EP1868457A1 - Filtre destine a la fumee du tabac - Google Patents

Filtre destine a la fumee du tabac

Info

Publication number
EP1868457A1
EP1868457A1 EP06707293A EP06707293A EP1868457A1 EP 1868457 A1 EP1868457 A1 EP 1868457A1 EP 06707293 A EP06707293 A EP 06707293A EP 06707293 A EP06707293 A EP 06707293A EP 1868457 A1 EP1868457 A1 EP 1868457A1
Authority
EP
European Patent Office
Prior art keywords
fibers
tobacco smoke
smoke filter
adsorbent
regenerated cellulose
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.)
Withdrawn
Application number
EP06707293A
Other languages
German (de)
English (en)
Inventor
Ludwig Riepert
Gunther Peters
Ragna Ortlepp
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
Application filed by Reemtsma Cigarettenfabriken GmbH, HF and PhF Reemtsma GmbH and Co filed Critical Reemtsma Cigarettenfabriken GmbH
Publication of EP1868457A1 publication Critical patent/EP1868457A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Definitions

  • the invention relates to a tobacco smoke filter and a smoking product with such a tobacco smoke filter.
  • tobacco smoke filters are used which, to increase the efficacy of adsorbents such as e.g. May contain activated carbon.
  • EP 0 532 329 A2 discloses a cigarette with a paper filter into which activated carbon has been introduced in the papermaking process.
  • EP 1 028 637 A1 discloses a tissue filter comprising activated carbon-containing paper.
  • EP 1 223 821 A1 describes a triple filter with three filter segments.
  • One of the segments is one with an active coal mixture filled Adsorberhimmmer, while a second segment contains activated carbon in a carbonized fabric (carbon cloth).
  • the manufacturing process for this filter material is complex and expensive, and the material is very difficult to bring into a usable form for a filter.
  • DE 199 17 614 A1 discloses a process for producing cellulosic shaped bodies, in particular fibers, which have a high adsorption capacity for polar molecules.
  • cellulose is dissolved in a water-containing tertiary amine oxide by a dry-wet extrusion process and extruded.
  • the solution is subjected to ion exchange, e.g. based on polystyrene or polyacrylate resin.
  • ion exchange e.g. based on polystyrene or polyacrylate resin.
  • a similar method is known from DE 100 53 359 A1.
  • neutral adsorbers such as activated carbon, carbonized styrene-divinyl copolymers, molecular sieves from the group of zeolites or silica gel are used to achieve adsorption of nonpolar molecules.
  • the fibers can be processed into papers, staple fibers or continuous fibers and used in smoke filters.
  • Lyocell fibers have already been used in cigarette filters.
  • WO 95/35044 A1 discloses cigarette filters with lyocell staple fibers, WO 95/24520 Al cigarette filters with crimped lyocell fibers, EP 0 731 651 A1 paper cigarette filters comprising lyocell fibers, and WO 95/35043 A1 Cigarettenfilter with entangled continuous lyocell filaments.
  • the illustrated tobacco smoke filters are cellulose-containing and therefore superior to the widespread cellulose acetate filters in terms of environmental friendliness and biodegradability.
  • the tobacco smoke filter according to the invention contains fibers which have regenerated cellulose (preferably lyocell fibers, viscose fibers and / or modal fibers) into which adsorbents have been introduced. According to the invention, more than one adsorbent is introduced into the fibers of the tobacco smoke filter and / or the tobacco smoke filter contains adsorbent between the fibers.
  • regenerated cellulose preferably lyocell fibers, viscose fibers and / or modal fibers
  • the tobacco smoke filter according to the invention allows a high loading with adsorbent, because on the one hand the regenerated cellulose fibers contain one adsorbent or more adsorbents and on the other hand adsorbent can also be provided between the fibers of the tobacco smoke filter. Because that's in the fibers introduced adsorbent is bound to the fibers, it is not released when handling the tobacco smoke filter as unwanted dust. If the amount of adsorbent between the fibers does not exceed a practical limit, the tobacco smoke filter will also hold the adsorbent between the fibers without causing soiling. On the other hand, if one were to try to introduce the entire amount of adsorbent which the tobacco smoke filter according to the invention can absorb between the fibers, adsorbent would trickle out during the handling of the tobacco smoke filter.
  • the invention also enables an optimal mixture or combination of selective adsorbents, as the adsorbents may be introduced in various ways bakrauchfilter in the TA (in the fibers, Zvi ⁇ rule the fibers).
  • bakrauchfilter in the TA
  • Zvi in the fibers
  • an improved reduction of the smoke components can be achieved.
  • the adsorption capacity (effectiveness) of the adsorbents is not permanently influenced by the production process of the fibers with regenerated cellulose, that is to say by the embedding in the fibers.
  • the regenerated cellulose fibers are preferably obtained from beech, hemp and / or flax fibers.
  • Regenerated cellulose e.g., lyocell
  • regenerated cellulose is environmentally friendly in the manufacturing process as compared to the cellulose acetate most commonly used in conventional filters.
  • the biodegradability of regenerated cellulose is also significantly better than that of cellulose acetate.
  • the tobacco smoke filter according to the invention is less expensive and less expensive to produce than conventional filters heavily loaded with adsorbents, for example the triple filter known from EP 1 223 821 A1.
  • the invention opens numerous possibilities to provide the tobacco smoke filter with different adsorbents.
  • two or more different types of adsorbents may be incorporated into the same type of regenerated cellulose fiber.
  • Mixed forms are also conceivable.
  • the tobacco smoke filter between the fibers can contain adsorbent, as already explained, wherein a mixture of adsorbents is possible.
  • the regenerated cellulose fibers may be in different forms in the tobacco smoke filter, e.g. as staple fibers or continuous fibers, but also already solidified in the form of nonwovens, fabrics or papers. Mixed forms are also possible.
  • Suitable adsorbents are numerous substances or classes of substances, e.g. Activated carbon, aluminum oxides, aluminum hydroxides, mixtures of aluminum oxide and silicon dioxide, aluminosilicates in oxide and / or hydroxide form, magnesium silicates, hydrotalcite, ion exchangers, ion exchange resins, molecular sieves, silica gels, natural minerals, synthetic minerals, clays, zeolites, bentonites, kieselguhr, meerschaum , Superadsorbentien and mixtures of such substances.
  • Superadsorbents (SAP) are polyacrylates, carbonated polyacrylates and starch-based adsorbents. Among others, aluminosilicates in oxide and / or hydroxide form are particularly preferred.
  • At least one smoke-influencing agent is present in fibers with regenerated cellulose.
  • the additive introduced are eg flavors, vitamins, catalysts or free-radical scavengers.
  • regenerated cellulose provides a simple way to equip the fibers in the preparation with the desired additives or the desired.
  • the tobacco smoke filter contains at least two nonwoven webs with regenerated cellulose fibers, the webs in the regenerated cellulose fibers having at least two different adsorbents.
  • the fleeces are preferably interconnected, e.g. by embossing, needling or water jet compression ("Hydroentangling").
  • at least one adsorbent may be present between the fibers in at least one of the nonwovens and / or between nonwoven layers.
  • the tobacco smoke filter comprises paper with a regenerated cellulose fibers in the paper raw material, wherein inserted in the fibers ⁇ adsorbent is introduced.
  • the paper may also be made with additional adsorbent in the pulp.
  • the tobacco smoke filter paper which contains as paper stock with at least one adsorbent loaded lyocell, preferably up to 75 wt .-% lyocell, based on the finished paper.
  • the lyocell fiber preferably contains up to 50% by weight of adsorbent.
  • the proportion of adsorbent, based on the total mass of the tobacco smoke filter, is preferably in the range of 20 wt .-% to 90 wt .-% or in the range of 50 wt .-% to 90 wt .-% and particularly preferably in the range of 50 Wt .-% to 70 wt .-%, whereby a high loading of the tobacco smoke filter is achieved with adsorbent.
  • the tobacco smoke filter contains only one segment, this segment has the features previously discussed.
  • Tobacco smoke filters with multiple segments according to the invention are also conceivable. In this case, at least one of the segments has the explained features; In addition, segments of conventional type may be present. Preferably, the segments have a common enclosure.
  • the tobacco smoke filter has an enclosure.
  • tobacco smoke filters according to the invention in non-enveloped form (for example with the addition of glue or refractory fiber portion (bicomponent fibers)) and e.g. to surround with paper only during assembly with cigarette strings.
  • cigarettes and cigarillos come into consideration.
  • paper sleeves which are provided at one end with a tobacco smoke filter according to the invention and in which cut tobacco can be introduced from the other end.
  • Lyocell fibers can be produced by the process described in DE 199 17 614 A1 and DE 100 53 359 A1 and in the process be loaded with adsorbent.
  • a staple fiber mixture consisting in equal parts of (a) lyocell staple fibers with a fiber length of about 6 mm, loaded with 50% by weight of "Siralox 40" (an alumosilicate sold by Sasol Ltd.), and (b) lyocell staple fibers having a fiber length of about 6 mm and loaded with 50% by weight HY zeolite , according to the method described in EP 1 354 522 A2, activated carbon granules were additionally added in an amount of 10 mg per mm filter length. After mixing in the air stream, a filter body of 7.8 mm in diameter was formed from this. Subsequently, the filter body was wrapped in paper and cut to filter rod length of 90 mm. The grain size of the activated carbon granules was 30 to 70 US mesh, which corresponds to a grain diameter of about 0.2 mm to 0.6 mm. The total charge of adsorbent in the filter was 17.5 mg per mm of filter length.
  • Two nonwovens were made from loaded lyocell staple fibers.
  • a nonwoven contained an adsorber load of 50% by weight "Siralox 40" (Sasol Ltd.) in the lyocell fibers used to make it.
  • the other nonwoven contained a load of 50 wt% HY zeolite in its fibers. After adding activated carbon granules to one of the two nonwoven layers, the two nonwovens were connected to one another by needling.
  • the composite material of the needled nonwovens was pleated on a paper filter machine from Burghart (Engl. "Embossed”, that is folded longitudinally) and formed into a filter body, which was then wrapped with paper and cut to pieces of Filterstabus.
  • the total charge of adsorbent in the filter was 17.5 mg per mm of filter length.
  • Lyocell staple fibers were loaded with 50% by weight of "Siralox 40" (Sasol Ltd.) and used as stock. Here, 75% of the pulp was represented by loaded lyocell fibers. In the further papermaking, 50% by weight activated carbon powder was added to the pulp. The paper produced in this way had a total adsorbent content of at least 60% by weight.
  • This paper was pleated on a Burghart paper filter machine ("embossed”, ie longitudinally folded) and formed into a filter body, which was then wrapped in paper and cut into pieces of filter rod length.
  • Such papers with lyocell staple fibers (proportion up to 75% loaded lyocell staple fiber, based on the total mass of the paper), which are loaded with up to 50 wt .-% adsorbent (also eg with activated carbon), achieve a particularly high total content of adsorbent (namely up to 70 wt .-% of adsorbent, eg activated carbon, based on the total mass of the paper), if - as in the example - the pulp adsorbent is added (eg up to 50 wt .-% activated carbon powder) ver).
  • Advantages are increased adsorbent content and increased condensate retention due to fibrillated lyocell fibers.
  • Lyocell staple fibers were coated with 50 wt% adsorbent ("Siralox

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

Filtre destiné à la fumée du tabac, qui contient des fibres comportant de la cellulose régénérée (par ex. Lyocell) dans laquelle un adsorbant a été introduit. Plus d'un adsorbant est introduit dans les fibres du filtre destiné à la fumée du tabac et / ou le filtre destiné à la fumée du tabac contient un adsorbant entre ses fibres. Un filtre destiné à la fumée du tabac de ce type permet d'obtenir une forte charge d'adsorbant.
EP06707293A 2005-04-15 2006-02-27 Filtre destine a la fumee du tabac Withdrawn EP1868457A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005017478A DE102005017478A1 (de) 2005-04-15 2005-04-15 Tabakrauchfilter
PCT/EP2006/001778 WO2006108470A1 (fr) 2005-04-15 2006-02-27 Filtre destine a la fumee du tabac

Publications (1)

Publication Number Publication Date
EP1868457A1 true EP1868457A1 (fr) 2007-12-26

Family

ID=36540265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06707293A Withdrawn EP1868457A1 (fr) 2005-04-15 2006-02-27 Filtre destine a la fumee du tabac

Country Status (5)

Country Link
US (1) US20080295852A1 (fr)
EP (1) EP1868457A1 (fr)
DE (1) DE102005017478A1 (fr)
RU (1) RU2382583C2 (fr)
WO (1) WO2006108470A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2394411B1 (es) * 2009-11-24 2013-12-05 Eusebio Moro Franco Equipo para depuracion de aire
US10064429B2 (en) 2011-09-23 2018-09-04 R.J. Reynolds Tobacco Company Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses
US20150059789A1 (en) * 2012-02-23 2015-03-05 Anthony Denis McCormack Tobacco smoke filter
US9179709B2 (en) 2012-07-25 2015-11-10 R. J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
US9119419B2 (en) 2012-10-10 2015-09-01 R.J. Reynolds Tobacco Company Filter material for a filter element of a smoking article, and associated system and method
CN104997162A (zh) * 2015-06-23 2015-10-28 滁州卷烟材料厂 一种解毒保健卷烟过滤嘴及其制备方法
US10524500B2 (en) 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements
US10383369B2 (en) * 2017-06-07 2019-08-20 Rai Strategic Holdings, Inc. Fibrous filtration material for electronic smoking article
JP7482126B2 (ja) 2018-12-07 2024-05-13 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 生分解性濾過材料を有するエアロゾル発生物品
CN113347895A (zh) * 2019-01-25 2021-09-03 日本烟草产业株式会社 吸烟物品用滤嘴
RU2722712C1 (ru) * 2019-07-23 2020-06-03 Павел Геннадьевич Владимиров Устройство для очистки воздуха в рабочей зоне мастера ногтевого сервиса
DE102020119388B4 (de) 2020-07-22 2023-08-17 Delfortgroup Ag Plissiertes filtermaterial für rauchartikel

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CH307314A (fr) 1951-12-06 1955-05-31 Lorillard Co P Filtre pour fumée de tabac.
BE528310A (fr) 1953-06-30
GB981362A (en) * 1962-06-07 1965-01-27 Tee Pak Inc Production of decausticized polysaccharide xanthates and their utilization
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GB1123617A (en) * 1964-12-14 1968-08-14 Courtaulds Ltd Improvements in and relating to the manufacture of filter elements
US3557801A (en) * 1965-10-14 1971-01-26 Celanese Corp Cigarette smoke filter material
US3658070A (en) * 1970-10-01 1972-04-25 Nicholas R Diluzio Tobacco smoke filters
US4246221A (en) * 1979-03-02 1981-01-20 Akzona Incorporated Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent
DE3141098C2 (de) * 1981-10-16 1987-01-29 Chemische Fabrik Stockhausen GmbH, 4150 Krefeld Verfahren zur Herstellung eines Absorptionsmaterials
US5161549A (en) * 1990-03-20 1992-11-10 Regional Research & Development Corporation Pure clean cigarette filter
US5738119A (en) 1994-06-20 1998-04-14 Courtaulds Fibres (Holdings) Limited Filter materials
EP1029461A3 (fr) 1999-02-17 2001-06-13 Dieter Meyer Matériau filtrant pour réduire les substances nocives dans la fumée de tabac
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Also Published As

Publication number Publication date
WO2006108470A1 (fr) 2006-10-19
US20080295852A1 (en) 2008-12-04
RU2382583C2 (ru) 2010-02-27
DE102005017478A1 (de) 2006-10-19
RU2007142186A (ru) 2009-05-27

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