EP0085494A2 - Rauchartikel mit beschränkter Seitenströmung des Rauches - Google Patents

Rauchartikel mit beschränkter Seitenströmung des Rauches Download PDF

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Publication number
EP0085494A2
EP0085494A2 EP83300194A EP83300194A EP0085494A2 EP 0085494 A2 EP0085494 A2 EP 0085494A2 EP 83300194 A EP83300194 A EP 83300194A EP 83300194 A EP83300194 A EP 83300194A EP 0085494 A2 EP0085494 A2 EP 0085494A2
Authority
EP
European Patent Office
Prior art keywords
cigarette
wrapper
sidestream
sidestream smoke
smoking article
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.)
Withdrawn
Application number
EP83300194A
Other languages
English (en)
French (fr)
Other versions
EP0085494A3 (de
Inventor
Hal Edward Guess
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.)
RJ Reynolds Tobacco Co
Original Assignee
RJ Reynolds Tobacco Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RJ Reynolds Tobacco Co filed Critical RJ Reynolds Tobacco Co
Publication of EP0085494A2 publication Critical patent/EP0085494A2/de
Publication of EP0085494A3 publication Critical patent/EP0085494A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers

Definitions

  • This invention relates to smoking articles, such as cigarettes and cigars, and more particularly to smoking articles having an improved wrapping system, which produces significant reduction in visible sidestream smoke without impairing the characteristics which allow for smoker acceptance and manufacturing feasibility.
  • a burning cigarette produces combustion products which exist ir two phases.
  • a gaseous phase consists of gases, such as CO 2
  • a particulate phase consists of droplets of high molecular weight products of thermal degradation. The particulate phase is visible and makes up what is normally referred to as "cigarette smoke.”
  • the smoke can be divided into two components.
  • One is the mainstream smoke, the smoke which passes lengthwise through the cigarette to the smoker.
  • the other is sidestream smoke, the smoke emitted into the atmosphere by a cigarette during static burning between puffs.
  • Sidestream smoke constitutes a potential source of annoyance to the smoker and ethers in the vicinity.
  • the growing awareness of this problem can be seen readily in the widespread passage of laws restricting smoking in public places. Therefore, significant market potential exists for a cigarette which would substantially reduce the amount of sidestream smoke.
  • a reduced-sidestream cigarette must meet the following four criteria to be commercially acceptable:
  • Two general approaches may be taken to the sidestream smoke problem.
  • One is to reduce the total amount of sidestream material generated. This could be accomplished by reducing the amount of tobacco consumed during the smolder period between puffs, or by reduring the amount of smoke generated during combustion.
  • Owens disclosed a cigarette incorporating a tobacco substitute, such as shredded carbon filled paper, in U. S. Patent No. 3,902,504. The failure of cigarette manufacturers to produce a tobacco substitute that is acceptable to smokers, however, has prevented development of this concept.
  • Another approach is to reduce the amount of visible sidestream material.
  • the total amount of material released into the atmosphere during static burning may not be affected, but the droplets which constitute the particulate phase are reduced and the resultant stream is rendered invisible.
  • the resulting smoke is thought to be less irritating, and thus less objectionable to consumers.
  • This approach has yielded several candidates for a practical reduced-sidestream cigarette.
  • 3,586,005 proposed a wrapper coated with a metal, e.g., aluminum, iron, or tin.
  • the coated wrapper forms an ash in a tubular, unbroken sheath around the burned and burning tobacco, restricting airflow to the area through the burning. zone.
  • Lippman sought merely to reduce the production of "tar" through improved combustion of the tobacco, this invention also probably would reduce sidestream smoke. Testing this product, however, reveals that the resulting ash is so solid that when a consumer attempts to dislodge it, the ash tends also to pull the burning coal with it, extinguishing the cigarette. See McCarty, U. S. Patent No. 3,744,496. Thus, this product has been rejected for commercial exploitation.
  • This cigarette includes a double wrapper, the inner wrap being a special carbon-filled paper.
  • This product does exhibit a reduction in sidestream smoke, but consumer testing revealed a persistent acrid taste when smoked. Also, the product presents manufacturing difficulties stemming from the carbon-filled paper. The paper has proved difficult to adapt to cigarette-making machines, and tends to produce a high level of carbon dust in the work atmosphere. Thus, this development has not received commercial acceptance.
  • a single wrapper consisting of a paper containing magnesium oxides was advanced by Cline, U. S. Patent No. 4,231,377. Testing has shown that this product does reduce sidestream smoke, but at the cost of an off-taste to consumers. Also, the product exhibits "flyaway" ash, which consumers perceive as a detriment.
  • the present invention finds unexpected and surprising results in two areas of cigarette design, the wrapper configuration and burn additives. It is thus instructive to determine what the prior art teaches in each of these fields.
  • Kahane proposed two cigarette configurations in U. S. Patent Nos. 3,633,589 and 3,395,714.
  • the '589 patent suggested a composite wrapper in which the sheets consisted of vegetable fiber stocks.
  • the inner wrap was to be impervious to air, (such as a glassine or tracing paper) with the outer wrapper a conventional, porous sheet.
  • This wrapper allegedly enriched the mainstream smoke by restricting airflow through the burning zone.
  • the inner wrapper burned very slowly, leaving unburnt inner wrap up to the edge of the burning zone.
  • the outer wrapper functioned to maintain burn continuity, confer desired ashing qualities, and mask undesirable appearance caused by the translucent inner wrapper. Nowhere was reduced sidestream smoke mentioned.
  • this invention presents a problem, in that the impervious inner wrapper prevents all airflow to the tobacco rod, causing the cigarette to self-extinguish between puffs.
  • the '714 patent discussed above, did mention reduced sidestream, but the effect was attributed to reduced burning temperature and a lengthened low-temperature distillation zone behind the burning zone. Again, the conventional outer wrapper presumably was included for appearance and ashing qualities, as in the earlier patent.
  • the carbon-filled paper used here has a gray color, probably objectionable to consumers.
  • the patent discloses two advantages of the double wrapper: reduction of tobacco weight and normal cigarette appearance. Rather than teaching any effect from the double wrapper, the inventor speculates that the reduction in sidestream stems from increased burning temperature due to the carbon filler.
  • the magnesium oxide paper disclosed by Cline, U. S. Patent No. 4,231,377, discussed above, may be used in a double wrap configuration, according to the disclosure. Again, the cited advantages of double wrapping are tobacco weight reduction and cigarette appearance. Reduction of sidestream is attributed solely to the special magnesium oxide paper.
  • a second critical feature of the present invention is the effect of burn additives upon sidestream smoke.
  • the prior art is not simply silent on the subject, but rather it points an investigator away from the solution.
  • Burn additives also called burn chemicals
  • Their use stems from the fact that tobacco and paper tend to burn unevenly, leaving a loose, black or "flyaway” ash. Chemicals are thus added to cigarette paper to maintain burn continuity, to promote even burning, and to produce a white, firm ash.
  • Studies by Resnik, et al, and Jodl demonstrate that the most effective burn additives are alkali metal salts, primarily citrates, phosphates, nitrates, and acetates of sodium and potassium.
  • U. S. patents contain similar teaching.
  • Lanfry U. S. Patent No. 2,091,598, regards the use of potassium nitrate for burn enhancement as well-known, and suggests substituting a hydrocarbon oil for it to alleviate alleged harmful combustion products and disagreeable taste.
  • Cogbill in U. S. Patent No. 3,908,671, proposed a thermo-plastic wrap to reduce nicot-4ne delivery.
  • To promote burning he taught the addition of potassium nitrate in concentrations ranging from 1.5 to 2.8% by weight. He teaches that addition of over 2.8% potassium nitrate should not be used, because the cigarette would then burn too fast.
  • Another nonconventional wrapper is shown in Hind, U. S. Patent No.
  • the reduction of sidestream is caused by a "shrinking" of the wrapper at the char line.
  • the film-forming ingredient is said to be combined with an alkaline earth metal, preferably magnesium carbonate or calcium carbonate, but no proportions as percentage of the overall film weight is taught. Further the disclosure lumps two separate chemical paper additives, the burn additives, such as the citrates, and “fillers", such as calcium carbonate, both of which have distinct functions in the cigarette paper.
  • the prior art can be summarized in three statements. First, no one has produced a commercially acceptable cigarette which exhibits reduced sidestream smoke characteristics. Second, no teaching exists which suggests that a double-wrapped cigarette would be particularly successful in reducing sidestream smoke. Third, the prior art teaches that burn additives, such as the alkali metal nitrates and citrates, cannot, by themselves, effectively reduce sidestream smoke.
  • a commercially acceptable reduced-sidestream smoke cigarette can be produced by employing a double-wrap system, with at least one wrapper containing a super-high level of burning chemical, generally in a range from 9 to 20% by weight of an alkali metal salt.
  • An object of this invention is to provide a smoking article which emits substantially less sidestream smoke than does a conventional product.
  • Another object of this invention is to provide a reduced sidestream cigarette which meets cigarette industry criteria for commercial exploitation.
  • FIG. 1 shows the combustion area of a typical smoking article, such as a single-wrap cigarette.
  • the cigarette itself comprises a tobacco rod 25 encapsulated within a paper wrapper 21.
  • the combustion area comprises three distinct zones.
  • the burning zone 14 consists of the area where combustion occurs. Extending behind the burning zone for several millimeters is the pyrolysis zone. Here, pyrolysis occurs, as heat from the burning zone breaks down the tobacco and the paper wrapper into their constituent components.
  • the cigarette ash encloses the burning zone, extending from the char line 22 to the tip of the cigarette 26. Two distinct types of ash are formed.
  • the tobacco ash 24 is generally loose, flaky, and dark- colored.
  • the paper ash 23 has a whitish color and is relatively firm.
  • Cigarette smoke can be analyzed from two aspects. From one point of view, the smoke is produced in two components. Mainstream smoke is produced when the smoker draws on the cigarette, and it flows lengthwise down the tobacco rod to the smoker.
  • a gaseous phase consists of gases, such as CO 2 . It results from relatively complete combustion within the burning zone 14.
  • a particulate phase consists of droplets of high-molecular weight compounds.
  • the familiar plume of smoke arising from the tip of a cigarette is the particulate phase of sidestream smoke, or visible sidestream smoke. It is produced by thermal degradation within the pyrolysis zone, and it exits into the atmosphere by passing through the cigarette wrapper and paper ash at and immediately behind the char line 22.
  • a cigarette 10 which produces significantly less sidestream smoke according to the present invention is shown in Figure 2.
  • This cigarette consists of a conventional tobacco rod 13, enclosed within a two-layer wrapper, an outer wrap 11 and an inner wrap 12.
  • Most constituents of the two wrappers may be varied widely, according to principles well-known in the art, but at least one of the wrappers must contain an elevated level of a burning chemical. The critical parameters are discussed in more detail hereafter.
  • the smoking article may utilize other well-known techniques to control smoking properties. For example, filtration or air dilution may be included to control "tar" and nicotine levels. Similar design variables will be obvious to those skilled in the art.
  • Figure 3 depicts the best hypothesis for the result.
  • the burning zone 14 is enclosed within the paper ash 16 and tobacco ash 17.
  • the paper ash seems to be especially hard and impervious to air flow.
  • the result is to block the emanation of the material that ultimately forms the particulate phase of the sidestream smoke from the vicinity of the char line 15.
  • the material is forced into the burning zone 14, where they are reduced into lower molecular weight compounds, which exit through the tobacco ash 17; primarily as gaseous, invisible sidestream smoke.
  • the parameters underlying this effect are more fully discussed in connection with the examples of the invention.
  • Control 1 was a conventional 85mm cigarette, widely marketed under the trademark WINSTON. It had a single wrapper, consisting of a paper available from suppliers such as Schweitzer Division of Kimberly-Clark Corporation, Ecusta Paper Division of Olin Corporation, and others under the designation "719.”
  • Control 2 was double-wrapped with conventional cigarette paper, available from suppliers under the designation "853.”
  • Example 1 has an inner wrapper based upon a reconstituted tobacco stock normally used on small cigars.
  • the outer wrap is a conventional "853" paper.
  • Example 2 has two special paper wrappers, developed by employing the lesson learned from Example 1 to produce a commercially feasible, reduced-sidestream cigarette.
  • Example 1 Comparing the results achieved by Example 1 with those of Control 2, it is apparent that substitution of special paper in the inner wrapper produces dramatic and unexpected results.
  • Table II the Control 2 product (double-wrapped with conventional paper) did reduce sidestream smoke and tar somewhat, but not to commercially feasible levels.
  • the double wrapper imparted an unpleasant "papery" taste to the smoke.
  • Example 1 boosted the visible sidestream reduction beyond 50%, and cut sidestream smoke tar almost in half without sacrificing taste. No explanation for this result was apparent from conventional knowledge. Analyzing the physical characteristics of Control 1, Control 2 and Example 1, the most striking difference is the superabundance of burning chemical, potassium nitrate, within the special paper.
  • the elevated level of potassium nitrate within the special paper was entirely serendipitous, because it had not been-added to promote burning; rather its presence was due to treatment of the paper with tobacco extracts to enable it to perform as a small cigar, and those extracts contained high levels of potassium nitrate.
  • Example 1 inner wrapper was tested thoroughly to determine what constituents contributed to the reduction of visible sidestream. This analysis isolated the burning chemical as the responsible constituent. Thereafter, it was possible to dispense with the other special constituents of the Example 1 inner wrapper, all of which contributed to a relatively high manufacturing cost.
  • the Example 2 inner wrapper is thus very similar to conventional paper except for the high level of potassium citrate.
  • the preferred embodiment employs a flax based paper, but a wood cellulose or other well-known base could also be used, as would be readily appreciated by those skilled in the art.
  • Example 2 Experimentation with the parameters of the double-wrap system shown in Example 1 led to the development of Example 2. Development focused upon the burning chemical level and composition. Although any of the well-known burning additives will produce the desired effect, potassium citrate proved to be the optimum choice. It was also found during experimentation that the relatively high thickness and basis weight of the Example 1 inner wrap enhanced the reduction of visible sidestream smoke. Because basis weight affects the amount of cigarette wrapper which can be mounted.on a bobbin for use in a high-speed cigarette making machine, an attempt was made to reduce the basis weight of the Example 2 inner wrap. Reducing the porosity of the Example 2 wrap allowed the production of a paper which has significantly reduced basis weight when compared to the Example 1 inner wrap, and is thus more readily adaptable to high-speed production.
  • FIG. 4 charts reduction of sidestream smoke as a function of the percentage of potassium citrate (by weight) in the inner wrapper of Example 2. As revealed there, a concentration of about 9% by weight is required to reach a 50% reduction of visible sidestream. Reduction seems to be maximized at about 20% concentration. Other experimentation confirmed that the desired concentration falls within the range of 9-20%.
  • Example 2 outer wrap more closely corresponds to conventional cigarette paper in terms of basis weight and thickness, but it emobodies the teaching of Example 1 in having a low porosity and a relatively high level of burning chemical. It was found during development that having very high (over 9%) levels of burning chemical in both wrappers resulted in reduced sidestream, but at a cost of imparting a cigar-like taste to the cigarette. Also, a product having an inner wrapper with little to no burning chemical and an outer wrapper with high levels was found to produce the reduced sidestream effect, but only at citrate levels around 20%. At such high levels of burning additive, however, paper manufacturing difficulties appear.
  • This invention has made possible the achievement of a long-sought goal of the cigarette industry. By disregarding "common wisdom" of the prior art, this invention enabled the production of a commercially viable reduced-sidestream smoke cigarette.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Paper (AREA)
EP83300194A 1982-01-15 1983-01-14 Rauchartikel mit beschränkter Seitenströmung des Rauches Withdrawn EP0085494A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33959382A 1982-01-15 1982-01-15
US339593 1982-01-15

Publications (2)

Publication Number Publication Date
EP0085494A2 true EP0085494A2 (de) 1983-08-10
EP0085494A3 EP0085494A3 (de) 1985-03-13

Family

ID=23329742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300194A Withdrawn EP0085494A3 (de) 1982-01-15 1983-01-14 Rauchartikel mit beschränkter Seitenströmung des Rauches

Country Status (5)

Country Link
EP (1) EP0085494A3 (de)
JP (1) JPS58121786A (de)
BR (1) BR8300173A (de)
CA (1) CA1196542A (de)
ES (1) ES8405600A1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542581A1 (fr) * 1981-12-24 1984-09-21 Kimberly Clark Co Procede et enveloppe d'un article de fumeur pour reduire le courant auxiliaire de fumee
EP0193607A1 (de) * 1984-09-03 1986-09-10 Japan Tobacco Inc. Zigarette
US4622983A (en) * 1983-08-08 1986-11-18 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
FR2600684A1 (fr) * 1986-06-30 1987-12-31 Kimberly Clark Co Enveloppes d'articles a fumer et procede de fabrication
EP0375844A2 (de) * 1988-11-30 1990-07-04 JULIUS GLATZ GmbH Umhüllung für Raucherartikel
EP0402059A2 (de) * 1989-06-05 1990-12-12 Philip Morris Products Inc. Rauchartikel mit geringer Seitenströmung des Rauches und Umhüllung dafür
WO1990014776A1 (en) * 1989-06-02 1990-12-13 Rothmans, Benson & Hedges Inc. Cigarette with decreased sidestream smoke
EP0403129A2 (de) * 1989-06-12 1990-12-19 Philip Morris Products Inc. Mehrschichtiges Zigarettenpapier zum Vermindern der Seitenströmung des Rauches
EP0407022A2 (de) * 1989-05-26 1991-01-09 Imperial Tobacco Limited Rauchartikelhülle
AU605932B2 (en) * 1988-04-20 1991-01-24 P.H. Glatfelter Company Cigarette wrappers containing freshly precipitated magnesium hydroxide
FR2652237A1 (fr) * 1987-09-03 1991-03-29 British American Tobacco Co Perfectionnement concernant des articles a fumer.
EP0432927A1 (de) * 1989-12-14 1991-06-19 Fabriques De Tabac Reunies S.A. Zigarette
EP0458526A1 (de) * 1990-05-24 1991-11-27 R.J. Reynolds Tobacco Company Zigarette
US5172708A (en) * 1989-05-26 1992-12-22 Drewett Christopher G Smoking articles
US10588341B2 (en) 2013-12-11 2020-03-17 Schweitzer-Mauduit International, Inc. Wrappers for smoking articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW387799B (en) * 1998-01-20 2000-04-21 Japan Tobacco Inc Low side-flow roll cigarette

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733720A (en) * 1956-02-07 apfttf papfp wpappfp
US3722515A (en) * 1972-03-13 1973-03-27 Brown & Williamson Tobacco Cigarette with modified paper wrapper
US3908671A (en) * 1973-12-12 1975-09-30 Brown & Williamson Tobacco Thermoplastic cigarette wrapper
US4231776A (en) * 1975-07-22 1980-11-04 Battelle Memorial Institute Method for manufacturing a panel of anisotropic ceramic glass

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733720A (en) * 1956-02-07 apfttf papfp wpappfp
US3722515A (en) * 1972-03-13 1973-03-27 Brown & Williamson Tobacco Cigarette with modified paper wrapper
US3908671A (en) * 1973-12-12 1975-09-30 Brown & Williamson Tobacco Thermoplastic cigarette wrapper
US4231776A (en) * 1975-07-22 1980-11-04 Battelle Memorial Institute Method for manufacturing a panel of anisotropic ceramic glass

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542581A1 (fr) * 1981-12-24 1984-09-21 Kimberly Clark Co Procede et enveloppe d'un article de fumeur pour reduire le courant auxiliaire de fumee
GB2136668A (en) * 1981-12-24 1984-09-26 Kimberly Clark Co Modified cigarette wrappers
DE3310092A1 (de) * 1981-12-24 1984-09-27 Kimberly-Clark Corp., Neenah, Wis. Huellenmaterial zur verringerung von seitenstrom-rauch und verfahren zu dessen herstellung
US4622983A (en) * 1983-08-08 1986-11-18 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
EP0193607A4 (de) * 1984-09-03 1987-06-03 Japan Tobacco Inc Zigarette.
EP0193607A1 (de) * 1984-09-03 1986-09-10 Japan Tobacco Inc. Zigarette
FR2600684A1 (fr) * 1986-06-30 1987-12-31 Kimberly Clark Co Enveloppes d'articles a fumer et procede de fabrication
EP0251254A1 (de) * 1986-06-30 1988-01-07 Kimberly-Clark Corporation Zigarettenpapier mit herabgesetzter Seitenströmung
US4805644A (en) * 1986-06-30 1989-02-21 Kimberly-Clark Corporation Sidestream reducing cigarette paper
FR2652237A1 (fr) * 1987-09-03 1991-03-29 British American Tobacco Co Perfectionnement concernant des articles a fumer.
AU605932B2 (en) * 1988-04-20 1991-01-24 P.H. Glatfelter Company Cigarette wrappers containing freshly precipitated magnesium hydroxide
EP0375844A2 (de) * 1988-11-30 1990-07-04 JULIUS GLATZ GmbH Umhüllung für Raucherartikel
EP0375844A3 (en) * 1988-11-30 1990-12-12 Julius Glatz Gmbh Wrapper for an article of smoking
US5172708A (en) * 1989-05-26 1992-12-22 Drewett Christopher G Smoking articles
EP0407022A3 (en) * 1989-05-26 1991-07-03 Imperial Tobacco Limited Wrapper for smoking articles
EP0407022A2 (de) * 1989-05-26 1991-01-09 Imperial Tobacco Limited Rauchartikelhülle
WO1990014776A1 (en) * 1989-06-02 1990-12-13 Rothmans, Benson & Hedges Inc. Cigarette with decreased sidestream smoke
EP0402059A3 (de) * 1989-06-05 1991-05-15 Philip Morris Products Inc. Rauchartikel mit geringer Seitenströmung des Rauches und Umhüllung dafür
TR25021A (tr) * 1989-06-05 1992-09-01 Philip Morris Prod Azaltilmis yan akim dumani sergileyen icim maddesi ve bunun icin sarma kagidi.
EP0402059A2 (de) * 1989-06-05 1990-12-12 Philip Morris Products Inc. Rauchartikel mit geringer Seitenströmung des Rauches und Umhüllung dafür
EP0403129A2 (de) * 1989-06-12 1990-12-19 Philip Morris Products Inc. Mehrschichtiges Zigarettenpapier zum Vermindern der Seitenströmung des Rauches
EP0403129A3 (de) * 1989-06-12 1991-12-27 Philip Morris Products Inc. Mehrschichtiges Zigarettenpapier zum Vermindern der Seitenströmung des Rauches
US5143098A (en) * 1989-06-12 1992-09-01 Philip Morris Incorporated Multiple layer cigarette paper for reducing sidestream smoke
TR26150A (tr) * 1989-06-12 1995-02-15 Philip Morris Prod Yan akim dumanini azaltmak icin cok katli sigara kagidi.
EP0432927A1 (de) * 1989-12-14 1991-06-19 Fabriques De Tabac Reunies S.A. Zigarette
EP0458526A1 (de) * 1990-05-24 1991-11-27 R.J. Reynolds Tobacco Company Zigarette
US10588341B2 (en) 2013-12-11 2020-03-17 Schweitzer-Mauduit International, Inc. Wrappers for smoking articles

Also Published As

Publication number Publication date
BR8300173A (pt) 1983-10-11
EP0085494A3 (de) 1985-03-13
JPS58121786A (ja) 1983-07-20
ES518989A0 (es) 1984-06-16
CA1196542A (en) 1985-11-12
ES8405600A1 (es) 1984-06-16

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