EP0716816B1 - Segmented filter cigarette - Google Patents

Segmented filter cigarette Download PDF

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Publication number
EP0716816B1
EP0716816B1 EP95119328A EP95119328A EP0716816B1 EP 0716816 B1 EP0716816 B1 EP 0716816B1 EP 95119328 A EP95119328 A EP 95119328A EP 95119328 A EP95119328 A EP 95119328A EP 0716816 B1 EP0716816 B1 EP 0716816B1
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EP
European Patent Office
Prior art keywords
filter
segment
jacket
draw
resistance
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
EP95119328A
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German (de)
French (fr)
Other versions
EP0716816A2 (en
EP0716816A3 (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
Original Assignee
British American Tobacco Germany GmbH
BAT Cigarettenfabriken GmbH
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Filing date
Publication date
Application filed by British American Tobacco Germany GmbH, BAT Cigarettenfabriken GmbH filed Critical British American Tobacco Germany GmbH
Publication of EP0716816A2 publication Critical patent/EP0716816A2/en
Publication of EP0716816A3 publication Critical patent/EP0716816A3/en
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Publication of EP0716816B1 publication Critical patent/EP0716816B1/en
Anticipated expiration legal-status Critical
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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
    • A24D1/00—Cigars; Cigarettes

Definitions

  • the invention relates to a segment filter cigarette according to the Preamble of claim 1.
  • a common problem with conventional cigarettes relates to the fact that they are used in standard smoking an increase in the amount of condensate per train with increasing smoke length or show number of moves. Because light and ultra light Cigarettes only according to the value printed on the box may have low amounts of condensate per total cigarette, this change in the amount of condensate causes these cigarettes insufficient when smoking and on the first few moves Have plenty of flavor and only after a few moves the expected Achieve taste.
  • the smoking article described there has a tobacco rod with two axial segments, the segment which is not lit, has an average density that is at least Is 20% greater than the average density of the segment to be lit. Furthermore, the segment to be lit has a nicotine content, which is higher than that of the non-ignitable Segments in this way, even with the first moves to deliver a strong taste impression.
  • segment filter cigarette which the Overcomes the disadvantages of the prior art described above.
  • a segment filter cigarette is proposed that do not have an abrupt difference in taste Has segment transition and the same or similar tobacco in can use the segments. This can increase the vigor the first few moves not only due to the tobacco rod construction, but also by combining it with a special filter can be reinforced.
  • Such a coaxial structure allows a different one Design of the inner and outer sections of the segments regarding the desired taste effect.
  • the design of the train resistance in the inner and outer Sections affect the taste effect in this respect that no one is caused by different tobacco abrupt difference in taste at the segment transition arises even though the inner cores of the segments as well as the coats the segments have the same or similar condensate potential, which means that the same for the successive segments or very similar tobacco can be used.
  • the cigarette created according to the invention very good taste characteristics even during the first puffs of smoke has that over the entire course of smoking are essentially maintained. This will the total amount of condensate generated during smoking distributed more evenly across the individual trains.
  • the length of the entire tobacco rod of an inventive Cigarette can be 40 to 100 mm and will preferably be 45 to 70 mm.
  • the inner cores of the tobacco rod a diameter of 3 to 6 mm and preferably 4.5 to 5.5 mm exhibit. What is the length of the first burning segment relates, this is the preferred embodiment 0.1 to 0.8 times and preferably 0.3 to 0.4 times correspond to the total length of the tobacco rod.
  • Both the inner cores and the shells preferably have an additional joint covering of the different segments, which is made of paper or tobacco foil.
  • This measure can be an economical manufacture for the longitudinal axial Strand formation can be guaranteed.
  • this common wrapping can also be used as a single wrapping serve.
  • the segment filter cigarette according to the invention is preferred characterized in that it is a coaxial, from a Filter core, an envelope for the filter core, a filter jacket and an envelope for the filter jacket existing Has filter, the filter core and filter jacket from known Filter materials, in particular made of fibers or fleece are.
  • the diameter of the filter core can be 2.5 up to 6.5 mm and preferably 3.5 to 5.5 mm in size.
  • the envelope of the filter core advantageously consists of Paper or tobacco foil, foil material is also possible Cellulose acetate or polyolefins, such as in particular polyethylene or polypropylene, and has low air permeability on or is preferably impermeable to air.
  • the Filters have further filter segments adjoining the mouth.
  • the coaxial filter elements are one preferred Design of the segment filter cigarette according to the invention trained that one of the two coaxial filter parts, namely Filter core or jacket, has a high filter efficiency, while the other has a low filter efficiency having.
  • the first embodiment of the segment filter cigarette according to the The present invention is characterized in that the ratio the tensile resistance of the jacket of the first to burn Segment to the tensile resistance of the inner core of the first burning Segment is smaller than the ratio of the tensile resistance of the jacket of the filter-side segment to the draw resistance the inner core of the filter-side segment, where the tobacco of both coats has a high condensate potential.
  • the filter-side segment is preferably the smoke its inner core, i.e. the area with low condensate potential, sucked in, so that the taste effect of the two Segments remain essentially the same strength.
  • Segment filter cigarette is referred to as Version A can be called.
  • the version A cigarette has a draw resistance of the jacket of the first burning segment, based on 63 mm tobacco rod length 20 to 40 mm WS, preferably 25 to 35 mm WS, while the tensile resistance of the inner core is 300 to 600 mm WS and preferably about 450 to 550 mm WS.
  • the Version A can also be characterized in that the Draw resistance of the jacket of the filter-side segment, related on 63 mm tobacco rod length, 100 to 300 mm WS, preferably is about 130 to 170 mm WS, while the tensile resistance of the Inner core of this segment 50 to 150 mm WS and preferably is about 75 to 125 mm WS.
  • a coaxial filter assigned to this version A advantageously has a filter efficiency of the filter core of 10 to 60%, preferably 10 to 30%, while filtering effectiveness of the filter jacket 70 to 100%, preferably 90 to Is 100% and the filter has a degree of ventilation from 0 to Has 80%.
  • a segment filter cigarette according to the present invention it is possible to change the tensile resistances of the filter elements in Depending on the filter ventilation used, that the ratio of the to the periphery of the coaxial The amount of smoke flowing into the core of the filter coaxial filter inflowing amount of smoke essentially equal to the ratio of those flowing out of the tobacco jacket Amount of smoke to the amount of smoke flowing out of the tobacco core, after the first one is burned Tobacco rod segments.
  • the coaxial filter another significant amount to increase the strength of the first moves bring. This happens because, depending on the Difference between the flow conditions in the line, which again from the changing tension resistance conditions there depend, and the flow conditions in the filter changing proportion of smoke in the highly effective filter jacket to be led.
  • Version B the inventive one Segment filter cigarette regarding the tobacco rod and the Form filters are described. This version is called Version B designated.
  • the segment filter cigarette according to version B of the present Invention is characterized in that the ratio the tensile resistance of the jacket of the first burning segment the tensile resistance of the inner core of the one that burns first Segment is greater than the ratio of the train resistance of the jacket of the filter-side segment to the tensile resistance of the Inner core of the filter-side segment, the tobacco of The inner cores are high and the tobacco of the coat is low Have condensate potential.
  • the train resistance first preferably the smoke from the inner core of the sucked first burning segment, leaving a strong taste impression when smoking and the first few moves.
  • the first burning segment is smoked a gradual adaptation to the flow conditions in the filter-side segment in which - again through the setting the train resistance - preferably the smoke from the coat with the lower condensate potential.
  • the taste impression of the first few moves is strong enough and there is no abrupt change in taste at the segment transition, i.e. also here the amount of condensate available becomes even distributed on every train.
  • the segment filter cigarette according to version B the tensile resistance of the jacket is the first burning segment, based on 63 mm tobacco rod length, 100 to 300 mm WS and preferably about 125 to 175 mm WS, while the tensile resistance of the inner core is 50 to 100 mm WS and preferably about 60 to 80 mm WS.
  • Version B is the segment filter cigarette according to the invention characterized in that the train resistance of the jacket of the filter-side segment, based on 63 mm Tobacco rod length, 25 to 100 mm WS and preferably 30 mm WS while the tensile resistance of the inner core of this segment 125 to 300 mm WS and preferably 150 mm WS.
  • the coaxial filter assigned to this version B is designed in such a way that the filter effectiveness of the filter core is 70 to 100%, preferably 90 to 100%, while the filter efficiency of the filter jacket 10 to 60%, preferably 10 to 30% and the filter has a degree of ventilation of 0 to 80% Has.
  • Both versions of the segment filter cigarette according to the invention described above also show on light and ultralight cigarettes the advantage that already when smoking and when the first few moves a relatively strong one, only when smoking the taste impression changes to a small extent.
  • Segment filter cigarette has one to be lit and first burning coaxial segment 1 and a mouth or filter side coaxial segment 2, which together the tobacco rod form.
  • a coaxial filter 3 is located on the filter-side segment 2 attached to the tobacco rod, according to the prior art in general by a covering paper, not shown in the figure.
  • the first burning segment 1 has the following components on: an inner core 1i made of a tobacco material, a Envelope 11 for the inner core 1i, a surrounding the inner core Sheath 1a and an envelope 12 for the sheath 1a. That on the second segment 2 adjoining the first segment 1 has the the following components: an inner core 2i made of tobacco material, an envelope 21 for the inner core 2i, a jacket 2a, the surrounds the inner core 2i and its casing 21, and a casing 22 for the coat.
  • the envelopes 11 and 21 for the inner cores 1i and 2i are here made of paper or tobacco foil and have a low air permeability. You can also completely be impermeable to air.
  • the outer coverings 12, 22 of the shells 1a and 2a are also formed from cigarette paper or tobacco foil and preferred highly breathable.
  • both the inner cores 1i, 2i as well as the tobacco coats 1a, 2a of the two Segments 1, 2 additionally have a common outer covering to have; in the figure, this common outer wrapper is for the two inner cores 1i, 2i by reference numeral 25 and common outer casing for the two coats 1a, 2a through the reference numeral 35 indicated.
  • the tobaccos of the two inner cores 1i, 2i have the same or a very similar condensate potential; also the tobacco of the both coats 1a, 2a have the same or a very similar one Condensate potential, but the condensate potential of the inner cores 1i, 2i and shells 1a, 2a very different are, i.e. the condensate potential is very low and the other relatively high.
  • a segment 3 is connected to the segment 2 by a coaxial filter Filter core 3i, an envelope 31 for the filter core 3i, one Filter casing 3a and an envelope 32 for the filter casing 3a on.
  • the connection between tobacco rod and filter 3 is made with the usual means, e.g. B. a covering paper.
  • the wrapper 31 is made of paper or a film, e.g. out Cellulose acetate or polyolefins, e.g. Polyethylene or Polypropylene, and has low air permeability. Prefers it is impermeable to air.
  • Both filter core 3i and filter jacket 3a consist of the usual filter materials in the form of fibers or nonwovens, one of the two filter parts, ie filter core 3a or Filter jacket 3a, is highly effective while the other is relatively ineffective.
  • the diameter of the filter core 3i corresponds to that of the tobacco rod core.
  • the sheath 32 for the filter jacket 3a can either be inherent be air permeable or from an air impermeable Be made of material in the usual way, for example with laser beams, perforations and thereby making it permeable to air to the desired To supply filter ventilation.
  • the basic principle of this segment cigarette is that through suitable adaptation of the condensate potentials of the two Segments 1, 2 the force of the first moves is increased.
  • the first segment 1 is smoked, essentially the smoke from its area with high condensate potential sucked in, which is what is coordinated accordingly
  • the two segments 1, 2 of the tobacco rod can be the coaxial Filter 3 is another significant contribution to raising the Achieve the strength of the first moves. This happens because that depending on the difference between the flow conditions in the strand, which in turn is changing from the depend on the train resistance conditions there, and the flow conditions in the filter an ever increasing proportion of the Smoke introduced into the respective highly effective filter area until segment 1 is smoked.
  • the strand length is Ls, i.e. the length of the total, tobacco rod consisting of the two segments 1 and 2, about 60 mm; the diameter of the inner core 1i, 2i of the two Segments is about 5 mm.
  • the total diameter of the tobacco rod and the filter 3 has the usual value of about 7.9 mm.
  • Version A has the tobacco of both coats 1a, 2a a very high condensate potential, both being the same as well as different tobacco materials are used can, while according to the general explained above Adjust the tobacco materials of the two inner cores 1i, 2i have very low condensate potential. Become same tobacco materials used, so the different condensate potentials due to different tobacco densities be achieved. However, different tobaccos are preferred used.
  • the tobacco materials have the two inner cores 1i, 2i, which are either the same or different can have a very high condensate potential, while the tobacco materials of the two coats 1a, 2a, which are also the same or can be different, a low condensate potential to have.
  • the tobacco materials of the two coats 1a, 2a which are also the same or can be different, a low condensate potential to have.
  • the two tobacco rod segments 1, 2 have one clearly different ratio q of their respective train resistances Za / Zi, where Za is the tensile resistance of the tobacco jacket 1a, 2a and Zi mean the tensile resistance of the inner core 1i, 2i.
  • the tobaccos of the two inner cores have 1i and 2i the same or a very similar condensate potential that however, is much lower than the condensate potential of the two coats 1a and 2a.
  • the smoke and Taste conditions will further depend on the ratio the tensile resistance Za of a jacket to the tensile resistance Zi one Inner core turned off.
  • the ratio the tensile resistances q1 in segment 1 must be less than the ratio q2 of the tensile resistances Za / Zi in segment 2.
  • the choice of the length L1 of the first segment 1 determines the number the "reinforced" trains, i.e. the size of the effect achieved.
  • the length has L1, based on the Total length Ls of the tobacco rod with the two segments 1, 2, a value of 0.35 Ls.
  • the tensile resistance Za of the jacket 1a of the first segment 1 is, based on a total length of the tobacco rod of 63 mm, about 30 mm WS.
  • the tensile resistance Zi of the inner core 1i of the first segment 1 has, based on the total length of the tobacco rod of 63 mm, a value of about 500 mm WS.
  • the length of the second segment 2 results from that above mentioned adjustment of the length L1 of the first segment in this example 0.65 Ls.
  • the tensile resistance Za of the jacket 2a of the second segment 2 has, based on the total length of the tobacco rod with the two segments 1 and 2 of 63 mm, a value of about 150 mm WS.
  • the tensile resistance Zi of the inner core 2i of the second segment 2 is, based on the total length of the tobacco rod 63 mm, about 100 mm WS.
  • the filter effectiveness of the inner core 3i of the filter 3 has one Value of about 20%, while the filter effectiveness of the jacket 3a of the filter 3 is approximately 95%.
  • the filter ventilation caused either by the inherent Porosity of the filter casing 32 or through perforations, has a value of about 40% to 70%.
  • train resistances are dependent on the one used To specify filter ventilation of filter 3 so that the ratio sf of the sheath 3a of the coaxial filter 3 flowing smoke stream to the 3i in the filter core of the coaxial filter 3 inflowing smoke flow about the same the ratio s2 of the shell 2a of the second segment 2 flowing out after smoking the first segment 1 Smoke flow to that from the inner core 2i of the second segment 2 flowing out after smoking the first segment 1 Is smoke flow.
  • the segment is exposed to wear and tear 1 initially preferably smoke from the jacket 1a of this segment 1 sucked in, which gives a relatively strong taste impression already when smoking and the first few puffs of this cigarette arises.
  • the tensile resistance ratio q changes when smoking of segment 1 inevitably until about the tensile resistance ratio q2 of segment 2 is reached.
  • This remains constant during further smoking, as explained by Adjustment of train resistance and filter 3 causes that smoke from segment 2 preferably smoke from the inner core 2i is sucked.
  • its filter jacket 3a with version A a high filter efficiency has, while the filter effectiveness of the filter core 3i is comparatively small.
  • a growing proportion of smoke in the highly effective filter jacket 3a until segment 1 is smoked.
  • the length L1 of the first segment 1 has, based on the total length of the tobacco rod, about the same value as for the Version A.
  • the tensile resistance Za of the jacket 1a of the segment 1 is based on the total length of the tobacco rod of 63 mm, approximately 150 mm WS.
  • the tensile resistance Zi of the inner core 1i of the first segment 1 based on the total length of the tobacco rod of 63 mm, at about 70 mm WS.
  • the tensile resistance Za of the jacket 2a of the second segment 2 is, based on a total length of the tobacco rod of 63 mm, about 30 mm WS.
  • the tensile resistance Zi of the inner core 2i of the second segment 2 is based on the total length of the tobacco rod of 63 mm at about 150 mm WS.
  • the inner core 3i of the coaxial filter 3 has a filter effectiveness of about 95%, while the filter effectiveness of the jacket 3a of the coaxial filter 3 has a filter efficiency of approximately Has 20%.
  • the filter ventilation is around 40% to 70%.
  • the filter helps to increase the strength of the first moves in that a growing proportion of the smoke in the highly effective filter segment, namely in Depends on the difference between the flow conditions in the line and the flow conditions in the filter, up to segment 1 is smoked.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Fats And Perfumes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to a segmented filter cigarette comprising a tobacco rod including at least two segments of differing tobacco fillings, a wrapping for said tobacco rod, and a filter, said at least two segments of said tobacco rod having a coaxial structure, each comprising an inner core of tobacco material, a wrapping for said inner core, a jacket of a different tobacco material and a wrapping for said jacket; the tobaccos of said inner cores of said segments have the same or a very similar condensate potential; the tobaccos of said jackets of said segments have the same or a very similar condensate potential which differs, however, from the condensate potential of said inner cores; by defining the resistances to draw of said inner cores and of said jackets of said segments and by adapting said filter it is achieved that the smoke is drawn substantially from the region having a high condensate potential of the first-burning segment during smoking of the segmented filter cigarette, and the smoke is drawn substantially from the region of said segment having the lower condensate potential during smoking of the filter-end segment to achieve the same perception of taste puff-for-puff. By specially designing the coaxial filter an increasing proportion of smoke is introduced into the filter part having high filtering effectiveness during smoking of said first segment.

Description

Die Erfindung betrifft eine Segment-Filtercigarette gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a segment filter cigarette according to the Preamble of claim 1.

Ein allgemein auftretendes Problem konventioneller Cigaretten betrifft die Tatsache, daß sie beim standardmäßigen Abrauchen eine Zunahme der Kondensatmenge pro Zug mit zunehmender Abrauchlänge bzw. Zugzahl zeigen. Da leichte und ultraleichte Cigaretten entsprechend dem Werteaufdruck auf der Schachtel nur niedrige Kondensatmengen pro Gesamt-Cigarette haben dürfen, führt diese Änderung der Kondensatmenge dazu, daß diese Cigaretten beim Anrauchen und bei den ersten Zügen eine ungenügende Geschmacksfülle aufweisen und erst nach einigen Zügen den erwarteten Geschmack erreichen.A common problem with conventional cigarettes relates to the fact that they are used in standard smoking an increase in the amount of condensate per train with increasing smoke length or show number of moves. Because light and ultra light Cigarettes only according to the value printed on the box may have low amounts of condensate per total cigarette, this change in the amount of condensate causes these cigarettes insufficient when smoking and on the first few moves Have plenty of flavor and only after a few moves the expected Achieve taste.

Um dieses Problem zu lösen, ist eine segmentierte Cigarette vorgeschlagen worden, wie sie aus der EP 0 174 550 B1 bekannt ist. Der dort beschriebene Rauchartikel weist einen Tabakstrang mit zwei axialen Segmenten auf, wobei das Segment, welches nicht angezündet wird, eine mittlere Dichte hat, die mindestens 20 % größer ist als die mittlere Dichte des anzuzündenden Segmentes. Weiterhin hat das anzuzündende Segment einen Nikotingehalt, welcher höher ist als derjenige des nicht-anzuzündenden Segments, um auf diese Weise schon mit den ersten Zügen einen kräftigen Geschmackseindruck zu liefern.To solve this problem is a segmented cigarette Proposed as known from EP 0 174 550 B1 is. The smoking article described there has a tobacco rod with two axial segments, the segment which is not lit, has an average density that is at least Is 20% greater than the average density of the segment to be lit. Furthermore, the segment to be lit has a nicotine content, which is higher than that of the non-ignitable Segments in this way, even with the first moves to deliver a strong taste impression.

Nachteiligerweise tritt beim Abrauchen einer solchen Cigarette aufgrund dieser Unterschiede beim Übergang zwischen den Segmenten ein abrupter Geschmacksunterschied auf. Dies hat seinen Grund darin, daß hier stark unterschiedliche Tabake verwendet werden müssen, wie in der oben genannten europäischen Patentschrift ausdrücklich erwähnt wird.The disadvantage occurs when smoking such a cigarette because of these differences in transition between segments an abrupt difference in taste. This has its The reason for this is that there are very different tobaccos here must be, as in the above-mentioned European patent specification is explicitly mentioned.

Es ist deshalb die Aufgabe der vorliegenden Erfindung, eine Segment-Filtercigarette zur Verfügung zu stellen, welche die oben beschriebenen Nachteile des Standes der Technik überwindet. Insbesondere soll eine Segment-Filtercigarette vorgeschlagen werden, die keinen abrupten Geschmacksunterschied beim Segmentübergang aufweist und gleiche oder ähnliche Tabake in den Segmenten verwenden kann. Dabei kann die Anhebung der Kräftigkeit der ersten Züge nicht nur durch die Tabakstrangkonstruktion, sondern zusätzlich durch die Kombination mit einem speziellen Filter verstärkt werden.It is therefore the object of the present invention, a To provide segment filter cigarette which the Overcomes the disadvantages of the prior art described above. In particular, a segment filter cigarette is proposed that do not have an abrupt difference in taste Has segment transition and the same or similar tobacco in can use the segments. This can increase the vigor the first few moves not only due to the tobacco rod construction, but also by combining it with a special filter can be reinforced.

Diese Aufgabe wird durch eine Segment-Filtercigarette gelöst, wie sie durch den kennzeichnenden Teil des Patentanspruchs 1 beschrieben wird.This task is solved by a segment filter cigarette, as by the characterizing part of claim 1 is described.

Eine solche koaxiale Struktur erlaubt eine unterschiedliche Ausgestaltung der inneren und äußeren Abschnitte der Segmente bezüglich der erwünschten Geschmackswirkung. Hierbei kann durch die Auslegung der Zugwiderstände in den inneren und äußeren Abschnitten die Geschmackswirkung dahingehend vorteilhaft beeinflußt werden, daß kein durch verschiedene Tabake hervorgerufener abrupter Geschmacksunterschied beim Segmentübergang entsteht, obwohl die Innenkerne der Segmente sowie die Mäntel der Segmente gleiches oder ähnliches Kondensatpotential haben, was bedeutet, daß für die aufeinanderfolgenden Segmente gleiche oder sehr ähnliche Tabake verwendet werden können. Außerdem wird erreicht, daß die nach der Erfindung geschaffene Cigarette schon während der ersten Züge beim Anrauchen sehr gute Geschmackscharakteristika aufweist, die über den gesamten Verlauf des Abrauchens im wesentlichen beibehalten werden. Dadurch wird die gesamte, während des Rauchens entstehende Kondensatmenge gleichmäßiger auf die einzelnen Züge verteilt.Such a coaxial structure allows a different one Design of the inner and outer sections of the segments regarding the desired taste effect. Here can by the design of the train resistance in the inner and outer Sections affect the taste effect in this respect that no one is caused by different tobacco abrupt difference in taste at the segment transition arises even though the inner cores of the segments as well as the coats the segments have the same or similar condensate potential, which means that the same for the successive segments or very similar tobacco can be used. Moreover it is achieved that the cigarette created according to the invention very good taste characteristics even during the first puffs of smoke has that over the entire course of smoking are essentially maintained. This will the total amount of condensate generated during smoking distributed more evenly across the individual trains.

Beim Abrauchen des zuerst verbrennenden Segmentes folgt eine sukzessive Anpassung an die Strömungsverhältnisse im darauf folgenden Segment, wobei dieses Segment durch geeignete Spezifikation zur Anhebung der Kräftigkeit der ersten Züge beiträgt. Solange nämlich das zuerst verbrennende Segment abgeraucht wird, wird vorzugsweise der Rauch aus seinem Bereich mit hohem Kondensatpotential angesogen, wobei sich zwangsläufig das Zugwiderstandsverhältnis solange ändert, bis das darauf folgende Segment erreicht wird. In diesem Segment bleibt das Zugwiderstandsverhältnis relativ konstant, wobei zu einem wesentlich größeren Anteil als im zuerst verbrennenden Segment der Rauch aus dem Bereich mit dem niedrigeren Kondensatpotential angesogen wird.When the segment that burns first is smoked, one follows successive adaptation to the flow conditions in it following segment, this segment by appropriate specification contributes to increasing the strength of the first moves. As long as the first burning segment is smoked the smoke will preferably be out of its high area Condensate potential sucked in, which inevitably changes the tensile resistance ratio changes until the next one Segment is reached. The train resistance ratio remains in this segment relatively constant, being essential to one larger proportion than in the first burning segment of smoke sucked out of the area with the lower condensate potential becomes.

Die Länge des gesamten Tabakstrangs einer erfindungsgemäßen Cigarette kann 40 bis 100 mm sein und wird vorzugsweise 45 bis 70 mm betragen. Dabei können die Innenkerne des Tabakstrangs einen Durchmesser von 3 bis 6 mm und bevorzugt 4,5 bis 5,5 mm aufweisen. Was die Länge des zuerst verbrennenden Segmentes betrifft, so wird diese bei bevorzugten Ausführungsformen dem 0,1- bis 0,8-fachem und vorzugsweise dem 0,3- bis 0,4-fachen der Gesamtlänge des Tabakstrangs entsprechen.The length of the entire tobacco rod of an inventive Cigarette can be 40 to 100 mm and will preferably be 45 to 70 mm. The inner cores of the tobacco rod a diameter of 3 to 6 mm and preferably 4.5 to 5.5 mm exhibit. What is the length of the first burning segment relates, this is the preferred embodiment 0.1 to 0.8 times and preferably 0.3 to 0.4 times correspond to the total length of the tobacco rod.

Vorzugsweise besitzen sowohl die Innenkerne als auch die Mäntel der verschiedenen Segmente eine zusätzliche gemeinsame Umhüllung, die aus Papier oder Tabakfolie hergestellt ist. Durch diese Maßnahme kann eine ökonomische Herstellung für die längsaxiale Strangbildung gewährleistet werden. In bestimmten Fällen kann diese gemeinsame Umhüllung auch als einzige Umhüllung dienen.Both the inner cores and the shells preferably have an additional joint covering of the different segments, which is made of paper or tobacco foil. By this measure can be an economical manufacture for the longitudinal axial Strand formation can be guaranteed. In certain cases this common wrapping can also be used as a single wrapping serve.

Bevorzugt ist die erfindungsgemäße Segment-Filtercigarette dadurch gekennzeichnet, daß sie einen koaxialen, aus einem Filterkern, einer Umhüllung für den Filterkern, einem Filtermantel und einer Umhüllung für den Filtermantel bestehenden Filter aufweist, wobei Filterkern und Filtermantel aus bekannten Filtermaterialien, insbesondere aus Fasern oder Vlies aufgebaut sind. Der Durchmesser des Filterkerns kann hierbei 2,5 bis 6,5 mm und bevorzugt 3,5 bis 5,5 mm groß sein.The segment filter cigarette according to the invention is preferred characterized in that it is a coaxial, from a Filter core, an envelope for the filter core, a filter jacket and an envelope for the filter jacket existing Has filter, the filter core and filter jacket from known Filter materials, in particular made of fibers or fleece are. The diameter of the filter core can be 2.5 up to 6.5 mm and preferably 3.5 to 5.5 mm in size.

Vorteilhafterweise besteht die Umhüllung des Filterkerns aus Papier oder Tabakfolie, möglich ist auch Folienmaterial aus Zelluloseacetat oder Polyolefinen, wie insbesondere Polyäthylen oder Polypropylen, und weist eine niedrige Luftdurchlässigkeit auf oder ist bevorzugt luftundurchlässig. Hierbei kann der Filter weitere, mundseitig anschließende Filtersegmente aufweisen. Die koaxialen Filterelemente sind bei einer bevorzugten Ausgestaltung der erfindungsgemäßen Segment-Filtercigarette so ausgebildet, daß eines der beiden koaxialen Filterteile, nämlich Filterkern oder -mantel, eine hohe Filterwirksamkeit aufweist, während das jeweils andere eine niedrige Filterwirksamkeit aufweist.The envelope of the filter core advantageously consists of Paper or tobacco foil, foil material is also possible Cellulose acetate or polyolefins, such as in particular polyethylene or polypropylene, and has low air permeability on or is preferably impermeable to air. Here, the Filters have further filter segments adjoining the mouth. The coaxial filter elements are one preferred Design of the segment filter cigarette according to the invention trained that one of the two coaxial filter parts, namely Filter core or jacket, has a high filter efficiency, while the other has a low filter efficiency having.

Die obige Ausgestaltung hängt von der jeweiligen Ausbildung des Tabakstrangs ab, für die es im wesentlichen zwei Möglichkeiten gibt.The above configuration depends on the respective training of the Strands of tobacco for which there are essentially two options gives.

Die erste Ausführungsform der Segment-Filtercigarette gemäß der vorliegenden Erfindung ist dadurch gekennzeichnet, daß das Verhältnis des Zugwiderstandes des Mantels des zuerst verbrennenden Segmentes zum Zugwiderstand des Innenkerns des zuerst verbrennenden Segmentes kleiner ist als das Verhältnis des Zugwiderstandes des Mantels des filterseitigen Segments zum Zugwiderstand des Innenkerns des filterseitigen Segments, wobei die Tabake beider Mäntel ein hohes Kondensatpotential aufweisen.The first embodiment of the segment filter cigarette according to the The present invention is characterized in that the ratio the tensile resistance of the jacket of the first to burn Segment to the tensile resistance of the inner core of the first burning Segment is smaller than the ratio of the tensile resistance of the jacket of the filter-side segment to the draw resistance the inner core of the filter-side segment, where the tobacco of both coats has a high condensate potential.

Durch diese Ausgestaltung wird sichergestellt, daß beim Anzünden der Cigarette und bei den ersten Zügen vorzugsweise der Rauch aus dem Mantel des zuerst verbrennenden Segments angesogen wird. Hierdurch wird eine hohe Geschmackswirkung bei diesen ersten Zügen zur Verfügung gestellt. Beim Abrauchen des mund-bzw. filterseitigen Segmentes wird vorzugsweise der Rauch aus dessen Innenkern, also dem Bereich mit niedrigem Kondensatpotential, angesogen, so daß die Geschmackswirkung von den beiden Segmenten im wesentlichen bei der gleichen Stärke verbleibt.This configuration ensures that when lighting the cigarette and preferably the first few puffs Smoke sucked in from the mantle of the first burning segment becomes. This creates a high taste effect in these first trains made available. When smoking the mouth or. the filter-side segment is preferably the smoke its inner core, i.e. the area with low condensate potential, sucked in, so that the taste effect of the two Segments remain essentially the same strength.

Die oben beschriebene erste Ausgestaltungsmöglichkeit der erfindungsgemäßen Segment-Filtercigarette wird im weiteren als Version A bezeichnet werden. Bei einer bevorzugten Ausführungsform der Cigarette nach der Version A beträgt der Zugwiderstand des Mantels des zuerst verbrennenden Segments, bezogen auf 63 mm Tabakstranglänge 20 bis 40 mm WS, vorzugsweise 25 bis 35 mm WS, während der Zugwiderstand des Innenkerns 300 bis 600 mm WS und vorzugsweise etwa 450 bis 550 mm WS beträgt. Die Version A kann weiterhin dadurch gekennzeichnet sein, daß der Zugwiderstand des Mantels des filterseitigen Segments, bezogen auf 63 mm Tabakstranglänge, 100 bis 300 mm WS, vorzugsweise etwa 130 bis 170 mm WS beträgt, während der Zugwiderstand des Innenkerns dieses Segments 50 bis 150 mm WS und vorzugsweise etwa 75 bis 125 mm WS beträgt.The above-described first embodiment of the invention Segment filter cigarette is referred to as Version A can be called. In a preferred embodiment the version A cigarette has a draw resistance of the jacket of the first burning segment, based on 63 mm tobacco rod length 20 to 40 mm WS, preferably 25 to 35 mm WS, while the tensile resistance of the inner core is 300 to 600 mm WS and preferably about 450 to 550 mm WS. The Version A can also be characterized in that the Draw resistance of the jacket of the filter-side segment, related on 63 mm tobacco rod length, 100 to 300 mm WS, preferably is about 130 to 170 mm WS, while the tensile resistance of the Inner core of this segment 50 to 150 mm WS and preferably is about 75 to 125 mm WS.

Ein dieser Version A zugeordneter koaxialer Filter weist vorteilhafterweise eine Filterwirksamkeit des Filterkerns von 10 bis 60 %, vorzugsweise 10 bis 30 % auf, während die Filterwirksamkeit des Filtermantels 70 bis 100 %, vorzugsweise 90 bis 100 % beträgt und der Filter einen Ventilationsgrad von 0 bis 80 % hat.A coaxial filter assigned to this version A advantageously has a filter efficiency of the filter core of 10 to 60%, preferably 10 to 30%, while filtering effectiveness of the filter jacket 70 to 100%, preferably 90 to Is 100% and the filter has a degree of ventilation from 0 to Has 80%.

Bei einer Segment-Filtercigarette gemäß der vorliegenden Erfindung ist es möglich, die Zugwiderstände der Filterelemente in Abhängigkeit von der verwendeten Filterventilation so einzustellen, daß das Verhältnis der in die Peripherie des koaxialen Filters einströmenden Rauchmenge zur in den Kernbereich des koaxialen Filters einströmenden Rauchmenge im wesentlichen gleich dem Verhältnis der aus dem Tabakmantel herausströmenden Rauchmenge zur aus dem Tabakkern herausströmenden Rauchmenge, ist, und zwar jeweils nach dem Abrauchen des zuerst verbrennenden Tabakstrangsegments.In a segment filter cigarette according to the present invention it is possible to change the tensile resistances of the filter elements in Depending on the filter ventilation used, that the ratio of the to the periphery of the coaxial The amount of smoke flowing into the core of the filter coaxial filter inflowing amount of smoke essentially equal to the ratio of those flowing out of the tobacco jacket Amount of smoke to the amount of smoke flowing out of the tobacco core, after the first one is burned Tobacco rod segments.

Somit kann bei geeigneter Spezifikation und in spezieller Abstimmung zum Tabakstrang der koaxiale Filter einen weiteren deutlichen Betrag zu Anhebung der Kräftigkeit der ersten Züge bringen. Dies geschieht dadurch, daß in Abhängigkeit von der Differenz zwischen den Strömungsverhältnissen im Strang, welche wiederum von den sich ändernden dortigen Zugwiderstandsverhältnissen abhängen, und den Strömungsverhältnissen im Filter ein sich ändernder Anteil des Rauches in den hochwirksame Filtermantel geführt wird.Thus, with a suitable specification and in special coordination to the tobacco rod the coaxial filter another significant amount to increase the strength of the first moves bring. This happens because, depending on the Difference between the flow conditions in the line, which again from the changing tension resistance conditions there depend, and the flow conditions in the filter changing proportion of smoke in the highly effective filter jacket to be led.

Im folgenden wird eine zweite Möglichkeit, die erfindungsgemäße Segment-Filtercigarette bezüglich des Tabakstrangs und des Filters auszubilden, beschrieben werden. Diese Version wird als Version B bezeichnet.The following is a second possibility, the inventive one Segment filter cigarette regarding the tobacco rod and the Form filters are described. This version is called Version B designated.

Die Segment-Filtercigarette gemäß der Version B der vorliegenden Erfindung ist dadurch gekennzeichnet, daß das Verhältnis des Zugwiderstandes des Mantels des zuerst verbrennenden Segmentes zum Zugwiderstand des Innenkerns des zuerst verbrennenden Segments größer ist als das Verhältnis des Zugwiderstandes des Mantels des filterseitigen Segments zum Zugwiderstand des Innenkerns des filterseitigen Segments, wobei die Tabake der Innenkerne ein hohes und die Tabake des Mantels ein niedriges Kondensatpotential aufweisen.The segment filter cigarette according to version B of the present Invention is characterized in that the ratio the tensile resistance of the jacket of the first burning segment the tensile resistance of the inner core of the one that burns first Segment is greater than the ratio of the train resistance of the jacket of the filter-side segment to the tensile resistance of the Inner core of the filter-side segment, the tobacco of The inner cores are high and the tobacco of the coat is low Have condensate potential.

Bei dieser Version B wird durch die Einstellung der Zugwiderstände zunächst vorzugsweise der Rauch aus dem Innenkern des zuerst verbrennenden Segmentes angesogen, wobei ein starker Geschmackseindruck beim Anrauchen und bei den ersten Zügen entsteht. Beim Abrauchen des zuerst verbrennenden Segmentes erfolgt eine sukzessive Anpassung an die Strömungsverhältnisse im filterseitigen Segment, in dem - wiederum durch die Einstellung der Zugwiderstände - vorzugsweise der Rauch aus dem Mantel mit dem geringeren Kondensatpotential angesogen wird. Hierdurch entsteht ebenfalls eine Cigarette, deren Geschmackseindruck bei den ersten Zügen genügend stark ist und die keine abrupte Geschmacksänderung beim Segmentübergang aufweist, d.h. auch hierbei wird die zur Verfügung stehende Kondensatmenge gleichmäßig auf jeden Zug verteilt.With this version B you can adjust the train resistance first preferably the smoke from the inner core of the sucked first burning segment, leaving a strong taste impression when smoking and the first few moves. When the first burning segment is smoked a gradual adaptation to the flow conditions in the filter-side segment in which - again through the setting the train resistance - preferably the smoke from the coat with the lower condensate potential. Hereby also creates a cigarette, the taste impression of the first few moves is strong enough and there is no abrupt change in taste at the segment transition, i.e. also here the amount of condensate available becomes even distributed on every train.

Bei einer bevorzugten Ausführungsform der Segment-Filtercigarette nach der Version B beträgt der Zugwiderstand des Mantels des zuerst verbrennenden Segments, bezogen auf 63 mm Tabakstranglänge, 100 bis 300 mm WS und vorzugsweise etwa 125 bis 175 mm WS, während der Zugwiderstand des Innenkerns 50 bis 100 mm WS und vorzugsweise etwa 60 bis 80 mm WS beträgt.In a preferred embodiment, the segment filter cigarette according to version B, the tensile resistance of the jacket is the first burning segment, based on 63 mm tobacco rod length, 100 to 300 mm WS and preferably about 125 to 175 mm WS, while the tensile resistance of the inner core is 50 to 100 mm WS and preferably about 60 to 80 mm WS.

Hierbei ist die Version B der erfindungsgemäßen Segment-Filtercigarette dadurch gekennzeichnet sein, daß der Zugwiderstand des Mantels des filterseitigen Segments, bezogen auf 63 mm Tabakstranglänge, 25 bis 100 mm WS und vorzugsweise 30 mm WS beträgt, während der Zugwiderstand des Innenkerns dieses Segments 125 bis 300 mm WS und vorzugsweise 150 mm WS beträgt.Version B is the segment filter cigarette according to the invention characterized in that the train resistance of the jacket of the filter-side segment, based on 63 mm Tobacco rod length, 25 to 100 mm WS and preferably 30 mm WS while the tensile resistance of the inner core of this segment 125 to 300 mm WS and preferably 150 mm WS.

Der dieser Version B zugeordnete koaxiale Filter ist so ausgestaltet, daß die Filterwirksamkeit des Filterkerns 70 bis 100%, vorzugsweise 90 bis 100 % beträgt, während die Filterwirksamkeit des Filtermantels 10 bis 60 %, vorzugsweise 10 bis 30 % beträgt und der Filter einen Ventilationsgrad von 0 bis 80 % hat.The coaxial filter assigned to this version B is designed in such a way that the filter effectiveness of the filter core is 70 to 100%, preferably 90 to 100%, while the filter efficiency of the filter jacket 10 to 60%, preferably 10 to 30% and the filter has a degree of ventilation of 0 to 80% Has.

Beide oben beschriebenen Versionen der erfindungsgemäßen Segment-Filtercigarette weisen auch bei Leicht- und Ultraleichtcigaretten den Vorteil auf, daß schon beim Anrauchen und bei den ersten Zügen ein relativ starker, sich beim Abrauchen nur im geringen Maß verändernder Geschmackseindruck entsteht.Both versions of the segment filter cigarette according to the invention described above also show on light and ultralight cigarettes the advantage that already when smoking and when the first few moves a relatively strong one, only when smoking the taste impression changes to a small extent.

Die Erfindung wird nunmehr anhand der einzigen beiliegenden Figur näher erläutert werden, die einen Schnitt durch eine erfindungsgemäße Segment-Cigarette zeigt.The invention will now be described with reference to the only enclosed Figure will be explained in more detail, which is a section through a Segment cigarette according to the invention shows.

Die hier dargestellte Ausführungsform der erfindungsgemäßen Segment-Filtercigarette weist ein anzuzündendes und zuerst verbrennendes koaxiales Segment 1 und ein mund- bzw. filterseitiges koaxiales Segment 2 auf, die zusammen den Tabakstrang bilden. Am filterseitigen Segment 2 ist ein koaxialer Filter 3 an den Tabakstrang angesetzt, nach Stand der Technik im allgemeinen durch ein in der Figur nicht dargestelltes Belagpapier. The embodiment of the invention shown here Segment filter cigarette has one to be lit and first burning coaxial segment 1 and a mouth or filter side coaxial segment 2, which together the tobacco rod form. A coaxial filter 3 is located on the filter-side segment 2 attached to the tobacco rod, according to the prior art in general by a covering paper, not shown in the figure.

Das zuerst verbrennende Segment 1 weist die folgenden Bestandteile auf: Einen Innenkern 1i aus einem Tabakmaterial, eine Umhüllung 11 für den Innenkern 1i, einen den Innenkern umgebenden Mantel 1a und eine Umhüllung 12 für den Mantel 1a. Das an das erste Segment 1 anschließende zweite Segment 2 hat die folgenden Bestandteile: Einen Innenkern 2i aus Tabakmaterial, eine Umhüllung 21 für den Innenkern 2i, einen Mantel 2a, der den Innenkern 2i und dessen Umhüllung 21 umgibt, und eine Umhüllung 22 für den Mantel.The first burning segment 1 has the following components on: an inner core 1i made of a tobacco material, a Envelope 11 for the inner core 1i, a surrounding the inner core Sheath 1a and an envelope 12 for the sheath 1a. That on the second segment 2 adjoining the first segment 1 has the the following components: an inner core 2i made of tobacco material, an envelope 21 for the inner core 2i, a jacket 2a, the surrounds the inner core 2i and its casing 21, and a casing 22 for the coat.

Die Umhüllungen 11 und 21 für die Innenkerne 1i und 2i sind hierbei aus Papier oder Tabak-Folie hergestellt und weisen eine niedrige Luftdurchlässigkeit auf. Sie können ebenfalls völlig luftundurchlässig sein.The envelopes 11 and 21 for the inner cores 1i and 2i are here made of paper or tobacco foil and have a low air permeability. You can also completely be impermeable to air.

Auch die äußeren Umhüllungen 12, 22 der Mäntel 1a und 2a sind aus Cigarettenpapier oder Tabakfolie ausgebildet und bevorzugt hoch luftdurchlässig.The outer coverings 12, 22 of the shells 1a and 2a are also formed from cigarette paper or tobacco foil and preferred highly breathable.

Um die längsaxiale Strangbildung zu vereinfachen und dadurch die Herstellung wirtschaftlicher zu gestalten, können sowohl die Innenkerne 1i, 2i als auch die Tabakmäntel 1a, 2a der beiden Segmente 1, 2 zusätzlich eine gemeinsame äußere Umhüllung haben; in der Figur ist diese gemeinsame äußere Umhüllung für die beiden Innenkerne 1i, 2i durch das Bezugszeichen 25 und die gemeinsame äußere Umhüllung für die beiden Mäntel 1a, 2a durch das Bezugszeichen 35 angedeutet.To simplify the longitudinal axial strand formation and thereby To make the production more economical, both the inner cores 1i, 2i as well as the tobacco coats 1a, 2a of the two Segments 1, 2 additionally have a common outer covering to have; in the figure, this common outer wrapper is for the two inner cores 1i, 2i by reference numeral 25 and common outer casing for the two coats 1a, 2a through the reference numeral 35 indicated.

Die Tabake der beiden Innenkerne 1i, 2i haben das gleiche oder ein sehr ähnliches Kondensatpotential; auch die Tabake der beiden Mäntel 1a, 2a haben das gleiche oder ein sehr ähnliches Kondensatpotential, wobei jedoch die Kondensatpotentiale von den Innenkernen 1i, 2i und Mänteln 1a, 2a sehr unterschiedlich sind, d.h., das eine Kondensatpotential ist sehr niedrig und das andere relativ hoch. The tobaccos of the two inner cores 1i, 2i have the same or a very similar condensate potential; also the tobacco of the both coats 1a, 2a have the same or a very similar one Condensate potential, but the condensate potential of the inner cores 1i, 2i and shells 1a, 2a very different are, i.e. the condensate potential is very low and the other relatively high.

An das Segment 2 schließt sich ein koaxialer Filter 3 mit einem Filterkern 3i, einer Umhüllung 31 für den Filterkern 3i, einem Filtermantel 3a und einer Umhüllung 32 für den Filtermantel 3a an. Die Verbindung zwischen Tabakstrang und Filter 3 erfolgt mit den üblichen Mitteln, z. B. einem Belagpapier.A segment 3 is connected to the segment 2 by a coaxial filter Filter core 3i, an envelope 31 for the filter core 3i, one Filter casing 3a and an envelope 32 for the filter casing 3a on. The connection between tobacco rod and filter 3 is made with the usual means, e.g. B. a covering paper.

Die Umhüllung 31 besteht aus Papier oder eine Folie, z.B. aus Zelluloseacetat oder Polyolefinen, wie z.B. Polyäthylen oder Polypropylen, und hat eine geringe Luftdurchlässigkeit. Bevorzugt ist sie luftundurchlässig.The wrapper 31 is made of paper or a film, e.g. out Cellulose acetate or polyolefins, e.g. Polyethylene or Polypropylene, and has low air permeability. Prefers it is impermeable to air.

Sowohl Filterkern 3i als auch Filtermantel 3a bestehen aus den üblichen Filtermaterialien in Form von Fasern oder Vliesen, wobei einer der beiden Filterteile, also Filterkern 3a oder Filtermantel 3a, hochwirksam ist, während der jeweils andere relativ gering wirksam ist.Both filter core 3i and filter jacket 3a consist of the usual filter materials in the form of fibers or nonwovens, one of the two filter parts, ie filter core 3a or Filter jacket 3a, is highly effective while the other is relatively ineffective.

Der Durchmesser des Filterkerns 3i entspricht der des Tabakstrangkerns.The diameter of the filter core 3i corresponds to that of the tobacco rod core.

Die Umhüllung 32 für den Filtermantel 3a kann entweder inhärent luftdurchlässig sein oder aber aus einem luftundurchlässigen Material hergestellt sein, das in der üblichen Weise, beispielsweise durch Laserstrahlen, mit Perforationen versehen und dadurch gezielt luftdurchlässig gemacht wird, um die gewünschte Filterventilation zu liefern.The sheath 32 for the filter jacket 3a can either be inherent be air permeable or from an air impermeable Be made of material in the usual way, for example with laser beams, perforations and thereby making it permeable to air to the desired To supply filter ventilation.

Das Grundprinzip dieser Segment-Cigarette liegt darin, daß durch geeignete Anpassung der Kondensatpotentiale der beiden Segmente 1, 2 die Kräftigkeit der ersten Züge angehoben wird. Dabei wird, solange das erste Segment 1 abgeraucht wird, im wesentlichen der Rauch aus seinem Bereich mit hohem Kondensat-potential angesogen, wodurch sich das entsprechend abgestimmte Zugwiderstandsverhältnis zwischen den Zugwiderständen des Innenkerns und des Mantels solange ändert, bis der entsprechende Wert des Segmentes 2 erreicht ist. Von diesem Zeitpunkt an bleibt das Zugwiderstandsverhältnis der Segment-Cigarette nahezu konstant. Im Segment 2 wird der Rauch zu einem wesentlichen Anteil aus dem Bereich mit dem niedrigen Kondensatpotential angesogen.The basic principle of this segment cigarette is that through suitable adaptation of the condensate potentials of the two Segments 1, 2 the force of the first moves is increased. Here, as long as the first segment 1 is smoked, essentially the smoke from its area with high condensate potential sucked in, which is what is coordinated accordingly Tensile resistance ratio between the tensile resistances of the inner core and changes the coat until the corresponding one Value of segment 2 is reached. From now on the draw resistance ratio of the segment cigarette remains almost constant. In segment 2, smoke becomes essential Share from the area with the low condensate potential sucked.

Bei geeigneter Spezifikation und in spezieller Abstimmung zu den beiden Segmenten 1, 2 des Tabakstrangs kann der koaxiale Filter 3 einen weiteren deutlichen Beitrag zur Anhebung der Kräftigkeit der ersten Züge leisten. Dies geschieht dadurch, daß in Abhängigkeit von der Differenz zwischen den Strömungsverhältnissen im Strang, die wiederum von den sich ändernden dortigen Zugwiderstandsverhältnissen abhängen, und den Strömungsverhältnissen im Filter ein ständig wachsender Anteil des Rauches in den jeweiligen hochwirksamen Filterbereich eingeführt wird, bis das Segment 1 abgeraucht ist.With a suitable specification and in special coordination The two segments 1, 2 of the tobacco rod can be the coaxial Filter 3 is another significant contribution to raising the Achieve the strength of the first moves. This happens because that depending on the difference between the flow conditions in the strand, which in turn is changing from the depend on the train resistance conditions there, and the flow conditions in the filter an ever increasing proportion of the Smoke introduced into the respective highly effective filter area until segment 1 is smoked.

Im folgenden werden die zwei prinzipiellen Versionen A und B der erfindungsgemäßen Segment-Cigarette erläutert; bei beiden Versionen beträgt die Stranglänge Ls, also die Länge des gesamten, aus den beiden Segmenten 1 und 2 bestehenden Tabakstrangs, etwa 60 mm; der Durchmesser des Innenkerns 1i, 2i der beiden Segmente beträgt etwa 5 mm.In the following the two basic versions A and B the segment cigarette according to the invention explained; by both Versions, the strand length is Ls, i.e. the length of the total, tobacco rod consisting of the two segments 1 and 2, about 60 mm; the diameter of the inner core 1i, 2i of the two Segments is about 5 mm.

Der Gesamtdurchmesser des Tabakstrangs und des Filters 3 hat den üblichen Wert von etwa 7,9 mm.The total diameter of the tobacco rod and the filter 3 has the usual value of about 7.9 mm.

Die beiden Versionen A und B unterscheiden sich im wesentlichen durch die räumliche Anordnung des Tabaks mit hohem Kondensatpotential: Bei der Version A haben die Tabake der beiden Mäntel 1a, 2a ein sehr hohes Kondensatpotential, wobei sowohl gleiche als auch unterschiedliche Tabakmaterialien verwendet werden können, während entsprechend der oben erläuterten allgemeinen Regel die Tabakmaterialien der beiden Innenkerne 1i, 2i ein sehr niedriges Kondensatpotential haben. Werden gleiche Tabakmaterialien verwendet, so können die unterschiedlichen Kondensatpotentiale durch jeweils unterschiedliche Tabak-Dichten erzielt werden. Bevorzugt werden jedoch unterschiedliche Tabake eingesetzt. The two versions A and B differ essentially due to the spatial arrangement of the tobacco with high condensate potential: Version A has the tobacco of both coats 1a, 2a a very high condensate potential, both being the same as well as different tobacco materials are used can, while according to the general explained above Adjust the tobacco materials of the two inner cores 1i, 2i have very low condensate potential. Become same tobacco materials used, so the different condensate potentials due to different tobacco densities be achieved. However, different tobaccos are preferred used.

Bei der Version B haben die Tabakmaterialien der beiden Innenkerne 1i, 2i, die entweder gleich oder unterschiedlich sein können, ein sehr hohes Kondensatpotential, während die Tabakmaterialien der beiden Mäntel 1a, 2a, die ebenfalls gleich oder unterschiedlich sein können, ein niedriges Kondensatpotential haben. Auch hier gilt das oben Gesagte bezüglich der Verwendung gleicher oder unterschiedlicher Tabake.In version B, the tobacco materials have the two inner cores 1i, 2i, which are either the same or different can have a very high condensate potential, while the tobacco materials of the two coats 1a, 2a, which are also the same or can be different, a low condensate potential to have. Here, too, what has been said above with regard to use applies same or different tobacco.

Gleichzeitig haben die beiden Tabakstrang-Segmente 1, 2 ein deutlich unterschiedliches Verhältnis q ihrer jeweiligen Zugwiderstände Za/Zi, wobei Za den Zugwiderstand des Tabakmantels 1a, 2a und Zi den Zugwiderstand des Innenkerns 1i, 2i bedeuten.At the same time, the two tobacco rod segments 1, 2 have one clearly different ratio q of their respective train resistances Za / Zi, where Za is the tensile resistance of the tobacco jacket 1a, 2a and Zi mean the tensile resistance of the inner core 1i, 2i.

Das Zugwiderstandsverhältnis q für die beiden Bereich 1i, 1a des ersten Segmentes 1 wird mit q1 und das der beiden Bereiche des zweiten Segmentes 2 mit q2 bezeichnet.The tensile resistance ratio q for the two areas 1i, 1a of the first segment 1 with q1 and that of the two areas of the second segment 2 with q2.

Im weiteren werden nun anhand der Figur die beiden Versionen A und B einer erfindungsgemäßen Segment-Filtercigarette detailliert erläutert.In addition, the two versions A and B of a segment filter cigarette according to the invention in detail explained.

Version AVersion A

Bei der Version A haben die Tabake der beiden Innenkerne 1i und 2i das gleiche oder ein sehr ähnliches Kondensatpotential, das allerdings sehr viel niedriger ist als das Kondensatpotential der beiden Mäntel 1a und 2a. Für die Einstellung der Abrauch-und Geschmacksbedingungen wird im weiteren auf das Verhältnis des Zugwiderstandes Za eines Mantels zum Zugwiderstand Zi eines Innenkerns abgestellt. Für die Version A mit einem Tabak mit hohem Kondensationspotential im Tabakmantel gilt, daß das Verhältnis der Zugwiderstände q1 im Segment 1 kleiner sein muß als das Verhältnis q2 der Zugwiderstände Za/Zi im Segment 2. In version A, the tobaccos of the two inner cores have 1i and 2i the same or a very similar condensate potential that however, is much lower than the condensate potential of the two coats 1a and 2a. For setting the smoke and Taste conditions will further depend on the ratio the tensile resistance Za of a jacket to the tensile resistance Zi one Inner core turned off. For version A with a tobacco high condensation potential in the tobacco jacket applies that the ratio the tensile resistances q1 in segment 1 must be less than the ratio q2 of the tensile resistances Za / Zi in segment 2.

Die Wahl der Länge L1 des ersten Segmentes 1 bestimmt die Anzahl der "verstärkten" Züge, d.h. die Größe des erzielten Effektes. Bei diesem Beispiel hat die Länge L1, bezogen auf die Gesamtlänge Ls des Tabakstrangs mit den beiden Segmenten 1, 2, einen Wert von 0,35 Ls.The choice of the length L1 of the first segment 1 determines the number the "reinforced" trains, i.e. the size of the effect achieved. In this example, the length has L1, based on the Total length Ls of the tobacco rod with the two segments 1, 2, a value of 0.35 Ls.

Der Zugwiderstand Za des Mantels 1a des ersten Segmentes 1 beträgt, bezogen auf eine Gesamtlänge des Tabakstrangs von 63 mm, etwa 30 mm WS.The tensile resistance Za of the jacket 1a of the first segment 1 is, based on a total length of the tobacco rod of 63 mm, about 30 mm WS.

Der Zugwiderstand Zi des Innenkerns 1i des ersten Segmentes 1 hat, bezogen auf die Gesamtlänge des Tabakstrangs von 63 mm, einen Wert von etwa 500 mm WS.The tensile resistance Zi of the inner core 1i of the first segment 1 has, based on the total length of the tobacco rod of 63 mm, a value of about 500 mm WS.

Die Länge des zweiten Segmentes 2 ergibt sich nach der oben erwähnten Anpassung der Länge L1 des ersten Segmentes, beträgt also bei diesem Beispiel 0,65 Ls.The length of the second segment 2 results from that above mentioned adjustment of the length L1 of the first segment in this example 0.65 Ls.

Der Zugwiderstand Za des Mantels 2a des zweiten Segmentes 2 hat, bezogen auf die Gesamtlänge des Tabakstrangs mit den beiden Segmenten 1 und 2 von 63 mm, einen Wert von etwa 150 mm WS.The tensile resistance Za of the jacket 2a of the second segment 2 has, based on the total length of the tobacco rod with the two segments 1 and 2 of 63 mm, a value of about 150 mm WS.

Der Zugwiderstand Zi des Innenkerns 2i des zweiten Segmentes 2 beträgt, bezogen auf die Gesamtlänge des Tabakstrangs von 63 mm, etwa 100 mm WS.The tensile resistance Zi of the inner core 2i of the second segment 2 is, based on the total length of the tobacco rod 63 mm, about 100 mm WS.

Die Filterwirksamkeit des Innenkerns 3i des Filters 3 hat einen Wert von etwa 20 %, während die Filterwirksamkeit des Mantels 3a des Filters 3 bei etwa 95 % liegt.The filter effectiveness of the inner core 3i of the filter 3 has one Value of about 20%, while the filter effectiveness of the jacket 3a of the filter 3 is approximately 95%.

Die Filterventilation, hervorgerufen entweder durch die inhärente Porosität der Filterumhüllung 32 oder durch Perforationen, hat einen Wert von etwa 40 % bis 70 %.The filter ventilation, caused either by the inherent Porosity of the filter casing 32 or through perforations, has a value of about 40% to 70%.

Außerdem sind die Zugwiderstände in Abhängigkeit von der verwendeten Filterventilation des Filters 3 so zu spezifizieren, daß das Verhältnis sf des in den Mantel 3a des koaxialen Filters 3 einströmenden Rauchstroms zu dem in den Filterkern 3i des koaxialen Filters 3 einströmenden Rauchstrom etwa gleich dem Verhältnis s2 des aus dem Mantel 2a des zweiten Segmentes 2 nach dem Abrauchen des ersten Segmentes 1 herausströmenden Rauchstroms zu dem aus dem Innenkern 2i des zweiten Segmentes 2 nach dem Abrauchen des ersten Segmentes 1 herausströmenden Rauchstroms ist.In addition, the train resistances are dependent on the one used To specify filter ventilation of filter 3 so that the ratio sf of the sheath 3a of the coaxial filter 3 flowing smoke stream to the 3i in the filter core of the coaxial filter 3 inflowing smoke flow about the same the ratio s2 of the shell 2a of the second segment 2 flowing out after smoking the first segment 1 Smoke flow to that from the inner core 2i of the second segment 2 flowing out after smoking the first segment 1 Is smoke flow.

Durch diese Maßnahmen wird beim An- und Abrauchen des Segments 1 zunächst vorzugsweise Rauch aus dem Mantel 1a dieses Segments 1 angesogen, wodurch ein relativ starker Geschmackseindruck schon beim Anrauchen und bei den ersten Zügen dieser Cigarette entsteht. Das Zugwiderstandsverhältnis q ändert sich beim Abrauchen des Segments 1 zwangsläufig solange, bis etwa das Zugwiderstandsverhältnis q2 des Segmentes 2 erreicht wird. Dies bleibt beim weiteren Abrauchen konstant, da durch die erläuterte Anpassung von Zugwiderständen und Filter 3 bewirkt wird, daß beim Abrauchen des Segments 2 vorzugsweise Rauch aus dem Innenkern 2i angesogen wird. Zur obigen Einstellung der Geschmackswirkung trägt ebenfalls der koaxiale Filter 3 bei, dessen Filtermantel 3a bei der Version A eine hohe Filterwirksamkeit aufweist, während die Filterwirksamkeit des Filterkerns 3i vergleichsweise gering ist. Hierbei wird in Abhängigkeit von der Differenz zwischen den Strömungsverhältnissen im Strang und den Strömungsverhältnissen im Filter 3 ein wachsender Anteil des Rauches in den hochwirksamen Filtermantel 3a geführt, bis das Segment 1 abgeraucht ist.Through these measures, the segment is exposed to wear and tear 1 initially preferably smoke from the jacket 1a of this segment 1 sucked in, which gives a relatively strong taste impression already when smoking and the first few puffs of this cigarette arises. The tensile resistance ratio q changes when smoking of segment 1 inevitably until about the tensile resistance ratio q2 of segment 2 is reached. This remains constant during further smoking, as explained by Adjustment of train resistance and filter 3 causes that smoke from segment 2 preferably smoke from the inner core 2i is sucked. For setting the taste effect above also contributes the coaxial filter 3, its filter jacket 3a with version A a high filter efficiency has, while the filter effectiveness of the filter core 3i is comparatively small. Here, depending on the difference between the flow conditions in the line and the flow conditions in the filter 3 a growing proportion of smoke in the highly effective filter jacket 3a, until segment 1 is smoked.

Version BVersion B

Für das Zugwiderstandsverhältnis q2 bei der Version B der erfindungsgemäßen Segment-Filtercigarette gilt, daß das Zugwiderstandsverhältnis q1 des Segments 1 größer sein muß als das Zugwiderstandsverhältnis q2 des Segmentes 2. For the tensile resistance ratio q2 in version B of the invention Segment filter cigarette holds that the draw resistance ratio q1 of segment 1 must be larger than that Tensile resistance ratio q2 of segment 2.

Die Länge L1 des ersten Segmentes 1 hat, bezogen auf die Gesamtlänge des Tabakstrangs, etwa den gleichen Wert wie bei der Version A.The length L1 of the first segment 1 has, based on the total length of the tobacco rod, about the same value as for the Version A.

Der Zugwiderstand Za des Mantels 1a des Segmentes 1 beträgt, bezogen auf die Gesamtlänge des Tabakstrangs von 63 mm, etwa 150 mm WS.The tensile resistance Za of the jacket 1a of the segment 1 is based on the total length of the tobacco rod of 63 mm, approximately 150 mm WS.

Der Zugwiderstand Zi des Innenkerns 1i des ersten Segmentes 1 liegt, bezogen auf die Gesamtlänge des Tabakstrangs von 63 mm, bei etwa 70 mm WS.The tensile resistance Zi of the inner core 1i of the first segment 1 based on the total length of the tobacco rod of 63 mm, at about 70 mm WS.

Der Zugwiderstand Za des Mantels 2a des zweiten Segmentes 2 beträgt, bezogen auf eine Gesamtlänge des Tabakstrangs von 63 mm, etwa 30 mm WS.The tensile resistance Za of the jacket 2a of the second segment 2 is, based on a total length of the tobacco rod of 63 mm, about 30 mm WS.

Der Zugwiderstand Zi des Innenkerns 2i des zweiten Segmentes 2 liegt, bezogen auf die Gesamtlänge des Tabakstrangs von 63 mm bei etwa 150 mm WS.The tensile resistance Zi of the inner core 2i of the second segment 2 is based on the total length of the tobacco rod of 63 mm at about 150 mm WS.

Der Innenkern 3i des koaxialen Filters 3 hat eine Filterwirksamkeit von etwa 95 %, während die Filterwirksamkeit des Mantels 3a des koaxialen Filters 3 eine Filterwirksamkeit von etwa 20 % hat.The inner core 3i of the coaxial filter 3 has a filter effectiveness of about 95%, while the filter effectiveness of the jacket 3a of the coaxial filter 3 has a filter efficiency of approximately Has 20%.

Die Filterventilation liegt bei etwa 40 % bis 70 %.The filter ventilation is around 40% to 70%.

Durch diese Maßnahmen wird bewirkt, daß beim Abrauchen des Segments 1 zunächst vorzugsweise der Rauch aus dem Innenkern 1i mit dem hohen Kondensatpotential des Segmentes 1 angesogen wird, wodurch ein relativ starker Geschmackseindruck bei den ersten Zügen entsteht. Im Verlaufe des Abrauchens des Segments 1 ändert sich wiederum das Zugwiderstandsverhältnis q solange bis das des Segmentes 2 erreicht wird, dessen Zugwiderstandsverhältnis q2 konstant bleibt. Im Falle der Version B bewirkt diese Einstellung des Zugwiderstandsverhältnisses im Segment 2 nunmehr, daß vorzugsweise Rauch aus dem Mantel 2a dieses Segments 2 angesogen wird, wodurch ein im wesentlichen gleich starker Geschmackseindruck über die gesamte Länge der Cigarette entsteht.These measures have the effect that when the Segment 1 first preferably the smoke from the inner core 1i sucked in with the high condensate potential of segment 1 is, which gives a relatively strong taste impression in the first moves. In the course of the segment's smoking 1 again changes the tensile resistance ratio q as long until that of segment 2 is reached, its tensile resistance ratio q2 remains constant. In the case of the B version this setting of the tension resistance ratio in segment 2 now that preferably smoke from the mantle 2a of this segment 2 is drawn, creating a substantially the same strong taste impression over the entire length of the cigarette arises.

Auch hier trägt der Filter zur Anhebung der Kräftigkeit der ersten Züge dadurch bei, daß ein wachsender Anteil des Rauches in das hochwirksame Filtersegment geführt wird, und zwar in Abhängigkeit von der Differenz zwischen den Strömungsverhältnissen im Strang und den Strömungsverhältnissen im Filter, bis das Segment 1 abgeraucht ist.Here, too, the filter helps to increase the strength of the first moves in that a growing proportion of the smoke in the highly effective filter segment, namely in Depends on the difference between the flow conditions in the line and the flow conditions in the filter, up to segment 1 is smoked.

Claims (19)

  1. A segmented filter cigarette comprising:
    a) a tobacco rod including at least two segments (1, 2) of differing tobacco fillings;
    b) a wrapping for said tobacco rod; and
    c) a filter (3),
    characterised by the following features:
    d) said at least two segments (1, 2) of said tobacco rod have a co-axial structure, each comprising:
    d1) an inner core (1i, 2i) of tobacco material;
    d2) a wrapping (11, 21) for said inner core (1i, 2i), which preferably has a low permeability to air;
    d3) a jacket (1a, 2a) of a tobacco material; and
    d4) a wrapping (12, 22) for said jacket (1a, 2a), which is highly permeable to air;
    e) the tobaccos of said inner cores (1i, 2i) of said segments (1, 2) have the same of a very similar condensate potential;
    f) the tobaccos of said jackets (1a, 2a) of said segments (1, 2) have the same or a very similar condensate potential which differs greatly from the condensate potential of said inner cores (1i, 2i);
    g) by defining the resistances to draw of said inner cores (1i, 2i) and of said jackets (1a, 2a) of said segments (1, 2), and by adapting said filter (3),
    g1) the smoke is drawn substantially from the region having a high condensate potential of the first-burning segment (1) during smoking begin of the segmented filter cigarette; and
    g2) the smoke is drawn preferably from the region of said segment (2) having the lower condensate potential during smoking of the filter-end segment (2).
  2. The segmented filter cigarette as set forth in claim 1, characterised in that the overall length of said tobacco rod (1, 2) is 40 to 100 mm, preferably 45 to 70 mm.
  3. The segmented filter cigarette as set forth in claim 1 or 2, characterised in that said inner cores (1i, 2i) have a diameter from 3 to 6 mm, preferably from 4.5 to 5.5 mm.
  4. The segmented filter cigarette as set forth in any one of claims 1 to 3, characterised in that said first-burning segment (1) has a length corresponding to 0.1 to 0.8 times, preferably 0.3 to 0.4 times the overall length of said tobacco rod (1, 2).
  5. The segmented filter cigarette as set forth in any one of claims 1 to 4, characterised in that said inner cores (1i, 2i) and/or said jackets (1a, 2a) of said tobacco rod are provided with an additional, common, outer wrapping (25, 35) produced from cigarette paper or tobacco sheet.
  6. The segmented filter cigarette as set forth in any one of claims 1 to 5, characterised in that it comprises a co-axial filter (3) consisting of a filter core (3i), a wrapping (31) for said filter core (3i), a filter jacket (3a) and a wrapping (32) for said filter jacket (3a), said filter core (3i) and said filter jacket (3a) being structured of known filter materials, in particular of fibres or non-woven fabric.
  7. The segmented filter cigarette as set forth in claim 6, characterised in that said diameter of said filter core (3i) is 2.5 to 6.5 mm, preferably 3.5 to 5.5 mm.
  8. The segmented filter cigarette as set forth in claim 6 or 7, characterised in that said wrapping (31) of said filter core (3i) consists of paper or a sheet, in particular of cellulose acetate or polyolefines, and has a low permeability to air, it being preferably impermeable to air.
  9. The segmented filter cigarette as set forth in any one of claims 6 to 8, characterised in that said filter (3) has at least one further filter segment adjoining the mouth end.
  10. The segmented filter cigarette as set forth in any one of claims 6 to 9, characterised in that one of said two co-axial filter elements (3i, 3a) has a high filtering efficiency whilst the other has a low filtering efficiency.
  11. The segmented filter cigarette as set forth in any one of claims 1 to 10, characterised in that the ratio (q1) of the resistance to draw of said jacket (1a) of said first-burning segment (1) to the resistance to draw of said inner core (1i) of said first-burning segment (1) is smaller than the ratio (q2) of the resistance to draw of said jacket (2a) of said filter-end segment (2) to the resistance to draw of said inner core (2i) of said filter-end segment (2), and in that the tobaccos of said jackets (1a, 2a) of said segments (1, 2) have a high condensate potential.
  12. The segmented filter cigarette as set forth in claim 11, characterised in that the resistance to draw of said jacket (1a) of said first-burning segment (1), relative to a tobacco rod length of 63 mm, is 20 to 40 mm WC, preferably 25 to 35 mm WC, whilst the resistance to draw of said inner core (1i) of this segment (1), relative to a tobacco rod of length 63 mm, is 300 to 600 mm WC, preferably 450 to 550 mm WC.
  13. The segmented filter cigarette as set forth in claim 11 or 12, characterised in that the resistance to draw of said jacket (2a) of said filter-end segment (2), relative to a tobacco rod length of 63 mm, is 100 to 300 mm WC, preferably 125 to 175 mm WC, whilst the resistance to draw of said inner core (2i) of this segment (2), relative to a tobacco rod of length 63 mm, is 50 to 150 mm WC, preferably 75 to 125 mm WC.
  14. The segmented filter cigarette as set forth in any one of claims 11 to 13, characterised in that the filtering efficiency of said filter core (3i) is 10 to 60%, preferably 10 to 30%, whilst the filtering efficiency of said filter jacket (3a) is 70 to 100%, preferably 90 to 100%, and in that said filter (3) has a ventilation degree from 0 to 80 %.
  15. The segmented filter cigarette as set forth in any one of claims 11 to 14, characterised in that the resistances to draw of said filter elements (3i, 3a) are adjusted as a function of filter ventilation used, such that the ratio (sf) of the amount of smoke flowing into said jacket (3a) of said co-axial filter (3) to the amount of smoke flowing into said filter core (3i) of said co-axial filter (3) is substantially equal to the ratio (s2) of the amount of smoke flowing out of said jacket (2a) of said second segment (2) to the amount of smoke flowing out of said inner core (2i) of said second segment (2), namely in each case after said first-burning tobacco rod segment (1) has been smoked.
  16. The segmented filter cigarette as set forth in any one of claims 1 to 10, characterised in that the ratio (q1) of the resistance to draw of said jacket (1a) of said first-burning segment (1) to the resistance to draw of said inner core (1i) of said first-burning segment (1) is greater than the ratio (q2) of the resistance to draw of said jacket (2a) of said filter-end segment (2) to the resistance to draw of said inner core (2i) of said filter-end segment (2), and in that the condensate potential of the tobacco of said inner cores (1i, 2i) is high.
  17. The segmented filter cigarette as set forth in claim 16, characterised in that the resistance to draw of said jacket (1a) of said first-burning segment (1), relative to a tobacco rod length of 63 mm, is 100 to 300 mm WC, preferably 125 to 175 mm WC, whilst the resistance to draw of said inner core (1i) of this segment (1), relative to a tobacco rod of length 63 mm, is 50 to 100 mm WC, preferably 70 to 80 mm WC.
  18. The segmented filter cigarette as set forth in claim 16 or 17, characterised in that the resistance to draw of said jacket (2a) of said filter-end segment (2), relative to a tobacco rod length of 63 mm, is 25 to 100 mm WC, preferably 25 to 40 mm WC, whilst the resistance to draw of said inner core (2i) of this segment (2), relative to a tobacco rod of length 63 mm, is 125 to 300 mm WC, preferably 140 to 160 mm WC.
  19. The segmented filter cigarette as set forth in any one of claims 16 to 18, characterised in that the filtering efficiency of said filter core (3i) is 70 to 100%, preferably 90 to 100%, whilst the filtering efficiency of the filter jacket (3a) is 10 to 60%, preferably 10 to 30%, and in that the filter has a ventilation degree from 0 to 80%.
EP95119328A 1994-12-12 1995-12-07 Segmented filter cigarette Expired - Lifetime EP0716816B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4444157 1994-12-12
DE4444157A DE4444157C1 (en) 1994-12-12 1994-12-12 Filter cigarette structured in coaxial segments

Publications (3)

Publication Number Publication Date
EP0716816A2 EP0716816A2 (en) 1996-06-19
EP0716816A3 EP0716816A3 (en) 1998-02-04
EP0716816B1 true EP0716816B1 (en) 2001-11-07

Family

ID=6535556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119328A Expired - Lifetime EP0716816B1 (en) 1994-12-12 1995-12-07 Segmented filter cigarette

Country Status (6)

Country Link
US (1) US5730160A (en)
EP (1) EP0716816B1 (en)
AT (1) ATE208146T1 (en)
AU (1) AU703834B2 (en)
BR (1) BR9505393A (en)
DE (2) DE4444157C1 (en)

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DE19722812C2 (en) * 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultralight coaxial cigarette with multi-part filter
DE19757712C1 (en) * 1997-12-23 1999-06-24 Bat Cigarettenfab Gmbh Cross flow barrier coaxial cigarette and method of making a coaxial cigarette
GB2368771A (en) * 2000-11-09 2002-05-15 Patricia Ann Parker Cigarette
US7503330B2 (en) * 2003-09-30 2009-03-17 R.J. Reynolds Tobacco Company Smokable rod for a cigarette
US20050066986A1 (en) * 2003-09-30 2005-03-31 Nestor Timothy Brian Smokable rod for a cigarette
DE102005046581A1 (en) * 2005-09-28 2007-03-29 Hauni Maschinenbau Ag Multi-segmented filters properties measuring device for tobacco processing industry, has laser light source forming line of electromagnetic radiation on filters, where extension of line is smaller than diameter of filters
US8573230B2 (en) * 2005-12-12 2013-11-05 Philip Morris Usa Inc. Smoking article with coaxial tobacco rod
GB0816937D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a Smoking Article
GB0816933D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a smoking article
US8997755B2 (en) * 2009-11-11 2015-04-07 R.J. Reynolds Tobacco Company Filter element comprising smoke-altering material
US10609955B2 (en) 2011-04-08 2020-04-07 R.J. Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter
US11957163B2 (en) 2011-04-08 2024-04-16 R.J. Reynolds Tobacco Company Multi-segment filter element including smoke-altering flavorant
US9220298B1 (en) 2014-09-13 2015-12-29 Viiital, LLC Technologies for smoking
JP7061066B2 (en) * 2015-12-30 2022-04-27 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generating article with liquid delivery element
GB201607475D0 (en) 2016-04-29 2016-06-15 British American Tobacco Co Article for generating an inhalable medium and method of heating a smokable material
GB201712380D0 (en) 2017-08-01 2017-09-13 British American Tobacco Investments Ltd A modular tobacco industry product
KR102217756B1 (en) * 2019-08-20 2021-02-18 주식회사 케이티앤지 Smoking article having multi aerosol generating substrate

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DE4321069C2 (en) * 1993-06-24 1998-09-10 Bat Cigarettenfab Gmbh Coaxial filter cigarette

Also Published As

Publication number Publication date
AU4034395A (en) 1996-06-20
BR9505393A (en) 1997-10-28
US5730160A (en) 1998-03-24
AU703834B2 (en) 1999-04-01
DE59509806D1 (en) 2001-12-13
EP0716816A2 (en) 1996-06-19
ATE208146T1 (en) 2001-11-15
EP0716816A3 (en) 1998-02-04
DE4444157C1 (en) 1995-11-30

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