EP1843670B1 - Filtercigarette - Google Patents

Filtercigarette Download PDF

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Publication number
EP1843670B1
EP1843670B1 EP06700443A EP06700443A EP1843670B1 EP 1843670 B1 EP1843670 B1 EP 1843670B1 EP 06700443 A EP06700443 A EP 06700443A EP 06700443 A EP06700443 A EP 06700443A EP 1843670 B1 EP1843670 B1 EP 1843670B1
Authority
EP
European Patent Office
Prior art keywords
filter
cigarette
anyone
gas phase
tobacco
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.)
Revoked
Application number
EP06700443A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1843670A1 (de
Inventor
Gunther Peters
Paul-Georg Henning
Thomas Pienemann
Henning Seidel
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36102730&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1843670(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reemtsma Cigarettenfabriken GmbH, HF and PhF Reemtsma GmbH and Co filed Critical Reemtsma Cigarettenfabriken GmbH
Priority to PL06700443T priority Critical patent/PL1843670T3/pl
Priority to SI200631466T priority patent/SI1843670T1/sl
Publication of EP1843670A1 publication Critical patent/EP1843670A1/de
Application granted granted Critical
Publication of EP1843670B1 publication Critical patent/EP1843670B1/de
Revoked 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
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters

Definitions

  • the invention relates to a filter cigarette.
  • the smoke of cigarettes is composed of a particle and a gas phase.
  • Many commonly used filters filter the smoke with cellulose acetate.
  • the gas phase is often not lowered to a satisfactory extent, so often other design features are adjusted. For example, it is common to provide cigarettes with a relatively high ventilation, which causes the gas phase to be additionally diluted with air.
  • Another possibility of additional gas phase reduction is the use of gas phase-active, that is reducing the gas phase, substances in the filter.
  • gas phase-active that is reducing the gas phase, substances in the filter.
  • Filter cigarettes are known from the prior art, which influence the tobacco smoke with the aid of gas-phase-active substances in such a way that the amount of gas phase in the mainstream smoke inhaled by the smoker is reduced.
  • filter cigarettes are on the market whose gas phase values are reduced by the addition of gas phase active substances, such as activated carbon.
  • gas phase active substances such as activated carbon.
  • Activated carbon filters in which the activated carbon is introduced into a chamber be have been used for a long time and especially in Japan and are from the WO 02/37990 A2 or known from other documents such as the DE 42 056 58 A1 or the WO 00/49901 A1 ,
  • the filter consists of a filter segment with activated carbon and a filter segment with ion exchange resins and optionally a mouth-side filter segment of cellulose acetate. Comparable cigarettes are in the WO 03/015544 A1 and the WO 2004/103099 A2 described.
  • Gas phase reduction is also influenced by the combination of the design parameters of a filter cigarette, which includes not only the filter additives, but also the nature of the tobacco, the wrapping material and the filter components.
  • the gas phase is not lowered to a satisfactory extent.
  • the values for the total gas phase content G ges are more than 1200 ⁇ g / cigarette, measured according to ISO.
  • a further disadvantage is that conventional gas-phase active cigarette filters lose their effectiveness after a certain storage time.
  • the cigarettes of the prior art are often added further substances either in the tobacco mixture or in the filter, such as palladium to tobacco as in the WO 02/37990 A1 ,
  • the disadvantage here is the high costs and difficult manufacturing conditions.
  • WO 02/069745 A1 discloses a cigarette with a multi-component filter.
  • the filter ventilation in this cigarette is in the range of 40% to 60%, in particular 45% to 55%, and the NFDPM value in the range of 4 to 10 mg.
  • the object of the invention is to provide a filter cigarette with a significant gas phase reduction of the tobacco smoke. This gas phase reduction should also be given under so-called intense smoking conditions (see below).
  • the gas phase efficiency of the filter should be as long as possible, e.g. the period of storage of cigarettes, be constant or at least only slightly change.
  • the filter cigarette according to the invention has a tobacco rod, a filter and a wrapper (preferably made of cigarette paper, filter wrapping paper and tipping paper).
  • the filter contains a filter material matrix with gas phase reducing substances.
  • the tobacco of the tobacco rod is preferably made of an American Blend blend or a Virginia blend.
  • the tobaccos of the tobacco blend are preferably with an additive content below 1% non-volatile fractions, based on the tobacco dry matter; most preferably no additives are used.
  • the tobaccos are preferably selected so that the TSNA content (TSNA: tobacco-specific nitrosamines) of the total mixture is less than 2 ⁇ g / g tobacco. It is even more advantageous if the content of TSNA in the tobacco is below 1 ⁇ g / g of tobacco.
  • the tobacco may contain additives or additives such as casing, flavorings, humectants, sugar, cocoa, liquorice, menthol.
  • the cigarette paper surrounding the tobacco rod is preferably porous and has a porosity of more than 40 CU (Coresta Units) or more than 60 CU. To achieve particularly low NFDPM values (see below) in the range of 4-7 mg / cigarette, the porosity is preferably greater than 300 CU.
  • the naturally porous cigarette paper can additionally be electro-perforated, mechanically perforated or laser-perforated.
  • the cigarette paper preferably contains a relatively high mullet salt content to lower the CO content in the smoke.
  • Usual Glimmsalzmengen are at 0.7%. Glimmsalzmengen of 1.3% or more, preferably 2% are used according to the invention. Preferably, sodium / potassium citrates are used.
  • the basis weight of the cigarette paper is preferably lower than conventional comparable cigarettes and is 22 g / m 2 .
  • the filter may for example consist of one, two, three, four or five filter sections and preferably has two filter sections. If the filter has more than one filter section, a filter section is preferably arranged on the mouth side, which does not contain any substances which reduce the gas phase. Different gas phase reducing substances can be introduced in one or in different filter parts. In the case of several filter parts, these can be arranged longitudinally one behind the other or else arranged coaxially.
  • the filter material (the matrix and others) contains, for example, cellulose, cellulose derivatives (preferably cellulose acetate), polymers such as polyolefins (polypropylene, polyethylene), polyesters or mixtures thereof.
  • the filter material consists for example of fibers, tow, paper, fabric web, non-woven, nonwoven, extrudate, foam.
  • the filter material is preferably crimped, treated and / or treated with further filter additives, such as e.g. Catalysts or flavoring additives, e.g. Flavors or sugars.
  • further filter additives such as e.g. Catalysts or flavoring additives, e.g. Flavors or sugars.
  • the gas phase reducing substances are incorporated (e.g., interspersed or by an airlaid method) into a filter material matrix in an amount of at least 75 mg per filter and at least 5 mg / mm length of the gas phase active filter part.
  • gas phase reducing substances for example, activated carbon, alumina, aluminum hydroxide, ion exchangers (preferably ion exchange resins), molecular sieves, silica gel, natural or synthetic minerals such as magnesium silicate, alumina, zeolites, bentonites, kieselguhr or meerschaum can be used.
  • the gas phase reducing substances which are introduced into the filter preferably have a high surface area in the range of more than 1000 m 2 / g, preferably 1000-1200 m 2 / g measured by BET method and / or a CCl 4 uptake of 60%. 70% based on the weight of the gas phase reducing substance.
  • the filter wrapping paper envelops the filter parts. It can be porous or nonporous.
  • the tipping paper or wrapping paper connects the filter to the tobacco rod. It can be either naturally porous, mechanically or electroperforated or laser perforated.
  • the filter is preferably laser-perforated online, that is, during cigarette manufacture after the filter is attached to the tobacco rod.
  • the filter ventilation is between 0% and 30% and is preferably between 10% and 25%. In other embodiments, the filter ventilation is in the range of 30% to 70%, preferably in the range of 30% to 60%.
  • the gas phase of cigarette smoke is a complex mixture of permanent gases such as N 2 and CO 2 and a variety of light and medium volatile compounds. Some of these components are associated with the health effects of smoking. For example, formaldehyde, hydrocyanic acid and benzene are mentioned in the warning texts prescribed for Germany on cigarette packs.
  • gas phase reducing substances such as e.g. Activated carbon
  • adsorbents such as e.g. Activated carbon
  • the content of permanent gases, e.g. CO remains largely unchanged.
  • a measure was to be found that describes the effectiveness of such adsorbents as unaffected as possible by other design features.
  • the gas phase is specifically influenced such that the ratio Q 1 is below the values measured for commercial cigarettes, namely below 1.5, measured according to ISO smoking conditions.
  • Q2 is preferably below 3, measured after intense smoking conditions.
  • Intense smoking conditions are in accordance with the Health Canada Official Method T-115, "Determination of Tar, Nicotine and Carbon Monoxide in Mainstream Tobacco Smoke", conditions as set forth in Section 14 (6) (b) (modified conditions ) of the Canadian Federal Tobacco Regulations.
  • This method uses an increased draft volume (55 ml / 2 seconds) and a reduced draft break (28 seconds) with full coverage of the filter ventilation zone, see http://www.hc-sc.gc.ca/hecs-sesc/tobacco/pdf/T-115e4.pdf.
  • Cytotoxicity was determined for the examples below according to the method presented at the Coresta Congress New La 2002 (Röper, W., Wieczorek, R .: In-vitro cytotoxicity of cigarette mainstream smoke. smoke aerosol exposure).
  • the tests were performed with HEP-G2 cells (human hepatocellular carcinoma).
  • serum-free medium was prepared with the gas phase of the cigarettes according to the invention. The cells were incubated with this medium for 65 h. Subsequently, proliferation tests were carried out and EC50 values were determined.
  • EC50 is the effective concentration of a substance or mixture that causes 50% growth inhibition of cells.
  • NRU test In the Neutral Red Uptake Cytotoxicity Assay (NRU) test, proliferation is measured based on the membrane activity of the living cells. NRU test protocols have been published by ECVAM, FRAME, CAAT, INVITOX, and IC-CVAM. The tests in the examples were after the INVITOX Protocol No. 64. (1992) "The neutral red cytotoxicity assay "Performed.
  • MTS test Oleen reagent's, Promega kit, cell proliferation assay
  • MTS test CellTiter 96 ® AQ ueous Non-Radioactive Cell Proliferation Assay (MTS) from Promega GmbH).
  • the determination of the gas phase components in the mainstream smoke of the filter cigarettes was carried out in the examples by means of GC-FID.
  • a 20-channel smoking machine from Borgwaldt (RM 20 / CS) was equipped with 20 cigarettes and a 92 mm glass fiber filter for separating the moisture condensate.
  • the test cigarettes were previously conditioned according to ISO 3402. 20 cigarettes were smoked according to ISO 3308, the wet condensate was deposited on the glass fiber filter and the gas phase was passed to the smoke machine pump.
  • a sampling valve defined traits were taken from different cigarettes for the subsequent analysis and collected in a glass jar.
  • GC-FID conditions were as follows: injector temperature 110 ° C; Split 80 ml / min .; Carrier gas helium, 1.7 ml / min .; Column 0.5 ⁇ m DB Wax 60 m ⁇ 0.32 mm; Temperature program: 20 ° C, 1 ° / min. up to 28 ° C; 2 ° C / min. up to 60 ° C; 20 ° / min. up to 110 ° C; Temperature FID 200 ° C.
  • Quantification was performed for the following gas phase components: isoprene, acetaldehyde, propionaldehyde, furan, i-butyraldehyde, acetone, acrolein, methylfuran, butanone, methanol, benzene, butenone, dimethylfuran, diacetyl, acetonitrile, hydrogen cyanide, and toluene.
  • the indication of the results is in ⁇ g of the respective gas phase component per cigarette. The measurement was carried out as a double determination.
  • the total gas phase G ges is the sum of the values of the gas phase components listed above.
  • NFDPM Nicotine free dry particulate matter; is commonly referred to as "tar” or condensate value.
  • the ratio of CO to NFDPM is less than 1.
  • the TSNA levels in the smoke are related to the NFDPM levels and are preferably below 15 ng / mg NFDPM, especially below 13 ng / mg NFDPM.
  • the NO content is preferably below 50 ⁇ g per cigarette.
  • the amount of the gas phase substances preferably represented as total gas phase G tot , is significantly reduced.
  • Ratios Q1 and Q2, representing the ratio of benzene to CO, are below the limits of 1.5 for Q1 (measured by ISO) and 3 for Q2 (measured after Intense).
  • the cytotoxicity of the gas phase is significantly lowered in the cigarette according to the invention both under ISO smoking conditions and under intense smoking conditions compared to conventional cigarettes.
  • the TSNA values in the smoke of the cigarettes according to the invention are low in comparison with conventional filter cigarettes, this applies both to ISO and to intense smoking conditions. They are preferably below 50% of the values of conventional filter cigarettes.
  • Example 1 For the variant in Example 1, a Virginia Blend tobacco blend was prepared without additives. As a comparison, a commercial cigarettes brand was examined with Virginia blend blend.
  • the tobacco rod was wrapped with a cigarette paper having a porosity of 50 CU and provided with a bleaching salt content of 1.3% sodium / potassium citrate and whose basis weight was 22 mg / m 2 .
  • the strand was followed by a two-part filter, in the strand-side filter part, 15 mm in length, 75 mg of activated carbon were introduced.
  • the mouth-side filter part was made of cellulose acetate.
  • the filter was surrounded by a filter wrap paper.
  • the tobacco rod was connected to the filter by a wrapping paper.
  • a filter ventilation of 25% was set.
  • Table 2 shows the values determined both for inventive and for the comparative cigarettes, which were fumigated either to ISO or intense conditions (CINT) with a covered ventilation zone.
  • the total gas phase G tot is significantly lower in the inventive cigarette than in the comparison.
  • Q1 is 1.4 below the desired limit 1.5 and Q2 is 2.5 below the desired limit 3.
  • the product according to the invention was compared in a field study with a commercially available product with similar nicotine, condensate and CO values. Fifty smokers first smoked the comparison product (commercial cigarette with comparable tobacco blend), then the product according to the invention for six weeks and finally the comparison product again for six weeks.
  • the subjects lived under everyday conditions, there were no restrictions on consumption and smoking behavior. Every three weeks, the subjects were examined for the levels of various biomarkers (metabolites of smoke constituents) in body fluids.
  • Example 2 For the version in Example 2, an American Blend tobacco blend was also made entirely without any additive. As a comparison, a commercial cigarette brand with American Blend mixture was examined.
  • the filter consisted of a pure cellulose acetate filter section and a 15 mm long strand section of cellulose acetate, into which 5 mg activated charcoal were introduced per mm, so that the filter contained a total of 75 mg activated charcoal.
  • the cigarette paper of the cigarette according to the invention had a porosity of 320 CU and a basis weight of 35 g / m 2 .
  • the mulled salt content for this version was 2.0% sodium / potassium citrate.
  • the filter was surrounded by a filter wrap paper.
  • the tobacco rod was connected to the filter by a wrapping paper.
  • Cigarettes according to Example 1 were stored for a period of 12 months. After 3 months, the gas phase values were re-determined under ISO smoking conditions. It was observed that the effectiveness of the cigarette filters remained largely stable with respect to the total gas phase G tot . The amount of the total gas phase after 3 months was only 3.6% more than the amount of the total gas phase determined on freshly prepared filter cigarettes. After 6 months another became Increase of only 4.1%. The decrease in effectiveness by less than 10% within 6 months is extremely beneficial. ⁇ u> Table 4 ⁇ / u> Example 3 0 3 months 6 months Total gas phase ug / cig 910 943 982
  • the cigarettes according to Example 4 correspond to the cigarettes according to Example 1.
  • the tobacco of the tobacco strand was selected so that the TSNA content was below 1 ⁇ g / g tobacco, namely 0.4 ⁇ g / g tobacco.
  • Table 5 ⁇ / u>
  • Example 4 Cigarette according to the invention comparison Abrauchnorm ISO ISO Tobacco chloride % 0.4 0.9 Tobacco nitrate % 0.2 0.5 Tobacco TSNA ug / g 0.4 1.1 variety of tobacco Virginia Virginia Smoke NO ul / Cig. 42,00 71.00 Smoke TSNA ng / cig. 65.0 142.0 Smoke TSNA ng / mg NFDPM 7.0 15.4
  • the smoke of the cigarettes according to example 1 was examined with regard to its TSNA values and NO values.
  • Table 5 are compared these values compared to a conventional cigarette.
  • the TSNA content in the smoke is 54% lower compared to the conventional cigarette.
  • test cigarettes of Examples 1 and 2 were smoked under both ISO and intense smoking conditions and the cytotoxicity of the gas phase was determined according to NRU and MTS tests.
  • EC50 values of the gas phases were determined.
  • the values of toxicity are given in percent decrease in toxicity relative to a commercially available comparison cigarette with comparable NFDPM values and comparable tobacco mixtures. It can be seen from the table that the cytotoxicity of the test cigarettes is significantly lower for all samples tested than for the corresponding comparison cigarettes.
  • the cigarettes were smoked according to ISO conditions and the gas phase was examined.
  • the cigarettes were also smoked in intense conditions and the gas phase examined. Under both smoking conditions, the cytotoxicity was significantly lower in the cigarettes according to the invention than in the comparison.
  • Example 2 toxicity ISO CINT ISO CINT Decrease in membrane toxicity (NRU) in% 45.0 47.0 95.0 72.0 Decrease in metabolic toxicity (MTS) in% 76.8 52.2 85.0 77.0
  • Example 6 For the version in Example 6, an American Blend tobacco blend was also made entirely without any additive. As a comparison, a commercial ultra-cigarette brand was examined.
  • the filter consisted of a pure cellulose acetate filter section and a 15 mm long strand section of cellulose acetate, into which 5 mg activated charcoal were introduced per mm so that the filter contained a total of 75 mg activated charcoal.
  • the cigarette paper of the cigarette according to the invention had a porosity of 50 CU and a basis weight of 22 g / m 2 .
  • the mulled salt content for this version was 1.3% sodium / potassium citrate.
  • the filter was surrounded by a filter wrap paper.
  • the tobacco rod was connected to the filter by a wrapping paper.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP06700443A 2005-02-01 2006-01-16 Filtercigarette Revoked EP1843670B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL06700443T PL1843670T3 (pl) 2005-02-01 2006-01-16 Papieros z filtrem
SI200631466T SI1843670T1 (sl) 2005-02-01 2006-01-16 Cigareta s filtrom

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005005175A DE102005005175A1 (de) 2005-02-01 2005-02-01 Filtercigarette
PCT/EP2006/000326 WO2006081931A1 (de) 2005-02-01 2006-01-16 Filtercigarette

Publications (2)

Publication Number Publication Date
EP1843670A1 EP1843670A1 (de) 2007-10-17
EP1843670B1 true EP1843670B1 (de) 2012-08-22

Family

ID=36102730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06700443A Revoked EP1843670B1 (de) 2005-02-01 2006-01-16 Filtercigarette

Country Status (20)

Country Link
US (1) US8439046B2 (da)
EP (1) EP1843670B1 (da)
JP (1) JP5161585B2 (da)
KR (1) KR101319697B1 (da)
CN (1) CN101150964B (da)
AU (1) AU2006209977B2 (da)
BR (1) BRPI0606759A2 (da)
CA (1) CA2596475C (da)
DE (1) DE102005005175A1 (da)
DK (1) DK1843670T3 (da)
ES (1) ES2391831T3 (da)
MX (1) MX2007009298A (da)
NZ (1) NZ556708A (da)
PL (1) PL1843670T3 (da)
PT (1) PT1843670E (da)
RU (1) RU2378959C2 (da)
SI (1) SI1843670T1 (da)
TW (1) TWI336247B (da)
UA (1) UA88351C2 (da)
WO (1) WO2006081931A1 (da)

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CN104307472B (zh) * 2014-10-17 2016-05-11 甘成模 一种用于香烟过滤嘴中改性分子筛及制备方法
CN104886769B (zh) * 2015-05-06 2018-01-30 湖北中烟工业有限责任公司 一种低焦油卷烟及其制备方法
US20170055575A1 (en) 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Material for use with apparatus for heating smokable material
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US20170055584A1 (en) 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Article for use with apparatus for heating smokable material
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DE102005005175A1 (de) 2005-02-01 2006-08-10 Reemtsma Cigarettenfabriken Gmbh Filtercigarette

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TW200638886A (en) 2006-11-16
CN101150964A (zh) 2008-03-26
CA2596475A1 (en) 2006-08-10
PT1843670E (pt) 2012-11-27
ES2391831T3 (es) 2012-11-30
CN101150964B (zh) 2011-06-08
DE102005005175A1 (de) 2006-08-10
AU2006209977B2 (en) 2011-04-07
JP5161585B2 (ja) 2013-03-13
CA2596475C (en) 2013-03-05
MX2007009298A (es) 2008-01-11
KR20070096027A (ko) 2007-10-01
DK1843670T3 (da) 2012-12-10
HK1107746A1 (en) 2008-04-18
UA88351C2 (en) 2009-10-12
WO2006081931A1 (de) 2006-08-10
US8439046B2 (en) 2013-05-14
AU2006209977A1 (en) 2006-08-10
KR101319697B1 (ko) 2013-10-17
SI1843670T1 (sl) 2012-12-31
NZ556708A (en) 2010-02-26
US20090020132A1 (en) 2009-01-22
EP1843670A1 (de) 2007-10-17
JP2008528011A (ja) 2008-07-31
RU2378959C2 (ru) 2010-01-20
BRPI0606759A2 (pt) 2009-07-14
PL1843670T3 (pl) 2013-01-31
TWI336247B (en) 2011-01-21
RU2007132877A (ru) 2009-03-10

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