WO2014156839A1

WO2014156839A1 - Filter equipped with capsule having liquid encapsulated therewithin and smoking article provided with same

Info

Publication number: WO2014156839A1
Application number: PCT/JP2014/057346
Authority: WO
Inventors: 亮治藤田; 弘樹中合
Original assignee: 日本たばこ産業株式会社
Priority date: 2013-03-26
Filing date: 2014-03-18
Publication date: 2014-10-02
Also published as: JPWO2014156839A1; TWI526163B; KR20150085073A; EP2923588B1; JP5984232B2; EA028423B1; EP2923588A1; CN104936469B; KR101714289B1; EP2923588A4; MY172193A; CN104936469A; UA114359C2; EA201591587A1; TW201503836A

Abstract

Provided is a filter comprising: a capsule (CA) that has a side wall (10) that constitutes the side surface of a tube shape and a pair of end walls (11, 12) that close each of the front and rear openings of the tube shape, that has a liquid encapsulated therewithin, and in which at least the side wall (10) is elastically deformable and at least one circular main thin-walled area (10a) is provided along the peripheral direction of the side wall or at least one linear main thin-walled area (10c) is provided along an axial direction that is perpendicular to the peripheral direction; and an approximately cylindrical filter main body that is formed so as to include an accommodation space (204) that accommodates the capsule (CA). A direction in which either the circular main thin-walled area (10a) or the linear main thin-walled area (10c) extends and the radial direction of the filter main body are configured so as to be parallel, and the capsule is accommodated within the accommodation space.

Description

Filter equipped with capsule enclosing liquid and smoking article provided with this filter

The present invention relates to a filter equipped with a capsule enclosing a liquid suitable for use in a smoking article such as a cigarette with a filter, and a smoking article provided with the filter.

When smoking, the filter of cigarettes such as a cigarette with a filter is infused with a liquid such as an aqueous solution in which water and additives related to flavor are dissolved. Addition of savory taste becomes possible. In this case, the liquid is mounted in the filter body in a form enclosed in the capsule, and the user destroys the capsule prior to smoking, thereby ejecting the liquid from the capsule and allowing the filter to soak. Specifically, the user applies external force to the capsule by sandwiching the capsule between fingers from the outside of the filter, and destroys the capsule.

However, since capsules formed from polysaccharides such as gelatin are water-soluble, they are not suitable for encapsulating hydrophilic liquids. Such water-soluble capsules are generally limited to encapsulating hydrophobic fragrances and the like. . In contrast, capsules made of synthetic resin are water-insoluble, suitable for enclosing hydrophilic liquids and excellent in shape stability, but are harder than water-soluble capsules, Various ideas have been made to facilitate destruction as described below.

For example, when the capsule has a cylindrical shape, a plurality of long grooves extending radially are formed on one end wall of the capsule, and these grooves break when the capsule is subjected to an external force that is crushed. The content liquid can be ejected (Patent Document 1).
In addition, there is a capsule that includes a sealed capsule, and when the external force is applied, the seal is broken and the content liquid is ejected (Patent Document 2).
Furthermore, a capsule in which two capsule halves are fitted together via an annular seal is also known. When this capsule is crushed, the seal is broken and liquid is ejected (Patent Document 3).

Japanese Patent Publication No. 6-2164 Japanese Patent No. 2515794 Special table 2008-528053 gazette

However, in reality, it is still difficult to destroy a capsule formed of the above-mentioned synthetic resin, and it still requires a large force (external force), and it was not easy to pick and crush it with a finger. That is, although the prior art described above facilitates the destruction to some extent, it still requires a considerable force to break the groove and the seal, and further fragility of the capsule is required.

An object of the present invention is to provide a filter having a capsule with improved ease of crushing (easy to break) and a smoking article such as a cigarette with a filter provided with such a filter.

The above-described object has a side wall that forms a cylindrical side surface and a pair of end walls that close the front and rear openings of the cylindrical shape, respectively, and liquid is sealed inside, and at least the side wall is elastically deformed. It is possible, and at least one ring-shaped main thin region provided along the circumferential direction on the side wall, or at least one linear main thin region provided along the axial direction perpendicular to the circumferential direction. A capsule with
A substantially cylindrical filter body formed including a storage space for storing the capsule,
The capsule is stored in the storage space so that the direction in which the ring-shaped main thin region or the linear main thin region extends and the radial direction of the filter main body are parallel to each other. This is achieved by a filter equipped with a capsule characterized by that.

In addition, the capsule is provided with a linear sub-thin area formed in a direction perpendicular to the main thin area when the ring-shaped main thin area is formed, or when the capsule is the linear main thin area, A ring-shaped sub-thin area formed in a direction perpendicular to the main thin area can be provided.

The ring-shaped main thin region, the linear sub-thin region, the linear main thin region, and the ring-shaped sub thin region are formed as a continuous region or a discontinuous region including a discontinuous portion. Can do.

In addition, the ring-shaped main thin region, the linear sub-thin region, the linear main thin region, and the ring-shaped sub thin region can be formed thinner than other regions to form a groove.
Moreover, it is preferable that the casing covering the filter main body is water resistant.
Moreover, when the said linear main thin area is provided in the said capsule, it is preferable to form the casing which covers the said filter main-body part with the transparent sheet | seat material which makes the said storage space visible.

And it can be set as smoking articles, such as a cigarette with a filter, incorporating the filter carrying the capsule in any one of the above.

With the capsule-mounted filter according to the present invention, the user can easily break the capsule, whereby the liquid ejected from the capsule can be efficiently infiltrated into the filter and the cigarette.
Therefore, a smoking article such as a cigarette with a filter that employs a filter equipped with such a capsule allows the user to enjoy an improved taste by easily crushing the capsule.

It is the figure shown about the case where the filter carrying the capsule which becomes the example of 1st Embodiment which concerns on this invention is employ | adopted as the cigarette as a smoking article. It is the figure which took out and showed the capsule mounted in the filter of FIG. 1A. It is the figure which showed typically a mode when external force was made to act on the filter shown to FIG. 1A. It is the figure which showed the example of improvement of the filter shown to FIG. 1A. It is the figure which showed the case where the discontinuous part was provided in the thin area of the filter shown to FIG. 1A. It is the figure shown about the case where the filter carrying the capsule used as the 2nd embodiment which concerns on this invention is employ | adopted as the cigarette as a smoking article. It is the figure which took out and showed the capsule mounted in the filter of FIG. 5A. It is the figure which showed typically a mode when external force was made to act on the filter shown to FIG. 5A. It is the figure which showed the example of improvement of the filter shown to FIG. 5A. It is a figure for demonstrating a mode that the filter shown to FIG. 5A was manufactured and evaluated. It is the figure shown about the modification of the filter shown to FIG. 5A.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1A shows a case where a filter equipped with a capsule according to a first embodiment of the present invention is employed in a cigarette CG as a smoking article. FIG. 1B shows the capsule CA-1 mounted on the filter FL-1 provided in the cigarette CG.

In FIG. 1A, a cigarette CG with a filter is configured by arranging a filter FL-1 at one end of a cigarette main body 100 that is formed as a rod by wrapping cigarettes with thin paper. This filter FL-1 is provided with a filter main body composed of two rod-

shaped filter elements

202 and 203 inside a flexible casing 201. The casing 201 is formed by, for example, rounding a sheet material. Bonded to form a cylinder. Then, the cigarette body 100 and the filter FL-1 are connected via a chip paper 101 disposed so as to hang over both, thereby forming a single cigarette CG with a filter.

In the casing 201, a first filter portion 202 serving as a first filter element and a second filter portion 203 serving as a second filter element are disposed so as to be positioned at both ends. The material of these

filter parts

202 and 203 can be the same material as the filter material used for a cigarette with a normal filter, that is, an acetate fiber, and may further contain charcoal. A paper filter or the like can also be used. The materials of the

filter units

202 and 203 may be the same or different.
The 1st filter part 202 located in the one end of the casing 201 becomes a cigarette side, and the 2nd filter part 203 located in the other end comprises the suction mouth. The first filter unit 202 and the second filter unit 203 are arranged apart from each other as described above, and the space between them is a storage space 204. Strictly speaking, the first filter unit 202, the second filter unit 203, and the space therebetween. The filter main body is configured to include the storage space 204. Inside the storage space 204, a capsule CA-1 is stored.

Here, referring also to FIG. 1B showing the enlarged capsule CA-1, the capsule CA-1 has a generally hollow cylindrical shape (columnar shape), and a liquid is sealed therein.
More specifically, the capsule CA-1 has a side wall 10 that forms a cylindrical side surface, and a pair of

end walls

11 and 12 that respectively close the front and rear openings of the cylindrical shape, and a liquid is sealed inside. . The side wall 10 is made of at least an elastically deformable synthetic material. The

end walls

11 and 12 may be formed of the same material, but are not particularly limited as long as the material can reliably close the opening of the cylindrical side wall 10.
As a suitable synthetic material for forming the side wall 10, for example, a plastic material for food that is selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polyvinyl alcohol, and polyamide is used. Is desirable.
Moreover, although the same material as a side wall may be used about the said

end walls

11 and 12, you may make it close opening by heat sealing as film materials, such as a laminate film. When such a seal film is employed, it may be adhered to the opening edge of the side wall with a thermoplastic adhesive. As this adhesive, for example, a hot melt adhesive mainly composed of adhesive polyolefin resin, low molecular weight polyethylene and EVA (ethylene vinyl alcohol) can be used.

The liquid to be enclosed in the capsule CA-1 may be appropriately selected and used as long as it can improve the taste of cigarette, and is not particularly limited. For example, water, hydrophilic flavor in water, hydrophobic Any sex flavor can be used. In the case of a hydrophobic flavor, it may be incorporated in an emulsified state, or a solvent such as propylene glycol or ethanol may be used. More specifically, for example, a solution obtained by dissolving sugar, a tobacco extract, a fragrance, or the like in water, or a solution based on water such as brandy can be used as the liquid. If necessary, a chemical solution for preventing alteration may be mixed. Furthermore, as the liquid, a fine solid such as a microcapsule containing a fragrance (fragrance capsule) or the like may be adopted, and the fragrance capsule may be suspended in a liquid as a liquid.
In addition, it is preferable that at least one of the casing 201 and the chip paper 101 is provided with a structure that employs a sheet material having a water resistance function to prevent the liquid from leaking to the outer peripheral portion.

The filter FL-1 employed in the cigarette CG is equipped with a capsule CA-1 that easily breaks when subjected to an external force (a force that grips the filter portion with a finger) by the user.
As described above, the filter FL-1 is rod-shaped (substantially cylindrical) corresponding to the cigarette body 100, and the capsule CA-1 is disposed in the storage space 204 between the

filter portions

202 and 203. Then, as indicated by an arrow F in FIG. 1A, an external force is applied by an operation of pinching the filter in the radial direction. The side wall 10 has an easily breakable structure so as to be easily broken when the capsule CA-1 receives this external force. Specifically, a thin wall area described later is provided. The thin region is a region formed thinner than other regions in order to make it easier to break than other portions subjected to stress, and is, for example, a groove formed as a V-shaped groove.

The side wall 10 of the capsule CA-1 illustrated in FIGS. 1A and 1B has an annular shape along the circumferential direction, and has at least one ring-shaped main thin-walled area 10a formed linearly (in FIGS. 1A and 1B). 4) It is provided. As shown in FIG. 1A, the cylindrical capsule CA-1 is set in the space 204 in a lying position.
As a result, the direction in which the annular thin area 10a extends is parallel to the direction in which the external force F is applied when the external force F is applied in an operation that grips the filter FL-1 in the radial direction.

FIG. 2 is a diagram schematically showing a state when an external force F is applied to the capsule CA-1.
The side wall 10 of the capsule CA-1 is provided with main thin areas 10a (four examples) in parallel with the direction in which the external force F acts. If such a main thin region 10a is provided, the deformation progresses when an external force is applied, and if the stress of the bent portion 13 where the stress is concentrated due to bending becomes greater than a certain level, it breaks as shown in the figure. When the external force F acts, the pressure in the capsule CA-1 increases, and therefore, the capsule CA-1 also generates a force in a direction extending perpendicular to the external force F. Therefore, the main thin region 10a parallel to the external force F is easily broken.

FIG. 3 shows an improved example in which a linear sub thin area 10b formed in a direction perpendicular to the ring-shaped main thin area 10a is further provided. While the main thin region 10a is ring-shaped, the sub thin region 10b has a linear shape extending in the direction of the axis CL perpendicular to the circumferential direction in which the main thin region 10a is formed. If the sub (auxiliary) thin region 10b is formed in this way, the capsule CA-1 can be more easily broken.

The main thin region 10a and the linear sub thin region 10b do not necessarily have to be continuous line regions. That is, you may form discontinuously including the part (discontinuous part) which does not provide a thin area in part. FIG. 4 illustrates the case where the discontinuous portion 14 is provided in the ring-shaped main thin region 10a.
Note that discontinuous portions may be similarly formed in the case of the form including the main thin region 10a and the sub thin region 10b shown in FIG. In this case, either one of the main thin area 10a and the sub thin area 10b or both may be used.
Furthermore, there is no limitation on the form of discontinuity, for example, a regular broken line shape or a broken line shape with irregular break positions may be used.

Hereinafter, the case where the filter FL-2 equipped with the capsule CA-2 formed as the second embodiment is further adopted in the cigarette CG will be further described with reference to the drawings. However, parts that have already been described are denoted by the same reference numerals, and redundant description will be omitted, and different parts will be mainly described.
FIG. 5A shows an example in which the filter FL-2 on which the capsule according to the present invention is mounted is adopted in the cigarette CG. FIG. 5B shows the capsule CA-2 mounted on the filter FL-2.

In the capsule CA-2 illustrated in FIGS. 5A and 5B, at least one linear main thin region 10c provided along the axis CL direction (perpendicular to the circumferential direction) of the cylindrical side wall 10 is provided. There is something. As shown in FIG. 5A, the cylindrical capsule CA-2 is set in a standing posture in the space 204.
Thus, the direction in which the linear thin region 10c extends is parallel to the direction in which the external force F is applied when the external force F is applied to the filter FL in the radial direction.

FIG. 6 is a diagram schematically showing a state when an external force F is applied to the capsule CA-2.
As described above, the main thin wall region 10c is provided on the side wall 10 of the capsule CA-2 in parallel with the direction in which the external force F acts. When such a main thin region 10c is provided, the deformation proceeds by applying an external force, and when the stress becomes a certain level or more, as shown in the figure, the bending is broken at the bent portion 13 where the stress is concentrated. When the external force F acts, the pressure in the capsule CA-2 increases, and therefore, the capsule CA-2 also generates a force in a direction extending perpendicularly to the external force F. Therefore, the main thin region 10c parallel to the external force F is easily broken.
In the case of this example, it is preferable that the position of the capsule CA-2 in the storage space 204 is visible. For example, a casing 201 that covers the filter main body including the storage space 204 is made of a transparent sheet material so that the storage space 204 is visible. Further, the chip paper 101 covering the outside is similarly made of a transparent sheet material. In this way, the user can confirm the position of the capsule CA-2 and crush it.
At that time, for example, a character such as “PUSH” as shown in FIG. 6 is attached so that the user can confirm the place to press, or if it is too small to be read, some mark (the pressed surface is red, blue, etc.) It is desirable to add a color).

FIG. 7 shows an improved example in which an annular sub-thin area 10d formed in a direction perpendicular to the linear main thin area 10c is further provided. In the case of this example, the main thin region 10c has a linear shape extending in the direction of the axis CL, and the sub thin region 10d has a ring shape. If the sub (auxiliary) thin region 10c is formed in this way, the capsule CA-2 can be more easily broken.
Also in the case of the second embodiment, the main thin region 10c and the ring-shaped sub thin region 10d do not necessarily have to be continuous line regions. That is, as described above, a discontinuous form in which a discontinuous part is included in part may be employed.

(Manufacturing, evaluation)
Furthermore, since the capsule CA-2 described as the second embodiment was manufactured and evaluated, it will be described.
Capsule CA-2 was produced using distilled water as the liquid enclosed in the capsule, and the breaking strength was measured. Capsule CA-2 was produced by injection molding using low-density polystyrene, which is an edible plastic material. Completely by injecting 90% (v / v) distilled water into the space inside the capsule CA-2 and heat-sealing the open end with a polyamide / low density polyethylene laminate film (KIMURA-TEC, NY / LDPE, 60 μm) Sealed to obtain capsules containing distilled water.
The breaking strength of the capsule was measured with a creep meter (RHEOMETER II, manufactured by Yamaden Co., Ltd.). The state and the measurement results are shown in FIG.
The same capsule CA-2 was manufactured, and the direction in which the external force was applied was varied. Test A is a case corresponding to the present invention in which an external force is applied in parallel to the thin wall region 10c when an external force is applied to the side wall where the thin wall region 10c is formed.
In the case of Test A, the breaking load of the capsule was 95.6 N, whereas in the case of Test B, it was 29.6 N, and it was confirmed that the force required for breaking may be extremely small.

Furthermore, a preferred modification of the second embodiment will be described with reference to FIG.
The capsule CA-2 illustrated in FIGS. 5A and 5B has a columnar shape and is provided with an annular thin area on the side wall 10 and is set in a standing posture.
However, the capsule CA-2 is not limited to a cylindrical shape, and may be, for example, a capsule CA-3 having a prismatic shape (here, a quadrangular prism (cuboid)) as shown in FIG. By using the prism, the posture in the storage space 204 can be stabilized. In this case, the thin area 10c is formed on the four side walls. Such a capsule CA-3 becomes front / rear / left / right side walls when arranged in the storage space 204 so that the axial direction and the side wall are parallel to each other. However, the present invention is not limited to this, and as shown in FIG. You may arrange | position in the storage space 204 as a standing attitude | position which makes it protrude to the side.
In addition, in order to stabilize the position of each capsule CA (CA-1, CA-2, CA-3) more reliably, the fibers used for the filter element are diverted as necessary in the storage space 204. The gap may be filled to prevent positional deviation. Further, a structure in which a positioning protrusion is added to the inner surface of the casing 201 and the capsule CA is pressed and positioned from the periphery by this protrusion may be employed. Thus, when the position of the capsule CA is stabilized, one or both of the first filter unit and the second filter unit are not necessarily required. In the above-described embodiment, the case where the space formed between the first filter portion and the second filter portion is used as the storage space in the filter main body portion is described. However, this is a preferred example and the form of the storage space is not limited to this.

Operation by a user (smoker) who smokes the cigarette CG with filter will be described. As shown by an arrow F in FIG. 1A, when a user pinches the center of the filter FL with a finger and applies an external force to crush it, the casing 201 of the filter FL and the capsule CA− 1 is elastically deformed. Since the capsule CA-1 is set to be easily broken, the capsule CA-1 can be easily broken and the liquid can flow out and be absorbed by the filter.
Thereafter, the user turns on the cigarette CG with a filter and smokes. The liquid can reduce water-soluble components contained in the smoke stream from the cigarette, and the flavor is improved by the added flavor.

In addition, this invention is not limited to embodiment mentioned above.
In the above-described embodiments, the case where the capsule-mounted filter according to the present invention is applied to a cigarette with a filter has been described. However, the capsule-mounted filter according to the present invention is not limited to the case where it is applied to the filter attached to the cigarette as described above. That is, you may comprise as a single filter product.

FL (FL-1, FL2) Filter CA (CA-1, CA-2, CA-3) Capsule CG Cigarette 10

Side wall

10a, 10b, 10c, 10d Thin area 10a Ring-shaped main thin area 10b Linear sub-thin wall Area 10c Linear main thin area 10d Annular sub-thin area 11 Front end wall 12 Rear end wall 100 Cigarette body 101 Chip paper 201

Casing

202, 203, 204 Filter body section 202 First filter section 203 Second filter section 204 Storage space

Claims

A side wall that forms a cylindrical side surface and a pair of end walls that close each of the front and rear openings of the cylindrical shape have liquid enclosed therein, and at least the side wall is elastically deformable, Capsule in which the side wall is provided with at least one ring-shaped main thin area provided along the circumferential direction, or at least one linear main thin area provided along the axial direction perpendicular to the circumferential direction. When,
A substantially cylindrical filter body formed including a storage space for storing the capsule,
The capsule is stored in the storage space so that the direction in which the ring-shaped main thin region or the linear main thin region extends and the radial direction of the filter main body are parallel to each other. A filter equipped with a capsule characterized by that.
The capsule is provided with a linear sub-thin area formed in a direction perpendicular to the main thin area when the ring-shaped main thin area is formed, or the main thin wall when the linear main thin area is formed. 2. A filter having a capsule mounted thereon according to claim 1, wherein a ring-shaped sub-thin area formed in a direction perpendicular to the area is provided.
The ring-shaped main thin region, linear sub-thin region, linear main thin region, and ring-shaped sub thin region are formed as a continuous region or a discontinuous region including a discontinuous portion, A filter having the capsule according to claim 1 or 2 mounted thereon.
The ring-shaped main thin area, the linear sub-thin area, the linear main thin area, and the ring-shaped sub-thin area are formed thinner than other areas as groove portions. A filter equipped with the capsule according to claim 1.
The filter equipped with the capsule according to any one of claims 1 to 4, wherein a casing covering the filter body is water-resistant.
The casing that covers the filter main body when the capsule is provided with the linear main thin region is formed of a transparent sheet material that makes the storage space visible. To 5. A filter having the capsule according to any one of 5 to 5.
A smoking article comprising a filter on which the capsule according to any one of claims 1 to 6 is mounted.