EP1623636B2 - Zigarette mit verbesserter niedrigfeuerausbreitung - Google Patents

Zigarette mit verbesserter niedrigfeuerausbreitung Download PDF

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Publication number
EP1623636B2
EP1623636B2 EP04727107.7A EP04727107A EP1623636B2 EP 1623636 B2 EP1623636 B2 EP 1623636B2 EP 04727107 A EP04727107 A EP 04727107A EP 1623636 B2 EP1623636 B2 EP 1623636B2
Authority
EP
European Patent Office
Prior art keywords
cigarette
cigarette paper
paper
burn
coresta units
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
EP04727107.7A
Other languages
English (en)
French (fr)
Other versions
EP1623636A4 (de
EP1623636B1 (de
EP1623636A1 (de
Inventor
Takaaki c/o Japan Tobacco Inc. MATSUFUJI
Takeo c/o Japan Tobacco Inc. TSUTSUMI
Takashi c/o Japan Tobacco Inc. KOMINAMI
Keigo c/o Japan Tobacco Inc. MIURA
Ken c/o Japan Tobacco Inc. UYAMA
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
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
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Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP1623636A1 publication Critical patent/EP1623636A1/de
Publication of EP1623636A4 publication Critical patent/EP1623636A4/de
Publication of EP1623636B1 publication Critical patent/EP1623636B1/de
Application granted granted Critical
Publication of EP1623636B2 publication Critical patent/EP1623636B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

  • the present invention relates to a low flame-spreading cigarette that is unlikely to cause flame spread from the kindling to the surroundings so as not to allow the ignited cigarette to cause fire by, for example, the carelessness of the smoker.
  • Cigarettes have been proposed, including, for example, a cigarette having a cellulose paper band, which is 2 to 20 mm wide, formed on the cigarette paper to impart self-extinguishing property(see Japanese Patent Disclosure (Kokai) No. 63-85200 ), and a cigarette in which a band coated with a flame retardant substance is formed on the cigarette paper (see Japanese Patent Disclosure (Kokai) No. 7-300795 ), in order to prevent the spread of flame from the kindling to, for example, the floor, where the cigarette is dropped onto, for example, the floor by the carelessness of the smoker. Further, a cigarette paper having a nonflammable substance pasted thereto is also known.
  • a cigarette has been proposed, in which a smoking material rod having a loading density of 100 to 260 mg/cm 3 is wrapped by a wrapping paper having an air permeability not higher than 7 CORESTA units (see Japanese Patent No. 3,001,582 ). Further, a cigarette has been proposed, in which the burn rate is lowered by using a wrapping paper having a low air permeability (7 CORESTA units), having a small amount of loading material, and having a small basis weight (see International Publication WO 01/48316 ).
  • the tobacco burn is made nonuniform because the cigarette paper includes a flame retardant region and a flammable region.
  • the smoking taste is made nonuniform.
  • the flame spread is lowered by lowering the air permeability of the cigarette paper for this purpose.
  • the ventilation effect produced by the cigarette paper is lowered so as to increase the amount of the carbon monoxide (CO) contained in the mainstream smoke, increasing the carbon monoxide/tar ratio (C/T ratio).
  • CO carbon monoxide
  • C/T ratio carbon monoxide/tar ratio
  • an object of the present invention is to provide a cigarette, which is substantially equal to an ordinary cigarette in smoking behavior and in the burn rate, and which permits improving the C/T ratio in the mainstream smoke and exhibits low flame spread.
  • a cigarette achieving the above object can be obtained merely by setting the inherent air permeability of the cigarette paper wrapping the tobacco filler material rod and the amount of the loading material mixed in the cigarette paper at prescribed values.
  • the amount of loading material can be decreased as much as possible within the range of maintaining the static burn by setting the inherent air permeability of the cigarette paper to fall within a prescribed range.
  • the present invention is based on these findings.
  • the cigarette of the present invention maintains static burn, and can exhibit a low flame spread property such that, when left to stand on a substrate after static burn over a prescribed distance, a median value of a moving distance of a char line of the cigarette paper in an axial direction of the cigarette until the burn of the cigarette is stopped is not larger than 8 mm.
  • a cigarette according to the present invention comprises a tobacco filler material rod and a cigarette paper wrapping the tobacco filler material rod.
  • the cigarette of the present invention has an outer appearance and shape similar to those of an ordinary cigarette.
  • the tobacco filler material rod used in the cigarette of the present invention is formed of, e.g., ordinary shredded tobacco.
  • the shredded tobacco may contain expanded tobacco and regenerated tobacco, and the central vein of tobacco leaf.
  • the loading density of the shredded tobacco is 130 to 260 mg/cm 3 . If the loading density fails to fall within the range given above, it may sometime become difficult to suppress sufficiently the flame spread even if the tobacco rod is wrapped in the cigarette paper of the present invention. It is more preferable that the loading density of the tobacco filler material is 130 to 230 mg/cm 3 , further preferably 140 to 230 mg/cm 3 .
  • the shredding width of the shredded tobacco to be equal to that of ordinary shredded tobacco. However, in view of low flame spread, it is desirable for the shredding width to be relatively large, i.e., 0.5 to 1.5 mm, more preferably 0.8 to 1.2 mm.
  • the cigarette paper used in the present invention is based on ordinary pulp such as flax pulp used for forming ordinary cigarette paper and, thus, contains pulp.
  • the cigarette paper used in the present invention has an inherent air permeability (the air permeability of the cigarette paper without any perforations made therein) of more than 20 CORESTA units (C.U.) but 80 CORESTA units or less. If the inherent air permeability of the cigarette paper sheet is not higher than 20 CORESTA units, the C/T ratio is increased in the cigarette mainstream smoke that is generated during the smoking stage. On the other hand, if the inherent air permeability of the cigarette paper exceeds 80 CORESTA units, the nonuniformity of the air permeability is increased.
  • the inherent air permeability of the cigarette paper is desirably more than 20 CORESTA units but 60 CORESTA units or less, and is more desirably 25 to 55 CORESTA units.
  • the cigarette paper may be perforated mechanically or electrically by the ordinary method.
  • the air permeability of the wrapping paper having such holes is not particularly limited.
  • the cigarette paper of the present invention contains loading materials.
  • the loading materials that are used are selected from calcium carbonate, potassium carbonate, calcium hydroxide and magnesium hydroxide.
  • the loading material is contained in the cigarette paper in an amount of 1.6 to 3.3 g/m 2 . If the amount of the loading material is smaller than 1.0 g/m 2 , the cigarette goes out during static burn. Also, if the loading material is contained in an amount exceeding 5.0 g/m 2 , low flame spread cannot be achieved. It is desirable for the amount of the loading material to be 1.4 to 3.7 g/m 2 , more desirably, according to the invention 1.6 to 3.3 g/m 2 . Also, the amount of loading material in the cigarette paper is preferably 6 to 25% by weight, more preferably 7 to 21% by weight, and furthermore preferably 8 to 17% by weight.
  • the basis weight of the cigarette paper is preferably 17 to 28 g/m 2 . If the basis weight is smaller than 17 g/m 2 , it tends to be difficult to stably manufacture the cigarette paper sheet. Also, if the basis weight exceeds 28 g/m 2 , flame spread tends to be promoted.
  • the basis weight of the cigarette paper is more preferably 18 to 25 g/m 2 , furthermore preferably 18 to 22 g/m 2 .
  • a burn adjusting agent such as citric acid or its salt (such as sodium salt or potassium salt) is added to the cigarette paper.
  • the content of the burn adjusting agent is 0.1 to 1.0% by weight. If the amount of burn adjusting agent exceeds 1.0% by weight, the C/T ratio tends to become high.
  • the amount of burn adjusting agent is preferably 0.1 to 0.6% by weight.
  • the cigarette paper of the present invention by having a tensile strength of 10 to 20 N/15 mm or more, can make cigarettes, without difficulty, even if applied to a high-speed cigarette making machine that permits manufacturing cigarettes at a rate of 8,000 to 12,000 cigarettes/min.
  • the tensile strength of the cigarette paper can be controlled by controlling the beating degree of the pulp or by controlling the amount of pulp used for manufacturing the cigarette paper sheet.
  • the tensile strength of the cigarette paper increases with increase in the amount of pulp per unit area of the cigarette paper or in the beating degree of the pulp.
  • a cigarette low in flame spread, and generating mainstream smoke having a small C/T ratio is obtained in spite of the relatively high inherent air permeability of the cigarette paper by setting the inherent air permeability of the cigarette paper and the amount of the loading material contained in the cigarette paper to fall within the ranges given above. Also, the cigarette of the present invention permits exhibiting a burn rate substantially equal to that of an ordinary cigarette.
  • the low flame-spreading property of the cigarette of the present invention may be such that, when left to stand on a substrate (10 superposed filter paper sheets) after static burn over a prescribed distance, a median value of a moving distance of a char line of the cigarette paper in an axial direction of the cigarette until the burn of the cigarette is stopped is not larger than 8 mm, preferably 4 mm or lees (measured according to ASTM E 2187-02b method).
  • the most frequently obtained value of the moving distance of the char line noted above may be 8 mm or less, preferably 4 mm or less.
  • Shredded tobacco was wrapped in a flax pulp cigarette paper having the specification shown in Table 1 such that the shredded tobacco had the loading density shown in Table 1 so as to fabricate 40 cigarettes for each case.
  • Calcium carbonate was used as the loading material
  • sodium citrate was used as the burn adjusting agent.
  • Flue-cured shredded tobacco or blended shredded tobacco were used as the shredded tobacco.
  • Table 1 also shows the inherent air permeability and the tensile strength of the cigarette paper. Incidentally, the tensile strength shown in Table 1 was measured by using a tensile strength tester STROGPAPHE-S manufactured by Toyo Seiki K.K. in accordance with the method specified in Japanese Industrial Standards (JIS) P 8113-1998 (the size of test piece: 15.0 mm X about 250 mm, the gripping distance: 180 ⁇ 2 mm, and the pulling rate: 50 mm/min).
  • JIS Japanese Industrial Standards
  • the static burn rates of the cigarettes thus fabricated were measured by the ordinary method in respect of the fabricated cigarette. Also, the percent full length burn on 10 superposed filter paper sheets was measured by the method specified in ASTM E2187-02b. Further, measurement was made of the median value of the moving distance of the char line of the cigarette paper in the axial direction of the cigarette after the ignited cigarette was placed on the filer papers until the cigarette burning is stopped (or went out). Table 2 shows the results.
  • Table 3 shows the results.
  • Table 1 Ex. No. Cigarette paper Shredded Tobacco Basis weight (g/m 2 ) Amount of loading material cigarette paper (g/m 2 ) Burn in adjusting agent (% by weight) Inherent air permeability (C.U.) Tensile strength (N/15mm) Shredding width (mm) Loading density (mg/cm 3 ) Comp. Ex. 1-1 (Ordinary Cig.
  • the cigarette fabricated by using the cigarette paper specified in the present invention and tobacco filler materials exhibits excellent low flame spread and a small C/T ratio.
  • the present invention provides a cigarette, which permits a smoking behavior similar to that of an ordinary cigarette, also permits a burn rate substantially equal to that of an ordinary cigarette, further permits exhibiting a low flame spread, and is small in C/T ratio in the generated mainstream smoke. Also, since a special band and a special flame retardant substance are not used in the present invention, the cigarette of the present invention continues to produce a prescribed taste under ordinary smoking behavior.

Landscapes

  • Paper (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)

Claims (10)

  1. Eine Zigarette, umfassend einen Tabakfüllmaterialstrang und ein Zigarettenpapier, das den Strang umhüllt, wobei das Zigarettenpapier eine inhärente Luftdurchlässigkeit von mehr als 20 CORESTA-Einheiten, aber 80 CORESTA-Einheiten oder weniger hat und ein Ladematerial in einer Menge von 1,6 bis 3,3 g/m2 beinhaltet, das Ladematerial ausgewählt ist aus der Gruppe, bestehend aus Calciumcarbonat, Kaliumcarbonat, Calciumhydroxid und Magnesiumhydroxid, das Tabakfüllmateual geschnittenen Tabak mit einer Breite von 0,5 bis 1,5 mm umfasst, und das Zigarettenpapier ein Verbrennungsreguliermittel in einer Menge von 0,1 bis 1,0 Gew.-% beinhaltet.
  2. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier eine inhärente Luftdurchlässigkeit von mehr als 20 CORESTA-Einheiten, aber 60 CORESTA-Einheiten oder weniger hat.
  3. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier eine inhärente Luftdurchlässigkeit von 25 bis 55 CORESTA-Einheiten hat.
  4. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier ein Grundgewicht von 17 bis 28g/m2 hat.
  5. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier ein Grundgewicht von 18 bis 25 g/m2 hat.
  6. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier ein Grundgewicht von 18 bis 22 g/m2 hat.
  7. Die Zigarette gemäß Anspruch 1, wobei das Zigarettenpapier ein Verbrennungsreguliermittel in einer Menge von 0 bis 0,6 Gew.-% beinhaltet.
  8. Die Zigarette gemäß Anspruch 1, wobei das Tabakfüllmaterial bei einer Ladedichte von 130 bis 260 mg/cm3 beladen wird.
  9. Die Zigarette gemäß Anspruch 1, wobei das Tabakfüllmaterial bei einer Ladedichte von 140 bis 230 mg/cm3 beladen wird.
  10. Die Zigarette gemäß Anspruch 1, die eine geringe Brandausweitungseigenschaft aufweist, sodass bei Stehenlassen auf 10 überlagerten Filterpapieren nach statischem Brennen über eine vorgeschriebene Entfernung und bestimmt nach dem ASTM E2187-02b-Verfahren ein Medianwert eines Bewegungsabstands einer Verkohlungslinie des Zigarettenpapiers in axialer Richtung der Zigarette, bis das Brennen der Zigarette gestoppt ist, nicht größer als 8 mm ist.
EP04727107.7A 2003-04-14 2004-04-13 Zigarette mit verbesserter niedrigfeuerausbreitung Expired - Lifetime EP1623636B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003108995 2003-04-14
PCT/JP2004/005254 WO2004091325A1 (ja) 2003-04-14 2004-04-13 改良された低延焼性のシガレット

Publications (4)

Publication Number Publication Date
EP1623636A1 EP1623636A1 (de) 2006-02-08
EP1623636A4 EP1623636A4 (de) 2009-07-22
EP1623636B1 EP1623636B1 (de) 2011-11-09
EP1623636B2 true EP1623636B2 (de) 2015-10-14

Family

ID=33295905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04727107.7A Expired - Lifetime EP1623636B2 (de) 2003-04-14 2004-04-13 Zigarette mit verbesserter niedrigfeuerausbreitung

Country Status (15)

Country Link
US (1) US20060027243A1 (de)
EP (1) EP1623636B2 (de)
JP (1) JP4504921B2 (de)
KR (1) KR100714812B1 (de)
CN (1) CN100571550C (de)
AT (1) ATE532423T2 (de)
CA (1) CA2522289C (de)
DK (1) DK1623636T4 (de)
ES (1) ES2371914T5 (de)
HK (1) HK1090813A1 (de)
PT (1) PT1623636E (de)
RU (1) RU2304913C2 (de)
TW (1) TWI243652B (de)
UA (1) UA83365C2 (de)
WO (1) WO2004091325A1 (de)

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US7677251B2 (en) * 2006-07-07 2010-03-16 R.J. Reynolds Tobacco Company Apparatus and methods for manufacturing cigarettes
WO2008103792A2 (en) * 2007-02-23 2008-08-28 Schweitzer-Mauduit International, Inc. Wrappers for smoking articles having reduced diffusion leading to reduced ignition proclivity characteristics
CN103418062B (zh) 2007-03-30 2017-04-12 菲利普莫里斯生产公司 用于输送药剂的装置和方法
JP5037617B2 (ja) * 2007-08-10 2012-10-03 日本たばこ産業株式会社 低延焼性のシガレット用巻紙
CN101896082B (zh) * 2007-12-14 2013-10-02 日本烟草产业株式会社 香烟过滤嘴及带有过滤嘴的香烟
KR101342839B1 (ko) * 2008-11-12 2013-12-17 니뽄 다바코 산교 가부시키가이샤 저연소성의 궐련용 권지
RU2536115C2 (ru) 2009-03-17 2014-12-20 Филип Моррис Продактс Са Система генерирования никотинового аэрозоля на основе табака
MY163517A (en) 2009-09-16 2017-09-15 Philip Morris Products Sa Improved device and method for delivery of a medicament
MY163444A (en) 2010-03-26 2017-09-15 Philip Morris Products Sa Smoking article with heat resistant sheet material
DE102012106154B4 (de) * 2012-07-09 2014-06-12 Delfortgroup Ag Zigarettenpapier mit verbesserter Luftdurchlässigkeit, Zigarette und Verfahren zum Herstellen eines Zigarettenpapiers
KR102055800B1 (ko) * 2013-09-27 2019-12-13 엘지이노텍 주식회사 토크센서
CN107075813B (zh) * 2014-12-02 2020-08-11 日本烟草产业株式会社 烟草用卷纸及使用了该烟草用卷纸的纸烟
TWI703936B (zh) 2015-03-27 2020-09-11 瑞士商菲利浦莫里斯製品股份有限公司 用於電熱式氣溶膠產生物件之紙質包覆材料
MX2018003691A (es) 2015-09-30 2018-04-30 Philip Morris Products Sa Articulo para fumar con humo de corriente lateral reducido.
EP3732999B1 (de) * 2017-12-26 2022-08-24 Japan Tobacco Inc. Rauchartikel mit filter
WO2020008510A1 (ja) 2018-07-02 2020-01-09 日本たばこ産業株式会社 非燃焼加熱型喫煙物品用の巻紙、非燃焼加熱型喫煙物品及び電気加熱型喫煙システム
GB201917917D0 (en) * 2019-12-06 2020-01-22 British American Tobacco Investments Ltd Tobacco composition
KR102402062B1 (ko) * 2020-01-03 2022-05-24 주식회사 케이티앤지 곡물 허스크가 함유된 흡연물질 래퍼와 이를 포함하는 흡연물품, 및 상기 흡연물품의 제조 방법

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EP0290911A2 (de) † 1987-05-15 1988-11-17 R.J. Reynolds Tobacco Company Rauchartikel
US4941486A (en) † 1986-02-10 1990-07-17 Dube Michael F Cigarette having sidestream aroma
EP0513984B1 (de) † 1991-04-12 2001-12-19 Philip Morris Products Inc. Rauchartikel mit neuer Papierumhüllung

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EP0290911A2 (de) † 1987-05-15 1988-11-17 R.J. Reynolds Tobacco Company Rauchartikel
EP0513984B1 (de) † 1991-04-12 2001-12-19 Philip Morris Products Inc. Rauchartikel mit neuer Papierumhüllung

Also Published As

Publication number Publication date
US20060027243A1 (en) 2006-02-09
CN100571550C (zh) 2009-12-23
ES2371914T3 (es) 2012-01-11
RU2304913C2 (ru) 2007-08-27
TWI243652B (en) 2005-11-21
EP1623636A4 (de) 2009-07-22
WO2004091325A1 (ja) 2004-10-28
TW200517066A (en) 2005-06-01
EP1623636B1 (de) 2011-11-09
CN1774184A (zh) 2006-05-17
EP1623636A1 (de) 2006-02-08
CA2522289A1 (en) 2004-10-28
KR20050121717A (ko) 2005-12-27
DK1623636T3 (da) 2012-01-02
JPWO2004091325A1 (ja) 2006-07-06
HK1090813A1 (en) 2007-01-05
ES2371914T5 (es) 2015-11-06
PT1623636E (pt) 2012-01-02
ATE532423T2 (de) 2011-11-15
RU2005135130A (ru) 2006-03-20
DK1623636T4 (en) 2015-11-16
UA83365C2 (uk) 2008-07-10
JP4504921B2 (ja) 2010-07-14
CA2522289C (en) 2008-12-09
KR100714812B1 (ko) 2007-05-04

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