JP2004248570A - Ventilation-type filer cigarette and system for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a ventilation-type filter cigarette in which reduction in a Vf value for regulating the amounts of nicotine and tar in smoke caused by a holding manner in smoking is prevented and to provide a system for producing the same. <P>SOLUTION: The outer periphery of a web 20 and wrapping paper 18 is doubly wound with one piece of chip paper 22 to form double cylindrical structure by an inside region 24 and an outside region 26. A plurality of vent holes 28 are bored in the peripheral direction in two lines through the inside region 24. A space between the inside region 24 and the outside region 26 at a mouthpiece side is stuck fast through a paste layer 30. An outside ring-shaped chamber 38 is arranged between the inside region 24 and the outside region 26 of regions with the bored vent holes 28. An air route 40 communicating with the vent holes 28 through the outside ring-shaped chamber 38 is formed by a paste layer 36 intervening in a stripe state between the inside region 24 and the outside region 26 at the cigarette side. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ventilated filter cigarette and a system for producing the same.
[0002]
[Prior art]
2. Description of the Related Art In recent years, in order to reduce the amount of smoke components flowing out from a filter suction end, a vent filter cigarette having a large number of vent holes formed in a tip paper wound around an outer periphery of a filter has been widely used. In such a ventilated filter cigarette, when tobacco smoke is introduced into the mouth of a smoker through the filter, air flows into the filter from the vent at the same time, so that the amount of smoke component is diluted.
[0003]
For example, in Japanese Patent No. 3194580, in order to reduce the variation of the air inflow amount (filter ventilation) Vf from the ventilation hole provided in the filter portion of the ventilation type filter cigarette, a chip paper and a filter around the ventilation hole are used. For example, it has been proposed to form, for example, a grid-shaped embossment between the filters and to separate the ventilation hole from the filter by the unevenness. This is because the variation in the Vf value is considered to be caused by the adhesion between the filter and the tip paper and affected by the degree of the adhesion.
[0004]
Further, Japanese Patent Application Laid-Open No. 4-281779 proposes that a perforated band be provided in two areas on the suction side and the rod side of the pre-attached paper surrounding the filter portion. Here, air flowing from one suction side perforated band is introduced directly into the mouth of a smoker through a groove of a tubular extruded product provided with a groove provided between a filter and a pre-fitting paper, and the other rod is provided. Air entering from the side perforation zone is introduced into the smoker's mouth along with tobacco smoke through the interior of the filter.
[0005]
[Patent Document 1]
Patent No. 3194580
[Patent Document 2]
JP-A-4-281779
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a ventilation type filter cigarette and a system for manufacturing the filter cigarette, which can prevent a decrease in the amount of inflow of dilution air (Vf value) from the filter due to the way of holding the filter cigarette during smoking. With the goal.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a ventilated filter cigarette according to the present invention (Claim 1) includes a cigarette roll in which a cut of cigarette is wound by a wrapping paper, and a cylinder disposed adjacent to one end of the cigarette roll. A filter, a connecting pipe member that covers the outer periphery of the filter and at least one end of the cigarette winding and connects the filter and the cigarette winding to each other, and an inlet at an end face of the connecting pipe member located at the other end of the cigarette winding. And an air introduction path for introducing air into the filter from the inlet, wherein the air introduction path is formed inside the connection pipe member and at one of between the filter and the connection pipe member, and surrounds the outside of the filter. In addition, it has an annular chamber in which the flow of air is ensured in the filter, and an air passage extending in the axial direction of the filter and communicating between the annular chamber and the inlet.
[0008]
In the above-mentioned vented filter cigarette, the outside of the filter is surrounded by the inside of the connecting pipe member that covers the outer periphery of the filter and at least one end of the tobacco cigarette and between the filter and the connecting pipe member. Air chamber, and an air introduction path extending in the axial direction of the filter and having an air passage communicating between the annular chamber and the inlet. In this case, the annular chamber and the air passage are not blocked, and the outside air flows into the filter through the air passage and the annular chamber. Therefore, a decrease in the Vf value that defines the amounts of nicotine and tar in the smoke is prevented.
[0009]
Here, the connection pipe member secures a gap between the filter paper and the tip paper doubly wound around the outer periphery of one end of the cigarette roll, and an inner tip paper portion and an outer tip paper portion of the tip paper, A gap providing means for forming an annular chamber and an air passage, and formed on the inner tip paper portion at a predetermined interval in a circumferential direction thereof, one end opening communicating with the annular chamber and the other end opening on the outer peripheral surface of the filter. It is preferable to include a plurality of facing air holes (claim 2). Note that the inner and outer tip paper portions may be connected integrally (claim 3) or may be separate bodies (claim 4).
[0010]
Further, the connecting pipe member includes a tip paper wound around the outer periphery of one end of the filter and the cigarette roll, and a gap providing means for securing a gap between the tip paper and the filter to form an annular chamber and an air passage. Preferably, the air introduction path is formed on the outer peripheral surface of the filter at a predetermined interval in the circumferential direction of the annular chamber, and further includes a plurality of ventilation holes opened toward the annular chamber. 5).
[0011]
Preferably, the gap applying means includes at least one of an embossed surface and a glue layer formed partially on the tip paper (claim 6).
The connecting pipe member is a filter and a tip paper wound around one end of the cigarette roll, and a hard suction port surrounding the outside of the tip paper and securing an annular chamber and an air passage between the tip paper and the tip paper. It is also preferable that the cap and the tip paper are formed at predetermined intervals in a circumferential direction thereof, and include a plurality of ventilation holes having one end opening communicating with the annular chamber and the other end opening facing the outer peripheral surface of the filter. (Claim 7).
[0012]
Further, the system for producing a ventilated filter cigarette according to the present invention (Claim 8) forms an assembly in which a cylindrical filter is brought into close contact between two cigarette rolls each having a cut of cigarette wound by a wrapping paper. While supplying the assembly to the winding section, supplying the tip paper having the ventilation hole according to claim 2 to the winding section, winding the tip paper around the assembly at the winding section to form a double filter cigarette, and thereafter, In the manufacturing system for manufacturing the individual filter cigarettes by cutting the double filter cigarette into equal parts, the filter paper is provided in the supply path of the chip paper, and in order to secure the gap of claim 2, the chip paper has at least the embossed surface and the adhesive layer. It is characterized by including an additional device for forming one.
[0013]
Here, the winding section may be configured to wind one piece of tip paper doubly (claim 9), two supply paths for supplying chip paper, and supply from these supply paths. And two winding portions for sequentially winding the tip paper.
Further, in the ventilation type filter cigarette manufacturing system according to the present invention (claim 11), the cylindrical filter having the ventilation hole according to claim 5 is closely adhered between two cigarette rolls in which the cuts of tobacco are wound by wrapping paper. Forming the assembly, supplying the assembly to the winding portion, supplying the tip paper to the winding portion, winding the tip paper around the assembly at the winding portion to form a double filter cigarette, In the manufacturing system for manufacturing the individual filter cigarettes by cutting the double filter cigarette into equal parts, the double filter cigarette is provided in the supply path of the chip paper, and the chip paper is provided with the embossed surface and the adhesive layer in order to secure the gap of claim 5. It is characterized by including an additional device forming at least one.
[0014]
In the above-mentioned system for manufacturing a ventilated filter cigarette, each of the tip papers includes an additional device for forming at least one of an embossed surface and a glue layer, so that a gap for forming an annular chamber and an air passage is secured. The ventilation type filter cigarettes according to 2 to 5 are easily manufactured.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the same reference numerals are given to the common members and parts in each embodiment and the modified example, and the repeated description is omitted.
(1st Embodiment)
As shown in FIGS. 1 and 2, the ventilation type filter cigarette 10 includes a cigarette roll 12 and a cylindrical filter 14 arranged adjacent to one end of the cigarette roll 12. The cigarette roll 12 has a cylindrical shape in which a notch 16 of cigarette is wound by a wrapping paper 18. The filter 14 also has a columnar shape made of a fiber filtering material such as cellulose diacetate, and a wrapping paper 20 having high air permeability is wound therearound. However, when the outer peripheral surface of the filter is a non-wrap filter formed by thermoforming, the web 20 is not used.
[0016]
As shown in FIG. 3, one tip paper 22 constituting the connecting pipe member is wound twice around the outer circumference of the filter 14 and the outer circumference of one end of the tobacco scroll 12, thereby forming the filter 14 and the tobacco scroll. 12 are mutually connected. That is, the tip paper 22 has a length that is about twice as long as a normal case, that is, a length corresponding to two turns of the filter 14 (the cigarette roll 12). Here, of the tip paper 22, a portion in contact with the wrapping paper 20 and the wrapping paper 18 is referred to as an inner region 24 as an inner tip paper portion, and a portion exposed to the outside is referred to as an outer region 26 as an outer tip paper portion. Thus, a double cylindrical structure is formed by the inner region 24 and the outer region 26.
[0017]
In the inner region 24, a plurality of ventilation holes 28 reaching the web 20 are formed, for example, in two rows along the circumferential direction. Further, a glue layer 30 as an adhesive member is formed on the inner surface of the inner region 24, whereby the inner region 24 is bonded to the web 20 of the filter 14 via the glue layer 30. The glue layer 30 forms an inner annular chamber 32 between the inner region 24 and the filter 14, in which the perforated row of vents 28 is located. That is, the ventilation hole 28 has one end opening facing the web 20 forming the outer peripheral surface of the filter 14 via the inner annular chamber 32.
[0018]
Further, a glue layer 34 as an adhesive member and a glue layer 36 as a gap providing means are formed on the inner surface of the outer region 26, respectively. More specifically, as shown in FIG. 4, the glue layer 34 includes a portion 34 a extending on the entire circumference at one end edge on the suction side in the outer region 26, and a portion 34 b positioned at a cut edge of the outer region 26. And On the other hand, the glue layer 36 is disposed at a certain interval in the circumferential direction of the filter 14 and the tobacco roll 12 in a region other than the glue layer 34, and in the longitudinal direction, other than the outer region 26 on the cigarette roll 12 side. Extends to the edge.
[0019]
That is, as is clear from FIG. 2, the glue layer 34 adheres the outer region 26 to the inner region 24 on the suction side. The glue layer 36 is arranged in a stripe pattern, and an outer annular chamber 38 corresponding to the inner annular chamber 32 is formed between the glue layer 36 and a portion 34a of the glue layer 34. The perforation row of the ventilation holes 28 is positioned at the bottom. Further, the glue layers 34 and 36 cooperate with each other to secure a constant gap between the inner region 24 and the outer region 26, while an air passage extending in the axial direction of the filter 14 between the glue layers 36. 40 are formed. The air passages 40 communicate with the outer annular chamber 38 on the one hand, and open at the other end of the outer region 26 on the other hand, forming an inlet for guiding outside air. That is, the other end opening of the vent hole 28 communicates with the outside through the outer annular chamber 38 and the air passage 40.
[0020]
In this manner, in the pattern shown in FIG. 4, a plurality of air holes 28 are opened in two rows along the longitudinal direction, and the tip paper 22 on which the adhesive layers 30, 34, and 36 are applied is shown in FIG. As shown in FIGS. 1 and 2, by double winding, the air passage 40, the outer annular chamber 38, the vent hole 28, the inner annular chamber 32, and the web A double cylindrical structure that forms an air introduction path that guides air into the filter 14 through 20 is formed.
[0021]
As described above, according to the present embodiment, the outer annular chamber 38 and the air passage 40 communicating with the vent hole 28 are secured between the inner region 24 and the outer region 26 of the double-wound tip paper 22. Therefore, no matter how the ventilation filter cigarette 10 is smoked, the ventilation hole 28 is not blocked, and outside air can flow into the ventilation hole 28 through the air passage 40. Further, on the suction side between the inner region 24 and the outer region 26, the portion 34a of the glue layer 34 is interposed over the entire circumference in the circumferential direction. In addition, the flow of outside air into the ventilation holes 28 is not hindered. As a result, a reduction in the Vf value is prevented irrespective of the smoking mode such as how to hold or hold the ventilation filter cigarette 10, and the amounts of nicotine and tar in the smoke are kept constant. Thus, deviation from the display value of the package can be prevented.
[0022]
Next, some modified examples will be described with reference to FIGS.
As shown in FIG. 5, in the tip paper 22a according to the first modification, instead of the glue layer 36 of the first embodiment, the embossed convex portions 42a arranged in a stripe shape in the outer region 26 provide a gap. It is formed as a means. These embossed protrusions 42a protrude to the side where the glue layer 34 is applied.
[0023]
As shown in FIG. 6, the tip paper 22b according to the second modified example is different from the first modified example in that the embossed convex portions 42b arranged in a lattice form are replaced by gap providing means. Is formed in the outer region 26. These embossed protrusions 42 b protrude toward the application surface side of the glue layer 30.
As shown in FIG. 7, the tip paper 22c according to the third modified example is different from the embossed convex portion 42b of the second modified example in that the embossed convex portions 42c arranged in a lattice pattern in the inner region 24 are provided. Are formed as gap providing means. These embossed protrusions 42c protrude on the side opposite to the application surface of the glue layer 30, or protrude alternately on both sides.
[0024]
Therefore, the embossed protrusions 42a, 42b, and 42c in the first to third modifications each function similarly to the glue layer 36 of the first embodiment. That is, when the tip papers 22a, 22b, and 22c are double-wound, the embossed protrusions 42a are interposed between the inner region 24 and the outer region 26 on the cigarette winding 12 side in a stripe shape, and are interposed therebetween. While maintaining a constant gap, a striped air passage 40 is formed. In addition, the embossed protrusions 42b and 42c are interposed between the inner region 24 and the outer region 26 in a lattice shape, to secure a certain gap therebetween, and to form a lattice-shaped air passage 40.
[0025]
(Second embodiment)
The ventilated filter cigarette 10 of FIG. 8 according to the present embodiment has substantially the same configuration as that of the first embodiment, but one tip paper 22 of the first embodiment is doubly wound. However, the difference is that two pieces of chip paper are sequentially wound and doubled. Here, the inner tip paper portion of the two tip papers is called an inner tip paper 44, and the outer tip paper portion is called an outer tip paper 46.
[0026]
Further, as shown in FIG. 9A, a plurality of ventilation holes 28 are formed in the inner chip paper 44 in the same pattern as the inner region 24 in FIG. 4, and the adhesive layer 30 is applied to the peripheral portion. Have been. Further, as shown in FIG. 9B, paste layers 34 and 36 are applied to the outer tip paper 46 in the same pattern as the outer region 26 in FIG.
[0027]
That is, the inner tip paper 44 and the outer tip paper 46 are nothing but divided inner and outer regions 24 and 26 of the tip paper 22 of FIG. Then, by sequentially winding such inner tip paper 44 and outer tip paper 46, a double cylindrical structure similar to FIG. 2 is formed.
As described above, according to the present embodiment, the same effects as those of the first embodiment can be obtained.
[0028]
In this embodiment, fourth to sixth modifications respectively corresponding to the first to third modifications of the first embodiment are possible, and these modifications are shown in FIG. , (B) to FIGS. 12 (a) and 12 (b). Inner tip papers 44a to 44c and outer tip papers 46a to 46c according to the fourth to sixth modifications divide the inner region 24 and the outer region 26 of the tip papers 22a to 22c shown in FIGS. It has the same operation and effect as the first to third modifications.
[0029]
(Third embodiment)
The ventilated filter cigarette 10 of FIG. 13 according to the present embodiment uses a non-wrap filter that does not require a paper roll. The vent 28 is opened in a thermoformed layer 48 formed around the outer periphery of the filter 14. There is a feature in the point.
That is, as shown in FIG. 13, the filter 14 has a thermoformed layer 48 in which the outer surface of a cylindrical fiber filter material is solidified by heat and fused, and the thermoformed layer 48 includes a plurality of thermoformed layers. The ventilation holes 28 are formed, for example, in two rows along the circumferential direction. Further, the tip paper 50 is wound around the thermoformed layer 48 and the outer periphery of the wrapping paper 18 in a single layer with the adhesive layers 34 and 36 interposed therebetween, whereby the filter 14 and the cigarette roll 12 are connected to each other.
[0030]
As shown in FIG. 14A, the glue layers 34 and 36 are applied to the tip paper 50, similarly to the outer tip paper 46 of FIG. 9B. Then, by winding such a tip paper 50 around the filter 14, that is, around the thermoforming layer 48, an adhesive member and the glue layers 34 and 36 as a gap providing means are provided between the thermoforming layer 48 and the tip paper 50. An annular chamber 52 is formed in which the perforation row of the ventilation holes 28 is positioned, and an air passage 40 communicating from the annular chamber 52 to the outside is formed.
[0031]
As described above, according to the present embodiment, a double cylindrical structure that forms an air introduction path that guides air from the inlet of the air passage 40 to the filter 14 through the air passage 40, the annular chamber 52, and the vent hole 28 is formed. Thus, the same effect as in the first embodiment can be obtained.
In the present embodiment, a case where a non-wrap filter is used and the vent 28 is opened in the thermoforming layer 48 around the filter 14 has been described. May be wound around a web made of a low-permeability material, and the web may be provided with a vent hole 28. In this case, the same operation and effect can be obtained.
[0032]
Also in the present embodiment, seventh and eighth modifications respectively corresponding to the fourth and fifth modifications in the case of the second embodiment are possible, and these modifications are shown in FIG. (C) shows each. The tip papers 50a and 50b according to the seventh and eighth modifications have the same structure as the outer tip papers 46a and 46b shown in FIGS. 10B and 11B, respectively. The same operation and effect as those of the fifth modification can be obtained.
[0033]
(Fourth embodiment)
The ventilation type filter cigarette 10 of FIG. 15 according to this embodiment is obtained by attaching a suction cap to a normal ventilation type filter cigarette.
That is, as shown in FIG. 15, a tip paper 54 is wound around and adhered to the outer periphery of the filter 14 and the cigarette roll 12 wound by the wrapping paper 20 having high air permeability. The winding 12 is mutually connected. In the tip paper 54, a plurality of ventilation holes 28 reaching the web 20 are formed, for example, in two rows along the circumferential direction.
[0034]
On the outer periphery of the tip paper 54, a substantially cylindrical suction cap 56 made of a material that is harder and more difficult to burn than the tip paper 54 is adhered and attached. A gap is secured between the tip paper 54 and the suction cap 56 on the cigarette winding 12 side, and this gap is interposed over the entire circumference in the circumferential direction. This gap
An annular chamber 58 in which a perforation row of the ventilation holes 28 is positioned, and an air passage 40 communicating from the annular chamber 58 to the outside are formed.
[0035]
As described above, according to the present embodiment, a double cylindrical structure that forms an air introduction path that guides air from the inlet of the air passage 40 into the filter 14 through the air passage 40, the annular chamber 58, and the vent hole 28 is formed. Thus, the same effect as in the first embodiment can be obtained.
FIG. 16 shows a ninth modification of the present embodiment. The mouth cap 56a according to the ninth modification extends longer toward the front end of the cigarette winding 12 than the mouth cap 56 of FIG. In this case, in addition to the effect of the present embodiment, since the suction cap 56a extends to the tip of the cigarette roll 12, the amount of sidestream smoke during smoking is reduced, and the scattering of ash is prevented, and the filter cigarette is used. Even if the combustible material is dropped, the effect of preventing the spread of the combustible material, that is, providing a so-called low ignitability, can be obtained.
[0036]
As described above, the ventilated filter cigarettes 10 according to the first to fourth embodiments of the present invention have been described. Next, respective devices for manufacturing these various ventilated filter cigarettes 10 will be described. In addition, the description of the common manufacturing steps will not be repeated.
[0037]
(Fifth embodiment)
The manufacturing system 60 according to the present embodiment is for manufacturing the ventilated filter cigarette 10 according to the first embodiment.
As shown in FIG. 17, the manufacturing system 60 includes a drum row 62 extending in the horizontal direction, and the rightmost transfer drum 62a of the drum row 62 in FIG. 17 is moved from a cigarette rod manufacturing machine (not shown) side. It is configured as a receiving drum that receives the supply of cigarette rods. In the process of transporting the cigarette rod, the transport drum 62b downstream of the transport drum 62a cuts the cigarette rod by the rotary knife 64a and divides the cigarette rod into two cigarette rolls 12.
[0038]
Further, a filter rod is taken out from a pair of hoppers 66 above the drum row 62. These filter rods are cut into filter plugs in the transport process with a drum row 68 similar to the drum row 62, and the filter plugs are arranged on the drum row 62 between the two cigarette windings 12 and A winding / plug assembly is formed.
[0039]
On the other hand, the paper web P is fed out from the tip paper roll 70 along a predetermined supply path. In this supply path, a punch 72 for opening a vent hole in the paper web P, and glue is applied to the back surface of the paper web P. The glue applicator 74 is arranged in order from the tip paper roll 70 side.
Specifically, the punch 72 uses, for example, laser irradiation to form a plurality of vent holes 28 in two rows along the longitudinal direction of the paper web P in a portion to be the inner region 24 as shown in FIG. And make a hole. As shown in FIG. 4, the glue applicator 74 applies the glue layers 30 and 34 as an adhesive member and the glue layer 36 as a gap applying means to portions to be the inner region 24 and the outer region 26. Therefore, the glue applicator 74 here functions as an additional device that forms both the adhesive member and the gap providing unit.
[0040]
A receiving drum 62c is disposed at the end of the supply path of the paper web P, and the receiving drum 62c includes a drum 64b with a blade. Then, the paper web P supplied to the receiving drum 62c is cut by the bladed drum 64b on the receiving drum 62c. Thus, the chip paper piece 82 shown in FIG. 18 is obtained. The tip paper piece 82 has a width corresponding to two pieces of the tip paper 22 in FIG. 4 and a length corresponding to two continuous turns of the inner region 24 and the outer region 26.
[0041]
Further, a rolling section 76 as a winding portion is disposed immediately below the receiving drum 62c. In the rolling section 76, the tip paper piece 82 is attached to the center of the tobacco scroll / plug assembly from one end, which becomes the inner region 24, and as the tobacco scroll / plug assembly rolls on the rolling section 76, Wound twice around the winding / plug assembly. Thus, a double filter cigarette in which the two cigarette rolls 12 and the filter plug are connected to each other by the tip paper piece 82 is formed.
[0042]
A row of drums 62 also extends downstream of the rolling section 76 and carries a double filter cigarette. In this transport path, the double filter cigarette is cut equally from the center by the rotary knife 64c on the transport drum 62d. Thus, two ventilated filter cigarettes 10 as shown in FIGS. 1 and 2 are formed.
[0043]
Thereafter, the two ventilated filter cigarettes 10 are moved on the drum row 62 in a direction away from each other. Then, it is supplied to the alignment conveyor 78 from the transport drum 62e at the leftmost end in FIG. After the orientation of the two ventilated filter cigarettes 10 is aligned on the alignment conveyor 78, these ventilated filter cigarettes 10 are transferred to a packaging machine (not shown).
[0044]
Note that, in the case where any of the tip papers 22a, 22b, and 22c according to the first to third modifications shown in FIGS. 5 to 7 is used instead of the tip paper 22 of the first embodiment, FIG. As shown in FIG. 19, it is necessary to provide an embossing machine 80 as an additional device for forming a gap providing means between the hole punching machine 72 and the glue applicator 74. With this embossing machine 80, the paper web P is embossed to form an embossed surface. Specifically, a portion to be the outer region 26 or the inner region 24 of the paper web P is molded by, for example, a pair of emboss rollers, and emboss convex portions 42a, 42b, and 42c shown in FIGS. 5 to 7 are formed. You.
[0045]
However, the installation position of the embossing machine 80 is not limited to the latter stage of the opening machine 72, and may be the former stage. When the embossed paper web P is supplied from the chip paper roll 70, the embossing machine 80 is not required.
[0046]
(Sixth embodiment)
The manufacturing system 60 of FIG. 20 according to the present embodiment is for manufacturing the ventilated filter cigarette 10 according to the second embodiment, and has substantially the same structure as the manufacturing system 60 of FIG. However, there are two paper web supply routes.
[0047]
That is, as shown in FIG. 20, one supply path includes a tip paper roll 70a that supplies the paper web P1 of the inner tip paper 44, a hole puncher 72a, and a glue applicator 74a. Then, the paper web P1 fed from the tip paper roll 70a passes through the opening machine 72 and the glue applicator 74a, and is cut by the bladed drum 64d on the receiving drum 62f, as shown in FIG. 21 (a). Thus, two pieces of tip paper pieces 84a of the inner tip paper 44 of FIG. 9A are obtained.
[0048]
The other supply path includes a tip paper roll 70b that supplies the paper web P2 of the outer tip paper 46 and a glue applicator 74b. After passing through the glue applicator 74b, the paper web P2 fed from the tip paper roll 70b is cut by the bladed drum 64e on the receiving drum 62g, as shown in FIG. 21 (b). 9 (b), two tip paper pieces 84b of the outer tip paper 46 are obtained.
[0049]
Here, the bladed drums 64d and 64e are different from the bladed drum 64b of the fifth embodiment in that the paper webs P1 and P2 are cut into chip paper pieces 84a and 84b each having a length of one normal turn. Then, the tip paper pieces 84a and 84b are supplied to rolling sections 76a and 76b as winding portions, respectively.
First, a tip paper piece 84a is wrapped around the center of the cigarette roll / plug assembly, followed by a tip paper piece 84b wrapped over the tip paper piece 84a. Thus, a double filter cigarette in which the tip paper is wound twice is formed.
[0050]
When any of the outer tip papers 46a and 46b shown in FIGS. 10B and 11B is used instead of the outer tip paper 46 of the second embodiment, the glue application shown in FIG. It is necessary to provide an embossing machine before the machine 74b. With this embossing machine, embossed protrusions 42a and 42b as shown in FIGS. 10B and 11B are formed on the paper web P2.
[0051]
When the inner tip paper 44c shown in FIG. 12A is used, it is necessary to provide an embossing machine before or after the hole punching machine 72a shown in FIG. 20, and the embossing machine shown in FIG. An embossed projection 42c shown in a) is formed on the paper web P1.
However, in any case, when the paper webs P1 and P2 that have been embossed in advance are supplied from the chip paper rolls 70a and 70b, there is no need to provide an embossing machine.
[0052]
(Seventh embodiment)
The manufacturing system according to the present embodiment manufactures the ventilation filter cigarette 10 according to the third embodiment, and has the same structure as the manufacturing system 60 in FIG. 17. explain. However, the drilling machine 72 in FIG. 17 is unnecessary. The filter rod in the hopper 66 has a vent formed in the thermoformed layer 48 in advance.
[0053]
That is, a filter rod manufacturing machine (not shown) hardens the outer surface of the columnar fiber filter material by heat to form a thermoformed layer 48, and forms the air holes 28 in the thermoformed layer 48. In this way, filter rods having the ventilation holes 28 are formed, and these filter rods are transported to the hopper 66 and stored.
On the paper web P fed from the tip paper roll 70, the glue layers 30, 34, and 36 are applied in a pattern shown in FIG. 14A by a glue applicator 74, and thereafter, the paper web P is Is cut into pieces of chip paper having a length of one turn.
[0054]
(Eighth embodiment)
The manufacturing system 60 according to the present embodiment is for manufacturing the ventilated filter cigarette 10 according to the fourth embodiment. This manufacturing system has a supply path of the tip paper 54 similar to the supply path of the inner tip paper 44 in FIG. 20, while a supply path of the outer tip paper 46 is omitted, although not shown, but is rigid and A supply path for a substantially cylindrical suction cap 56 made of a flame-retardant material is provided.
[0055]
Therefore, the suction cap 56 is attached to the ventilation filter cigarette around which the tip paper 54 having the ventilation hole 28 is wound. In this way, the ventilated filter cigarette 10 with the suction cap is formed.
As described above, according to the manufacturing system 60 according to the fifth to eighth embodiments, the aerated filter cigarettes 10 according to the first to fourth embodiments, that is, the amounts of nicotine and tar in smoke are respectively reduced. The ventilated filter cigarette 10 in which the specified Vf value is prevented from lowering can be easily manufactured.
[0056]
In the first to eighth embodiments, the case of the ventilation type filter cigarette using the plain filter has been described. However, the present invention is not limited to this case. Is also applicable.
In addition, in order to explain the features of the present invention, the size of each component of the ventilated filter cigarette shown in each attached drawing is exaggerated, and the dimensions of each component are significantly different from actual ones. I have. Accordingly, the present invention is not limited in any way by the dimensions of each component of the illustrated vented filter cigarette.
[0057]
【The invention's effect】
As described above in detail, according to the ventilated filter cigarette according to the present invention (claims 1 to 7), the annular chamber and the air passage are not blocked, regardless of how the cigarette is held during smoking. Since outside air can flow into the filter through the air passage and the annular chamber, a decrease in the Vf value that defines the amounts of nicotine and tar in the smoke can be prevented. Therefore, irrespective of the smoking mode, it is possible to prevent the amounts of nicotine and tar in the smoke from deviating from the indicated values on the package.
[0058]
Further, according to the ventilation type filter cigarette manufacturing system of the present invention (claims 8 to 11), it is possible to easily provide a ventilation type filter cigarette in which a decrease in the Vf value defining the amounts of nicotine and tar in smoke is prevented. Can be manufactured.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a ventilation type filter cigarette according to a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view showing a ventilation type filter cigarette according to the first embodiment of the present invention.
FIG. 3 is a view schematically showing a double winding state of the tip paper of the ventilated filter cigarette of FIG. 1;
FIG. 4 is a development view of the tip paper of FIG. 3;
FIG. 5 is a developed view of a tip paper according to a first modification of the first embodiment.
FIG. 6 is a development view of a tip paper according to a second modification of the first embodiment.
FIG. 7 is a development view of a tip paper according to a third modification of the first embodiment.
FIG. 8 is a diagram schematically showing a state of winding of an inner tip paper and an outer tip paper of a ventilation type filter cigarette according to a second embodiment of the present invention.
FIGS. 9A and 9B are developed views of the inner tip paper and the outer tip paper of FIG. 8, respectively.
FIGS. 10A and 10B are development views of an inner tip paper and an outer tip paper according to a fourth modification of the second embodiment, respectively.
FIGS. 11A and 11B are development views of an inner tip paper and an outer tip paper according to a fifth modified example of the second embodiment.
FIGS. 12A and 12B are development views of an inner tip paper and an outer tip paper according to a sixth modification of the second embodiment, respectively.
FIG. 13 is a schematic sectional view showing a ventilated filter cigarette according to a third embodiment of the present invention.
14A is a development view of the tip paper of FIG. 13, and FIGS. 14B and 14C are development views of the tip paper according to the seventh and eighth modifications of the third embodiment, respectively. is there.
FIG. 15 is a schematic sectional view showing a ventilation type filter cigarette according to a fourth embodiment of the present invention.
FIG. 16 is a schematic cross-sectional view showing a ventilated filter cigarette according to a ninth modification of the fourth embodiment.
FIG. 17 is a schematic diagram showing a system for manufacturing a ventilated filter cigarette according to a fifth embodiment of the present invention.
FIG. 18 is a development view showing a tip paper piece.
FIG. 19 is a schematic view showing a part of a system for manufacturing a ventilation filter cigarette according to a modification of the fifth embodiment.
FIG. 20 is a schematic view showing a part of a system for manufacturing a ventilation filter cigarette according to a sixth embodiment of the present invention.
FIGS. 21A and 21B are development views of chip paper pieces.
[Explanation of symbols]
10 Ventilated filter cigarettes according to first to fourth embodiments
12 cigarette rolls
14 Filter
16 Tobacco Chop
18 roll paper
20 roll paper
22,50,54 Chip paper
24 Inside area of tip paper
26 Outside area of tip paper
28 vent
30, 34, 36 glue layer
32 inner annular chamber
38 Outer annular chamber
40 air passage
42a, 42b, 42c Embossed protrusion
44 Inner tip paper
46 Outer tip paper
48 Thermoforming layer
52,58 Annular chamber
56, 56a Suction cap
60 Manufacturing system for ventilated filter cigarette according to sixth to tenth embodiments
62,68 drum row
72, 72a, 72b, 90
74, 74a, 74b, 88 Glue coating machine
76, 76a, ..., 76c Rolling section
80 Embossing machine
82, 84a, 84b Chip paper pieces

Claims (11)

A cigarette roll with a cigarette wrapped around by cigarette paper,
A cylindrical filter arranged adjacent to one end of the cigarette roll;
A connection pipe member that covers the outer periphery of the filter and at least one end of the cigarette roll and connects the filter and the cigarette roll to each other;
An air introduction path having an inlet at an end face of the connection pipe member located at the other end side of the cigarette winding, and introducing air from the inlet into the filter;
The air introduction path,
An annular chamber formed inside the connection pipe member and one between the filter and the connection pipe member, surrounding the outside of the filter and ensuring the flow of air to the inside of the filter, and A ventilated filter cigarette having an air passage extending in the axial direction of the filter and communicating between the annular chamber and the inlet. The connection pipe member,
A tip paper that is double-wrapped around the outer periphery of one end of the filter and the cigarette roll,
Gap providing means for securing a gap between the inner tip paper portion and the outer tip paper portion of the tip paper, and forming the annular chamber and the air passage;
The inner tip paper portion is formed at a predetermined interval in the circumferential direction thereof, and has one end opening communicating with the annular chamber and the other end opening including a plurality of ventilation holes facing the outer peripheral surface of the filter. The ventilated filter cigarette according to claim 1, wherein: The ventilated filter cigarette according to claim 2, wherein the inner and outer tip paper portions are integrally connected. The vented filter cigarette according to claim 2, wherein the inner and outer tip paper portions are separate bodies. The connection pipe member,
Tip paper wound around the outer periphery of one end of the filter and the cigarette roll,
A gap providing means for securing a gap between the tip paper and the filter, and forming the annular chamber and the air passage,
The air introduction path,
The ventilation according to claim 1, further comprising a plurality of ventilation holes formed on the outer peripheral surface of the filter at predetermined intervals in a circumferential direction of the annular chamber, and opened to face the annular chamber. Type filter cigarette. The gap applying means,
The air-permeable filter cigarette according to any one of claims 2 to 5, comprising at least one of an embossed surface and a glue layer formed partially on the tip paper. The connection pipe member,
Tip paper wound around the outer periphery of one end of the filter and the cigarette roll,
A hard suction cap that surrounds the outside of the tip paper and secures the annular chamber and the air passage between the tip paper and the tip paper;
The tip paper is formed at a predetermined interval in the circumferential direction thereof, and has one end opening communicating with the annular chamber and the other end opening including a plurality of ventilation holes facing the outer peripheral surface of the filter. The ventilated filter cigarette according to claim 1. 3. The assembly of claim 2, wherein a cylindrical filter is formed between the two cigarette rolls in which the tobacco cut is wound by a wrapper and the assembly is supplied to the wrapper. A tip paper having a ventilation hole is supplied, and the tip paper is wound around the assembly at the winding portion to form a double filter cigarette, and thereafter, the double filter cigarette is cut into equal pieces to obtain individual filter cigarettes. In a manufacturing system for manufacturing
3. A gas-permeable filter cigarette according to claim 2, further comprising an additional device provided in a supply path of the tip paper, wherein the addition device forms at least one of an embossed surface and a glue layer on the tip paper to secure the gap. Manufacturing system. 9. The system according to claim 8, wherein the winding unit winds one tip paper twice. 9. The manufacturing of the ventilation type filter cigarette according to claim 8, comprising two supply paths for supplying the tip paper, respectively, and two winding portions for sequentially winding the tip paper supplied from the supply path. system. 6. An assembly in which the cylindrical filter having the ventilation hole according to claim 5 is tightly fitted between two cigarette rolls each having a cut of tobacco wound by a wrapping paper, and the assembly is supplied to a winding section while the cigarette filter is supplied to the winding section. A tip paper is supplied to a winding portion, and the tip paper is wound around the assembly at the winding portion to form a double filter cigarette. After that, the double filter cigarette is cut into equal pieces to separate individual filter cigarettes. In a manufacturing system for manufacturing
The ventilation filter cigarette according to claim 5, further comprising an additional device that is provided in a supply path of the tip paper and that forms at least one of an embossed surface and a glue layer on the tip paper to secure the gap according to claim 5. Manufacturing system.

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