EP3586649B1 - Verfahren zur herstellung eines durch einen trocknungsprozess rekonstituierten tabakblatts - Google Patents

Verfahren zur herstellung eines durch einen trocknungsprozess rekonstituierten tabakblatts Download PDF

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Publication number
EP3586649B1
EP3586649B1 EP18188277.0A EP18188277A EP3586649B1 EP 3586649 B1 EP3586649 B1 EP 3586649B1 EP 18188277 A EP18188277 A EP 18188277A EP 3586649 B1 EP3586649 B1 EP 3586649B1
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Prior art keywords
base sheet
dry
tobacco leaf
coating liquid
drying
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EP18188277.0A
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English (en)
French (fr)
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EP3586649A1 (de
EP3586649C0 (de
Inventor
Dejun JING
Gang Liu
Zaobing MA
Tao Yuan
Zefeng Wang
Yuanfeng FU
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Guangdong Golden Leaf Technology Development Co Ltd
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Guangdong Golden Leaf Technology Development Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices

Definitions

  • the present disclosure relates to the field of reconstituted tobacco leaf production, and particularly to a method for producing a dry-process reconstituted tobacco leaf.
  • the reconstituted tobacco leaf has increasingly wide applications in cigarette industry. Not only is it about simple waste utilization, but also it starts to play an important role in improving cigarette flammability, improving the internal quality of cigarette products, reducing harmful ingredients in cigarettes and reducing tar and nicotine contents, among others.
  • its range of applications is no longer limited to tobacco fillers, but has become wider and wider, e.g. cigarette filter and cigar wrapper.
  • the international situation of tobacco control has become increasingly severe, and tobacco product consumers become more and more concerned about their own health. Given these situations, scientific and technological tobacco staff has been gradually devoting to the development of low-harm tobacco products. Heat-not-burn cigarette is born at this moment. Using reconstituted tobacco leaves as the cigarette core material for heat-not-burn cigarette is not only another expansion of the functions of reconstituted tobacco leaf, but also provides a new path and assistance to the development of heat-not-burn cigarette technology.
  • EP 2 989 905 A1 refers to an apparatus that uses an air-laid paper-making process to produce reconstituted tobacco.
  • the apparatus comprises a fiberizer, a base-sheet forming device, a pulp sizing device and a drying device connected in series.
  • the apparatus is equipped with different interfaces for various materials and an internal humidifying pipeline. Utilizing multiple passages for material transfer helps to improve uniformity of incoming material and controllability.
  • the sized pulp contains more tobacco dusts, tobacco extract, and adhesive agent, which has a higher density. By utilizing this apparatus it can disperse the pulp fully to avoid hot air being unevenly distributed in drying oven from causing excessive drying issue.
  • US 4 542 755 refers to a method of making reconstituted tobacco using a dry-forming process. Fiberized tobacco stems and scrap are combined with tobacco material of a fine particle size. The resulting tobacco mixture is AD:JP:ko conveyed in an airstream and deposited on a moving foraminous surface. An adhesive is incorporated into or applied to the web bonding the tobacco particles into a coherent sheet, and the sheet is dried if necessary. The dried sheet may be divided into leaflets or shredded for further processing as reconstituted tobacco.
  • CN 107 897 996 A refers to a tobacco raw material group and an application thereof in an aspect of preparing heated-noncombustible cigarettes.
  • the tobacco raw material group is prepared by crushing eight raw materials in parts by mass in accordance with compatibility.
  • the purpose of the present disclosure is to provide a method for producing dry-process reconstituted tobacco leaf, which is featured by nearly zero water consumption, environmental friendliness, high comprehensive utilization ratio of tobacco raw materials and high processing adaptability.
  • the present disclosure adopts the following technical solutions.
  • the plant fibers include one or more selected from the group consisting of hemp pulp, bamboo pulp and wood pulp.
  • the tobacco powder is obtained by pulverizing tobacco raw materials under an anhydrous condition.
  • the plant fibers are pulverized and defibered under an anhydrous condition to generate a base sheet by a dry air forming manner, which includes performing a destaticization process on monofilament fibers obtained by the pulverizing and defibering.
  • the step of loading the coating liquid onto the base sheet includes spraying, in a non-physical contact manner, the coating liquid onto the base sheet.
  • the method for producing a dry-process reconstituted tobacco leaf further includes rewinding, calendering and cutting the dry-process reconstituted tobacco leaf, so as to be used as a core material for a cigarette filter or a heat-not-burn cigarette.
  • the step of performing a drying process includes placing the base sheet, on which the coating liquid is loaded, into heated air for drying.
  • the step of loading the coating liquid onto the base sheet and performing a drying process includes:
  • the fiber defibering means includes a fiber frame as well as a rough pulverizer and a fine pulverizer, with the rough pulverizer and the fine pulverizer connected in sequence.
  • the fiber frame is configured to support the plant fibers, and the rough pulverizer and the fine pulverizer are configured to pulverize and defiber the plant fibers.
  • the fiber defibering means further includes a fiber metering means.
  • the rough pulverizer, the fine pulverizer and the fiber metering means are connected in sequence, and the fiber metering means is configured to precisely control output quantity of the fibers.
  • the fiber defibering means further includes a humidifying means.
  • the humidifying means is configured to humidify air within the rough pulverizer, the fine pulverizer and the fiber metering means.
  • the base sheet forming means includes a plurality of fiber delivering tubes, a screening drum, a mesh belt, a plurality of guide rollers and a first negative pressure tank.
  • Each of the plurality of fiber delivering tubes is communicated with the screening drum.
  • the mesh belt is located below the screening drum and configured to gather fibers output from the screening drum, so that the base sheet is formed.
  • the mesh belt is supported and driven by the plurality of guide rollers, so as to operate in cycles.
  • the first negative pressure tank is provided within an area enclosed by the mesh belt and configured to draw the fibers to be gathered on the mesh belt.
  • a break-apart roller is provided within the screening drum.
  • the base sheet forming means includes a humidity controller and a destaticizing mesh
  • the humidity controller is configured to control ambient humidity during a formation process of the base sheet
  • the destaticizing mesh is provided in the screening drum and is configured to reduce static during the formation process of the base sheet formation.
  • the spraying means includes a storage tank, a buffer and a nozzle communicated in sequence.
  • the storage tank is configured to store coating liquid
  • the buffer is configured to adjust flow velocity and pressure of coating liquid.
  • the storage tank is provided with a constant pressurizer and the nozzle is provided with a compressed air inlet.
  • the drying means includes an air circulating means and a drying tank.
  • the air circulating means includes an air circulating passage, a heating means and a negative pressure fan.
  • the heating means is configured to heat air within the air circulating passage
  • the negative pressure fan is configured to drive the heated air within the air circulating passage to circulate.
  • An inlet and an outlet of the air circulating passage are both communicated with the drying tank.
  • the drying tank is configured to store the base sheet to be dried.
  • a guide plate and a second negative pressure tank are provided within the drying tank. The guide plate is configured to guide a flow direction of air in the drying tank. The second negative tank works with the negative pressure fan to ensure circulation of the air.
  • the present disclosure has the following beneficial effects.
  • the method for producing a dry-process reconstituted tobacco leaf includes the steps of:
  • the plant fibers include one or more selected from the group consisting of hemp pulp, bamboo pulp and wood pulp.
  • the plant fibers are pulverized and defibered under an anhydrous condition to generate a base sheet by a dry air forming manner, which includes performing a destaticization process on monofilament fibers obtained by the pulverizing and defibering.
  • the tobacco powder is obtained by pulverizing tobacco raw materials under an anhydrous condition.
  • the smoke agent includes glycerol, propylene glycol and sorbitol, etc.
  • the tobacco essence flavor includes burley tobacco absolute oil, cocoa extractive, tobacco leaf extractive and aromatic tobacco concrete, etc.
  • the step of loading the coating liquid onto the base sheet includes spraying, in a non-physical contact manner, the coating liquid onto the base sheet.
  • the step of performing a drying process includes placing the base sheet, on which the coating liquid is loaded, into heated air for drying. Furthermore, the step of loading the coating liquid onto the base sheet and performing a drying process includes: spraying the coating liquid onto a front face of the base sheet and then performing a drying process, if a back face of the base sheet is under a negative pressure; spraying the coating liquid onto a back face of the base sheet and performing a drying process, if a front face of the base sheet is under a negative pressure.
  • the production process mainly includes the processes of tobacco powder preparation, coating liquid formulation, base sheet forming, coating and drying, adding smoke agent and/or top-note-flavor type tobacco essence flavor, etc.
  • the tobacco raw materials may be pre-treated by means of microorganisms or bio-enzymes, etc., so that the macromolecular substances of the tobacco raw materials become micromolecular substances which facilitate the sensory quality for the products and volatilize more easily.
  • the pre-treated tobacco raw materials after being directly pulverized and screened, are all used in coating liquid formulation, prevent the loss of effective ingredients from the tobacco raw materials, and thereby improving the comprehensive utilization ratio of the raw materials.
  • the process of coating liquid formulation can not only achieve a basic function of the effectively mixing of the tobacco raw materials, adhesive, smoke agent, tobacco essence flavor and other minor ingredients, but also the demand that a large portion of materials e.g. smoke agent and tobacco essence flavor need to be added into the heat-not-burn cigarette core can be satisfied,.
  • This can not only avoid too viscous coating liquid due to the addition of a large portion of smoke agent and tobacco essence flavor or the like, which affects the coating process and thus leads to unstable product quality, but also ensures that no extra pressure will be created to the drying process, such that the process is adjustable, controllable and flexible.
  • the process of base sheet forming is a low quantitative base sheet forming process which can eliminate static flocculation. Not only is the process of base sheet forming applicable to a single addition of common plant fibers e.g. wood pulp, hemp pulp and bamboo pulp, but also the process of base sheet forming allows simultaneous additions of the aforementioned plant fibers, tobacco stems or even various raw fiber materials in special fibers such as tea steams, agarwood, agarwood leaf and liquorice fiber. The process has relatively good adaptability.
  • the process of adding smoke agent and/or top-note-flavor type tobacco essence flavor is an innovative means which is designed to avoid the drying process and ensures, in the case of fully-dried products, that the smoke agent and top-note-flavor type tobacco essence flavor have an obvious influence on the heat-not-burn cigarette quality and fully preserve the highly volatile ingredients. In this way, the qualities of the heat-not-burn cigarette core materials and the cigarette products made from such core materials are further guaranteed.
  • the smoke agent includes but is not limited to glycerol, propylene glycol and sorbitol
  • the top-note-flavor type tobacco essence flavor include but are not limited to burley tobacco absolute oil, cocoa extractive, tobacco leaf extractive and aromatic tobacco concrete.
  • the above materials may be directly added to the coating liquid or added separately, or may be added to the coating liquid after being processed by certain technical means, a method of which includes but is not limited to concentration and microencapsulation, so as to improve the stability and the retention rate of the above materials in the production process.
  • the production process can allow production of the dry-process reconstituted tobacco leaf products for a filter rod and for heat-not-burn cigarettes, and has a relatively good functional expandability.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacture Of Tobacco Products (AREA)

Claims (8)

  1. Ein Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts, dadurch gekennzeichnet, dass es die folgenden Schritte aufweist:
    Pulverisieren und Zerfasern, unter einer wasserfreien Bedingung, von Pflanzenfasern, um eine Basislage zu erzeugen;
    Mischen von Tabakpulver mit Wasser, Klebstoff, Rauchmittel, Tabakessensaroma und Feuchthaltemittel, um eine Beschichtungsflüssigkeit bereitzustellen; und
    Durchführen einer mehrstufigen Beschichtung, um die Beschichtungsflüssigkeit auf die Basislage aufzubringen, gefolgt von einem Trocknungsprozess, um das durch Trockenprozess rekonstituierte Tabakblatt zu erzeugen, wobei die mehrstufige Beschichtung mehrere abwechselnde Zyklen von zwei Schritten des Sprühens und Trocknens aufweist, wobei, wenn die Beschichtungsflüssigkeit auf eine Vorderseite der Basislage gesprüht wird, ein Unterdrucksaugkasten auf einer Rückseite der Basislage für Unterdruckvakuumsaugen vorhanden ist; wenn die Beschichtungsflüssigkeit auf die Rückseite der Basislage gesprüht wird, ein Unterdrucksaugkasten auf der Vorderseite der Basislage für Unterdruckvakuumsaugen vorhanden ist;
    wobei das Rauchmittel Glycerin, Propylenglycol und Sorbitol aufweist und das Tabakessensaroma absolutes Burleytabaköl und Kakaoextrakt und Tabakblattextrakt aufweist.
  2. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass die Pflanzenfasern eines oder mehrere aufweisen, welche ausgewählt aus der Gruppe sind, welche aus Hanfzellstoff, Bambuszellstoff und Holzzellstoff besteht.
  3. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass das Tabakpulver durch Pulverisieren von Tabakrohmaterialien unter einer wasserfreien Bedingung erhalten wird.
  4. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass die Pflanzenfasern unter einer wasserfreien Bedingung pulverisiert und zerfasert werden, um eine Basislage durch eine Trockenluftformungsweise zu erzeugen, welche das Durchführen eines Destatischisierungsprozesses an Monofilamentfasern aufweist, welche durch das Pulverisieren und Zerfasern erhalten werden.
  5. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schritt des Aufbringens der Beschichtungsflüssigkeit auf die Basislage das Sprühen, in einer nichtphysischen Kontaktweise, der Beschichtungsflüssigkeit auf die Basislage aufweist.
  6. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts ferner das Umwickeln, Kalandrieren und Schneiden des durch Trockenprozess rekonstituierten Tabakblatts aufweist, um es als ein Kernmaterial für einen Zigarettenfilter oder eine Heat-Not-Burn-Zigarette zu verwenden.
  7. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schritt des Durchführens eines Trocknungsprozesses das Platzieren, in erwärmter Luft, zum Trocknen, der Basislage aufweist, auf welche die Beschichtungsflüssigkeit aufgebracht wird.
  8. Das Verfahren zum Herstellen eines durch Trockenprozess rekonstituierten Tabakblatts gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schritt des Aufbringens der Beschichtungsflüssigkeit auf die Basislage und des Durchführens eines Trocknungsprozesses aufweist:
    Sprühen der Beschichtungsflüssigkeit auf eine Vorderseite der Basislage und dann Durchführen eines Trocknungsprozesses, wenn eine Rückseite der Basislage unter einem Unterdruck steht;
    Sprühen der Beschichtungsflüssigkeit auf eine Rückseite der Basislage und Durchführen eines Trocknungsprozesses, wenn eine Vorderseite der Basislage unter einem Unterdruck steht.
EP18188277.0A 2018-06-29 2018-08-09 Verfahren zur herstellung eines durch einen trocknungsprozess rekonstituierten tabakblatts Active EP3586649B1 (de)

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CN201810699318.1A CN110652028A (zh) 2018-06-29 2018-06-29 干法再造烟叶、干法再造烟叶生产方法及设备

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CN115777979B (zh) * 2022-11-11 2024-11-26 湖北中烟工业有限责任公司 一种再造烟叶及其制备方法
CN116268524A (zh) * 2023-04-27 2023-06-23 湖北中烟工业有限责任公司 一种干法再造烟叶及其制备方法
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CN107898001A (zh) * 2017-10-23 2018-04-13 广东中烟工业有限责任公司 叶组原料及其在制备加热不燃烧卷烟方面的应用
CN107897996A (zh) * 2017-10-23 2018-04-13 广东中烟工业有限责任公司 烟叶原料组及其在制备加热不燃烧卷烟方面的应用

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EP3586649C0 (de) 2025-04-02
CN110652028A (zh) 2020-01-07
TW202000048A (zh) 2020-01-01

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