw of said rod core (22) to the resistance to draw of said rod jacket is greater than unity and preferably in the range of 2 to 4.
  2. The coaxial cigarette as set forth in claim 1, characterised in that said filter (10) comprises three longitudinal segments, namely a mouth-end segment (11) having low retention, a middle segment (12) having high retention and a tobacco end coaxial filter segment (13).
  3. The coaxial cigarette as set forth in one of claims 1 and 2 comprising a filter coaxial segment (13), characterised by at least one of the following features:
    said core element (15) consists of cellulose acetate, paper or crest with a non-ventilated retention of 65 to 95 %;
    said core element wrapping (17) is substantially impermeable to air;
    said jacket element (14) consists of cellulose acetate or other suitable materials having a low non-ventilated retention of 15 to 50% ;
    the resistance to draw of said jacket element (14) is in the range of 80 to 150 mm WC;
    the resistance to draw of said core element (15) is in the range of 160 to 450 mm WC;
    a cellulose acetate jacket element (14) has a single denier of 2.5 to 5 dpf;
    a cellulose acetate core element (15) has a single denier of 1.5 to 2.1 dpf.
  4. The coaxial cigarette as set forth in one or claim 2 of claim 3, characterised in that said middle filter segment (12) consists of a filter material such as paper, crest or preferably cellulose acetate, features a resistance to draw of 30 to 100 mm WC, preferable 50 to 60 mm WC, and that its single denier for the cellulose acetate is in the range of 1.5 to 5 dpf, preferably in the range of 1.5 to 2.1 dpf.
  5. The coaxial cigarette as set forth in any of the claims 2 to 4, characterised in that said mouth-end segment (11) consists of a filter material such as paper, crest or preferably cellulose acetate or is a hollow tip and features a resistance to draw of 0 to 50 mm WC, preferably 10 to 15 mm WC.
  6. The coaxial cigarette as set forth in any of the claims 1 to 5 including a coaxial tobacco rod comprising at least one of said following features:
    the total rod resistance to draw is in the range of 30 to 100 mm WC, preferably at about 50 mm WC;
    the air permeability of said rod jacket wrapping (24) is in the range of 15 to 300 CU, preferably 50 to 100 CU;
    said rod jacket wrapping (24) contains combustion/glowing salts such as Na acetate or K citrate, preferably K citrate in a range of 1 to 2.5 %;
    said rod core wrapping (23) consists of sheet tobacco or cigarette paper having an air permeability of 0 to 50 CU, preferably 0 to 5 CU;
    the taste-relevant tobaccos are arranged preferably in said rod jacket (21).
  7. The coaxial cigarette as set forth in any of the claims 2 to 6, characterised in that said filter has an overall length of 21 to 31 mm, preferably of 27 mm, including
    said mouth-end segment (11) having a length of 4 to 16 mm, preferably 11 to 13 mm,
    said middle segment (12) having a length of 4 to 12 mm, preferably 5 to 7 mm and
    said tobacco-end segment (13) having a length of 7 to 16 mm, preferably 8 to 10 mm,
    the ventilation perforations (18) provided preferably by laser perforation or by use of perforated filter wrapper being arranged in the region of said middle segment (12) or more particularly in the region of said mouth-end segment (11), when the length of said mouth-end segment (11) exceeds 11 mm, and
    the filter ventilation rate being in the range of 50 to 85 %.
  8. The coaxial cigarette as set forth in any of the claims 1 to 7, characterised in that the diameter of said filter (10) is in the range of 7 to 9 mm, preferably about 7.8 mm, said core element (15) of said coaxial filter segment (13) having a diameter of 4 to 6 mm and preferably 5 to 6 mm.
  9. The coaxial cigarette as set forth in any of the claims 1 to 8, characterised in that said tobacco rod (20) has a diameter in the range of 7 to 9 mm, preferably of about 7.8 mm, said rod core (22) having a diameter of 4 to 6 mm, preferably 5 to 5.6 mm.
  10. The coaxial cigarette as set forth in any of the claims 1 to 9, characterised in that the resistance to draw of said coaxial filter segment (13) is in the range of 45 to 120 mm WC.
  11. The coaxial cigarette as set forth in any of the claims 1 to 10, characterised in that said coaxial filter segment (13) is non-ventilated.
EP98109005A 1997-05-30 1998-05-18 Ultra-light coaxial cigarette with a multi-section filter Expired - Lifetime EP0880904B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9830050T SI0880904T1 (en) 1997-05-30 1998-05-18 Ultra-light coaxial cigarette with a multi-section filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722812 1997-05-30
DE19722812A DE19722812C2 (en) 1997-05-30 1997-05-30 Ultralight coaxial cigarette with multi-part filter

Publications (2)

Publication Number Publication Date
EP0880904A1 EP0880904A1 (en) 1998-12-02
EP0880904B1 true EP0880904B1 (en) 2001-10-24

Family

ID=7831018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109005A Expired - Lifetime EP0880904B1 (en) 1997-05-30 1998-05-18 Ultra-light coaxial cigarette with a multi-section filter

Country Status (22)

Country Link
US (1) US6089238A (en)
EP (1) EP0880904B1 (en)
JP (1) JP3431833B2 (en)
KR (1) KR100472838B1 (en)
CN (1) CN1101161C (en)
AT (1) ATE207314T1 (en)
AU (1) AU733726B2 (en)
BR (1) BR9801678A (en)
CA (1) CA2238918C (en)
CZ (1) CZ167798A3 (en)
DE (2) DE19722812C2 (en)
DK (1) DK0880904T3 (en)
EA (1) EA001435B1 (en)
ES (1) ES2166117T3 (en)
HK (1) HK1017590A1 (en)
HU (1) HUP9801269A3 (en)
MY (1) MY132902A (en)
PL (1) PL326407A1 (en)
PT (1) PT880904E (en)
SG (1) SG74628A1 (en)
SI (1) SI0880904T1 (en)
TW (1) TW422684B (en)

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Also Published As

Publication number Publication date
US6089238A (en) 2000-07-18
JP3431833B2 (en) 2003-07-28
HUP9801269A2 (en) 1999-02-01
SI0880904T1 (en) 2002-02-28
HUP9801269A3 (en) 1999-05-28
CZ167798A3 (en) 1999-01-13
CN1203763A (en) 1999-01-06
HU9801269D0 (en) 1998-08-28
KR19980086956A (en) 1998-12-05
DE19722812C2 (en) 2003-02-13
HK1017590A1 (en) 1999-11-26
PL326407A1 (en) 1998-12-07
PT880904E (en) 2002-02-28
CN1101161C (en) 2003-02-12
BR9801678A (en) 1999-05-25
AU6979098A (en) 1998-12-03
SG74628A1 (en) 2000-08-22
AU733726B2 (en) 2001-05-24
ES2166117T3 (en) 2002-04-01
MY132902A (en) 2007-10-31
DE19722812A1 (en) 2000-06-15
EA001435B1 (en) 2001-02-26
ATE207314T1 (en) 2001-11-15
TW422684B (en) 2001-02-21
CA2238918C (en) 2005-05-03
EA199800419A1 (en) 1998-12-24
DK0880904T3 (en) 2001-11-19
KR100472838B1 (en) 2005-07-11
JPH119250A (en) 1999-01-19
EP0880904A1 (en) 1998-12-02
DE59801838D1 (en) 2001-11-29
CA2238918A1 (en) 1998-11-30

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