EP2071965B1 - Article à fumer avec des caractéristiques d'extinction améliorées - Google Patents

Article à fumer avec des caractéristiques d'extinction améliorées Download PDF

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Publication number
EP2071965B1
EP2071965B1 EP07400034A EP07400034A EP2071965B1 EP 2071965 B1 EP2071965 B1 EP 2071965B1 EP 07400034 A EP07400034 A EP 07400034A EP 07400034 A EP07400034 A EP 07400034A EP 2071965 B1 EP2071965 B1 EP 2071965B1
Authority
EP
European Patent Office
Prior art keywords
wrapper
smoking article
article according
inorganic salt
anyone
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
EP07400034A
Other languages
German (de)
English (en)
Other versions
EP2071965A1 (fr
Inventor
Thomas Pienemann
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.)
Reemtsma Cigarettenfabriken GmbH
HF and PhF Reemtsma GmbH and Co
Original Assignee
Reemtsma Cigarettenfabriken GmbH
HF and PhF Reemtsma GmbH and 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
Priority to DE602007010653T priority Critical patent/DE602007010653D1/de
Application filed by Reemtsma Cigarettenfabriken GmbH, HF and PhF Reemtsma GmbH and Co filed Critical Reemtsma Cigarettenfabriken GmbH
Priority to PL07400034T priority patent/PL2071965T3/pl
Priority to EP07400034A priority patent/EP2071965B1/fr
Priority to PT07400034T priority patent/PT2071965E/pt
Priority to AT07400034T priority patent/ATE488147T1/de
Priority to ES07400034T priority patent/ES2353581T3/es
Priority to CA2709427A priority patent/CA2709427A1/fr
Priority to EP08802630A priority patent/EP2227101A1/fr
Priority to PCT/EP2008/008168 priority patent/WO2009080136A1/fr
Priority to AU2008340831A priority patent/AU2008340831B2/en
Priority to US12/340,322 priority patent/US20090159090A1/en
Publication of EP2071965A1 publication Critical patent/EP2071965A1/fr
Application granted granted Critical
Publication of EP2071965B1 publication Critical patent/EP2071965B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • 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
    • A24D1/022—Papers for roll-your-own 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
    • 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
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64—Inorganic compounds
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper

Definitions

  • the invention relates to a smoking article (claim 1) with improved extinguishing characteristics (reduced or lower ignition propensity or ignition proclivity), to a method of manufacturing such a smoking article (claim 10), to a wrapper (claim 15) and to a wrapper tube (claim 16).
  • the ignition propensity of cigarettes can be measured by a standardized test method. Usually, the test defined in ASTM E 2187-04 is performed (ASTM: “American Standard for Testing and Materials”; ASTM E 2187: “Standard Test Method for Measuring the Ignition Strength of Cigarettes”; the extension "-04” refers to 2004 as the year of the last revision). According to ASTM E 2187-04, a sample of 40 cigarettes is tested under well-defined conditions, and the fraction of these cigarettes which burn their full length is called “the test result”. A safety standard specifies which test result is acceptable. For example, in Canada and some U.S. states, the acceptable test result is 25%, i.e. at least 75% of the cigarettes have to extinguish before burning their full length in order to comply with the safety standard.
  • a general disadvantage of using low-porosity bands on wrapper papers is a reduced rod ventilation caused by the reduced porosity in these bands, resulting in changes of CO/NFDPM ratios to often undesired levels (CO: carbon monoxide, NFDPM: nicotin-free dry particulate matter).
  • inorganic salts as burn retardants is commonly known, including some applications for tobacco products.
  • Inorganic salts as such have not been used for reducing ignition propensity, which is probably based on the assumption that a certain oxygen deficit is necessary to make cigarettes self-extinguish in the ASTM test cited above and that this can only be achieved by reducing the wrapper porosity to a level lower than 10 CU to 15 CU (CU: Coresta unit, permeability as measured in the tobacco industry, see CORESTA Recommend Method No. 40).
  • the object of the invention is to provide a smoking article with reduced ignition propensity, which does not exhibit the disadvantage of a significantly reduced rod ventilation.
  • Claim 10 relates to a method of manufacturing such an article.
  • Claims 15 and 16 relate to a wrapper for rolling cigarettes and to a wrapper tube for making cigarettes, respectively, which have a reduced ignition propensity.
  • Advantageous embodiments of the invention emerge from the dependent claims.
  • the smoking article according to the invention comprises a tobacco rod and a wrapper.
  • the wrapper includes at least one zone treated with an inorganic salt providing reduced ignition propensity. This zone can comprise the total wrapper.
  • the wrapper includes at least one discrete zone treated with the inorganic salt, wherein the total surface area of the discrete zones is smaller than the total surface area of the wrapper; i.e. in addition to any areas of the wrapper being covered by, e.g., a tipping paper of a filter, there are exposed areas of the wrapper which are not treated with the inorganic salt.
  • inorganic salts is able to reduce the ignition propensity of the smoking article without reducing the porosity of the wrapper to levels as commonly required for this purpose.
  • the invention does not rely on the main effect of a reduced porosity in the zones treated with the inorganic salt.
  • the porosity of the wrapper in the treated zones is larger than 10 CU, preferably larger than 12 CU or than 15 CU. Porosities in this range permit access of sufficient oxygen to the tobacco rod in order to minimise carbon monoxide formation and provide for sufficient diffusion.
  • the inorganic salt can comprise, e.g., magnesium chloride, aluminium sulfate, alum, sodium tetraborate, hydrated magnesium chloride, hydrated aluminium sulfate, hydrated alum, hydrated sodium tetraborate, sodium chloride, or mixtures thereof.
  • the specific amount of the organic salt can be in the range of from 0.2 mg/cm 2 to 20 mg/cm 2 or in the range of from 0.5 mg/cm 2 to 5 mg/cm 2 .
  • any interval limits in the range of from 0.2 mg/cm 2 to 20 mg/cm 2 are explicitly disclosed herewith.
  • Such inorganic salts are less expensive than porosity-reducing agents like alginates.
  • the wrapper comprises at least two such bands which are separated by at least 1 mm or at least 5 mm and preferably by at least 10 mm.
  • the smoking article comprises a filter
  • the smoking article can be designed as a cigarette
  • the wrapper is a cigarette paper (which includes the possibility of manufacturing the wrapper from reconstituted tobacco).
  • wrapper cigarettes for rolling cigarettes
  • wrapper tube preferably a paper tube including a filter at one of its ends
  • MYO cigarettes MYO: "Make Your Own”
  • the wrapper paper and the wrapper tube comprise, with respect to reduced ignition propensity, the features of the wrapper of a smoking article explained so far.
  • a smoking article according to the invention in particular of applying the inorganic salts to the wrapper. These methods can be applied to a paper for rolling cigarettes or to a paper tube for making cigarettes in an analogue way.
  • the inorganic salt is applied to the wrapper by means of a solution or suspension.
  • a solution or suspension can be heated.
  • the solvent or the suspension agent comprise water.
  • the inorganic salt can be applied to the wrapper by, e.g., printing techniques like gravure printing or inkjet printing, but also techniques like spraying or sizing. Printing techniques are very precise and can even be used online, e.g., in a cigarette making process after wrapping a continuous tobacco rod with the wrapper material.
  • the inorganic salt can be applied to the wrapper by sizing in a papermaking process for providing the material of the wrapper.
  • sizing is applied to the overall surface of the paper produced in a papermaking process, it is also possible to size zones of the paper only.
  • the inorganic salt is applied to the wrapper immediately after a papermaking process during the cutting step of a mother reel into bobbins containing wrapper material, as usually performed in the cigarette paper industry in order to provide wrapper material suitable for use in a cigarette making machine.
  • the inorganic salt can be applied to the wrapper material during a rewinding step of such bobbin. This step is performed offline, i.e. not during the usual operating steps of a cigarette making machine.
  • inorganic salt to the wrapper during a cigarette making process, i.e. online, either before wrapping a continuous tobacco rod with the wrapper material or after wrapping a continuous tobacco rod with the wrapper material.
  • gravure printing and inkjet printing which apply a solution or suspension of the inorganic salt as "ink”, are particularly suitable.
  • a commercial cigarette comprising a cigarette paper with a base porosity of 35 CU was homogeneously treated with an aqueous solution of sodium chloride until a weight of 4.0 mg sodium chloride per cm 2 was achieved.
  • the outer side (“felt side”) of a commercial cigarette paper (base porosity 35 CU) was sprayed with an aqueous solution of magnesium chloride to form treated discrete zones in band form of 6 mm width with a distance (gap width) of 20 mm on the paper.
  • the concentration of the solution and the amount of spraying were adjusted so that a weight of 1.2 mg magnesium chloride per cm 2 was achieved.
  • the inner side ("wire side") or both sides of the cigarette paper could be sprayed with the solution.
  • a warm (50°C), saturated solution of aluminium sulfate was applied to the cigarette paper (porosity 50 CU) of a conventional cigarette during the cigarette making process using a gravure printing device.
  • the gravure depth was adjusted so that a weight of 3 mg aluminium sulfate per cm 2 was achieved in the printed areas.
  • the salt was applied in band-shaped discrete zones having a width of 6 mm each and a respective distance (width of untreated zones) of 20 mm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Paper (AREA)

Claims (16)

  1. Article à fumer, comprenant un boudin de tabac et une enveloppe, dans lequel l'enveloppe comporte au moins une zone traitée avec un sel inorganique assurant une tendance réduite à l'inflammation, caractérisé en ce que la porosité de l'enveloppe dans la/les zones traitées, par suite dudit traitement, reste supérieure à 10 unités Coresta CU.
  2. Article à fumer selon la revendication 1, caractérisé en ce que la porosité de l'enveloppe dans la/les zones traitées est supérieure à 12 CU ou 15 CU.
  3. Article à fumer selon la revendication 1 ou la revendication 2, caractérisé en ce que le sel inorganique est composé d'au moins une substance choisie dans le groupe comprenant le chlorure de magnésium, le sulfate d'aluminium, l'alun, le tétraborate de sodium, le chlorure de magnésium hydraté, le sulfate d'aluminium hydraté, l'alun hydraté, le tétraborate de sodium hydraté, le chlorure de sodium.
  4. Article à fumer selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la quantité spécifique du sel inorganique dans la/les zones traitées de l'enveloppe est de 0,2 mg/cm2 à 20 mg/cm2, de préférence de 0,5 mg/cm2 à 5 mg/cm2,
  5. Article à fumer selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'enveloppe comporte au moins une zone discrète traitée avec le sel inorganique, la superficie totale des zones discrètes étant plus petite que la superficie totale de l'enveloppe.
  6. Article à fumer selon la revendication 5, caractérisé en ce que les zones discrètes sont organisées en bandes s'étendant sur le pourtour de l'article à fumer et ayant une largeur, mesurée sur l'axe du boudin de tabac, de 2 mm à 12 mm, de préférence de 2 mm à 8 mm, de préférence surtout de 6 mm.
  7. Article à fumer selon la revendication 6, caractérisé en ce que l'enveloppe comporte au moins deux zones discrètes, deux zones discrètes voisines étant séparées d'au moins 1 mm, de préférence d'au moins 10 mm.
  8. Article à fumer selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend un filtre.
  9. Article à fumer selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il s'agit d'une cigarette, l'enveloppe étant du papier à cigarettes.
  10. Procédé de fabrication d'un article à fumer selon l'une quelconque des revendications 1 à 9, comprenant une étape caractérisée en ce que le sel organique est appliqué sur l'enveloppe à l'aide d'une solution ou d'une suspension.
  11. Procédé selon la revendication 10, caractérisé en ce que la solution est chauffée afin d'améliorer la solubilité du sel organique.
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce que le solvant ou l'agent de suspension, respectivement, est composé d'eau.
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que le sel inorganique est appliqué sur l'enveloppe à l'aide d'une des techniques suivantes : impression hélio, impression par jet d'encre, pulvérisation.
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce que le sel inorganique est appliqué en continu sur l'enveloppe durant un processus de fabrication de cigarettes, avant l'enveloppement d'un boudin de tabac continu avec le matériau enveloppant.
  15. Enveloppe pour rouler des cigarettes, l'enveloppe comportant les caractéristiques de l'enveloppe d'un article à fumer selon l'une quelconque des revendications 1 à 9, l'enveloppe se présentant sous la forme de papier.
  16. Tube enveloppant, comprenant de préférence un filtre, pour fabriquer des cigarettes en remplissant de tabac le tube enveloppant, le tube enveloppant comportant les caractéristiques de l'enveloppe d'article à fumer selon l'une quelconque des revendications 1 à 9, et le tube enveloppant se présentant sous la forme d'un tube en papier.
EP07400034A 2007-12-20 2007-12-20 Article à fumer avec des caractéristiques d'extinction améliorées Active EP2071965B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
PL07400034T PL2071965T3 (pl) 2007-12-20 2007-12-20 Wyrób do palenia o ulepszonych właściwościach gaszenia
EP07400034A EP2071965B1 (fr) 2007-12-20 2007-12-20 Article à fumer avec des caractéristiques d'extinction améliorées
PT07400034T PT2071965E (pt) 2007-12-20 2007-12-20 Artigo de fumar com características melhoradas de extinção
AT07400034T ATE488147T1 (de) 2007-12-20 2007-12-20 Rauchware mit verbesserten auslöscheigenschaften
ES07400034T ES2353581T3 (es) 2007-12-20 2007-12-20 Artículo para fumar con características de extinción mejorada.
DE602007010653T DE602007010653D1 (de) 2007-12-20 2007-12-20 Rauchware mit verbesserten Auslöscheigenschaften
CA2709427A CA2709427A1 (fr) 2007-12-20 2008-09-25 Article a fumer presentant des caracteristiques d'extinction ameliorees
EP08802630A EP2227101A1 (fr) 2007-12-20 2008-09-25 Article à fumer présentant des caractéristiques d'extinction améliorées
PCT/EP2008/008168 WO2009080136A1 (fr) 2007-12-20 2008-09-25 Article à fumer présentant des caractéristiques d'extinction améliorées
AU2008340831A AU2008340831B2 (en) 2007-12-20 2008-09-25 Smoking article with improved extinguishing characteristics
US12/340,322 US20090159090A1 (en) 2007-12-20 2008-12-19 Smoking article with improved extinguishing characteristcs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07400034A EP2071965B1 (fr) 2007-12-20 2007-12-20 Article à fumer avec des caractéristiques d'extinction améliorées

Publications (2)

Publication Number Publication Date
EP2071965A1 EP2071965A1 (fr) 2009-06-24
EP2071965B1 true EP2071965B1 (fr) 2010-11-17

Family

ID=39422005

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07400034A Active EP2071965B1 (fr) 2007-12-20 2007-12-20 Article à fumer avec des caractéristiques d'extinction améliorées
EP08802630A Withdrawn EP2227101A1 (fr) 2007-12-20 2008-09-25 Article à fumer présentant des caractéristiques d'extinction améliorées

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08802630A Withdrawn EP2227101A1 (fr) 2007-12-20 2008-09-25 Article à fumer présentant des caractéristiques d'extinction améliorées

Country Status (10)

Country Link
US (1) US20090159090A1 (fr)
EP (2) EP2071965B1 (fr)
AT (1) ATE488147T1 (fr)
AU (1) AU2008340831B2 (fr)
CA (1) CA2709427A1 (fr)
DE (1) DE602007010653D1 (fr)
ES (1) ES2353581T3 (fr)
PL (1) PL2071965T3 (fr)
PT (1) PT2071965E (fr)
WO (1) WO2009080136A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023067332A1 (fr) * 2021-10-20 2023-04-27 Nicoventures Trading Limited Article ayant des propriétés de retardement de combustion et ses utilisations

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013329037B2 (en) 2012-10-11 2016-10-13 Schweitzer-Mauduit International, Inc. Wrapper having reduced ignition proclivity characteristics
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
US10292419B1 (en) * 2014-04-11 2019-05-21 Enrique Fernando Sanchez Icaza Cigar lock and rolling method
NL2022211B1 (en) 2018-12-14 2020-07-03 B V Deli Htl Tabak Mij A hollow rod made from a homogenized tobacco material.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023067332A1 (fr) * 2021-10-20 2023-04-27 Nicoventures Trading Limited Article ayant des propriétés de retardement de combustion et ses utilisations

Also Published As

Publication number Publication date
AU2008340831A1 (en) 2009-07-02
EP2071965A1 (fr) 2009-06-24
ATE488147T1 (de) 2010-12-15
AU2008340831B2 (en) 2013-05-16
WO2009080136A1 (fr) 2009-07-02
EP2227101A1 (fr) 2010-09-15
PT2071965E (pt) 2011-02-03
CA2709427A1 (fr) 2009-07-02
ES2353581T3 (es) 2011-03-03
PL2071965T3 (pl) 2011-04-29
DE602007010653D1 (de) 2010-12-30
US20090159090A1 (en) 2009-06-25

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