KR20180064457A - Filter for tobacco products - Google Patents

Abstract

A filter (4) for a cigarette article comprising a capsule (5) for accommodating contents to be supplied into a mouth.
The filter for cigarette articles according to claim 1, wherein the filter for cigarette articles comprises a suction section (S3) formed at the suction end, a cavity section (S2) which is provided at the front end of the suction end section and does not include a filter material, Wherein the capsule has an easy disruption portion (55) for releasing contents contained therein when the capsule is pressed, and a capsule is disposed in the cavity section in a posture in which the easy disruption portion faces the abutment end section And an inlet section 43a for guiding the contents discharged from the easy destruction section to the suction stage is formed in the inlet section section.

Description

{FILTER FOR TOBACCO PRODUCTS}

The present invention relates to a filter for tobacco articles.

BACKGROUND ART [0002] Techniques for disposing capsules containing liquid inside a filter for the purpose of eliminating discomfort in mouth during smoking or after smoking are known. For example, Patent Document 1 discloses a technique of embedding a capsule capable of being deformed by a force applied by a finger of a smoker into a filter material (plug), including a liquid therein, Thereby enabling the supply of the air into the mouth of the smoker through the opening formed in the suction end face of the filter.

Patent Document 1: International Publication No. 2013/178515 Patent Document 2: International Publication No. 2014/068295

However, in the technique described in Patent Document 1, since the capsules are embedded in the filter material, it can not be said that the suitability for manufacturing is high. SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for improving the manufacturability of a cigarette article filter having a capsule for containing contents to be supplied into the mouth.

In order to solve the above-mentioned problem, the filter for cigarette article according to the present invention is characterized in that it is provided with a cavity section (not shown) which is connected to the front end of the suction end section formed at the suction end, A capsule was arranged in a posture in which the easy breakage portion for releasing the contents contained therein was faced to the suction end section so that an inlet portion for guiding the contents discharged from the easy breakdown portion to the suction end was formed in the suction end section.

More specifically, the filter for cigarette articles according to the present invention comprises: a suction section section formed at the suction section; a cavity section provided at the front end of the suction section section and not including a filter material; And the cavity section has an easily broken portion for releasing the contents contained therein when the capsule is pressed, and the cavity section is provided with a cavity section so that the easy destruction section faces the suction section section Wherein the capsule is disposed in a prescribed posture and the inlet section section is provided with an introduction section for guiding the contents discharged from the easy destruction section to the inlet end.

According to the present invention, for example, after smoking, a user smokes a capsule by holding a cavity section of the filter with a finger through a tip paper and applying an external force to the capsule placed in the cavity section. At this time, since the easy break portion releasing the contents accommodated in the capsule is arranged in the posture defined so as to face the suction end section, the contents discharged from the easy breakout portion flow into the suction end section. Then, the contents released from the easy breakage portion can be guided to the suction port through the inlet portion in the suction end section, and the contents can be supplied into the mouth. Further, according to the filter of the present invention, the cavity section in which the capsules are arranged does not include the filter material. According to this, since it is not necessary to embed the capsule in the filter material, the manufacturing suitability of the filter can be improved as compared with the prior art.

Further, in the present invention, the capsule may have an outer diameter smaller than the inner diameter of the cavity section. Thereby, a channel of mainstream smoke can be formed on the outer peripheral side of the capsule in the cavity section. It is easy to manufacture a filter housing the capsule within the cavity section.

Further, in the present invention, the suction end section has a hollow channel which extends in the axial direction and circulates the contents discharged from the easy breakdown portion, and in the region other than the hollow channel, And the inlet portion may be formed by the hollow channel of the inlet forming member. With this configuration, the contents discharged from the easy-to-break portion of the capsule can be appropriately guided to the suction port through the hollow channel of the suction-forming member.

In addition, in the cavity section, the capsule may be supported on the support so that the easy destruction portion is opposed to the hollow channel. In this way, the capsule in the cavity section can be easily supported in a desired posture.

Further, in the present invention, the difference between the center position of the easy break portion and the center position of the hollow channel in the capsule may be 1 mm or less. According to this, the contents discharged from the easy disruption portion of the capsule can be efficiently introduced into the hollow channel, and a sufficient amount of contents can be supplied into the mouth through the hollow channel.

Further, in the present invention, the diameter of the hollow channel may be 1 mm or more. By such a constitution, the contents discharged from the easy disruption portion of the capsule are easily introduced into the hollow channel, and a sufficient amount of contents can be supplied into the mouth through the hollow channel.

In the present invention, the diameter of the capsule may be 50% or more of the inner diameter of the cavity section. The diameter of the capsule may be 85% or more of the inner diameter of the cavity section. This makes it possible to reduce the amount of difference between the center position of the easy disruption portion and the center position of the hollow channel in the capsule disposed in the cavity section, and the contents can be smoothly supplied to the mouth.

In the present invention, the length of the hollow channel may be 10 mm or less. By defining the length of the hollow channel in this manner, a sufficient amount of contents can be introduced into the mouth through the hollow channel, and the time required until the capsule is crushed and the contents are supplied into the mouth can be relatively shortened.

Further, in the present invention, the suction-forming member may be constituted by a filter material through which the hollow channel is formed in the axial direction.

Further, in the present invention, a plasticizer may be added to the filter material in an amount of 19 mass% or more based on the fiber mass forming the filter material. According to this, it is possible to reduce the occurrence of fluff on the inner peripheral surface of the hollow channel in the produced filter material, and to smoothly supply the contents into the mouth through the hollow channel.

In the present invention, a plasticizer may be added to the filter material, and a plasticizer having an inner circumferential region facing the hollow channel of the filter material may be added as compared with other regions. As described above, by locally increasing the addition amount of the plasticizer with respect to the inner peripheral region facing the hollow channel, it is possible to more effectively suppress the fluff of the fibers on the inner peripheral face of the hollow channel.

In the present invention, the axial length of the capsule may be shorter than the axial length of the cavity section. This makes it easier to manufacture a filter in which capsules are arranged in the cavity section. In this case, the difference between the axial length of the capsule and the axial length of the cavity section is preferably 5 mm or less. Thereby, the contents discharged from the capsule can smoothly flow into the hollow channel of the suction-forming member. In the present invention, the filling amount of the content in the capsule may be 50 mg or more. It is considered that a sufficient amount of contents can be supplied into the mouth by securing the amount of the contents contained in the capsule.

The means for solving the problems in the present invention can be employed in combination as much as possible.

According to the present invention, it is possible to provide a technique for improving the manufacturability of a cigarette article filter having a capsule for accommodating the contents to be supplied into the mouth.

1 is a perspective view of a cigarette according to a first embodiment of the present invention.
[Fig. 2] Fig. 2 is a view showing a schematic structure of a cigarette according to the first embodiment.
[Fig. 3] Fig. 3 is a view showing a capsule according to Embodiment 1. [Fig.
[Fig. 4] Fig. 4 is a view showing a filter according to the first embodiment.
[Fig. 5] Fig. 5 is a diagram showing the details of each LOT according to the first embodiment.
[Fig. 6] Fig. 6 is a view showing a cigarette according to a second embodiment.
[Fig. 7] Fig. 7 is a diagram showing the details of each LOT according to the second embodiment.
8 is a view showing details of LOTs 7 and 8 according to the second embodiment.
[Fig. 9] Fig. 9 is a view showing a schematic structure of a cigarette according to the second embodiment.
10 shows a cross section of the cavity section of the filter according to the second embodiment.
[Fig. 11] Fig. 11 is a view showing a modified example of the support according to the second embodiment.
[Fig. 12] Fig. 12 is a view showing a modification of the support according to the second embodiment.
[Fig. 13] Fig. 13 is a view showing a schematic structure of a cigarette according to the third embodiment.

Hereinafter, an embodiment of a cigarette filter according to the present invention will be described with reference to the drawings. In addition, the dimensions, materials, shapes, relative positions, and the like of the constituent elements described in the present embodiment are not intended to limit the technical scope of the invention to them unless otherwise specified.

≪ Embodiment 1 >

1 is a perspective view of a cigarette 1 according to a first embodiment. 2 is a view showing the schematic structure of the cigarette 1 according to the first embodiment. Fig. 2 is a sectional view showing a part of the cigarette 1. Fig.

The cigarette 1 has a cigarette wrap portion 2 and a filter 4 connected to one end of the cigarette wrap portion 2 through a tip paper 3. The cigarette wrapper 2 is to wrap the shredded cigarette 21 with a wrapper 22 and is formed into a columnar shape (rod shape).

The filter 4 is wrapped around the tip paper 3 and connected to the rear end side of the cigarette wrapper 2 through the tip paper 3. The tip paper 3 connects (connects) the end of the cigarette wrapper 2 and the filter 4 by integrally wrapping them. Hereinafter, in the longitudinal direction (axial direction) of the cigarette package 2, the end of the side connected to the filter 4 is referred to as a "rear end", and the end opposite thereto is referred to as "front end". The end of the filter 4 connected to the cigarette package 2 in the longitudinal direction (axial direction) is referred to as " front end ", and the end opposite to the front end is referred to as " rear end ". The rear end of the filter 4 forms a " suction end " to be smoked to the smoker during smoking. A cross section along the longitudinal direction (axial direction) of the cigarette 1 (the cigarette package section 2 and the filter 4) is defined as a "longitudinal section", and a cross section in a direction orthogonal thereto is defined as "cross section &Quot;

In the interior of the filter 4, the filter section S1, the cavity section S2 and the suction section S3 are arranged side by side in this order from the front end side. In the filter section S1, for example, a filter material 41 wrapped with a cellulose acetate fiber formed into a cylindrical shape by a wrapping paper (plug wrap) is provided. However, the filter material 41 is not limited to a fiber bundle of cellulose acetate, and various materials can be employed. For example, the filter material 41 may contain particles such as activated carbon or fragrance in the fibers.

(Hereinafter referred to as " CH filter material ") 43 formed with a center hole (CH) 43a along the axial direction is formed in the intake section section S3 . The center hole 43a is a through-hole passing through the center of the CH filter material 43, and corresponds to the hollow channel and the lead-in portion according to the present invention. The CH filter material 43 is formed, for example, by winding a fiber bundle of cellulose acetate by winding paper. In the present embodiment, the CH filter material 43 corresponds to the suction-forming member according to the present invention.

The filter material 41 and the CH filter material 43 are arranged apart from each other in the axial direction. The cavity section S2 is formed with a cavity 42 as a hollow section which is sandwiched between the filter material 41 and the CH filter material 43. [ The cavity 42 in the cavity section S2 is provided with a capsule 5 in which contents are enclosed. The filter material 41, the capsule 5, and the CH filter material 43 are integrally enclosed by a molding paper 44. The cavity section S2 is connected to the front end of the intake section S3 and is formed as a section that does not include a filter material. Further, the capsule 5 has an outer diameter smaller than the inner diameter of the cavity section S2. As a result, the main flow passage is formed on the outer peripheral side of the capsule 5 in the cavity section S2.

Fig. 3 is a view showing the capsule 5. Fig. The capsule 5 includes a substantially cylindrical capsule body 51, and the capsule body 51 is elastically deformable. The capsule body 51 is a bottomed cylindrical body made up of a front wall 53 and a peripheral wall 54 and has an opening end 52. The front wall 53 closes one side of the peripheral wall 54. The capsule body 51 is obtained, for example, by injection molding a synthetic resin. Hereinafter, the axial direction of the capsule body 51 having a cylindrical shape is referred to as the axial direction of the capsule 5.

The capsule 5 has a size that can be disposed in a cylindrical cavity 42 secured in the cavity section S2. The filter 4 according to the present embodiment is configured such that the length along the axial direction of the capsule 5 disposed in the cavity section S2 (cavity 42) (hereinafter also referred to as the " axial length & Is shorter than the length (axial length) along the axial direction of the section S2. In this case, the difference between the axial length of the cavity section S2 (cavity 42) and the axial length of the capsule 5 is preferably 5 mm or less. The outer diameter of the capsule 5 is set to be smaller than the inner diameter of the cavity section S2 by several hundreds of micrometers to several millimeters. The inner diameter of the cavity section S2 refers to the inner diameter (outer diameter of the filter material 41 and the CH filter material 43) of the formed paper 44 covering the outer periphery of the cavity 42. [ The main flow passage can be formed on the outer circumferential side of the capsule 5 in the cavity section S2 because the capsule 5 has the size described above with respect to the cavity 42. [ In addition, by making the outer diameter of the capsule 5 smaller than the inner diameter of the cavity section S2, it is easy to manufacture the filter 4 containing the capsule 5 in the cavity 42, The position and direction of the capsule 5 in the cavity 42 are also stabilized.

A detailed description of the capsule 5 will be given below. In the center portion of the front wall 53 of the capsule body 51, the easy disruption portion 55 thinner than other portions is formed. In this embodiment, the easy destruction portion 55 has a circular shape, and its thickness is, for example, 0.1 mm or more and less than 0.2 mm. A rod-shaped projection 56 is formed at the center of the easy-to-break portion 55. The projection 56 protrudes toward the outside of the capsule body 51. [ The diameter of the protrusion 56 is, for example, about 0.5 to 0.6 mm, and the protrusion length is about 0.8 mm, for example.

The opening end 52 of the capsule body 51 is closed in a liquid-tight manner by the seal member 57. The seal member 57 is a flexible sheet and is bonded to the end face of the peripheral wall 54 without hindering the elastic deformation of the capsule body 51. The seal member 57 is bonded to the peripheral wall 54, for example, by a heat seal. However, the shape of the capsule body 51, the method of bonding the capsule body 51 and the seal member 57, and the like can be appropriately changed.

The capsule body 51 and the seal member 57 described above form the capsule 5, and the capsule 5 accommodates the contents therein. In the present embodiment, as the contents contained in the capsule 5, an aqueous solution (hereinafter referred to as " perfume solution ") in which additives such as perfume are dissolved in distilled water is employed. The content contained in the capsule 5 may be a single substance or a mixture of, for example, water, cooking oil, edible seasoning, edible flavor, mouthwash, or the like. The state of the contents may be liquid, gas or solid. When the solid is the content, it may be suspended in a liquid after being processed into a powder.

In this embodiment, the capsule 5 is placed in the cavity (not shown) in a posture defined so as to face the easy-to-break portion 55 to the front end face of the CH filter material 43 disposed in the suction end section S3 42). More specifically, the capsule 5 is disposed in the cavity 42 with the easy break portion 55 opposed to the center hole 43a of the CH filter material 43.

According to the cigarette 1 configured as described above, for example, after smoking, the user (smoker) picks up the cavity section S2 of the filter 4 with the fingers through the tip paper 3, S2 can be applied to the capsule 5 from the radial direction of the capsule 5. [ Such an external force is accompanied by an elastic deformation of the capsule body 51, thereby crushing the capsule 5. As a result, the internal pressure of the capsule 5 increases.

Here, the rise of the inner pressure of the capsule 5 causes the front wall 53 to bulge outwardly, while elastically deforming the peripheral wall 54 to extend toward the outer periphery. Such an elastic deformation pulls the easy breakage portion 55 toward the radially outward side with respect to the projection 56. [ As a result, the specific portion adjacent to the root of the projection 56 of the easy destruction portion 55 is particularly increased and the thickness of the specific portion is greatly reduced. As a result, the easy destruction portion 55 It is broken. In this case, the projection 56 becomes a trigger when the easy destructive portion 55 is broken, thereby facilitating the breakage of the easy destructive portion 55 as a thin-walled region, And serves to determine the break position. That is, when the capsule 5 is broken, first, the perfume liquid contained in the capsule 5 from the projection 56 located at the center of the easy destruction portion 55 is sprayed toward the front of the front wall 53 .

The breakage of the capsule 5 through the fingers, that is, the release of the fragrance liquid, is prevented by the finger from being damaged due to the sudden drop of the internal pressure of the capsule 5 when the easy breakage portion 55 of the capsule 5 is once broken. Can be detected. The fragrance liquid in the capsule body 51 is discharged from the easy breakage portion 55 to the center hole of the CH filter material 43 after the breakage of the easy breakage portion 55 43a.

The filter 4 according to the present embodiment is configured such that the difference between the center position of the easy break portion 55 in the capsule 5 and the center position of the center hole 43a in the CH filter material 43 is 1 mm or less. The fragrance liquid discharged by scattering from the easy breakdown portion 55 of the capsule 5 flows into the center hole 43a from the front end side of the CH filter material 43. [ The perfume liquid flowing into the center hole 43a is introduced into the mouth of the user from the suction port through the center hole 43a. The user feels the discomfort in the mouth by keeping the mouth of the perfume liquid in the mouth during smoking or after smoking. In the transverse section of the CH filter material 43, the area excluding the hollow center hole 43a occupies the filter fibers, thereby regulating the flow of the perfume liquid discharged from the capsule 5.

According to the filter 4 of the present embodiment, the filter section (filter material) is not included in the cavity section S2 in which the capsule 5 is disposed. According to this, since it is not necessary to embed the capsule 5 in the filter material in the process of manufacturing the filter 4, there is an advantage that the filter 4 is very excellent in manufacturing suitability. In the cigarette 1 of the present embodiment, the timing of releasing the perfume liquid from the capsule 5 of the filter 4 is arbitrary. The user presses the capsule 5 against the capsule 5 at an appropriate timing during smoking, after smoking, or before smoking, and the capsule 5 is smashed to remove the fragrance liquid from the easy disruption part 55 to the center hole (43a), and the perfume solution can be put into the mouth through the center hole (43a).

Next, in the filter 4 of the present embodiment, when the capsules 5 arranged in the cavity section S2 (cavity 42) are crushed, the fragrance liquid scattered from the easy breakage section 55 is fully orally Various parameters that are advantageous for introduction into the plasma display panel will be described. First, the capsule 5 of the present embodiment contains 50 mg or more of perfume solution. The fragrance liquid discharged from the easy disruption portion 55 of the capsule 5 can be sufficiently supplied into the oral cavity by securing the filling amount of the perfume liquid contained in the capsule 5 to this extent.

The diameter of the center hole 43a (hollow channel) of the CH filter material 43 is preferably 1 mm or more. If the diameter of the center hole 43a is too small, the fragrance liquid discharged from the easy breakage portion 55 of the capsule 5 may become difficult to flow through the center hole 43a, The perfume liquid easily flows into the center hole 43a.

If the length of the center hole 43a (hollow channel) of the CH filter material 43 is too long, the time required until the perfume liquid flowing from the front end of the center hole 43a reaches the suction end is excessively And the space volume of the center hole 43a becomes large, so that the perfume solution remains in the center hole 43a, and the amount of the perfume solution introduced into the mouth tends to become insufficient. Therefore, the length of the center hole 43a (hollow channel) of the CH filter material 43 is preferably 10 mm or less. By defining the length of the center hole 43a (hollow channel) in this manner, it becomes easy to sufficiently supply the perfume liquid into the mouth through the center hole 43a. Further, when the capsule 5 is crushed, It is possible to shorten the time required for the operation to be performed.

The center position of the center of the easy-to-break portion 55 (the position where the projection 36 is formed) of the capsule 5 and the center hole 43a (hollow channel) of the CH filter material 43 The difference is preferably 1 mm or less. The central position of the easy destruction portion 55 means the center position of the easy destruction portion 55 in the cross section of the filter 4. [ Likewise, the center position of the center hole 43a (hollow channel) means the center position of the center hole 43a in the transverse section of the filter 4. The amount of difference between the center position of the easy disruptive portion 55 in the capsule 5 and the center position of the center hole 43a in the CH filter material 43 (hereinafter referred to as " , It is possible to flow more fragrance liquid scattered from the broken easiness breakage portion 55 into the center hole 43a by decreasing the "center difference amount").

In the present embodiment, the diameter of the capsule 5 (capsule body 51) is smaller than the diameter of the cavity section S2 because the axial center of the capsule 5 is coaxial with the center of the easy- The center position of the easy breakage portion 55 and the center position of the center hole 43a substantially coincide with each other in the cross section of the filter 4 when the inner diameter of the cavity portion 42 (cavity 42) On the other hand, when the diameter ratio of the capsule 5 to the inner diameter of the cavity section S2 (cavity 42) (hereinafter also referred to as " capsule diameter ratio ") is small, The position deviates from the center position of the center hole 43a, and the center difference amount increases as the capsule diameter ratio becomes smaller. Therefore, from the viewpoint of suppressing the center difference amount between the easy break portion 55 in the capsule 5 and the center hole 43a in the CH filter material 43 from being increased, the capsule diameter ratio is set to be large It is desirable to do so.

Therefore, in the present embodiment, it is preferable that the diameter of the capsule 5 is 50% or more of the inner diameter of the cavity section S2 (cavity 42). The center hole 43a of the CH filter material 43 and the front wall 53 of the capsule 5 are overlapped with each other in the cross section of the filter 4 by setting the diameter of the capsule 5 in this way, The fragrance liquid discharged from the capsule 5 can easily flow into the center hole 43a of the CH filter material 43 when the user masks the capsule 5. [

For example, when the diameter of the filter 4 is 7.8 mm and the diameter of the center hole 43a of the CH filter material 43 is 1 mm, the diameter of the capsule 5 is about 5.8 mm The central difference amount between the easy break portion 55 in the capsule 5 and the center hole 43a in the CH filter material 43 can be set to 1 mm or less. Therefore, it is more preferable that the diameter of the capsule 5 is 75% or more of the inner diameter of the cavity section S2 (cavity 42).

For example, when the diameter of the filter 4 is 7.8 mm and the diameter of the center hole 43a of the CH filter material 43 is 1 mm, the diameter of the capsule 5 is about 6.8 mm The center position of the easy break portion 55 in the capsule 5 can be polymerized in the transverse section of the filter 4 with respect to the center hole 43a of the CH filter material 43. [ Therefore, it is particularly preferable that the diameter of the capsule 5 is 85% or more of the inner diameter of the cavity section S2 (cavity 42).

In the above case, the lower limit values for the capsule diameter ratio are shown stepwise as 50%, 75%, and 85% based on the case where the diameter of the center hole 43a is 1 mm. However, Under the same condition, the larger the diameter of the center hole 43a, the larger the wrap area in which the easy breakage portion 55 of the capsule 5 and the center hole 43a overlap in the transverse section of the filter 4, The fragrant liquid scattered from the easy breakage portion 55 of the capsule 5 is more likely to flow into the center hole 43a.

When the capsule diameter ratio is 100%, the outer diameter of the capsule body 51 in the capsule 5 is larger than the inner diameter of the cavity section S2 (more specifically, (The inner diameter of the molding paper 44 defining the space of the mold 42). The diameter of the capsule 5 with respect to the inner diameter of the cavity section S2 (cavity 42) can be increased by setting the outer diameter of the capsule 5 to be smaller than the inner diameter of the cavity section S2 The outer peripheral side of the capsule 5 disposed in the cavity section S2 and more specifically the outer peripheral side of the peripheral wall 54 of the capsule body 51 and the molded paper 44 And the inner circumferential surface of the main flow passage. Here, it is preferable that the diameter ratio (capsule diameter ratio) of the capsule 5 to the inner diameter of the cavity section S2 (cavity 42) is 95% or less. By defining the upper limit value of the capsule diameter ratio in this way, excessive increase in the resistance of the mainstream smoke passing through the outer peripheral portion of the capsule 5 disposed in the cavity section S2 can be suppressed and the mainstream smoke can be smoothly You can distribute it.

Incidentally, in the present embodiment, in the step of manufacturing the CH filter material 43, a liquid plasticizer such as a cellulose acetate fiber, such as tau triacetin, is added by a roll transfer method, a spray method, or the like. The plasticizer contributes to collecting the tow of the cellulose acetate fiber and shaping it into a cylindrical shape. Thus, in the present embodiment, a plasticizer of 19 mass% or more of the fiber mass forming the CH filter material 43 is added to the fibers. By setting the addition amount of the plasticizer at the time of production of the CH filter material 43 as described above, it is possible to reduce the occurrence of fluff of the fibers on the inner peripheral surface of the center hole 43a in the produced CH filter material 43 have. In this case, it is preferable that the inner peripheral region facing the center hole 43a (hollow channel) of the CH filter material 43 is added with a relatively larger amount of plasticizer than the other regions, It is possible to further effectively suppress the fluff formation of the fibers on the inner peripheral surface.

In the present embodiment, the length of the capsule 5 in the axial direction is shorter than the axial length of the cavity section S2. Therefore, in the cavity 42, Making it easier to manufacture. Since the difference between the axial length of the cavity section S2 (cavity 42) and the axial length of the capsule 5 is 5 mm or less, the perfume solution discharged from the capsule 5 can be smoothly flowed into CH And can be introduced into the center hole 43a (hollow channel) of the filter material 43 as well.

<Examples>

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the description of the following examples without departing from the gist thereof.

[Example 1]

4 is a view showing a filter according to the first embodiment. 5 is a diagram showing the details of each LOT according to the first embodiment. A filter material produced by using a conventional monoacetate filter (AF), a cavity portion with a length of 10 mm, and a center hole filter (CH filter) were arranged from the front end side, Manufactured by Tamura Chemical Co., Ltd.), thereby producing a triple cavity filter having a total length of 30 mm. In the cavity portion, a water capsule for accommodating water therein was disposed. The center hole filter used in the examples was set to two levels of 5 mm or 15 mm and the monoacetate filter (AF) was adjusted to 15 mm or 5 mm so that the total length of the triple cavity filter was 30 mm.

In the test method, a rheometer (manufactured by Mitsubishi Scientific Co., Ltd., product number: CR-3000EX) is set so that the cavity portion of the manufactured triple cavity filter is collapsed, and a tray is arranged on the suction end side. Then, the rheometer was crushed with the water capsules placed in the cavity portion under the test conditions of a clearance of 1.0 mm and a moving speed of 20 mm / min, and the water scattered at that time was taken into a tray, From the weight difference of the tray, the amount of liquid scattered was calculated. The number of samples n for each LOT shown in Fig. 5 is three, and the average value is hereinafter referred to as &quot; scattered content liquid amount &quot;.

5, the parameters of each LOT are the length of the center hole (hereinafter referred to as "CH length") and the length of the mono acetate filter AF (hereinafter, referred to as "AF length") in the center hole filter ) And the diameter of the center hole (hereinafter, referred to as &quot; CH diameter &quot;). The lengths of the cavity portions (hereinafter referred to as &quot; cavity lengths &quot;) and the lengths of the water capsules (hereinafter referred to as &quot; capsule lengths &quot;) were set to 10 mm and 8 mm, respectively, for all LOTs in common. In addition, the amount of water filled in the water capsules was 130 mg in total for all LOTs. As shown in the test results in Fig. 5, it was proved that the liquid content of the scattered contents was sufficiently secured by securing the CH diameter to 1 mm or more. That is, it has been found that the water discharged from the water capsule is sufficiently supplied to the suction end through the center hole of the center hole filter. On the whole, it was confirmed that the larger the CH diameter of the center hole filter and the shorter the CH length, the more the liquid content of the scattered contents increased.

[Example 2]

6 is a view showing the cigarette according to the second embodiment. 7 is a diagram showing the details of each LOT according to the second embodiment. The cigarette according to Example 2 was produced by removing the filter from a commercially available cigarette and replacing it with the filter shown in Fig. In the LOTs 7 to 9 of Example 2, the AF length was 8 mm, the capsule length was 14 mm, the cavity length was 15 mm, the CH diameter of the center hole filter was 2 mm, and the filling amount of the water capsules was 310 mg. Further, the target additive ratios of the plasticizers to be added to the filter fibers of the center hole filter were set as parameters and different from each other in the LOT.

The addition ratio of the plasticizer is the mass ratio of the plasticizer to the filter fiber mass of the center hole filter. In LOT7 and LOT8, the target addition ratio of the plasticizer was set to 19%, and the LOT9 was set to the target addition ratio of the plasticizer to 10%. In LOT8, a plasticizer equivalent to 19% by weight of the filter fiber mass was equally added to the filter fiber in the manufacturing process of the center hole filter, while LOT7 had a mass corresponding to 17% by mass of the filter fiber The plasticizer was added to the filter fiber equally, and a plasticizer with a mass corresponding to 2% by mass of the filter fiber was added locally to the region corresponding to the inner circumferential surface of the center hole (similarly, addition 17% + local addition 2%). .

8 shows the actual plasticizer addition rate and the actual cross-sectional area of the center hole (hereinafter referred to as &quot; CH cross-sectional area &quot;) with respect to LOT7 and LOT8. The actual plasticizer addition rate was calculated by calculating the plasticizer mass in the center hole filter using gas chromatography (manufactured by SHIMAZU, product number: GC-2010 Plus) and dividing the mass by the filter fiber mass of the center hole filter.

In the test method, the water capsule disposed in the cavity portion of the manufactured triple cavity filter was crushed by hand, and the water scattered at that time was taken out to the tray, and the amount of liquid scattered from the weight difference of the tray before and after breaking the water capsule Respectively. Further, as in the second embodiment, the number of samples n for each LOT is set to three.

As shown in Fig. 7, LOT7, 8 in which the target additive ratio of the plasticizer was set to 19 mass%, compared with LOT9 in which the target additive ratio of the plasticizer was set at 10 mass%, was large in the amount of scattered content liquid. The larger the amount of the plasticizer to be added to the filter fiber, the less the occurrence of fluff on the inner circumferential surface of the center hole, and the larger the amount of scattered liquid is believed to be. As can be seen from Fig. 8, the results of LOT7 in which the plasticizer was locally added to the inner circumferential surface of the center hole were larger than those in LOT8, regardless of the fact that the actual plasticizer addition rate was the same for LOT7 and LOT8. This is considered to be due to the fact that LOT7 in comparison with LOT8 reduced fluff generation on the inner circumferential surface of the center hole. As a result, the area of CH cross section of LOT7 is larger than that of LOT8, and it is considered that more liquid amount of scattered content of LOT7 is secured. 8, the cross-sectional area of the center hole was checked at 20 times and 50 times using a digital microscope (product of Keyence, product number: VHX-2000), and LOT7 was compared with LOT8, I was able to confirm that there were few occurrences.

&Lt; Embodiment 2 >

Next, the filter 4A according to the second embodiment will be described. Fig. 9 is a view showing a schematic structure of the cigarette 1A according to the second embodiment. The filter 4A provided in the cigarette 1A is structured such that the capsule 5 disposed in the cavity 42 of the cavity section S2 is supported by the support 6 (in the illustrated example, the first support 6a and the second (The support body 6b), which is different from the filter 4 according to the first embodiment. The supporting body 6 (the first supporting body 6a and the second supporting body 6b) is a ring member having a notch portion disposed along the inner peripheral surface of the formed paper 44 covering the outer periphery of the cavity 42 .

Fig. 10 shows a cross section of the filter section 4A according to the second embodiment in the cavity section S2. 10 shows a cross section of a position of the cavity section S2 through the support 6. In Fig. The support 6 is a C-shaped ring member having a cutout-shaped hollow passage 61. The support 6 has an inner diameter equal to the outer diameter of the capsule body 51 in the capsule 5 and is fitted in the peripheral wall 54 of the capsule 5 as shown in Fig. The support 6 has an outer diameter equal to the inner diameter of the formed paper 44 and is positioned along the inner peripheral surface of the formed paper 44 in a state of supporting the capsule 5.

The hollow flow path 61 of the support 6 flows through the filter material 41 disposed in the filter section S1 to flow the main flow flowing into the cavity 42 of the cavity section S2 . Since the front region and the rear region of the support body 6 in the cavity 42 communicate with each other by the hollow flow channel 61 of the support body 6, the main flow of the mainstream flows into the cavity 42 through the hollow flow channel 61 It is possible to smoothly flow toward the downstream side. The capsule 5 disposed in the cavity 42 is supported by the support 6 (in the illustrated example, the first support 6a and the second support 6b) The center axis of the filter 4 is disposed coaxially with the center axis of the filter 4. As a result, the easy-to-break portion 55 of the capsule 5 can be opposed to the center hole 43a (hollow channel) of the CH filter material 43. [ More specifically, the center position of the easy disruptive portion 55 in the capsule 5 can be made coincident with the center position of the center hole 43a in the CH filter material 43, The fragrance liquid scattered from the fragile portion 55 of the easy-to-reach portion can be smoothly introduced into the center hole 43a.

The shape and detailed structure of the support 6 for supporting the capsule 5 in the cavity section S2 (cavity 42) can be changed as appropriate. For example, as with the modification shown in Figs. 11 and 12, various changes can be made to the details of the support 6. Fig. In Fig. 11 and Fig. 12, illustration of the formed paper 44 and the tip paper 3 of the filter 4 is omitted. 11 has an O-shaped outer peripheral ring 60 and a plurality of support protrusions 62 projecting toward the inner peripheral side of the outer peripheral ring 60 to support the outer peripheral surface of the capsule 5, A hollow flow path 61 is formed between the projections 62. The supporting body 6 shown in Fig. 12 has a plurality of hollow flow passages 61 formed as through holes in the O-shaped outer peripheral ring 60, and the inner peripheral surface of the outer peripheral ring 60 forms the capsule 5, As shown in Fig.

In the above embodiments, the center hole 43a of the CH filter material 43 is formed as a hollow channel having a circular cross section, but the shape of the hollow channel is not particularly limited. The center hole 43a of the CH filter material 43 may be disposed eccentrically from the center of the CH filter material 43 in the transverse section. In the above embodiments, the filter section S1 having the filter material 41 is provided at the front end of the cavity section S2, but the filter section S1 is not necessarily provided.

&Lt; Embodiment 3 >

13 is a view showing the schematic structure of the cigarette 1B according to the third embodiment. The filter 4B provided in the cigarette 1B differs from the filters 4 and 4A described above in the structure of the intake section S3. The filter 4B is constituted as a so-called recess filter and the inlet section 7 of the hollow section is formed instead of the CH filter material 43 in the inlet section S3. A boundary between the cavity section S2 and the intake section S3 in the filter 4B is provided with a movement suppressing member 8 for suppressing the movement of the capsule 5 in the intake section S3 ). The movement restraining member 8 is provided with a restricting portion 81 for restraining the escape of the capsule 5 and a fragrance sprayed from the easy disruption portion 55 of the capsule 5 when the capsule 5 is broken by the user And a lattice-shaped or mesh-shaped flow-permitting portion 82 for allowing the liquid to flow into the liquid-absorbing-end section S3. The capsule 5 is sandwiched between the restricting portion 81 of the movement restraining member 8 and the filter material 41 and as a result the movement of the capsule 5 in the suction end section S3 is suppressed.

According to the filter 4B of the present embodiment, when the user pushes the capsule 5, the fragrance liquid discharged from the easy breakage portion 55 passes through the flow permission portion 82 of the movement restraining member 8 And is guided to the suction port (mouth) through the inlet portion 7 of the suction port section S3.

While the preferred embodiments of the present invention have been described above, those skilled in the art will appreciate that various modifications, improvements, combinations, and the like of the filter for cigarette according to the present invention are possible.

One… Cigarette
2… Tobacco
3 ... Tip Paper
4… filter
5 ... capsule
6 ... Support
7 ... Introduction
8… Movement restraining member

Claims (15)

An inlet section formed at the inlet end,
A cavity section that is provided at a front end of the suction end section and does not include a filter material, the cavity section including a capsule containing contents therein,
And,
Wherein the capsule has an easy disruption portion for releasing contents contained therein when the capsule is pressed,
Wherein the cavity section is provided with the capsule in a posture such that the easy destruction section faces the suction section section,
Wherein the suction end section is provided with an introduction section for guiding the contents discharged from the easy destruction section to the suction end,
Filters for tobacco articles. The method according to claim 1,
Wherein the capsule has an outer diameter smaller than an inner diameter of the cavity section,
Filters for tobacco articles. The method according to claim 1 or 2,
The absorption section section is provided with an absorption forming member which extends in the axial direction and which has a hollow channel for circulating the contents discharged from the easy destruction section and regulates the flow of the contents in a region other than the hollow channel ,
And the inlet portion is formed by the hollow channel of the suction-
Filters for tobacco articles. The method of claim 3,
Wherein the capsule is supported on a support so that the easy destruction portion is opposed to the hollow channel,
Filters for tobacco articles. The method according to claim 3 or 4,
Wherein a difference between a center position of the easy break portion and a center position of the hollow channel in the capsule is 1 mm or less,
Filters for tobacco articles. The method according to any one of claims 3 to 5,
Wherein the diameter of the hollow channel is 1 mm or more,
Filters for tobacco articles. The method according to any one of claims 3 to 6,
Wherein the diameter of the capsule is 50% or more of the inner diameter of the cavity section,
Filters for tobacco articles. The method of claim 7,
Wherein the diameter of the capsule is at least 85% of the inner diameter of the cavity section,
Filters for tobacco articles. The method according to any one of claims 3 to 8,
Wherein the suction-forming member has a hollow channel having a length of 10 mm or less,
Filters for tobacco articles. The method according to any one of claims 3 to 9,
Wherein the suction-forming member is constituted by a filter material through which the hollow channel is formed in the axial direction,
Filters for tobacco articles. The method of claim 10,
Wherein the filter material contains a plasticizer in an amount of 19 mass% or more based on the fiber mass forming the filter material,
Filters for tobacco articles. 12. The method according to claim 10 or 11,
Wherein a plasticizer is added to the filter material and a plasticizer having a relatively larger inner peripheral region facing the hollow channel than the other regions of the filter material is added,
Filters for tobacco articles. The method according to any one of claims 3 to 12,
Wherein the axial length of the capsule is shorter than the axial length of the cavity section,
Filters for tobacco articles. 14. The method of claim 13,
Wherein a difference between an axial length of the capsule and an axial length of the cavity section is 5 mm or less,
Filters for tobacco articles. The method according to any one of claims 1 to 14,
Wherein the filling amount of the content in the capsule is 50 mg or more,
Filters for tobacco articles.

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