NON-COMBUSTION HEATING-TYPE FLAVOR INHALATION PRODUCT

- Japan Tobacco Inc.

Provided is a non-combustion heating-type flavor inhalation product which comprises chip paper that joins a cigarette rod and an adjacent member adjacent thereto. The MD direction of the chip paper is substantially parallel to the longitudinal direction of the non-combustion heating-type flavor inhalation product.

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Description
CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation application of PCT International Application No. PCT/JP2022/027206 filed on Jul. 11, 2022. The entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a non-combustion heating type flavor inhalation article.

BACKGROUND ART

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.

CITATION LIST Patent Literature

    • PTL 1: European Patent No. 2046153
    • PTL 2: U.S. Patent Application Publication No. 2015/0128968

SUMMARY OF INVENTION Technical Problem

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.

Solution to Problem

Conventionally, in a flavor inhalation article, a tipping paper has been used so that its CD direction is parallel to the longitudinal direction of the flavor inhalation article. However, the inventors have found that the above-described problem can be solved by changing the orientation of the tipping paper. That is, the above-described problem is solved by the present invention as follows.

Aspect 1

A non-combustion heating type flavor inhalation article includes a tipping paper that joins a tobacco rod and an adjacent member adjacent to the tobacco rod. An MD direction of the tipping paper is substantially parallel to a longitudinal direction of the non-combustion heating type flavor inhalation article.

Aspect 2

In the non-combustion heating type flavor inhalation article according to aspect 1, a pulp content in the tipping paper is 50 to 100 wt %.

Aspect 3

In the non-combustion heating type flavor inhalation article according to aspect 1 or 2, the tipping paper has a grammage of 55 g/m2 or less.

Aspect 4

In the non-combustion heating type flavor inhalation article according to any one of aspects 1 to 3, a tensile strength in the MD direction of the tipping paper is 15 N/15 mm or more.

Advantageous Effects of Invention

The present invention can provide a non-combustion heating type flavor inhalation article that is excellent in handleability after heating.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a diagram illustrating an aspect of a non-combustion type flavor inhalation article.

FIG. 2 is a diagram illustrating an aspect of a non-combustion type flavor inhalation system.

FIG. 3 is a diagram illustrating an outline of a breaking test.

FIG. 4 is a diagram for explaining wrapping.

 DESCRIPTION OF EMBODIMENTS

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.

1. Non-combustion Heating Type Flavor Inhalation Article

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 tipping paper that joins a tobacco rod and an adjacent member adjacent to the tobacco rod, and an MD direction of the tipping paper is substantially parallel to the longitudinal direction of the non-combustion heating type 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°. Conventionally, a tipping paper has been wrapped so that a CD direction thereof is parallel to the longitudinal direction of the non-combustion heating type flavor inhalation article. However, in the present embodiment, the MD direction of the tipping paper is parallel to the longitudinal direction of the non-combustion heating type flavor inhalation article, and hence sufficient strength can be imparted to the flavor inhalation article.

(1) Tipping Paper

The tipping paper is a paper that is wrapped around and joins a plurality of members. In the present embodiment, the MD direction of the tipping paper is substantially parallel to the longitudinal direction of the non-combustion heating type flavor inhalation article. The MD direction of the tipping paper is a direction in which a paper material is conveyed in a papermaking process. 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. In this case, the adhesive is preferably applied to the terminal end over an area in the direction perpendicular to the circumferential direction (the longitudinal direction of the non-combustion heating type flavor inhalation article).

As the tipping paper, paper usually used in the field can be used. From the viewpoint of exhibiting excellent strength, the pulp content of the tipping paper is preferably 50 to 100 wt %, and more preferably 60 to 98 wt %. When the pulp content is 100 wt %, the tipping paper is uncoated paper. When the pulp content is less than 100 wt %, the tipping paper may be 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.

In this aspect, the grammage of the tipping paper 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.

The tensile strength in the MD direction of the tipping paper is preferably 15 N/15 mm or more, and more preferably 20 N/15 mm or more.

(2) Tobacco Rod

Hereinafter, each member will be described with reference to FIGS. 1 and 4. FIG. 1 illustrates an aspect of a non-combustion type flavor inhalation article, and FIG. 4 illustrates an aspect of wrapping. In the figure, reference sign 10 denotes a non-combustion type flavor inhalation article, reference sign 1 denotes a tobacco rod, reference sign W denotes a wrapper, reference sign 3 denotes an adjacent member (preferably a cooling member) adjacent to the tobacco rod, reference sign 5 denotes a mouthpiece, reference sign 52 denotes a filter, reference sign 54 denotes a center hole filter, reference sign 7 denotes a tipping paper, reference sign 7′ denotes a second tipping paper, and reference sign V denotes a ventilation. The aspect illustrated in FIG. 1 is also referred to as a non-combustion direct heating type flavor inhalation article because the tobacco material is heated. FIG. 1(1) illustrates an aspect in which the wrapper W is a wrapping paper of the tobacco rod 1, and the tipping paper 7 is wrapped thereon. The MD direction of the tipping paper 7 is substantially parallel to the longitudinal direction of the non-combustion direct heating type flavor inhalation article. FIG. 1(2) illustrates an aspect in which the wrapper W is a tipping paper 7 that is wrapped around the tobacco rod 1 and the adjacent member 3. In this aspect, the MD direction of the wrapper W that is the tipping paper 7 is substantially parallel to the longitudinal direction of the non-combustion direct heating type flavor inhalation article. In contrast, the orientation of the MD direction of the second tipping paper 7′ is not limited.

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.

(3) Adjacent Member

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.

(4) Mouthpiece

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.

(5) Method of Producing Non-combustion Heating Type Flavor Inhalation Article

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.

2. Non-Combustion Heating Type Flavor Inhalation System

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. FIG. 2 illustrates an aspect of the system. In the figure, reference sign 100 denotes a non-combustion type flavor inhalation system, reference sign 10 denotes a non-combustion type flavor inhaler, and reference sign 30 denotes a heating device including a heater. The heating device includes the heater, a housing, a power source, and the like.

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 10 heats the tobacco rod 1 from the outside has been illustrated in the figure, the heating device 10 may heat the tobacco rod 1 from the inside. The heating temperature by the heating device 10 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 tipping paper according to the present embodiment in the portion to be inserted into the heating device 10.

EXAMPLES Example 1

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) having a length of 45 mm and a width of 25 mm was prepared, and wrapped around the paper tubes to prepare a test piece (see FIG. 3). At this time, the MD direction of the tipping paper was made to be substantially parallel to the longitudinal direction of the test piece.

The 20-mm paper tube of 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 FIG. 3. In the figure, reference sign P denotes a plunger, reference sign B denotes a base, and reference sign J denotes a joint portion. The load and the like at break are presented in Table 1.

Comparative Example 1

A test piece was prepared and evaluated in the same manner as in Example 1, except that the direction orthogonal to the MD direction of the tipping paper A, in other words, the CD direction, was substantially parallel to the longitudinal direction of the test piece.

TABLE 1 Average Average distance* load* mm N Break state Comparative Example 1 0.931 2.243 Broken Example 1 1.864 2.810 Broken *The number of samples: 3

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. Also, the average distance is an average distance of movement of the plunger until the sample breaks, and is an index of the toughness of the sample, in other words, the sample is flexible and not easily broken. When the example and the comparative example are compared, the example shows higher values for the average distance and the average load. Owing to this, it is clear that the test piece of the example sufficiently exhibits the advantageous effect of suppressing breaking and bending.

REFERENCE SIGNS LIST

    • 1 tobacco rod
    • 3 adjacent member, cooling member
    • 5 mouthpiece
      • 52 filter
      • 54 center hole filter
    • 7 tipping paper
    • 7′ second tipping paper
    • V ventilation
    • W wrapper
    • 10 non-combustion type flavor inhalation article
    • 30 heating device
    • 100 non-combustion type flavor inhalation system
    • H1 body
    • H2 heater
    • H3 metal tube
    • H4 battery unit
    • H5 control unit
    • H6 recessed portion
    • H7 vent hole
    • P plunger
    • B base
    • J joint portion
    • PT paper tube

Claims

1. A non-combustion heating type flavor inhalation article comprising a tipping paper that joins a tobacco rod and an adjacent member adjacent to the tobacco rod, wherein an MD direction of the tipping paper is substantially parallel to a longitudinal direction of the non-combustion heating type flavor inhalation article.

2. The non-combustion heating type flavor inhalation article according to claim 1, wherein a pulp content in the tipping paper is 50 to 100 wt %.

3. The non-combustion heating type flavor inhalation article according to claim 1, wherein the tipping paper has a grammage of 55 g/m2 or less.

4. The non-combustion heating type flavor inhalation article according to claim 1, wherein a tensile strength in the MID direction of the tipping paper is 15 N/15 mm or more.

Patent History
Publication number: 20250134172
Type: Application
Filed: Jan 7, 2025
Publication Date: May 1, 2025
Applicant: Japan Tobacco Inc. (Tokyo)
Inventors: Mayuko KOBAYASHI (Tokyo), Yusuke NAGAMATSU (Tokyo), Takeo TSUTSUMI (Tokyo)
Application Number: 19/011,678
Classifications
International Classification: A24F 40/465 (20200101);