WO2022118419A1 - Filter segment and tobacco product - Google Patents

Abstract

Provided is a filter segment in which displacement of a breakable capsule is suppressed even if external pressure is applied. This filter segment is for a tobacco product and includes: a filter containing fibers and menthol; and a breakable capsule which is embedded in the filter.

Description

Filter segments and tobacco products

The present invention relates to a filter segment and a tobacco product.

Tobacco products, such as ordinary cigarettes, are made by bundling or folding dried tobacco leaves wrapped in rolling paper and shaped into rods with a filter containing cellulose acetate fiber bundles or a non-woven fabric containing pulp. The filter segment is provided by wrapping the filter with filter wrapping paper and forming it into a rod shape. The cigarette is obtained integrally by winding the cigarette-containing segment over the entire circumference with a chip paper member in a state where the end portion of the tobacco-containing segment and the end portion of the filter segment are connected to each other.

The cigarette is a burned tobacco product that produces smoke by burning the tip of a tobacco-containing segment. Examples of the burned tobacco product include cigars, cigarillos, and the like, in addition to the cigarettes. In addition to tobacco products, tobacco products include non-combustion heating that produces flavor components by heating tobacco-containing segments containing aerosol-producing substrates such as tobacco, perfume components, and glycerin without burning. Examples include tobacco products (eg, Patent Documents 1 and 2). Examples of the method of heating without combustion include an electric resistance, an IH, a heating method by a chemical change or a phase change, and the like.

Regarding the filter segment, conventionally, a destructive capsule containing a fragrance is incorporated in the filter, the destructive capsule is crushed with a finger at the time of use, the scent of the content liquid is enjoyed at the time of suction, and the odor of the butts after extinguishing the fire is masked. (For example, Patent Documents 3 to 6).

Japanese Patent No. 5990500 Japanese Patent No. 529410 Japanese Patent No. 60788657 Special Table 2007-520204 Gazette Special Table 2016-533764 Special Table 2016-524924

The cigarette and cigarette filter segments have many functions such as smoke filtration, smoke dilution, fragrance addition to smoke, retention of parts other than filter media and second filter media (activated carbon, etc.), and adjustment of ventilation resistance. Desired. In addition, in the filter segment of non-combustion heated tobacco products, aerosol filtration, aerosol dilution, aerosol fragrance addition, aerosol cooling, retention of members other than filter media and second filter media (activated carbon, etc.), ventilation resistance More functions such as adjustment of the air conditioner are required. Therefore, in recent years, the filter segments of cigarettes and non-combustion heated tobacco products are required to include a plurality of filter segments having their respective functions and to shorten the axial length of each filter segment to about 5 to 15 mm. ..

Normally, the filter segment is manufactured by cutting a continuous rod-shaped body obtained by bundling a large number of long fibers such as cellulose acetate fibers and continuously winding them on a plane perpendicular to the longitudinal direction. Since the fibers constituting the filter segment extend substantially parallel to the axial direction of the filter segment, the destructive capsule may be displaced when an external force is applied to the filter segment containing the destructive capsule. If the destructive capsule is misaligned, the destructive capsule may not be easily crushed. In particular, when the length of the filter segment in the axial direction is short, the holding capacity of the destructive capsule is low because there are few places where the fibers are entangled with each other, and the position of the destructive capsule is likely to shift when an external force is applied. Also, significant misalignment can cause the destructive capsule to deviate out of the filter segment.

An object of the present invention is to provide a filter segment in which the misalignment of the destructive capsule is suppressed even when an external force is applied, and a tobacco product containing the filter segment.

The filter segment according to the present invention is
With filters containing fiber and menthol,
The destructive capsule embedded in the filter and
Is a filter segment for tobacco products containing.

The tobacco product according to the present invention is
Tobacco-containing segments and
Includes the filter segment according to the present invention.

According to the present invention, it is possible to provide a filter segment in which the misalignment of the destructive capsule is suppressed even when an external force is applied, and a tobacco product containing the filter segment.

It is sectional drawing which shows an example of the filter segment which concerns on this invention. It is sectional drawing which shows an example of the filter segment which concerns on this invention which has a 1st hardened structure and a 2nd hardened structure. It is sectional drawing which shows the columnar region and the fan columnar region in an example of the filter segment which concerns on this invention. It is a schematic diagram which shows an example of the manufacturing apparatus of the filter segment used for manufacturing the filter segment which concerns on this invention. It is an enlarged schematic diagram around the destructive capsule supply member of the manufacturing apparatus of the filter segment which is an example. It is sectional drawing which shows an example of the state at the time of embedding a destructive capsule in a fiber by a destructive capsule supply member. It is a schematic horizontal sectional view which shows an example of the continuous fiber bundle before cutting. It is sectional drawing which shows an example of the cigarette product (cigarette) which concerns on this invention. It is sectional drawing which shows another example of the tobacco product (cigarette) which concerns on this invention. It is a schematic diagram which shows an example of the tobacco product (non-combustion heated tobacco product) and the heating apparatus which concerns on this invention. FIG. 5 is an enlarged photograph showing a state in which a destructive capsule and a cellulose acetate fiber existing around the destructive capsule are fused in the filter segment of Example 1. FIG. 6 is an enlarged photograph showing that in the filter segment of Example 1, a cocoon-shaped first cured structure in which cellulose acetate fibers were fused by triacetin was formed around a destructive capsule. It is an enlarged photograph which shows an example of the 2nd hardening structure of the filter segment which concerns on this invention. It is a schematic diagram which shows the pinching tester used in the position shift evaluation of the destructive capsule of an Example and a comparative example.

[Filter segment]
The filter segment according to the present invention is a filter segment for a tobacco product containing a filter containing fibers and menthol and a destructive capsule embedded in the filter. The filter segment may be located downstream of the tobacco-containing segment in the tobacco product and may be located at the mouth end of the tobacco product.

In the filter segment according to the present invention, since the filter contains menthol in addition to fibers, it is possible to suppress the misalignment of the destructive capsule even when a force is applied from the outside of the filter. The effect of suppressing the misalignment of the destructive capsule is remarkable when the menthol is localized in the center of the filter segment, and the misalignment of the destructive capsule is remarkable when the menthol and the plasticizer are localized in the center of the filter segment. The effect of suppressing menthol is particularly remarkable. Observation of the filter segment according to the present invention at micrometer resolution reveals menthol crystals growing on the fibers, which increase the friction between the fibers and the destructive capsules. It is thought that it is. Due to the above-mentioned effects, the displacement of the destructive capsule is sufficient even when the axial length of the filter segment is as short as 5 to 15 mm, for example, and the holding capacity of the destructive capsule of the fibers constituting the filter segment is low. Can be suppressed. In addition, the inclusion of menthol in the filter can supply flavor to the user.

In a preferred embodiment of the filter segment according to the present invention, the filter segment is formed by fusing the fibers located in the vicinity of the destructive capsule with a plasticizer (hereinafter referred to as a first plasticizer). It has a first cured structure that covers the destructive capsule. In the filter segment having the first cured structure, the destructive capsule is covered in a cocoon shape by the first cured structure, so that the movement of the destructive capsule is further restricted even when a force is applied from the outside of the filter. Therefore, the misalignment of the destructive capsule can be further suppressed.

Further, in a preferred embodiment of the filter segment according to the present invention, the filter segment is formed by fusing the fibers located in the vicinity of the central axis of the filter segment (hereinafter, also referred to as axis A) with a plasticizer. It has a second cured structure. In the filter segment having the second cured structure, the movement of the destructive capsule is further restricted by the presence of the second cured structure formed in the vicinity of the axis A and extending in the axial direction of the filter segment from the destructive capsule. Therefore, the misalignment of the destructive capsule can be further suppressed.

The first plasticizer is the same as a plasticizer such as triacetin (hereinafter, also referred to as a second plasticizer) which is usually added uniformly in advance to the fibers constituting the filter in order to adjust the hardness of the filter. Since it can be used, it is not necessary to separately use a general adhesive which is not normally added to the filter for fusion. Therefore, the misalignment of the destructive capsule can be suppressed without changing the physical characteristics of the filter, and the manufacturing cost can be reduced. Since the second plasticizer is uniformly added to the fibers before embedding the destructive capsule, it does not contribute to local fiber fusion. That is, the conventional filter segment does not have the first cured structure or the second cured structure. It is preferable that the filter segment according to the present invention has both the first cured structure and the second cured structure because the misalignment of the destructive capsule can be further suppressed.

Further, in a preferred embodiment of the filter segment according to the present invention, the destructive capsule and the fiber constituting the filter are fused by the first plasticizer. In this aspect, even when a force is applied from the outside of the filter, the destructive capsule can be further suppressed from being displaced by the fusion. Since the second plasticizer is uniformly added to the fibers before embedding the destructive capsules, it is solidified at the time of embedding the destructive capsules, and the fibers constituting the destructive capsules and the filter. Does not contribute to fusion with. That is, in the conventional filter segment, the destructive capsule and the fiber constituting the filter are not fused by the plasticizer. Hereinafter, the details of the present invention will be described.

An example of the filter segment according to the present invention is shown in FIG. 1 (a). The filter segment 10 shown in FIG. 1A is cylindrical and has a filter 11, a destructive capsule 12, and a filter wrapping paper 13. The filter 11 is composed of fibers such as cellulose acetate fibers and menthol. Menthol can be attached or supported, for example, on fibers. The fibers extend substantially parallel to the axial direction of the filter segment 10 (horizontal direction in FIG. 1). The destructive capsule 12 is embedded in the filter 11 and is present between the fibers. A filter wrapping paper 13 such as paper is wrapped around the filter 11 containing the destructive capsule 12. The filter wrapping paper 13 may not be wrapped around the filter 11.

Another example of the filter segment according to the present invention is shown in FIG. 1 (b). In the filter segment 10 shown in FIG. 1 (b), the filter 11 is composed of fibers and menthol, and the destructive capsule 12 is located on the axis A, which is the central axis of the filter segment 10. The filter segment 10 is formed in the vicinity of the axis A and the first cured structure 14 covering the destructive capsule 12, which is formed by fusing the fibers located in the vicinity of the destructive capsule 12 with the first plasticizer. It has a second cured structure 15 formed by fusing the located fibers with the first plasticizer. In the filter segment 10, the first cured structure 14 and the second cured structure 15 are bonded to each other, and the second cured structure 15 is formed so as to extend from the first cured structure 14 along the axis A. There is. Although not shown in FIG. 1 (b), the surface of the destructive capsule 12 and the fibers of the filter 11 located in the vicinity of the destructive capsule 12 are fused by the first plasticizer.

(filter)
The filter contains fibers and menthol. The fibers can extend substantially parallel to the axial direction (central axis) of the filter segment. Here, "extending" substantially parallel "to the axial direction of the filter segment means that the fiber extends so that the direction in which the fiber extends is within ± 10 ° with respect to the axial direction of the filter segment. Examples of the fiber include cellulose acetate fiber, polypropylene fiber and the like, and cellulose acetate fiber is preferable. Acetate tow, which is a bundle of cellulose acetate fibers, has, for example, single yarn fineness: 1.9 to 12.0 (g / 9000 m), total fineness: 10000 to 44000 (g / 9000 m), and number of fibers: 830 to 23500 (lines). ), Ventilation resistance: 100 to 600 (mmH ₂ O / 120 mm), toe mass: 0.300 to 1.100 (g / piece).

The content of menthol in the filter of the entire filter segment is preferably 1.0 to 20.0% by mass, more preferably 3.0 to 15.0% by mass, and 4.0 to 6.0. It is more preferably mass%, most preferably 4.5 to 5.5 mass%. When the content is 1.0% by mass or more, the misalignment of the destructive capsule can be sufficiently suppressed. Further, when the content is 20.0% by mass or less, the menthol crystallized in the fiber of the filter segment becomes excessive, and the air permeability of the filter segment is not impaired.

(Destructive capsule)
In the present invention, the "destructive capsule" refers to a capsule that can be crushed by applying an external force. The destructive capsule can contain a film and a content liquid containing a fragrance or the like contained in the film. As the material of the film, an edible material can be used, and examples thereof include starch, dextrin, polysaccharides, agar, gellan gum, gelatin, natural gelling agents, glycerin, sorbitol, calcium chloride and the like. These may be used alone or in combination of two or more. That is, the surface of the destructive capsule is composed of at least one compound selected from the group consisting of starch, dextrin, polysaccharides, agar, gellan gum, gelatin, natural gelling agents, glycerin, sorbitol, and calcium chloride. Can be done. Since these materials are mainly highly hydrophilic, when the first plasticizer is added, they have excellent affinity with the mixture in which the amphoteric first plasticizer and the fiber material are compatible and are highly fused. Can show sex. The film can further contain a fragrance. Further, it is preferable that the destructive capsule is colored so that the user can easily recognize the position of the destructive capsule when the user crushes the destructive capsule. From this viewpoint, it is preferable that the film contains a colorant such as Blue No. 1.

As the fragrance contained in the content liquid, any fragrance used in tobacco products such as menthol and vegetable essential oil can be used. Specifically, menthol, leaf tobacco extract, natural vegetable flavors (eg, cinnamon, sage, herbs, chamomile, kudzu, sweet tea, cloves, lavender, cardamon, chowji, nutmeg, bergamot, geranium, honey essence, rose oil. , Lemon, orange, coconut peel, caraway, jasmine, ginger, coriander, vanilla extract, spear mint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, Iran Iran, fennel, anis, licorice, St. John's bread, Sumomo extract, peach extract, etc.), sugars (eg, glucose, fructose, isomerized sugar, caramel, etc.), cocoa (powder, extract, etc.), esters (eg, isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.) Etc.), ketones (eg, menthon, ionone, damasenone, ethylmaltor, etc.), alcohols (eg, geraniol, linalyl, anetol, eugenol, etc.), aldehydes (eg, vanillin, benzaldehyde, anisaldehyde, etc.), lactones (For example, γ-undecalactone, γ-nonalactone, etc.), animal fragrances (for example, musk, ambassalis, civet, castorium, etc.), hydrocarbons (for example, limonene, pinen, etc.) and the like can be mentioned. These fragrances may be used alone or in combination of two or more.

The content liquid can contain a solvent. As the solvent, a solvent suitable for fragrance can be used, and for example, medium chain fatty acid triglyceride (MCT) (specifically, tricapryl / glycerin caprate), propylene glycol, water, ethanol and the like can be used. The content liquid may further contain other additives such as other solvents, dyes, emulsifiers and thickeners.

The method for producing the destructive capsule is not particularly limited, but for example, a dropping method can be used. In the dropping method, by using a double nozzle and simultaneously ejecting the content liquid from the inner nozzle and the liquid coating substance from the outer nozzle, the coating liquid can wrap the content liquid without having a seam. Therefore, according to the method, a destructive capsule having a seamless film can be produced.

The shape of the destructive capsule is not particularly limited, but it can be spherical or cylindrical, for example. The spherical shape includes both a substantially spherical shape having a substantially circular cross section and an elliptical shape having an elliptical cross section. The destructive capsule is preferably substantially spherical. Here, the substantially spherical shape means that the sphericity is 95% or more. The sphericity is calculated as follows. 100 g of destructive capsules were supplied to a CAMSIZER P4 (trade name, RETSCH TECHNOLOGY) measuring device, and the minor and major diameters were analyzed from the images of each capsule taken by the CCD camera provided in the measuring device. Calculated using the new particle shape descriptor function of.

When the destructive capsule is substantially spherical, the diameter of the destructive capsule (maximum delivery length of the destructive capsule) is preferably 1.0 to 3.5 mm, preferably 1.5 to 3.5 mm. More preferably, it is more preferably 2.0 to 3.5 mm. When the diameter of the destructive capsule is 1.0 mm or more, a sufficient amount of the content liquid containing a fragrance can be filled in the film of the destructive capsule, and a sufficient feeling of satisfaction can be given to the user. In addition, when the user crushes the destructive capsule, the position of the destructive capsule can be easily recognized. Since the diameter of the destructive capsule is 3.5 mm or less, the ratio of the cross-sectional area of the destructive capsule to the cross-sectional area of the filter segment can be reduced, so that the increase in the ventilation resistance of the filter segment due to the presence of the destructive capsule can be suppressed. , The ease of sucking by the user is improved. In addition, minute ridges may be present on the surface of the destructive capsule. The presence of the ridge serves as a fusion point with the fiber, allowing the destructive capsule and the fiber to be better fused with the first plasticizer.

The destructive capsule is embedded in the filter and exists between the fibers that make up the filter. One destructive capsule may be embedded in the filter of one filter segment, or two or more (for example, 2 to 10) capsules may be embedded. The destructive capsule is preferably arranged at a position overlapping the axis A, which is the central axis of the filter segment, and more preferably the center of the destructive capsule is located on the axis A. Further, when the position of the end portion on the mouthpiece end side is 0% and the position of the end portion on the side opposite to the mouthpiece end is 100% in the axial direction of the filter, the center of the destructive capsule is 16.7% or more. It is preferably located within a section of 83.3%, more preferably within a section of 30.0% to 53.3%. By locating the center of the destructive capsule within a section of 16.7% or more, the destructive capsule can be significantly displaced and the deviation to the outside of the filter segment can be further prevented. In addition, since the destructive capsule is present in the section of 83.3% or less, the user can easily crush the destructive capsule not only by crushing the destructive capsule with a finger but also by chewing with a tooth at the time of use. can do. Further, since the flavor generation source is close to the mouthpiece end, the user can enjoy a stronger fragrance feeling.

The ends of the rind of the destructive capsule can be located within the 10.8-89.2% section as the largest section and within the 12.0-88.0% section as the smaller section. It can be located within a section of 32.5% to 67.5% as a smaller section, and can be located within a section of 36.0% to 64.0% as a minimum section. Further, when the center of the destructive capsule is located at the center of the mouthpiece end of the filter segment and the end opposite to the mouthpiece end, the end of the outer skin of the destructive capsule is 32.5% to 67. It can be located within a 5% section, a smaller section can be located within a 36.0% to 64.0% section, and a smaller section can be located within a smaller section of 44.2% to 55.8%. It can be located within a section and can be located within a section of 45.3% to 54.7% as the smallest section.

(First cured structure)
The first cured structure is a cured structure formed by fusing fibers located in the vicinity of the destructive capsule with the first plasticizer, and covers at least a part of the destructive capsule in a cocoon shape. There is. As a result, the movement of the destructive capsule can be further suppressed even when a force is applied from the outside of the filter. In the first cured structure, at least a part of the fibers located in the vicinity of the destructive capsule may be fused to each other by the first plasticizer. For example, as shown in the enlarged photograph shown in FIG. 12, the first cured structure can include a portion where the fibers are fused to each other by the first plasticizer and a portion where the fibers are not fused. .. Note that FIG. 12 is an enlarged photograph taken by taking out the destructive capsule for convenience. The thickness of the first cured structure can be, for example, 0.1 to 1.0 mm.

In the first cured structure, for example, as will be described later, the first plasticizer is previously applied to the surface of the destructive capsule, and the destructive capsule is embedded in the filter by a member into which the destructive capsule is inserted. Can be formed with. In this case, the first plasticizer applied to the surface of the destructive capsule diffuses into the fibers located in the vicinity of the destructive capsule, and the fibers located in the vicinity of the destructive capsule are fused by the first plasticizer. This forms a cocoon-shaped first hardened structure that surrounds the destructive capsule.

(Second cured structure)
The second cured structure is a cured structure formed by fusing fibers located in the vicinity of the axis A, which is the central axis of the filter segment, with the first plasticizer. That is, the second cured structure is continuously formed so as to extend from the destructive capsule to the axis A. By having such a second curing structure in the filter segment, it is possible to further suppress the misalignment of the destructive capsule even when an external force is applied. If the filter segment also has a first cured structure, the second cured structure is coupled to the first cured structure and is formed to extend along the axis A from the first cured structure. For example, as shown in FIG. 13, the first cured structure that covers the destructive capsule in a cocoon shape is integrated with the second cured structure formed so as to extend along the axis A from the first cured structure. It has become. In FIG. 13, for convenience, a part of the destructive capsule is photographed so as to be exposed, but the destructive capsule may be completely covered by the first cured structure.

The second cured structure can be, for example, a cylinder with the axis A as the central axis. At this time, the diameter of the cylinder can be smaller than the diameter of the destructive capsule, for example, 14.0 to 86.0% of the diameter of the destructive capsule, 0.5 to 3.0 mm in diameter. be able to. In the second cured structure, at least a part of the fibers located in the vicinity of the axis A may be fused to each other by the first plasticizer. The second cured structure can include a portion where the fibers are fused to each other by the first plasticizer and a portion where the fibers are not fused.

The second cured structure may also be formed in a portion extending from the axis A to the peripheral edge of the filter segment. That is, in the second cured structure, the fibers located in the vicinity of the axis A are fused with the first plasticizer, and the fibers located in the portion extending from the axis A to the peripheral edge of the filter segment are also the first. It may be formed into a rib shape by being fused with the plasticizer of. For example, as shown in FIG. 2, the filter segment 20 has a first cured structure 22 that covers the destructive capsule 23 and a second cured structure 24 that extends from the axis A to the peripheral edge of the filter segment 20. be able to. The first cured structure 22 and the second cured structure 24 are formed by fusing the fibers constituting the filter 21 with the first plasticizer. In this way, the first cured structure 22 and the second cured structure 24 can be combined and integrated.

The second cured structure is formed by, for example, as will be described later, a first plasticizer is previously applied to the surface of a member into which a destructive capsule is inserted, and the destructive capsule is embedded in a filter by the member. be able to. In this case, the first plasticizer applied to the surface of the member into which the destructive capsule is inserted is located near the fiber that comes into contact with the member when the destructive capsule is embedded in the filter by the member, that is, in the vicinity of the axis A. A second cured structure is formed by diffusing the fibers and the fibers existing in the region extending from the axis A to the peripheral edge of the filter segment and fusing the fibers with each other by the first plasticizer. .. As will be described later, when the member is, for example, an insertion wheel and destructive capsules are continuously embedded at equal intervals in a long continuous filter segment before cutting, the second cured structure is the filter segment. It is continuously provided substantially parallel to the axial direction of. That is, the second cured structure is provided so as to extend linearly along the axial direction of the filter segment.

(Plasticizer)
The first plasticizer is not particularly limited as long as it is an edible plasticizer usually used for tobacco products, but for example, triethyl citrate, acetyltriethyl citrate, dibutyl phthalate, diallyl phthalate, diethyl phthalate, phthalate. Dimethyl acid, di-2-methoxyethyl phthalate, dibutyl tartrate, ethyl ortho-benzoylbenzoate, ethylphthalyl ethylglycolate, methylphthalyl ethylglycolate, N-ethyltoluenesulfoamide, triacetin, ortho-para-toluenesulfonate Examples thereof include cresyl, triethyl phosphate, triphenyl phosphate, tripropionin and the like. These first plasticizers may be used alone or in combination of two or more. Among these, triacetin is preferable as the first plasticizer.

As mentioned above, apart from the first plasticizer used for fusion, the filter usually contains a second plasticizer that is pre-uniformly added to the fibers to adjust the hardness of the filter. It may be. As the second plasticizer, the same plasticizer as the first plasticizer used for the above-mentioned fusion can be used. The first plasticizer and the second plasticizer may be the same or different. The second plasticizer does not contribute to the formation of the first and second cured structures and the fusion of the destructive capsule and the fiber.

In the present invention, "fibers are fused with the first plasticizer" means that the fibers may be fused only with the first plasticizer, and the fibers may be fused with the fiber material. It may be fused by a mixture in which one plasticizer is compatible. That is, the fused portion between the fibers may include the first plasticizer. Further, in the present invention, "the destructive capsule and the fiber are fused by the first plasticizer" means that the destructive capsule and the fiber may be fused only by the first plasticizer. The destructive capsule and the fiber may be fused by a mixture of the fiber material and the first plasticizer, and the destructive capsule and the fiber may be the film material of the destructive capsule and the first. It may be fused by a mixture in which the plasticizer is compatible, and the destructive capsule and the fiber are fused by the mixture in which the fiber material, the film material of the destructive capsule and the first plasticizer are compatible. May be. That is, the fused portion between the destructive capsule and the fiber may include the first plasticizer. Further, at least a part of the surface of the destructive capsule and at least a part of the fibers located in the vicinity of the surface of the destructive capsule may be fused by the first plasticizer. The fact that the destructive capsule and the fiber are fused by the first plasticizer can be determined by the enlarged photograph near the surface of the destructive capsule and the identification of the compound contained in the fused portion. For example, in the enlarged photograph shown in FIG. 11, it can be confirmed that a part of the surface of the destructive capsule and a part of the fiber are fused.

In the fusion of the destructive capsule and the fiber by the first plasticizer, for example, as will be described later, the first plasticizer is previously applied to the surface of the destructive capsule, and the destructive capsule is subjected to the destructive capsule. It can be done by embedding in the filter by the member to insert. In this case, the first plasticizer applied to the surface of the destructive capsule adheres to the fiber located in the vicinity of the destructive capsule, and for example, a mixture in which the fiber material and the first plasticizer are compatible is formed and destroyed. The sex capsule and the fiber are fused.

(Plasticizer content)
The plasticizer content (total of the first plasticizer and the second plasticizer) in the filter of the entire filter segment is preferably 5 to 15% by mass, preferably 7.8 to 13.3% by mass. It is preferably 9.0 to 13.3% by mass, more preferably 10.3 to 13.3% by mass, and most preferably 12.1 to 13.3% by mass. preferable. When the content is 5% by mass or more, the first cured structure or the second cured structure can be sufficiently formed, and the hardness of the filter can be adjusted. Further, when the content is 15% by mass or less, it is possible to suppress deterioration of filter physical properties such as ventilation resistance due to the formation of cavities in the filter, and it is possible to suppress odor due to the plasticizer. The content of the plasticizer is quantified by gas chromatography.

The content of the first plasticizer in the filter of the entire filter segment is preferably 0.1 to 3% by mass, more preferably 0.2 to 2% by mass, still more preferably 0.3 to 1.5% by mass. The content of the second plasticizer in the filter of the entire filter segment is preferably 3 to 9% by mass, more preferably 4 to 8% by mass, still more preferably 5 to 7% by mass. When the first plasticizer and the second plasticizer are the same, the content of the second plasticizer is the content of the first plasticizer after the second plasticizer is applied to the fiber. It can be calculated by measuring the content of the second plasticizer before embedding the destructive capsule with the attached in the filter. Further, the content of the first plasticizer can be calculated by subtracting the content of the second plasticizer from the total content of the first plasticizer and the second plasticizer.

When the diameter (maximum length of delivery) of the destructive capsule is 5 mm or less (for example, 1.0 to 3.5 mm), the section in the vicinity of the destructive capsule, that is, the destructive capsule is used in the axial direction of the filter segment. The plasticizer content (mass%, total of the first plasticizer and the second plasticizer) in the 5 mm wide section (section near the capsule) included in the center is the section adjacent to the neighborhood section, that is, the neighborhood section. The content of the plasticizer (mass%, total of the first plasticizer and the second plasticizer) in the section other than the above (adjacent section) is preferably 1.05 times or more, preferably 1.20 times or more. Is more preferable. Since the content of the plasticizer in the section near the capsule is 1.05 times or more the content of the plasticizer in the adjacent section, the concentration of the plasticizer is high in the vicinity of the destructive capsule and the periphery of the destructive capsule. Contributes to the formation of a cocoon-shaped first hardened structure that covers the. In addition, the fusion between the destructive capsule and the fiber becomes stronger. When a plurality of destructive capsules are contained in the filter segment, it is preferable that the above conditions are satisfied in all the sections including the destructive capsules.

The filter segment is cylindrical, centered on axis A, which is the central axis of the filter segment, and has a length of 75% (preferably 65%, more preferably 55%) of the diameter of the filter segment as the diameter. The content of the plasticizer in the columnar region (% by mass, the sum of the first plasticizer and the second plasticizer) is the content of the plasticizer in the filter segment outside the columnar region (% by mass). , Preferably higher than the sum of the first plasticizer and the second plasticizer). Since the content of the plasticizer in the columnar region is higher than the content of the plasticizer in the filter segment outside the columnar region, the concentration of the plasticizer is high in the vicinity of the destructive capsule, and the destructive capsule. Contributes to the formation of a cocoon-shaped first hardened structure that surrounds the. In addition, the fusion between the destructive capsule and the fiber becomes stronger.

The content of the plasticizer in the columnar region is preferably 5 to 20% by mass, and the content of the plasticizer in the filter segment outside the columnar region is preferably 3 to 8% by mass. The content of the plasticizer in the columnar region is more preferably 6 to 18% by mass, and the content of the plasticizer in the filter segment outside the columnar region is more preferably 4 to 7% by mass. .. The content of the plasticizer in the columnar region is 6.7 to 16% by mass, and the content of the plasticizer in the filter segment outside the columnar region is 5 to 6.4% by mass. Is even more preferable.

Further, in the filter segment, the fibers located in the vicinity of the axis A are fused with the first plasticizer, and the fibers located in the portion extending from the axis A to the peripheral edge of the filter segment are the first plasticizer. In the case of having the second cured structure fused in the above, the filter segment is columnar and has 75% (preferably 65%, more preferably 55%) of the diameter of the filter segment centered on the axis A. The content of the plasticizer (% by mass) inside a columnar region having a diameter of 30 to 90 ° and a fan-columnar region having a central angle of 30 to 90 ° radially extending from the axis A to the peripheral edge of the filter segment. , The total of the first plasticizer and the second plasticizer) is the content of the plasticizer in the filter segments outside the columnar region and the fan-columnar region (% by mass, with the first plasticizer). It is preferably higher than the sum of the second plasticizers). Specifically, as shown in FIG. 3, a columnar region 33 centered on the axis A and having a diameter of 75% of the diameter of the filter segment, and from the axis A to the peripheral edge of the filter segment 30. The content of the plasticizer inside the fan columnar region 34 having a central angle Φ extending radially from 30 to 90 ° is higher than the content of the plasticizer in the columnar region 33 and the outer region 31 of the fan columnar region 34. Is also preferable. The content of the plasticizer in the columnar region and the fan columnar region is higher than the plasticizer content in the columnar region and the filter segment outside the fan columnar region, whereby the destructive capsule. Contributes to the formation of a cocoon-shaped first hardened structure that surrounds the. It also contributes to the formation of a second cured structure extending from the axis A to the peripheral edge of the filter segment. Further, the concentration of the plasticizer is high in the vicinity of the destructive capsule, and the fusion between the destructive capsule and the fiber becomes stronger.

The content of the plasticizer in the columnar region and the fan columnar region is 5 to 20% by mass, and the content of the plasticizer in the columnar region and the filter segment outside the fan columnar region. Is preferably 3 to 8% by mass. The content of the plasticizer in the columnar region and the fan columnar region is 6 to 18% by mass, and the content of the plasticizer in the columnar region and the filter segment outside the fan columnar region. Is more preferably 4 to 7% by mass. The content of the plasticizer in the columnar region and the fan columnar region is 6.7 to 16% by mass, and the plasticizer in the columnar region and the filter segment outside the fan columnar region. The content is more preferably 5 to 6.4% by mass.

(Dimensions and physical properties of filter segments)
The axial length of the filter segment is preferably short, for example, 5 to 15 mm, and 7 to 15 mm, from the viewpoint of more preferably obtaining the effect of suppressing the displacement of the destructive capsule in the present invention. Is more preferable, and 10 to 15 mm is even more preferable. The ratio (d / L) of the diameter (d) of the destructive capsule to the axial length (L) of the filter segment is preferably 0.1 to 0.5, preferably 0.15 to 0.4. It is more preferably present, and more preferably 0.2 to 0.3. The peripheral length of the filter segment is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm.

The ventilation resistance of the filter segment is preferably 4 to ₂₀₀ mmH2O. The ventilation resistance of the filter segment is measured by a ventilation resistance measuring device (FQA, QTM, etc.). When the filter segment is columnar, the roundness in the cross section perpendicular to the axial direction of the filter segment is preferably 85 to 100%. The roundness is measured by a circumference measuring device (laser). The hardness of the filter segment is preferably 75 to 100%. The hardness of the filter segment is measured by the amount of deformation when a constant load of 300 gf is applied with a hardness measuring device (FQA or the like).

(Manufacturing method of filter segment)
The method for manufacturing the filter segment according to the present invention is not particularly limited, but the filter segment can be manufactured by using, for example, the filter segment manufacturing apparatus 40 shown in FIG. First, the fiber bundle 41 is supplied from a fiber dispenser, usually in the form of compressed fibers of a bale 42. The fiber bundle 41 is stretched and loosened in the strand treatment unit 43 using compressed air and a cylinder. As a result, the fiber bundle 41 expands, allowing more air to be included in the meantime. The fiber bundle 41 is then moistened with a second plasticizer and menthol. For example, by uniformly spraying the second plasticizer and menthol on the entire fiber bundle 41, a predetermined amount of the second plasticizer and menthol can be uniformly added to the fiber bundle 41. Here, the second plasticizer and the menthol may be added to the fiber bundle 41 at the same time, the second plasticizer may be added first, or the menthol may be added first. After that, the fiber bundle 41 is passed through the funnel-shaped insertion member 44, and the fiber bundle 41 is precompressed. The insertion member 44 is usually provided with an opening so that excess air between the fiber bundles 41 can be easily discharged. A destructive capsule supply member 46 is arranged downstream of the insertion member 44, and the destructive capsule supply member 46 embeds the destructive capsule in the fiber bundle 41.

FIG. 5 shows an enlarged view of the area around the destructive capsule supply member. The destructive capsule supply member 50 shown in FIG. 5 includes a rotatable disk-shaped insertion wheel 53 in which a plurality of destructive capsule supply pockets 55 are arranged at equal intervals around the destructive capsule supply member 50. The destructive capsule supply pocket 55 can hold the destructive capsule 54. In the fiber bundle that has passed through the insertion member 51, the destructive capsules 54 held in the destructive capsule supply pocket 55 of the insertion wheel 53 are continuously embedded at equal intervals in the fiber guide member 52. Here, the first plasticizer 57 is supplied to the peripheral edges of the destructive capsule 54 and the insertion wheel 53 by the first plasticizer supply member 56 before the destructive capsule 54 is embedded in the fiber bundle. Ru. The first plasticizer supply member 56 adheres the first plasticizer 57 to the surface of the destructive capsule 54 and the peripheral edge of the insertion wheel 53, for example, by spraying the first plasticizer 57. Can be done. The first plasticizer supply member 56 can spray the first plasticizer 57 toward the interface between the destructive capsule 54 and the insertion wheel 53.

As described above, by supplying the first plasticizer to the peripheral portion of the destructive capsule and the insertion wheel in advance by the first plasticizer supply member, when the destructive capsule is embedded in the fiber bundle, the destructive capsule is embedded. For example, as shown in FIG. 6, the first plasticizer 62 adhering to the surface of the destructive capsule 61 and the peripheral edge of the insertion wheel 63 is a fiber 60 located in the vicinity of the destructive capsule 61 and the insertion wheel 63. Adheres and spreads to. Therefore, the first plasticizer adhering to the surface of the destructive capsule adheres to the fibers located around the destructive capsule and fuses the destructive capsule with the fibers located around the destructive capsule. Further, the first plasticizer adhering to the surface of the destructive capsule diffuses into the fibers located around the destructive capsule, and the fibers are fused with each other by the first plasticizer to form a cocoon-like first hardening. The structure is formed to wrap around the destructive capsule. Further, the first plasticizer adhering to the peripheral edge of the insertion wheel extends from the fiber in contact with the peripheral edge of the insertion wheel, that is, the fiber located near the axis A, and from the axis A to the peripheral edge of the filter segment. A second cured structure is formed in a rib shape, which is diffused into the fibers located in the portions and the fibers are fused with each other by the first plasticizer.

After that, as shown in FIG. 4, the fiber bundle 41 is introduced into the wrapper unit 48, and the fiber bundle 41 is wrapped with filter wrapping paper. The filter wrapping paper is introduced into the adhesive supply unit 47 before being supplied to the wrapper unit 48, and is a side edge portion thereof where the filter wrapping paper is overlapped and bonded after being formed as a filter segment. That is, the adhesive is applied to the glue margin. When the fiber bundle 41 wrapped in the filter wrapping paper passes through the wrapper unit 48, it is formed into a continuous rod-shaped body. Finally, the fiber bundle 41 wrapped in the filter wrapping paper is cut by the rotary cutting head 49 to obtain a filter segment. FIG. 7 shows a schematic horizontal cross-sectional view of the continuous fibers before being cut by the rotary cutting head. The fiber 70 shown in FIG. 7 is wrapped with a filter wrapping paper 71. A cocoon-shaped first cured structure 73 is formed around the destructive capsule 72 so as to cover the destructive capsule 72. Further, the second cured structure 74 is continuously provided substantially parallel to the axial direction (horizontal direction in FIG. 7) of the fiber 70. Filter segments are obtained by cutting the fibers 70 at equal intervals along the dotted lines. As the filter wrapping paper, any cigarette wrapping paper / filter wrapping paper manufactured by a paper manufacturing company can be used, and in particular, 35NFB or 50NFB (trade name, manufactured by Nippon Paper Papylia) can be used.

[Tobacco products]
The tobacco product according to the present invention includes a tobacco-containing segment and a filter segment according to the present invention. Since the tobacco product according to the present invention contains the filter segment according to the present invention, it is possible to suppress the misalignment of the destructive capsule even when an external force is applied.

Tobacco products include ordinary cigarettes, cigarettes, hand-rolled cigarettes, cigarettes such as cigarettes, and tobacco products that can absorb the flavor of tobacco by heating the tobacco with a heater or steaming the tobacco with steam (electronic tobacco). , Non-combustible heated tobacco products such as tobacco products capable of sucking the flavor of tobacco by heating the tobacco with a carbon heat source, and non-heated tobacco products capable of sucking the flavor of tobacco.

(cigarette)
Hereinafter, an embodiment of a cigarette will be described as an example of the tobacco product according to the present invention. As shown in FIG. 8, the cigarette 80 is provided adjacent to the tobacco-containing segment 81, which includes the tobacco chopped 83 (chopped leaves, tobacco) and the wrapping paper 84 wrapped around the tobacco chopped 83, and the tobacco-containing segment 81. The filter segment 82 according to the present invention is included. The tobacco-containing segment 81 and the filter segment 82 are connected by a chip paper member 85 wound on the tobacco-containing segment 81 and the filter segment 82. The chip paper member 85 may have a vent hole in a part of the outer periphery thereof. The number of ventilation holes may be one or a plurality, and for example, 10 to 40 ventilation holes may be formed. When the number of ventilation holes is plurality, the ventilation holes are arranged in an annular shape in a line on the outer peripheral portion of the chip paper member 16, for example. The plurality of ventilation holes can be arranged at substantially constant intervals. By providing the ventilation holes, air is taken into the filter segment 82 from the ventilation holes at the time of suction. By diluting the mainstream smoke with the outside air from the ventilation holes, it is possible to design a product with a desired tar value.

The user can enjoy the flavor of tobacco by igniting the tip of the tobacco-containing segment 81, holding the mouthpiece end of the filter segment 82 in the mouth and sucking it. At that time, by crushing the destructive capsule, the fragrance contained in the content liquid of the destructive capsule is mixed with the mainstream smoke, and the expected flavor is exhibited in the oral cavity of the user. In the present invention, the movement of the destructive capsule is suppressed when the destructive capsule is crushed, so that the user can easily crush the destructive capsule at a desired timing and enjoy the changed flavor. be able to.

The tobacco product according to the present invention may further have at least one or more second filter segments in addition to the filter segment containing the destructive capsule according to the present invention. For example, the cigarette 90 shown in FIG. 9 has a second filter segment 92 between the tobacco-containing segment 91 and the filter segment 93 according to the present invention. The second filter segment 92 may be the same as or different from the filter segment 93 according to the present invention except that it does not have a destructive capsule. Since the second filter segment 92 can have a function different from that of the filter segment 93 according to the present invention, it is possible to impart a plurality of functions to the filter.

(Non-combustion heated tobacco products)
As another example of the tobacco product according to the present invention, an embodiment of a non-combustion heated tobacco product will be described. Non-combustion heated tobacco products belong to the field of so-called electronic cigarettes, in which tobacco-containing segments are heated by an electric heater or the like. FIG. 10 shows an example of a non-combustion heated tobacco system including a tobacco product which is a non-combustion heated tobacco product according to the present invention and a heating device for heating the tobacco product. FIG. 10 is a cross-sectional view showing the tobacco product 100 and the heating device 101 cut along a plane including the central axis C.

The non-combustion heated tobacco system shown in FIG. 10 includes a heating device 101 having a battery 106, an electric heating unit 107, and a recess 108, and a tobacco product 100 that is detachably inserted into the recess 108 of the heating device 101. Has. The recess 108 is recessed in a part of the case 109 of the heating device 101. The battery 106 can be charged and discharged. The electric heating unit 107 is a so-called heater, and has a heat generating element provided so as to surround the recess 108. The heating element of the electric heating unit 107 heats the tobacco-containing segment 102 and releases the flavor from the filling of the tobacco-containing segment 102 into the surrounding air. The heating temperature of the tobacco-containing segment 102 by the electric heating unit 107 is, for example, 400 ° C. or lower, which is lower than the combustion temperature (700 to 800 ° C.) of the heated tobacco product. By heating at such a low temperature, the amount of mainstream smoke generated from the tobacco-containing segment 102 is smaller than that of the heated tobacco product. Therefore, as for the filtration function in the filter segment (104, 105), the lower the filtration function in the heated tobacco product, the more preferable the mainstream smoke amount shared in the user's mouth. That is, it is preferable that the axial length of the filter segment (104, 105) is shorter than the axial length of the filter segment in the heated tobacco product. The axial length of the filter segments (104, 105) can be shortened, and the cylinder portion and other segments having a low filtration rate of mainstream smoke can be arranged in the remaining portion.

The tobacco product 100 is cylindrical and contains a tobacco-containing segment 102 containing a tobacco and an aerosol-generating substrate that generates an aerosol by heating, a tubular segment 103 provided adjacent to the tobacco-containing segment 102, and a cylinder. It has a second filter segment 104 provided adjacent to the shape segment 103, and a first filter segment 105 according to the present invention provided adjacent to the second filter segment 104. The tobacco-containing segment 102, the tubular segment 103, the second filter segment 104, and the first filter segment 105 are connected by a chip paper member 110.

The tobacco-containing segment 102 includes a tobacco filling 111 containing tobacco, an aerosol-forming substrate, and a rolling paper 112 wrapped around the tobacco filling. As the tobacco, tobacco chopped (chopped leaves, tobacco), tobacco sheet chopped, tobacco sheet folded or wound in a circle, tobacco sheet with folds and collected together, etc. can be used. Examples of the aerosol-forming substrate include glycerin, propylene glycol, triethylcitrate, 1,3-butanediol and the like. The wrapping paper 112 may be only paper, or may be paper to which a metal foil having good thermal conductivity such as aluminum foil or stainless steel foil is bonded.

The tubular segment 103 is formed in a cylindrical shape so as to have a predetermined rigidity by, for example, thick paper having a thickness of 100 to 300 μm. The chip paper member 110 is supported by a rigid tubular segment 103, and even when the tobacco product 100 is pressed in the central axis C direction, the chip paper member 110 is prevented from being crushed in the central axis C direction. To. The chip paper member 110 and the tubular segment 103 have a plurality of ventilation holes 113 in a part of the outer periphery thereof. The plurality of ventilation holes 113 penetrate the chip paper member 110 and the tubular segment 103. The number of ventilation holes 113 can be, for example, 10 to 40. The plurality of ventilation holes 113 are arranged in a row, for example, in an annular shape on the outer peripheral portion of the cylinder. The plurality of ventilation holes 113 can be arranged at regular intervals.

The second filter segment 104 may be the same as or different from the first filter segment 105 except that it does not have a destructive capsule. In FIG. 10, one second filter segment 104 is provided between the cylindrical segment 103 and the first filter segment 105, but two or more second filter segments 104 may be provided. .. In this case, the two or more second filter segments 104 may be the same or different from each other. The second filter segment 104 and the first filter segment 105 are connected by a second filter wrapping paper 114.

The user can enjoy the flavor of the tobacco product 100 in the oral cavity by sucking the tobacco product 100 through the first filter segment 105 while the tobacco product 100 is attached to the heating device 101 or removed from the heating device 101. can. Since the tobacco product 100 includes the first filter segment 105 according to the present invention, the movement of the destructive capsule is suppressed, the ease of splitting the destructive capsule can be improved, and the convenience of the user can be improved. In particular, in the tobacco product 100, since the amount of mainstream smoke is small, there is a tendency to shorten the axial length of the first filter segment 105. However, in the present invention, even when the length of the first filter segment 105 is short, the movement of the destructive capsule member can be sufficiently suppressed. Thus, the movement of the destructive capsule is effectively suppressed in the tobacco product 100 having the short first filter segment 105, in which the destructive capsule may fall off from the inside of the first filter segment 105 to the outside. What you can do is useful in product design.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

[Example 1]
(Preparation of filter segment)
Using the filter segment manufacturing apparatus 40 shown in FIG. 4, a filter segment containing a destructive capsule was prepared (mechanical speed: 500 fpm). A fiber bundle 41, which is a cellulose acetate fiber bundle (3.5Y35, tow mass target: 0.636 g / piece), was supplied from a fiber dispenser in the form of compressed fibers of a bale 42. After stretching and loosening the fiber bundle 41 in the strand treatment unit 43 using compressed air and a cylinder, triacetin (also referred to as TA) as a second plasticizer for the fiber bundle 41 and a menthol solution (at room temperature). The solid menthol crystal powder was heated and melted (menthol solution) and sprayed and added uniformly. The addition of the triacetin was carried out with the goal of achieving a content of triacetin as a second plasticizer in the fiber of 6% by mass. Further, the addition of the menthol was carried out with the goal of achieving a menthol content of 5.0% by mass with respect to the fibers.

After passing the fiber bundle 41 through the insertion member 44, the destructive capsule was placed in the fiber bundle 41 by the destructive capsule supply member 46. For the destructive capsule, a substantially spherical capsule having a diameter of 3.5 mm was used, in which a mixture of medium-chain fatty acid triglyceride, menthol and vegetable essential oil as a fragrance was covered with a film containing gellan gum, oxidized starch and calcium chloride. The destructive capsule supply member 46 includes an insertion wheel in which a plurality of destructive capsule supply pockets are arranged around the destructive capsule supply member 46, and first plasticizing by a first plasticizer spray member 45 with respect to the peripheral edge of the insertion wheel. Triacetin as an agent was sprayed. In this example, triacetin was sprayed at 21 g / min with the goal of achieving a content of triacetin as the first plasticizer in the fiber of 3% by mass.

The sprayed triacetin adhered to the surface of the destructive capsule and the peripheral edge of the insertion wheel. Therefore, triacetin adhering to the surface of the destructive capsule fused the destructive capsule with the cellulose acetate fibers present around the destructive capsule. An enlarged photograph showing the fusion is shown in FIG. In addition, triacetin adhering to the surface of the destructive capsule diffuses into the cellulose acetate fibers existing around the destructive capsule, and the first cocoon-shaped cured structure in which the cellulose acetate fibers are fused by triacetin is the destructive capsule. Formed around. An enlarged photograph showing the formation of the cocoon-shaped first cured structure is shown in FIG. In FIG. 12, the destructive capsule was taken out for convenience and an enlarged photograph was taken. Further, the triacetin adhering to the peripheral edge of the insertion wheel of the destructive capsule supply member 46 is in contact with the peripheral edge of the insertion wheel, that is, the cellulose acetate fiber located in the vicinity of the shaft A, and the shaft A. A second cured structure in which the cellulose acetate fibers were fused with triacetin was formed in a rib shape.

After that, the fiber bundle 41 was introduced into the wrapper unit 48 (trade name: 50NFB, manufactured by Nippon Paper Papylia), and the fiber bundle 41 was wrapped with filter wrapping paper. The filter wrapping paper is introduced into the adhesive supply unit 47 before being supplied to the wrapper unit 48, and is a side edge portion thereof where the filter wrapping paper is overlapped and bonded after being formed as a filter segment. That is, an adhesive was applied to the glue margin. The fiber bundle 41 wrapped in the filter wrapping paper was formed into a continuous rod shape when it passed through the wrapper unit 48. Finally, the rod-shaped body is cut by the rotary cutting head 49, and a columnar continuous filter segment having a length of 120 mm in the long axis direction and containing eight destructive capsules, that is, a filter segment having eight consecutive 15 mm filter segments is formed. Obtained. Table 1 shows the target value and the measured value of each physical property of the continuous filter segment.

In Example 1, two continuous filter segments were produced in the manufacturing apparatus 40 in order to quantify each of the first and second plasticizers. That is, triacetin as the second plasticizer is sprayed uniformly in the manufacturing apparatus 40 to add triacetin as the first plasticizer without operating the first plasticizer spraying member 45 of the manufacturing apparatus 40. A continuous filter segment containing triacetin as a second plasticizer without spraying was made, followed by operating the first plasticizer spraying member 45 of the manufacturing apparatus 40 to spray triacetin as the first plasticizer. Then, a continuous filter segment containing a first plasticizer and triacetin as a second plasticizer was produced while keeping the remaining settings of the manufacturing apparatus 40. The former continuous filter segment was used as a sample for quantifying triacetin as a second plasticizer. The latter continuous filter segment was used as a sample for quantifying the first plasticizer and triacetin as the second plasticizer. The quantification result of triacetin as the first plasticizer in Example 1 was obtained as the difference between the quantification result of triacetin in the latter continuous filter segment and the former continuous filter segment.

(Evaluation of the physical properties)
<Triacetin content>
The content of triacetin in the filter segment was calculated as a percentage of the mass of the filter fiber and the mass of triacetin contained in the continuous filter segment using the continuous filter segment containing the capsule as a sample. The mass of the filter fibers was weighed on a precision precision balance. The mass of triacetin was quantified by gas chromatography (manufactured by Agilent Technologies). The triacetin extract used for quantification was prepared by immersing the sample in 25 ml ethanol (special grade) containing 1 mg / 3 ml anethole as an internal standard, shaking at 200 ± 10 round trips / minute for 20 minutes, and then allowing to stand overnight. , Obtained by shaking again for 20 minutes. For the quantification of triacetin, the data obtained by subjecting 1 μl of the extract to gas chromatography equipped with a hydrogen flame ionization detector is calibrated at 8 points where the triacetin concentration is in the range of 0.020 mg / ml to 5.000 mg / ml. The results were obtained by extrapolating to the calibration curve obtained in the same manner with the standard solution for wire. A series of measurements consisting of weighing and quantification were repeated 2 to 3 times, and the calculated results were averaged to obtain the triacetin content.

<Menthol content>
The content of menthol in the filter segment was calculated by using the continuous filter segment containing capsules as a sample and the amount of menthol contained in the continuous filter segment as an absolute amount. The mass of menthol was quantified by gas chromatography (manufactured by Shimadzu Corporation). The menthol extract used for quantification was obtained by immersing the sample in 40 ml ethanol (special grade) containing 5 mg / ml anethole as an internal standard and shaking at 200 ± 10 reciprocating / min for 20 minutes. The menthol quantification is based on the data obtained by subjecting 1 μl of the extract to gas chromatography equipped with a hydrogen flame ionization detector (FID), and the menthol concentration is in the range of 0.094 mg / ml to 3.000 mg / ml6. It was extrapolated to the calibration curve obtained with the standard solution for the calibration curve of points. A series of measurements consisting of weighing and quantification were repeated 5 times, and the calculated results were averaged to obtain the menthol content.

(Evaluation of misalignment of destructive capsules)
Using a pinch tester, the destructive capsules contained in the filter segment located at the end of the continuous filter segment (hereinafter, also referred to as the terminal filter segment) were evaluated for remarkable misalignment. Specifically, as shown in FIG. 14, a terminal filter segment 142 having an axial length of 15 mm and a second-position filter segment 141 having an axial length of 15 mm adjacent to the terminal filter segment 142. The boundary portion of the above was pressed by using the sandwiching member 143 of the sandwiching tester to perform pinching. After the pinching was completed, the continuous filter segment was moved 1 mm in the feeding direction 144, the pinched portion was moved 1 mm to the terminal side, and then the step of performing the pinching again was repeated 11 times.

The stress (Rebound Stress) from the terminal filter segment 142 was measured from the strain generated in the sandwiching member 143. Further, when the destructive capsule 140 of the terminal filter segment 142 moved by 3.0 mm or more after the test was completed, it was evaluated as a remarkable misalignment. These evaluations were performed on 30 continuous filter segments to calculate the significant misalignment rate, maximum stress position, maximum stress, and average stress when the center position of the destructive capsule 140 at the start of the test was 0 mm. did. The results are shown in Table 2.

[Example 2]
A continuous filter segment was prepared in the same manner as in Example 1 except that the addition of the second plasticizer was carried out with the goal of achieving a content of the second plasticizer in the fiber of 9% by mass, and each physical property and physical properties were prepared. A misalignment evaluation was performed. The results are shown in Tables 1 and 2.

[Example 3]
A continuous filter segment was prepared in the same manner as in Example 2 except that the first plasticizer was not added, and each physical property and misalignment were evaluated. The results are shown in Tables 1 and 2.

[Example 4]
A continuous filter segment was prepared again in the same manner as in Example 3, and each physical property and misalignment were evaluated. The results are shown in Tables 1 and 2.

[Comparative Example 1]
A continuous filter segment was prepared in the same manner as in Example 1 except that menthol and the first plasticizer were not added, and each physical property and misalignment were evaluated. The results are shown in Tables 1 and 2.

[Comparative Example 2]
A continuous filter segment was prepared in the same manner as in Example 2 except that the menthol and the first plasticizer were not added, and each physical property and misalignment were evaluated. The results are shown in Tables 1 and 2.

[Comparative Example 3]
A continuous filter segment was prepared again in the same manner as in Comparative Example 2, and each physical property and misalignment were evaluated. The results are shown in Tables 1 and 2.

As shown in Table 2, in the terminal filter segments of Examples 1 to 4 to which menthol was added, the positions of the destructive capsules were more prominent than those of the terminal filter segments of Comparative Examples 1 to 3 to which menthol was not added. The deviation rate was low. That is, in Examples 1 to 4, the misalignment of the destructive capsule was suppressed even when an external force was applied.

Further, in Examples 1 to 4, the maximum stress was measured at the position on the destructive capsule side of the test start position (-7.5 mm), whereas in Comparative Examples 1 and 2, the maximum stress was measured at the test start position. It was measured. In Examples 1 to 4, since the movement of the destructive capsule was suppressed, the stress gradually increased from the test start position, decreased after reaching the maximum stress, and the destructive capsule was crushed in the reduced pinching rotation. On the other hand, in Comparative Examples 1 and 2, since the destructive capsule moved at each pinching, the stress gradually decreased from the test start position, and the destructive capsule was not crushed even when the pinching was performed.

Further, in Examples 1 to 4, the value of the maximum stress was significantly larger than the value of the average stress, whereas in Comparative Examples 1 to 3, the value of the average stress and the value of the maximum stress were the same. In Examples 1 to 4, since the movement of the destructive capsule was suppressed, the stress was large before the destructive capsule was crushed, and the maximum stress value was significantly larger than the average stress value. On the other hand, in Comparative Examples 1 to 3, since the destructive capsule moved at each pinching, the stress gradually decreased from the test start position, but there was no significant change, and the average stress value and the maximum stress value were almost the same.

Further, in Examples 1 and 2 to which the first plasticizer was added, the effect of further reducing the misalignment of the destructive capsule was recognized as compared with Examples 3 and 4 to which the first plasticizer was not added. rice field. In addition, the maximum stress was measured at a position closer to the destructive capsule than the test start position (-7.5 mm), and the maximum stress value was larger than the average stress value. Therefore, the synergistic effect of the addition of menthol and the addition of the first plasticizer was recognized.

10 Filter segment 11 Filter 12 Destructive capsule

Claims (26)

1. With filters containing fiber and menthol,
   The destructive capsule embedded in the filter and
   Filter segment for tobacco products, including.
2. The filter segment according to claim 1, which has a first cured structure covering the destructive capsule, which is formed by fusing the fibers located in the vicinity of the destructive capsule with a plasticizer.
3. The filter segment according to claim 1 or 2, which has a second cured structure in which the fibers located in the vicinity of the central axis of the filter segment are fused with a plasticizer.
4. The filter segment according to any one of claims 1 to 3, wherein the destructive capsule and the fiber are fused with a plasticizer.
5. The filter segment according to any one of claims 1 to 4, wherein the fiber extends substantially parallel to the axial direction of the filter segment.
6. The plasticizers are triethyl citrate, acetyltriethyl citrate, dibutyl phthalate, diallyl phthalate, diethyl phthalate, dimethyl phthalate, di-2-methoxyethyl phthalate, dibutyl tartrate, ethyl ortho-benzoylbenzoate, ethyl phthalyl. At least one selected from the group consisting of ethyl glycolate, methylphthalyl ethyl glycolate, N-ethyltoluenesulfoamide, triacetin, ortho-cresyl para-toluenesulfonate, triethyl phosphate, triphenyl phosphate, and tripropionin. The filter segment according to any one of claims 1 to 5, which is a compound.
7. The filter segment according to claim 6, wherein the plasticizer is triacetin.
8. Claimed that the surface of the destructive capsule is composed of at least one compound selected from the group consisting of starch, dextrin, polysaccharides, agar, gellan gum, gelatin, natural gelling agents, glycerin, sorbitol, and calcium chloride. The filter segment according to any one of 1 to 7.
9. The filter segment according to any one of claims 1 to 8, wherein the fiber is a cellulose acetate fiber.
10. The filter segment according to any one of claims 1 to 9, wherein the content of menthol with respect to the filter in the entire filter segment is 1.0 to 20.0% by mass.
11. The filter segment according to any one of claims 1 to 10, wherein the content of the plasticizer with respect to the filter in the entire filter segment is 5 to 15% by mass.
12. The filter segment according to any one of claims 1 to 11, wherein the length of the filter segment in the axial direction is 5 to 15 mm.
13. The filter segment according to any one of claims 1 to 12, wherein the destructive capsule is located on the central axis of the filter segment.
14. The filter segment according to any one of claims 1 to 13, wherein the destructive capsule is substantially spherical.
15. The filter segment according to claim 14, wherein the destructive capsule has a diameter of 1.0 to 3.5 mm.
16. In the axial direction of the filter segment, the content of the plasticizer (% by mass) in the section having a width of 5 mm including the destructive capsule as the center is the content of the plasticizer (% by mass) in the section adjacent to the section. The filter segment according to claim 15, which is 1.05 times or more.
17. The filter segment is columnar and
    The content (% by mass) of the plasticizer in the columnar region centered on the central axis of the filter segment and having a length of 75% of the diameter of the filter segment is outside the columnar region. The filter segment according to any one of claims 1 to 16, which is higher than the content (% by mass) of the plasticizer in the filter segment.
18. 17. The filter according to claim 17, wherein the content of the plasticizer in the columnar region is 5 to 20% by mass, and the content of the plasticizer in the filter segment outside the region is 3 to 8% by mass. segment.
19. The filter segment according to claim 3, wherein the second cured structure extends from the central axis of the filter segment to the peripheral edge of the filter segment.
20. The filter segment is columnar and
    A columnar region centered on the central axis of the filter segment and having a diameter of 75% of the diameter of the filter segment, and a central angle extending radially from the central axis to the peripheral edge of the filter segment are 30 to 30 to. The content of the plasticizer (% by mass) inside the 90 ° fan-columnar region is higher than the content (% by mass) of the plasticizer in the filter segment outside the columnar region and the fan-columnar region. The filter segment according to claim 19, which is also high.
21. The content of the plasticizer in the columnar region and the fan columnar region is 5 to 20% by mass, and the plasticizer in the filter segment outside the columnar region and the fan columnar region. The filter segment according to claim 20, wherein the content is 3 to 8% by mass.
22. A tobacco product containing a tobacco-containing segment and the filter segment according to any one of claims 1 to 21.
23. The tobacco product according to claim 22, which comprises at least one second filter segment between the tobacco-containing segment and the filter segment.
24. The tobacco product according to claim 22 or 23, wherein the tobacco product is a cigarette.
25. The tobacco product according to claim 22 or 23, wherein the tobacco product is a non-combustion heated tobacco product.
26. The tobacco product according to claim 25, wherein the tobacco-containing segment comprises a tobacco, an aerosol-producing base material, and the like.

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