TWI734852B - Smoking articles with filters attached - Google Patents

Abstract

A smoking article with a filter attached, comprises: a smoking body; a filter which has a filter component disposed at the downstream end of the smoking body and a breathable paper wrapped around the outside of the filter component, and further equipped with a fragrance capsule within the filter component; and a filter paper wrapped around the outer peripheral surface of the downstream end of the smoking body and the outer peripheral surface of the filter to connect the smoking body and the filter. The fragrance capsule comprises a capsule body and a colored content liquid containing a fragrance ingredient contained in the capsule body; the breathable paper is disposed opposite to the area where the fragrance capsule is ruptured and the colored content liquid is discharged, and has an air permeability of 1000C.U. to 30000C.U.; the filter paper is impermeable to the colored content liquid and includes at least three transparent portions arranged apart from each other along the circumferential direction of the filter paper, and each of the transparent portions is disposed opposite to the area where the colored content liquid is discharged.

Description

Smoking items with filter

The invention relates to a smoking article with a filter.

Filter-attached smoking articles, such as filter-attached cigarettes, are made by connecting the tobacco rod and the filter, and using filter paper to wrap the outer peripheral surface of the downstream end of the tobacco rod and the outer peripheral surface of the filter. Its integration. The filter paper usually has the function of hiding the seam between the filter and the cigarette rod and hiding the color of the tar attached to the filter due to smoking, so opaque paper is used.

In recent years, there has been known a structure in which a fragrance capsule is arranged inside the filter of a smoking article with a filter. In this filter-attached smoking article, the smoker breaks the flavor capsule during use, so that the flavor of the content liquid of the flavor capsule can be enjoyed and the peculiar smell of the cigarette butt can be eliminated (Patent Document 1). However, if an opaque filter paper is used in a smoking article with a filter in which a fragrance capsule is arranged inside the filter, it is difficult for a smoker to visually confirm whether the contents of the fragrance capsule have been fully released after rupturing the fragrance capsule To the problem within the filter. Therefore, in order to visually confirm that the contents of the fragrance capsules have been fully released into the filter, a smoking article with a filter was studied. The contents of the fragrance capsules contain dyes and are used in a part of the opaque filter paper. A window hole that visualizes the filter.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 7-250665

However, in such smoking articles with a filter, generally speaking, after the fragrance capsule is ruptured, even if the content liquid is sufficiently released into the filter, the released content liquid will only penetrate to a part of the outer peripheral surface of the filter. Location. Specifically, as shown in Fig. 1(a), when the outer peripheral surface of the filter FL in which the fragrance capsule CP is placed is sandwiched between the index finger F1 and the thumb F2, and a force P is applied to squeeze the fragrance capsule CP to rupture, As shown in FIG. 1(b), the content liquid often penetrates only a part of the outer peripheral surface of the squeezed filter FL (area S). Therefore, even if a window hole is provided in a part of the filter paper, if the window hole does not match the position of a part of the outer peripheral surface of the filter partially saturated with the content liquid (area S), some smokers cannot visually confirm the content liquid of the fragrance capsule. Full release situation.

In order to solve the above-mentioned problems, the present invention provides a smoking article with a filter. In the smoking article with a filter in which the flavor capsule is arranged inside the filter, the smoker can visually confirm the flavor of the flavor capsule after rupturing the flavor capsule The colored content liquid has been fully released.

According to an embodiment of the present invention, there can be provided a smoking article with a filter, comprising: a smoking body; a filter having a filter member arranged at the downstream end of the smoking body, and wound around the filter member The air-permeable paper on the outer side, and the fragrance capsule is also arranged inside; and the filter paper, which is wound on the outer peripheral surface of the downstream end of the smoking body and the outer peripheral surface of the filter to connect the smoking body and the filter The fragrance capsule includes: a capsule body and a colored content liquid held in the capsule body and containing fragrance ingredients; the breathable paper is arranged to face the area where the fragrance capsule is ruptured and the colored content liquid is released, and It has an air permeability of 1000 C.U. to 30000 C.U.; the filter paper is impermeable to the colored content liquid, and is provided with at least three transparent parts that are separated from each other along the circumferential direction of the filter paper, Each of the transparent portions is arranged to face the area where the colored content liquid is released.

Here, smoking articles include cigarettes, cigars, carbon heat source heating type smoking articles, electric heating type non-combustion smoking articles, and the like.

According to another embodiment of the present invention, there can be provided a smoking article with a filter, comprising: a smoking main body; a filter having a filter member arranged at the downstream end of the smoking main body; The outer breathable paper, and the transparent plug wrapper wound on the outer side of the aforementioned breathable paper, and the fragrance capsule is arranged inside; and the filter paper, wound around the downstream end of the aforementioned smoking body The outer peripheral surface and the outer peripheral surface of the filter connect the smoking body and the filter; the fragrance capsule includes: a capsule main body, and a colored liquid contained in the capsule main body and containing fragrance ingredients; the breathable paper arrangement It is opposite to the area where the colored content liquid is released when the fragrance capsule is broken, and has an air permeability of 1000 C.U. to 30000 C.U.; the transparent paper is impermeable to the colored content liquid, and at least part of it Having a transparent portion; the filter paper is provided with at least three openings arranged apart from each other along the circumferential direction of the filter paper, and each of the openings is arranged to face the area where the colored content liquid is released.

1 to 8‧‧‧Smoking items with filter

11‧‧‧Smoking body (pipe)

111‧‧‧Tobacco

112‧‧‧Cigarette Paper

12, 22, 32, 42, 52, 62, 72, 82‧‧‧Filter

13, 23, 33, 43, 53, 63, 73, 83‧‧‧Filter tip paper

13a, 33a, 53a, 73a‧‧‧Transparency

13b, 23b, 33b, 43b, 53b, 63b, 73b, 83b‧‧‧Opaque part

15, 75‧‧‧Spice capsules

54‧‧‧Hollow part (cavity)

23a, 43a, 63a, 83a‧‧‧Opening part

32a, 52a, 72a‧‧‧First filter assembly

32b, 52b‧‧‧Second filter assembly

121, 321a, 321b, 521a, 521b‧‧‧Filter components

122‧‧‧Filter take-up sheet

322a, 522a, 722a‧‧‧The first filter take-up sheet

151, 751‧‧‧Capsule body

152、752‧‧‧Colored content liquid

223, 322b, 522b‧‧‧Second filter take-up sheet

323, 423, 523, 723, 823‧‧‧Third filter take-up sheet

624‧‧‧4th filter take-up sheet

CP‧‧‧Spice Capsules

P‧‧‧Power

F1‧‧‧Index Finger

F2‧‧‧Thumb

FL‧‧‧Filter

FL1, FL2, FL3‧‧‧Test sample

S‧‧‧area

S1, S2, S3‧‧‧Exudation area

W‧‧‧length

L‧‧‧Length

R‧‧‧center point

X‧‧‧Arrow

Fig. 1 is a schematic diagram of a state where the fragrance capsule arranged in the filter is broken.

Fig. 2 is a schematic perspective view of the smoking article with filter according to the first embodiment.

Fig. 3 is a schematic cross-sectional view showing an enlarged cross section along the line III-III in Fig. 2.

Fig. 4(a) is a schematic cross-sectional view enlargedly showing the cross section taken along the line IV-IV in Fig. 3, and Fig. 4(b) is a diagram schematically showing the arrangement of the transparent portion of Fig. 4(a).

Fig. 5 is a schematic perspective view of the smoking article with filter according to the second embodiment.

Fig. 6 is an enlarged schematic cross-sectional view showing a cross section along the line VI-VI in Fig. 5;

Fig. 7 is a schematic cross-sectional view showing an enlarged part of the smoking article with filter according to the third embodiment.

Fig. 8 is a schematic cross-sectional view showing an enlarged part of a smoking article with a filter according to the fourth embodiment.

Fig. 9 is a schematic cross-sectional view showing an enlarged part of a smoking article with a filter according to the fifth embodiment.

Fig. 10 is a schematic cross-sectional view showing an enlarged part of a smoking article with a filter according to a sixth embodiment.

Fig. 11 is a schematic cross-sectional view showing an enlarged part of a smoking article with a filter according to the seventh embodiment.

Fig. 12 is a schematic cross-sectional view showing an enlarged part of a smoking article with a filter according to the eighth embodiment.

Figure 13 (a) to (c) are schematic diagrams showing the results of test samples 1 to 3 of Test Example 1.

Figure 14 is a graph showing the relationship between the viscosity of the colored content liquid of the flavor capsule in the test sample and the distance between the bleeding area of the colored content liquid in the filter take-up sheet.

Figure 15 is a graph showing the relationship between the density of paper and the oil absorption measured by the KLEMM test method.

Hereinafter, several embodiments will be described with reference to the drawings. In each embodiment, the same symbols are attached to the same structures, and repeated descriptions are omitted. In addition, each drawing is a schematic diagram to help understand the embodiment, and its shape, size, ratio, etc. may be different from the actual situation. The terms "upstream" and "downstream" are appropriately used in this manual, and these are based on the flow direction of mainstream smoke when smoking a smoking article with a filter.

(First Embodiment)

Fig. 2 is a schematic perspective view of the filter-attached smoking article 1 according to the first embodiment. Fig. 3 is a schematic cross-sectional view showing an enlarged cross section along the line III-III in Fig. 2. Fig. 4(a) is a schematic cross-sectional view enlargedly showing the cross section taken along the line IV-IV in Fig. 3, and Fig. 4(b) is a diagram schematically showing the arrangement of the transparent portion of Fig. 4(a). The smoking article 1 with a filter includes a smoking body 11, a filter 12 and a filter paper 13.

The smoking body 11, for example, the cigarette rod 11, is composed of shredded tobacco 111 and cigarette paper 112 wrapped around the shredded tobacco 111, similar to a general cigarette. The cigarette paper 112 is, for example, paper having air permeability.

The filter 12 is arranged at the downstream end of the tobacco rod 11. The filter 12 has the same or approximately the same diameter as the tobacco rod 11. The filter 12 includes: a filter member 121 of a single structure; a filter winding sheet 122 wound along the outer circumferential surface of the filter member 121; and a fragrance capsule 15 arranged inside the filter member 121. That is, the filter 12 includes a single filter member 121 and has a so-called single filter structure.

The filter member 121 is made of, for example, acetate fiber.

The filter take-up sheet 122 is a breathable paper, and is arranged to face the area where the flavor capsule 15 is broken and the colored content liquid therein is released. The air-permeable paper is paper having an air permeability of 1000 C.U. to 30000 C.U. The air-permeable paper preferably has an air permeability of 1000 C.U. to 24000 C.U., and more preferably has an air permeability of 1000 C.U. to 10000 C.U. In addition, the air permeability in this specification is a value measured in accordance with ISO2965:2009, and shows the flow rate (cm ³ ) of ^{a gas passing through an area of 1 cm 2 per minute when the differential pressure between both sides of the paper is 1 kPa.} The so-called 1C.U. (1coresta unit) is cm ³ /(min‧cm ² ) under 1kPa.

The opacity of the breathable paper is preferably 30% or more, preferably 40% or more and 70% or less, and more preferably 50% or more and 60% or less. When the colored content liquid 152 of the fragrance capsule 15 is soaked in such a breathable paper having an opacity of 30% or more, a vivid color will appear. In addition, in this manual, opacity is measured by using a whiteness and opacity meter (manufacturer: Murakami Color Technology Research Institute, model: WMS-1) in accordance with ISO2470 and ISO2471, respectively. The so-called opacity is a value calculated based on the formula: single sheet visual reflectance coefficient (R0)/intrinsic visual reflectance coefficient (R∞)×100(%). The intrinsic visual reflectance coefficient (R∞) of this formula is the intrinsic reflectance coefficient of whiteness when measured under the spectroscopic conditions of effective wavelength 457nm and half width 44nm using a predetermined reflectance meter and light source. .

As far as the air-permeable paper is concerned, there are no special restrictions as long as it has the above-mentioned physical properties. Thickness: 48μm), paper made by NIPPON PAPER PAPYLIA CO.,LTD.: S52-7000 (basis weight: 52gsm, air permeability 7000C.U., thickness: 110μm), high air permeability made by NIPPON PAPER PAPYLIA CO.,LTD. Degree of non-woven fabric: P-10000C (basis weight: 24gsm, air permeability: 10000C.U., thickness: 60μm), P-20000C (basis weight: 26.5gsm, air permeability: 20000C.U., thickness: 75μm), P- 30000C (basis weight: 21gsm, air permeability: 30000C.U., thickness: 77μm), PW/TCF/12000-27.50×4500m (basis weight: 25gsm, air permeability: 24000C.U., thickness: 71μm), and PPW 240E2 26,50/4500 (basis weight: 21.5gsm, air permeability: 24000C.U., thickness: 70μm).

The fragrance capsule 15 is arranged inside the filter 12, for example, is buried in the center of a cross section perpendicular to the longitudinal direction of the filter member 121. The fragrance capsule 15 includes a capsule main body 151 and a colored content liquid 152 containing fragrance components held in the capsule main body 151. Here, the so-called "colored" means any color, but bright colors of red, orange, yellow, blue, and green are preferred. The fragrance capsule 15 is a rupture type fragrance capsule in which the capsule main body 151 is ruptured due to external force, and the colored content liquid 152 therein can be released. As for the material of the capsule body 151, for example, starch, dextran, polysaccharides, cold weather, gellan gum, gelatin, various resin materials (polyvinyl chloride, polyvinylidene chloride, polystyrene, styrene, etc.) can be used. -Acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, polyethylene, polypropylene, cellulose acetate, polyethylene terephthalate, polyamide, ethylene-acrylic plastic, ethylene-vinyl acetate Ester plastic, ethylene-vinyl alcohol plastic), various natural gelling agents, etc. In addition to the above-mentioned materials, the capsule body 151 may also contain fragrance ingredients, plasticizers, dyes, and the like. The shape of the flavor capsule 15 is not particularly limited, and may be spherical, cylindrical, or truncated cone shape. The flavor capsule may be, for example, a spherical shape with a diameter of 2 mm to 5 mm, or a cylindrical shape with a diameter of 5 mm to 7 mm and a length of 5 mm to 10 mm.

As for fragrance ingredients, for example, menthol, plant essential oils, etc. can be used. One form of the colored content liquid 152 contains a dye in addition to the fragrance ingredient. As for the dye in the color content liquid 152, for example, various synthetic dyes and natural dyes can be used. Specific dyes are preferably food additives such as red 3,106, beta carotene (orange), sodium copper chlorophyll (green), gardenia blue pigment, and yellow 4. The colored content liquid 152 may further contain a solvent for dissolving fragrance ingredients and dyes. As the solvent, three medium chain fatty acid glycerides (MCT) (for example, caprylic acid, tricaprylic acid), glycerin, propylene glycol, water, ethanol, etc. can be used. The colored content liquid 152 may also contain other additives such as emulsifiers and tackifiers. In addition, colored essential oils of plants can be used as fragrance ingredients. In addition, a colored solvent can be used as the solvent. In these forms, the colored content liquid 152 may not necessarily contain a dye.

In addition, when the fragrance capsule 15 is broken, the colored content liquid 152 is released and penetrates into the filter member 121 and the filter winding sheet 122 which is a breathable paper. Therefore, the colored content liquid 152 is preferably adjusted to a viscosity of 120 mPa•s or less, preferably a viscosity of 90 mPa•s or less, in order to improve the permeability to the filter member and the like.

Furthermore, considering that the colored content liquid 152 is released after the fragrance capsule 15 is broken, the colored content liquid can sufficiently penetrate into the breathable paper through the filter member 121, and the value of the amount of the colored content liquid/the cross-sectional area of the filter is 0.2 μl/mm ² or more is preferable, and 0.3 μl/mm ² or more and 0.7 μl/mm ² or less are more preferable. If the value of the amount of colored content liquid/the cross-sectional area of the filter is less than 0.2μl/mm ² , relative to the volume of the filter, the colored content liquid 152 of the fragrance capsule 15 is insufficient to penetrate the filter roll of the breathable paper. The possibility of taking slice 122 is therefore not ideal. On the other hand, if the value of the amount of colored content liquid/the cross-sectional area of the filter is 2.2 μl/mm ² or more, the amount of the colored content liquid 152 of the fragrance capsule 15 is too large relative to the volume of the filter, which may be caused by the colored content. The possibility that the liquid reaches the downstream end of the filter and adheres to the lips of the smoker is not ideal. In addition, the amount of the colored content liquid 152 of the fragrance capsule 15 is, for example, 3 μl to 100 μl. In addition, the cross-sectional area of the filter 12 is, for example, 20 mm ² to 50 mm ² .

The manufacturing method of the fragrance capsule 15 is not particularly limited, but for example, it is preferable to use a dropping method. The dropping method can manufacture the fragrance capsule 15 having the seamless capsule body 151 without seams. This dripping method uses two layers of feed nozzles, and simultaneously discharges the colored content liquid 152 and the liquid coating material from the inner and outer feed nozzles, and the colored content liquid 152 can be packaged with the capsule body 151 without seams. enter. In addition, the fragrance capsule 15 may be formed into a form in which the content liquid (without dye) is enclosed by a capsule body containing a dye, and during storage, the dye in the capsule body is dissolved and transferred to the content liquid to become a colored content liquid.

The filter paper 13 is wound around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 12 to connect the tobacco rod 11 and the filter 12. The filter paper 13 has a transparent portion 13a and an opaque portion 13b. As shown in Fig. 4(a), at least three transparent portions 13a of the filter paper 13 are arranged apart from each other along the circumferential direction of the filter paper 13. Each transparent portion 13a is arranged to face the area where the colored content liquid is released. The transparent portion 13a of the filter paper 13 is preferably arranged at a portion along the circumferential direction of the cross section perpendicular to the longitudinal direction of the filter 12. In particular, as shown in Figure 4(b), when viewed from the center point R of the cross section perpendicular to the longitudinal direction of the filter 12, the transparent portions 13a of the filter paper 13 are arranged to form adjacent transparent portions 13a. The angular interval θ is preferably 150° or less. In this way, the transparent parts 13a are arranged at an angular interval of 150° or less, and the arrangement balance of the plurality of transparent parts 13a becomes good. The angular interval θ is preferably 140° or less, more preferably 130° or less, and most preferably 120° or less. Three to eight transparent parts 13a of the filter paper 13 are arranged along the circumferential direction of the filter paper 13, preferably three to five.

In the relationship between the number of transparent portions 13a of the filter paper 13 and the arrangement of the angular intervals θ, for example, three transparent portions 13a are arranged along the circumferential direction of the filter paper 13, and the adjacent first one is connected to the When the angular interval θ1 of the second transparent portion 13a is set to 150°C, the angular intervals θ2 and θ3 between the third transparent portion 13a and the first transparent portion 13a and the second transparent portion 13a are adjacent to the sum of 210 ° (360° to 150°), the total angular interval of 210° can be arbitrarily allocated within a range of 150° or less at an angular interval θ2 relative to the first transparent portion 13a and an angular interval θ3 relative to the second transparent portion 13a And configuration. That is, the third transparent portion 13a is along the circumferential direction of the filter paper 13, at an angular interval θ2 of 60° to 150° with respect to the first transparent portion 13a, and at an angle of 60° to 150° with respect to the second transparent portion 13a. The ranges of the angular interval θ3 of 150° are respectively arranged. With this arrangement of the three transparent parts 13a, when the fragrance capsule 15 is ruptured, no matter where the pressure is placed on the circumference of the filter 12, it can be quickly seen through at least one transparent part 13a of the three transparent parts 13a. Confirm the color development of the breathable paper. In particular, when the three transparent portions 13a are arranged along the circumferential direction of the filter paper 13, they are preferably arranged at equal angular intervals, that is, at 120° angular intervals. In addition, when four or five transparent parts are arranged along the circumferential direction of the filter paper, the angular intervals of the adjacent transparent parts 13a are at equal angular intervals, that is, the angular intervals of 90° and 72° are preferably arranged. .

In the configuration in which the transparent portion 13a of the filter paper 13 is respectively arranged to face the area where the colored content liquid is released, in the structure of the smoking article 1 with filter shown in FIGS. 2 to 4, It is preferable to arrange|position the aspect which includes the part where the transparent part 13a and the fragrance capsule 15 oppose. At this time, when the fragrance capsule 15 is ruptured and the colored content liquid 152 is released, the colored portion can be easily visually confirmed through the transparent portion 13a.

As shown in Fig. 2, the transparent portion 13a of the filter paper 13 preferably has a shape having a length W along the longitudinal direction of the filter 12 longer than the length L along the circumferential direction of the filter paper 13 . At this time, even if the arrangement position of the fragrance capsule 15 is shifted from the longitudinal direction of the filter 12, and the fragrance capsule 15 is broken and the colored content liquid 152 is released, the stained part can be easily visually confirmed through the transparent portion 13a. The length L of the transparent portion 13a is preferably 1 mm to 4 mm, and the length W is preferably 2 mm to 8 mm. For example, the transparent portion 13a has a rectangular shape with a length L of 3 mm and a length W of 5 mm. When the area of the transparent portion 13a is too large, the area of the breathable paper that can be visually confirmed from the outside becomes larger, and there is a possibility that the colored content liquid of the fragrance capsule 15 cannot completely penetrate the visually confirmed area, so it is not aesthetically good. not ideal. Fig. 2 shows an example of a rectangular transparent portion 13a, but the shape of the transparent portion 13a is not limited to this, and may be, for example, characters, geometric shapes, trademarks, and the like. In addition, the lengths L and W in the case of geometric shapes and the like are close to the lengths L and W of the circumscribed figure.

The filter paper 13 can be formed by using, for example, a sheet-like substrate that is transparent as a whole, and is formed by printing an opaque ink in the area other than the transparent portion 13a by, for example, gravure printing or inkjet printing. Opaque ink can be printed on both sides of the sheet substrate, or on either side. In addition, if only the opaque ink is printed on the inner side of the sheet substrate of the filter paper 13, it is possible to prevent the opaque ink from attaching to the smoker's lips during smoking and causing uncomfortable feeling, which is preferable. In addition, if the opaque ink is printed only on the inner side of the sheet-like base material of the filter paper 13, the smoker will visually recognize the opaque portion 13b through the sheet-like base material. Therefore, compared to the case where opaque ink is printed on the outer side of the sheet-like substrate of the filter paper 13, a different visual impression can be created. The color of the opaque portion 13b is not particularly limited, and may be the same color as the filter member 121, for example. In addition, the filter paper 13 is not limited to the above-mentioned structure. For example, the transparent portion 13a may be formed by cutting a part of the sheet constituting the opaque portion 13b and attaching a transparent sheet to the part.

The filter paper 13 is impermeable to the colored content liquid 152 of the fragrance capsule 15. The filter paper 13 includes, for example, a sheet-like base material that is transparent as a whole and that is impermeable to the colored content liquid 152 of the flavor capsule 15. The sheet-like substrate is, for example, polyolefin film such as cellophane and polypropylene film, polyvinyl chloride film, or cellulose acetate film. The sheet-like substrate can also form a liquid impermeable layer by coating resin such as nitrocellulose, ethyl cellulose, polyvinyl alcohol, or polyvinyl acetate on the outer side, inner side, or both sides, or The liquid impermeable layer is formed using a substance having low affinity with the colored content liquid 152. For example, when medium chain fatty acid (MCT) is used as the main component of the solvent of the colored content liquid 152, the material of the liquid impermeable layer can be starch, modified starch, pectin, sodium alginate, gellan gum, and tamarind seed. Pectin and carrageenan are polysaccharides with relatively hydrophilic properties. Since the filter paper 13 is impermeable to the colored content liquid 152, the colored content liquid 152 can be prevented from penetrating to the outer side of the filter paper 13, and the colored content liquid 152 can be prevented from adhering to the lips or hands of the smoker. By forming the liquid-impermeable layer, it is also possible to prevent the sheet-shaped substrate from absorbing moisture and swelling when the colored content liquid penetrates into the sheet-shaped substrate, thereby affecting the quality of the cigarette.

The sheet-like base material of the filter paper 13 includes, for example, P-BD#600 (trade name), P-BD#500 (trade name), P-BD#300 manufactured by Futamura Chemical Co., Ltd. (Trade name) and other cellophane, Clarifoil (registered trademark) diacetate film manufactured by Celanese Corporation, TAF (registered trademark in Japan) polyolefin film manufactured by Mitsui Chemicals Tohcello, Inc., biaxially stretched polyolefin film of HC-OP Acrylic film, etc.

The filter paper 13 is used to bond the tobacco rod 11 and the filter 12 with a common adhesive used in the manufacture of common filter-attached smoking articles. The type of adhesive used to bond the filter paper 13 to the tobacco rod 11 and the filter 12 is not particularly limited. Vinyl acetate-based adhesives, starch, modified starch-based adhesives, etc. can be used, or used It will actually become a transparent adhesive after drying. Moreover, as long as the purpose of bonding the filter paper 13 to the cigarette rod 11 and the filter 12 can be achieved, the area where the adhesive is applied may cover the entire bonding surface, or there may be areas where the adhesive is not applied locally.

Furthermore, when the filter paper 13 is wound on the downstream end of the cigarette rod 11 and the outer peripheral surface of the filter 12, the filter paper 13 is not easily broken and can be adapted to the shape of the smoking article with the filter. In rolls, the filter paper 13 preferably has a basis weight of 20 gsm to 100 gsm, and preferably has a basis weight of 25 gsm to 50 gsm. For the same reason, the filter paper 13 preferably has a thickness of 15 μm to 80 μm, and preferably has a thickness of 18 μm to 40 μm.

Here, the function of the smoking article with filter 1 of the first embodiment will be described.

When smoking the smoking article 1 with the filter attached, the mainstream smoke from the cigarette rod 11 passes through the filter 12 and is discharged from the downstream end of the filter 12. The smoker, for example, clamps and squeezes the filter 12 with the index finger and thumb, ruptures the capsule body 15 inside the filter 12 and collapses the fragrance capsule 15 so that the colored content liquid 152 is released from the fragrance capsule 15 to the filter member 121 . Thereby, it is possible to enjoy the fragrance of the flavor components added to the mainstream tobacco from the tobacco rod 11. When the colored content liquid 152 of the fragrance capsule 15 is released to the filter member 121, the colored content liquid 152 of the fragrance capsule 15 reaches the filter winding sheet 122 made of breathable paper arranged opposite to the release area. At this time, the filter take-up sheet 122 made of air-permeable paper has a predetermined air permeability of 1000 C.U. to 300,000 C.U. Therefore, the high permeability of the capillary phenomenon allows the colored content liquid to quickly permeate and diffuse to The vast area of breathable paper. In addition, in the case of using the filter take-up sheet 122 composed of air-permeable paper having a predetermined opacity of 30% or more, when the colored content liquid 152 is saturated, the filter take-up sheet 122 will show a bright color and Can improve visual confirmation. As a result, the smoker can easily visually confirm the filter winding sheet 122 of the breathable paper that quickly develops a bright color through the transparent portion 13a of the filter paper 13 from the outside, and can quickly confirm the rupture of the fragrance capsule 15.

In addition, the filter paper 13 wound on the outer peripheral surface of the filter member 121 has at least three transparent portions 13a arranged apart from each other along the circumferential direction thereof, from the center point of the cross section perpendicular to the longitudinal direction of the filter 12 When viewing, if the transparent parts 13a are arranged such that the angular interval between the adjacent transparent parts 13a is 150° or less, when the fragrance capsule 15 is ruptured, it can pass through regardless of pressure from any position in the circumferential direction of the filter 12 At least one transparent part 13a of the three transparent parts 13a visually confirms the dyeing state of the colored content liquid 152 on the filter winding sheet 122 of the air-permeable paper. As a result, the smoker can visually confirm the broken state of the flavor capsule 15 with a higher probability.

Therefore, according to the first embodiment, it is possible to provide a smoking article with a filter, which can visually confirm the rupture of the fragrance capsule 15, and the colored content liquid 152 accompanying the rupture of the fragrance capsule is fully released into the filter 12, and the fragrance can be enjoyed. Fragrance ingredients in capsule 15.

In addition, in the first embodiment, an example of a structure in which air-permeable paper is wound around a filter member and a filter paper is wound around the air-permeable paper has been described, but it is not limited to this. The air-permeable paper only needs to be wound on the outside of the filter member, and other layers may be present between the filter member and the air-permeable paper within a range that does not hinder the function of rapid permeation and diffusion of the colored content liquid. In addition, the filter paper only needs to be wound along the outer peripheral surface of the filter, and it is possible to make other layers exist on the air-permeable paper and the air-permeable paper without hindering the visual confirmation of the penetration and diffusion of the colored content liquid through the transparent part. Between the filter paper.

In addition, in the first embodiment, an example of a structure in which a single flavor capsule is arranged inside the filter has been described, but it is not limited to this. It is also possible to arrange multiple fragrance capsules inside the filter. At this time, among the value of the amount of the colored content liquid/the cross-sectional area of the filter, the amount of the colored content liquid represents the total amount of the colored content liquid of the plurality of fragrance capsules.

In addition, smoking articles like cigarettes and their specifications are generally called cigarettes according to the length of the cigarette in the following manner. "Standard length" is generally in the range of 68mm to 75mm, such as about 68mm to about 72mm in length; "short" or "mini" is the length below 68mm, and "extended size" is generally in the range of 75mm to 91mm, such as about 79mm To a length of about 88mm; "long" or "oversized" is generally in the range of 91mm to 105mm, such as a length of about 94mm to 101mm; "overlength" is generally a length in the range of about 110mm to about 121mm. In addition, smoking articles may be individually named cigarettes according to the outer circumference of the cigarette in the following manner. "Standard outer circumference" is an outer circumference of about 23mm to 25mm, "thick" is an outer circumference of 25mm or more, "fine" is an outer circumference of about 22mm to 23mm, "fine" is an outer circumference of about 19mm to 22mm, and "superfine" is about The outer circumference of 16mm to 19mm, and "extremely thin" is the outer circumference less than about 16mm. Therefore, an oversized and ultra-thin cigarette has, for example, a length of about 83 mm and an outer circumference of about 17 mm. On the other hand, standard-peripheral, enlarged-size cigarettes, that is, cigarettes with a length of 75mm to 91mm and a periphery of 23mm to 25mm, are favored by most customers. Smoking articles of various specifications can also be manufactured into filters with different lengths. Generally speaking, short filters are used for smoking articles with a shorter length and outer circumference. Generally speaking, the filter length ranges from 15mm for smoking articles with "short" and "standard" specifications to 30mm for smoking articles with "super long" and "superfine" specifications. The length of the filter paper in the longitudinal direction of the smoking article with the filter is, for example, 3 mm to 10 mm longer than the length of the filter.

(Second Embodiment)

Fig. 5 is a schematic perspective view of the smoking article with filter 2 according to the second embodiment. Fig. 6 is an enlarged schematic cross-sectional view showing a cross section along the line VI-VI in Fig. 5; In the smoking article 2 with a filter of the second embodiment, in addition to the filter 22 on the outer surface of the first filter take-up piece 122, the second filter take-up piece 223 is further provided, and the structure of the filter paper 23 is different Otherwise, it has the same structure as the filter-attached smoking article 1 of the first embodiment.

The filter 22 further includes a second filter winding sheet 223 belonging to a transparent roll paper wound along the outer peripheral surface of the first filter winding sheet 122 belonging to a breathable paper.

The transparent roll paper 223 is impermeable to the colored content liquid 152 of the fragrance capsule 15 and has a transparent portion at least in part. The transparent roll paper 223 is, for example, transparent as a whole, and is formed of the same material as the sheet-like base material of the filter paper 13 described in the first embodiment. The fact that the transparent roll paper 223 has a transparent portion at least in a part means that the portion corresponding to the opening portion 23a described later on the filter paper 23 may be transparent. The transparent roll paper 223 that is transparent as a whole is, for example, a polyolefin film such as a cellophane, a polypropylene film, a polyvinyl chloride film, or a cellulose acetate film. The transparent roll paper 223 can also form a liquid impermeable layer by coating resin such as nitrocellulose, ethyl cellulose, polyvinyl alcohol, or polyvinyl acetate on the outer side, inner side, or both sides, or A substance having low affinity with the colored content liquid 152 is used to form the liquid impermeable layer. Since the transparent roll paper 223 is impermeable to the colored content liquid 152, the colored content liquid 152 can be prevented from oozing out to the outer peripheral surface of the transparent roll paper 223, and the colored content liquid 152 can be prevented from adhering to the lips or hands of the smoker.

The filter paper 23 is wrapped around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 22 to connect the tobacco rod 11 and the filter 22. The filter paper 23 has an opening 23a, and the opening 23a is an opaque part 23b. The opening portion 23a of the filter paper 23 is configured to have the same shape and arrangement as the transparent portion 13a of the filter paper 13 described in the first embodiment. That is, the opening portions 23a of the filter paper 23 are arranged at least three apart from each other along the circumferential direction of the filter paper 23. The opening portions 23a of the filter paper 23 are arranged so as to face the regions where the colored content liquid is discharged, respectively. When viewed from the center point of the cross section perpendicular to the longitudinal direction of the filter 22, the openings 23a of the filter paper 23 are arranged such that the angular interval of the adjacent openings 23a is 150° or less. The opening 23a of the filter paper 23 preferably has a shape having a length W along the longitudinal direction of the filter longer than a length L along the circumferential direction of the filter paper 23. The opening 23a has a rectangular shape with a length L of 3 mm and a length W of 5 mm, for example. Fig. 5 shows an example of the opening portion 23a having a rectangular shape, but the shape of the opening portion 23a is not limited to this, and may be, for example, characters, geometric shapes, trademarks, and the like. In addition, it is preferable that the opening portion 23a of the filter paper 23 occupies less than 65% of the circumference of the filter paper 23. If the ratio of the opening 23a with respect to the circumference of the filter paper 23 is too large, the strength of the filter paper 23 decreases in the portion having the opening 23a, which is not preferable.

In a form where the opening 23a of the filter paper 23 is arranged to face the area where the colored content liquid is released, the structure of the smoking article 2 with a filter shown in FIGS. 5 and 6 includes the opening The arrangement of the part where the hole 23a and the fragrance capsule 15 face each other is preferable. At this time, when the fragrance capsule 15 is ruptured to release the colored content liquid 152, the dyed portion can be easily visually confirmed through the opening 23a.

The material constituting the filter paper 23 is not particularly limited. For example, the material of the filter paper generally used in the manufacture of smoking articles with filters can be used. The opening portion 23a of the filter paper 23 can be formed by cutting through, for example, a region other than the opaque portion 23b.

In addition, the filter paper 23 preferably has a basis weight of 20 gsm to 100 gsm, and preferably has a basis weight of 25 gsm to 50 gsm, similarly to the filter paper 13 described in the first embodiment. For the same reason, the filter paper 13 preferably has a thickness of 15 μm to 80 μm, and preferably has a thickness of 18 μm to 40 μm.

The filter-attached smoking article 2 of the second embodiment can obtain the same effects as the filter-attached smoking article 1 of the first embodiment. That is, for example, when the filter 12 is clamped and squeezed with the index finger and thumb to rupture the flavor capsule 15 inside the filter 12 to release its colored content liquid 152 to the filter member 121, the smoker can penetrate the filter paper from the outside The perforated portion 23a of 23 makes it easy to visually confirm the filter winding sheet 122 belonging to the air-permeable paper that quickly develops a vivid color, and it is possible to quickly confirm the rupture of the fragrance capsule 15. In addition, the filter paper 23 wound on the outer peripheral surface of the filter member 121 has at least three openings 23a arranged apart from each other along its circumferential direction, from the center of the cross section perpendicular to the longitudinal direction of the filter 22 When viewing from point to point, if the openings 23a are arranged such that the angular interval between the adjacent openings 23a is 150° or less, the smoker can visually confirm that the colored content liquid 152 of the fragrance capsule 15 is released to the The inside of the filter 22 is in a state where the filter winding sheet 122 of the air-permeable paper is dyed, that is, the flavor capsule 15 is broken.

In addition, FIGS. 5 and 6 illustrate an example of a structure in which breathable paper is wound around the filter member, a transparent roll paper is wound on the breathable paper, and a filter paper is wound on the transparent roll paper, but it is not limited to this. The air-permeable paper only needs to be wound on the outside of the filter member, and other layers may be present between the filter member and the air-permeable paper within a range that does not hinder the function of rapid permeation and diffusion of the colored content liquid. In addition, the transparent roll paper only needs to be wound and exist on the outside of the breathable paper. It is possible to make other layers exist on the breathable paper as long as it does not hinder the ability to visually confirm the penetration and diffusion of the colored content liquid into the breathable paper through the openings. Between and transparent roll paper. In addition, the filter paper only needs to be wound along the outer peripheral surface of the filter, and it does not hinder the permeation and diffusion of the colored content liquid into the air-permeable paper without hindering the visual confirmation of the perforated portion, or other layers can be present on the air-permeable paper Between and filter paper.

(Third Embodiment)

Fig. 7 is a schematic cross-sectional view showing an enlarged part of the filter-attached smoking article 3 of the third embodiment. The filter-attached smoking article 3 of the third embodiment has the same structure as the filter-attached smoking article 1 of the first embodiment except that the structure of the filter 32 and the structure of the filter paper 33 are different.

The filter 32 is a so-called double filter composed of a first filter module 32a arranged on the upstream side and a second filter module 32b arranged on the downstream side.

The first filter assembly 32a is composed of a filter member 321a and a first filter winding sheet 322a wound around the outer surface of the filter member 321a. In the example shown in FIG. 7, the filter member 321a of the first filter assembly 32a is a so-called activated carbon filter in which an adsorbent such as activated carbon is dispersed and added in the gaps between fibers of a cellulose acetate fiber filled layer. The material of the first filter winding sheet 322a is not particularly limited, and, for example, plain paper can be used.

The second filter assembly 32b is composed of a filter member 321b and a second filter winding piece 322b that wraps the filter member 321b. In the example shown in FIG. 7, the filter member 321b of the second filter unit 32b is a generally white filter member made of acetate fiber. The fragrance capsule 15 is embedded in the center of the cross section perpendicular to the longitudinal direction of the filter member 321b. The second filter winding sheet 322b is the breathable paper described in the first embodiment, and is arranged to face the area where the fragrance capsule 15 is broken and the colored content liquid 152 is released.

The first filter assembly 32a and the second filter assembly 32b are connected by winding the third filter winding sheet 323 covering the outer peripheral surfaces. The third filter winding sheet 323 may be air-permeable paper, may be the transparent roll paper described in the second embodiment, or may be ordinary paper. The third filter winding sheet 323 is preferably air-permeable paper or transparent roll paper.

The filter paper 33 is wrapped around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 32 to connect the tobacco rod 11 and the filter 32. The filter paper 33 has a transparent part 33a, and the opaque part 33b is the other than the transparent part 33a. The filter paper 33 has the same configuration as the filter paper 13 described in the first embodiment, except that the transparent portion 33a and the fragrance capsule 15 inside the second filter assembly 32b belonging to the area where the colored content liquid is released are arranged to face each other. structure.

The filter-attached smoking article 3 of the third embodiment can obtain the same effects as the filter-attached smoking article 1 of the first embodiment. That is, for example, the second filter assembly 32b is clamped and squeezed with the index finger and thumb to rupture the fragrance capsule 15 inside the second filter assembly 32b, and the colored content liquid 152 is released to the filtration of the second filter assembly 32b. In the case of the filter member 321b, the smoker can easily visually confirm the second filter winding sheet 322b, which is a breathable paper, that quickly develops a bright color through the transparent portion 33a of the filter paper 33 from the outside, and can quickly confirm the flavor capsule 15 rupture.

In addition, when the smoking article 3 with the filter is inhaled, when the mainstream smoke from the tobacco rod 11 passes through the first filter assembly 32a that is an activated carbon filter, the odor of the mainstream smoke is adsorbed by the activated carbon. In addition, when mainstream smoke passes through the second filter assembly 32b, the colored content liquid 152 in the flavor capsule 15 is released to the filter member 321b of the second filter assembly 32b by breaking the flavor capsule 15. The aroma of the aroma components of mainstream cigarettes, the tobacco rod 11. In this way, since the filter is provided with a plurality of filter units 32a and 32b, it is possible to provide each filter unit with an individual function.

In addition, in this embodiment, the first filter module (activated carbon filter module) 32a is arranged on the upstream side and the second filter module 32b is arranged on the downstream side. However, the first filter module 32a may be arranged On the downstream side, the second filter assembly 32b is arranged on the upstream side.

In addition, the filter member of the smoking article 3 with a filter may be a triple filter in which filter assemblies with other functions are arranged at the middle, upstream, or downstream ends of the first and second filter assemblies.

(Fourth Embodiment)

Fig. 8 is a schematic cross-sectional view showing an enlarged part of the filter-attached smoking article 4 of the fourth embodiment. The filter-attached smoking article 4 of the fourth embodiment has the same structure as the filter-attached smoking article 3 of the third embodiment, except that the structure of the filter 42 and the filter paper 43 are different.

In the fourth embodiment, the third filter winding piece 423 that is wound around the outer peripheral surfaces of the first filter assembly 32a and the second filter assembly 32b and connects these filter assemblies 32a and 32b is used. 2 The transparent roll paper described in the embodiment.

The filter paper 43 is wound around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 42 to connect the tobacco rod 11 and the filter 42. The filter paper 43 has an opening 43a, and the opening 43a is an opaque part 43b. The filter paper 43 has the same arrangement as the filter paper described in the second embodiment, except that the opening 43a and the fragrance capsule 15 located inside the second filter assembly 32b belonging to the area where the colored content liquid is released are arranged to face each other. 23 Same structure.

The filter-attached smoking article 4 of the fourth embodiment can obtain the same effects as the filter-attached smoking article 3 of the third embodiment.

In addition, the filter member of the smoking article 4 with a filter may be a triple filter in which filter assemblies with other functions are arranged at the middle, upstream, or downstream ends of the first and second filter assemblies.

(Fifth Embodiment)

Fig. 9 is a schematic cross-sectional view showing an enlarged part of a filter-attached smoking article 5 of the fifth embodiment. The filter-attached smoking article 5 of the fifth embodiment has the same structure as the filter-attached smoking article 1 of the first embodiment, except that the structure of the filter 52 and the filter paper 53 are different.

The filter-attached smoking article 5 of the fifth embodiment includes two filter assemblies 52a and 52b arranged with a hollow portion (cavity) 54 interposed therebetween. The fragrance capsule 15 is arranged in the hollow portion 54 of the filter 52.

The first and second filter assemblies 52a and 52b are provided with filter members 521a and 521b, respectively, and a first filter winding piece 522a and a second filter winding piece 522b around which the filter members 521a and 521b are wound, respectively. The filter members 521a and 521b are generally white filter members each made of acetate fiber, for example. The first and second filter winding pieces 522a and 522b are, for example, plain paper.

The first and second filter assemblies 52 a and 52 b arranged with the hollow part 54 interposed therebetween are connected by a third filter winding piece 523 wound around the outer peripheral surfaces including the hollow part 54. The third filter winding sheet 523 uses the air-permeable paper described in the first embodiment. That is, the third filter take-up sheet 523 is air-permeable paper, and is arranged close to the region where the fragrance capsule 15 located in the hollow portion 54 is broken and the colored content liquid 152 is released.

The filter paper 53 is wrapped around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 52 to connect the tobacco rod 11 and the filter 52. The filter paper 53 has a transparent part 53a, and the opaque part 53b is the other than the transparent part 53a. The filter paper 53 has the same structure as the filter paper 13 described in the first embodiment, except that the transparent portion 53a and the fragrance capsule 15 arranged in the hollow portion 54 belonging to the colored content liquid release area are arranged to face each other.

The filter-attached smoking article 5 of the fifth embodiment can achieve the same effects as the filter-attached smoking article 1 of the first embodiment. That is, for example, with the index finger and thumb, the hollow part 54 is sandwiched between the first and second filter assemblies 52a, 52b and the filter 52 part is squeezed, so that the fragrance capsule 15 in the hollow part 54 is broken and colored. When the content liquid 152 is discharged into the hollow part 54 between the first and second filter assemblies 52a, 52b, the smoker can easily visually confirm that the transparent part 53a of the filter paper 53 quickly appears bright color is belonging to the breathable paper. The third filter winds up the sheet 523, and the rupture of the fragrance capsule 15 can be quickly confirmed.

In addition, the fragrance capsule 15 is arranged in the hollow portion 54. Due to the rupture of the fragrance capsule 15, the colored content liquid 152 therein will scatter into the hollow portion 54 and is directly released to penetrate and diffuse to expose the air permeability in the hollow portion 54. The third filter winding sheet 523 of paper. Therefore, compared with the case where the fragrance capsule 15 described in the first to fourth embodiments is embedded in the filter member, even a small amount of colored content liquid can be quickly confirmed as broken.

In addition, in the description of the fifth embodiment, an example of a filter having two filter units and one hollow portion is shown, but the number of filter units and hollow portions is not limited to this. That is, the filter may be in a form in which n (n is an integer of 3 or more) filter elements are connected via (n-1) hollow parts. Here, n is 2 to 4, preferably n is 2 to 3.

(Sixth Embodiment)

Fig. 10 is a schematic cross-sectional view showing an enlarged part of a filter-attached smoking article 6 of the sixth embodiment. The filter-attached smoking article 6 of the sixth embodiment has the same structure as the filter-attached smoking article 5 of the fifth embodiment, except that the structure of the filter 62 and the filter paper 63 are different.

In the sixth embodiment, the filter 62 further includes a fourth filter winding sheet 624 wound around the outer peripheral surface of the third filter winding sheet 523 which is a breathable paper. The fourth filter winding sheet 624 uses the transparent roll paper described in the second embodiment.

The filter paper 63 is wound around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 62 to connect the tobacco rod 11 and the filter 62. The filter paper 63 has an opening portion 63a, and the opening portion 63a is an opaque portion 63b. The filter paper 63 has the same structure as the filter paper 23 described in the second embodiment, except that the perforated portion 63a and the fragrance capsule 15 arranged in the hollow portion 54 belonging to the release area of the colored content liquid are arranged to face each other. .

The filter-attached smoking article 6 of the sixth embodiment can obtain the same effects as the filter-attached smoking article 5 of the fifth embodiment.

(The seventh embodiment)

Fig. 11 is a schematic cross-sectional view showing an enlarged part of the filter-attached smoking article 7 of the seventh embodiment. The filter-attached smoking article 7 of the seventh embodiment has the same structure as the filter-attached smoking article 5 of the fifth embodiment except that the structure of the filter 72 and the filter paper 73 are different.

The filter 72 includes two filter modules 72 a and 52 b arranged with a hollow portion (cavity) 54 interposed therebetween. A fragrance capsule 75 is arranged in the hollow portion 54 of the filter 72.

The first filter assembly 72a includes a filter member 521a and a first filter winding piece 722a that wraps the filter member 521a. The first filter winding piece 722a uses the air-permeable paper described in the first embodiment. That is, the first filter take-up sheet 722a is air-permeable paper, and, as described later, is arranged to break with the fragrance capsule 75 located in the hollow portion 54 and the colored content liquid 752 therein is directionally released. (The filter member 521a of the first filter assembly 72a) opposes each other.

The first and second filter assemblies 72 a and 52 b arranged with the hollow portion 54 interposed therebetween are connected by the third filter winding sheet 723 wound around the outer peripheral surfaces including the hollow portion 54. The third filter winding sheet 723 may be air-permeable paper, may be the transparent roll paper described in the second embodiment, or may be ordinary paper. The third filter winding sheet 723 is preferably air-permeable paper or transparent roll paper.

The fragrance capsule 75 includes a capsule main body 751 and a colored content liquid 752 held in the capsule main body 751 and containing a fragrance component and a dye. The capsule main body 751 has a truncated cone shape in a horizontal posture, and is arranged in the hollow portion 54 such that a small circular surface faces the first filter assembly 72a. The fragrance capsule 75 having such a shape and arrangement posture, when broken, its colored content liquid 752 is released from the small circular surface toward the direction of the first filter assembly 72a (arrow X in Fig. 11). It becomes a structure that imparts release directionality. The colored content liquid 752 has the same structure as the colored content liquid 152 described in the first embodiment.

The filter paper 73 is wound around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 72 to connect the tobacco rod 11 and the filter 72. The filter paper 73 has a transparent portion 73a, and the opaque portion 73b is other than the transparent portion 73a. The filter paper 73 has the same structure as the filter paper 13 described in the first embodiment, except that the transparent portion 73a is arranged to face the first filter assembly 72a belonging to the region where the colored content liquid is discharged.

The filter-attached smoking article 7 of the seventh embodiment can obtain the same effects as the filter-attached smoking article 1 of the first embodiment. That is, when the fragrance capsule 75 in the hollow portion 54 is ruptured, the colored content liquid 752 therein is released toward the filter member 521a of the first filter assembly 72a as indicated by the arrow X due to the shape and arrangement posture of the fragrance capsule 75. The released colored content liquid 752 penetrates through the filter member 521a, and diffuses to the first filter winding sheet 722a which is a breathable paper. The permeated and diffused colored content liquid further permeates and diffuses to the outer surface of the first filter take-up sheet 722a, which is preferably a third filter take-up sheet 723, which is a breathable paper, and develops a vivid color. As a result, the smoker can easily visually recognize the third filter winding sheet 723 and the first filter winding sheet 722a, which are air-permeable papers, that quickly develop vivid colors through the transparent portion 73a of the filter paper 73, and can quickly confirm The rupture of the spice capsule 75.

(Eighth Embodiment)

Fig. 12 is a schematic cross-sectional view showing an enlarged part of a filter-attached smoking article 8 of the eighth embodiment. The filter-attached smoking article 8 of the eighth embodiment has the same structure as the filter-attached smoking article 7 of the seventh embodiment, except that the structure of the filter 82 and the filter paper 83 are different.

In the eighth embodiment, the first and second filter assemblies 72a, 52b arranged with the hollow portion 54 interposed therebetween are formed by the third filter winding sheet 823 wound on the outer peripheral surfaces including the hollow portion 54 In connection, the third filter winding sheet 823 uses the transparent roll paper described in the second embodiment.

The filter paper 83 is wrapped around the outer peripheral surface of the downstream end of the tobacco rod 11 and the outer peripheral surface of the filter 82 to connect the tobacco rod 11 and the filter 82. The filter paper 83 has an opening 83a, and the opening 83a is an opaque part 83b. The filter paper 83 is arranged in a position along the longitudinal direction of the filter 82 with the opening 83a facing the first filter assembly 72a belonging to the area where the colored content liquid is discharged, and has the same characteristics as the second embodiment. The filter paper 23 described in the form has the same structure.

The filter-attached smoking article 8 of the eighth embodiment can obtain the same effects as the filter-attached smoking article 7 of the seventh embodiment.

Hereinafter, the embodiment will be described in more detail based on test examples.

Test example 1: Air permeability and opacity of filter roll-up sheet

In this test example, test samples 1 to 3 of filters with fragrance capsules arranged inside were produced, and the influence of the air permeability and opacity of the filter roll-up sheet was evaluated.

(1) Preparation of test samples

(1-1) Preparation of test sample 1

As the filter member, a cellulose acetate fiber (5.9Y35000 (trade name), manufactured by Daicel Corporation) formed in a cylindrical shape with a diameter of 7.7 mm and a length of 27 mm was used. A spherical fragrance capsule with a diameter of 3.5 mm is embedded in the center of the filter member. The fragrance capsule has a structure in which 17.1 μl of colored content liquid is held in a capsule body with a volume of 22.4 μl. The colored content liquid contains MCT as a solvent, sodium copper chlorophyll as a dye, menthol as a fragrance ingredient, and a viscosity enhancer, and has a viscosity of 86mPs‧s. For the outer peripheral surface of this filter member, with a general adhesive (HM335-00 (trade name), Henkel AG & Company, manufactured by KGaA), the air permeability of the package is 10000 C.U., the opacity is 39.65%, Filter take-up sheet (P-10000c, manufactured by NIPPON PAPER PAPYLIA CO., LTD.) with an area of 661.5 mm. On the outer peripheral surface of this breathable paper, a common adhesive (HMS1101B (trade name), manufactured by Daido Chemical Corporation) is used to roll transparent cellophane (P-BD#600 (trade name), Futamura Chemical Co., Ltd.). system).

(1-2) Production of test samples 2 and 3

Except that a filter take-up sheet (P-30000c, manufactured by NIPPON PAPER PAPYLIA CO., LTD.) having an air permeability of 30000 C.U. and an opacity of 31.36% was used, test sample 2 was produced in the same manner as test sample 1. Similarly, a test sample was produced in the same manner as Test Sample 1, except that a filter take-up sheet (plain paper 24, manufactured by NIPPON PAPER PAPYLIA CO., LTD.) with an air permeability of 0C.U. and an opacity of 67.65% was used. 3.

(2) Test method

The part of each test sample 1 to 3 in which the fragrance capsule is embedded is squeezed in the radial direction by applying a load of 15N to the fragrance capsule to rupture the fragrance capsule. Next, after leaving it for one minute, observe the state where the colored content liquid oozes to the filter take-up sheet, and measure its color saturation (Saturation) ΔE[-]. At this time, the color saturation is measured by SpectroEye of a measuring machine manufactured by X-Rite Inc. in accordance with JIS8781. Four tests were performed on each of the test samples 1 to 3, and the average value was shown in Table 1 as the test result of the color saturation ΔE[-]. Also, in Figure 13 (a), (b), and (c), it is shown schematically that the colored content liquid oozes into the filter coils of test sample 3 (FL3), test sample 1 (FL1), and test sample 2 (FL2) The status of the fetch.

(3) Test results

From the test results shown in Fig. 13 (a) to (c), it can be understood that in test samples 1 and 2 with air permeability of 10000C.U. and 30000C.U., the colored content liquid affects the filter take-up sheet The exudation area (S1, S2) of the test sample 3 with an air permeability of 0C.U. is 1.5 to 2 times larger. From this result, it can be seen that the higher the air permeability of the filter winding sheet, the easier it is for the colored content liquid to diffuse on the surface of the filter. In addition, according to the test results shown in Table 1, compared with test sample 3, test samples 1 and 2, although the bleeding area of the colored content liquid to the filter take-up sheet is larger, the color saturation ΔE is lower. The transparency is 30% or more and a sufficient value can be obtained.

Test Example 2: Viscosity of colored content liquid of perfume capsule

In this test example, test samples 4 to 6 were made of filters with fragrance capsules arranged inside, and the influence of the viscosity of the colored content liquid of the fragrance capsules was evaluated.

(1) Preparation of test samples

(1-1) Production of test samples 4 to 6

Test samples 4, 5, and 6 were produced in the same manner as test sample 1, except that the amount of added thickener was changed so that the viscosity of the colored content liquid was 86 mPa·s, 118 mPa·s, and 162 mPa·s, respectively. The viscosity is based on JIS-K7117-1, the colored content liquid is adjusted to 20°C and measured with a rotary viscometer (TVB-10M manufactured by TOKI SANGYO CO., LTD).

(2) Test method

The part of each test sample 4 to 6 where the fragrance capsule was embedded was squeezed in a radial direction by applying a load of 15N to the fragrance capsule to rupture the fragrance capsule. At this time, on the outer peripheral surface of each of the test samples 4 to 6, the colored content liquid permeated to two places where the outer peripheral surface of the filter was pressed in the radial direction. Next, after leaving it for one minute, the filter take-up sheet of each test sample was removed, and the distance [mm] between the areas where the colored content liquid oozes to the filter take-up sheet was measured. Four tests were performed on each test sample, and the average value is shown in Figure 14 as the test result.

(3) Test results

According to the results in Figure 14, it can be seen that the lower the viscosity of the colored content liquid of the flavor capsules of each test sample, the shorter the distance between the colored content liquid oozing out to the filter take-up sheet. From this result, it can be seen that the lower the viscosity of the colored content liquid of the fragrance capsule, the easier it is for the colored content liquid to spread on the surface of the air-permeable paper wound on the outer peripheral surface of the filter member.

Test Example 3: Air permeability of paper and oil absorption according to Klimt test method

In this test example, for each of the papers 1 to 7 made by NIPPON PAPER PAPYLIA CO., LTD. shown in Table 2, the oil absorption [mm] was measured according to the Klimt test method of water absorption test method (JIS 8141) .

(1) Test method

Each of the papers 1 to 7 was cut into a width of 15 mm and a length of 200 mm to prepare a test piece. Next, from a distance of 15 mm from the short side of each test piece, a marking line was drawn with a pencil, and a jig overlapped between the marking line and the short side was installed. The container is filled with a medium-chain fatty acid (MCT), which is a general flavor capsule solvent at 23°C, and the unmarked end of each test piece is mounted on the suspension. Next, confirm that the marking line of each test piece becomes a straight line, quickly dip the test piece in the MCT to the marking line, and leave it for five minutes. Next, measure the height [mm] that the MCT rises from the mark in the test piece, which is the oil absorption [mm] obtained by the Klimt test method. The test was performed 10 times on each paper, and the average value is shown in Table 2 as the test result. In addition, the time that the test piece is immersed in the MCT is assumed to be an average smoking time of the smoking article with the filter and set to five minutes.

(2) Test results

According to the results in Table 2, the test pieces of paper 1 to 5 with air permeability of 1000 C.U. to 30000 C.U. can obtain high oil absorption of 18.3 mm to 30.6 mm. In addition, the test pieces of paper 2 to 5 with an air permeability of 7000 C.U. to 30000 C.U. can obtain a particularly high Kerim oil absorption of 23.3 mm to 30.6 mm. From this result, it can be seen that the Krim oil absorption of MCT of the paper with high air permeability is about 1.5 to 2 times higher than that of the test piece of the plain paper 24 of the paper 6, and the MCT spreads to a larger area. Figure 15 is a graph showing the relationship between the density of paper and the oil absorption based on the Klimt test method. From this result, it can also be seen that paper with low density generally has high air permeability, so MCT has a high Kerim oil absorption, and MCT spreads to a larger area.

Test example 4: The amount of colored content liquid/the value of the cross-sectional area of the filter

In this test example, test samples 7 to 12 were prepared, and the value of the amount of the colored content liquid of the fragrance capsule/the cross-sectional area of the filter was evaluated.

(1) Production of test samples 7 to 12

Spherical flavor capsules 1 and 2 with the sizes shown in Table 3 were produced. Next, the fragrance capsules 1 and 2 were embedded in the filters 1 to 3 having the sizes shown in Table 4, and the test samples 7 to 12 shown in Table 5 were produced in the same manner as the test sample 1. Table 5 shows the value of the amount of colored content of each test sample/the cross-sectional area of the filter [μl/mm ² ] at this time.

(2) Test method

The part of each test sample 7 to 12 where the fragrance capsule is embedded is squeezed in the radial direction by applying a load of 15N to the fragrance capsule to rupture the fragrance capsule. At this time, on the outer peripheral surface of each of the test samples 7 to 12, the colored content liquid penetrated into two places where the outer peripheral surface portion of the filter was pressed in the radial direction.

(3) Test results

According to the results, it can be seen that if the amount of colored content liquid/the cross-sectional area of the filter [μl/mm ² ] of each test sample is 0.2μl/mm ² or more, the colored content liquid is sufficiently diffused to the filter member. The surface of the breathable paper on the outer peripheral surface.

In addition, although several embodiments have been described, these embodiments are only examples and do not limit the scope of the invention. These embodiments can be implemented in various other forms, and various changes can be made without departing from the gist of the invention. These embodiments and their changes are also included in the scope and gist of the invention, and are included in the scope of the invention described in the patent application and its equivalent scope.

1. Smoking items with filter

11‧‧‧Smoking body (pipe)

12‧‧‧Filter

13‧‧‧Filter tip paper

13a‧‧‧Transparency Department

13b‧‧‧Opacity

15‧‧‧Spice capsules

111‧‧‧Tobacco

112‧‧‧Cigarette Paper

121‧‧‧Filter component

122‧‧‧Filter take-up sheet

151‧‧‧Capsule body

152‧‧‧Colored Content Liquid

Claims (13)

A smoking article with a filter, comprising: a smoking body; a filter having a filter member arranged at the downstream end of the smoking body, and a breathable paper wound on the outer side of the filter member, and returned inside Disposing a fragrance capsule; and a filter paper, wound around the outer peripheral surface of the downstream end of the smoking body and the outer peripheral surface of the filter, connecting the smoking body and the filter; the fragrance capsule includes: a capsule body, And the colored content liquid that is held in the capsule body and contains fragrance ingredients, the colored content liquid has a viscosity of 120 mPa·s or less; the breathable paper is arranged to face the area where the fragrance capsule ruptures and the colored content liquid is released , And have an air permeability of 1000C.U. to 30000C.U.; the aforementioned filter paper is impermeable to the aforementioned colored content liquid, and is provided with at least three transparent filters arranged separately from each other along the circumferential direction of the aforementioned filter paper Each of the transparent portions is arranged to face the area where the colored content liquid is released. The filter-attached smoking article described in claim 1, wherein, when viewed from the center point of the cross section perpendicular to the longitudinal direction of the filter, the transparent parts of the filter paper are arranged in The angular interval between the adjacent transparent parts is 150° or less. Smoking with filter as described in item 1 or 2 of the scope of patent application An article, wherein the aforementioned filter paper includes cellophane, polyolefin film, polyvinyl chloride film, or cellulose acetate film. The filter-attached smoking article described in claim 1 or 2, wherein the transparent portion of the filter paper has a length along the longitudinal direction of the filter than along the filter The length of the paper in the circumferential direction is longer. A smoking article with a filter, comprising: a smoking body; a filter having a filter member arranged at the downstream end of the smoking body, a breathable paper wound on the outer side of the filter member, and a wound paper The transparent roll paper on the outer side of the breathable paper, and the fragrance capsule is also arranged inside; and the filter paper, wound on the outer peripheral surface of the downstream end of the smoking body and the outer peripheral surface of the filter, and the smoking body And the aforementioned filter; the aforementioned fragrance capsule includes: a capsule body, and a colored content liquid held in the aforementioned capsule body and containing fragrance ingredients, the aforementioned colored content liquid having a viscosity of 120 mPa·s or less; the aforementioned breathable paper is configured to The aforementioned perfume capsule is broken and the area where the colored content liquid is released is opposite, and has an air permeability of 1000 C.U. to 30000 C.U.; the aforementioned transparent roll paper is impermeable to the colored content liquid, and at least part of it is transparent Section; The filter paper is provided with each other along the circumferential direction of the filter paper At least three openings are arranged separately, and each of the openings is arranged to face the area where the colored content liquid is released. The filter-attached smoking article described in claim 5, wherein, when viewed from the center point of a cross section perpendicular to the longitudinal direction of the filter, the openings of the filter paper are arranged The angular interval between adjacent openings is 150° or less. The filter-attached smoking article described in item 5 or 6 of the scope of patent application, wherein the transparent roll paper includes cellophane, polyolefin film, polyvinyl chloride film, or cellulose acetate film. The filter-attached smoking article described in claim 5 or 6, wherein the openings of the filter paper each have a length along the longitudinal direction of the filter than along the filter The length of the mouthpiece in the circumferential direction is longer. The filter-attached smoking article according to any one of items 1, 2, 5, and 6 in the scope of the patent application, wherein the colored content liquid contains the fragrance component and the dye. The filter-attached smoking article described in any one of items 1, 2, 5, and 6 of the scope of patent application, wherein the aforementioned breathable paper has an opacity of more than 30%. The filter-attached smoking article described in any one of items 1, 2, 5, and 6 in the scope of the patent application, wherein the value of the amount of the colored content liquid/the cross-sectional area of the filter is 0.2 μl/mm ² or more. The smoking article with filter as described in any one of items 1, 2, 5, and 6 of the scope of patent application, wherein: The filter member includes a plurality of filter members separated from each other via a hollow portion, the fragrance capsule is disposed in the hollow portion, and the breathable paper is wound across the hollow portion to be present in the plurality of filter members Outside. The filter-attached smoking article according to any one of claims 1, 2, 5, and 6, wherein the filter member includes a plurality of filter members arranged apart from each other via a hollow portion, The fragrance capsule is arranged in the hollow portion, and when the fragrance capsule is squeezed, the colored content liquid is discharged to one of the filter members arranged through the hollow portion, and the breathable paper is wound to be present in the colored content The outside of the filter member on the one where the liquid is ejected.

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