WO2020070871A1

WO2020070871A1 - Production method for smoking article

Info

Publication number: WO2020070871A1
Application number: PCT/JP2018/037334
Authority: WO
Inventors: 法生山本; 哲也奥山; 井上　洋; 佐藤　大輔; 誠岸
Original assignee: 日本たばこ産業株式会社
Priority date: 2018-10-05
Filing date: 2018-10-05
Publication date: 2020-04-09
Also published as: EP3861869A4; JPWO2020070871A1; CN112804890B; CN112804890A; EP3861869A1; EP3861869B1

Abstract

Provided is a production method for a smoking article provided with a filter segment and a cigarette segment that contains a cigarette rod and a cooling segment, the production method comprising: (A) a step for preparing a double-length cigarette segment including a double-length cigarette rod which has a length that is twice the length of the cigarette rod and which can be separated into two at the middle in the longitudinal direction thereof, and two cooling segments which are in contact with opposite ends of the double-length cigarette rod; (B) a step for separating the double-length cigarette segment into two at the middle to produce a pair of separated cigarette segments, inverting the cigarette segments, and arranging the cigarette segments separated from one another such that the cigarette rod portions are positioned on the outerside and have the same longitudinal axis, and such that the cooling segments face one another; (C) a step for preparing a double-length filter segment having a length that is twice the length of the filter segment, and disposing the double-length filter segment in the separation space such that the opposite ends of the double-length filter segment are in contact with the cooling segment-side ends of the cigarette segments to produce a composite segment; (D) a step for wrapping and integrating the composite segment in a single sheet of tipping paper to produce a double-length smoking article having a length that is twice the length of the smoking article; and (E) a step for cutting the double-length smoking article at the middle in the longitudinal direction thereof to obtain smoking articles.

Description

Manufacturing method of smoking articles

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

Smoking articles, such as tobacco with tobacco rods, cooling segments, and filter segments, have traditionally been manufactured using multiple tipping papers. For example, Patent Document 1 discloses a method of manufacturing a smoking article by winding a plurality of members with a plurality of chip papers. Specifically, Patent Literature 1 discloses that a polylactic acid filter, a hollow filter, and a tobacco rod are disposed adjacent to each other in this order, and these are wound with a second chip paper, and then the polylactic acid filter of the wound member is used. Disclosed is a method of arranging a mouthpiece filter adjacent to an end and winding these with a first tipping paper. However, in this method, if a gap is formed in the joint between the members, air leakage or the like occurs. Therefore, the second tip paper does not completely cover the polylactic acid filter. It is characterized by being provided.

WO 2017/081144

(4) The method described in Patent Document 1 requires precise control of the size of the chip paper, and there is a limitation in manufacturing. In particular, the inventors have found that in the method of Patent Document 1, when manufacturing a smoking article through a step of inverting a member wound with the second chip paper, the size of the chip paper is not quite tightly controlled. And found that production became extremely difficult. In addition, if a plurality of steps of connecting with chip paper are included, the rod may be damaged. In view of such circumstances, an object of the present invention is to provide a method for efficiently manufacturing a smoking article.

The inventors have solved the above-mentioned problem by making the step of connecting with chip paper only once. That is, the above problem is solved by the present invention described below.
[Aspect 1] A method for manufacturing a smoking article comprising a tobacco segment including a tobacco rod and a cooling segment, and a filter segment,
(A) preparing a double-length tobacco rod that is twice as long as the tobacco rod and is separable at its longitudinal center, and including two cooling segments abutting on both ends thereof;
(B) The double-length tobacco segment is separated at the central portion to prepare a separated pair of tobacco segments, and these are inverted so that both longitudinal axes are the same and the cooling segments face each other. The step of disposing them so that
(C) A double-length filter segment having a length twice as long as the filter segment is prepared, and the composite segment is arranged in the separated portion such that both ends thereof are in contact with the cooling segment side end of the tobacco segment. The process of preparing,
(D) wrapping the composite segment with one piece of chip paper and integrating to produce a double-length smoking article having a length twice as long as the smoking article; and (E) producing the double-length smoking article. Cutting at a central portion in the longitudinal direction into a smoking article.
[Aspect 2] The production method according to Aspect 1, wherein the step (A) further comprises a step of adding a fragrance to the double-length tobacco rod.
[Aspect 3] The production method according to

Aspect

1 or 2, wherein the step (A) further comprises a step of wrapping the double-length tobacco rod with a wrapper.
[Aspect 4] The method according to any one of Aspects 1 to 3, wherein the wrapper is a paper containing a fragrance.
[Aspect 5] In the step (A), a double-length tobacco rod having twice the length of the tobacco rod and a double-length tobacco segment including two cooling segments abutting on both ends thereof are prepared. 5. The method according to any one of aspects 1 to 4, wherein the step of preparing a double-length tobacco segment is performed by cutting the long tobacco segment at a central portion in the longitudinal direction.
[Aspect 6] The method according to any one of Aspects 1 to 5, wherein the filter segment comprises an acetate filter and a center hole filter.
[Aspect 7] The method according to any one of Aspects 1 to 6, wherein the smoking article includes a tobacco rod, a cooling segment, and a filter segment in this order in a downstream direction.
[Aspect 8] The method according to any one of Aspects 1 to 7, wherein a diameter of the tobacco rod is larger than a diameter of an adjacent member.
[Aspect 9] The manufacturing method according to Aspect 8, wherein the diameter of the tobacco rod is 0.05 to 0.15 mm larger than the diameter of the adjacent member.
[Aspect 10] The manufacturing method according to Aspect 8, wherein the diameter of the tobacco rod is 0.5 to 2.5% larger than the diameter of the adjacent member.
[Aspect 11] The manufacturing method according to any one of Aspects 1 to 10, wherein the rigidity of a member adjacent to the tobacco rod is greater than the rigidity of the tobacco rod.
[Aspect 12] The method according to any one of Aspects 1 to 11, wherein the cooling segment includes a paper tube having a plurality of openings in a circumferential direction.
[Aspect 13] The manufacturing method according to Aspect 12, wherein the cooling segment includes a paper tube, and further includes a step of providing a plurality of openings by laser processing in a circumferential direction of the paper tube.
[Aspect 14] In the step (D), a precursor in which a part of the chip paper is adhered to the circumferential surface of the composite segment is prepared, and the precursor is provided to face the rolling drum and the circumferential surface. Placed between the rolling hands that have been performed, is a step performed by rotating the precursor on the circumferential surface of the rolling drum,
14. The manufacturing method according to any one of aspects 1 to 13, wherein a portion of the rolling drum or the rolling hand facing the tobacco rod portion includes a concave portion for forming a gap between the tobacco rod portion.

According to the present invention, a method for efficiently manufacturing a smoking article can be provided.

It is a figure showing the outline of a smoking article. It is a figure showing one mode of the manufacturing method of the present invention. It is a figure which shows one aspect of the process (A) of the manufacturing method of this invention. It is a figure explaining a measuring method of rigidity. It is a figure showing one mode of an apparatus which performs a manufacturing method of the present invention. FIG. 3 is a diagram illustrating one embodiment of a step (B). It is a figure showing an aspect of a process (D). It is a figure showing an aspect of a process (D).

The present invention relates to a method for manufacturing a smoking article including a tobacco rod, a cooling segment, and a filter segment. Hereinafter, the present invention will be described in detail. In the present invention, X to Y include the end values X and Y.

1. Smoking Article The smoking article of the present invention comprises a tobacco rod, a cooling segment, and a filter segment. FIG. 1 (i) shows one embodiment of the smoking article of the present invention. In the figure, 100 is a smoking article, 1 is a tobacco rod, 3 is a cooling segment, 5 is a filter segment, and 7 is tip paper.

(1) Tobacco rod A tobacco rod is a substantially columnar member for generating a flavor component contained in tobacco raw material, and includes a tobacco filler and a wrapping paper wound around the tobacco filler. The tobacco filler is not limited, and for example, tobacco cuts, tobacco sheets and the like can be used. Specifically, the tobacco cut obtained by cutting the dried tobacco leaves to a width of 0.8 to 1.2 mm may be filled in the wrapping paper. Also, dried tobacco leaves are ground and homogenized to an average particle size of about 20 to 200 μm, processed into a sheet, cut into 0.8 to 1.2 mm width, and filled into wrapping paper. May be. The sheet may be gathered, folded, or swirled without being cut, and then filled into the wrapping paper. The sheets may be cut into strips, and these may be filled into the wrapping paper concentrically or so that the longitudinal direction of the strips is parallel to the longitudinal direction of the tobacco rod.

ロッド The tobacco rod 1 may generate an aerosol with heating. It is preferable to add an aerosol source such as a polyol such as glycerin, propylene glycol or 1,3-butanediol to the tobacco filler in order to promote the generation of aerosol. The added amount of the aerosol source is preferably 5 to 50% by weight, more preferably 10 to 30% by weight, based on the dry weight of the tobacco filler. In addition, the tobacco rod may include a fragrance such as menthol. The length of the tobacco rod 1 is not limited, but is preferably 15 to 25 mm. The diameter is not limited, but is preferably 6.5 to 7.5 mm. However, when the rigidity of the adjacent member is higher than the rigidity of the tobacco rod, the diameter of the tobacco rod is preferably larger than the diameter of the adjacent member. This is because the deformation of the tobacco rod can be reduced. From this viewpoint, the diameter of the tobacco rod is preferably 0.5 to 2.5% larger than the diameter of the adjacent member, and more preferably 1.0 to 2.0% larger. In actual dimensions, the diameter of the tobacco rod is preferably about 0.05 to 0.15 mm larger than the diameter of the adjacent member. Adjacent members include cooling segments and filter segments.

“Stiffness” in the present invention means resistance when a member is deformed as disclosed in JP-T-2016-523565, paragraphs 0010 to 0014. The rigidity can be obtained from the change in diameter before and after applying the load F to the side surface of the tobacco rod. In FIG. 4, when the diameter of the tobacco rod before the load F is applied is Ds and the diameter after the load is Dd, the amount of depression is d = Ds-Dd, and the rigidity is defined by the following equation. . The same applies to other members.
Rigidity (%) = Dd / Ds × 100

(2) Cooling segment The cooling segment is a member for cooling the flavor component and aerosol generated in the tobacco rod 1. The cooling segment 3 may be a hollow paper tube. The paper tube is preferably made of a cardboard having higher rigidity than the wrapping paper or the chip paper. The paper tube may be provided with an opening (ventilation). Preferably, a plurality of openings are provided along the circumference of the paper tube. From the viewpoint of working efficiency, it is preferable that the aperture is provided by subjecting the finished smoking article to laser processing. Further, the cooling segment 3 may be filled with a gathered sheet in order to increase the heat exchange efficiency. Although the size of the cooling segment 3 is not limited, the length is preferably 15 to 25 mm, and the diameter is preferably 5.5 to 7.5 mm. However, when the rigidity of the member adjacent to the cooling segment 3 is lower than the rigidity of the cooling segment 3, the diameter of the cooling segment 3 is preferably 0.5 to 2.5% smaller than the diameter of the adjacent member. , 1.0 to 2.0%. Generally, when the cooling segment 3 includes a paper tube formed of a cardboard, the rigidity of the segment is higher than the rigidity of the tobacco rod.

(3) Filter segment The filter segment is a member provided with a filter. As the filter, a known filter member such as an acetate filter or a paper filter can be used. The paper filter is a filter filled with paper, which is prepared by processing paper with a crepe roller or the like, wrinkling the paper and winding it with a plug winding paper. The acetate filter is a filter filled with cellulose acetate fibers. As shown in FIG. 1 (ii), the filter segment 5 preferably includes a filter 51 and a center hole 53. As the center hole, for example, one in which a space is provided in the center of an acetate filter can be used. The length of the filter segment 5 is not limited, but is preferably 10 to 20 mm. When both a center hole and an acetate filter are arranged as filter segments, the order is not limited. Further, individual members may be wound by a filter wrapping paper (filter inner wrapper), and they may be connected by a filter molded paper (filter outer wrapper). Although the diameter of the filter segment is not limited, it is preferable that the filter segment has substantially the same diameter as the other segments other than the tobacco rod. This is because breakage and wrinkling of the chip paper can be suppressed.

(4) Chip paper Chip paper refers to paper used to connect two or more of a tobacco rod, a cooling segment, and a filter segment. On the other hand, wrapping paper refers to paper for wrapping individual members constituting a tobacco rod, a cooling segment, or a filter segment. For example, as described above, when the filter segment includes the center hole and the acetate filter, the paper around the center hole and the paper around the acetate filter are each a paper roll.

原 The base paper used for the chip paper and the wrapping paper is not limited, and examples thereof include those using cellulose fibers. As such a cellulose fiber, any of a plant-derived fiber and a chemically synthesized fiber may be used, or a mixture thereof may be used. Examples of plant-derived fibers include pulp such as flax fiber, wood fiber, and seed fiber, and may be unbleached colored unbleached pulp, but in order to obtain a white and clean appearance, an oxidizing agent, Use of bleached pulp bleached with a bleaching agent such as a reducing agent is preferred.

巻 In the case of ordinary cigarette wrapping paper, an alkali metal citrate or the like is used as a normal combustion regulator (combustion aid or the like) that can affect the natural burning speed of the wrapping paper. In the present invention, it is preferable to use a heating type smoking article instead of a combustion type. In this case, it is not necessary to burn the wrapping paper, so that the wrapping paper may not contain a combustion regulator.

The lower limit of the basis weight of the wrapping paper is preferably 30 g / m ² or more, more preferably 35 g / m ² or more, and further preferably 40 g / m ² or more. The upper limit is preferably 65 g / m ² or less, more preferably 50 g / m ² or less. The lower limit of the basis weight of the chip paper is preferably 20 g / m ² or more, more preferably 25 g / m ² or more, and further preferably 30 g / m ² or more. The upper limit is preferably 50 g / m ² or less, more preferably 45 g / m ² or less, and even more preferably 40 g / m ² or less. The grammage can be measured by a method specified in JIS P8124.

2. Manufacturing Method FIG. 2 shows an outline of this step. In the figure, “w” indicates double length. For example, 5w indicates a double-length filter segment. Although the manufacturing method of the present invention can be carried out using any device, it is preferable to use a device having a plurality of drums as shown in FIG. 5 and supplying each member from above, for example. It is preferable that one drum does not have a plurality of functions but has one function. This is because occurrence of defects can be reduced in high-speed manufacturing. Hereinafter, each step will be described using the case of using the apparatus as an example. The number of drums having a supply, reception, transfer, or separation function may be one or plural in each unit.

(1) Step A
In this step, a double-length tobacco rod 1w 'having a length twice as long as the tobacco rod 1 and separable at the longitudinal center thereof, and a double-length tobacco segment 10w including two cooling segments 3 abutting on both ends thereof. Prepare The process includes preparing a double-length tobacco segment including a double-length tobacco rod 1w having a length twice as long as the tobacco rod, and two cooling segments 3 abutting on both ends of the double-length tobacco segment. It may be implemented by cutting at the center in the longitudinal direction. For example, this step can be performed in the first unit 81 to the third unit 83 in FIG. 81f is a supply device for the

cooling segment

3, 81p is a take-out drum, and 81s is a separation drum. The pair of cooling segments 3 supplied from the supply device 81f is transferred to a holding unit provided on the circumferential surface of the take-out drum 81p. Next, the pair of tobacco rods 1 is delivered to the separation drum 81s, transported, and separated at the holding unit.

において In the

second unit

82, 82f is a supply device for the double-

length tobacco rod

1w, 82t is a transfer drum, 82p is a take-out drum, and 82a is a take-up drum. The pair of cooling segments 3 that are spaced apart are transferred to the transfer drum 82t as they are. On the other hand, the double-length tobacco rod 1w supplied from the supply device 82f is delivered to a holding portion provided on the circumferential surface of the take-out drum 82p, and then delivered to the take-up drum 82a. At this time, the two ends of the double-length tobacco rod 1w are arranged at the separated portions of the pair of cooling segments 3 that are separated from each other so as to abut the ends of the cooling segments 3.

In the

third unit

83, 83c is a cutter drum, 83c 'is a cutter, and 83s is a separation drum. A segment provided with a pair of cooling segments 3 at both ends of the double-length tobacco rod 1w is delivered to the cutter drum 83c, and cut by a cutter 83c 'at a central portion in the longitudinal direction of the double-length tobacco rod 1w.

In this step, the double-length tobacco rod 1w or the separable double-length tobacco rod 1w 'may be wrapped with a wrapper. The wrapper is a sheet-like member, such as paper and a polymer sheet. Examples of the paper include known papers such as chip paper, and examples of the polymer sheet include a biodegradable polymer sheet such as a polylactic acid sheet. For example, by wrapping with a decorated wrapper, it is possible to provide a smoking article decorated on the upstream side (see FIG. 3 (2)). Further, a fragrance may be added to the double-length tobacco rod 1w or the separable double-length tobacco rod 1w '. For example, if the double-length tobacco rod 1w or the like is wrapped with a wrapper containing a fragrance, a smoking article containing a fragrance can be provided at the upstream portion (see FIG. 3A). The flavor is not limited, and a known flavor such as menthol can be used. The amount to be added is not limited, and may be a known amount. In FIG. 3, F is a portion to which a fragrance is added, and F 'is a paper containing a fragrance. As described above, according to this step, it is possible to provide a function in the upstream portion when a smoking article is obtained.

(2) Step B
In this step, the double-length tobacco segment 1w is separated at the center portion into a pair of separated tobacco segments 10, which are inverted so that the tobacco rod 1 is located outside and the longitudinal axes of both are the same. And the cooling segments 3 are spaced apart from each other so as to face each other. This step can be performed in the fourth unit 84 in FIG. 84i and 84i 'are reversing drums. The reversing mechanism will be described with reference to FIG. The guide G on the reversing drum 84i is a holding section for holding the tobacco segment 10, and is installed so as to be rotatable on the drum about one corner. The tobacco segment 10 held by the guide G indicated by the dotted line moves to the position indicated by the solid line by rotating the guide G with the rotation of the reversing drum 84i. Next, the tobacco segment 10 is transferred to a guide G 'indicated by a dotted line of the reversing drum 84i'. The guide G 'slides on the reversing drum 84i' and moves to the position indicated by the solid line at which the distance between the pair of tobacco segments 10 becomes a desired value. In this way, the pair of tobacco segments 10 is inverted.

(3) Step C
In this step, a double-length filter segment 5w having a length twice as long as that of the filter segment 5 is prepared, and arranged at the separated portion such that both ends thereof are in contact with the end of the tobacco segment 10 on the cooling segment 3 side. Prepare the composite segment. This step can be performed in the fifth unit 85 of FIG. In the figure, 85f is a supply device for the double-

length filter segment

5w, 85p is a take-out drum, and 85a is a take-up drum. The segment prepared in the previous step is delivered to the take-up drum 85a. On the other hand, the double-length filter segment 5w supplied from the supply device 85f is delivered to a holding portion provided on the circumferential surface of the take-out drum 85p, and then to the take-up drum 85a. At this time, the composite segment 90 is formed at the separated portion of the pair of tobacco segments 10 arranged so that both ends of the double-length filter segment 5w abut on the ends of the tobacco segment 10.

(4) Step D
In this step, the composite segment is wrapped and integrated with one piece of chip paper 7 to obtain a double-length smoking article 100w. As the chip paper, paper commonly used in this field can be used. The chip paper may be coated with a known adhesive, whereby the separable composite segments are integrated into a non-separable state. At this time, the tip paper 7 does not need to cover the entire area of the tobacco rod 1. When the length of the tobacco rod 1 is X, the area covered by the tipping paper 7 starts from the joint surface between the tobacco rod 1 and the cooling segment 3 and extends from 0.2X to 0.4X in the longitudinal direction of the tobacco rod 1. It is preferable that the region is a region ending at the position. When the area covered by the chip paper 7 is in this range, there is an advantage that when the tobacco rod 1 is externally heated, the thermal conductivity can be increased.

(4) In the conventional method, each time a segment is prepared by combining a plurality of members, it is wrapped with chip paper, so that a plurality of chip papers are required. However, in the present invention, since one chip paper composite segment is wrapped, a step on a product caused by using a plurality of chip papers can be avoided, and the occurrence rate of defective products in manufacturing can be reduced.

This step can be performed in the sixth unit 86 in FIG. In the figure, 86f is a supply device for the

chip paper

7, 86t is a transfer drum, 86r is a rolling drum, and 86h is a rolling hand. The rolling drum is a holding unit that holds a member on a circumferential surface, and is a drum including a holding unit that allows a member such as a segment to rotate around a central axis in the longitudinal direction. The rolling hand is means for forming a gap having a certain distance between the rolling hand and the circumferential surface of the rolling drum. The composite segment 90 is delivered to the transfer drum 86t and then to the rolling drum 86r. On the other hand, a part of the chip paper 7 supplied from the supply device 86f is adhered to the circumferential surface of the segment on the rolling drum 86r to form a precursor 92 (see FIG. 7). The precursor 92 includes the chip paper 7 adhered to the composite segment 90 like a flag. That is, a part of the chip paper 7 is adhered to the circumferential surface of the composite segment 90, but the other part is free. The precursor 92 is fixed to the holding portion on the circumferential surface of the rolling drum 86r by suction or the like, and is transferred to a gap formed between the rolling drum 86r and the rolling hand 85h. When passing through the gap, the entire circumferential surface of the precursor 92 is wrapped with the tip paper 7 to form a double-length smoking article 100w (see FIG. 7).

As described above, in the present invention, the diameter of the tobacco rod 1 is preferably larger than the diameter of the cooling segment 3 adjacent thereto. In this case, if the surfaces of the rolling drum 86r and the rolling hand 86h are flat, the surfaces and the tobacco rod 1 are excessively in contact with each other (FIG. 8 (1)). This causes a problem of so-called dropping of the packing material. Further, twisting due to the circumferential difference occurs, and defects such as wrinkling of the product occur. Therefore, in the present invention, as shown in FIGS. 8 (2) and 8 (3), a concave portion is provided on a surface of the rolling drum 86r or the rolling hand 86h facing the tobacco rod 1, and a gap is formed between the rolling drum 86r and the tobacco rod 1. Preferably, it is formed. FIGS. 8 (2) and 8 (3) show a mode in which a concave portion is provided in the rolling hand 86h. However, the concave portion may be provided in the rolling drum 86r or both. The depth of the recess (T in FIGS. 8 (2) and (3)) is appropriately adjusted, but is preferably 0.05 to 0.15 mm. The recess need not be provided on the entire surface facing the tobacco rod 1. As shown in FIG. 8, the concave portion may be provided on a part of the surface facing the tobacco rod 1. However, in order to securely bond the tobacco rod and another member with the tip paper, it is preferable that there is no recess near the boundary between the two members.

(4) Step E
In this step, the double-length smoking article 100w is cut at the center in the longitudinal direction. By this step, a pair of smoking articles 100 can be manufactured. This step may further include a step of inverting one smoking article 100 and aligning the directions of the two smoking articles 100.

This step can be performed in the seventh unit 87 in FIG. In the figure, 87c is a cutter drum, 87c 'is a cutter, and 87a is a take-up drum. The double-length smoking article 100w is delivered to the cutter drum 87c, and cut at the center in the longitudinal direction to form the smoking article 100. The smoking article 100 is delivered to the take-off drum 87a, separated and isolated as a product.

According to the present invention, even when another member having a smaller diameter is arranged adjacent to the tobacco rod, it is possible to avoid a defect such as a rolling jam, so that good rolling can be performed. Further, since one chip paper is used, it is advantageous in terms of cost. Further, in the conventional method using a plurality of chip papers, a step is formed in the smoking article because a step is generated in the smoking article, but such a measure is required in the manufacturing method of the present invention.

[Example 1]
The following members were prepared.
Double length tobacco rod with a diameter of 7.0 mm and a length of 40.0 mm (manufactured by Japan Tobacco Inc.)
As a cooling segment, a paper tube with a diameter of 6.9 mm and a length of 20.0 mm, a diameter of 6.9 mm, consisting of a center hole (8.0 mm) / double-length acetate filter (14.0 mm) / center hole (8.0 mm) Long filter segment 24.0mm x 80.0mm chip paper

分離 A separable double-length tobacco rod was placed at the center in the longitudinal direction, and paper tubes were arranged at both ends to obtain separable double-length tobacco segments (step A). The separable double-length tobacco segment was separated at the center to prepare a pair of separated tobacco segments, which were inverted and spaced apart (step B). At this time, the tobacco rod portion was located outside and the longitudinal axes of both were the same. A double-length filter segment was placed in the space so that both ends of the filter segment were in contact with the end of the tobacco segment on the cooling segment side, to obtain a composite segment (Step C). The composite segment was wrapped and integrated with one piece of chip paper to obtain a double-length smoking article having a length twice that of the smoking article (Step D). The double-length smoking article was cut at the center in the longitudinal direction to obtain two smoking articles (Step E).

DESCRIPTION OF SYMBOLS 1 Tobacco rod 1w Double-length tobacco rod 1w 'Separable double-length tobacco rod 3 Cooling segment 5 Filter segment 5w Double-length filter segment 51 Acetate filter 53 Center hole 7 Chip paper 10 Tobacco segment

F Fragrance-added part F 'Fragrance-containing part wrapped with paper

80 Manufacturing equipment

81 1st unit 81f Supply device 81s Separation drum

82 second unit

82f supply device

82t transfer drum 82p take-out drum 82a take-up drum

83 Third unit 83c Cutter drum 83C 'Cutter

84 fourth unit 84i reversing drum 84'i reversing drum

85 fifth unit 85f supply device 85p take-out drum 85a take-up drum

86 6th unit 86f Chip paper supply device 86t Transfer drum 86r Rolling drum 86h Rolling hand

87 7th unit 87c Cutter drum 87c 'Cutter 87a Take-up drum

90 Composite segment 92 Precursor

100 smoking articles 100w double-length smoking articles

Claims

A method of manufacturing a smoking article comprising a tobacco segment including a tobacco rod and a cooling segment, and a filter segment,
(A) preparing a double-length tobacco rod that is twice as long as the tobacco rod and is separable at its longitudinal center, and including two cooling segments abutting on both ends thereof;
(B) The double-length tobacco segment is separated at the central portion to prepare a separated pair of tobacco segments, and these are inverted so that both longitudinal axes are the same and the cooling segments face each other. The step of disposing them so that
(C) A double-length filter segment having a length twice as long as the filter segment is prepared, and the composite segment is arranged in the separated portion such that both ends thereof are in contact with the cooling segment side end of the tobacco segment. The process of preparing,
(D) wrapping the composite segment with one piece of chip paper and integrating to produce a double-length smoking article having a length twice as long as the smoking article; and (E) producing the double-length smoking article. Cutting at a central portion in the longitudinal direction into a smoking article.
The method according to claim 1, wherein the step (A) further comprises a step of adding a fragrance to the double-length tobacco rod.
The method according to claim 1 or 2, wherein the step (A) further comprises a step of wrapping the double-length tobacco rod with a wrapper.
製造 The method according to any one of claims 1 to 3, wherein the wrapper is a paper containing a fragrance.
The step (A) comprises preparing a double-length tobacco segment including a double-length tobacco rod having a length twice as long as the tobacco rod, and two cooling segments abutting on both ends thereof. The production method according to any one of claims 1 to 4, wherein a step of preparing a double-length tobacco segment by cutting at a central portion in a longitudinal direction thereof.
(6) The method according to any one of (1) to (5), wherein the filter segment includes an acetate filter and a center hole filter.
The method according to any one of claims 1 to 6, wherein the smoking article includes a tobacco rod, a cooling segment, and a filter segment in this order in a downstream direction.
(8) The method according to any one of (1) to (7), wherein the diameter of the tobacco rod is larger than the diameter of an adjacent member.
The method according to claim 8, wherein the diameter of the tobacco rod is 0.05 to 0.15 mm larger than the diameter of the adjacent member.
The method according to claim 8, wherein the diameter of the tobacco rod is 0.5 to 2.5% larger than the diameter of an adjacent member.
The method according to any one of claims 1 to 10, wherein the rigidity of the member adjacent to the tobacco rod is greater than the rigidity of the tobacco rod.
The method according to any one of claims 1 to 11, wherein the cooling segment comprises a paper tube having a plurality of openings in a circumferential direction.
The manufacturing method according to claim 12, wherein the cooling segment includes a paper tube, and further comprising a step of providing a plurality of openings by laser processing in a circumferential direction of the paper tube.
In the step (D), a precursor in which a part of the chip paper is adhered to a circumferential surface of the composite segment is prepared, and the precursor is provided with a rolling drum and a rolling hand provided to face the circumferential surface. A step performed by rotating the precursor on the circumferential surface of the rolling drum,
14. The manufacturing method according to claim 1, wherein a portion of the rolling drum or the rolling hand facing the tobacco rod portion includes a concave portion for forming a gap between the tobacco rod portion.