EP0913100B1 - Verfahren und Vorrichtung zum Aufbringen von Substanzen auf ein Filtermaterial - Google Patents

Verfahren und Vorrichtung zum Aufbringen von Substanzen auf ein Filtermaterial Download PDF

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Publication number
EP0913100B1
EP0913100B1 EP98118905A EP98118905A EP0913100B1 EP 0913100 B1 EP0913100 B1 EP 0913100B1 EP 98118905 A EP98118905 A EP 98118905A EP 98118905 A EP98118905 A EP 98118905A EP 0913100 B1 EP0913100 B1 EP 0913100B1
Authority
EP
European Patent Office
Prior art keywords
powder chamber
solids
filter material
filter
planiform
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.)
Expired - Lifetime
Application number
EP98118905A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0913100A3 (de
EP0913100A2 (de
Inventor
Thomas Jung
Volker Kuhl
Norbert Schulte
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.)
British American Tobacco Germany GmbH
Original Assignee
British American Tobacco Germany GmbH
BAT Cigarettenfabriken 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 British American Tobacco Germany GmbH, BAT Cigarettenfabriken GmbH filed Critical British American Tobacco Germany GmbH
Publication of EP0913100A2 publication Critical patent/EP0913100A2/de
Publication of EP0913100A3 publication Critical patent/EP0913100A3/de
Application granted granted Critical
Publication of EP0913100B1 publication Critical patent/EP0913100B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

Definitions

  • the invention relates to a method and a device for applying substances on the fibers of a filter material for smokable articles.
  • acid anhydrides of the di- or polycarboxylic acids can also be used in organic Solvent dissolved and applied to the fibers and optionally with water be hydrolyzed (DE 38 20 089 C2).
  • a method of the type specified in the preamble of claim 1 and an apparatus the genus specified in the preamble of claim 4 is derived from CH-A-372235 out.
  • Micronized pure solids or solid mixtures with a Particle size between 10 and 500 ⁇ m dusted on flat filter materials by adding the appropriate powder from openings of a pollinator's compartments as required the positions of the slider at the openings flow down and on the sheet-like Filter material, namely a paper web, is deposited.
  • the invention has for its object a method and an apparatus for application creating substances on the fibers of a filter material for smokable articles, where the disadvantages mentioned above do not occur.
  • a procedure and a device can be created with which simple process engineering High loads of the substances can also be applied.
  • This object is for a method by the features of claim 1 and for Device solved by the features of claim 4.
  • the dosing being carried out taking into account the filter production speed becomes. This ensures that, for example, per fiber length unit always the same amount of substance is applied.
  • the dosage is expediently carried out by a discontinuously micronized solid feeding reservoir in connection with a fine metering device, the gravimetric works and a twin screw for feeding the micronized solids to a pneumatically working conveyor line.
  • a discontinuously micronized solid feeding reservoir in connection with a fine metering device, the gravimetric works and a twin screw for feeding the micronized solids to a pneumatically working conveyor line.
  • the feedback about the filter manufacturing speed can be ensured that in Depending on the need, always the same amount of micronized solid particles, for example per fiber length unit.
  • micronized solid particles become pneumatic through a solid injector nozzle promoted so that they are carried away by the negative pressure generated in a tube. This largely prevents clumping.
  • the pneumatically conveyed solids / air flow is replaced by a Mixing zone directed.
  • the actual pollination takes place in a powder chamber, which is in the direction of the surface or fibrous filter material is open so as not to allow the passage of the filter material hinder.
  • Triacetin is applied to the filter material, either in front of or behind the Powder chamber.
  • the triacetin is preferably applied upstream of the filter chamber Adhesion effect for the micronized solid particles on the filter material further improve.
  • the air gap for the entry of the filter material into the powder chamber can be adjusted and is set so that contactless transport of the filter material is guaranteed is, but the escape of dosed solids from the powder chamber is prevented.
  • the Charge state of the filter material can be influenced.
  • an ionizing rod can be arranged from Rod electrode and counter electrode. With this ionizing bar, the surface of the filter material charged to the adhesion of the micronized solid particles to improve.
  • two nozzles can be provided in the powder chamber, which feed the micronized solid particles from below or from above.
  • the filter material dusted with the micronized solid particles is after the Leaving the powder chamber merged into a filter rod and in the usual Processed into a finished filter.
  • a fan is expediently connected to the outlet of the powder chamber Air and micronized solids through the powder chamber and optionally through a dedusting system connected to the powder chamber sucks.
  • the negative pressure present at the outlet of the powder chamber can be adjusted and allows the extraction of excess air from the pneumatic conveying of the Solids.
  • the setting of the negative pressure in the powder chamber can be done laterally flap attached in the powder chamber.
  • the negative pressure on the fan during production and Dosing phase kept constant to ensure an even, constant product application to the To ensure filter tow and to prevent dust from escaping from the powder chamber.
  • Filter tow 32 is schematically shown in the usual way as a spread, spanned web indicated stretching rollers 33 and a guide 35 of a device 36, in the triacetin is applied to the filter tow web.
  • the filter tow 32 In the running direction of the filter tow 32 behind the triacetin application 36, the filter tow 32 again guided over a drafting system 37 and then passes into the gap between two Ionizing rods 39, namely a stick electrode and a counter electrode, which by a charging generator 41 with spark current limitation with a negative charging voltage be supplied.
  • the web-shaped filter tow passes from the gap between the two metering rods 39 32 into an inlet slot 43 of a powder chamber 34 (see also FIG. 2), which in Running direction of the filter tow 32 is open in order not to allow the passage of the filter tow 32 hinder.
  • the size of the gap 43 for the entry of the filter tow 32 into the powder chamber 34 can perpendicular to the running direction of the filter tow 32 and is set so that a contactless transport of the filter tow 32 is guaranteed and the exit of fluidized solids from the powder chamber 34 is prevented.
  • the clamped filter tow 32 is to be explained Dusted with micronized solids or solid mixtures, as in Fig. 2 by the two nozzles 52 are indicated, which are above or below the web-shaped filter tow 32 are located.
  • the powder chamber 34 On the side opposite the inlet slot 43, the powder chamber 34 is with a Provided outlet slot 54, on which there is a standard for filter manufacture Injector nozzle 44 is mounted, in which the filter tow 32 moves together to form a rod and dust-laden air is extracted.
  • the filter rod thus produced, dusted with micronized solid particles, is from Wrapped the filter wrapping paper and cut it to the required filter rod length fed to a cigarette manufacturing machine in a subsequent production step where it is cut into pieces of appropriate length and connected to the tobacco strands is what creates finished filter cigarettes.
  • micronized solids and solid mixtures to be discribed.
  • This can be physiologically safe and sensory act interesting substances, in particular polycarboxylic acids or acid salts of Polycarboxylic acids such as citric acid, tartaric acid, succinic acid, malic acid, ascorbic acid as well as acidic esters of such organic polycarboxylic acids, mono-di-saccharides (e.g. Dextrose, cane sugar) and flavor-active substances (vanillin, menthol, etc.).
  • the finely ground, micronized pure solids or homogeneous solid mixtures have a maximum particle size of 50 ⁇ m and become one of the process size adapted storage vessel 12 discontinuously entered into a fine metering device 14, whose fill level is detected via minimum / maximum sensors. The minimum level the sensors respond, and solids are removed from the storage container 12 refilled. When the maximum level is reached, the refill switches off automatically.
  • the gravimetric fine metering device 14 guides the solids or solid mixtures via a twin screw 16 driven by an electric motor 15 into a Pneumatically operating conveyor line 17.
  • the fine metering device 14 is electrically connected to the Filter manufacturing machine coupled, i.e. the dosing quantity per filter rod is as Fixed value entered in electronics 19 for fine metering device 14.
  • the filter production speed serves as a speed guide for the fine metering device 14 and as the target value for their regulation.
  • the machine speed is with a Encoder 20 on the cutter head 22 of the filter manufacturing machine detects the endless filter train cut into individual filter rods.
  • the solids output by the fine metering device 14 fall through in free fall a tube 23 down into a solid injector nozzle 26.
  • the Pneumatic solids delivery as oil and grease-free compressed air 30 through a nozzle ring the solid injector nozzle 26 into the interior of the tube 17 adjoining the nozzle 26 is blown.
  • the negative pressure generated inside the tube 17 entrains the solids.
  • the solid / air stream is passed through a mixing zone 18, which is formed by a pipe leading vertically downwards into the powder chamber 34.
  • transverse slot die 52 In the upper area of the powder chamber 34 there is a transverse slot die 52, in which the width of the nozzle slot is transverse to the direction of production, ie to the direction of travel of the filter tow 32, at least the tow width before or after the triacetin application 36 corresponds.
  • the distance between the nozzle 52 and the filter tow 32 can be freely adjusted, by moving the slot die 52 vertically up or down, as by the Arrow 54 is indicated.
  • FIG Variant Although a single nozzle 52 is generally sufficient in principle, there is also one in FIG Variant shown, in which a second slot die 52 below the filter tow 32nd is attached.
  • the solid / air flow coming from the pneumatic conveyor line is divided in front of the two nozzles, the division of this stream being freely adjustable.
  • the powder chamber 34 narrows to a suction tube 56, whose vacuum can be adjusted and the suction of the excess air the pneumatic conveying of the solids allowed.
  • the negative pressure in the powder chamber 34 can be by a side of the powder chamber attached flap 38 can be adjusted.
  • the dust-laden, extracted conveying air is supplied for cleaning a mobile dedusting system 40.
  • the negative pressure in the Dedusting system 40 or in the powder chamber 34 is connected by a downstream Fan 50 generated.
  • the negative pressure on the fan 50 is thereby and dosing phase kept constant to ensure an even, constant product application to ensure the filter tow and to prevent dust from escaping from the powder chamber 34 to prevent.
  • the web-shaped filter tow whose state of charge to optimize the solids application has been influenced by the ionizing rods 39 is in the powder chamber 34 with the dusted micronized solids that adhere to the fibers of the filter tow 32, what for the applied triacetin also contributes. Then the spread filter tow 32 brought together to form an endless filter train and in the usual way to cigarette filters processed in the following production step with a tobacco rod a covering paper can be connected.
  • filter materials such as filter paper
  • Filter materials such as filter paper
  • the device described 10 are dusted with micronized solid particles.
  • triacetin application 36 in Seen the direction of transport of the filter material 32, also behind the powder chamber 34 take place, of course before moving the filter material to the filter strand.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Screw Conveyors (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP98118905A 1997-10-30 1998-10-07 Verfahren und Vorrichtung zum Aufbringen von Substanzen auf ein Filtermaterial Expired - Lifetime EP0913100B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748072 1997-10-30
DE19748072A DE19748072A1 (de) 1997-10-30 1997-10-30 Verfahren und Vorrichtung zum Aufbringen von Substanzen auf ein Filtermaterial

Publications (3)

Publication Number Publication Date
EP0913100A2 EP0913100A2 (de) 1999-05-06
EP0913100A3 EP0913100A3 (de) 2000-08-23
EP0913100B1 true EP0913100B1 (de) 2003-12-03

Family

ID=7847176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118905A Expired - Lifetime EP0913100B1 (de) 1997-10-30 1998-10-07 Verfahren und Vorrichtung zum Aufbringen von Substanzen auf ein Filtermaterial

Country Status (13)

Country Link
EP (1) EP0913100B1 (ja)
JP (1) JP3037937B2 (ja)
KR (1) KR100335469B1 (ja)
CN (1) CN1112140C (ja)
AT (1) ATE255337T1 (ja)
BR (1) BR9804311A (ja)
CA (1) CA2249816C (ja)
DE (2) DE19748072A1 (ja)
ES (1) ES2210641T3 (ja)
HK (1) HK1019187A1 (ja)
HU (1) HUP9802498A3 (ja)
MX (1) MXPA98008941A (ja)
PL (1) PL329434A1 (ja)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027597A1 (de) * 2006-06-13 2007-12-27 Hauni Maschinenbau Aktiengesellschaft Verfahren zum Betrieb einer Strangmaschine und Strangmaschine
US8375958B2 (en) 2008-05-21 2013-02-19 R.J. Reynolds Tobacco Company Cigarette filter comprising a carbonaceous fiber
US8613284B2 (en) 2008-05-21 2013-12-24 R.J. Reynolds Tobacco Company Cigarette filter comprising a degradable fiber
RU2010148804A (ru) * 2008-06-25 2012-07-27 Джапан Тобакко Инк. (Jp) Курительное изделие
US8119555B2 (en) 2008-11-20 2012-02-21 R. J. Reynolds Tobacco Company Carbonaceous material having modified pore structure
US8511319B2 (en) 2008-11-20 2013-08-20 R. J. Reynolds Tobacco Company Adsorbent material impregnated with metal oxide component
DE102009022759A1 (de) * 2009-05-26 2010-12-02 Hauni Maschinenbau Ag Aufbereitung eines Filtermaterialstreifens der Tabak verarbeitenden Industrie
WO2011070639A1 (ja) * 2009-12-07 2011-06-16 日本たばこ産業株式会社 粉粒体添加装置及びその添加方法
US20110271968A1 (en) 2010-05-07 2011-11-10 Carolyn Rierson Carpenter Filtered Cigarette With Modifiable Sensory Characteristics
KR101288805B1 (ko) * 2010-07-16 2013-07-23 주식회사 케이티앤지 고체형 멘톨 첨가 담배 및 그의 멘톨 첨가 방법, 그리고 그가 보관되는 담배 케이스
US8720450B2 (en) 2010-07-30 2014-05-13 R.J. Reynolds Tobacco Company Filter element comprising multifunctional fibrous smoke-altering material
CN102217799A (zh) * 2011-05-18 2011-10-19 滁州卷烟材料厂 含有维生素微粒的香烟过滤嘴及其生产方法
DE102011117614A1 (de) * 2011-11-04 2013-05-08 Björn O. Sörensen Zigarettenfilter mit organischen Säuren
KR20150088268A (ko) * 2012-11-29 2015-07-31 필립모리스 프로덕츠 에스.에이. 계량된 양의 입자들을 재료의 연속 흐름 내에 도입하기 위한 방법 및 장치
CN103653243B (zh) * 2013-12-04 2015-08-19 上海烟草集团有限责任公司 多功能添加材料的滤棒成型机
DE102015108252A1 (de) 2015-05-26 2016-12-01 Hauni Maschinenbau Gmbh Verfahren und Vorrichtung zum Herstellen eines Multisegmentfilters
US10512286B2 (en) 2017-10-19 2019-12-24 Rai Strategic Holdings, Inc. Colorimetric aerosol and gas detection for aerosol delivery device
DE102022116185A1 (de) 2022-06-29 2024-01-04 Körber Technologies Gmbh Maschine und Verfahren der Tabak verarbeitenden Industrie zum Herstellen eines Strangs oder Papierfilters sowie Verwendung der Maschine

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US3017309A (en) * 1957-02-21 1962-01-16 Eastman Kodak Co Method for the manufacture of filters composed of cellulose acetate
CH372235A (de) * 1959-07-06 1963-09-30 Ver Tabakfabriken Ag Filter für Raucherwaren mit mindestens zwei verschiedenen, hintereinander angeordneten Abschnitten sowie Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens
US3390039A (en) * 1964-10-09 1968-06-25 Eastman Kodak Co Method and apparatus for making additive filters
JPS60216843A (ja) * 1984-04-03 1985-10-30 Patent Puromooto Center:Kk 還元性ガス酸化触媒フイルタ
DE3820089A1 (de) 1988-06-13 1989-12-14 Bat Cigarettenfab Gmbh Verfahren zur impraegnierung von fasern eines tabakrauchfilters mit di- oder polycarbonsaeuren bzw. anhydriden derselben
DE3904239C1 (ja) 1989-02-13 1990-05-17 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De
JP2946236B2 (ja) * 1990-10-24 1999-09-06 株式会社三條機械製作所 タバコフィルターロッドの製造法及びその製造装置
FR2696080B1 (fr) * 1992-09-30 1994-12-23 Jesus Covarrubias Filtre à cigarette pour l'administration de taurine par inhalation.

Also Published As

Publication number Publication date
JPH11239472A (ja) 1999-09-07
PL329434A1 (en) 1999-05-10
JP3037937B2 (ja) 2000-05-08
HUP9802498A3 (en) 2000-07-28
ES2210641T3 (es) 2004-07-01
ATE255337T1 (de) 2003-12-15
KR100335469B1 (ko) 2002-11-30
CA2249816A1 (en) 1999-04-30
CN1216691A (zh) 1999-05-19
EP0913100A3 (de) 2000-08-23
CA2249816C (en) 2007-06-26
CN1112140C (zh) 2003-06-25
EP0913100A2 (de) 1999-05-06
HK1019187A1 (en) 2000-01-28
HUP9802498A2 (hu) 1999-06-28
MXPA98008941A (es) 2002-03-14
HU9802498D0 (en) 1998-12-28
DE59810322D1 (de) 2004-01-15
KR19990037495A (ko) 1999-05-25
DE19748072A1 (de) 1999-05-12
BR9804311A (pt) 2000-03-08

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