JP2022105210A - Smoking article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol generating article comprising a wrapping material including a non-combustible material.

SOLUTION: An aerosol generating article 101 comprises an aerosolizable material 103 and a wrapping material 102 arranged around the aerosolizable material 103. The wrapping material 102 includes a non-combustible material. The wrapping material 102 extends from a first end of the aerosolizable material 103 and over about 10% to about 85% of a distance to a second end of the aerosolizable material 103, which is a mouth end.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to smoking products and includes, but is not limited to, an aerosol product having a coated aerosolizable material and an aerosol product having a coated aerosolizable material. Regarding the combination.

Smoking products such as cigarettes and cigars burn tobacco when used to generate tobacco smoke. Alternatives to these types of smoking products release the compound by heating the aerosolizable material without burning it.

Typically, the aerosolizable material is heated to volatilize at least one component of the aerosolizable material in order to form an aerosol that can be aspirated without burning or burning the aerosolizable material. The device is known. Such devices are also described as "non-combustion heating" devices, or "tobacco heating products" (THPs), or "tobacco heating devices", or similar. A variety of different constructs are known for volatilizing at least one component of an aerosolizable material.

The material may be, for example, tobacco, other non-tobacco products, or a combination of blended mixtures and the like, which may or may not contain nicotine.

According to the first aspect, the present invention provides an aerosol product. The aerosol product comprises an aerosolizable material and a coating material disposed around the aerosolizable material, the coating material comprising a nonflammable material and the coating material being an aerosolizable material. It extends from the first end to about 10% to about 85% of the distance to the second end of the aerosolizable material.

In some cases, the coating material surrounds the aerosolizable material.

In some cases, aerosolizable materials include tobacco.

In some cases, the aerosolizable material is a rod of aerosolizable material.

In some cases, nonflammable materials include metal leaf. For example, the metal leaf may contain aluminum.

In some cases, the coating material extends from the first end of the aerosolizable material to about 20% to about 70% of the distance to the second end of the aerosolizable material.

In some cases, the coating material extends from about 40% to about 65% of the distance from the first end of the aerosolizable material to the second end of the aerosolizable material.

In some cases, the coating material extends from the first end of the aerosolizable material to about 50% to about 60% of the distance to the second end of the aerosolizable material.

In some cases, the aerosol product may further include a filter and / or a cooling element. In some cases, the cooling element may be placed between the aerosolizable material and the filter. In some cases, the filter may be placed between the aerosolizable material and the cooling element.

According to the second aspect, the present invention provides an aerosol production combination comprising a heater and an aerosol product according to the first aspect of the present invention. In some cases, the aerosol production combination may be a tobacco heating product (also known as a non-combustion heating device).

A further aspect of the invention provides a system comprising an aerosol-producing device and an aerosol-producing product according to the first aspect.

A further aspect of the invention provides a process for making an aerosol product, comprising the step of coating an aerosolizable material within the coating material. The coating material comprises a non-combustible material, which extends from the first end of the aerosolizable material to about 10% to about 85% of the distance to the second end of the aerosolizable material.

A further aspect of the invention provides a method of preventing the user from igniting or igniting an aerosolizable material in an aerosol product. The method comprises the step of coating an aerosolizable material within the coating material, the coating material comprising a nonflammable material, the coating material extending from a first end of the aerosolizable material of the aerosolizable material. It extends over about 10% to about 85% of the distance to the second end.

The features of the invention described in the context of one embodiment as expressly disclosed may be combined with each other aspect to the extent that they are consistent.

Further features and advantages of the present invention will become apparent from the following figures and explanations of the examples of the present invention (given merely as examples and without any limitation in the claims).

It is a schematic side view of the aerosol product by the example of this invention. It is the schematic of the 1st end part of the aerosol product by the example of this invention. It is a schematic diagram of the first end of a different aerosol product according to the example of the present invention. It is a schematic side view of the aerosol product by the example of this invention. It is a schematic exploded view of a coating material that can be used in some examples. It is a schematic exploded view of a coating material that can be used in some examples.

FIG. 1 is a schematic diagram of an exemplary aerosol product. The aerosol product 101 comprises an aerosolizable material 103, the aerosolizable material 103 being coated with a nonflammable material 102 from its first end. In this example, the nonflammable material 102 extends over about 50% of the distance to the second end of the aerosolizable material.

In some cases, the wrapper extends from the first end of the aerosolizable material and at least about 10%, 20%, 30%, 40%, or 50 of the distance to the second end of the aerosolizable material. May extend over%.

When making aerosol products (such as cigarette heating products), care is taken to prevent users from trying to burn aerosolizable materials and not to smoke when burning aerosolizable materials. It is not configured to burn a formulation of an aerosolizable material (and the aerosol resulting from combustion is as much as an aerosol produced by heating the aerosolizable material without burning it, or a conventional paper roll. It may not be as suitable for suction as the aerosol produced by burning cigarettes).

In use, the second end of the aerosolizable material is the oral end and the first end is the distal end (hence the second end is referred to herein as the oral end). Sometimes, in this document, the first end is referred to as the distal end). By covering the distal end of the aerosolizable material (ie, the end that the user intends to ignite) within the nonflammable material, the aerosolizable material of the aerosol product can be made into a conventional flammable cigarette. It is prevented from burning and emitting smoke. The present inventors have confirmed that the greater the proportion of the aerosolizable material coated in the nonflammable material, the more difficult it is to burn.

In some examples, the nonflammable coating material may be placed around the tobacco material. The nonflammable coating material may also optionally be placed over the first end of the aerosolizable material so that the first end is completely enclosed by the coating material. FIG. 2 shows an example in which the nonflammable material 102 covers the periphery of the aerosolizable material. The first end of the aerosol product 101 is not covered with a nonflammable material. FIG. 3 shows an alternative example of an aerosol product 101 in which the nonflammable material 102 completely surrounds the first end of the aerosol product.

As used herein, the phrase "nonflammable" usually refers to a material that does not ignite or burn at temperatures that accompany the ignition (ignition) or burning of tobacco.

In some cases, the wrapper extends from the first end of the aerosolizable material and is approximately 85%, 80%, 75%, 70%, 65% of the distance to the second end of the aerosolizable material. Or extend over a distance shorter than 60%.

Nonflammable materials can be more expensive than traditional tobacco coating materials such as paper. Therefore, it may be advantageous to use as little as possible while balancing the need to make it harder to burn.

Moreover, nonflammable materials are typically more difficult to use in production than traditional tobacco coating materials such as paper. For example, we have confirmed that nonflammable materials can be harder to cut than paper. This affects the method of manufacturing aerosolizable materials when (a) the length of the aerosolizable material may be cut from a longer body and (b) the coating material is provided with vents. There is.

We have confirmed that when 10% to 85% of the length of the aerosolizable material is covered, the wrapper extending from the first end meets these various competing requirements.

In some cases, the coating material extends from the first end of the aerosolizable material and extends from about 20-70%, 40-65%, or 50-to the distance to the second end of the aerosolizable material. It may extend over 60%.

Examples of aerosol products may further comprise further comprising a filter and / or cooling element. In some cases, these additional components are surrounded by a paper wrapper that also surrounds the aerosolizable material. In such cases, a portion of the aerosolizable material is coated within the paper wrapper in addition to the covering material containing the non-combustible material, even though the paper wrapper is on the covering material containing the non-combustible material. It may be underneath.

For example, the second end (ie, mouth side end) of the aerosolizable material may be provided adjacent to the cooling element and / or the filter. If there is a cooling element, the cooling element can condense the vapor components to form an aerosol and / or separate a very hot part of the device from the user. If there is a filter, the filter can remove from the fluid flow any components that affect the chemical composition of the aspirated aerosol.

FIG. 4 shows an example of an aerosol product 101 comprising a cooling element 104, a filter 105, and a mouth end tube 106 in addition to the functional part of FIG. The cooling element 104 and the filter 105 can be placed between the mouth-side end of the aerosolizable material 103 and the mouth-side end tube 106, as shown, from the aerosolizable material 103. The flow passes through the cooling element 104 and the filter 105 before reaching the user (or, if the filter is placed in front of the cooling element in the flow, vice versa). The example of FIG. 4 shows the cooling element 104, the filter 105, and the mouth end tube 106, but in other examples, one or more of these elements may be omitted.

In some examples, if there is a mouth end tube 106, the mouth end tube may be, for example, paper in the form of a spirally wound paper tube, cellulose acetate, thick paper, crimp heat resistant paper or crimp sheepskin paper, etc. And / or can be formed from a polymer material such as low density polyethylene (LDPE), or some other suitable material. The mouth-side end tube 106 can be a hollow tube. Such hollow tubes can be provided with a filtering function to filter the volatilized aerosolizable material. The mouth-side end tube 106 may be elongated to keep it away from the very hot parts of the main device (not shown) that heats the aerosolizable material.

In some examples, if there is a filter 105, the filter can be a filter plug, eg, made from cellulose acetate.

In some cases, if there is a cooling element 104, the cooling element has first and second ends and is provided with a plurality of through holes extending between the first and second ends. It can be equipped with an integrated rod. The through hole can extend substantially parallel to the longitudinal center axis of the rod. The through holes of the cooling element 104 can be arranged approximately in the radial direction of the element when viewed in cross section. That is, in one example, this element defines a through hole and has two main structures, namely an internal wall with a radial wall and a central wall. The radial wall extends along the radius of the cross section of the element and the central wall is located in the center of the cross section of the element. The central wall is circular in one example, but other regular or irregular cross-sectional shapes may be used. Similarly, the cross section of the element is circular in one example, but other regular or irregular cross-sectional shapes may be used.

In one example, most of the through holes have a hexagonal or generally hexagonal cross-sectional shape. In this example, this element, when viewed from one end, has what is called a "honeycomb" structure.

In some cases, if there is a filter 105, the cooling element 104 can include a hollow tube that separates the filter 105 from the very hot parts of the main device that heats the aerosolizable material. The cooling element 104 may be, for example, paper in the form of a spirally wound paper tube, cellulose acetate, thick paper, crimped paper such as crimped heat resistant paper or crimped sheepskin, and polymer materials such as low density polyethylene (LDPE), or It can be formed from several other suitable materials.

With the cooling element 104, the cooling element can be substantially incompressible. It can be formed from a ceramic material or a thermoplastic polymer, which may be a polymer, eg, an extrudable plastic material. In one example, the porosity of the cooling element ranges from 60% to 75%. The porosity here can be used as a measure of the ratio of the cross-sectional area of the element occupied by the through hole. In one example, the porosity of the cooling element is from about 69% to 70%.

Other examples of aerosol cooling elements are disclosed in PCT / GB2015 / 051253, which is expressly incorporated herein by reference in its entirety, and in particular in the description of FIGS. 1-8 and 8: 11-18. Has been done.

In a further example, the cooling element 104 can be formed from a sheet material that has been bent, corrugated, or pleated to form a through hole. The sheet material can be made from, for example, a metal such as aluminum, a polymer plastic material such as poroethylene, poropropylene, polyethylene terephthalate, or polyvinyl chloride, or paper.

In some examples, the cooling element 104 and the filter 105 can be held together by wrapper paper to form a combination. The combination can then be joined to the aerosolizable material by an additional wrapper surrounding the combination and at least the mouth end of the aerosolizable material to form the aerosol product 101. In another example, the aerosol product 101 can be aerosolized to the cooling element 104, the filter 105, and / or without the use of additional chip paper provided for the cooling element and / or the filter component (if any). It is formed by effectively coating the material 103 in a single operation.

In some cases, one or more vents can be formed in the aerosol product. Vents can supply an air stream that forms part of the sucked aerosol into the aerosol product during use. It may be desirable to reduce the airflow at the distal end of the aerosolizable material to make it less combustible, and therefore holes may be formed closer to the oral end than to the distal end. For example, if there are cooling elements and / or filters, ventilation holes can be formed in them. In addition, ventilation holes may be formed in a portion of the aerosol product that is not coated within the nonflammable material. We have confirmed that it is not easy to cut nonflammable materials to form vents.

The aerosolizable material may be a rod of aerosolizable material. As used herein, the term "rod" generally refers to an elongated object that can be of any suitable shape for use in aerosol production combinations. In some cases, this rod is substantially columnar.

In some cases, aerosolizable materials include tobacco. The tobacco may be any suitable solid tobacco such as single grade or blend, chopped rug or whole leaf, ground tobacco, tobacco fiber, chopped tobacco, extruded tobacco, tobacco petioles, and / or recycled tobacco. Tobacco may be of any type, including but not limited to Virginia and / or Burley and / or Orient tobacco.

In use, in some cases, the aerosol product may be placed at least partially within the tobacco heater to form an aerosol production combination that heats the aerosol product to produce the aerosol without burning. can. In some other cases, the aerosol product can be placed in a combination having a fuel source such as a flammable fuel source or a chemical heat source that heats but does not burn the aerosolizable material.

Coating material containing non-combustible material In some cases, the non-combustible material includes metal leaf. In some cases, the nonflammable material may be composed substantially of metal leaf or may be composed of only metal leaf. It is preferable that the metal foil may include an aluminum foil, may be substantially composed of the aluminum foil, or may be composed of only the aluminum foil. Although metal leaf is a nonflammable material, it can act to transfer heat to the aerosolizable material during use.

In some cases, the metal leaf may be thinner than about 100 μm, 50 μm, 20 μm, 10 μm, or 8 μm. In some cases, the metal leaf may be thicker than about 1 μm, 3 μm, or 5 μm.

In some cases, the aerosolizable material may be coated within two or more coating materials. That is, in addition to the coating material, including the nonflammable material, the aerosolizable material may be coated within one or more additional materials. One or more of these additional coating materials may cover more or less aerosolable material than the coating material, including the nonflammable material.

In some cases, one or more additional coating materials may surround other components of the aerosol product (in addition to the coating material) as described above.

In some cases, one or more additional coating materials may include paper above and / below the nonflammable coating material.

In some cases, the coating material, including the nonflammable material, may be a laminated material. In some cases, the laminated material may include two, three, four, or more layers.

Suitable laminated materials may include a layer of paper and a layer of metal foil (such as a layer of aluminum foil). In some cases, the laminated material may be composed of two layers, such as a layer of paper and a layer of metal leaf.

As used herein, the term "laminated structure" refers to a multi-layer structure in which layers are fixed together to form a single body. These layers may be fixed using, for example, an adhesive. In another example, these layers may be fixed by electrostatic interaction. In another example, the laminated structure may be formed by (partially) melting the first layer, contacting the first layer with the second layer, and solidifying the first layer. Laminated structures with, but not limited to, the above examples and any suitable mechanism for fixing the layers together, including bundling, sewing, screwing, nailing, bolting, hooking, etc. Can form a body.

In some cases, an adhesive may be applied to the surface of each layer. In other cases, the adhesive may be applied only around the layer. In some cases, each layer of the laminated structure may be fixed to adjacent layers (s). In the example of some laminated structures, the perimeters of the two layers may be fixed together with an intermediate layer in between.

In some cases, the laminated coating material may include an inner layer containing metal leaf and an outer layer containing paper. FIG. 6 shows such an example. The laminated structure (shown by the dotted line) includes an inner layer 502 and an outer layer 501. In some cases, the laminated coating material may be composed of these two layers.

In some cases, the laminated coating material may include an innermost and outermost layer, including paper, as well as an intermediate layer of metal leaf. FIG. 5 shows such an example. The laminated structure (shown by the dotted line) includes peripheral layers 501, 503 and an intermediate layer 502. In some cases, the laminated coating material may be composed of these three layers.

When the aerosolizable material is coated with both a layer of metal leaf and a layer of paper, the laminated wrapper as described above will adequately provide the desired nonflammability. Furthermore, such coating has a low porosity, limiting the sidestream of air to the tobacco and making it more difficult to burn.

Further, if the outer layer is a layer containing paper (in some cases, the innermost layer may be a layer containing paper), it is advantageous because the surface (s) of the laminate have a coefficient of friction of paper. We have confirmed that this is possible. This means that the laminated wrapper can be more easily used in known cigarette manufacturing processes and machines. Since the surface of the laminate has a coefficient of friction equivalent to that of a cigarette, the aerosol belt of the aerosol product manufacturing machine can drive the laminate wrapper to pass through the ganitar in the aerosol product manufacturing process.

We have further confirmed that if the innermost layer is paper, it can be advantageous as it can act as a perfume carrier. That is, in some cases, the innermost layer of the laminated coating material comprises paper and a flavoring agent that is coated around the aerosolizable material and transferred to the aerosolizable material when heated. In some cases, the flavoring is impregnated in the innermost layer of paper. In some cases, the flavoring may include menthol.

The laminated coating material paper described in this document is at least about 10 g · m ^-2 , 15 g · m ^-2 , 20 g · m ^-2 , or 25 g · m ^-2 to about 50 g · m ^{-2 ,} 45 g · m-. It may have a weighing up to ² , 40 g · m ^-2 , or 35 g · m ^-2 . Papers with densities in this range have low porosity, making combustion even more difficult by limiting oxygen levels in aerosolizable materials.

The paper may be treated with one or more combustion inhibitors.

The laminated material is wrapped around a bobbin core and can be used with standard cigarette makers and is delivered from a single paper bobbin.

The laminated material may be formed using any suitable laminating technique. In one example, the layers may be bonded together.

The above example should be understood as an example to illustrate the invention. Any feature described for any one example may be used alone or in combination with the other features described, and one of any other example of the examples. It should be understood that it may be used in combination with one or more features, or in any other combination of examples. In addition, equivalents and modifications not described above can also be used as long as they do not deviate from the scope of the invention as defined in the appended claims.

Claims (17)

An aerosol product comprising an aerosolizable material and a coating material disposed around the aerosolizable material.
The coating material comprises a nonflammable material, wherein the coating material extends from a first end of the aerosolizable material to about 10% to about 85% of the distance to a second end of the aerosolizable material. Aerosol product that extends over%. The aerosol product of claim 1, wherein the coating material surrounds the aerosolizable material. The aerosol product according to claim 1 or 2, wherein the aerosolizable material comprises tobacco. The aerosol product according to any one of claims 1 to 3, wherein the aerosolizable material is a rod of the aerosolizable material. The aerosol product according to any one of claims 1 to 4, wherein the nonflammable material contains a metal foil. The aerosol product according to claim 5, wherein the metal foil contains aluminum. Claimed that the coating material extends from the first end of the aerosolizable material and extends over about 20% to about 70% of the distance to the second end of the aerosolizable material. The aerosol product according to any one of 1 to 6. Claimed that the coating material extends from the first end of the aerosolizable material over about 40% to about 65% of the distance to the second end of the aerosolizable material. The aerosol product according to any one of 1 to 7. Claimed that the coating material extends from the first end of the aerosolizable material and extends over about 50% to about 60% of the distance to the second end of the aerosolizable material. The aerosol product according to any one of 1 to 8. The aerosol product according to any one of claims 1 to 9, further comprising a filter and / or a cooling element. 10. The aerosol product of claim 10, comprising a filter and a cooling element, wherein the cooling element is disposed between the aerosolizable material and the filter. An aerosol production combination comprising the aerosol product according to any one of claims 1 to 11. The aerosol-producing combination according to claim 12, which is a tobacco-heated product. The aerosol production combination according to claim 12 or 13, wherein the heater is a device that at least partially inserts the aerosol product product during use. A system comprising an aerosol-producing device and the aerosol-producing product according to any one of claims 1 to 11. A process for making an aerosol product comprising the step of coating an aerosolizable material in a coating material, wherein the coating material comprises a nonflammable material and the coating material is the first of the aerosolizable materials. A process that extends from one end of the material to about 10% to about 85% of the distance to the second end of the aerosolizable material. A method of preventing the user from igniting or igniting the aerosolizable material in the aerosol product, comprising the step of coating the aerosolizable material in the coating material, wherein the coating material is a nonflammable material. A method comprising, wherein the coating material extends from a first end of the aerosolizable material and extends over about 10% to about 85% of the distance to the second end of the aerosolizable material.

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