WO2022044622A1

WO2022044622A1 - Filter for tobacco product, and tobacco product and electrically-heated tobacco product having said filter

Info

Publication number: WO2022044622A1
Application number: PCT/JP2021/026994
Authority: WO
Inventors: 拓也赤羽; 文貴寺尾
Original assignee: 日本たばこ産業株式会社
Priority date: 2020-08-31
Filing date: 2021-07-19
Publication date: 2022-03-03
Also published as: JP7492589B2; JPWO2022044622A1; EP4205568A1

Abstract

A filter for a tobacco product, the filter comprising a granular adsorbing agent containing an oil or fat having a melting point of 50°C or higher, wherein the reduction rate of the air permeation resistance of the filter per 120 mm is at least 5% when the filter is heated at 100°C for 10 minutes.

Description

Filters for tobacco products, as well as tobacco products and electrically heated tobacco products that have them.

The present invention relates to a filter for a tobacco product, a tobacco product having the filter, and an electrically heated tobacco product.

Tobacco products consisting of a tobacco rod part with a tobacco engraving, a mouthpiece part with a filter, and members such as chip paper for wrapping these are cigarettes (cigarettes) and cigarettes that have been used for many years. It has been attracting attention as a substitute in recent years, and is used in tobacco flavor suction articles for electrically heated tobacco products that utilize electric heating without burning.
Ordinary cigarettes (cigarettes) are made by chopping dried tobacco leaves to a width of about 1 mm, adding fragrances, moisturizers, and appropriate moisture, and wrapping them in a columnar shape mainly with a wrapper made of paper. It is made by connecting a rod and a mouthpiece rod made by winding fibers made of cellulose acetate or folds in a columnar shape with a wrapper made of paper, and connecting them with lining paper at the ends. ing. When using a normal cigarette, the user ignites the end of the tobacco rod with a lighter or the like and smokes by sucking from the end of the mouthpiece. The fire part at the tip of the tobacco rod burns at a temperature exceeding 800 ° C.
On the other hand, a normal heat-not-burn tobacco product comprises a cylindrical cigarette flavor suction article for a cylindrical heat-not-burn tobacco product similar to a normal cigarette, and a heating device having a battery, a controller, a heater, and the like. There are two types of heaters, one is by electric resistance and the other is by IH. For the heater by electric resistance, the contact point with the non-combustion heating type tobacco flavor suction article should be heated from the outside of the columnar non-combustion heating type tobacco flavor suction article. In some cases, needle-shaped or blade-shaped ones are inserted into the tobacco filling layer from the tip of a non-combustion-heated tobacco flavor suction article.

General cigarettes and electroheated tobacco products have filters having functions such as adjusting the amount of air mixed when sucking aerosols, reducing flavor, and reducing nicotine and tar. As for the filter, a technique of adding an additive is known in order to impart a function different from these basic functions.
According to Patent Document 1, oil stains are suppressed and hydrocarbons in a specific range are adsorbed by applying a granular adsorbent containing a granular base material, fats and oils having a temperature above a specific temperature, and a polyol to a filter for smoking articles. Techniques that can impart sexual effects are disclosed.

International Publication No. 2018/008608

The granular adsorbent disclosed in Patent Document 1 requires a base material such as dextrin or powdered sugar in addition to fats and oils that can impart the effect of adsorbing hydrocarbons in a specific range and suppressing oil stains. There is a problem that it is costly to obtain a desired effect because it is a component of. Further, the presence of such a base material causes the granules to become brittle, and fine powder adheres to the manufacturing apparatus during filter manufacturing, so that there is a problem that cleaning must be performed frequently. Further, since the granules are brittle, there is a problem that the size of the granules changes during transportation or when the filter is manufactured, and the variation in aeration resistance becomes large.
Therefore, in order to solve the above-mentioned problems, in the present invention, the same effect obtained by the conventional oil-containing adsorbent, but the cost can be suppressed, and the filter for tobacco products having improved brittleness, and An object of the present invention is to provide a tobacco product having this and an electrically heated tobacco product.

The present inventors have a structure that has a function of removing hydrocarbons in a specific range and contains fats and oils having a melting point of a specific temperature or higher, but does not contain a base material such as dextrin or powdered sugar. We have found that the above-mentioned problems can be solved by using a filter provided with the above, and have arrived at the present invention.

That is, the gist of the present invention is as follows.
[1] A tobacco product having a melting point of 50 ° C. or higher and containing a granular adsorbent containing oils and fats, wherein the reduction rate of aeration resistance per 120 mm when heated at 100 ° C. for 10 minutes is 5% or more. Filter for.
[2] The filter for tobacco products according to [1], wherein the average particle size of the adsorbent is 355 μm or more and 1400 μm or less.
[3] The filter for tobacco products according to [1] or [2], wherein the content of the adsorbent in the filter medium contained in the filter for tobacco products is 5% by weight or more and 60% by weight or less.
[4] The tobacco product according to any one of [1] to [3], wherein the content of fats and oils having a melting point of 50 ° C. or higher is more than 60% by weight when the total amount of the adsorbent is 100% by weight. Filter for.
[5] The filter for tobacco products according to any one of [1] to [4], wherein the fat and oil having a melting point of 50 ° C. or higher is a cured fat and oil having a melting point of 50 ° C. or higher.
[6] The hydrogenated oil having a melting point of 50 ° C. or higher is selected from hydrogenated rapeseed extremely hydrogenated oil, rapeseed extremely hydrogenated oil, palm extremely hydrogenated oil, soybean extremely hydrogenated oil, beef fat extremely hydrogenated oil, and pork fat extremely hydrogenated oil1. The filter for a tobacco product according to [5], which is more than a seed.
[7] A tobacco product having the filter for the tobacco product according to any one of [1] to [6].
[8] The tobacco product according to [7], which is for cigarettes.
[9] The tobacco product according to [7], which is for an electrically heated tobacco product.
[10] An electrically heated device including a heater member, a battery unit as a power source for the heater member, and a control unit for controlling the heater member is inserted so as to be in contact with the heater member. An electrically heated tobacco product composed of the tobacco product according to [9].

According to the present invention, a filter for a tobacco product having the same effect as that obtained by a conventional fat-containing adsorbent, but with reduced cost and improved brittleness, a tobacco product having the same, and electric heating thereof. Formula tobacco products can be provided.

It is a graph which shows the reduction rate of the aeration resistance by heating in the filter used in an Example.

The embodiments of the present invention will be described in detail below, but these explanations are examples (representative examples) of the embodiments of the present invention, and the present invention is not limited to these contents as long as the gist thereof is not exceeded.
Further, in the present specification, when a numerical value or a physical property value is inserted before and after using "-", it is used as including the values before and after that.
Further, in the present specification, "plurality" means two or more unless otherwise specified.

<Filter for tobacco products>
The tobacco product filter (also simply referred to as "tobacco product filter" or "filter") according to an embodiment of the present invention is a filter containing a granular adsorbent containing fats and oils having a melting point of 50 ° C. or higher. , A filter for tobacco products, wherein the reduction rate of the ventilation resistance per 120 mm when heated at 100 ° C. for 10 minutes is 5% or more.

Since the above-mentioned adsorbent contains fats and oils, it has a function of removing hydrocarbons in a specific range, and since the melting point of the fats and oils is 50 ° C. or higher, oil stains before use can be suppressed. Furthermore, since the base material such as dextrin and powdered sugar is not an essential component, not only the cost can be kept low, but also the brittleness is improved, so that fine powder adheres to the manufacturing equipment during filter manufacturing. Since it is difficult to clean, it is easy to clean, and further, it is difficult for the granule size to change during transportation or filter manufacturing, so that the variation in ventilation resistance can be reduced. Since the fat and oil melts at 50 ° C., they exude into the filter when heated. Therefore, the rate of decrease in aeration resistance due to heating becomes large, and as a result, the change in flavor during use becomes large. Specifically, when the fats and oils are melted, the fats and oils seep into the filter and the aeration resistance is lowered, and the degree of the filtering ability of the flavor component by the filter is also lowered, so that the change in flavor during use becomes large. The function of removing hydrocarbons in a specific range and the effect of suppressing oil stains by the adsorbent containing fats and oils are as disclosed in International Publication No. 2018/008608. The function of removing hydrocarbons in a specific range is a function caused by the inclusion of fats and oils, and the effect of suppressing oil stains is an effect caused by setting the melting point of fats and oils to 50 ° C. or higher. Further, when the case of using the adsorbent containing the conventional base material and the case of using the adsorbent not containing the base material according to the present embodiment are compared with the same weight, the base material according to the present embodiment is compared. Since the relative amount of fat and oil component is larger, the range of exudation of melted fat and oil from the entire filter during heating becomes larger (the surface area of fat and oil becomes larger), and the function of removing hydrocarbons in a specific range and ventilation are increased. The effect of reducing resistance is also excellent.
Further, the electrically heated tobacco product tends to have a larger decrease in flavor in the latter half of use with respect to the initial use as compared with the cigarette, but by using the filter according to the present embodiment, the reduction rate of the aeration resistance after heating tends to be larger. Therefore, it is possible to reduce the decrease in flavor in the latter half of use.
Further, in the production of a conventional adsorbent containing a base material, at least a step of mixing raw materials including the base material, a step of forming granules, and a step of selecting the particle size are required, but the adsorbent containing no base material is used. In the production, since the mixing process of the raw materials including the base material is not an indispensable process, the filter according to the present embodiment can easily simplify the production process and can keep the cost low.

As for the aspect of the filter, other configurations are not particularly limited as long as it contains the above-mentioned adsorbent, and a known aspect may be adopted. As a known aspect, for example, cellulose acetate tow is processed into a columnar shape. Can be mentioned. The single-thread fineness and total fineness of the cellulose acetate tow are not particularly limited, but in the case of a mouthpiece member having a circumference of 22 mm, the single-thread fineness may be 1.5 denier or more and 12.0 denier or less. It may be denier or more and 8 denier or less, and the total fineness may be 12,000 denier or more and 50,000 denier or less, or 15,000 denier or more and 50,000 denier or less. In the present specification, the unit of single fineness "denier" represents the weight of one fiber per 9000 m (g / 9000 m), and the unit of total fineness "denier" is the weight of the total number of fibers per 9000 m (g / g /). 9000m) is represented. The cellulose acetate tow is displayed as, for example, 1.9Y44000, which has a single fineness of 1.9 denier, a fiber cross section of Y-shape, and a total fineness of 44000 denier, as is well known to those skilled in the art. It means that there is. The cross-sectional shape of the cellulose acetate tow fiber may be circular, elliptical, Y-shaped, I-shaped, R-shaped or the like. Further, the cellulose acetate tow can be composed of cellulose acetate having an acetyl substitution degree of 2.4 to 2.5 (diacetate). Further, in the case of a filter filled with cellulose acetate tow, triacetin may be added in an amount of 5% by weight or more and 10% by weight or less based on the weight of the cellulose acetate tow in order to improve the hardness of the filter.
Instead of the acetate filter, a paper filter filled with sheet-shaped pulp paper may be used.
Conditions such as the size of the filter, additives other than the adsorbent that can be contained, and characteristics other than the ventilation resistance can be appropriately designed.

Hereinafter, the conditions of the adsorbent and the filter will be specifically described.
The adsorbent is not particularly limited as long as it contains fats and oils having a melting point of 50 ° C. or higher and is in the form of granules.
By containing fats and oils having a melting point of 50 ° C. or higher, it is possible to prevent oil stains around the adsorbent before use. When the melting point is less than 50 ° C. and a liquid fat or oil is contained at room temperature, it is not possible to prevent oil stains around the adsorbent before use. Normally, when a filter for tobacco products is manufactured and then stored in a warehouse, etc., the temperature inside the warehouse, etc. may reach 40 ° C or higher in the summer, and when general fats and oils with a low melting point are used. On the other hand, oil stains can be suppressed when oils and fats having a melting point of 50 ° C. or higher are used. That is, the filter for tobacco products according to this embodiment is unlikely to cause product deterioration even under severe storage conditions.
The type of fat or oil having a melting point of 50 ° C. or higher is not particularly limited, but a cured fat or oil having a melting point of 50 ° C. or higher can be preferably mentioned.
The cured fat and oil is a processed fat and oil obtained by adding hydrogen to a fat and oil that is liquid at room temperature as a raw material, and in the present embodiment, it is preferable to use a cured fat and oil having a melting point of 50 ° C. or higher.
As the hydrogenated oil having a melting point of 50 ° C. or higher, one or more selected from hydrogenated rapeseed extremely hydrogenated oil, rapeseed extremely hydrogenated oil, palm extremely hydrogenated oil, soybean extremely hydrogenated oil, beef fat extremely hydrogenated oil, pork fat extremely hydrogenated oil, etc. The edible hydrogenated oil can be mentioned, and in particular, from the viewpoint of the adsorption characteristics of the components in the smoke, the highly hydrogenated oil of high ercin rapeseed is preferable.
As the fat and oil having a melting point of 50 ° C. or higher, only one type may be used, or two or more types may be mixed and used in any type and ratio.
The content of fats and oils having a melting point of 50 ° C. or higher in the adsorbent of the present embodiment is more than 60% by weight from the viewpoint of increasing the reduction rate of aeration resistance due to heating when the total amount of the adsorbent is 100% by weight. It is preferably 65% by weight or more, more preferably 70% by weight or more, particularly preferably 80% by weight or more, and further preferably 85% by weight or more, 90% by weight. % Or more, 95% by weight or more, and from the viewpoint of ease of granulation, it is usually 100% by weight or less, preferably 95% by weight or less. By setting the content of the above-mentioned adsorbent to more than 60% by weight, the brittleness of the adsorbent is improved and the melting of fats and oils during heating is promoted as compared with the embodiment using the conventional adsorbent. Therefore, the reduction rate of the ventilation resistance can be increased.
The range of the content as described above is also preferable from the viewpoint of granulating the shape of the adsorbent.

The adsorbent may contain a polyol, and examples thereof include glycols such as glycerin and propylene glycol, sugars, and sugar alcohols. Of these, a polyol that is liquid at room temperature is preferable, and it is even more preferable that it contains at least glycerin. The polyol can improve the feeling of smoke volume by its addition, specifically, when the polyol is present inside the above granules, the polyol is exposed to the outside and vaporized when the granules are dissolved by heating. , The feeling of smoke volume is improved. In particular, at the time of use, since the fat and oil melts in the latter half of the use, it is possible to inevitably improve the feeling of smoke volume in the latter half of the use.

The amount of the polyol used in the adsorbent can be appropriately determined by those skilled in the art, and for example, 0.050 parts by weight or more, 0.100 parts by weight or less, preferably 0.055 parts by weight with respect to 1 part by weight of fats and oils. It can be used in an amount of 0 parts by weight or more and 0.080 parts by weight or less, more preferably 0.060 parts by weight or more and 0.075 parts by weight or less.

As is clear from the following examples, the adsorbent has an excellent ability to adsorb hydrocarbons having 10 or more carbon atoms and 20 or less carbon atoms. This is because the adsorbent of the present embodiment uses the composition described above, particularly the fat and oil having a melting point of 50 ° C. or higher.
As the size of the granular adsorbent, an embodiment in which the size of the particles classified by the sieve is 250 μm or more and 1400 μm or less can be mentioned, and an embodiment in which 250 μm or more and 500 μm or less can be mentioned. Examples thereof include an embodiment having a size of 1400 μm or less, and a mode having a size of 355 μm or more and 600 μm or less is particularly preferable. The size of the particles classified by these sieves can be treated as a minimum particle diameter and a maximum particle diameter, or can be treated as a range of average particle diameters. The size of the adsorbent can be changed by adjusting the amount of the raw material used.
Further, the granular adsorbent may be used as a product obtained by aggregating granules and molding them into a certain size.
In addition to the above-mentioned components, any other component such as a fragrance may be added to the adsorbent. The content of such an optional component may be 20% by weight or less when the total amount of the adsorbent is 100% by weight, and is preferably 10% by weight or less.
However, it is preferable that the adsorbent does not contain a base material such as dextrin or powdered sugar from the viewpoint of suppressing the cost and improving the brittleness. In the present specification, the base material is a material that becomes a core of an adsorbent for adsorbing fats and oils, and specific examples thereof include dextrin, starch, powdered sugar, and crystalline cellulose.

The adsorbent can be produced, for example, by a production method including the following steps.
The method for producing the adsorbent of the present embodiment includes a crushing step of crushing fats and oils having a melting point of 50 ° C. or higher using an oscillator or the like, and a sizing step of sizing the crushed fats and oils within a desired particle size range. Examples thereof include. When a material other than fats and oils such as a polyol is used, for example, a melting step of heating and melting fats and oils having a melting point of 50 ° C. or higher at a temperature higher than the melting point, and after adding a material other than fats and oils and stirring. Examples thereof include a cooling step of cooling. After cooling, the same steps as described above may further include a step of crushing the solidified granule mass and a step of sizing the crushed granule mass.
Examples of the temperature for heating fats and oils having a melting point of 50 ° C. or higher include 70 ° C. or higher and 80 ° C. or lower.

Hereinafter, the conditions of the filter will be described, but the mode in which the filter contains the above-mentioned adsorbent is not particularly limited and may be contained in any mode.
The content of the adsorbent in the filter medium contained in the adsorbent is not particularly limited, but the cost can be suppressed and the brittleness is improved while having the function of removing hydrocarbons in a specific range and the effect of suppressing oil stains. Moreover, from the viewpoint of being able to reduce the ventilation resistance, it is usually 5% by weight or more, preferably 10% by weight or more, more preferably 15% by weight or more, and more preferably 20% by weight or more. Further, it is usually 60% by weight or less, preferably 55% by weight or less, more preferably 50% by weight or less, still more preferably 45% by weight or less. If the adsorbent content is too low, the rate of decrease in aeration resistance due to heating will be low and the change in flavor will be small, and if the adsorbent content is too high, the molten adsorbent after heating will be used in the filter. Since it exudes to the surface, the appearance deteriorates. In addition, the "filter material" in this specification is a material of a member excluding the winding paper from the filter (specifically, a material having a filtering ability made of fibers such as acetate tow, and any addition that can be added to the material. Material including things). Moreover, since the above-mentioned content is substantially the same as the addition amount, the content and the addition amount may be treated synonymously.
Further, the weight of the adsorbent per filter length of 10 mm (filter circumference 16.8 to 25.8 mm) is not particularly limited, but the cost is reduced while having a hydrocarbon removing function in a specific range and an oil stain suppressing effect. From the viewpoint of being able to suppress, improve brittleness, and reduce aeration resistance, it is usually 5.0 mg / 10 mm or more, preferably 7.5 mg / 10 mm or more, and 10.0 mg / 10 mm /. It is more preferably 10 mm or more, further preferably 12.5 mg / 10 mm or more, and usually 60.0 mg / 10 mm or less, preferably 57.5 mg / 10 mm or less, 55.0 mg /. It is more preferably 10 mm or less, and even more preferably 52.5 mg / 10 mm or less. The weight of the adsorbent per area of the cross section with respect to the circumferential direction of the filter is a value obtained by dividing the weight of the adsorbent contained in the filter by the axial length of the filter.

The form of the filter is not particularly limited, and may be a plain filter including a single filter segment, a multi-segment filter including a plurality of filter segments such as a dual filter or a triple filter, and the like. When the filter consists of a plurality of segments, the above adsorbent may be contained in at least one segment. The adsorbent may be added so as to be uniformly dispersed throughout the filter, may be added collectively at desired locations, or may be added to the space provided between the filter segments. May be done.
The shape of the filter is not particularly limited, and a known shape can be adopted, usually a columnar shape, and the following aspects can be used.
Further, the filter may be provided with sections such as a cavity (center hole or the like) or a recess in which the cross section in the circumferential direction is hollow (cavity). From the viewpoint of obtaining the effect of the present invention, when a cavity having a hollow such as a center hole is provided, it is preferable to add an adsorbent to a member of the filter other than the cavity.

The aeration of the filter may be performed by a known method, for example, using pre-perforated packaging material or air permeable packaging material, or laser perforating the packaging material and chip overlap (if any). It can be done by using. Ventilation full-tip overlaps may also be air permeable in nature or may be vented. In breathable products where both packaging and chip overlap are present, the ventilation of the overlap is preferably aligned with the location of the ventilation of the packaging material (eg, plug wrap). Vents that penetrate the filter packaging, through the chip overlap, or both at the same time, may be formed by laser perforation during the manufacture of the filter.

The axial cross-sectional shape of the filter is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more, 9.0 mm or less, and 4.5 mm or more. , 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. If the cross section is not circular, the above diameter is assumed to be a circle having the same area as the area of the cross section, and the diameter in the circle is applied.
The peripheral length of the cross-sectional shape in the axial direction of the filter can be appropriately changed according to the size of the product, but is usually 14.0 mm or more and 27.0 mm or less, and 15.0 mm or more and 26.0 mm or less. It is preferably 16.0 mm or more, and more preferably 25.0 mm or less.
The axial length of the filter can be appropriately changed according to the size of the product, but is usually 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and 20.0 mm or more. It is more preferably 30.0 mm or less. Normally, the filter is sold in a state where the length in the axial direction is about 120 mm, and from that state, the filter is cut to a desired length according to the size of the product.

The density of the filter is not particularly limited, but is usually 0.10 g / cm ³ or more and 0.25 g / cm ³ or less, and preferably 0.11 g / cm ³ or more and 0.24 g / cm ³ or less. It is more preferably 0.12 g / cm ³ or more and 0.23 g / cm ³ or less.

The aeration resistance per 120 mm filter length when the filter is heated at 100 ° C. for 10 minutes is not particularly limited, but is usually 50 mm WG (water gauge) or more, 300 mm WG or less, preferably 70 mm WG or more and 280 mm WG or less, and 90 mm WG or less. It is more preferable that the resistance is 260 mmWG or less.
The air flow resistance of the filter is measured according to the ISO standard method (ISO 6565: 2015), for example, using a filter air flow resistance measuring instrument manufactured by Cerulean. The filter ventilation resistance is such that air with a predetermined air flow rate (17.5 cc / min) is passed from one end face (first end face) to the other end face (second end face) in a state where air is not permeated on the side surface of the filter. Refers to the pressure difference between the first end face and the second end face when flowing. The unit is generally expressed in mmWG. It is known that the relationship between the filter ventilation resistance and the filter length is proportional to the length range (length 5 mm to 200 mm) that is normally carried out, and if the length is doubled, the filter ventilation resistance is increased. Double.
The method of heating at 100 ° C. for 10 minutes is not particularly limited. For example, it may be carried out by putting the filter in a dryer at 100 ° C., and the above-mentioned ventilation is measured by measuring the ventilation resistance of the filter before and after putting it in the dryer. The rate of decrease in resistance may be obtained.

The rate of decrease in aeration resistance per 120 mm filter length when the filter is heated at 100 ° C. for 10 minutes is not particularly limited as long as it is 5% or more, but it is preferably 10% or more from the viewpoint of flavor change. % Or more is more preferable, 20% or more is further preferable, 25% or more is particularly preferable, 90% or less is preferable, 80% or less is more preferable, and 70% or less. It is more preferably% or less, and particularly preferably 60% or less.

The embodiment of the capsule (also referred to as "additive release container" in the art) is not particularly limited and known embodiments may be adopted, for example, crushable additive release containing a crushable outer shell such as gelatin. It can be a container. In this case, when the capsule is destroyed before, during or after use by the user of the tobacco product, it releases the liquid or substance (usually a flavoring agent) contained in the capsule and then the liquid or The substance is transmitted to tobacco smoke during use of the tobacco product and to the surrounding environment after use.
The form of the capsule is not particularly limited, and may be, for example, a easily destructible capsule, and the shape thereof is preferably a sphere. The additive contained in the capsule may contain any of the above-mentioned additives, but it is particularly preferable to include a flavoring agent and activated carbon. Also, as an additive, one or more materials that help filter smoke may be added. The form of the additive is not particularly limited, but is usually liquid or solid. The use of capsules containing additives is well known in the art. In addition, easily destructible capsules and methods for producing the same are well known in the art.
The flavoring agent may be, for example, menthol, spearmint, peppermint, fenugreek, cloves, medium chain fatty acid triglyceride (MCT), or a combination thereof.

From the viewpoint of improving the strength and the structural rigidity, the filter may include a winder paper (filter plug winder paper) for winding the material of the filter. The aspect of the roll paper is not particularly limited and may include a seam containing one or more rows of adhesive. The adhesive may include a hot melt adhesive, further the hot melt adhesive may contain polyvinyl alcohol. Further, when the filter consists of two or more segments, it is preferable that the filter wrapper winds these two or more segments together.
The material of the roll paper is not particularly limited, and a known material can be used, and a filler such as calcium carbonate may be contained.
The thickness of the roll paper is not particularly limited, and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less.
The basis weight of the roll-up paper is not particularly limited, and is usually 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less.
The roll paper may or may not be coated, but it is preferably coated with a desired material from the viewpoint of imparting functions other than strength and structural rigidity.

The filter can be produced by a known method. For example, when a synthetic fiber such as acetate tow is used, the filter can be produced by spinning a polymer solution containing a polymer and a solvent and crimping the polymer solution. As the method, for example, the method described in International Publication No. 2013/067511 can be used. The timing of adding the above-mentioned adsorbent is not particularly limited, and may be added to the fibers after spinning and before crimping, during crimping, or after crimping (for example). For example, it may be added when connecting a plurality of filter segments. Further, the adsorbent may be added so as to be uniformly dispersed throughout the filter, may be added collectively at desired locations, or may be added to the space provided between the filter segments. You may let me.

<Tobacco products>
A tobacco product (also simply referred to as a "tobacco product"), which is another embodiment of the present invention, is a tobacco product having the above-mentioned filter for a tobacco product.
The tobacco product is not particularly limited as long as it has a filter, and can be a known embodiment, for example, a tobacco rod portion having a tobacco engraving, a mouthpiece portion having a filter, and a chip paper around which the tobacco product is wrapped. It can be a tobacco product composed of such members. Hereinafter, the conditions of the tobacco product having this configuration will be described in detail.

The rod-shaped tobacco product preferably has a columnar shape satisfying a shape having an aspect ratio of 1 or more as defined below.
Aspect ratio = h / w
w is the width of the bottom surface of the columnar body (in the present specification, it is the width of the bottom surface on the tobacco rod portion side), h is the height, and h ≧ w is preferable. In the present specification, the long axis direction is defined as the direction indicated by h. Therefore, even if w ≧ h, the direction indicated by h is referred to as the major axis direction for convenience. The shape of the bottom surface is not limited and may be a polygon, a rounded polygon, a circle, an ellipse, or the like, and the width w is a diameter when the bottom surface is circular, a major axis when the bottom surface is elliptical, a polygonal shape, or a rounded corner polygon. If, it is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse.
The length h in the long axis direction of the tobacco product is not particularly limited, and is usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. Further, it is usually 100 mm or less, preferably 90 mm or less, and more preferably 85 mm or less.
The width w of the bottom surface of the columnar body of the tobacco product is not particularly limited, and is usually 5 mm or more, preferably 5.5 mm or more, for example. Further, it is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.
The aeration resistance in the long axis direction of the tobacco product is not particularly limited, but from the viewpoint of ease of sucking, it is usually 50 mmWG or more, preferably 60 mmWG or more, more preferably 70 mmWG or more, and usually 200 mmWG or more. It is less than or equal to, preferably 190 mmWG or less, and more preferably 180 mmWG or less.
As the method for measuring the ventilation resistance, the method for measuring the ventilation resistance described in the above-mentioned filter can be similarly applied.

[Tobacco rod part]
The aspect of the tobacco rod portion is not particularly limited as long as it is a known aspect, but it is usually an embodiment in which a tobacco filling material is wrapped with rolling paper.
The tobacco rod portion formed by wrapping the tobacco filler with rolling paper preferably has a columnar shape, and in this case, the height in the long axis direction of the tobacco rod portion with respect to the width of the bottom surface of the tobacco rod portion. It is preferable that the aspect ratio represented by 1 is 1 or more.
The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, or elliptical, and the width is the diameter when the bottom surface is circular, the major axis when the bottom surface is elliptical, and the polygonal or rounded corners. If it is polygonal, it is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. The height of the tobacco filling material constituting the tobacco rod portion is preferably about 10 to 70 mm, and the width is preferably about 4 to 9 mm.
Further, when the tobacco rod portion is used for an electronically heated tobacco product, the tobacco rod portion may have a fitting portion with a heater member or the like for heating the tobacco product.

(Tobacco filling)
(1) First Tobacco Filling First, the first tobacco filling (also simply referred to as “first filling portion”) will be described. The material for chopping tobacco contained in the first filling material is not particularly limited, and known materials such as lamina and middle bone can be used. Further, dried tobacco leaves are crushed so that the average particle size is 20 μm or more and 200 μm or less to obtain a crushed tobacco product, and the homogenized product is processed into a sheet (hereinafter, also simply referred to as a homogenized sheet). It may be chopped. Further, a so-called strand type may be used in which a uniformed sheet having a length similar to that in the longitudinal direction of the tobacco rod is chopped substantially horizontally with the longitudinal direction of the tobacco rod and filled in the tobacco rod. The width of the tobacco chopped is 0.5 mm or more and 2.0 mm or less is preferable for filling the tobacco rod. The content of the tobacco filling in the tobacco rod may be 200 mg / rod portion or more, 800 mg / rod portion or less, and 250 mg / rod portion or more, 600 mg / in the case of a tobacco rod having a circumference of 22 mm and a length of 20 mm. The rod portion and below are preferable. As for the tobacco leaves used for producing the tobacco chopped and the homogenized sheet, various types of tobacco can be used. For example, yellow varieties, Burley varieties, Orient varieties, native varieties, other Nicotiana-Tabacam varieties, Nicotiana rustica varieties, etc., or mixtures thereof can be mentioned. As for the mixture, each of the above varieties can be appropriately blended and used so as to obtain the desired taste. Details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Academic Studies Center, 2009.3.31". There are a plurality of conventional methods for producing the homogenized sheet, that is, a method for crushing tobacco leaves and processing them into a homogenized sheet. The first is a method of producing a papermaking sheet using a papermaking process. The second method is to mix an appropriate solvent such as water with crushed tobacco leaves to homogenize it, then cast the homogenized product thinly on a metal plate or metal plate belt and dry it to make a cast sheet. Is. The third method is to prepare a rolled sheet by mixing an appropriate solvent such as water with crushed tobacco leaves and extruding the homogenized one into a sheet. Details of the types of the homogenized sheet are disclosed in "Tobacco Encyclopedia, Tobacco Academic Studies Center, 2009.3.31".

The water content of the tobacco filling may be 10% by weight or more and 15% by weight or less, preferably 11% by weight or more and 13% by weight or less, based on the total amount of the tobacco filling. With such a water content, the occurrence of winding stains is suppressed, and the hoisting suitability at the time of manufacturing the tobacco rod is improved.
There are no particular restrictions on the size of the tobacco nicks contained in the first tobacco filling and the method for preparing the nicks. For example, dried tobacco leaves may be chopped to a width of 0.5 mm or more and 2.0 mm or less.
When a crushed product of a homogenized sheet is used, dried tobacco leaves are crushed so that the average particle size is about 20 to 200 μm, and the homogenized product is processed into a sheet, which has a width of 0.5 mm or more, 2 Those chopped to 0.0 mm or less may be used.

The first tobacco filling may contain an aerosol-producing substrate that produces aerosol smoke. The type of the aerosol-forming substrate is not particularly limited, and extracts from various natural products and / or components thereof can be selected depending on the intended use. Examples of the aerosol-forming substrate include glycerin, propylene glycol, triacetin, 1,3-butanediol and the like, or a mixture thereof.
The content of the aerosol-forming substrate in the first tobacco filling is not particularly limited, and is usually 5% by weight with respect to the total amount of the tobacco filling from the viewpoint of sufficiently producing an aerosol and imparting a good flavor. % Or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less.

The first tobacco filling may contain a fragrance. The type of the fragrance is not particularly limited, and from the viewpoint of imparting a good flavor, acetoanisol, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-annetol, staranis oil. , Apple juice, Peruvian balsam oil, Mitsurou absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butandione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamon oil , Carob absolute, β-carotene, carrot juice, L-carboxyl, β-cariophyllene, cassia bark oil, cedarwood oil, celery seed oil, camomil oil, cinnamaldehyde, silicic acid, cinnamyl alcohol, cinnamyl silicate, citronella Oil, DL-Citronellol, Clarisage Extract, Cocoa, Coffee, Cognac Oil, Coriander Oil, Cuminaldehyde, Davana Oil, δ-Decalactone, γ-Decalactone, Decanoic Acid, Dilherb Oil, 3,4-dimethyl-1,2 -Cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine , 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanate, ethyl oleate , Ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6) -dimethylpyrazine, 5-ethyl-3-hydroxy -4-Methyl-2 (5H) -Flanon, 2-Ethyl-3-Methylpyrazine, Eucalyptor, Fenegreak Absolute, Gene Absolute, Lindou Root Infusion, Geraniol, Geranil Acetate, Grape Juice, Guayacol, Guava Extract, γ-Heptalactone, γ-hexalactone, hexanoic acid, cis-3-hexene-1-ol, hexyl acetate, hexyl alcohol, phenylacetate hexyl, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4 -(3-Hi Droxy-1-butenyl) -3,5,5-trimethyl-2-cyclohexene-1-one, 4- (para-hydroxyphenyl) -2-butanone, sodium 4-hydroxyundecanoate, immortel absolute, β- Ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, rabdanum oil, lemon terpenless oil, kanzo extract, linalol, linalyl acetate, lobage root oil, maltor, Maple syrup, menthol, menthon, L-mentyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrrolketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, Mimosa absolute, toumitsu, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, oris root oil, palmitic acid, ω-pentadecalactone, Peppermint oil, petitgrain paraguay oil, phenethyl alcohol, phenylacetate phenethyl, phenylacetic acid, piperonal, plum extract, propenylguaetol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvate, raisin extract, rose Oil, lamb liquor, sage oil, sandalwood oil, spearmint oil, stylux absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5 , 9-Tetramethyl-13-oxacyclo (8.3.0.0 (4.9)) tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-toridecanone, citric acid Triethyl, 4- (2,6,6-trimethyl-1-cyclohexenyl) 2-butene-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4- (2,6) , 6-trimethyl-1,3-cyclohexadienyl) 2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratolaldehyde , Violet Leaf Absolute, N-Ethyl-p-Men Examples thereof include tan-3-carboxamide (WS-3) and ethyl-2- (p-menthan-3-carboxamide) acetate (WS-5), and menthol is particularly preferable. In addition, these fragrances may be used alone or in combination of two or more.

The content of the flavor in the first tobacco filling is not particularly limited, and is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and more preferably 25,000 ppm or more, from the viewpoint of imparting a good flavor. , Usually 70,000 ppm or less, preferably 50,000 ppm or less, more preferably 40,000 ppm or less, still more preferably 33,000 ppm or less.

The filling density in the first tobacco filling is not particularly limited, but is usually 250 mg / cm ³ or more, preferably 250 mg / cm 3 or more, from the viewpoint of ensuring the performance of the first non-combustible heat-not-burn tobacco and imparting a good flavor. It is 300 mg / cm ³ or more, and usually 400 mg / cm ³ or less, preferably 350 mg / cm ³ or less.
The first tobacco filling described above is wrapped with rolling paper so that it is on the inside to form a tobacco rod portion.

(2) Second Tobacco Filling The second tobacco filling is composed of a plurality of concentrically arranged tobacco sheets. As used herein, "arranged concentrically" means that the centers of all tobacco sheets are arranged so as to be substantially in the same position. As used herein, the term "seat" refers to a shape having a pair of substantially parallel main surfaces and side surfaces. The second filling is composed of a plurality of tobacco sheets wound concentrically in a direction orthogonal to the longitudinal direction of the tobacco product.
Examples of the sheet base material include tobacco materials such as tobacco powder, and tobacco materials are particularly preferable. It is preferable that the base sheet of the tobacco material is a tobacco sheet in which a component capable of generating a flavor is supported, if necessary.
The tobacco sheet may contain an aerosol-forming substrate that produces aerosol smoke upon heating. An aerosol source such as a polyol such as glycerin, propylene glycol, or 1,3-butanediol is added as an aerosol-forming substrate. The amount of the aerosol-forming substrate added is preferably 5% by weight or more and 50% by weight or less, and more preferably 15% by weight or more and 25% by weight or less with respect to the dry weight of the tobacco sheet.

The tobacco sheet as a material before being arranged concentrically will be described.
The tobacco sheet can be appropriately produced by a known method such as papermaking, slurry, or rolling. It should be noted that the homogenizing sheet described in the first tobacco filling can also be used.
In the case of papermaking, it can be manufactured by a method including the following steps. 1) Dried tobacco leaves are coarsely crushed, extracted with water and separated into a water extract and a residue. 2) The water extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, fiberized with a refiner, and then made into paper. 4) Add a concentrated solution of water extract to the paper-made sheet and dry it to make a tobacco sheet. In this case, a step of removing a part of the components such as nitrosamine may be added (see Japanese Patent Publication No. 2004-510422).
In the case of the slurry method, it can be produced by a method including the following steps. 1) Mix water, pulp and binder with crushed tobacco leaves. 2) The mixture is thinly spread (cast) and dried. In this case, a step of removing a part of components such as nitrosamine may be added by irradiating the slurry in which water, pulp and a binder and crushed tobacco leaves are mixed with ultraviolet rays or X-rays.

In addition, as described in International Publication No. 2014/104078, a non-woven fabric-like tobacco sheet produced by a method including the following steps can also be used. 1) Mix the powdered tobacco leaves and the binder. 2) The mixture is sandwiched between non-woven fabrics. 3) The laminate is formed into a constant shape by heat welding to obtain a non-woven fabric-like tobacco sheet.
As the type of the raw material tobacco leaves used in each of the above methods, the same types as those described in the first filling can be used.
The composition of the tobacco sheet is not particularly limited, but for example, the content of the tobacco raw material (tobacco leaf) is preferably 50% by weight or more and 95% by weight or less with respect to the total weight of the tobacco sheet. Further, the tobacco sheet may contain a binder, and examples of the binder include guar gum, xanthan gum, CMC (carboxymethyl cellulose), CMC-Na (sodium salt of carboxymethyl cellulose) and the like. The amount of the binder is preferably 1% by weight or more and 10% by weight or less with respect to the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of the additive include a filler such as pulp. Although a plurality of tobacco sheets are used in the present embodiment, all of the tobacco sheets may have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.

For the second tobacco filling, a plurality of tobacco sheets having different widths are prepared, a laminated body is prepared in which the width decreases from the bottom to the top, and this is passed through a winding tube and rolled up. Can be manufactured by According to this manufacturing method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically about the longitudinal axis. Further, a fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost layer of the tobacco sheet.
In this manufacturing method, it is preferable that the laminate is prepared so that a non-contact portion is formed between the adjacent tobacco sheets after the winding molding.
If there is a non-contact portion (gap) between the plurality of tobacco sheets that the tobacco sheet does not contact, the flavor flow path can be secured and the delivery efficiency of the flavor component can be enhanced. On the other hand, when the tobacco product is used in the electrically heated tobacco product, the heat from the heater can be transferred to the outer tobacco sheet through the contact portions of the plurality of tobacco sheets, so that high heat transfer efficiency can be ensured.

In order to provide a non-contact portion between a plurality of tobacco sheets so that the tobacco sheets do not come into contact with each other, for example, an embossed tobacco sheet is used, and adjacent tobacco sheets are laminated without adhering the entire surfaces of the adjacent tobacco sheets. A method of preparing a laminate by adhering a part of each other and laminating, or by slightly adhering and laminating the entire surface or a part of adjacent tobacco sheets so as to be peeled off after winding molding can be mentioned. ..
When preparing the tobacco rod portion including the wrapping paper, the above-mentioned wrapping paper may be arranged at the bottom of the laminated body.
Further, a fitting portion can be formed by placing a tubular dummy such as a mandrel on the uppermost portion of the laminated body to form a second tobacco filler and then removing the dummy.
The thickness of each tobacco sheet is not limited, but is preferably 150 μm or more and 1000 μm or less, and more preferably 200 μm or more and 600 μm or less, from the viewpoint of heat transfer efficiency and strength. The thickness of each tobacco sheet may be the same or different.
The number of tobacco sheets constituting the second tobacco filler is not particularly limited, and examples thereof include 2, 3, 4, 5, 6, or 7 sheets.

(3) Third Tobacco Filling The third tobacco filling consists of a single folded tobacco sheet. The sheet may be a so-called gather sheet having a length similar to that in the longitudinal direction of the tobacco rod portion and being folded back and filled in a plurality of horizontal directions in the longitudinal direction of the tobacco rod. The thickness of the sheet is preferably 150 μm or more and 1000 μm or less, and more preferably 200 μm or more and 600 μm or less, from the viewpoint of the balance between heat transfer efficiency and strength.
As the sheet base material used for the third tobacco filling, the same one as the above-mentioned second tobacco filling can be used.

(4) Fourth Tobacco Filling The fourth tobacco filling is composed of tobacco granules.
The raw material of the fourth tobacco filling is not particularly limited, but at least one selected from the group consisting of (a) ground tobacco material, (b) water content, (c) potassium carbonate and sodium hydrogen carbonate. A pH regulator and at least one binder selected from the group consisting of (d) pullulan and hydroxypropyl cellulose can be mentioned.

The crushed tobacco material (component (a)) contained in the fourth tobacco filling includes crushed tobacco leaves, crushed tobacco sheets, and the like. Tobacco varieties include Burley varieties, yellow varieties, oriental varieties and the like. The tobacco material is preferably pulverized to a size of 200 μm or more and 300 μm or less.
The raw material mixture of the fourth tobacco filling usually contains crushed tobacco material in an amount of 20% by weight or more and 80% by weight or less.

The water content (component (b)) contained in the fourth tobacco filling is for maintaining the integrity of the tobacco granules.
The raw material mixture of the fourth tobacco filling usually contains water in an amount of 3% by weight or more and 13% by weight or less. Further, the fourth tobacco filling may contain water in an amount such that the value of the dry weight loss is usually 5% by weight or more and 17% by weight or less. Dry weight loss is when a part of the sample is taken for measurement and the sample is completely dried by evaporating the total water content in the collected sample (for example, at a constant temperature (105 ° C.) for 15 minutes. Refers to the change in weight before and after drying), specifically, the ratio of the total value of the amount of water contained in the sample and the amount of volatile components that volatilize under the above drying conditions to the sample weight. Refers to (% by weight). That is, the dry weight loss (% by weight) can be expressed by the following formula.
Dry weight loss (% by weight) =
{(Weight of sample before complete drying)-(Weight of sample after complete drying)} × 100 / Weight of sample before complete drying

The pH adjuster (component (c)) contained in the fourth tobacco filler consists of potassium carbonate, sodium hydrogen carbonate, or the like, or a mixture thereof. These pH regulators adjust the pH of the fourth tobacco filling to the alkaline side, thereby promoting the release of the flavor component contained in the fourth tobacco filling from the tobacco granules, which may satisfy the user. Brings flavor.
The raw material mixture of the fourth tobacco filler may usually contain a pH adjuster in an amount of 5% by weight or more and 20% by weight or less.

The binder (component (d)) contained in the fourth tobacco filling is for binding the tobacco granule components to maintain the integrity of the tobacco granules. The binder is composed of pullulan, hydroxypropyl cellulose (HPC), etc., or a mixture thereof.
The raw material mixture of the fourth tobacco filling can usually contain the binder in an amount of 0.5% by weight or more and 15% by weight or less.

The fourth tobacco filling can consist of the above components (a), (b), (c) and (d), but can also include additional components.
Additional components include aerosol-forming substrates (component (e)). The aerosol-forming substrate is one that produces aerosol smoke. The aerosol-forming substrate is composed of a polyhydric alcohol, and the polyhydric alcohol may include glycerin, propylene glycol, sorbitol, xylitol, erythritol and the like. These polyhydric alcohols can be used alone or in combination of two or more.
When the raw material mixture of the fourth tobacco filling contains an aerosol-forming substrate, it may be contained in an amount of 5 to 15% by weight.
In addition, examples of the additional component include (f) a flavoring material (solid or liquid) other than the flavoring component. Such flavoring materials include sugar (sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower (flower) powder, lemon verbena powder, peppermint powder, leaf powder. , Sparemint flour, black tea flour, menthol, etc.
The raw material mixture of the fourth tobacco filling can usually contain the above-mentioned flavor material in an amount of 0.5% by weight or more and 30% by weight or less. The flavoring material may be added to the ingredients by directly kneading the ingredients (a), (b), (c), (d) and (e), or a known package such as cyclodextrin. It may be added to the above component by supporting it on a contact host compound to prepare an inclusion compound and then kneading it with the above component.
When the fourth tobacco filling comprises the above components (a), (b), (c), (d) and (e), the raw material mixture of the fourth tobacco filling contains the component (a). , Usually, it may be contained in an amount of about 33% by weight or more (about 90% by weight or less).

In the fourth tobacco filling, the components (a), (c) and (d) and, if desired, the components (e) and / or (f) are mixed, and the component (b) is added to the mixture and kneaded. The obtained kneaded product is obtained by granulating (long columnar) with a wet extruder granulator and then sizing into short columns or spheres. The average particle size (D50) of the obtained tobacco granules is usually 0.2 mm or more and 1.2 mm or less, preferably 0.2 mm or more and 1.0 mm or less, and 0.2 mm or more and 0.8 mm or less. The following is more preferable.
In extruding granulation, it is preferable to extrude the kneaded product at an ambient temperature and a pressure of 2 kN or more. Due to this high-pressure extrusion, the temperature of the kneaded product at the outlet of the extruder and granulator rises instantaneously from the ambient temperature to, for example, 90 to 100 ° C., and the water content and volatile components are 2% by weight or more and 4% by weight. It evaporates below. Therefore, the water to be blended to make the kneaded product can be used in an amount larger than the desired water content in the obtained tobacco granules by the above-mentioned evaporation amount.

Tobacco granules obtained by extrusion granulation may be further dried if necessary for moisture adjustment. For example, the dry weight loss of tobacco granules obtained by extruded granulation is measured, and if it is higher than the desired dry weight loss (eg, 5% by weight or more, 17% by weight or less), the tobacco is obtained to obtain the desired dry weight loss. The granules may be further dried. The drying conditions (temperature and time) for obtaining the desired drying weight loss shall be set in advance based on the drying conditions (temperature and time) required to reduce the drying weight loss by a predetermined value. Can be done.

The fourth tobacco filling can consist only of the above tobacco granules, but can also contain additional tobacco material. Additional tobacco material is usually tobacco leaf chopped or finely ground. Additional tobacco materials can be used in admixture with tobacco granules.

(Rolling paper)
The composition of the rolling paper is not particularly limited and may be a general embodiment, and examples thereof include those having pulp as a main component. In addition to being made from wood pulp such as softwood pulp and broadleaf tree pulp, non-wood pulp commonly used for wrapping paper for tobacco products such as flax pulp, cannabis pulp, sisal hemp pulp, and esparto can be used as pulp. It may be obtained by mixing and manufacturing.
As the type of pulp, chemical pulp, gland pulp, chemigrand pulp, thermomechanical pulp or the like by a kraft cooking method, an acidic / neutral / alkaline sulfite cooking method, a soda salt cooking method or the like can be used.

Using the above pulp, roll paper is manufactured by adjusting the texture and making it uniform in the papermaking process using a long net paper machine, a circular net paper machine, a circular short composite paper machine, or the like. If necessary, a wet paper strength enhancer may be added to impart water resistance to the wrapping paper, or a sizing agent may be added to adjust the printing condition of the wrapping paper. Further, an internal additive for papermaking such as a sulfate band, various anionic, cationic, nonionic or amphoteric yield improvers, drainage improvers, and paper strength enhancers, as well as dyes and pH adjusters. Papermaking additives such as defoaming agents, pitch control agents, and slime control agents can be added.

The basis weight of the wrapping paper base paper is, for example, usually 20 gsm or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, and more preferably 45 gsm or less.
The thickness of the rolling paper having the above characteristics is not particularly limited, and is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, from the viewpoint of rigidity, breathability, and ease of adjustment during papermaking. It is usually 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less.
The non-combustion heat-not-burn tobacco wrapping paper may have a square or rectangular shape.
When used as a wrapping paper for wrapping a tobacco filling (to make a tobacco rod part), the length of one side can be about 12 to 70 mm, and the length of the other side is 15 to 28 mm. A preferable length of one side is 22 to 24 mm, and a more preferable length is about 23 mm. When wrapping a tobacco filler in a columnar shape with rolling paper, for example, the end of the wrapping paper in the w direction and the end on the opposite side thereof are overlapped and glued by about 2 mm to form a columnar paper tube. The shape is filled with tobacco filling. The size of the rectangular wrapping paper can be determined by the size of the finished tobacco rod portion.
When the tobacco rod part and other members adjacent to the tobacco rod part are connected and wound like chip paper, the length of one side is 20 to 60 mm, and the length of the other side is 15 to 28 mm. Can be mentioned.

In addition to the above pulp, the rolling paper according to the present embodiment may contain a filler. The content of the filler may be 10% by weight or more and less than 60% by weight, preferably 15% by weight or more and 45% by weight or less, based on the total weight of the rolling paper according to the embodiment of the present invention.
In the rolling paper according to the present embodiment, the filler is preferably 15% by weight or more and 45% by weight or less in a preferable range of basis weight (25 gsm or more and 45 gsm or less).
Further, when the basis weight is 25 gsm or more and 35 gsm or less, the filler is preferably 15% by weight or more and 45% by weight or less, and when the basis weight is more than 35 gsm and 45 gsm or less, the filler is 25% by weight or more and 45 weight. % Or less is preferable.
As the filler, calcium carbonate, titanium dioxide, kaolin or the like can be used, but it is preferable to use calcium carbonate from the viewpoint of enhancing the flavor and whiteness.

Various auxiliary agents other than the base paper and the filler may be added to the wrapping paper, and for example, a water resistance improving agent can be added in order to improve the water resistance. The water resistance improver includes a wet paper strength enhancer (WS agent) and a sizing agent. Examples of the wet paper strength enhancer include urea formaldehyde resin, melamine formaldehyde resin, and polyamide epichlorohydrin (PAE). Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.
As an auxiliary agent, a paper strength enhancer may be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol and the like. In particular, it is known that the air permeability of oxidized starch is improved by using a very small amount (Japanese Unexamined Patent Publication No. 2017-21869).
Further, the rolling paper may be appropriately coated.

A coating agent may be added to at least one of the two front and back surfaces of the wrapping paper. The coating agent is not particularly limited, but a coating agent capable of forming a film on the surface of paper and reducing the permeability of the liquid is preferable. For example, alginic acid and salts thereof (eg sodium salt), polysaccharides such as pectin, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, cellulose derivatives such as nitrocellulose, or starch and derivatives thereof (eg carboxymethyl starch, hydroxyalkyl starch or cationic starch). Ether derivatives such as starch acetate, starch phosphate or ester derivatives such as octenyl succinate starch).

[Mouthpiece part]
The aspect of the mouthpiece portion is not particularly limited as long as it has the above-mentioned filter and has a function as a general filter.

The mouthpiece unit may have a cooling unit (cooling segment) in addition to the capsule filter unit described above. The cooling segment may be formed of a tubular member, and may be, for example, a paper tube obtained by processing thick paper into a cylindrical shape.

The total surface area of the cooling segment can be 300 mm ² / mm or more and 1000 mm ² / mm or less. This surface area is the surface area per length (mm) of the cooling segment 21 in the ventilation direction. The total surface area of the cooling segment is preferably 400 mm ² / mm or more, more preferably 450 mm ² / mm or more, while preferably 600 mm ² / mm or less, preferably 550 mm ² / mm or less. Is more preferable.

It is desirable that the cooling segment has a large total surface area with a large internal structure. Thus, in a preferred embodiment, the cooling segment may be wrinkled to form a channel and then formed by a sheet of pleated, gathered, and folded thin material. Folding or folds within a given volume of the element increases the total surface area of the cooling segment.

In some embodiments, the thickness of the constituent material of the cooling segment can be 5 μm or more and 500 μm or less, for example, 10 μm or more and 250 μm or less.

The mouthpiece portion may have an opening for taking in air from the outside (also referred to as a "ventilation filter (Vf)" in the technical field to which the present invention belongs). Specifically, it may be a mode in which the holes 22 are provided only in the chip paper, or may be a mode in which the holes are provided so as to penetrate the filter portion, and the holes are opened so as to penetrate from the chip paper to the cooling portion. It may be an embodiment provided with a hole. The number of holes arranged concentrically is not limited. Further, when such openings arranged concentrically are adopted and these are treated as one opening group, the number of opening groups may be one or two or more. good.
Due to the presence of the above-mentioned openings, air flows into the cooling portion from the outside during use, and the temperature of the components and air flowing in from the tobacco rod portion can be lowered. When an aerosol-generating base material is used for the tobacco rod portion, the vapor containing the aerosol-forming base material and the tobacco flavor component generated by heating the tobacco rod comes into contact with the air from the outside and the temperature drops. This can liquefy and promote the formation of aerosols. The number of openings that exist concentrically is not particularly limited, and may be one or two or more.
The diameter of the hole is preferably 100 μm or more and 1000 μm or less, and more preferably 300 μm or more and 800 μm or less. The openings are preferably substantially circular or substantially elliptical, and in the case of a substantially elliptical shape, the diameter represents a major axis.
Further, the position where the opening is arranged is not particularly limited.

[Chip paper]
The composition of the chip paper is not particularly limited and can be a general embodiment, and examples thereof include those having pulp as a main component. The pulp is not only made from wood pulp such as coniferous tree pulp and broadleaf tree pulp, but also non-wood pulp commonly used for chip paper for tobacco articles such as flax pulp, cannabis pulp, sisal hemp pulp, and esparto. May be obtained by mixing and producing. These pulps may be used alone or in combination of a plurality of types at any ratio.
Further, the chip paper may be composed of one sheet, but may be composed of a plurality of sheets or more.
As the embodiment of the pulp, chemical pulp, gland pulp, chemigrand pulp, thermomechanical pulp or the like obtained by a kraft cooking method, an acidic / neutral / alkaline sulfite cooking method, a soda salt cooking method or the like can be used.
The chip paper may be manufactured by the manufacturing method described later or may be a commercially available product.
The shape of the chip paper is not particularly limited and may be, for example, a square or a rectangle.

The basis weight of the chip paper is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less.

The chip paper may contain a filler in addition to the above pulp, for example, calcium carbonate, a metal carbonate such as magnesium carbonate, a metal oxide such as titanium oxide, titanium dioxide or aluminum oxide, barium sulfate or Examples thereof include metal sulfates such as calcium carbonate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, caustic soil, and gypsum, and in particular, from the viewpoint of improving whiteness and / or opacity and increasing heating rate. It is preferable that it contains calcium carbonate. In addition, these fillers may be used alone or in combination of two or more.

In addition to the above-mentioned pulp and filler, various auxiliaries may be added to the chip paper, and for example, a water resistance improver may be provided to improve the chip paper. The water resistance improver includes a wet paper strength enhancer (WS agent) and a sizing agent. Examples of the wet paper strength enhancer include urea formaldehyde resin, melamine formaldehyde resin, and polyamide epichlorohydrin (PAE). Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.

A coating agent may be added to at least one of the two front and back surfaces of the chip paper. The coating agent is not particularly limited, but a coating agent capable of forming a film on the surface of paper and reducing the permeability of the liquid is preferable.

[Manufacturing method of tobacco products]
The above-mentioned method for producing a tobacco product is not particularly limited, and a known method can be applied. For example, the tobacco rod portion and the mouthpiece portion can be manufactured by winding them with chip paper.

[Use of tobacco products]
The above-mentioned tobacco products can be used as tobacco products for cigarettes (cigarettes), and can also be used as tobacco products for electrically heated tobacco products.
Electric heat-not-burn tobacco products tend to lose their flavor in the second half of use, but when the above filter is used, the deterioration in flavor in the second half of this use is less than when a general filter is used. be able to.

When the tobacco product is used for cigarettes, the method of use is not particularly limited, but for example, after crushing the capsule in the capsule filter, the tobacco rod part is burned and sucked from the mouthpiece end side, so that the user can use it. Nicotine, flavor components and the like can be obtained.
When a tobacco product is used for an electrically heated tobacco product, it is usually used together with an external device having a heating function. The electrically heated tobacco product comes into contact with, for example, an electrically heated device including a heater member, a battery unit as a power source for the heater member, and a control unit for controlling the heater member, and the heater member. It can be an electrically heated tobacco product composed of the above-mentioned tobacco product inserted as described above. Hereinafter, an example of this electrically heated tobacco product will be described in detail.

<Electric heating type tobacco products>
Examples of the electric heating type tobacco product include a mode of heating from the inside of the tobacco rod portion in the tobacco product (hereinafter, also referred to as “internal heating type electric heating type tobacco product”) and a mode of heating the outer peripheral surface of the tobacco product (hereinafter, also referred to as “internal heating type electric heating type tobacco product”). Hereinafter, it may also be referred to as “externally heated electric heating type tobacco product”).
The following is an example of an embodiment of an electrically heated tobacco product.
The heat-not-burn tobacco product is used by being inserted into a heater member arranged in the heat-not-burn device so that the tobacco product comes into contact with the heater member.
The electrically heated device has, for example, a battery unit and a control unit inside a resinous skeleton.
When the tobacco product is inserted into the electrically heated device, the tobacco filling in the tobacco rod portion first comes into contact with the heater member, and eventually, the entire heater member is inserted into the tobacco filling.
The heater member of the electric heating type device generates heat under the control of the control unit. When the heat is transferred to the tobacco filling of the tobacco product 10, the aerosol-forming base material and the flavor component contained in the tobacco filling are volatilized.

The heater member of the electric heating type device may be, for example, a sheet heater, a flat plate heater, or a tubular heater. The sheet-shaped heater is a flexible sheet-shaped heater, and examples thereof include a heater containing a film of a heat-resistant polymer such as polyimide (thickness of about 20 μm to 225 μm). The flat plate heater is a rigid flat plate heater (thickness of about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on a flat plate base material and using the portion as a heat generating portion. A tubular heater is a hollow or solid cylindrical heater, for example, a heater (thickness of about 200 to 500 μm) having a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like and having the heat generating portion in the portion. Be done. Further, a columnar heater made of metal or the like having a resistance circuit inside and having the portion as a heat generating portion, or a conical heater can also be mentioned. The cross-sectional shape of the tubular heater may be a circle, an ellipse, a polygon, a polygon with rounded corners, or the like.
In the case of an internally heated electric heating type tobacco product, the above-mentioned flat plate heater, columnar heater, or conical heater can be used. On the other hand, in the case of an externally heated electric heating type tobacco product, the above-mentioned sheet-shaped heater, flat plate-shaped heater, or tubular heater can be used.
The length of the heater member in the long axis direction can be within the range of T ± 5.0 mm when the length of the tobacco rod portion composed of the tobacco filling and the wrapping paper in the long axis direction is T mm. ..

Heating conditions such as the heating time and heating temperature of the tobacco product by the heater member can be set in advance for each electric heating type tobacco product. For example, after inserting a tobacco product into an electrically heated device, preheating is performed for a certain period of time to heat the tobacco product until the temperature of at least a part of the tobacco filling reaches X (° C.), and then the temperature is reached. The temperature can be set in advance so as to maintain a constant temperature of X (° C.) or less.
The X (° C.) is preferably 150 ° C. or higher and 450 ° C. or lower from the viewpoint of aerosol delivery. Specifically, the above X (° C.) is 150 ° C., 160 ° C., 170 ° C., 180 ° C., 190 ° C., 200 ° C., 210 ° C., 220 ° C., 230 ° C., 240 ° C., 250 ° C., 260 ° C., 270 ° C. 280 ° C, 290 ° C, 300 ° C, 310 ° C, 320 ° C, 330 ° C, 340 ° C, 350 ° C, 360 ° C, 370 ° C, 380 ° C, 390 ° C, 400 ° C, 410 ° C, 420 ° C, 430 ° C, 440 It can be set to ° C and 450 ° C.
In the electrically heated tobacco product, the steam containing the aerosol-forming base material, the flavor component, etc. generated from the tobacco filling of the tobacco product reaches the user's oral cavity through the mouthpiece member by heating the heater member.

The present invention will be described in more detail by way of examples, but the present invention is not limited to the description of the following examples as long as it does not deviate from the gist thereof.

<Examples 1 to 5>
[Preparation of adsorbent]
Using an oscillator (OG SERIES OG-1 manufactured by Kikusui Seisakusho Co., Ltd.), high-elcin rapeseed extremely hydrogenated oil (Yokoseki Oil & Fat Industry Co., Ltd., melting point: 59 ° C.) was crushed and classified. A wire mesh with an opening of 1400 is used as the wire mesh for the filter, and a sieve having an opening of 355 μm (minimum value of the granule size) according to the JIS standard and 1400 μm (maximum value of the granule size)). The one according to the JIS standard of is used. The average particle size of the obtained adsorbent was 355 to 1400 μm, and the center value was 650 μm.
The above-mentioned high erucine rapeseed extremely hydrogenated oil has a saponification value of 177.5, an iodine value of 0.62, an acid value of 0.04, contains 6 to 48% of erucic acid as a fatty acid, and other linoleic acid, oleic acid, and stearic acid. It is composed of acid and the like.

[Making a filter]
The cellulose acetate fiber bundle to which the above-mentioned adsorbent was added was wound with a roll paper so that the addition amount per 12 mm of the filter length was 10 mg, and a 120 mm filter of Example 1 (circumference of cross section: 24.1 mm) was obtained. The roll paper used had a basis weight of 24.0 ± 1.5 g / m ² and a thickness of 32 ± 4 μm. As the cellulose acetate fiber, one to which 9% by weight of triacetin was added was used.
Filters were prepared in the same manner as in Example 1 above except that the amount of the adsorbent added per 12 mm of the filter length was changed from 10 mg to 20 mg, 30 mg, 40 mg, and 60 mg, and the filters were prepared in the same manner as in Examples 2 to 5, respectively. I got the filter. The range of these average particle diameters is the same as in Example 1.

<Comparative Example 1>
[Preparation of adsorbent]
An adsorbent was prepared according to the following conditions.
1) A granulated substrate containing 60% by weight of dextrin, 6% by weight of powdered sugar, and 1% by weight of crystalline cellulose was stirred and mixed in advance with a pan kneader.
2) 30% by weight of fats and oils were weighed. The fats and oils were placed in a glass beaker and melted in a warmer. The set temperature was set to 70 ° C to 80 ° C.
3) Completely melted fats and oils were added to the mixture of 1) with stirring.
4) 3% by weight of glycerin was added with further stirring.
5) The granule mass cooled and solidified is crushed and classified by an oscillator under the same conditions as in Example 1 above for the purpose of granulation, and is in the form of granules having a particle size of 355 μm or more and 1400 μm or less. The adsorbent was collected.

[Making a filter]
The cellulose acetate fiber bundle to which the above-mentioned adsorbent was added was wound with a roll paper so that the addition amount per 12 mm of the filter length was 30 mg, and a 120 mm filter of Comparative Example 1 (circumference of cross section: 24.1 mm) was obtained. The roll paper used had a basis weight of 24.0 ± 1.5 g / m ² and a thickness of 32 ± 4 μm. As the cellulose acetate fiber, one to which 9% by weight of triacetin was added was used.

<Evaluation of ventilation resistance>
For each of the filters obtained above, the ventilation resistance per 120 mm of the initial filter length and the ventilation resistance per 120 mm of the filter length after heating at 100 ° C. for 10 minutes using a low temperature dryer are determined by the following methods. Measured at.
The aeration resistance of the filter was measured using a Cerulean filter aeration resistance measuring instrument according to the ISO standard method (ISO6565). The measurement results of the ventilation resistance are shown in Table 1 and FIG. 1 below. The filter ventilation resistance is such that air with a predetermined air flow rate (17.5 cc / min) is passed from one end face (first end face) to the other end face (second end face) in a state where air is not permeated on the side surface of the filter. Refers to the pressure difference between the first end face and the second end face when flowing. The evaluation of the ventilation resistance is performed with the evaluation number n = 5 in each material, and the total weight of the filter, the average value of the ventilation resistance, and the standard deviation are shown in Table 1 below.
The reduction rate shown in Table 1 is a value calculated by (initial ventilation resistance-ventilation resistance after heating) × 100 / initial ventilation resistance.

From Table 1 above, Examples 1 to 5 using a filter containing an adsorbent containing no base material have a reduction in aeration resistance due to heating as compared with Comparative Example 1 using a filter containing an adsorbent containing a base material. It turned out that the rate was high. This is because the adsorbents in the filters of Examples 1 to 5 did not contain a base material, and the content of the fats and oils in the adsorbent was relatively larger than that of the filter of Comparative Example 1, so that the fats and oils by heating were relatively large. It is considered that the reason is that the range of exudation has increased.
Further, from Examples 1 to 5, it was found that the rate of decrease in aeration resistance due to heating increases as the amount of the adsorbent added increases.

Based on the above experimental results, the present invention has a filter for tobacco products having a specific range of hydrocarbon removing function and an oil stain suppressing effect, a cost reduction, and an improved brittleness. It can be seen that tobacco products and electroheated tobacco products can be provided. The

Claims

A filter for tobacco products that contains a granular adsorbent containing fats and oils with a melting point of 50 ° C or higher, and has a reduction rate of aeration resistance per 120 mm of 5% or more when heated at 100 ° C for 10 minutes.
The filter for tobacco products according to claim 1, wherein the average particle size of the adsorbent is 355 μm or more and 1400 μm or less.
The filter for tobacco products according to claim 1 or 2, wherein the content of the adsorbent in the filter medium contained in the filter for tobacco products is 5% by weight or more and 60% by weight or less.
The filter for tobacco products according to any one of claims 1 to 3, wherein the content of fats and oils having a melting point of 50 ° C. or higher is more than 60% by weight when the total amount of the adsorbent is 100% by weight.
The filter for tobacco products according to any one of claims 1 to 4, wherein the fat and oil having a melting point of 50 ° C. or higher is a cured fat and oil having a melting point of 50 ° C. or higher.
The hydrogenated oil having a melting point of 50 ° C. or higher is one or more selected from hydrogenated rapeseed extremely hydrogenated oil, rapeseed extremely hydrogenated oil, palm extremely hydrogenated oil, soybean extremely hydrogenated oil, beef fat extremely hydrogenated oil, and pork fat extremely hydrogenated oil. A filter for a tobacco product according to claim 5.
A tobacco product having the filter for the tobacco product according to any one of claims 1 to 6.
The tobacco product according to claim 7, which is for cigarettes.
The tobacco product according to claim 7, which is for an electrically heated tobacco product.
9. The electric heating type device including a heater member, a battery unit that is a power source of the heater member, and a control unit for controlling the heater member, and inserted so as to be in contact with the heater member. An electrically heated tobacco product consisting of the tobacco products described in.