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WO2020083657A1 - Article de génération d'un aérosol en forme de tige, élément de refroidissement d'un article de génération d'un aérosol ainsi qu'utilisation de ceux-ci - Google Patents

Article de génération d'un aérosol en forme de tige, élément de refroidissement d'un article de génération d'un aérosol ainsi qu'utilisation de ceux-ci Download PDF

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Publication number
WO2020083657A1
WO2020083657A1 PCT/EP2019/077527 EP2019077527W WO2020083657A1 WO 2020083657 A1 WO2020083657 A1 WO 2020083657A1 EP 2019077527 W EP2019077527 W EP 2019077527W WO 2020083657 A1 WO2020083657 A1 WO 2020083657A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling element
cooling
hnb
article
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2019/077527
Other languages
German (de)
English (en)
Inventor
Jan Blewonska
Peter Golz
Nadine Leichsenring
Michael Pyra
Frank Weimann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Publication of WO2020083657A1 publication Critical patent/WO2020083657A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters

Definitions

  • the invention relates to a rod-shaped HNB article comprising an aerosol-forming substrate and a cooling element arranged downstream of the substrate.
  • the invention further relates to a cooling element of an HNB
  • HNB article Heat-Not-Burn article
  • tobacco processing industry which is heated when consumed but not burned.
  • Heat for example from an electrically operated heat source, is generated on a physically separate aerosol-forming substrate vapor. This steam is intended for consumption and contains aroma and ingredients.
  • a tobacco-containing substance is usually used as the aerosol-forming substrate, which is different from conventional substances
  • rod-shaped HNB articles comprise, in addition to a section in which the aerosol-forming substrate is present, a cooling element downstream of this section. The aerosol produced is cooled to a desired consumption temperature in the cooling element.
  • HNB articles with a cooling element are known in various designs.
  • An exemplary embodiment of a rod-shaped HNB article is known from EP 2 760 303 B1.
  • this HNB article comprises a section in which an aerosol-forming substrate is present. Downstream, that is, in the direction of the mouthpiece, a support element is first connected before a cooling element follows further downstream.
  • the cooling element is made up of a gathered fabric. This fabric is constructed, for example, from a biodegradable polymer material. For example, polylactide (PLA) is used.
  • EP 2 760 303 B1 proposes a cooling element for this purpose, which is arranged immediately downstream of the support element and bears against it.
  • the total surface area of the cooling element is between 300 mm 2 per millimeter length and approximately 1000 mm 2 per millimeter length.
  • the cooling element has a porosity between 50% and 90% in the longitudinal direction.
  • the porosity of the cooling element in EP 2 760 303 B1 is the ratio of the cross-sectional area of the gathered material from which the cooling element is constructed, viewed in a cross-section through the cooling element, and the total internal cross-sectional area. kidney.
  • the cooling element comprises a plurality of channels which extend in the longitudinal direction and are formed by the gathered fabric.
  • the channels can be formed from a single sheet or from several gathered sheets.
  • EP 2 760 303 B1 proposes the use of a material for the cooling element which shows an endothermic phase change.
  • a large amount of heat can be absorbed by a material of the cooling element, for example during a melting process or during a glass transition. If the cooling of the aerosol flow is so strong that water condenses in the cooling element, the air flow passing the cooling element is generally dried. This can also have the effect that volatile substances from the aerosol stream are absorbed in the cooling element.
  • EP 2 760 303 B1 also proposes to produce the cooling element from a bundle of tubes extending in the longitudinal direction.
  • the cooling element is produced by extrusion, casting, lamination, injection or from a shredded material.
  • a rod-shaped HNB article comprising an aerosol-forming substrate and a cooling element arranged downstream of the substrate, the rod-shaped HNB article being developed in that the cooling element comprises a cooling substrate and the cooling element has a porosity between 51% and 99%, where as Porosity is a quotient from the free cross-sectional area not taken up by the cooling substrate to the total cross-sectional area.
  • a porosity of the cooling segment in the specified range has proven to be an optimal compromise between efficient cooling performance on the one hand and low tensile resistance on the other. It is advantageously possible to set the tensile resistance of the HNB article to a value which is between 30 mm and 150 mm water column. According to one embodiment, the HNB article has a tensile resistance between 30 mm and 150 mm water column, in particular between 50 mm and 80 mm water column.
  • the HNB article is further developed in that the aerosol-forming substrate and the cooling element are surrounded by a common outer shell, the
  • Total cross-sectional area is a cross-sectional area surrounded by an inner wall of the common outer shell.
  • the cooling substrate is arranged in the cooling element encompassed by the rod-shaped HNB article in such a way that channels are formed which extend in the longitudinal axial direction of the HNB article.
  • the channels extend in particular over the entire length of the cooling element. This applies in particular to all channels.
  • the channels preferably run at least approximately parallel to one another and furthermore in particular at least approximately parallel to a longitudinal axial direction of the HNB article or the cooling element.
  • the aerosol-forming substrate is arranged in an aerosol-forming element.
  • a gap is present between the aerosol-forming substrate, in particular between the aerosol-forming element, and the cooling element. That gap extends along the full scope of the HNB article. Its width, which is preferably at least approximately the same everywhere, is measured in the longitudinal axial direction of the HNB article, for example between 100 pm and one millimeter.
  • the gap avoids direct contact between the aerosol-forming substrate heated during use of the HNB article and the cooling element. Thermal conduction between the aerosol-forming substrate and the cooling element can thus be avoided.
  • the cooling element does not heat up unnecessarily due to the aerosol-forming substrate that is hot when the HNB article is used.
  • the HNB article is further developed in that the cooling substrate is a polymer which has an endothermic phase transition, that is to say a phase transition temperature, in a temperature range between 40 ° C. and 80 ° C., where the polymer especially polylactide (PLA).
  • the cooling substrate is a polymer which has an endothermic phase transition, that is to say a phase transition temperature, in a temperature range between 40 ° C. and 80 ° C., where the polymer especially polylactide (PLA).
  • the phase transition temperature lies in an interval between 50 ° C. and 70 ° C., furthermore in particular in a temperature range between 55 ° C. and 65 ° C. and furthermore in particular is at least approximately 60 ° C.
  • the cooling substrate absorbs a large amount of heat due to the phase transition taking place at this temperature without heating further.
  • the cooling substrate is thus able to efficiently cool the air flow or aerosol flow flowing through the cooling element.
  • PLA has proven to be a suitable material which has a glass transition temperature that is between 45 ° C and 65 ° C.
  • the HNB article is further developed in particular in that the cooling element comprises a plurality of strips of cooling substrate, which are oriented in a longitudinal direction of the HNB article.
  • a rod-shaped HNB article is developed in accordance with the preamble of patent claim 1 in that the cooling substrate comprises a plurality of strips which are arranged in a longitudinal direction of the HNB Article-oriented.
  • the cooling element comprises between 50 and 1500, preferably between 100 and 1000 or particularly preferably between 200 and 500 strips.
  • the cooling element comprises exactly 50, 100, 200,
  • strips of PLA film which serves as a cooling substrate, are provided.
  • the use of strips of cooling substrate in a cooling element of a rod-shaped HNB article has several advantages. In comparison to a gathered fabric, a larger active surface can be provided with the same material. For this reason, the cooling element, which comprises a plurality of strips, is more efficient. In particular, it is provided that all strips extend along the entire length of the cooling element. According to a further embodiment, the strips extend at least approximately parallel to a longitudinal direction of the cooling element.
  • the strips are strips cut into any length which do not necessarily extend over the full length of the cooling element.
  • the strips are also oriented at least approximately parallel to the longitudinal direction of the cooling element.
  • the active surface ie the surface available for heat absorption
  • the active surface is determined by the two large flat sides of the surface.
  • the two side edges of the fabric are negligibly small compared to the area of the large flat sides and are insignificant in terms of the heat absorption and cooling effect of the cooling element.
  • the end faces should be disregarded stay.
  • each individual strip has a right and a left side surface, the proportion of which in the total surface area should not be neglected.
  • a film of a certain width is cut into individual strips, it offers the greater and more efficient cooling effect compared to processing the identical film into a gathered fabric with the same material.
  • the production of a cooling element using strips also allows the customized setting and adjustment of individual parameters and properties of the cooling element. For example, a variation of the number of strips, the strip width and the material thickness, which corresponds to a thickness of the strips (distance between the two large flat sides) and / or a length of the strips, can provide an optimal compromise between cooling capacity and pulling resistance. the status can be found.
  • a width of the strips is greater than or equal to 0.5 mm and less than or equal to 4 mm and / or a material thickness of the strips is greater than or equal to 25 pm and less than or equal to 100 pm. According to further embodiments, it is provided that the strip width is greater than or equal to 0.5 mm and less than or equal to 2 mm. According to a further embodiment, the strip width is greater than or equal to 1 mm and less than or equal to 2 mm. The material thickness / thickness of the strips is also preferably at least approximately 50 pm.
  • the strips are made from a film, for example a PLA film, the grammage of which is between 10 mm 2 per milligram and 100 mm 2 per milligram.
  • the grammage is preferably in a range between 10 mm 2 per milligram and 25 mm 2 per milligram.
  • the cooling effect of the cooling element is the cooling effect of the cooling element.
  • An undesirably strong cooling can cause active substances to condense out of the aerosol. This can lead to a loss of active substances and ingredients in the aerosol, which is undesirable.
  • the strips are produced from a material with a smooth surface. A rough surface, like strong cooling, can lead to the absorption of active ingredients and ingredients. This may be desirable in some cases, which is why, according to another embodiment, the strips are made of a material with a rough surface. In general, however, strips with a smooth surface are preferred.
  • the strips encompassed by the cooling element all have the same width.
  • the deviations in the strip width are less than 10%, furthermore in particular less than 5% and furthermore in particular less than 1%. In no case is there a statistical or random distribution of the stripe width.
  • the HNB article is further developed in particular in that the cooling element comprises a multiplicity of fibers made of cooling substrate, which are oriented in a longitudinal direction of the HNB article.
  • an HNB article further developed according to the preamble of claim 1 in that the cooling element comprises a plurality of fibers which are oriented in a longitudinal direction of the HNB article.
  • the cooling element comprises a plurality of fibers which are oriented in a longitudinal direction of the HNB article.
  • optimal cooling can be set, which is neither too strong nor too weak, while at the same time keeping the drag resistance in the desired range.
  • the thickness of the fibers used can be varied, for example. In particular, it is provided that all the fibers used to produce the cooling element have the same thickness.
  • Another parameter with which the properties of the cooling element can be adjusted is a variation in the number of fibers used to produce the cooling element. For example, between 500 and 8000, between 500 and 4000 or between 1000 and 3000 fibers or filaments are used to produce the cooling element. Even when fibers are used, it is advantageously possible to adjust the mechanical properties, for example the bending stiffness, of the rod-shaped article in the area of the cooling element by varying the parameters mentioned above. In order to optimally adjust the properties of the cooling element, the shape of the cross section of the fibers used can also be varied.
  • fibers with an X-shaped, L-shaped or Y-shaped, circular, elliptical, I-shaped (ie flat fibers) and / or double-T-shaped cross section are provided.
  • Fibers with a circular, oval or even with a polygonal cross-section can also be used, which can in particular be designed as hollow fibers.
  • fibers with a triangular, square or rectangular cross section can be used.
  • all the fibers have the same cross-sectional shape.
  • the fibers are aligned at least approximately parallel to one another.
  • the fibers can be arranged along straight lines in the cooling element or can also be twisted together. All of these parameters allow the desired properties of the cooling element to be adapted, which is why the use of fibers for producing the cooling element is particularly advantageous.
  • the fibers have a diameter that is greater than or equal to 40 ⁇ m and less than or equal to
  • the diameter of the fibers is between 40 pm and 500 pm, between 40 pm and 350 pm or between 100 pm and 200 pm.
  • the diameter of the fibers is between 100 pm and 150 pm.
  • the above Values for the diameter on an equivalent diameter of the fibers For fibers that do not have a circular cross-section, the above Values for the diameter on an equivalent diameter of the fibers.
  • the equivalent diameter for example, the circumferential equivalent, the area equivalent or the diameter of the smallest circular overlap can be used.
  • Fibers that have a smooth surface, that is, in particular, are not rough, are preferably used. In this way, absorption of ingredients, active ingredients and flavorings on or on the surface of the fibers can be avoided. However, it may also be of interest to use rough fibers in order to achieve absorption of the ingredients, active ingredients and flavorings to a desired extent.
  • the HNB article is further developed in particular in that the cooling element extends in the longitudinal direction of the HNB article
  • the cooling element is a tube extending in the longitudinal direction of the HNB article, on the inside of which the cooling substrate is present.
  • the tube is coated with the cooling substrate, for example.
  • the cooling substrate is placed in the tube.
  • a PLA film can be inserted into a cardboard tube.
  • aluminum for example, can be used as an alternative to the previously mentioned polymer.
  • the inside of the tube is coated with aluminum, or an aluminum foil is inserted into the tube.
  • the inside of the cooling substrate is preferably smooth, so that it does not absorb any active ingredients, ingredients or aromas. In order to achieve absorption to a desired extent, the cooling substrate can also be rough. Over a
  • the porosity of the cooling element can be adjusted. The greater the wall thickness of the tube, the greater its share of the total cross-sectional area. The value of the porosity decreases accordingly.
  • a cooling element which comprises a tube, is advantageous since it provides thermal insulation to the outside of the rod-shaped HNB article.
  • a rod-shaped HNB article will not be uncomfortably hot for a user even during or after use on the outside.
  • the tube and / or the cooling substrate comprise paper and / or cardboard.
  • the tube or the cooling substrate or both elements are made of paper or cardboard or a mixture of paper and cardboard. Similar to before with regard to the possible configuration of the cooling substrate in the form of an aluminum foil, the cooling substrate according to the embodiment mentioned can be paper and / or cardboard, which is inserted into the tube. For the design of the surface of this
  • the cooling substrate made of paper and / or cardboard. This can in particular be smooth or rough to the desired extent. According to an advantageous development, it is further provided that the
  • Cooling element is designed as a double-walled tube made of paper and / or paper.
  • the cooling substrate is an inner tube of the double-walled tube.
  • the tube extending in the longitudinal direction of the HNB article is an outer tube of the double-walled tube.
  • the double-walled tube has at least one opening, which extends from an outer lateral surface through the double-walled tube to an inner lateral surface of the tube. This breakthrough opens into an interior of the double-walled tube. As far as on an outside of the tube, so adjacent to an outer
  • an outer envelope for example a wrapping paper
  • an opening which is also particularly aligned with the opening in the double-walled tube.
  • the double-walled tube, and in particular also the outer shell are perforated along at least one circumference, that is to say are preferably provided with openings or openings at regular intervals along a circular circumferential line.
  • the cooling effect of the inner tube which acts as a cooling substrate, is advantageously supplemented by the cooling effect of the at least one opening.
  • the breakthrough's cooling effect is that this breakthrough draws ambient air into the interior of the tube and this cool ambient air mixes with the active ingredient and / or aroma-laden air stream present in the interior.
  • a structure extending in the longitudinal axial direction of the HNB article or the cooling element is present in the interior of the tube.
  • This can, for example, be undulating in the circumferential direction and extend along the inner wall of the tube.
  • channels form between this corrugated structure and the inner wall of the tube.
  • the surface of the structure can also be provided with a cooling substrate, for example it is coated with a suitable polymer, for example with PLA.
  • the cooling capacity of the cooling element can be increased by such a structure.
  • the structure can change or set the tensile resistance of the cooling element.
  • a rod-shaped HNB article comprising an aerosol-forming substrate and a cooling element arranged downstream of the substrate is developed in such a way that the cooling element comprises different types of cooling substrates.
  • the cooling element comprises, for example, a multiplicity of strips and / or a multiplicity of fibers.
  • This combination option also applies to the above-mentioned further development options for the cooling element comprising strips and / or fibers.
  • the cooling element can comprise a tube extending in a longitudinal direction of the HNB article.
  • a cooling substrate and, for example, a multiplicity of strips and / or a multiplicity of fibers can be arranged in an interior of this tube. It also applies here that the mentioned further development possibilities of the cooling substrate comprising strips or fibers can also be combined with a tube to form a corresponding cooling element.
  • Such an HNB article is also suitable in itself, the inventive would be solved.
  • a cooling element is provided, the cooling substrate of which comprises both a large number of strips and a large number of fibers.
  • the cooling substrate is therefore a mixture of strips and fibers.
  • the cooling element is a tube extending in the longitudinal direction of the HNB article, strips and / or fibers being arranged in an interior space surrounded by the tube.
  • the aerosol-forming substrate is made from a tobacco material.
  • the aerosol-forming substrate can further comprise vapor-forming ingredients, such as glycerin and / or propylene glycol.
  • the HNB article also includes, for example, a spacer element which is arranged between the aerosol-forming substrate and the cooling element.
  • the rod-shaped HNB article comprises a filter which is arranged downstream of the cooling element. It is furthermore particularly provided that the aerosol-forming substrate is arranged at the head end of the rod-shaped HNB article and the filter on the opposite mouthpiece of the HNB article.
  • the object is further achieved by a cooling element of an HNB article according to one or more of the aforementioned embodiments.
  • the cooling element of the HNB article is developed in that it comprises at least two differently configured segments.
  • the first and the second segment are designed such that the first or the second segment: comprises a plurality of strips of cooling substrate which are oriented in a longitudinal direction of the HNB article, comprises a plurality of fibers of cooling substrate, which are oriented in a longitudinal direction of the HNB article or a tube which extends in the longitudinal direction of the HNB article, on the inside of which the cooling substrate is present.
  • the combination options for the configuration mentioned with regard to the cooling element also apply.
  • the task is also solved by using such a cooling element in an HNB article.
  • the cooling element is designed in the manner of a hollow filter, a core of the hollow filter comprising a plurality of strips of cooling substrate which are oriented in a longitudinal direction of the HNB article, and / or the core one Contains a plurality of fibers from the cooling substrate, which are oriented in a longitudinal direction of the HNB article.
  • the stated values for the porosity relate only to the core.
  • the cooling element comprises a core made of any material, in particular a filter material, the cooling element comprising a plurality of strips and / or fibers outside the core
  • Cooling substrate includes.
  • the stated values for the porosity relate only to the cross-sectional area of the Cooling segment without the cross-sectional area of the core.
  • Embodiments according to the invention can fulfill individual features or a combination of several features.
  • FIG. 1 shows a schematic and simplified view of a rod-shaped HNB article, shown in a longitudinal section
  • FIG. 5 shows a schematic and simplified perspective view of a half-opened cooling element which comprises a multiplicity of twisted fibers from the cooling substrate
  • FIG. 1 shows a schematic and simplified view of a rod-shaped HNB article 2, which comprises an aerosol-forming substrate 4, which is not shown in detail in the drawing, and a cooling element 6 arranged downstream of the aerosol-forming substrate 4.
  • the aerosol-forming substrate 4 is made, for example, of a tobacco material.
  • a filter element 8 is provided further downstream of the cooling element 6.
  • the filter element 8 can be designed, for example, in the manner known from conventional smoking products. For example, it is a triacetin filter.
  • the aerosol-forming substrate 4, the cooling element 6 and the filter element 8 are surrounded by a common outer shell 10.
  • the outer sleeve 10 is, for example, a wrapping paper.
  • the cooling element 6 shown comprises a multiplicity of strips 12, only a few of which are provided with reference numerals for reasons of clarity.
  • the strips 12 are oriented in a longitudinal direction L of the cooling element 6 or the HNB article 2.
  • the individual strips 12 have a width that is greater than or equal to 0.5 mm and less than or equal to 4 mm.
  • the strips 12 are cut from a material web, for example a film, the material thickness of which is greater than or equal to 50 pm and less than or equal to 100 pm. Accordingly, the strips 12 have a material thickness that is in this range. In particular, it is provided that all strips 12 enclosed by the cooling element 6 have the same width.
  • the HNB article 2 shows a rod-shaped HNB article 2 according to a further exemplary embodiment.
  • the HNB article 2 differs from the HNB article 2 known from FIG. 1 by the design of the cooling element 6.
  • the cooling element shown in this drawing comprises one A large number of fibers 14, only a few of which are provided with reference numerals for reasons of clarity.
  • the fibers 14 are oriented in a longitudinal direction L of the HNB article 2.
  • the fibers 14 have a diameter that is greater than or equal to 40 pm and less than or equal to 350 pm.
  • FIG. 3 shows an HNB article 2 according to a further exemplary embodiment. Again, this differs from the previously described HNB articles 2 only in the design of the cooling element 6.
  • the cooling element 6 according to the exemplary embodiment shown in FIG. 3 is a tube 16 which extends in the longitudinal direction L.
  • the tube 16 has a cooling substrate on its inside 18 on.
  • FIG. 3a shows a further HNB article 2 in accordance with an exemplary embodiment.
  • the HNB article 2 shown is structured similarly to that already in
  • the cooling element 6 in the embodiment shown in FIG. 3a is a tube 16 which extends in the longitudinal direction L and which has on its inside a cooling substrate 18 which is made of paper and / or cardboard is made. Likewise, the tube 16 itself can be made of paper and / or cardboard.
  • the cooling element 6 can be designed as a double-walled tube 19, which is made of paper and / or cardboard.
  • the double-walled tube 19 comprises an inner tube, the inner jacket surface of which adjoins the interior 24.
  • the double-walled tube 19 comprises an outer tube, the outer jacket surface of which adjoins the outer shell 10.
  • the inner tube forms the cooling substrate 18.
  • the outer tube of the double-walled tube 19 forms the tube 16 which extends in the longitudinal direction L of the HNB article 2.
  • the double-walled tube 19 comprises at least one opening 21 which extends from an outer lateral surface of the outer tube through the double Wall tube 19 extends through to an inner surface of the inner tube.
  • the opening 21 opens out into the interior 24.
  • the outer casing 10 is also provided with an opening which is aligned with the opening 21 in the double-walled tube 19, so that, as indicated by an arrow, ambient air can flow into the interior 24 through the opening 21. This inflowing ambient air mixes in the interior 24 with the aerosol-containing air stream and contributes to its cooling.
  • a perforation can be provided along a circumference of the double-walled tube 19, the perforations 21 forming the perforation being provided at regular intervals along a circumferential line.
  • a plurality of openings 21 can be provided, which are arranged along a plurality of circumferences, that is to say on a plurality of circular paths arranged parallel to one another.
  • the HNB article 2 is also provided without the at least one opening 21.
  • the inner tube made of paper and / or paper acts as a cooling substrate 18.
  • the cooling element 6 which is not further specified, can be designed in accordance with one of the aforementioned exemplary embodiments. 1 to 3, the aerosol-forming substrate 4 and the cooling element 6 can, for example, be arranged such that they are spaced apart from one another by a gap in the longitudinal direction L. In this way, direct heat transfer from the aerosol-forming substrate 4 into the cooling element 6 is avoided.
  • the distance element element 20 is, for example, a cardboard tube or the like. It is also used for heat insulation between the aerosol-forming substrate 4 and the cooling element 6.
  • the cooling elements 6 of the above-mentioned exemplary embodiments are all designed so that their cooling substrate has a porosity that is between 51% and 99%. A quotient of the free cross-sectional area to the total cross-sectional area, ie, not taken up by the cooling substrate, is considered under the porosity of the cooling element 6.
  • the total cross-sectional area is surrounded by the inner wall of the common outer shell 10.
  • a polymer is used as the cooling substrate, which shows an endothermic phase transition in a temperature range between 40 ° C. and 80 ° C.
  • the polymer is, for example, polylactide (also referred to as PLA).
  • the strips 12 or the fibers 14 from which the cooling element 6 is produced in accordance with the exemplary embodiments shown in FIGS. 1 and 2 can, as indicated in the figures, be straight, i.e. be arranged in a line, at least approximately parallel to the longitudinal direction L. However, it is also provided that the strips 12 or fibers 14 are twisted or braided.
  • FIG. 5 shows a schematic and simplified perspective view of a half-opened cooling element 6, which comprises a multiplicity of fibers 14 twisted together.
  • FIGS 6 to 9 show simplified schematic cross-sectional views through different cooling elements 6 of an HNB article 2.
  • FIG. 6 shows a cross section through a cooling element 6, in which a multiplicity of strips 12 are arranged.
  • the strips 12 all extend at least approximately parallel and over the entire length of the cooling element 6 measured in the longitudinal direction L. However, they are viewed statistically arranged in cross-section.
  • FIG. 7 shows a cooling element 6, which comprises a multiplicity of fibers 14.
  • the fibers 14 all have at least approximately the same diameter.
  • Cavities or channels are formed between the strips 12 and between the fibers 14, which allow the aerosol to pass through the cooling element 6. Viewed in cross-section, these free spaces or channels form the free cross-sectional area, which makes up between 51% and 99% of the total cross-sectional area.
  • FIG. 8 shows a cooling element 6 which comprises a tube 16 which has been rolled out of a web.
  • the longitudinal edges of the web abut on a first abutting edge 22.
  • the first abutting edge 22 runs in
  • the longitudinal edges of the web overlap one another in order to form the tube 16.
  • the cooling substrate 18 which according to the exemplary embodiment shown in FIG. 8 is a foil.
  • This film is inserted into the tube 16.
  • a butt edge forms, in this case the second butt edge 26.
  • the cooling substrate 18 is inserted into the tube 16 such that the first butt edge 22 and the second butt edge 26 are offset in the circumferential direction.
  • FIG. 9 shows a further cross section through a cooling element 6, which comprises a tube 16.
  • the tube 16 is rolled from a web, the longitudinal edges of the web overlapping one another.
  • the web is connected to one another in the overlap area, for example glued.
  • a longitudinal axial structure 28 which is designed in the manner of a corrugated cardboard structure. Both the surface of this longitudinal-axial structure 28 and the surface of the tube 16 facing the interior 24 can be coated with a cooling substrate 18 be coated.
  • the longitudinal-axial structure 28 forms channels 30 between the inner wall 24 of the tube 16 and the structure 28.
  • the cooling element 6 of the HNB article 2 comprises three segments 32a, 32b and 32c .
  • the first segment 32a is configured like the cooling element 6, which is explained in connection with FIG. 1.
  • the second segment 32b is configured like the cooling element 6, which was explained in connection with FIG. 3.
  • the third segment 32c is configured in the same way as the cooling element 6, which was explained in connection with FIG. 2.
  • the segments 32a, 32b and 32c together form the cooling element 6, the same aspects and further training options as those previously mentioned with regard to the correspondingly configured cooling elements 6 apply to the configuration of the segments 32a, 32b and 32c .
  • the arrangement and number of segments 32a, 32b and 32c to the common cooling element 6 can be varied.
  • Each cooling element and / or each segment of a cooling element can of course be provided with a separate wrapping material, not shown in some drawings. This results from an advantageous manufacturing process, for example in the strand process.

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  • Materials Engineering (AREA)

Abstract

L'invention concerne un article de génération d'aérosol en forme de tige (2), comprenant un substrat formant un aérosol (4) et un élément de refroidissement (6) placé en aval du substrat (4), l'élément de refroidissement (6) comprenant un substrat de refroidissement (18) et l'élément de refroidissement (6) présentant une porosité entre 51 % et 99 %, comme porosité, on considère le quotient de la section transversale libre, non occupée par le substrat de refroidissement, à la section transversale totale.
PCT/EP2019/077527 2018-10-26 2019-10-10 Article de génération d'un aérosol en forme de tige, élément de refroidissement d'un article de génération d'un aérosol ainsi qu'utilisation de ceux-ci Ceased WO2020083657A1 (fr)

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DE102018126778.9 2018-10-26
DE102018126778.9A DE102018126778A1 (de) 2018-10-26 2018-10-26 Stabförmiger HNB-Artikel, Kühlelement eines HNB-Artikels sowie Verwendung desselben

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200268043A1 (en) * 2019-02-25 2020-08-27 Republic Technologies (Na) Llc Cardboard Filter For Cigarettes, Cigarette And Manufacturing Method Thereof
CN113679096A (zh) * 2021-08-31 2021-11-23 安徽中烟工业有限责任公司 一种颗粒型加热卷烟烟支及其制备方法
WO2025132519A1 (fr) * 2023-12-18 2025-06-26 Philip Morris Products S.A. Élément de canalisation d'air pour un article de génération d'aérosol

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2760303A2 (fr) 2011-12-30 2014-08-06 Philip Morris Products S.a.s. Article générateur d'aérosol destiné à être utilisé avec un dispositif générateur d'aérosol
US20170042221A1 (en) * 2014-04-30 2017-02-16 British American Tobacco (Investments) Limited Aerosol-cooling element and arrangements for use with apparatus for heating a smokable material
WO2017182485A1 (fr) * 2016-04-20 2017-10-26 Philip Morris Products S.A. Élément générateur d'aérosol hybride et procédé de fabrication d'un élément générateur d'aérosol hybride
US20180177235A1 (en) * 2015-06-23 2018-06-28 Philip Morris Products S.A. Aerosol-generating article and method for manufacturing aerosol-generating articles
WO2019105750A1 (fr) * 2017-11-28 2019-06-06 British American Tobacco (Investments) Limited Génération d'aérosol
WO2019158334A1 (fr) * 2018-02-15 2019-08-22 Philip Morris Products S.A. Article de génération d'aérosol comprenant un élément de refroidissement d'aérosol

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2760303A2 (fr) 2011-12-30 2014-08-06 Philip Morris Products S.a.s. Article générateur d'aérosol destiné à être utilisé avec un dispositif générateur d'aérosol
US20170042221A1 (en) * 2014-04-30 2017-02-16 British American Tobacco (Investments) Limited Aerosol-cooling element and arrangements for use with apparatus for heating a smokable material
US20180177235A1 (en) * 2015-06-23 2018-06-28 Philip Morris Products S.A. Aerosol-generating article and method for manufacturing aerosol-generating articles
WO2017182485A1 (fr) * 2016-04-20 2017-10-26 Philip Morris Products S.A. Élément générateur d'aérosol hybride et procédé de fabrication d'un élément générateur d'aérosol hybride
WO2019105750A1 (fr) * 2017-11-28 2019-06-06 British American Tobacco (Investments) Limited Génération d'aérosol
WO2019158334A1 (fr) * 2018-02-15 2019-08-22 Philip Morris Products S.A. Article de génération d'aérosol comprenant un élément de refroidissement d'aérosol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200268043A1 (en) * 2019-02-25 2020-08-27 Republic Technologies (Na) Llc Cardboard Filter For Cigarettes, Cigarette And Manufacturing Method Thereof
US12137728B2 (en) * 2019-02-25 2024-11-12 Republic Technologies (Na) Llc Cardboard filter for cigarettes, cigarette and manufacturing method thereof
CN113679096A (zh) * 2021-08-31 2021-11-23 安徽中烟工业有限责任公司 一种颗粒型加热卷烟烟支及其制备方法
WO2025132519A1 (fr) * 2023-12-18 2025-06-26 Philip Morris Products S.A. Élément de canalisation d'air pour un article de génération d'aérosol

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