Materials for use as components of aerosol provision articles
By using regenerated cellulose fibers to prepare nonwoven sheets, the issues of biodegradability and cost efficiency of aerosol-generated filter materials have been resolved, resulting in better pressure drop and filtration performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NICOVENTURES TRADING LTD
- Filing Date
- 2024-08-01
- Publication Date
- 2026-06-02
AI Technical Summary
Existing filter materials for aerosol-generated products are inadequate in terms of biodegradability and cost efficiency, and it is difficult to achieve appropriate pressure drop and filtration performance.
Using multiple regenerated cellulose fibers as the main material, nonwoven sheets are formed by hydraulic entanglement. Combined with appropriate bulk density and monofilament denier design, components for aerosol supply products are prepared.
It improves biodegradability, reduces the environmental impact of manufacturing, enhances the cost efficiency of materials, and achieves more consistent pressure drop and filtration performance.
Smart Images

Figure CN122138765A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to materials used as components in 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 flammable puff material, such as shredded tobacco (e.g., in the form of cut filler), surrounded by a paper wrapping, thus forming a rod of atomizable material. Typically, aerosol-generating articles have a filter element aligned end-to-end with the rod of atomizable material. The filter element typically comprises a rod of plasticized cellulose acetate filaments surrounded by a paper material called plug wrap, and the filter is attached to one end of the rod of atomizable material using an external wrapping material called tipping material. Summary of the Invention
[0003] In one aspect of the invention, a material is provided for use as a component in an aerosol supply article. The material comprises a plurality of substrate sheets laminated on top of each other, wherein at least one of the plurality of substrate sheets is formed of any one of: a plurality of regenerated cellulose fibers; or paper.
[0004] In some implementations, the total weight of the plurality of substrate sheets can be in the range of 40 gsm to 90 gsm.
[0005] In some implementations, each of the plurality of substrate sheets may have the same g / m 2 The weight is calculated. In some embodiments, each of the substrate sheets may have a weight in the range of about 10 gsm to about 30 gsm.
[0006] In some embodiments, at least one of the plurality of substrate sheets may have a different weight from at least one of the plurality of substrate sheets. In some embodiments, one of the plurality of substrate sheets may have a weight in the range of about 5 gsm to about 20 gsm, and another of the substrate sheets may have a weight in the range of about 20 gsm to about 40 gsm.
[0007] In some embodiments, each of the plurality of substrate sheets may be formed of a plurality of regenerated cellulose fibers. In some embodiments, the plurality of fibers may consist of regenerated cellulose and constitute 90% to 100% by weight of the fibers contained in the material. In some embodiments, the plurality of regenerated cellulose fibers may include viscose fibers or lyocell fibers.
[0008] In some embodiments, the plurality of regenerated cellulose fibers may include at least one of viscose, lyocell, rayon, viscose rayon, cuprammonium, and modal. In some embodiments, the plurality of regenerated cellulose fibers may consist of lyocell fibers and are the only fibers contained within the material. In some embodiments, the plurality of regenerated cellulose fibers may consist of viscose fibers and are the only fibers contained within the material.
[0009] In some embodiments, the plurality of regenerated cellulose fibers of the at least one substrate sheet may be hydroentangled. In some embodiments, the plurality of regenerated cellulose fibers of the at least one substrate sheet may be wet-laid.
[0010] In some embodiments, the material further comprises an adhesive. In some embodiments, the adhesive may comprise 2% to 10% by weight of the component used in the aerosol supply article. In some embodiments, the adhesive may comprise pectin. In some embodiments, the adhesive may comprise 4% by weight of pectin of the component.
[0011] In some embodiments, the material may also contain a plasticizer.
[0012] In some embodiments, the plurality of fibers may have a density of approximately 0.1 g / cm³. 3 To approximately 0.4 g / cm 3 Bulk density within the range.
[0013] In some implementations, the multiple fibers may have a denier per filament ranging from about 1 dpf to about 30 dpf.
[0014] In some embodiments, the plurality of fibers may comprise 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. 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.
[0015] In some embodiments, the plurality of regenerated cellulose fibers may comprise 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.
[0016] In some embodiments, the plurality of regenerated cellulose fibers may be discontinuous and have a fiber length ranging from about 30 mm to about 60 mm. In some embodiments, the maximum cross-sectional dimension of each fiber may be greater than 10 μm. In some embodiments, the plurality of fibers may be crimped.
[0017] In some implementations, the material may be in the form of a sheet or an elongated body of material.
[0018] In some embodiments, the material can be in a state having a concentration of 30 to 150 g / m³. 2 30 to 120 g / m 2 Or 40 to 100 g / m 2 The material is in the form of a sheet of material with a weight of [weight missing]. In some embodiments, the material may be in the form of a sheet having a thickness of 60 to 500 µm or 150 to 350 µm. In some embodiments, the material may be in the form of a sheet with a thickness of 0.2 to 0.3 g / cm³. 3 Or 0.22 to 0.28 g / cm³ 3 Sheet form with a bulk density.
[0019] In some embodiments, the material may be in the form of a nonwoven sheet aggregated to form a rod-shaped element. In some embodiments, the nonwoven sheet may be uncurled and unpleated when aggregated to form the rod-shaped element.
[0020] In some embodiments, the material may be in the form of multiple nonwoven sheets aggregated to form a rod-shaped element. In some embodiments, the multiple nonwoven sheets may be uncurled and unpleated when aggregated to form a rod-shaped element.
[0021] 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 nonwoven sheet. In some embodiments, the nonwoven sheet may be in the form of a non-pleated and nonwoven sheet.
[0022] In some embodiments, the nonwoven sheet may have a width ranging from about 5 mm to about 200 mm, optionally from about 50 mm to about 200 mm, or optionally from about 50 mm to about 120 mm.
[0023] In some embodiments, the material may be in a state having a concentration of 0.1 to 0.3 g / cm³. 3 Or 0.14 to 0.22 g / cm³ 3 The elongated material body has a high bulk density. In some embodiments, the elongated material body may include a plurality of fibers extending longitudinally from a first end of the body through the body to a second end.
[0024] In some embodiments, the elongated material body may include rod-shaped elements having a circumference of about 16 mm to about 25 mm or about 18 mm to about 23 mm.
[0025] In some implementations, each of the plurality of substrate sheets may be formed of paper material.
[0026] In some embodiments, at least one of the plurality of substrate sheets may be formed of non-regenerated cellulose or non-paper materials. In some embodiments, at least one of the plurality of layers may be formed of sheets of amorphous solid materials, sheets of tobacco materials, sheets of regenerated botanical materials, or charcoal paper.
[0027] In some embodiments, at least one non-regenerated cellulose material or non-paper material substrate sheet may be located between the outer layers of the regenerated cellulose material or paper material substrate sheet.
[0028] In some implementations, the substrate sheet with the greatest weight can form the outer layer of the material.
[0029] In some embodiments, at least one of the plurality of substrate sheets may include an aerosol-modifying additive. In some embodiments, one or more portions of 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.
[0030] In some embodiments, the material may include about 5 wt% to about 60 wt% of aerosol-former material based on dry weight, or about 15 wt% to about 50 wt% of aerosol-former based on dry weight.
[0031] In some embodiments, the material may include active substances and / or flavorings (flavoring agents).
[0032] In another aspect of the invention, a component for an aerosol supply article is provided. The component comprises a material according to any one of claims 1 to 43.
[0033] 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.
[0034] In some implementations, the component exhibits a voltage drop ranging from about 1 mmWG per mm component length to about 6.5 mmWG per mm component length.
[0035] In some embodiments, the component may be a filter section. In some embodiments, the component may be an aerosol generation section.
[0036] In another aspect of the invention, a method for forming a component for an aerosol supply article is provided. The method includes the steps of: providing a material according to any one of items 1 to 43, and aggregating the material into a rod-shaped component. Attached Figure Description
[0037] Embodiments of the invention will now be described by way of example only with reference to the accompanying drawings, in which: Figure 1 A schematic perspective view of the material used as a component is shown; Figure 2 A schematic perspective view of a component for an aerosol supply product is shown; Figure 3 A schematic perspective view of the aerosol supply product 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 three-dimensional 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
[0038] See now Figure 1 It shows that in Figure 3 The aerosol supply product 3 shown is used as Figure 2 The material 1 of component 2 shown is provided. In one aspect of the invention, material 1 is provided comprising a plurality of fibers 5. The plurality of fibers 5 comprise fibers of regenerated cellulose. Material 1 has a content of approximately 0.1 g / cm³. 3 To approximately 0.40 g / cm 3 The packing density within the range.
[0039] The multiple regenerated cellulose fibers 5 can be discontinuous fibers. The multiple fibers can be hydroentangled.
[0040] The bulk density of multiple regenerated cellulose fibers 5 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 packaging material, aerosol generating material, aerosol modified component, or other component).
[0041] As described above, material 1 can have a content of approximately 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.
[0042] The bulk density of material 1 can be adjusted to provide a satisfactory pressure drop for the user when the material is formed into part 2 for use in article 3 or 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.
[0043] It should be understood that although the plurality of fibers 5 have been described above as containing regenerated cellulose, the plurality of fibers 5 forming material 1 may consist of or be substantially composed of regenerated cellulose fibers.
[0044] In some embodiments, the component 2 formed from the filter material 1 made of regenerated cellulose fibers 5 can be a filter component. In this sense, material 1 can be considered a filter material. In some embodiments, the component 2 formed from the material 1 made of regenerated cellulose fibers 5 can be a component different from a filter component. For example, the component 2 formed from material 1 can be included in the aerosol supply article 3 to help achieve the required pressure drop on the aerosol supply article 2.
[0045] In some embodiments, material 1 may be provided in the form of a nonwoven sheet. The nonwoven sheet may contain a plurality of discontinuous fibers 5. Material 1 may be aggregated into any desired form to form component 2. Component 2 may form a filter section and / or an aerosol-generating section of article 3, the aerosol-generating section being configured to be heated to release aerosols via, for example, an aerosol-generating device. A plurality of regenerated cellulose fibers 5 may advantageously provide increased biodegradability compared to fiber types typically used for filter sections of, for example, conventional cigarettes (e.g., cellulose acetate).
[0046] The plurality of regenerated cellulose fibers 5 may be the only fiber type present in material 1. That is, the plurality of fibers 5 in material 1 may consist of regenerated cellulose fibers. As used herein, the term "fiber" may be defined as a basic 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 ropes or rope-like elements. The term "fiber" is intended to include fibers, filaments, etc.
[0047] Regenerated cellulose can be considered a class of materials manufactured by converting natural cellulose into soluble cellulose derivatives or by directly dissolving cellulose slurry and subsequently 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 by directly dissolving cellulose slurry and subsequently regenerating it in fiber form. The main difference between regenerated cellulose fibers and known materials used in filter tips (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.
[0048] Regenerated cellulose fibers are typically prepared by extracting non-cellulose compounds 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 a high-purity cellulose pulp using NMMO. The solution is then passed through a spinneret to produce viscous threads of regenerated fibers. The method of preparing regenerated cellulose is not considered to limit the scope of the invention. The various regenerated cellulose fibers 5 can be, for example, but not limited to, viscose, lyocell, rayon, viscose rayon, copper wire, and modal.
[0049] In some embodiments, the plurality of fibers 5 may be composed of regenerated cellulose. In some embodiments, the plurality of fibers 5 may account for 90% to 100% by weight of the fibers contained in the material.
[0050] In some embodiments, the plurality of regenerated cellulose fibers 5 are composed of lyocell fibers and are the only fibers contained within material 1. In some embodiments, the plurality of regenerated cellulose fibers 5 are composed of viscose fibers and are the only fibers contained within material 1.
[0051] The denier of the multiple regenerated cellulose fibers 5 can range from 1 to 30 denier (dpf). Denier, or denier / fiber, is a measure of the weight per unit length of a single filament of a fiber. The denier of regenerated cellulose fibers is expressed in grams per 9000 meters. The denier can be manipulated or selected to achieve a desired pressure drop on material 1 or on a component 2 formed from material 1 (such as a filter element formed from multiple regenerated cellulose fibers 5).
[0052] In some embodiments, the denier of the plurality of regenerated cellulose fibers 5 can be in the range of about 1 dpf to about 20 dpf. In some embodiments, the denier of the plurality of regenerated cellulose fibers 5 can be in the range of about 1 dpf to about 10 dpf.
[0053] In some embodiments, the denier of the plurality of regenerated cellulose fibers 5 can range from about 1 dpf to about 8 dpf, or from about 1 dpf to about 6 dpf, or from about 1 dpf to about 5 dpf, or from about 1 dpf to about 4 dpf, or from about 1 dpf to about 3 dpf. In some embodiments, the denier of the plurality of regenerated cellulose fibers 5 can range from about 1.5 dpf to about 10 dpf, or from about 1.5 dpf to about 6 dpf, or from about 1.5 dpf to about 5 dpf, or from about 1.5 dpf to about 4 dpf, or from about 1.5 dpf to about 3 dpf.
[0054] 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 monofilament 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 monofilament denier in the range of about 1 dpf to about 10 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 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.
[0056] 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 about 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.
[0057] In some embodiments, 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 5 dpf, about 1 dpf to about 4 dpf, about 1 dpf to about 3 dpf, or about 1 dpf to about 2 dpf.
[0058] In some embodiments, the ratio of the first plurality of regenerated cellulose fibers to the second plurality of regenerated cellulose fibers can 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 ranging from about 60% to about 90% by weight and a second plurality of regenerated cellulose fibers ranging from 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.
[0059] In some embodiments, the plurality of regenerated cellulose fibers 5 may comprise more than two types of fibers with different denier numbers. In some embodiments, the plurality of regenerated cellulose fibers 5 may include a first plurality of regenerated cellulose fibers having a denier number of about 5 dpf to about 10 dpf, a second plurality of regenerated cellulose fibers having a denier number of about 2 dpf to about 5 dpf, and a third plurality of regenerated cellulose fibers having a denier number of less than about 2 dpf.
[0060] The first plurality of regenerated cellulose fibers 5 may constitute about 30% to about 60% of material 1 by weight. The second plurality of regenerated cellulose fibers 5 may constitute about 25% to about 30% of material 1 by weight. The third plurality of regenerated cellulose fibers 5 may constitute about 5% to 20% of material 1 by weight.
[0061] For example, in one embodiment, the plurality of regenerated cellulose fibers 5 may comprise a first plurality of regenerated cellulose fibers having a monofilament denier of about 5.4 dpf, a second plurality of regenerated cellulose fibers having a monofilament denier of about 2.7 dpf, and a third plurality of regenerated cellulose fibers having a monofilament denier of about 1.4 dpf. The three types of regenerated cellulose fibers may be present in a ratio of 40:40:20 by weight.
[0062] In another embodiment, the plurality of regenerated cellulose fibers 5 may comprise a first plurality of regenerated cellulose fibers having a monofilament denier of about 5.4 dpf and a second plurality of regenerated cellulose fibers having a monofilament denier of about 2.7 dpf. The two types of regenerated cellulose fibers may be present in a ratio of 40:60 by weight.
[0063] In another embodiment, the plurality of regenerated cellulose fibers 5 may comprise a first plurality of regenerated cellulose fibers having a monofilament denier of about 5.4 dpf, a second plurality of regenerated cellulose fibers having a monofilament denier of about 2.7 dpf, and a third plurality of regenerated cellulose fibers having a monofilament denier of about 1.4 dpf. The three types of regenerated cellulose fibers may be present in a ratio of 60:30:10 by weight.
[0064] It has been found that combinations of first and second, and optionally additional, regenerated cellulose fibers with different monofilament deniers improve the tensile strength of the material, which in turn improves the operability of material 1 in manufacturing equipment such as filter manufacturing machines. Furthermore, combinations of first and second regenerated cellulose fibers with different monofilament deniers allow for adjustment of filtration efficiency and pressure drop on the component 2 formed from material 1, as well as the stiffness and elasticity of the nonwoven material.
[0065] By adjusting the stiffness and elasticity of material 1, the variability of material 1 can be reduced, allowing material 1 to aggregate in a more consistent manner, which in turn provides a more consistent pressure drop on the component 2 formed from material 1. The greater flexibility associated with hydraulically entangled regenerated cellulose materials results in a lower porosity fraction in components formed from said hydraulically entangled regenerated cellulose materials. Generally, the greater the material stiffness, the greater the porosity fraction.
[0066] The void fraction can be considered as the amount of space between materials when they are aggregated into a component, compared to the cross-sectional area of the component. The void fraction of a material when aggregated into a component can range from about 5% to about 30%, depending on the fiber's dpf (dextrous fiber fraction).
[0067] For a dpf range of approximately 1 to approximately 5 dpf, the void fraction can range from approximately 5% to approximately 10%. For a dpf range of approximately 15 to approximately 25 dpf, the void fraction can range from approximately 20% to approximately 30%.
[0068] In some embodiments, the plurality of regenerated cellulose fibers 5 may be staple fibers. That is, the plurality of regenerated cellulose fibers 5 may be discontinuous. In other words, when the fibers are formed, they may be formed as discrete fibers of a specific length. This is in contrast to the formation of a tow used in a delivery system, which is manufactured into long, continuous fibers through a stretching process. In some embodiments, the length of the plurality of regenerated cellulose staple fibers 5 may be in the range of about 30 mm to about 60 mm. The length of the regenerated cellulose staple fibers may be considered as the extended length or pre-crimped length of the regenerated cellulose fibers.
[0069] In some embodiments, the cross-sectional shape of the fibers in the direction perpendicular to their length may be generally circular. In such embodiments, the diameter of each of the plurality of regenerated cellulose fibers 5 may 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 where the material 1 is used in an article having a fine filter material section, said fine filter material section is located downstream of the section formed by the material 1, and the diameter of at least some or each of the plurality of regenerated cellulose fibers 5 may be less than 10 μm.
[0070] In some embodiments, the cross-section of each of the plurality of regenerated cellulose fibers 5 may be a shape other than generally 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 periphery of the shape can be greater than 10 μm.
[0071] In some embodiments, the plurality of 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.
[0072] In some embodiments, material 1 may be provided in the form of a sheet or an elongated body of 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 constant. Sheet form materials can have a thickness of 60 to 500 µm or 150 to 350 µm.
[0073] 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, pad, or sheet in which a plurality of regenerated cellulose fibers are arranged in an undefined or random orientation.
[0074] To form material 1, multiple nonwoven regenerated cellulose fibers initially exist as unbonded fibers or filaments. These fibers or filaments can then be bonded together.
[0075] In this embodiment, a material 1 in the form of multiple nonwoven regenerated cellulose fibers 5 can be produced by hydraulically entangled multiple regenerated cellulose fibers 5. The multiple regenerated cellulose fibers 5 can be hydraulically entangled to produce a material 1 with the desired physical properties.
[0076] 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 a plurality of fibers comprising regenerated cellulose, hydroentangled 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 nonwoven material formed from hydroentangled fibers has the advantage of lower stiffness than other nonwoven materials. This makes it easier for the material to aggregate into rod-shaped components, and thus the resulting component exhibits less and smaller porosity.
[0077] Material 1 comprising multiple nonwoven regenerated cellulose fibers 5 can be processed to provide material 1 suitable for component 2 of aerosol supply articles 3 (e.g., but not limited to filter components of consumable articles). For example, a nonwoven fiber 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.
[0078] The rod-shaped component 2 can then be wrapped with a covering material to form a continuous rod, which can be used as component 2 in an aerosol supply article 3, such as a filter element. The width of the sheet material 1 can vary. Typically, the width of the material sheet 1 is such that it can be pleated to form component 2.
[0079] The total width of the material sheet 1 used to form component 2 can depend on a number of factors, such as the thickness of the material sheet 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 fiber web preforming device relative to the material sheet 1, and other such factors.
[0080] In some embodiments, the nonwoven sheet material 1 may have a width ranging from about 5 mm to about 200 mm. In some embodiments, the nonwoven sheet material 1 may have a width ranging from about 50 mm to about 200 mm. In some embodiments, the nonwoven sheet material 1 may have a width ranging from about 50 mm to about 120 mm. In some embodiments, the nonwoven sheet material 1 may have a width ranging from about 60 mm to about 80 mm.
[0081] In some embodiments, the nonwoven sheet material 1 may include at least one slit. In some embodiments, the nonwoven sheet material 1 may include multiple slits. At least one slit may extend longitudinally through the material 1. It is not intended to be theoretically rigid, but it is thought that when the material 1 aggregates, the slit allows the material 1 to align more consistently and uniformly within the component 2, which improves the pressure drop across the component 2. The slits in the sheet of material 1 allow the material 1 to expand or 'bloom,' providing enhanced filtration performance.
[0082] In some embodiments, the nonwoven sheet material 1 may undergo a curling step. Curling can be considered as a parameter referring to the texture or waviness of a single regenerated cellulose fiber 5, or as a parameter referring to the texture or waviness of the nonwoven sheet 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 material 1.
[0083] In some embodiments, curling the nonwoven sheet material 1 may involve passing the nonwoven sheet material 1 through one or more curling and / or embossing rollers configured to curl the nonwoven sheet material 1, thereby providing a curled nonwoven sheet material 1. Typically, the nonwoven sheet material 1 is passed through curling and / or embossing rollers having a specific depth to achieve a desired curl amplitude or depth on the curled nonwoven sheet material 1. That is, the curling and / or embossing rollers may include features having a specific amplitude or depth configured to achieve a desired curl amplitude or depth on the curled nonwoven sheet material 1.
[0084] In some embodiments, the curling roller may be an electropolishing curling roller. It has been found that electropolishing curling rollers allow the sheet of material 1 to curl to a greater depth while causing less damage to multiple regenerated cellulose fibers.
[0085] 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 cause a reduction in the realized 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.
[0086] Alternatively, or in addition to the features and parameters described above, several other features may be used to characterize the nonwoven sheet material 1 formed from a plurality of regenerated cellulose fibers 5. One of these features is the basis weight. In some embodiments, the basis weight of the nonwoven sheet material 1 may be approximately 30 g / m³. 2 Approximately 120 g / m 2 Within a certain range. In some embodiments, the basis weight of the nonwoven sheet material 1 can be approximately 50 g / m². 2 Approximately 90 g / m 2 Within a certain range. In some embodiments, the basis weight of the nonwoven sheet 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 The thickness of the nonwoven sheet material 1 is within the range of approximately 0.01 mil (0.00025 mm) to approximately 4 mil (0.1 mm), or approximately 0.01 mil (0.00025 mm) to approximately 1 mil (0.025 mm), or approximately 0.01 mil (0.00025 mm) to approximately 0.5 mil (0.127 mm).
[0087] In some embodiments, the nonwoven sheet material 1 formed from a plurality of regenerated cellulose fibers 5 can be thin and can have relatively high tensile strength, high elasticity, and relatively good flexibility. In some embodiments, it is desirable that the nonwoven sheet material 1 remain folded without tearing, breaking, or otherwise fracturing during folding, rolling, or pleating processes.
[0088] In some embodiments, material 1 may be in a state having a concentration of 0.1 to 0.3 g / cm³.3 Or 0.14 to 0.22 g / cm³ 3 The elongated material body is in the form of a bulk density of slender material. In some embodiments, the elongated material body may include a plurality of fibers extending longitudinally from a first end of the body through the body to a second end. In some embodiments, the elongated material body may include rod-shaped elements having a circumference of about 16 mm to about 25 mm or about 18 mm to about 23 mm.
[0089] 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 continuous fibers (also called filaments) of 3 dpf. 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 include a halogen-free spinning finishing oil (spinning oil).
[0090] 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 bundled form.
[0091] In some embodiments, additives may be applied to the nonwoven sheet material 1 before, during, or after its formation. In some embodiments, additives may be added to the pleated nonwoven sheet material 1 during component formation to provide desired sensory characteristics and / or improve aerosol chemistry. In some embodiments, the additives may include triacetin and / or Carbowax, which may be applied to the nonwoven sheet material 1 in conventional amounts using known techniques. The additives may be plasticizers.
[0092] In some embodiments, the additive may be applied to the nonwoven sheet material 1 in an amount of about 0.1% to about 20% by weight, based on the total weight of the nonwoven sheet material 1. In some embodiments, the additive may be applied to the nonwoven sheet material 1 in an amount of about 3% to about 15% or about 6% to about 12% by weight, based on the total weight of the nonwoven sheet material 1. For example, the additive may be applied to the nonwoven sheet 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 material 1.
[0093] See brief Figure 2 The diagram illustrates a component 2 formed from the material 1 of the present invention. As previously described, the component 2 formed from the nonwoven sheet material 1, which is composed of a plurality of regenerated cellulose fibers 5, can be a filter component. Therefore, the 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 comprising the component 2 formed from the material 1 can be manufactured using conventional methods and techniques, wherein the material 1 comprises a plurality of nonwoven regenerated cellulose fibers 5.
[0094] 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.
[0095] 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.
[0096] Figure 2 and Figure 3 The component 2 shown, formed of material 1 comprising a plurality of 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.
[0097] 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.
[0098] Furthermore, the component 2 formed from the material 1 comprising a plurality of 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 may include filter rod forming paper or other wrapping material surrounding the material 1 having a basis weight of 60 gsm or higher. A component surrounded by a wrapping material having a basis weight of 60 gsm or higher contributes to increasing the stiffness of the component.
[0099] The hardness of this component can be measured using the following method. When the hardness of a section is mentioned herein, it refers to the hardness determined by the following measurement procedure. Any suitable apparatus can be used to perform the measurement, for example, the Borgwaldt H10 hardness tester.
[0100] Hardness is defined as the ratio between the height h0 of the body and the height h1 of the body under a limited 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-segment bar, hardness measurements are taken at the longitudinal center point of the body or the multi-segment bar (as specified).
[0101] A load bar is used to apply a defined load to the sample. The length of the load bar should be significantly longer than the length of the sample being tested. Before hardness measurement, the sample to be measured should be conditioned for at least 48 hours according to ISO 3402:2023 and maintained under ambient conditions according to ISO 3402:2023 during the measurement.
[0102] To perform hardness measurement, the sample was placed in a hardness tester H10, and a preload of 2 g was applied. After 1 second, the initial height h0 of the sample under the 2 g preload was recorded. 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 seconds, the height h1 of the sample under the 150 g load was measured.
[0103] The hardness of the component was determined as the average hardness of at least 20 components measured according to the scheme.
[0104] For reference, the implementation of component 2 described below is given as an example only. Refer to component 2 in the following example for a base rod of a given length. This base rod component can be cut into smaller segments and used in or as a filter in a product.
[0105] In one example, component 2 can be formed from a nonwoven sheet of a hydroentangled material. Component 2 can also be formed from a sheet of material 1 comprising a plurality of 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 also be formed from a sheet of material with a width in the range of about 70 mm to about 90 mm.
[0106] Component 2, formed from a sheet of material weighing 60 gsm, can have a length in the range of about 75 mm to 85 mm. The component can have a length of about 80 mm and a circumference of about 20 mm to about 21 mm. Component 2 can have a weight in the range of about 0.44 g to about 0.58 g. The component can have a weight in the range of about 0.45 g to about 0.51 g. The pressure drop on component 2 can be in the range of about 200 mmWG to about 375 mmWG. The pressure drop on the component can be in the range of about 210 mmWG to about 300 mmWG. The component can have a hardness in the range of greater than 80%. The component can have a hardness in the range of 83% to 88%. Component 2 can be wrapped with filter rod forming paper weighing 60 gsm.
[0107] Component 2, formed from a sheet of material weighing 50 gsm, can have a length in the range of about 75 mm to 85 mm. Component 2 can have a length of about 80 mm and a circumference of about 20 mm to about 21 mm. Component 2 can have a weight in the range of about 0.39 g to about 0.47 g. Component 2 can have a weight in the range of about 0.42 g to about 0.45 g. The pressure drop on component 2 can be in the range of about 150 mmWG to about 240 mmWG. The pressure drop on the component can be in the range of about 170 mmWG to about 210 mmWG. The component can have a hardness in the range of greater than 80%. Component 2 can be wrapped with filter rod forming paper weighing 60 gsm.
[0108] The described base rod component can be cut into 8 segments, such that each segment in the filter portion of the article, or used as a filter portion 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 on the 10 mm component 2 can be in the range of approximately 42 mmWG to approximately 55 mmWG.
[0109] In one example, component 2 can be formed from a hydroentangled nonwoven sheet material 1. Component 2 can be formed from a sheet of material 1 containing a plurality of regenerated cellulose fibers 5 having a dpf (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 a plurality of 3 dpf regenerated cellulose fibers. 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.
[0110] Component 2 can have a length ranging from about 105 mm to 110 mm. The component can have a length of about 108 mm. Component 2 can have a weight ranging from about 0.94 g to about 1.05 g. The component can have a weight ranging from 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 ranging from about 250 mmWG to about 310 mmWG. The pressure drop on component 2 can be ranging from about 265 mmWG to about 295 mmWG. Component 2 can have a hardness ranging from about 86% to about 93%. Component 2 can have a hardness ranging from about 88% to about 92%. Component 2 can be cut into 4 segments, each about 27 mm long, which can be used in or as a filter portion of an article. Therefore, the parameters given above can be divided by 4 to achieve the parameters of a single segment component.
[0111] Now 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 substantially flat.
[0112] The aerosol supply article 10 includes a generally cylindrical rod 12. The generally cylindrical rod 12 includes aerosol generating material 13. The aerosol generating material 13 can be provided as a feed or roller for the 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.
[0113] The rod 12 of the aerosol generating material 13 may be contained within an external encapsulating material 14. The ends of the rod 12 may be open to expose the aerosol generating material 13.
[0114] A distal end 18 is positioned 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).
[0115] A proximal end 19 is positioned 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.
[0116] 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 externally attached to an external filter rod forming paper 24 along its outer circumference or longitudinal periphery 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.
[0117] The aerosol supply article 10 may also include a tipping wrapper 25. The tipping wrapper 25 may surround at least a portion of the outer circumference of the outer filter rod 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 tipping wrapper 25 may be configured to attach the filter element 22 to the rod 12 of the aerosol generating material 13.
[0118] The tipping material 25 may be airtight. In some embodiments, the tipping material 25 may 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 tipping material 25 may be securely attached to the outer surface of the filter rod 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 may be used to securely attach the tipping material 25 to the filter rod forming paper 24 and the wrapping material 14. Thus, the filter element 22 and the rod 12 of the aerosol generating material 13 may be connected to each other to form the aerosol supply article 10.
[0119] 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 tipping packaging material 25 and the wrapping 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, but not limited to, using porous paper filter rod forming paper and / or pre-perforated assembly packaging materials.
[0120] 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 between the volume of air drawn in through the air dilution device 26 and the total volume of air and aerosol drawn in and exiting the extreme nozzle of the aerosol supply article 10.
[0121] The filter element 22 may include a nozzle tip 29. The nozzle tip 29 may be the end of the aerosol supply article 10. The nozzle tip 29 may be configured to be placed in a user's mouth for the user to inhale during use.
[0122] It should be understood that the foregoing and description of the aerosol supply article 10 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.
[0123] In some embodiments, the aerosol supply articles and / or aerosol supply systems of the present invention can provide many of the sensations of conventional cigarettes without any substantial degree of combustion of any of their components. The sensations provided may include inhalation and exhalation actions, type of taste or aroma, sensory effects, physical sensations, actions of use, visual stimuli (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 component 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 inhale at selected time intervals or inhale once.
[0124] See now 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 previously described. Various 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.
[0125] In various embodiments, the aerosol supply device 30 can have a variety of overall shapes, including, for example, but not limited to, overall shapes that can be defined as substantially rod-shaped, substantially tubular, or substantially cylindrical, such as... Figure 5 As shown in the image. That is, Figure 5 The aerosol supply device 30 shown has a substantially 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 substantially rectangular shape, such as a substantially 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 mod shapes, or a keychain (FOB) shape.
[0126] The alignment of the aerosol supply article 10 within the aerosol supply device 30 can be varied. In some embodiments, the base 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 such that heat from the heat source causes the aerosol generating material 13, as well as 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 base portion, the aerosol is formed, released, or generated in a physical form suitable for inhalation by the consumer.
[0127] The aerosol supply device 30 may include a battery and / or other power source to provide sufficient current to power various functions of the aerosol delivery device, such as powering a heat source, a control system, indicators, etc., as described in more detail below. In some embodiments, the power source may be able to deliver sufficient power to rapidly activate the heat source to provide aerosol formation and to power the aerosol supply device 30 for a sustained desired duration. In some embodiments, the power source may be designed to be conveniently housed within the body 32 of the aerosol supply device 30, making the aerosol supply device 30 easily handleable. The power source may be a replaceable or rechargeable battery, a solid-state battery, a thin-film solid-state battery, or a rechargeable supercapacitor, etc., and may be combined with any suitable type of recharging technology.
[0128] The aerosol supply article 10 may include a heating section 16. The heating section 16 may typically be a segment of the aerosol supply article 20, including a rod 12 of the aerosol generating material 13 or at least a portion thereof. The heating section 16 may be configured to be inserted into the body 32 of the aerosol supply device 30.
[0129] 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 a plurality of nonwoven regenerated cellulose fibers 5.
[0130] In one aspect of the invention, as follows is provided Figure 1 Material 1 shown is used as follows: Figure 3 The aerosol supply product 3 shown is as follows Figure 2 The component shown. Material 1 comprises multiple fibers 5 containing regenerated cellulose and an adhesive. This material has a content of approximately 0.1 g / cm³. 3 To approximately 0.4 g / cm 3 The packing density within the range.
[0131] The plurality of fibers 5 may be discontinuous. The plurality of fibers may have a fiber length ranging from about 10 mm to about 60 mm. The plurality of fibers may be wet-laid. In some embodiments, the plurality of fibers may be air-laid. An adhesive 6 may be configured to bond the plurality of fibers 5 together. The plurality of 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 multiple regenerated cellulose fibers is approximately 0.15 g / cm³. 3 To approximately 0.25 g / cm 3 The bulk density. The denier of the single filaments of the plurality of regenerated cellulose fibers 5 can be about 1 dpf and about 10 dpf.
[0132] The material 1 and the component 2 formed from the present aspect of the invention are similar to the component 2 of the previously described aspects, 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.
[0133] Nonwoven sheet 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 is not limited to a single process used for manufacturing.
[0134] Multiple fibers 5 can be wet-laid. As used herein, the term "wet-laid" generally refers to a method of producing a fiber 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 over a conveyor belt or perforated cylinder. Adhesives can be introduced to achieve desired final properties in the wet-laid nonwoven sheet material 1.
[0135] 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.
[0136] When material 1 is formed into component 2 or article 3, the bulk density of multiple regenerated cellulose fibers 5 can be calculated without considering any other characteristics of material 1, component 2 or article 3.
[0137] As described above, the multiple regenerated cellulose material fibers 5 can have approximately 0.10 g / cm³. 3 To approximately 0.40 g / cm 3 The bulk density is within a certain range. In some embodiments, the plurality of regenerated cellulose material fibers 5 may have a bulk density of about 0.12 g / cm³. 3 Approximately 0.30 g / cm³ 3 The bulk density is within a certain range. In some embodiments, the plurality of regenerated cellulose material fibers 5 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.
[0138] The bulk density of material 1 can be adjusted to provide a satisfactory pressure drop for the user when the material is formed into part 2 for use in article 3 or in article 3. In addition, the reduction of the bulk density of material 1 improves cost efficiency and material use, and thus reduces the manufacturing impact on the environment.
[0139] It should be understood that although the plurality of fibers 5 have been previously described as containing regenerated cellulose, the plurality of fibers 5 forming material 1 may be composed of or substantially composed of regenerated cellulose.
[0140] 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 treatments, or other materials applied thereto 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.
[0141] In some embodiments, other materials applied to or incorporated into material 1 may be applied in liquid form. These other materials may include substances such as, but not limited to, glyceryl triacetate, Carbowax, flavor compounds, propylene glycol, triethyl citrate, or any other suitable substance. Furthermore, the coatings, fillers, or other components applied to material 1 may contribute functionality or properties to component 2 formed from material 1. For example, the coatings, fillers, or other components may contribute to aerosol filtration, improved aerosol flavor, water dispersibility, biodegradability, and / or compostability.
[0142] In some embodiments, adhesive 6 may be applied to the nonwoven sheet material 1 before, during, or after its forming. In some embodiments, adhesive may be added to the pleated nonwoven sheet of material 1 during part forming to provide desired sensory characteristics and / or improve aerosol chemistry. The adhesive (which may contain pectin in some embodiments) may be applied to the nonwoven sheet material 1 in conventional amounts using known techniques.
[0143] In some embodiments, the adhesive may be applied to the nonwoven sheet material 1 in an amount from about 0.1% to about 30% by weight, based on the total weight of the nonwoven sheet material 1. In some embodiments, the adhesive may be applied to the nonwoven sheet 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 excessive adhesive makes the material too stiff and difficult to handle on manufacturing equipment.
[0144] In some embodiments, the adhesive may be applied to the nonwoven sheet material 1 in an amount of about 3% to about 15% or about 6% to about 12% by weight. For example, the adhesive may be applied to the nonwoven sheet 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 material 1.
[0145] 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 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.
[0146] 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 from 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.
[0147] Component 2 of the present aspect of the invention is similar to component 2 of the previously described aspect, and therefore its 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 aforementioned component 2 can be incorporated into component 2 of this aspect, and vice versa.
[0148] Aerosol forming agent materials may include one or more components capable of forming aerosols. In some embodiments, the aerosol forming agent material may comprise one or more of glycerol, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butanediol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl caprylate, triethyl citrate, triacetin, a mixture of diacetins, benzyl benzoate, benzylphenyl acetate, glyceryl tartrate, 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 mono-, di-, or triacetins; and / or aliphatic esters of monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Not wanting to be bound by theory, it is believed that including triacetin in this component promotes better nicotine transfer from component 2 to the user during use.
[0149] Aerosol forming agents can contain acids. Without being bound by theory, it is believed that the inclusion of acids reduces the perceived harshness of the generated aerosols.
[0150] 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, 13% to 16% by weight of the composition, or about 14% or 15% by weight of the composition. Propylene glycol, if present, may be present in an amount of 0.1% to 0.3% by weight of the composition.
[0151] Aerosol forming material may be included in any component 2 formed of material 1 comprising a plurality of regenerated cellulose fibers 5, such as any filter tip component and / or any filter rod component, and / or any aerosol generating section that may be configured to be heated (if present). In either case, the total amount of aerosol forming material in material 1 may be as defined herein.
[0152] 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).
[0153] In some embodiments, the amorphous solid comprises: 1-60 wt% of a gelling agent; 0.1-50 wt% of an aerosol forming agent; and 0.1-80 wt% of a fragrance; wherein these weights are calculated based on dry weight.
[0154] In some other embodiments, the amorphous solid comprises: 1-50 wt% of a gelling agent; 0.1-50 wt% of an aerosol forming agent; and 30-60 wt% of a fragrance; wherein these weights are calculated based on dry weight.
[0155] In some embodiments, the aerosol forming agent material may form 60% by weight of the material. For example, a component formed from lyocell fibers and configured for heating may include up to about 60% by weight of propylene glycerol or vegetable glycerol or a combination of propylene glycerol and vegetable glycerol.
[0156] In some embodiments, the component may include nicotine. The component may contain up to 5% nicotine neutralized by benzoic acid in a 1:1 ratio. In some embodiments, a combination of levulinic acid and benzoic acid may be used.
[0157] In some further embodiments, the amorphous solid comprises: an aerosol forming agent material comprising about 40-80 wt% of the amorphous solid; a gelling agent and optional filler (i.e., in some instances, the filler is present in the amorphous solid, and in other instances, the filler is not present in the amorphous solid), wherein the combined amount of the gelling agent and filler is about 10 to 60 wt% of the amorphous solid (i.e., the combined amount of the gelling agent and filler is about 10 to 60 wt% of the amorphous solid); and optionally, an active substance and / or a flavoring agent comprising up to about 20 wt% of the amorphous solid (i.e., the amorphous solid contains ≤ 20 wt% active substance).
[0158] Amorphous solid materials can be formed from dried gels. It has been found that using the component ratios discussed above means that the fragrance compounds are stable within the gel matrix as the gel solidifies, allowing for higher fragrance loadings than in non-gel compositions. Fragrance agents (e.g., menthol) are stable at high concentrations, and the product has a good shelf life.
[0159] 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.
[0160] If the amorphous solid is too thick, heating efficiency is compromised. This adversely affects 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.
[0161] Suitably, the amorphous solid may comprise 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 solid may comprise 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.
[0162] The amorphous solid may include a gelling agent. The gelling agent may include one or more compounds selected from cellulose gelling agents, non-cellulose gelling agents, guar gum, gum arabic, and mixtures thereof.
[0163] 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 setting 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.
[0164] The cellulose gelling agent 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.
[0165] 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.
[0166] 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, pectin, carrageenan, starch, alginate, and combinations thereof. In a preferred embodiment, the non-cellulose-based gelling agent is alginate or agar.
[0167] In some embodiments, the amorphous solid comprises alginate and pectin, and the ratio of alginate to pectin is from 1:1 to 10:1. The alginate to pectin ratio is typically >1:1, meaning that the amount of alginate present is greater than the amount of pectin. In examples, the alginate to pectin ratio is about 2:1 to 8:1, or about 3:1 to 6:1, or about 4:1.
[0168] In some embodiments, the amorphous solid comprises filler in an amount from 1 to 30 wt% of the amorphous solid, for example, 5 to 25 wt% or 10 to 20 wt%. In examples, the amorphous solid comprises filler in an amount greater than 1 wt%, 5 wt%, or 8 wt% of the amorphous solid. In examples, the amorphous solid comprises 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.
[0169] In examples, the amount of the amorphous solid comprising the gelling agent and filler together starts from about 10 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt%, or about 60 wt%. In examples, the amount of the gelling agent and filler together is no more than 85 wt%, 80 wt%, 75 wt%, 70 wt%, 65 wt%, or no more than 60 wt% of the amorphous solid. In examples, the amount of the amorphous solid comprising the gelling agent and filler together is about 20 wt% to 60 wt%, 25 wt% to 55 wt%, 30 wt% to 50 wt%, or 35 wt% to 45 wt% of the amorphous solid.
[0170] The packing material (if present) may include 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 include 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, for example, chalk.
[0171] In some instances where fillers are included, the fillers can be fibrous. For example, the fillers can be fibrous organic fillers, 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.
[0172] In some embodiments, the amorphous solid does not contain tobacco fibers. In specific instances, the amorphous solid does not include fibrous materials.
[0173] In some embodiments, the amorphous solid may comprise 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 solid may contain 0.5-40 wt%, 3-35 wt%, or 10-25 wt% of aerosol forming agent material.
[0174] Aerosol forming agents can be used as plasticizers. If the plasticizer content is too high, the amorphous solids can absorb water, resulting in an unsuitable consumption experience during material use. If the plasticizer content is too low, the amorphous solids can be brittle and easily break.
[0175] 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 mono-, di- or triacetic acid glycerides; and / or aliphatic esters of monocarboxylic acids, dicarboxylic acids or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate.
[0176] In some cases, aerosol-forming materials include one or more compounds selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol, and xylitol. The inclusion of triacetin can reduce the perceived bitterness of the resulting aerosol. In some cases, aerosol-forming materials contain glycerol, are substantially composed of glycerol, or are composed of glycerol.
[0177] The amorphous solid material may include flame-retardant salts. Flame-retardant salts as used herein are compounds composed of ionic moieties of cations and anions. The salts used herein are those whose anions and / or their cations can effectively delay combustion. In some embodiments, the salt is an inorganic salt.
[0178] 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 delay combustion.
[0179] 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.
[0180] In some embodiments, the salt can be an alkali metal halide, such as sodium chloride or potassium chloride. The salt can also be an alkaline earth metal halide, such as magnesium chloride or calcium chloride. Alternatively, the salt can be another metal halide, such as zinc chloride or sodium bromide.
[0181] In some embodiments, the salt has a carboxylic acid anion. For example, the salt may 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.
[0182] In other embodiments, the salt has anions selected from the following: borate, carbonate, phosphate, sulfate, or aminosulfonate.
[0183] Factors that may influence salt selection 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 selected 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.
[0184] 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 distribution in the amorphous solid material or precursor material relative to the amorphous solid material, density or other properties known in the art.
[0185] In some embodiments, the flame retardant salt comprises sodium chloride, potassium chloride, sodium bromide and / or potassium bromide, and is substantially composed of sodium chloride, potassium chloride, sodium bromide and / or potassium bromide, or is composed of sodium chloride, potassium chloride, sodium bromide and / or potassium bromide.
[0186] Depending on the desired flame retardant or other physical properties, the components of the salt can be in the form of a free alkali, a salt, or as a complex or a solvate. The flame retardant salt can have any density and any crystal structure.
[0187] 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. The solvent or liquid carrier may be aqueous or organic, and may be polar or non-polar, depending on its suitable application.
[0188] The liquid carrier or 36 precursor solvent can be advantageously selected to be easily removed during the manufacture of the flame retardant material so as to leave the flame retardant salt in or on the amorphous solid material.
[0189] In some embodiments, the liquid carrier is a mixture of liquids, including aqueous liquids (water) and non-aqueous liquids (e.g., glycerol). When the water is removed after salt application, the glycerol will remain in the amorphous solid material, where it provides flexibility and facilitates aerosol formation upon heating.
[0190] In some embodiments, the described component 2 can be used for aerosol supply articles, and in some cases, typically as follows: Figure 3 The non-flammable aerosol supply article 3 is 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 and components 2. Component 2 includes multiple fibers 5 formed from regenerated cellulose and approximately 5% to approximately 60% aerosol forming agent material.
[0191] 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, for example, be selected from nutritional supplements, nootropics, and psychoactive agents. The active substance may be naturally occurring or synthetically obtained. The active substance may include, for example, nicotine, caffeine, taurine, theophylline, 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 another plant. In some embodiments, the active substance is a legally permissible recreational drug. In some embodiments, the active substance includes nicotine. In some embodiments, the active substance includes caffeine, melatonin, or vitamin B12.
[0192] In some embodiments, the active substance may include or be derived from one or more plants or their components, derivatives, or extracts. The term "plant" includes any material derived from a plant, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, skins, shells, etc. Alternatively, the material may include naturally occurring or synthetically obtained active compounds found in plants. The material may be in the form of a liquid, gas, solid, powder, dust, crushed particles, pellets, beads, fragments, strips, flakes, etc. Examples of such plants can be found in the list disclosed below.
[0193] In some implementations, the substance to be delivered may include a fragrance. Examples of such fragrances can be found in the list outlined below.
[0194] It should be understood that in some embodiments, when heated during use, the active substances or materials in material 1 can form aerosols, and therefore can be considered as aerosol forming agent materials.
[0195] See now Figure 6 A perspective sectional view of the component. In one aspect of the invention, a component 2 for an aerosol supply article 3 is provided, 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, which includes a plurality of regenerated cellulose fibers 5. The component also includes an aerosol modifier release component 40. The aerosol modifier release component 40 may be surrounded by a plurality of regenerated cellulose fibers 5.
[0196] Figure 6 The component 2 of the present 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 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 component 2 can be incorporated into component 2 of this aspect, and vice versa.
[0197] The aerosol modifier release component 40 can be disposed within the body of the material 1 within the component 2. In this embodiment, the aerosol modifier release component 40 can be in the form of an additive release component in the form of a capsule 41. In embodiments where a capsule 41 is provided, the filter rod forming paper 24 can include oil-resistant filter rod forming paper. However, in other embodiments, the aerosol modifier release component 40 can be provided in other forms, such as material injected into the body of the material 1 of the component 2, or material disposed on a line (e.g., a line carrying a fragrance or other aerosol modifier), which can also be arranged within the body of the material 1 of the component 2.
[0198] 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.
[0199] 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 thus the body of material 1 can be increased to accommodate the number of included capsules 41.
[0200] 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.
[0201] 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 fragrance or other reagent, which may be any of the fragrances or aerosol modifiers described herein. The shell 42 of capsule 41 may be ruptured by a user to release the fragrance or other reagent into the material 1 of the body forming part 2.
[0202] In this embodiment, capsule 41 may also be substantially 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, 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.
[0203] 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, capsule 41 may be located closer to the upstream end of component 2 than the downstream end of component 2.
[0204] 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.
[0205] In some embodiments, the shell 42 is formed of a barrier material. This barrier material may be brittle. The capsule 41 may be crushed or otherwise broken by the user to release the encapsulated aerosol modifier payload. Typically, the capsule 41 breaks immediately before use, but the user may choose when to release the aerosol modifier. The term "ruptureable capsule" refers to capsule 41, in which the shell 42 can be broken by pressure to release the liquid payload 43 in the core. More specifically, the shell 42 may break under pressure applied by the user's fingers when the user wishes to release the liquid payload 43 in the core of capsule 41.
[0206] In some embodiments, the barrier material forming the shell 42 may be heat-resistant. That is, in some embodiments, the shell 42 will not crack, melt, or otherwise fail at the temperature reached at the capsule 41 site during operation of the aerosol supply article 3.
[0207] 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 humidity exceeding a predetermined threshold is applied.
[0208] The component 2, which includes the aerosol modifier release component 40, can be formed by the following steps: extruding a plurality of fibers 5 containing regenerated cellulose, hydroentangling the fibers 5 to form a nonwoven sheet material 1, receiving the nonwoven sheet material 1 and inserting the aerosol modifier release component 40 onto the nonwoven sheet material 1, and processing the nonwoven sheet material 1 such that the aerosol modifier release component 40 is surrounded by the nonwoven sheet material 1.
[0209] In some embodiments, the described component 2 can be used as follows: Figure 3 The aerosol supply article 3 is shown in general. The aerosol supply article 3 can be used as or 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.
[0210] In some embodiments, the aerosol supply article 3 may include a plurality of components 2. Each provided component 2 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.
[0211] See now 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 of the following: a plurality of regenerated cellulose fibers; or paper.
[0212] Figure 6 The material 71 of the present aspect of the invention shown is similar to Figures 1 to 5The material 1 shown is a component 2 of the previously described aspect, and therefore its 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 can be incorporated into material 71 of this aspect, and vice versa.
[0213] In some embodiments, the material 71 of the present invention may be a nonwoven sheet comprising a plurality of regenerated cellulose fibers 5 as described above. That is, each of the plurality of substrate sheets 72, 73 may be formed from a nonwoven sheet material 1 comprising a plurality of regenerated cellulose fibers. The regenerated cellulose fibers may be viscose 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 a paper material 1.
[0214] 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 of a nonwoven sheet material 1 comprising a plurality of regenerated cellulose fibers, and at least one of the plurality of substrate sheets 73 may be formed of a sheet material comprising paper.
[0215] 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 material and non-paper material. For example, at least one of the plurality of substrate sheets 72, 73 may be formed of aerosol-generating material, such as, but not limited to, tobacco material, plant material, amorphous solid material, or charcoal paper. In some embodiments, one or more substrate sheets 73 of non-regenerated cellulose material and non-paper material may be located between the outer substrate sheets 72, 74 of regenerated cellulose material and / or the paper materials 72, 74.
[0216] 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.
[0217] 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. Two of these substrate sheets 72, 74 may have a weight of about 20 gsm, and the other substrate sheet 73 may have a weight of about 10 gsm.
[0218] In some embodiments where at least one of the plurality of substrate sheets 73 has a different weight than the others of the plurality of substrate sheets 72, 74, the substrate sheet with the lower weight may be located between the substrate sheets 72, 74 with the higher weight. This arrangement produces material 71 with better operability by means of the equipment, since the manufacturing equipment (not shown) only contacts the structurally stronger and heavier substrate sheet.
[0219] 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.
[0220] In some embodiments, at least one or more portions of the sheet may be treated with aerosol modifiers (such as fragrances), adsorbents (such as charcoal pellets), aerosol forming agents as defined herein, and / or active substances as defined herein (such as nicotine). Advantageously, treating one or more, but less than all, of these portions can 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.
[0221] See now Figure 8 It shows how to use such Figure 3 The aerosol supply article 3 shown is component 75. 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 from regenerated cellulose or paper.
[0222] The filtration efficiency of component 75 can be improved by forming component 75 from multiple substrate sheets 72, 73, 74 made of regenerated cellulose or paper. That is, by using multiple substrate sheets 72, 73, 74 with lower weight (gsm), material 71 can be aggregated in a more uniform manner. This is due to the lower strength of individual substrate sheets 72, 73, 74, which makes them more flexible. Component 75 may include multiple channels 76 formed by the gaps between the folds of the substrate sheets 72, 73, 74. Therefore, component 75 includes less variability in the size of the channels 76 (i.e., the gaps between the folds of material 71).
[0223] This reduction in the variability of channel 76 decreases the likelihood that one path through component 75 will have significantly lower resistance than others. Therefore, aerosols are less likely to flow primarily along the lower-resistance path. This means that 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 that 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 large flow rates when using a single, heavier sheet can now filter a larger volume of aerosols.
[0224] The present 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.
[0225] See now 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 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 a plurality of fibers 5 formed of regenerated cellulose.
[0226] 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 portion 53. The outer portion 54 may extend longitudinally and surround the core portion 53. The outer portion 54 is formed of material 1, which comprises a plurality of fibers 5 formed of regenerated cellulose.
[0227] Figure 9 The component 52 of the present 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.
[0228] 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 ranging from about 4 mm to about 12 mm. In some embodiments, component 2 may have a length ranging from about 6 mm to about 8 mm.
[0229] 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.
[0230] The outer portion 54 may surround the core portion 53. Therefore, the core portion 53 may be located radially inside the outer portion 54. The outer portion 54 is formed of a material 1 comprising a plurality of 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 cuts and having any of the characteristics of the previously discussed embodiments.
[0231] In some embodiments, the core portion 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 lyocell, viscose, rayon, viscose rayon, cuprammonium, and modal. The core portion 53 may take the form of a hollow tubular element 62. That is, the material forming the core portion 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 centrally located within the core portion 53.
[0232] 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.
[0233] 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.
[0234] 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.
[0235] In some embodiments, the core portion 53 may be formed solely of the cavity 64. That is, the core portion 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 portion 53 may not be formed of the first material, but may instead be formed of a material not present in the outer portion 54.
[0236] In some embodiments, the annular body of material 54 may also be surrounded by filter rod forming paper. The filter rod forming paper may have a weight greater than 50 gsm or greater than 60 gsm.
[0237] 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%.
[0238] In some embodiments, the inner circumferential surface of component 52 may include at least one partial layer of amorphous solid material, as previously described. A partial or complete layer may be applied to the inner circumferential surface of the outer portion 54. Thus, the amorphous solid material may form a core portion. Alternatively, the amorphous solid material may be coated on the inner circumferential surface of the core portion 53.
[0239] 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. For example, as Figure 10 As shown, component 52 can be used as the nozzle end section of the filter element of the article, or as... Figure 11 As shown, it is used as the upstream filtration section in a filter element, or as... Figure 12 As shown, it is used as a downstream aerosol generation component.
[0240] In some embodiments, the annular material body 54 forming component 52 may comprise a plurality of 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% of the unencapsulated material, and about 85% to about 99% of the unencapsulated material. The encapsulation surrounding the ring-shaped material body 54 can have a weight greater than about 60 gsm.
[0241] 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.
[0242] See 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 8 Component 2 as described in either of the above. Alternatively, the first segment can be formed from a known filter segment. Component 52 can be as described in relation to... Figure 9 The component described.
[0243] See 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 may be referred to as a cooling section or segment. The second component 2 may be as described above. Figures 1 to 8Any one of the described components 2. Alternatively, the second section can be formed from a known filter section.
[0244] See 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 any of the described components 2. 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).
[0245] See now Figure 13 A perspective view of an aerosol supply article 83 including components 91 and 92 formed of material 1 is shown. In one aspect of the invention, components 91 and 92 for the aerosol supply article 83 are provided, the components including a body of material 1 comprising 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.
[0246] Figure 13 The components 91, 92 of the present aspect of the invention shown are similar to Figures 1 to 9 The 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 will 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.
[0247] Figure 13 The aerosol supply article 83 shown may be a standard large size, 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 wound in a wrapping material 87, the rod 85 being longitudinally connected to a filter tip 88 via a tipping material 89.
[0248] The filter tip 88 may include a first section 91 and a second section 92. The first section 91 may be the same as components 2, 52 previously described herein. The first section 91 may be located at the tip of the filter tip 88 and may be enclosed in the first filter rod forming paper 93.
[0249] The second section 92 may be generally identical to components 2 and 52 described previously. The second section 92 may be located at the aerosol-generating material end of the filter tip 88. The second section 92 may contain adsorbent material in the form of multiple regenerated cellulose fibers 5, as previously described, having adsorbent material 84 dispersed therein. The second section 92 may be encased in the second filter rod forming paper 94.
[0250] The adsorbent material 84 may include activated carbon particles. The activated carbon particles may be, for example, but not limited to, coconut carbon provided in a 30 / 70 mesh size. However, other carbon and / or sizes may be used. For example, particle diameters may be in the range of about 0.1 mm to about 1.0 mm, 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.
[0251] The second section 92 may have approximately 12 mg of adsorbent material 84 per millimeter of length. The second section 92 may also have approximately 4 mg of adsorbent material (i.e., regenerated cellulose fiber 5) per millimeter of length. However, in alternative examples, the amount of adsorbent material 84 may be any value within the range of an average of 6 mg to 16 mg per mm of 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 of length. The amount of adsorbent material (i.e., regenerated cellulose fiber 5) may be an average of approximately 1.5 mg to approximately 8 mg, 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 of length. Each of the ranges given above may be used for a standard specification filter 88, i.e., having a circumference of approximately 23 mm to 25 mm.
[0252] 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.
[0253] The increase in pressure drop and / or hardness percentage caused by the increase in adsorbent dosage per mm in component 92 of filter tip 88 can be offset by a decrease in the amount of adsorbent (i.e., regenerated cellulose fiber 5) per mm. Furthermore, the increase in pressure drop and / or hardness percentage caused by the increase in adsorbent dosage per mm in component 92 of filter tip 88 can be offset by a decrease in the amount of adsorbent material 84 per mm. In particular, the inventors have discovered that for standard aerosol supply products 83, C, in mg... w The amount of adsorbent material 84 in mm length and the T in mg for standard specification aerosol supply products 83. w The amount of adsorbent material (i.e., regenerated cellulose fiber 5) with a length of / mm can be determined according to the following range: 10 ≤ (C w +T w ) ≤ 20, These values enable the components 92 of the filter 88 to exhibit appropriate filter pressure drop and hardness levels, as discussed earlier here.
[0254] If, for a standard perimeter aerosol supply product 83, the amount of adsorbent material 84, measured in mg / mm length, and the amount of adsorbent material fall within the following range: 11 ≤ (C w +T w ) ≤ 18, Or more specifically, within the following scope: 12 ≤ (C w +T w ) ≤ 17, For standard perimeter aerosol supply products, the advantages can also be achieved using adsorbents and adsorbent weights (in mg / mm length) within other ranges, including 10 ≤ (C 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.
[0255] In addition to the selected adsorbent material 84 and the adsorbent weight per mm falling within the above range, the adsorbent material 84 and the adsorbent weight C w T w At least one of the adsorbent levels can be greater than the minimum level. For example, in some embodiments of the invention, the adsorbent level can 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 can be equal to or greater than 6 mg / mm. For a standard perimeter aerosol supply article 84, both minimum levels are about 23 mm to about 25 mm.
[0256] The above scope can also be applied to particulate additives other than adsorbents, such as certain flavorings.
[0257] Section 92 can be manufactured using filter manufacturing equipment, such as the Turmalin equipment from Hauni Maschinenbau AG in Germany.
[0258] When the adsorbent weight / mm is less than 3.5 mg / mm and / or the adsorbent material 84 weight / mm is less than 9 mg / mm (both for standard perimeter aerosol supply articles 83), and / or the combination of adsorbent material 84 and adsorbent weight / mm is at the lower limit of the above range, for example, 12 mg / mm or lower, the inventors have determined that the reduction in stiffness caused by these low weights can be offset by using, for example, a more rigid filter rod forming paper and / or a more rigid tipping material surrounding the component. For example, the filter rod forming paper and / or tipping material can have a stiffness greater than 30 g / mm. 2 Greater than 40 g / m 2 Greater than 50 g / m 2 Greater than 60 g / m 2 Greater than 70 g / m 2 or greater than 80 g / m 2 The basis weight. Alternatively, multi-layer filter rod forming paper and / or tipping material can be used.
[0259] Standard, known filter tips (containing carbon particles dispersed in continuous cellulose acetate tows cut to the desired segment length) typically have a carbon loading limit of 5 mg / mm to maintain 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 chambered triple filter tip is usually required, which has cellulose acetate tow segments at the tip end and aerosol-generating material end, with a carbon-filled chamber between them. Such chambered filters result in the removal of a certain amount of cellulose acetate for a given fiber length, and therefore this can have adverse effects, for example, on specific aspects of filtration and phenol sensitivity. Therefore, there is a clear advantage: the ability to increase the loading of additives without causing excessive pressure drop and without removing the regenerated cellulose fiber filter material.
[0260] The inventors have recognized that by using randomly oriented discrete short-length regenerated cellulose fibers to form a component 82, such as a filter segment 92, manufactured using filter manufacturing equipment like Turmalin, and for a standard circumference aerosol supply article 83, by selecting the amount of adsorbent material 84 to be in the range of an average of about 6 mg to about 16 mg per mm, and the amount of adsorbent (i.e., the fibers of regenerated cellulose) to be in the range of an average of about 1.5 mg to about 8 mg per mm (or within other ranges and limitations previously outlined), an improved filter component 92 can be provided while maintaining acceptable pressure drop and filter stiffness parameters.
[0261] Reference Figure 14 This is a schematic diagram of a component manufacturing apparatus 100 (such as a Turmalin apparatus) used to manufacture filter tips. The components formed in the component manufacturing apparatus 100 can be used as filter tip segments. (See reference...) Figure 14 A source 101 of multiple regenerated cellulose fibers 5 is supplied to a filter manufacturing apparatus comprising multiple modules 102-106. In an embodiment where a tow of regenerated cellulose fibers is supplied to apparatus 100, a feeder module 102 receives the supply of regenerated cellulose fibers 5 and feeds it into a cutter and randomizer 23. The cutter and randomizer 23 can cut the regenerated cellulose fibers 5 into short fiber lengths as previously described. In an embodiment where a material 1 comprising multiple regenerated cellulose fibers 5, formed by hydraulic entanglement or wet web formation, is supplied to apparatus 100, the cutter and randomizer 23 may be omitted. A filter belt feeder 104 includes a vacuum belt on which the regenerated cellulose fibers 5 are disposed. It is fed into a rod former 105 for forming the regenerated cellulose fiber belt 5 into rods wrapped with filter rod forming paper. Finally, a segment cutter 106 is used to cut the rods into segments of desired lengths.
[0262] The filter belt feeder 104 may include a carding unit and multiple hoppers. The carding unit dispenses material 1 onto the vacuum belt, and the multiple hoppers are used to apply additives, such as granules or additional fibers. A return system may also be present, which, if desired, can be used to feed a third additive into the belt of regenerated cellulose fibers 5. The return system may alternatively be used to feed any loosely cut filter material into the feeder module 102 to reduce waste. The filter belt feeder 104 may include a metering roller that is adjustable to allow control of the additive load and ensure uniformity of the regenerated cellulose fiber belt. The filter belt feeder 24 may also include a jet inserter for allowing liquids, such as fragrances, to be injected directly into the component 82.
[0263] In use, the Turmalin device 100 operates as follows: The feeder module 102 supplies the regenerated cellulose fiber bundle 5 to the cutter and randomizer 103. When using material 1 as described above, the cutter and randomizer 103 can be omitted. The regenerated cellulose fiber 5 is transferred to the carding unit of the filter belt carrier 104, from which it is drawn onto the vacuum belt. An additive is fed into the airflow carrying the regenerated cellulose fiber 5, and the rod-forming unit 25 forms the belt into a continuous section 92, which is bound by filter rod forming paper. The segment cutter 106 cuts the continuous section containing the regenerated cellulose fiber 5 into sections of the desired length.
[0264] The significant 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 are derived from the filter design and manufacturing developments made by the inventors, as described below.
[0265] 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 may be an ion exchange resin such as CR20, or other materials such as zeolite, silica gel, meerschaum, alumina (activated or unactivated), carbonaceous resin, magnesium silicate, including meerschaum (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, such as flavoring agents, menthol crystals, or humectant particles, may be used.
[0266] It is previously known to manufacture filter tips containing randomly oriented discrete cellulose acetate fibers. However, similar to conventional cellulose acetate tow filter tips, manufacturing techniques may require the use of plasticizers, such as triacetin, to bind the randomly oriented fibers into a robust structure. However, the advantage of the Turmalin device is that it does not require the use of plasticizers. In the instance of feeding regenerated cellulose fiber tows into the device, the Turmalin device 100 can induce 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.
[0267] 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.
[0268] See now 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 herein and previously described. The first section 91 may be as previously referred to. Figures 2 to 13 Any of the segments 2 described herein contain regenerated cellulose fibers 5.
[0269] The second section 92 may include a first adsorbent material 113 and a second adsorbent material 114 encapsulated within a second filter rod forming paper 94. The second adsorbent material 114 may be dispersed within the first adsorbent material 113. The first adsorbent material 113 may include a plurality of regenerated cellulose fibers 5 having a monofilament denier ranging from about 1 to about 10. The second adsorbent material 114 may include a plurality of regenerated cellulose fibers 5 having a monofilament denier ranging from about 20 to about 30.
[0270] The second section 92 can be manufactured using the Turmalin apparatus 100. The second section 92 can be manufactured by supplying a first adsorbent material 113 to the feeder 102 and by adding a second adsorbent material 114 via one of the additive hoppers in the filter belt 104. Alternatively, the first and second adsorbent materials 113, 114 can be supplied to the feeder 102 of the apparatus 100, respectively.
[0271] Although the second adsorbent material 114 has previously been described as a plurality of regenerated cellulose fibers 5, alternative materials may also be used. For example, the fibers of the second adsorbent material 114 may include polyvinyl alcohol (PVOH), polylactic acid (PLA), poly(ε-caprolactone) (PCL), poly(1,4-butanediol succinate) (PBS), poly(decylated adipate-co-terephthalate adipate) (PBAT), starch-based materials, paper, aliphatic polyester materials, and polysaccharide polymers or combinations thereof.
[0272] Further advantages can be achieved by using nanofiber materials as the basis 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 added, for example, when additives are loaded through one or more hoppers in the filter belt 104. Figure 14 The nanofibers are metered and supplied to the airflow within the filter belt 104 in the filter nozzle of the device.
[0273] Figure 16 A schematic diagram of an aerosol supply article 111 is shown, the aerosol supply article having a component 92 including nanofibers 115 carrying additives for enhancing or enabling a reduction in the amount of mainstream aerosol drawn through 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.
[0274] Nanofibers 115 may comprise carbon nanotubes 115a loaded with zinc oxide (ZnO) particles, the zinc oxide particles acting as catalysts 115b, for example, enhancing the reduction of HCN in aerosols. In alternative examples, other nanofiber materials and / or other catalytic agents, such as gold (Au), may be used alone or in combination (including in combination with carbon and / or ZnO) for the reduction of carbon monoxide (CO) from aerosols. Nanofibers 115a may be added as additives to a plurality of regenerated cellulose fibers 5 using the previously described apparatus 100.
[0275] The nanofibers 115 can have any suitable length for inclusion in the component 92, such as 1 mm to 15 mm or 5 mm to 12 mm. The diameter of the nanofibers 115 used can be 25 nm to 900 nm, 50 nm to 500 nm, or 100 nm to 300 nm.
[0276] See now Figure 17 A schematic diagram of an aerosol supply article 111 comprising a plurality of regenerated cellulose fibers 5 having lines 116 extending therethrough is shown. 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 here. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0277] The thread 116 can be used as a carrier to add fragrance to component 82. A thread insertion device (not shown) can be installed in the central portion of the filter vacuum belt, wherein the thread insertion needle carries the thread into the axial region of component 82 as component 82 is formed. The examples described herein involving the insertion of thread 116 into component 82 are particularly advantageous in thin and ultra-thin specifications (i.e., below 22 mm). Thread 11 can extend axially through the second segment 92.
[0278] See now Figure 18 A schematic diagram is shown of an aerosol supply article 111 comprising a plurality of regenerated cellulose fibers 5 having an aerosol modifier release component 117 in capsule form 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 here. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0279] The inventors also recognize that the Turmalin device 100, etc., can be arranged to allow capsule 117 to be contained within a plurality of regenerated cellulose fibers 5 while ensuring uniform distribution of capsule contents (such as fragrances). In some embodiments, capsule 117 may be a microcapsule or other encapsulation material.
[0280] In a manner similar to that described regarding carbon loading, such materials can be added at higher levels to deliver more flavor. Capsules (whether larger capsules, such as those with a diameter of 3 mm to 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 guiding 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.
[0281] An aerosol modifier release component for an encapsulated flavoring agent in capsule form 117 may be arranged within the second section 92. (See brief description) Figure 19A schematic diagram is shown of an aerosol supply article 83 comprising a plurality of regenerated cellulose fibers 5, wherein the regenerated cellulose fibers have aerosol modifier release components 117 in the form of microcapsules disposed therein. In this embodiment, the aerosol modifier release component having an encapsulated flavoring agent is in the form of microcapsules 118, which can be arranged within the second section 92.
[0282] Reference Figure 20 A schematic diagram of an aerosol supply article 83 comprising a plurality of 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 here. Furthermore, similar features and components will retain the same terminology and reference numerals.
[0283] 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 botanical form, such as peppermint or tobacco leaves or other plant leaves, seeds, or 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 flavor from the botanical additives can be enhanced.
[0284] In some embodiments, the shredded material 119 may be contained within a material formed of a plurality of fibers 5 comprising regenerated cellulose. Such sheet material may include sheet material formed from plants 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.
[0285] The shredded material 119 may include materials formed from fibers of the following: polyvinyl alcohol (PVOH), polylactic acid (PLA), poly(ε-caprolactone) (PCL), poly(1,4-butanediol succinate) (PBS), poly(decylated adipate-co-terephthalate adipate) (PBAT), starch-based materials, paper, aliphatic polyester materials, and polysaccharide polymers or combinations thereof.
[0286] The inventors have also recognized the possibility 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 cannot usually be crimped. However, incorporating PVOH or other non-crewed fibers with regenerated cellulose fibers means that this problem can be overcome. Using such materials can yield components with improved biodegradability and water solubility.
[0287] 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 may be configured to feed two raw material ropes into the cutter and randomizer 23. Thus, the number of processing steps is reduced by straightening the material into filaments instead of first converting it into sheet material.
[0288] Furthermore, if the step of converting the material into a tow material is omitted, the number of processing steps can be further reduced. In such embodiments, feeding, cutting, or randomizing these fibers is not required. Instead, the raw material fiber form can be directly mixed with the plurality of regenerated cellulose fibers 5 in the direct insertion device 100.
[0289] 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.
[0290] 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.
[0291] 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.
[0292] In some embodiments, the second plurality of fibers 123 may be formed from regenerated cellulose. The regenerated cellulose fibers 122 may be the same as the regenerated cellulose fibers previously described in this application. However, the first plurality of fibers 122 may be formed from, for example, viscose, rayon, viscose rayon, and lyocell, while the second plurality of fibers 123 may be formed from, for example, different from viscose, rayon, viscose rayon, and lyocell.
[0293] 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.
[0294] Material 121 may also include any aerosol forming agent, adhesive, plasticizer, additive, active substance, or components as previously described with respect to Material 1 and Component 2 of the previously described embodiments.
[0295] In addition, it provides including Figure 21 The material 121 shown is as follows Figure 2 The component shown. This component may be rod-shaped. Furthermore, the component may include any of the configurations described previously regarding the components of the previously described embodiments.
[0296] 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 6 As described.
[0297] In some embodiments, the component 2 formed of material 121 may be formed from multiple sheets of material 121 stacked on top of each other and formed as components, as per [reference to...]. Figure 7 and Figure 8 As described.
[0298] In some embodiments, the component 2 formed of material 121 may include a longitudinally extending core portion 53 and an outer portion 54 extending longitudinally around the core portion 53, wherein the outer portion 54 is formed of material 121, as per [reference to...]. Figure 9 As described.
[0299] 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 cigarettes, cigarillos, cigars, and tobacco (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable materials) for pipes or hand-rolled or homemade cigarettes; 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.
[0300] According to this disclosure, a "combustible" aerosol supply system is a system in which the aerosol-generating material of the aerosol supply system (or its components) is burned or ignited during use to facilitate the delivery of at least one substance to the user.
[0301] 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.
[0302] In some embodiments, this disclosure relates to a component for a combustible aerosol supply system, such as a filter tip, filter rod, filter tip section, tobacco rod, spill, aerosol modifier release component (such as a capsule, thread, or bead), or paper (such as filter rod forming paper, tipping paper, or cigarette paper).
[0303] According to this disclosure, a "non-flammable" aerosol supply system is a system in which the aerosol-generating material of the aerosol supply system (or its components) is non-flammable or non-ignitable, thereby facilitating the delivery of at least one substance to a user.
[0304] In some implementations, the delivery system is a non-flammable aerosol supply system, such as a powered non-flammable aerosol supply system.
[0305] In some implementations, the non-flammable aerosol supply system is an electronic cigarette, also known as an electronic vaping device or electronic nicotine delivery system (END), but it should be noted that the presence of nicotine in the aerosol generating material is not a necessary condition.
[0306] In some embodiments, the non-flammable aerosol supply system is an aerosol generating material heating system, also known as a heated non-flammable system. An example of such a system is a tobacco heating system.
[0307] In some embodiments, the non-flammable aerosol supply system is a hybrid system that uses a combination of aerosol-generating materials to produce aerosols, one or more of which can be heated. Each aerosol-generating material may, for example, be in solid, liquid, or gel form, and may or may not contain nicotine. In some embodiments, the hybrid system comprises liquid or gel aerosol-generating materials and solid aerosol-generating materials. The solid aerosol-generating materials may include, for example, tobacco or non-tobacco products.
[0308] Typically, a non-flammable aerosol supply system may include a non-flammable aerosol supply device and consumables for use with the non-flammable aerosol supply device.
[0309] In some embodiments, this disclosure relates to consumables comprising aerosol-generating materials and configured for use with a non-flammable aerosol delivery device. Throughout the disclosure, these consumables are sometimes referred to as articles.
[0310] In some embodiments, the 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 electrical source or a heat source. In some embodiments, the heat source includes a carbon matrix that can be excited to distribute power in the form of heat to the aerosol generating material or to a heat transfer material adjacent to the heat source.
[0311] In some embodiments, the non-flammable aerosol supply system includes a consumable area, an aerosol generator, an aerosol generation zone, a housing, a mouthpiece, a filter, and / or an aerosol modifier.
[0312] In some embodiments, consumables for use with a non-flammable aerosol supply device may include aerosol generating material, an aerosol generating material storage area, an aerosol generating material delivery assembly, an aerosol generator, an aerosol generating area, a housing, packaging paper, a filter, a mouthpiece, and / or an aerosol modifier.
[0313] In some implementations, the substance to be delivered includes an active substance.
[0314] As used herein, active substances can be physiologically active materials, which are materials intended to achieve or enhance physiological responses. Such active substances may be, for example, selected from nutrients, nootropics, and psychoactive agents. They may be naturally occurring or synthetically obtained. Active substances may include, for example, nicotine, caffeine, taurine, caffeine, vitamins (such as B6, B12, or C), melatonin, or components, derivatives, or combinations thereof. Active substances may also include one or more components, derivatives, or extracts from tobacco or another plant.
[0315] In one implementation, the active substance is a legally permissible recreational drug.
[0316] In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin, or vitamin B12.
[0317] As mentioned herein, the active substance may comprise or be derived from one or more plants or their components, derivatives, or extracts. As used herein, the term "plant" includes any material derived from a plant, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, peels, shells, etc. Alternatively, the material may include naturally occurring or synthetically obtained active compounds found in plants. The material may be in the form of a liquid, gas, solid, powder, dust, crushed particles, pellets, beads, fragments, strips, flakes, etc. Examples of plants include: tobacco, eucalyptus, star anise, hemp, cocoa, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazelnut, hibiscus, bay leaf, licorice, matcha, wintergreen tea, orange peel, papaya, rose, sage, tea such as green or black tea, thyme, clove, cinnamon, coffee, anise, basil, bay leaf, cardamom, coriander, fennel, nutmeg, oregano, and red chili peppers. Rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, deer hoof grass, perilla, turmeric, sandalwood, coriander leaves, bergamot, orange blossom, myrtle, blackcurrant, valerian, chili pepper, nutmeg, damien, oregano, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, geranium, mulberry, ginseng, theanine, theophylline, maca, ashwagandha, crape myrtle, Brazilian cocoa, chlorophyll, baobab, or any combination thereof. Mint may be selected from the following mint varieties: wild mint ( Mentha Arventis ), Mint Cultivation Varieties ( Mentha cv), Egyptian mint ( Mentha niliaca ), peppermint ( Mentha piperita Peppermint cultivar () Mentha piperita citrata cv), peppermint cultivar ( Mentha piperita cv), wrinkled spearmint ( Mentha spicata crispa Madder mint ( Mentha cordifolia ), peppermint ( Mentha longifolia ), variegated pineapple mint ( Mentha suaveolens variegata ), mint ( Mentha pulegium Spearmint cultivar ( Memtha spicata cv) and apple mint ( Mentha suaveolens ).
[0318] In some embodiments, the active substance comprises or is derived from one or more plants or their components, derivatives or extracts, and the plant is tobacco.
[0319] In some embodiments, the active substance comprises or is derived from one or more plants or their components, derivatives or extracts, and the plants are selected from eucalyptus, star anise, cocoa and hemp.
[0320] In some embodiments, the active substance comprises or is derived from one or more plants or their components, derivatives or extracts, and the plants are selected from loipary and fennel.
[0321] In some implementations, the substance to be delivered contains fragrance.
[0322] As used herein, the terms "flavor" and "flavorant" refer to materials that, where permitted by local regulations, can be used in adult-consumable products to produce a desired taste, aroma, or other bodily sensation. These can include naturally occurring flavoring materials, plants, plant extracts, synthetic materials, or combinations thereof (e.g., tobacco, licorice, hydrangea, eugenol, Japanese white barkmagnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese peppermint, anise, cinnamon, turmeric, Indian spices, Asian spices, vanilla, deer antler, cherry, berries, cranberries, blueberries, peach, apple, orange, mango, citrus, lemon, lime, tropical fruits, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, honey whiskey, bourbon whiskey, Scotch whiskey, whiskey). Liquor, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, quinoa, nutmeg, sandalwood, bergamot, geranium, khat, naswar, areca nut, hookah, pine, honey extract, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cinnamon, caraway, cognac, jasmine, ylang-ylang, sage, fennel, hawthorn, allspice, ginger, coriander, coffee, hemp. Peppermint oil from any species of the genus *Mentha*, eucalyptus, star anise, cocoa, lemongrass, loipary, flax, ginkgo, hazelnut, hibiscus, laurel, wintergreen tea, orange peel, rose, tea such as green or black tea, thyme, juniper, elderflower, basil, bay leaf, fennel, oregano, red pepper, rosemary, saffron, lemon peel, mint, perilla, turmeric, coriander leaf, myrtle, blackcurrant, valerian, chili pepper, nutmeg, damiensis, sweet oregano, olive, bees Flowers, lemon basil, chives, caraway, verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter taste receptor blockers, sensory receptor activators or stimulants, sugars and / or sugar substitutes (e.g., sucralose, potassium dichloroxahiazide, aspartame, saccharin, cyclosulfonates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as activated charcoal, chlorophyll, minerals, botanicals, or breath fresheners. These can be imitations, synthetic or natural ingredients, or blends thereof. They can be in any suitable form, such as liquids like oils, solids like powders, or gases.
[0323] In some embodiments, the flavoring includes menthol, spearmint, and / or peppermint. In some embodiments, the flavoring includes aroma components of cucumber, blueberry, citrus fruits, and / or cranberries. In some embodiments, the flavoring includes eugenol. In some embodiments, the flavoring includes aroma components extracted from tobacco.
[0324] In some embodiments, the fragrance may include sensates intended to induce somatic sensations, which are typically chemically induced and perceived in addition to stimulation of the fifth cranial nerve (trigeminal nerve) in place of olfactory or gustatory nerves, and these may include agents that provide heat, coolness, tingling, or numbing effects. Suitable heat-acting agents may be, but are not limited to, vanillyl ether, and suitable coolants may be, but are not limited to, eucalyptol and WS-3.
[0325] Aerosol-generating materials are materials that can generate aerosols, for example, when heated, irradiated, or powered in any other way. Aerosol-generating materials can be in solid, liquid, or semi-solid (such as gel) form, and may or may not contain active substances and / or flavorings.
[0326] Aerosol generating materials may contain one or more active substances and / or fragrances, one or more aerosol forming agent materials, and optionally one or more other functional materials.
[0327] The aerosol-generating material may comprise a binder (e.g., 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 or insoluble in the solvent. In some embodiments, the aerosol-generating material is substantially free of plant material. Specifically, in some embodiments, the aerosol-generating material is substantially free of tobacco.
[0328] Aerosol-generating materials may include or be in the form of aerosol-generating membranes. Aerosol-generating membranes may contain binders (e.g., gelling agents) and aerosol-forming agent materials. Optionally, a substance to be delivered and / or fillers may also be present. Aerosol-generating membranes may be substantially free of plant material. Specifically, in some embodiments, the aerosol-generating material is substantially free of tobacco.
[0329] 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.
[0330] 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 packaging paper, which can be aggregated to form an aggregated sheet, or it may be shredded to form shredded material. Shredded material may include one or more strands or strips of aerosol-generating material.
[0331] 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 dots, stripes, or lines, that can be supported on a support. In such embodiments, the support may be planar or non-planar.
[0332] Aerosol-generating membranes can be formed by the following steps: combining an adhesive (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.
[0333] The slurry can be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt%, or 90 wt% of the solvent.
[0334] Aerosol generating materials may include or be "amorphous solids". In some embodiments, the aerosol generating material includes an amorphous solid aerosol generating membrane. 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 degel. An amorphous solid is a solid material that can retain some fluid (e.g., liquid) therein. In some embodiments, the amorphous solid may, for example, comprise about 50 wt%, 60 wt%, or 70 wt% of amorphous solids to about 90 wt%, 95 wt%, or 100 wt% of amorphous solids.
[0335] This amorphous solid may be substantially free of plant material. The amorphous solid may be substantially free of tobacco.
[0336] 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 laurylate, diethyl octanoate, triethyl citrate, triacetin, a mixture of diacetate, benzyl benzoate, benzyl phenylacetate, glyceryl tribocate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
[0337] One or more other functional materials may include one or more of pH adjusters, colorants, preservatives, binders, fillers, stabilizers and / or antioxidants.
[0338] The material may be present on or within the support to form a substrate. For example, the support may be or include paper, cardboard, cardboard, reconstituted material, plastic material, ceramic material, composite material, glass, metal, or metal alloy. In some embodiments, the support includes a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or both sides of the material.
[0339] 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 assembly, an aerosol-generating area, a housing, packaging paper, a mouthpiece, a filter, and / or an aerosol modifier. Consumables may also include an aerosol generator, such as a heater, which generates heat during use to induce the aerosol-generating material to generate an aerosol. The heater may, for example, comprise a combustible material (a material that can be heated by electrical conductivity) or a base.
[0340] The base is a heatable material that is penetrated by a changing magnetic field, such as an alternating magnetic field. The base can be a conductive material, so that the penetration of the changing magnetic field causes induction heating of the heating material. The heating material can be a magnetic material, so that the penetration of the changing magnetic field causes hysteresis heating of the heating material. The base can be both conductive and magnetic, thus the base can be heated by both heating mechanisms. In this document, the device configured to generate the changing magnetic field is referred to as a magnetic field generator.
[0341] Aerosol modifiers are substances typically located downstream of the aerosol generation zone, configured to modify the generated aerosols, for example, by altering taste, aroma, acidity, or another property of the aerosol. The aerosol modifier can be provided in an aerosol modifier release component, which is operable to selectively release the aerosol modifier.
[0342] The aerosol modifier may be, for example, an additive or an adsorbent. The aerosol modifier may, for example, contain one or more of the following: flavoring agents, coloring agents, water, and carbon adsorbents. The aerosol modifier may be, for example, a solid, a liquid, or a gel. The aerosol modifier may be in powder, filament, or granule form. The aerosol modifier may not contain filter material.
[0343] An aerosol generator is a device configured to induce the generation of aerosols from an aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol-generating material to thermal energy, thereby releasing one or more volatile substances from the aerosol-generating material to form an aerosol. In some embodiments, the aerosol generator is configured to induce the generation of 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, pressure increase, or electrostatic energy.
[0344] It should be understood that the advantages, implementation methods, embodiments, functions, features, structures, and / or other aspects described herein should not be considered as limitations on the scope of the invention as described in the claims or on the equivalents of the claims, and other implementation methods may be used and modifications may be made without departing from the scope of the claimed invention. In addition to those specifically described herein, various embodiments of the invention may suitably include, constitute, or substantially constitute suitable combinations of the disclosed elements, components, features, parts, 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: Multiple substrate sheets stacked on top of each other; At least one of the plurality of substrate sheets is formed of any of the following: Multiple regenerated cellulose fibers, or Paper.
2. The material according to claim 1, wherein the total weight of the plurality of substrate sheets is in the range of 40 gsm to 90 gsm.
3. The material according to claim 1 or claim 2, wherein each of the plurality of substrate sheets has the same g / m 2 The weight of the instrument.
4. The material of claim 3, wherein each of the substrate sheets has a weight in the range of about 10 gsm to about 30 gsm.
5. The material according to claim 1 or claim 2, wherein at least one of the plurality of substrate sheets has a different weight from at least one of the other plurality of substrate sheets.
6. The material of claim 5, wherein one of the plurality of substrate sheets has a weight in the range of about 5 gsm to about 20 gsm, and another of the substrate sheets has a weight in the range of about 20 gsm to about 40 gsm.
7. The material according to any one of the preceding claims, wherein each of the plurality of substrate sheets is formed of a plurality of regenerated cellulose fibers.
8. The material according to any one of claims 1 to 7, wherein the plurality of fibers are composed of regenerated cellulose and constitute 90% to 100% by weight of the fibers contained in the material.
9. The material according to any one of the preceding claims, wherein the plurality of regenerated cellulose fibers comprises at least one of viscose, lyocell, rayon, viscose rayon, cuprammonium, and modal.
10. The material of claim 9, wherein the plurality of regenerated cellulose fibers are composed of lyocell fibers and are the only fibers contained within the material.
11. The material of claim 9, wherein the plurality of regenerated cellulose fibers are composed of viscose fibers and are the only fibers contained within the material.
12. The material according to any one of the preceding claims, wherein the plurality of regenerated cellulose fibers of at least one substrate sheet are hydraulically entangled.
13. The material according to any one of claims 1 to 11, wherein the plurality of regenerated cellulose fibers of at least one substrate sheet are wet-laid.
14. The material of claim 13, further comprising an adhesive.
15. The material of claim 14, wherein the adhesive comprises 2% to 10% by weight of the component for the aerosol supply article, optionally wherein the adhesive comprises pectin.
16. The material according to any one of claims 12 to 15, further comprising a plasticizer.
17. The material according to any one of the preceding claims, wherein the plurality of fibers have a density of about 0.1 g / cm³. 3 Approximately 0.4 g / cm³ 3 The packing density within the range.
18. The material according to any one of the preceding claims, wherein the plurality of fibers have a denier in the range of about 1 dpf to about 30 dpf.
19. The material of claim 16, wherein the plurality of fibers comprises a first plurality of regenerated cellulose fibers and a second plurality of regenerated cellulose fibers, wherein the first plurality of regenerated cellulose fibers have a greater denier than the second plurality of regenerated cellulose fibers, optionally wherein the first plurality of regenerated cellulose fibers have a denier in the range of about 10 dpf to about 30 dpf, and the second plurality of regenerated cellulose fibers have a denier in the range of about 1 dpf to about 10 dpf.
20. The material of claim 19, wherein the plurality of fibers comprises 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.
21. The material according to any one of the preceding claims, wherein the plurality of regenerated cellulose fibers are discontinuous and have a fiber length in the range of about 30 mm to about 60 mm.
22. The material according to any one of the preceding claims, wherein the maximum cross-sectional dimension of each fiber is greater than 10 μm.
23. The material according to any one of the preceding claims, wherein the plurality of fibers are crimped.
24. The material according to any one of the preceding claims, wherein the material is in the form of a sheet or an elongated material body.
25. The material of claim 24, wherein the material is in a state having a concentration 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.
26. The material according to claim 24 or 25, wherein the material is in the form of a sheet having a thickness of 60 to 500 µm or 150 to 350 µm.
27. The material according to claim 24, 25 or 26, wherein the material is in a state having 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.
28. The material according to any one of claims 24 to 27, wherein the material is in the form of a nonwoven sheet, the nonwoven sheet being assembled to form a rod-shaped element, optionally wherein the nonwoven sheet is uncurled and unpleated when assembled to form the rod-shaped element.
29. The material according to any one of claims 24 to 28, wherein the material is in the form of a plurality of nonwoven sheets, the plurality of nonwoven sheets being aggregated to form a rod-shaped element, optionally wherein the plurality of nonwoven sheets are uncurled and unpleated when aggregated to form the rod-shaped element.
30. The material according to any one of the preceding claims, wherein the material is in the form of a nonwoven sheet.
31. The material according to any one of the preceding claims, wherein the material is in the form of a pleated nonwoven sheet.
32. The material of claim 30, wherein the nonwoven sheet is in the form of a non-pleated nonwoven sheet.
33. The material according to any one of claims 30 to 32, wherein the nonwoven sheet has a width in the range of about 5 mm to about 200 mm, optionally in the range of about 50 mm to about 200 mm, optionally in the range of about 50 mm to about 120 mm.
34. The material of claim 24, wherein the material is in a state having 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.
35. The material of claim 34, wherein the elongated material body comprises a plurality of fibers extending longitudinally from a first end of the body through the body to a second end of the body.
36. The material according to claim 24, 34 or 35, wherein the elongated material body comprises a rod-shaped element having a circumference of about 16 mm to about 25 mm or about 18 mm to about 23 mm.
37. The material according to any one of claims 1 to 4, wherein each of the plurality of substrate sheets is formed of paper.
38. The material according to any one of claims 1 to 4, wherein at least one of the plurality of substrate sheets is formed of non-regenerated cellulose or non-paper material.
39. The material according to claim 38, wherein at least one of the plurality of layers is formed of a sheet of amorphous solid material, a sheet of tobacco material, a sheet of reconstituted plant material, or charcoal paper.
40. The material according to claim 38 or claim 39, wherein at least one non-regenerated cellulose material or non-paper material substrate sheet is located between the outer layers of the regenerated cellulose material or paper material substrate sheet.
41. The material according to any one of the preceding claims, wherein the substrate sheet having the greatest weight forms the outer layer of the material.
42. The material according to any one of the preceding claims, wherein at least one of the plurality of substrate sheets comprises an aerosol-modifying additive.
43. The material of claim 42, wherein one or more portions of at least one of the plurality of substrate sheets comprise an aerosol-modifying additive.
44. The material according to claim 42 or claim 43, wherein at least one of the plurality of substrate sheets is free of aerosol-modifying additives.
45. The material according to any one of the preceding claims, wherein the material comprises about 5 wt% to about 60 wt% of an aerosol forming agent material based on dry weight, or about 15 wt% to about 50 wt% of an aerosol forming agent based on dry weight.
46. The material according to any one of the preceding claims, wherein the material comprises an active substance and / or a fragrance.
47. A component for an aerosol supply article, the component comprising: The material according to any one of the preceding claims.
48. The component of claim 47, wherein the component is rod-shaped.
49. The component according to claim 48, wherein the rod-shaped component has a hardness of about 80% or higher.
50. The component according to any one of claims 47 to 49, wherein the component exhibits a voltage drop in the range of about 1 mmWG per mm component length to about 6.5 mmWG per mm component length.
51. The component according to any one of claims 47 to 50, wherein the component is a filter section.
52. The component according to any one of claims 47 to 50, wherein the component is an aerosol generation section.
53. A method for forming a component for an aerosol supply article, the method comprising the steps of: Provide the material according to any one of claims 1 to 45, and The material is assembled into rod-shaped components.