KR102692206B1 - Tobacco-containing consumables for aerosol-generating devices - Google Patents

Abstract

A non-combustible tobacco article for use with a heat source to generate an inhalable aerosol, comprising at least one tobacco derived portion, at least one distal filter portion, and at least one oral end filter portion held together in an overlap, the complete The articles have a compression coefficient of <10% in the longitudinal axis.

Description

Tobacco-containing consumables for aerosol-generating devices

The present invention relates to a tobacco-containing consumable article for use in an aerosol-generating device comprising at least one tobacco derived portion, a distal filter portion and an oral end filter portion held together in a continuous overlap with a compression coefficient of less than 10%. .

Many alternatives to traditional combustible tobacco products have been released recently.

Electronic cigarettes use battery power to heat a nicotine-containing aerosol-generating liquid to form an inhalable nicotine-containing aerosol. These products tend not to contain tobacco.

Heated tobacco products use a variety of energy sources and means to heat tobacco-containing consumables to produce an inhalable aerosol containing some ingredients derived from tobacco, including flavoring and nicotine.

Additionally, there are a variety of "hybrid" products that can combine technologies from both electronic cigarettes and heated tobacco products to create an inhalable nicotine-containing aerosol, in which flavor and nicotine can originate from the aerosol-generating liquid or tobacco portion.

Specific examples of existing technology include:

WO9639880 and WO2013190036 have a distal end comprising tobacco-derived material, typically a crimped reconstituted tobacco sheet, an oral end filter, typically comprising a number of segments, and an overwrap made of paper. Describes a cigarette-type cylindrical consumable article. The article is intended to be electrically heated to produce an inhalable nicotine-containing aerosol.

Additionally, WO2016207407 describes tobacco consumables intended for consumption by heating, namely distal tobacco derived portions, oral end filters, and paper overlaps.

US2009151717 describes small metallic capsules (“pods”) with foil lids that are perforated prior to use. Inside the pod, tobacco-derived materials typically include finely ground tobacco particles, humectants, and flavoring agents.

WO2016159013 describes a device in which an aerosol is generated by heating a liquid and then passing it through a separate tobacco portion, which imparts flavoring and/or nicotine to the final aerosol. The tobacco portion may be retained within a molded plastic capsule with a mesh at the distal end and a small filter at the oral end.

WO2016135342 describes a product that operates in a similar way to that described in WO2016159013, but the tobacco portion and the liquid heating unit are comprised of one unit. The tobacco portion is held within a molded plastic structure with a filter at the oral end.

There are some known limitations regarding consumable units for these products.

For example, in the case of consumables manufactured using tobacco stick manufacturing techniques, a user may inadvertently ignite the consumable and potentially inhale unintended and/or undesirable combustion products. Additionally, consumables using plastic or metal capsules require custom manufacturing machinery, have limited environmental recyclability, and have high material and manufacturing costs.

Described herein.

The present invention describes a tobacco-containing consumable article for use in an aerosol-generating device comprising at least one tobacco derived portion, a distal filter portion and an oral end filter portion held together in a continuous overlap with a compression coefficient of less than 10%. .

The article may be subjected to a total pressure drop of <120 mm water column along its longitudinal axis. The pressure drop is preferably in the range of 5 to 40 mm of water column, and more preferably in the range of 10 to 30 mm of water column.

These consumables can be manufactured using conventional cavity filter manufacturing techniques that are well known within the tobacco industry and are presented for example in US Pat. No. 6,537,186. In these prior art devices, the filter is manufactured from a distal filter portion, typically a cavity to receive a solid particulate material such as activated carbon, and an oral end filter portion, all held together by a paper overlap. There have also been products that use tobacco derived materials within the cavity to flavor or dilute the smoke as it passes through the filter.

Accordingly, the present invention enables the manufacture of consumables on readily available high-speed manufacturing machines using proven manufacturing techniques that have low material and manufacturing costs, material and design flexibility, and are compatible with a variety of aerosol generating systems. You can.

In some embodiments, the article may modify one or more other organoleptic properties of the aerosol (e.g., altering the feel or smell or appearance of the aerosol for a user).

In some embodiments, the article may include a material that modifies the PH of the aerosol (e.g., modifies the acidity or basicity of the aerosol) by decreasing or increasing the PH.

In some embodiments, articles can modify (e.g., reduce) the amount of aldehydes in an aerosol.

As described herein, a non-combustible tobacco article means an article containing tobacco-derived portions that are not intended, in whole or in part, to combust during use, and in which no part of the article is intended to ignite during use. No. Additionally, the construction of the article inhibits ignition through the use of a filter material such as cellulose acetate at both the distal end and the buccal end.

The term aerosol is interpreted to include gases, vapors, droplets, condensates, particulates, and combinations thereof. Inhalable aerosol means an aerosol having an average particle size in the range of 0.1 to 10 μm, more preferably 0.1 to 1.5 μm, as measured by laser dispersion.

Described herein.

Embodiments of the present invention will now be described with reference to the accompanying drawings, in which:
Figure 1 is a side schematic view of an article according to the invention;
Figure 2 is a side schematic view of an article according to the invention showing the longitudinal axis;
Figure 3 is a side perspective view of an exemplary filter portion and overlap for use in the present invention using multiple layers in the overlap thereof;
4, 5 and 6 are side schematic views of exemplary articles according to the invention with different overlap configurations;
Figures 7 and 8 are schematic diagrams of devices used in conjunction with the articles of the present invention;
Figure 9 shows an exemplary filter portion that may be used in articles of the present invention; and
Figure 10 is a schematic diagram of an alternative method of generating steam using articles of the present invention.

Figure 1 shows the basic structure of the article of the present invention. The oral end 3 is the end of the article intended as an outlet for the aerosol towards the user. The distal end 1 is the opposite end of the article, typically intended as an intake port for air and other materials into the article. The tobacco part is in between. By way of example, the length of the tobacco portion 2 ranges from 7 mm to 17 mm, preferably from 10 mm to 13 mm, and the length of each filter portion 1, 3 ranges from 3 mm to 13 mm. It is in the range of 15 mm, preferably in the range of 4 mm to 6 mm, and the diameter of the flavor container is in the range of 5 mm to 8.5 mm. The dimensions are a combination of the need to provide sufficient material within the tobacco section (2), the need to provide the desired flavor effect while ensuring balance between the three sections as a whole, and the need to provide adequate pressure drop while maintaining overall product strength and compressibility. It depends on

In the embodiment of Figure 1, portion 2 may include single grade tobacco, mixed tobacco grades, leaves, tobacco strips, powder, regenerated tobacco, refined tobacco, extracted tobacco, processed tobacco, tobacco extracts and mixtures thereof. This is the tobacco-derived part. Tobacco derived portions 2 can be made from tobacco plants by methods including harvesting, drying, cutting, chopping, grinding, extracting, regenerating, extruding, and combinations thereof. The tobacco derived portion 2 may be in the physical form of leaves, tobacco strips, powder, recycled sheets, pressed, folded, molded, beaded, granular and mixtures thereof. In most embodiments, the tobacco portion 2 includes tobacco, but other plants or flavors may also be used. In a variant of the illustrated embodiment, the tobacco portion 2 can be used as cut tobacco sticks, or completely or partially as shredded tobacco. The choice of material for the tobacco portion 2 depends on a number of factors such as the desired level of flavor transfer and the requirement to meet an appropriate pressure drop.

In a preferred embodiment of the invention, the steps include carefully selecting a blend of dry tobacco grades based on desired taste characteristics and minimization of undesirable chemicals; Reducing the particle size of the plant material by cutting or grinding it to a size suitable for further processing; processing the tobacco material to further reduce undesirable components through a suitable combination of processes including liquid extraction, heat treatment, pressure treatment and chemical treatment; adding raw materials including flavorants and humectants to create an aerosol; Regenerating cigarettes into sheet form; The tobacco derived portion 2 is obtained by drying to produce a stable material that is added to the tobacco article as is, either as pressed sheets or as fragments of cut or sliced sheets. Although the above steps can be interchanged, it is best for size reduction to occur at an early stage in the process, with extraction occurring prior to the addition of flavor to minimize loss of added flavor. Drying is usually the final step, but flavoring/humectants may be added last.

In some embodiments, tobacco cut pieces are used in the tobacco portion 2, in which case the density of the tobacco cut pieces is in the range of 150 to 500 mg per cm, preferably in the range of 180 to 280 mg per cm, and most preferably Typically, it may range from 200 to 250 mg per cm3. This size control ensures the supply of the largest possible amount of tobacco within the volume of the tobacco portion 2, so that maximum conversion to aerosol is achieved.

In some embodiments, the tobacco portion 2 includes flavoring material that has been ground or otherwise processed or formed to form particles, e.g., powders, granules, grains, fibers, beads, pellets, etc., e.g., to form articles. The amount or active surface area of flavoring material is increased to maximize the amount of flavoring imparted to the aerosol stream and/or vapor flowing through.

As used herein, the terms “flavor” and “flavor” may refer to ingredients that can be used to create a desired taste or aroma in products for adult consumers, where local regulations allow. These include extracts (e.g. licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, anise seed, cinnamon, herbs, wintergreen, cherry, berry, peach, apple, dram) Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cinnamon, caraway, cognac, jasmine, ylang-ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or mint oils from any species of the genus Mentha), spices, bitter receptor site blockers, Sensory receptor site activators or irritants, sugars and/or sweeteners (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and charcoal, chlorophyll. , may contain minerals, botanicals, or other additives such as mouth fresheners. These may be imitations, synthetic or natural raw materials or mixtures thereof. They may be in any suitable form, for example oil, liquid, solid, or powder. For example, a liquid, oil, or other such fluid flavoring agent can be impregnated into a porous solid material to impart flavor and/or other properties to the porous solid material. As such, the liquid or oil is a constituent of the material with which it is impregnated.

In order to prevent excessive pressure drop, it is desirable to have the long axis of the tobacco derived sheet extending parallel to the longitudinal axis 6 of the article of the invention so as to form a path for air to pass through (see section 2 in Figure 2 ). In an alternative preferred embodiment of the present invention, the tobacco derived material is prepared as above, except that the tobacco derived material may be recycled in granular or particulate form and then added to the present invention. Preferably, the granular or particulate tobacco derived material is produced by extrusion, as this ensures uniform distribution of any added flavoring or wetting agent as well as consistency of particle size and shape.

In the specific case of the material of the tobacco portion (2) comprising continuous fiber ground tobacco, the tobacco weight is preferably in the range of 2 mg to 6 mg per mm of tobacco portion.

In the specific case of the material of the tobacco portion 2 comprising short cut fiber ground tobacco, the tobacco weight preferably ranges from 6 mg to 15 mg per mm of the tobacco portion 2.

Figure 2 shows the longitudinal axis 6 of the article of the invention, which extends from the oral end 3 to the distal end 1 and is considered the long axis of the article. Other axes are considered perpendicular to this longitudinal axis. The definition of these axes is important in the measurement of key physical parameters that control the integrity of the product during storage and use, and the integrity of the sensory experience received by the user.

“Pressure drop” or “draw resistance” is measured using Coresta recommended method 41 (https://www.coresta.org/sites/default/files/technical_documents/main/CRM_41-update2_0.pdf); , expressed in millimeters water column equivalent. These design features determine how the user can extract large amounts of aerosol from the consumable/device with reasonable effort.

“Compression” is measured along the longitudinal axis 6 by applying a fixed force of 10 newtons at point 5 (see Figure 2) and measuring the deflection distance as a percentage of the total product length. These measurements can be performed using equipment such as Instron's Electromechanical Instrument 3300.

In Figure 1, portion 4 represents an “overlap”: one or more sheets of material providing the outer surface of the article are comprised of separate elements (distal end filter 1, tobacco derived portion 2 and buccal end filter). 3)) acts to keep the objects in order with respect to each other and provides the article with sufficient structural strength for the necessary manipulations by the user, especially during insertion and separation with the associated device. The overlap 4 typically comprises paper, plastic, foil, laminate or a combination thereof. The overlap 4 may comprise a single layer spanning the entire article, or may have multiple layers at different points, as shown at portions 8 and 9 in Figure 3, as required depending on the basic construction of the article. As can be seen, for example, a multi-segment filter portion is typically maintained with an outer wrapper to assist in the manufacturing process. Overwraps particularly suitable for the present invention preferably have a compound mass (gsm) in the range of 20 to 100 grams per square meter. A preferred embodiment uses a rigid, non-porous overlap in the range of 40 to 200 g/m ² made of transparent, chalk-free cellulose-based paper overprinted with metallic ink. The lower limit on compound mass is generally determined by the opacity and physical strength requirements for the final consumable product. The upper limit of the compound mass range is set by the operability of the machine, which can operate if the overlapping material is too thick. In view of the preferred embodiment, the use of a rigid, non-porous overlap without chalk is advantageous in that this allows printing to be performed on specific areas to provide molded windows, logos, etc.

In some embodiments, the overlap 4 acts as a liquid-resistant barrier that prevents liquid, for example condensation that forms around the article when in use, from entering the interior of the article and making the tobacco portion 2 soggy. It is configured to do so. In one embodiment, the liquid resistant wrapping paper layer used in the overlap 4 comprises a barrier material or paper impregnated with Natureflex or another suitable thin polymer film.

In a preferred embodiment of the invention, the overlap 4 is supplied as a continuously rolled material that is transversely curved, shaped into a continuous cylinder and attached to itself using an adhesive. With this continuous cylindrical form of the overlap, the internal elements, namely the filter parts 1, 3 and the tobacco derivative part 2, are suitably supplied and attached to the overlap 4. These continuous cylinders are then cut into separate tobacco articles. This process can be carried out in a continuous manner using machinery for manufacturing cavity filters as known in the art. In an alternative preferred embodiment, the continuously rolled overlap is formed into a helix and attached to itself to form a continuous cylindrical shape with a resulting helical seam (as shown in Figure 4). The spiral arrangement has the additional advantage of providing additional structural rigidity to the finished article by preventing transverse compression of the seam.

4, 5, and 6 show exemplary embodiments in which region 11 is transparent and region 12 is opaque. Transparent overlap is defined as a feature that allows users to visually perceive the contents inside an item. Suitable properties are available from transparent, semi-opaque and translucent materials. Accordingly, by altering the composition of the overlap 4 in that area by means including reducing the amount of print, reducing the amount of the opaque layer, removing the foil layer, or a combination thereof, within the overlap 4 A transparent area may be created. A preferred embodiment uses transparent cellulose-based paper made opaque with metallic ink to provide an overall foil-like appearance, with areas free of metallic ink serving as transparent windows 11 for viewing the contents inside the article. Most preferably, this transparent window 11 is aligned with the tobacco derived portion 2.

During storage and use, the physical properties of the overlap 4 may be affected by absorption of aerosol components and volatile liquids. For example, paper-based overlaps can absorb moisture and other liquids, which softens the overlap and reduces its structural integrity; This is undesirable as it may affect the user's ability to separate the item from the associated device. Additionally, this may have a detrimental effect on the visual aesthetics of the overlap, for example causing staining. Accordingly, it is desirable to provide an overlap that inhibits absorption and thereby maintains desirable structural properties and appearance. To inhibit absorption, the overlap may be made of plastic and foil; May have a plastic or foil inner layer; may have an internal surface coated with varnish or lacquer; It may be made of paper with a low tendency to absorb liquid, or it may be made of a combination of these. These may include trilaminate foils with a PE:Al:PET type composition. In a preferred embodiment, the overlap is a transparent, chalk-free cellulose-based paper that exhibits a low absorption tendency. An alternative preferred embodiment of the overlap 4 is a transparent plastic film. An alternative preferred embodiment of the overlap 4 is a paper-based material coated with a layer of alkyl ketene dimer (AKD) on the inner surface.

The filter portion (parts 1 and 3 in FIG. 1 ) is a physical barrier, so as to allow passage of desired air and aerosols while maintaining the overall structural integrity of the tobacco article in its mostly short axis and containing the tobacco derived portion 2. It acts as In some embodiments, the material of the filter is moisture resistant so that the filter portions 1 and 3 maintain their shape during use. Additionally, the oral end filter portion 3 may act to prevent undesirable fine dust particles from the tobacco derived portion 2 from reaching the user and to remove aerosol particles larger than those of an inhaled aerosol.

Filter parts 1 and 3 may each be provided as filter part 21. In order to improve the airflow through the invention, the pressure drop in the filter part 21 (shown in Figure 9) can be reduced by the introduction of one or more airflow channels 22 along the longitudinal axis. The airflow channel 22 may pass the entire length of the filter section. Preferably, the airflow channel 22 passes up to 95% of the length of the filter section, leaving at least 5% of the filter section intact to retain tobacco particles. Once the filter portion 21 is formed, airflow channels 22 can be introduced by using a laser to burn the filter material or by using mechanical pins to perforate the channels 22. Preferably, the airflow channels 22 are formed by introducing mandrels or fins into the filter material during the forming process to shape the channels.

In some embodiments, the pressure difference across both parts 1, 3 ranges from 0.1 mm to 2 mm of water column per mm length of the section.

Filter portion 21 typically includes polymers such as cellulose acetate, paper, plastic, polyethylene, polypropylene or polylactic acid, and combinations thereof. In a preferred embodiment of the invention, the filter portion 21 comprises cellulose acetate fibers plasticized with up to 15% triacetin. Filter portion 21 may be homogeneous, or may include multiple adjacent segments. The filter portion 21, and more preferably the oral end filter portion 3, may contain diluents, flavoring agents and aesthetic elements.

Different additional flavor components may be placed in each of the distal filter parts 1 , 3 (e.g. a flavor capsule in the distal part 1 and a flavor thread or line in the oral part 3).

In some embodiments, the filter portions 1 and 3 include fibrous materials, such as filter materials from traditional cigarettes, including paper including cellulose acetate fibers, polypropylene fibers, polyester fibers, and pressed paper. It may be, for example, a fibrous material typically used as. Other materials may be used, such as nylon.

In another embodiment, the material of the tobacco portion (2) and the material of the two filter portions (1, 3) are formed from a plurality of randomly oriented short-axis CA fibers (e.g. cut using a so-called Tourmalin device). fibers). For example, in the shredded tobacco of the tobacco portion 2, the single-axis CA fibers may be used only enough to keep the shredded tobacco in a rod shape. The advantage of such a device is that it allows for a lower pressure drop of the vapor and/or aerosol flow and, additionally, reduces or requires plasticizers, for example triacetin, to maintain the rod shape as required for continuous fiber CA. No. Additionally, using shortened CA fibers allows for the use of less CA and more cigarettes than using long continuous CA fibers.

In some embodiments, the weight percent of the first flavoring component (and any other components, such as charcoal, plasticizer) of the filter portions 1, 3 relative to the weight of the material of the tobacco portion 2 ranges from 10% to 90%. %, preferably in the range of 70% to 90%.

In the specific case of the tobacco portion (2) comprising ground tobacco and the article comprising continuous fibres, the weight of the tobacco relative to the weight of the fibers preferably ranges from 40% to 60%, most preferably from 45% to 45%. It is in the range of 55%. The fiber weight is preferably in the range of 75% to 95%, most preferably in the range of 80% to 90%.

Diluents remove undesirable chemicals from aerosols and include solid particles of carbon, activated carbon, pyrolytically derived carbonaceous resins, silica, chemically activated derivatives of carbon and silica, metal-based catalysts, and mixtures thereof. do.

Flavoring agents add desirable sensory properties to the aerosol and can be present in the tobacco derived portion, filter portion and combinations thereof. Common flavoring agents include menthol, mint, peppermint, vanilla, licorice, fruit extracts, esters, acetals, fructals, and combinations thereof. The flavoring agent may be present within a filter matrix, a tobacco derived material, may be present in flavor threads, beads, crushable capsules, non-crushable capsules, may be encapsulated within a protective matrix, may be encapsulated within a molecule comprising a cyclodextrin. It can be encapsulated in a combination of these.

Aesthetic elements include colorants dispersed within the filter matrix or confined within specific areas, and filters that are molded, embedded or grooved to form distinctive patterns, logos, or combinations thereof. This is shown in Figure 3 which shows an exemplary filter component providing an indented portion 10 at the oral end. Together with the component 7 it can be provided an oral filter part 3 with an indentation 10 therein for use in articles. This structure provides an aesthetically pleasing configuration that can contribute to product strength through the use of laminated overlaps (4). Additionally, this allows the possibility of supplying shorter filter elements 7 which can reduce the total pressure drop. In such embodiments, the filter portion 7 is generally at least 6 mm long to ensure that the tobacco portion 2 retains material that still provides adequate structural integrity while controlling the pressure drop and compressibility across the entire article.

7 and 8 illustrate the use of the present invention in an electronic cigarette as an aerosol generating device. The device uses battery power 14 to heat a resistive wire 17 to volatilize the e-liquid from the reservoir 16, the liquid typically being nicotine-free. The article 19 of the invention is inserted into the electronic cigarette device at point 18. The first aerosol generated by the resistive wire 17 passes through the article 19 and is transformed to produce an inhalable aerosol 20. Modifications of the first aerosol include the addition of nicotine and other flavoring agents according to the invention. Modifications may also include removal of undesirable chemical components through diluents, and removal of undesirable aerosols and other particles from aerosols.

In an alternative embodiment, the first aerosol additionally comprises chemicals to assist incorporation of desired chemicals from the tobacco derived portion 2 into the aerosol. Preferably, the first aerosol comprises a volatile acid, which acts to incorporate freebase nicotine from the tobacco derived portion 2 thereby increasing the amount of nicotine in the inhaled aerosol. Suitable volatile acids include ascorbic acid, pyruvic acid, and levulinic acid.

Figure 10 shows an alternative use of the invention, whereby the invention is incorporated into a device with a power source 14 that uses a heat source 23 to directly heat the tobacco portion 2. The action of heat by the associated device releases volatile components from the invention, forming an inhalable aerosol. The heat source 23 includes heating means that are either electrically driven or chemically driven. Electrically powered options include metallic heating elements, resistive wires, thin film heaters, ceramic heaters, and combinations thereof, along with batteries or cells. Alternatively, the electrically driven heat source 23 may rely on induction, whereby an alternating electromagnetic field is generated, resulting in heat generation in a suitably placed susceptor element 24 . Since the efficiency of induction is improved if the susceptor element 24 is immediately adjacent to the material to be heated, it is best if the susceptor element 24 is placed within the tobacco derived material or as part of an overlap in contact with the tobacco derived portion. . For induction heating, the power source and circuit may be configured to operate at high frequencies. Preferably, the power supply and circuitry can be configured to operate at a frequency of about 80 kHz to 500 kHz, preferably about 150 kHz to 250 kHz, more preferably about 200 kHz, and the assembly can be configured to operate at a frequency of about 200 kHz. It can be arranged to operate with a fluctuating electromagnetic field having a magnetic flux density of about 0.5 Tesla (T) to about 2.0 T at the point. The induction coil may include any suitable material, but typically the induction coil may include Litz wire or Litz cable. The susceptor may include, but is not limited to, one or more of aluminum, iron, nickel, stainless steel, and alloys thereof, such as nickel chromium. By applying an electromagnetic field near the susceptor, heat can be generated due to eddy current and magnetic hysteresis loss, resulting in conversion of energy from electromagnetism to heat.

Heat sources that drive chemical reactions include combustion, oxidation, redox and other exothermic reactions.

Wetting agents are additives that act to retain water in the matrix and include polyols such as propylene glycol, glycerol, PEG of various molecular weights, sugar alcohols such as sorbitol, and combinations thereof. Within the present invention, volatilized humectants also function to generate aerosol droplets. Preferably, the humectant is a mixture of propylene glycol and glycerol.

pH modifiers include acids, bases and buffers that can be used to modify the volatility of chemicals within the tobacco derived portion by altering their ionization state. In particular, free base nicotine, which has a predominantly alkaline pH, is much more volatile than nicotine salts, which have a predominantly acidic pH. In a preferred embodiment, sufficient base is added to the tobacco derived portion to achieve a total pH>7, providing more nicotine available to volatilize into an inhalable aerosol. More preferably, the total pH is >8. Suitable base agents include metal carbonates, metal hydrogen carbonates, metal hydroxides and ammonium salts.

In one embodiment of the invention, the tobacco derived portion (2) has a chemical composition according to the Gothiatek® standard, i.e. a tobacco-specific nitrosamine (NNN + NNK) content of <1 mg/kg and a benzo[ [a]produced by providing a tobacco grade mixture comprising flue cured and air-cured tobacco with pyrene content. Once mixed, the tobacco is first sliced and then ground to form No. By passing through an 18 mesh the size is reduced to give a particle size of =<1 mm. 50% equivalent mass of deionized water; 2% equivalent mass of flavoring agent, a 50:50 mixture of menthol and mint oil; As a pH adjuster at 0.375% equivalent mass, sodium hydroxide is added to the ground tobacco. The resulting tobacco paste is passed through a Coperion extruder connected to a pelletizer at a barrel temperature of 250° C. and a pressure of 4 atm to produce molding material with a particle size of approximately 1.5 mm diameter. The tobacco derived particles are then dried under vacuum to <10% moisture. The dried tobacco particles are then sieved to produce pieces ranging from 0.2 mm to 1.25 mm. The buccal end and distal end filter parts (1, 3) are manufactured using a Hauni filter rod manufacturing machine. The filter parts (1, 3) are made of cellulose acetate tow 6Y17 using 10.1 mg of tow per mm of filter length; plasticized with 12%/wt triacetin; A 26 gsm, 2000CU plugwrap is attached with PVA adhesive. The final filter section dimensions are 8 mm in diameter and 6 mm in length. The assembly of non-combustible tobacco articles is carried out through a Molins cavity filter machine using paper overlap PPW 35 by SWM with a 0.1% AKD coating on the inner surface. The article consists of a 6 mm filter section, a 17 mm cavity with 250 mg of tobacco derived material, and a 6 mm filter section attached with PVA adhesive. This results in a final article with a total pressure drop of 40 to 65 mm of water column and a compression coefficient of -3% in the longitudinal axis.

According to the present invention, by controlling the compression rate of the article, it is easy for the user to operate and separate the steam generating device from the steam generating device without deformation or damage, even though the generation of steam during use potentially degrades the mechanical properties of the article. A device can be provided. By selectively controlling the inhalation pressure, it is possible to ensure a comfortable pressure drop to generate inhalation pressure as the user receives the vapor. Additionally, the present invention ensures that an article for maintaining a suitable vapor generating material can be provided that is aesthetically pleasing and is simple and easy to manufacture.

1: distal end
2: Cigarette part
3: oral end

Claims (16)

A non-combustible tobacco article for use with a heat source to generate an inhalable aerosol, comprising:
comprising at least one tobacco derived portion, at least one distal filter portion, and at least one oral end filter portion held together in an overlap;
wherein the at least one tobacco derived portion comprises a tobacco derived sheet arranged within the tobacco derived portion having a long axis of the tobacco derived sheet extending parallel to the longitudinal axis of the tobacco article;
The finished article has a compression coefficient of <10% in the longitudinal axis,
When a force of 10 Newtons acts toward the tobacco derived portion in the distal filter portion and the buccal end filter portion, the compression coefficient in the longitudinal axis is the deflection distance as a percentage of the length of the article. Non-combustible tobacco products for use together.
According to paragraph 1,
A non-combustible tobacco article arranged to be subjected to a total pressure drop of <120 mm of water longitudinally across it.
According to claim 1 or 2,
A non-combustible tobacco article arranged to modify the first aerosol produced by the heat source to produce the inhalable aerosol in use.
According to claim 1 or 2,
A non-combustible tobacco article arranged to provide volatile components to the inhalable aerosol upon use of the heat source.
According to claim 1 or 2,
A non-combustible tobacco article further comprising said induction element dispersed within said tobacco derived portion such that, in use, electromagnetic energy may be applied to the induction element to generate heat.
According to claim 1 or 2,
A non-combustible tobacco article, wherein the tobacco derived portion comprises at least one from the group of flavoring agents, wetting agents and pH adjusting agents.
According to claim 1 or 2,
A non-combustible tobacco article, wherein the tobacco derived portion includes a flavoring agent, a humectant, and a pH adjusting agent.
According to claim 1 or 2,
and the overlap includes at least one transparent area.
According to claim 1 or 2,
wherein the overlap is arranged to inhibit absorption of volatile and aerosol components in the tobacco derived portion such that the total weight increase due to absorption after use is <10% of the original overlap weight.
According to claim 1 or 2,
and wherein the overlap is wound in a helical direction about the longitudinal axis of the article.
According to claim 1 or 2,
and wherein the oral end filter portion includes at least two distinct regions adjacent together.
According to claim 1 or 2,
wherein the buccal end and distal end filter portions include, separately or in combination, at least one from the group of aesthetic elements, flavoring agents, and diluents.
According to claim 1 or 2,
wherein the buccal end and distal end filter portions include flavoring agents and aesthetic elements separately or in combination.
According to claim 1 or 2,
wherein the buccal end and distal end filter portions include diluents, flavoring agents, and aesthetic elements, separately or in combination.
According to claim 1 or 2,
At least one of the distal filter portion and the buccal end filter portion includes at least one airflow channel in the longitudinal axis.
A method for manufacturing a tobacco article according to claim 1 or 2, comprising:
first forming the distal filter portion and the buccal end filter portion;
disposing the distal filter portion and the oral end filter portion within an overlap in a manner to form a cavity between the distal filter portion and the oral end filter portion;
filling the cavity with the tobacco derived sheet; and
closing the overlap to form an integrated unit,
A method of manufacturing a tobacco article according to claim 1 or 2.