CN113453567B

CN113453567B - Method for manufacturing smoking article

Info

Publication number: CN113453567B
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: 2023-05-05
Anticipated expiration: 2039-03-22
Also published as: CN113453567A; TW202034800A; WO2020194398A1; JPWO2020194398A1; RU2771509C1; EP3895564A4; EP3895564A1

Abstract

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

Description

Method for 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, which is configured by a combustible carbonaceous heat source, an aerosol-forming substrate, and an airflow guide element (annular member), and a second multi-stage component, which has an expansion chamber and a suction nozzle, are wrapped with an outer wrapping paper. At the end of the smoking article, a removable cap is positioned adjacent the heat source, the cap being wrapped with a portion of the wrapper of the first multi-segment component.

Then, a succession of first multi-segment constituent elements, which are continuously wrapped, are cut off at portions of the airflow directing element using a cutter, the cover is formed from the same material as the airflow directing element, and the smoking article is manufactured by combining with the second multi-segment constituent elements.

The segments constituting the first and second multi-segment constituent elements other than the cover are fed from the hopper to the moving feed path, and the joint body is formed by the compactor.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2016-536673

Disclosure of Invention

Problems to be solved by the invention

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

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

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

In addition, when a smoking article is manufactured by winding up a connecting body formed together with other constituent members by roll paper in a state in which the cap is positioned at the end portion, the cap positioned at the end portion has a function as a segment that determines suitability for winding up (suitability for uniformly winding up the circumferential surface of the winding up object without deviation) when the connecting body is wound up by roll paper. However, in patent document 1, since there is no particular consideration in the case of using such a manufacturing method, if a cap having only a function as an airflow guiding element, that is, a simple tubular member is used, rolling suitability is deteriorated, and there is a possibility that quality of the smoking article may be poor.

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

Means for solving the problems

In order to achieve the above object, a method of manufacturing a smoking article according to the present invention includes: a first arranging step of supplying two rolling members, two heat sources and one fragrance source material to form a first connecting body in which the rolling members, the heat sources, the fragrance source material, the heat sources and the rolling members are arranged in a row in this order; a first winding step of integrally winding up the first connected body with a first roll paper to form a first connected body; a first cutting step of cutting the first continuous body at the fragrance source material and dividing the first continuous body into two parts to form two intermediate bars for sequentially arranging fragrance sources formed by dividing the rolling-up member, the heat source and the fragrance source material into two parts; a second arranging step of supplying the filter member material, and forming a second connecting body in which the intermediate rods, the filter member material, and the intermediate rods are arranged in order, with the flavor source sides of the two intermediate rods facing the both ends of the filter member material, respectively; a second winding step of integrally winding up the second connection body with a second roll paper to form a second continuous body; and a second cutting step of cutting the second continuous body into two parts at the filter member material to form two smoking articles in which the rolling members, the heat source, the flavor source, and the filter member material are 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 the quality of the smoking article and the productivity can be improved.

Drawings

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

Fig. 2 is a flowchart showing a process for manufacturing a smoking article.

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

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

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

Fig. 6 is a diagram showing a second alignment process (step S4).

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

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

Fig. 9 is a view showing a state in which the rolling member is separated from the smoking article.

Fig. 10 is a flowchart showing the hardness evaluation step.

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

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

Fig. 13 is a flowchart showing the recovery rate evaluation step.

Fig. 14 is a side view of the ellipsometer of fig. 12.

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

Fig. 16 is a diagram partially illustrating a smoking article of a second embodiment of the invention.

Fig. 17 is a view partially showing a smoking article of a third embodiment of the present invention.

Fig. 18 is a diagram partially illustrating a smoking article of a fourth embodiment of the present invention.

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

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

Fig. 21 is a view partially showing a smoking article of a sixth embodiment of the present invention.

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

Fig. 23 is a view partially showing a smoking article of a seventh embodiment of the present invention.

Fig. 24 is a diagram showing a smoking article according to 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

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

< first embodiment >

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

The smoking article 1 comprises: a first roll paper 6 that integrally rolls up the roll member 2, the heat source 3, and the flavor source 4; and a second roll paper 7 for further winding up the winding-up member 2 wound up by the first roll paper 6, the heat source 3, and the fragrance source 4 integrally with the filter member 5. The smoking article 1 further 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 paper 6; and a non-adhesive portion 9 for preventing the remaining portion of the heat source 3 on the winding member 2 side of the heat source 3 from adhering to the first roll paper 6. The smoking article 1 is used by detaching the rolling member 2 from the non-bonded portion 9 and exposing at least a part of the heat source 3 so that heating by ignition is possible.

[ Rolling Member ]

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

The rolling suitability means suitability capable of uniformly rolling up the circumferential surface of the rolling object without variation. The smoking article 1 provided with the rolling member 2 can eliminate the rolling failure caused by the first roll paper 6 as much as possible. The rolling member 2 may be made of any material other than paper tube, but preferably has the same hardness as the fragrance source 4, thereby improving the rolling suitability. Furthermore, the so-called release suitability, which is that only the rolling member 2 can be easily released from the smoking article 1 by the tactile sensation, 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) after the rolling member 2 and the fragrance source 4 are deformed by the application of a load is the same. The reason why the winding suitability, the detachment suitability, and the adhesion suitability are improved will be described in detail later. The winding member 2 may be a member obtained by winding a hollow filter tow around a winding paper, or a member obtained by winding a solid filter tow around a winding paper.

The length of the rolling member 2 in the axial direction X is preferably 5mm to 20mm, more preferably 10mm to 15mm, so that the rolling member can be easily pulled out or removed by a user with a finger. This can improve the detachment suitability of the smoking article 1.

[ Heat source ]

The heat source 3 is a solid material formed in a columnar shape, for example, a carbon heat source, and in the present embodiment, has a hollow portion 3a penetrating in the axial direction X. 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 flavour source 4, an aerosol comprising flavour components is effectively generated.

[ fragrance Source ]

The flavor source 4 is a columnar molded product, and is formed by wrapping at least one of cut tobacco, a molded product of a tobacco material in any shape such as a pellet shape or a sheet shape, a plant other than tobacco, and other flavors, with a roll paper 4 a. An aerosol-forming substrate is added to the flavour source 4.

The user draws the aerosol generated after the airflow heated by the heat source 3 passes through the flavour source 4. Thus, 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 below into two, both 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 arranging a tube 10 and a filter element 11 in this order from the fragrance source 4 side in an axial direction X. The tube 10 is provided for regulating the airflow 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 roll paper 11 a.

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

[ first roll paper ]

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

Second roll paper

The second roll paper 7 is made of paper having low air permeability for cigarettes. The second roll paper 7 is wound 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, a process for manufacturing the smoking article 1 will be described with reference to fig. 2 to 8. Fig. 2 is a flowchart showing a process for manufacturing the smoking article 1, and fig. 3 to 8 are views for explaining steps S1 to S6 shown in fig. 2.

[ first alignment step ] (step S1)

When the process of manufacturing the smoking article 1 starts, first, as shown in fig. 3, two rolling members 2, two heat sources 3, and one flavor source material 12 are supplied to form a first connecting body 13 in which the rolling members 2, the heat sources 3, the flavor source material 12, the heat sources 3, and the rolling members 2 are sequentially aligned in the axial direction X. The fragrance source material 12 has a length in the axial direction X of twice as much as the fragrance source 4.

Specifically, the materials constituting the first connecting body 13 are supplied by a supply unit, not shown. The materials supplied from the supply unit are arranged in the order of fig. 3, each material is sucked by the suction drum, and there is a space where new material can be supplied each time each section is reached and positioned. The supply, arrangement, and treatment of each material required in each step may be performed at one location.

[ first winding step ] (step S2)

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

In this rolling, by positioning the rolling members 2 at the both ends of the first connecting body 13, respectively, the both ends of the first connecting body 13 are not crushed, and the peripheral surface of the first connecting body 13 can be rolled up uniformly by the first roll paper 6 without variation. Therefore, the rolling suitability of the first connecting body 13 is improved. Further, since the winding roller presses the entire first connecting body 13 as described above, not only the winding member 2 but also the fragrance source material 12 are present on the first connecting body 13, which is one of the main reasons for improving the winding suitability of the first connecting body 13.

Since the diameter of the heat source 3 is slightly smaller than the diameters of the rolling member 2 and the flavor source material 12, the heat source 3 is not in contact with the rolling roller at the time of rolling. Therefore, the hardness and the like of the heat source 3 have no influence on the roll-up suitability. Further, 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 winding up the smoking article 1 is formed.

When the first connecting body 13 is wound up by the first roll paper 6, an adhesive portion 8 for adhering the first connecting body 13 to 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.

More specifically, the adhesive is applied to the inner peripheral surface of the first roll paper 6 in the state of the first continuous body 14 in a region (the entire peripheral surface or a part of the peripheral surface) continuous in the axial direction X facing the rolling member 2, a part of the heat source 3, and the flavor source material 12, and the first continuous body 13 is rolled up by the first roll paper 6 to form the adhesive portion 8.

On the other hand, the adhesive is not applied to the inner peripheral surface of the first roll paper 6 in a region (the entire peripheral surface or a part of the peripheral surface) continuous in the axial direction X facing a part of the heat source 3 and the winding member 2, and the first joint member 13 is wound up by the first roll paper 6 to form the non-adhesive portion 9. The smoking article 1 is used by detaching at least a part of the rolling member 2 from 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. In addition, it is not necessary to make the leading ends of the winding member 2 protrude from both ends of the first roll paper 6, respectively.

[ first cutting step ] (step S3)

Next, as shown in fig. 5, the first continuous body 14 is cut by a cutter, not shown, at a portion indicated by a broken line of the flavor source material 12, and is divided into two pieces, so that two intermediate bars 15 are formed, each of which is formed by dividing the roll-up member 2, the heat source 3, and the flavor source material 12 into two pieces, and the flavor sources 4 are aligned in the axial direction X in this order.

[ second alignment step ] (step S4)

Next, as shown in fig. 6, after the two intermediate rods 15 are separated in the axial direction X, the filter element material 16 is supplied between the intermediate rods 15. The two intermediate levers 15 may be maintained in the direction of the cut state in step S3, and the direction change after the inversion is not required. The filter member material 16 is formed of a filter element material 17 and a tube 10, the filter element material 17 having a length twice as long as the filter element 11 in the axial direction X, and the tube 10 being disposed at both ends of the filter element material 17, respectively.

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

[ second winding step ] (step S5)

Next, as shown in fig. 7, the second continuous body 19 is formed by winding up the second connection body 18 with the second roll paper 7. Specifically, the second roll paper 7 is supplied to the winding unit similar to that in step S2, and the second connecting body 18 is disposed on the second roll paper 7. Then, the second roll paper 7 is substantially uniformly pressed by the roll-up roller over a continuous region from the filter element material 16 to the fragrance sources 4 of the two intermediate levers 15 in the axial direction X, and is rolled up at the same time.

In this rolling, by positioning the flavor sources 4 at the both ends of the second connecting body 18, the filter material 16 and the peripheral surface of the flavor source 4 of the intermediate lever 15 can be uniformly rolled up by the second roll paper 7 without variation. Accordingly, the rolling suitability of the second connecting body 18 is improved, and the second continuous body 19 satisfying the rolling suitability quality of the smoking article 1 is formed.

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. Thus, when the rolling member 2 is separated from the smoking article 1, the second roll paper 7 does not need to be torn, and thus the separation of the rolling member 2 is easy.

When the second connecting body 18 is wound up by the second roll paper 7, the filter element material 16 in the second continuous body 19 is firmly connected to the intermediate rod 15 by being appropriately bonded to an unshown bonding portion.

[ second cutting step ] (step S6)

Next, as shown in fig. 8, the second continuous body 19 is cut by a cutter, not shown, at a portion indicated by a broken line of the filter member material 16, and is divided into two parts to form two smoking articles 1, and the smoking articles 1 are formed by arranging the rolling member 2, the heat source 3, the flavor source 4, and the filter member 5 formed by dividing the filter member material 16 into two parts in this order in the axial direction X. This completes the manufacturing process of the smoking article 1.

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 member 2 is pulled in the axial direction X, and the first roll paper 6 is torn in the circumferential direction at the non-adhesive portion 9, whereby the rolling member 2 can be removed from the smoking article 1. As a result, as shown in fig. 9, the heat source 3 is exposed at the tip of the smoking article 1, and the heat source 3 can be ignited. In the process of manufacturing the smoking article 1, a step of separating the rolling member 2 may be provided, and the smoking article 1 from which the rolling member 2 is separated may be processed as a finished product.

Here, when detaching the rolling 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 member 2 from the smoking article 1 at the non-adhesive portion 9. That is, when using the smoking article 1, if it is difficult to determine the presence of the rolling member 2 or even the boundary between the rolling member 2 and the heat source 3 (i.e., the position of the non-adhesive portion 9) by tactile sensation, the user may detach not only the rolling member 2 but also the heat source 3 or the intermediate lever 15 including the flavor source 4.

Therefore, in the present embodiment, in order to further improve the suitability for rolling up in the smoking article 1 and to apply the detachment suitability for easily detaching only the rolling-up member 2 from the smoking article 1 by the tactile sensation to the smoking article 1, 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.

[ hardness measurement ] (step S11)

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

Fig. 11 shows a side view of the hardness measuring unit 20 used in 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, a lifter 25, and the like. The pair of support walls 22 are erected parallel to 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 bars 24 are disposed to face the upper sides of the two lower bars 23, and are supported by a lifter 25 so as to be movable up and down.

First, one of the rolling member 2, the heat source 3, and the flavor source material 12 (hereinafter, also referred to as the measurement object a) is placed so as to bridge the paired support walls 22 and lower rods 23. By disposing a plurality of measurement objects a along the extending direction of the support wall 22 and the lower rod 23, the hardness of a plurality of (for example, 20) measurement objects a can be measured at a time. The flavor source 4 obtained by dividing the flavor source material 12 into two has the same hardness as the flavor source material 12, and therefore the smoking article 1 itself or the flavor source 4 constituting the smoking article may be used as the measurement target a.

Next, when the lifter 25 is operated to lower the upper lever 24 in the arrow direction of fig. 11, the object a is sandwiched between the upper lever 24 and the lower lever, and a load is applied to the 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 center portion of the object a in the longitudinal direction to measure the hardness.

The hardness measurement was performed based on an average value of deformation amounts of the respective measurement objects a when a load of 19.6N was applied to the 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 a single-dot chain line, and shows the cross-sectional shape of the measurement object a when the load F is applied by a solid line. The measuring object a has a circular cross section before the load F is applied, an initial height H1 (=the diameter of the measuring object a), an elliptical cross section when the load F is applied, and 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 measurement object a is measured based on the ratio (percentage) of the remaining height H2 to the initial height H1. In this evaluation, an average value of the hardness of 20 measured objects a was calculated, and the average value was defined as the hardness of the measured object a, that is, the hardness of any one of the rolling member 2, the heat source 3, and the flavor source material 12. The following is the same.

The smaller the difference (Δh) between the initial height H1 and the remaining height H2, the larger the hardness value, and the harder the object a was determined. When the heat source 3 is a carbon heat source, if the hardness is determined by using the object a as the carbon heat source, the remaining height H2 is equal to the initial height H1, and the measured value of the hardness is 100%. Therefore, the hardness of the heat source 3 is set to 100%, and the following description will be made.

Then, in order to improve both the suitability for rolling and the suitability for detachment, it was found from the experiments of the inventors that, when the hardness Hh of the heat source is defined as 100%, the hardness Hw of the rolling member 2 and the hardness Hf of the flavor source material 12 preferably have a value of 60% or more and 95% or less, more preferably 65% or more and 80% or less, and even more preferably, the difference in the value of the hardness Hw of the rolling member 2 and the hardness Hf of the flavor source material 12 is 30% or less, and even more preferably, the difference in the value of the hardness is 15% or less. Therefore, in the present embodiment, the hardness is evaluated by performing the determination in at least any one of the following 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 the hardness Hw of the rolling member 2 and the hardness Hf of the flavor source material 12 are 60% or more and 95% or less. If the result of the determination is yes, it is determined that the difference in hardness ((Hh-Hw) and (Hh-Hf)) between the heat source 3 and the rolling member 2 and the flavor source material 12 adjacent to both sides thereof is present to some extent in the smoking article 1, so that the required rolling suitability can be ensured, and the user can easily recognize the boundary between the rolling member 2 and the heat source 3 by touch, so that the required releasing suitability can be ensured, and after the process shifts to step S15 and the reception is permitted, the process is ended.

On the other hand, if the determination result is no, the rolling member 2 and the flavor source material 12 are too soft, and it is determined that the rolling suitability cannot be ensured, or if the rolling member 2 and the flavor source material 12 are as hard as the heat source 3, the rolling member 2 and the heat source 3 may be separated, or the intermediate lever 15 may be separated, and therefore, it is determined that the separation suitability cannot be ensured, and after the process shifts to step S16 and the reception is refused, the process is terminated.

[ second hardness determination ] (step S13)

When the hardness Hh of the heat source 3 is set to 100%, it is determined whether or not the difference between the hardness Hw of the rolling member 2 and the hardness Hf of the flavor source material 12 is 30% or less. When the result of the determination is yes, since the difference in hardness between the rolling member 2 and the flavor source material 12 (|hw-hf| (absolute value)) is small, the hardness of the rolling member 2 and the flavor source material 12 approaches, whereby it is determined that the rolling suitability is further improved, the hardness of the heat source 3 sandwiched between the rolling member 2 and the flavor source 4 is further emphasized, the boundary between the rolling member 2 and the heat source 3 is more easily recognized by the user by the touch, and therefore it is determined that the detachment suitability is further improved, and after shifting to step S15 and allowing reception, the process is ended.

On the other hand, if the result of the determination is negative, the difference in hardness between the rolling member 2 and the flavor source material 12 is too large, and it is determined that the rolling suitability cannot be ensured, or if the difference in hardness occurs due to the rolling member 2 or the flavor source material 12 being as hard as the heat source 3, the rolling member 2 and the heat source 3 may be separated, or the intermediate lever 15 may be separated, and the process may be terminated after shifting to step S16 and refusing to receive the product.

Third hardness determination (step S14)

When the hardness Hh of the heat source 3 is set to 100%, it is determined whether or not the difference between the hardness Hw of the rolling member 2 and the hardness Hf of the flavor source material 12 is 15% or less. When the result of the determination is yes, since the difference in hardness between the rolling member 2 and the flavor source 4 (|hw-hf|) is smaller, the hardness of the rolling member 2 and the flavor source material 12 is further closer, whereby it is determined that the rolling suitability is further improved, the hardness of the heat source 3 sandwiched between the rolling member 2 and the flavor source 4 is emphasized further, the boundary between the rolling member 2 and the heat source 3 is more easily recognized by the user by the touch, and therefore it is determined that the detachment suitability is further improved, and after shifting to step S15 and allowing the reception, the process is ended.

On the other hand, if the determination result is no, the hardness of the rolling member 2 and the fragrance source 4 is slightly high, and it is determined that the rolling suitability is not necessarily ensured, or the possibility of the rolling member 2 and the fragrance source 4 being separated or separated together with the intermediate lever 15 cannot be eliminated, and it is determined that the separation suitability is not necessarily ensured, and after the process shifts to step S16 and the reception is refused, the process is terminated.

Here, in order to bond the first connecting body 13 and the first roll paper 6 together without any deviation at the bonding portion in the first rolling step, the compressive strength of the rolling member 2 and the flavor source material 12 is important. This is because, in the manufacturing process of the smoking article, the rolling member 2 and the flavor source material 12 may be crushed during the manufacturing process, and if the first rolling process is performed in a state in which the rolling member 2 and the flavor source material 12 are crushed, the rolling suitability is certainly deteriorated, and a gap is generated in the adhesive portion 8, so that the first joint body 13 and the smoking article 1 are not adhered well.

Therefore, in the present embodiment, in order to further improve the suitability for rolling up the smoking article 1 and to provide the smoking article 1 with so-called suitability for adhesion, which is a suitable adhesion between the first connecting body 13 and the first roll paper 6 at the adhesive portion 8, the recovery rate evaluation step of the smoking article 1 is performed.

The recovery rate evaluation step will be described below with reference to a flowchart showing the recovery rate evaluation step of fig. 13.

[ recovery Rate measurement ] (step S21)

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

Fig. 14 shows a side view of the recovery rate measurement unit 30 used for recovery rate measurement.

The recovery rate measurement unit 30 includes a base 31, a disk 32, a lifter 33, and the like. The circular surface of the disk 32 is disposed facing the base 31, and is supported by a lifter 33 so as to be movable up and down.

First, after the rolling member 2 or the flavor source material 12 (hereinafter, also referred to as "measurement object B") is placed on the base 31, as shown in fig. 14, when the disk 32 is lowered by operating the lifter 33, 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, the flavor source 4 obtained by dividing the flavor source material 12 into two has the same recovery rate as the flavor source material 12, and therefore the flavor source 4 may be the object of measurement B.

The recovery rate measurement was performed based on the ellipticity at 5 minutes after applying a load to the object B for 1 minute to compress the object B to 1/2 of the diameter.

Fig. 15 shows the cross-sectional shape of the measurement object B before the load F is applied by a one-dot chain line, and shows the cross-sectional shape of the measurement object B immediately after the load F is applied and placed by a solid line.

The measuring 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 placed, and has a long diameter Da and a short diameter Db.

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

Ellipticity (%) =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 value of the ellipticity, and the larger the restoration rate of the object B is determined.

Then, in order to improve both the rolling suitability and the bonding suitability, according to the experiments of the inventors, it was found that the value of the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the flavor source material 12 is preferably 40% or less, more preferably, the value difference between the ellipticity Ew of the rolling member 2 and the ellipticity Ef of the flavor source material 12 is 30% or less, and even more preferably, the value difference between the ellipticity is 15% or less. Therefore, in the present embodiment, the ellipticity evaluation is performed by performing the determination in at least any one of the following 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 the determination result is yes, since the recovery rate of the roll-up member 2 and the flavor source material 12 is relatively high, it is determined that the required roll-up suitability can be ensured, and the first connecting body 13 and the first roll paper 6 can be bonded to each other without any deviation at the bonding portion 8 in the first roll-up step, and after the process shifts to step S25 and reception is allowed, the process is terminated.

On the other hand, if the determination result 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 cannot be ensured, or if the recess of the roll-up member 2 or the flavor source material 12 generated in the manufacturing process generates a non-adhesive region at the adhesive portion 8 or peeling of the first roll paper 6 at the adhesive portion 8 is likely to occur, it is determined that the adhesive suitability cannot be ensured, and after the process shifts to step S26 and the reception is refused, the process ends.

[ 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 the result of the determination is yes, since the difference in ellipticity between the rolling member 2 and the flavor source material 12 (|ew-ef| (absolute value)) is small, the recovery rates of the rolling member 2 and the flavor source material 12 approach each other, and it is determined that the rolling suitability is further improved, and it is difficult to make a difference in the manner of adhesion between the rolling member 2 and the flavor source material 12 at the adhesion portion 8, and it is determined that the adhesion suitability is further improved, and after the process shifts to step S25 and reception is allowed, the process is terminated.

On the other hand, if the determination result is no, the difference in recovery rates between the roll-up member 2 and the flavor-source material 12 is too large, and it is determined that the roll-up suitability cannot be ensured, or the adhesion failure may occur due to the difference in the adhesion manner between the roll-up member 2 and the flavor-source material 12 at the adhesion portion 8, and it is determined that the adhesion suitability cannot be ensured, and after the process shifts to step S26 and the reception is refused, 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 the result of the determination is yes, since the difference in ellipticity (|ew-ef|) between the rolling member 2 and the flavor source material 12 is further small, the recovery rates of the rolling member 2 and the flavor source material 12 are further closer, and it is determined that the rolling suitability is further improved, and the difference in the manner of adhesion between the rolling member 2 and the flavor source material 12 at the adhesion portion 8 is further less likely to occur, and it is determined that the adhesion suitability is further improved, and after the process shifts to step S25 and reception is allowed, the process is ended.

On the other hand, if the determination result is no, the recovery rate of the roll-up member 2 and the flavor source material 12 is slightly high, and it is determined that the roll-up suitability is not necessarily ensured, or the possibility of causing the adhesion failure of the roll-up member 2 and the flavor source 12 is not eliminated, and it is determined that the adhesion suitability is not necessarily ensured, and the process is terminated after the process proceeds to step S26 and the reception is refused.

As described above, in the present embodiment, by manufacturing the smoking article 1 by the steps S1 to S6, the smoking article 1 can be manufactured using the long segments (constituent members) having the large aspect ratio. Therefore, at the time of manufacture, it is not necessary to strictly manage the posture of the segment in order to suppress the rotation of the segment, and it is also possible to dispense with the provision of equipment for this purpose, so that both the quality improvement and the productivity improvement of the smoking article 1 can be achieved.

In the first cutting step, the first continuous body 14 is cut into two pieces 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 into two pieces in the filter member material 16 to form two smoking articles 1. Therefore, by dividing the continuous body that is bilaterally symmetrical in the axis direction X into two to form two identical members, the smoking article 1 can be manufactured efficiently, and productivity of the smoking article 1 can be improved, as compared with the case where a plurality of small segments cut or formed in advance are individually supplied to form a joined body, and then the continuous body is formed to manufacture the smoking article 1.

In the series of steps S1 to S6, the rolling member 2 is always positioned at both ends of each of the connecting

members

13 and 18, the intermediate lever 15, and the

continuous members

14 and 19. In particular, when the first continuous body 14 is formed, the rolling-up suitability of the smoking article 1 can be improved and further improvement in quality of the smoking article 1 can be achieved by positioning the rolling-up member 2 at both ends when the first continuous body 13 is rolled up by the first roll paper 6.

In the first winding step, an adhesive portion 8 for adhering the first connecting body 13 to the first roll paper 6 and a non-adhesive portion 9 for not adhering at least a part of the heat source 3 to the winding member 2 side of each heat source 3 are formed. Thereby, at least a part of the winding member 2 is detached from the non-adhesive portion 9, and at least a part of the heat source 3 is exposed to enable heating by ignition.

Further, by performing the hardness evaluation step described above, the rolling suitability of the smoking article 1 can be further improved, and the detachment suitability can be imparted to the smoking article 1. Specifically, in the hardness evaluation step, the hardness of the rolling member 2, the heat source 3, and the flavor 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 following receiving permission is issued only to the rolling member 2 and the fragrance source material 12: is softer than the heat source 3, and the user can easily recognize the boundary between the rolling member 2 and the heat source 3 by touch, thereby ensuring detachment suitability.

Further, by performing the second and third hardness determinations, the receiving permission is issued only to the following roll-up member 2 and the fragrance source material 12: 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 emphasized by the approaching hardness, and the user can more easily recognize the boundary between the rolling member 2 and the heat source 3 by feeling, thereby further improving the detachment suitability. It should be noted that all of the first to third hardness determinations may be performed, 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 suitability and the releasing suitability of the smoking article 1 are improved.

Further, by performing the recovery rate evaluation step described above, the suitability for rolling up can be further improved in the smoking article 1, and the suitability for adhesion can be imparted to the smoking article 1. Specifically, the recovery rate evaluation step was based on the ellipticity when the roll-up member 2 and the flavor source material 12 were compressed to a load of 1/2 of the diameter for 1 minute and then left to stand for 5 minutes, and the recovery rates thereof were measured. Then, by performing the first ellipticity determination, the following receiving permission is issued only to the rolling-up member 2 and the fragrance source material 12: the restoration rate is relatively high, and therefore, it is determined that the required roll-up suitability can be ensured, and that the first connecting body 13 and the first roll paper 6 can be bonded to each other without a deviation at the bonding portion 8 in the first roll-up step.

Further, by performing the second and third ellipticity determinations, the receiving permission is issued only to the following roll-up member 2 and fragrance source material 12: the recovery rates of the members are close to each other, so that the rolling suitability is further improved, and the difference in the bonding method between the rolling member 2 and the flavor source material 12 in the bonding portion 8 is further less likely to occur, so that the bonding suitability is further improved. It should be noted that not all of the first to third ellipticity determinations may 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 adhesion suitability of the smoking article 1 are improved.

As described above, the smoking article 1 according to the present embodiment not only improves the rolling suitability by providing the rolling member 2, but also improves the rolling suitability and the releasing suitability by evaluating the hardness of the rolling member 2 and the flavor source material 12, and further improves the rolling suitability and the adhesion suitability by evaluating the recovery rate of the rolling member 2 and the flavor source material 12.

The description of the embodiments of the present invention has been completed, but the present invention is not limited to this, 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 is more preferably, and is not limited to the above configuration. Therefore, the following describes another smoking article 1 to which the above-described method for manufacturing the smoking article 1 can be applied.

< second embodiment >

As shown in the smoking article 1 (only the intermediate rod 15 is partially shown) of fig. 16, the outer peripheral surface 6a of the first web 6 when the first connecting body 13 is rolled up is a non-coated surface that is not coated with a pigment such as calcium carbonate. The first roll paper 6 preferably has a weight per unit area of 70g/m ² ～140g/m ² Is of (2)A high density paper. The first roll paper 6 having such a weight per unit area may be a metal-laminated paper, for example, an aluminum-laminated paper, as described above.

By making the outer peripheral surface 6a of the first roll paper 6a non-coated surface from which the paper material is peeled off, the production cost of the smoking article 1 can be reduced. Further, by making the first roll paper 6a high-density paper, it is possible to suppress scorching of the first roll paper 6 when the heat source 3 heats the smoking article 1 in use, and it is possible to impart an appropriate tensile strength to the first roll paper 6, thereby making it possible to secure the connection of the segments by the first roll paper 6. This further improves the quality of the smoking article 1.

< third embodiment >

As shown in the smoking article 1 (only the intermediate lever 15 is partially shown) of fig. 17, the non-adhesive portion 9 is a thin portion 6c of the first roll paper 6 having a thickness thinner than that of the adhesive portion 8, and the thickness of the thin portion 6c is, for example, 1/2 or less of that of the first roll paper 6. Thus, the rolling member 2 is easily separated from the non-adhesive portion 9, and thus the detachment suitability of the smoking article 1 is further improved.

< fourth embodiment >

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

In this case, the first roll paper 6 may be aluminum laminated paper in which the heat conductive element 40 is laminated on a paper material. Such aluminum laminated paper may be two layers of paper or aluminum (in this case, the outer peripheral side at the time of winding is paper), or may be three layers of paper, aluminum, or paper. In addition, when the first roll paper 6 is an aluminum laminated paper, aluminum is preferably not present at the center position in the axial direction X of the flavor source 4. 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.

In the first continuous body 14, the fragrance source materials 12 may be disposed so as to span two. The heat conducting element 40 may be made of any material, but preferably a metal foil (e.g. aluminum foil). By disposing the heat conductive element 40, heat transfer from the heat source 3 to the fragrance source 4 is promoted, and therefore, aerosol can be generated from the fragrance source 4 more effectively.

< fifth embodiment >

Fig. 19 shows a plan view of the first roll paper 6 as seen from the inner peripheral surface 6b side by being unwound. A metal foil 41 (for example, aluminum foil) as a heat conductive member 40 is bonded to the inner peripheral surface 6b of the first roll paper 6, and the first roll paper 6 constitutes a metal bonding paper. The metal foil 41 is bonded to the first roll paper 6 at three positions in the center in the winding direction Y, except for the two end portions 42 in the winding direction Y. The three-position metal foil 41 is disposed across the two end portions 42 with two straight portions 43 extending in the winding direction Y therebetween. That is, the two end portions 42 and the two straight portions 43 are formed of a paper material.

Fig. 20 shows a cross-sectional view of the first continuous body 14 in the case of using the first roll paper 6 as the metal-bonded paper. The two straight portions 43 made of only paper material are formed at the portions corresponding to the non-bonded portions 9, that is, the metal foil 41 is bonded except for at least the portions corresponding to the non-bonded portions 9 of the inner peripheral surface 6 b. In this way, the release of the rolling member 2 is easily performed in each linear portion 43, and therefore, the suitability of the smoking article 1 for release can be ensured.

On the other hand, the adhesive portion 8 is formed at both end portions 42 of the inner peripheral surface 6b, that is, at a portion other than the metal foil 41. This improves the adhesiveness of the first roll paper 6 and improves the adhesiveness of the smoking article 1, as compared with the case where the adhesive is applied to the metal foil 41 to form the adhesive portion 8. Further, by integrating the metal foil 41 as the heat conductive element 40 by bonding to the inner peripheral surface 6b, even if the first roll paper 6 is not subjected to processing (forming a line of weakness such as perforation) for improving the detachment suitability, the outer peripheral surface 6a can be formed flat, 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 (only the intermediate rod 15 is partially shown) of fig. 21, the rolling member 2 is composed of two

separate bodies

2a, 2b that can be separated by the non-adhesive portion 9. The separator 2a is provided at the tip of the rolling member 2 to ensure a predetermined length of the rolling member 2 in the axial direction X, and mainly has a function of improving rolling suitability. Therefore, the separator 2a is disposed on the non-adhesive portion 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 completed smoking article 1.

By forming the adhesive portion 8 as a thin layer of about 1 to 2 μm, the gap between the separator 2a and the first roll paper 6 shown in fig. 21 is made small. Therefore, the separator 2a is locked to the first roll paper 6 by friction when the first roll paper 6 is wound up, and is not easily separated.

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 region where the separator 2b of the first roll paper 6 is disposed. In this way, the rolling member 2 is formed of the two

separate bodies

2a, 2b, and the functional separation is achieved, whereby the degree of freedom in design of the smoking article 1 can be improved.

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

separators

2a, 2 b. This can prevent the separator 2a from accidentally falling off. In order to easily detach the separator 2a, the number of the coupling portions 2c is preferably one or two.

< seventh embodiment >

As shown in the smoking article 1 (only the intermediate rod 15 is partially shown) of fig. 23, the first roll paper 6 has a ventilation hole 6d through which the flavor source 4 can be ventilated from the vicinity of the heat source 3. Such a vent hole may be provided on the outer peripheral side of the fragrance source 4. The heat source 3 may be a heat source that solidifies and forms a particulate material other than carbon, as shown in fig. 23, and may not have the hollow portion 3a, as long as it burns and generates heat by ignition.

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 in the case where the hollow portion 3a is not provided, ventilation air reaching the fragrance source 4 from the ventilation hole 6d via the heat source 3 can be generated. 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 formed in the peripheral surface of the heat source 3. In addition, in the case where at least one of the hollow portion 3a and the ventilation hole 6d is provided, the heat transfer efficiency is improved, and therefore the heat transfer element 40 may not be required.

< 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 this order in the axial direction X from the flavor source 4 side. The cooling element 50 is formed by wrapping a sheet-like paper, a biodegradable polymer, or the like by a wound paper 50 a. 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 the wound paper 51. Thus, the filter member material 16 is composed of only two members, i.e., the tube 10 and the two-stage attachment 52, and thus the operability of the members in the second alignment step is improved, and the productivity of the filter member 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 the wrapping paper 51. Thus, since the filter member material 16 is composed of only one member of the three-stage attachment 53, the operability of the members in the second alignment step is further improved, and the productivity of the filter member 5 and the smoking article 1 is further improved.

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

Description of the reference numerals

1 smoking article

2 winding-up member

3 heat source (carbon heat source)

4 flavor source (tobacco material)

5 Filter element

6 first roll paper

7 second roll paper

8 adhesive part

9 non-adhesive portion

12 fragrance source material

13 first connecting body

14 first continuum

15 intermediate lever

16 filter element material

18 second connecting body

19 second continuum

Claims

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

a first arranging step of supplying two rolling members, two heat sources, and one flavor source material to form a first connecting body in which the rolling members, the heat sources, the flavor source material, the heat sources, and the rolling members are sequentially arranged in a row;

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

a first cutting step of cutting the first continuous body at the flavor source material to form two intermediate bars in which flavor sources formed by dividing the rolling member, the heat source, and the flavor source material into two are sequentially aligned;

a second alignment step of supplying a filter member material, and forming a second connecting body in which the intermediate rods, the filter member material, and the intermediate rods are aligned in this order, with the flavor source sides of the two intermediate rods facing the both ends of the filter member material, respectively;

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

a second cutting step of cutting the second continuous body into two parts at the filter member material to form two smoking articles in which filter members formed by dividing the rolling member, the heat source, the flavor source, and the filter member material into two parts are sequentially arranged in a row,

the rolling member is positioned at both ends of the first connecting body formed in the first arranging step, thereby improving rolling suitability when rolling by the first roll paper in the first rolling step, and is used for covering and protecting the heat source at the time of manufacturing and before use of the smoking article,

The first winding step is to form, on the first continuous body, an adhesive portion for adhering the first continuous body to the first roll paper and a non-adhesive portion for non-adhering a part of the heat source to the first roll paper on the winding member side when the first continuous body is wound up with the first roll paper,

the smoking article is used by detaching at least a part of the rolling member from the non-bonded portion and exposing at least a part of the heat source so that heating by ignition is possible.

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

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

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

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

4. A method of manufacturing a smoking article according to claim 3, wherein,

in the hardness evaluation step, when the hardness of the heat source is set to 100%, the hardness of the rolling member and the flavor source material is determined to be 60% to 95%.

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

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 member and the hardness of the flavor source material is 30% or less.

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

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 member and the hardness of the flavor source material is 15% or less.

7. The method of manufacturing a smoking article of claim 1, wherein,

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

8. The method of manufacturing a smoking article of claim 7, wherein,

in the recovery rate evaluation step, the recovery rate of the rolling-up member and the flavor source material is measured based on the ellipticity of the rolling-up member and the flavor source material after the rolling-up member and the flavor source material are compressed to a load of 1/2 of their diameters for 1 minute and left for 5 minutes.

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

in the recovery rate evaluation step, it is determined that the ellipticity of the rolling member and the flavor source material is 40% or less.

10. The method of manufacturing a smoking article according to claim 8 or 9, wherein,

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

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

in the recovery rate evaluation step, it is determined that the difference between the ellipticity of the rolling member and that of the flavor source material is 15% or less.

12. A method of manufacturing a smoking article according to claim 1, wherein the heat source is a carbon heat source.

13. A method of manufacturing a smoking article according to claim 1, wherein the flavour source is a tobacco material.