Patent Application
20250127210
The present invention relates to a non-combustion heating type flavor inhalation article.
A flavor inhalation article includes a tipping paper that joins a tobacco rod and another member. Conventionally, tipping papers with various functions imparted have been proposed. For example, PTL 1 discloses a smoking article in which a tipping paper in the outermost layer is attachable/detachable. It is said that the attachable/detachable tipping paper can provide an appearance or a sensory change to the user. Further, PTL 2 discloses that a material or the like for imparting cushioning properties is wrapped two times around a mouthpiece.
A non-combustion heating type flavor inhalation article generates an aerosol when a tobacco rod is heated. At this time, a tipping paper wrapped around the tobacco rod is deteriorated by heating. As a result, the non-combustion heating type flavor inhalation article is torn or broken, and the handleability is impaired in some cases. In view of such circumstances, an object of the present invention is to provide a non-combustion heating type flavor inhalation article that is excellent in handleability after heating.
The inventors have found that the above-described problem can be solved by setting the maximum value of the weight of a tipping paper per unit area on a non-combustion heating type flavor inhalation article to a specific range.
A non-combustion heating type flavor inhalation article includes a wrapping material that joins a tobacco rod and an adjacent member adjacent to the tobacco rod. The wrapping material includes a tipping paper having a CD direction that is substantially parallel to a longitudinal direction of the article. A region X in which a total grammage in a radial direction of the wrapping material is 40 to 110 g/m2 is present on the article. The X occupies a region of 20% to 100% in a circumferential direction of the article.
In the non-combustion heating type flavor inhalation article according to aspect 1 or 2, the X occupies a region of 50% to 100% in the circumferential direction of the article.
In the non-combustion heating type flavor inhalation article according to aspect 1 or 2, the X is a region in which one sheet of the tipping paper is wrapped so as to overlap in a direction perpendicular to a circumferential surface.
In the non-combustion heating type flavor inhalation article according to aspect 3, a length in the circumferential direction of the tipping paper is 1.2 to 2.8 times a circumference of the non-combustion heating type flavor inhalation article.
In the non-combustion heating type flavor inhalation article according to any one of aspects 1 to 4, the tipping paper is uncoated paper, or coated paper including a base paper layer and one or more coating layers provided on the base paper layer.
In the non-combustion heating type flavor inhalation article according to aspect 1, 2, 4, or 5, the region X is constituted of the tipping paper and a reinforcing sheet disposed on an inner circumferential surface of the tipping paper.
In the non-combustion heating type flavor inhalation article according to any one of aspects 1 to 6, the tipping paper has a grammage of 55 g/m2 or less.
In the non-combustion heating type flavor inhalation article according to any one of aspects 1 to 7, a tensile strength in the CD direction of the tipping paper is 12 N/15 mm or more.
In the non-combustion heating type flavor inhalation article according to any one of aspects 1 to 8, the region X is present across a joint portion between the tobacco rod and the adjacent member in the longitudinal direction.
The present invention can provide a non-combustion heating type flavor inhalation article that is excellent in handleability after heating.
The present invention will be described in detail below. In the present invention, “X to Y” includes X and Y that are end values thereof.
A non-combustion heating type flavor inhalation article (hereinafter, also simply referred to as a “flavor inhalation article”) according to the present embodiment includes a wrapping material that joins a tobacco rod and an adjacent member adjacent to the tobacco rod, and has a region X in which a total grammage in a radial direction of the wrapping material is 40 to 110 g/m2 is present on the flavor inhalation article. The radial direction is a direction perpendicular to a circumferential surface. The cross section of the tobacco rod is preferably circular or elliptical, but may be non-circular such as polygonal or rounded polygonal. Even in a case where the cross-sectional shape of the tobacco rod is non-circular, the direction perpendicular to the circumferential surface is referred to as the radial direction for convenience. In the present embodiment, the wrapping material includes a tipping paper, and the tipping paper is wrapped so that a CD direction is substantially parallel to a longitudinal direction of the flavor inhalation article. The state being “substantially parallel” represents that the angle formed by the two directions is parallel or substantially parallel. For example, the angle may be 0° to 10°, or may be 0° to 5°. Generally, the strength in the CD direction of the tipping paper is not high, and hence the strength of a joint portion between the tobacco rod and the adjacent member is reduced. However, in the present embodiment, the region X is provided, and hence it is possible to impart sufficient strength to the joint portion.
The method of forming the region X is not limited. For example, the region X can be formed in such a way that one sheet of the wrapping material is wrapped so as to overlap in the direction perpendicular to the circumferential surface (first aspect). Alternatively, the region X can be formed by setting the grammage of a portion or the entirety of the wrapping material to 40 to 110 g/m2 (second aspect).
The presence position of the region X in the longitudinal direction of the flavor inhalation article is not limited. For example, the region X may be present over the entirety in the longitudinal direction. Alternatively, the region X may be formed in a portion in the longitudinal direction so as to extend across the joint portion. In this case, the region X of the wrapping is preferably a region of 25% or more from the joint portion toward another end of the tobacco rod, and more preferably the entire region of the tobacco rod. Similarly, the region X of the wrapping is preferably a region of 25% or more from the joint portion toward another end of the adjacent member, and more preferably the entire region of the adjacent member. Usually, the tobacco rod is disposed on the most upstream side, but may be desirably disposed. Downstream refers to a direction toward a mouthpiece end, and upstream refers to a direction opposite thereto.
A first aspect will be described with reference to
The length in the circumferential direction of the tipping paper is selected so as to achieve the occupancy rate of the region X. For example, the length in the circumferential direction of the tipping paper is preferably 1.2 to 2.8 times the circumference of the flavor inhalation article, and the upper limit thereof is more preferably 2.2 times or less. When the length in the circumferential direction is 1.2 times, the region X formed by the tipping paper being wrapped two times extends over a region of about 20% of the entire circumference of the non-combustion heating type flavor inhalation article. In this case, the occupancy rate is 20%. This aspect is also referred to as 1.2-time wrapping. When the length in the circumferential direction is 2.2 times, the region in which the tipping paper is wrapped two times extends over a region of 80% of the entire circumference of the non-combustion heating type flavor inhalation article, and the remaining region of 20% of the entire circumference is a region in which the tipping paper is wrapped three times. The region wrapped three times can be used as a glue margin. When the region wrapped two times and the region wrapped three times have a grammage of 40 to 110 g/m2, the occupancy rate of the region X is 100%.
The total grammage in the radial direction of the wrapping material in the region X (hereinafter, also simply referred to as a “grammage in the region X”) is 40 to 110 g/m2. If the grammage is less than the lower limit value, the strength of the flavor inhalation article is insufficient. In contrast, if the grammage exceeds the upper limit value, the production is difficult, and further, the thermal conductivity is reduced when the flavor inhalation article is heated from the outside.
The tipping paper is a paper that is wrapped around and joins a plurality of members. At this time, the CD direction of the tipping paper is substantially parallel to the longitudinal direction of the non-combustion heating type flavor inhalation article. The CD direction of the tipping paper is a direction perpendicular to a direction in which a paper material is conveyed in a papermaking process (MD direction). The tipping paper is preferably fixed with an adhesive. The adhesive is preferably applied to at least a terminal end in the circumferential direction of the tipping paper (see
As the tipping paper, paper usually used in the field can be used. The tipping paper may be uncoated paper or coated paper. The coated paper may be clear coated paper having a coating layer containing no pigment on base paper, or pigment coated paper having a pigment coating layer on base paper. From the viewpoint of forming the region X without impairing the workability during the wrapping, the grammage of the tipping paper in this aspect is preferably 55 g/m2 or less, and more preferably 53 g/m2 or less. The lower limit value of the grammage is preferably 20 g/m2 or more, and more preferably 30 g/m2 or more.
As described above, the strength in the CD direction of the tipping paper is generally lower than the strength in the MD direction. However, by providing the region X, it is possible to provide a non-combustion heating type flavor inhalation article having excellent handleability after heating. The tensile strength in the CD direction of the tipping paper is preferably 12 N/15 mm or more, and more preferably 13 N/15 mm or more.
A second aspect will be described with reference to
As the tipping paper, the tipping paper described in the first aspect can be used, but the grammage is in the range of 40 to 110 g/m2. The tipping paper may be uncoated paper, clear coated paper, or pigment coated paper having a pigment coating layer on base paper. In this case, the occupancy rate of the region X is 100%.
This aspect can be implemented by, for example, wrapping one time with a wrapping material in which a reinforcing sheet having a grammage of 50 g/m2 is bonded to a portion or the entirety of a tipping paper having a grammage of 30 g/m2. In this case, the occupancy rate of the region X is adjusted based on the length in the circumferential direction of the reinforcing sheet. The material of the reinforcing sheet is not limited, but is preferably paper or a polymer sheet from the viewpoint of the handleability and the like. The reinforcing sheet is preferably disposed inside the circumferential surface.
Hereinafter, each member will be described with reference to
The tobacco rod is a member having a substantially circular pillar shape for generating an inhaling flavor component contained in a tobacco material. The tobacco rod includes a tobacco material and a wrapping paper (wrapper) wrapped around the tobacco material. The shape of the tobacco material to be filled in the wrapping paper is not limited, and examples thereof include a sheet, a cut sheet obtained by cutting the sheet to have a width of 0.8 to 1.2 mm, and a cut piece cut to have a width of 0.8 to 1.2 mm. The sheet may be gathered, folded, or spirally formed without being cut, and filled in a wrapping paper to obtain a tobacco rod. Alternatively, the sheet may be cut into strips, and these strips may be filled into a wrapping paper in a concentric manner or in such a manner that the longitudinal direction of the strips is parallel to the longitudinal direction of the tobacco rod to obtain a tobacco rod.
The filling density of the tobacco material is not particularly limited, but is usually 250 mg/cm3 or more, and preferably 320 mg/cm3 or more, from the viewpoint of securing the characteristics of the non-combustion type flavor inhalation article and imparting a good smoke taste. Also, the upper limit thereof is usually 800 mg/cm3 or less, and preferably 600 mg/cm3 or less. The length of the tobacco rod 1 is not limited, but is preferably 15 to 25 mm. The diameter thereof is not limited, but is preferably 6 to 8 mm.
The tobacco material may generate vapor upon heating. The heating temperature is not limited, but is about 250° C. to 350° C. To promote generation of an aerosol, an aerosol source such as a polyol, e.g., glycerine, propylene glycol, 1,3-butanediol, etc., may be added to the tobacco material. The amount of the aerosol source to be added is preferably 5 to 50 wt %, and more preferably 10 to 30 wt %, relative to the dry weight of the tobacco material. In addition, a known flavoring agent and the like may be added to the tobacco material.
The adjacent member 3 is a member adjacent to the downstream side of the tobacco rod 1. The downstream refers to the direction toward the mouthpiece end. Examples of the adjacent member include a cooling member for cooling the aerosol, a support member for increasing the strength of the entire article, and a mouthpiece (described later). The adjacent member 3 is preferably a cooling member.
The cooling member is a member for promoting aerosolization, for example, by cooling the inhaling flavor component and vapor generated in the tobacco rod 1. The cooling member may be a hollow paper tube. The paper tube is preferably constituted of a cardboard having a higher rigidity than the rigidity of the wrapping paper or the tipping paper. The paper tube may be provided with a ventilation V (perforation). Preferably, a plurality of ventilations are provided along the circumference of the paper tube. Also, the cooling member may be filled with a gathered sheet for increasing the heat exchange efficiency. The dimensions of the cooling member are not limited, but the length is preferably 15 to 25 mm, and the diameter is preferably 5.5 to 7.5 mm.
The mouthpiece is a member constituting the mouthpiece end. In an aspect, the mouthpiece 5 includes the filter 52 and the center hole filter 54. As the filter 52 and the center hole filter 54, known filters can be used.
The non-combustion heating type flavor inhalation article can be produced by any method within a range not impairing the advantageous effect. For example, the non-combustion heating type flavor inhalation article can be produced by a method including a step of preparing the above-described members and wrapping the members with the above-described tipping paper.
The combination of the non-combustion heating type flavor inhalation article and a heating device is also referred to as a non-combustion heating type flavor inhalation system.
The heating device 30 includes a body H1, a heater H2, a metal tube H3, a battery unit H4, and a control unit H5. The body H1 has a cylindrical recessed portion H6, and the heater H2 and the metal tube H3 are disposed at positions corresponding to the tobacco rod 1 inserted into the recessed portion H6. The heater H2 can be a heater using electric resistance, and the heater H2 performs heating with electric power being supplied from the battery unit H4 in response to an instruction from the control unit H5 that performs temperature control. The heat generated from the heater H2 is transferred to the tobacco rod 1 through the metal tube H3 having high thermal conductivity. Although the aspect in which the heating device 30 heats the tobacco rod 1 from the outside has been illustrated in the figure, the heating device 30 may heat the tobacco rod 1 from the inside. The heating temperature by the heating device 30 is not particularly limited, but is preferably 400° C. or less, more preferably 150° C. to 400° C., and further preferably 200° C. to 350° C. The heating temperature indicates the temperature of the heater of the heating device 10.
The portion of the non-combustion heating type flavor inhalation article to be inserted into the heating device 10 preferably includes a portion or the entirety of the tobacco rod 1 or a joint portion between the tobacco rod 1 and the adjacent member 3. In this case, the non-combustion heating type flavor inhalation article preferably includes the wrapping material according to the present embodiment in the portion to be inserted into the heating device 10.
A paper tube having a circumference of 22.3 mm and a length of 20 mm, and a paper tube having a circumference of 22.3 mm and a length of 40 mm were prepared and disposed so that their end faces were in contact with each other. A tipping paper A (having a grammage of 37 g/m2) was prepared. The tipping paper A was cut to have a length of 45 mm and a width of 33.5 mm, and wrapped around the paper tubes 1.5 times so that the lengthwise direction of the tipping paper was parallel to the longitudinal direction of the paper tubes, thereby preparing a test piece (see
The 20-mm paper tube that is the test piece was inserted into the heating device. The test piece was subjected to a smoking test using a smoking machine with the set temperature of the heating device set to 295° C. Specifically, the sample was automatically smoked using an automatic smoking machine (LM-1 manufactured by Borgwaldt KC Inc.) under the conditions of a smoking volume of 55.0 ml/sec, a smoking time of 2 sec/puff, and 9 puffs. At this time, the joint portion was heated. The smoked sample was cooled to room temperature and subjected to a breaking test. The outline of the test is illustrated in
A test piece was prepared and evaluated in the same manner as in Example 1, except that a tipping paper A having a length of 45 mm and a width of 50 mm was prepared and wrapped around the paper tubes 2.2 times. In this example, a region in which the tipping paper A was wrapped two times is present with an occupancy rate of 80%, and a region in which the tipping paper A was wrapped three times is present with an occupancy rate of 20%. The grammage of the region wrapped three times is 111 g/m2, and hence does not correspond to the region X. Thus, in this example, the grammage of the region X was 74 g/m2, and the occupancy rate of the region X was 80%.
A tipping paper B (having a grammage of 48 g/m2) was prepared and cut into a size having a length of 45 mm and a width of 22.3 mm. A test piece was prepared and evaluated in the same manner as in Example 1, except that the paper tubes were wrapped 1.1 times using the tipping paper. In this example, a region in which the tipping paper B was wrapped one time is present with an occupancy rate of 90%, and a region in which the tipping paper B was wrapped two times is present with an occupancy rate of 10%. The grammage of the former region is 48 g/m2, and the grammage of the latter region is 96 g/m2, and thus both correspond to the region X. Thus, in this example, the grammages of the region X were 74 g/m2 and 96 g/m2, and the occupancy rate of the region X was 100%.
A test piece was prepared and evaluated in the same manner as in Example 1, except that a tipping paper A having a length of 45 mm was prepared and wrapped around the paper tubes 1.1 times. The grammage of the region X was 74 g/m2, and the occupancy rate of the region X was 10%.
It is clear that the test pieces of the examples require a larger force for breaking than the test piece of the comparative example. The “average load” is the maximum load applied until the sample breaks, and the smaller the number, the faster the sample breaks, and the larger the number, the harder the sample breaks. When the examples and the comparative example are compared, the examples show higher values for the average load. Owing to this, it is clear that the test pieces of the examples sufficiently exhibit the advantageous effect of suppressing breaking and bending.
This application is a continuation of International Application No. PCT/JP2022/027208 filed on Jul. 11, 2022, the entire content of which is incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2022/027208 | Jul 2022 | WO |
| Child | 19010256 | US |
