EP3123877A1 - Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac - Google Patents

Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac Download PDF

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Publication number
EP3123877A1
EP3123877A1 EP15178912.0A EP15178912A EP3123877A1 EP 3123877 A1 EP3123877 A1 EP 3123877A1 EP 15178912 A EP15178912 A EP 15178912A EP 3123877 A1 EP3123877 A1 EP 3123877A1
Authority
EP
European Patent Office
Prior art keywords
filter tow
filter
strip
steam
tow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15178912.0A
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German (de)
English (en)
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.)
Gudang Garam TBK PT
Original Assignee
Gudang Garam TBK PT
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 Gudang Garam TBK PT filed Critical Gudang Garam TBK PT
Priority to EP15178912.0A priority Critical patent/EP3123877A1/fr
Publication of EP3123877A1 publication Critical patent/EP3123877A1/fr
Withdrawn legal-status Critical Current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
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture

Definitions

  • the invention relates to a method and apparatus for processing a strip of filter material for producing paperless filter rods for rod-shaped smoking articles of the tobacco processing industry.
  • Filter cigarettes have a gas-permeable filter rod ( plug ) on the smoking end of a rod made of tobacco rod .
  • the filter rod is usually made of cellulose acetate ( cellulose acetate ).
  • the filter rod has a wrapper made of paper ( plug wrap ).
  • the rod made of tobacco material is wrapped with cigarette paper ( cigarette paper ) and a filter paper ( tipping paper ) envelops the filter rod and an edge region of the cigarette paper.
  • Full-diameter filter rods reduce the particles exiting the smoking end of the cigarette.
  • cellulose acetate may contain activated carbon (charcoal) to increasingly absorb components from the gas phase.
  • Hollow filter rods (hollow tube) serve to produce cigarettes with a desired length.
  • Filter rods are made of filter tow. This is cellulose acetate, which is processed into a bundle of continuous filaments.
  • the EP 0 654 224 B1 describes an arrangement for processing at least one strip of filter material for the tobacco processing industry.
  • the strip is removed from a supply and fed to a stretching line with a stretching device.
  • the stretching line is arranged downstream of an application line with an application device for applying application liquid which dissolves the filter material to the strip.
  • the order line is a shirring with a width of the strip diminishing shirring downstream.
  • the arrangement is characterized the stretching stretch, the application path and the gathering path form at least approximately the shape of a U or a V.
  • Behind the Raffddle the strip passes into a transport nozzle and is then a filter rod machine, for example of one of the types KDF2 to 5 of Hauni Maschinenbau AG, supplied where the filter rod is wrapped with paper and divided.
  • the plasticizer plasticizer
  • the paper fixes the shape of the filter rod.
  • the EP 0 941 673 B1 describes a further development which is intended to achieve a homogenous preparation and distribution of the filter material in the filter strand even at high conveying speeds.
  • the filter tow is exposed at least on a section of the conveying path of a flowing in the conveying direction of the filter tempest air flow.
  • Such filter rods are also wrapped with a filter paper (tipping paper) and fixed at the end of a cigarette paper wrapped rod made of tobacco material.
  • the EP 2 236 321 B1 describes a method for producing paperless filter rods in which the triacetin pretreated filter tow after the exit from the transport nozzle in a format device of a portion of an endless, porous format strip laterally bordered and further promoted.
  • a format band steam is blown into the filter tow at several stabilization stations to fix the shape of the filter tow, and then air is blown in to dry the filter tow.
  • supersaturated water vapor is used with the finest droplets.
  • the water vapor is blown from collecting chambers via annular gaps with narrow gap widths at several stabilization stations in the filter tow.
  • the filter tow is cut into two half strips which are each fed into a separate transport nozzle to form a half filter tow band.
  • the two transport nozzles are inclined to each other and directed to the input of the format device, where the filter towers superimposed detected by the format tape and further treated.
  • a disadvantage is the high dust development ( tow fly) when cutting the filter tow strip.
  • the filters made from the processed filter material have visible loose fibers and there is a risk of inhaling fibers with pollutants adsorbed thereto and stored during smoking.
  • the present invention seeks to provide a method and a system for processing at least one strip of filter material, in which the use of material and drying effort is reduced and the strength of the processed strip is improved.
  • the object is achieved by a method having the features of claim 1. Furthermore, the object is achieved by a method having the features of claim 8 solved. Advantageous embodiments of the method are specified in subclaims.
  • a filter tow strip drawn from a supply and stretched along a conveyor stretch is stretched on the filter tow a plasticizer dissolving the filter material, preferably triacetin, then the filter tow strip is brought together and shaped (bundled) in a transport nozzle and dry steam, preferably dry steam, is blown into the shaped filter tow.
  • the fibers of the filter tow are crosslinked by applying plasticizers and bundling (bundling) the filter tow.
  • plasticizers and bundling bundling
  • a particularly effective fixation (stabilization) of the shape of the filter tow strip is achieved.
  • the dry water vapor spreads particularly well and evenly over the fibers of the filter tow band.
  • the heat and mass transfer from the steam to the fibers is thus particularly intense.
  • the inventive method in the production of a starting material for paperless filter rods of sufficient stability and hardness comes with lower amounts of cellulose acetate and plasticizer.
  • the reduced use of plasticizers, preferably triacetin can improve the taste and visual appearance of the rod-shaped smoking article.
  • the condensation of water in the filter tow is greatly reduced, so that a softening of the filter tow band can be avoided and longer drying times can be avoided. Rather, the processed filter tow can be used directly for the production of rod-shaped smoking articles be used. As a result, effort for the drying and intermediate storage of the filter material is avoided and further improves the visual appearance of the rod-shaped smoking article. In addition, corrosion of the equipment by water is avoided.
  • Dry steam is used according to the invention. This is superheated steam (superheated steam) with a temperature above the boiling point or saturated steam (dry saturated steam) with a temperature just at the boiling point of the evaporated liquid.
  • the dry steam differs from the conventionally used wet steam in that it contains no condensed liquid portions.
  • Superheated steam is preferably used in the invention because, in comparison with saturated steam, the risk of condensation of liquid due to changes in temperature or pressure is greatly reduced.
  • the steam is injected at a temperature of 110 to 150 ° C and / or at a pressure of 0.4 to 2.0 bar in the filter tow. In these state conditions, a particularly good fixation of the shaped filter tow strip is achieved and the condensation of water is particularly effectively avoided.
  • condensate is removed from the dry water vapor prior to blowing into the filter tow.
  • Condensate can form in particular due to heat losses during the conduction of water vapor through lines from a steam generator to the filter tow.
  • the steam is blown into the filter tow at several positions along the conveying direction of the filter tow strip.
  • the dry steam is blown into the filter tow after application of the plasticizer to the filter tow. It is preferably blown into the filter tow after the filter tow strip has been brought together.
  • the dry steam is blown into the filter tow after the forms of the filter tow strip in the transport nozzle.
  • the dry steam can penetrate particularly well in the already shaped filter tow.
  • the shaped filter tow is bordered by an endless, porous format strip and transported further, and dry steam is blown through the porous format strip into the filter tow strip.
  • conventional format devices can be used.
  • a filter tow strip drawn from a supply and stretched along a conveyor line is stretched on the filter tow a plasticizer dissolving the filter material, preferably triacetin, applied, then the filter tow strips brought together (bundled) and formed in a transport nozzle and by means of a arranged in a nozzle channel of the transport nozzle hollow spindle with at least one outlet in Passage direction of the filter tow strip behind the nozzle channel through the spindle and the outlet through blown steam in the filter tow.
  • the transport nozzle has a nozzle channel in which the filter tow is formed when passing through the transport nozzle.
  • the filter tow can also be wholly or partially merged in the transport nozzle.
  • the transport nozzle has a circular cross section in order to produce a circular cylindrical filter tow, which can be disassembled into circular cylindrical filter rods.
  • the spindle is used to shape the cavity in the shaped filter tow. For this purpose, it may have a circular cross-section, a triangular or star-shaped or another cross-section. In addition, the spindle is used to inject steam.
  • the steam is blown from the inside into the filter tow after the filter tow has been formed in the transport nozzle.
  • a particularly intensive mass transfer to the filter material is achieved. Due to the more intensive heat and mass transfer, the process achieves better fixation with less use of cellulose acetate and plasticizer. Also, the process comes with lower amounts of steam. As a result, the cost of producing the rod-shaped smoking article and its taste and its visual appearance is improved.
  • Dry steam is used for the process according to a preferred embodiment.
  • wet steam is used. Even with the use of wet steam, the intensified fabric transition allows a reduced use of material.
  • dry steam according to one of claims 1 to 7 is blown into the filter tow after the transport nozzle.
  • the plasticizer is sprayed onto the filter tow.
  • the plasticizer is applied very evenly and achieved a particularly good crosslinking, so that plasticizer can be saved.
  • the plasticizer is applied by brushing, although the brush application is inferior to nozzle spray because the droplet size of the plasticizer is more undefined.
  • the filter tow is loaded with at most 10% by weight and at least 1% facial triacetin.
  • the shaped filter tow is dried after blowing steam.
  • condensed water can be removed from the shaped filter tow.
  • dry steam the cost of drying the filter tow can be significantly reduced over conventional processes.
  • the filter tow is dried by blowing in air.
  • air This may be, for example, heated air or air at ambient temperature.
  • a plant for processing at least one strip of filter material for producing filter rods for rod-shaped articles of the tobacco-processing industry comprises a stretching device, which acts on a stretched filter strip withdrawn from a supply and spread along a stretching path, a on the filter tow along areferssrange a the filter material-solving application liquid, preferably triacetin, applying applicator, a the filter tow merging merge means and the filter tow forming transport nozzle, wherein in the direction of the filter tow band behind the transport nozzle at least one injector for dry steam with at least one on the Molded filter tow strip directed outlet for blowing steam is present in the molded filter tow strips which associate one with the exit having dry steam feed inlet and a source of dry steam, preferably dry steam, connected to the inlet.
  • the dry steam source includes a steam generator, a steam superheater, and a device for removing condensate from the dry steam.
  • the injection device has a housing with a through-channel with a circular cross-section, at least one injection channel opening into the through-channel in the housing and a perforated format strip running through the through-channel.
  • the format band encloses the shaped filter tow after the transport nozzle and transports it further. In this case, dry steam is blown into the filter material through the injection channel and the perforated format strip.
  • the blow-in channels on the outside of the housing have inlets connected to outlets at the periphery of a manifold for steam.
  • the steam is distributed via the distributor tube to the injection channels in order to inject the dry steam particularly evenly into the filter material.
  • the plant for processing at least one strip of filter material for producing filter rods for rod-shaped articles of the tobacco processing industry comprises a stretching device drawn from a supply and spread filter tow strips along a stretch stretching, one on the filter tow along a job path, an application liquid dissolving the filter material, preferably triacetine, applicator, a convergent filter tow band forming the filter tow, a hollow spindle disposed within the nozzle channel to form a continuous, hollow filter tow, the cavity of the spindle forms a Einblaskanal, at least one outlet of the injection channel in the direction of passage of the filter TertzstMail behind the nozzle channel is arranged and the spindle outside the transport nozzle has an inlet of the injection channel for steam and a source of steam, preferably water vapor, is connected to the inlet.
  • a stretching device drawn from a supply and spread filter tow strips along a stretch stretching, one on the filter tow along a job path, an application liquid dissolving the filter material, preferably tri
  • the plant benefits from the method of claim 8.
  • the plant of claim 17 is at the same time a plant according to claim 13.
  • the source of steam is a source of dry steam.
  • the application device is a spraying device with spray nozzles for spraying the plasticizer on the filter tow.
  • the plant comprises a spreading device, with which the filter tow strip is spread.
  • the spreading device according to a preferred embodiment comprises at least one spreader nozzle.
  • the spreader nozzle spreads compressed air onto the filter tow, which expands the filter tow when passing the spreader nozzle.
  • a drying device which is designed to dry the shaped filter tow strip, is arranged downstream of the injection device in the conveying direction next to the shaped filter tow strip.
  • the drying device is a further Einblas adopted acting on the shaped FiltertowstMail with compressed air, further with at least one directed to the shaped filter towers, further outlet, and at least one connected to the further outlet further inlet, and a connected to the further inlet source of compressed air ,
  • a plant according to the invention comprises a stock 1 with a bale, formed from a filter tow, for example, a meandering deposited 2.
  • the Filter tow 2 is withdrawn vertically in the direction of the arrow (direction of passage of the filter tow) along a withdrawal path 3 and guided over a deflection 4 initially horizontally in the direction of the arrow and then obliquely downward in the direction of the arrow.
  • the filter tow strip before the deflection 4 is guided past one or more first spreader nozzles 5, which is connected to a compressed-air source.
  • the compressed air emerging from the first spreader nozzle 5 spreads the filter tow 2 perpendicular to the transport plane defined by the arrows, so that it is guided in a widened manner over the deflection 4.
  • the filter tow 2 passes through the nip between two motor-driven rollers 10, 11 of a second pair of rollers 12.
  • the filter tow 2 is pulled off the bale by the second pair of rollers 12 and moved along the withdrawal path 3 and the pre-stretching section 6. Due to the withdrawal force exerted by the second pair of rollers 12 on the filter tow 2 and the resistance force exerted by the first pair of rollers 9 on the filter tow 2, the filter tow 2 is pre-stretched.
  • one or more second spreader nozzles 13, which are connected to the compressed air source, are located on the pre-stretching section 6. By emerging from the second spreader nozzle 13 compressed air of the filter tow 2 is further spread perpendicular to the plane spanned by the arrows transport plane.
  • the order section 18 can also be called a "relaxation section”.
  • the application device 22 is preferably a spraying device with one or more arranged below the filter tow strip 2, upwardly directed spray nozzles 23.1. In addition to the spray nozzles 23.1, it has a hood 23.2 which isolates the area of the filter tow strips 2 from passing mist from the environment.
  • a brush device is also suitable as application device 22, with a spray device being preferred.
  • third spreader nozzles 24 which are connected to the compressed air source. By leaving the third spreader nozzle 24 compressed air, the filter tow 2 is further spread perpendicular to the exiting through the arrows transport plane.
  • Fig. 2 to 4 is again a part of the system from the applicator 22 to the transport nozzle 29 shown in more detail. It can also be seen that a hollow spindle 30 is guided from behind into the transport nozzle 29.
  • a hollow spindle 30 is guided from behind into the transport nozzle 29.
  • According to 8 and 9 has the circular cylindrical spindle inside an axial cavity which forms a Einblaskanal 31 and in the wall a plurality of inclined obliquely to the spindle axis outlet channels 32 with outlets 33 on the outer circumference of the spindle 30th
  • the spindle 30 is inserted through the circumferential groove 27 from behind into the transport nozzle 29, so that the spindle 30 projects with the Ausireten 33 in a finger 29.3.
  • the finger 29.3 is arranged in the direction of passage of the filter tow strip 2 behind the transport nozzle.
  • an annular gap 34 At the merge roller 26 of the filter tow 2 is placed around the spindle 30 around.
  • the filter tow 2 is compressed and formed in the annular gap.
  • This process is supported by blowing transport air in an annular distribution channel 29.1 on the inlet side of the transport nozzle 29.
  • the compressed air flows in the direction of the thick arrows of Fig. 5 evenly parallel to the transport direction of the filter tow material 2 through the transport nozzle 29 and finally exits through holes 29.2 on the circumference of the transport nozzle 29.
  • the spindle 30 can be inserted through the circumferential groove 27 during operation of the system from behind into the transport nozzle 29. This makes it possible to first start the system until a shaped filter tow 2 with defined properties emerges from the transport nozzle 29. Thereafter, the spindle 30 can be inserted into the transport nozzle 29 to form a shaped filter tow 2 having a cavity inside.
  • the spindle 30 is preferably sharpened at the insertion end.
  • the format device After passing through the transport nozzle 29, the hollow cylindrical shaped filter tow 2 passes into a format device 35.
  • the format device has a box-like housing 36 with a horizontal through-channel 37 with a circular cross-section, through which a section of an endless, porous format strip 38 is passed.
  • the format belt 38 is placed around the shaped filter tow 2 by suitable guide means in the passageway 37 and transports it further behind the transport nozzle 29.
  • the Fig. 4 and 9 show the bordering of the molded filter tow 2 by the format belt 38.
  • the format device 35 in the housing 36 has at least one injection channel 39 opening into the through-channel.
  • the exit of the blow-in duct 39 opens into the through-passage 37 and the inlet of the inlet duct is connected to an outlet 40 on the circumference of a distributor pipe 41 for steam.
  • Another outlet 40 of the manifold 41 is connected to one end of the spindle 30 to feed steam into the injection port 31 of the spindle 30.
  • Of the Steam exits the exit 33 of the spindle in the finger 29.3 and enters the formed filter tow 2.
  • Dry steam is used. This is preferably water vapor.
  • the dry steam is superheated steam or dry saturated steam.
  • it is fed into the distribution pipe 41 at a pressure of 0.4 to 2.0 bar and a temperature of 110 to 140 ° C.
  • the dry steam is generated by first supplying water to a water softener 42 which removes trace elements such as calcium, magnesium, and certain other hard water metal cations.
  • the softened water is evaporated in an evaporator 43, the steam having a pressure of 5-10 bar.
  • the steam is supplied to a steam superheater 44, which generates superheated steam at a temperature adjustable in the range of 200-250 ° C.
  • the superheated steam is adjusted via a pressure control system 45 with a condensate trap to a pressure of 0.4 - 2 bar.
  • the steam temperature is 110 - 140 ° C when leaving the distributor pipe.
  • the filter tow 2 By feeding the dry steam into the filter tow 2 after forming the filter tow 2 and further transporting the shaped filter tow 2 in the format means 35, the filter tow 2 is fixed.
  • the filter tow 2 can be produced using lesser amounts of cellulose acetate and plasticizer. A complex drying is basically not required.
  • it may be dried by blowing in ambient air or preheated air in or after the format device 35.
  • the fixed filter tow 2 can be further processed directly.
  • the filter tow 2 can be fed after leaving the format means 35 of a filter rod machine type KDF4 or KDF5 Hauni Maschinenbau AG.
  • the filter rods produced from the filter tow 2 set off less flavorings and are visually appealing.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP15178912.0A 2015-07-29 2015-07-29 Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac Withdrawn EP3123877A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15178912.0A EP3123877A1 (fr) 2015-07-29 2015-07-29 Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15178912.0A EP3123877A1 (fr) 2015-07-29 2015-07-29 Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac

Publications (1)

Publication Number Publication Date
EP3123877A1 true EP3123877A1 (fr) 2017-02-01

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EP15178912.0A Withdrawn EP3123877A1 (fr) 2015-07-29 2015-07-29 Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107568784A (zh) * 2017-10-12 2018-01-12 云南中烟工业有限责任公司 一种具有高透滤棒的卷烟及其制备方法
CN113661066A (zh) * 2019-03-28 2021-11-16 菲利普莫里斯生产公司 形成连续管状杆的成形设备和方法
CN114568745A (zh) * 2020-11-30 2022-06-03 上海烟草集团有限责任公司 一种空腔滤嘴及其生产设备、生产方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095343A (en) * 1960-09-15 1963-06-25 United States Filter Corp Method for treating continuous filamentary tows
US4549875A (en) * 1983-06-02 1985-10-29 R. J. Reynolds Tobacco Co. Manufacture of tobacco smoke filters
EP0654224B1 (fr) 1993-11-24 2001-05-02 Hauni Maschinenbau Aktiengesellschaft Dispositif pour le traitement d'une bande de matière filtrante
EP0941673B1 (fr) 1998-03-13 2002-08-21 Hauni Maschinenbau AG Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac
EP2636321B1 (fr) 2012-03-05 2014-10-01 Montrade S.r.l. Procédé et machine de production de tiges de filtre sans papier pour articles à fumer
EP2868214A1 (fr) * 2013-10-31 2015-05-06 HAUNI Maschinenbau AG Dispositif de fabrication d'une tige de filtre et machine de l'industrie de traitement du tabac

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095343A (en) * 1960-09-15 1963-06-25 United States Filter Corp Method for treating continuous filamentary tows
US4549875A (en) * 1983-06-02 1985-10-29 R. J. Reynolds Tobacco Co. Manufacture of tobacco smoke filters
EP0654224B1 (fr) 1993-11-24 2001-05-02 Hauni Maschinenbau Aktiengesellschaft Dispositif pour le traitement d'une bande de matière filtrante
EP0941673B1 (fr) 1998-03-13 2002-08-21 Hauni Maschinenbau AG Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac
EP2636321B1 (fr) 2012-03-05 2014-10-01 Montrade S.r.l. Procédé et machine de production de tiges de filtre sans papier pour articles à fumer
EP2868214A1 (fr) * 2013-10-31 2015-05-06 HAUNI Maschinenbau AG Dispositif de fabrication d'une tige de filtre et machine de l'industrie de traitement du tabac

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107568784A (zh) * 2017-10-12 2018-01-12 云南中烟工业有限责任公司 一种具有高透滤棒的卷烟及其制备方法
CN113661066A (zh) * 2019-03-28 2021-11-16 菲利普莫里斯生产公司 形成连续管状杆的成形设备和方法
CN114568745A (zh) * 2020-11-30 2022-06-03 上海烟草集团有限责任公司 一种空腔滤嘴及其生产设备、生产方法

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