CN117580470A

CN117580470A - Fragrance inhalation article

Info

Publication number: CN117580470A
Application number: CN202180099954.0A
Authority: CN
Inventors: 本溜哲也
Original assignee: Japan Tobacco Inc
Current assignee: Japan Tobacco Inc
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2024-02-20
Also published as: JPWO2023276111A1; EP4364586A1; US20240122235A1; WO2023276111A1; KR20240008909A

Abstract

A flavor inhaling article (1) is provided with a flavor element (2) heated in a non-combustion manner and a tubular element (4) forming an airflow path, wherein the tubular element (4) is provided with a hollow paper tube (26) in a cylindrical shape and a paper liner (28) arranged in the paper tube (26) along the axial direction (X) of the paper tube (26), and the total length of the sections of the liner (28) in the pipe diameter direction (Y) of the paper tube (26) is larger than the inner diameter (d) of the paper tube (26).

Description

Fragrance inhalation article

Technical Field

The present invention relates to a fragrance inhalation article.

Background

Patent document 1 discloses a non-combustion heating type aerosol-generating article. The aerosol-generating article, in other words, the flavor-absorbing article, comprises a flavor element and a filter element adjacent to each other. The flavour element may be formed, for example, by filling tobacco material. The filter element is formed by filling a filter material, and a hollow portion is formed in the center in the radial direction thereof. The fragrance component is adsorbed on the inner peripheral surface of the hollow portion. By heating the fragrance element with the heater of the device (fragrance inhaler), the volatilized fragrance component is cooled by the filter element, thereby generating an aerosol of fragrance component, which is inhaled by the user.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2020-508075.

Disclosure of Invention

Technical problem to be solved by the invention

The heating temperature of the fragrance element is lower for the non-combustion heated fragrance intake article than for the combustion heated article. Therefore, the amount of the aroma component volatilized from the aroma element decreases, and the amount of aerosol of the aroma component generated also decreases. The filter element described in patent document 1 has a hollow portion, and further, a flavor component is adsorbed on an inner peripheral surface of the hollow portion. However, since the filter material is present as the filter body on the outer periphery of the hollow portion, a part of the flavor component volatilized by the flavor element is cooled in the hollow portion and is aerosolized, but the remaining flavor component may be filtered by the filter material before aerosolization. Therefore, there is a risk that the aroma components supplied to the user are further reduced.

Therefore, in order to aerosolize the flavor component volatilized from the flavor element before filtration and supply it to the user, it is conceivable to provide the cooling section adjacent to the flavor element not as a filter element but as a tubular element such as a paper tube. However, the single paper tube simply passes the volatilized flavor component along with the air stream, and thus, it is difficult to generate aerosol, and it is impossible to provide a cooling section suitable for a flavor-absorbing article of a non-combustion heating type.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a flavor-absorbing article which can be supplied to a user without reducing the flavor component of a flavor element as much as possible and which has a function of a cooling section instead of a filter element.

Technical scheme for solving technical problems

In order to achieve the above object, a flavor inhalation article according to one aspect is a flavor inhalation article comprising a flavor element heated in a non-combustion manner and a tubular element forming an airflow path, the tubular element comprising a hollow paper tube having a cylindrical shape and a paper liner disposed in the paper tube in an axial direction of the paper tube, wherein a total cross-sectional length of the liner in a pipe diameter direction of the paper tube is larger than an inner diameter of the paper tube.

ADVANTAGEOUS EFFECTS OF INVENTION

A fragrance inhalation article which can be supplied to a user with as little fragrance component as possible from a fragrance element and which has a function of a cooling section instead of a filter element can be provided.

Drawings

Fig. 1 is a transverse cross-sectional view of a fragrance absorbing article.

Fig. 2 is a transverse cross-sectional view of another embodiment of a fragrance absorbing article.

Fig. 3 is a longitudinal cross-sectional view of the tubular element.

Fig. 4 is a cross-sectional view of a paper tube when the paper tube is unfolded in the tube diameter direction.

Fig. 5 is a longitudinal cross-sectional view of the tubular element of the further embodiment of fig. 3.

Fig. 6 is a longitudinal cross-sectional view of the tubular element of the other alternative embodiment of fig. 3.

Fig. 7 is a cross-sectional view of the paper tube of fig. 3 when the paper tube is unfolded in the tube diameter direction.

Fig. 8 is a schematic view of a tubular element (liner with a longitudinal section in the shape of a saw tooth) of different configurations.

Fig. 9 is a schematic view of a tubular element of a different form (the liner being of a saw tooth shape in another form in longitudinal section).

Fig. 10 is a schematic view of a tubular element of a different configuration (the liner being of a zigzag shape in longitudinal section in another configuration).

Fig. 11 is a schematic view of a tubular element (liner in a star shape in longitudinal section) of different configurations.

Fig. 12 is a schematic view of a tubular element of different form (three separate liners of circular shape in longitudinal section).

Fig. 13 is a schematic view of a device for manufacturing a tubular element.

Fig. 14 is a flowchart illustrating a method of manufacturing a tubular element.

Fig. 15 is a transverse cross-sectional view of the rotor barrel.

Fig. 16 is a graph showing the proportion of the fragrance raw material scattered from the fragrance element.

Fig. 17 is a schematic view of a test apparatus for obtaining the results of fig. 16.

Fig. 18 is a graph showing the maximum load until buckling when the tubular element is pressed in the axial direction thereof.

Fig. 19 is a schematic view of a test apparatus for obtaining the result of fig. 18.

Fig. 20 is a graph showing the maximum load until buckling when the liner is pressed in the axial direction.

Fig. 21 is a schematic view of a test apparatus for obtaining the results of fig. 20.

Fig. 22 is a schematic view of a test apparatus for a temperature measurement test of an article.

Fig. 23 is a graph showing temperature changes in time series at measurement points P1, P2, and P3 in fig. 22.

Fig. 24 is a transverse cross-sectional view of each article used in the comparative examples and examples of the fragrance component delivery test.

Fig. 25 is a graph showing the amounts of fragrance components delivered for each number of puffs in each article of fig. 24 in a time chart.

Fig. 26 is a schematic view of the tubular member of embodiment 2 of fig. 24.

Fig. 27 is a schematic view of the fragrance element of comparative example 1 of fig. 23.

Detailed Description

< fragrance inhalation article >)

Hereinafter, the flavor inhalation article 1 will be described with reference to fig. 1 and 2. Fig. 1 is a transverse sectional view showing a flavor inhaling article 1. The flavor inhalation article 1 (hereinafter also referred to as article) is of a non-combustion heating type, and is composed of a flavor element 2, a tubular element 4, a first filter element 6, and a second filter element 8 in this order from the left side as viewed in fig. 1. The fragrance element 2 is formed by filling a fragrance raw material 10.

The device (scent inhaler) used for heating the scent element 2 is provided with a heater 12 in the shape of a needle, for example. Fig. 1 only shows the heater 12 of the device. The article 1 is placed on the apparatus and the heater 12 is inserted into the fragrance element 2 for heating. Thus, the flavor component impregnated in the flavor raw material 10 of the flavor element 2 or contained as particles volatilizes and vaporizes. The flavour element 2 may be a tobacco rod comprising tobacco material as the flavour material 10. The tobacco raw material is constituted, for example, by cut tobacco or shredded tobacco sheets.

The first filter element 6 is a filter body filled with a filter material 14 such as acetate tow or a nonwoven fabric sheet, and has a hollow portion 16 formed in the center in the radial direction. The second filter element 8 is a filter body filled with the same filter material 14 as the first filter element 6 or a different filter material 14 than the first filter element 6. The peripheral surfaces of the fragrance element 2 and the first and second filter elements 6, 8 are respectively wound up by a roll paper 18.

The elements 2, 4, 6, 8 are coaxially aligned and arranged in a ground contact manner, and are connected to each other by winding a sheet 20 around the peripheral surface of a continuous body constituted by the elements 2, 4, 6, 8. A ventilation hole 22 is formed in the tubular element 4 and the sheet 20, and the ventilation hole 22 is used for sucking air into the article 1 when sucking the article 1. The air sucked into the article 1 from the outside through the vent hole 22 cools the flavor component of the flavor element 2 and the volatile component of the additive to be described later, and promotes the aerosolization of these components. The structure of the filter element as the filter body is not limited to the structure including the first and second filter elements 6 and 8.

Fig. 2 shows a transverse cross-section of another embodiment of an article 1. The article 1 is provided with a third filter element 24 in an adjacent position on the opposite side of the fragrance element 2 from the tubular element 4. The third filter element 24 is formed by filling the same filter material 14 as the first and second filter elements 6, 8 or different filter material from the first and second filter elements 6, 8. The third filter element 24 is located at or in contact with the fragrance raw material 10 of the fragrance element 2 and is connected to the fragrance element 2 by means of the sheet paper 20.

When the heater 12 is inserted into the flavor element 2 through the third filter element 24, the third filter element 24 suppresses the flavor raw material 10 from being scattered from the flavor element 2 toward the root side of the heater 12. That is, the third filter element 24 functions as a support section for supporting the fragrance raw material 10 filled in the fragrance element 2 so as not to be scattered toward the heater 12 side in the article 1. This can prevent the root periphery of the heater 12 of the device from being contaminated by the dropped flavor raw material 10.

The tubular element 4 is arranged adjacent to the fragrance element 2 on the opposite side to the tip side of the article 1, forming an air flow path in the article 1. The tubular element 4 includes a hollow paper tube 26 having a cylindrical shape and a paper liner 28 disposed in the paper tube 26 in the axial direction X of the paper tube 26.

< tubular element >)

The tubular element 4 of the article 1 will be described in detail below with reference to fig. 3 to 11. Fig. 3 shows a longitudinal section through the tubular element 4. The liner 28 is formed by bending a single layer of roll paper in an S-shape in the direction of the inner diameter d of the paper tube 26, that is, in the tube diameter direction Y, and the cross section of the liner 28 in the tube diameter direction Y, that is, the longitudinal section of the liner 28 has an S-shape.

The liner 28 has a paper thickness of 0.05mm to 1mm, preferably 0.08mm to 0.5mm, more preferably 0.1mm to 0.15mm, and has a grammage of 80gsm (grams per square meter) to 120 gsm. The paper tube 26 is formed of a double-layered roll paper in which the inner roll paper 30 and the outer roll paper 32 are overlapped and bonded via the bonding portion 34. The liner 28 may be formed of a double-layered roll paper.

The tubular member 4 cools and aerosolizes the flavor component volatilized in the flavor element 2 by the heat of the heater 12. The volatilized flavor component is brought into contact with the surface of the liner 28 in the space secured in the paper tube 26, whereby the flavor component is efficiently cooled and aerosolized. And, the liner 28 is rapidly heated by the heater 12 adjacent to the liner 28. Therefore, when a flavor, which is one of the additives, is adsorbed to the liner 28, the flavor component volatilized from the liner 28 is efficiently cooled in the space secured in the paper tube 26 to become aerosol.

The total of the cross-sectional lengths of the inner liners 28 in the pipe diameter direction Y of the paper pipe 26 is larger than the inner diameter d of the paper pipe 26. More preferably, the total of the cross-sectional lengths of the inner liners 28 in the pipe diameter direction Y of the paper pipe 26 is twice or more the inner diameter d of the paper pipe 26. As a result, the surface area of the liner 28 increases, and therefore, the cooling and aerosolization of the flavor component proceeds more efficiently. Thus, in the article 1, the tubular element 4 acts as a cooling section that immediately cools and aerosolizes the flavor element 2 or the flavor component volatilized at the liner 28.

The tubular element 4 functions as a cooling section to promote aerosolization of the flavour ingredient before reaching the first and second filter elements 6, 8. Therefore, the flavor component before aerosol formation is suppressed from being adsorbed to the fibers of the first and second filter elements 6 and 8 and filtered. Therefore, in the non-combustion heating type article 1, even when the heating temperature of the fragrance element 2 is relatively low, the amount of fragrance components filtered by the first and second filter elements 6 and 8 can be reduced, and the fragrance components of the fragrance element 2 can be supplied to the user without being reduced as much as possible.

The tubular element 4 adjacent to the fragrance element 2 is provided with a lining 28, whereby the lining 28 is positioned at or in contact with the fragrance raw material 10 of the fragrance element 2. When the heater 12 is inserted into the flavor element 2, the liner 28 suppresses the flavor material 10 from being scattered from the flavor element 2 toward the tubular element 4. That is, in the article 1, the tubular element 4 functions as a support section that supports so that the flavor raw material 10 filled in the flavor element 2 does not fall off.

Additives are adsorbed on the liner 28. The additive includes, for example, a flavor component, activated carbon, an aerosol extender, and the like. Since the liner 28 is made of paper, the adsorption area and adsorption area of the additive in the liner 28 can be easily changed as compared with the case where the fragrance raw material 10 of the fragrance element 2 adsorbs the additive. Therefore, the adsorption amount of the additive and the release amount of the component of the additive can be easily adjusted, and the delivery amount of the component of the additive to the user can be easily adjusted. That is, in the article 1, the tubular element 4 functions as a fragrance component delivery section that can easily control the delivery of the additive to a user, for example fragrance component delivery.

Both ends of the liner 28 in the pipe diameter direction Y are bonded to the inner peripheral surface 26a of the paper tube 26 by bonding portions 36. The adhesive portion 36 is formed by applying and curing adhesive over the width of about 1mm to 2mm at both ends of the liner 28 in the axial direction X of the liner 28. Thereby, the liner 28 is fixed to the paper tube 26, and thus the liner 28 is prevented from falling off, the buckling strength of the tubular element 4 is enhanced, and the function as a support section of the tubular element 4 is enhanced. The adhesive portion 36 may be formed only at one end portion in the pipe diameter direction Y of the liner 28.

Fig. 4 shows a cross-sectional view of the paper tube 26 when it is stretched in the tube diameter direction Y. The inner roll paper 30 and the outer roll paper 32 constitute a double-layered roll paper 27. The inner roll paper 30 and the outer roll paper 32 have a band shape having substantially the same width in the developed width direction Z, for example, having the same range of paper thickness and grammage as the liner 28.

The inner roll paper 30 and the outer roll paper 32 are arranged so as to be offset from each other in the width direction Z, and an overlapping portion 38 is formed where an inner peripheral surface 32a of the outer roll paper 32 in the state of the paper tube 26 and an outer peripheral surface 30a of the inner roll paper 30 in the state of the paper tube partially overlap each other.

The inner peripheral edge portion 32b, which is a region other than the overlapping portion 38 of the inner peripheral surface 32a of the outer roll paper 32, is coated with glue. The seam-bonding portion 40 (see fig. 3) is formed by overlapping the inner peripheral edge portion 32b coated with the glue with the outer peripheral edge portion 30b which is an area other than the overlapping portion 38 of the outer peripheral surface 30a of the inner roll paper 30, and curing the glue.

In this way, the inner roll paper 30 and the outer roll paper 32 are arranged so as to be displaced in the width direction Z, and the double-layered roll paper 27 having the overlapping portion 38, the inner peripheral edge portion 32b, and the outer peripheral edge portion 30b formed thereon is bent and bonded by the seam bonding portion 40. As a result, as shown in fig. 3, the paper tube 26 is formed by adhering the inner roll paper 30 and the outer roll paper 32 to each other at the joint adhering portion 40 without irregularities.

Therefore, the outer peripheral surface 26b of the paper tube 26 is a smooth surface free from irregularities, and the quality of the tubular element 4 is improved. Further, since the paper tube 26 is formed of the double-layer roll paper 27, buckling strength of the tubular member 4 is enhanced and the function of the tubular member 4 as a supporting section is enhanced as compared with the case of being formed of a single-layer roll paper.

Fig. 5 shows a longitudinal section through the tubular element 4 of the further embodiment of fig. 3. When the width of the liner 28 in the pipe diameter direction Y (width direction Z) is formed to be large, as shown in fig. 5, the adhesive portion 36 may be formed not at the end of the liner 28 but in the vicinity of the S-shaped bent portion where the liner 28 is formed. That is, the glue may be applied to the portion of the liner 28 that can contact the inner peripheral surface 26a of the paper tube 26 in the axial direction X of the liner 28.

Fig. 6 shows a longitudinal section through the tubular element 4 of the further embodiment of fig. 3, and fig. 7 shows a section through the paper tube 26 of fig. 6 when it is deployed in the tube diameter direction Y. As shown in fig. 6, the paper tube 26 may also be formed of a single layer of roll paper 29. As shown in fig. 7, the single-layer roll paper 29 is formed with the overlapped portion 38 and the seam-bonded portion 40 by overlapping the adhesive-coated inner peripheral edge portion 29a with the adhesive-uncoated outer peripheral edge portion 29b, as shown in fig. 6. Even if a step occurs at the seam-bonded portion 40, at least the liner 28 is fixed to the paper tube 26. Therefore, the liner 28 can be prevented from falling off, and the buckling strength of the tubular element 4 is reinforced, and the function of the tubular element 4 as a support section is reinforced.

Fig. 8 to 12 schematically show a longitudinal section through a tubular element 4 having a lining 28 of a different form to that shown in fig. 3. Each of the drawings schematically shows an embodiment in which the paper tube 26 is formed of a single layer roll paper. Fig. 8 shows a tubular element 4 with a lining 28 having a zigzag shape in longitudinal section. The zigzag shape of the liner 28 is formed to have substantially the same width in the pipe diameter direction Y, and the zigzag-shaped ridge 28a does not contact the inner peripheral surface 26a of the paper tube 26.

Fig. 9 shows a longitudinal section through a tubular element 4 with a lining 28 in the shape of a serration in another form. The liner 28 extends to a position where all the ridges 28a forming a zigzag shape contact or can contact the inner peripheral surface 26a of the paper tube 26. Fig. 10 shows a longitudinal section through a tubular element 4 with a lining 28 in the shape of a serration in another form.

The adjoining liner portions of the liner 28 at the center of the zigzag shape contact each other. The other lining portions are spread in a fan shape along the pipe diameter direction Y with the contact portion between the lining portions as the center, and the ridge portion 28a formed by the lining portion at the center and the spread lining portion extends to a position where the lining portion contacts or can contact the inner peripheral surface 26a of the paper tube 26.

Fig. 11 shows a longitudinal section through a tubular element 4 with a liner 28 having a star-shaped longitudinal section. All the projecting strips 28a of the liner 28 forming a star shape are in contact with or can be in contact with the inner peripheral surface 26a of the paper tube 26. Fig. 12 shows a longitudinal section through a tubular element with a liner 28 consisting of three separate liners 28A, 28B, 28C with circular longitudinal sections. The inner liners 28A, 28B, 28C are separated from each other, but each is in contact with or can be in contact with the inner peripheral surface 26a of the paper tube 26.

As in the case of the configuration shown in fig. 3, the inner liner 28 in any one of fig. 8 to 12 has a total length of the cross sections of the inner liner 28 in the pipe diameter direction Y of the paper pipe 26 larger than the inner diameter d of the paper pipe 26, and more preferably, is larger than or equal to twice the inner diameter d of the paper pipe 26. Therefore, even in the case of the liner 28 shown in fig. 8 to 12, the same operational effects as those of the S-shaped liner 28 described above can be achieved.

Apparatus and method for manufacturing tubular element

Hereinafter, a manufacturing apparatus 50 for the tubular element 4 and a manufacturing method for the tubular element 4 using the manufacturing apparatus 50 will be described with reference to fig. 13 and 14. Fig. 13 is a schematic view of the apparatus 50 for manufacturing the tubular element 4, and fig. 14 is a flowchart for explaining a method for manufacturing the tubular element 4.

The manufacturing apparatus 50 includes a first roll paper supply portion 52, a first roll paper cutting portion 54, a lateral conveyance portion 56, a glue application portion 58, a misalignment portion 60, a heating portion 62, a tube forming portion 64, a second roll paper supply portion 66, a second roll paper cutting portion 68, a liner forming portion 70, a cutting portion 72, and the like.

When the production of the tubular member 4 is started, in the first roll paper supply portion 52, the first roll paper 74 is pulled out from a bobbin, not shown, on which a roll paper is provided. The first roll paper 74 is guided by the rollers 76 and conveyed on the first conveyance path 78 (S1: a first roll paper supply step). Next, in the first roll paper cutting portion 54, the first roll paper 74 is cut into the strip-shaped inner roll paper 30 and outer roll paper 32 throughout the longitudinal direction (S2: a first roll paper cutting step).

Next, in the lateral conveyance section 56, the cut inner roll paper 30 and outer roll paper 32 are separated from each other and conveyed to the first conveyance path 78a and the first conveyance path 78b branched from the first conveyance path 78, respectively (S3: lateral conveyance step). Next, in the glue application portion 58, glue is applied to the area of the overlapped portion 38 and the inner peripheral edge portion 32b of the outer roll paper 32 (S4: glue application step).

Next, the inner roll paper 30 and the outer roll paper 32 meet on a pair of tension rollers 80, and are conveyed to the first conveying path 78 where they meet again. Next, in the offset position portion 60, the inner roll paper 30 is offset from the outer roll paper 32 in the width direction intersecting the conveyance direction thereof (S5: offset position step). The inner roll paper 30 and the outer roll paper 32 overlap each other in a state of being shifted from each other to form an overlapping portion 38.

Next, in the heating portion 62, the glue applied to the overlapped portion 38 is cured by heat of a heater, thereby forming the bonded portion 34 (S6: heating step). In order to reliably solidify the paste, a cooling step may be performed by a cooling section, not shown, after passing through the heating section 62. Further, the heating portion 62 or the cooling portion may not be used as long as the curing of the paste is reliably performed.

The inner roll paper 30 and the outer roll paper 32 are formed into a flat double-layered roll paper 27 in which the overlapped portion 38 is bonded at the bonding portion 34, and the double-layered roll paper 27 is conveyed to the pipe forming portion 64. The manufacturing apparatus 50 is also provided with a seam gluing portion 82. A seam gluing portion 82 is provided between the heating portion 62 and the tube forming portion 64. The gluing of the inner peripheral portion 32b may also be performed not in the gluing portion 58 but in the seam gluing portion 82.

When the manufacture of the tubular element 4 is started, the following steps S10 to S12 are performed in parallel with the above-mentioned steps S1 to S6. First, in the second roll paper supply portion 66, the second roll paper 88 is pulled out from a bobbin, not shown, on which a roll paper is provided. The second roll paper 88 is guided by the rollers 76 and conveyed on the second conveyance path 90 (S10: second roll paper supply step).

Next, in the second roll paper cutting portion 68, the second roll paper 88 is cut into a band-shaped roll paper 92 in a band-shaped manner over the longitudinal direction (S11: second roll paper cutting step). In the second roll paper cutting step, the second roll paper 66 is cut into a strip-shaped roll paper 92 having a total cross-sectional length in the pipe diameter direction Y of the paper pipe 26 larger than the inner diameter d of the paper pipe 26, and more preferably, into a strip-shaped roll paper 92 having a total cross-sectional length equal to or larger than twice the inner diameter d of the paper pipe 26.

Next, in the lining forming section 70, the strip-shaped roll paper 92 is continuously formed into the lining 28 having an S-shaped longitudinal section throughout the longitudinal direction by applying frictional force to both end edges in the pipe diameter direction Y of the strip-shaped roll paper 92 (S12: lining forming step). In more detail, the liner forming portion 70 is provided with a rotor cylinder 94 shown in fig. 15.

Fig. 15 shows a transverse cross-sectional view of the rotor barrel 94. The rotor cylinder 94 is rotatably supported by a support member 96 via a bearing 98, and receives the roll paper 92 in a belt shape while rotating. The rotor cylinder 94 has: an inlet portion 94a that receives the roll paper 92 in a band shape; an outlet portion 94b that discharges the formed liner 28 toward the tube forming portion 64; an inner peripheral surface 94c gradually reduces in diameter from the inlet portion 94a toward the outlet portion 94 b.

In the liner forming portion 70, when receiving the roll paper 92 in a band shape, both end edges of the roll paper 92 in a band shape are in contact with the inner peripheral surface 94c of the inlet portion 94 a. Thereby, frictional force acts on both end edges of the strip roll paper 92, and the strip roll paper 92 is bent in an S-shape to form a bent portion, and the liner 28 having an S-shaped vertical section is formed.

The inlet 94a has an opening edge 94D, and the opening edge 94D has an opening diameter D of 30% to 80% of the paper width of the roll paper 92. The opening edge 94d is a region included in the inner peripheral surface 94 c. Accordingly, both end edges of the roll paper 92 are brought into contact with the opening edge 94d at the initial stage of receiving the roll paper 92, and the frictional force can be reliably applied to the both end edges. Therefore, the roll paper 92 can be reliably formed into the S-shaped liner 28.

The inner peripheral surface 94c of the rotor tube 94 is surface-treated to have an arithmetic average roughness Ra of 5 μm to 30 μm. Accordingly, when both end edges of the roll paper 92 are in contact with the inner peripheral surface 94c (including the opening edge 94 d) of the inlet 94a, friction force can be more effectively applied to both end edges. Therefore, the roll paper 92 can be reliably formed into the S-shaped liner 28.

The liner forming portion 70 is provided with an adder 100 that adds an additive to the liner 28. The additives may include flavor components, activated carbon, aerosol extenders, and the like. The additive applicator 100 applies the additive to the liner 28 in a predetermined adsorption area and adsorption area, thereby adsorbing the additive to the liner 28 (P1: adding step). The additive may be added to the roll paper 92 or the second roll paper 88 in advance before forming the liner 28.

In the pipe forming portion 64, the second conveying path 90 meets the first conveying path 78 for receiving the liner 28 formed in the liner forming portion 70. Next, the tube forming portion 64 continuously wraps the liner 28 with the double-layered roll paper 27 formed by overlapping the first roll paper 74, and continuously forms the double-layered roll paper 27 into the hollow paper tube 26 in a cylindrical shape. Thereby, the tubular rod 102 in which the liner 28 is disposed in the paper tube 26 throughout the axial direction X of the paper tube 26 is formed (S7: tube forming step).

Specifically, the tube forming portion 64 is provided with a forming table 104. The forming table 104 is disposed along the first conveying path 78, and an upstream portion of the endless fitting belt 106 is disposed on the forming table 104. The return path portion of the accessory belt 106 separated from the forming table 104 is guided by the rollers 76 and wound around the drive roller 108. The driving roller 108 is rotated by a driving force of an electric motor, not shown. The rotation of the drive roller 108 causes the outbound portion of the accessory belt 106 to travel in the first conveyance direction 78.

The double-layered roll paper 27 is guided over the forward path portion of the accessory belt 106 to coincide with the accessory belt 106. A pressing member 110 is provided above the start end of the forming table 104. The pressing member 110 presses the double-layered roll paper 27 against the bottom of the forming groove formed in the forming table 104. Thereby, the double-layered roll paper 27 integrally advances with the accessory belt 106 by friction with the accessory belt 106, and the double-layered roll paper 27 is continuously formed into a U-shape, and finally formed into the paper tube 26 wrapping the liner 28.

The tube forming portion 64 is provided with an applicator 112 for applying glue to the liner 28. The applicator 112 applies glue to both ends of the inner liner 28 in the pipe diameter direction Y at least before forming the tubular rod 102 (P2: glue application step). The applicator 112 may apply glue to only one end portion of the inner liner 28 in the pipe diameter direction Y. The applicator 112 may be disposed in the liner forming portion 70 to apply a paste to the liner 28 during the formation of the liner 28. The glue is not limited to both ends or one end of the liner 28, and may be applied over the axial direction X of the liner 28 at a portion of the liner 28 that can be in contact with the inner peripheral surface 26a of the paper tube 26.

The tube forming portion 64 is provided with a heater 114 for heating the glue applied to the liner 28. The heater 114 heats the glue applied to the liner 28 to cure the glue, thereby forming the bonded portion 34 and the joint bonded portion 40 (P3: heating step). In order to reliably cure the paste, the paste may be passed through a cooler, not shown, after passing through the heater 114. Further, the heater 114 or the cooler may not be provided as long as the curing of the paste is reliably performed.

In this way, the inner liner 28 is bonded to the inner peripheral surface 26a of the paper tube 26, thereby forming the tubular rod 102 in which the paper tube 26 and the inner liner 28 are integrated. Next, in the cutting portion 72, the tubular rod 102 is cut to a predetermined length, and the tubular element 4 is formed (S8: cutting step). Thereby, the manufacture of the tubular element 4 is completed.

< test of support section function >

Fig. 16 is a graph showing the proportion of the fragrance raw material 10 scattered from the fragrance element 2. In example 1, an article 1 was used in which a flavor element 2 was connected to a tubular element 4 comprising a paper tube 26 and a liner 28. In comparative example 1, an article 1 in which a flavor element 2 and a tubular element 4 composed only of a paper tube 26 were connected was used. The grammage of the rolls used in the tubular members 4 of example 1 and comparative example 1 was 82gsm. The amount of the fragrance raw material 10 filled in the fragrance element 2 of example 1 and comparative example 1 was 260mg or more.

Fig. 17 shows a schematic diagram of a test apparatus for obtaining the results of fig. 16. The test apparatus was equipped with a pin-shaped heater 12, the diameter D1 of the heater 12 was 2mm, and the length L of the heater 12 was 18mm. In this test, when the flavor element 2 of example 1 and comparative example 1 was inserted into the heater 12 in the arrow direction, the proportion (sprinkling proportion) of the flavor material 10 sprinkled from the flavor element 2 among the flavor materials 10 filled in the flavor element 2 was measured using the test apparatus.

As shown in fig. 16, the sprinkling rate of example 1 was about 4%, and the sprinkling rate of comparative example 1 was about 28%. The tubular element 4 with the liner 28 of example 1 had a function of reinforcing the support section for supporting the fragrance raw material 10 so as not to be scattered to the tubular element 4 side to about 7 times as compared with the tubular element 4 without the liner 28 of comparative example 1. From these results, it is shown that the tubular element 4 having the liner 28 effectively functions as a support section for suppressing the scattering of the fragrance raw material 10 when the heater 12 is inserted into the fragrance element 2.

< test of buckling Strength of tubular element >

The graph of fig. 18 shows the maximum load until buckling when the tubular element 4 is pressed in the axial direction thereof. In example 1, the tubular element 4 composed of the paper tube 26 and the liner 28 was used (the liner 28 did not have the bonding portion 36). In example 2, the tubular element 4 composed of the paper tube 26 and the liner 28 (the liner 28 has the bonding portion 36) was used. In comparative example 1, the tubular member 4 (single-layer roll paper) composed of only the paper tube 26 was used. In comparative example 2, the tubular member 4 (double-layer roll paper) composed of only the paper tube 26 was used. The roll paper used in the tubular members 4 of each example and each comparative example had a caliper of 0.1mm to 0.13mm and a grammage of 82gsm to 100gsm. The same applies to the subsequent tests.

Fig. 19 is a schematic view of a test apparatus for obtaining the result of fig. 18. The test device is provided with a cylindrical push rod 116, the diameter D2 of the push rod 116 being 15mm larger than the diameter of the tubular element 4. In this test, the push rod 116 was lowered in the arrow direction by using this test apparatus, and one end of the tubular element 4 standing in the axis direction X was pressed, and the maximum load until the tubular element 4 buckled was measured. Thereby, the buckling strength of the entire tubular element 4 was measured. The descent speed of the push rod 116 was 20mm/min, and the descent distance of the push rod 116 from one end of the tubular element 4 was 2mm.

As shown in fig. 18, the maximum load of example 1 was about 68N, and the maximum load of example 2 was about 61N. On the other hand, the maximum load of comparative example 1 was about 23N, and the maximum load of comparative example 2 was about 38N. As is clear from the results of examples 1 and 2, the buckling strength of the tubular element 4 was slightly higher than that when the liner 28 was not bonded to the inner peripheral surface 26a of the paper tube 26. This is because if the liner 28 is not bonded to the paper tube 26, the displacement of the liner 28 relative to the paper tube 26 is allowed at the time of pressing, and the paper tube 26 and the liner 28 generate reaction forces against the pressing force, respectively, and as a result, the pressing force is dispersed.

As is clear from the results of comparative examples 1 and 2, the buckling strength of the tubular element 4 was strengthened to about 1.7 times by the paper tube 26 consisting of the double-layered roll paper 27 formed by overlapping the inner and outer roll papers 30 and 32. The tubular element 4 with the liner 28 of example 1 was reinforced to about 3 times the buckling strength of the tubular element 4 as compared with the tubular element 4 composed of only the paper tube 26 of comparative example 1. Further, the tubular element 4 with the liner 28 of example 1 was reinforced to about 1.8 times the buckling strength of the tubular element 4, compared with the tubular element 4 of comparative example 2 which was constituted only by the paper tube 26 of the double-layer roll paper 27.

There is a concern that buckling of the article 1 occurs in the tubular element 4 due to the insertion resistance when inserting the fragrance element 2 into the heater 12 of the device. However, according to the above results, it is shown that the buckling strength of the tubular element 4 is greatly enhanced by providing the liner 28 having the bent portion in the tubular element 4. And shows that the buckling strength of the tubular member 4 is further enhanced by making the paper tube 26 of the double-layer roll paper 27.

< buckling Strength test of liner >)

The graph of fig. 20 shows the maximum load until buckling when the liner 28 is pressed in the axial direction X. In example 1, the tubular member 4 composed of the paper tube 26 and the liner 28 without the bonding portion 36 was used. In example 2, the tubular element 4 composed of the paper tube 26 and the liner 28 having the adhesive portion 36 was used. In comparative example 1, a tubular element 4 composed of a paper tube 26 and an unbent strip-shaped liner 28 was used. In example 3, a tubular member 4 composed of a paper tube 26 and an inner liner 28 composed of double-layer roll paper was used.

Fig. 21 is a schematic view of a test apparatus for obtaining the results of fig. 20. The test device comprises a cylindrical push rod 116, the diameter D3 of the push rod 116 being 5mm smaller than the diameter of the tubular element 4. In this test, the push rod 116 was lowered in the arrow direction by using this test apparatus, and one end of the tubular element 4 standing in the axis direction X was pressed, and the maximum load (buckling strength) until buckling of the tubular element 4 was measured. The descent speed of the push rod 116 was 20mm/min, and the descent distance of the push rod 116 from one end of the tubular element 4 was 2mm.

As shown in fig. 20, the maximum load of example 1 was about 4.6N, the maximum load of example 2 was about 4.9N, and the maximum load of example 3 was about 8.2N. On the other hand, the maximum load of comparative example 1 was about 0.8N. As is clear from the results of examples 1 and 2, the buckling strength of the liner 28 increases when the liner 28 is bonded to the inner peripheral surface 26a of the paper tube 26. This is because, if the liner 28 is bonded to the paper tube 26, the pressing force applied to the liner 28 is dispersed to the paper tube 26.

As is clear from the results of examples 1 and 2 and comparative example 1, the buckling strength of the liner 28 was strengthened to about 5.7 times to about 6.1 times by forming the liner 28 in an S-shape, as compared with the case where the liner 28 had a strip-like shape without the bent portion. The buckling strength of the liner 28 composed of the double-layered roll paper 27 of example 3 was reinforced to about 1.8 times as high as that of the liner 28 composed of the single-layered roll paper of example 1.

There is a concern that the article 1 will buckle in the inner liner 28 of the tubular element 4 due to the insertion resistance when inserting the fragrance element 2 into the heater 12 of the device. However, according to the above results, it is shown that the buckling strength of the liner 28 is greatly enhanced by providing the liner 28 having the bent portion on the tubular element 4. It has been shown that the buckling strength of the liner 28 is further enhanced by forming the adhesive portion 36 on the liner 28 and forming the liner 28 from a double-layer roll paper.

< temperature measurement test of article >

Fig. 22 is a schematic view of a test apparatus for the temperature measurement test of the article 1, and fig. 23 is a graph showing time-series temperature changes at measurement points P1, P2, and P3 in fig. 22. The test apparatus heats the peripheral surface of the flavor element 2 of the article 1 shown in fig. 1 by the heater 118, and measures the temperatures of the measurement point P1 located near the flavor element 2 in the tubular element 4, the measurement point P2 located at the center in the axial direction of the tubular element 4, and the measurement point P3 located near the first filter element 6 in the tubular element 4, respectively.

As shown in fig. 23, after about 40 seconds from the start of the test, the measurement point P1 was about 145 ℃, the measurement point P2 was about 90 ℃, and the measurement point P3 was about 50 ℃. About 180 seconds after the start of the test, the measurement point P1 was about 145 ℃, the measurement point P2 was about 65 ℃, and the measurement point P3 was about 42 ℃. About 240 seconds after the start of the test, the measurement point P1 was about 140 ℃, the measurement point P2 was about 60 ℃, and the measurement point P3 was about 40 ℃.

Since the measurement point P1 is closest to the heater 118, the initial temperature rises sharply as compared with the measurement points P2 and P3, and remains high in the whole for a long period of time. The temperature at each of the measurement points P1 to P3 fluctuates, but the fluctuation at the measurement point P1 is smoother than the fluctuation at the measurement points P2 and P3. From these results, it is shown that, when the additive is adsorbed to the liner 28 of the tubular element 4, if the adsorption region of the additive is formed at a position as close as possible to the heater 118, that is, in the vicinity of the flavor element 2 of the liner 28 adjacent to the flavor element 2, since the adsorption region is maintained at a relatively high temperature from the initial stage, vaporization and thus aerosolization of the additive can be continuously promoted.

< fragrance delivery test >)

Fig. 24 is a transverse cross-sectional view of each article 1 used in the comparative examples and examples of the fragrance component delivery test. In this test, the peripheral surfaces of the flavor elements 2 of the respective articles 1 of different shapes were heated by the heater 118, the end surfaces of the first filter element 6 or the second filter element 8 were sucked (sucked), and the amount of the flavor component transferred from the end surfaces to the outside of the articles 1 was measured.

The article 1 of comparative example 1 is composed of a flavor element 2 (tobacco rod) containing a flavor component, a tubular element 4 composed of only a paper tube 26, a first filter element 6, and a second filter element 8 having a flavor component adsorbed thereto. The article 1 of comparative example 2 comprises the flavor element 2 (tobacco rod), the tubular element 4 consisting of only the paper tube 26, the first filter element 6, and the second filter element 8 having flavor components adsorbed thereto.

The article 1 of comparative example 3 is composed of the flavor element 2 (tobacco rod), the tubular element 4 composed of only the paper tube 26, and the first filter element 6 having flavor components adsorbed thereto. The article 1 of example 1 is composed of a flavor element 2 (tobacco rod), a tubular element 4 composed of a paper tube 26 and a liner 28 folded into a shape and having flavor components adsorbed thereto, and a first filter element 6 having flavor components adsorbed thereto. The article 1 of example 2 is composed of a flavor element 2 (tobacco rod), a tubular element 4 composed of a paper tube 26 and an inner liner 28 having an S shape and having flavor components adsorbed thereon, and a first filter element 6 having flavor components adsorbed thereon. Menthol is used as the adsorbed flavor component.

Fig. 25 is a graph showing the amounts of fragrance components delivered for each number of puffs in each article 1 of fig. 24 in a time chart. The broken line at the upper part of the graph shown in fig. 25 indicates the temperature of the heater 118, and the vertical axis at the right side of the graph indicates the temperature scale. Article 1 of example 2 delivered a maximum of about 0.57mg/stk of fragrance composition in the 1 st puff. The "stk" constituting a unit means one stroke of the suction operation of the article 1, that is, one suction.

The article 1 of example 2 was configured to deliver at least 0.1mg/stk or more of the flavor component from the initial stage of the suction to the final stage of the suction. In the article 1 of example 1, the amount of fragrance component to be delivered in the 1 st suction was slightly smaller than in the article 1 of example 2, but the change in the amount of fragrance component to be delivered with the increase in the number of suction was substantially the same as in the article 1 of example 2.

Fig. 26 shows a schematic view of the tubular element 4 of example 2. In example 2, as shown in the figure, when the flavor component 120 is adsorbed to the vicinity of the flavor element 2 of the liner 28, the heat of the heater 118 that heats the flavor element 2 is easily transferred to the flavor component 120. Therefore, as shown in fig. 26, the flavor component 120 volatilizes into the aerosol 122 at an early stage, and a large amount of the flavor component 120 can be supplied to the user at an early stage of suction.

Further, since the liner 28 of example 2 is simply S-shaped, a larger space is secured in the paper tube 26 than in the folded-in liner 28 of example 1, and the air permeability of the paper tube 26 is improved. Since the air permeability of the paper tube 26 is improved, the volatilization and aerosolization of the volatilized flavor component 120 are promoted, and thus, example 2 is slightly more than example 1 with respect to the flavor component delivery amount of the 1 st suction.

Fig. 27 shows a schematic view of the fragrance element 2 of comparative example 1. The flavor element 2 of comparative example 1 was in a compact state in which the tobacco raw material 124 filled around the flavor component 120 was present, and the air permeability in the flavor element 2 was reduced. In comparative example 1, volatilization and aerosolization of flavor component 120 were delayed in the initial stage of the inhalation due to the decrease in air permeability, and the delivery amount of the flavor component at the 1 st inhalation was about 60% of that of example 2, about 0.35mg/stk.

However, in comparative example 1, as the time passes and the number of times of suction increases, the temperature of the fragrance element 2 gradually increases by heating with the heater 118, and volatilization and aerosol formation of the fragrance component 120 in the fragrance element 2 gradually progress. Also, evaporation and aerosolization of the flavor components adsorbed at the second filter element 8 are promoted due to the heated air flow. Therefore, the amount of fragrance component delivered at about the 8 th to 11 th puffs was larger than in examples 1 and 2.

In comparative examples 2 and 3, the flavor component was contained only in the first filter element 6 and the second filter element 8 separated from the flavor element 2. Therefore, it takes time to heat the air flow by the heater 118. Further, the first filter element 6 and the second filter element 8 have a disadvantage in that the flavor component is filtered. Therefore, in the case of comparative examples 2 and 3, the amount of volatilization of the flavor component is inherently small, and even when the time passes or the number of times of suction increases, the amount of delivery of the flavor component is small.

From these results, the flavor component is preferably added and adsorbed to the liner 28 of the tubular element 4 adjacent to the flavor element 2, as compared with the flavor element 2 which is a direct heating target of the heater 118. Further, the liner 28 of the tubular element 4 adjacent to the flavor element 2 is preferably added and adsorbed to the first filter element 6 or the second filter element 8 separated from the flavor element 2. This allows more and more efficient supply of the flavor component to the user.

As described above, the article 1 according to the embodiment includes the non-combustion heating flavor element 2 and the tubular element 4 forming the airflow path, and the tubular element 4 includes the hollow paper tube 26 having a cylindrical shape and the paper liner 28 disposed in the paper tube 26 in the axial direction X of the paper tube 26, and the total cross-sectional length of the liner 28 is larger than the inner diameter d of the paper tube 26.

Thus, the fragrance component volatilized in the fragrance element 2 can be supplied to the user without being reduced as much as possible by the liner 28 having no filtering function. Further, by making the total of the cross-sectional lengths of the liner 28 larger than the inner diameter d of the paper tube 26, a curved portion is formed in the liner 28, and a large surface area of the liner 28 can be ensured. Thus, the cooling section function of immediately cooling and aerosolizing the flavor component volatilized at the flavor element 2 on the surface of the liner 28 can be realized.

In addition, when the tubular element 4 is disposed adjacent to the flavor element 2, the function of a support section for suppressing scattering of the flavor raw material 10 filled in the flavor element 2 by the liner 28 can be realized. Further, additives, specifically, flavor components, activated carbon, aerosol extenders, and the like may be adsorbed to the liner 28. In this case, the adsorption of the additive to the liner 28 is easy, and by changing the adsorption area and adsorption area of the additive in the liner 28, it is possible to realize that the delivery of the additive to the user, for example, the fragrance component delivery section function of fragrance component delivery can be easily controlled.

The inner peripheral surface 26a of the paper tube 26 is bonded to a portion of the liner 28 that can contact the inner peripheral surface 26a of the paper tube 26 in the axial direction X of the liner 28. Thereby, the liner 28 is fixed to the paper tube 26, and thus the falling-off of the liner 28 is prevented, and the buckling strength of the tubular element 4 is reinforced, and the function of the tubular element 4 as a support section is reinforced.

The liner 28 has a paper thickness of 0.05mm to 1mm, and the liner 28 has a grammage of 80gsm to 120gsm. Thereby strengthening the buckling strength of the liner 28, strengthening the function of the liner 28 and thus the tubular element 4 as a support section. The above-described caliper and grammage may be achieved by forming the liner 28 from a double-layer roll paper.

The total length of the cross sections of the liner 28 in the pipe diameter direction Y is equal to or greater than twice the inner diameter d of the paper pipe 26. This further increases the surface area of the liner 28, and thus can further enhance the functions of the cooling section, the support section, and the flavor component delivery section.

Further, since the cross section of the liner 28 in the pipe diameter direction Y is formed in a continuous S shape, the liner 28 can be easily manufactured because of its simple shape. Further, the air flow path in the paper tube 26 can be fully utilized as a space for evaporating and aerosolizing the flavor component and the like due to the simple shape, and the above-described various effects can be obtained.

The above description of the embodiments is completed, but the above embodiments are not limited thereto, and various modifications may be made without departing from the spirit and scope of the present invention. For example, in the lining forming step, the method of applying frictional force to both end edges of the roll paper 92 is not limited to the method using the rotor drum 94.

The constitution of the article 1 and the position of the tubular element 4 in the article 1 are not limited to the above embodiments. However, as described above, the tubular element 4 is preferably disposed at a position adjacent to the flavor element 2 to be heated. The article 1 is not necessarily limited to be provided with a filter element, and the flavor element 2 may not include a tobacco material. The shape of the liner 28 is not limited to the S shape and the illustrated shapes as long as the above conditions are satisfied.

Further, as is known from the results of the buckling strength test of < tubular element > and the buckling strength test of < lining >, when the buckling strength of the tubular element 4 is to be reinforced, the paper tube 26 of the tubular element 4 may be formed of the double-layer roll paper 27, and the lining 28 may be formed of the double-layer roll paper. As is known from the result of the fragrance component delivery test, the additive containing the fragrance component such as the fragrance agent is preferably added to and adsorbed on the liner 28 of the tubular element 4 adjacent to the fragrance element 2 to be heated. However, the tubular element 4 is not necessarily disposed adjacent to the flavor element 2, and may be disposed at a relatively close position.

As is evident from the results of the temperature measurement test of the article, in order to promote vaporization and aerosolization of the additive, the region where the additive is adsorbed to the liner 28 is preferably a location that is a heating target and is as close as possible to the high temperature of the flavor element 2—that is, one end of the liner 28 that can be in contact with the flavor element 2 side or the flavor element 2. However, the adsorption area and the adsorption area of the additive in the liner 28 are not limited thereto, and may be variously changed according to the specifications of the article 1.

Description of the reference numerals

1: a fragrance inhalation article; 2: a fragrance element; 4: a tubular element; 26: a paper tube; 26a: an inner peripheral surface; 28: a lining; d: an inner diameter; x: an axial direction; y: the pipe diameter direction.

Claims

1. A flavor inhalation article comprising a flavor element heated in a non-combustion manner and a tubular element forming an airflow path, characterized in that,

the tubular element is provided with:

a paper tube which is a hollow paper tube having a cylindrical shape; and

a liner made of paper and disposed in the paper tube in the axial direction of the paper tube;

the total of the cross-sectional lengths of the inner liners in the pipe diameter direction of the paper pipe is larger than the inner diameter of the paper pipe.

2. The flavor inhaling article according to claim 1,

the tubular element is configured to abut the scent element.

3. The flavor inhalant article according to claim 1 or 2,

additives are adsorbed on the liner.

4. A fragrance-absorbing article according to claim 1 to 3,

a portion of the liner that can be brought into contact with an inner peripheral surface of the paper tube is bonded to the inner peripheral surface of the paper tube in the axial direction of the liner.

5. The flavor inhalant article according to any one of claim 1 to 4,

the thickness of the paper of the lining is 0.05 mm-1 mm.

6. The flavor inhalant article according to any one of claim 1 to 5,

the liner has a grammage of 80gsm to 120gsm.

7. The flavor inhalant article according to any one of claim 1 to 6,

the total cross-sectional length of the liner in the pipe diameter direction is twice or more the inner diameter of the paper pipe.

8. The flavor inhalant article according to any one of claim 1 to 7,

the section of the lining in the pipe diameter direction is S-shaped.