JP2017216914A - Production method of smoking article and smoking article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent degradation of production efficiency and increase of production cost when producing a smoking article having a filter part formed of a pattern in a side face.SOLUTION: A production method of a smoking article has: a fitting step of fitting a rod-shaped filter portion to a rod-shaped smoking portion, by integrally winding a peripheral surface of one end of the filter portion and the peripheral surface of the one end of the smoking portion with tipping paper while the one end of the filter portion is brought into abutment with the one end of the smoking portion in an axial direction of each other; and a forming step of forming 2 pieces or more and 8 pieces or less of open areas having at least one opening for circulating the outside air from the surface of the filter portion toward the inside of the filter portion, by a constant pattern repeated in the peripheral direction of the filter portion to the tipping paper.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a method for manufacturing a smoking article and a smoking article.

  For example, as disclosed in Patent Document 1, a cigarette has a filter portion (also referred to as “plug” or “chip filter”) with a plurality of colors of fibers such as cellulose acetate at predetermined positions in the radial cross section of the filter portion. Some of them are arranged to form a pattern on the end face (hereinafter simply referred to as “end face”) on the suction side of the filter portion.

  Moreover, as disclosed in Patent Document 2, the cigarette has a distribution of tar concentration contained in the mainstream smoke passing through the filter portion at the time of smoking by partially varying the ventilation resistance in the radial direction of the filter portion. Some of them form a pattern on the end face of the filter portion.

CN104366690 publication JP 2003-310235 A

  When manufacturing a smoking article such as a cigarette having a filter part with a pattern formed on the end face, for example, prepare multiple types of fibers with different colors and fineness, and place each fiber at a predetermined position in the radial cross section of the filter part Process and dedicated equipment are required, which may reduce the production efficiency and increase the production cost.

  An object of the present invention is to prevent a decrease in manufacturing efficiency and an increase in manufacturing cost when manufacturing a smoking article having a filter portion having a pattern formed on an end face.

  In order to solve the above problems, a manufacturing method for manufacturing a smoking article according to one aspect of the present invention is in a state where one end of a rod-shaped filter portion and one end of a rod-shaped smoking portion are abutted in the axial direction of each other. A mounting step of mounting the filter portion on the smoking portion by integrally winding the peripheral surface of the one end of the filter portion and the peripheral surface of the one end of the smoking portion with a chip paper; and the filter Two or more and eight or less opening regions having at least one opening for circulating outside air from the surface of the portion toward the inside of the filter portion are repeated in the circumferential direction of the filter portion with respect to the chip paper. And a forming step of forming with a constant pattern.

  According to the above method, two or more and eight or less opening regions are formed in a certain pattern repeated in the circumferential direction of the filter part with respect to the chip paper, so that the opening part can be inside the filter part when smoking. Outside air is introduced. Thus, in the radial cross section of the filter portion, the concentration of mainstream smoke flowing through a region (referred to as a first region) from the surface of the filter portion corresponding to the opening to a certain depth is referred to as the first region of the filter portion. The concentration can be lower than the concentration of the mainstream smoke that circulates in the other region (referred to as the second region). Here, since the number of the open areas is 2 or more and 8 or less, in the circumferential direction of the filter portion, a concentration difference of tar contained in the mainstream smoke flowing through the first area and the second area is generated, and the filter A pattern can be easily formed on the end face of the portion.

  Therefore, in order to manufacture a smoking article in which a pattern is formed on the end face of the filter portion, a process of preparing a plurality of types of fibers and arranging each fiber at a predetermined position in the radial cross section of the filter portion is used. Since it is not necessary, it is possible to prevent a decrease in manufacturing efficiency of the smoking article and to prevent an increase in manufacturing cost.

  In the forming step, the opening region may be formed by concentrating a plurality of the openings. Accordingly, the opening region can be easily formed by the plurality of opening portions, and the size of the opening region in the circumferential direction of the filter portion can be easily adjusted.

  In the forming step, a plurality of the openings may be formed in the circumferential direction in the opening region with a space narrower than a space between the opening regions adjacent in the circumferential direction. As a result, the amount of outside air introduced to the filter part and the position of the outside air introduction can be finely adjusted, so that the dimensions in the circumferential direction of the filter part between the first region and the second region can be easily adjusted and formed on the end surface of the filter part. The degree of freedom in designing the pattern to be printed can be improved.

  In the forming step, the opening may be formed between a position spaced 10 mm from the end face of the other end of the filter part in the axial direction of the filter part and an end face on the one end side of the filter part. Good.

  As a result, the outside air introduced into the inside of the filter portion from the opening can be easily diffused in a certain range in the circumferential direction and the radial direction of the filter portion while passing through the inside of the filter portion in the axial direction. It is possible to facilitate the formation of a pattern.

  In the forming step, the opening may be formed by irradiating the chip paper after the mounting step with a laser. Thereby, for example, even after the chip paper is wound around the filter portion, it is possible to easily form the opening in the chip paper quickly, and it is possible to prevent the manufacturing efficiency of the smoking article from being lowered.

  In the forming step, a plurality of perforations extending in the radial direction of the filter portion from the surface of the filter portion toward the inside of the filter portion by irradiating the filter portion with the laser through the opening. A part may be formed.

  Thus, by forming the perforated part in the filter part, it is easy to introduce the outside air introduced from the opening part of the chip paper into the inside of the filter part corresponding to the opening part, and a pattern is further formed on the end face of the filter. Can be made easier. Moreover, the opening part of a chip paper and the perforation part of a filter part can be efficiently formed at once by laser irradiation.

  In the forming step, the laser beam may be spot-irradiated on the chip paper while rotating the filter portion in the circumferential direction. Thereby, even after the chip paper is wound around the filter portion, the opening can be efficiently formed at a predetermined position of the chip paper.

  In the mounting step, the chip paper in which the opening is formed by the forming step may be used. Thereby, for example, since it is easy to form the opening in the chip paper without forming the perforated portion in the filter portion, the size, shape, and position of the first region and the second region of the filter portion are adjusted, and the filter The degree of freedom in designing the pattern formed on the end face of the portion can be further improved.

  Further, the smoking article according to another aspect of the present invention is a state in which a rod-shaped filter portion, a rod-shaped smoking portion, one end of the filter portion, and one end of the smoking portion are butted against each other in the axial direction. And a tip paper integrally wound around the peripheral surface of the one end of the filter portion and the peripheral surface of the one end of the smoking portion, and from the surface of the filter portion toward the inside of the filter portion 2 to 8 opening regions having at least one opening through which the outside air is circulated are formed in a certain pattern repeated in the circumferential direction of the filter portion with respect to the chip paper.

  According to each aspect of the present invention described above, when manufacturing a smoking article having a filter portion with a pattern formed on the end face, it is possible to prevent a decrease in manufacturing efficiency and an increase in manufacturing cost.

It is a side view of the filter rod manufacturing apparatus concerning a 1st embodiment. It is a perspective view of a filter rod. It is a side view of the cigarette manufacturing apparatus concerning a 1st embodiment. It is a perspective view of a tobacco rod. It is a perspective view of two cigarette parts. It is a perspective view of an aggregate. It is a perspective view of a wound body. It is a perspective view of a cigarette material. It is the figure which looked at the cigarette material processed with a laser processing apparatus from the axial direction of a rotation roll pair. It is a perspective view of the cigarette obtained by passing through a laser processing apparatus. It is radial direction sectional drawing of the part in which the opening area | region of the cigarette of FIG. 10 was formed. It is an end view of the filter part after smoking of the cigarette of FIG. It is radial direction sectional drawing of the part in which the opening area | region of the cigarette which concerns on the modification 1 was formed. It is an end view of the filter part after smoking of the cigarette of FIG. It is radial direction sectional drawing of the part in which the opening area | region of the cigarette which concerns on the modification 2 was formed. It is an end elevation of the filter part after smoking of the cigarette of FIG. It is radial direction sectional drawing of the part in which the opening area | region of the cigarette which concerns on the modification 3 was formed. It is an end view of the filter part after smoking of the cigarette of FIG. It is radial direction sectional drawing of the part in which the opening area | region of the cigarette which concerns on the modification 4 was formed. It is an end elevation of the filter part after smoking of the cigarette of FIG. It is a partial side view of the cigarette manufacturing apparatus which concerns on 2nd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. The upstream and downstream referred to below indicate the upstream and the downstream in the transport direction P of the toe band 21 in order. The width direction refers to the width direction of the toe band 21.

(First embodiment)
[Filter rod manufacturing equipment]
FIG. 1 is a side view of a filter rod manufacturing apparatus 1 according to the first embodiment. As shown in FIG. 1, the filter rod manufacturing apparatus 1 includes a converging ring 2, a first opening device 3, a turn baffle 4, a boom 5, a second opening device 6, a pretension roll pair 7, and a first opening roll. A pair 8, a second opening roll pair 9, a third opening apparatus 10, an attaching apparatus 11, a transport roll pair 12, a transport jet 13, a winding tube section 14, a garniture belt 15, and a cutting apparatus 16 are provided.

  A packing container 20 is disposed in the vicinity of the filter rod manufacturing apparatus 1. A toe band 21 is folded into a bale shape and packed in a packing container 20 in a compressed state. The packaging container 20 in FIG. 1 has a cross-sectional structure.

  The converging ring 2 causes the tow band 21 lifted from the packing container 20 to pass through and converge. The first fiber opening device 3 blows air toward the tow band 21 to be conveyed, opens the toe band 21 and widens it in the width direction.

  The turn baffle 4 guides the tow band 21 lifted from the packing container 20 toward the second fiber opening device 6. The boom 5 is composed of a long pipe. A convergence ring 2, a first fiber opening device 3, and a turn baffle 4 are attached to the upper end portion of the boom 5. The lower end of the boom 5 is fixed to the housing 17 of the filter rod manufacturing apparatus 1. The second spreader 6 opens the tow band 21 opened by the first spreader 3 and further widens it in the width direction. The second fiber opening device 6 is supported by the housing 17.

  The pretension roll pair 7, the first opening roll pair 8, and the second opening roll pair 9 are sequentially provided in the conveyance path of the toe band 21 from the upstream side toward the downstream side. In the pretension roll pair 7, the first opening roll pair 8, and the second opening roll pair 9, each pair of rolls is disposed with their circumferential surfaces facing each other. The toe band 21 is inserted between each roll of the pre-tension roll pair 7, the first opening roll pair 8, and the second opening roll pair 9. The tow band 21 is opened by applying tension in the transport direction P and the width direction by the pre-tension roll pair 7, the first opening roll pair 8, and the second opening roll pair 9. As a result, the tow band 21 is opened by separating a plurality of crimped filaments from each other, and the tow band 21 becomes bulky.

  The third fiber opening device 10 opens the tow band 21 that has passed through the second fiber opening roll pair 9 and further widens it in the width direction. Accordingly, the plasticizer is easily attached to the toe band 21 in the attaching device 11.

  The attaching device 11 includes a housing 18 in which a liquid plasticizer is stored. The toe band 21 that has passed through the third fiber opening device 10 is inserted into the housing 18. The attaching device 11 adheres a plasticizer to the tow band 21 and dissolves a part of the filament. Thereby, when shape | molding the toe band 21 in the rod shape in the winding tube part 14 mentioned later, the shape of the toe band 21 becomes easy to be hold | maintained.

  The transport roll pair 12 passes the tow band 21 that has passed through the attaching device 11 between the rolls and transports it to the transport jet 13. The transport jet 13 transports the tow band 21 that has passed through the pair of transport rolls 12 to the winding tube unit 14 by a jet airflow. The wound tube portion 14 includes a funnel 14a, a tongue 14b, and a garniture 14c. In the winding tube portion 14, the tow band 21 that has passed through the transport jet 13 is wound into a spiral shape by the funnel 14a and formed into a rod shape. The web 22 fed from the web roll 24 is guided to the toe band 21 side by the tongue 14b. The rod-shaped tow band 21 is conveyed by the garniture belt 15. A wrapping paper 22 is wound around and fixed to the outer periphery of the toe band 21 in the garniture 14c.

  The cutting device 16 cuts the molded tow band 21 into a predetermined length. Thereby, the filter rod 80 is manufactured. FIG. 2 is a perspective view of the filter rod 80. The filter rod 80 is used as a material for two filter portions 81 (see FIG. 6).

[Cigarette manufacturing equipment]
FIG. 3 is a side view of the cigarette manufacturing apparatus 30 according to the first embodiment. FIG. 4 is a perspective view of the tobacco rod 70. FIG. 5 is a perspective view of two cigarette portions (smoking portions) 71. FIG. 6 is a perspective view of the assembly 72. FIG. 7 is a perspective view of the wound body 73. FIG. 8 is a perspective view of the cigarette material 74.

  As shown in FIG. 3, the cigarette manufacturing apparatus 30 includes a tobacco rod manufacturing apparatus 31, a filter mounting apparatus 32, and a laser processing apparatus 33. The tobacco rod manufacturing apparatus 31 includes a tobacco cut hopper 34, a conveyor belt 35, a garniture 36, a tongue 37, and a cutting device 38.

  The tobacco cut hopper 34 stores a tobacco cut 23. The transport belt 35 is disposed below the tobacco cut hopper 34 and transports the tobacco cut 23 supplied from the tobacco cut hopper 34 to the garniture 36. The tobacco stamp 23 is placed on a wrapping paper 26 that is fed from the wrapping roll 25 and supplied above the garniture 36. The garniture 36 continuously winds the tobacco cut 23 with the wrapping paper 26 while curving the wrapping paper 26 in the width direction with the tongs 37 disposed above the garniture 36. The cutting device 38 is disposed downstream of the garniture 36 and cuts the wrapping paper 26 into a predetermined length. As shown in FIG. 4, the tobacco rod 70 is thereby manufactured. The tobacco rod 70 is used as a material for two cigarettes 75 (see FIG. 10).

  The filter mounting device 32 is a mounting device that mounts the filter portion 81 on the cigarette portion 71 (see FIGS. 7 and 8). The filter mounting device 32 includes a drum row 40, a first rotary knife 41, a filter rod hopper 42, and a second rotary knife 43. The drum row 40 includes an inlet drum 45, a first cutting drum 46, a separation drum 47, a collecting drum 48, a first alignment drum 49, a suction drum 50, a second cutting drum 51, a rotating drum 52, a third cutting drum 53, and a reverse rotation. It has a drum 54, a second alignment drum 55, an inspection drum 56, an exclusion drum 57, and an outlet drum 58. A plurality of filter rods 80 are stored in the filter rod hopper 42.

  In the filter mounting device 32, the tobacco rod 70 carried out from the tobacco rod manufacturing device 31 is transported from the inlet drum 45 to the first cutting drum 46, and is rotated by the first rotary knife 41 on the peripheral surface of the first cutting drum 46. Divided equally. As shown in FIG. 5, two rod-shaped cigarette portions 71 adjacent to each other in the axial direction are thereby produced. The two cigarette portions 71 are conveyed from the first cutting drum 46 to the separation drum 47 and separated in the axial direction on the peripheral surface of the separation drum 47.

  The filter rod 80 is divided into two equal parts by a rotary knife (not shown) while being conveyed from the filter rod hopper 42 toward the collecting drum 48. As shown in FIG. 6, two rod-shaped filter portions 81 adjacent in the axial direction are thereby produced. The two filter portions 81 are transported to the peripheral surface of the collective drum 48 and supplied between the two cigarette portions 71. As a result, an aggregate 72 composed of two cigarette portions 71 and two filter portions 81 is formed. The assembly 72 is conveyed from the assembly drum 48 to the first alignment drum 49. On the peripheral surface of the first alignment drum 49, the adjacent cigarette part 71 and the filter part 81 in the assembly 72 are in close contact with each other in the axial direction.

  Further, the chip paper 28 fed out from the chip paper roll 27 is guided by the suction drum 50 and cut to a predetermined length by the second cutting drum 51. The cut chip paper 28 is supplied with glue on the peripheral surface of the suction drum 50 and supplied to the first alignment drum 49. On the peripheral surface of the first alignment drum 49, the peripheral surfaces of the end portions of the two cigarette portions 71 and the entire peripheral surfaces of the two filter portions 81 are wound around the chip paper 28.

  Specifically, as shown in FIG. 7, one end of the filter portion 81 and one end of the cigarette portion 71 are abutted in the axial direction of each other, and the circumferential surface of one end of the filter portion 81 and the cigarette portion 71 are A mounting step of mounting the filter portion 81 on the cigarette portion 71 is performed by integrally winding the peripheral surface of one end with the chip paper 28. Thereby, the aggregate 72 is produced.

  The assembly 72 is conveyed from the first alignment drum 49 to the rotating drum 52. In the rotating drum 52, the aggregate 72 is rotated in the axial direction on the peripheral surface of the rotating drum 52, so that the chip paper 28 is uniformly wound around the outer periphery of the aggregate 72. As shown in FIG. 7, the wound body 73 is thereby produced.

  The wound body 73 is conveyed from the rotary drum 52 to the third cutting drum 53, and is divided into two equal parts by the second rotating knife 43 on the peripheral surface of the third cutting drum 53. As shown in FIG. 8, this produces two cigarette materials 74. The cigarette material 74 is conveyed from the third cutting drum 53 to the reversing drum 54. In the reversing drum 54, one of the two cigarette materials 74 is reversed, and the direction of the cigarette material 74 is aligned.

  The cigarette material 74 is conveyed from the reversing drum 54 to the second alignment drum 55, aligned in the axial direction on the peripheral surface of the second alignment drum 55, and then conveyed to the inspection drum 56 for inspection. The cigarette material 74 is conveyed from the inspection drum 56 to the exclusion drum 57. In the exclusion drum 57, the cigarette material 74 determined to be defective in the inspection drum 56 is excluded. The cigarette material 74 conveyed on the exclusion drum 57 is conveyed to the outlet drum 58 and carried out of the filter mounting device 32.

  In the laser processing apparatus 33, two or more and eight or less opening regions 75 c (see FIG. 10) each having at least one opening 75 a and perforation 75 b are arranged in the circumferential direction of the filter portion 81 with respect to the chip paper 28. It is a forming apparatus that forms a pattern that is repeated. The laser processing device 33 includes a control device 60, a laser oscillator 61, a rotating chopper 62, a magnifying lens 63, a condenser lens 64, and a rotating roll pair 65. As an example, the control device 60 is a computer including a ROM, a RAM, and a CPU (not shown), and controls the laser oscillator 61 by a predetermined control program stored in the ROM.

The laser oscillator 61 is a CO ₂ laser oscillator in the present embodiment, but is not limited to this. The rotary chopper 62 intermittently blocks the optical path of the laser light at a predetermined timing, and adjusts the laser light in a pulse shape. The magnifying lens 63 increases the diameter of the laser beam. The condensing lens 64 narrows down the laser beam diameter. The rotating roll pair 65 is a pair of rolls supported in a state where the axial directions are parallel, and rotates the cigarette material 74 carried in from the filter mounting device 32 in the circumferential direction.

  FIG. 9 is a view of the cigarette material 74 processed by the laser processing apparatus 33 as seen from the axial direction of the rotary roll pair 65. The rolls 66 and 67 of the rotary roll pair 65 are drive rolls. As shown in FIG. 9, the rolls 66 and 67 are arranged at intervals and are driven to rotate at the same speed in the same direction. The rotation speeds of the rolls 66 and 67 are controlled by the control device 60.

  In the laser processing device 33, the cigarette material 74 carried from the filter mounting device 32 is rotated at a predetermined speed in the circumferential direction by the rolls 66 and 67 of the rotary roll pair 65. When the control device 60 controls the laser oscillator 61 based on the control program, the laser light is oscillated in the laser oscillator 61. The laser light output from the laser oscillator 61 is adjusted in a pulse shape by the rotating chopper 62, enlarged by the magnifying lens 63, and then narrowed down by the condenser lens 64 to become a laser beam L.

  The laser beam L is spot-irradiated at predetermined intervals to a plurality of positions on the peripheral surface of the chip paper 28 while rotating the filter portion 81 together with the cigarette material 74 in the circumferential direction. The laser beam L penetrates the chip paper 28 and the wrapping paper 22 and perforates the rod-shaped toe band 21. The depth of drilling by the laser beam L is set by adjusting the intensity of the laser beam L. The irradiation interval of the laser beam L in the circumferential direction of the filter portion 81 is set by adjusting the rotation speed of the rotary roll pair 65.

  Accordingly, a forming process is performed in which two or more and eight or less opening regions 75c are formed on the chip paper 28 in a certain pattern repeated in the circumferential direction of the filter portion 81.

  In the present embodiment, the laser processing device 33 is set so as to repeatedly form the opening regions 75 c at five locations spaced at regular intervals in the circumferential direction of the filter portion 81. By passing the cigarette material 74 through the laser processing apparatus 33, a cigarette (also referred to as a filter cigarette) 75 that is a smoking article is obtained.

  FIG. 10 is a perspective view of a cigarette 75 obtained by passing through the laser processing apparatus 33. FIG. 11 is a radial cross-sectional view of a portion where the opening region 75c of the cigarette 75 of FIG. 10 is formed.

  As shown in FIGS. 10 and 11, a plurality of (here, five) opening regions 75 c are repeatedly formed in the cigarette 75 that has passed through the laser processing device 33 at a constant interval E <b> 1 in the circumferential direction of the filter portion 81. Has been. One opening 75a and one perforation 75b are formed in the opening region 75c. The opening area 75c corresponds to a formation area of the opening 75a and the perforated part 75b.

  The opening portion 75 a and the perforated portion 75 b are formed to circulate outside air from the surface of the filter portion 81 toward the inside of the filter portion 81. The perforated part 75 b communicates with the opening 75 a and extends in the radial direction of the filter part 81 from the surface of the filter part 81 to the inside of the filter part 81.

  The number of openings 75a and perforated portions 75b can be set as appropriate within the range of 2 to 8, but as an example, the number of the range of 2 to 7 is desirable. The number in the range of 6 or less is more desirable, and the number in the range of 2 to 5 is more desirable.

  The depth dimension of the perforated part 75b can be set as appropriate, but as an example, a value in the range of 1/20 or more and 1/3 or less of the diameter of the cigarette 75 is desirable, and a range of 1/15 or more and 1/4 or less. A value in the range of 1/10 to 1/6 is more desirable. As another example, the depth dimension of the perforated portion 75b is preferably a value in the range of 0 mm to 3 mm, more preferably a value in the range of 0 mm to 2 mm, and a value in the range of 0 mm to 1 mm. More desirable.

  The depth dimensions of the plurality of perforated portions 75b may be the same as or different from each other. The plurality of perforated portions 75b are separated from each other, but may be in contact with each other at the radial center of the cigarette 75, for example. The perforated portion 75b is not essential and may be omitted. In this case, the opening region 75c is formed only by the opening 75a.

  The diameters of the opening 75a and the perforated part 75b can be set as appropriate, but as an example, a value in the range of 1/240 or more and 1/24 or less of the circumference of the cigarette 75 is desirable, and a range of 150 or more and 100 or less. Is more preferable, and a value in the range of 1/100 to 1/70 is more desirable.

  Moreover, each diameter of the some opening part 75a and the perforation part 75b may be the same, and may mutually differ. Further, the diameters of the plurality of openings 75 a and the perforated portions 75 b may be periodically different in the circumferential direction of the filter portion 81.

  Further, the position where the opening 75a is provided in the axial direction of the filter portion 81 can be set as appropriate.As an example, in the axial direction, a position that is 10 mm away from the end surface 81a of the other end of the filter portion 81; It is desirable that the filter portion 81 be provided between the end surface 81b on the one end side. The opening 75a is more preferably provided at a position separated from the end surface 81a by a value in the range of 10 mm to 17 mm in the axial direction.

  When the cigarette 75 is smoked, outside air is introduced toward the inside of the filter portion 81 from one end in the axial direction exposed to the outside of the cigarette portion 71, and from the opening 75 a and the perforated portion 75 b to the inside of the filter portion 81. Outside air is introduced. As a result, in the radial cross section of the filter portion 81, the second region other than the first region 90 of the filter portion 81 has a first region 90 from the surface of the portion of the filter portion 81 corresponding to the opening 75a to a certain depth. Compared to the region 91, more outside air circulates. For this reason, the tar concentration of mainstream smoke flowing through the first region 90 within a unit time is lower than the tar concentration of mainstream smoke flowing through the second region 91.

  FIG. 12 is an end view of the filter portion 81 after smoking the cigarette 75 of FIG. As shown in FIG. 12, a pattern is formed on the end surface 81 a of the filter portion 81 due to the difference in tar concentration between the first region 90 and the second region 91 of the filter portion 81. In the present embodiment, one second region 91 is colored darker than the five first regions 90 that are separated in the circumferential direction of the filter portion 81. Thereby, the substantially star-shaped pattern radially extended from the radial center of the cigarette 75 to the longitudinal direction of each perforated part 75b is formed in the end surface 81a of the filter part 81 as a whole.

  As described above, according to the present embodiment, two or more and eight or less opening regions 75c are formed on the chip paper 28 in a constant pattern repeated in the circumferential direction of the filter portion 81. During the smoking, outside air is introduced into the filter part 81 from the opening 75a and the perforated part 75b. Thereby, in the radial cross section of the filter portion 81, the concentration of mainstream smoke flowing through the first region 90 can be made lower than the concentration of mainstream smoke flowing through the second region 91. Here, since the number of each of the opening portion 75a and the perforated portion 75b is 2 or more and 8 or less, it is included in the mainstream smoke flowing through the first region 90 and the second region 91 in the circumferential direction of the filter portion 81. A tar density difference is generated, and a pattern can be easily formed on the end face of the filter portion 81.

  Such a cigarette 75 is relatively easily manufactured using a normal cigarette manufacturing apparatus. Therefore, in order to manufacture the cigarette 75, it is not necessary to prepare a plurality of types of fibers and arrange each fiber at a predetermined position in the radial cross section of the filter portion or use a dedicated facility. A reduction in efficiency can be prevented and an increase in manufacturing cost can be prevented.

  Moreover, in the cigarette manufacturing apparatus 30, the cigarette similar to the past can be normally manufactured, and the cigarette 75 can be produced in a necessary amount as required. Therefore, it is possible to flexibly cope with changing the type of cigarette to be manufactured.

  Further, in the forming step, since two or more and eight or less open regions 75c are formed in a constant pattern repeated in the circumferential direction of the filter portion 81, the first region 90 and the second region 91 are formed in the circumferential direction of the filter portion 81. Can be formed in a certain pattern. For this reason, it is possible to easily form a pattern with less distortion on the end surface 81 a of the filter portion 81.

  In the forming process, in the axial direction of the filter portion 81, an opening 75 a is provided between a position that is 10 mm away from the end surface 81 a of the filter portion 81 in the axial direction of the filter portion 81 and the end surface of the one end side of the filter portion 81. And the perforated part 75b is formed. For this reason, the outside air introduced into the filter part 81 from the opening 75a and the perforated part 75b is diffused in a certain range in the circumferential direction and the radial direction of the filter part 81 while passing through the filter part 81 in the axial direction. Therefore, it is possible to easily form a pattern on the end surface 81a of the filter portion 81.

  Further, in the forming step, a plurality of openings 75a and perforations 75b are formed by irradiating the chip paper 28 with a laser in a state where the filter portion 81 is attached to the cigarette portion 71. For this reason, for example, even after the chip paper 28 is wound around the filter portion 81, the opening 75a and the perforated portion 75b can be easily formed quickly, and the production efficiency of the cigarette 75 can be prevented from being lowered.

  Further, in the forming step, a plurality of openings extending in the radial direction of the filter portion 81 from the surface of the filter portion 81 toward the inside of the filter portion 81 by irradiating the filter portion 81 with laser through the plurality of openings 75a. A perforated portion 75b is formed. For this reason, the outside air introduced from the opening 75a of the chip paper 28 can be easily introduced into the inside of the filter portion 81 corresponding to the opening 75a, and the pattern can be further easily formed on the end surface 81a of the filter portion 81. it can. Further, the opening 75a of the chip paper 28 and the perforated portion 75b of the filter portion 81 can be efficiently formed at a time by laser irradiation.

  In the forming step, the chip paper 28 is spot-irradiated while rotating the filter portion 81 in the circumferential direction. For this reason, even after the chip paper 28 is wound around the filter portion 81, the opening 75a and the perforated part 75b can be efficiently formed at predetermined positions of the chip paper 28. Hereinafter, modifications of the present embodiment will be described.

(Modification)
FIG. 13 is a radial cross-sectional view of a portion where the opening region 76c of the cigarette 76 according to Modification 1 is formed. 14 is an end view of the filter portion 82 after smoking the cigarette 76 of FIG. As shown in FIG. 13, three opening regions 76 c are repeatedly formed in the filter portion 82 of the cigarette 76 at a constant interval E <b> 2 in the circumferential direction of the filter portion 82.

  In the opening region 76c, three openings 76a and perforations 76b are locally arranged at a constant interval E3 in the circumferential direction of the filter portion 82, respectively. The fixed interval E2 is larger than the fixed interval E3. Each of the opening regions 76c is formed by closely packing a plurality of (here, three) openings 76a and perforations 76b.

  The opening region 76c includes openings 76a and perforations 76b located at both ends in the circumferential direction of the filter portion 82 in each group of a plurality of openings 76a and perforations 76b locally provided in the filter portion 82. It corresponds to a formation region and a region between them.

  As described above, in the formation process of the first modification, a plurality of openings 76a are formed in a constant pattern (a pattern in which one constant interval E2 and two constant intervals E3 are successively arranged) repeated in the circumferential direction of the filter portion 82. And the perforated part 76b is formed.

  Further, a plurality of gaps in the circumferential direction of the filter portion 82 are provided in the opening area 76c with a gap (constant gap E3) smaller than a gap (constant gap E2) between the opening areas 76c adjacent in the circumferential direction of the filter part 82. An opening 76a and a perforated portion 76b are formed.

  As shown in FIG. 14, three first regions 92 and one second region 93 are thereby formed in the filter portion 82. After smoking the cigarette 76, a generally triangular pattern is formed on the end surface 82a of the filter portion 82 as a whole.

  As in the first modification, in the forming step, the opening region may be formed by bringing together a plurality of openings and perforations. Accordingly, the opening region 76c can be easily formed by the plurality of openings 76a and the perforated portions 76b, and the size of the opening region 76c in the circumferential direction of the filter portion 82 can be easily adjusted.

  Further, in the forming step, a plurality of openings and perforations may be formed in the opening region in the circumferential direction of the filter portion with a space narrower than the space between the opening regions adjacent in the circumferential direction of the filter portion. Good. Thereby, since the introduction amount and the introduction position of the outside air to the filter portion 82 can be finely adjusted, it is easy to adjust the spread in the circumferential direction of the filter portion 82 between the first region 92 and the second region 93. The degree of freedom in designing the pattern formed on the end face 82a of 82 can be improved.

  In addition, the several opening part and perforation part in one opening area | region may be separately formed in the axial direction of the filter part. In addition, a plurality of openings and perforations in one opening region may be divided into a plurality of groups that are separated in the axial direction of the filter portion, and a plurality of openings may be formed for each group.

  FIG. 15 is a radial cross-sectional view of a portion where the opening region 77c of the cigarette 77 according to Modification 2 is formed. 16 is an end view of the filter portion 83 of the cigarette 77 of FIG. 15 after smoking. As shown in FIG. 15, three opening regions 77 c are repeatedly formed in the filter portion 83 of the cigarette 77 at a constant interval E <b> 4 in the circumferential direction of the filter portion 83.

  In the opening region 77c, five openings 77a and perforations 77b are locally arranged at a constant interval E5 in the circumferential direction of the filter portion 83, respectively. The fixed interval E4 is larger than the fixed interval E5. Each of the opening regions 77c is formed by closely packing a plurality of (here, five) openings 77a and perforations 77b.

  The opening region 77c includes openings 77a and perforations 77b located at both ends in the circumferential direction of the filter portion 83 in each group of a plurality of openings 77a and perforations 77b provided locally in the filter portion 83. It corresponds to a formation region and a region between them.

  Thus, in the formation process of the modified example 2, a plurality of openings 77a are formed in a constant pattern (a pattern in which one constant interval E4 and four constant intervals E5 are successively arranged) repeated in the circumferential direction of the filter portion 83. And the perforated part 77b is formed.

  In addition, a plurality of gaps in the circumferential direction of the filter part 83 are arranged in the opening area 77c with a gap (constant gap E5) smaller than a gap between the opening areas 77c adjacent in the circumferential direction of the filter part 83 (constant gap E4). An opening 77a and a perforated portion 77b are formed.

  As shown in FIG. 16, three first regions 94 and one second region 95 are thereby formed in the filter portion 83. After smoking the cigarette 77, a substantially Y-shaped pattern is formed on the end face 83a of the filter portion 83 as a whole.

  FIG. 17 is a radial cross-sectional view of a portion where an opening region 78c of a cigarette 78 according to Modification 3 is formed. 18 is an end view of the filter portion 84 after smoking the cigarette 78 of FIG. As shown in FIG. 17, four opening regions 78 c are repeatedly formed in the filter portion 84 of the cigarette 78 at a constant interval E <b> 6 in the circumferential direction of the filter portion 84.

  In the opening region 78c, two openings 78a and perforations 78b are locally arranged at a constant interval E7 in the circumferential direction of the filter portion 84, respectively. The fixed interval E6 is larger than the fixed interval E7.

  The opening region 78c includes openings 78a and perforations 78b located at both ends in the circumferential direction of the filter portion 84 in each group of a plurality of openings 78a and perforations 78b locally provided in the filter portion 84. It corresponds to a formation region and a region between them.

  Thus, in the formation process of the modified example 3, a plurality of openings 78a are formed in a fixed pattern (a pattern in which one fixed interval E6 and one fixed interval E7 are successively arranged) repeated in the circumferential direction of the filter portion 84. And the perforated part 78b is formed.

  Further, a plurality of gaps in the circumferential direction of the filter part 84 are provided in the opening area 78c with a gap (constant gap E7) smaller than a gap between the opening areas 78c adjacent to the filter part 84 in the circumferential direction (constant gap E6). An opening 78a and a perforated portion 78b are formed.

  As a result, as shown in FIG. 18, four first regions 96 and one second region 97 are formed in the filter portion 84. After smoking the cigarette 78, a substantially cross-shaped pattern is formed on the end face 84a of the filter portion 84 as a whole.

  FIG. 19 is a radial cross-sectional view of a portion where an opening region 79c of a cigarette 79 according to Modification 4 is formed. 20 is an end view of the filter portion 85 of the cigarette 79 of FIG. 19 after smoking. As shown in FIG. 19, two opening regions 79 c are repeatedly formed in the circumferential direction of the filter portion 85 at a constant interval E <b> 8 in the filter portion 85 of the cigarette 79.

  In the opening region 79 c, seven openings 79 a and perforations 79 b are locally arranged at a constant interval E 9 in the circumferential direction of the filter portion 85. The fixed interval E8 is larger than the fixed interval E9. The opening region 79c is formed by closely gathering a plurality of (here, seven) openings 79a and perforations 79b.

  The opening region 79c includes openings 79a and perforations 79b located at both ends in the circumferential direction of the filter portion 85 in each group of a plurality of openings 79a and perforations 79b provided locally in the filter portion 85. It corresponds to a formation region and a region between them.

  As described above, in the formation process of the modification example 4, the plurality of openings 79a are arranged in a constant pattern (a pattern in which one constant interval E8 and six constant intervals E9 are successively arranged) repeated in the circumferential direction of the filter portion 85. And the perforated part 79b is formed.

  In addition, a plurality of gaps in the circumferential direction of the filter portion 85 are arranged in the opening area 79c with a gap (constant gap E9) smaller than the gap between the opening areas 79c adjacent in the circumferential direction of the filter part 85 (constant gap E8). An opening 79a and a perforated portion 79b are formed.

  As shown in FIG. 20, two first regions 98 and one second region 99 are thereby formed in the filter portion 85. After smoking the cigarette 79, a substantially I-shaped pattern is formed on the end face 85a of the filter portion 85 as a whole.

  In the first to fourth modifications, similarly to the first embodiment, the perforated part may be omitted and the opening region may be formed only by the opening part. Hereinafter, the second embodiment will be described focusing on differences from the first embodiment.

(Second Embodiment)
FIG. 21 is a partial side view of a cigarette manufacturing apparatus 130 according to the second embodiment. A laser processing device 133 is disposed below the rear portion of the filter mounting device 132. Similar to the laser processing device 33, the laser processing device 133 includes a control device 60, a laser oscillator 61, a rotating chopper 62, a magnifying lens 63, and a condenser lens 64. Further, the laser processing apparatus 133 has a plurality of guide rolls 68. Although not shown in FIG. 21, the rotary chopper 62, the magnifying lens 63, and the condenser lens 64 are also arranged on the back side of the paper surface of the laser processing apparatus 133.

  A chip paper roll 27 is pivotally supported at the lower part of the laser processing apparatus 133. The chip paper 28 fed out from the chip paper roll 27 is irradiated with a laser similarly to the first embodiment while being guided by a plurality of guide rolls 68. As a result, a plurality of openings in two rows extending in the feeding direction are formed in the chip paper 28. The plurality of openings in the two rows are formed at positions corresponding to the filter portions (see FIG. 7) of the two cigarettes arranged in the axial direction. The chip paper 28 in which a plurality of openings in two rows are formed is conveyed toward the suction drum 50 and the second cutting drum 51 in the drum row 40.

  The filter mounting device 132 of the second embodiment is a chip paper 28 in which a plurality of openings are formed in advance by a laser processing device 133, and the peripheral surface of one end of the filter portion and the peripheral surface of one end of the cigarette portion are integrated. Wind. That is, in the mounting process of the second embodiment, the cigarette 175 is manufactured using the chip paper 28 after the forming process is performed. As a result, it is possible to easily form an opening in the chip paper 28 without forming a perforated portion in the filter portion. Therefore, the size, shape, and position of the first region and the second region of the filter portion are adjusted, and the filter portion The degree of freedom in design of the pattern formed on the end face of the plate can be further improved.

  In the second embodiment, as the wrapping paper 22 (see FIG. 1) of the filter portion, for example, a paper material having high air permeability is used, and is introduced into the inside of the filter portion from the opening of the chip paper 28 through the wrapping paper 22. The amount of outside air may be increased. Thereby, the depth dimension of the 1st area | region in the radial direction of a filter part can be adjusted, and it can be made easy to form a desired pattern in the end surface of a filter part.

(Example)
The cigarette of Examples 1-5 which concern on 1st Embodiment and a modification, and Comparative Examples 1-2 was produced with the following method. In Examples 1-5 and Comparative Examples 1-2, a CORESTA standard cigarette using a research cigarette 2R4F manufactured by University of Kentucky for cigarette engraving, a circumferential length of 24 mm, a total length of the cigarette portion of 84 mm, and a total length of the filter portion of 27 mm. Was made. The vent hole (ventilation hole) originally formed at a position about 13 mm away from the end face of the filter portion in the axial direction of the filter portion was previously shielded with tape.

  An opening region having an opening having a predetermined diameter and a perforated portion having a depth of 1 mm was formed at a position 21 mm away from the end face of the filter portion in the axial direction of the filter portion. Using an automatic smoking device (Smoke Machine LM1 manufactured by Borgwald) with a puff volume of 35 ml, a puff interval of 58 sec, and a puff number of 9 times, confirm the pattern formed on the end face of the cigarette filter after smoking did.

  In Example 1, an opening region having five openings each having a diameter of 0.5 mm and five opening portions was repeatedly formed at a constant interval E1 in the circumferential direction of the filter portion (see FIG. 11). Thereby, after smoking the cigarette of Example 1, it confirmed that the substantially star-shaped pattern was formed in the end surface of a filter part as a whole (refer FIG. 12).

  In Comparative Example 1, an opening region having five openings each having a diameter of 0.5 mm and five perforations was repeatedly formed at uneven intervals in the circumferential direction of the filter portion. Thereby, after smoking the cigarette of the comparative example 1, it confirmed that the distorted substantially star-shaped pattern was formed in the end surface of a filter part.

  From the results of Example 1 and Comparative Example 1, in order to form a pattern with less distortion on the end face of the filter portion, it is considered desirable to make the interval between the opening regions adjacent in the circumferential direction of the filter portion constant. .

  In Example 2, four opening regions were repeatedly formed at a constant interval E6 in the circumferential direction of the filter portion. In the opening region, two openings each having a diameter of 0.5 mm and two perforations were formed in the circumferential direction of the filter portion (see FIG. 17). The constant interval between the openings adjacent in the circumferential direction of the filter portion in the opening region and the constant interval between the perforations adjacent in the circumferential direction of the filter portion in the opening region (both constant intervals E7) are 0. Set to 5 mm. Thereby, after smoking the cigarette of Example 2, it confirmed that the substantially cross-shaped pattern was formed in the end surface of a filter part as a whole (refer FIG. 18).

  In Comparative Example 2, in the same cigarette structure as in Example 2, the diameter of one opening and the perforated part in every other opening region is set to 0.7 mm, and the other opening and perforated part is set to 0. Set to 5 mm. Thereby, after smoking the cigarette of the comparative example 2, it confirmed that the substantially cross-shaped pattern distorted as a whole was formed in the end surface of a filter part.

  From the results of Example 2 and Comparative Example 2, in order to form a cross-like pattern with less distortion on the end face of the filter part, the diameters of the plurality of openings and the perforated parts are in the circumferential direction of the filter part. It is considered desirable to set the same.

  In Example 3, three opening regions were formed at a constant interval E2 in the circumferential direction of the filter portion (see FIG. 13). In the opening region, an opening and a perforation having a diameter of 0.5 mm were formed, and an opening and a perforation having a diameter of 0.2 mm were formed on both sides in the circumferential direction of the filter portion. The constant interval between the openings adjacent in the circumferential direction of the filter portion in the opening region and the constant interval between the perforations adjacent in the circumferential direction of the filter portion in the opening region (both constant intervals E3) are 0. Set to 5 mm. Thereby, after smoking the cigarette of Example 3, it confirmed that the substantially triangular pattern was formed in the end surface of a filter part as a whole (refer FIG. 14).

(Test 1)
CORESTA standard cigarettes having the same specifications as those of Examples 1 to 5 and Comparative Examples 1 to 2 were prepared, and 8 open areas each having an opening and a perforated part at regular intervals in the circumferential direction of the filter part. Comparative Examples 3 and 4 were produced by repeatedly forming more. In Comparative Example 3, the diameters of the opening and the perforated part were uniformly set to 0.3 mm. In Comparative Example 4, the diameters of the opening and the perforated part were uniformly set to 0.5 mm. The number of open regions in Comparative Examples 3 and 4 was set to 17 as an example.

  When the cigarettes of Comparative Examples 3 and 4 are smoked using the above smoking device, the peripheral area of the end face of any filter portion is colored lightly as a whole, and the area inside the peripheral area is darker. It was confirmed that it was difficult to form a pattern with a clear shape, only by coloring. Further, it was confirmed that as the diameters of the opening and the perforated part increased, the colored region on the end face of the filter part decreased toward the radial center of the filter part.

  In addition, it was confirmed from the results of tests performed separately that when the number of open regions was more than 8, the same results as in Comparative Examples 3 and 4 were obtained.

  From the results of Comparative Examples 3 and 4 and the like, when a clear pattern is to be formed on the end face of the filter portion, it is considered necessary to form a number of opening regions in the range of 2 to 8. . In addition, it is considered that the diameters of the openings and the perforations are preferably set to predetermined values according to, for example, the number of openings and the perforations and the arrangement positions.

(Test 2)
Examples 4, 5, and 6 were prepared in order by providing an opening region in the same arrangement as in Example 2 at positions spaced 11 mm, 17 mm, and 24 mm in the axial direction of the filter part from the end face of the filter part.

  When the cigarettes of Examples 4, 5, and 6 were smoked using the smoking device, the filter part was formed on the end face of the filter part as the position where the opening area was provided in the axial direction of the filter part was away from the end face of the filter part. It was confirmed that the contour of the pattern to be blurred is blurred and the area of the second region tends to decrease. In Example 6, it was confirmed that the degree of blurring of the contour of the pattern was relatively large.

  Moreover, in the test result performed separately, when an opening region is provided at the same arrangement position as in Example 2 at a position 10 mm away from the end face of the filter part in the axial direction of the filter part, a pattern is formed on the end face of the filter part. It was confirmed that it could be clearly formed.

  In addition, if the opening area is provided at a position separated from the end face of the filter part in the axial direction of the filter part by a value within a range of less than 10 mm, diffusion of outside air introduced from the opening area to the filter part may be insufficient, or the smoker However, when the cigarette is picked up, the opening region may be blocked, which may make it difficult to form a pattern on the end face of the filter portion.

  From the results of Examples 4, 5, and 6 and the like, when a clear pattern is to be formed on the end surface of the filter portion, the filter portion is separated from the end surface of the filter portion by a value in the range of 10 mm to 17 mm in the axial direction. It may be desirable to form an open region at the location.

  The present invention is not limited to the above embodiments, and the configuration and method thereof can be changed, added, or deleted without departing from the spirit of the present invention. The above embodiments may be arbitrarily combined with each other. The smoking article is not limited to cigarettes (cigarettes) and may be other than this.

  As described above, according to each aspect of the present invention, when manufacturing a smoking article having a filter part with a pattern formed on the end face, it has an excellent effect of preventing a decrease in manufacturing efficiency and an increase in manufacturing cost. . Therefore, it is beneficial to apply widely as a method for producing a smoking article and a smoking article that can exhibit the significance of this effect.

28 Chip paper 30, 130 Cigarette manufacturing device 32, 132 Filter mounting device 33, 133 Laser processing device 71 Cigarette part (smoking part)
75-79, 175 cigarette (smoking article)
75a-79a Opening 75c-79c Opening region 81-85 Filter part 81a-85a End face of filter part

Claims (9)

The tip of the peripheral surface of the one end of the filter portion and the peripheral surface of the one end of the smoking portion is tipped in a state where one end of the rod-shaped filter portion and one end of the rod-shaped smoking portion abut each other in the axial direction. A mounting step of mounting the filter portion on the smoking portion by integrally winding with paper,
Two or more and eight or less opening regions having at least one opening for circulating outside air from the surface of the filter portion toward the inside of the filter portion are arranged in the circumferential direction of the filter portion with respect to the chip paper. A method of manufacturing a smoking article, the method comprising: forming a pattern in a repeated pattern.   The method for producing a smoking article according to claim 1, wherein, in the forming step, the opening region is formed by concentrating a plurality of the openings.   The said formation process forms the said several opening part in the said circumferential direction in the said opening area in the said opening area at intervals narrower than the space | interval between the said opening areas adjacent to the said circumferential direction. The manufacturing method of the smoking article as described in any one of.   In the forming step, the opening is formed between a position that is 10 mm away from an end surface of the other end of the filter portion in the axial direction of the filter portion and an end surface on the one end side of the filter portion. Item 4. The method for producing a smoking article according to any one of Items 1 to 3.   In the said formation process, the said opening part is formed by irradiating a laser with respect to the said chip paper after performing the said mounting process, The manufacture of the smoking article of any one of Claims 1-4 Method.   In the forming step, a plurality of perforations extending in the radial direction of the filter portion from the surface of the filter portion toward the inside of the filter portion by irradiating the filter portion with the laser through the opening. The manufacturing method of the smoking article of Claim 5 which forms a part.   The method for manufacturing a smoking article according to claim 5 or 6, wherein in the forming step, the laser beam is spot-irradiated on the chip paper while rotating the filter portion in the circumferential direction.   5. The method for manufacturing a smoking article according to claim 1, wherein the chip paper in which the opening is formed in the forming step is used in the mounting step. A rod-shaped filter part;
A rod-shaped smoking part,
Winding integrally around the peripheral surface of the one end of the filter portion and the peripheral surface of the one end of the smoking portion in a state where the one end of the filter portion and the one end of the smoking portion are butted against each other in the axial direction Chip paper, and
Two or more and eight or less opening regions having at least one opening for circulating outside air from the surface of the filter portion toward the inside of the filter portion are arranged in a circumferential direction of the filter portion with respect to the chip paper. A smoking article that is formed in a repeating pattern.

Images