EP0175684B1 - Behandlung von zigarettenpapier - Google Patents

Behandlung von zigarettenpapier Download PDF

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Publication number
EP0175684B1
EP0175684B1 EP84901502A EP84901502A EP0175684B1 EP 0175684 B1 EP0175684 B1 EP 0175684B1 EP 84901502 A EP84901502 A EP 84901502A EP 84901502 A EP84901502 A EP 84901502A EP 0175684 B1 EP0175684 B1 EP 0175684B1
Authority
EP
European Patent Office
Prior art keywords
cigarette
paper
wrapper
porosity
burn rate
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
Application number
EP84901502A
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English (en)
French (fr)
Other versions
EP0175684A1 (de
EP0175684A4 (de
Inventor
Charles C. Cohn
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.)
COHN ROSE
Original Assignee
Cohn Rose
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Filing date
Publication date
Application filed by Cohn Rose filed Critical Cohn Rose
Publication of EP0175684A1 publication Critical patent/EP0175684A1/de
Publication of EP0175684A4 publication Critical patent/EP0175684A4/de
Application granted granted Critical
Publication of EP0175684B1 publication Critical patent/EP0175684B1/de
Expired 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity

Definitions

  • This invention relates to the treatment of cigarette paper for fire resistance and for reduction of sidestream smoke, i.e. smoke emitted when the cigarette is not being puffed actively.
  • One object of this invention is to provide sidestream smoke reduction in a cigarette by a simple and inexpensive means and method which do not adversely affect the desirability of the cigarette to the smoker.
  • Another object of the invention is to provide a fire-resistant cigarette which is simple and inexpensive to manufacture, while avoiding the undesirable characteristics of prior fire-resistant cigarettes.
  • Another object of this invention is to impart both fire resistance and sidestream smoke reduction to a cigarette by a comparatively simple and inexpensive expedient, namely the use of a cigarette paper having special filler content and porosity characteristics, and optionally by the treatment of cigarette paper with specially chosen chemical substances. It is also an object of this invention to achieve fire resistance and/or sidestream smoke reduction while maintaining a light colored cigarette ash. Still another object of the invention is to achieve fire resistance and/or sidestream smoke reduction without impairing the external appearance of the cigarette. Still another object is to achieve fire resistance and/or sidestream smoke reduction without causing excessive particulates in the mainstream smoke, and without seriously affecting the draw characteristics of the cigarette.
  • the cigarette in accordance with the invention for fire resistance and the reduction of sidestream smoke, comprises a charge of tobacco in a cigarette paper wrapper having a Greiner porosity of about 50 or more seconds, the cigarette paper having a weight between about 10 and 35 grams per square meter.
  • the cigarette paper is substantially free of burn accelerator other than filler, and has a low filler content in the range of approximately 15 to 22%.
  • Cigarette paper meeting the above requirements has been used in the past for wrapping cigarette filters. However, it apparently has not been used as a consumable wrapper for cigarette tobacco. I have found that low-porosity cigarette paper meets all of the above-stated objectives of the invention except for reduction of particulates in the sidestream smoke.
  • low-porosity, low-filler content paper can be achieved by treatment of the paper in water, ethyl alcohol, or in a solution or suspension of one or more of a wide variety of linear burn rate-reducing substances, as will be discussed in detail below.
  • This specific class of burn rate-reducing substances comprises lactic acid, citric acid, magnesium citrate, magnesium acetate, tartaric acid, acetic acid, non-fat milk, skim milk and sugars. If only part of the area of this cigarette paper is treated, fire resistance and/or sidestream smoke reduction can be achieved while producing substantially less particulate matter than would be present in the mainstream smoke from a cigarette with a wrapper treated over its entire area.
  • Linear burn rate-reducing substance means any substance which, when applied to cigarette paper and dried, causes the cigarette paper to exhibit a lower static burn rate than the same paper in an untreated condition.
  • Such substances include citric acid, magnesium citrate, magnesium acetate, diammonium phosphate, trisodium phosphate, alumina gel, sodium tetraborate, ammonium hydroxide, nickel acetate, potato starch, sugar, aluminum stearate, manganese sulfate, ammonium sulfate, ammonium sulfamate, aluminum sulfate, acetic acid, lacetic acid, and non-fat milk.
  • sugars such as dextrose, maltose sucrose, etc.
  • Burn rate-reducing substances have varying characteristics. All are applicable to low-porosity, low filler content cigarette paper. However, only a limited group of burn rate-reducers is applicable to conventional cigarette paper. The substances in this limited group which I have found produce good results are citric acid, magnesium citrate, magnesium acetate, tartaric acid, acetic acid, lactic acid, non-fat milks, skim milk, maltose, dextrose, sucrose, fructose and lactose.
  • Filler means calcium carbonate (CaC0 3 ) or any other substances used in the cigarette industry for the purpose of accelerating burning of paper.
  • CaC0 3 and MgO are examples of other fillers which have been used.
  • Greiner porosity is a measure of cigarette paper porosity used throughout the cigarette industry. It refers to the time in seconds required for a specified volume of air to pass through a specified area of paper under a specified pressure. The higher the Greiner number, the lower the porosity of the paper.
  • Standard smoke is smoke emitted by a cigarette between puffs. This smoke does not pass through the tobacco rod or through the filter, and is considered particularly obnoxious by non-smokers.
  • the cigarette In testing for sidestream smoke, the cigarette is lit; puffed, held for one minute without puffing, and then puffed again. It is then placed under an inverted, widemouth glass jar three inches in diameter and seven inches tall. Sidestream smoke is evaluated by visually observing the quantity of smoke in the jar.
  • “Tar” refers to the liquid products of tobacco combustion, and is evaluated by observing the staining of the mouth end of a cigarette filter.
  • Drying refers to the removal of moisture or liquid substances by the application of heat, by the application of moving air, by simply permitting evaporation to take place under ambient conditions, or by any other suitable means. However, “drying” does not imply the removal of all moisture. Rather, in the context of the following description, “drying” refers to the removal of moisture after treatment of cigarette paper to an extent such that the cigarette paper has substantially the same moisture content that it had prior to treatment.
  • the "fire resistance test” referred to herein is a test described in the United States Federal Trade Commission's Standard for the Flammability of Mattresses and Mattress Pads (FF 4-72), (16 C.F.R. 1632).
  • the Federal Trade Commission's test is intended for testing mattresses using conventional cigarettes. However, the test is equally applicable to the testing of cigarettes using standard mattresses, and a test on a standard mattress was used to determine the fire resistance of the cigarettes described in the examples herein.
  • the mattress material used is a cotton ticking covering a cotton batting. The lit cigarette, after at least 30 seconds of free burn time in air, is placed horizontally over the mattress ticking, with uniform contact of the cigarette paper with the ticking.
  • the cigarette is permitted to burn until it self-extinguishes before full consumption, in which case it is relit and retested. It may burn its full length and then self-extinguish. The cigarette is observed to determine whether or not it causes smoldering or ignition of the test mattress.
  • a cigarette in accordance with the invention must burn for at least one minute between puffs.
  • the linear burn rate must be between about 1 and 6 mm/minute.
  • the linear burn rate must be substantially slower than the burn rate of a corresponding cigarette which has an untreated wrapper but which is otherwise identical to the cigarette having the treated wrapper. For example if an untreated cigarette has a burn rate of 5 mm/minute, a corresponding cigarette with a water-treated wrapper should be treated sufficiently to have a burn rate substantially less than 5 mm/minute, e.g. 4 mm/minute.
  • treated cigarettes will generally exhibit sidestream smoke reduction at a burn rate of 6 mm/minute or less, and some of the same cigarettes will also exhibit fire resistance at a burn rate anywhere in the range of 1 to 6 mm/minutes, other cigarettes must be treated sufficiently to have a burn rate as low as 3.5 mm/minute in order to have satisfactory fire resistance.
  • An important phase of this invention pertains to the use of a low porosity cigarette wrapper having a relatively low filler content.
  • the wrappers of conventional cigarettes have a Greiner porosity in the range of about 10 to 40 seconds, and a filler content (usually calcium carbonate, magnesium carbonate or magnesium oxide) in the range of approximately 22 to 35%
  • a filler content usually calcium carbonate, magnesium carbonate or magnesium oxide
  • the cigarette in accordance with the invention use a wrapper having a Greiner porosity of about 50 or more seconds the filler content of the cigarette paper being in the range of approximately 15 to 22%.
  • the weight of the cigarette paper is between about 10 and 35 grams per square meter as in the case of conventional cigarette paper.
  • a typical paper having these characteristics is the so-called "plug wrap", which is used as a wrapper for cigarette filters, but has not been used as a wrapper for tobacco.
  • a cigarette having a wrapper consisting of such paper exhibits excellent fire resistance. When dropped on a test mattress, it may cause some charring, but does not start a smolder or fire, and eventually extinguishes itself.
  • the cigarette tested was a "Winston-Lights" king size cigarette having an average circumference of approximately 25 mm.
  • the tested cigarettes were made from conventional cigarettes by removing the tobacco and wrapper from the filter plug, wrapping the low-porosity paper around the filter to form a tube, sealing the tube edges together, and carefully repacking the same tobacco in the tube to insure uniform tobacco density similar to that of the original cigarette.
  • the paper was chemically trated, it was treated before replacement of the tobacco.
  • the following four examples pertain to "Winston-Lights" kingsize cigarettes comprising tobacco wrapped in low-porosity, low-filler content cigarette paper.
  • the weight given refers to the weight of the paper, including the calcium carbonate filler, in grams per square meter.
  • the porosity is the Greiner porosity in seconds.
  • Cigarettes in accordance with Examples 1 through 4 inclusive are simple to manufacture by conventional cigarette-making machinery, inasmuch as the only difference between these two cigarettes and conventional cigarettes is in the nature of the paper used to wrap the tobacco.
  • a cigarette using a low-porosity wrapper with a low filler content has the further advantage that it burns more slowly than a conventional cigarette, and therefore consumes less tobacco in a given number of puffs. It is not known whether or not any health benefits result directly from the reduced rate of consumption of tobacco. However, the reduction in tobacco consumption makes it possible to use less tobacco in a cigarette of a given length, and to provide a longer and more effective filter.
  • low-porosity paper with a low filler content improves fire resistance, it has comparatively little effect on sidestream smoke production.
  • it is a simple matter to reduce sidestream smoke to very low levels by treating paper having low porosity and low filler content with water or ethyl alcohol, and thereafter drying the paper.
  • a cigarette so treated meets the necessary burning criteria in that it burns for at least one minute without puffing, and has a linear burn rate in the range of about 1-6 mm per minute.
  • Treatment of cigarette paper with water or ethyl alcohol is carried out simply by running the cigarette paper over and under rollers into a water or alcohol bath, and from there to a dryer which eliminates excess moisture or liquid content, bringing the moisture content of the cigarette paper back to its approximate original level.
  • the following two examples pertain to the treatment of low-porosity cigarette paper with water or ethyl alcohol.
  • Depositing a linear burn rate reducing substance in or on the paper further improves fire resistance and, in some cases, also produces a further reduction in sidestream smoke.
  • Deposition of the linear burn rate reducing substance can be carried out most conveniently, using a method similar to Example 5, by dissolving or suspending the substance in the water in which the cigarette paper is soaked.
  • a wide variety of substances can be used to reduce the linear burn rate of low-porosity cigarette paper. Examples of suitable treatments include the following. In each case, the weight of the cigarette paper was 27 g./m 2 , its CaC0 3 content was 18.5%, and its porosity was 50 seconds. The paper was soaked in an aqueous solution of the linear burn rate-reducing substance, and allowed to dry before wrapping the tobacco.
  • linear burn rate reducing substances which can be applied to low-porosity cigarette paper from an aqueous solution.
  • these include, for example, trisodium phosphate, disodium phosphate, diammonium phosphate, phosphoric acid, sulfuric acid, sodium hydroxide, borax, boric acid, ammonium hydroxide, nickel acetate, sodium silicate, ammonium sulfate, ammonium sulfamate and sodium dichromate.
  • These substances should be applied in low concentrations, i.e. of the order of 1 %, as higher concentrations tend to produce a darkening of the cigarette ash. (The substances of Examples 7-12 have little if any effect on ash coloration regardless of concentration).
  • any of the burn rate-reducing substances can be applied in very low concentrations by multiple treatment steps. That is, the paper is soaked in a solution containing a low concentration of a burn rate reducing substance, allowed to dry, then soaked again in the same or another solution of a burn rate-reducing substance, and again allowed to dry.
  • Non-fat milk is also effective as a linear burn rate reducer for reducing charring of the material used in the fire resistance test.
  • Non-fat milk can be conveniently applied as a suspension of non-fat dry milk in water.
  • a typical analysis of non-fat dry milk (Carnation brand) is as follows:
  • Cigarette paper with a Greiner porosity of 50 seconds, a weight of 27 g./m z and a CaC0 3 content of 18.5% was treated on one side in a suspension consisting of about 1% by weight of non-fat dry milk in water, and allowed to dry. This treatment leaves a glaze on the treated side of the paper.
  • the cigarette using the treated paper produced noticeably less charring and no smoldering of the test material than did a similar cigarette using untreated paper.
  • the concentration of non-fat dry milk can range from about 1% to about 20%, although higher concentrations within this range are not necessary. If a glazed appearance is not desired on the outside of the cigarette wrapper, the milk suspension can be applied to the side of the wrapper which ultimately faces toward the tobacco. Alternatively, both sides of the paper can be treated. Instead of non-fat dry milk, skim milk diluted with water can be used with equivalent effect.
  • insoluble linear burn rate reducing substances other than milk can be applied in a suspension.
  • examples of such substances are alumina gel, potato starch and aluminum stearate.
  • a typical aqueous suspension of one of these substances contains about 1% by weight of the substance.
  • Low-porosity wrappers have a relatively small effect on the draw characteristics of a cigarette, making it only slightly more difficult to draw a satisfactory amount of smoke into the mouth than in the case of an ordinary cigarette.
  • the draw characteristics of all cigarettes in accordance with this invention is acceptable and comparable to that of conventional cigarettes. In no event is the draw of a modified cigarette so difficult as to be seriously objectionable to ordinary smokes of that particular cigarette in its unmodified condition.
  • non-fat dry milk as a burn rate reducer has a number of advantages over the use of other burn rate reducers such as citric acid, magnesium citrate, etc.
  • the treated cigarette has a better appearance, and is smoother and easier to remove from the pack. It is resistant to moisture and has a longer shelf life, and its paper is more flexible than other treated papers. Furthermore, the paper retains its strength while wet during treatment with the non-fat dry milk suspension.
  • the paper is treated with a burn rate-reducing substance
  • These steps are especially desirable where the burn rate-reducing substance is in suspension or in solution in a relatively high concentration such as to form a visible deposit on the paper.
  • These steps are also desirable because, with the treated side toward the tobacco, there is less tendency for the burn rate-reducing substance to affect the color of the cigarette ash.
  • Higher concentrations of burn rate reducers can be used when the treated side of the paper is toward the tobacco. This method of treatment produces more effective smoke reduction and more effective fire resistance without materially affecting the appearance of the cigarette or its ash.
  • Treatment with milk as a burn rate reducer is different in that high concentrations of milk, while producing good fire resistance, tend to cause more sidestream smoke than intermediate concentrations.
  • An additional layer of conventional cigarette paper can be used to improve the performance of a cigarette using low-porosity paper.
  • the use of an additional layer of cigarette paper in a cigarette having low-porosity paper is illustrated by the following example:
  • an additional wrapper improved the performance of cigarettes using burn rate-reducing substances other than magnesium citrate.
  • the treated wrapper can be placed on the outside, and the untreated wrapper on the inside without materially affecting the performance of the cigarette.
  • An additional wrapper can be used with a cigarette the wrapper of which is treated over part of its area as described above, with similar improved results.
  • burn rate reducers in the group consisting of citric acid, magnesium citrate, magnesium acetate, tartaric acid, acetic acid, lactic acid, a sugar, or a suspension of non-fat milk or skim milk
  • concentrations of these primary burn rate reducing substances can be reduced without impairing performance if other burn rate reducing agents are present.
  • burn rate reducing agents which may be added are monoammonium phosphate, diammonium phosphate, ammonium sulfamate, boric acid, and sulfamic acid.

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  • Paper (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (9)

1. Zigarette, bestehend aus einer Tabakfüllung in einer Zigarettenpapierhülle mit einer Porosität nach Greiner von etwa 50 oder mehr Sekunden, wobei das Zigarettenpapier ein Gewicht zwischen etwa 10 und 35 Gramm pro Quadratmeter aufweist und weitgehend frei von Verbrennungsbeschleuniger außer Füllstoff ist, wobei der Füllstoffgehalt des Papiers im Bereich von ungefähr 15 bis 22 Prozent liegt.
2. Zigarette nach Anspruch 1, worin die Hülle durch Beschichten mindestens eines Teils der Oberfläche dieses Zigarettenpapieres mit Wasser oder Äthylakohol und anschließendes Trocknen dieses Zigarettenpapiers hergestellt wird.
3. Zigarette nach Anspruch 1 oder 2, worin die Hülle durch Abscheidung einer die lineare Brenngeschwindigkeit verringernden Substanz in oder auf dem Papier durch Beschichtung mindestens eines Teils der Papieroberfläche mit einer Lösung oder Suspension besagter Substanz hergestellt wird.
4. Zigarette nach Anspruch 3, worin die Hülle durch Abscheidung einer die lineare Brenngeschwindigkeit verringernden Substanz in oder auf dem Papier durch Beschichtung mindestens eines Teils der Papieroberfläche mit einer Lösung von Zitronensäure, Magnesiumcitrat, Magnesiumacetat, Weinsäure, Essigsäure, Milchsäure oder einem Zucker oder mit einer Suspension von fettfreier Milch oder Magermilch hergestellt wird.
5. Zigarette nach einem der Ansprüche 1 bis 4, mit einer zusätzlichen Papierlage in Berührung mit im wesentlichen der ganzen Oberfläche besagter Hülle auf einer iher Seiten, wobei diese zusätzliche Papierlage eine Zigarettenhülle mit einer Porosität nach Greiner von etwa 10 bis 40 Sekunden, einem Gewicht zwischen etwa 10 und 35 Gramm pro Quadratmeter und einem Füllstoffgehalt im Bereich von ungefähr 22 bis 35 Prozent ist.
6. Verfahren zur Herstellung einer Zigarettenhülle, wobei man mindestens einen Teil der Oberfläche eines Zigarettenpapiers einer Porosität nach Greiner von etwa 50 oder mehr Sekunden und einem Gewicht zwischen etwa 10 und 35 Gramm pro Quadratmeter mit Wasser oder in Äthylalkohol beschichtet, wobei dieses Papier weitgehend frei von Brennbeschleuniger außer Füllstoff ist und einen Füllstoffgehalt im Bereich von ungefähr 15 bis 22 Prozent aufweist.
7. Verfahren nach Anspruch 6, einschließlich der Stufe, daß man eine zusätzliche Papierlage mit der Oberfläche besagten Zigarettenpapiers in Berührung bringt, wobei diese zusätzliche Papierlage eine Zigarettenhülle mit einer Porosität nach Greiner von etwa 10 bis 40 Sekunden, einem Gewicht zwischen etwa 10 und 35 Gramm pro Quadratmeter und einem Füllstoffgehalt im Bereich von ungefähr 22 bis 35 Prozent ist.
8. Verfahren nach Anspruch 6 oder 7, worin das Wasser oder der Äthylalkohol eine die lineare Brenngeschwindigkeit verringernde Substanz enthält und worin die die lineare Brenngeschwindigkeit verringernde Substanz auf oder in dem Papier abgeschieden wird.
9. Verfahren nach Anspruch 8, worin das Wasser oder der Äthylalkohol eine die lineare Brenngeschwindigkeit verringernde Substanz aus der Zitronensäure, Magnesiumcitrat, Magnesiumacetate, Weinsäure, Essigsäure, Milchsäure, einen Zucker, fettfreie Milch und Magermilch umfassenden Gruppe enthält und worin die die lineare Brenngeschwindigkeit verringernde Substanz auf oder in dem Papier abgeschieden wird.
EP84901502A 1983-01-24 1984-03-14 Behandlung von zigarettenpapier Expired EP0175684B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46042383A 1983-01-24 1983-01-24

Publications (3)

Publication Number Publication Date
EP0175684A1 EP0175684A1 (de) 1986-04-02
EP0175684A4 EP0175684A4 (de) 1986-07-23
EP0175684B1 true EP0175684B1 (de) 1989-08-16

Family

ID=23828648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84901502A Expired EP0175684B1 (de) 1983-01-24 1984-03-14 Behandlung von zigarettenpapier

Country Status (5)

Country Link
EP (1) EP0175684B1 (de)
JP (1) JPS61501546A (de)
AU (2) AU2813184A (de)
CA (1) CA1211021A (de)
WO (1) WO1985004080A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639239B2 (en) * 1989-06-02 1993-07-22 Rothmans, Benson & Hedges Inc. Cigarette with decreased sidestream smoke
NO177624C (no) * 1989-10-31 1995-10-25 Philip Morris Prod Papirhylster for en rökeartikkel og anvendelse av dette
US5094253A (en) * 1990-01-05 1992-03-10 Brown & Williamson Tobacco Corporation Dye for coloring cigarette paper
US5168884A (en) * 1991-04-12 1992-12-08 Philip Morris Incorporated Smoking articles using novel paper wrapper
GB9122935D0 (en) * 1991-10-30 1991-12-18 Rothmans Benson & Hedges Novel cigarette system
US5254092A (en) * 1992-09-15 1993-10-19 American Medical Systems, Inc. Fluid flow check valve
TR28750A (tr) * 1992-12-18 1997-02-28 Rothmans Benson & Hedges Münferit sigaralarin, kismen icilmesi, söndürülmesi ve ondan sonra tekrar icilmesine, müsaade eden yeni bir sigara strüktürü.
TR26626A (tr) * 1992-12-18 1995-03-15 Rothmans Benson And Hedges Inc Yeni cok icimli sigara sistemi.
CN1474660A (zh) 2000-09-18 2004-02-11 �ָ��š���ɭ������˹���޹�˾ 带有不可燃处理材料的低侧流烟香烟
US6779530B2 (en) * 2002-01-23 2004-08-24 Schweitzer-Mauduit International, Inc. Smoking articles with reduced ignition proclivity characteristics
TW200401613A (en) 2002-04-22 2004-02-01 Rothmans Benson & Hedges A low ignition propensity cigarette having oxygen donor metal oxide in the cigarette wrapper
PH12014000291A1 (en) 2013-10-31 2016-05-02 Glatz Julius Gmbh Tobacco product wrapping material with controlled burning properties
PL2898784T3 (pl) 2014-01-24 2018-11-30 Reemtsma Cigarettenfabriken Gmbh Papieros z filtrem
KR101926724B1 (ko) 2017-08-10 2019-03-07 주식회사 케이티앤지 저발화성 궐련지의 코팅 조성물, 이를 이용하는 담배, 그리고 저발화성 궐련지의 제조방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE400863C (de) * 1922-09-01 1924-08-23 Otto Paul Koehre Verfahren zur Herstellung von Zigarettenpapier
GB514605A (en) * 1937-05-21 1939-11-13 Akciova Spolecnost Pro Prumysl A method of impregnating cigarette paper and cigarette sleeve tips and linings
US2738791A (en) * 1951-08-30 1956-03-20 Ecusta Paper Corp Cigarette paper
US3633589A (en) * 1970-02-27 1972-01-11 Wilhelm Kahane Cigarette having composite wrapper construction
BE791758A (fr) * 1971-11-24 1973-05-22 Olin Corp Enveloppe chargee de carbone pour article a fumer et article a fumer presentant une telle enveloppe
JPS4941600A (de) * 1972-08-28 1974-04-18
US4044778A (en) * 1973-09-10 1977-08-30 Cohn Charles C Cigarettes
US4129134A (en) * 1975-04-14 1978-12-12 Philip Morris Incorporated Smoking article
US4146040A (en) * 1977-03-17 1979-03-27 Cohn Charles C Cigarettes
US4231377A (en) * 1978-08-30 1980-11-04 Olin Corporation Wrapper for smoking articles containing magnesium oxide
JPS55114279A (en) * 1979-02-26 1980-09-03 Tokyo Pipe Co Ltd Tobacco controlling generation smoke * nicotine and tar
US4230131A (en) * 1979-03-09 1980-10-28 Eli Simon Self-extinguishing cigarettes
FI70366C (fi) * 1981-03-06 1986-09-19 British American Tobacco Co Tobaksprodukt
US4453553A (en) * 1983-01-24 1984-06-12 Cohn Charles C Treatment of cigarette paper

Also Published As

Publication number Publication date
AU2656888A (en) 1989-03-23
EP0175684A1 (de) 1986-04-02
AU601091B2 (en) 1990-08-30
JPS61501546A (ja) 1986-07-31
EP0175684A4 (de) 1986-07-23
CA1211021A (en) 1986-09-09
AU2813184A (en) 1985-10-11
WO1985004080A1 (en) 1985-09-26

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