EP2160107A2 - Method for the production of tobacco smoke filters - Google Patents

Method for the production of tobacco smoke filters

Info

Publication number
EP2160107A2
EP2160107A2 EP08773498A EP08773498A EP2160107A2 EP 2160107 A2 EP2160107 A2 EP 2160107A2 EP 08773498 A EP08773498 A EP 08773498A EP 08773498 A EP08773498 A EP 08773498A EP 2160107 A2 EP2160107 A2 EP 2160107A2
Authority
EP
European Patent Office
Prior art keywords
dtex
cable
filter
regenerated cellulose
filter material
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.)
Granted
Application number
EP08773498A
Other languages
German (de)
French (fr)
Other versions
EP2160107B1 (en
Inventor
Ludwig Riepert
Thomas Pienemann
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 EP2160107A2 publication Critical patent/EP2160107A2/en
Application granted granted Critical
Publication of EP2160107B1 publication Critical patent/EP2160107B1/en
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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a method for producing tobacco smoke filters containing regenerated cellulose.
  • tobacco smoke filters such as those used for cigarettes, are made of cellulose acetate.
  • the starting material used for further production is a tow made of crimped continuous fibers of cellulose acetate (see, for example, WO 2007/026131 A1), which is generally delivered as a bale.
  • the cable is pulled out of the bale and opened.
  • the opening for which the terms “spreading” or “stretching” are used, takes place in a so-called drafting system.
  • the material is loosened and puffy, while the crimped basic structure and the cross section of the individual fibers are preserved.
  • the open The cable is then formed into a filter strand and surrounded by a sheath and then cut and packaged or forwarded directly to a cigarette machine.
  • tobacco smoke filter made of regenerated cellulose. This is understood to mean cellulosic materials which are produced in a dry-wet extrusion process (solvent spinning process) as cellulosic fibers and filaments.
  • solvent spinning process solvent spinning process
  • cellulosic fibers and filaments e.g. US 4,246,221 discloses the preparation of "lyocell” fibers.
  • Similar extruded cellulosic fibers are known under the names “viscose” and "modal".
  • DE 100 53 359 A1 describes a process for the preparation of cellulose molded articles (for example fibers or filaments of lyocell) in which a spinning solution is provided with an adsorber (for example activated carbon). From such a material can be produced tobacco smoke filter, which show a particularly favorable retention behavior for gaseous substances.
  • a spinning solution for example fibers or filaments of lyocell
  • an adsorber for example activated carbon
  • cables made from crimped lyocell continuous fibers are known (WO 95/24520 A1), they have not been used as a starting material in filter production because the viscoelastic fiber properties are different from those of cellulose acetate crimped endless fibers (higher tensile strength, lower elongation) Expected to open up in a filter machine designed for cellulose acetate tow fibers. Therefore, the processing on conventional filter machines is not yet known. Instead, tobacco smoke filters comprising regenerated cellulose are made from a nonwoven fabric made from staple fibers, but this can not be done on a conventional filter machine and is generally more expensive. Basically, regenerated cellulose is a material that is very suitable for tobacco smoke filters, because cellulose is more easily degraded in the environment than cellulose acetate and can be better adapted to given properties, eg by adding adsorbers (see above).
  • the claim 22 relates to a tobacco smoke filter produced by the process according to the invention, the claim 23 a filter cigarette with such a tobacco smoke filter.
  • a tow of regenerated cellulose filter material is crimped and opened immediately thereafter.
  • the cable of filter material is crimped in the process according to the invention, so that no crimped starting material - A -
  • the cable is brought together before crimping from a plurality of individual cables.
  • At least two individual cables can have a different composition. This opens up the possibility of using a relatively small number of different types of single cables, e.g. by additives such as e.g. Adsorber and / or differ by different titers from each other to assemble a large number of different types of tobacco smoke filters. The method is therefore very flexible in handling.
  • the individual cables used for the cable can also be of the same design. Furthermore, it is conceivable to use only a single cable, which has the desired total titre from the outset.
  • the total titer of a single cable is e.g. in the range of 1000 dtex to 25000 dtex, preferably in the range of 3000 dtex to 12000 dtex, while the total titer of the cable is e.g. may range from 15,000 dtex to 80,000 dtex.
  • the filter material comprises regenerated cellulose continuous fibers
  • the unit titer of a regenerated cellulose continuous fiber is e.g. in the range of 1.5 dtex to 12 dtex.
  • the filter material may comprise at least one adsorber, eg activated carbon, ion exchanger, alumina, silica, etc.
  • the adsorber can be incorporated, for example in the form of a granulate or a powder, already into the starting material of the regenerated cellulose present in a spinning solution , so that fibers loaded with adsorber can be extruded from regenerated cellulose, for example as described in DE 100 53 359 A1 or DE 199 17 614 A1.
  • the adsorber may also be introduced between the fibers in the filter material and / or applied to the fibers of the filter material, if appropriate also with the addition of a binder.
  • the cable is formed into a filter strand which is surrounded by a sheath.
  • the use of commercially available filter wrapping papers and glues is possible.
  • the casing strand surrounded by the casing may be cut to length (e.g., to an integer multiple of the length of a single tobacco smoke filter) and packaged. It is also a direct further transport of the filter strand to a cigarette machine conceivable.
  • the process steps after crimping can be carried out on a commercially available filter rod machine, e.g. the filter rod machine marketed by Hauni Maschinenbau AG under the name "KDF".
  • the process steps following opening are carried out immediately after opening.
  • Crimping can take place in a stuffer box, which is known in principle.
  • the opening can be in a drafting system carry out.
  • the cable is made up of multiple individual cables before crimping, single cables on spindles can be used.
  • an additive is applied to the cable after crimping (or inserted into the cable), as already mentioned, e.g. a granulate, a powder or even a paste or liquid, this is preferably done after opening.
  • Liquids may e.g. be applied by means of a spray chamber in which at least a portion of the additive is sprayed on, and solids e.g. with the help of a bedding device.
  • a spray chamber in which at least a portion of the additive is sprayed on
  • solids e.g. with the help of a bedding device.
  • Regenerated cellulose has advantages over tobacco smoke filters when compared to cellulose acetate. Thus, no additives such as hardeners or plasticizers (especially triacetin) are required. Furthermore, the amount of dust generated during processing with regenerated cellulose is lower than with cellulose acetate. The method according to the invention therefore has economic advantages, also because the price for e.g. Lyocell is comparable or even lower than that for cellulose acetate.
  • the inventive method shows a high variability in the possibilities, a cable made of filter material from individual cables with different composition, different individual titer or total titer or with different assemble various additional materials such as adsorbers or mixtures of adsorbers.
  • the cost of warehousing is therefore favorable.
  • the degree of crimping can be adjusted directly, ie it is variable and does not depend on the specifications of a supplier (as with crimped cables made of cellulose acetate).
  • Figure 1 is a schematic representation illustrating the implementation of the method according to the invention.
  • FIG. 1 shows in a schematic manner by way of example how the process for producing regenerated cellulose tobacco smoke filters can proceed.
  • the device for carrying out the method has four sections, namely an assembly device 1, a crimper 2, a drafting device 3 and a formatting device 4.
  • the tobacco smoke filters are composed of different materials.
  • a number of spindles (cops, reels) 10 are located in the assembly device 1, on each of which a single cable 12 is wound.
  • the individual cables 12 are made e.g. made of uncrimped endless fibers of Lyocell in pure form or with admixed components. In principle, however, it is also conceivable that all individual cables 12 are designed identically. Exemplary embodiments for this are described below.
  • the individual cables 12 (eg each with a total titer in the range from 3000 dtex to 12000 dtex) are brought together in a funnel-like merger 14 to form a cable 16, for example, has a total titre in the range of 25,000 dtex to 80000 dtex.
  • the assembly device 1 thus allows the provision of a cable 16 made of filter material, which can be selected individually from components in the form of individual cables 12.
  • the cable 16 e.g. Contains endless fibers of lyocell, which are usually still ungcrimpt, is now fed to the crimper 2.
  • the crimper 2 is in principle of conventional construction, but in the prior art usually not arranged in front of a filter production plant, since in the prior art already crimped cables are used as starting material.
  • a compression chamber 18 the cable 16 is compressed, wherein the individual fibers in the filter material escape from their original straight course and take a crimped structure, so a kind of zigzag structure, as it is desired in a tobacco smoke filter.
  • a piston is moved in the stuffer box 18, so that there is an intermittent operation.
  • a buffer 20 is provided behind the stuffer box 18, into which the crimped cable 16 runs, to allow in the occurring behind the buffer 20 process steps again a continuous operation.
  • an aggregate not shown in FIG. 1, can be arranged in front of the stuffer box 18, in which conditioning to a predefined temperature and / or humidity is carried out, as a result of which the crimping result can be improved.
  • the crimped cable 16 emerging from the buffer 20 is introduced into the drafting device 3 via a spreader nozzle 22.
  • the cable 16 passing between two brake rollers 24 is fed to a plurality of pairs of draw rollers 26a, 26b.
  • the roller pair 26b runs at a higher speed than the pair of rollers 26a, thereby opening the cable 16, while the crimped basic structure of the individual fibers preserved.
  • a crimped cable 16 with regenerated cellulose can be opened well.
  • a spray chamber 28 is arranged in the embodiment, in which the opened cable 16, which has adopted a band-like shape at the latest after passing through the spreader nozzles 22 and the brake rollers 24, with additives such. Liquids (also dissolved or dispersed therein substances) can be acted upon. Adhesive-type additives can be used to fix powdered or granular substances.
  • the flat cable 16 enters the formatter 4 via an inlet nozzle 30.
  • the cable 16 is formed into a filter strand 34 with a substantially circular cross-section.
  • a format belt 36 unwound from a roll (Bobine) filter wrapping paper 38 is placed around the filter strand 34 and finally glued along the longitudinal seam thereby forming.
  • a cutting device 40 the wrapped filter strand is cut into pieces, which are each packed in larger numbers together. In the exemplary embodiment, these pieces have the length of four individual filters.
  • Three individual cables of Lyocell continuous filament yarns with a total denier of 6660 dtex and a single denier of 1.7 dtex are combined with three individual cables made of Lyocell endless fibers of 6660 dtex total titre and a single denier of 5 dtex to a Lyocell cable without added adsorber summarized with a total of 39 960 dtex.
  • This cable is fed directly into the stuffer box of a crimper in front of the drafting system of a filter machine.
  • a cable made of Lyocell continuous fibers with a total denier of 66600 dtex is pulled off a roll and fed directly into the stuffer box of a crimper in front of the drafting system of a filter machine.
  • the cable is not composed of several individual cables.

Abstract

Disclosed is a method for producing tobacco smoke filters by means of regenerated cellulose. In said method, a tow (16) of filter material containing regenerated cellulose is crimped (2) and is then opened (3). In advantageous embodiments, the tow (16) is combined (1) from several individual tows (12) prior to the crimping process.

Description

Verfahren zum Herstellen von Tabakrauchfiltern Process for producing tobacco smoke filters
Die Erfindung betrifft ein Verfahren zum Herstellen von Tabakrauchfiltern, die regenerierte Zellulose enthalten.The invention relates to a method for producing tobacco smoke filters containing regenerated cellulose.
Üblicherweise werden Tabakrauchfilter, wie sie insbesondere für Cigaretten verwendet werden, aus Celluloseacetat hergestellt. Dabei dient als Ausgangsmaterial für die weitere Fertigung ein Kabel (Tow) aus gecrimpten Endlosfasern aus Celluloseacetat (siehe z.B. WO 2007/026131 Al), das in der Regel als Ballen angeliefert wird. Bei der Weiterverarbeitung im Be- reich einer Filtermaschine wird das Kabel aus dem Ballen gezogen und geöffnet. Das Öffnen, wofür auch die Begriffe "Strek- ken" oder "Recken" verwendet werden, findet in einem so genannten Streckwerk statt. Dabei wird das Material aufgelockert und bauschig, während die gecrimpte Grundstruktur und der Querschnitt der einzelnen Fasern erhalten bleiben. Das geöff- nete Kabel wird zu einem Filterstrang geformt und mit einer Umhüllung umgeben und danach zugeschnitten und verpackt oder direkt an eine Cigarettenmaschine weitergeleitet.Usually, tobacco smoke filters, such as those used for cigarettes, are made of cellulose acetate. In this case, the starting material used for further production is a tow made of crimped continuous fibers of cellulose acetate (see, for example, WO 2007/026131 A1), which is generally delivered as a bale. During further processing in the area of a filter machine, the cable is pulled out of the bale and opened. The opening, for which the terms "spreading" or "stretching" are used, takes place in a so-called drafting system. The material is loosened and puffy, while the crimped basic structure and the cross section of the individual fibers are preserved. The open The cable is then formed into a filter strand and surrounded by a sheath and then cut and packaged or forwarded directly to a cigarette machine.
Es sind auch Tabakrauchfilter aus regenerierter Cellulose bekannt. Darunter versteht man Cellulosematerialien, die in einem Trocken-Nass-Extrusionsverfahren (Lösungsmittel-Spinnverfahren) als cellulosische Fasern und Filamente hergestellt werden. So beschreibt z.B. die US 4 246 221 die Herstellung von "Lyocell"-Fasern . Ähnliche extrudierte Fasern auf Cellulo- sebasis sind unter den Namen "Viskose" und "Modal" bekannt.There are also known tobacco smoke filter made of regenerated cellulose. This is understood to mean cellulosic materials which are produced in a dry-wet extrusion process (solvent spinning process) as cellulosic fibers and filaments. Thus, e.g. US 4,246,221 discloses the preparation of "lyocell" fibers. Similar extruded cellulosic fibers are known under the names "viscose" and "modal".
In DE 100 53 359 Al ist ein Verfahren zum Herstellen von cel- lulosischen Formkörpern (z.B. Fasern oder Filamenten aus Lyocell) beschrieben, bei dem eine Spinnlösung mit einem Ad- sorber (z.B. Aktivkohle) versehen wird. Aus einem derartigen Material lassen sich Tabakrauchfilter herstellen, die ein besonders günstiges Retentionsverhalten für gasförmige Substanzen zeigen.DE 100 53 359 A1 describes a process for the preparation of cellulose molded articles (for example fibers or filaments of lyocell) in which a spinning solution is provided with an adsorber (for example activated carbon). From such a material can be produced tobacco smoke filter, which show a particularly favorable retention behavior for gaseous substances.
Kabel aus gecrimpten Lyocell-Endlosfasern sind zwar bekannt (WO 95/24520 Al) , wurden bisher bei der Filterfertigung aber nicht als Ausgangsmaterial verwendet, da die viskoelastischen Fasereigenschaften unterschiedlich zu denen von gecrimpten Endlosfasern aus Celluloseacetat sind (höhere Reißfestigkeit, geringere Dehnung) , was Probleme beim Öffnen in einer Filtermaschine erwarten ließ, die für Kabel aus Celluloseacetat- Endlosfasern konzipiert ist. Daher ist die Verarbeitung auf üblichen Filtermaschinen bisher nicht bekannt. Stattdessen werden Tabakrauchfilter, die regenerierte Cellulose aufweisen, aus einem aus Stapelfasern gefertigten Vlies hergestellt, was aber nicht auf einer üblichen Filtermaschine erfolgen kann und generell aufwendiger ist. Grundsätzlich ist regenerierte Cellulose ein für Tabakrauchfilter sehr geeignetes Material, denn Cellulose wird in der Umwelt leichter abgebaut als Celluloseacetat und lässt sich besser an vorgegebene Eigenschaften anpassen, z.B. durch Zuge- ben von Adsorbern (siehe oben) .Although cables made from crimped lyocell continuous fibers are known (WO 95/24520 A1), they have not been used as a starting material in filter production because the viscoelastic fiber properties are different from those of cellulose acetate crimped endless fibers (higher tensile strength, lower elongation) Expected to open up in a filter machine designed for cellulose acetate tow fibers. Therefore, the processing on conventional filter machines is not yet known. Instead, tobacco smoke filters comprising regenerated cellulose are made from a nonwoven fabric made from staple fibers, but this can not be done on a conventional filter machine and is generally more expensive. Basically, regenerated cellulose is a material that is very suitable for tobacco smoke filters, because cellulose is more easily degraded in the environment than cellulose acetate and can be better adapted to given properties, eg by adding adsorbers (see above).
Es ist Aufgabe der Erfindung, ein Verfahren zum Herstellen von Tabakrauchfiltern mit regenerierter Cellulose zu schaffen, das sich ohne großen Aufwand in einen Fertigungsprozess integrie- ren lässt und bei dem auch für die Herstellung von Cellulose- acetat-Filtersträngen verwendete Maschinen benutzt werden können.It is an object of the invention to provide a method for producing tobacco smoke filters with regenerated cellulose, which can be integrated into a manufacturing process without great effort and in which machines used for the production of cellulose acetate filter strands can be used.
Diese Aufgabe wird gelöst durch ein Verfahren zum Herstellen von Tabakrauchfiltern mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen. Der Anspruch 22 betrifft einen nach dem erfindungsgemäßen Verfahren hergestellten Tabakrauchfilter, der Anspruch 23 eine Filtercigarette mit einem derartigen Ta- bakrauchfilter .This object is achieved by a method for producing tobacco smoke filters with the features of claim 1. Advantageous embodiments of the invention will become apparent from the dependent claims. The claim 22 relates to a tobacco smoke filter produced by the process according to the invention, the claim 23 a filter cigarette with such a tobacco smoke filter.
Bei dem erfindungsgemäßen Verfahren zum Herstellen von Tabakrauchfiltern mit regenerierter Cellulose wird ein Kabel aus Filtermaterial, das regenerierte Cellulose aufweist, gecrimpt und unmittelbar danach geöffnet.In the process of producing regenerated cellulose tobacco smoke filters of the invention, a tow of regenerated cellulose filter material is crimped and opened immediately thereafter.
Hier wird das Wort "Kabel" für den englischen Begriff "Tow" benutzt. Darunter ist ganz allgemein ein Strang aus vielen Einzelfasern zu verstehen, wobei der Gesamtquerschnitt oder dessen Form nicht näher spezifiziert ist. Die Fasern im Kabel sind nicht verzwirnt und sind vor dem Crimpen generell parallel ausgerichtet.Here the word "cable" is used for the English word "tow". This is generally understood to mean a strand of many individual fibers, the overall cross section or its shape being unspecified. The fibers in the cable are not twisted and are generally aligned parallel before crimping.
Das Kabel aus Filtermaterial wird bei dem erfindungsgemäßen Verfahren gecrimpt, so dass kein gecrimptes Ausgangsmaterial - A -The cable of filter material is crimped in the process according to the invention, so that no crimped starting material - A -
benötigt wird. Überraschenderweise hat sich gezeigt, dass sich ein Kabel aus Filtermaterial mit regenerierter Cellulose entgegen der gängigen Auffassung doch gut öffnen lässt, so dass die weitere Filterherstellung nach dem Crimpen auf Filterma- schinen durchgeführt werden kann, wie sie für Filter aus CeI- luloseacetat benutzt werden.is needed. Surprisingly, it has been shown that a cable made of filter material with regenerated cellulose can still be opened well, contrary to the conventional view, so that the further filter production after crimping can be carried out on filter machines, as used for filters made from cellulose acetate.
Bei einer vorteilhaften Ausführungsform der Erfindung wird das Kabel vor dem Crimpen aus mehreren Einzelkabeln zusammenge- führt. Dabei können mindestens zwei Einzelkabel eine unterschiedliche Zusammensetzung aufweisen. Dies eröffnet die Möglichkeit, aus einer relativ geringen Zahl unterschiedlicher Arten von Einzelkabeln, die sich z.B. durch Zusätze wie z.B. Adsorber und/oder durch unterschiedlichen Titer voneinander unterscheiden, eine große Zahl unterschiedlicher Arten von Tabakrauchfiltern zusammenzustellen. Das Verfahren ist also in der Handhabung sehr flexibel.In an advantageous embodiment of the invention, the cable is brought together before crimping from a plurality of individual cables. At least two individual cables can have a different composition. This opens up the possibility of using a relatively small number of different types of single cables, e.g. by additives such as e.g. Adsorber and / or differ by different titers from each other to assemble a large number of different types of tobacco smoke filters. The method is therefore very flexible in handling.
Die für das Kabel verwendeten Einzelkabel können aber auch gleich aufgebaut sein. Ferner ist es denkbar, nur ein einziges Kabel zu verwenden, das von vornherein den gewünschten Ge- samttiter aufweist.But the individual cables used for the cable can also be of the same design. Furthermore, it is conceivable to use only a single cable, which has the desired total titre from the outset.
Der Gesamttiter eines Einzelkabels liegt z.B. im Bereich von 1000 dtex bis 25000 dtex, vorzugsweise im Bereich von 3000 dtex bis 12000 dtex, während der Gesamttiter des Kabels z.B. im Bereich von 15000 dtex bis 80000 dtex liegen kann. Wenn das Filtermaterial Endlosfasern aus regenerierter Cellulose aufweist, liegt der Einzeltiter einer Endlosfaser aus re- generierter Cellulose z.B. im Bereich von 1,5 dtex bis 12 dtex.The total titer of a single cable is e.g. in the range of 1000 dtex to 25000 dtex, preferably in the range of 3000 dtex to 12000 dtex, while the total titer of the cable is e.g. may range from 15,000 dtex to 80,000 dtex. If the filter material comprises regenerated cellulose continuous fibers, the unit titer of a regenerated cellulose continuous fiber is e.g. in the range of 1.5 dtex to 12 dtex.
Für die regenerierte Cellulose eignen sich bekannte Materialien wie Lyocell, Viskose und Modal. Mischungen derartiger Mate- rialien sind ebenfalls denkbar. Wie bereits erwähnt, kann das Filtermaterial mindestens einen Adsorber aufweisen, z.B. Aktivkohle, Ionenaustauscher, Aluminiumoxid, Siliciumdioxid, usw. Der Adsorber lässt sich, z.B. in Form eines Granulats oder eines Pulvers, bereits in das Ausgangsmaterial der regenerierten Cellulose, die in einer Spinnlösung vorliegt, einmischen, so dass mit Adsorber belade- ne Fasern von regenerierter Cellulose extrudiert werden können, z.B. wie in der DE 100 53 359 Al oder der DE 199 17 614 Al beschrieben. Alternativ oder zusätzlich kann der Adsorber auch zwischen die Fasern in dem Filtermaterial eingetragen und/oder auf die Fasern des Filtermaterials aufgetragen werden, gegebenenfalls auch unter Zusatz eines Bindemittels.For the regenerated cellulose are known materials such as lyocell, viscose and modal. Mixtures of such materials are also conceivable. As already mentioned, the filter material may comprise at least one adsorber, eg activated carbon, ion exchanger, alumina, silica, etc. The adsorber can be incorporated, for example in the form of a granulate or a powder, already into the starting material of the regenerated cellulose present in a spinning solution , so that fibers loaded with adsorber can be extruded from regenerated cellulose, for example as described in DE 100 53 359 A1 or DE 199 17 614 A1. Alternatively or additionally, the adsorber may also be introduced between the fibers in the filter material and / or applied to the fibers of the filter material, if appropriate also with the addition of a binder.
Vorzugsweise wird das Kabel nach dem Crimpen und Öffnen zu einem Filterstrang geformt, der mit einer Umhüllung umgeben wird. Dabei ist die Verwendung von handelsüblichen Filterumhüllungspapieren und Leimen möglich. Danach kann der mit der Umhüllung umgebene Filterstrang auf Länge geschnitten (z.B. auf ein ganzzahliges Vielfaches der Länge eines einzelnen Tabakrauchfilters) und verpackt werden. Es ist auch ein direkter Weitertransport des Filterstrangs an eine Cigarettenmaschine denkbar.Preferably, after crimping and opening, the cable is formed into a filter strand which is surrounded by a sheath. The use of commercially available filter wrapping papers and glues is possible. Thereafter, the casing strand surrounded by the casing may be cut to length (e.g., to an integer multiple of the length of a single tobacco smoke filter) and packaged. It is also a direct further transport of the filter strand to a cigarette machine conceivable.
Wie bereits angedeutet, lassen sich die Verfahrensschritte nach dem Crimpen (insbesondere Öffnen, Bilden des Strangs, Umhüllen mit dem Filterumhüllungspapier, Schneiden und Packen) auf einer handelsüblichen Filterstrangmaschine durchführen, z.B. der von der Hauni Maschinenbau AG unter der Bezeichnung "KDF" vertriebenen Filterstrangmaschine. Dabei werden die auf das Öffnen folgenden Verfahrensschritte unmittelbar nach dem Öffnen durchgeführt.As already indicated, the process steps after crimping (in particular opening, forming the strand, wrapping with the filter wrapping paper, cutting and packing) can be carried out on a commercially available filter rod machine, e.g. the filter rod machine marketed by Hauni Maschinenbau AG under the name "KDF". The process steps following opening are carried out immediately after opening.
Das Crimpen kann in einer Stauchkammer erfolgen, was im Prin- zip bekannt ist. Das Öffnen lässt sich in einem Streckwerk durchführen. Dabei ist es vorteilhaft, zwischen der Stauchkammer und dem Streckwerk einen Puffer anzuordnen, der dazu eingerichtet ist, einen intermittierenden Betrieb der Stauchkammer an einen kontinuierlichen Betrieb des Streckwerks anzupas- sen.Crimping can take place in a stuffer box, which is known in principle. The opening can be in a drafting system carry out. In this case, it is advantageous to arrange a buffer between the stuffer box and the drafting arrangement, which is set up to adapt an intermittent operation of the stuffer box to a continuous operation of the drafting unit.
Wenn das Kabel vor dem Crimpen aus mehreren Einzelkabeln zusammengeführt wird, können dazu auf Spindeln angelieferte Einzelkabel verwendet werden.If the cable is made up of multiple individual cables before crimping, single cables on spindles can be used.
Wenn nach dem Crimpen ein Zusatz auf das Kabel aufgebracht (oder in das Kabel eingebracht) wird, wie bereits erwähnt, z.B. ein Granulat, ein Pulver oder auch eine Paste oder Flüssigkeit, erfolgt dies vorzugsweise nach dem Öffnen. Flüssig- keiten können z.B. mit Hilfe einer Sprühkammer aufgebracht werden, in der zumindest ein Teil des Zusatzes aufgesprüht wird, und Feststoffe z.B. mit Hilfe einer Einstreuvorrichtung. Bei der Einbringung von Granulaten sind Ladungen bis zum Dreifachen des Ausgangsgewichts des Kabels mit regenerierter CeI- lulose möglich.If an additive is applied to the cable after crimping (or inserted into the cable), as already mentioned, e.g. a granulate, a powder or even a paste or liquid, this is preferably done after opening. Liquids may e.g. be applied by means of a spray chamber in which at least a portion of the additive is sprayed on, and solids e.g. with the help of a bedding device. When introducing granules, charges of up to three times the initial weight of the cable with regenerated cellulose are possible.
Im Vergleich zu Celluloseacetat hat regenerierte Cellulose bei der Verwendung in Tabakrauchfiltern Vorteile. So sind keine Zusätze wie Härter oder Plastifizierungsmittel (insbesondere Triacetin) erforderlich. Ferner ist der Staubanfall bei der Verarbeitung bei regenerierter Cellulose geringer als bei Celluloseacetat. Das erfindungsgemäße Verfahren weist daher wirtschaftliche Vorteile auf, auch weil der Preis für z.B. Lyocell vergleichbar oder sogar geringer als der für Celluloseacetat ist.Regenerated cellulose has advantages over tobacco smoke filters when compared to cellulose acetate. Thus, no additives such as hardeners or plasticizers (especially triacetin) are required. Furthermore, the amount of dust generated during processing with regenerated cellulose is lower than with cellulose acetate. The method according to the invention therefore has economic advantages, also because the price for e.g. Lyocell is comparable or even lower than that for cellulose acetate.
Ferner zeigt das erfindungsgemäße Verfahren eine hohe Variabilität bei den Möglichkeiten, ein Kabel aus Filtermaterial aus Einzelkabeln mit unterschiedlicher Zusammensetzung, unter- schiedlichem Einzeltiter oder Gesamttiter oder mit unter- schiedlichen Zusatzmaterialien wie Adsorbern oder Mischungen von Adsorbern zusammenzustellen. Die Kosten der Lagerhaltung sind daher günstig. Das Maß der Crimpung lässt sich direkt einstellen, ist also variabel und nicht von den Vorgaben eines Lieferanten abhängig (wie bei gecrimpten Kabeln aus Cellulose- acetat) .Furthermore, the inventive method shows a high variability in the possibilities, a cable made of filter material from individual cables with different composition, different individual titer or total titer or with different assemble various additional materials such as adsorbers or mixtures of adsorbers. The cost of warehousing is therefore favorable. The degree of crimping can be adjusted directly, ie it is variable and does not depend on the specifications of a supplier (as with crimped cables made of cellulose acetate).
Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen weiter beschrieben. Die Zeichnung zeigt inIn the following, the invention will be further described by means of exemplary embodiments. The drawing shows in
Figur 1 eine schematische Darstellung, die die Durchführung des erfindungsgemäßen Verfahrens veranschaulicht.Figure 1 is a schematic representation illustrating the implementation of the method according to the invention.
In Figur 1 ist in schematischer Weise anhand eines Beispiels gezeigt, wie das Verfahren zum Herstellen von Tabakrauchfiltern mit regenerierter Cellulose ablaufen kann.FIG. 1 shows in a schematic manner by way of example how the process for producing regenerated cellulose tobacco smoke filters can proceed.
Die Vorrichtung zur Durchführung des Verfahrens hat vier Abschnitte, nämlich eine Zusammenstellungseinrichtung 1, einen Crimper 2, ein Streckwerk 3 und eine Formatierungseinrichtung 4.The device for carrying out the method has four sections, namely an assembly device 1, a crimper 2, a drafting device 3 and a formatting device 4.
Im Ausführungsbeispiel werden die Tabakrauchfilter aus verschiedenen Materialien zusammengestellt. Dazu befinden sich in der Zusammenstellungseinrichtung 1 eine Anzahl von Spindeln (Kopsen, Haspeln) 10, auf die jeweils ein Einzelkabel 12 aufgewickelt ist. Die Einzelkabel 12 bestehen z.B. aus ungecrimp- ten Endlosfasern aus Lyocell in reiner Form oder mit zugemischten Bestandteilen. Grundsätzlich ist es aber auch denk- bar, dass alle Einzelkabel 12 gleichartig gestaltet sind. Ausführungsbeispiele dafür sind weiter unten beschrieben.In the exemplary embodiment, the tobacco smoke filters are composed of different materials. For this purpose, a number of spindles (cops, reels) 10 are located in the assembly device 1, on each of which a single cable 12 is wound. The individual cables 12 are made e.g. made of uncrimped endless fibers of Lyocell in pure form or with admixed components. In principle, however, it is also conceivable that all individual cables 12 are designed identically. Exemplary embodiments for this are described below.
Die Einzelkabel 12 (z.B. jeweils mit einem Gesamttiter im Bereich von 3000 dtex bis 12000 dtex) werden in einem trichter- artigen Zusammenführer 14 zu einem Kabel 16 zusammengeführt, das z.B. einen Gesamttiter im Bereich von 25000 dtex bis 80000 dtex hat. Die Zusammenstellungseinrichtung 1 erlaubt also die Bereitstellung eines Kabels 16 aus Filtermaterial, das individuell aus Komponenten in Form von Einzelkabeln 12 ausge- wählt werden kann.The individual cables 12 (eg each with a total titer in the range from 3000 dtex to 12000 dtex) are brought together in a funnel-like merger 14 to form a cable 16, for example, has a total titre in the range of 25,000 dtex to 80000 dtex. The assembly device 1 thus allows the provision of a cable 16 made of filter material, which can be selected individually from components in the form of individual cables 12.
Das Kabel 16, das z.B. Endlosfasern aus Lyocell enthält, die in der Regel noch ungecrimpt sind, wird nun dem Crimper 2 zugeführt. Der Crimper 2 ist im Prinzip von herkömmlicher Bau- art, aber im Stand der Technik in der Regel nicht vor einer Filterfertigungsanlage angeordnet, da im Stand der Technik als Ausgangsmaterial bereits gecrimpte Kabel verwendet werden. In einer Stauchkammer 18 wird das Kabel 16 gestaucht, wobei die einzelnen Fasern in dem Filtermaterial aus ihrem ursprünglich geradlinigen Verlauf ausweichen und eine gecrimpte Struktur, also eine Art Zickzackstruktur, annehmen, wie es in einem Tabakrauchfilter erwünscht ist. Im Ausführungsbeispiel wird in der Stauchkammer 18 ein Kolben bewegt, so dass sich ein intermittierender Betrieb ergibt. Daher ist hinter der Stauchkammer 18 ein Puffer 20 vorgesehen, in den das gecrimpte Kabel 16 hineinläuft, um in den hinter dem Puffer 20 stattfindenden Verfahrensschritten wieder einen kontinuierlichen Betrieb zu ermöglichen. Zusätzlich kann vor der Stauchkammer 18 ein in Figur 1 nicht abgebildetes Aggregat angeordnet sein, in dem eine Konditionierung auf eine vorgegebene Temperatur und/oder Feuchte vorgenommen wird, wodurch sich das Crimpergebnis verbessern lässt.The cable 16, e.g. Contains endless fibers of lyocell, which are usually still ungcrimpt, is now fed to the crimper 2. The crimper 2 is in principle of conventional construction, but in the prior art usually not arranged in front of a filter production plant, since in the prior art already crimped cables are used as starting material. In a compression chamber 18, the cable 16 is compressed, wherein the individual fibers in the filter material escape from their original straight course and take a crimped structure, so a kind of zigzag structure, as it is desired in a tobacco smoke filter. In the embodiment, a piston is moved in the stuffer box 18, so that there is an intermittent operation. Therefore, a buffer 20 is provided behind the stuffer box 18, into which the crimped cable 16 runs, to allow in the occurring behind the buffer 20 process steps again a continuous operation. In addition, an aggregate, not shown in FIG. 1, can be arranged in front of the stuffer box 18, in which conditioning to a predefined temperature and / or humidity is carried out, as a result of which the crimping result can be improved.
Das aus dem Puffer 20 austretende gecrimpte Kabel 16 wird über eine Ausbreiterdüse 22 in das Streckwerk 3 eingeführt. In dem Streckwerk 3 wird das zwischen zwei Bremswalzen 24 hindurchtretende Kabel 16 mehreren Paaren von Streckwalzen 26a, 26b zugeführt. Das Walzenpaar 26b läuft mit höherer Geschwindigkeit als das Walzenpaar 26a, wodurch das Kabel 16 geöffnet wird, während die gecrimpte Grundstruktur der einzelnen Fasern erhalten bleibt. Trotz der von Celluloseacetat abweichenden viskoelastischen Fasereigenschaften von regenerierter Cellulo- se lässt sich ein gecrimptes Kabel 16 mit regenerierter Cellu- lose gut öffnen.The crimped cable 16 emerging from the buffer 20 is introduced into the drafting device 3 via a spreader nozzle 22. In the drafting unit 3, the cable 16 passing between two brake rollers 24 is fed to a plurality of pairs of draw rollers 26a, 26b. The roller pair 26b runs at a higher speed than the pair of rollers 26a, thereby opening the cable 16, while the crimped basic structure of the individual fibers preserved. Despite the viscoelastic fiber properties of regenerated cellulose deviating from cellulose acetate, a crimped cable 16 with regenerated cellulose can be opened well.
Hinter den Streckwalzen 26 ist im Ausführungsbeispiel eine Sprühkammer 28 angeordnet, in der das geöffnete Kabel 16, das spätestens nach dem Durchlaufen durch die Ausbreiterdüsen 22 und die Bremswalzen 24 eine bandartige Form angenommen hat, mit Zusätzen wie z.B. Flüssigkeiten (auch mit darin gelösten oder dispergierten Substanzen) beaufschlagt werden kann. Zum Fixieren von pulver- oder granulatförmigen Substanzen können dabei klebstoffartige Zusatzmittel verwendet werden.Behind the draw rolls 26 a spray chamber 28 is arranged in the embodiment, in which the opened cable 16, which has adopted a band-like shape at the latest after passing through the spreader nozzles 22 and the brake rollers 24, with additives such. Liquids (also dissolved or dispersed therein substances) can be acted upon. Adhesive-type additives can be used to fix powdered or granular substances.
Anschließend tritt das flache Kabel 16 über eine Einlaufdüse 30 in die Formatierungseinrichtung 4 ein. Mit Hilfe eines Einlauffingers 32 wird das Kabel 16 zu einem Filterstrang 34 mit im Wesentlichen kreisrundem Querschnitt geformt. Über ein Formatband 36 wird ein von einer Rolle (Bobine) abgewickeltes Filterumhüllungspapier 38 um den Filterstrang 34 gelegt und schließlich entlang der sich dabei ausbildenden Längsnaht verleimt. In einer Schneideinrichtung 40 wird der umhüllte Filterstrang in Stücke geschnitten, die jeweils in größerer Zahl zusammen verpackt werden. Im Ausführungsbeispiel haben diese Stücke die Länge von vier Einzelfiltern.Subsequently, the flat cable 16 enters the formatter 4 via an inlet nozzle 30. With the help of an inlet finger 32, the cable 16 is formed into a filter strand 34 with a substantially circular cross-section. About a format belt 36 unwound from a roll (Bobine) filter wrapping paper 38 is placed around the filter strand 34 and finally glued along the longitudinal seam thereby forming. In a cutting device 40, the wrapped filter strand is cut into pieces, which are each packed in larger numbers together. In the exemplary embodiment, these pieces have the length of four individual filters.
Es folgen einige Beispiele, die verschiedene Möglichkeiten für die Zusammensetzung des Kabels 16 zeigen. Darin ist die Garnfeinheit (Titer) in der international üblichen Einheit "dezi- tex" (dtex) angegeben; 1 dtex = 1 g/10000 m. Die Umrechnung auf die alte Einheit Denier (den) erfolgt über 10 dtex = 9 den. Beispiel 1Here are some examples that show various options for the composition of the cable 16. The denier (denier) is given in the internationally customary unit "decitex"(dtex); 1 dtex = 1 g / 10000 m. The conversion to the old unit Denier (den) is done over 10 dtex = 9 den. example 1
Fünf Einzelkabel (Towbänder) von jeweils 6660 dtex Gesamt- titer, jeweils bestehend aus Lyocell-Endlosfasern mit einem Einzeltiter von 5 dtex, denen bei der Herstellung 30 Gew.-% Kokosnussschalenkohle zugesetzt worden sind, und drei Einzelkabel von jeweils 6660 dtex Gesamttiter aus Lyocell- Endlosfasern von 5 dtex Einzeltiter (ohne Adsorbent) werden von Spindeln (Kopsen, Haspeln) abgezogen und zu einem Kabel (Tow) mit einem Gesamttiter von 53280 dtex zusammengefasst und direkt in die Stauchkammer eines Crimpers vor dem Streckwerk einer Filtermaschine geführt.Five individual tows each of 6660 dtex total, each consisting of 5 dtex lyocell continuous filaments, to which 30% by weight of coconut shell carbon have been added, and three single cables each of 6660 dtex total titre of lyocell - Endless fibers of 5 dtex single titer (without adsorbent) are subtracted from spindles (cops, reels) and combined into a tow with a total titer of 53280 dtex and fed directly into the stuffer box of a crimper in front of the drafting system of a filter machine.
Beispiel 2Example 2
Drei Einzelkabel aus Lyocell-Endlosfasern mit einem jeweiligen Gesamttiter von 6660 dtex und einem Einzeltiter von 1,7 dtex werden mit drei Einzelkabeln aus Lyocell-Endlosfasern von je- weils 6660 dtex Gesamttiter und einem Einzeltiter von 5 dtex zu einem Kabel aus Lyocell ohne zugesetzten Adsorber mit einem Gesamttiter von 39 960 dtex zusammengefasst . Dieses Kabel wird direkt in die Stauchkammer eines Crimpers vor dem Streckwerk einer Filtermaschine geführt.Three individual cables of Lyocell continuous filament yarns with a total denier of 6660 dtex and a single denier of 1.7 dtex are combined with three individual cables made of Lyocell endless fibers of 6660 dtex total titre and a single denier of 5 dtex to a Lyocell cable without added adsorber summarized with a total of 39 960 dtex. This cable is fed directly into the stuffer box of a crimper in front of the drafting system of a filter machine.
Beispiel 3Example 3
Ein Kabel aus Lyocell-Endlosfasern mit einem Gesamttiter von 66600 dtex wird von einer Rolle abgezogen und direkt in die Stauchkammer eines Crimpers vor dem Streckwerk einer Filtermaschine geführt. In diesem Fall ist das Kabel nicht aus mehreren Einzelkabeln zusammengesetzt. Beispiel 4A cable made of Lyocell continuous fibers with a total denier of 66600 dtex is pulled off a roll and fed directly into the stuffer box of a crimper in front of the drafting system of a filter machine. In this case, the cable is not composed of several individual cables. Example 4
Fünf Einzelkabel mit einem Gesamttiter von jeweils 6660 dtex, die aus mit 30 Gew.-% Aktivkohle in der Faser enthaltenden Lyocell-Endlosfasern mit einem Einzeltiter von 5 dtex bestehen, werden mit fünf Einzelkabeln von jeweils 6660 dtex Gesamttiter, die Lyocell-Endlosfasern mit einem Einzeltiter von 5 dtex und einer Beladung mit 30 Gew.-% Ionenaustauscher in der Faser enthalten, zusammengefasst und direkt in die Stauch- kammer eines Crimpers vor dem Streckwerk einer Filtermaschine geführt . Five single cables with a total titer of 6660 dtex, which consist of 30 wt .-% of activated carbon in the fiber-containing Lyocell continuous fibers with a single denier of 5 dtex, with five individual cables of 6660 dtex total titer, the Lyocell continuous fibers with a Single titer of 5 dtex and a loading with 30 wt .-% ion exchanger contained in the fiber, summarized and fed directly into the compression chamber of a Crimpers before the drafting of a filter machine.

Claims

Patentansprüche claims
1. Verfahren zum Herstellen von Tabakrauchfiltern mit regenerierter Cellulose, wobei ein Kabel (16) aus Filtermateri- al, das regenerierte Cellulose aufweist, gecrimpt und danach geöffnet wird.1. A process for producing tobacco smoke filters with regenerated cellulose, wherein a cable (16) made of filter material having regenerated cellulose is crimped and then opened.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Kabel (16) vor dem Crimpen aus mehreren Einzelkabeln (12) zusammengeführt wird.2. The method according to claim 1, characterized in that the cable (16) is brought together before crimping from a plurality of individual cables (12).
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass mindestens zwei Einzelkabel (12) eine unterschiedliche Zusammensetzung aufweisen.3. The method according to claim 2, characterized in that at least two individual cables (12) have a different composition.
4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Gesamttiter eines Einzelkabels (12) im Bereich von 1000 dtex bis 25000 dtex, vorzugsweise von 3000 dtex bis 12000 dtex, liegt.4. The method according to claim 2 or 3, characterized in that the total titer of a single cable (12) in the range of 1000 dtex to 25000 dtex, preferably from 3000 dtex to 12000 dtex, is located.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Filtermaterial Endlosfasern aus regenerierter Cellulose aufweist.5. The method according to any one of claims 1 to 4, characterized in that the filter material comprises continuous fibers of regenerated cellulose.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der Einzeltiter einer Endlosfaser aus regenerierter Cellulose im Bereich von 1,5 dtex bis 12 dtex liegt.6. The method according to claim 5, characterized in that the individual titer of a continuous fiber made of regenerated cellulose in the range of 1.5 dtex to 12 dtex.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch ge- kennzeichnet, dass der Gesamttiter des Kabels (16) im Bereich von 15000 dtex bis 80000 dtex liegt.7. The method according to any one of claims 1 to 6, character- ized in that the total titer of the cable (16) is in the range of 15000 dtex to 80000 dtex.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die regenerierte Cellulose mindestens eines der folgenden Materialien aufweist: Lyocell, Viskose, Modal.8. The method according to any one of claims 1 to 7, characterized in that the regenerated cellulose at least one of the following materials: lyocell, viscose, modal.
9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch ge- kennzeichnet, dass das Filtermaterial mindestens einen Ad- sorber aufweist.9. The method according to any one of claims 1 to 8, character- ized in that the filter material has at least one adsorber.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass der Adsorber mindestens eines der in der folgenden Liste enthaltenen Materialien aufweist: Aktivkohle, Ionenaustauscher, Aluminiumoxid, Siliziumdioxid.10. The method according to claim 9, characterized in that the adsorber comprises at least one of the materials contained in the following list: activated carbon, ion exchanger, alumina, silica.
11. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass der Adsorber auf mindestens eine der folgenden Weisen in das Filtermaterial eingebracht wird: Einmischen in die Spinnlösung bei der Herstellung von regenerierten Cellulo- sefasern, Eintragen zwischen Fasern in dem Filtermaterial, Auftragen auf Fasern des Filtermaterials.11. The method according to claim 9 or 10, characterized in that the adsorber is introduced into the filter material in at least one of the following ways: mixing in the spinning solution in the production of regenerated Cellulo- sefasern, entry between fibers in the filter material, application to fibers of the filter material.
12. Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Kabel (16) nach dem Crimpen und Öffnen zu einem Filterstrang (34) geformt wird, der mit einer Umhüllung umgeben wird.12. The method according to any one of claims 1 to 11, characterized in that the cable (16) is formed after crimping and opening to a filter strand (34) which is surrounded by a sheath.
13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass der mit der Umhüllung umgebene Filterstrang (34) auf Länge geschnitten und verpackt wird.13. The method according to claim 12, characterized in that the surrounding with the envelope filter strand (34) is cut to length and packaged.
14. Verfahren nach Anspruch 12 oder 13, dadurch gekennzeich- net, dass die auf das Öffnen folgenden Verfahrensschritte unmittelbar nach dem Öffnen durchgeführt werden.14. The method according to claim 12 or 13, characterized marked, that the steps following the opening process steps are performed immediately after opening.
15. Verfahren nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass das Crimpen in einer Stauchkammer (18) durchgeführt wird. 15. The method according to any one of claims 1 to 14, characterized in that the crimping in a stuffer box (18) is performed.
16. Verfahren nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass das Öffnen in einem Streckwerk (3) durchgeführt wird.16. The method according to any one of claims 1 to 15, characterized in that the opening in a drafting system (3) is performed.
17. Verfahren nach den Ansprüchen 15 und 16, dadurch gekennzeichnet, dass zwischen der Stauchkammer (18) und dem Streckwerk (3) ein Puffer (20) angeordnet ist, der dazu eingerichtet ist, einen intermittierenden Betrieb der Stauchkammer (18) an einen kontinuierlichen Betrieb des Streckwerks (3) anzupassen.17. The method according to claims 15 and 16, characterized in that between the stuffer box (18) and the drafting device (3) a buffer (20) is arranged, which is adapted to an intermittent operation of the stuffer box (18) to a continuous Operation of the drafting system (3) adapt.
18. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Einzelkabel (12) von Spindeln (10) abgewickelt und da- nach zusammengeführt werden.18. The method according to claim 2, characterized in that the individual cables (12) are unwound from spindles (10) and then brought together.
19. Verfahren nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, dass nach dem Crimpen, und zwar vorzugsweise nach dem Öffnen, ein Zusatz auf das Kabel (16) aufgebracht und/oder in das Kabel (16) eingebracht wird.19. The method according to any one of claims 1 to 18, characterized in that after crimping, preferably after opening, an additive applied to the cable (16) and / or in the cable (16) is introduced.
20. Verfahren nach Anspruch 19, dadurch gekennzeichnet, dass der Zusatz mindestens eine der in der folgenden Liste enthaltenen Materialien aufweist: Granulate, Pulver, Pasten, Flüssigkeiten.20. The method according to claim 19, characterized in that the additive comprises at least one of the materials contained in the following list: granules, powders, pastes, liquids.
21. Verfahren nach Anspruch 19 oder 20, dadurch gekennzeichnet, dass zumindest ein Teil des Zusatzes aufgesprüht wird.21. The method according to claim 19 or 20, characterized in that at least a part of the additive is sprayed.
22. Tabakrauchfilter, hergestellt nach einem Verfahren gemäß einem der Ansprüche 1 bis 21.22. Tobacco smoke filter, produced by a process according to one of claims 1 to 21.
23. Filtercigarette, mit einem Tabakrauchfilter nach Anspruch 22. 23. Filter cigarette, with a tobacco smoke filter according to claim 22.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9833017B2 (en) 2012-07-25 2017-12-05 R.J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008016827A1 (en) * 2008-04-01 2009-10-08 Hauni Maschinenbau Ag Device for transporting a filter tow
EP2871982A1 (en) * 2012-07-13 2015-05-20 Philip Morris Products S.A. Degradable filter for smoking articles
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
KR101455002B1 (en) * 2013-06-28 2014-11-03 코오롱인더스트리 주식회사 Lyocell Material Cigarette Filter and Method for the Same
KR102211219B1 (en) 2014-06-30 2021-02-03 코오롱인더스트리 주식회사 Lyocell Material with Noncircle Cross Section for Cigarette Filter And Manufacturing Method of the same
AT515930B1 (en) * 2014-08-20 2016-01-15 Lenzing Akiengesellschaft Absorbent article and its use
KR102211186B1 (en) 2014-12-31 2021-02-03 코오롱인더스트리 주식회사 Lyocell Material Cigarette Filter and Method for the Same
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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL186392B (en) * 1953-06-30 Herberts & Co Gmbh CARBOXYL GROUPS CONTAINING POLYESTERS, METHOD FOR PREPARATION THEREOF, AND THESE ESTERS CONTAIN Aqueous COATING AGENTS.
US2790208A (en) * 1954-03-15 1957-04-30 Eastman Kodak Co Method and means for opening crimped continuous filament tow
US2978752A (en) * 1958-02-11 1961-04-11 Celanese Corp Processing tow
US3224453A (en) * 1959-06-12 1965-12-21 Celanese Corp Filter cigarettes
NL273334A (en) * 1961-01-09
US3253969A (en) * 1963-04-30 1966-05-31 Eastman Kodak Co Process for making cigarette filter rods from crimped continuous filaments
US3384932A (en) * 1964-02-28 1968-05-28 Celanese Corp Method of improving the uniformity of an unopened tow band and apparatus for making cigarette filters therefrom
US3396061A (en) * 1964-06-01 1968-08-06 Celanese Corp 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
US5683777A (en) * 1993-06-16 1997-11-04 Rhone-Poulenc Rhodia Ag Multiple width fiber strip and method and apparatus for its production
GB9404547D0 (en) 1994-03-09 1994-04-20 Courtaulds Fibres Holdings Ltd Fibre production process
US5947126A (en) * 1997-05-29 1999-09-07 Eastman Chemical Co. Environmentally disintegratable tobacco smoke filter rod
DE19917614C2 (en) 1999-04-19 2001-07-05 Thueringisches Inst Textil Process for the production of cellulosic moldings with high adsorption capacity
DE10053359A1 (en) 2000-10-27 2002-05-08 Thueringisches Inst Textil Cellulose fiber or film production with neutral adsorbent properties, for use e.g. in air filters, involves wet-spinning solution in aqueous tert. amine oxide containing cellulose and finely-divided neutral adsorber
GB0517551D0 (en) 2005-08-27 2005-10-05 Acetate Products Ltd Process for making filter tow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009000453A2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9833017B2 (en) 2012-07-25 2017-12-05 R.J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements

Also Published As

Publication number Publication date
WO2009000453A2 (en) 2008-12-31
TW200916001A (en) 2009-04-16
DE102007029831A1 (en) 2009-01-08
EP2160107B1 (en) 2012-10-24
WO2009000453A3 (en) 2009-03-19

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