JP2022511601A - Tobacco packaging material with a white and bright appearance - Google Patents

Abstract

A packaging material containing an amount of about 10% to about 60% by weight of tobacco material is disclosed. Tobacco materials have a relatively large particle size. For example, the tobacco material has a particle size distribution such that more than 80% of the tobacco particles and tobacco fibers contained therein have a maximum size of more than about 0.0635 cm (about 0.025 inch). Tobacco material is combined with bleached pulp fibers and fillers and formed on the web using a papermaking process. The packaging material of the present disclosure has a unique natural appearance and less paper-like taste as compared with conventional cigarette paper. The packaging materials of the present disclosure have a brighter and whiter appearance, produce smoother smoke and produce a better appearance of ash as compared to conventional reconstituted tobacco wrapping paper. [Selection diagram] Fig. 1

Description

(Related application)
This application claims priority under US Patent Application Nos. 62/741, 898 filed October 5, 2018. The disclosures of the above applications are incorporated herein by reference.

Smoking items such as cigarettes and little cigars are traditionally manufactured by wrapping tobacco columns in packaging materials made from cigarette paper or homogenized tobacco. One end of a smoking article usually includes a filter or tip for smoking the smoking article. The filter is attached to the smoking article using a chip paper adhered to the packaging material (wrapping paper). Smoking When smoking an article, it produces mainstream smoke that is inhaled through a filter. Mainstream smoke can contain a number of components that give a particular taste to a smoking article, the taste of which includes the sensations detected not only by the smoker's sense of smell, but also by the smoker's sense of smell.

In order to produce a good product, it should generally have a white and "clean" appearance if the packaging material is made of cigarette paper. Also, the packaging material should have sufficient flammability and porosity with a material that produces mainstream smoke with the taste desired by the user. In addition, the packaging material preferably produces a cohesive ash with a white appearance.

Traditionally, those skilled in the art have attempted to produce packaging materials that improve the overall smoking experience of smoking items. Tobacco packaging materials are generally made by combining pulp fibers such as wood or flax fibers with filler particles. Tobacco wrapping materials (wrapping paper) can be manufactured to have a white color, but such wrapping paper tastes "paper-like". Homogenized tobacco packaging materials, on the other hand, generally contain more than 50% of the material from processed tobacco by-products, thus achieving a satisfactory ash appearance and flammability. I couldn't.

In view of the above, there is a demand for a packaging material for smoking articles that can improve the taste of smoking articles. In particular, there is a demand for packaging materials that can reduce the paper-like taste of conventional cigarette paper materials. In addition, there is a need for packaging materials that can be used in various types of smoking articles and have a white appearance.

In general, the present disclosure relates to packaging materials for smoking articles that have a unique natural appearance and a less paper-like taste than conventional packaging materials. According to the present disclosure, the packaging material of the present disclosure is partially composed of a tobacco material. Tobacco material is combined with pulp fibers (cellulose fibers) and fillers. According to the present disclosure, the tobacco material is in a relatively unrefined state when combined with pulp fibers (cellulose fibers) and has a relatively large particle size that has been found to provide many benefits and benefits. ..

In one embodiment, for example, the present disclosure relates to packaging materials for smoking articles. The packaging materials of the present disclosure are made from a web containing at least 10% by weight of tobacco material. The tobacco material may be substantially unrefined and / or more than 80% of the tobacco material is about 0.03048 cm (about 0.012 inch), eg 0.0381 cm (about 0.015 inch). It has a particle size distribution such that it has a super-maximum diameter. Tobacco materials include tobacco fibers, tobacco particles, or mixtures thereof. In one embodiment, more than 50% of the tobacco material, eg, more than 60% of the tobacco material, comprises a flue hardened stalk. The tobacco material is generally contained in the web in an amount of more than about 10% by weight, such as about 10% to about 60% by weight, such as about 20% to about 40% by weight.

According to the present disclosure, the tobacco material described above is combined with bleached pulp fibers and fillers when making the web. The bleached pulp fibers are contained in the web in an amount of more than about 20% by weight, such as about 20% to about 50% by weight, or, for example, about 20% to about 40% by weight. The filler, on the other hand, contains white particles and is contained in the web in an amount of more than about 10% by weight, such as about 10% to about 30% by weight, or, for example, about 15% to about 25% by weight. .. In one embodiment, the filler comprises calcium carbonate particles.

Packaging materials manufactured in accordance with the present disclosure have a bright white appearance. For example, at least one surface of the packaging material of the present disclosure exhibits an L value (whiteness value) of more than about 65, for example, more than about 70, for example, more than 78. The packaging material of the present disclosure has an excellent white color. Further, the packaging material of the present disclosure has a relatively high strength and a tensile strength of more than about 1500 cN / 15 mm.

In addition to tobacco materials, bleached pulp fibers (bleached cellulose fibers), and fillers, the packaging materials of the present disclosure can contain various other additives and components. For example, in one embodiment, the packaging material of the present disclosure contains a moisturizer and / or a combustion control agent. Moisturizers include, for example, glycerol, propylene glycol, or mixtures thereof. On the other hand, examples of the combustion control agent include citrates such as sodium citrate and potassium citrate, or mixtures thereof.

The packaging material or web produced generally has an inherent porosity of about 30 cholesterol units to about 80 cholesterol units, for example about 40 cholesterol units to about 60 cholesterol units. The web generally has a basis weight of about 30 gsm to about 50 gsm. In one embodiment, the packaging materials of the present disclosure are calendared to provide a smooth and uniform finish.

The packaging materials of the present disclosure can be incorporated into various types of smoking products. In one embodiment, the smoking article is formed by packaging a column of smokeable tobacco filler with the packaging material of the present disclosure. Examples of smoking items include cigarettes (rolled cigarettes) or cigarettes.

Other features and aspects of the invention are described in detail below.

A complete and feasible disclosure of the invention to those of skill in the art is described in more detail in the rest of the specification with reference to the accompanying drawings.

FIG. 1 is a perspective view of an embodiment of a smoking article incorporating the packaging material of the present disclosure. FIG. 2 is an exploded view of the smoking article shown in FIG. FIG. 3 is another embodiment of a smoking article incorporating a packaging material manufactured in accordance with the present disclosure.

Reference numerals used repeatedly in the present specification and drawings are intended to represent the same or similar features or elements of the present invention.

It will be appreciated by those skilled in the art that the present disclosure is merely an illustration of an exemplary embodiment and is not intended to limit a broader aspect of the invention.

In general, the present disclosure relates to packaging materials for smoking articles such as cigarettes, little cigars, cigarillos, and larger cigars. The packaging material of the present disclosure wraps a relatively unrefined tobacco material with relatively large particle or fiber size. Tobacco material, combined with other materials, provides an overall wrapping paper that tastes less paper-like than traditional tobacco wrapping paper. Particularly advantageous, the packaging materials of the present disclosure not only have an improved taste, but also have a natural appearance and a bright white color. The packaging materials of the present disclosure also produce cohesive white ash and have better burning properties than many reconstituted tobacco wrapping papers made in the past.

According to the present disclosure, the extracted tobacco material is combined with bleached pulp fibers and fillers to produce a packaging material. Optionally, the packaging materials of the present disclosure may include various other additives and components. For example, in one embodiment, a moisturizer can be added to the packaging material of the present disclosure. In another embodiment, the combustion control agent can be added to the packaging material of the present disclosure.

The tobacco material incorporated in the packaging material of the present disclosure is first subjected to an extraction process for removing a water-soluble component from the tobacco material. For example, in one embodiment, a tobacco finished paper containing tobacco stalks (eg, flue-cured stalks), fine powder, and / or other tobacco by-products obtained in the tobacco manufacturing process. ) Is first mixed with a solvent (eg, water and / or other compound). In one embodiment, the solvent comprises only water. In another embodiment, various water-miscible solvents such as alcohol (eg, ethanol) are combined with water to form an aqueous solvent. The water content of the aqueous solvent can be, in some examples, greater than 50% by weight of the solvent, in particular greater than 90% by weight of the solvent. Deionized water, distilled water, tap water, or the like may be used. The amount of solvent in the suspension can range from about 50% to about 99% by weight, and in some embodiments from about 60% to weight. It can be in an amount of about 95% by weight, in some embodiments from about 75% to about 90% by weight. However, the amount of solvent can vary depending on the nature of the solvent, the temperature at which the extraction is performed, and the type of tobacco finished paper.

After making a mixture of solvent and finished tobacco paper, some or all of the soluble fraction of the mixture is separated from the mixture. The mixture of the aqueous solvent and the finished tobacco paper is agitated using stirring, shaking, or other mixing method to increase the solubilization rate. Generally, this process is carried out for about 30 minutes to about 6 hours. The process temperature can be in the range of about 10 ° C to about 100 ° C, for example in the range of about 40 ° C to about 80 ° C.

After immersing the tobacco material in the extractant, a press machine is used to mechanically separate the tobacco material from the tobacco liquor. After separating the soluble fraction from the finished tobacco or insoluble fraction, the soluble fraction is concentrated. Soluble fractions are concentrated using any known type of concentrator, such as a vacuum evaporator. In one embodiment of the present disclosure, the soluble fraction can be in high concentration. In one embodiment, for example, the tobacco soluble fraction is evaporated to have about 20% to about 40%, for example about 25% to about 35% final brix.

The resulting concentrated tobacco-soluble fraction may be discarded, used in another process, or later on the packaging materials of the present disclosure, as described in more detail below. May be coated on.

The resulting tobacco-insoluble fraction is generally in an unpurified state. Tobacco material may include tobacco particles and tobacco fibers. Tobacco materials include, for example, stems, scraps, dust, tobacco leaves and the like. In one embodiment, the tobacco material comprises a significant amount of flue hardened stalks (flue hardened stalks). For example, in one embodiment, the tobacco material comprises flue hardened stalks in an amount of more than about 50% by weight, such as more than about 60% by weight, such as an amount of more than about 70% by weight, for example, more than about 80% by weight. Included in an amount, or, for example, in an amount greater than about 90% by weight. The presence of large amounts of flue-hardened stalks is believed to not only improve the appearance of the manufactured packaging material, but also improve various other properties, including mechanical properties and taste.

Next, the insoluble fraction or the extracted tobacco material is mixed with pulp fibers (cellulose fibers) such as wood pulp fibers. More specifically, the water-insoluble tobacco material is combined with bleached pulp fibers (bleached pulp fibers). Bleached pulp fibers (bleached cellulose fibers) can be obtained from, for example, flax, softwood, or hardwood. The purpose of bleaching pulp fibers is to lighten the color of the fibers and enhance the whiteness of the final product. In addition, the brightness of the packaging material can be improved by using the bleached pulp fiber.

Tobacco materials can generally be combined with bleached pulp fibers in a weight ratio of about 1: 5 to about 3: 1. For example, the weight ratio of tobacco material to bleached pulp fiber is generally greater than about 2: 5, eg, greater than about 4: 5% by weight, and generally less than about 2: 1, eg, less than about 3: 2. For example, it can be less than about 5: 4.

After mixing the bleached pulp fibers with the tobacco material, the resulting mixture can optionally be refined using a disc refiner. For example, the resulting mixture can be purified to control the final porosity of the packaging material.

According to the present disclosure, in addition to purifying the tobacco material and the bleached pulp fiber, the particle size of the tobacco material can be controlled by screening the tobacco material and the bleached pulp fiber. For example, in order to remove larger sized tobacco particles and tobacco fibers, only one of the mixture or the tobacco material is supplied through the screening process. In one embodiment, for example, a tobacco material or a mixture of tobacco material and bleached pulp fibers has an opening size of about 0.03048 cm to about 0.0381 cm (about 0.012 inch to about 0.015 inch). Supplied through a screening device.

The resulting tobacco material has a particle size distribution such that more than 70% of the tobacco particles and tobacco fibers contained therein have a maximum diameter of more than 0.03048 cm (0.012 inch). For example, the tobacco material has a particle size distribution such that more than about 80%, eg, more than 90%, of tobacco particles and tobacco fibers have a maximum particle size of more than about 0.03048 cm (about 0.012 inches). In another embodiment, the tobacco material has a maximum size of more than about 70%, eg, more than 80%, or, for example, more than 90% of the tobacco particles and tobacco fibers, but more than about 0.0381 cm (about 0.015 inches). Has a particle size distribution such that In yet another embodiment, the tobacco material has a maximum of more than about 70%, eg, more than 80%, or, for example, more than 90% of the tobacco particles and tobacco fibers, but more than about 0.0635 cm (about 0.025 inch). It has a particle size distribution that has dimensions.

Generally, the tobacco particles and tobacco fibers contained in the tobacco material are less than about 0.254 cm (about 0.1 inch), for example about 0.2032 cm (less than about 0.08 inch), or for example about 0.127 cm (about 0.127 inch). Has a maximum dimension of less than about 0.05 inches). For example, in one embodiment, more than about 80%, eg, more than 90%, or, for example, more than 95% of tobacco particles and tobacco fibers have a maximum dimension of about 0.127 cm (less than about 0.05 inch).

The above particle size distribution of tobacco materials is believed to provide various benefits and advantages. The above particle size distribution is believed to produce packaging materials with improved sensory properties and improved appearance in combination with the use of refined tobacco materials when combined with pulp fibers. The above particle size distribution of the tobacco material produces, for example, a packaging material having a natural appearance and exhibiting a white color.

When producing the packaging materials of the present disclosure, the filler is incorporated into the tobacco material described above mixed with bleached pulp fibers. The filler generally contains white particles. Examples of the filler particles include calcium carbonate particles, titanium oxide particles, clay particles, magnesium oxide particles, and any combination thereof.

The filler particles can have any suitable particle size and shape. For example, in one embodiment, the filler particles have a particle size greater than about 0.1 μm (micrometers), such as greater than about 0.2 μm, or, for example, greater than about 0.3 μm. The particle size of the filler particles is generally about 2 μm or less, for example about 1.5 μm or less, for example about 1 μm or less, or for example about 0.8 μm or less. In one embodiment, the median filler particle size is from about 0.1 μm to about 0.5 μm, for example from about 0.2 μm to about 0.4 μm. The filler particles can further improve the whiteness (whiteness) and brightness of the manufactured packaging material. In addition, the filler particles can also regulate the final porosity and flammability of the packaging material.

In one embodiment, the filler incorporated into the packaging material of the present disclosure consists of calcium carbonate particles. In one embodiment, the calcium carbonate particles may include precipitated particles. The calcium carbonate particles can, in one embodiment, have a rhombohedral shape. In another embodiment, the calcium carbonate particles can have a non-isometric shape with an average diameter of about 50 nm (nanometers) to about 3 μm. The particles can have, for example, an aspect ratio generally greater than about 1, eg, greater than 2, or, for example, greater than 5, generally less than about 15, eg, less than about 12, or, for example, less than 10.

The filler is combined with the tobacco material and the bleached pulp fiber in the presence of water to form a slurry. The formed fiber slurry is then used to form a continuous sheet. For example, in one embodiment, the fiber slurry is fed to a papermaking process that can include forming wires, gravity drains, suction drains, felt presses, and dryers such as Yankee dryers and drum dryers. For example, in one embodiment, the fiber slurry is formed into a continuous sheet on a Fourdrinier table.

In one embodiment, for example, the fiber slurry is placed on a porous forming surface and formed on a sheet (wet raid web). Excess water is removed by gravity drain and / or suction drain. In addition, various presses can be used to facilitate the removal of water. After the formed sheet is dried, further treatment can be applied.

In one embodiment, for example, a moisturizer can be incorporated into the packaging material. Moisturizers include, for example, glycerol, propylene glycol, or a combination thereof.

In addition to the moisturizer, one or more combustion control agents can be incorporated into the manufactured packaging material or wrapping paper. Examples of the combustion control agent include salts of carboxylic acids, salts of alkali metals, and / or salts of alkaline earth metals. For example, combustion control agents include acetic acid, citric acid, malic acid, lactic acid, tartrate acid, carbonic acid, formic acid, propionic acid, glycolic acid, fumaric acid, oxalic acid, malonic acid, succinic acid, nitrate, phosphoric acid, or theirs. Any combination of salts can be mentioned. Specific combustion control agents that can be used include potassium citrate, sodium citrate, potassium succinate, sodium succinate, or any combination thereof.

Optionally, the packaging material produced can also be treated with a tobacco-soluble moiety, such as a tobacco soluble portion separated from the insoluble fraction. Tobacco-soluble portions can be applied to the web using a variety of application methods such as spraying, the use of size presses, and saturating. In one embodiment, the tobacco soluble moiety is applied to the formed web in an amount greater than about 5% by weight, such as an amount greater than about 10% by weight, such as an amount greater than about 15% by weight, based on the dry weight of the web. , Or, for example, in an amount greater than about 18% by weight. Generally, the tobacco soluble moiety or tobacco extract is applied to the packaging material in an amount of about 20% or less based on the dry weight of the web.

In addition to moisturizers, combustion controls, and / or tobacco extracts, packaging materials produced in accordance with the present disclosure can be treated with a variety of other agents and ingredients. For example, in one embodiment, one or more flavoring agents can be added to the web.

The finished web or packaging material is dried and then rolled into rolls. For example, in one embodiment, the dried sheet is wound onto a bobbin having a width of about 15 mm to about 54 mm, for example about 19 mm to about 28 mm. Before winding onto the bobbin, the web may be calendared to improve the smoothness and runnability of the packaging material. In one embodiment, for example, a multi-nip calendar device may be used.

Packaging materials manufactured in accordance with the present disclosure generally contain an amount of tobacco material greater than about 10% by weight. For example, the tobacco material is contained in the packaging material in an amount of more than about 15% by weight, for example, in an amount of more than about 20% by weight, or, for example, in an amount of more than about 25% by weight. The tobacco material is generally contained in the packaging material in an amount of less than about 60% by weight, such as less than about 50% by weight, such as less than about 40% by weight, or, for example, less than about 30% by weight.

Bleached pulp fibers and fillers are contained in the packaging materials of the present disclosure in various concentrations depending on the particular application and desired results. For example, bleached pulp fibers are generally in an amount greater than about 20% by weight, such as in an amount greater than about 25% by weight, and generally in an amount less than about 50% by weight, such as an amount less than about 40% by weight. Or, for example, in an amount less than about 35% by weight, contained in the packaging material. The filler is generally in an amount greater than about 10% by weight, such as in an amount greater than about 15% by weight, or, for example, in an amount greater than about 20% by weight, and generally in an amount less than about 35% by weight, such as about. It is contained in the packaging material in an amount of less than 30% by weight, or, for example, less than about 25% by weight.

When a moisturizer and / or a combustion control agent is contained in the packaging material of the present disclosure, the moisturizer and / or the combustion control agent is generally contained in an amount of less than about 5% by weight, for example, less than about 3% by weight, for example, about. It is contained in the packaging material in an amount of less than 2% by weight, for example less than about 1.5% by weight, or, for example, less than about 1% by weight. The moisturizer and / or combustion control agent is generally contained in the packaging material in an amount of more than about 1% by weight, for example, about 1.5% by weight or more.

Packaging materials manufactured in accordance with the present disclosure have excellent mechanical properties and a very favorable aesthetic appearance. Generally, the packaging materials of the present disclosure have a basis weight of about 30 gsm, such as about 35 gsm, or, for example, more than about 40 gsm. The basis weight of the packaging material of the present disclosure is generally less than about 55 gsm, for example less than about 50 gsm, or for example less than about 45 gsm. Within the above basis weight range, the packaging materials of the present disclosure have very high strength, greater than about 1,000 cN / 15 mm, such as more than about 1,500 cN / 15 mm, and generally about 3. It has a tensile strength of less than 000 cN / 15 mm. Tensile strength can be measured using ASTM test D828-97.

In addition to the above physical properties, packaging materials manufactured in accordance with the present disclosure can exhibit a unique natural appearance. In addition, the packaging material (wrapping paper) of the present disclosure can have a brighter and whiter appearance than many conventional tobacco wrapping papers made from homogenized tobacco materials.

In one embodiment, in order to characterize the color of at least one side of the packaging material of the present disclosure, the color of at least one side of the packaging material of the present disclosure is L, a using the Hunter Lab color scale. By specifying the values of, and b, it can be expressed objectively. The Hunter Lab Color Scale was created by Richard S. Hunter in 1948 and is described in "The Measurement of Appearance," 2nd Addition, John Wiley and Sons, New York, New York, 1987. " There is. This color scale describes all colors visible to the human eye and is created to serve as a device-independent model and is used as a reference.

The three coordinates of the Hunter Lab scale are color brightness (L = 0 indicates black, L = 100 indicates diffuse white; mirror-reflected white may be higher), between red / magenta and green. Represents a position (a, a negative value indicates green, a positive value indicates magenta), a position between yellow and blue (b, a negative value indicates blue, a positive value indicates yellow).

According to the present disclosure, at least one side of the packaging material (wrapping paper) of the present disclosure generally has an L value (whiteness) of more than about 60, for example, about 70 or more, for example, about 75 or more, or for example, about 78 or more. Value). When the packaging material of the present disclosure is treated with a tobacco-soluble moiety or a tobacco extract, the L value of the packaging material is slightly lowered. For example, when the packaging material of the present disclosure is treated with a tobacco soluble moiety, the packaging material of the present disclosure can have an L value of more than about 65, for example more than about 70. On the other hand, when the packaging material of the present disclosure is not treated with the tobacco-soluble portion, the L value of the packaging material of the present disclosure is generally more than about 75, for example, more than about 78. Further, the L value of the packaging material of the present disclosure is generally less than about 98, for example, less than about 95.

In addition to exhibiting a bright white color, the packaging materials of the present disclosure have a mottled appearance due to the presence of larger tobacco particles and fibers. The speckled appearance due to the presence of tobacco material creates a unique natural appearance, combined with an increased whitening appearance.

The packaging materials of the present disclosure also produce smoking articles with better taste characteristics. For example, the packaging material of the present disclosure has less paper-like taste than conventional cigarette paper. In addition, the packaging materials of the present disclosure produce smoother smoke. In addition, the packaging materials of the present disclosure produce cohesive ash with an improved appearance compared to conventional tobacco packaging materials.

Packaging materials manufactured in accordance with the present disclosure can be incorporated into various types of smoking articles. An example of such a smoking article is shown in FIGS. 1 and 2 for illustration purposes only. As shown, the smoking article 10 includes a smokeable column 12. The smoking article 10 also includes a packaging material 14 that defines the outer peripheral surface 16 when wrapped around a smokeable column 12. The smoking article 10 may also include a filter 26 surrounded by a piece of paper.

The smoking article 10 shown in FIGS. 1 and 2 generally contains a cigarette. However, in other embodiments, the packaging materials of the present disclosure can be used to make cigarillos and little cigars. For example, with reference to FIG. 3, an example of Cigarillo 30 is shown. Cigarillo 30 includes a column of smokeable filler 32 surrounded by a packaging material 34 manufactured in accordance with the present disclosure. Optionally, the cigarillo 30 can include a plastic chip 36.

Those skilled in the art will understand that the present invention can be modified or modified in various ways without departing from the spirit of the present invention. In addition, it should be understood that aspects of the various embodiments can be interchanged in whole or in part thereof. In addition, those skilled in the art intend to limit the scope of the invention described in the appended claims in any way, as the above detailed description and examples are for illustration purposes only. You can see that there isn't.

Claims (20)

A packaging material for smoking goods
Contains a web containing at least 10% by weight of tobacco material,
The tobacco material contains tobacco particles or tobacco fibers, has a particle size distribution such that more than 80% of the tobacco material has a maximum diameter of more than 0.03048 cm (0.012 inches), and the bleached pulp fibers and Mixed with filler,
The bleached pulp fiber is contained in the web in an amount of more than 20% by weight.
The packaging material comprises white particles and is contained in the web in an amount of more than 10% by weight. The packaging material according to claim 1.
A packaging material characterized in that at least one surface of the packaging material has a white color having an L value of more than 65. The packaging material according to claim 1 or 2.
The web is a packaging material containing the tobacco material in an amount of 10% by weight to 60% by weight, or 20% by weight to 40% by weight. The packaging material according to any one of claims 1 to 3.
A packaging material characterized in that more than 50% of the tobacco material contains a flue hardened stalk. The packaging material according to any one of claims 1 to 4.
The web is a packaging material containing the bleached pulp fiber in an amount of 20% by weight to 50% by weight, or 20% by weight to 40% by weight. The packaging material according to any one of claims 1 to 5.
The web is a packaging material containing the filler in an amount of 10% by weight to 30% by weight, or 15% by weight to 25% by weight. The packaging material according to any one of claims 1 to 6.
The filler is a packaging material containing calcium carbonate particles. The packaging material according to any one of claims 1 to 7.
The filler is a packaging material having a particle size of 0.1 μm to 2 μm. The packaging material according to any one of claims 1 to 8.
The packaging material is a packaging material further containing a moisturizer. The packaging material according to claim 9.
The moisturizer is a packaging material containing glycerol, propylene glycol, or a combination thereof. The packaging material according to any one of claims 1 to 10.
The packaging material is a packaging material further containing a combustion control agent. The packaging material according to claim 11.
The combustion control agent is a packaging material containing citrate. The packaging material according to any one of claims 1 to 12.
The web is a packaging material having a porosity of 30 cholesterol units to 80 cholesterol units or a porosity of 40 cholesterol units to 60 cholesterol units, and having a basis weight of 30 gsm to 50 gsm. The packaging material according to any one of claims 1 to 13.
The web is a packaging material having a tensile strength of more than 1500 cN / 15 mm. The packaging material according to any one of claims 1 to 14.
The web is a packaging material characterized by being calendar-processed. The packaging material according to any one of claims 1 to 15.
A packaging material characterized in that more than 90% of the tobacco material has a maximum diameter of more than 0.0381 cm (0.015 inch). The packaging material according to any one of claims 1 to 16.
The web is treated with a tobacco-soluble moiety extracted from the tobacco material with an aqueous solvent.
The tobacco-soluble portion is a packaging material characterized by being locally applied to the web. The packaging material according to any one of claims 1 to 17.
The tobacco material is a packaging material having a particle size distribution such that more than 80% of the tobacco material has a maximum diameter of more than 0.0635 cm (0.025 inch). The packaging material according to any one of claims 1 to 18.
A packaging material characterized in that one surface of the packaging material has an L value of more than 70. The packaging material according to any one of claims 1 to 19.
The web is a packaging material comprising a wet raid web.

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