TWI826561B - Elongated smoking article and related method, smoking system, and heating device - Google Patents

Abstract

The present invention relates to an elongated smoking article (100) that comprises a cylindrical smoking body (10) with a combustible material and a hollow bore filter element (20) downstream to the cylindrical smoking body (10). The hollow bore filter element (20) comprises a first base area (21) facing the smoking body (10) and a second base area (22) opposite the first base area (21) and a hollow bore (25) extending from the first base area (21) to the second base area (22). The elongated smoking article (100) further comprises a filter membrane (50) that is arranged between the smoking body (10) and the hollow bore filter (20), that comprises at least one filter aperture (55) aligned with the hollow bore (25), that is configured for filtering particles emitted by the heated smoking body (10), that is permeable for vapor emitted by the heated smoking body (10) and has an effective size between 0.5 μm and 1.5 mm. The invention further relates to a method for manufacturing a hollow bore filter for such an elongated smoking article (100). The present invention further refers to a smoking system (300) comprising the elongated smoking article (100) and a heating device (200) for heating the elongated smoking article (100) and also refers to a heating device (200) for such a smoking system (300).

Description

Elongated smoking articles and related methods, smoking systems, and heating devices

The invention relates to an elongated smoking article comprising a smoking body filled with combustible material, and a hollow element downstream of the cylindrical smoking body and containing a first base region facing the smoking body. The filter membrane is disposed between the smoking body and the hollow element and includes at least one filter aperture aligned with the hollow hole in the hollow element, the at least one filter aperture being permeable to the vapor emitted by the heated smoking body and Has an effective size between 0.5μm and 1.5mm. The invention further relates to a smoking system comprising an elongated smoking article of the invention and a heating device for heating the elongated smoking article, and a heating device for such a smoking system.

It is generally believed that smoking exposes smokers to potentially harmful substances. It is generally believed that a large number of potentially harmful substances are produced through the heat generated by igniting and/or burning tobacco and the components of the burning tobacco in its own smoke.

Elongated smoking articles such as (filter) cigarettes or cigarillos generally have a cylindrical shape and contain a smoking body filled with combustible material. Wherein, the combustible material includes tobacco or tobacco-related products, such as shredded tobacco or reconstituted tobacco. To form the smoking body, the combustible material is surrounded by wrapping paper. Typically, cigarettes have a cylindrical filter element aligned with the smoking body. Filter elements constructed to filter combustion gases emitted by freely burning combustible materials Substances, such as tar, and may include cellulose acetate, paper, and/or charcoal. Typically, filter elements are packaged using so-called plug wraps, such as paper plug wraps. The filter element is usually attached to one end of the tobacco rod using a surrounding wrapping material called a tipping paper. Therein, the tipping paper may overlap and be attached to the filter element and the smoking body. Conventional cigarettes of this type are used by lighting the end opposite the filter element and causing the main body of the cigarette to burn. The smoker receives smoke into his mouth by puffing on the filter element of the cigarette.

The combustion of organic materials such as tobacco is known to produce tar and other potentially harmful by-products. Various smoking substitution systems (or "substitute smoking systems") have been proposed to avoid smoking. Such smoking substitution systems may form a nicotine replacement for people who wish to stop smoking and overcome their dependence on nicotine. therapy. In general, smoking alternative systems are intended to provide an alternative to the smoking habit while providing users with an experience and satisfaction similar to traditional smoking and combustible tobacco products. Some smoking alternative systems are designed to mimic traditional Cigarettes and smoking alternative articles in the form of a cylindrical shape with a mouthpiece at one end. The popularity and use of smoking alternative systems has grown over the past few years. There are many different categories of smoking alternative systems, each utilizing a different smoking Smoke alternatives.

One method used in alternative smoking systems is the so-called "heat not burn" ("HNB") method, in which the tobacco (rather than the "e-liquid") is heated or warmed to release steam. The tobacco can be tobacco leaves or blended tobacco. The vapor may contain nicotine and/or flavorings. In the HNB method, the intention is to heat the tobacco rather than burn it, that is, the tobacco does not undergo combustion. Hereinafter, the products used in this HNB method are referred to as heated tobacco products, even when this refers to the unheated state of these tobacco products. In other words, the term heated tobacco product refers to a product that can be used (ie heated) in an HNB type device.

A typical HNB smoking alternative system may include a device and a heated tobacco product as a consumable. Devices and consumables can be constructed to be physically coupled together. Additionally, the heated tobacco product can also be formed into an elongated smoking article and can be used without burning the combustible material of the smoking body. In use At this time, heat can be applied to the smoking body through the heating element of the device, so that the combustible material of the smoking body is heated to a temperature lower than the combustion temperature of the combustible material. Heated combustible material (usually tobacco or tobacco-related products) emits vapors that can be smoked and inhaled by the user. The moisture in the combustible material may be released as steam, and the steam may also be formed from carriers/humectants in the combustible material (including, for example, propylene glycol and/or vegetable glycerin), and in addition from volatile compounds released from the combustible material.

In heated tobacco products, the amount of vapor may be less than the amount of vapor and/or smoke emitted by burning combustible materials. Therefore, the user experience may differ from classic tobacco products. Additionally, when combustible materials are heated, particles may be emitted by the heated combustible materials, and therefore, the emitted vapors are typically filtered before they can reach the user's mouth. However, filtration may also reduce the amount of vapor that can reach the user's mouth, thus further distinguishing the smoking experience from classic tobacco products. Additionally, known heated tobacco products often result in incomplete mixing of the vapor components, that is, the nicotine and carrier are not completely mixed because the vapor components evaporate from the tobacco at different temperatures. Unmixed nicotine gas may also cause an unpleasant sensation to the user.

It is therefore an object of the present invention to overcome or reduce the disadvantages of the prior art and to provide an elongated smoking article constructed for use as a heated tobacco product without burning and providing an improved user experience.

By means of the present invention, one or more of the disadvantages of the prior art can be avoided or at least reduced, in particular by means of an elongated smoking article extending in the longitudinal direction. The elongated smoking article includes a cylindrical smoking body constructed to heat during smoking of the smoking article. Therefore, the smoking body contains a combustible material preferably surrounded by a plug covering.

The elongated smoking article further includes a hollow element disposed (positioned) downstream of the cylindrical smoking body and including a first base region facing the smoking body. The hollow pore filter element further contains a second base region opposite to the first base region and a hollow hole extending through the entire hollow element from the first base region to the second base region. In the context of the present invention, the terms downstream and upstream refer to the direction of flow of vapor components when a user smokes on an elongated smoking body. Preferably, the hollow element is positioned adjacent to the smoking body.

The elongated smoking article according to the present invention further includes a filter film arranged between the smoking body and the hollow element, in particular between the base region of the cylindrical smoking body and the first base region of the hollow element. The filter membrane includes at least one filter pore aligned with the hollow pores, that is, arranged in a section of the filter membrane overlapping the hollow pores. In other words, the filter aperture overlaps the hollow pores in the first base region of the hollow element. The filter aperture has a smaller (effective) size in the first base region of the hollow element than the diameter of the hollow pores. At least one filter aperture is permeable to vapor emitted by the heated smoking body and has an effective size between 0.5 μm and 1.5 mm.

In a preferred embodiment, at least one filter aperture of the filter membrane is configured to filter particles emitted by the heated smoking body. For heated tobacco products, hollow elements as specified below have been shown to provide a satisfactory user experience, in particular by allowing the user to draw vapor with a draw resistance comparable to that of conventional tobacco products. quantity.

However, since the hollow pores extend through the entire filter element, the filtration capacity is limited. The present invention advantageously allows reducing the risk of particles and/or heat from the heated smoking body reaching the user's mouth without significantly increasing the draw resistance experienced by the user. In other words, the filter membrane may advantageously be used in conjunction with a hollow pore filter element or in conjunction with a hollow tube section as described below, or even in place of a hollow pore filter element.

In order to filter particles emitted by the heated smoking body, the at least one filter aperture preferably has a diameter between 0.5 μm and 0.5 mm, more preferably between 1 μm and 0.1 mm, and especially preferably between 10 μm with an effective size between 50μm. Filter openings of this size are particularly suitable for filtration Particles emitted from a heated smoking body.

More preferably, at least one filter aperture of the filter membrane is configured for mixing various components of the steam as the steam passes through the at least one filter aperture. In other words, by providing the filter element with at least one filter aperture downstream of the aerosol-forming matrix, the various components of the vapor are forced to be in the same position and mix as they pass through the at least one filter aperture. Therefore, the user is not exposed to unmixed nicotine gas, and the user experience is further improved.

In embodiments directed primarily to mixed vapor components, the filter membrane may have only a single filter aperture, which may be positioned in the axial center of the filter membrane. In such embodiments, at least one filter aperture has an effective size of between 0.5 mm and 1.5 mm, such as about 1 mm. Filter openings of this size are particularly suitable for mixing the vapor emitted by the smoking body. In addition, the filter membrane may preferably include filter pores with different effective sizes.

The present invention advantageously allows the advantages of hollow elements such as hollow pore filter elements and hollow tube portions to be exploited in heated smoking articles by virtue of the aforementioned beneficial effects of filtration and mixing. Illustratively, the use of filter membranes allows providing heated tobacco products with a draw resistance similar to conventional tobacco products while minimizing the risk of particles or unmixed vapor components reaching the user's mouth. As a result, the user experience when smoking heated tobacco products is significantly enhanced.

However, by positioning additional filter membranes in the flow path of the vapor emitted from the heated smoking body, the vapor can be cooled by the filter membrane. Such cooling may lead to undesirable precipitation of vapor components at the filter membrane. Therefore, the filter membrane is preferably constructed to disperse the heat emitted by the heated smoking body. More preferably, the filter membrane is constructed to disperse heat generated by the device for heating the smoking body. Filter membranes configured to disperse heat emitted by a heated smoking body and/or generated by a device for heating the smoking body provide additional beneficial effects. First, the (heated) filter membrane advantageously improves particle size by slowing the cooling rate of the vapor as it passes through the filter membrane. Research has shown that this slower cooling and therefore the creation of larger particle sizes results in a better vaping experience.

Basically, by dissipating the heat emitted by the heated smoking body and/or generated by the device for heating the smoking body, the filter membrane provides a second heating element that is larger than the heat used for heating the smoking body. The main heat source is slightly cooler. Because this second heating element is equally exposed to the vapor as it passes through the membrane, the temperature difference experienced by the vapor as it moves from the smoking body through the mouthpiece to the user's mouth is reduced, thus producing a slower vapor cooling rate.

Another benefit of the (heated) filter membrane acting as a second heating element is that it allows vapor particles to pass through the filter membrane more easily so that they can later condense into larger particles. In other words, the vapor passing through will not condense on the filter membrane, which means that the filter membrane will not reduce the vapor. In embodiments where the filter membrane is directly adjacent to the smoking body, another benefit is due to secondary heating of the combustible material of the smoking body. Among other things, the heating of the combustible material can be improved by better dispersing the heat generated due to the filter membrane and/or by introducing into the smoking body additional heat generated by the means for heating the smoking body. Such improved heating advantageously benefits the generation of steam by increasing heat transfer across the diameter of the combustible material and reduces preheating time.

In another preferred embodiment, the hollow element is attached in end-to-end relationship to one of the base regions of the smoking body and elongates the smoking body. In particular, the first base region of the hollow element faces the base region of the smoking body in an end-to-end relationship. The second base region of the hollow component is opposite to the first base region. Therefore, the hollow element preferably also has a cylindrical shape with the same cross-section as the smoking body. The hollow element is further configured to draw vapor from the heated smoking body. In another embodiment, a hollow element, such as a hollow tube section, is located downstream of the smoking body, with another element, such as a filter, being located between the smoking body and the hollow element.

The long smoking article preferably includes a tipping paper surrounding the smoking body and the hollow element. In other words, the tipping paper circumferentially surrounds the cross-section of the smoking body and the hollow element and extends across the smoking body and the hollow element in the longitudinal direction. The tipping paper is preferably attached to the outer surfaces of both the smoking body and the hollow element, and thus connects the smoking body and the hollow element. Preferably, the tipping paper is adhered to the smoking body and the hollow component. The outer surface. In another preferred embodiment, for example if there is another element between the hollow element and the smoking body, the smoking body and the hollow element are adhered to each other by other means, such as by the wrapping paper of the long smoking article .

Preferably, the hollow element of the elongated smoking article according to the present invention is one of a hollow pore filter element and a hollow tube portion. Among other things, hollow pore filter elements are constructed to reduce certain species from combustion gases emitted from heated smoking bodies, particularly heated combustible materials. The filter element may comprise a filter plug, for example from cellulose acetate, containing a central hollow pore extending along the entire length of the filter. At the same time and compared to a completely hollow tube section, such a hollow pore filter, when positioned adjacent to the smoking body, further provides a supporting base surface for the combustible material of the smoking body and a fitting around the elongated smoking article Paper and/or wrapping paper provide adequate mechanical support.

However, in another preferred embodiment the hollow element is a hollow tube section, such as a hollow cardboard tube. In such embodiments, the hollow holes extend substantially throughout the entire first substrate region and throughout the entire second substrate region. Such hollow tubes are constructed to allow cooling and/or mixing of vapor emitted by the heated smoking body. Specifically, in such embodiments, positioning the filter membrane upstream of (and adjacent to) the hollow tube portion allows the restricted vapor flow to expand into the hollow tube portion and thus improves mixing of the vapor components. The at least one filter aperture of the filter membrane thus improves the mixing of the vapor in the hollow element and therefore the uniformity of the vapor drawn in by the user. As a hollow element the hollow tube part can be positioned downstream of the smoking body, with a further filter element being arranged between the hollow tube part and the smoking body.

The hollow tube portion may further contain embedded flavoring materials for improving the taste quality of the steam. In a preferred embodiment, the hollow tube portion is positioned adjacent the smoking body and the supporting base surface of the combustible material of the smoking body is preferably formed by a filter membrane covering the first base area. Alternatively, the supporting base surface of the combustible material of the smoking body is formed by another filter element or filter membrane arranged between the smoking body and the downstream hollow tube part (hollow element).

In another preferred embodiment, the hollow element is a hollow pore filter element as described above, and the hollow tube portion is disposed adjacent and downstream of the hollow pore filter element as described above. . Alternatively, another hollow pore filter element is positioned adjacent to the smoking body, and the hollow element is a hollow tube portion positioned downstream of the other hollow pore filter element.

Preferably, the elongated smoking article of the present invention also includes a second filter element adjacent and downstream of the hollow element and configured as a mouthpiece for the user. The hollow element and the second filter element preferably have a cylindrical shape and have at least approximately the same diameter as the smoking body and/or the hollow pore filter element. The second filter element is preferably a second hollow pore filter element that does not significantly increase the draw resistance experienced by the user. The smoking body, the hollow element (ie the hollow pore filter element and/or the hollow tube part) and/or the second filter element are preferably circumferentially wrapped by and connected to a wrapping paper .

In another preferred embodiment, the filter membrane is disc-shaped, particularly preferably having the same diameter as the cylindrical smoking body and the hollow element. In other words, the base area of the filter membrane has a substantially circular shape. However, other shapes, such as elliptical shapes, are also possible for these base regions. Depending on the thickness of the filter membrane, the filter membrane can be considered to have a flat shape or a cylindrical shape. Such filter membranes are preferably attached to one or both of the smoking body and an adjacent element (eg, a hollow element).

Illustratively, a suitable adhesive may be applied to the base area of the adjacent element facing the smoking body, for example on the first base area of the hollow element. It is also preferred that a filter membrane is wedged between the smoking body and an adjacent element, for example between the smoking body and a hollow element. In such embodiments, the filter membrane may be provided without adhering/attaching to the smoking body and/or adjacent elements, such as by force closure and/or by circumferentially surrounding the elongated smoking member. The wrapping paper of the components of the smoking article is fixed in place.

Particularly preferably, the filter membrane contains a plurality of filter openings. Among them, the filter hole The ports are preferably constructed as a plurality of through holes in the film, as a plurality of openings in the mesh material, and/or as a plurality of openings or pores in a cloth shaped material. In other words, the filter apertures are preferably inserted into the material of the filter membrane, for example by perforations, or are formed from the material of the filter membrane itself, for example as gaps between spokes of the mesh material.

In the context of the present invention, the effective size of a filter orifice as introduced above preferably refers to the linear extension of the opening cross-sectional area available for steam to pass through the orifice opening. For round orifices, the effective size is the diameter of the filter orifice, and for square orifices, the effective size is the side length of the filter orifice.

The orifice opening is preferably adapted to filter particles emitted from the heated smoking body while allowing passage of vapor emitted from the heated smoking body. In addition, the orifice opening is significantly smaller than the hollow hole in the hollow element, usually having a size of several millimeters, such as 3.5 mm. In addition, the pore opening is significantly larger than the pores or channels of the entire cellulose acetate filter, especially if the hollow pore filter element is a hollow element.

The orifice opening therefore advantageously allows filtering of particles from the vapor emitted by the heated smoking body without significantly increasing draw resistance. Additionally, the orifice openings advantageously facilitate mixing of the vented steam. The size of the filter openings advantageously ensures that ash or tobacco particles cannot pass through. Therefore, it is possible to create a safe rod design while having hollow holes through all filters and tube segments that create an enhanced tobacco flavor and smoke experience.

In a preferred embodiment of the elongated smoking article of the invention, the filter membrane is constructed for dispersing the heat emitted by the heated smoking body and/or generated by the device for heating the smoking body. Preferably, the filter membrane is constructed for deflecting and/or absorbing heat emitted by the heated smoking body and/or generated by the device for heating the smoking body.

In other words, the filter membrane is preferably constructed to block, dissipate and/or disperse the heat generated by the device for heating the smoking body. All these effects ultimately lead to improved heat dispersion in long smoking articles. By means of the filter membrane, the user's mouth is advantageously protected from excessive heat. In addition, by dispersing Heat can improve the uniformity of heating of the smoking body. At the same time, any other elements of the elongated smoking article downstream of the filter membrane, such as hollow elements, are protected from excessive heat. In the case of cellulose acetate filter elements downstream of the filter membrane, blocking and/or absorbing heat advantageously protects these downstream elements from melting.

The filter membrane is preferably constructed to reflect thermal radiation and/or block heat transport by thermal conduction by including at least one layer of material with low thermal conductivity. Alternatively or additionally, the filter membrane is constructed to absorb heat by including at least one additional layer with high thermal conductivity, but such a layer is preferably combined with a downstream layer with low thermal conductivity. In other words, the layer of the filter film facing the smoking body is preferably constructed with heat reflective properties and high thermal conductivity for absorbing and/or dissipating heat, while the downstream layer of the filter film is preferably constructed with low thermal conductivity in order to block heat. convey. Therefore, the first layer of the filter membrane facing the smoking body has a higher thermal conductivity adjacent to the second layer downstream of the first layer.

In another preferred embodiment, at least a portion of the filter membrane facing the smoking body contains a heat deflecting material, ie a material structured to reflect thermal radiation. Preferably, the heat deflection material is aluminum commonly used in the tobacco industry. Advantageously, aluminum disperses unreflected heat. More preferably, at least one layer of the filter membrane has a low thermal conductivity material such as paper. Particularly preferably, the filter membrane is formed from a laminated sheet including an aluminum layer and a paper layer, wherein the aluminum layer is adhered to or coated on the paper layer. Such paper-aluminum laminates are commonly used in packaging of tobacco-related products. In this embodiment, the aluminum layer faces the smoking body for reflecting heat emitted from the smoking body. More preferably, the filter membrane includes a metal mesh, wherein such metal mesh can also be combined with a paper layer to form a metal-paper laminate. Among them, the metal mesh is preferably circumferentially surrounded by paper for fixation.

In a preferred embodiment of the elongated smoking article of the present invention, at least one orifice opening, preferably a plurality of orifice openings, are formed in the filter film by laser perforation. However, other forms of perforation such as needling or the like are also preferred for creating at least one orifice opening. However, as already mentioned above, the pore openings can also be formed from the material of the filter membrane itself, such as a mesh material, and the perforations are obsolete. Here, during the manufacture of the elongated smoking article, the size of one or more perforations/channels can be selected depending on the desired nicotine "hit" delivery. Particularly preferably, the filter membrane is entirely or partially made of Formed from aluminum foil, paper, mesh materials, activated carbon, extruded tobacco and/or cloth materials. Particularly preferably, the mesh material is a metal mesh, for example from copper or aluminum.

In a particularly preferred embodiment, the filter membrane of the present invention further includes at least a first part and a second part. At least one first portion extends along a lateral surface of the hollow pore filter element, eg along its entire length or part thereof, and is curved from the second portion of the filter membrane. The second portion of the filter membrane is bent from at least one first portion, in particular over the first base region of the hollow element, so that the second portion extends at least partially above the first base region of the hollow element. In other words, the second portion covers at least part of the first base area of the hollow element, and at least one first part is curved to cover part of the lateral surface of the hollow element. Additionally, the second portion of the filter membrane includes at least one filter aperture as described above, that is, at least one filter aperture aligned with the hollow pores in the first substrate region. This embodiment advantageously enables an improved fixing of the filter membrane to the hollow element, in particular to the lateral surface of the hollow pore filter element via at least the first part. Preferably, the filter membrane is formed from aluminum foil, paper, mesh material and/or cloth material or a mixture of these materials (such as an aluminum-paper laminate).

In a particularly preferred embodiment, at least a first part and a second part of the filter membrane are formed from a metal mesh. More preferably, such a filter membrane includes a plurality of first parts, such as two or more first parts, which are bent from a second part covering the first base area to a lateral surface for use in the first part. Provides form and/or form closure with lateral surfaces of the filter element. Preferably, the second portion is formed from a metal mesh and is configured for placement on the first substrate area, for example by containing a disk shape. Next, at least one first portion extends outwardly from the second region in the plane of the second region before bending onto the lateral surface of the hollow pore filter element. Preferably, in this embodiment, the at least one first portion may also be formed from paper material or cloth material and constructed to be glued to the lateral surface of the hollow pore filter element. It is also preferred that a positive seal is provided to the lateral surfaces of the smoking body.

Preferably, the second part has a surface adapted to cover the first base area of the hollow element. Hollow hole in rectangular or circular shape. According to a preferred embodiment, at least two first portions extend laterally from respective portions of the circumference of the second portion. In other words, the first part protrudes from the second part as flaps, wherein these flaps are separated from each other and can each be bent to some extent on the lateral surfaces of the hollow element. In such embodiments, each of the flaps may be glued to a lateral surface of the hollow element, or a plurality of flaps may generally provide a positive closure to the hollow element. In an alternative preferred embodiment, a first portion circumferentially surrounds the entire second portion. Illustratively, in the case of a circular second part, the first part is formed by a circular ring connected to the second part in a radially outward direction. This first part may also be glued to or provide a positive closure to the lateral surfaces of the hollow element.

The first part of the filter membrane is preferably glued to the lateral surface of the hollow element. Therefore, the filter membrane is properly fixed to the hollow element. However, the first part can also be attached to the hollow element by other means, such as stitching or the like. Preferably also, the first part is attached to the hollow element only by wrapping paper around the hollow element and the first part and/or by the second part being wedged between the smoking body and the hollow element.

More preferably, the filter membrane includes a third portion curved from the first portion and extending over the second base region. In other words, the third portion is preferably curved above the second base region, in particular above the hollow hole in the second base region. According to this embodiment, the third part also has at least one filter aperture aligned with the hollow hole in the second base region. The filter orifice in the third part is preferably constructed as described above. By providing this third part, the second filter membrane is disposed in the flow path of the vapor emitted by the smoking body, thereby increasing the filtration efficiency and/or increasing the heat of the membrane relative to particles emitted by the heated smoking body. Deflection efficiency.

Preferably the smoking body (its combustible material) can be heated to release at least one volatile compound which can form an aerosol. The aerosol-forming substrate is preferably located at the upstream end of the elongated smoking article. To generate an aerosol, the combustible material includes at least one volatile compound that is intended to be vaporized/aerosolized and that can provide recreational and/or medicinal benefits to the user when inhaled. Suitable chemical and/or physiological tools Active volatile compounds include the group consisting of: nicotine, cocaine, caffeine, opiates and opioids, norpseudoephedrine and cathinones, kavalactones, myristyl ethers, beta-carboline alkaloids, Salvianol A and any combination, functional equivalent or synthetic substitute of the foregoing.

The combustible material of the smoking body may include plant material. The plant material may comprise at least one plant material selected from a list including Amaranthus amaranth , Bearberry (Bear Grape), Thistle Poppy , Arnica , Wormwood , Yellow Tees, Vallisneria , Seaweed Cecropia mexicana, Cecropia mexicana (Guamura), night lilac , glaucoplasma (wild healing grass), gorse , damiana , duckweed , caltrop (California poppy), reticulata , horsetail, humulus (Japanese hop), hops (Hops), poisonous lettuce ( lettuce opium), hexagonal chrysanthemum , lion's ear flower , motherwort (Leonurus) , Motherwort (four beauties), cardinal flower , lobelia (Indian tobacco), large lobelia , Nepeta (catnip), Nicotiana tabacum (tobacco), European white water lily ( White Water Lily), Egyptian blue water lily (Blue water lily) ), opium poppy , pink passionflower (Passion flower), sage (Indian warrior), Greenland sage (elephant head), Mexican sage , purple sage (tobacco sage), Salvia spp. (sage), helmeted skullcap , North American skullcap , wild skullcap , skullcap (skullcap), goldenrod (scutellaria), white-backed goldenrod , African dreamroot (Silene capensis), clove (lilac), sweet Marigold (Mexican Tansy), Camphorathus camphoratus (Tarchonanthus camphoratus), Damiana (Damiana), Mullein (mullein), Zinnia (Zinnia) and any combination or function of the foregoing Equivalents and/or synthetic substitutes.

Preferably, the plant material is tobacco. Any type of tobacco may be used. This includes but is not limited to flue-cured tobacco, burley tobacco, Maryland tobacco, dark air-cured tobacco, Oriental tobacco, dark-fired tobacco, perique tobacco and yellow flower tobacco. This also includes the tobacco blends mentioned above. Any suitable part of the tobacco plant may be used. This includes leaves, stems, roots, bark, seeds and flowers. Tobacco may include one or more of the following: leaf tobacco, stem tobacco, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, cut tobacco, extruded tobacco, shredded tobacco, and/or reconstituted tobacco Tobacco (e.g. pulp reformulation or paper reformulation). The combustible material of the smoking body may comprise aggregated sheets of homogenized (eg, paper/pulp reconstituted) tobacco or aggregated filaments/strands formed from such sheets. In some embodiments, the sheet of combustible material used to form the smoking body has a grammage greater than or equal to 100 g/m ² , such as greater than or equal to 110 g/m ² , such as greater than or equal to 120 g/m ² . The tablets may have a grammage less than or equal to 300 g/m ² , such as less than or equal to 250 g/m ² or less than or equal to 200 g/m ² . The tablets may have a grammage between ¹²⁰ and ¹⁹⁰ g/m. The combustible material of the smoking body may comprise at least 50 wt% plant material, such as at least 60 wt% plant material, such as about 65 wt% plant material. The combustible material of the smoking body may comprise 80 wt% or less plant material, for example 75 wt% or 70 wt% or less plant material.

The combustible material of the smoking body may include one or more additives selected from humectants, flavoring agents, fillers, aqueous/non-aqueous solvents and binders. Moisturizers are provided as vapor generators - the resulting vapor helps carry volatile active compounds and increases visible vapor. Suitable humectants include polyols (eg, propylene glycol (PG), triethylene glycol, 1,2-butanediol, and vegetable glycerine (VG)) and their esters (eg, glyceryl monoacetate ester, glyceryl diacetate or glyceryl triacetate). The polyols may be present in the combustible material of the smoking body in an amount of between 1 wt% and 50 wt%. The humectant content of the combustible material of the smoking body may have a lower limit of at least 1 wt%, such as at least 2 wt%, such as at least 5 wt%, such as at least 10 wt%, such as at least 20 wt%, such as at least 30 wt%, or such as a minimum of 40 wt% of the plant material. . The humectant content of the combustible material of the smoking body may have an upper limit of at most 50 wt% of the plant material, such as at most 40 wt%, such as at most 30 wt% or such at most 20 wt%. Preferably, the humectant content is 1 to 40 wt% of the combustible material of the smoking body, such as 1 to 20 wt%. Suitable adhesives are known in the art and may be used to bind together the components of the combustible material forming the smoking body. Binders may include: starch and/or cellulose binders, such as methylcellulose, ethylcellulose, hydroxypropylcellulose, hydroxyethylcellulose, and methylcellulose; gums, such as xanthan gum, guar Gum, gum arabic and/or locust bean gum; organic acids and their salts, such as alginic acid/sodium alginate, agar and pectin.

Preferably, the binder content is 5wt% to 10wt% of the combustible material of the smoking body. For example, about 6wt% to 8wt%. Suitable fillers are known in the art and may be used to reinforce the combustible material of the smoking body. The filler may include fibrous (non-tobacco) fillers such as cellulosic fibers, lignocellulosic fibers (eg, wood fibers), jute fibers, and combinations thereof. Preferably, the filler content is 5wt% to 10wt% of the combustible material of the smoking body, for example about 6wt% to 9wt%. The combustible material of the smoking body may contain aqueous and/or non-aqueous solvents. In some embodiments, the combustible material of the smoking body has a moisture content of between 5 and 10 wt%, such as between 6 and 9 wt%, such as between 7 and 9 wt%. Flavorings are available in solid or liquid form. This may include menthol, licorice, chocolate, fruit flavors (including, for example, citrus, cherry, etc.), vanilla, spices (eg, ginger, cinnamon), and tobacco flavors. Flavoring agents may be uniformly dispersed throughout the combustible material of the smoking body, or may be provided in isolated locations and/or in varying concentrations throughout the combustible material.

The combustible material of the smoking body may be formed in a substantially cylindrical shape such that the article/consumable is similar to conventional cigarettes. The smoking body may have a diameter of between 5mm and 10mm, such as between 6mm and 9mm or between 6mm and 8mm, such as about 7mm. It may have an axial length of between 10 mm and 15 mm, for example between 11 mm and 14 mm, such as about 12 mm or 13 mm. The combustible material of the smoking body may be surrounded by a coating such as a paper coating. The cladding layer may cover the inner foil layer, or may comprise a paper/foil laminate (with the foil being innermost).

The filter elements referred to herein, in particular hollow pore filter elements, may each have a substantially cylindrical shape, with a diameter that substantially matches the diameter of the smoking body (whether with or without its associated cladding) ). The axial length of one or each filter element may be less than 20 mm, such as between 8 mm and 15 mm, such as between 9 mm and 13 mm, such as between 10 mm and 12 mm. The at least one hollow pore filter element may have a pore diameter of between 1 mm and 5 mm, for example between 2 mm and 4 mm or between 2 mm and 3 mm. The hole diameter is preferably larger than the diameter of the flow orifice(s).

The elongated smoking article may further comprise a further (solid) filter element. The other one (solid The filter element may include capsules, such as crushable capsules (crush balls) containing a liquid flavoring agent (eg, any of the flavoring agents listed above). The capsules may be crushed by the user during smoking of the elongated smoking article to release the flavoring agents. The capsule may be located in the axial center of the (solid) filter element.

The hollow tube element defines a space or cavity or chamber between the combustible material of the smoking body and the downstream end of the elongated smoking article. Hollow tube elements are used to allow cooling and mixing of the aerosol. The hollow tube element may be at least partially (eg completely) surrounded by a (paper) cladding layer. The hollow tube element may have an outer diameter of between 5 mm and 10 mm, such as between 6 mm and 9 mm or between 6 mm and 8 mm, such as about 7 mm. It may have an axial length of between 10 mm and 15 mm, such as between 12 mm and 14 mm or between 13 mm and 14 mm, such as about 14 mm.

In some embodiments, the elongated smoking article may further comprise an aerosol cooling element adapted to cool aerosols generated from combustible materials (by heat exchange) of the smoking body prior to inhalation by the user. Aerosol. The aerosol cooling element will be downstream of the combustible material in the smoking body. The aerosol cooling element may be at least partially (eg, completely) surrounded by a (paper) covering. The aerosol cooling element may be formed of a plastic material selected from the group consisting of: polylactic acid (PLA), polyvinyl chloride (PVC), polyethylene (polyethylene; PE), and polyethylene terephthalate Ester (polyethylene terephthalate; PET). Aerosol cooling elements may be formed from rolled/agglomerated sheets of material to form a structure with a high surface area and a plurality of longitudinal channels to maximize heat exchange and aerosol cooling.

Another aspect of the invention relates to a method for producing or manufacturing a hollow element, preferably a hollow pore filter element or a hollow tube part in an elongated smoking article according to the invention. The hollow elements thus produced can therefore be used in the manufacture of elongated smoking articles according to the invention. The method for manufacturing hollow components includes at least the following steps.

In a first step of the method, a hollow component is provided having a first base region, a second base region opposite the first base region, and a second base region extending from the first base region to the second base region. Hollow hole. Such hollow elements are known from the prior art and the hollow elements provided differ from these elements. In a further step of the method of the invention, a film sheet is provided having a width that exceeds the distance between the first substrate region and the second substrate region. In other words, the width of the membrane sheet exceeds the length of the hollow element.

In the method of the invention, the adhesive is then applied to a first portion of the film sheet, wherein the first portion has a width corresponding to the distance between the first substrate area and the second substrate area. In other words, the first part of the film piece is only a part of the film piece, and therefore, a part of the film piece is not covered by the adhesive. Depending on the position of the first part, a second part of the film sheet remains adhesive-free on one side of the first part, or a third part on both sides of the first part remains adhesive-free.

In a next step of the method of the invention, a segment is separated from the film sheet, wherein the segment has a length corresponding to the width of the film sheet, in other words the segment is separated from the film sheet in the width direction of the film sheet, for example cut. Therefore, a plurality of segments connected to each other in the length direction of the film sheet perpendicular to the width direction of the film sheet form a film sheet. Separation of the segments is preferably performed by blade cutting or similar means. Thus, the first part of the segment is covered with adhesive and the second part on one side of the first part is free of adhesive, and finally the third part is also free of adhesive.

In the method of the invention, the first part of the segment is then attached to the lateral surface of the hollow element via an adhesive. In other words, the segments adhere to the hollow element. This can be done by placing the segments onto the hollow element or by rolling the hollow element over the segments or the like. After the segment is attached to the hollow element, and finally after the adhesive has dried, the second part of the segment is bent over the first base area of the hollow element. In a preferred embodiment in which the first part is the central part of the film sheet in its width direction as described above, the other third part of the segment is bent over the second base area of the hollow element.

Preferably, the film sheet used in the method of the invention contains at least one orifice opening as described above, the at least one orifice opening being located in the second part and ultimately in the third part of the film sheet. Next, the first portion is bent over the first base region so that the aperture in the first portion is opened. The aperture is aligned with the hollow hole in the first base region, and finally, the second portion is curved over the second base region such that the aperture opening in the second portion is aligned with the hollow hole in the second base region. Alternatively, the method further comprises the step of perforating, preferably laser perforating, the second and/or third part of the film sheet, i.e. before dividing the segments, or comprising perforating the second and/or third parts of the segments. The third part is perforated, preferably by laser perforation, that is, after the segmentation.

Another aspect of the invention relates to a smoking system comprising an elongated smoking article according to the invention and a heating device for heating the elongated smoking article. The heating device therefore includes a body and a cavity configured for receiving the smoking body of the elongated smoking article. In other words, the smoking body of the smoking article can be inserted into the cavity of the device. According to the invention, the heating device is constructed for heating the smoking body and the filter membrane of an elongated smoking article inserted in the cavity. In other words, with the smoking system of the invention, the advantages of a filter membrane constructed to disperse the heat generated by the device for heating the smoking body are achieved. Specifically, the cooling rate of steam is reduced, evaporation of steam components at the filter membrane is avoided, and the formation of larger particles is improved.

The heating device is preferably a HNB device, ie a device adapted to heat rather than burn the combustible material of the smoking body. The body of the device is preferably constructed for housing the heating element, for example within a cavity of the heating device. The body is preferably constructed to house a power source for the heating element and control electronics for the heating element. The body may further include display means and control means for interacting with a user of the heating device.

In a preferred embodiment of the invention, the heating element comprises an elongated, for example, strip-shaped, tube-shaped or blade-shaped heating element. The heating element preferably projects into the body, in particular into a cavity in the smoking body for receiving the elongated smoking article as described above. The elongated heating element is preferably constructed for penetrating the smoking body of the elongated smoking article into which the smoking body is inserted to heat the combustible material of the smoking body. The elongate heating element is further configured to contact the filter membrane of the elongate smoking article inserted into the cavity of the smoking device together with the smoking body of the elongate smoking article. Therefore, by heating the long heating element, the filter membrane is also Heat is heated by conduction and, therefore, the filter membrane disperses the heat generated by the elongated heating element of the device.

According to this embodiment, the filter membrane is preferably positioned adjacent to the smoking body so that the elongated heating element does not have to extend from the smoking body. Ensures optimal heat transfer into the filter membrane when it comes into contact with a heating source. The temperature of the filter membrane will depend on the temperature of the heating element, the shape and style of the heating element, how well the heating element contacts the filter membrane, the material of the filter membrane, the conductivity of the heating element and the air flow through the filter membrane. Depending on these conditions, the filter membrane will reach a peak temperature between 100°C and 250°C. In other words, the second heating element is provided by a filter membrane that disperses the heat generated by the heating element.

In this embodiment, the filter membrane is preferably constructed from a thermally conductive material that is porous enough to allow steam to flow through and fine enough to prevent particulate matter from passing through the filter membrane. Particularly preferably, the filter membrane is made of woven metal mesh, such as stainless steel (grade 304 or 316), copper, aluminum, brass or Cantal (PeCrAI) mesh. The aforementioned metals allow suitable heat transfer while matching permeability criteria. Particularly preferably, the metal mesh has at least one filter pore with an effective size of less than 0.1 mm, more preferably with an effective size of filter pores between 10 μm and 50 μm. More preferably, the filter membrane is formed from a permeable ceramic disc, cloth or metal foil that has been perforated with a plurality of pores less than 100 μm. In such embodiments, the majority of pores are preferably smaller than 50 μm.

In another preferred embodiment, the filter membrane is provided as a thin metal component, for example from aluminum, which is photoetched, chemically etched or chemically ground. Such metal components are also available as thin components with precise pores or openings in the micron range and customized for optimal heat transfer and filtration. More preferably, the filter membrane is made of polymer material, such as PP, nylon, polyester, PET, PEEK, PTFE or PLA. PLA is particularly preferred as a biodegradable polymer. It is especially preferred that the polymer is blended with other additives such as glass fibers in order to increase or decrease certain mechanical properties or characteristics of the filter membrane, such as its thermal stability or electrical conductivity.

More preferably, according to this embodiment, the filter membrane is constructed as a flexible component, that is, for flexing in response to pushing the elongated heating element against the flexible element. In other words, the flexible film is preferably not rigid. More preferably, the filter membrane has a Young's modulus of less than 2 GPa, preferably less than 1 GPa and particularly preferably less than 0.5 GPa. The flexibility of the filter membrane ensures good thermal contact with the heating element while minimizing the risk of damaging the filter membrane, especially when long smoking articles can be used with heating elements of different lengths in devices from different manufacturers. Also in this embodiment, the filter membrane may be formed as a laminate having a plurality of layers as set forth above.

According to another preferred embodiment of the smoking system, the heating device comprises a heat source for contactless heating of the filter membrane or an electrical contact for supplying a heating current to the electrically conductive filter membrane. In other words, in this embodiment, the filter membrane is heated by transferring energy to the filter membrane, where the transferred ability has a form other than thermal energy. In other words, the device provides a non-contact heating arrangement for the filter membrane.

The heat source for contactless heating of the filter membrane is preferably implemented as an induction heating device, that is to say a device configured to emit electromagnetic waves that heat the filter membrane when received by the filter membrane. In such embodiments, the inductive heat source is preferably the same heat source used to generate vapor from the smoking body. However, the inductive heat source used to heat the filter membrane may also be different from the heat source used to heat the smoking body, where the latter may be inductive or not. In this case, the heat source for heating the filter film preferably acts from one or both sides of the filter film or annularly around the smoking body.

If the same induction heat source is used to heat the smoking body and the filter film, the filter film of the smoking body inserted into the cavity is preferably between the inductor coils used to heat the electromagnetic base placed in the smoking body. within the magnetic field. In the case of an inductive heat source, the filter membrane is preferably constructed from a ferromagnetic or subferromagnetic material containing magnetic elements such as iron, cobalt or nickel or alloys of these materials. Each of the aforementioned materials is an acceptable base material for use in induction heating applications.

However, the method used to heat the filter membrane may also be different from the method used to heat the smoking body. Illustratively, IR lamps, lasers, or another form of radiant heating may be used to heat the filter membrane. When using such a radiant heat source, the material used for the filter membrane preferably has an emissivity value of at least 90% or greater in order to absorb the radiation and not reflect the radiation. If metal is used for the filter membrane, a coating is preferably applied to the material for increasing the emissivity. This coating may also improve the resistance of the filter membrane to external influences, such as the acidity of the vapor emitted by the heated smoking body.

More preferably, the heating device includes at least one electrical contact for providing heating current to the metal filter membrane. This heating can also be regarded as contact heating, where the heating energy is transmitted to the filter membrane as electrical energy and converted into heat by the filter membrane itself. In such embodiments, the filter membrane may illustratively be formed from rolled glow filaments or a mesh formed from glow filaments. If only one electrical contact is provided, the electrical ground may be provided directly or indirectly by the housing of the heating device in contact with the filter membrane. The electrical contact can also be formed in the cavity in a semi-annular shape to contact the wires wrapped around the smoking body and contacting or forming the filter film.

In this embodiment, the filter membrane can be positioned substantially anywhere within the elongated smoking article. However, the assembly is preferably within 10 mm of the smoking body in order to allow for the beneficial effects as described above, such as those associated with a reduction in the cooling rate of the vapor. It is also preferred that the filter membrane is positioned more than 15 mm away from the steam outlet (ie, the mouthpiece) in order to avoid excessively high temperature of the steam reaching the user's mouth. Also in this embodiment, the filter membrane is preferably heated to a temperature of 50°C to 250°C, and the temperature of the filter membrane is ultimately slightly lower than the heating temperature of the smoking body.

Another aspect of the invention relates to a heating device for use in a smoking system as described above. The heating device therefore includes a body and a cavity configured for receiving the smoking body of the elongated smoking article. According to the invention, the heating device is configured for heating the smoking body and the filter membrane of an elongated smoking article inserted into the cavity. The heating device is preferably a HNB device, ie a device adapted to heat rather than burn the combustible material of the smoking body. The body of the device is preferably constructed for housing the heating element, for example within a cavity of the heating device. The body is preferably constructed to house a power source for the heating element and control electronics for the heating element. The body may further include display means and control means for interacting with a user of the heating device. The heating device preferably comprises an elongated heating element which The heating element projects into the cavity and is configured for penetrating the smoking body of an elongated smoking article inserted into the cavity and for contacting the filter membrane of the elongated smoking article. Also preferably, the heating device includes a heat source for non-contact heating of the filter membrane or an electrical contact for providing heating current to the metal filter membrane. The embodiments of the heating device correspond to those described for the smoking system.

Further aspects and preferred embodiments of the invention emerge from the accompanying claims, drawings and the following description of the drawings. If not stated otherwise, the different disclosed embodiments are advantageously combined with each other.

10: Cylindrical smoking body

11: Combustible materials

20: Hollow pore filter element

21: First base area

22: Second base area

25: First hollow hole

30: Hollow tube part

40: Second hollow pore filter element

45:Second hollow hole

46:Third filter element

47:Crushable capsules

50:Filter membrane

55: Filter orifice

51:Part One

52:Part 2

53:Part 3

60: Main body of heating device

61:Cavity of heating device

62: Long heating element

63:Heat source

100: Long smoking products

200:Heating device

300: Smoking system

Additional features of the present invention will become apparent to those of ordinary skill in the art by describing exemplary embodiments in detail with reference to the accompanying drawings, in which: Figure 1 illustrates an elongated suction device according to the prior art; A schematic perspective view of a smoking product; Figure 2 illustrates a schematic perspective view of a long smoking article according to a first embodiment; Figure 3 illustrates a schematic perspective view of a long smoking article according to a second embodiment; Figure 4 illustrates a schematic perspective view of a long smoking article according to a second embodiment. Figure 5 illustrates a schematic perspective partial view of an elongated smoking article according to a second embodiment; Figure 6 illustrates a schematic perspective view of a long smoking article according to the third embodiment; FIG. 7 schematically illustrates a schematic front view of a filter film according to an embodiment; FIG. 8 schematically illustrates a filter film according to another embodiment. Schematic front view; Figure 9 illustrates a side view of the elongated smoking article according to the fourth embodiment; Figure 10 illustrates a side view of the elongated smoking article according to the fifth embodiment; Figure 11 illustrates a side view of the elongated smoking article according to the fourth embodiment; A smoking system of a long smoking article and a prior art heating device including a heating element for heating the long smoking article; Figure 12 illustrates a smoking system including a long smoking article and a heating device according to one embodiment ;and Figure 13 illustrates a smoking system including an elongated smoking article and a heating device according to another embodiment.

Referring to Figure 1, a schematic perspective view of an elongated smoking article according to the prior art is illustrated. The elongated smoking article includes a cylindrical smoking body 10 filled with combustible material 11 . The cylindrical surface of the smoking body 10 is surrounded by wrapping paper. The covering paper 12 typically incorporates fibrous material, such as cellulosic material, for example lignocellulosic material. Exemplary cellulosic materials include flax fiber, hardwood pulp, softwood pulp, hemp fiber, stipa fiber, and sisal fiber, wherein mixtures of cellulosic materials may be used.

A base area of the smoking body 10 is open to expose the combustible material 11 . At this open base area of the smoking body 10, a heating element for heating the combustible material 11 can be inserted into the smoking body. A hollow pore filter element 20 is positioned at another base area. Filter element 20 may be formed at least in part from fabric, mesh, paper, film, and/or other suitable structures that provide the desired diffusivity. Its thickness and density can be determined during manufacturing or changed thereafter to provide the desired diffusivity. The hollow pore filter element contains hollow pores 25 . Preferably, the smoking body 10 and the hollow hole filter element 20 have a diameter of 7.2 mm, and the hollow hole 25 has a diameter of 3.5 mm.

A hollow tube portion 30 is positioned adjacent the hollow pore filter element 20 and is formed from a cardboard tube of the same diameter as the smoking body 10 and the hollow pore filter element 20. A second hollow pore filter element 40 is positioned adjacent the hollow tube portion 30, the second hollow pore filter element 40 having a hollow pore 45 having a diameter of 2 mm. The hollow tube portion 30 and the second hollow pore filter element 40 also have a diameter of 7.2 mm.

The smoking body 10, hollow pore filter element 20, hollow tube portion 30 and second hollow pore filter element 40 are axially aligned in an end-to-end relationship along the longitudinal relationship of the elongated smoking article. The base regions 21, 22 of the hollow pore filter element 20 are open to air and smoke passing therethrough. One of these base areas, that is, the first base area 21, contacts the smoking body 10, and the other base area opposite to the first base area The bottom area, that is, the second base area 22 , contacts the hollow tube portion 30 . The hollow pore filter element 20 includes a filter material, such as plasticized cellulose acetate or a biodegradable material, that is constructed to reduce the passage of smoke by a smoker through the second base region 22 of the hollow pore filter element 20 . The substance in the combustion gas smoked by the smoking body 10 is heated.

Preferably, the smoking body 10, the hollow pore filter element 20, the hollow tube portion 30 and the second hollow pore filter element 40 are fixed to each other via a wrapping paper (not shown) surrounding all the aforementioned components. The wrapping paper is wrapped around the components in the longitudinal direction and is attached to the outer surfaces of the components and/or to the wrapping paper itself by adhesive. Therefore, the wrapping paper uses a suitable adhesive, such as a water-based adhesive of the type traditionally used by cigarette manufacturers for wrapping paper applications during the manufacture of filter cigarettes, to provide a force seal between the aforementioned components via indirect bonding. The wrapping paper thus extends peripherally around the longitudinal extension of substantially the entire length of the elongated smoking article.

Figure 2 illustrates a schematic perspective view of the elongated smoking article 100 according to the first embodiment of the present invention. The elongated smoking article 100 of Figure 2 differs from the elongated smoking article of Figure 1 in that the disc-shaped filter membrane 50 is positioned between the smoking body 10 and the hollow pore filter element. The filter membrane is adhered to the first base area 21 of the hollow pore filter element 20 and/or is wedged between the smoking body 10 and the hollow pore filter by generating an intermediate force due to the covering paper (not shown in the figure). between device components 20. The filter membrane 50 contains a plurality of pore openings 55 aligned with the hollow pores 25 of the hollow pore filter element 20, as shown schematically in Figure 2. The function of the filter membrane 50 is described in detail with respect to FIG. 5 , and therefore redundant description is omitted with respect to FIG. 2 .

Figure 3 illustrates a schematic perspective view of an elongated smoking article 100 according to a second embodiment of the present invention. The elongated smoking article 100 of Figure 2 differs from the elongated smoking article of Figures 1 and 2 in that the first portion 51 of the filter membrane 50 is attached to the lateral surface of the hollow pore filter element 20. The second portion 52 of the filter membrane 50 is curved from the first portion 51 and over the first base region 21 of the hollow pore filter element 20 . A plurality of orifice openings (not shown in the figure) are arranged in the second part 52 and are aligned with the hollow hole 25, that is, overlapping. The filter membrane 50 advantageously attaches well to the hollow pore filter element 20 .

Figure 4 illustrates a schematic perspective view of a hollow pore filter element 20 and a schematic front view of the base regions 21, 22 of the hollow pore filter element 20 according to one embodiment. The first portion 51 of the filter membrane 50 of the hollow pore filter element 20 is attached to the hollow pore filter element 20 as already described with respect to FIG. 3 . The second portion 52 of the filter membrane 50 is curved over the first base region 21 of the hollow pore filter element 20 and includes a plurality of pore openings 55 that are connected to the hollow pores 25 in the first base region 21 Overlap, as shown in plan view on first base area 21. In addition, the third portion 53 is curved over the second base region 22 of the hollow pore filter element 20 and contains a mesh 56 having a plurality of openings that overlap the hollow pores 25 in the second base region 22, as shown in Two base areas 22 are shown in plan view.

Figure 5 illustrates a schematic perspective partial view of an elongated smoking article 100 according to a first embodiment and its working principle. As can be seen in Figure 5, particles 70 (such as ash) and vapor 80 are emitted from the smoking body 10, which is heated to a temperature below its combustion temperature. The particles 70 and vapor 80 are drawn from the user in a downstream direction of the elongated smoking article 100 towards the hollow filter element 20 of the elongated smoking article 100 . The distance between the smoking body 10 and the hollow pore filter element 20 is shown for illustration purposes only, the smoking body 10 and the hollow pore filter element 20 are in fact directly adjacent.

The hollow pore filter element 20 is constructed as already described with respect to FIGS. 3 and 4 , and includes a second portion 52 of the strip segment 50 that curves over the hollow pore 25 , the second portion 52 having a cross section aligned with the hollow pore 25 . A plurality of orifice openings 55. The strip segment 50 is formed from a paper-aluminum laminate, with the aluminum layer facing upward in the first part 51 and in the second part 52 in the direction of the smoking body 10 . Due to the second portion 52, the heat emitted by the smoking body 10 and/or the heating element (not shown) inserted therein is deflected back towards the smoking body 10 and thus remains away from the user's mouth. Additionally, the pore opening 55 having a size of 10 μm filters particles 70 from the flow and allows only vapor 80 to pass to the user's mouth.

The vapor 80 then passes primarily through the hollow pores 25 of the hollow pore filter element 20, as illustrated in Figure 5 by the central set of arrows marked by reference numeral 80. Therefore, the user experience is characterized by less/lower heat, particles and draw resistance.

Figure 6 illustrates a schematic perspective view of an elongated smoking article 100 according to a third embodiment. The long smoking article 100 is different from the smoking article 100 according to the first embodiment and the second embodiment in two aspects. First, in the third embodiment, the hollow element is a hollow tube portion 30 positioned adjacent to the smoking body 10 . In other words, the first hollow pore filter element 20 is omitted and the second hollow pore filter element 40 downstream of the hollow tube portion 30 remains as a mouthpiece for the user. Next, the filter membrane 50 is then formed in different ways in the first and second embodiments, particularly as shown in Figure 7A, as described below.

Figure 7 schematically illustrates a schematic front view of a filter membrane 50 according to an embodiment. The filter membrane 50 of Figure 7 is formed entirely of a metal mesh (eg, copper mesh or aluminum mesh), with the mesh openings forming pore openings as described above. Each of the filter membranes shown in Figure 7 includes a central circle constructed to overlap (i.e., cover the hollow pores 25, 35 in the hollow elements 20, 30). Shape second part 52. In addition, each of the filter membranes 50 of FIG. 7 includes at least one first portion 51 . Specifically, the filter membrane 50 of FIG. 7A includes four first portions 51 extending laterally from the second portion 52 . Each of the first portions 51 has a rectangular shape and is constructed to curve so as to cover the lateral surfaces of the hollow elements 20, 30. Due to the plasticity of the metal mesh, the first part 51 remains fixed in the bent position and provides a positive and/or force closure to the lateral surfaces of the hollow elements 20, 30. The filter membrane 50 of Figure 7B includes two first portions 51 constructed in the same manner as the first portion 51 of Figure 7A. The filter membrane 50 of Figure 7C includes a single first portion 51 formed as a circular ring circumferentially surrounding a central second portion 52. The single first portion 51 is also constructed to curve over the lateral surfaces of the hollow elements 20, 30, plastically deforming and providing a positive and/or force closure to the lateral surfaces.

Figure 8 schematically illustrates a schematic front view of a filter membrane 50 according to a further embodiment. In the filter membrane 50 of FIG. 8 , only the central second portion 52 is formed from a metal mesh material embedded circumferentially through a paper carrier 54 . The paper carrier 54 may be double-layered, and the edge areas of the second portion 52 of the metal mesh may be glued between the layers of the paper carrier 54 . The first part 51 extends from the paper support of the filter membrane and is structured to The lateral surfaces of 20 and 30 are bent above and glued to the lateral surfaces. Specifically, the filter membrane 50 of FIG. 8A includes four first portions 51 extending laterally from the second portion 52 . Each of the first portions 51 has a rectangular shape and is constructed to bend so as to be glued to the lateral surfaces of the hollow elements 20, 30. The filter membrane 50 of Figure 8B includes two first portions 51 constructed in the same manner as the first portion 51 of Figure 7A. The filter membrane 50 of Figure 8C includes a single first portion 51 formed as a circular ring circumferentially surrounding a central second portion 52. The single first portion 51 is also constructed to curve over the lateral surfaces of the hollow elements 20, 30, thereby being glued to the lateral surfaces.

Figure 9 illustrates a side view of an elongated smoking article 100 according to a fourth embodiment. Likewise, the elongated smoking article 100 includes a smoking body 10 at an upstream end of the elongated smoking article 100 . The smoking body 10 contains reformulated tobacco as combustible material 11 including nicotine as a volatile compound. The combustible material 11 comprised 65 wt% tobacco provided in the form of aggregated filaments produced from pulp/paper reconstituted tobacco sheets. 20 wt% of a humectant, such as propylene glycol (PG) or vegetable glycerine (VG), is administered to the tobacco, and the tobacco has a moisture content between 7 and 9 wt%. The combustible material 11 further includes cellulose pulp filler and guar gum binder. The smoking body 10 is formed in a substantially cylindrical shape such that the elongated smoking article 100 is similar to a conventional cigarette. It has a diameter of approximately 7mm and an axial length of approximately 12mm.

The smoking body 10 is surrounded by a paper coating, and the elongated smoking article 100 includes an upstream hollow pore filter element 20 and a downstream (end) second hollow pore filter element 40 . The two hollow pore filter elements 20, 40 are separated by a hollow tube portion 30. Both hollow pore filter elements 20, 40 are formed from cellulose acetate tows and covered with respective paper plug layers (not shown). Both hollow pore filter elements 20, 40 have a substantially cylindrical shape. The diameter of the upstream hollow filter 20 matches the diameter of the smoking body 10 . The diameter of the second hollow pore filter element 40 is slightly larger and matches the combined diameter of the smoking body 10 and cladding. The axial length of the upstream hollow pore filter element 20 is slightly shorter than that of the second hollow pore filter element 40. Compared to the 12 mm axial length of the second hollow pore filter element 40, the axial length of the upstream hollow pore filter element 20 The length is 10mm.

The cardboard hollow tube portion 30 is longer than each of the two hollow pore filter elements 20, 40 having an axial length of approximately 14 mm. Each hollow pore filter element 20, 40 contains hollow longitudinally extending pores. The diameter of the pores in the upstream filter 20 is slightly larger than the diameter of the pores in the end filter 40, with the diameter of the pores in the upstream filter 20 being 3 mm compared to the 2 mm diameter of the pores in the end filter element 40. The cardboard hollow tube portion 30 and the upstream hollow pore filter element 20 are surrounded by a cladding layer. The end hollow filter element 40 is joined to the upstream element by a surrounding paper tipping layer, thereby forming the elongated smoking article 100 . The tipping layer surrounds the end filter 40 and has an axial length of approximately 20 mm such that it partially overlaps the cardboard hollow tube portion 30 .

A filter membrane 50 in the form of a foil disk with a single filter orifice 55 of 1 mm diameter is disposed downstream of the upstream hollow filter element 20, that is, the filter membrane 50 is inserted between the smoking body 10 and the cardboard hollow tube portion 30 and between the hollow pore filter element 20 and the cardboard hollow tube portion 30 .

Figure 10 illustrates a side view of an elongated smoking article 100 according to a fifth embodiment. The elongated smoking article 100 is the same as the elongated smoking article of Figure 9 except that the end filter element is a solid third filter The container element 46 contains a crushable capsule 47 (crushing ball) with a shell wall containing liquid menthol or cherry or vanilla flavoring. Capsule 47 is spherical and has a diameter of 3.5 mm. It is located in the axial center of the third filter element 46 .

Figure 11 illustrates a smoking system 300 comprising an elongated smoking article 100 according to a fourth embodiment and a heating device 200 comprising a heating element for heating the elongated smoking article 100 according to the prior art. The elongated smoking article 100 is inserted into a heating device 200 including a strip heating element (not shown). The heating element protrudes into the cavity 61 within the body 60 of the heating device 200 . 5. The elongated smoking article 100 is inserted into the cavity 61 of the main body 60 of the heating device 200, so that the heating strip penetrates the smoking main body 10. The addition of the reconstituted tobacco 11 in the smoking body 10 is achieved by, for example, using a rechargeable battery (not shown) to power the heating element. hot.

When the tobacco is heated, the moisture and nicotine and humectants from within the tobacco are released in the form of vapor and are entrained in the airflow created by the user inhaling at the end hollow filter element 40. After the steam passes through the upstream hollow pore filter element 20, the nicotine, moisture and humectant are forced to be in the same position as it passes through the filter apertures 55 in the filter membrane 50, thus achieving good mixing. The vapor flow path then increases the cross-sectional area within the cardboard hollow tube portion 30, which further enables efficient mixing of the vapor components. As the vapor cools within the hollow tube 30, it condenses to form an aerosol containing volatile compounds.

Figure 12 illustrates a smoking system 300 including an elongated smoking article 100 and a heating device 200, according to one embodiment. The heating device 200 includes a main body 60 having a cavity 61 , which is configured to receive the elongated smoking article 100 , especially the smoking main body 10 of the elongated smoking article 100 . An elongated heating element 62 extends into cavity 60 . The elongated smoking article 100 shown in Figure 12 includes a smoking body 10 separated from an adjacent hollow pore filter element 20 by a filter membrane 50. The hollow tube portion 30 is adjacent and downstream of the hollow pore filter element 20 . When the smoking body 10 of the elongated smoking article 100 is inserted into the cavity 61 , the elongated heating element 62 protrudes into the smoking body 10 for heating the combustible material 11 of the smoking body 10 .

As illustrated in Figure 12, the length of the elongated heating element 62 is adapted to the length of the smoking body 10 in the longitudinal direction of the elongated smoking article 100. When the length of the elongated heating element 62 is the same as or slightly larger than the length of the smoking body 10 , the elongated heating element 62 contacts the filter film 50 . Therefore, when the elongated heating element 62 is activated to heat the smoking body 10, the elongated heating element 62 also heats the filter membrane 50. The filter membrane 50 then disperses the heat generated by the heating device 200 to achieve beneficial effects, such as a reduction in the cooling rate of the steam, and thus the formation of larger particles in the steam, and reduced precipitation of steam particles at the filter membrane 50 .

Figure 13 illustrates a smoking system 300 including an elongated smoking article 100 and a heating device 200 according to another embodiment. The heating device 200 also includes a main body 60 having a cavity 61 , which is configured to receive the elongated smoking article 100 , especially the smoking main body 10 of the elongated smoking article 100 . Long type plus Thermal element 62 extends into cavity 60 . The elongated smoking article 100 shown in Figure 13 includes a smoking body 10 having an adjacent hollow pore filter element 20. The hollow pore filter element 20 is separated from the adjacent and downstream hollow tube portion 30 by a filter membrane 50 . When the smoking body 10 of the elongated smoking article 100 is inserted into the cavity 61 , the elongated heating element 62 protrudes into the smoking body 10 for heating the combustible material 11 of the smoking body 10 . However, in this embodiment, the heating element 62 does not directly contact the filter membrane 50 .

As illustrated in FIG. 13 , the heating device 200 of this embodiment further includes an induction heat source 63 . These inductive heat sources 63 are connected to a power source of the heating device 200, such as a battery, for drawing power from the power source and generating an electromagnetic field from the drawn power. The electromagnetic field emitted by the heat source 63 causes the heat source 63 to induce a current in the filter film 50 , and this current is sufficient to heat the filter film 50 .

10: Cylindrical smoking body

20: Hollow pore filter element

21: First base area

22: Second base area

25: First hollow hole

30: Hollow tube part

40: Second hollow pore filter element

45:Second hollow hole

50:Filter membrane

55: Filter orifice

100: Long smoking products

Claims (12)

A long smoking article (100) comprising: a cylindrical smoking body (10) having a combustible material; a hollow element (20, 30) downstream of the cylindrical smoking body (10) , and includes a first base area (21, 31) facing the smoking body (10) and a second base area (22, 32) opposite to the first base area (21, 32) and a second base area (22, 32) from the first base area (21, 32). A base area (21, 31) extends to a hollow hole (25, 35) of the second base area (22, 32); and a filter film (50), which is arranged between the smoking body (10) and the Between the hollow elements (20, 30), the filter membrane (50) includes at least one filter orifice (55) aligned with the hollow pores (25, 35). The at least one filter orifice (55) can Through the vapor emitted from the heated smoking body (10) and having an effective size between 0.5 μm and 1.5 mm, the vapor flows through the hollow hole (25). The elongated smoking article (100) of claim 1, wherein the filter film (50) is further configured to disperse emissions from the heated smoking body (10) and/or from the heated smoking body (10). heat generated by a device (200) of the body (10) in which the filter membrane (50) is configured for mixing components of the vapor emitted by the heated smoking body (10), and/or in which the filter membrane (50) 50) Constructed for filtering particles emitted by the heated smoking body (10). The long smoking article (100) as claimed in claim 1 or 2, wherein the hollow element (20, 30) is one of a hollow filter element (20) and a hollow tube part (30) , the hollow pore filter element (20) is configured for filtering material from the vapor emitted by the heated smoking body (10), and the hollow tube portion (30) is configured for mixing the vapor emitted by the heated smoking body (10). The heated smoking body (10) emits the steam. The long smoking article (100) as claimed in claim 1 or 2, wherein the filter film (50) is disc-shaped, and/or is wedged between the smoking body (10) and the hollow element (20) , 30), and/or wherein the filter membrane (50) is formed of aluminum foil, paper, mesh material and/or cloth material. The elongated smoking article (100) as claimed in claim 1 or 2, wherein the filter film (50) includes at least one first portion (51) along the hollow elements (20, 30) ) extends from a lateral surface and is curved from a second portion (52) extending above the first base region (21, 31) and containing the at least one filter aperture (55). The elongated smoking article (100) of claim 5, wherein the at least one first portion (51) is glued to the lateral surface of the hollow element (20, 30) and/or is formed of paper, and/ Or wherein the second part (52) is formed of metal mesh. The long smoking article (100) as claimed in claim 5, wherein the filter film (50) is formed of a metal mesh and is connected to the smoking body (10) or the smoking body by the at least one first part (51). A positive seal and/or a force seal between the hollow elements (20, 30) is attached to the smoking body (10) or to the hollow element (20, 30). A method for manufacturing a hollow element of an elongated smoking article (100) as claimed in any one of claims 1 to 7, comprising the following steps: providing a hollow element (20, 30) having A first base region (21, 31), a second base region (22, 32) opposite to the first base region (21, 32), and extending from the first base region (21, 31) to the A hollow hole (25, 35) in the second base region (22, 32); providing a thin film sheet with a film extending beyond the gap between the first base region (21, 31) and the second base region (22, 32) a width of a distance; applying an adhesive to a first portion (51) of the film sheet, the first portion having a surface corresponding to the first base area (21, 31) and the second base area (22, 32 ); separating a segment from the film piece, the segment having a length corresponding to the width of the film piece; attaching the first part (51) of the segment via the adhesive to a lateral surface of the hollow element (20, 30); and having a second portion (52) of the segment in the first base region (21, 30) of the hollow element (20, 30) 31) Curved above. A smoking system (300), which includes a long smoking article (100) as described in any one of claims 1 to 7 and a heating device (200), the heating device (200) including a main body ( 60) and a cavity (61) configured to receive the smoking body (10) of the elongated smoking article (100), and the heating device (200) is configured to heat an insert inserted into the cavity. The smoking body (10) and the filter film (50) of the long smoking article (100) in the cavity (61). The smoking system (300) of claim 9, wherein the heating device (200) includes an elongated heating element (62) protruding into the cavity (61) and passing through The filter membrane (50) is configured to penetrate the smoking body (10) and contact the elongated smoking article (100) inserted into the cavity (61). The smoking system (300) of claim 9, wherein the heating devices (200) include a heat source (63) for non-contact heating of the filter film (50) or for providing a heating current. to an electrical contact of the conductive filter membrane (50). A heating device (200) for use in a smoking system (300) according to claim 9 or 10.