EP0875160A1 - Ventilated filter cigarette with a coaxial filterelement - Google Patents

Ventilated filter cigarette with a coaxial filterelement Download PDF

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Publication number
EP0875160A1
EP0875160A1 EP98105849A EP98105849A EP0875160A1 EP 0875160 A1 EP0875160 A1 EP 0875160A1 EP 98105849 A EP98105849 A EP 98105849A EP 98105849 A EP98105849 A EP 98105849A EP 0875160 A1 EP0875160 A1 EP 0875160A1
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EP
European Patent Office
Prior art keywords
filter
segment
coaxial
ventilated
core
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
EP98105849A
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German (de)
French (fr)
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EP0875160B1 (en
Inventor
Werner Dr. Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British American Tobacco Germany GmbH
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British American Tobacco Germany GmbH
BAT Cigarettenfabriken GmbH
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Publication of EP0875160A1 publication Critical patent/EP0875160A1/en
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    • 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
    • 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
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon

Definitions

  • the invention relates to a ventilated filter cigarette of the type described in the preamble of claim 1 is described.
  • Ventilated filter cigarettes are known. Such cigarettes have a ventilation zone on the filter, through which air is sucked in when pulling on the cigarette can be.
  • the ventilation zone can be perforated, for example Filter wrapping using laser beams, but also in various other ways getting produced.
  • the ventilation of the filter opens up the possibility of influencing the taste and can also help with modified cigarettes Adjust nicotine and condensate levels.
  • the advantage of the filter cigarette according to the invention is in particular that when smoking the cigarette with the ventilation zone closed, the smoke yield increases significantly less than in ventilated not according to the invention Filter cigarettes.
  • the design of the material specifications and the dimensioning the individual elements of the tobacco rod and the filter act in the manner a changeover valve.
  • the ventilation openings are open, the Smoke essentially through the filter core of the coaxial filter element, while flow guidance automatically when the ventilation openings are covered is present, in which a significant proportion of the cigarette smoke also contains the filter jacket flows through.
  • a cigarette according to the present invention increases For example, the condensate value when covering the ventilation openings only around about half the value of the increase in conventional filter cigarettes.
  • the filter can be a monofilter consisting of a single coaxial segment, but also a filter with several Be longitudinal segments, at least one of which is a coaxial segment.
  • the Ventilation zone is on the coaxial segment.
  • the filter has two Longitudinal segments, the string-side filter segment being a standard filter segment and the adjoining mouth-side segment is a coaxial filter segment is.
  • the filter has three Longitudinal segments, the filter element on the strand side being a conventional standard filter segment, the adjoining middle filter segment is a chamber with a selectively filtering material and the filter segment connected to it is a coaxial filter segment.
  • the installation of an additional segment as a chamber with selectively filtering material allows an advantageous adjustment of the composition of smoke.
  • a fourth filter design option is a filter with three To provide longitudinal segments, the strand-side filter element first common standard filter segment, the adjoining middle filter segment a coaxial filter element and the filter segment connected to it is a second common standard filter segment or a hollow mouthpiece.
  • the sheathing of the coaxial filter element Filter core is substantially impermeable to air, and preferably made of cellulose acetate or paper
  • the diameter of the filter core is dimensioned so that the ratio of the core cross-sectional area to the cross-sectional area of the jacket is significantly less than 1
  • the ratio of the tensile resistances of the filter jacket to Filter core is greater than 0.5, preferably 0.8 to 1.5
  • the specific tensile resistance of the filter core is 0.3 to 0.75, preferably 0.5
  • the ratio of the distance the ventilation zone from the mouth end of the coaxial filter element to Length of the coaxial filter element is greater than 0.8, preferably 0.87 to 0.93
  • the ventilation zone lies on the coaxial filter element, with the tobacco rod
  • the condensate yield is below 25 mg, preferably below 20 mg
  • the tensile resistance of the tobacco rod is below 60 mmWS, preferably below 50 mmWS.
  • the diameter of the filter of the ventilated filter cigarettes according to the present Invention is between 7.7 and 8.0 mm.
  • a ventilated filter cigarette in which the strand-side filter segment made of cellulose acetate there is a low single titer, preferably 2.1 dpf and lower, and has a draw resistance that is less than 60 mmWS, preferably 35 to 50 mmWS.
  • a ventilated filter cigarette according to the invention in which the mouth-side filter segment consists of cellulose acetate has this a high single titer, preferably 8 dpf, and a draw resistance that is lower is as 20 mmWS, preferably 10 mmWS.
  • This mouth-side filter segment can also be a hollow mouthpiece.
  • versions 2 and 3 are combinations of versions 2 and 3 with one additional mouth-side standard segment or a hollow mouthpiece. It can in further versions the mouth or tobacco standard segments also fiber filters with selective interferences such as activated carbon filters. Instead of the standard segments, specially shaped filter segments such as e.g. SCS filters from Filtrona can be used.
  • the materials for the filter core and the filter jacket of the coaxial filter elements can comprise all known filter materials, but preferably cellulose acetate used.
  • the data for the specific train resistance concern a tensile resistance, measured at 17.5 ml / s per unit length by unit area.
  • the length of the coaxial filter element is determined by the maximum predetermined length of the overall filter. The specification for this length can be made from technical or other reasons.
  • the materials for the Strand of tobacco are tobacco materials and / or other thermally decomposable materials.
  • the tobacco rod can be a standard tobacco rod or a coaxial rod.
  • FIG. 1 shows a ventilated filter cigarette according to the invention in one embodiment with a coaxial monofilter. It is therefore a Cigarette according to version no. 2 according to table 1.
  • the filter cigarette 10 according to Figure 1 has a tobacco rod 11 to which a coaxial filter 12 is attached.
  • the coaxial filter 12 has a filter core 14 and a filter jacket 13, the casing the filter core 14 is essentially impermeable to air.
  • By the dotted Line ventilation openings 15 are shown, for example, by laser perforation can be introduced.
  • the condensate yield of the ventilated filter cigarette 10 is approximately 10 mg. Becomes the ventilation zone 15 covered, there is only a slight increase in the Condensate yield by up to 1 mg.
  • FIG. 2 shows a further embodiment of the ventilated according to the invention Filter cigarette with a filter with two longitudinal segments. So here is one Cigarette according to version 1 shown in table 1.
  • the filter cigarette 20 has a tobacco rod 21 and a filter 22.
  • the filter is divided in two in length. It consists of a coaxial filter segment with Filter core 24 and filter jacket 23 and one between coaxial filter segment 23, 24 and tobacco rod 21 located standard filter segment 26.
  • the ventilation openings 25 are in the vicinity of the tobacco-side end of the coaxial segment 23, 24 indicated by a dotted line.
  • the condensate yield of the ventilated filter cigarette 20 is approximately 7 mg. Will the Ventilation zone 25 covered, so there is only a slight increase in Condensate yield by up to 2 mg.

Abstract

The cigarette filter (12) is ventilated by openings (15) and has a coaxial filter element possessing a core (14) with core-wrapping, a casing (13) and a wrapping for it. The tube of tobacco (11) and the filter enable the smoke to flow through the filter core when the ventilation zone is open, and to flow through the casing when the ventilation openings are closed. The filter-core wrapping is air-tight and is preferably made of paper or cellulose acetate. The ratio of the cross-sectional surface of the core to the cross-sectional surface of the casing is less than one.

Description

Die Erfindung betrifft eine ventilierte Filtercigarette der Gattung, wie sie im Oberbegriff des Patentanspruchs 1 beschrieben wird.The invention relates to a ventilated filter cigarette of the type described in the preamble of claim 1 is described.

Ventilierte Filtercigaretten sind bekannt. Solche Cigaretten weisen eine Ventilationszone am Filter auf, durch die beim Ziehen an der Cigarette Luft mit eingesaugt werden kann. Die Ventilationszone kann beispielsweise durch die Perforation der Filterumhüllung mittels Laserstrahlen, aber auch auf verschiedene andere Arten hergestellt werden. Die Ventilation des Filters eröffnet die Möglichkeit der Geschmacksbeeinflussung und kann auch dazu beitragen, bei Cigaretten modifizierte Nikotin- und Kondensatwerte einzustellen.Ventilated filter cigarettes are known. Such cigarettes have a ventilation zone on the filter, through which air is sucked in when pulling on the cigarette can be. The ventilation zone can be perforated, for example Filter wrapping using laser beams, but also in various other ways getting produced. The ventilation of the filter opens up the possibility of influencing the taste and can also help with modified cigarettes Adjust nicotine and condensate levels.

Beim Abrauchen mit geschlossener Ventilationszone steigt die Rauchausbeute deutlich an. When smoking with the ventilation zone closed, the smoke yield increases clearly.

Es ist die Aufgabe der vorliegenden Erfindung, eine ventilierte Filtercigarette zu schaffen, bei der der oben genannte Nachteil nicht auftritt. Insbesondere soll ein weniger starkes Ansteigen der Rauchausbeute beim Abrauchen mit geschlossener Ventilationszone erreicht werden. Diese Aufgabe wird durch eine ventilierte Filtercigarette gelöst, die gemaß dem kennzeichnenden Teil des Patentanspruchs 1 ausgestaltet ist.It is the object of the present invention to provide a ventilated filter cigarette create, in which the above disadvantage does not occur. In particular, a less increase in smoke yield when smoking with closed Ventilation zone can be reached. This task is accomplished through a ventilated filter cigarette solved, designed according to the characterizing part of claim 1 is.

Der Vorteil der erfindungsgemäßen Filtercigarette liegt insbesondere darin, daß beim Abrauchen der Cigarette bei geschlossener Ventilationszone die Rauchausbeute wesentlich weniger stark ansteigt als bei nicht erfindungsgemäßen ventilierten Filtercigaretten. Die Ausgestaltung der Materialspezifikationen und der Dimensionierung der Einzelelemente des Tabakstrangs sowie des Filters wirkt in der Art eines Umschaltventils. Wenn die Ventilationsöffnungen offen sind, so strömt der Rauch im wesentlichen durch den Filterkern des koaxialen Filterelements, während beim Abdecken der Ventilationsöffnungen automatisch eine Strömungsführung vorliegt, bei der ein wesentlicher Anteil des Cigarettenrauchs auch den Filtermantel durchströmt. Bei einer Cigarette nach der vorliegenden Erfindung erhöht sich beispielsweise der Kondensatwert beim Abdecken der Ventilationsöffnungen nur um ca. die Hälfte des Wertes der Erhöhung bei herkömmlichen Filtercigaretten.The advantage of the filter cigarette according to the invention is in particular that when smoking the cigarette with the ventilation zone closed, the smoke yield increases significantly less than in ventilated not according to the invention Filter cigarettes. The design of the material specifications and the dimensioning the individual elements of the tobacco rod and the filter act in the manner a changeover valve. When the ventilation openings are open, the Smoke essentially through the filter core of the coaxial filter element, while flow guidance automatically when the ventilation openings are covered is present, in which a significant proportion of the cigarette smoke also contains the filter jacket flows through. A cigarette according to the present invention increases For example, the condensate value when covering the ventilation openings only around about half the value of the increase in conventional filter cigarettes.

Es bestehen verschiedene Möglichkeiten, den ventilierten Filter einer Cigarette gemäß der vorliegenden Erfindung auszugestalten. Der Filter kann ein Monofilter bestehend aus einem einzelnen Koaxialsegment, aber auch ein Filter mit mehreren Längssegmenten sein, von denen mindestens eines ein Koaxialsegment ist. Die Ventilationszone liegt auf dem Koaxialsegment.There are several ways to filter a cigarette's ventilated filter to design according to the present invention. The filter can be a monofilter consisting of a single coaxial segment, but also a filter with several Be longitudinal segments, at least one of which is a coaxial segment. The Ventilation zone is on the coaxial segment.

Bei einer Ausführungsform der erfindungsgemäßen Cigarette weist der Filter zwei Längssegmente auf, wobei das strangseitige Filtersegment ein übliches Standardfiltersegment und das daran anschließende mundseitige Segment ein Koaxialfiltersegment ist. In one embodiment of the cigarette according to the invention, the filter has two Longitudinal segments, the string-side filter segment being a standard filter segment and the adjoining mouth-side segment is a coaxial filter segment is.

Bei einer anderen Ausführungsform der vorliegenden Erfindung hat der Filter drei Längssegmente, wobei das strangseitige Filterelement ein übliches Standardfiltersegment, das daran anschließende mittlere Filtersegment eine Kammer mit einem selektiv filtrierenden Material und das wiederum hieran anschließende Filtersegment ein Koaxialfiltersegment ist. Der Einbau eines zusätzlichen Segments als Kammer mit selektiv filtrierendem Material gestattet eine vorteilhafte Anpassung der Zusammensetzung des Rauches.In another embodiment of the present invention, the filter has three Longitudinal segments, the filter element on the strand side being a conventional standard filter segment, the adjoining middle filter segment is a chamber with a selectively filtering material and the filter segment connected to it is a coaxial filter segment. The installation of an additional segment as a chamber with selectively filtering material allows an advantageous adjustment of the composition of smoke.

Eine vierte Filterausgestaltungsmöglichkeit besteht darin, einen Filter mit drei Längssegmenten zur Verfügung zu stellen, wobei das strangseitige Filterelement ein erstes übliches Standardfiltersegment, das daran anschließende mittlere Filtersegment ein Koaxialfilterelement und das wiederum hieran anschließende Filtersegment ein zweites übliches Standardfiltersegment oder ein Hohlmundstück ist.A fourth filter design option is a filter with three To provide longitudinal segments, the strand-side filter element first common standard filter segment, the adjoining middle filter segment a coaxial filter element and the filter segment connected to it is a second common standard filter segment or a hollow mouthpiece.

Alle vier oben genannten möglichen Filterausgestaltungen stellen die oben genannten vorteilhaften Wirkungen bei der Abdeckung der Ventilationsöffnungen zur Verfügung.All four possible filter configurations mentioned above represent the above beneficial effects in covering the ventilation openings.

Gemäß einer Ausführungsform der Filtercigarette nach der vorliegenden Erfindung ist diese dadurch gekennzeichnet, daß beim Koaxialfilterelement die Umhüllung des Filterkerns im wesentlichen luftundurchlässig ist, und vorzugsweise aus Celluloseacetat oder Papier besteht, der Durchmesser des Filterkerns so dimensioniert ist, daß das Verhältnis der Kernquerschnittsfläche zur Querschnittsfläche des Mantels deutlich kleiner als 1 ist, das Verhältnis der Zugwiderstände von Filtermantel zu Filterkern größer als 0,5, vorzugsweise 0,8 bis 1,5 ist, der spezifische Zugwiderstand des Filterkerns 0,3 bis 0,75, vorzugsweise 0,5 ist, das Verhältnis des Abstandes der Ventilationszone vom mundseitigen Ende des Koaxialfilterelements zur Länge des Koaxialfilterelements größer als 0,8, vorzugsweise 0,87 bis 0,93 ist, und die Ventilationszone auf dem Koaxialfilterelement liegt, wobei beim Tabakstrang die Kondensatausbeute unter 25 mg liegt, vorzugsweise unter 20 mg, und der Zugwiderstand des Tabakstrangs unter 60 mmWS liegt, vorzugsweise unter 50 mmWS.According to one embodiment of the filter cigarette according to the present invention this is characterized in that the sheathing of the coaxial filter element Filter core is substantially impermeable to air, and preferably made of cellulose acetate or paper, the diameter of the filter core is dimensioned so that the ratio of the core cross-sectional area to the cross-sectional area of the jacket is significantly less than 1, the ratio of the tensile resistances of the filter jacket to Filter core is greater than 0.5, preferably 0.8 to 1.5, the specific tensile resistance of the filter core is 0.3 to 0.75, preferably 0.5, the ratio of the distance the ventilation zone from the mouth end of the coaxial filter element to Length of the coaxial filter element is greater than 0.8, preferably 0.87 to 0.93, and the ventilation zone lies on the coaxial filter element, with the tobacco rod The condensate yield is below 25 mg, preferably below 20 mg, and the tensile resistance of the tobacco rod is below 60 mmWS, preferably below 50 mmWS.

Der Durchmesser des Filters der ventilierten Filtercigaretten gemaß der vorliegenden Erfindung liegt zwischen 7,7 und 8,0 mm.The diameter of the filter of the ventilated filter cigarettes according to the present Invention is between 7.7 and 8.0 mm.

Gemäß einer vorteilhaften Ausgestaltung einer ventilierten Filtercigarette nach der vorliegenden Erfindung, bei der das strangseitige Filtersegment aus Celluloseacetat besteht, hat dieses einen niedrigen Einzeltiter, vorzugsweise 2,1 dpf und niedriger, und weist einen Zugwiderstand auf, der niedriger ist als 60 mmWS, vorzugsweise 35 bis 50 mmWS.According to an advantageous embodiment of a ventilated filter cigarette according to the The present invention, in which the strand-side filter segment made of cellulose acetate there is a low single titer, preferably 2.1 dpf and lower, and has a draw resistance that is less than 60 mmWS, preferably 35 to 50 mmWS.

Bei einer weiteren erfindungsgemäßen Ausgestaltung einer ventilierten Filtercigarette, bei der das mundseitige Filtersegment aus Celluloseacetat besteht, hat dieses einen hohen Einzeltiter, vorzugsweise 8 dpf, und einen Zugwiderstand, der geringer ist als 20 mmWS, vorzugsweise 10 mmWS.In a further embodiment of a ventilated filter cigarette according to the invention, in which the mouth-side filter segment consists of cellulose acetate has this a high single titer, preferably 8 dpf, and a draw resistance that is lower is as 20 mmWS, preferably 10 mmWS.

Dieses mundseitige Filtersegment kann auch ein Hohlmundstück sein.This mouth-side filter segment can also be a hollow mouthpiece.

Die oben angesprochenen verschiedenen Filterversionen für eine erfindungsgemäße ventilierte Filtercigarette sind in der nachstehenden Tabelle 1 nochmals aufgeführt: Version-Nr. Segment 1 Segment 2 Segment 3 1 Standardfilter Koaxialfilter - 2 Koaxialfilter - - 3 Standardfilter Kammer mit selektiv filtrierendem Material Koaxialfilter 4 Standardfilter Koaxialfilter Standardfilter (Die Segmentnummerierung beginnt tabakseitig). The various filter versions mentioned above for a ventilated filter cigarette according to the invention are listed again in Table 1 below: Version no. Segment 1 Segment 2 Segment 3 1 Standard filter Coaxial filter - 2nd Coaxial filter - - 3rd Standard filter Chamber with selective filtering material Coaxial filter 4th Standard filter Coaxial filter Standard filter (The segment numbering starts on the tobacco side).

Weitere mögliche Versionen sind Kombinationen von Versionen 2 und 3 mit einem zusätzlichen mundseitigen Standardsegment oder einem Hohlmundstück. Es können in weiteren Versionen die mund- oder tabakseitigen Standardsegmente auch Faserfilter mit selektiv wirkenden Einstreuungen wie beispielsweise Aktivkohlefilter sein. Anstelle der Standardsegmente können auch speziell geformte Filtersegmente wie z.B. SCS-Filter der Firma Filtrona verwendet werden.Other possible versions are combinations of versions 2 and 3 with one additional mouth-side standard segment or a hollow mouthpiece. It can in further versions the mouth or tobacco standard segments also fiber filters with selective interferences such as activated carbon filters. Instead of the standard segments, specially shaped filter segments such as e.g. SCS filters from Filtrona can be used.

Die Materialien für den Filterkern und den Filtermantel der Koaxialfilterelemente können alle bekannten Filtermaterialien umfassen, vorzugsweise wird aber Celluloseacetat verwendet. Die Angaben für den spezifischen Zugwiderstand betreffen einen Zugwiderstand, gemessen bei 17,5 ml/s pro Längeneinheit mal Flächeneinheit.The materials for the filter core and the filter jacket of the coaxial filter elements can comprise all known filter materials, but preferably cellulose acetate used. The data for the specific train resistance concern a tensile resistance, measured at 17.5 ml / s per unit length by unit area.

Die Länge des Koaxialfilterelements wird durch die maximal vorgegebene Länge des Gesamtfilters mitbestimmt. Die Vorgabe für diese Länge kann aus technischen oder anderen Gründen abgeleitet sein. Hierbei sollten die Ventilationsöffnungen in einem Bereich liegen, der mindestens 11 mm vom mundseitigen Ende entfernt und auf dem Filter im Koaxialsegment liegt. Damit beträgt die Mindestlänge des Koaxialsegments für die Versionen 1 und 3 12 mm. Die Materialien für den Tabakstrang sind Tabakmaterialien und/oder sonstige thermisch zersetzbare Materialien. Der Tabakstrang kann ein Standard-Tabakstrang oder ein Koaxialstrang sein.The length of the coaxial filter element is determined by the maximum predetermined length of the overall filter. The specification for this length can be made from technical or other reasons. The ventilation openings in an area that is at least 11 mm from the mouth end and lies on the filter in the coaxial segment. The minimum length of the Coaxial segments for versions 1 and 3 12 mm. The materials for the Strand of tobacco are tobacco materials and / or other thermally decomposable materials. The tobacco rod can be a standard tobacco rod or a coaxial rod.

Beispiele für die niedrige Zunahme der Rauchausbeute der erfindungsgemäßen Cigaretten bei Abdeckung der Ventilationszone gegenüber konventionellen Cigaretten sind der folgenden Tabelle 2 zu entnehmen. Zunahme der Kondensatmenge bei Abdeckung der Ventilationszone: Kondensatwert nach ISO (PMWNF) bei konventionellen Cigaretten bei erfindungsgemäßen Cigaretten 10 mg 2 - 3 mg 1 mg 7 mg 3 - 4 mg 1 - 2 mg 5 mg 4 - 6 mg 2 - 3 mg Examples of the low increase in the smoke yield of the cigarettes according to the invention when the ventilation zone is covered compared to conventional cigarettes can be found in Table 2 below. Increase in the amount of condensate when the ventilation zone is covered: ISO condensate value (PMWNF) with conventional cigarettes in cigarettes according to the invention 10 mg 2-3 mg 1 mg 7 mg 3-4 mg 1 - 2 mg 5 mg 4 - 6 mg 2-3 mg

Es zeigt sich, daß bei erfindungsgemäßen Cigaretten jeweils nur die Hälfte (oder weniger) der Zunahme der Kondensatmenge zu verzeichnen ist, die bei konventionellen ventilierten Filtercigaretten auftritt.It turns out that in the case of cigarettes according to the invention only half (or less) the increase in the amount of condensate can be observed, that of conventional ventilated filter cigarettes occurs.

Die Kondensatwerte sind als PMWNF angegeben. (PMWNF = particulate matter water nicotin free = Kondensat).The condensate values are given as PMWNF. (PMWNF = particulate matter water nicotine free = condensate).

Die Erfindung wird im weiteren anhand zweier Ausführungsbeispiele unter Zuhilfenahme der beiliegenden Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine schematische Querschnittsansicht einer Ausführungsform der erfindungsgemäßen ventilierten Filtercigarette; und
Figur 2
eine schematische Schnittansicht einer anderen Ausführungsform einer erfindungsgemäßen ventilierten Filtercigarette.
The invention is explained in more detail below using two exemplary embodiments with the aid of the accompanying drawings. Show it:
Figure 1
a schematic cross-sectional view of an embodiment of the ventilated filter cigarette according to the invention; and
Figure 2
is a schematic sectional view of another embodiment of a ventilated filter cigarette according to the invention.

Die Figur 1 zeigt eine erfindungsgemäße ventilierte Filtercigarette in einer Ausführungsform mit einem koaxialen Monofilter. Es handelt sich somit um eine Cigarette nach der Version Nr. 2 gemäß Tabelle 1. Die Filtercigarette 10 nach Figur 1 weist einen Tabakstrang 11 auf, an dem ein Koaxialfilter 12 befestigt ist. Der Koaxialfilter 12 hat einen Filterkern 14 und einen Filtermantel 13, die Umhüllung des Filterkerns 14 ist im wesentlichen luftundurchlässig. Durch die gepunktete Linie sind Ventilationsöffnungen 15 dargestellt, die beispielsweise durch Laserperforation eingebracht werden können.FIG. 1 shows a ventilated filter cigarette according to the invention in one embodiment with a coaxial monofilter. It is therefore a Cigarette according to version no. 2 according to table 1. The filter cigarette 10 according to Figure 1 has a tobacco rod 11 to which a coaxial filter 12 is attached. The coaxial filter 12 has a filter core 14 and a filter jacket 13, the casing the filter core 14 is essentially impermeable to air. By the dotted Line ventilation openings 15 are shown, for example, by laser perforation can be introduced.

Die Cigarette nach Figur 1 hat die folgenden Spezifikationen:The cigarette of Figure 1 has the following specifications:

Beispiel 1:Example 1: Tabakstrang (11):Tobacco strand (11):

Kondensatausbeute (PMWNF):Condensate yield (PMWNF):
19 mg19 mg
Strangzugwiderstand:String resistance:
50 mmWS50 mmWS
Filter:Filter:

  • Typ: koaxialer Monofilter (12)Type: coaxial monofilter (12)
  • Materialien: CelluloseacetatMaterials: cellulose acetate
  • Länge 27 mmLength 27 mm
  • Lage der Ventilationszone (15): 25 mm vom MundendePosition of the ventilation zone (15): 25 mm from the mouth end
  • Außendurchmesser: 7,85 mmOutside diameter: 7.85 mm
  • Innendurchmesser: 3,4 mmInner diameter: 3.4 mm
  • Zugwiderstand des Filtermantels (13): 140 mmWSDraw resistance of the filter jacket (13): 140 mmWS
  • Einzeltiter des Materials des Filtermantels (13): 3YIndividual titer of the material of the filter jacket (13): 3Y
  • Zugwiderstand des Filterkerns (14): 140 mmWSDraw resistance of the filter core (14): 140 mmWS
  • Einzeltiter des Materials des Innensegments des Filterkerns (14): 8YIndividual titer of the material of the inner segment of the filter core (14): 8Y
  • Ventilationsgrad: 50 %Degree of ventilation: 50%

    • Die Kondensatausbeute der ventilierten Filtercigarette 10 beträgt ca. 10 mg. Wird die Ventilationszone 15 abgedeckt, so erfolgt nur eine geringfügige Erhöhung der Kondensatausbeute um bis zu 1 mg.The condensate yield of the ventilated filter cigarette 10 is approximately 10 mg. Becomes the ventilation zone 15 covered, there is only a slight increase in the Condensate yield by up to 1 mg.

    Die Figur 2 zeigt eine weitere Ausführungsform der Erfindungsgemäß ventilierten Filtercigarette mit einem Filter mit zwei Längssegmenten. Hier wird demnach eine Cigarette nach der Version 1 aus Tabelle 1 dargestellt. FIG. 2 shows a further embodiment of the ventilated according to the invention Filter cigarette with a filter with two longitudinal segments. So here is one Cigarette according to version 1 shown in table 1.

    Die Filtercigarette 20 weist einen Tabakstrang 21 und einen Filter 22 auf. Der Filter ist der Länge nach zweigeteilt. Er besteht aus einem Koaxialfiltersegment mit Filterkern 24 und Filtermantel 23 und einem zwischen Koaxialfiltersegment 23, 24 und Tabakstrang 21 befindlichen Standardfiltersegment 26. Die Ventilationsöffnungen 25 sind in der Nähe des tabakseitigen Endes des Koaxialsegmentes 23, 24 durch eine gepunktete Linie angedeutet.The filter cigarette 20 has a tobacco rod 21 and a filter 22. The filter is divided in two in length. It consists of a coaxial filter segment with Filter core 24 and filter jacket 23 and one between coaxial filter segment 23, 24 and tobacco rod 21 located standard filter segment 26. The ventilation openings 25 are in the vicinity of the tobacco-side end of the coaxial segment 23, 24 indicated by a dotted line.

    Die Cigarette nach Figur 2 hat die folgenden Spezifikationen:The cigarette of Figure 2 has the following specifications:

    Beispiel 2:Example 2: Tabakstrang (20):Tobacco strand (20):

    Kondensatausbeute (PMWNF):Condensate yield (PMWNF):
    19 mg19 mg
    Strangzugwiderstand:String resistance:
    45 mmWS45 mmWS
    Filter (22):Filter (22):

  • Typ: Dualfilter mit mundseitigem Koaxialsegment (23, 24)Type: Dual filter with mouth-side coaxial segment (23, 24)
  • Länge: 27 mmLength: 27 mm
  • Materialien: CelluloseacetatMaterials: cellulose acetate
  • Mundseitiges Element (23, 24):Mouth-side element (23, 24):
  • Typ: koaxialType: coaxial
  • Länge: 21 mmLength: 21 mm
  • Außendurchmesser: 7,8 mmOutside diameter: 7.8 mm
  • Innendurchmesser: 3,4 mmInner diameter: 3.4 mm
  • Lage der Ventilationszone (25): 19 mm vom MundendePosition of the ventilation zone (25): 19 mm from the mouth end
  • Zugwiderstand des Filtermantels (23): 110 mmWSDraw resistance of the filter jacket (23): 110 mmWS
  • Einzeltiter des Materials des Filtermantels (23): 3YIndividual titer of the material of the filter jacket (23): 3Y
  • Zugwiderstand des Filterkerns (24): 110 mmWSDraw resistance of the filter core (24): 110 mmWS
  • Einzeltiter des Materials des Filterkerns (24): 8YIndividual titer of the material of the filter core (24): 8Y
  • Ventilationsgrad: 50 % Degree of ventilation: 50%
  • Tabakseitiges Segment (26):Tobacco side segment (26):
  • Typ: konventionellType: conventional
  • Länge: 6 mmLength: 6 mm
  • Zugwiderstand: 35 mmWSDraw resistance: 35 mmWS
  • Einzeltiter: 2,1YIndividual titer: 2.1Y

    • Die Kondensatausbeute der ventilierten Filtercigarette 20 beträgt ca. 7 mg. Wird die Ventilationszone 25 abgedeckt, so erfolgt nur eine geringfügige Erhöhung der Kondensatausbeute um bis zu 2 mg.The condensate yield of the ventilated filter cigarette 20 is approximately 7 mg. Will the Ventilation zone 25 covered, so there is only a slight increase in Condensate yield by up to 2 mg.

    Claims (9)

    Ventilierte Filtercigarette (10, 20) mit a) einem Tabakstrang (11, 21) b) einer Umhüllung für den Tabakstrang (11, 21), und c) einem über Ventilationsöffnungen (15, 25) ventilierten Filter (12, 22) mit einem koaxialen Filterelement (13, 14; 23, 24), das einen Filterkern (14), eine Umhüllung für den Filterkern (14), einen Filtermantel (13, 23) und eine Umhüllung für den Filtermantel (13, 23) aufweist,
    dadurch gekennzeichnet, daß     d) der Tabakstrang (11, 21) und der Filter (12, 22) bezüglich ihrer Materialspezifikationen und der Dimensionierung ihrer Einzelelemente so ausgestaltet sind, daß bei offener Ventilationszone der Rauch im wesentlichen durch den Filterkern und beim Abdecken der Ventilationsöffnungen (15, 25) der Rauch der Cigarette zu einem wesentlichen Anteil durch den Filtermantel (13, 23) des koaxialen Filterelementes (13, 14; 23, 24) strömt.     Ventilated filter cigarette (10, 20) with a) a tobacco rod (11, 21) b) a wrapper for the tobacco rod (11, 21), and c) a filter (12, 22) ventilated via ventilation openings (15, 25) with a coaxial filter element (13, 14; 23, 24) which has a filter core (14), a casing for the filter core (14), a filter jacket ( 13, 23) and an envelope for the filter jacket (13, 23),
    characterized in that     d) the tobacco rod (11, 21) and the filter (12, 22) are designed with regard to their material specifications and the dimensioning of their individual elements so that when the ventilation zone is open, the smoke essentially through the filter core and when covering the ventilation openings (15, 25) the smoke of the cigarette flows through the filter jacket (13, 23) of the coaxial filter element (13, 14; 23, 24) to a substantial extent.     Ventilierte Filtercigarette (20) nach Anspruch 1, dadurch gekennzeichnet, daß der Filter (22) zwei Längssegmente aufweist, wobei das strangseitige Filtersegment (26) ein übliches Standardfiltersegment und das daran anschließende mundseitige Segment ein Koaxilfiltersegment (23, 24) ist.Ventilated filter cigarette (20) according to claim 1, characterized in that the Filter (22) has two longitudinal segments, the filter segment (26) on the strand side a common standard filter segment and the adjoining mouth-side segment is a coaxial filter segment (23, 24). Ventilierte Filtercigarette nach Anspruch 1, dadurch gekennzeichnet, daß der Filter drei Längssegmente aufweist, wobei das strangseitige Filterelement ein übliches Standardfiltersegment, das daran anschließende mittlere Filtersegment eine Kammer mit einem selektiv filtrierenden Material und das wiederum hieran anschließende Filtersegment ein Koaxialfilterelement ist.Ventilated filter cigarette according to claim 1, characterized in that the Has filter three longitudinal segments, wherein the strand-side filter element usual standard filter segment, the adjoining middle filter segment a Chamber with a selectively filtering material and the following Filter segment is a coaxial filter element. Ventilierte Filtercigarette nach Anspruch 1, dadurch gekennzeichnet, daß der Filter drei Längssegmente aufweist, wobei das strangseitige Filterelement ein erstes übliches Standardfiltersegment, das daran anschließende mittlere Filtersegment ein Koaxialfilterelement und das wiederum hieran anschließende Filtersegment ein zweites übliches Standardfiltersegment ist.Ventilated filter cigarette according to claim 1, characterized in that the Filter has three longitudinal segments, the strand-side filter element a first usual standard filter segment, the adjoining middle filter segment Coaxial filter element and the filter segment connected to it second common standard filter segment is. Ventilierte Filtercigarette nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß beim Koaxialfilterelement (13, 14; 23, 24): die Umhüllung des Filterkerns (14, 24) im wesentlichen luftundurchlässig ist, und vorzugsweise aus Celluloseacetat oder Papier besteht, der Durchmesser des Filterkerns (14, 24) so dimensioniert ist, daß das Verhältnis der Kernquerschnittsfläche zur Querschnittsfläche des Mantels (13, 23) deutlich kleiner als 1 ist, das Verhältnis der Zugwiderstände von Filtermantel (13, 23) zu Filterkern (14, 24) größer als 0,5, vorzugsweise 0,8 bis 1,5, ist, der spezifische Zugwiderstand des Filterkerns (14, 24), 0,3 bis 0,75, vorzugsweise 0,5 ist, das Verhältnis des Abstandes der Ventilationszone (15, 25) vom mundseitigen Ende des Koaxialfilterelements zur Länge des Koaxialfilterelements größer als 0,8, vorzugsweise 0,87 bis 0,93 ist, und die Ventilationszone auf dem Koaxialfilterelement liegt,
    wobei beim Tabakstrang (11, 21):     die Kondensatausbeute unter 25 mg liegt, vorzugsweise unter 20 mg, und der Zugwiderstand unter 60 mmWS liegt, vorzugsweise unter 50 mmWS.     Ventilated filter cigarette according to one of claims 1 to 4, characterized in that in the coaxial filter element (13, 14; 23, 24): the covering of the filter core (14, 24) is essentially impermeable to air and preferably consists of cellulose acetate or paper, the diameter of the filter core (14, 24) is dimensioned such that the ratio of the core cross-sectional area to the cross-sectional area of the jacket (13, 23) is significantly less than 1, the ratio of the tensile resistances of the filter jacket (13, 23) to the filter core (14, 24) is greater than 0.5, preferably 0.8 to 1.5, the specific tensile resistance of the filter core (14, 24) is 0.3 to 0.75, preferably 0.5, the ratio of the distance of the ventilation zone (15, 25) from the mouth end of the coaxial filter element to the length of the coaxial filter element is greater than 0.8, preferably 0.87 to 0.93, and the ventilation zone lies on the coaxial filter element,
    with the tobacco rod (11, 21):     the condensate yield is below 25 mg, preferably below 20 mg, and the tensile resistance is below 60 mmWS, preferably below 50 mmWS.     Ventilierte Filtercigarette nach Anspruch 5, dadurch gekennzeichnet, daß der Durchmesser des Filters (12, 22) zwischen 7,7 und 8,0 mm liegt.Ventilated filter cigarette according to claim 5, characterized in that the The diameter of the filter (12, 22) is between 7.7 and 8.0 mm. Ventilierte Filtercigarette nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das strangseitige Filtersegment aus Celluloseacetat besteht, einen niedrigen Einzeltiter, vorzugsweise 2,1 dpf und niedriger, und einen Zugwiderstand aufweist, der geringer ist als 60 mmWS, vorzugsweise 35 bis 50 mmWS.Ventilated filter cigarette according to one of claims 2 to 6, characterized in that that the strand-side filter segment consists of cellulose acetate, one low single titer, preferably 2.1 dpf and lower, and a draw resistance which is less than 60 mmWS, preferably 35 to 50 mmWS. Ventilierte Filtercigarette nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß das mundseitige Filtersegment aus Celluloseacetat besteht, einen hohen Einzeltiter, vorzugsweise 8 dpf und einen Zugwiderstand aufweist, der geringer ist als 20 mmWS, vorzugsweise 10 mmWS.Ventilated filter cigarette according to one of claims 4 to 6, characterized in that that the mouth-side filter segment consists of cellulose acetate, one high individual titer, preferably 8 dpf and a tensile resistance that is less than 20 mmWS, preferably 10 mmWS. Ventilierte Filtercigarette nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß das mundseitige Filtersegment ein Hohlmundstück ist.Ventilated filter cigarette according to one of claims 4 to 6, characterized in that that the mouth-side filter segment is a hollow mouthpiece.
    EP98105849A 1997-04-30 1998-03-31 Ventilated filter cigarette with a coaxial filterelement Expired - Lifetime EP0875160B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19718296A DE19718296B4 (en) 1997-04-30 1997-04-30 Ventilated filter cigarette with a coaxial filter element
    DE19718296 1997-04-30

    Publications (2)

    Publication Number Publication Date
    EP0875160A1 true EP0875160A1 (en) 1998-11-04
    EP0875160B1 EP0875160B1 (en) 2002-05-15

    Family

    ID=7828241

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98105849A Expired - Lifetime EP0875160B1 (en) 1997-04-30 1998-03-31 Ventilated filter cigarette with a coaxial filterelement

    Country Status (13)

    Country Link
    US (1) US5979459A (en)
    EP (1) EP0875160B1 (en)
    JP (1) JP3038182B2 (en)
    KR (1) KR100268330B1 (en)
    CN (1) CN1101160C (en)
    AU (1) AU727333B2 (en)
    BR (1) BR9801489A (en)
    CA (1) CA2235537C (en)
    DE (1) DE19718296B4 (en)
    HK (1) HK1011172A1 (en)
    ID (1) ID20244A (en)
    MY (1) MY119924A (en)
    SG (1) SG70077A1 (en)

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    WO2001064061A1 (en) * 2000-03-01 2001-09-07 Reemtsma Cigarettenfabriken Gmbh Item for smoking
    US8550092B2 (en) 2007-07-17 2013-10-08 British American Tobacco (Investments) Limited Filter

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    US7856990B2 (en) * 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
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    US8573230B2 (en) * 2005-12-12 2013-11-05 Philip Morris Usa Inc. Smoking article with coaxial tobacco rod
    GB0603126D0 (en) * 2006-02-16 2006-03-29 British American Tobacco Co Improvements relating to smoking articles and filters therefor
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    US8353298B2 (en) 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
    US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
    TW200900014A (en) 2007-03-09 2009-01-01 Philip Morris Prod Smoking article filter with annular restrictor and downstream ventilation
    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
    US7597058B2 (en) * 2007-03-22 2009-10-06 Aisin Seiki Kabushiki Kaisha Apparatus for adjusting timing of needle and looptaker of sewing machine
    EP2253231A1 (en) * 2009-05-18 2010-11-24 Philip Morris Products S.A. Smoking article with improved flow restriction element
    US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
    US8997755B2 (en) * 2009-11-11 2015-04-07 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
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    US10609955B2 (en) 2011-04-08 2020-04-07 R.J. Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter
    EP2510814A1 (en) * 2011-04-15 2012-10-17 Philip Morris Products S.A. Ventilated smoking article including sorbent material
    JP6326410B2 (en) 2012-05-31 2018-05-16 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Smoking articles with concentric filters
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    GB201908353D0 (en) * 2019-06-11 2019-07-24 Nicoventures Trading Ltd A mouthpiece and an article for use in an aerosol provision system

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    DE19925313A1 (en) * 1999-05-27 2000-12-07 Reemtsma H F & Ph Ventilated filter cigarette
    WO2000072705A1 (en) 1999-05-27 2000-12-07 Reemtsma Cigarettenfabriken Gmbh Ventilated filter cigarette
    DE19925313C2 (en) * 1999-05-27 2002-04-11 Reemtsma H F & Ph Ventilated filter cigarette
    WO2001064061A1 (en) * 2000-03-01 2001-09-07 Reemtsma Cigarettenfabriken Gmbh Item for smoking
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    US10334875B2 (en) 2007-07-17 2019-07-02 British American Tobacco (Investments) Limited Filter

    Also Published As

    Publication number Publication date
    CA2235537A1 (en) 1998-10-30
    MY119924A (en) 2005-08-30
    AU727333B2 (en) 2000-12-07
    DE19718296B4 (en) 2006-06-29
    CN1101160C (en) 2003-02-12
    KR100268330B1 (en) 2000-10-16
    DE19718296A1 (en) 1998-11-05
    HK1011172A1 (en) 1999-07-09
    CN1200899A (en) 1998-12-09
    BR9801489A (en) 1999-03-02
    AU6369998A (en) 1998-11-05
    US5979459A (en) 1999-11-09
    ID20244A (en) 1998-11-05
    KR19980081360A (en) 1998-11-25
    SG70077A1 (en) 2000-01-25
    MX9803363A (en) 1998-12-31
    JP3038182B2 (en) 2000-05-08
    JPH10327838A (en) 1998-12-15
    EP0875160B1 (en) 2002-05-15
    CA2235537C (en) 2000-12-05

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