WO2013187245A1

WO2013187245A1 - Cigarette

Info

Publication number: WO2013187245A1
Application number: PCT/JP2013/065105
Authority: WO
Inventors: 哲也本溜; 石川　悦朗
Original assignee: 日本たばこ産業株式会社
Priority date: 2012-06-11
Filing date: 2013-05-30
Publication date: 2013-12-19
Also published as: TW201402025A; JP2015156806A

Abstract

This cigarette includes: a tobacco rod that contains tobacco filling material and wrapping paper wrapped around the tobacco filling material; a filter that includes a filter plug that includes filter material, filter packaging paper wound around the filter plug, and a capsule that is positioned within the filter, covers the contents with a membrane, and holds the same; and tipping paper wrapped on the tobacco rod and the filter so as to make the tobacco rod and the filter continuous. At least one paper of the filter packaging paper and the tipping paper has a density of 0.5 - 1.0 g/cm³ and a thickness of 100 - 250 µm.

Description

cigarette

This invention relates to the cigarette which improved the ease of crushing of the capsule contained in a filter.

Conventionally, a fragrance capsule is incorporated into a cigarette filter, the fragrance capsule is crushed with a finger during use, and the scent of the contents liquid is enjoyed during smoking, and the smell of the butt after being extinguished is masked ( Patent Documents 1 and 2). The details of the fragrance capsule are described in Patent Document 3, for example.

The perfume capsule is directly embedded in the filter medium constituting the filter, or is disposed in a hollow portion formed between a plurality of filter plugs (see FIGS. 1A and 1B). In any case, since the fragrance capsule is located in the filter, it is crushed by pressing with a finger on the paper (winding paper or molding paper) and chip paper on which the filter is packaged.

Japanese Patent Laid-Open No. 7-250665 Special table 2007-520204 Special table 2008-546400 gazette

The present inventors have focused on improving the ease of crushing of capsules contained in a filter, and the present invention provides a cigarette with improved ease of crushing of capsules contained in a filter. For the purpose.

The present inventors, when crushing a capsule with a finger from a paper having both a specific density and a specific thickness, can crush the capsule with a small force, and the pressure on the finger is difficult to concentrate locally, The present inventors have found that it can be dispersed on a wider contact surface and have completed the present invention.

According to the present invention,
A tobacco rod including a tobacco filler and a wrapping paper wound around the tobacco filler;
A filter including a filter plug including a filter medium, a filter wrapping paper wound around the filter plug, and a capsule located in the filter and encapsulating and holding the contents with a film;
Including the tobacco rod and chip paper wound on the filter so as to connect the tobacco rod and the filter;
A cigarette is provided in which at least one of the filter wrapping paper and the chip paper has a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm.

According to the cigarette of the present invention, the capsule can be crushed with a small force and a short pushing distance. Moreover, since the cigarette of this invention can disperse | distribute the pressure concerning a finger to a wider contact surface when crushing a capsule, it has the advantage that the burden concerning a finger is small.

Sectional drawing which shows the cigarette which concerns on the 1st aspect of this invention. Sectional drawing which shows the cigarette which concerns on the 2nd aspect of this invention. The disassembled perspective view which shows the cigarette which concerns on the 1st aspect of this invention. The figure which shows typically the measuring system using a rheometer. The graph which shows the relationship between the indentation distance of a capsule, and a load (Example 1). The figure (example 1) which shows typically the mode of the test paper when the same load is applied. The graph which shows the relationship between the thickness of paper and the ease of transmission of the force to a capsule (example 1). The figure which shows the pressure distribution added to the test paper (Example 2). The figure which shows the mode of the test paper when the same load is applied (example 2). The figure which shows the size of a capsule containing filter (Example 3). The figure which shows a mode that a capsule containing filter and a capsule are pressurized (Example 3). The graph which shows the relationship between the indentation distance of a capsule containing filter and a capsule, and a load (Example 3). The graph which shows the relationship between the indentation distance of the capsule containing filter of Example 3 and Example 4, and a load.

Hereinafter, the present invention will be described, but the following description is intended to explain the present invention in detail and is not intended to limit the present invention.

In the cigarette of the present invention, the capsule may be disposed in a hollow portion formed between a plurality of filter plugs (first aspect), or may be directly embedded in a filter medium constituting the filter (first). Second embodiment).

The cigarette according to the first aspect of the present invention is as shown in FIG.
A tobacco rod (11) including a tobacco filler (11a) and a wrapping paper (11b) wound around the tobacco filler;
Two filter plugs (12a) spaced apart from each other through a hollow portion, filter wrapping paper (12b) wound around the filter plug so as to form a hollow portion between the filter plugs, A filter (12) including a capsule (12c) located in the hollow portion and covering and holding the contents with a film;
Including the tobacco rod and chip paper (13) wound on the filter so as to connect the tobacco rod and the filter;
At least one of the filter wrapping paper and the chip paper has a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm. In FIG. 1A, the filter plug (12a) is wound by the plug web (12d), but the plug web (12d) may or may not be present. FIG. 2 shows a state in which the cigarette according to the first aspect of the present invention is disassembled. In FIG. 2, two filter plugs (12a) are arranged apart from each other, and a filter wrapping paper (12b) and a chip paper (13) are wound around them, so that a hollow portion is formed between the filter plugs (12a). It shows that it is formed and the capsule (12c) is located in such a hollow part.

The cigarette according to the second aspect of the present invention is as shown in FIG.
A tobacco rod (11) including a tobacco filler (11a) and a wrapping paper (11b) wound around the tobacco filler;
A filter plug (12a), a filter wrapping paper (12b) wound around the filter plug, and a capsule (12c) which is located embedded in the filter plug and which covers and holds the contents with a film. A filter (12) comprising:
Including the tobacco rod and chip paper (13) wound on the filter so as to connect the tobacco rod and the filter;
At least one of the filter wrapping paper and the chip paper has a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm.

The following description is about the above two aspects unless otherwise specified.

In the present invention, if at least one of the filter wrapping paper and the chip paper has a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm, the properties of the paper cause the capsules. The ease of crushing can be improved.

Paper having a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm has a higher density and thickness compared to the paper generally used for filter wrapping paper and chip paper. High capsule crushing performance due to thickness. Therefore, the characteristic paper used in the present invention, that is, paper having a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm is also referred to as “the high performance paper of the present invention”.

In this specification, the density of paper is measured by the methods specified in JIS P 8124 and JIS P 8118, respectively. It refers to the value determined by fitting: Formula: Density (g / cm ³ ) = Basis weight (g / m ² ) / Thickness (mm) × 1000. Moreover, in this specification, the thickness of paper refers to the value measured by the method prescribed | regulated to JISP8118.

In the present invention, when the high performance paper of the present invention is used as the filter wrapping paper, the same high performance paper may be used as the chip paper, and it has a normal density and thickness generally used as chip paper. Paper may be used. Similarly, when the high-performance paper of the present invention is used as the chip paper, the filter wrapping paper may use the same high-performance paper, and has a normal density and thickness generally used as filter wrapping paper. Paper may be used.

In the present invention, at least one of filter wrapping paper and chip paper has a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 to 250 μm, preferably 0.7 to 1.0 g. Having a density of / cm ³ and a thickness of 180 to 250 μm, more preferably a density of 0.8 to 1.0 g / cm ³ and a thickness of 240 to 250 μm.

When using thick paper, for example, paper having a thickness of 240 to 250 μm, it is preferable to perform ruled line processing on the paper in order to facilitate the winding process of cigarette manufacture. The ruled paper is arranged so that the ruled line is parallel to the longitudinal direction of the cigarette. Further, the ruled paper is preferably arranged so that the ruled surface faces inward in the cigarette. The ruled line processing can be performed by putting ruled lines (folded lines) on the surface of the paper at regular intervals by a ruled line machine. The ruled line processing is preferably performed at a depth of 60 to 90% of the paper thickness and at intervals of 2 mm or less.

Even if the thickness of the paper is in the range of 100 to 250 μm, if the density is less than 0.5 g / cm ³ , the paper tends to deform and break when the capsule is crushed, and the pressure on the finger is concentrated locally. Therefore, it becomes difficult to crush the capsule. On the other hand, if the density is greater than 1.0 g / cm ³ , the paper production cost increases, which is not preferable. The density of the paper is desirably large in the range of 0.5 to 1.0 g / cm ³ in order to prevent leakage of the capsule contents (for example, leakage of the capsule contents liquid).

Even if the density of the paper is within the range of 0.5 to 1.0 g / cm ³ , if the thickness is smaller than 100 μm, the paper is easily deformed and broken when the capsule is crushed, and the pressure on the finger is locally Because it concentrates on the capsule, it becomes difficult to crush the capsule. On the other hand, when the thickness is larger than 250 μm, it is difficult to perform a winding process for manufacturing cigarettes, and it becomes difficult to obtain a feeling of breaking the capsule.

The filter wrapping paper (12b in FIG. 1A) in the first embodiment is also called a molded paper. When the high-performance paper of the present invention is adopted as the molded paper, the basis weight is generally 50 to 250 g / m ² , and the air permeability Can be between 0 and 30000 CU. In the first aspect, since the capsule is located in the hollow portion of the filter, it is particularly preferable to set the air permeability of the filter wrapping paper to 0 for the purpose of preventing the liquid in the capsule from oozing out of the cigarette. The filter wrapping paper (12b in FIG. 1B) in the second embodiment is also called a web, and similarly, when the high-performance paper of the present invention is adopted for the web, the basis weight is 50 to 250 g / m ² and the air permeability is It can be 0 to 30000 CU. Also in the second embodiment, the air permeability of the filter wrapping paper can be set to 0 for the same purpose as described above. When the high-performance paper of the present invention is used as a forming paper or a web, the chip paper can be a paper having a normal density and thickness generally used as a chip paper. For example, the basis weight is 20 to 60 g / m ² and thickness can be 20 to 60 μm.

In the embodiment of the present invention, as described above, the capsule is accommodated in the hollow portion between the filter plugs or embedded in the filter plug. One capsule may be present in the filter, or a plurality (for example, 2 to 10) of capsules may be present. When the capsule is accommodated in the hollow part, one capsule may be accommodated per one hollow part, or a plurality of (for example, 2 to 10) capsules may be accommodated.

Capsule is composed of film and contents.

For the film, for example, starch, dextrin, polysaccharides, agar, gellan gum, gelatin, various natural gelling agents, glycerin, sorbitol, calcium chloride, and the like can be used, and flavors and coloring agents can be further included. The capsule is preferably colored so that a smoker can recognize it when crushing the capsule even if it is surrounded by filter wrapping paper or chip paper having opacity, and a colorant such as Blue No. 1 is applied to the film. It is preferable to include.

As the contents of the capsule, any substance can be used, and the shape thereof can be any shape such as solid, liquid, and gas. For example, a solid adsorbent such as activated carbon or a solid fragrance can be used as the contents. Alternatively, any liquid can be used as the contents, for example, a liquid containing a fragrance can be used. Specifically, a liquid containing any fragrance used in smoking articles such as menthol and plant essential oil can be used. A cigarette containing such a fragrance-containing capsule in a filter can enjoy the fragrance by crushing the fragrance-containing capsule during smoking. Alternatively, water can be used as the contents. A cigarette including such a water-containing capsule in a filter can be smoked by pulverizing the water capsule during smoking and passing smoke through the water like a cigarette. Alternatively, a gas fragrance can be used as the contents.

The main flavors used in the contents include menthol, leaf tobacco extract, natural plant flavors (for example, cinnamon, sage, herbs, chamomile, kuzuka, sweet tea, clove, lavender, cardamom, clove, nutmeg, bergamot, Geranium, honey essence, rose oil, lemon, orange, cinnamon, caraway, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, ylang ylang, fennel, anise , Licorice, St. John's bread, plum extract, peach extract, etc.), saccharides (eg, glucose, fructose, isomerized sugar, caramel, etc.), cocoa (powder, extract, etc.), esters (eg, isoamyl acetate, Linalyl acid, isoamyl propionate, linalyl butyrate, etc.), ketones (eg, menthone, ionone, damacenone, ethylmaltol, etc.), alcohols (eg, geraniol, linalool, anethole, eugenol, etc.), aldehydes (eg, vanillin, Benzaldehyde, anisaldehyde, etc.), lactones (eg, γ-undecalactone, γ-nonalactone, etc.), animal perfumes (eg, musk, ambergris, civet, castrium, etc.), hydrocarbons (eg, limonene, pinene) Etc.). These fragrances may be used alone or in combination.

When the content is a liquid containing a fragrance, a solvent suitable for the fragrance can be used as the solvent, and medium chain fatty acid triglyceride (MCT) (specifically, tricapryl / glyceryl caprate), propylene glycol Water, ethanol, etc. can be used. The liquid containing a fragrance may further contain other additives such as other solvents, pigments, emulsifiers and thickeners.

The method for producing the capsule is not particularly limited. For example, if a dropping method is used, a capsule having a seamless film can be produced. In this method, by using a double nozzle and simultaneously discharging the contents from the inner nozzle and the liquid film substance from the outer nozzle, the film liquid can wrap the contents without having a seam.

The capsule can have, for example, a spherical or cylindrical shape, where the sphere includes both a sphere having a substantially circular cross section and an ellipsoid having a elliptical cross section. The capsule preferably has a spherical shape with a substantially circular cross section. In the case of a sphere having a substantially circular cross section, the capsule can have a diameter of 1.0 to 8.0 mm, for example, and in the case of an ellipsoid, the capsule has a maximum diameter of 1.0 to 7.0 mm and a minimum diameter of 1.0 to In the case of a cylindrical body, the diameter of the circle may be 1.0 to 7.0 mm and the height may be 1.0 to 7.0 mm. From Example 3 to be described later, if the capsule size is too small, the pushing distance at the time of capsule crushing becomes longer. Therefore, in the case of a sphere, the diameter is more preferably 3.0 mm or more, and in the case of an ellipsoid, the minimum diameter is Is more preferably 3.0 mm or more, and in the case of a cylindrical body, the diameter of the circle is more preferably 3.0 mm or more.

Further, it is preferable that the capsule itself can be broken at a strength of about 10 to 35 [N]. When the high-performance paper of the present invention is used, relatively hard capsules such as capsules that can be broken at a strength higher than about 25 [N] and lower than about 30 [N] can be crushed with a small force and a short indentation distance. Is possible. Harder capsules have the advantage that the encapsulated cigarettes are less likely to break when exposed to high temperatures or when transported.

As demonstrated in the examples described later, when a capsule that can be broken at a strength of about 30 [N] is crushed directly with a finger or is crushed from the top of an existing paper (50NFB), local acupressure is applied. Although it feels, when it crushes from on the high performance paper of this invention, it is possible to crush a capsule easily, without feeling local finger pressure.

In the embodiment of the present invention, the filter plug can be composed of a filter medium of acetate tow, like a normal cigarette with a filter. The filter plug may be composed only of the filter medium, or may be composed of the filter medium and a plug web wound around the filter medium. When the filter includes a plurality of filter plugs, the cut-side filter plug and the suction-side filter plug may have the same material and structure, or may have different materials and structures.

Acetate tow has, for example, a single yarn fineness of 1.9 to 8.6 (g / 9000m), a total fineness of 17000 to 44000 (g / 9000m), a number of fibers of 2400 to 23500 (piece), and a ventilation resistance of 100 to 600 (mmH2O / 120mm). A plasticizer such as triacetin may be added to acetate tow, and the plasticizer can be added in an amount of 6 to 10% by weight based on the weight of acetate tow. When activated carbon is added to acetate tow, The plasticizer can be added in an amount of 2 to 20% by weight based on the weight of acetate tow.

From Example 4 to be described later, if the filter medium is too hard, the repulsive force by the filter plug when the capsule-containing filter is crushed with a finger increases, so the single yarn fineness is more than 3.0 (g / 9000m). The total fineness is preferably 35000 (g / 9000 m) or less.

The filter has a circumference of, for example, about 14 to 26 mm, and the length can be, for example, 17 to 31 mm, similar to a normal filter. In the filter of the first aspect, the length of the hollow portion may be not less than the size of the capsule, for example, 3 to 7 mm, and the length of each filter plug may be 5 to 20 mm.

In the cigarette of FIG. 1A, two filter plugs are arranged through one hollow portion, but n (n is an integer of 2 or more) filter plugs are arranged through (n−1) hollow portions. For example, n is 2 to 4, preferably n is 2 to 3, and more preferably n is 2.

In the cigarette of FIG. 1B, the filter is composed of a single filter plug, but according to the known art, a plurality of filter plugs, eg 2-4, preferably 2-3, more preferably 2 filters. Plugs may be connected. When a plurality of filter plugs are connected, capsules may be embedded in all filter plugs, or capsules may be embedded in some filter plugs.

In the embodiment of the present invention, the cigarette rod is composed of a cigarette filler and cigarette paper wound around the cigarette filler, like a normal cigarette, and has, for example, a circumference of about 14 to 26 mm and a length of 53 to 67 mm. Can do.

Example 1: Effect of paper thickness and density on indentation distance when crushing capsules In this example, the following six types of test papers were used (the parentheses are the source of each test paper). The characteristics of each test paper are shown in Table 1 below. Each test paper was 2 cm square and used for the experiment.

(1) 50NFB (Nippon Paper Papillia Co., Ltd.)
(2) HS (Shinyodogawa Paper Co., Ltd.)
(3) AT (Shinyodogawa Paper Co., Ltd.)
(4) HS120 (Shinyodogawa Paper Co., Ltd.)
(5) S80 (Nippon Paper Papillia Co., Ltd.)
(6) Resistance paper (Nippon Paper Papillia Co., Ltd.)

Test paper 50NFB is a molded paper currently used in capsule-containing cigarettes. In Table 1, “breaking strength” represents the load [N] applied to the capsule when the capsule is broken, and “movement distance” represents the pushing distance [mm] when the capsule is broken.

The capsule was prepared by mixing the film substance (15% by weight) and the content liquid (85% by weight), and dropping. The main components of the coating substance and the content liquid constituting the capsule were as follows.
(I) Coating material Gelatin, gellan gum, starch, glycerin, and sorbitol (ii) Contents liquid Medium chain fatty acid triglyceride (tricapryl / glycol caprate) (83 wt%)
The prepared capsule was a sphere having a diameter of about 4.5 mm. Moreover, the hardness of the capsule was about 30N. In this example, the content liquid of the capsule is composed only of a solvent and does not contain a fragrance, but it has been demonstrated that the presence or absence of the fragrance does not affect the ease of crushing the capsule.

Using the measurement system shown in FIG. 3A, the relationship between the indentation distance and the load when the capsule was crushed was examined. That is, a capsule was placed on a test paper placed on an elastic rubber, and the capsule was crushed by applying pressure from above with a pressure sensitive shaft of a rheometer. The capsules were crushed under the conditions of 60% humidity and a temperature of 22 degrees. The indentation distance (mm) (also referred to as the movement distance) and the load (N) at that time were measured. The measurement was performed using a Sun RHEO METER CR3000EX (Sun Science Co., Ltd.).

The measurement results are shown in FIG. 3B. 3B, (1) is 50NFB, (2) is HS, (3) is AT, (4) is HS120, (5) is S80, and (6) is resistance paper.

3B shows that HS, AT, HS120, and S80 have a smaller pushing distance (movement distance) required to reach the same load than test paper 50NFB. On the other hand, the resistance paper has a larger pressing distance (movement distance) necessary to reach the same load than 50 NFB. FIG. 3C schematically shows this state, that is, the state when the same load is applied to 50 NFB, resistance paper, and S80. In FIG. 3C, the arrow extending from the test paper schematically represents the state of pressure that will be applied to the finger when the capsule is crushed with the finger. FIG. 3C shows that when a paper having a predetermined density and thickness, such as S80, is used, the same load can be applied to the capsule with a smaller pressing distance, and the paper is not easily broken when the load is applied. It shows that the pressure at the time of crushing can be disperse | distributed to a wider contact surface. On the other hand, FIG. 3C shows that when a low density paper (resistance paper) or a low thickness paper (50NFB) is used, the pressing distance required to give a predetermined load is large, and the paper is not loaded when a load is applied. Because it is easy to break, it shows that the pressure when crushing the capsule tends to concentrate on one point.

Based on these results, the relationship between the thickness of the paper and the ease of transmission of force to the capsule is shown in FIG. 3D. In FIG. 3D, the horizontal axis indicates the paper thickness [μm], and the vertical axis indicates the breaking strength [N] / movement distance [mm]. Here, “breaking strength” means a load [N] applied to the capsule when the capsule is broken, and “movement distance” means a pushing distance [mm] when the capsule is broken. A large breaking strength [N] / moving distance [mm] means that a large load can be applied to the capsule with a small pushing distance, that is, a force can be easily transmitted to the capsule with a small pushing distance. In FIG. 3D, (1) represents 50NFB, (2) represents HS, (3) represents AT, (4) represents HS120, (5) represents S80, and (6) represents resistance paper. In addition, the graph of FIG. 3D prepares 20 samples for each test paper, measures the indentation distance (mm) and the load (N), and plots the average value of the obtained data. The graph of FIG. 3B shows a typical example selected from the data obtained from 20 samples.

From FIG. 3D, in the case of paper having a density of 0.5 to 1.0 g / cm ³ , that is, 50NFB, HS, AT, HS120, and S80, as the paper thickness increases, the breaking strength [N] / movement distance [ The value of [mm] increases, and it becomes easier to transmit the force to the capsule with a small pushing distance. However, when the paper thickness is about 250 μm, the breaking strength [N] / movement distance [mm] reaches a peak. On the other hand, a resistance paper having a thickness of 430 μm but a density of 0.27 g / cm ³ has a small value of breaking strength [N] / movement distance [mm] and is difficult to transmit force to the capsule.

From the above results, when a paper having a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 μm or more is used, the load necessary for crushing the capsule with a smaller pushing distance is obtained. You can see that it is given. Actually, when a paper having a density of 0.5 to 1.0 g / cm ³ and a thickness of 100 μm or more is used, the pressure on the finger is small and the capsule is easily crushed with a small force. I got a feel. On the other hand, when paper having a density of less than 0.5 g / cm ³ or paper having a thickness of less than 100 μm is used, a large indentation distance is required to give a load necessary for crushing the capsule. I understand. Actually, when a paper having a density of less than 0.5 g / cm ³ or a paper having a thickness of less than 100 μm is used, the pressure applied to the finger is large and the paper is easily deformed or broken. The feeling that the capsule was difficult to break was obtained.

In addition, in this example, since the capsule prepared similarly was applied to each test paper, the maximum point of load (the load necessary for crushing the capsule) should be the same for any test paper. . Therefore, the difference in the maximum load point observed in FIG. 3B is considered to be due to a slight difference in the hardness of the capsule.

Example 2. Effect of paper thickness on pressure distribution when crushing capsules Capsule is placed on each test paper placed on elastic rubber according to the same method as in Example 1, and from above the pressure sensitive axis of rheometer The capsule was crushed under pressure. The capsules were crushed under the conditions of 60% humidity and a temperature of 22 degrees. When the capsule collapsed, the pressure distribution applied to the test paper was measured. The pressure distribution was measured using the measurement system and Inastomer (Inaba Rubber Co., Ltd.) shown in FIG. 3A. As the test paper, 50NFB and S80 used in Example 1 were used.

The measurement results are shown in FIG. 4A.

FIG. 4A shows that the pressure is higher at the center of the pressure distribution, and gradually decreases concentrically as the distance from the center increases. In FIG. 4A, the central portion (blacked portion) observed with the test paper 50NFB has the highest pressure, and then the pressure in the portion with the rough hatching is high, and then the fine hatching is applied. Part pressure is high.

The result of FIG. 4A shows that S80 has a larger pressurization area as a whole and lower pressure at the center than 50 NFB. This is because test paper S80 having a predetermined density and thickness is less likely to concentrate the pressure on the finger locally when crushing the capsule, and can be distributed over a wider contact surface. It shows that the burden on is small. FIG. 4B schematically shows this state, that is, the state when the same load is applied to the test paper. In FIG. 4B, the arrow extending from the test paper schematically represents the state of pressure that will be applied to the finger when the capsule is crushed with the finger. FIG. 4B shows that the test paper 50NFB not having the predetermined thickness is more likely to concentrate the pressure on the finger locally, is higher at the center, and the test paper S80 has a wider pressure on the finger. It is easy to disperse and shows low in the center.

In Examples 1 and 2, the experiment was conducted by directly placing the capsule on the test paper. For this reason, it is considered that the experimental results of Examples 1 and 2 directly reflect the first aspect of the present invention (the aspect in which the capsule is accommodated in the hollow portion between the filter plugs). In addition, the capsule is sufficiently harder than the filter medium constituting the filter plug. In the second aspect of the present invention (an aspect in which the capsule is embedded in the filter medium in the filter plug), the capsule indicates the hardness of the capsule when the capsule is crushed. Therefore, the experimental results of Examples 1 and 2 are considered to reflect the second aspect of the present invention (the aspect in which the capsule is embedded in the filter medium in the filter plug).

Example 3 A filter capsule in which the capsule is disposed in the hollow portion between the filter plugs was prepared according to the same method as in Example 1, and a filter in which the capsule was disposed in the hollow portion between the filter plugs was prepared. The size of the filter was as shown in FIG. 5A. The filter plugs on the suction side and the cut side were as follows.

Suction side filter plug (acetate filter wound up with web)
Single yarn fineness 2.8 (g / 9000m)
Total fineness 35000 (g / 9000m)
Number of fibers 12500 (pieces)
Ventilation resistance 360 (mmH2O / 120mm)
Engraved side filter plug (NWA: non-wrap acetate filter)
Single yarn fineness 2.5 (g / 9000m)
Total fineness 31000 (g / 9000m)
Number of fibers 12400 (pieces)
Ventilation resistance 300 (mmH2O / 120mm)
A plasticizer (triacetin) was added to each tow in an amount of 9% by weight based on the tow weight. S80 was used as a molding paper (test paper) for connecting two filter plugs.

The prepared capsule-containing filter was placed on an elastic rubber according to the same method as in Example 1, and the capsule was crushed by applying pressure from above with a pressure sensitive shaft of a rheometer (see FIG. 5B). As a comparative example, the capsule alone was placed on an elastic rubber according to the same method as in Example 1, and the capsule was crushed by applying pressure from above the pressure-sensitive axis of the rheometer (see FIG. 5B). The capsules were crushed under the conditions of 60% humidity and a temperature of 22 degrees. Each indentation distance (mm) and load (N) were measured.

The measurement results are shown in FIG. 5C.

The capsule-containing filter has a repulsive force due to the filter plug compared to the capsule alone, so it is difficult to apply a load until the test paper reaches the capsule by pressing, and after the test paper reaches the capsule by pressing (After the indentation distance exceeded about 3 mm), the load was easily applied. For this reason, in the case of the capsule alone, the capsule was crushed when a load of about 25.3 N was applied at an indentation distance of about 2.1 mm, whereas the capsule-containing filter had an indentation distance of about 4.4 mm. The capsule crushed when a load of 37.2 N was applied.

From this result, if the capsule in the filter is pressed with a finger from the top of the test paper, it will be difficult to apply a load until the test paper reaches the capsule, so the pushing distance until the test paper reaches the capsule may be shortened. It turns out that it is preferable. The pushing distance until the test paper reaches the capsule can be shortened by increasing the size of the capsule, thereby further improving the ease of crushing the capsule.

Example 4 Filter with Capsule Arranged in the Hollow Part Between Filter Plugs A capsule-containing filter was prepared in the same manner as in Example 3 except that the toe of the filter plug on the suction side and the cut side was changed as follows.

Suction side and carved side filter plugs Single yarn fineness 5.0 (g / 9000m)
Total fineness 35000 (g / 9000m)
7000 fibers
Ventilation resistance 270 (mmH2O / 120mm)
No plasticizer (triacetin) was added to the tow.

The prepared capsule-containing filter was placed on an elastic rubber according to the same method as in Example 3, the capsule was crushed, and the indentation distance (mm) and load (N) were measured. The capsules were crushed under the conditions of 60% humidity and a temperature of 22 degrees. The measurement results are shown in FIG.

In the capsule-containing filter of this example, since a soft tow was used, the repulsive force by the filter plug could be made smaller than that of the capsule-containing filter of Example 3. For this reason, the capsule-containing filter of Example 3 was crushed when a load of about 37.2 N was applied at an indentation distance of about 4.4 mm, whereas the capsule-containing filter of this example was about 4.5 mm. The capsule was crushed when a load of about 23.2 N was applied at an indentation distance of.

From this result, it can be seen that when a soft filter medium is used, the repulsive force caused by the filter plug when the capsule-containing filter is pushed with a finger is small, so that the load at the time of capsule crushing can be reduced. Thus, the ease of crushing of the capsule can be further improved by using a soft filter medium.

10. Cigarette 11 ... Tobacco rod 11a ... Tobacco filler 11b ... Tobacco wrapping paper 12 ... Filter 12a ... Filter plug 12b ... Filter wrapping paper 12c ... Capsule 12d・ Plug roll paper 13 ... chip paper

Claims

A tobacco rod including a tobacco filler and a wrapping paper wound around the tobacco filler;
A filter including a filter plug including a filter medium, a filter wrapping paper wound around the filter plug, and a capsule located in the filter and encapsulating and holding the contents with a film;
Including the tobacco rod and chip paper wound on the filter so as to connect the tobacco rod and the filter;
A cigarette wherein at least one of the filter wrapping paper and the chip paper has a density of 0.5 to 1.0 g / cm 3 and a thickness of 100 to 250 μm.
2. The cigarette according to claim 1, wherein at least one of the filter wrapping paper and the chip paper has a density of 0.7 to 1.0 g / cm 3 and a thickness of 180 to 250 μm.
3. The cigarette according to claim 2, wherein at least one of the filter wrapping paper and the chip paper has a density of 0.8 to 1.0 g / cm 3 and a thickness of 240 to 250 μm.
2. The cigarette according to claim 1, wherein at least one of the filter wrapping paper and the chip paper has a thickness of 240 to 250 μm and is processed into a ruled line.
The cigarette according to any one of claims 1 to 4, wherein the capsule has a spherical shape.
A plurality of filter plugs spaced apart from each other through a hollow portion; filter wrapping paper wound around the filter plug so as to form a hollow portion between the filter plugs; The cigarette according to any one of claims 1 to 5, wherein the cigarette is contained in a capsule and holds the content covered with a film.
The filter includes a filter plug, a filter wrapping paper wound around the filter plug, and a capsule that is embedded in the filter plug and that covers and holds the contents with a film. The cigarette according to any one of claims 1 to 5.