Materials for use as components of aerosol provision articles
By using regenerated cellulose fiber nonwoven materials and optimizing the bulk density and fiber composition, the problems of biodegradability and pressure drop performance of filter materials in aerosol generation products have been solved, achieving more efficient material use and environmentally friendly filtration effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NICOVENTURES TRADING LTD
- Filing Date
- 2024-08-01
- Publication Date
- 2026-06-26
AI Technical Summary
Among existing aerosol-generating products, the biodegradability and pressure drop performance of filter materials need to be improved, and there is room for improvement in material utilization efficiency and environmental impact.
Nonwoven materials containing regenerated cellulose fibers are used to form nonwoven sheets through a hydroentangling process, controlling the bulk density within the range of 0.1 g/cm3 to 0.4 g/cm3. By combining regenerated cellulose fibers with different monofilament deniers, the fiber length and shape are optimized to form components with excellent filtration performance.
It improves the biodegradability and filtration efficiency of the material, reduces manufacturing costs and environmental impact, while providing stable pressure drop performance and higher material utilization efficiency.
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Figure CN122295007A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to materials used as components for aerosol provision articles. Background Technology
[0002] Popular aerosol generating articles can have a generally cylindrical rod-like structure and can include a charge, roll, or column of a smokeable material, such as shredded tobacco (e.g., in the form of cut filler), surrounded by wrapping paper, thus forming an aerosolizable material rod. Typically, aerosol generating articles have a filter element aligned end-to-end with the aerosolizable material rod. The filter element typically comprises a plasticized cellulose acetate filament tow rod surrounded by a paper material called plug wrap, and the filter is attached to one end of the aerosolizable material rod using a surrounding wrapping material called tipping material. Summary of the Invention
[0003] According to the present invention, a material is provided for use as a component in an aerosol supply article. The material comprises multiple fibers containing regenerated cellulose and an adhesive, wherein the material has a bulk density in the range of about 0.1 g / cm³ to about 0.4 g / cm³.
[0004] In some embodiments, multiple fibers may have a density of approximately 0.12 g / cm³. 3 To approximately 0.3 g / cm 3 The bulk density is within a certain range. In some embodiments, multiple fibers may have a bulk density of about 0.15 g / cm³. 3 To approximately 0.25 g / cm 3 The packing density within the range.
[0005] In some embodiments, the multiple fibers may be discontinuous. In some embodiments, the multiple fibers may have a fiber length ranging from about 10 mm to about 60 mm. In some embodiments, the multiple fibers may be wet-laid.
[0006] In some embodiments, the adhesive may comprise between 2% and 10% by weight of the components used in the aerosol supply article. In some embodiments, the adhesive may contain pectin. In some embodiments, the adhesive may contain about 4% pectin by weight of the component.
[0007] In some embodiments, the multiple fibers may have a denier per filament in the range of about 1 dpf to about 30 dpf. In some embodiments, the multiple fibers may have a denier per filament in the range of about 1 dpf to about 20 dpf. In some embodiments, the multiple fibers may have a denier per filament in the range of about 1 dpf to about 10 dpf.
[0008] In some embodiments, the multiple fibers may consist of regenerated cellulose and account for between 90% and 100% by weight of the fibers included in the material.
[0009] In some embodiments, the plurality of fibers may include a first plurality of regenerated cellulose fibers and a second plurality of regenerated cellulose fibers, wherein the first plurality of regenerated cellulose fibers may have a greater denier than the second plurality of regenerated cellulose fibers. In some embodiments, the first plurality of regenerated cellulose fibers may have a denier in the range of about 10 dpf to about 30 dpf, and the second plurality of regenerated cellulose fibers may have a denier in the range of about 1 dpf to about 10 dpf.
[0010] In some embodiments, the plurality of regenerated cellulose fibers may include a first plurality of regenerated cellulose fibers ranging from about 60% to about 90% by weight and a second plurality of regenerated cellulose fibers ranging from about 10% to 40% by weight.
[0011] In some embodiments, the multiple fibers may have a fiber length ranging from about 10 mm to about 60 mm. In some embodiments, the maximum dimension of the cross-section of each filament may be greater than 10 μm.
[0012] In some embodiments, the material may be crimped. In some embodiments, the material may have a crimp depth in the range of about 1 μm to about 800 μm.
[0013] In some implementations, the material may be in the form of a sheet or an elongate body of material.
[0014] In some embodiments, the material may have a concentration of 30 to 150 g / m³. 2 30 to 120 g / m 2 Or 40 to 100 g / m 2 The material can be in the form of a sheet with a weight between 60 and 500 µm or between 150 and 350 µm. In some embodiments, the material can be in the form of a sheet with a thickness between 0.2 and 0.3 g / cm³. 3 Or 0.22 to 0.28 g / cm³ 3 Sheet form with a bulk density.
[0015] In some embodiments, the material may be in the form of a non-woven sheet aggregated to form a rod-shaped element. In some embodiments, when aggregated to form a rod-shaped element, the non-woven sheet may be uncrimped and non-pleated.
[0016] In some embodiments, the material may be in the form of multiple nonwoven sheets aggregated to form a rod-shaped element. In some embodiments, when aggregated to form a rod-shaped element, the multiple nonwoven sheets may be uncurled and unpleated.
[0017] In some embodiments, the material may be in the form of a nonwoven sheet. In some embodiments, the material may be in the form of a pleated sheet. In some embodiments, the material may be in the form of a pleated nonwoven sheet. In some embodiments, the sheet may have a basis weight in the range of about 30 gsm to about 120 gsm. In some embodiments, the sheet may be aggregated to form a rod-shaped element. In some embodiments, the sheet may have a width in the range of about 5 mm to about 200 mm. In some embodiments, the sheet may have a width in the range of about 50 mm to about 200 mm. In some embodiments, the sheet may have a width in the range of about 50 mm to about 120 mm.
[0018] In some embodiments, the material may have a content of 0.1 to 0.3 g / cm³. 3 Or 0.14 to 0.22 g / cm³ 3 The bulk density of an elongated body of material (a thin, elongated body of material).
[0019] In some embodiments, the elongated material body may include multiple fibers that extend longitudinally from a first end of the body through the body to a second end of the body.
[0020] In some embodiments, the elongated material body may include rod-shaped elements having a circumference between about 16 mm and about 25 mm, or between about 18 mm and about 23 mm.
[0021] In some embodiments, the material may also include a plasticizer.
[0022] In some embodiments, the multiple regenerated cellulose fibers may include at least one of viscose, lyocell, rayon, viscose rayon, cupro, and modal.
[0023] In some embodiments, the multiple regenerated cellulose fibers may be composed of lyocell fibers and are the only fibers included in the material. In some embodiments, the multiple regenerated cellulose fibers may be composed of viscose fibers and are the only fibers included in the material.
[0024] In some embodiments, the material may include about 5 to about 60 wt% of aerosol-former material based on dry weight, or between about 15 and about 50 wt% of aerosol-former based on dry weight.
[0025] 36. The material according to any one of the preceding claims, wherein the material comprises an active substance and / or a flavoring agent.
[0026] In some embodiments, the rod-shaped element may have a circumference between about 16 mm and about 25 mm, or between about 18 mm and about 23 mm.
[0027] In another aspect of the invention, a component for use in an aerosol supply article is provided. The component comprises the material according to any one of claims 1 to 36.
[0028] In some embodiments, the component may be rod-shaped. In some embodiments, the rod-shaped component may have a hardness of about 80% or higher.
[0029] In some implementations, the component may exhibit a voltage drop in the range of approximately 1 mmWG per mm component length to approximately 6.5 mmWG per mm component length.
[0030] In some embodiments, the component may be a filter segment (filter tip segment). In some embodiments, the component may be an aerosol generation segment.
[0031] In another aspect of the invention, an aerosol supply article is provided, comprising a component according to any one of claims 37 to 42.
[0032] In some embodiments, the article may be an article used in a non-flammable aerosol supply system.
[0033] In another aspect of the invention, a method is provided for forming a material suitable for use as a component in an aerosol supply article. The method includes: providing a plurality of fibers comprising regenerated cellulose; and processing the plurality of fibers to provide a material suitable for use as a component in an aerosol supply article, wherein the material has a content of about 0.1 g / cm³. 3 Approximately 0.4 g / cm³ 3 The packing density within the range.
[0034] In some embodiments, providing multiple fibers may include providing multiple continuous fibers in the form of a tow, and wherein processing multiple fibers includes aggregating multiple fibers to form an elongated material body.
[0035] In some embodiments, providing multiple fibers may include providing multiple fibers in the form of a sheet, and wherein processing the multiple fibers includes aggregating the sheet to form an elongated material body. Attached Figure Description
[0036] Embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings, wherein: Figure 1 A schematic perspective view of the material used as a component is shown; Figure 2 A schematic perspective view of a component used in an aerosol supply article is shown; Figure 3 A schematic perspective view of the aerosol supply article is shown; Figure 4 A schematic exploded view of the aerosol supply product is shown; Figure 5 A schematic diagram of an aerosol delivery device is shown; Figure 6 A schematic perspective sectional view of the component is shown; Figure 7 A schematic perspective view of the material is shown; Figure 8 Components for aerosol supply products are shown; Figure 9 A schematic cross-sectional view of the component is shown; Figure 10 A cross-sectional view of the aerosol supply product is shown; Figure 11 A cross-sectional view of the aerosol supply product is shown; Figure 12 A cross-sectional view of the aerosol supply product is shown; Figure 13 A perspective view of the aerosol supply product is shown; Figure 14 A schematic diagram of the component manufacturing equipment is shown; Figure 15 A schematic diagram of the aerosol supply product is shown; Figure 16 A schematic diagram of the aerosol supply product is shown; Figure 17 A schematic diagram of the aerosol supply product is shown; Figure 18 A schematic diagram of the aerosol supply product is shown; Figure 19 A schematic diagram of the aerosol supply product is shown; Figure 20 A schematic diagram of the aerosol supply product is shown; and Figure 21 A schematic diagram of the materials used in the components for aerosol supply products is shown. Detailed Implementation
[0037] For reference Figure 1 Material 1 is shown, which is used in the aerosol supply of article 3 (shown in...). Figure 3 In the middle) as component 2 (shown in Figure 2 (In Chinese) for use. In one aspect of the invention, a material 1 comprising a plurality of fibers 5 is provided. The plurality of fibers 5 comprise regenerated cellulose fibers. The material 1 has a content of about 0.1 g / cm³. 3 To approximately 0.40 g / cm 3 The packing density within the range.
[0038] The multiple regenerated cellulose fibers 5 can be discontinuous fibers. The multiple fibers can be hydroentangled.
[0039] The bulk density of multiple fibers 5 of regenerated cellulose can be calculated without considering any other characteristics of material 1, component 2, or article 3 when material 1 is formed into part 2 or article 3, such as wrapping material, aerosol generating material, aerosol modified component, or other component.
[0040] As described above, material 1 can have a content of about 0.10 g / cm³.3 To approximately 0.40 g / cm 3 The bulk density is within the range. In some embodiments, material 1 may have a bulk density of about 0.10 g / cm³. 3 To approximately 0.30 g / cm 3 The bulk density is within the range. In some embodiments, material 1 may have a bulk density of about 0.13 g / cm³. 3 To approximately 0.18 g / cm 3 The bulk density is within the range. In some embodiments, material 1 may have a bulk density of about 0.15 g / cm³. 3 Approximately 0.17 g / cm³ 3 The packing density.
[0041] The bulk density of material 1 can be tailored to provide a satisfactory pressure drop for the user when the material is formed for use in article 3 or for component 2 in article 3. Furthermore, reducing the bulk density of material 1 improves cost efficiency and material usage, and thus reduces the manufacturing impact on the environment.
[0042] It should be understood that although the multiple fibers 5 have been previously described as containing regenerated cellulose, it is possible that the multiple fibers 5 forming the material 1 are composed of or are substantially composed of regenerated cellulose fibers.
[0043] In some embodiments, the component 2 formed from the filter material 1, which is formed from the fibers 5 of regenerated cellulose, can be a filter component. In this sense, the material 1 can be considered a filter material. In some embodiments, the component 2 formed from the material 1, which is formed from the fibers 5 of regenerated cellulose, can be a component different from a filter component. For example, the component 2 formed from the material 1 can be included in the aerosol supply article 3 to help achieve the desired pressure drop on the aerosol supply article 2.
[0044] In some embodiments, material 1 may be provided in the form of a nonwoven sheet. The nonwoven sheet may contain multiple discontinuous fibers 5. Material 1 may be assembled into any desired form to form component 2. Component 2 may form a filter section and / or aerosol generating section of article 3, which may be configured to be heated by, for example, an aerosol generating device to release aerosols. Multiple regenerated cellulose fibers 5 may advantageously provide improved biodegradability compared to fiber types typically used in, for example, filter sections of conventional cigarettes, such as cellulose acetate.
[0045] Multiple regenerated cellulose fibers 5 may be the only type of fiber present in material 1. That is, the multiple fibers 5 in material 1 may consist of regenerated cellulose fibers. As used herein, the term "fiber" may be defined as a basic unit (element, component, element) of textiles. It should be noted that the filter material of the present invention may include any of the disclosed fibers 5 alone or in combination with one or more other fiber inputs. Fibers may be in the form of rope-like or thread-like units. The term "fiber" is intended to include fibers, filaments, etc.
[0046] Regenerated cellulose can be considered a class of materials manufactured by converting natural cellulose into soluble cellulose derivatives or directly dissolving cellulose pulp and then regenerating it via a wet spinning process. Therefore, regenerated cellulose fibers can be considered a class of materials manufactured by converting natural cellulose into soluble cellulose derivatives or directly dissolving cellulose pulp and then regenerating it in fibrous form. The main difference between regenerated cellulose fibers and known materials used in filters, such as cellulose acetate, is that regenerated cellulose fibers are in pure cellulose form, while cellulose acetate fibers are a modified form of cellulose obtained by adding acetyl groups to the cellulose polymer.
[0047] Regenerated cellulose fibers are typically prepared by: extracting a non-cellulose compound from wood, contacting the extracted wood with caustic soda, followed by carbon disulfide, and then with sodium hydroxide, to obtain a viscous solution by directly dissolving high-purity cellulose pulp using NMMO. The solution is then forced through a spinneret to produce viscous threads (filaments, strands, threads) of regenerated fibers. The method of preparing regenerated cellulose is not considered to limit the scope of the invention. The multiple regenerated cellulose fibers 5 can be, for example, but not limited to, viscose, lyocell, rayon, viscose rayon, cuprammonium fiber, and modal.
[0048] In some embodiments, the plurality of fibers 5 may be composed of regenerated cellulose. In some embodiments, the plurality of fibers 5 may constitute between 90% and 100% by weight of the fibers included in the material.
[0049] In some embodiments, the multiple regenerated cellulose fibers 5 are composed of lyocell fibers and are the only fibers included in material 1. In some embodiments, the multiple regenerated cellulose fibers 5 are composed of viscose fibers and are the only fibers included in material 1.
[0050] The denier per filament (dpf) of the multiple regenerated cellulose fibers 5 can range from 1 to 30. Denier per fiber is a measure of the weight per unit length of a single filament (individual filament) of a fiber. The denier per filament of regenerated cellulose fibers is expressed in grams per 9000 meters. The denier per filament can be manipulated or selected to achieve a desired pressure drop on material 1 or in components 2 formed from material 1, such as filter elements formed from the multiple regenerated cellulose fibers 5.
[0051] In some embodiments, the denier of the multiple regenerated cellulose fibers 5 can range from about 1 dpf to about 20 dpf. In some embodiments, the denier of the multiple regenerated cellulose fibers 5 can range from about 1 dpf to about 10 dpf.
[0052] In some embodiments, the denier of the single filaments of the multiple regenerated cellulose fibers 5 can range from about 1 dpf to about 8 dpf, or about 1 dpf to about 6 dpf, or about 1 dpf to about 5 dpf, or about 1 dpf to about 4 dpf, or about 1 dpf to about 3 dpf. In some embodiments, the denier of the single filaments of the multiple regenerated cellulose fibers 5 can range from about 1.5 dpf to about 10 dpf, or about 1.5 dpf to about 6 dpf, or about 1.5 dpf to about 5 dpf, or about 1.5 dpf to about 4 dpf, or about 1.5 dpf to about 3 dpf.
[0053] In some embodiments, the plurality of regenerated cellulose fibers 5 of material 1 may comprise a first plurality of regenerated cellulose fibers and a second plurality of regenerated cellulose fibers. The first plurality of regenerated cellulose fibers may have a greater denier (dpf) than the second plurality of regenerated cellulose fibers. The first plurality of regenerated cellulose fibers may be formed from regenerated cellulose fibers having a denier in the range of about 10 dpf to about 30 dpf. The second plurality of regenerated cellulose fibers may be formed from regenerated cellulose fibers having a denier in the range of about 1 dpf to about 10 dpf.
[0054] In some embodiments, the first plurality of regenerated cellulose fibers 5 may be formed from regenerated cellulose fibers having a monofilament denier in the range of about 15 dpf to about 30 dpf, and the second plurality of regenerated cellulose fibers 5 may be formed from regenerated cellulose fibers having a monofilament denier in the range of about 1 dpf to about 6 dpf.
[0055] In some embodiments, the first plurality of regenerated cellulose fibers 5 may be formed from regenerated cellulose fibers having a monofilament denier in the range of about 18 dpf to 27 dpf. In some embodiments, the first plurality of regenerated cellulose fibers 5 may be formed from regenerated cellulose fibers having a monofilament denier in the range of about 20 dpf to about 25 dpf.
[0056] In some embodiments, the second plurality of regenerated cellulose fibers 5 may be formed from regenerated cellulose fibers having a denier of monofilament in the range of about 1 dpf to about 5 dpf, about 1 dpf to about 4 dpf, about 1 dpf to about 3 dpf, or about 1 dpf to about 2 dpf.
[0057] In some embodiments, the ratio of the first plurality of regenerated cellulose fibers to the second plurality of regenerated cellulose fibers may be in the range of about 90:10 to about 60:40 by weight. In some embodiments, the plurality of fibers 5 may comprise a first plurality of regenerated cellulose fibers in the range of about 60% to about 90% by weight and a second plurality of regenerated cellulose fibers in the range of about 10% to about 40% by weight. For example, material 1 may be formed from about 20% of 1.5 dpf regenerated cellulose fibers and 80% of 25 dpf regenerated cellulose fibers.
[0058] In some embodiments, the multiple regenerated cellulose fibers 5 may comprise more than two types of fibers with different denier numbers. In some embodiments, the multiple regenerated cellulose fibers 5 may comprise a first multiple regenerated cellulose fiber having a denier number of about 5 dpf to about 10 dpf, a second multiple regenerated cellulose fiber having a denier number of about 2 dpf to about 5 dpf, and a third multiple regenerated cellulose fiber having a denier number of less than about 2 dpf.
[0059] The first plurality of regenerated cellulose fibers 5 may constitute from about 30% to about 60% of the material 1 by weight. The second plurality of regenerated cellulose fibers 5 may constitute from about 25% to about 30% of the material 1 by weight. The third plurality of regenerated cellulose fibers 5 may constitute from about 5% to 20% of the material 1 by weight.
[0060] For example, in one embodiment, the multiple regenerated cellulose fibers 5 may comprise a first multiple regenerated cellulose fiber having a monofilament denier of about 5.4 dpf, a second multiple regenerated cellulose fiber having a monofilament denier of about 2.7 dpf, and a third multiple regenerated cellulose fiber having a monofilament denier of about 1.4 dpf. The three multiple (three pluralities of) regenerated cellulose fibers may be present in a ratio of 40:40:20 by weight.
[0061] In another embodiment, the multiple regenerated cellulose fibers 5 may comprise a first multiple regenerated cellulose fiber having a monofilament denier of about 5.4 dpf and a second multiple regenerated cellulose fiber having a monofilament denier of about 2.7 dpf. The two multiple (two pluralities of) regenerated cellulose fibers may be present in a ratio of 40:60 by weight.
[0062] In another embodiment, the multiple regenerated cellulose fibers 5 may comprise a first multiple regenerated cellulose fiber having a monofilament denier of about 5.4 dpf, a second multiple regenerated cellulose fiber having a monofilament denier of about 2.7 dpf, and a third multiple regenerated cellulose fiber having a monofilament denier of about 1.4 dpf. The three pluralities of regenerated cellulose fibers may be present in a ratio of 60:30:10 by weight.
[0063] It has been found that combinations of first and second regenerated cellulose fibers with different monofilament deniers, and optionally additional multiple regenerated cellulose fibers, improve the tensile strength of the material, which in turn improves the operability of material 1 in manufacturing equipment such as, for example, filter manufacturing machines. Furthermore, combinations of first and second multiple regenerated cellulose fibers with different monofilament deniers allow for customization of filtration efficiency and pressure drop on components 2 formed from material 1, as well as the stiffness and elasticity of the nonwoven material.
[0064] By customizing the stiffness and elasticity of material 1, its variability can be reduced, allowing it to be aggregated more consistently. This, in turn, provides a more consistent pressure drop across the component 2 formed from material 1. The increased flexibility associated with spunlace regenerated cellulose materials results in a lower void fraction in components formed from them. Generally, higher material stiffness correlates with higher void fraction.
[0065] Porosity can be considered as the ratio of the space between materials to the cross-sectional area of the component when materials are aggregated into a part. When aggregated into a component, the porosity of the material can range from about 5% to about 30%, depending on the fiber's dpf (dextrous fiber density).
[0066] For a dpf range of approximately 1 to approximately 5 dpf, the porosity can be in the range of approximately 5% to approximately 10%. For a dpf range of approximately 15 to approximately 25 dpf, the porosity can be in the range of approximately 20% to approximately 30%.
[0067] In some embodiments, the multiple regenerated cellulose fibers 5 can be staple fibers. That is, the multiple regenerated cellulose fibers 5 can be discontinuous. In other words, when forming fibers, they can be formed as discrete fibers of a specific length. This is the opposite of the formation of tows used in delivery systems, where tows are manufactured into long, continuous fibers through a drawing process. In some embodiments, the length of the multiple short regenerated cellulose fibers 5 can be in the range of about 30 mm to about 60 mm. The length of the regenerated cellulose fibers can be considered as the extended length (spread length, extended length) or the pre-crimped length of the regenerated cellulose fibers.
[0068] In some embodiments, the cross-sectional shape of the fibers in the direction perpendicular to their length can be substantially circular. In such embodiments, the diameter of each of the plurality of regenerated cellulose fibers 5 can be greater than 10 μm. Regenerated cellulose fibers of this size can help prevent the fibers 5 from detaching from the material 1 and reduce the risk of inhalation. In some embodiments, when the material 1 is used in an article having a fine filter material section located downstream of the section formed by the material 1, the diameter of at least some or each of the plurality of regenerated cellulose fibers 5 can be less than 10 μm.
[0069] In some embodiments, the cross-section of each of the multiple regenerated cellulose fibers 5 may be a shape other than substantially circular, such as, but not limited to, a “Y” shape. Irregularly shaped fibers, such as “Y”-shaped fibers, have the advantage that they have a larger surface area and are therefore able to provide better filtration and higher pressure drop. In such embodiments, the maximum dimension between points on the outer perimeter of the shape (outer perimeter, circumference, perimeter) can be greater than 10 μm.
[0070] In some embodiments, the multiple regenerated cellulose fibers 5 may have a fiber length to diameter ratio in the range of about (60 mm / 100 μm) 600:1 to about (30 mm / 10 μm) 3000:1.
[0071] In some embodiments, material 1 may be provided in the form of a sheet or a bulk material. Material 1 may have a content of 30 to 150 g / m². 2 30 to 120 g / m 2 Or 40 to 100 g / m 2 The material is in sheet form and its weight is within the sheet material. The sheet material can have a thickness between 60 and 500 µm or between 150 and 350 µm.
[0072] In some embodiments, material 1 may be provided in the form of a nonwoven sheet formed of a plurality of regenerated cellulose fibers 5. The term “nonwoven” is used in the context of this application to refer to fibrous material, web (fiber web, web), mat (fiber mat), or sheet, wherein the plurality of regenerated cellulose fibers are arranged in an undefined or random orientation.
[0073] To form Material 1, multiple nonwoven regenerated cellulose fibers initially exist as unbonded fibers or filaments. These multiple nonwoven regenerated cellulose fibers or filaments can then be bound together (bound, encapsulated, or bound).
[0074] In this embodiment, material 1 can be produced in the form of multiple nonwoven regenerated cellulose fibers 5 by hydroentangling multiple regenerated cellulose fibers 5. The multiple regenerated cellulose fibers 5 can be hydroentangled to produce material 1 with the desired physical properties.
[0075] The present invention also provides a method for forming a material 1 suitable for use as a component 2 in an aerosol supply article 3. The method includes extruding multiple fibers comprising regenerated cellulose, hydroentangling the fibers to form a nonwoven sheet, and processing the nonwoven sheet to provide a material suitable for use as a component in an aerosol supply article. The advantage of nonwoven materials formed from hydroentangled fibers is their lower stiffness compared to other nonwoven materials. This results in the material more easily agglomerating into rod-shaped components, and thus the resulting components exhibit less and smaller voids.
[0076] Material 1, comprising multiple nonwoven regenerated cellulose fibers 5, can be processed to provide material 1 suitable for use in components 2 of aerosol supply articles 3, such as, but not limited to, filter components of consumable articles. For example, a nonwoven web (web) of material 1 formed from multiple regenerated cellulose fibers 5 can be passed through a sheet preforming unit and pleated to form a rod-shaped component comprising multiple pleats.
[0077] The rod-shaped component 2 can then be wrapped with a material to form a continuous rod, which can be used as component 2 in an aerosol supply article 3, such as a filter component. The width of the sheet-like material 1 can vary. Typically, the width of the sheet of material 1 is such that it can be pleated to form the width of component 2.
[0078] The total width of the sheet of material 1 used to form component 2 can depend on a number of factors, such as the thickness of the sheet of material 1, the number of pleats required, the characteristics of the pleats produced, the surface characteristics of the material (i.e., fiber surface or smooth surface), the porosity of the material, the moisture content of the material, the lubrication characteristics of the material, the frictional characteristics of the mesh preforming equipment relative to the sheet of material 1, and other such factors.
[0079] In some embodiments, the nonwoven sheet of material 1 may have a width ranging from about 5 mm to about 200 mm. In some embodiments, the nonwoven sheet of material 1 may have a width ranging from about 50 mm to about 200 mm. In some embodiments, the nonwoven sheet of material 1 may have a width ranging from about 50 mm to about 120 mm. In some embodiments, the nonwoven sheet of material 1 may have a width ranging from about 60 mm to about 80 mm.
[0080] In some embodiments, the nonwoven sheet of material 1 may include at least one slit. In some embodiments, the nonwoven sheet of material 1 may include multiple slits. At least one slit may extend longitudinally through material 1. It is not intended to be theoretically correct, but it is thought that when material 1 aggregates, the slit allows material 1 to align more consistently and uniformly within component 2, which improves the pressure drop across component 2. The slits in the sheet of material 1 cause material 1 to expand or “bloom,” providing enhanced filtration performance.
[0081] In some embodiments, the nonwoven sheet of material 1 may undergo a curling step. Curling can be considered as a parameter referring to the texture or waviness of individual regenerated cellulose fibers 5, or as a parameter referring to the texture or waviness of the nonwoven sheet of material 1 as a whole. The amplitude or depth of a single curl can be measured in micrometers. The amplitude or depth of a single curl is an indirect measure of the degree of curling applied to the nonwoven sheet of material 1.
[0082] In some embodiments, curling the nonwoven sheet of material 1 may involve passing the nonwoven sheet of material 1 through one or more curling rollers and / or embossing rollers configured to bend the nonwoven sheet of material 1, thereby providing a curled nonwoven sheet of material 1. Typically, the nonwoven sheet of material 1 is passed through curling rollers and / or embossing rollers having a specific depth to achieve a desired curl amplitude or depth in the curled nonwoven sheet of material 1. That is, the curling rollers and / or embossing rollers may include features having a specific amplitude or depth configured to achieve a desired curl amplitude or depth in the curled nonwoven sheet of material 1.
[0083] In some embodiments, the crimping roller may be an electropolished crimping roller. It has been found that electropolished crimping rollers allow the sheet of material 1 to be crimped to a greater depth while causing less damage to multiple regenerated cellulose fibers.
[0084] In some embodiments, the curl amplitude or curl depth can range from about 1 micrometer to about 1000 micrometers. The curl amplitude or curl depth can range from about 1 micrometer to about 800 micrometers. The inventors have found that a curl amplitude or curl depth of less than 800 micrometers can begin to result in a reduction in the obtained voltage drop. In some embodiments, the curl amplitude or curl depth can range from about 1 micrometer to about 600 micrometers. In some embodiments, the curl amplitude or curl depth can range from about 1 micrometer to about 400 micrometers, or from about 1 micrometer to about 300 micrometers, or from about 1 micrometer to about 200 micrometers. In some embodiments, the curl amplitude or curl depth can range from about 1 micrometer to about 180 micrometers, or from about 1 micrometer to about 150 micrometers, or from about 75 micrometers to about 150 micrometers, or from about 50 micrometers to about 100 micrometers.
[0085] Alternatively, or in addition to the features and parameters described above, several other features can be used to characterize the nonwoven sheet of material 1 formed from multiple regenerated cellulose fibers 5. One such feature is basis weight. In some embodiments, the basis weight of the nonwoven sheet of material 1 can be approximately 30 g / m². 2 Approximately 120 g / m 2 Within the range. In some embodiments, the basis weight of the nonwoven sheet of material 1 can be approximately 50 g / m². 2 Approximately 90 g / m 2 Within the range. In some embodiments, the basis weight of the nonwoven sheet of material 1 can be approximately 30 g / m². 2 Approximately 50 g / m 2 or approximately 35 g / m 2 Approximately 45 g / m 2 Within the range. Another such feature is the thickness (caliper thickness) of the nonwoven sheet of Material 1. The thickness of the nonwoven sheet of Material 1 can be in the range of about 0.01 mil (0.00025 mm) to about 4 mil (0.1 mm), or about 0.01 mil (0.00025 mm) to about 1 mil (0.025 mm), or about 0.01 mil (0.00025 mm) to about 0.5 mil (0.127 mm).
[0086] In some embodiments, the nonwoven sheet material 1 formed from multiple regenerated cellulose fibers 5 can be thin and can have reasonably high tensile strength, high resilience, and relatively good flexibility. In some embodiments, it is desirable that the nonwoven sheet material 1 can remain folded without tearing, breaking, or otherwise fracturing during folding, rolling, or pleating processes.
[0087] In some embodiments, material 1 may have a content of 0.1 to 0.3 g / cm³. 3Or 0.14 to 0.22 g / cm³ 3 The elongated material body is in the form of a bulk density elongated material body. In some embodiments, the elongated material body may include multiple fibers extending longitudinally from a first end of the body through the body to a second end of the body. In some embodiments, the elongated material body may include rod-shaped elements having a circumference between about 16 mm and about 25 mm, or between about 18 mm and about 23 mm.
[0088] In some embodiments, material 1 may be provided as a regenerated cellulose tow. Material 1 may have any of the properties or characteristics discussed herein. For example, the regenerated cellulose tow material 1 may be formed from 3 dpf continuous fibers (also referred to as filaments). The regenerated cellulose tow material 1 may have a length of at least 1.5 km. The cross-section of the regenerated cellulose fibers forming the regenerated cellulose tow material 1 may be “Y” shaped. In some embodiments, the regenerated cellulose tow material 1 may be titanium dioxide-free. The regenerated cellulose tow material 1 may also contain a halogen-free spinning oil (spin finish oil).
[0089] In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 12,000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 20,000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 25,000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 30,000. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of at least 35,000. That is, the mass of the regenerated cellulose tow material 1 may be at least 35,000 grams per 9,000 meters of regenerated cellulose tow. In some embodiments, the regenerated cellulose tow material 1 may have a total denier of less than or equal to 80,000. In some embodiments, the regenerated cellulose tow material 1 may be provided in bundles.
[0090] In some embodiments, additives may be applied to the nonwoven sheet of Material 1 before, during, or after its formation. In some embodiments, additives may be added to the pleated nonwoven sheet of Material 1 during component formation to provide desired sensory characteristics and / or improve aerosol chemistry. In some embodiments, the additive may include glyceryl triacetate and / or polyethylene glycol (carbowax), which may be applied to the nonwoven sheet of Material 1 in conventional amounts using known techniques. The additive may be a plasticizer.
[0091] In some embodiments, the additive may be applied to the nonwoven sheet of Material 1 in an amount of about 0.1% to about 20% by weight, based on the total weight of the nonwoven sheet of Material 1. In some embodiments, the additive may be applied to the nonwoven sheet of Material 1 in an amount of about 3% to about 15% by weight, or about 6% to about 12% by weight. For example, the additive may be applied to the nonwoven sheet of Material 1 in an amount of at least about 2%, at least about 4%, at least about 6%, at least about 8%, at least about 10%, at least about 12%, at least about 14%, at least about 16%, or at least about 18% by weight, based on the total weight of the nonwoven sheet (nonwoven web) of Material 1.
[0092] Brief Reference Figure 2 The diagram illustrates a component 2 formed from material 1 of the present invention. As previously described, component 2, formed from a nonwoven sheet of material 1 composed of multiple regenerated cellulose fibers 5, can be a filter component. Therefore, material 1 can be considered a filter material, even if it is not used in the aerosol supply article 3. The aerosol supply article 3, including component 2 formed from material 1, can be manufactured using conventional methods and techniques, where material 1 comprises multiple nonwoven regenerated cellulose fibers 5.
[0093] Brief Reference Figure 3 The diagram illustrates an aerosol supply article 3 comprising a component 2 formed from the material 1 of the present invention. The dimensions of the representative aerosol supply article 3 according to the present invention can vary. In some embodiments, the aerosol supply article 3 may be rod-shaped. The aerosol supply article 3 may have a diameter of about 7.5 mm and a circumference of about 23.5 mm. In some embodiments, the aerosol supply article 3 may have a diameter ranging from about 3.1 mm to about 11.2 mm and a circumference ranging from about 10 mm to about 35 mm. In some embodiments, the aerosol supply article 3 may have a diameter ranging from about 5 mm to about 7.7 mm and a circumference ranging from about 16 mm to about 24 mm.
[0094] In some embodiments, the aerosol supply article 3 may have an overall length ranging from about 60 mm to about 150 mm. In some embodiments, the aerosol supply article 3 may have an overall length ranging from about 80 mm to about 144 mm. However, the length of the aerosol supply article 3 may vary. In some embodiments, for example, the aerosol supply article 3 may have an overall length of about 140 mm or less, about 100 mm or less, about 80 mm or less, about 60 mm or less, or about 40 mm or less. The length of the component 2 formed from material 1 may also vary. When the component 2 formed from material 1 is a filter component, the component 2 may have an overall length ranging from about 15 mm to about 40 mm, typically from about 20 mm to about 35 mm.
[0095] Figure 2 and Figure 3 The component 2 shown, formed of material 1 comprising multiple regenerated cellulose fibers 5, can exhibit desired suction resistance. That is, when gas is drawn from one side to the other, component 2 can exhibit a desired pressure drop along its length. In some embodiments, the pressure drop can be in the range of about 40 mmWG to about 650 mmWG. In some embodiments, the pressure drop can be in the range of about 100 mmWG to about 350 mmWG, about 150 mmWG to about 325 mmWG, or about 200 mmWG to about 300 mmWG, or about 250 mmWG to about 200 mmWG.
[0096] Alternatively, the pressure drop of component 2 can be measured in mm / WG per mm of component 2 in the longitudinal direction. Component 2 can be a standard perimeter component, i.e., about 23 mm to about 25 mm. The pressure drop can range from about 1 mm / WG per mm of component length to about 6.5 mm / WG per mm of component 2 length. In some embodiments, the pressure drop can range from about 2 mm / WG per mm of component 2 length to about 4.5 mm / WG per mm of component 2 length. In some embodiments, the pressure drop can range from about 4.5 mm / WG per mm of component 2 length to about 6.5 mm / WG per mm of component 2 length.
[0097] Furthermore, the component 2 formed from the material 1 comprising multiple regenerated cellulose fibers 5 can exhibit a desired stiffness. In some embodiments, the component 2 can have a stiffness in the range of about 70% to about 99%. In some embodiments, the component 2 of the present invention can exhibit a stiffness of about 75% or higher, about 80% or higher, about 85% or higher, or about 90% or higher. In some embodiments, the stiffness of the component 2 can be in the range of about 85% to about 93%. In some embodiments, the component can include a molded paper or other wrapping material having a basis weight of 60 gsm or higher surrounding the material 1. The component being surrounded by a wrapping material having a basis weight of 60 gsm or higher helps to increase the stiffness of the component.
[0098] The hardness of a component can be measured using the following method. When referring to the hardness of a section herein, the hardness is the hardness determined by the following measurement procedure. Any suitable apparatus can be used for the measurement, such as the Borgwaldt H10 hardness tester.
[0099] Hardness is defined as the ratio between the height h0 of the body and the height h1 of the body under a defined load, expressed as a percentage of h0. Hardness can be expressed as: Hardness = (h1 / h0) × 100 For a single body or a body contained in a multi-section bar, hardness measurements are taken at the longitudinal center point of the body or multi-section bar (as specified).
[0100] A load bar is used to apply a defined load to the specimen. The length of the load bar should be significantly greater than the length of the specimen being tested. Before hardness measurement, the specimen to be measured is conditioned for at least 48 hours according to ISO 3402:2023 and maintained under ambient conditions according to ISO 3402:2023 during the measurement.
[0101] To perform hardness measurements, the sample was placed in a hardness tester H10, a preload of 2 g was applied, and the initial height h0 of the sample under the 2 g preload was recorded after 1 s. The preload was then removed, and a load bar bearing a 150 g load was lowered onto the sample at a rate of 0.6 mm / s. After 5 s, the height h1 of the sample under the 150 g load was measured.
[0102] The hardness of the component was determined as the average hardness of at least 20 components measured according to the scheme.
[0103] For reference only, embodiments of component 2 described above are given below by way of example only. References to component 2 in the following examples are given for a base rod of a given length. The base rod component can be cut into smaller segments and used in or as a filter in the article.
[0104] In one example, component 2 can be formed from a sheet of spunlace nonwoven material. Component 2 can be formed from a sheet of material 1 comprising multiple regenerated cellulose fibers having a dpf of about 3. The regenerated cellulose fibers 5 can be formed from lyocell. Component 2 can be formed from a sheet of material 1 with a weight in the range of 50 to 60 gsm. Component 2 can be formed from a sheet of material with a width in the range of about 70 mm to about 90 mm.
[0105] Component 2, formed from a sheet of material weighing 60 gsm, can have a length ranging from about 75 mm to 85 mm. Component 2 can have a length of about 80 mm. Component 2 can have a perimeter ranging from about 20 mm to about 21 mm. Component 2 can have a weight ranging from about 0.44 g to about 0.58 g. Component 2 can have a weight ranging from about 0.45 g to about 0.51 g. The pressure drop across component 2 can be ranging from about 200 mmWG to about 375 mmWG. The pressure drop across component 2 can be ranging from about 210 mmWG to about 300 mmWG. Component 2 can have a hardness in the range greater than 80%. Component 2 can have a hardness in the range of 83% to 88%. Component 2 can be wrapped with a forming paper weighing 60 gsm.
[0106] Component 2, formed from a sheet of material weighing 50 gsm, can have a length ranging from about 75 mm to 85 mm. Component 2 can have a length of about 80 mm. Component 2 can have a perimeter ranging from about 20 mm to about 21 mm. Component 2 can have a weight ranging from about 0.39 g to about 0.47 g. Component 2 can have a weight ranging from about 0.42 g to about 0.45 g. The pressure drop across component 2 can be ranging from about 150 mmWG to about 240 mmWG. The pressure drop across component 2 can be ranging from about 170 mmWG to about 210 mmWG. Component 2 can have a stiffness in the range greater than 80%. Component 2 can be wrapped with a forming paper weighing 60 gsm.
[0107] The described base rod component can be cut into 8 segments, such that each segment, used in the filter section of the article or as a filter section of the article, is approximately 10 mm long. Therefore, the parameters given above can be divided by 8 to obtain the parameters for a single segment component. The pressure drop across the 10 mm segment 2 can range from approximately 42 mmWG to approximately 55 mmWG.
[0108] In one example, component 2 can be formed from a sheet of spunlace, nonwoven material 1. Component 2 can be formed from a sheet of material 1 containing multiple regenerated cellulose fibers 5 having a dpf in the range of 2.5 to 3. The regenerated cellulose fibers 5 can be formed from lyocell. Component 2 can be formed from a sheet of material 1 containing multiple regenerated cellulose fibers with a 3 dpf. Component 2 can be formed from a sheet of material 1 having a weight of 60 gsm. Component 2 can be formed from a sheet of material 1 having a width of approximately 130 mm.
[0109] Component 2 can have a length in the range of about 105 to 110 mm. Component 2 can have a length of about 108 mm. Component 2 can have a weight in the range of about 0.94 g to about 1.05 g. Component 2 can have a weight in the range of about 0.98 g to about 1.02 g. The circumference of component 2 can be about 24 mm. The pressure drop on component 2 can be in the range of about 250 mmWG to about 310 mmWG. The pressure drop on component 2 can be in the range of about 265 mmWG to about 295 mmWG. Component 2 can have a hardness in the range of about 86% to about 93%. Component 2 can have a hardness in the range of about 88% to about 92%. Component 2 can be cut into 4 segments, each about 27 mm long, which can be used in the filter section of the article or used as a filter section of the article. Therefore, the parameters given above can be divided by 4 to obtain the parameters of a single segment component.
[0110] For reference Figure 4 An exploded view of an exemplary aerosol supply article 10 is shown. The exemplary aerosol supply article 10 is shown as generally cylindrical. However, it should be understood that in other embodiments, the aerosol supply article 10 may be, for example, but not limited to, cubic and optionally generally flat.
[0111] The aerosol supply article 10 includes a generally cylindrical rod 12. The generally cylindrical rod 12 contains aerosol generating material 13. The aerosol generating material 13 can be provided as a charge or roll of aerosol generating material 13. The aerosol generating material 13 can be, for example, but not limited to, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable materials, non-tobacco materials, or amorphous solid materials.
[0112] The rod 12 of the aerosol generating material 13 can be contained within the surrounding encapsulating material 14. The ends of the rod 12 can be open to expose the aerosol generating material 13.
[0113] A distal end 18 is provided at one end of the rod 12 of the aerosol generating material 13. If the aerosol supply article 10 is a combustible aerosol supply article, the distal end 18 may be the end of the aerosol supply article 10 that is ignited during use. If the aerosol supply article 10 is a non-combustible aerosol supply article, the distal end 18 may be the end of the aerosol supply article 10 that is first inserted into the aerosol supply device (not shown).
[0114] A proximal end 19 is provided at the other end of the rod 12 of the aerosol generating material 13. The proximal end 19 of the rod 12 may be the end of the rod 12 that is closer to the consumer's mouth during use. In this embodiment, the filter element 22 is positioned adjacent to the proximal end 19 of the rod 12. The filter element 22 may include a component 2 formed of a material 1 comprising a plurality of nonwoven regenerated cellulose fibers 5 as described herein.
[0115] The filter element 22 may have a generally cylindrical shape. The diameter of the filter element 22 may be substantially equal to the diameter of the rod 12 of the aerosol generating material 13. The filter element 22 may be surrounded by layers of outer forming paper 24 along its outer perimeter or longitudinal perimeter to form the filter element 22. The filter element 22 may be positioned adjacent to one end (i.e., proximal end 19) of the rod 12 of the aerosol generating material 13, such that the filter element 22 and the rod 12 of the aerosol generating material 13 are axially aligned. The rod 12 of the aerosol generating material 13 and the filter element 22 may be axially aligned end-to-end. In some embodiments, the rod 12 of the aerosol generating material 13 and the filter element 22 may be axially aligned end-to-end abutment. The end of the filter element 22 may allow air and aerosol to pass through it.
[0116] The aerosol supply article 10 may further include a tip package 25. The tip package 25 may surround at least a portion of the outer periphery of the outer forming paper 24 of the filter element 22 and at least a portion of the wrapping material 14 of the rod 12 of the aerosol generating material 13. Thus, the tip package 25 may be configured to attach the filter element 22 to the rod 12 of the aerosol generating material 13.
[0117] The tip package 25 can be air impermeable. In some embodiments, the tip package 25 can surround both the entire length of the filter element 22 and the adjacent region of the rod 12 of the aerosol generating material 13. The inner surface of the tip package 25 can be securely attached to the outer surface of the forming paper 24 and the outer surface of the wrapping material 14 of the rod 12 of the aerosol generating material 13. A suitable adhesive can be used to securely attach the tip package 25 to the forming paper 24 and the wrapping material 14. Thus, the filter element 22 and the rod 12 of the aerosol generating material 13 can be connected to each other to form the aerosol supply article 10.
[0118] In some implementations, such as Figure 4 In the illustrated embodiment, the aerosol supply article 10 can be a ventilated or air-diluted smoking article 10. Therefore, the aerosol supply article 10 may include an air dilution device 26. The air dilution device 26 may be, for example, but not limited to, a series of perforations 27. Each perforation 27 may extend through the tip package 25 and the package material 14. The series of perforations 27 may be made using various techniques known in the art, such as laser perforation. Alternatively, offline air dilution techniques may be used, such as, for example, but not limited to, using porous paper forming paper and / or pre-perforated tip packages.
[0119] For the ventilated aerosol supply article 10, the amount or degree of air dilution or ventilation can vary. For example, in some embodiments, the amount of air dilution or ventilation of the aerosol supply article 10 can be greater than about 10%. In some embodiments, the amount of air dilution or ventilation of the aerosol supply article 10 can be greater than about 20%, sometimes greater than 30%, and sometimes greater than 40%. Typically, the upper limit level of air dilution for the aerosol supply article 10 can be less than 80%, and typically less than about 70%. As used herein, the term "air dilution" is the ratio of the volume of air drawn through the air dilution device 26 to the total volume of air and aerosol drawn through and exiting the extreme nozzle of the aerosol supply article 10.
[0120] The filter element 22 may include a nozzle 29. The nozzle 29 may be an end of the aerosol supply article 10. The nozzle 29 may be configured to be placed in the user's mouth for the user to inhale during use.
[0121] It should be understood that the foregoing and the aerosol supply article 10 described herein are not intended to limit the invention. In particular, the materials 1 and components 2 of the present invention can be incorporated into a variety of different aerosol supply articles 10, including but not limited to conventional cigarettes, heated tobacco products, tobacco heating products, electronic cigarette products, aerosol delivery devices, etc., as well as aerosol supply articles that may include features from each of the previously mentioned categories of aerosol supply articles.
[0122] In some embodiments, the aerosol supply articles and / or aerosol supply systems of the present invention can provide a variety of sensations similar to conventional cigarettes without any substantial degree of combustion of any of their components. The sensations provided may include inhalation and exhalation rituals, type of taste or flavor, sensory effects, physical sensations, rituals of use, visual cues (such as those provided by visible aerosols), etc. For example, users of some embodiments of the aerosol supply articles and / or aerosol supply systems of this invention can hold and use the components in a manner similar to that of a smoker using a conventional cigarette. That is, the user can hold the component and inhale at one end of the component to inhale the aerosol produced by the component, and then take or draw a puff at selected time intervals.
[0123] For reference Figure 5 An exemplary aerosol delivery device 30 is illustrated. The exemplary aerosol supply device 30 may include a body 32. The body 32 may be configured to receive aerosol supply articles 3, 10 as described above. Various mechanisms (methods, measures, mechanisms) may be used to connect the aerosol supply articles 3, 10 to the body 32 of the aerosol supply device 30. Such mechanisms may include, but are not limited to, threaded engagement, press-fit engagement, interference fit, sliding fit, magnetic engagement, etc.
[0124] In various embodiments, the aerosol supply device 30 can have a variety of overall shapes, including, but not limited to, overall shapes that can be defined as generally rod-shaped, generally tubular, or generally cylindrical, such as... Figure 5 As shown in the image. That is, Figure 5 The aerosol supply device 30 shown has a generally circular cross-section. However, it should be understood that in alternative embodiments, the body 32 of the aerosol supply device 30 may have different cross-sections, such as, but not limited to, a generally rectangular shape, such as a generally rectangular-cubic shape. In some embodiments, the body 32 of the aerosol supply device 30 or any other component thereof may have other handheld shapes. For example, the aerosol supply device 30 may have a box shape, various PD model shapes, or a keychain shape.
[0125] The alignment of the aerosol supply article 10 within the aerosol supply device 30 can vary. In some embodiments, the substrate portion can be positioned near a heat source to maximize aerosol delivery to the user. Typically, the heat source can be positioned sufficiently close to the rod 12 of the aerosol generating material 13 so that heat from the heat source causes the aerosol generating material 13 and any other substances present (such as one or more flavorants, active ingredients, etc.) to volatilize and form an aerosol for delivery to the user. When the heat source heats the substrate portion, the aerosol is formed, released, or generated in a physical form suitable for inhalation by the consumer.
[0126] The aerosol supply device 30 can be combined with a battery and / or other power source to provide sufficient current to power the aerosol delivery device for various functions, such as powering the heat source, the control system, indicators, etc., as described in more detail below. In some embodiments, the power source can be able to deliver sufficient power to quickly activate the heat source to provide power for aerosol formation and to power the aerosol supply device 30 for a sustained desired duration. In some embodiments, the power source can be designed to be easily fitted within the body 32 of the aerosol supply device 30, allowing the aerosol supply device 30 to be easily operated. The power source can be a replaceable or rechargeable battery, a solid-state battery, a thin-film solid-state battery, or a rechargeable supercapacitor, etc., and can be combined with any suitable type of recharging technology.
[0127] The aerosol supply article 10 may include a heating element 16. The heating element 16 may typically be a segment of the aerosol supply article 20, comprising a rod 12 containing aerosol generating material 13, or at least a portion thereof. The heating element 16 may be configured to be inserted into the body 32 of the aerosol supply device 30.
[0128] The material 1 of the present invention has been tested to evaluate the various properties of the component 2 formed from the material 1 comprising multiple nonwoven regenerated cellulose fibers 5.
[0129] In one aspect of the invention, material 1 (such as...) is provided. Figure 1 As shown), material 1 is used in the aerosol supply of product 3 (such as... Figure 3 As shown) as a component (such as Figure 2 (As shown) for use. Material 1 comprises multiple fibers 5 containing regenerated cellulose and an adhesive. The material has a content of approximately 0.1 g / cm³. 3 To approximately 0.4 g / cm 3 The packing density within the range.
[0130] The multiple fibers 5 can be discontinuous. The multiple fibers can have a fiber length ranging from about 10 mm to about 60 mm. The multiple fibers can be wet-laid. In some embodiments, the multiple fibers can be air-laid. An adhesive 6 can be configured to bond the multiple fibers 5 together. The multiple regenerated cellulose fibers 5 have a density of about 0.12 g / cm³. 3 To approximately 0.3 g / cm 3 The bulk density of the multiple regenerated cellulose fibers is approximately 0.15 g / cm³. 3 To approximately 0.25 g / cm 3 The bulk density. Multiple regenerated cellulose fibers 5 can have a monofilament denier between about 1 dpf and about 10 dpf.
[0131] The material 1 and the component 2 formed from the material 1 of this aspect of the invention are similar to the component 2 of the previously described aspect, and therefore their detailed description will be omitted here. Furthermore, similar features and components will retain their terminology and reference numerals. It should also be understood that the features and components of the aforementioned material 1 and component 2 can be incorporated into the material 1 and component 2 of this aspect, and vice versa.
[0132] The nonwoven sheet of Material 1 can be produced by conventional forming methods such as wet web forming. It is known in industry that the term wet web forming has a broad meaning and can be combined with various equipment, methods, and means. The use of the term wet web forming is not restrictive and does not limit the single process of manufacturing.
[0133] Multiple fibers 5 can be wet-laid. As used herein, the term "wet-laid" generally refers to a method of producing a fibrous sheet of material 1 by means similar to papermaking, wherein the fibers are suspended in an aqueous medium, and the sheet is formed by filtering the suspension on a conveyor belt or perforated roller. Adhesives can be introduced to achieve the desired final properties in the wet-laid nonwoven sheet of material 1.
[0134] In some embodiments, the adhesive 6 may be, for example, but not limited to, polyvinyl alcohol (PVOH), pectin, starch, microfibrillated cellulose (MFC), polysaccharides, shellac, and combinations thereof. In some embodiments, the adhesive 6 may be an alternative natural polymer not mentioned in the foregoing list.
[0135] The bulk density of the multiple fibers 5 of regenerated cellulose can be calculated without considering any other characteristics of material 1, component 2 or article 3 (when material 1 is formed into component 2 or article 3).
[0136] As described above, the multiple fibers 5 of the regenerated cellulose material can have a density of approximately 0.10 g / cm³. 3To approximately 0.40 g / cm 3 The bulk density is within a certain range. In some embodiments, the multiple fibers 5 of the regenerated cellulose material may have a bulk density of about 0.12 g / cm³. 3 To approximately 0.30 g / cm 3 The bulk density is within a certain range. In some embodiments, the multiple fibers 5 of the regenerated cellulose material may have a bulk density of about 0.15 g / cm³. 3 To approximately 0.25 g / cm 3 The packing density within the range.
[0137] The bulk density of material 1 can be customized to provide a satisfactory pressure drop for the user when the material is formed for use as article 3 or for part 2 used in article 3. Furthermore, reducing the bulk density of material 1 improves cost efficiency and material usage, and thus reduces the manufacturing impact on the environment.
[0138] It should be understood that although the multiple fibers 5 have been previously described as containing regenerated cellulose, it is possible that the multiple fibers 5 forming the material 1 are composed of or are substantially composed of regenerated cellulose.
[0139] In some embodiments, material 1 may include one or more coatings, fillers, additives, and / or other components. In some embodiments, material 1 may include multiple fibers and one or more coatings, fillers, additives, surface treatment agents, or other materials applied to or incorporated therein. One such coating may be, for example, a plasticizer, such as glyceryl triacetate, which is typically applied to conventional filter materials in conventional amounts using known techniques.
[0140] In some embodiments, other materials applied to or incorporated into material 1 may be applied in liquid form. These other materials may include, but are not limited to, substances such as, but not limited to, glyceryl triacetate, polyethylene glycol, flavoring compounds, propylene glycol, triethyl citrate, or any other suitable substance. Furthermore, each of the coatings, fillers, or other components applied to material 1 may contribute some functionality or property to the component 2 formed from material 1. For example, each of the coatings, fillers, or other components may contribute to filtering aerosols, improving aerosol flavor, water dispersibility, biodegradability, and / or compostability.
[0141] In some embodiments, adhesive 6 may be applied to the nonwoven sheet of material 1 before, during, or after its formation. In some embodiments, adhesive may be added to the pleated nonwoven sheet of material 1 during part formation to provide desired sensory properties and / or improve aerosol chemistry. The adhesive (which may contain pectin in some embodiments) may be applied to the nonwoven sheet of material 1 in conventional amounts using known techniques.
[0142] In some embodiments, the adhesive may be applied to the nonwoven sheet of Material 1 in an amount from about 0.1% to about 30% by weight, based on the total weight of the nonwoven sheet of Material 1. In some embodiments, the adhesive may be applied to the nonwoven sheet of Material 1 in an amount from about 5% to about 30% by weight. The adhesive may be, for example, pectin or starch. The amount of adhesive may be determined based on the dpf of the fiber and the weight of the sheet of Material 1. It has been determined that too much adhesive makes the material too stiff and difficult to operate on manufacturing equipment.
[0143] In some embodiments, the adhesive may be applied to the nonwoven sheet of material 1 in an amount of about 3% to about 15% by weight, or about 6% to about 12% by weight. For example, based on the total weight of the nonwoven sheet of material 1, the adhesive may be applied to the nonwoven sheet of material 1 in an amount of at least about 2%, at least about 4%, at least about 6%, at least about 8%, at least about 10%, at least about 12%, at least about 14%, at least about 16%, or at least about 18% by weight.
[0144] In some embodiments, the adhesive comprises 2% to 20% by weight of component 2 used for aerosol supply article 2. In some embodiments, the adhesive may be applied to the nonwoven sheet of material 1 in an amount of 4% by weight. Advantageously, it has been found that the adhesive is applied to the nonwoven web of material 1 in an amount of about 4% by weight. The adhesive may contain pectin. The adhesive may contain about 4% pectin by weight of component 52.
[0145] In one aspect of the invention, a component 2 for an aerosol supply article 3 is provided. The component 2 includes an aerosol generating material 1 comprising a plurality of fibers 5 formed of regenerated cellulose. The aerosol generating material 1 of the component 2 further includes an aerosol forming agent material in the range of about 5% to about 60% by weight of the aerosol generating material 1.
[0146] Component 2 of this aspect of the invention is similar to component 2 of the previously described aspect, and therefore its detailed description will be omitted herein. Furthermore, similar features and components will retain their respective terminology and reference numerals. It should also be understood that the features and components of the aforementioned component 2 can be incorporated into component 2 of this aspect, and vice versa.
[0147] Aerosol forming agent materials may include one or more components capable of forming aerosols. In some embodiments, the aerosol forming agent material may include one or more of the following: glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butanediol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, glyceryl triacetate, a mixture of glyceryl diacetate (diacetin), benzyl benzoate, benzyl phenylacetate, glyceryl tribocylate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. In some embodiments, the aerosol forming agent material comprises one or more polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate; and / or aliphatic esters of monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Not wishing to be bound by theory, it is believed that including glyceryl triacetate in this component facilitates better transfer of nicotine from component 2 to the user during use.
[0148] Aerosol-forming agents may contain acids. Without being bound by theory, it is believed that the presence of acids reduces the perceived irritation of the generated aerosols.
[0149] Material 1 may contain an aerosol forming agent. In some embodiments, the aerosol forming agent of Material 1 may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Glycerol may be present in an amount of 10 to 20% by weight of Material 1, for example, in an amount of 13 to 16% by weight of the composition, or in an amount of about 14% or 15% by weight of the composition. If propylene glycol is present, it may be present in an amount of 0.1 to 0.3% by weight of the composition.
[0150] Aerosol forming material may be included in any component 2 formed of material 1 comprising multiple regenerated cellulose fibers 5, such as any filter component and / or any plug component, and or may be configured to be heated in any aerosol generating section (if present). In either case, the total amount of aerosol forming material in material 1 may be as defined herein.
[0151] In one example, the aerosol forming agent material may comprise an amorphous solid material containing 40% menthol, 16% glycerol, 20% binder (alginate / pectin mixture), and 20% fiber (wood pulp).
[0152] In some embodiments, the amorphous solids include: 1-60 wt% of a gelling agent, 0.1-50 wt% of an aerosol forming agent, and 0.1-80 wt% of a flavoring agent; wherein these weights are calculated based on dry weight.
[0153] In some other embodiments, the amorphous solids include: 1-50 wt% of a gelling agent, 0.1-50 wt% of an aerosol forming agent, and 30-60 wt% of a flavoring agent; wherein these weights are calculated based on dry weight.
[0154] In some embodiments, the aerosol forming agent material can form 60% of the material by weight. For example, a component constructed to be heated from lyocell fibers may contain up to about 60% by weight propylene glycol, or vegetable glycerin, or a combination of propylene glycol and vegetable glycerin.
[0155] In some embodiments, the component may contain nicotine. The component may contain up to 5% nicotine, wherein the nicotine is neutralized using benzoic acid at a 1:1 ratio. In some embodiments, a combination of levulinic acid and benzoic acid may be used.
[0156] In some further embodiments, the amorphous solids comprise: an aerosol forming agent material, in an amount of about 40 to 80 wt% of the amorphous solids; a gelling agent and optional filler (i.e., in some instances, the filler is present in the amorphous solids, and in other instances, the filler is not present in the amorphous solids), wherein the amount of the gelling agent and filler together is about 10 to 60 wt% of the amorphous solids (i.e., the gelling agent and filler together account for about 10 to 60 wt% of the amorphous solids); and optionally, an active substance and / or a flavoring agent, in an amount of up to about 20 wt% of the amorphous solids (i.e., the amorphous solids contain ≤ 20 wt% of the active substance).
[0157] Amorphous solid materials can be formed from dried gels. It has been found that using the component ratios discussed above means that flavoring compounds are stabilized within the gel matrix due to gel solidification, resulting in higher flavoring loadings than in non-gel compositions. Flavorings (e.g., menthol) are stable at high concentrations, and the product has a good shelf life.
[0158] In some cases, the amorphous solid may have a thickness of about 0.015 mm to about 1.5 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm, or 0.15 mm to about 0.5 mm, 0.3 mm, or 1 mm. In some embodiments, a material with a thickness of 0.2 mm is particularly suitable. The amorphous solid may comprise more than one layer, and the thickness described herein refers to the aggregate thickness of those layers.
[0159] If the amorphous solid is too thick, heating efficiency is compromised. This negatively impacts power consumption during use. Conversely, if the amorphous solid is too thin, it becomes difficult to manufacture and handle; very thin materials are more difficult to cast and may be brittle, thus impairing aerosol formation during use.
[0160] Suitablely, the amorphous solids may contain from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, or 35 wt% to about 60 wt%, 55 wt%, 50 wt%, 45 wt%, 40 wt%, or 35 wt% of a gelling agent (all based on dry weight). For example, the amorphous solids may contain 1-60 wt%, 5-60 wt%, 20-60 wt%, 25-55 wt%, 30-50 wt%, 35-45 wt%, 5-45 wt%, 10-40 wt%, or 20-35 wt% of a gelling agent.
[0161] Amorphous solids may contain gelling agents. Gelling agents may include one or more compounds selected from cellulose gelling agents, non-cellulose gelling agents, guar gum, gum arabic, and mixtures thereof.
[0162] In some embodiments, the gelling agent comprises a hydrocolloid. In some embodiments, the gelling agent comprises one or more compounds selected from the group consisting of alginate, pectin, starch (and derivatives), cellulose (and derivatives), gum, silica or silicone compounds, clay, polyvinyl alcohol, and combinations thereof. For example, in some embodiments, the gelling agent comprises one or more of alginate, pectin, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, pullulan, xanthan gum, guar gum, carrageenan, agarose, gum arabic, fumed silica, polydimethylsiloxane (PDMS), sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the gelling agent comprises alginate and / or pectin and may be combined with a hardening agent (such as a calcium source) during the formation of the amorphous solid. In some cases, the amorphous solid may comprise calcium-crosslinked alginate and / or calcium-crosslinked pectin.
[0163] Cellulose gelling agents can be selected from the group consisting of: hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose (CMC), hydroxypropyl methyl cellulose (HPMC), methyl cellulose, ethyl cellulose, cellulose acetate butyrate (CAB), cellulose acetate propionate (CAP), and combinations thereof.
[0164] In some embodiments, the gelling agent comprises one or more of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose (HPMC), carboxymethyl cellulose, guar gum, or gum arabic.
[0165] In some embodiments, the gelling agent comprises / or one or more non-cellulose gelling agents, including but not limited to agar, xanthan gum, gum arabic, guar gum, locust bean gum, pectin, carrageenan, starch, alginate, and combinations thereof. In a preferred embodiment, the non-cellulose gelling agent is alginate or agar.
[0166] In some embodiments, the amorphous solid comprises alginate and pectin, and the ratio of alginate to pectin ranges from 1:1 to 10:1. The alginate to pectin ratio is typically... The ratio is 1:1, meaning that alginate exists in a greater amount than pectin. In examples, the ratio of alginate to pectin is about 2:1 to 8:1, or about 3:1 to 6:1, or about 4:1.
[0167] In some embodiments, the amorphous solid contains filler in an amount ranging from 1 to 30 wt%, such as 5 to 25 wt%, or 10 to 20 wt% of the amorphous solid. In examples, the amorphous solid contains filler in an amount greater than 1 wt%, 5 wt%, or 8 wt% of the amorphous solid. In examples, the amorphous solid contains filler in an amount less than 40 wt%, 30 wt%, 20 wt%, 15 wt%, 12 wt%, 10 wt%, 5 wt%, or 1 wt% of the amorphous solid. In other examples, the amorphous solid does not contain filler.
[0168] In some examples, the amorphous solids comprise gelling agents and fillers in amounts totaling approximately 10 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt%, or approximately 60 wt%. In some examples, the total amount of gelling agents and fillers is no more than 85 wt%, 80 wt%, 75 wt%, 70 wt%, 65 wt%, or no more than 60 wt% of the amorphous solids. In some examples, the amorphous solids comprise gelling agents and fillers in amounts totaling approximately 20 to 60 wt%, 25 to 55 wt%, 30 to 50 wt%, or 35 to 45 wt% of the amorphous solids.
[0169] The packing material (if present) may comprise one or more inorganic packing materials, such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and suitable inorganic adsorbents, such as molecular sieves. The packing material may also comprise one or more organic packing materials, such as wood pulp, cellulose, and cellulose derivatives. In certain cases, the amorphous solid may not contain calcium carbonate, such as chalk.
[0170] In some instances where fillers are included, the fillers can be fibrous. For example, the filler can be a fibrous organic filler material, such as wood pulp, hemp fiber, cellulose, or cellulose derivatives. Without being bound by theory, it is believed that including fibrous fillers in amorphous solids can increase the tensile strength of the material.
[0171] In some instances, the amorphous solid does not contain tobacco fibers. In certain instances, the amorphous solid does not contain fibrous materials.
[0172] In some embodiments, the amorphous solids may include from about 0.1 wt%, 0.5 wt%, 1 wt%, 3 wt%, 5 wt%, 7 wt%, or 10 wt% to about 80 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, 30 wt%, or 25 wt% of aerosol forming agent material (all based on dry weight). For example, the amorphous solids may contain 0.5-40 wt%, 3-35 wt%, or 10-25 wt% of aerosol forming agent material.
[0173] Aerosol forming agents can be used as plasticizers. If the plasticizer content is too high, the amorphous solids may absorb water, resulting in a poor absorbing experience during use. If the plasticizer content is too low, the amorphous solids may be brittle and prone to breakage.
[0174] In some embodiments, the aerosol forming agent contained in the amorphous solid comprises one or more polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate; and / or aliphatic esters of monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate.
[0175] In some cases, aerosol-forming materials contain one or more compounds selected from the following: erythritol, propylene glycol, glycerol, triacetin, sorbitol, and xylitol. The inclusion of triacetin can reduce the perceived irritation of the generated aerosol. In some cases, aerosol-forming materials contain glycerol, are substantially composed of glycerol, or are composed of glycerol.
[0176] Amorphous solid materials may contain flame-retardant salts. The flame-retardant salts used herein are compounds composed of ionic combinations of cations and anions. The salts used herein are those whose anions and / or cations are effectively flame-retardant. In some embodiments, the salts are inorganic salts.
[0177] In some embodiments, the salt is a halide salt, i.e., having a halide anion. In some embodiments, the salt is a chloride salt or a bromide salt. The presence of high concentrations of chloride or bromide has been shown to have flame-retardant properties.
[0178] In some embodiments, the salt may be an alkali metal salt, i.e., having an alkali metal cation. In some embodiments, the salt has an alkaline earth metal cation. In some embodiments, the salt has a zinc cation or an iron cation, such as an iron or ferrous cation. In some embodiments, the salt has an ammonium cation or a phosphonium cation.
[0179] In some embodiments, the salt can be an alkali metal halide, such as sodium chloride or potassium chloride. The salt can be an alkaline earth metal halide, such as magnesium chloride or calcium chloride. The salt can be another metal halide, such as zinc chloride or sodium bromide.
[0180] In some embodiments, the salt has a carboxylate anion. For example, the salt can be an alkali metal carboxylate, such as potassium citrate, potassium succinate, potassium malate, potassium acetate, potassium tartrate, potassium oxalate, sodium citrate, sodium succinate, sodium acetate, or sodium malate.
[0181] In other embodiments, the salt has anion selected from the following: borate, carbonate, phosphate, sulfate, or aminosulfonate.
[0182] Factors influencing the choice of salt include, for example, melting point, which is preferably at least 450°C. In some embodiments, the salt is soluble in water. In some embodiments, the salt is chosen to provide a desired pH to the material to which it is added. In some embodiments, the salt does not significantly alter the pH of the material.
[0183] In some embodiments, the selected flame-retardant salt may have one or more advantageous properties, such as: inertness, solubility in the precursor liquid, solubility or dispersibility in the amorphous solid material or the precursor material of the amorphous solid material, density, or other properties known in the art.
[0184] In some embodiments, the flame retardant salt comprises, is substantially composed of, or is composed of sodium chloride, potassium chloride, sodium bromide, and / or potassium bromide.
[0185] Depending on the desired flame retardant or other physical properties, the salt component can be in the form of a free alkali, a salt, a complex, or a solvate. Flame retardant salts can have any density and any crystal structure.
[0186] In some embodiments, the flame-retardant salt is incorporated into or added to an amorphous solid material dissolved in a solvent or liquid carrier. In some embodiments, the flame-retardant salt is suspended in a liquid carrier. Depending on the suitable application, the solvent or liquid carrier may be an aqueous or organic liquid and may be polar or nonpolar.
[0187] Liquid carriers or 36 precursor solvents can be advantageously selected to be easily removed during the manufacturing process of flame retardant materials so as to leave the flame retardant salt in or on the amorphous solid material.
[0188] In some embodiments, the liquid carrier is a mixture of liquids, including aqueous liquids (water) and non-aqueous liquids (e.g., glycerol). When water is removed after salt application, glycerol will remain in the amorphous solid material, where it provides flexibility and facilitates aerosol formation upon heating.
[0189] In some embodiments, the described component 2 can be used in aerosol supply articles, and in some cases, in non-flammable aerosol supply articles 3 (typically such as...). Figure 3 (As shown) is used. The aerosol supply article 3 can be used as an aerosol supply system or as part of it. The aerosol supply article 3 includes an aerosol generating material 13 and components. Component 2 includes multiple fibers 5 formed from regenerated cellulose and an aerosol forming agent material in the range of about 5% to about 60%.
[0190] In some embodiments, component 2 as described above may further comprise an active substance. The active substance may be a substance to be delivered to a user. As used herein, an active substance may be a physiologically active substance, which is a material intended to achieve or enhance a physiological response, as described in more detail below. The active substance may be, for example, selected from nutritional supplements, nootropics, and psychoactive substances. The active substance may be naturally occurring or synthetically obtained. The active substance may include, for example, nicotine, caffeine, taurine, caffeine, vitamins (such as B6 or B12 or C), melatonin, or components, derivatives, or combinations thereof. The active substance may include one or more components, derivatives, or extracts of tobacco or other botanical material. In some embodiments, the active substance is a legally permitted recreational drug. In some embodiments, the active substance includes nicotine. In some embodiments, the active substance includes caffeine, melatonin, or vitamin B12.
[0191] In some embodiments, the active substance may include or be derived from one or more plant materials or their components, derivatives, or extracts. The term "plant material" includes any material derived from a plant, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, shells, pods, etc. Alternatively, the material may include an active compound naturally present in the plant material, obtained through synthesis. The material may be in the form of a liquid, gas, solid, powder, dust, pulverized particles, fine particles, pellets, fragments, strips, sheets, etc. Examples of such plant materials can be found in the list disclosed below.
[0192] In some implementations, the substance to be delivered may include a flavoring agent. Examples of such flavoring agents can be found in the list outlined below.
[0193] It should be understood that in some embodiments, the active substances or materials in material 1 can form aerosols when heated during use, and thus can be considered as aerosol forming agent materials.
[0194] For reference Figure 6 A perspective sectional view of the component. In one aspect of the invention, a component 2 is provided for use in an aerosol supply article 3, which is used in an aerosol supply device 30. The component 2 for the aerosol supply article 3 can be used in a non-flammable aerosol supply device 30. The component 2 includes a material 1 comprising a plurality of fibers 5 containing regenerated cellulose. The component also includes an aerosol modifier release component 40. The aerosol modifier release component 40 may be surrounded by the plurality of regenerated cellulose fibers 5.
[0195] Figure 6 The component 2 of this aspect of the invention shown is similar to Figures 1 to 5 The components shown are from the previously described aspect of component 2, and therefore their detailed description will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. It should also be understood that the features and components of the aforementioned component 2 can be incorporated into component 2 of this aspect, and vice versa.
[0196] The aerosol modifier release component 40 may be disposed within the body of the material 1 within the component 2. In this embodiment, the aerosol modifier release component 40 may be in the form of an additive release component in the form of a capsule 41. In embodiments where the capsule 41 is provided, the forming paper 24 may include oil-resistant forming paper. However, in other embodiments, the aerosol modifier release component 40 may be provided in other forms, such as material injected into the body of the material 1 of the component 2 or disposed on a line (e.g., a line carrying a flavoring agent or other aerosol modifier), which may also be arranged within the body of the material 1 of the component 2.
[0197] The aerosol modifier release component 40 can be a capsule 41. The capsule 41 can be a burstable capsule. For example, the burstable capsule 41 can have a solid, fragile shell 42 surrounding the liquid payload 43. Figure 6 In the illustrated embodiment, component 2 includes a single capsule 41. However, in some embodiments, component 2 may include multiple capsules 41. For example, component 2 may include two, three, or more capsules 41.
[0198] Capsule 41 can be completely embedded within the body of material 1 of component 2. In other words, capsule 41 can be completely surrounded by material 1 forming component 2. The body of material 1 of component 2 can be sufficiently uniform so that capsule 41 is not visible from the ends of component 2. In embodiments including multiple capsules 41, the length of component 2 can be increased, and therefore the length of the body of material 1 can be increased to accommodate the number of included capsules 41.
[0199] In embodiments using multiple capsules 41, the individual capsules 41 may be identical to each other, or they may differ from each other in size and / or capsule payload 42.
[0200] Capsule 41 may have a core-shell structure. In other words, capsule 41 may include a shell 42 encapsulating a liquid payload 43. The liquid payload 43 may be a liquid reagent, such as a flavoring agent or other reagent, which may be any of the flavoring agents or aerosol modifiers described herein. The shell 42 of capsule 41 may be broken (ruptured) by the user to release the flavoring agent or other reagent into the material 1 of the body forming part 2.
[0201] In this embodiment, capsule 41 may be generally spherical. The spherical capsule 41 may have a diameter of about 3 mm. In alternative embodiments, capsules 41 of different shapes and sizes may be used. For example, in some embodiments, the aerosol modifier release component 40 may be substantially cylindrical. In some embodiments, capsule 41 may have a diameter of less than 4 mm, or less than 3.5 mm, or less than 3.25 mm. In alternative embodiments, capsule 41 may have a diameter greater than about 3.25 mm, for example, greater than 3.5 mm or greater than 4 mm. The total weight of capsule 41 may range from about 10 mg to about 50 mg.
[0202] In this embodiment, capsule 41 may be located at the longitudinal center position within the material 1 of component 2. However, in some embodiments, capsule 41 may be located at a non-longitudinal center position within the material 1 of component 2. That is, the capsule 41 may be located closer to the upstream end of component 2 than to the downstream end of component 2.
[0203] For example, in a 12 mm long component, capsule 41 can be positioned such that its center is 5 mm from the upstream end of component 2 and 7 mm from the downstream end of component 2. This positioning of capsule 41 helps ensure that capsule 41 is not visible from the downstream end of the aerosol supply article 3.
[0204] In some embodiments, the shell 42 is formed of a barrier material. This barrier material may be brittle. The capsule 41 can be crushed or otherwise fractured by the user to release the encapsulated aerosol modifier payload. Typically, the capsule 41 fractures immediately before use, but the user can choose when to release the aerosol modifier. The term "fractureable capsule" refers to capsule 41, in which the shell 42 can be fractured by pressure to release the liquid payload 43 within the core. More specifically, the shell 42 can fracture under pressure applied by the user's fingers when the user wishes to release the liquid payload 43 within the core of capsule 41.
[0205] In some embodiments, the barrier material forming the shell 42 may be heat-resistant. That is, in some embodiments, the shell 42 will not break, melt, or otherwise fail at the temperature reached at the location of the capsule 41 during operation of the aerosol supply article 3.
[0206] In an alternative embodiment, capsule 41 may be a biodegradable capsule. That is, capsule 41 may be configured to degrade to release the aerosol modifier when a temperature exceeding a predetermined threshold is applied. In some embodiments, capsule 41 may be configured to degrade to release the aerosol modifier when a moisture content exceeding a predetermined threshold is applied.
[0207] The component 2, which includes the aerosol modifier release component 40, can be formed by: extruding multiple fibers 5 containing regenerated cellulose, hydroentangling the fibers 5 to form a nonwoven sheet of material 1, receiving the nonwoven sheet of material 1 and inserting the aerosol modifier release component 40 onto the nonwoven sheet of material 1, and processing the nonwoven sheet of material 1 such that the aerosol modifier release component 40 is surrounded by the nonwoven sheet of material 1.
[0208] In some embodiments, the described component 2 can be used in the non-flammable aerosol supply article 3, such as Figure 3 As generally shown. The aerosol supply article 3 can be used as part of an aerosol supply system. The aerosol supply article 3 includes an aerosol generating material 13. The aerosol generating material 13 includes at least one aerosol forming material. The aerosol supply article 3 also includes a component 2, which includes an aerosol modifier release component 40, as described above.
[0209] In some embodiments, the aerosol supply article 3 may include a plurality of components 2. Each component 2 provided may include one or more aerosol-modified release components 40. Alternatively, only one or some of the plurality of components 2 may include one or more aerosol-modified release components 40.
[0210] For reference Figure 7 A schematic perspective view of material 71 is shown. In one aspect of the invention, material 71 is provided for use as a component 2 in an aerosol supply article 3. Material 71 comprises a plurality of substrate sheets 72, 73 stacked on top of each other. At least one of the plurality of substrate sheets 72, 73 is formed of any one of: a plurality of regenerated cellulose fibers; or paper.
[0211] Figure 6 The material 71 of this aspect of the invention shown is similar to Figures 1 to 5 The material 1 shown herein is a component 2 of the previously described aspect, and therefore its detailed description will be omitted herein. Furthermore, similar features and components will retain their terminology and reference numerals. It should also be understood that the features and components of the aforementioned material 1 can be incorporated into material 71 of this aspect, and vice versa.
[0212] In some embodiments, the material 71 of the present invention may be a nonwoven sheet comprising a plurality of regenerated cellulose fibers 5, as previously described. That is, each of the plurality of substrate sheets 72, 73 may be formed from a nonwoven sheet comprising a plurality of regenerated cellulose fibers 1. The regenerated cellulose fibers may be viscose fiber or lyocell or a combination of both. In other embodiments, the material 71 of the present invention may be a paper material. That is, each of the plurality of substrate sheets 72, 73 may be formed from a sheet comprising paper material 1.
[0213] However, it should be understood that in some embodiments, it is envisioned that at least one of the plurality of substrate sheets 72 may be formed from a nonwoven sheet of material 1 containing a plurality of regenerated cellulose fibers, and at least one of the plurality of substrate sheets 73 may be formed from a sheet of material containing paper.
[0214] It should also be understood that in some embodiments, at least one of the plurality of substrate sheets 72, 73 may be formed of non-regenerated cellulose materials and non-paper materials. For example, at least one of the plurality of substrate sheets 72, 73 may be formed of aerosol-generating materials, such as, but not limited to, tobacco materials, recycled plant materials, amorphous solid materials, or charcoal paper. In some embodiments, the substrate sheet 73 of non-regenerated cellulose materials and non-paper materials may be located between the outer substrate sheets 72, 74 of the regenerated cellulose materials and / or paper materials 72, 74.
[0215] In some embodiments, the total weight of the plurality of substrate sheets 72, 73 can be in the range of about 40 gsm to about 90 gsm. In some embodiments, the plurality of substrate sheets 72, 73 can have the same weight. For example, material 71 may include three substrate sheets 72, 73, 74, and each of the substrate sheets 72, 73, 74 may have a weight of about 15 gsm.
[0216] In some embodiments, at least one of the plurality of substrate sheets 72, 73, 74 may have a different weight than at least another of the plurality of substrate sheets 72, 73, 74. For example, material 71 may include three substrate sheets 72, 73, 74. Substrate sheets 72 and 74 may both have a weight of about 20 gsm, and another substrate sheet 73 may have a weight of about 10 gsm.
[0217] In some embodiments, at least one of the plurality of substrate sheets 73 has a different weight than the other substrate sheets 72, 74, with the lower-weight substrate sheet located between the higher-weight substrate sheets 72, 74. This arrangement produces a material 71 with better operability by a manufacturing device (not shown) because the device only contacts the structurally stronger, higher-weight substrate sheet.
[0218] In some embodiments, one or more, but less than all, of the plurality of material sheets may contain an aerosol-modifying additive. The aerosol-modifying additive may be, for example, an aerosol-forming material or an active substance, or both. That is, in some embodiments, at least one of the plurality of substrate sheets may include an aerosol-modifying additive. In some embodiments, at least one of the plurality of substrate sheets may not contain an aerosol-modifying additive.
[0219] In some embodiments, at least one or more portions of the sheet material may be treated with aerosol-modifying additives (such as flavoring agents), adsorbents (such as charcoal particles), aerosol-forming agent materials as defined herein, and / or active substances as defined herein (such as nicotine). Advantageously, treating one or more, but less than all, portions may enable the aerosol modifier to be positioned at a specific location within the material body, or help limit its migration within the material body. That is, in some embodiments.
[0220] For reference Figure 8 The product 3 for aerosol supply is shown. Figure 3Component 75 (shown). Component 2 is formed from the previously described material 71. Component 2 includes a plurality of substrate sheets 72, 73, 74 aggregated into a generally prismatic shape. This shape may be generally cylindrical. At least one of the plurality of substrate sheets 72, 73, 74 is formed of regenerated cellulose or paper.
[0221] The filtration efficiency of component 75 can be improved by forming component 75 from multiple substrate sheets 72, 73, and 74 made of regenerated cellulose or paper. That is, by using multiple substrate sheets 72, 73, and 74 with lower weight (gsm), material 71 can be aggregated more uniformly. This is because the lower strength of each substrate sheet 72, 73, and 74 makes them more flexible. Component 75 may include multiple channels 76 formed by the gaps between the folds of the substrate sheets 72, 73, and 74. Therefore, the variability of the channel 76 dimensions of component 75 (i.e., the gaps between the folds of material 71) is relatively small.
[0222] This reduction in the variability of channel 76 decreases the likelihood that the path through component 75 has significantly lower resistance than other paths. Therefore, aerosols are less likely to flow primarily along the lower-resistance path. This means the flow through the component is more uniform and there is a larger flow volume in each channel 76. With more uniform aerosol flow, this means each channel 76 has a more uniform amount of aerosol flowing through it. Therefore, filtration efficiency is improved because areas of component 75 that typically do not receive larger flow rates when using a single, heavier sheet can now filter a larger volume of aerosols.
[0223] This aspect of the invention also provides a method of forming component 75. The method includes providing a material 71 comprising a plurality of substrate sheets 72, 73, 74 stacked on top of each other, and assembling the material into a prismatic component 75. At least one of the plurality of substrate sheets 72, 73, 74 is formed of regenerated cellulose or paper.
[0224] For reference Figure 9 A schematic cross-sectional view of component 52 is shown. In one aspect of the invention, component 52 is provided for an aerosol supply article. Component 52 can be used in a non-flammable aerosol supply article 3 for use in a non-flammable aerosol supply device 30. Component 52 includes a material body 54 having an annular cross-section. The annular material body 54 includes multiple fibers 5 formed of regenerated cellulose.
[0225] An annular material body 54 may form the outer portion 54 of component 52. The annular material body 54 may extend longitudinally through component 52. Component 52 may also include a longitudinally extending core 53. The outer portion 54 may extend longitudinally and surround the core 53. The outer portion 54 is formed of material 1, which comprises multiple fibers 5 formed of regenerated cellulose.
[0226] Figure 9 The component 52 of this aspect of the invention shown is similar to Figures 1 to 7 The components shown are from the previously described aspect of component 2, and therefore their detailed description will be omitted here. Furthermore, similar features and components will retain their terminology and reference numerals. It should also be understood that features and components of the previously described component 2 can be incorporated into component 52 of this aspect, and vice versa.
[0227] The core portion 53 of component 52 may extend longitudinally along the length of the longitudinal axis X of component 52. In this embodiment, the core portion 53 may extend the length of component 52. The outer portion 54 may extend longitudinally along the length of the longitudinal axis X of component 52. In this embodiment, the outer portion 54 may extend the length of component 52. In some embodiments, component 2 may have a length in the range of about 4 mm to about 12 mm. In some embodiments, component 2 may have a length in the range of about 6 mm to about 8 mm.
[0228] The outer portion 54 may include a first end surface 56 and an opposing second end surface 57. In this embodiment, the first end surface 56 may extend in the same plane as the proximal end of the component 52, and the second end surface 57 may extend in the same plane as the distal end of the component 52. In this embodiment, the first and second end surfaces 56 and 57 may be congruent.
[0229] The outer portion 54 may surround the core 53. Therefore, the core 53 may be located radially inside the outer portion 54. The outer portion 54 is formed of a material 1 comprising multiple regenerated cellulose fibers 5. That is, as previously described, the material 1 may be processed to form the outer portion 54 of the component 52. The material 1 forming the outer portion 54 of the component 52 may be a nonwoven sheet material 1 with or without longitudinal slits and having any of the characteristics of the previously discussed embodiments.
[0230] In some embodiments, the core 53 may include a first material 61. The first material 61 may be formed from, for example, but not limited to, paper or regenerated cellulose materials, such as viscose fiber, lyocell, rayon, viscose rayon, cupro fiber, and modal. The core 53 may take the form of a hollow tubular element 62. That is, the material forming the core 53 may be formed as a hollow tubular element, such as a tube 62. The hollow tubular element 62 may include a cavity 64. The cavity 64 may be located at the center of the core 53.
[0231] In some embodiments, the hollow tubular element 62 may have a wall thickness ranging from about 0.5 mm to about 3 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness ranging from about 1 mm to about 2.5 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness ranging from about 1.2 mm to about 1.82 mm. In some embodiments, the hollow tubular element 62 may have a wall thickness ranging from about 1 mm to about 1.5 mm. In some embodiments, the cavity 64 may have a diameter ranging from about 2.5 mm to about 5 mm. In some embodiments, the cavity 64 may have a diameter ranging from about 3 mm to about 4.5 mm.
[0232] In this embodiment, the core portion 53 and the outer portion 54 of the component 52 can be formed coaxially. That is, the longitudinal axis extending through the center of the core portion 53 of the component 52 can coincide with the longitudinal axis extending through the center of the outer portion 54 of the component 52.
[0233] In some embodiments, the outer portion 54 may have an annular cross-section in a plane perpendicular to its longitudinal axis. Therefore, the first and second end surfaces 56, 57 may have an annular cross-section. The hollow tube 62 may also have an annular cross-section in a plane perpendicular to its longitudinal axis. The cavity 64 may have a generally circular cross-section in a plane perpendicular to its longitudinal axis. However, it should be understood that in alternative embodiments, the cross-sectional shapes of the outer portion 54, the hollow tubular element 62, and the cavity 64 may not be annular or circular.
[0234] In some embodiments, the core 53 may be formed solely of the cavity 64. That is, the core 53 may be formed of the cavity 64 defined by the inner surface of the annular outer portion 54, and the hollow tubular element 62 may be omitted. More specifically, the core 53 may not be formed of the first material, and alternatively may be formed of a material not present in the outer portion 54.
[0235] In some embodiments, the annular material body 54 may also be surrounded by a molding paper. The molding paper may have a weight greater than 50 gsm or greater than 60 gsm.
[0236] In some embodiments, component 52 may have a hardness in the range of about 85% to about 97%. In some embodiments, component 52 may have a hardness in the range of about 88% to about 96%.
[0237] In some embodiments, the inner peripheral surface of component 52 may include at least a partial layer of amorphous solid material, as described previously herein. Partial or complete layers may be applied to the inner peripheral surface of the outer portion 54. Thus, an amorphous solid material can form a core. Alternatively, an amorphous solid material may be coated onto the inner peripheral surface of the core 53.
[0238] It should be understood that the aforementioned component 52 can be used in various ways in articles according to the present invention, such as Figure 10 , Figure 11 and Figure 12 As shown in the diagram. For example, component 52 can be used as the nozzle end section of a filter element in an article, such as... Figure 10 As shown, or the upstream filter section in the filter element, such as Figure 11 As shown, or used as a downstream aerosol generation component, such as Figure 12 As shown.
[0239] In some embodiments, the annular material body 54 forming component 52 may comprise multiple fibers 5 formed of regenerated cellulose and an adhesive, as previously described herein. The annular material body 54 of regenerated cellulose fibers and adhesive may have a density of approximately 0.7 g / cm³. 3 To approximately 0.9 g / cm 3 Within the range, preferably about 0.8 g / cm³ 3 The bulk density. The stiffness of the ring-shaped material body 54 of regenerated cellulose fibers and adhesive can be in the range of about 75% to about 98% for unencapsulated materials, and in the range of about 85% to about 99% for encapsulated materials. The encapsulation surrounding the ring-shaped material body 54 can have a weight greater than about 60 gsm.
[0240] Furthermore, it should be understood that, as previously disclosed, the annular material body 54 can be formed from multiple substrate sheets stacked on top of each other, as per [the previous disclosure]. Figure 7 As described. In some embodiments, each of the plurality of substrate sheets may be formed from a plurality of regenerated cellulose fibers. In some embodiments, at least one of the plurality of substrate sheets may be formed from paper.
[0241] refer to Figure 10 A cross-sectional view of an aerosol supply article 10' is shown. The aerosol supply article 10' includes a rod 12 of aerosol generating material 13 and a filter element 22. The filter element includes a first segment formed by a first component 2 and a second segment formed by a second component 52. The first component 2 is located upstream of the second component 52. Therefore, the second component 52 forms the nozzle end of the aerosol supply article 10', and the first component 2 is adjacent to the rod 12 of the aerosol generating material 13. The first component 2 may be as described above. Figures 1 to 8Component 2 as described in any of the above. Alternatively, the first segment can be formed from a known filter segment. Component 52 can be as described regarding Figure 9 The component described.
[0242] refer to Figure 11 A cross-sectional view of an aerosol supply article 10'' is shown. The aerosol supply article 10'' includes a rod 12 of aerosol generating material 13 and a filter element 22. The filter element includes a first segment formed by a first component 52 and a second segment formed by a second component 2. The first component 52 is located upstream of the second component 2. Therefore, the second component 2 forms the nozzle end of the aerosol supply article 10'', and the first component 52 is adjacent to the rod 12 of the aerosol generating material 13. The first component 52 may be as described above. Figure 9 The described component. In this configuration, component 52 can be referred to as a cooling section or cooling unit. The second component 2 can be as described above. Figures 1 to 8 Component 2 as described in any of the above. Alternatively, the second segment can be formed from a known filter segment.
[0243] refer to Figure 12 The diagram shows a cross-sectional view of an aerosol supply article 10'''. The aerosol supply article 10''' includes a rod 12 of aerosol generating material 13 and a filter element 22. The filter element 22 includes components as shown in the diagram. Figures 1 to 8 The segment formed by component 2 as described in any of the above. Alternatively, the filter element can be formed from a known filter segment. (See reference...) Figure 9 As described, the rod 12 of the aerosol generating material 13 is formed by component 52. Therefore, component 52 forms the upstream end of the aerosol supply article 10'''. Component 52 may include an aerosol forming agent material for generating aerosols when heated during use. The cavity 56 of component 52 may be configured to receive a heating element from an aerosol supply device (not shown).
[0244] For reference Figure 13 The diagram shows a perspective view of an aerosol supply article 83 including components 91 and 92 formed of material 1. In one aspect of the invention, components 91 and 92 for the aerosol supply article 83 are provided, each component comprising a body of material 1 containing a plurality of fibers 5 comprising regenerated cellulose. The body of material 1 also includes an adsorbent material 84. The adsorbent material 84 may include at least one of carbon, silica, and CR20.
[0245] Figure 13 The components 91, 92 of this aspect of the invention shown are similar to Figures 1 to 9The components 2 and 52 of the previously described aspects are shown, and therefore their detailed descriptions will be omitted here. Furthermore, similar features and components will retain their terminology and reference numerals. It should also be understood that the features and components of the previously described components 2 and 52 may be incorporated into components 91 and 92 of this aspect, and vice versa.
[0246] Figure 13 The aerosol supply article 83 shown may be a regular, large-sized article, i.e., having a length ranging from about 75 mm to about 91 mm and a circumference ranging from about 23 mm to about 25 mm. The aerosol supply article 83 may include a rod 85 of aerosol generating material 86 wrapped in a wrapping material 87, the rod 85 being longitudinally connected to a filter 88 via a splicing material 89.
[0247] The filter 88 may include a first segment 91 and a second segment 92. The first segment 91 may be the same as components 2, 52 previously described herein. The first segment 91 may be located at the nozzle end of the filter 88 and may be wrapped in a first forming paper 93.
[0248] The second segment 92 may be substantially the same as components 2 and 52 described earlier herein. The second segment 92 may be located at the aerosol-generating material end of the filter 88. The second segment 92 may contain an absorbent material in the form of multiple regenerated cellulose fibers 5, as previously described herein, having an adsorbent material 84 dispersed therein. The second segment 92 may be encased in a second forming paper 94.
[0249] The adsorbent material 84 may include activated carbon particles. The activated carbon particles may be, for example, but not limited to, coconut shell carbon provided in a 30 / 70 mesh size. However, other carbon and / or sizes may be used. For example, particles with diameters ranging from about 0.1 mm to about 1.0 mm, or about 0.2 mm to about 0.9 mm, or about 0.2 mm to about 0.8 mm, or about 0.2 mm to about 0.7 mm, or about 0.2 mm to about 0.6 mm, or about 0.3 mm to about 0.9 mm, or about 0.3 mm to about 0.8 mm, or about 0.3 mm to about 0.7 mm, or about 0.3 mm to about 0.6 mm may be used.
[0250] The second segment 92 may have an adsorbent material 84 of approximately 12 mg per millimeter length. The second segment 92 may also have an adsorbent material, i.e., regenerated cellulose fibers 5, of approximately 4 mg per millimeter length. However, in alternative examples, the amount of adsorbent material 84 may be any value within the range of 6 mg to 16 mg per mm length, or 7 mg to 16 mg, 8 mg to 16 mg, 9 mg to 16 mg, 10 mg to 16 mg, 11 mg to 16 mg, 12 mg to 16 mg, or 13 mg to 16 mg per mm length. The amount of adsorbent material (i.e., regenerated cellulose fibers 5) may be approximately 1.5 mg to approximately 8 mg per mm length, or 1.5 mg to 7 mg, 1.5 mg to 6 mg, 1.5 mg to 5 mg, or 1.5 mg to 4 mg per mm length. Each of the ranges given above can be used for a standard specification filter 88, i.e., having a circumference of approximately 23 mm to 25 mm.
[0251] These parameters have been found to enable filter 88 to exhibit the desired pressure drop and hardness levels for consumer-acceptable aerosol supply products 83, while increasing the level of adsorbent material 84 or other particulate additives in filter 88 compared to known filters.
[0252] The increase in pressure drop and / or hardness percentage caused by the increase in the amount of adsorbent per mm in component 92 of filter 88 can be offset by reducing the amount of absorbent (i.e., regenerated cellulose fiber 5) per mm. Furthermore, the increase in pressure drop and / or hardness percentage caused by the increase in the amount of absorbent per mm in component 92 of filter 88 can be offset by reducing the amount of adsorbent material 84 per mm. In particular, the inventors have discovered that for aerosol supply articles 83 of regular specifications, the amount C of adsorbent material 84 per mm length... w (in mg) and for aerosol supply products of regular specifications 83, the amount T of absorbent material (i.e., regenerated cellulose fiber 5) per mm length. w (In mg) can be determined based on the following range: 10 ≤ (C) w + T w ≤ 20, These values enable component 92 of filter 88 to exhibit appropriate filter pressure drop and hardness levels, as discussed earlier in this paper.
[0253] If, for aerosol products 83 with a regular circumference, the amount of adsorbent material 84 per mm of length and the amount of absorbent material (in mg) fall within the following ranges, particular benefits can be obtained: 11 ≤ (C) w + T w≤ 18, Or more specifically, within the following scope: 12 ≤ (C) w + T w )≤ 17, For aerosol products with regular circumferences, the advantage can also be achieved in other ranges, including 10 ≤ (C) adsorbent and absorbent weight per mm of length (in mg). w + T w )≤ 19、10≤(C w + T w )≤ 18、10≤(C w +T w )≤ 17、11≤(C w + T w )≤ 20、12≤(C w + T w )≤ 20、13≤(C w + T w )≤ 20 and 14≤(C w +T w )≤ 20.
[0254] Except for the selected adsorbent material 84 and absorbent weight per mm falling within the above range, the adsorbent material 84 and absorbent weight C w T w At least one of the levels may be greater than the minimum level. For example, in some embodiments of the invention, the absorbent level may be equal to or greater than about 1.5 mg / mm. For example, in some embodiments of the invention, the level of adsorbent material 84 may be equal to or greater than 6 mg / mm. Two minimum levels are used for aerosol supply articles 84 with a regular circumference of about 23 mm to about 25 mm.
[0255] The above scope can also be applied to particulate additives other than adsorbents, such as certain flavorings.
[0256] The second section 92 can be manufactured using filter manufacturing equipment, such as the Turmalin equipment from Hauni Maschinenbau AG in Germany.
[0257] In cases where the weight of absorbent per mm is less than 3.5 mg / mm and / or the weight of adsorbent material 84 per mm is less than 9 mg / mm (both for regular circumference aerosol supply articles 83), and / or the combined weight of adsorbent material 84 and absorbent per mm is in the lower range of the above range, such as 12 mg / mm or less, the inventors have determined that the reduction in stiffness caused by these low weights can be offset by using, for example, a more rigid forming paper and / or a more rigid tipping material surrounding the component. For example, the forming paper and / or tipping material may have a stiffness greater than 30 g / m². 2 Greater than 40 g / m 2 Greater than 50 g / m 2 Greater than 60g / m 2 Greater than 70 g / m 2 or greater than 80 g / m 2 The basis weight. Alternatively, multi-layer forming paper and / or tipping material can be used.
[0258] Known filters (containing carbon particles dispersed in continuous cellulose acetate filament bundles cut to the desired segment length) typically have a carbon loading limit of 5 mg / mm in standard specifications to keep the pressure drop at the level desired by the consumer. Higher loading can lead to excessive pressure drop. If a higher loading is desired, a cavity triple filter (cavity triple filter) is usually required, which has cellulose acetate filament bundle segments at the nozzle end and the aerosol-generating material end, with a carbon-filled cavity between them. Such cavity filters result in the removal of a certain amount of cellulose acetate for a given fiber length, and therefore this can negatively impact certain aspects, such as filtration and phenol sensitivity. Therefore, there is a clear advantage to filter media that allows for increased additive loading without causing excessive pressure drop and without removing regenerated cellulose fibers.
[0259] The inventors have recognized that by using randomly oriented discrete short-length regenerated cellulose fibers to form a component 82 (such as filter segment 92) manufactured using filter manufacturing equipment (such as Turmalin), and by selecting an amount of adsorbent material 84 in the range of about 6 mg to about 16 mg per mm on average, and an amount of absorbent (i.e., regenerated cellulose fiber 5) in the range of about 1.5 mg to about 8 mg per mm on average (or within other ranges and limitations previously outlined), an improved filter component 92 can be provided for aerosol supply articles 83 with regular circumferences, while maintaining acceptable pressure drop and filter stiffness parameters.
[0260] refer to Figure 14This is a schematic diagram of a component manufacturing apparatus 100 (such as a Turmalin apparatus) for manufacturing filters. Components formed in the component manufacturing apparatus 100 can be used as filter segments. (Reference) Figure 14 A source 101 of multiple regenerated cellulose fibers 5 is supplied to a filter manufacturing apparatus comprising multiple modules 102-106. The feeder module 102 receives the supply of regenerated cellulose fibers 5 and, in an embodiment supplying a tow of regenerated cellulose fibers to apparatus 100, feeds it into a cutter and feeder 23. The cutter and feeder 23 can cut the regenerated cellulose fibers 5 into short fiber lengths as previously described. In an embodiment supplying material 1 comprising multiple hydroentangled or wet-laid regenerated cellulose fibers 5 to apparatus 100, the cutter and feeder 23 may be omitted. A filter bander 104 includes a vacuum belt on which the regenerated cellulose fibers 5 are disposed. This is fed into a rod former 105 for forming the band of regenerated cellulose fibers 5 into rods wrapped with forming paper. Finally, a component cutter 106 cuts the rods into components of desired lengths.
[0261] The filter belt former 104 may include a combing unit that dispenses material 1 onto a vacuum belt, and multiple hoppers for applying additives, such as granules or additional fibers. An add-back system may also be included, if desired, for feeding a third additive into the belt of regenerated cellulose fibers 5. Alternatively, the add-back system may be used to feed any loosely cut filter material back into the feeder module 102 to reduce waste. The filter belt former 104 may include a metering roller that is adjustable to allow control of the additive loading and ensure uniformity of the regenerated cellulose fiber belt. The filter belt former 24 may also include a jet inserter for allowing liquids, such as flavoring agents, to be injected directly into component 82.
[0262] In use, the Turmalin device 100 operates as follows: The feeder module 102 feeds the regenerated cellulose fiber bundle 5 into the cutter and follower unit 103. When using material 1 as described above, the cutter and follower unit 103 can be omitted. The regenerated cellulose fibers 5 are transferred to the carding unit of the filter tape former 104, from which they are drawn onto a vacuum belt. Additives are fed into the airflow carrying the regenerated cellulose fibers 5, and the rod former 25 forms the belt into a continuous section 92, which is bound by filter forming paper. The segment cutter 106 cuts the continuous section containing the regenerated cellulose fibers 5 into segments of the desired length.
[0263] The acknowledged advantages of the Turmalin device 100 include: the ability to contain higher loadings of additives, such as carbon; retention of the activity of the carbon additives due to the absence of plasticizers such as triacetin, and the absence of carbon poisoning; and a longer product life. Further advantages and improvements have been achieved through filter design and manufacturing developments by the inventors, as described below.
[0264] Although the additives in the previously described embodiments have been described as being able to be particles of adsorbent material 84, particularly activated carbon, other adsorbent materials 84, or other additives. For example, the adsorbent can be an ion exchange resin, such as CR20, or other materials such as zeolite, silica gel, sepiolite (meerschaum), alumina (activated or unactivated), carbonaceous resin, magnesium silicate, including sepiolite (Mg4Si6O). 13 (OH)2 (6H2O) or a combination thereof with or without activated charcoal. Additionally, other additives that alter the smoke inhaled through component 84 may be used, such as flavoring agents, for example menthol crystals, or humectant particles.
[0265] Filters comprising randomly oriented discrete cellulose acetate fibers are previously known to be manufactured. However, similar to conventional cellulose acetate tow filters, manufacturing techniques may require the use of plasticizers, such as triacetin, to bind the randomly oriented fibers into a robust structure. The advantage of the Turmalin device, however, is that it does not require the use of plasticizers. In embodiments where regenerated cellulose fiber tows are fed into the device, the Turmalin device 100 induces mechanical bonding within the cut fibers, thus eliminating the need for plasticizers. This eliminates any undesirable effects caused by the use of products such as triacetin.
[0266] In addition to the advantages mentioned above, the inventors have recognized that the Turmalin device or similar device enables the design of various components that provide additional improvements and advantages.
[0267] For reference Figure 15 A schematic diagram of an aerosol supply article 111 is shown. The aerosol supply article 111 shown is similar to... Figure 13 The aerosol supply article 111 shown in the figure and previously described herein. The first paragraph 91 may be as previously referred to. Figures 2 to 13 Segment 2, which describes any of the regenerated cellulose fibers 5.
[0268] The second segment 92 may include a first absorbent material 113 and a second absorbent material 114 encased in a second forming paper 94. The second absorbent material 114 may be dispersed within the first absorbent material 113. The first absorbent material 113 may contain multiple regenerated cellulose fibers 5 having a monofilament denier in the range of about 1 to about 10. The second absorbent material 114 may contain multiple regenerated cellulose fibers 5 having a monofilament denier in the range of about 20 to about 30.
[0269] The second segment 92 can be manufactured using the Turmalin apparatus 100. The second segment 92 can be manufactured by supplying a first absorbent material 113 to the feeder 102 and adding a second absorbent material 114 via an additive hopper in the filter belt 104. Alternatively, the first and second absorbent materials 113, 114 can each be supplied to the feeder 102 of the apparatus 100.
[0270] Although the second absorbent material 114 has previously been described as multiple regenerated cellulose fibers 5, alternative materials may also be used. For example, the fibers of the second absorbent material 114 may include polyvinyl alcohol (PVOH), polylactic acid (PLA), poly(ε-caprolactone) (PCL), poly(1,4-butanediol succinate) (PBS), poly(butylene adipate-co-butylene terephthalate) (PBAT), starch-based materials, paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
[0271] Further advantages can be achieved by using nanofiber materials as a substrate for catalysts to enhance filtration performance. Nanofibers possess a sufficiently high surface area to volume ratio to exhibit catalytic activity potential. These nanofibers can be used... Figure 14 The device is added to the filter, for example, when the additive is loaded through one or more hoppers in the filter belt 104, so that the nanofibers are metered into the airflow within the filter belt 104.
[0272] Figure 16 A schematic diagram of an aerosol supply article 111 is shown, which has a component 92 including nanofibers 115 carrying additives for enhancing or reducing at least one component of the mainstream aerosol drawn by the aerosol supply article 111 during use. Figure 16 The aerosol supply product 111 shown in the figure and Figure 13 The aerosol supply article 111 shown is substantially the same, and therefore its detailed description will be omitted here. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0273] Nanofibers 115 may comprise carbon nanofibers 115a loaded with zinc oxide (ZnO) particles, which act as catalysts 115b, for example, enhancing the reduction of HCN in aerosols. In alternative embodiments, other nanofiber materials and / or other catalytic agents (including combinations with carbon and / or ZnO), such as gold (Au), may be used alone or in combination to reduce carbon monoxide (CO) in aerosols. Nanofibers 115a may be added as an additive to multiple regenerated cellulose fibers 5 using the previously described device 100.
[0274] The nanofibers 115 can have any suitable length for inclusion in the component 92, such as between 1 mm and 15 mm, or from 5 mm to 12 mm. The diameter of the nanofibers 115 used can be from 25 nm to 900 nm, or from 50 nm to 500 nm, or from 100 nm to 300 nm.
[0275] For reference Figure 17 A schematic diagram of an aerosol supply article 111 comprising multiple regenerated cellulose fibers 5 is shown, with line 116 extending through the multiple regenerated cellulose fibers 5. Figure 17 The aerosol supply product 111 shown in the figure and Figure 13 The aerosol supply article 111 shown is substantially the same, and therefore its detailed description will be omitted herein. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0276] The thread 116 can be used as a carrier to add flavoring to component 82. A thread insertion device (not shown) can be installed in the center of the filter vacuum belt, wherein the thread insertion needle carries the thread into the axial region of component 82 during component 82 formation. The embodiments described herein involving the insertion of thread 116 into component 82 are particularly advantageous in fine (slim) and ultra-fine forms (i.e., less than 22 mm). Thread 11 can extend axially through the second segment 92.
[0277] For reference Figure 18 A schematic diagram is shown of an aerosol supply article 111 comprising multiple regenerated cellulose fibers 5, wherein the regenerated cellulose fibers have a capsule-shaped aerosol modifier release component 117 disposed therein. Figure 18 The aerosol supply product 111 shown in the figure and Figure 13 The aerosol supply article 111 shown is substantially the same, and therefore its detailed description will be omitted herein. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0278] The inventors also recognize that the Turmalin device 100 or similar device can be arranged to allow the capsule 117 to be contained within multiple regenerated cellulose fibers 5 while ensuring uniform distribution of the capsule contents (such as flavoring agents). In some embodiments, the capsule 117 may be a microcapsule or other encapsulation material.
[0279] In a manner similar to that described regarding carbon loading, such materials can be added at higher levels to deliver more flavoring. Capsules (whether larger, such as capsules with a diameter between 3 mm and 8 mm, microcapsules, or other encapsulating materials) can be pushed into multiple regenerated cellulose fibers 5 in device 100 (such as a Turmalin device) by introducing capsules 117 through a tube into the regenerated cellulose fibers 5 at the downstream end of filter belt 104. Capsules 117 can be blown into the regenerated cellulose fibers 5, for example, using high-pressure gas at a frequency corresponding to the speed of filter belt 104, such that capsules 117 are positioned at appropriate intervals in the resulting portions 82, 92, and the portions 82, 92 cut from the continuous bar contain the desired number of capsules 117. Alternatively, one of the previously described additive hoppers can be used to meter microcapsules onto the filter belt in a manner similar to that used for additives.
[0280] An aerosol modifier release component containing an encapsulated flavoring agent, in this embodiment in the form of a capsule 117, can be arranged within the second segment 92. (Brief Reference) Figure 19 A schematic diagram is shown of an aerosol supply article 83 comprising multiple regenerated cellulose fibers 5, the regenerated cellulose fibers having aerosol modifier release components 117 in the form of microcapsules disposed therein. The aerosol modifier release components, in this embodiment in the form of microcapsules 118, containing encapsulated flavoring agents, can be arranged within the second segment 92.
[0281] refer to Figure 20 A schematic diagram of an aerosol supply article 83 comprising multiple regenerated cellulose fibers 5 having shredded material 119 disposed therein is shown. Figure 20 The aerosol supply product 83 shown in the figure Figure 13 The aerosol supply article 83 shown is substantially the same, and therefore its detailed description will be omitted herein. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0282] In addition to encapsulated flavoring agents, other forms of flavoring additives can be added to the filter containing multiple regenerated cellulose fibers 5. For example, flavoring additives can be added in the form of plant materials, such as mint or tobacco leaves or other plant leaves, plant seeds, or plant peels, as previously described herein and outlined in more detail below. Such additives can be added to the additive hopper in the belt forming machine of device 100 and thus metered into the regenerated cellulose fiber airflow during filter belt formation or component formation. In some embodiments, because plasticizers are not used, the release of flavoring from the plant material additives can be enhanced.
[0283] In some embodiments, the shredded material 119 may be contained within a material formed from multiple fibers 5 comprising regenerated cellulose. Such sheet materials may include sheet materials formed from plant materials such as peppermint or menthol, tobacco, or reconstituted tobacco. Those skilled in the art will recognize that the provided list is not limiting and that any suitable sheet material may be used. The benefits of using such materials in shredded form are that they can improve the dispersibility of the material within components 82, 92 and also improve the biodegradability of components 82, 92. Furthermore, the use of novel materials can be used to improve the performance of components 82, 92 and / or alter the characteristics of the aerosol inhaled through components 82, 92.
[0284] The shredded material 119 may include materials formed from the following fibers: polyvinyl alcohol (PVOH), polylactic acid (PLA), poly(ε-caprolactone) (PCL), poly(1,4-butanediol succinate) (PBS), poly(butylene adipate-co-butylene terephthalate) (PBAT), starch-based materials, paper, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof.
[0285] The inventors have also recognized the potential of combining biodegradable or other alternative fibers, such as PVOH fibers, with regenerated cellulose fibers. PVOH is not typically used in conventional filter manufacturing because it is generally non-curlable. However, including PVOH or other non-curlable fibers together with regenerated cellulose fibers means that this problem can be overcome. The use of such materials can result in components with improved biodegradability and water solubility.
[0286] In some embodiments, to add PVOH or other non-crimped fibers to a component, or PLA or other crimped fibers to a component, the feeder module 102 of device 100 can be arranged to feed two raw material ropes into the cutter and the machine 23. Thus, the number of processing steps is reduced by straightening the material as a tow instead of first converting it into sheet material.
[0287] Furthermore, omitting the step of converting the material into a tow material can further reduce the number of processing steps. In such embodiments, there is no need to feed, cut, or randomize the fibers. Instead, the material in the form of raw fiber can be directly mixed with multiple regenerated cellulose fibers 5 in the direct insertion device 100.
[0288] In other embodiments, one of the above-described additive hoppers can be used to meter non-crimped fibers or other crimped fibers into the regenerated cellulose fibers 5 in the filter belt 104.
[0289] In one aspect of the invention, a material 121 is provided for the component 2 of the aerosol supply article 3, such as... Figure 21 As shown. Material 121 includes a first plurality of fibers 122 and a second plurality of fibers 123. The first plurality of fibers 122 are formed of a first material. The second plurality of fibers 123 are formed of a second material. The first material is different from the second material.
[0290] In some embodiments, the first plurality of fibers 122 may be formed of regenerated cellulose. The regenerated cellulose fibers 122 may be the same as the regenerated cellulose fibers previously described in this application.
[0291] In some embodiments, the second plurality of fibers 123 may be formed of regenerated cellulose. The regenerated cellulose fiber 122 may be the same as the regenerated cellulose fiber previously described in this application. However, the first plurality of fibers 122 may be formed of, for example, viscose fiber, rayon, viscose rayon, and lyocell, while the second plurality of fibers 123 may be formed of, for example, viscose fiber, rayon, viscose rayon, and lyocell.
[0292] In some embodiments, the second plurality of fibers 123 may be formed of a non-regenerated cellulose material. For example, the second plurality of fibers 123 may be formed of at least one of cellulose acetate, polylactic acid, and paper.
[0293] Material 121 may also include any of the aerosol forming agent materials, adhesives, plasticizers, additives, active substances or components as described previously with respect to material 1 and component 2 of the previously described embodiments.
[0294] In addition, it provides materials 121 (such as...) Figure 21 Components (as shown) Figure 2 (As shown). The component can be rod-shaped. Furthermore, the component can include any of the constructions described previously regarding the components of the previously described embodiments.
[0295] For example, in some embodiments, the component 2 formed of material 121 may include an aerosol modifier release component 40 surrounded by material 121, as per [reference to...]. Figure 6As described.
[0296] In some embodiments, the component 2 formed of material 121 can be formed and shaped from multiple sheets of material 121 stacked on top of each other, as per [reference to...]. Figure 7 and Figure 8 As described.
[0297] In some embodiments, the component 2 formed of material 121 may include a longitudinally extending core 53 and an outer portion 54 extending longitudinally around the core 53, wherein the outer portion 54 is formed of material 121, as per [reference to...]. Figure 9 As described.
[0298] As used herein, the term "delivery system" is intended to include systems for delivering at least one substance to a user, and includes: Combustible aerosol supply systems, such as those for cigarettes, cigarettes, and tobacco used in pipes or for rolling or homemade cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable materials); and Non-flammable aerosol supply systems that release compounds from aerosol generating materials without burning the aerosol generating materials, such as electronic cigarettes, tobacco heating products, and hybrid systems that use a combination of aerosol generating materials to generate aerosols.
[0299] According to this disclosure, a "combustible" aerosol supply system is an aerosol supply system in which the component aerosol generating material of the aerosol supply system (or its components) burns or ignites during use in order to facilitate the delivery of at least one substance to the user.
[0300] In some implementations, the delivery system is a combustible aerosol supply system, such as a system selected from the group consisting of cigarettes, cigarettes, and cigars.
[0301] In some embodiments, this disclosure relates to a component for use in a combustible aerosol supply system, such as a filter, filter rod, filter segment, tobacco stick, small plug (spill), aerosol modifier release component (such as capsule, thread or bead), or paper (such as forming paper, tipping paper or cigarette paper).
[0302] According to this disclosure, a "non-flammable" aerosol supply system is an aerosol supply system in which the aerosol generating material of the aerosol supply system (or its components) is not burned or ignited in order to facilitate the delivery of at least one substance to a user.
[0303] In some implementations, the delivery system is a non-flammable aerosol supply system, such as a powered non-flammable aerosol supply system.
[0304] In some implementations, the non-flammable aerosol supply system is an electronic cigarette, also known as a vapor device or electronic nicotine delivery system (END); however, it should be noted that the presence of nicotine in the aerosol generating material is not necessary.
[0305] In some implementations, the non-combustible aerosol supply system is an aerosol-generating material heating system, also known as a heated non-combustible system. An example of such a system is a tobacco heating system.
[0306] In some embodiments, the non-flammable aerosol supply system is a mixing system for generating aerosols using a combination of aerosol-generating materials, one or more of which can be heated. Each of the aerosol-generating materials may be in, for example, solid, liquid, or gel form, and may or may not contain nicotine. In some embodiments, the mixing system includes liquid or gel aerosol-generating materials and solid aerosol-generating materials. Solid aerosol-generating materials may include, for example, tobacco or non-tobacco products.
[0307] Typically, a non-flammable aerosol supply system may include a non-flammable aerosol supply device and consumables used in conjunction with the non-flammable aerosol supply device.
[0308] In some embodiments, this disclosure relates to consumables comprising aerosol-generating materials and configured for use with a non-flammable aerosol supply device. These consumables are sometimes referred to as articles in this disclosure.
[0309] In some embodiments, a non-flammable aerosol supply system (such as its non-flammable aerosol supply device) may include a power source and a controller. The power source may be, for example, an electric power source or an exothermic power source. In some embodiments, the exothermic power source includes a carbon matrix that can be powered to distribute power in the form of heat to the aerosol-generating material or heat-transfer material adjacent to the exothermic power source.
[0310] In some embodiments, a non-flammable aerosol supply system may include an area for receiving consumables, an aerosol generator, an aerosol generation area, a housing, nozzles, filters, and / or aerosol modifiers.
[0311] In some embodiments, consumables for use with a non-flammable aerosol supply device may include aerosol generating material, aerosol generating material storage area, aerosol generating material delivery component, aerosol generator, aerosol generating area, housing, package, filter, nozzle and / or aerosol modifier.
[0312] In some implementations, the substance to be delivered includes an active substance.
[0313] As used herein, active substances can be physiologically active materials, which are materials designed to achieve or enhance physiological responses. Active substances can be, for example, selected from nutritional supplements, nootropics, and psychoactive substances. Active substances can be naturally occurring or synthetically obtained. Active substances can include, for example, nicotine, caffeine, taurine, caffeine, vitamins (such as B6 or B12 or C), melatonin, or components, derivatives, or combinations thereof. Active substances can also include one or more components, derivatives, or extracts of tobacco or another plant material.
[0314] In one implementation, the active substance is a legally permitted recreational drug.
[0315] In some embodiments, the active substance includes nicotine. In other embodiments, the active substance includes caffeine, melatonin, or vitamin B12.
[0316] As noted herein, active substances may include or be derived from one or more plant materials or their components, derivatives, or extracts. As used herein, the term "plant material" includes any material derived from a plant, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, shells, pods, etc. Alternatively, the material may include active compounds naturally present in the plant material, obtained through synthesis. The material may be in the form of a liquid, gas, solid, powder, dust, pulverized particles, fine particles, pellets, fragments, strips, sheets, etc. Exemplary plant materials are tobacco, eucalyptus, and star anise (also known as star anise). Anise, hemp, cocoa, fennel, lemongrass, peppermint, spearmint, rooibos tea, chamomile, flax, ginger, ginkgo, hazelnut, hibiscus, bay leaf, licorice, matcha, yerba mate, orange peel, papaya, rose, sage, tea (such as green or black tea), thyme, clove, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, fennel, nutmeg, oregano, red pepper, rosemary Fragrance, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, holly, perilla, turmeric, turmeric root powder, sandalwood, coriander leaves, bergamot, orange blossom, myrtle, blackcurrant, valerian, Spanish bell pepper, nutmeg, damien, marjoram, olive, lemon balm, lemon basil, chives, parsley, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guana tea, chlorophyll, baobab, or any combination thereof. The mint can be selected from the following mint varieties: wild mint (Mentha Arventis), cultivated mint (Mentha cv), Egyptian mint (Menthaniliaca), peppermint (Mentha piperita), cultivated lemon peppermint (Mentha piperita citratac.v.), cultivated peppermint (Mentha piperita cv), spearmint (Mentha spicata crispa), heartleaf mint (Mentha cardifolia), longleaf mint (Memtha longifolia), pineapple mint (Mentha suaveolens variegata), lip mint (Mentha pulegium), cultivated spearmint (Mentha spicatac.v.), and roundleaf mint (Mentha suaveolens).
[0317] In some embodiments, the active substance includes or is derived from one or more plant materials or their components, derivatives or extracts, and the plant material is tobacco.
[0318] In some embodiments, the active substance includes or is derived from one or more plant materials or their components, derivatives or extracts, and the plant materials are selected from eucalyptus, star anise, cocoa and hemp.
[0319] In some embodiments, the active substance includes or is derived from one or more plant materials or components, derivatives or extracts thereof, and the plant materials are selected from rooibos tea and fennel.
[0320] In some implementations, the substance to be delivered includes a flavoring agent.
[0321] As used herein, the terms “flavoring agent” and “flavor enhancer” refer to materials that, where permitted by local regulations, may be used in a product to produce a taste, aroma, or other bodily sensation desired by an adult consumer. These may include naturally occurring flavoring agents, plant materials, extracts of plant materials, synthetically obtained materials, or combinations thereof (e.g., tobacco, licorice, hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, anise seed, cinnamon, turmeric, Indian spices, Asian spices, herbs, holly, cherry, berries, raspberries, cranberries, peach, apple, orange, mango, clementine, lemon, lime, tropical fruits, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Tolingo, bourbon whiskey, Scotch whisky). Avoid: Whiskey, Gin, Tequila, Rum, Spearmint, Peppermint, Lavender, Aloe Vera, Cardamom, Celery, Bitter Bean Peel, Cardamom, Sandalwood, Bergamot, Geranium, Arabic Tea, Sorghum, Areca Leaf, Coriander, Pine, Honey Extract, Rose Oil, Vanilla, Lemon Oil, Orange Oil, Orange Blossom, Cherry Blossom, Cinnamon, Coriander, Cognac, Jasmine, Ylang-ylang, Sage, Fennel, Mustard, Green Pepper, Ginger, Coriander, Coffee, Hemp, from any source Peppermint oil, eucalyptus, star anise, cocoa, lemongrass, rooibos tea, flax, ginkgo leaves, hazelnuts, hibiscus, bay leaves, mate tea, orange peel, rose, tea (such as green or black tea), thyme, juniper, elderflower, basil, bay leaves, fennel, oregano, chili peppers, rosemary, saffron, lemon peel, mint, perilla, turmeric, coriander, myrtle, blackcurrant, valerian, Spanish bell pepper, nutmeg, sprig salsa, marjoram, olive, lemon balm, lemon balm This product may contain leeks, chives, parsley, verbena, tarragon, limonene, thymol, camphene, flavor enhancers, bitter taste receptor blockers, sensory receptor activators or stimulants, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, plant materials, or breath fresheners. These may be imitation, synthetic, or natural ingredients or blends thereof. They may be in any suitable form, such as liquids (e.g., oils), solids (e.g., powders), or gases.
[0322] In some embodiments, the flavoring agent includes menthol, spearmint, and / or peppermint. In some embodiments, the flavoring agent includes flavoring components of cucumber, blueberry, citrus fruits, and / or cranberry. In some embodiments, the flavoring agent includes eugenol. In some embodiments, the flavoring agent includes flavoring components extracted from tobacco.
[0323] In some embodiments, in addition to or in place of aroma or taste receptors, flavoring agents may include sensory agents (sensates) designed to induce somatic sensations typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), and these may include agents that provide heating, cooling, tingling, or numbing effects. Suitable heat-effecting agents may be, but are not limited to, vanillyl ether, and suitable coolants may be, but are not limited to, eucalyptol, WS-3.
[0324] Aerosol-generating materials are materials that can generate aerosols, for example, when heated, irradiated, or otherwise powered. Aerosol-generating materials can be in the form of solids, liquids, or semi-solids (such as gels), and may or may not contain active substances and / or flavorings.
[0325] Aerosol-generating materials may include one or more active substances and / or flavoring agents, one or more aerosol-forming agent materials, and optionally one or more other functional materials.
[0326] The aerosol-generating material may include a binder (such as a gelling agent) and an aerosol-forming agent material. Optionally, a substance to be delivered and / or a filler may also be present. Optionally, a solvent (such as water) may also be present, and one or more other components of the aerosol-generating material may be soluble in the solvent or insoluble in the solvent. In some embodiments, the aerosol-generating material is substantially free of plant-based materials. In particular, in some embodiments, the aerosol-generating material is substantially free of tobacco.
[0327] Aerosol-generating materials may include or be in the form of aerosol-generating membranes. Aerosol-generating membranes may include binders (such as gelling agents) and aerosol-forming agents. Optionally, a substance to be delivered and / or fillers may also be present. Aerosol-generating membranes may be substantially free of plant-based materials. In particular, in some embodiments, the aerosol-generating material is substantially free of tobacco.
[0328] The aerosol-generating membrane can have a thickness of about 0.015 mm to about 1 mm. For example, the thickness can be in the range of about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm.
[0329] Aerosol-generating membranes can be continuous. For example, the membrane may include or may be a continuous sheet of material. The sheet may be in the form of an envelope, may be aggregated to form an aggregated sheet, or may be shredded to form a shredded sheet. The shredded sheet may include one or more strands or strips of aerosol-generating material.
[0330] Aerosol-generating membranes can be discontinuous. For example, an aerosol-generating membrane may include one or more discrete portions or regions of aerosol-generating material, such as points, strips, or lines that can be supported on a support. In such embodiments, the support may be planar or non-planar.
[0331] Aerosol-generating membranes can be formed by combining a binder (such as a gelling agent) with a solvent (such as water), an aerosol forming agent material, and one or more other components (such as one or more substances to be delivered) to form a slurry, and then heating the slurry to evaporate at least some of the solvent to form an aerosol-generating membrane.
[0332] The slurry can be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt%, or 90 wt% of the solvent.
[0333] Aerosol-generating materials may include or may be "amorphous solids". In some embodiments, the aerosol-generating material includes an aerosol-generating membrane that is an amorphous solid. The amorphous solid may be a "monolithic solid". The amorphous solid may be substantially non-fibrous. In some embodiments, the amorphous solid may be a dried gel. An amorphous solid is a solid material that can retain some fluid (such as a liquid) within it. In some embodiments, the amorphous solid may, for example, include from about 50 wt%, 60 wt%, or 70 wt% to about 90 wt%, 95 wt%, or 100 wt% of amorphous solids.
[0334] Amorphous solids may be substantially free of plant-based material. Amorphous solids may be substantially free of tobacco.
[0335] Aerosol forming agent materials may include one or more components capable of forming aerosols. In some embodiments, the aerosol forming agent material may include one or more of the following: glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butanediol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl caprylate, triethyl citrate, glyceryl triacetate, a mixture of glyceryl diacetate, benzyl benzoate, benzyl phenylacetate, glyceryl tribocylate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
[0336] One or more other functional materials may include one or more of pH adjusters, colorants, preservatives, adhesives, fillers, stabilizers, and / or antioxidants.
[0337] The material may be present on or within the support to form a matrix. The support may be, for example, or may include, paper, cardboard, paperboard, hardboard, recycled material, plastic material, ceramic material, composite material, glass, metal, or metal alloy. In some embodiments, the support includes a receptor. In some embodiments, the receptor is embedded within the material. In some alternative embodiments, the receptor is located on one or both sides of the material.
[0338] Consumables are articles comprising or composed of aerosol-generating materials, some or all of which are intended to be consumed by a user during use. Consumables may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol-generating area, a housing, a package, a nozzle, a filter, and / or an aerosol modifier. Consumables may also include an aerosol generator, such as a heater, which releases heat during use to cause the aerosol-generating material to generate an aerosol. For example, the heater may include a combustible material, a material that can be heated by electrical conduction, or a sensor.
[0339] A sensor is a material that can be heated by the penetration of a changing magnetic field (such as an alternating magnetic field). A sensor can be a conductive material, causing induction heating of the heating material by the penetration of the changing magnetic field. A heating material can be a magnetic material, causing hysteresis heating of the heating material by the penetration of the changing magnetic field. A sensor can be both conductive and magnetic, allowing it to be heated by both heating mechanisms. In this paper, a device configured to generate a changing magnetic field is referred to as a magnetic field generator.
[0340] Aerosol modifiers are substances typically located downstream of the aerosol generation region, configured to modify the generated aerosols, for example, by altering their taste, flavor, acidity, or other properties. The aerosol modifier can be disposed in an aerosol modifier release component, which is operable to selectively release the aerosol modifier.
[0341] For example, aerosol modifiers can be additives or adsorbents. For example, aerosol modifiers can include one or more of flavoring agents, coloring agents, water, and carbon adsorbents. For example, aerosol modifiers can be solid, liquid, or gel. Aerosol modifiers can be in powder, filament, or granular form. Aerosol modifiers may not contain filter materials.
[0342] An aerosol generator is a device configured to generate aerosols from an aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy to release one or more volatiles from the aerosol-generating material to form an aerosol. In some embodiments, the aerosol generator is configured to generate aerosols from the aerosol-generating material without heating. For example, the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.
[0343] It should be understood that the advantages, implementation methods, examples, functions, features, structures, and / or other aspects described herein should not be considered as limitations on the scope of the invention as defined by the claims or on the equivalents of the claims, and other implementation methods and modifications may be utilized without departing from the scope of the claimed invention. In addition to those specifically described herein, various embodiments of the invention may suitably include, consist of, or substantially consist of suitable combinations of the disclosed elements, components, features, portions, steps, devices, etc. Furthermore, this disclosure may include other inventions not currently claimed but which may be claimed in the future.
Claims
1. A material used as a component in an aerosol supply article, said material comprising: It contains multiple fibers of regenerated cellulose, and Adhesive, The material has a content of approximately 0.1 g / cm³. 3 To approximately 0.4 g / cm 3 The packing density within the range.
2. The material according to claim 1, wherein, The multiple fibers have a density of approximately 0.12 g / cm³. 3 To approximately 0.3 g / cm 3 The packing density within the range.
3. The material according to claim 2, wherein, The multiple fibers have a density of approximately 0.15 g / cm³. 3 To approximately 0.25 g / cm 3 The packing density within the range.
4. The material according to any one of the preceding claims, wherein, The multiple fibers are discontinuous.
5. The material according to claim 4, wherein, The multiple fibers have a fiber length ranging from about 10 mm to about 60 mm.
6. The material according to any one of the preceding claims, wherein, The multiple fibers are wet-laid.
7. The material according to any one of the preceding claims, wherein, The adhesive comprises between 2% and 10% by weight of the component used in the aerosol supply article, optionally wherein the adhesive contains pectin.
8. The material according to any one of the preceding claims, wherein, The multiple fibers have a denier of monofilament in the range of about 1 dpf and about 30 dpf.
9. The material according to claim 8, wherein, The multiple fibers have a denier of monofilament in the range of about 1 dpf and about 20 dpf.
10. The material according to claim 9, wherein, The multiple fibers have a denier of monofilament ranging from about 1 dpf to about 10 dpf.
11. The material according to any one of the preceding claims, wherein, The multiple fibers are composed of regenerated cellulose and constitute between 90% and 100% by weight of the fibers included in the material.
12. The material according to claim 8 or claim 11, wherein, The plurality of fibers includes a first plurality of regenerated cellulose fibers and a second plurality of regenerated cellulose fibers, wherein the first plurality of regenerated cellulose fibers has a greater denier than the second plurality of regenerated cellulose fibers. Optionally, the first plurality of regenerated cellulose fibers has a denier in the range of about 10 dpf to about 30 dpf, and the second plurality of regenerated cellulose fibers has a denier in the range of about 1 dpf to about 10 dpf.
13. The material according to claim 12, wherein, The plurality of fibers includes a first plurality of regenerated cellulose fibers comprising about 60% to about 90% by weight and a second plurality of regenerated cellulose fibers comprising about 10% to about 40% by weight.
14. The material according to any one of the preceding claims, wherein, The multiple fibers have a fiber length ranging from about 10 mm to about 60 mm.
15. The material according to any one of the preceding claims, wherein, The maximum cross-sectional dimension of each filament is greater than 10 μm.
16. The material according to any one of the preceding claims, wherein, The material is curled.
17. The material according to claim 16, wherein, The material has a curl depth ranging from about 1 μm to about 800 μm.
18. The material according to any one of the preceding claims, wherein, The material is in the form of a sheet or a long, rectangular material body.
19. The material according to claim 18, wherein, The material has a content of 30 to 150 g / m³. 2 30 to 120 g / m 2 Or 40 to 100 g / m 2 The weight of the sheet material.
20. The material according to claim 18 or 19, wherein, The material is in the form of a sheet having a thickness between 60 and 500 µm or between 150 and 350 µm.
21. The material according to any one of claims 18 to 20, wherein, The material has a content of 0.2 to 0.3 g / cm³. 3 Or 0.22 to 0.28 g / cm³ 3 Sheet form with a bulk density.
22. The material according to any one of claims 18 to 21, wherein, The material is in the form of a nonwoven sheet aggregated to form a rod-shaped element, optionally wherein, when aggregated to form the rod-shaped element, the nonwoven sheet is uncurled and unpleated.
23. The material according to any one of claims 18 to 22, wherein, The material is in the form of a plurality of nonwoven sheets aggregated to form a rod-shaped element, optionally wherein, when aggregated to form the rod-shaped element, the plurality of nonwoven sheets are uncurled and unpleated.
24. The material according to any one of the preceding claims, wherein, The material is in the form of a nonwoven sheet.
25. The material according to any one of the preceding claims, wherein, The material is in the form of a pleated nonwoven sheet.
26. The material according to claim 24, wherein, The material is in the form of a pleated nonwoven sheet.
27. The material according to any one of claims 24 to 26, wherein, The sheet has a width ranging from about 5 mm to about 200 mm, optionally from about 50 mm to about 200 mm, and optionally from about 50 mm to about 120 mm.
28. The material according to claim 18, wherein, The material has a content of 0.1 to 0.3 g / cm³. 3 Or 0.14 to 0.22 g / cm³ 3 The bulk density of the elongated material body.
29. The material according to claim 18 or claim 19, wherein, The elongated material body includes the plurality of fibers, which extend longitudinally from a first end of the body through the body to a second end of the body.
30. The material according to claim 18, claim 28 or claim 29, wherein, The elongated material body includes rod-shaped elements having a circumference between about 16 mm and about 25 mm, or between about 18 mm and about 23 mm.
31. The material according to any one of the preceding claims further includes a plasticizer.
32. The material according to any one of the preceding claims, wherein, Multiple regenerated cellulose fibers include at least one of viscose, lyocell, rayon, viscose rayon, cupro fiber, and modal.
33. The material according to claim 32, wherein, The multiple regenerated cellulose fibers are composed of lyocell fibers and are the only fibers included in the material.
34. The material according to claim 32, wherein, The multiple regenerated cellulose fibers are composed of viscose fibers and are the only fibers included in the material.
35. The material according to any one of the preceding claims, wherein, The material includes about 5 to about 60 wt% aerosol forming agent material based on dry weight, or between about 15 and about 50 wt% aerosol forming agent based on dry weight.
36. The material according to any one of the preceding claims, wherein, The materials include active substances and / or flavoring agents.
37. A component for use in an aerosol supply article, said component comprising the material according to any one of the preceding claims.
38. The component according to claim 37, wherein, The component is rod-shaped.
39. The component according to claim 38, wherein, The rod-shaped component has a hardness of approximately 80% or higher.
40. The component according to any one of claims 37 to 39, wherein, The component exhibits a voltage drop ranging from approximately 1 mmWG per mm component length to approximately 6.5 mmWG per mm component length.
41. The component according to any one of claims 37 to 40, wherein, The component in question is a filter section.
42. The component according to any one of claims 37 to 40, wherein, The component is the aerosol generation section.
43. An aerosol supply article comprising the component according to any one of claims 37 to 42.
44. The aerosol supply product according to claim 43, wherein, The product is used in a non-flammable aerosol supply system.
45. A method for forming a material suitable for use as a component in an aerosol supply article, the method comprising: Provides multiple fibers containing regenerated cellulose; as well as The multiple fibers are processed to provide a material suitable for use as a component in aerosol supply articles, wherein the material has a density of about 0.1 g / cm³. 3 To approximately 0.4 g / cm 3 The packing density within the range.
46. The method according to claim 45, wherein, Providing multiple fibers includes providing multiple continuous fibers in the form of a bundle, and wherein processing the multiple fibers includes aggregating the multiple fibers to form an elongated material body.
47. The method according to claim 45, wherein, Providing multiple fibers includes providing multiple fibers in the form of a sheet, and wherein processing the multiple fibers includes aggregating the sheet to form an elongated material body.