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EP2906056B1 - Low ignition propensity cigarette paper and cigarette including the same - Google Patents

Low ignition propensity cigarette paper and cigarette including the same Download PDF

Info

Publication number
EP2906056B1
EP2906056B1 EP12886172.1A EP12886172A EP2906056B1 EP 2906056 B1 EP2906056 B1 EP 2906056B1 EP 12886172 A EP12886172 A EP 12886172A EP 2906056 B1 EP2906056 B1 EP 2906056B1
Authority
EP
European Patent Office
Prior art keywords
cigarette
coating layer
paper
low ignition
ignition propensity
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.)
Active
Application number
EP12886172.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2906056A4 (en
EP2906056A1 (en
Inventor
Young-Il JO
Jung-Yeon Park
Seong-Ho Ju
Jong-Oh Kim
Ik Won GWAK
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.)
KT&G Corp
Original Assignee
KT&G Corp
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 KT&G Corp filed Critical KT&G Corp
Publication of EP2906056A1 publication Critical patent/EP2906056A1/en
Publication of EP2906056A4 publication Critical patent/EP2906056A4/en
Application granted granted Critical
Publication of EP2906056B1 publication Critical patent/EP2906056B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed

Definitions

  • a low ignition propensity cigarette and a cigarette including the same are provided.
  • Prior art low ignition propensity cigarettes are known from e.g. US 2011/0132382 or US 2011/0108042 .
  • a cigarette filter may include activated carbon, flavoring materials and the like, and may be composed of a mono-filter or a multi-filter, and the cigarette filter is surrounded by a cigarette filter wrapping paper.
  • the cut tobacco leaves and the cigarette filter are connected with each other by a tipping paper, and the tipping paper may include fine holes.
  • a cigarette paper may be manufactured such that a target tar and a target nicotine may be carried out by appropriate porosity and combustibility during smoking, and may be manufactured such that smoke flavor which cigarettes intrinsically have may be imparted.
  • the cigarette paper may be manufactured of flax, wood pulp and the like.
  • a material such as starch is coated on a low ignition propensity cigarette paper in the form of a band, and the porosity of the coated band is low. Accordingly, when the combustion of the cigarette reaches a band portion, the amount of oxygen inflow to the cut tobacco leaf is reduced, and thus, the cigarette may be extinguished so that a fire-safe function may be accomplished. However, when the amount of oxygen passing through the band during smoking increases, the taste of the cigarette may change.
  • An exemplary embodiment may accomplish a fire-safe function and maintain the taste of the cigarette.
  • An exemplary embodiment may be used to achieve other problems which have not been specifically mentioned in addition to the problem.
  • a low ignition propensity cigarette paper includes a first coating layer disposed in a combustion section combusted by smoking, and a second coating layer disposed in a cigarette butt section where smoking is finished, wherein a basis weight of the first coating layer is smaller than a basis weight of the second coating layer.
  • the basis weight of the first coating layer may be about 0.5 g/m 2 to about 2.5 g/m 2
  • the basis weight of the second coating layer may be about 2.6 g/m 2 to about 5.5 g/m 2 .
  • a diffusion coefficient of the first coating layer may be greater than a diffusion coefficient of the second coating layer.
  • the diffusion coefficient of the first coating layer may be about 1.001 cm/sec to about 2.500 cm/sec, and the diffusion coefficient of the second coating layer may be about 0.070 cm/sec to about 1.000 cm/sec.
  • the combustion section may correspond to a distance a1 which the first coating layer is far from a first end portion of the low ignition propensity cigarette paper by about 5 mm to about 45 mm
  • the cigarette butt section may correspond to a distance a4 which the second coating layer is far from a second end portion of the low ignition propensity cigarette paper by about 7 mm to about 31 mm.
  • a distance a3 between the first coating layer and the second coating layer may be about 10 mm to about 52 mm.
  • a cigarette according to an exemplary embodiment includes a cigarette column portion, and a low ignition propensity cigarette paper surrounding the cigarette column portion, wherein the low ignition propensity cigarette paper includes a first coating layer disposed in a combustion section combusted by smoking and a second coating layer disposed in a cigarette butt section where smoking is finished, wherein a basis weight of the first coating layer is smaller than a basis weight of the second coating layer.
  • the cigarette may further include a cigarette filter portion.
  • the cigarette filter portion may include at least one filter member.
  • the cigarette filter portion may include at least one of an adsorbent or a flavoring agent.
  • An exemplary embodiment may accomplish a fire-safe function and maintain the taste of the cigarette.
  • FIGS. 1 to 3 a cigarette paper and a cigarette according to exemplary embodiments will be described in detail with reference to FIGS. 1 to 3 .
  • FIG. 1 is a perspective view schematically illustrating a cigarette according to an exemplary embodiment
  • FIG. 2 is a cross-sectional view schematically illustrating a cigarette according to an exemplary embodiment
  • FIG. 3 is a cross-sectional view schematically illustrating a cigarette according to an exemplary embodiment.
  • a cigarette 1 includes a cigarette column portion 10 combusted by fire and a cigarette filter portion 20 filtering cigarette smoke.
  • the cigarette column portion 10 may be surrounded by a cigarette paper 19, and the cigarette filter portion 20 may be surrounded by a cigarette filter wrapping paper 28.
  • the cigarette column portion 10 and the cigarette filter portion 20 may be connected with each other by a tipping paper 29 which may surround the cigarette column portion 10 and the cigarette filter portion 20.
  • a tipping paper 29 which may surround the cigarette column portion 10 and the cigarette filter portion 20.
  • an overlapping length of the cigarette paper 19 and the tipping paper 29 may be about 4 mm to about 6 mm.
  • the circumference of the cigarette may be about 5 mm to about 30 mm.
  • the cigarette filter portion 20 may be omitted.
  • the cigarette column portion 10 includes cut tobacco leaves 11 cut from leaf tobaccos processed by various methods.
  • the cigarette filter portion 20 may include a first filter portion 21.
  • the first filter portion 21 may be formed of acetate tow, paper and the like.
  • the cigarette filter portion 20 may be a multi-filter including two or more filter members.
  • the cigarette filter portion 20 includes a second filter portion 22 and a third filter portion 23.
  • the cigarette filter portion 20 may include three filter members, four filter members, and multi-filter members.
  • the cigarette filter portion 20 may include an adsorbent, a flavoring agent and the like.
  • the adsorbent may be activated carbon and the like, and the flavoring agent may be an herb flavoring material and the like.
  • one or more filter members may include at least one of the adsorbent or the flavoring agent.
  • at least one of the second filter portion 22 or the third filter portion 23 may include at least one of the adsorbent or the flavoring agent.
  • the cigarette paper 19 includes a base paper, and two coating layers 17 and 18 are disposed on the base paper, so that a fire-safe function may improve more than a cigarette paper with one coating layer.
  • the first coating layer 17 is disposed in a combustion section, combusted by smoking of customers, of the cigarette column portion 10
  • the second coating layer 18 is disposed in a cigarette butt section, where smoking is finished, of the cigarette column portion 10.
  • a length of the cigarette butt section excluding a cigarette filter may be about 10 mm to about 14 mm.
  • the first coating layer 17 may be disposed in a distance a1 which is far from an end portion of the cigarette 1 by about 5 mm to about 45 mm.
  • the second coating layer 18 may be disposed in a distance a2 which is far from an end portion of the tipping paper 29 by about 3 mm to about 25 mm.
  • a distance a3 between the first coating layer 17 and the second coating layer 18 may be about 10 mm to about 52 mm.
  • the second coating layer 18 may be disposed in a distance a4 which is far from an end portion of the cigarette paper 19 by about 7 mm to about 31 mm.
  • a1 may correspond to the combustion section
  • a2 or a4 may correspond to the cigarette butt section.
  • a width of the first coating layer 17 may be about 4 mm to about 6 mm
  • a width of the second coating layer 18 may be about 5 mm to about 10 mm.
  • the first and second coating layers 17 and 18 may basically reduce the porosity of the cigarette paper 19, such that oxygen inflow to the cigarette column portion 10 may decrease when the cigarette combustion reaches the first and second coating layers 17 and 18, thereby extinguishing the cigarette 1.
  • the cigarette paper 19 including the first and second coating layers 17 and 18 refers to a low ignition propensity cigarette paper.
  • the first and second coating layers 17 and 18 may be in the form of a band, and may have various shapes instead of the form of a band.
  • a coating composition is coated in the first and second coating layers 17 and 18.
  • the coating may include all kinds of methods that may form the coating composition on the cigarette paper 19, such as printing or spraying.
  • the amount of the coating composition coated on the first coating layer 17 which is disposed adjacent to the combustion start position of the cigarette column portion 10 is smaller than the amount of the coating composition coated on the second coating layer 18 which is disposed adjacent to the cigarette filter portion 20. Accordingly, the amount of oxygen inflow passing through the first coating layer 17 may be greater than the amount of oxygen inflow passing through the second coating layer 18, and a diffusion coefficient of the first coating layer 17 may be greater than a diffusion coefficient of the second coating layer 18.
  • the cigarette including the first coating layer 17 and the second coating layer 18 which have different physical properties from each other may not deteriorate the taste of the cigarette more than a cigarette including two coating layers which have the same physical properties as each other, for example the same amount of the coating composition.
  • the first coating layer 17 which the amount of oxygen inflow to the first coating layer 17 is greater than the amount of oxygen inflow to a coating layer of the conventional cigarette may be formed, thereby minimizing the deterioration of the taste of the cigarette.
  • the second coating layer 18 which the amount of oxygen inflow to the second coating layer 18 is similar to or smaller than the amount of oxygen inflow to a coating layer of the conventional cigarette may be formed, thereby maintaining a fire-safe function of the cigarette.
  • a basis weight of the first coating layer 17 may be about 0.5 g/m 2 to about 2.5 g/m 2
  • a basis weight of the second coating layer 18 may be about 2.6 g/m 2 to about 5.5 g/m 2 , and within this range, the fire-safe function of the cigarette may further improve and the deterioration of the cigarette taste may be further prevented.
  • a basis weight of the coating layer is a basis weight of the coating layer alone formed by coating the coating composition, excluding the base paper.
  • the basis weight of the coating layer is a value which is a difference between a basis weight of the coating layer and the base paper and a basis weight of the base paper excluding the coating layer.
  • a diffusion coefficient of the first coating layer 17 may be about 1.001 cm/sec to about 2.500 cm/sec, and a diffusion coefficient of the second coating 18 may be about 0.070 cm/sec to about 1.000 cm/sec, and within this range, the fire-safe function of the cigarette may further improve and the deterioration of the cigarette taste may be further prevented.
  • the porosity of the base paper of the cigarette 19 may be equal to or less than about 85 cu, the thickness of the base paper may be about 30 micrometers to about 60 micrometers, and the basis weight of the base paper may be about 15 g/m 2 to about 40 g/ m 2 .
  • a weight ratio of the coating composition to the entire weight of the cigarette paper 19 and the coating composition may be equal to or less than about 40 wt%.
  • the coating composition may include various kinds of materials such as starch.
  • a cigarette is manufactured the same as a cigarette of The One Blue, excluding that the first coating layer 17 and the second coating layer 18 are formed on the cigarette paper.
  • a coating layer is not formed on a cigarette paper of the cigarette of The One Blue.
  • the porosity of the cigarette paper is about 60 cu.
  • the first coating layer 17 and the second coating layer 18 are disposed on the cigarette paper.
  • a distance a1 which the first coating layer 17 is far from an end portion of the cigarette 1 is about 15 mm
  • a distance a2 which the second coating layer 18 is far from an end portion of the tipping paper 29 is about 10 mm.
  • a distance a3 between the first coating layer 17 and the second coating layer 18 is about 21 mm.
  • Widths of the first coating layer 17 and the second coating layer 18 are about 5 mm and about 6 mm, respectively, and basis weights of the first coating layer 17 and the second coating layer 18 are about 0.8 g/m 2 and about 4.7 g/m 2 , respectively. Diffusion coefficients of the first coating layer 17 and the second coating layer 18 are about 2.138 cm/sec and about 0.105 cm/sec. A base paper of the cigarette of The One Blue has about 26 g/m 2 of basis weight.
  • a cigarette is manufactured the same as a cigarette of The One Blue which the porosity of the cigarette paper is about 60 cu.
  • a cigarette is manufactured the same as a cigarette of The One Blue, excluding that a low ignition propensity cigarette paper with about 80 cu of the porosity is used.
  • the first coating layer 17 and the second coating layer 18 are disposed on the cigarette paper.
  • a distance a1 which the first coating layer 17 is far from an end portion of the cigarette 1 is about 10 mm
  • a distance a2 which the second coating layer 18 is far from an end portion of the tipping paper 29 is about 10 mm.
  • a distance a3 between the first coating layer 17 and the second coating layer 18 is about 20 mm.
  • Widths of the first coating layer 17 and the second coating layer 18 are about 6 mm, and basis weights of the first coating layer 17 and the second coating layer 18 are about 3.1 g/m 2 . Diffusion coefficients of the first coating layer 17 and the second coating layer 18 are about 0.105 cm/sec.
  • Example 1 Referring to Table 1, the cigarette of Example 1 and the cigarettes of Comparative Examples 1 and 2 are similar to each other.
  • Cigarette combustion strength of cigarettes manufactured in Example 1, Comparative Examples 1 and 2 is measured and shown in Table 2.
  • the combustion strength is based on ASTM E 2187-04.
  • the combustion strength is measured repeatedly as 40 times, and ratios of cigarettes extinguished before about 8 mm from an end portion of the cigarette filter are measured. As the ratio (%) of the extinguished cigarettes is high, the combustion strength is large.
  • Table 2 [Table 2] Nos. of cigarettes Full extinguishing Full combustion Example 1 40 40 (100%) 0 Comparative Example 1 40 0 40 (100%) Comparative Example 2 40 40 (100%) 0
  • the combustion strength of the cigarette in Example 1 is greater than the combustion strength of the cigarette in Comparative Example 1.
  • the combustion strength of the cigarette in Example 1 is similar to the combustion strength of the cigarette in Comparative Example 2, although the amount of oxygen inflow of the first coating layer 17 in Example 1 increases.
  • Example 1 and Comparative Example 1 tastes of cigarettes manufactured in Example 1 and Comparative Example 1 are evaluated by 20 panels and shown in FIG. 4
  • tastes of cigarettes manufactured in Example 1 and Comparative Example 2 are evaluated by 20 panels and shown in FIG. 5 .
  • the cigarette of Example 1 is similar to the cigarette of Comparative Example 1 in regards of abundant smoking amount, tobacco taste strength, irritation, off-flavor when smoking at a band, and a total tobacco taste.
  • a taste of the cigarette of Example 1 improves because the cigarette of Example 1 has less off-flavor when smoking at a band than the cigarette of Comparative Example 2.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)
EP12886172.1A 2012-10-09 2012-12-05 Low ignition propensity cigarette paper and cigarette including the same Active EP2906056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20120111586A KR101480506B1 (ko) 2012-10-09 2012-10-09 저발화성 궐련지 및 이를 포함하는 담배
PCT/KR2012/010458 WO2014058102A1 (en) 2012-10-09 2012-12-05 Low ignition propensity cigarette paper and cigarette including the same

Publications (3)

Publication Number Publication Date
EP2906056A1 EP2906056A1 (en) 2015-08-19
EP2906056A4 EP2906056A4 (en) 2016-07-06
EP2906056B1 true EP2906056B1 (en) 2017-06-14

Family

ID=50477553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12886172.1A Active EP2906056B1 (en) 2012-10-09 2012-12-05 Low ignition propensity cigarette paper and cigarette including the same

Country Status (6)

Country Link
US (1) US20150257438A1 (ko)
EP (1) EP2906056B1 (ko)
JP (1) JP6091626B2 (ko)
KR (1) KR101480506B1 (ko)
RU (1) RU2596460C1 (ko)
WO (1) WO2014058102A1 (ko)

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DE102013114012B3 (de) * 2013-12-13 2014-12-11 Delfortgroup Ag Umhüllungsmaterial für Rauchartikel mit richtungsabhängiger Diffusionskapazität
PL2898784T3 (pl) * 2014-01-24 2018-11-30 Reemtsma Cigarettenfabriken Gmbh Papieros z filtrem
USD754921S1 (en) * 2014-08-14 2016-04-26 John Breaton Chaisty Holder for cigarette paper
KR20170109364A (ko) * 2016-03-21 2017-09-29 주식회사 케이티앤지 저 발화성 궐련지의 코팅 위치 보정 장치 및 방법
KR102402062B1 (ko) * 2020-01-03 2022-05-24 주식회사 케이티앤지 곡물 허스크가 함유된 흡연물질 래퍼와 이를 포함하는 흡연물품, 및 상기 흡연물품의 제조 방법
CN113944170A (zh) 2021-11-02 2022-01-18 浙大城市学院 一种地铁车站深基坑围护结构的施工设备
CN113944151A (zh) 2021-11-02 2022-01-18 浙大城市学院 一种渠式切割装配式地下连续墙施工设备及施工方法
CN114720529B (zh) * 2022-04-19 2024-08-09 浙江中烟工业有限责任公司 燃吸卷烟燃烧锥周围氧气浓度的检测方法及系统

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Also Published As

Publication number Publication date
KR20140045632A (ko) 2014-04-17
EP2906056A4 (en) 2016-07-06
JP6091626B2 (ja) 2017-03-08
WO2014058102A1 (en) 2014-04-17
KR101480506B1 (ko) 2015-01-08
US20150257438A1 (en) 2015-09-17
RU2596460C1 (ru) 2016-09-10
JP2015532367A (ja) 2015-11-09
EP2906056A1 (en) 2015-08-19

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