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WO2003039277A1 - Segments de filtres ou filtre pour cigarettes et procede de production associe - Google Patents

Segments de filtres ou filtre pour cigarettes et procede de production associe Download PDF

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Publication number
WO2003039277A1
WO2003039277A1 PCT/EP2002/011930 EP0211930W WO03039277A1 WO 2003039277 A1 WO2003039277 A1 WO 2003039277A1 EP 0211930 W EP0211930 W EP 0211930W WO 03039277 A1 WO03039277 A1 WO 03039277A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
extrudate
filters
wrapping
segment
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.)
Ceased
Application number
PCT/EP2002/011930
Other languages
German (de)
English (en)
Inventor
Harald Gosebruch
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.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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 Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to EP02787509A priority Critical patent/EP1441606A1/fr
Priority to JP2003541382A priority patent/JP2005507266A/ja
Priority to US10/493,316 priority patent/US20040250822A1/en
Publication of WO2003039277A1 publication Critical patent/WO2003039277A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0237—Filter rod forming processes by extrusion
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure

Definitions

  • the invention relates to a method for producing filter segments for ul ti segmentefil ter or filters of the tobacco processing industry, wherein first of all components of the filter segments or the filter an extrudate is produced by means of an extrusion process.
  • the invention further relates to a corresponding filter segment for a multi-segment filter or a corresponding filter of the tobacco processing industry.
  • a method for producing a fil strand is known, for example, from US 5,523,036.
  • a filter strand can be used an extruder is first extruded and then wrapped with a wrapping paper strip. At the end of the process, the filter string is cut into filters of multiple usage lengths.
  • the extruded filter material is gem. No. 5,523,036 about a plastic material which is extruded into an extrudate strand whose diameter is larger than the outlet opening of the extrusion press.
  • the smoke filter is a body which is produced by sintering thermoplastic and hydrophobic plastic foam, which is ground to the smallest particle size, and has a cross section adapted to a cigarette.
  • This filter body may be alone or in combination with a conventional example.
  • the invention has for its object to provide a method for producing filter elements or filters, which makes it possible in a simple and inexpensive manner to produce filters and filter elements or filter segments for multi-segment filters that are relatively insensitive to mechanical loads.
  • Another object of the invention is to provide a filter or a filter segment for a multi-segment filter of tobacco working industry that are insensitive even to mechanical loads.
  • This object is achieved by a process for the production of filter segments for multi-segment filters or filters in the tobacco processing industry, whereby firstly a strand-like extrudate is produced from a starting material by means of an extrusion process, which is further developed in a further process step that the extrudate with a compressible and / or elastic first material is encased.
  • the extrudate is cut into a filter component in appropriate lengths and has a relatively low tensile resistance and thus a low density. Due to the pulveriform components, this is very insensitive to mechanical loads if it is not covered according to the invention.
  • the air permeability corresponds to that of conventional filters or filter segments.
  • the extrudate is preferably heated before the coating step, as a result of which the extrudate can be further hardened or also chemically changed.
  • the method step of heating takes place in a temperature ture range from 600 ° C to 1,000 ° C.
  • the treatment step of heating in a temperature range of 600 ° C to 1,000 ° C leads to the fact that the binder is charred. This step can also be referred to as pyrolysis treatment.
  • Microwave heating is a particularly simple way of heating.
  • the first wrapping material is preferably completely smoke-impermeable or almost smoke-impermeable, in particular in the longitudinal axial direction.
  • the filter characteristics of the extrudate and the draft resistance of the filter segment due to the envelope with the first MateriaJ are not, or only insignificantly influenced.
  • the provision of a "compressible " uride / o 'of the elastic first material also has the advantage that fluctuations in the diameter of the extrudate can be compensated for, so that a strand which is uniform in diameter and thus diameter or filter of equal size can be produced.
  • this material can also be used to compensate for any differences in diameter of filter segments in a multi-segment filter, which is a very great advantage.
  • the wrapping with the first material can be done by a further extrusion process, immersion in one Melting bath or wrapping with strips of the first material and / or by wrapping with first material arranged on a, in particular soft, carrier strip. These variants can be seen as particularly effective and quick.
  • the first material is preferably a hot-melt adhesive, in particular an ethyl vinyl acetate copolymer, materials can be used which are already very well known in the manufacture of filters in the tobacco processing industry.
  • the hot-melt adhesive is preferably applied in a relatively thick layer.
  • the first material is preferably foamed, a closed-cell foam being produced in particular.
  • the desired smoke is particularly impervious! ässigkei t or an almost permanent vol 1 Rauchundu chl ässigkei t "given"
  • the first material is a cel 1 ul oseacetattow be high density, which itself is also preferably substantially impermeable to smoke.
  • the Cel 1 ul oseacetattow has a high density when, for example, it is very crimped.
  • the Cel 1 ul oseacetattow is wrapped around the extrudate transversely to the strand direction of the extrudate, in particular in a spiral.
  • the preferred direction of the fibers in the cell ul oseacetattow are then aligned transversely to the strand direction of the extrudate.
  • the first wrapping material can also be an air-laid fleece, which is produced by a method that is described in EP 003 20 44 B1.
  • the extrudate which is coated with the first material, is preferably coated with a second material, so that an appearance is evident usual filter segment or a filter which is conventional per se can be achieved.
  • the wrapping of the extrudate is particularly simple when the extrudate is wrapped in a strand process with the first and / or the second material.
  • the machine KDF 2E from the applicant which is known in specialist circles, is suitable for this purpose.
  • coated extrudate is preferably cut off into segments of a predeterminable length.
  • a filter or a filter segment for a multi-segment filter of the tobacco processing industry which is manufactured in particular according to the aforementioned method and which is provided with a, in particular shock-sensitive, core, which is enveloped by at least a first wrapping material which is compressible and / or elastic and in particular is essentially smoke-impermeable or completely smoke-impermeable.
  • the smoke impermeability or the essentially existing smoke impermeability should preferably prevail in the longitudinal axial direction, whereby the longitudinal orientation of the extrudate or core is to be understood.
  • the core preferably consists of an extrudate.
  • Fig. 1 is a schematic side view of an inventive device for producing Filter segments for multi-segment filters or filters
  • FIG. 3 shows a further exemplary embodiment of a device according to the invention for producing filter segments for multi-segment filters or filters of the tobacco processing industry.
  • An extrusion press 10 which can also be referred to as an extruder, is provided in order to form an extrudate 11.
  • Extrusion presses are known per se and are used in particular to produce, for example, plastic molding compounds in various forms, such as sheets, strips, tubes, hoses, jackets, etc.
  • Screw extruders which are also referred to as extruders, are particularly suitable for this purpose.
  • activated carbon in granular form can be provided as the starting material, to which a binder such as polyfurfuryl alcohol has been added.
  • Ceol ith grains Al-Si oxide grains
  • water glass as a binder can also serve as starting materials.
  • Other materials can also be added, if necessary, in order to achieve certain extrudate properties.
  • the corresponding materials are familiar to the person skilled in the art from the prior art (see the publications cited above).
  • the extrudate 11 After the extrudate 11 has emerged from the extrusion press 10, the extrudate is further processed in a processing device 14.
  • a processing device for example, an oven can be provided which, for example, converts the binder polyfurfuryl alcohol into carbon in the manner of a pyrolysis treatment in a temperature range from 600 ° C. to 1,000 ° C.
  • the processing device 14 can also be a Mi krowell oven, which leads to the fact that the water glass hardens by the action of heat.
  • the correspondingly processed strand of extrudate 12 is passed on as a filter core strand 12, specifically in the direction 25 of a strand machine 15, which can be, for example, a KDF 2E from the applicant.
  • a first wrapping material 18 is drawn off from a bobbin 17 and conveyed to the filter core strand 12 for wrapping around it.
  • the first wrapping material 18 can, for example, be a hot-melt adhesive such as Ethyl envi nyl acce Tatcopolymer, which is applied as a thick layer of glue, possibly also as foam, on a thick, soft paper (tissue). In this case, it is not necessary to provide a further second wrapping material 21 which is pulled off a bobbin 20.
  • the embodiment of FIG. 1 can thus be modified accordingly, in such a way that the bobbin 20 and the second wrapping material 21 are omitted.
  • the hot-melt adhesive is applied so thickly that, on the one hand, the shock sensitivity of the extrudate then encased overall is reduced and, if necessary, fluctuations in diameter can be compensated for.
  • a very crimped cell ulosacetattow which is not mixed with a plasticizer, such as triacetin, can be used as the first wrapping material and is wound around the strand transversely to the direction of the fibers.
  • a wrapping can be carried out in a spiral, for example in cigarillo manufacturing machines.
  • a second wrapping material 21 such as, for example, a conventional paper strip, is drawn off from a reel 20 and also applied to the outside of the first wrapping material.
  • a strand machine 15 for example of the type KDF 2E from the applicant.
  • the first and / or second wrapping material is wrapped around the extrudate wound.
  • the wound extrudate in filter 16 is then cut off by means of a knife apparatus, which is a component of each KDF machine.
  • filters 16 generally have multiple working lengths and are then brought together with tobacco sticks in a filter attachment machine, for example a MAX 80E from the applicant, and processed into filter cigarettes, or they are divided into filter segments and processed into multi-segment filters with filter sections of the same or a different type ,
  • FIG. 2 shows a cross section through a filter 16 according to the invention or a filter segment 24 according to the invention.
  • the filter 16 or the filter segment 24 consists of a filter core 22, the first wrapping material 18 and the second wrapping material 21.
  • the first and second wrapping materials can also be provided with perforation holes in the course of further processing.
  • FIG. 3 shows a further exemplary embodiment of a device by means of which a different process sequence is made possible.
  • an extrudate 11 is produced by means of an extrusion press 10, which is conveyed in the longitudinal axial direction 25 and is processed in a processing device 14 to a processed extrudate or filter core strand 12.
  • the first wrapping material can now be applied to or wrapped around it, for example by means of a melting bath 23 through which the filter core strand 12 is passed.
  • a hot-melt adhesive that is located in the melt pool 23 is then also suitable as the first wrapping material.
  • a circular nozzle 26 arranged behind provides that the hot melt adhesive and thus the coated filter core strand 12 is brought to the desired diameter.
  • a further extrusion press can be provided instead of the melting bath 23, which is not shown in FIG.
  • a second wrapping material 21 is drawn off from a bobbin 20 and brought into the area of the filter core strand 12 wrapped with the first wrapping material, and then by means of a strand machine 15 the second wrapping material 21 in order to wind the filter core strand 12 provided with the first covering material 18. Then filter elements 24 or filter segments 24 are cut off from the strand.

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

L'invention concerne un procédé de production de segments de filtre (24) pour un filtre multisegments (16) ou de filtres (16) destinés à l'industrie du tabac, un extrudat (11, 12) étant tout d'abord produit à partir d'éléments constitutifs des segments de filtre (24) ou du filtre au moyen d'un procédé d'extrusion. L'invention concerne de plus un segment de filtre (24) correspondant pour un filtre multisegments (16) ou pour un filtre (16) destiné à l'industrie du tabac. Selon l'invention, le procédé est caractérisé en ce que l'extrudat (11, 12) est enveloppé par une première matière (18) compressible et/ou élastique dans une étape ultérieure du procédé. Selon l'invention, le segment de filtre ou ledit filtre est caractérisé en ce que le noyau de filtre (22) est enveloppé par au moins une première matière enveloppante (18) qui est compressible et/ou élastique.
PCT/EP2002/011930 2001-11-05 2002-10-25 Segments de filtres ou filtre pour cigarettes et procede de production associe Ceased WO2003039277A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02787509A EP1441606A1 (fr) 2001-11-05 2002-10-25 Segments de filtres ou filtre pour cigarettes et procede de production associe
JP2003541382A JP2005507266A (ja) 2001-11-05 2002-10-25 紙巻きたばこ用フィルタセグメントまたはフィルタ並びにこのフィルタセグメントまたはフィルタを製造する方法
US10/493,316 US20040250822A1 (en) 2001-11-05 2002-10-25 Filter segments or filter for cigarettes and method for the production thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10153820A DE10153820A1 (de) 2001-11-05 2001-11-05 Filtersegmente oder Filter für Zigaretten sowie Verfahren zu ihrer Herstellung
DE10153820.0 2001-11-05

Publications (1)

Publication Number Publication Date
WO2003039277A1 true WO2003039277A1 (fr) 2003-05-15

Family

ID=7704380

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011930 Ceased WO2003039277A1 (fr) 2001-11-05 2002-10-25 Segments de filtres ou filtre pour cigarettes et procede de production associe

Country Status (7)

Country Link
US (1) US20040250822A1 (fr)
EP (1) EP1441606A1 (fr)
JP (1) JP2005507266A (fr)
CN (1) CN1306887C (fr)
DE (1) DE10153820A1 (fr)
PL (1) PL368445A1 (fr)
WO (1) WO2003039277A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027566B2 (en) 2010-10-15 2015-05-12 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US9149071B2 (en) 2013-03-13 2015-10-06 Celanese Acetate Llc Smoke filters for reducing components in a smoke stream
US9386803B2 (en) 2010-01-06 2016-07-12 Celanese Acetate Llc Tobacco smoke filter for smoking device with porous mass of active particulate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7836895B2 (en) * 2003-06-23 2010-11-23 R. J. Reynolds Tobacco Company Filtered cigarette incorporating a breakable capsule
GB0921930D0 (en) * 2009-12-16 2010-02-03 British American Tobacco Co Smoking article component
WO2013066589A1 (fr) * 2011-10-14 2013-05-10 Celanese Acetate Llc Appareils, systèmes et procédés associés pour former des masses poreuses pour filtre de fumée
DE102010043343A1 (de) * 2010-11-03 2012-05-03 Hauni Maschinenbau Ag Vorrichtung zur Herstellung von Koaxialfiltern für stabförmige Rauchartikel
DE102010043350A1 (de) * 2010-11-03 2012-05-03 Hauni Maschinenbau Ag Vorrichtung zur Herstellung von Koaxialfiltern für stabförmige Rauchartikel
GB201202220D0 (en) * 2012-02-08 2012-03-28 Filtrona Filter Prod Dev Co Tobacco smoke filter
KR20150064199A (ko) * 2012-10-11 2015-06-10 셀라네세 아세테이트 앨앨씨 연기 필터용 다공체를 형성시키기 위한 장치, 시스템 및 관련 방법
WO2018172235A1 (fr) * 2017-03-20 2018-09-27 Philip Morris Products S.A. Appareil et procédé de production d'un article emballé en forme de tige
AT523163B1 (de) * 2020-04-28 2021-06-15 Ess Holding Gmbh Filter zur Sorption von gesundheitsschädlichen Tabakrauchanteilen

Citations (10)

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Publication number Priority date Publication date Assignee Title
GB451683A (en) 1935-02-13 1936-08-10 Charles Frederick Sharman Improvements in or relating to filter filling for cigarettes, cigars or tobacco pipes
DE1692945A1 (de) 1967-09-22 1972-03-30 Reemtsma H F & Ph Rauchfilter fuer Zigaretten und Verfahren zu dessen Herstellung
GB1271274A (en) 1969-03-25 1972-04-19 Monsanto Chemicals Filtering element
GB1341400A (en) 1971-04-16 1973-12-19 Monsanto Chemicals Cigarette filters
GB1442631A (en) 1973-02-06 1976-07-14 Monsanto Ltd Cigarette filters
GB1456908A (en) 1974-04-11 1976-12-01 Monsanto Ltd Cigarette filters
EP0082734A2 (fr) * 1981-12-23 1983-06-29 Filtrona Limited Filtres à fumée et leur fabrication
EP0032044B1 (fr) 1979-12-21 1983-11-09 Kimberly-Clark Corporation Formage à sec de nappes
WO1988006412A1 (fr) * 1987-02-24 1988-09-07 American Filtrona Corporation Filtre de filtration de tres grande efficacite
US5523036A (en) 1987-05-28 1996-06-04 British-American Tobacco Company Limited Methods of making tobacco smoke filter elements

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US3405717A (en) * 1966-11-15 1968-10-15 American Filtrona Corp Method of associating a filter section with a tobacco section or with one or more additional filter sections
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CA999501A (en) 1972-08-21 1976-11-09 George L. Mathe Apparatus and method for producing filament tow filter rod having a foamed thermoplastic sheath
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CH579881A5 (fr) * 1973-09-24 1976-09-30 Baumgartner Papiers Sa
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US4869276A (en) * 1987-08-26 1989-09-26 Philip Morris Incorporated Hinged filter sleeve
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US5306675A (en) * 1992-10-28 1994-04-26 Corning Incorporated Method of producing crack-free activated carbon structures
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US6026819A (en) * 1998-02-18 2000-02-22 Filtrona International Limited Tobacco smoke filter incorporating sheath-core bicomponent fibers and tobacco smoke product made therefrom

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB451683A (en) 1935-02-13 1936-08-10 Charles Frederick Sharman Improvements in or relating to filter filling for cigarettes, cigars or tobacco pipes
DE1692945A1 (de) 1967-09-22 1972-03-30 Reemtsma H F & Ph Rauchfilter fuer Zigaretten und Verfahren zu dessen Herstellung
GB1271274A (en) 1969-03-25 1972-04-19 Monsanto Chemicals Filtering element
GB1341400A (en) 1971-04-16 1973-12-19 Monsanto Chemicals Cigarette filters
GB1442631A (en) 1973-02-06 1976-07-14 Monsanto Ltd Cigarette filters
GB1456908A (en) 1974-04-11 1976-12-01 Monsanto Ltd Cigarette filters
EP0032044B1 (fr) 1979-12-21 1983-11-09 Kimberly-Clark Corporation Formage à sec de nappes
EP0082734A2 (fr) * 1981-12-23 1983-06-29 Filtrona Limited Filtres à fumée et leur fabrication
WO1988006412A1 (fr) * 1987-02-24 1988-09-07 American Filtrona Corporation Filtre de filtration de tres grande efficacite
US5523036A (en) 1987-05-28 1996-06-04 British-American Tobacco Company Limited Methods of making tobacco smoke filter elements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1441606A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386803B2 (en) 2010-01-06 2016-07-12 Celanese Acetate Llc Tobacco smoke filter for smoking device with porous mass of active particulate
US9027566B2 (en) 2010-10-15 2015-05-12 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US9138017B2 (en) 2010-10-15 2015-09-22 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US9149069B2 (en) 2010-10-15 2015-10-06 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US9179708B2 (en) 2010-10-15 2015-11-10 Celanese Acetate Llc Apparatuses, systems, and associated methods for forming porous masses for smoke filter
US9149071B2 (en) 2013-03-13 2015-10-06 Celanese Acetate Llc Smoke filters for reducing components in a smoke stream

Also Published As

Publication number Publication date
EP1441606A1 (fr) 2004-08-04
CN1306887C (zh) 2007-03-28
JP2005507266A (ja) 2005-03-17
US20040250822A1 (en) 2004-12-16
CN1582120A (zh) 2005-02-16
DE10153820A1 (de) 2003-05-15
PL368445A1 (en) 2005-03-21

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