CN113453567A

CN113453567A - Method of manufacturing smoking article

Info

Publication number: CN113453567A
Application number: CN201980092738.6A
Authority: CN
Inventors: 片山和彦; 新川雄史; 藤田亮治; 山本法生
Original assignee: Japan Tobacco Inc
Current assignee: Japan Tobacco Inc
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2021-09-28
Anticipated expiration: 2039-03-22
Also published as: TW202034800A; RU2771509C1; EP3895564A4; EP3895564A1; JPWO2020194398A1; CN113453567B; WO2020194398A1

Abstract

A method of manufacturing a smoking article (1) comprises: a first arrangement step of forming a first connection body (13) in which the member (2) for winding up, the heat source (3), the fragrance source material (12), the heat source (3), and the member (2) for winding up are arranged in a row in this order; a first winding step of integrally winding up the first connected body (13) by the first roll paper (6) to form a first continuous body (14); a first cutting step of forming two intermediate rods (15) in which fragrance sources (4) each formed by dividing the winding member (2), the heat source (3), and the fragrance source material (12) into two parts are sequentially arranged in a row; a second arrangement step of forming a second connection body (18) in which the intermediate rod (15), the filter material (16), and the intermediate rod (15) are arranged in a row in this order; a second winding step of integrally winding up the second connected body (18) by the second roll paper (7) to form a second continuous body (19); and a second cutting step of cutting the second continuous body (19) into two at the filter material (16) to form two smoking articles (1) in which the rolling-up member (2), the heat source (3), the flavor source (4), and the filter material (16) are arranged in a row in this order, and the filter elements (5) are formed by dividing the filter material (16) into two.

Description

Method of manufacturing smoking article

Technical Field

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

Background

Patent document 1 discloses a smoking article in which a first multi-stage component element, which is a combustible carbonaceous heat source, an aerosol-forming substrate, and an airflow guide element (annular member) component element, are wrapped with an outer wrapper, and a second multi-stage component element, which has an expansion chamber and a mouthpiece. At the end of the smoking article, a removable cap is positioned adjacent the heat source, the cap being wrapped by a portion of the wrapper of the first multi-segment component.

Then, a series of the first multi-stage constituent elements continuously wrapped are cut at the portion of the airflow guide element using a cutter, a lid is formed of the same material as the airflow guide element, and a smoking article is manufactured by combining with the second multi-stage constituent elements.

The segments constituting the first and second multi-stage constituent elements other than the cover are fed from the hopper to a moving delivery path, and are formed into a connected body by a compactor.

Documents of the prior art

Patent document

Patent document 1: japanese unexamined patent publication No. 2016-536673

Disclosure of Invention

Problems to be solved by the invention

In patent document 1, the segments constituting the multi-segment component other than the lid are supplied in a cut state into a molded shape constituting the shape of the smoking article or the like. Therefore, even if the segment is short and has a small aspect ratio (aspect ratio), it must be placed and supplied in an appropriate posture on the moving delivery path.

Further, even after the small segment is placed on the delivery path, the small segment must be conveyed while maintaining the initial posture so as not to rotate. Therefore, if the posture of the segment is deformed and the segment is rotated during the feeding and the conveying of the segment, the quality of the finally manufactured smoking article may be poor. In addition, in order to prevent such a disadvantage, it is necessary to prepare a device of a complicated mechanism for preventing the rotation of the small segments, and therefore, the productivity of the smoking article deteriorates.

The lid is formed by cutting the airflow guide element in the manufacturing process of the smoking article. Therefore, the cutting process is only required to form the cap, which also deteriorates the productivity of the smoking article.

In addition, in the case where a connected body configured together with other components is wound up by the roll paper with the lid positioned at the end portion to manufacture a smoking article, the lid positioned at the end portion functions as a section for determining the winding-up suitability (suitability for uniformly winding up the peripheral surface of the object to be wound up without variation) when the connected body is wound up by the roll paper. However, in patent document 1, since no particular consideration is given to the case of using such a manufacturing method, if a cover having only a function as an airflow guide element, that is, a simple tubular member is used, the rolling suitability is deteriorated, and there is a possibility that the quality of the smoking article is poor.

The present invention has been made in view of the above problems, and an object thereof is to provide a method for manufacturing a smoking article, which can improve both the quality and the productivity of the smoking article.

Means for solving the problems

In order to achieve the above object, a method for manufacturing a smoking article of the present invention includes: a first arranging step of supplying two rolling-up members, two heat sources and one fragrance source material to form a first connected body in which the rolling-up members, the heat sources, the fragrance source material, the heat sources and the rolling-up members are sequentially arranged in a line; a first winding step of integrally winding the first connected body by the first roll paper to form a first continuous body; a first cutting step of cutting the first continuous body at the fragrance source material and dividing the first continuous body into two pieces to form two intermediate rods in which fragrance sources formed by dividing the rolling-up member, the heat source, and the fragrance source material into two pieces are sequentially arranged in a row; a second arranging step of supplying the filter element material, and forming a second connecting body in which the intermediate rod, the filter element material, and the intermediate rod are sequentially arranged in a line by directing the flavor source sides of the two intermediate rods toward both ends of the filter element material; a second winding step of integrally winding the second connected body by the second roll paper to form a second continuous body; and a second cutting step of cutting the second continuous body into two pieces at the filter material to form two smoking articles in which the filter material formed by cutting the rolling-up member, the heat source, the flavor source, and the filter material into two pieces is arranged in a row in this order.

Effects of the invention

According to the method for manufacturing a smoking article of the present invention, both quality improvement and productivity improvement of the smoking article can be achieved.

Drawings

Fig. 1 is a schematic cross-sectional view in the axial direction of a smoking article manufactured by a manufacturing method according to a first embodiment of the present invention.

Fig. 2 is a flowchart illustrating a manufacturing process of the smoking article.

Fig. 3 is a diagram illustrating the first alignment process (step S1).

Fig. 4 is a diagram showing the first winding process (step S2).

Fig. 5 is a diagram illustrating the first cutting process (step S3).

Fig. 6 is a diagram illustrating the second arranging process (step S4).

Fig. 7 is a diagram illustrating the second winding process (step S5).

Fig. 8 is a diagram illustrating the second cutting process (step S6).

Fig. 9 is a diagram showing a state in which the rolling member is detached from the smoking article.

Fig. 10 is a flowchart illustrating a hardness evaluation process.

Fig. 11 is a side view of the hardness tester.

Fig. 12 is a cross-sectional view showing a measurement target before and after application of a load for hardness measurement.

Fig. 13 is a flowchart illustrating the recovery rate evaluation process.

Fig. 14 is a side view of the ellipticity measuring apparatus of fig. 12.

Fig. 15 is a cross-sectional view showing a measurement target before and after a load is applied in the ellipticity measurement.

Figure 16 is a diagram partially illustrating a smoking article according to a second embodiment of the invention.

Figure 17 is a diagram partially illustrating a smoking article according to a third embodiment of the invention.

Figure 18 is a diagram partially illustrating a smoking article according to a fourth embodiment of the invention.

Fig. 19 is a plan view of the first wrapping paper of the smoking article according to the fifth embodiment of the present invention, as viewed from the inner peripheral surface side.

Fig. 20 is a cross-sectional view of the first continuous body in the case where the first roll paper of fig. 19 is used.

Figure 21 is a diagram partially illustrating a smoking article according to a sixth embodiment of the invention.

Fig. 22 is a view partially showing a smoking article which becomes a modification of fig. 21.

Figure 23 is a diagram partially illustrating a smoking article according to a seventh embodiment of the invention.

Fig. 24 is a diagram showing a smoking article of an eighth embodiment of the present invention.

Fig. 25 is a diagram showing a smoking article of a ninth embodiment of the present invention.

Detailed Description

Hereinafter, a method for manufacturing a smoking article according to an embodiment of the present invention will be described with reference to the drawings.

< first embodiment >

Fig. 1 shows a schematic cross-sectional view of a smoking article 1 according to a first embodiment of the present invention in the axial direction X. The smoking article 1 is a heat source type cigarette in which a rolling-up member 2, a heat source 3, a flavor source 4, and a filter member 5 are arranged in a row in the axial direction X in this order.

The smoking article 1 includes: a first roll of paper 6 that rolls up the rolling member 2, the heat source 3, and the fragrance source 4 integrally; and a second roll paper 7 for further rolling up the rolling-up member 2 rolled up by the first roll paper 6, the heat source 3, and the flavor source 4 integrally with the filter member 5. Further, the smoking article 1 includes: an adhesive part 8 for adhering the winding member 2, a part of the heat source 3, and the fragrance source 4 to the first roll sheet 6; and a non-adhesive portion 9 for preventing the remaining part of the heat source 3 on the side of the heat source 2 of the heat source 3 from adhering to the first sheet 6. The smoking article 1 is used by detaching the rolling-up member 2 from the non-adhesive portion 9 to expose at least a part of the heat source 3 so that heating by ignition can be performed.

[ Member for winding ]

The member 2 for winding up according to the present embodiment is, for example, a paper tube, and is a member for improving the winding-up suitability when the first coupling body 13 formed in the first alignment step described later is wound up by the first roll paper 6 in the first winding step described later. The rolling-up member 2 also has a function of covering and protecting the heat source 3 during manufacture and before use of the smoking article 1.

The roll-up suitability means suitability for uniformly rolling up the peripheral surface of the roll-up object without variation. The smoking article 1 including the rolling-up member 2 can eliminate rolling-up failure caused by the first roll paper 6 as much as possible. The rolling member 2 may be made of any material other than a paper tube, but preferably has the same hardness as the fragrance source 4, thereby improving the rolling suitability. Further, the rolling member 2 alone can be easily detached from the smoking article 1 by the touch, so-called detachment suitability is also improved.

Further, in order to improve the adhesion suitability of the first roll paper 6 to the first connecting body 13, it is preferable that the ellipticity (in other words, the recovery rate) of the roll-up member 2 and the fragrance source 4 after deformation by applying a load is the same. The reason for improving the rolling suitability, the peeling suitability, and the adhesion suitability will be described in detail later. The winding member 2 may be a member formed by winding a hollow filter tow by a winding roll or a member formed by winding a solid filter tow by a winding roll.

The length of the member 2 for rolling up in the axial direction X is preferably 5mm to 20mm, more preferably 10mm to 15mm, so that the user can easily pull out or remove the member with fingers. This can improve the suitability for detaching the smoking article 1.

[ Heat Source ]

The heat source 3 is a solid material formed in a columnar shape, is a carbon heat source, for example, and has a hollow portion 3a penetrating in the axial direction X in the present embodiment. The heat source 3 burns and generates heat by ignition. By passing through the hollow portion 3a, the air flow heated by the heat source 3 can be efficiently generated. By passing air heated by the heat source 3 through the fragrance source 4, an aerosol containing a fragrance component is effectively generated.

[ fragrance Source ]

The flavor source 4 is a columnar shaped product, and is formed by wrapping at least one of cut tobacco, tobacco material, and the like in a rolled body having an arbitrary shape such as a granular shape or a sheet shape, a plant other than tobacco, and other flavors with a wrapping paper 4 a. In the fragrance source 4, an aerosol-forming substrate is added.

The user draws the aerosol generated after the airflow heated by the heat source 3 has passed through the fragrance source 4. Thereby, the user can ingest the components of the fragrance source 4. Note that, since the fragrance source 4 is formed by dividing the fragrance source material 12 described later into two parts, and both parts are made of the same material, the fragrance source 4 and the fragrance source material 12 may be used in the same sense in the following description.

[ Filter Member ]

The filter member 5 is formed by aligning the tube 10 and the filter element 11 in order from the flavor source 4 side in the axial direction X. The tube 10 is arranged to regulate the flow of air through the smoking article 1. The tube 10 may be, for example, a paper tube or a plastic tube. The filter element 11 is formed by wrapping a filter fiber bundle such as cellulose acetate with a wrapping paper 11 a.

The filter fiber bundle may be solid or hollow. Further, particles of activated carbon or particles of hydrotalcite-like compound may be added to the filter fiber bundle, or a capsule filled with a content liquid may be embedded in a breakable shell. The content liquid is, for example, a flavor, an edible oil as a solvent for dissolving the flavor, or the like. The filter element 11 may be a so-called multi-stage filter in which a plurality of filter plugs are joined.

[ first roll paper ]

The first roll paper 6 is made of a paper material (including a metal-clad paper, for example, an aluminum-clad paper) having a relatively low air permeability for cigarette use, and the leading end of the winding member 2 protrudes from the end of the first roll paper 6. This makes it possible to easily visually recognize the presence of the rolling member 2 to be separated.

[ second roll paper ]

The second roll paper 7 is made of paper having a low air permeability for cigarette. The second roll paper 7 is rolled up in a region from the filter member 5 to a part of the flavor source 4 adjacent thereto, and an adhesive portion, not shown, is formed in a region where the filter member 5 and the flavor source 4 can be connected by the second roll paper 7.

Hereinafter, the process of manufacturing the smoking article 1 will be described with reference to fig. 2 to 8. Fig. 2 is a flowchart illustrating a manufacturing process of the smoking article 1, and fig. 3 to 8 are diagrams for explaining steps S1 to S6 shown in fig. 2.

[ first arranging step ] (step S1)

When the manufacturing process of the smoking article 1 is started, first, as shown in fig. 3, two rolling members 2, two heat sources 3, and one flavor source material 12 are supplied, and a first connecting body 13 is formed in which the rolling members 2, the heat sources 3, the flavor source materials 12, the heat sources 3, and the rolling members 2 are aligned in a row in the axial direction X in this order. The fragrance source material 12 has a length twice as long as the fragrance source 4 in the axis direction X.

Specifically, each material constituting the first connecting body 13 is supplied by a supply means not shown. The materials supplied from the supply unit are arranged in the order of fig. 3, and the respective materials are sucked by the suction drum, and there are intervals at which new materials can be supplied each time when the respective sections are reached. The supply, arrangement, and treatment of the respective materials necessary for the respective steps may be performed at one location.

[ first winding Process ] (step S2)

Next, as shown in fig. 4, the first connected body 13 is wound up in the axial direction X by the first roll paper 6 to form a first continuous body 14. Specifically, a winding unit, not shown, having a winding roller is used. The first roll sheet 6 is supplied to the winding unit, the first coupling body 13 is arranged on the first roll sheet 6, and the first roll sheet 6 is wound while being substantially uniformly pressed by the winding roller over the entire region in the axial direction X of the first coupling body 13.

In this winding, by positioning the winding-up member 2 at each end of the first connecting body 13, the ends of the first connecting body 13 are not crushed, and the circumferential surface of the first connecting body 13 can be uniformly wound up by the first roll paper 6 without variation. Therefore, the suitability for rolling up the first connecting body 13 is improved. Further, as described above, since the winding roller presses the entire first connecting body 13, the fragrance source material 12 is present in addition to the winding member 2 in the first connecting body 13, which is one of the main factors for improving the suitability for winding the first connecting body 13.

Since the diameter of the heat source 3 is slightly smaller than the diameters of the winding-up member 2 and the fragrance source material 12, the heat source 3 does not contact the winding-up roller during the winding-up. Therefore, the hardness and the like of the heat source 3 do not affect the winding suitability. In addition, unnecessary gaps in the first continuous body 14 wound up by the first roll paper 6 and irregularities on the surface of the first continuous body 14 are suppressed, and the first continuous body 14 satisfying the suitability quality for the winding up of the smoking article 1 is formed.

When the first connector 13 is wound up by the first roll of paper 6, an adhesive portion 8 that bonds the first connector 13 and the first roll of paper 6 and a non-adhesive portion 9 that does not bond at least a part of the heat source 3 on the winding-up member 2 side of each heat source 3 are formed.

More specifically, the adhesive agent is applied to a region (the entire circumferential surface or a part of the circumferential surface) continuous in the axial direction X facing the winding-up member 2, a part of the heat source 3, and the fragrance source material 12 on the inner circumferential surface of the first roll 6 in the state of the first continuous body 14, and the first continuous body 13 is wound up by the first roll 6 to form the adhesive portion 8.

On the other hand, the non-adhesive portion 9 is formed by winding up the first connector 13 with the first web 6 without applying an adhesive to a region (the entire circumferential surface or a part of the circumferential surface) on the inner circumferential surface of the first web 6 that is continuous in the axial direction X facing a part of the heat source 3 and the winding-up member 2. The smoking article 1 is used by separating at least a part of the rolling-up member 2 at the non-adhesive portion 9 and exposing at least a part of the heat source 3 so that heating by ignition is possible.

If the non-adhesive portion 9 is present, the adhesive portion 8 may not be formed over the entire area on the rolling member 2 side. Further, it is not necessary to make the tip of the rolling member 2 protrude from both ends of the first roll sheet 6.

[ first cutting Process ] (step S3)

Next, as shown in fig. 5, the first continuous body 14 is cut and divided into two parts at the part indicated by the broken line of the fragrance source material 12 by a cutter not shown, and two intermediate rods 15 are formed to sequentially align the fragrance source 4 formed by dividing the winding-up member 2, the heat source 3, and the fragrance source material 12 into two parts in the axial direction X.

[ second alignment Process ] (step S4)

Next, as shown in fig. 6, after the two intermediate rods 15 are spaced apart in the axial direction X, the filter element material 16 is supplied between the intermediate rods 15. The two intermediate levers 15 need only be oriented in the state of being cut in step S3, and need not be reversed to change their orientation. The filter member material 16 is formed of a filter element material 17 and tubes 10, the filter element material 17 having a length twice as long as that of the filter element 11 in the axial direction X, the tubes 10 being respectively disposed at both ends of the filter element material 17.

The filter member material 16 may be supplied after the tube 10, the filter element material 17, and the tube 10 are sequentially aligned in the axial direction X, or may be supplied as the filter element material 17 by supplying and aligning the tube 10, the filter element material 17, and the tube 10 individually. Then, the fragrance source 4 sides of the two intermediate rods 15 are directed to the respective ends of the filter member 16, and second connecting bodies 18 are formed in which the intermediate rods 15, the filter member 16, and the intermediate rods 15 are aligned in the axial direction X in this order.

[ second Rolling Process ] (step S5)

Next, as shown in fig. 7, the second connected member 18 is wound up by the second roll paper 7 to form a second continuous member 19. Specifically, the second roll paper 7 is fed to the winding-up unit in the same manner as in the case of step S2, and the second coupling member 18 is disposed on the second roll paper 7. Then, the second roll paper 7 is pressed substantially uniformly by the wind-up roller over a continuous region from the filter material 16 to the flavor sources 4 of the two intermediate bars 15 in the axial direction X while being wound up.

In this winding, by positioning the fragrance source 4 at both ends of the second connecting member 18, the filter member material 16 and the circumferential surface of the fragrance source 4 of the intermediate rod 15 can be uniformly wound up by the second roll paper 7 without variation. Therefore, the suitability for rolling up the second connecting member 18 is improved, and the second continuous member 19 satisfying the suitability quality for rolling up the smoking article 1 is formed.

In addition, in the second continuous body 19, at least a part of the heat source 3 of the intermediate lever 15 protrudes from both ends of the second roll paper 7, respectively. Thus, when the rolling-up member 2 is detached from the smoking article 1, the second roll paper 7 does not need to be torn, and therefore, the rolling-up member 2 can be easily detached.

When the second connected member 18 is wound up by the second roll paper 7, the filter member material 16 and the intermediate rod 15 in the second continuous member 19 are firmly connected by appropriately bonding the second connected member to a bonding portion not shown.

[ second cutting Process ] (step S6)

Next, as shown in fig. 8, the second continuous body 19 is cut into two parts at the portions of the filter material 16 indicated by the broken lines by a cutter not shown, and two smoking articles 1 are formed, and the smoking articles 1 sequentially align the rolling-up member 2, the heat source 3, the flavor source 4, and the filter material 5 formed by dividing the filter material 16 into two parts in the axial direction X. Thereby, the manufacturing process of the smoking article 1 is completed.

Fig. 9 is a diagram showing a state in which the rolling member 2 is detached from the smoking article 1. When the user uses the smoking article 1, the rolling-up member 2 is pulled in the axial direction X, and the first paper roll 6 is torn in the circumferential direction at the non-adhesive portion 9, so that the rolling-up member 2 can be detached from the smoking article 1. As a result, as shown in fig. 9, the heat source 3 is exposed at the front end of the smoking article 1, and the heat source 3 can be ignited. In addition, a step of detaching the rolling-up member 2 may be provided in the manufacturing process of the smoking article 1, and the smoking article 1 from which the rolling-up member 2 is detached may be handled as a finished product.

Here, when detaching the rolling-up member 2 from the smoking article 1, the user often relies on the feeling of touching with a finger in order to reliably detach only the rolling-up member 2 from the smoking article 1 at the non-adhesive section 9. That is, when the smoking article 1 is used, if it is difficult to determine the presence of the rolling-up member 2 or the boundary between the rolling-up member 2 and the heat source 3 (i.e., the position of the non-adhesive portion 9) by the tactile sensation, the user may detach not only the rolling-up member 2 but also the heat source 3 together or detach the rolling-up member and the intermediate lever 15 including the flavor source 4.

Therefore, in the present embodiment, in order to further improve the above-described rolling suitability in the smoking article 1 and to impart a detachment suitability for the smoking article 1 that allows only the rolling member 2 to be easily detached from the smoking article 1 by the touch, the hardness evaluation step of the smoking article 1 is performed.

The hardness evaluation step will be described below with reference to a flowchart showing the hardness evaluation step of fig. 10.

[ measurement of hardness ] (step S11)

When the hardness evaluation step is started, first, the hardness of the rolling member 2, the heat source 3, and the flavor source material 12 is measured.

Fig. 11 shows a side view of the hardness measuring unit 20 used for hardness measurement.

The hardness measuring unit 20 includes a base 21, a pair of support walls 22, two lower bars 23, two upper bars 24, and a lifter 25. The pair of support walls 22 are erected in parallel with the base 21 and extend in the depth direction of fig. 11. The two lower bars 23 are fixed to the base 21 between the pair of support walls 22, and extend parallel to the pair of support walls 22. The two upper rods 24 are disposed opposite to the upper sides of the two lower rods 23, and are supported by the lifter 25 so as to be movable up and down.

First, any one of the rolling-up member 2, the heat source 3, and the flavor source material 12 (hereinafter, also referred to as a measurement object a) is disposed so as to span the pair of support walls 22 and the lower rod 23. By arranging a plurality of the objects a along the extending direction of the support wall 22 and the lower bar 23, the hardness of a plurality of (for example, 20) objects a can be measured at one time. Note that, since the flavor source 4 obtained by dividing the flavor source material 12 into two portions also has the same hardness as the flavor source material 12, the smoking article 1 itself or the flavor source 4 constituting the smoking article may be the measurement object a.

Next, when the lifter 25 is operated to lower the upper lever 24 in the arrow direction of fig. 11, the measurement object a is sandwiched between the upper lever 24 and the lower lever, and a load is applied to the measurement object a. By shifting the measurement object a in the axial direction X, a load can be applied to a desired position of the measurement object a. In measuring the hardness of the object a, it is preferable to apply a load to the central portion of the object a in the longitudinal direction to perform the measurement.

The hardness measurement was performed based on the average value of the deformation amounts of the respective measurement objects a when a load of 19.6N was applied to 20 measurement objects a for 20 seconds.

Fig. 12 shows the cross-sectional shape of the measurement object a before the load F is applied by the alternate long and short dash line, and shows the cross-sectional shape of the measurement object a when the load F is applied by the solid line. The measurement object a had a circular cross section before the load F was applied, and had an initial height H1 (the diameter of the measurement object a), and an elliptical cross section when the load F was applied, and had a remaining height H2.

In the present embodiment, the hardness of the measurement object a is calculated based on the following formula.

Hardness (%) - (H2/H1) × 100

According to this formula, the hardness of each of the objects a was measured based on the ratio (percentage) of the remaining height H2 to the initial height H1. In the present evaluation, the average value of the measured hardness of the 20 measurement objects a was calculated, and the average value was defined as the hardness of the measurement object a, that is, the hardness of any one of the windup member 2, the heat source 3, and the flavor source material 12. The same applies hereinafter.

The smaller the difference (Δ H) obtained by subtracting the residual height H2 from the initial height H1, the greater the value of hardness, and the harder the object a is determined to be. When the heat source 3 is a carbon heat source, if the hardness is determined using the measurement object a as the carbon heat source, the remaining height H2 is equal to the initial height H1, and the actual measurement value of the hardness is 100%. Therefore, the hardness of the heat source 3 is defined as 100%, and the following description is given.

Then, in order to improve both the roll-up suitability and the detachment suitability, according to the experiments of the inventors, it was found that when the hardness Hh of the heat source is defined as 100%, the hardness Hw of the roll-up member 2 and the hardness Hf of the fragrance source material 12 are preferably 60% or more and 95% or less, more preferably 65% or more and 80% or less, and further preferably the difference between the hardness Hw of the roll-up member 2 and the hardness Hf of the fragrance source material 12 is 30% or less, and further preferably the difference between the hardness Hw of the roll-up member and the hardness Hf of the fragrance source material 12 is 15% or less. Therefore, in the present embodiment, the hardness is evaluated by performing at least one of the following determinations in steps S12 to S14.

[ first hardness determination ] (step S12)

As shown in fig. 10, when the hardness Hh of the heat source 3 is defined as 100%, it is determined whether or not the hardness Hw of the windup member 2 and the hardness Hf of the fragrance source material 12 are 60% to 95%. If the determination result is yes, the difference ((Hh-Hw) and (Hh-Hf)) between the hardness of the heat source 3 and the rolling-up member 2 and the flavor source material 12 adjacent to both sides thereof exists to some extent in the smoking article 1, and therefore it is determined that the required rolling-up suitability can be ensured, and the rolling-up member 2 and the flavor source material 12 are softer than the heat source 3, and the boundary between the rolling-up member 2 and the heat source 3 can be easily recognized by the user with the touch, and therefore it is determined that the required detachment suitability can be ensured, and the routine proceeds to step S15 and the reception is permitted, and then the routine is terminated.

On the other hand, if the determination result is no, the rolling-up member 2 and the fragrance source material 12 are too soft, and it is determined that the rolling-up suitability is not ensured, or the rolling-up member 2 and the fragrance source material 12 are as hard as the heat source 3, and therefore, the rolling-up member 2 and the heat source 3 may be detached or the intermediate lever 15 may be detached, and it is determined that the detachment suitability is not ensured, and the process proceeds to step S16 and the reception is rejected, and then the present process is ended.

[ second hardness determination ] (step S13)

When the hardness Hh of the heat source 3 is defined as 100%, it is determined whether the difference between the hardness Hw of the windup member 2 and the hardness Hf of the flavor source material 12 is 30% or less. If the determination result is yes, the difference (| Hw-Hf | (absolute value)) between the hardness of the rolling-up member 2 and the fragrance source material 12 is small, and therefore the hardness of the rolling-up member 2 and the fragrance source material 12 approach each other, and it is determined that the rolling-up suitability is further improved, and the hardness of the heat source 3 sandwiched between the rolling-up member 2 and the fragrance source 4 is further emphasized, and the user can more easily recognize the boundary between the rolling-up member 2 and the heat source 3 by the tactile sensation, and therefore it is determined that the detachment suitability is further improved, and the process proceeds to step S15 and is allowed to be received, and then the present process is terminated.

On the other hand, if the determination result is no, the difference between the hardness of the rolling-up member 2 and the fragrance source material 12 is too large, and it is determined that the rolling-up suitability is not ensured, or if the difference between the hardness of the rolling-up member 2 or the fragrance source material 12 is generated because the rolling-up member 2 or the fragrance source material 12 is as hard as the heat source 3, the rolling-up member 2 and the heat source 3 may be detached or the intermediate lever 15 may be detached, and it is determined that the rolling-up suitability is not ensured, and the process proceeds to step S16 and the reception is rejected, and then the process is terminated.

[ third hardness determination ] (step S14)

When the hardness Hh of the heat source 3 is defined as 100%, it is determined whether the difference between the hardness Hw of the windup member 2 and the hardness Hf of the flavor source material 12 is 15% or less. If the determination result is yes, the difference (| Hw-Hf |) between the hardness of the rolling-up member 2 and the fragrance source 4 is smaller, and therefore the hardness of the rolling-up member 2 and the fragrance source material 12 are closer to each other, and it is determined that the rolling-up suitability is further improved, and the hardness of the heat source 3 sandwiched between the rolling-up member 2 and the fragrance source 4 is further emphasized, and the user can more easily recognize the boundary between the rolling-up member 2 and the heat source 3 by the touch, and therefore it is determined that the deviation suitability is further improved, and after the process proceeds to step S15 and reception is permitted, the present process is ended.

On the other hand, if the determination result is no, the hardness of the rolling-up member 2 and the fragrance source 4 is slightly large, and it is determined that the rolling-up suitability is not necessarily ensured, or the possibility of causing the separation of the rolling-up member 2 and the fragrance source 4 or the separation of the intermediate lever 15 cannot be eliminated, and it is determined that the separation suitability is not necessarily ensured, and the process proceeds to step S16 and the reception is rejected, and then the present process is ended.

Here, in order to bond the first connector 13 and the first roll paper 6 at the bonding portion without deviation in the first winding step, the compressive strength of the winding member 2 and the fragrance source material 12 is important. This is because, in the manufacturing process of the smoking article, the rolling-up member 2 and the flavor source material 12 may be crushed during the manufacturing process, and if the first rolling-up process is performed in a state where the rolling-up member 2 and the flavor source material 12 are crushed, the rolling-up suitability is naturally deteriorated, and a gap is generated in the adhesive portion 8, which leads to poor adhesion of the first connector 13 and the smoking article 1.

Therefore, in the present embodiment, in order to further improve the rolling suitability in the smoking article 1 and to provide the smoking article 1 with so-called bonding suitability in which the first connector 13 and the first roll paper 6 at the bonding portion 8 are appropriately bonded, the recovery rate evaluation step of the smoking article 1 is performed.

The restoration rate evaluation step will be described below with reference to a flowchart showing the restoration rate evaluation step shown in fig. 13.

[ determination of recovery Rate ] (step S21)

When the recovery rate evaluation step is started, first, the recovery rates of the winding-up member 2 and the fragrance source material 12 are measured.

Fig. 14 is a side view of the recovery rate measuring means 30 used for the recovery rate measurement.

The restoration ratio measuring unit 30 includes a base 31, a disc 32, an elevator 33, and the like. The circular surface of the disk 32 is disposed facing the base 31 and supported by the lifter 33 to be movable up and down.

First, after the winding-up member 2 and the flavor source material 12 (hereinafter, also referred to as the measurement object B) are placed on the base 31, as shown in fig. 14, when the lifter 33 is operated to lower the disk 32, the measurement object B is sandwiched between the disk 32 and the base 31, and a load is applied to the measurement object B. Note that, since the flavor source 4 obtained by dividing the flavor source material 12 into two portions also has the same recovery rate as the flavor source material 12, the flavor source 4 may be the measurement object B.

The recovery rate was measured based on the ellipticity when the object B was left to stand for 5 minutes after applying a load of 1/2 for 1 minute to compress the object B to a diameter.

Fig. 15 shows the cross-sectional shape of the measurement object B before the load F is applied by the alternate long and short dash line, and shows the cross-sectional shape of the measurement object B immediately after the load F is applied and left.

The measurement object B has a substantially circular cross section before the load F is applied, and has an elliptical cross section after the load F is applied and left, and has a long diameter Da and a short diameter Db.

In the present embodiment, the ellipticity of the measurement target B is calculated based on the following equation.

Ellipse ratio (%) ═ 2(Da-Db)/(Da + Db) × 100

According to this equation, the smaller the difference obtained by subtracting the short diameter Db from the long diameter Da, the smaller the numerical value of the ellipticity, and the larger the restoration rate of the measurement target B is determined.

Then, in order to improve both the rolling suitability and the bonding suitability, according to the experiments by the inventors, it was found that the preferable numerical value of the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the fragrance source material 12 is 40% or less, more preferably, the numerical value difference of the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the fragrance source material 12 is 30% or less, and still more preferably, the numerical value difference of the ellipticity is 15% or less. Therefore, in the present embodiment, the ellipticity is evaluated by performing at least one of the following determinations in steps S22 to S24.

[ first ellipticity determination ] (step S22)

As shown in fig. 13, it is determined whether or not the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the flavor source material 12 are 40% or less. If it is determined as a result, the recovery rate of the winding-up member 2 and the fragrance source material 12 is relatively high, and therefore it is determined that the required winding-up suitability can be secured, and the first connector 13 and the first roll paper 6 can be bonded together without deviation at the bonding portion 8 in the first winding-up step, and the process is terminated after the process shifts to step S25 and reception is permitted.

On the other hand, if the result of the determination is no, the recovery rate of the roll-up member 2 and the flavor source material 12 is small, and therefore it is determined that the roll-up suitability is not secured, or it is determined that the roll-up suitability is not secured because a non-adhesive region is generated in the adhesive portion 8 due to the depression of the roll-up member 2 or the flavor source material 12 generated in the manufacturing process, or the first roll paper 6 is likely to be peeled off in the adhesive portion 8, and the process proceeds to step S26 and the reception is rejected, and then the process is terminated.

[ second ellipticity determination ] (step S23)

Next, it is determined whether or not the difference between the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the flavor source material 12 is 30% or less. If it is determined as a result, the difference (| Ew-Ef | (absolute value)) between the ellipticities of the rolling-up member 2 and the fragrance source material 12 is small, and therefore the restoration rates of the rolling-up member 2 and the fragrance source material 12 are close to each other, and it is determined that the rolling-up suitability is further improved, and it is determined that the adhesion suitability is further improved because a difference is unlikely to occur in the adhesion manner between the rolling-up member 2 and the fragrance source material 12 at the adhesion portion 8, and the process proceeds to step S25 and is allowed to receive, and then the present process is terminated.

On the other hand, if the result of the determination is no, the difference in the restoration rates of the rolling-up member 2 and the fragrance source material 12 is too large, and it is determined that the rolling-up suitability is not ensured, or the adhesion failure may be caused by the difference in the adhesion manner between the rolling-up member 2 and the fragrance source material 12 at the adhesive portion 8, and it is determined that the adhesion suitability is not ensured, and the process proceeds to step S26 and the reception is rejected, and then the process is terminated.

[ third ellipticity determination ] (step S24)

Next, it is determined whether or not the difference between the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the flavor source material 12 is 15% or less. If it is determined as a result, the difference (| Ew-Ef |) between the ellipticities of the rolling member 2 and the fragrance source material 12 is further reduced, and therefore the restoration rates of the rolling member 2 and the fragrance source material 12 are further brought closer to each other, and it is determined that the rolling suitability is further improved, and the difference in the adhesion manner between the rolling member 2 and the fragrance source material 12 at the adhesion portion 8 is further unlikely to occur, and it is determined that the adhesion suitability is further improved, and the process proceeds to step S25 and is terminated after the reception is permitted.

On the other hand, if the determination result is no, the restoration rate of the rolling-up member 2 and the fragrance source material 12 is slightly large, and it is determined that the rolling-up suitability is not necessarily ensured, or the possibility of causing poor adhesion between the rolling-up member 2 and the fragrance source 12 cannot be eliminated, and it is determined that the adhesion suitability is not necessarily ensured, and the process proceeds to step S26 and the reception is rejected, and then the present process is ended.

As described above, in the present embodiment, by manufacturing the smoking article 1 through the steps of steps S1 to S6, the smoking article 1 can be manufactured using segments (constituent members) having a long segment length and a large aspect ratio. Therefore, during manufacturing, it is not necessary to strictly manage the posture of the segment in order to suppress the rotation of the segment, and a device for this purpose does not have to be prepared, so that both the improvement of quality and the improvement of productivity of the smoking article 1 can be achieved.

In the first cutting step, the first continuous body 14 is cut and divided into two in the flavor source material 12 to form two intermediate rods 15, and in the second cutting step, the second continuous body 19 is cut and divided into two in the filter material 16 to form two smoking articles 1. Therefore, by dividing a continuous body symmetrical to the left and right in the axial direction X into two parts to form two identical parts, the smoking article 1 can be manufactured more efficiently and the productivity of the smoking article 1 can be improved, as compared with the case where the smoking article 1 is manufactured by individually supplying a plurality of small segments cut or formed in advance to form a connected body and further forming the continuous body.

In the series of steps S1 to S6, the take-up member 2 is always positioned at both ends of the

coupling members

13, 18, the intermediate rod 15, and the

continuous members

14, 19. In particular, when the first continuous body 14 is formed, when the first connected body 13 is wound up by the first roll paper 6, the rolling-up members 2 are positioned at both ends, whereby the rolling-up suitability of the smoking article 1 can be improved, and the quality of the smoking article 1 can be further improved.

In the first winding step, an adhesive portion 8 for adhering the first connector 13 and the first roll paper 6 and a non-adhesive portion 9 for not adhering at least a part of the heat source 3 on the winding member 2 side of each heat source 3 are formed. Thereby, at least a part of the rolling-up member 2 is detached at the non-adhesive portion 9, and at least a part of the heat source 3 is exposed so as to be usable while heating by ignition is possible.

Further, by performing the hardness evaluation step described above, the rolling suitability of the smoking article 1 can be further improved, and the smoking article 1 can be provided with the peeling suitability. Specifically, in the hardness evaluation step, the hardness of the wind-up member 2, the heat source 3, and the fragrance source material 12 was measured based on the ratio of the remaining height H2 to the initial height H1 when a load of 19.6N was applied for 20 seconds. Then, by performing the first hardness determination, the acceptance permission is issued only to the following rolling-up member 2 and fragrance source material 12: the heat source 3 is softer than the winding member 2, and the user can easily recognize the boundary between the winding member 2 and the heat source 3 by the touch, thereby ensuring the detachment suitability.

Further, by performing the second and third hardness determinations, the acceptance permission is issued only to the following rolling-up member 2 and fragrance source material 12: the rolling suitability is further improved by the mutual hardness being close to each other, and the hardness of the heat source 3 sandwiched between the rolling member 2 and the flavor source 4 in the smoking article 1 is further enhanced, so that the user can more easily recognize the boundary between the rolling member 2 and the heat source 3 by the touch, and the disengagement suitability is further improved. Note that, instead of performing all of the first to third hardness determinations, at least one of the determinations may be performed, or the first to third hardness determinations may be performed sequentially. Even in this case, the rolling-up suitability and the removal suitability of the smoking article 1 are improved.

Further, by performing the above-described recovery rate evaluation step, the smoking article 1 can be further improved in the rolling suitability, and the smoking article 1 can be provided with the adhesion suitability. Specifically, the recovery rate evaluation step measures the recovery rate of the member for rolling up 2 and the fragrance source material 12 based on the ellipticity when the member for rolling up and the fragrance source material are left for 5 minutes after a load of 1/2 is applied for 1 minute. Then, by performing the first ellipticity determination, the acceptance permission is issued only to the following rolling-up member 2 and fragrance source material 12: since the recovery ratio is relatively high, it is determined that the required roll-up suitability can be secured and the first connector 13 and the first roll paper 6 can be bonded together without variation at the bonding portion 8 in the first roll-up step.

Further, by performing the second and third ellipticity determinations, the acceptance permission is issued only to the following rolling-up member 2 and fragrance source material 12: the mutual restoration rates are close to each other, whereby the rolling suitability is further improved, and a difference in the bonding manner between the rolling member 2 and the fragrance source material 12 in the bonding portion 8 is further less likely to occur, whereby the bonding suitability is further improved. Note that all of the first to third ellipticity determinations may not be performed, but at least one of the determinations may be performed, or the first to third ellipticity determinations may be performed sequentially. Even in this case, the rolling suitability and the bonding suitability of the smoking article 1 are improved.

As described above, the smoking article 1 of the present embodiment is provided with the rolling member 2 to improve the rolling suitability, and further improvement of the rolling suitability and improvement of the peeling suitability are realized by the evaluation of the hardness of the rolling member 2 and the flavor source material 12, and further improvement of the rolling suitability and improvement of the adhesion suitability are realized by the evaluation of the recovery rate of the rolling member 2 and the flavor source material 12.

The above description has been made of the embodiments of the present invention, but the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, the smoking article 1 manufactured according to the above embodiment has a more preferable aspect, and is not limited to the above structure. Therefore, another mode of the smoking article 1 to which the above-described method for manufacturing the smoking article 1 can be applied will be described below.

< second embodiment >

As shown in the smoking article 1 of fig. 16 (only a part of the intermediate rod 15 is shown), the outer peripheral surface 6a of the first web 6 when the first connected body 13 is wound up is a non-coated surface on which a pigment such as calcium carbonate is not coated. Further, the first roll of paper 6 preferably has a weight per unit area of 70g/m²～140g/m²High density paper of the range of (1). As described above, the first roll paper 6 having such a weight per unit area may be a metal-clad paper, for example, an aluminum-clad paper.

By making the outer peripheral surface 6a of the first roll of paper 6a non-coated surface from which the paper material is peeled, the production cost of the smoking article 1 can be reduced. Further, by making the first paper roll 6 high-density paper, scorching of the first paper roll 6 when the smoking article 1 is heated during use of the heat source 3 can be suppressed, and an appropriate tensile strength can be imparted to the first paper roll 6, so that the segment connection by the first paper roll 6 can be made firm. Thereby, the quality of the smoking article 1 is further improved.

< third embodiment >

As shown in the smoking article 1 of fig. 17 (only a part of the intermediate rod 15 is shown), the non-adhesive portion 9 is a thin portion 6c in which the thickness of the first paper 6 is thinner than that of the adhesive portion 8, and the thickness of the thin portion 6c is, for example, 1/2 or less of the thickness of the first paper 6. This makes it easy to detach the rolling-up member 2 from the non-adhesive portion 9, and hence the suitability for detaching the smoking article 1 is further improved.

< fourth embodiment >

As shown in the smoking article 1 of fig. 18 (only a part of the intermediate rod 15 is shown), the heat-conducting element 40 is disposed inside the inner peripheral surface 6b of the first roll of paper 6 when the first connector 13 is wound up. The heat conducting element 40 is disposed in the region from the rolling member 2 to the fragrance source 4 through the heat source 3 in the axial direction X, and is disposed across the rolling members 2 at both ends in the first continuous body 14.

In this case, the first roll of paper 6 may be aluminum laminated paper in which the heat conductive element 40 is laminated and integrated on a paper material. Such aluminum-laminated paper may be two layers of paper and aluminum (in this case, the outer peripheral side in the winding process is paper), or may be three layers of paper, aluminum, and paper. In addition, when the first roll of paper 6 is aluminum laminated paper, aluminum is preferably not present at the center of the fragrance source 4 in the axial direction X. The absence of aluminum in the central portion has an advantage that the first continuous body 14 can be easily cut in the first cutting step.

Note that, in the first continuous body 14, two fragrance source materials 12 may be arranged so as to span. The heat conducting element 40 may be made of any material, but is preferably a metal foil (e.g., aluminum foil). By arranging the heat-conducting element 40, heat transfer from the heat source 3 to the fragrance source 4 is facilitated, and therefore aerosol can be generated more efficiently from the fragrance source 4.

< fifth embodiment >

Fig. 19 shows a plan view of the first roll paper 6 as viewed from the inner circumferential surface 6b side. A metal foil 41 (e.g., aluminum foil) as the heat conductive element 40 is bonded to the inner peripheral surface 6b of the first roll 6, and the first roll 6 constitutes a metal-bonded paper. The metal foil 41 is bonded to the first roll sheet 6 at three points at the center in the winding direction Y, except for both ends 42 in the winding direction Y. The three portions of the metal foil 41 are disposed across the two end portions 42 with two straight portions 43 extending in the winding direction Y interposed therebetween. That is, the two end portions 42 and the two straight portions 43 are formed of a paper material.

Fig. 20 is a sectional view of the first continuous body 14 in the case where the first roll of paper 6 as the metal-clad paper is used. Two straight portions 43 made of only a paper material are formed at positions corresponding to the non-adhesive portions 9, that is, the metal foil 41 is bonded except for the inner peripheral surface 6b at least corresponding to the non-adhesive portions 9. Thus, the rolling member 2 is easily separated from each of the linear portions 43, and thus the suitability for separation of the smoking article 1 can be ensured.

On the other hand, the adhesive portion 8 is formed at both end portions 42 of the inner circumferential surface 6b, that is, at a portion other than the metal foil 41. Thus, the adhesiveness of the first web 6 is improved and the adhesiveness of the smoking article 1 is improved as compared with the case where the adhesive 8 is formed by applying the adhesive to the metal foil 41. Further, by laminating and integrating the metal foil 41 as the heat transfer element 40 to the inner peripheral surface 6b, the outer peripheral surface 6a can be formed flat without performing processing (forming a weakening line such as a perforation) for improving the detachment suitability on the first web 6, and the productivity of the smoking article 1 can be improved and the appearance of the smoking article 1 can be improved.

< sixth embodiment >

As shown in the smoking article 1 of fig. 21 (only a part of the intermediate rod 15 is shown), the rolling member 2 is composed of two

separate bodies

2a and 2b that can be separated by the non-adhesive portion 9. The separator 2a is located at the front end of the rolling member 2, and is provided to ensure a predetermined length of the rolling member 2 in the axial direction X, and mainly has a function of improving the rolling suitability. Therefore, the separator 2a is disposed in the non-adhesive section 9, and is detachable after the first rolling step in the manufacturing process of the smoking article 1, and may not be present in the finished smoking article 1.

By making the adhesive portion 8 a thin layer of about 1 to 2 μm, the gap between the separator 2a and the first roll paper 6 as shown in fig. 21 is small. Therefore, the separator 2a is frictionally engaged with the first roll paper 6 when rolled up by the first roll paper 6, and is not easily detached.

On the other hand, the separator 2b mainly has a function of protecting the heat source 3 and is detached when the user uses the smoking article 1. Therefore, the adhesive portion 8 is formed in the area where the separator 2b of the first roll of paper 6 is disposed. In this way, the two

separate bodies

2a and 2b form the rolling-up member 2, and the functional separation is achieved, whereby the degree of freedom in designing the smoking article 1 can be improved.

As shown in fig. 22, the rolling member 2 may be provided with a coupling portion 2c for coupling the

separate bodies

2a and 2 b. This can prevent the separate body 2a from being accidentally detached. In order to easily detach the separate body 2a, the number of the coupling portions 2c is preferably one or two.

< seventh embodiment >

As shown in the smoking article 1 of fig. 23 (only the intermediate rod 15 is partially shown), the first roll of paper 6 has ventilation holes 6d that can ventilate the flavor source 4 from the vicinity of the heat source 3. Such vent holes may be provided on the outer peripheral side of the fragrance source 4. The heat source 3 may burn by ignition to generate heat, may be a heat source for solidifying and molding a particulate material other than carbon, and may not have the hollow portion 3a as shown in fig. 23.

The heat source 3 is not limited to a solid material, and a heat source formed into a sheet shape may be wound and used. Even when the hollow portion 3a is not provided, ventilation air can be generated which reaches the fragrance source 4 from the ventilation hole 6d via the heat source 3. Both the hollow portion 3a and the vent hole 6d may be provided. The hollow portion 3a is not limited to a hole penetrating in the axial direction X, and may be a hole opened in the circumferential surface of the heat source 3. In addition, when at least one of the hollow portion 3a and the vent hole 6d is provided, the heat transfer efficiency may be improved, and therefore the heat conductive element 40 may not be necessary.

< eighth embodiment >

As shown in the smoking article 1 of fig. 24, the filter member 5 is formed by arranging the tube 10, the cooling element 50, and the filter element 11 in a row in the axial direction X in this order from the flavor source 4 side. The cooling element 50 is formed by wrapping a folded member of sheet-like paper, biodegradable polymer, or the like with wrapping paper 50a, for example. In this case, the airflow passing through the heat source 3 and the fragrance source 4 in this order is cooled in the cooling element 50, and the aerosol generation efficiency is further improved.

In the case of fig. 24, the cooling element 50 and the filter element 11 are two-stage attachments 52 integrally wrapped with a roll paper 51. Accordingly, since the filter material 16 is constituted by only two components, i.e., the tube 10 and the two-stage attachment 52, the operability of the components in the second aligning step is improved, and the productivity of the filter 5 and the smoking article 1 is improved.

< ninth embodiment >

As shown in the smoking article 1 of fig. 25, the filter member 5 is formed by arranging the tube 10, the cooling element 50, and the filter element 11 in a row in the axial direction X in this order from the flavor source 4 side, and these are three-stage attachments 53 integrally wrapped with a roll paper 51. In this way, since the filter element material 16 is constituted by only one of the three-stage attachments 53, the operability of the elements in the second aligning step is further improved, and the productivity of the filter elements 5 and the smoking articles 1 is further improved.

The above-described method for manufacturing the smoking article 1 can be applied to the smoking article 1 manufactured by the above-described embodiments alone or in combination.

Description of the reference numerals

1 smoking article

2 rolling-up member

3 Heat source (carbon heat source)

4 fragrance source (tobacco material)

5 Filter element

6 first roll of paper

7 second roll of paper

8 adhesive part

9 non-adhesive part

12 fragrance source material

13 first connecting body

14 first continuum

15 middle rod

16 Filter element Material

18 second connecting body

19 second continuum.

Claims

1. A method for manufacturing a smoking article, comprising:

a first arrangement step of supplying two rolling-up members, two heat sources, and one fragrance source material to form a first connection body in which the rolling-up members, the heat sources, the fragrance source material, the heat sources, and the rolling-up members are arranged in a row in this order;

a first winding step of integrally winding the first connected body with first roll paper to form a first continuous body;

a first cutting step of cutting the first continuous body at the fragrance source material and dividing the cut body into two pieces to form two intermediate bars in which the fragrance sources formed by dividing the winding member, the heat source, and the fragrance source material into two pieces are arranged in a row in this order;

a second alignment step of supplying a filter material to form a second connection body in which the intermediate rod, the filter material, and the intermediate rod are sequentially aligned in a line, with the flavor source sides of the two intermediate rods facing the respective ends of the filter material;

a second winding step of integrally winding up the second connected member by a second roll paper to form a second continuous member;

and a second cutting step of cutting the second continuous body into two pieces at the filter material to form two smoking articles in which the filter material formed by cutting the rolling-up member, the heat source, the flavor source, and the filter material into two pieces is arranged in a row in this order.

2. The method of manufacturing a smoking article of claim 1,

the first winding step includes forming a bonding portion for bonding the first connected body and the first roll sheet and a non-bonding portion for not bonding a part of the heat source to the first roll sheet on the winding member side in the first continuous body when the first connected body is wound up by the first roll sheet,

the smoking article is used by detaching at least a part of the rolling member at the non-adhesive portion to expose at least a part of the heat source so as to enable heating by ignition.

3. The method of manufacturing a smoking article of claim 1 or 2,

the method comprises a hardness evaluation step of evaluating the hardness of the rolling member, the heat source, and the fragrance source material.

4. The method of manufacturing a smoking article of claim 3,

in the hardness evaluation step, the hardness of each of the 20 measurement objects is measured based on a ratio of a remaining height to an initial height when a load of 19.6N is applied for 20 seconds to the 20 measurement objects of one of the rolling-up member, the heat source, and the fragrance source material, an average value of the measured hardness of the 20 measurement objects is calculated, and the average value is defined as the hardness of the measurement object.

5. The method of manufacturing a smoking article of claim 4,

in the hardness evaluation step, when the hardness of the heat source is defined as 100%, the hardness of the rolling-up member and the fragrance source material is determined to be 60% or more and 95% or less.

6. The method of manufacturing a smoking article of claim 4 or 5,

in the hardness evaluation step, when the hardness of the heat source is defined as 100%, it is determined that the difference between the hardness of the rolling-up member and the hardness of the flavor source material is 30% or less.

7. The method of manufacturing a smoking article of any of claims 4 to 6,

in the hardness evaluation step, when the hardness of the heat source is set to 100%, it is determined that the difference between the hardness of the rolling-up member and the hardness of the fragrance source material is 15% or less.

8. The method of manufacturing a smoking article of any of claims 1 to 7,

comprises a recovery rate evaluation step of evaluating the recovery rates of the roll-up member and the fragrance source material.

9. The method of manufacturing a smoking article of claim 8,

in the recovery rate evaluation step, the recovery rates of the rolling member and the flavor source material were measured based on the ellipticity when left for 5 minutes after applying a load of 1/2 in which the rolling member and the flavor source material were compressed to the diameters thereof for 1 minute.

10. The method of manufacturing a smoking article of claim 9,

in the recovery rate evaluation step, the rolling-up member and the fragrance source material are judged to have an ellipticity of 40% or less.

11. The method of manufacturing a smoking article of claim 9 or 10,

in the recovery rate evaluation step, it is determined that the difference in the ellipticity between the rolling-up member and the fragrance source material is 30% or less.

12. The method of manufacturing a smoking article of any of claims 9 to 11,

in the recovery rate evaluation step, it is judged that the difference in the ellipticity between the rolling-up member and the fragrance source material is within 15%.

13. The method of manufacturing a smoking article of any of claims 1 to 12,

the heat source is a carbon heat source.

14. The method of manufacturing a smoking article of any of claims 1 to 13,

the flavour source is a tobacco material.