EP2160107A2 - Verfahren zum herstellen von tabakrauchfiltern - Google Patents
Verfahren zum herstellen von tabakrauchfilternInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 241000208125 Nicotiana Species 0.000 title claims abstract description 23
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 23
- 239000000779 smoke Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000004627 regenerated cellulose Substances 0.000 claims abstract description 26
- 238000002788 crimping Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 34
- 229920000433 Lyocell Polymers 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 229920000297 Rayon Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000006072 paste Substances 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 description 12
- 239000007858 starting material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 239000001087 glyceryl triacetate Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
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.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710029831 DE102007029831A1 (de) | 2007-06-28 | 2007-06-28 | Verfahren zum Herstellen von Tabakrauchfiltern |
PCT/EP2008/004908 WO2009000453A2 (de) | 2007-06-28 | 2008-06-18 | Verfahren zum herstellen von tabakrauchfiltern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2160107A2 true EP2160107A2 (de) | 2010-03-10 |
EP2160107B1 EP2160107B1 (de) | 2012-10-24 |
Family
ID=40092214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08773498A Active EP2160107B1 (de) | 2007-06-28 | 2008-06-18 | Verfahren zum herstellen von tabakrauchfiltern |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2160107B1 (de) |
DE (1) | DE102007029831A1 (de) |
TW (1) | TW200916001A (de) |
WO (1) | WO2009000453A2 (de) |
Cited By (2)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008016827A1 (de) * | 2008-04-01 | 2009-10-08 | Hauni Maschinenbau Ag | Vorrichtung zum Transport eines Filtertows |
SG11201408777WA (en) * | 2012-07-13 | 2015-01-29 | Philip Morris Products Sa | 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 (ko) * | 2013-06-28 | 2014-11-03 | 코오롱인더스트리 주식회사 | 담배필터용 라이오셀 소재 및 그 제조방법 |
KR102211219B1 (ko) | 2014-06-30 | 2021-02-03 | 코오롱인더스트리 주식회사 | 담배필터용 이형단면 라이오셀 소재 및 그 제조방법 |
AT515930B1 (de) * | 2014-08-20 | 2016-01-15 | Lenzing Akiengesellschaft | Saugfähiger Artikel und seine Verwendung |
KR102211186B1 (ko) | 2014-12-31 | 2021-02-03 | 코오롱인더스트리 주식회사 | 담배필터용 라이오셀 소재 및 그 제조방법 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE528310A (de) * | 1953-06-30 | |||
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 (de) * | 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 (de) | 1999-04-19 | 2001-07-05 | Thueringisches Inst Textil | Verfahren zur Herstellung von cellulosischen Formkörpern mit hohem Adsorptionsvermögen |
DE10053359A1 (de) | 2000-10-27 | 2002-05-08 | Thueringisches Inst Textil | Verfahren zur Herstellung von cellulosischen Formkörpern mit neutraladsorbierenden Eigenschaften |
GB0517551D0 (en) | 2005-08-27 | 2005-10-05 | Acetate Products Ltd | Process for making filter tow |
-
2007
- 2007-06-28 DE DE200710029831 patent/DE102007029831A1/de not_active Withdrawn
-
2008
- 2008-06-18 EP EP08773498A patent/EP2160107B1/de active Active
- 2008-06-18 WO PCT/EP2008/004908 patent/WO2009000453A2/de active Application Filing
- 2008-06-27 TW TW97124284A patent/TW200916001A/zh unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009000453A2 * |
Cited By (2)
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 |
---|---|
TW200916001A (en) | 2009-04-16 |
EP2160107B1 (de) | 2012-10-24 |
DE102007029831A1 (de) | 2009-01-08 |
WO2009000453A3 (de) | 2009-03-19 |
WO2009000453A2 (de) | 2008-12-31 |
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