WO2003056949A1 - Smoking implement - Google Patents

Smoking implement Download PDF

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Publication number
WO2003056949A1
WO2003056949A1 PCT/JP2002/013232 JP0213232W WO03056949A1 WO 2003056949 A1 WO2003056949 A1 WO 2003056949A1 JP 0213232 W JP0213232 W JP 0213232W WO 03056949 A1 WO03056949 A1 WO 03056949A1
Authority
WO
WIPO (PCT)
Prior art keywords
smoking article
flavor
article according
heating element
inorganic filler
Prior art date
Application number
PCT/JP2002/013232
Other languages
French (fr)
Japanese (ja)
Inventor
Manabu Takeuchi
Atsushi Mikita
Hajime Ohinata
Original Assignee
Japan Tobacco Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Tobacco Inc. filed Critical Japan Tobacco Inc.
Priority to JP2003557321A priority Critical patent/JP3974898B2/en
Priority to CA002471732A priority patent/CA2471732C/en
Priority to AU2002357599A priority patent/AU2002357599A1/en
Priority to EP02806062A priority patent/EP1468618B1/en
Priority to DE60227562T priority patent/DE60227562D1/en
Priority to KR1020047009974A priority patent/KR100587849B1/en
Priority to DK02806062T priority patent/DK1468618T3/en
Publication of WO2003056949A1 publication Critical patent/WO2003056949A1/en
Priority to US10/875,249 priority patent/US20040226568A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10Chemical features of tobacco products or tobacco substitutes
    • A24B15/16Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/10Devices with chemical heating means
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10Chemical features of tobacco products or tobacco substitutes
    • A24B15/16Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/22Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17Filters specially adapted for simulated smoking devices

Definitions

  • the present invention relates to a smoking article, and more specifically, to a smoking article provided with a flavor generator that generates a flavor by heating without burning.
  • Smoking articles for enjoying the flavor and smoke of tobacco without burning the tobacco leaves are already known, and various types of smoking articles have been proposed.
  • Japanese Unexamined Patent Application Publication No. Sho 63-3354648 Japanese Unexamined Patent Application Publication No. Hei 6-46818, Patent No. 1 168 170, Patent No. 301 253
  • Japanese Unexamined Patent Application Publication No. 2-84161 discloses a typical example of a type of smoking article that generates a flavor by utilizing heat generated by a heat generating member attached to the tip. Have been.
  • a granular or sheet-like flavor generator is filled between the heating member and the mouthpiece, and when the flavor generator is heated by the heat of the heating member, the flavor component is vaporized and released. I do.
  • Fuel elements molded from carbon as the main raw material are most commonly used as heat-generating members.However, usually, the maximum heating value is reached between the time of ignition and the first half of smoking. Exhibits uneven behavior such that the calorific value gradually decreases and fire extinguishes. As a result, the amount of flavor produced by this heat shows the same behavior, and there is a considerable difference between the maximum amount and the amount especially in the latter half of smoking. Therefore, it has been pointed out that the user experiences stress during smoking due to uneven changes in the amount of smoke and taste, and the satisfaction is reduced.
  • Japanese Patent Application Laid-Open No. Hei 5-277191 discloses that a fuel member and a flavor generator for a predetermined number of puffs are formed into a plate shape in order to enable the delivery of flavor of a constant quality. Examples of smoking articles stuck together are disclosed.
  • the fuel member and the flavor generator or the insulating inclusion are attached to each other, there is a high possibility that the temperature of the fuel member will decrease and the combustion will not be sustained and will extinguish. Since it is constantly heated, there is a possibility that quality deterioration may easily occur due to unnecessary heating.
  • the present invention has been made in view of the above-mentioned problems, and has a simple structure, and sends out a stable amount of flavor per puff during smoking of a user, thereby reducing the amount of smoke and the like.
  • the purpose is to provide a smoking article that allows people to enjoy smoking easily.
  • a heat generating body is provided at a front end portion, and a tubular body provided with a suction port at a rear end portion;
  • the flavor generator is provided with 65 to 93 masses of a substantially non-porous inorganic filler on a dry mass basis (that is, a ratio in a state without water).
  • a smoking article is provided comprising a plurality of particulates, each comprising a binder in a proportion of 1-3% by weight and a flavoring substance in a proportion of 6-32% by weight.
  • the inorganic filler preferably has a BET specific surface area of 3 m 2 Zg or less, and preferably consists of calcium carbonate.
  • the granular material is packed in a close-packed state, and the ratio of the filling length of the granular material in the axial direction of the cylindrical body to the inner diameter of the cylindrical body is in the range of 2 to 4, and the inner diameter of the cylindrical body and the granular It is preferable that the ratio to the representative diameter of the object is 4 to 15.
  • Granules can be in the form of pellets, tablets or spheres.
  • the binding agent contains methyl hydroxysethyl senorelose.
  • the heating element has a thermal conductivity of 1.OWZm, K or less at room temperature.
  • the heating element is preferably made of a carbonaceous material containing a substantially non-porous inorganic filler in a proportion of 15 to 65% by mass, and the inorganic heating substance contained in the heating element is preferably used.
  • the filler is a carbonic acid or calcium hydroxide having a BET specific surface area of 3 m 2 ng or less.
  • the mouthpiece can be constituted by a fret having a filtration rate of 20% or less or a hollow fret.
  • FIG. 1 is a schematic sectional view showing a smoking article according to one embodiment of the present invention
  • FIGS. 2A and 2B show the DSC analysis when a substantially non-porous inorganic filler was used as the inorganic filler, and when the porous inorganic filler was used, the mixture was mixed with a flavor substance.
  • FIG. 3 is a graph showing the amount of flavor substances collected per puff for the smoking article of Example 1 described in detail below;
  • Figure 4 is a graph showing the amount of flavoring substance collected per puff for the smoking article of Example 2 described in detail below;
  • FIG. 5 is a graph in which the amount of heat flowing into the flavor generator from the carbon molded article heating element in the smoking article of Example 1 is plotted for each puff;
  • FIG. 6 is a graph showing the amount of flavor substances collected for each puff for the smoking article of Comparative Example 1.
  • the smoking article of the present invention is a so-called non-combustion type smoking article which does not burn a flavor generator,
  • a flavor generator having a flavor generator that emits a flavor component when heated by heat has a specific composition and is provided in a cylindrical body.
  • a heating element is provided at the front end of the tubular body, and the rear end of the tubular body constitutes a suction roll.
  • FIG. 1 is a schematic sectional view showing an example of the configuration of the smoking article of the present invention.
  • a smoking article 10 shown in FIG. 1 has a tubular body 11 constituting a smoking article main body.
  • a heating element 13 is provided at the tip of the tubular body 11, and a rear end of the tubular body 11 constitutes a suction port 17.
  • the flavor generator 15 of the present invention is provided in the cylindrical body 11 close to the heating element 13.
  • the cylindrical body 11 is usually cylindrical, and is preferably formed of a thermally stable material such as aluminum or stainless steel, and has a small heat capacity. In order to reduce the thickness, for example, 0.33 mn! It is preferred that the thickness be ⁇ 0.1 mm.
  • the cylindrical body 11 can have a length of about 8 Om to 12 Om m with an inner diameter of about 7 to 8 mm, similar to a normal cigarette.
  • the cylindrical body 11 is usually wound around the entire outside with a heat insulating material 12 so that it can be held by hand without any trouble.
  • the flavor generator 15 used in the smoking article of the present invention contains 65 to 93 mass% of a substantially non-porous inorganic filler and 1 to 1 mass of a binder on a dry mass basis. 3 mass. /. , And a plurality of granules containing flavor substances in a proportion of 6 to 32% by mass, respectively.
  • Flavoring substances are substances (alcohols) that are heated by the heat from an ignited heating element, thereby producing an aerosol.
  • the alcohols for example, dalyceline / propylene glycol, and mixtures thereof can be used.
  • the substantially non-porous inorganic filler which is one of the components of the flavor generator 15 preferably has a BET specific surface area of 3 m 2 / g or less.
  • Activated carbon, ceramics such as alumina beads and silica, and so-called polyporous materials having countless fine pores such as molecular sieves absorb or absorb other substances inside. There is a property to take in.
  • a smoking article such as the smoking article of the present invention
  • additional heat energy for desorption from the pores is required, which not only lowers the vaporization efficiency but also causes thermal denaturation due to continued heating in the pores. The problem arises.
  • the heating is carried out without the above-mentioned problems with the porous substance. Is readily released from flavor generators.
  • substantially nonporous porous inorganic filler it is particularly preferable to use calcium carbonate particles having a BET specific surface area of 3 m 2 Zg or less. It is also possible to form granular molded products using tobacco raw materials or alternative plant raw materials and their extracts. However, due to heating, it causes combustion or thermal decomposition to a small extent, and the unstable thermal behavior tends to make the delivered flavor amount non-uniform, and it is porous. The problem of thermal denaturation of flavors can be caused as well.
  • cellulose or various cellulose derivatives, alginic acids, guagam xanthan gum, locust bean gum and the like can be used.
  • methylhydroxyl cellulose improves the retention of flavoring substances and can provide good flavor.
  • the granular (molded) material constituting the flavor generator of the present invention is obtained by mixing the above substantially non-porous inorganic filler, a binder, and a flavoring substance in the above ratio, and then binding the binder. By adding an appropriate amount of water necessary for generating a force, it can be formed into a desired size and shape by an extruder, a granulator, a tableting machine, or the like. Granules can thus be formed into pellets, tablets, spheres or the like.
  • the smoking article of the present invention is provided at the tip of the cylindrical body 11.
  • the heating element 13 can be formed of a carbonaceous material such as carbon.
  • the carbonaceous material can be formed into a desired shape by an extruder, a tableting machine, or the like.
  • the shape of the carbonaceous molded body is preferably a columnar shape.
  • the heating element introduces air into the cylindrical body 11 from the outside through the heating element 13 by suction and suction from the locus, and the introduced air heated by the heating element 13
  • an air flow passage is provided.
  • Such an air flow passage is provided in at least one groove provided in the outer peripheral surface of the carbonaceous cylindrical molded body along the longitudinal axis of the cylindrical body 11 or the longitudinal axis of the cylindrical body 11.
  • such flow passages are provided around a central through-hole 131, which penetrates the heating element 13 in the axial direction thereof, and around the through-hole 131.
  • a plurality of through holes are provided.
  • the shape (number of grooves, diameter of through-holes) and number of air flow passages in the heating element 13 along with the type and composition of the carbonaceous material, the ignition time, burning speed, combustion temperature, and combustion of the heating element Affects combustion characteristics such as the amount of product generated.
  • the ignition time characteristics must be such that the user can use the cigarette without any discomfort from igniting a normal cigarette (within about 1 second).
  • the ignition time of the carbonaceous molded article within about 1.5 seconds is set so that the thermal conductivity at room temperature (about 22 ° C) becomes 1.0 W / m ⁇ K or less. It was found that this could be achieved by selecting the composition of the quality material.
  • a heating element is formed by using a carbon material composition (residual carbon) containing a substantially nonporous inorganic filler in a proportion of 15 to 65% by mass.
  • a carbon material composition residual carbon
  • a substantially nonporous inorganic filler calcium carbonate having a BET specific surface area of 3 m 2 / g or less is particularly suitable. The heat generated by the combustion of the heating element 13 heats the flavor generating element 15 disposed adjacent to the heating element, and evaporates and releases the flavor.
  • the heating element 13 is usually inserted and fixed in the cylindrical body 11 with its outer periphery surrounded by a heat-resistant enclosure member 14.
  • a flavor supplement 18 can be arranged downstream of the flavor generator 15.
  • the flavor supplement 18 carries, in addition to the flavor components generated from the flavor generator 15, various flavors that require further characterization of the flavor or that are preferably not exposed to high temperatures. It can be made up of tobacco and recycled tobacco according to the purpose, or it can be made of paper, non-woven cloth or other carrier carrying fragrance. It can also be configured. Further, the flavor supplement 18 can be provided in the form of a molded article containing a flavor.
  • the mouthpiece 17 can be provided with a tobacco finolator 171, commonly used in the art.
  • the amount of flavor that can be smoked by the user is ultimately determined by the amount of flavor produced.
  • a low-filtration finalizer with a filtration rate of 20% or less can be used, or a hollow finalizer can be used.
  • the suction port 17 is provided with a heat insulating material at a desired position (usually in the circumferential direction of the suction port 17) as necessary to adjust the suction volume and suction pressure.
  • a plurality of ventilation holes VH can be formed by penetrating through the cylindrical body 2 and the cylindrical body 11.
  • the flavor generator 15 and the flavor supplement 18 can be arranged so as to be in direct contact with each other, but as shown in FIG. It is preferable to provide one.
  • the void 19 promotes cooling of the aerosol or flavor generated from the flavor generator 15 and condenses in the flavor replenisher 18 and the mouth 17. In some cases, the loss due to this can be reduced.
  • the volume of the gap 19 can be appropriately set according to the purpose.
  • a gas permeable member 16 b similar to the gas permeable member 16 a is provided at the downstream end of the flavor generator 15. It can be provided to prevent the particulate matter 15 1 from moving.
  • the particulate matter 15 1 in the filling cylinder 11 be packed closest. If the particulate matter 15 1 is loosely filled, it will be in an unevenly filled state during use, and the fluid flow path formed between the particulate matter 15 1 will also be biased and the uniformity of the flavor delivery amount will be impaired. It is preferable to use close packing so that the initial filling state can be maintained.
  • the close packing refers to a state in which the granular material is densely packed by vibration, tapping, or the like.
  • the filling length (L) of the closest-packed granular material 15 1 and the inner diameter (D) of the cylindrical body 11 are set so that their ratio (LD) force S 2 to 4 is obtained. I found that I liked doing it.
  • the ratio is smaller than 2, the generation behavior of flavor components from the flavor generator 15 tends to be easily influenced by the heat generation pattern of the heater 13, while on the other hand,
  • the ratio is larger than 4, the amount of the flavor to be delivered tends to decrease due to the condensation and deposition in the flavor-generating organism 15, and the uniformity of flavor delivery tends to decrease. Therefore, when the inner diameter (D) of the cylindrical body 11 is about 7 to 8 mm as in a normal cigarette, the filling length (L) is in the range of about 14 to 32 mm. It is preferable to set.
  • the size of the granular material 15 1 is determined by the ratio (D / d) between the representative diameter (d) and the inner diameter (D) of the cylindrical body 11 (D / d): S 3.5-: 16, especially 4- : It turned out that setting to be 15 is preferable.
  • this ratio is smaller than 4, the heat capacity of the particulate matter 1 51 1 increases and the amount of flavor to be delivered at the start of sucking tends to decrease, and the ratio is 15 If it is larger, the suction resistance increases, and it tends to be difficult to suck. Therefore, when the inner diameter (D) of the cylindrical body 11 is about 7 to 8 mm, similar to a normal cigarette, the typical diameter of the granular material 151 is about 2.0 to 0. It is preferable to set it in the range of 5 mm.
  • the representative diameter of the granular material means the longest diameter in the axial direction or the radial direction.
  • a smoking article with the structure shown in Fig. 1 was manufactured with the following specifications.
  • Composition BET specific surface area lm 2 Zg calcium carbonate 80% by mass
  • Shape spherical Representative diameter (d): 1.5 mm
  • composition yellow seed tobacco chopping
  • Composition 85 mass% carbon
  • Figure 4 shows.
  • the uniformity index of the smoking article of this example was 0.81, which was a high value, but the total amount of flavor substances collected by the LZD was lower than that of the previous example because of the large LZD. mg.
  • the uniformity index in the above examples was calculated as follows using the measured values of 2 to 11 puffs.
  • FIG. 5 shows the result of plotting the amount of heat flowing into the flavor generator from the carbon molded article heating element in the smoking article of Example 1 for each puff.
  • the basis for setting the evaluation range of the uniformity index to 2 to 11 puffs was that the amount of heat flowing into the flavor generator was 50% or more of its maximum value (almost 5 puffs).
  • a smoking article was produced in the same manner as in Example 1 except that the content of calcium carbonate in the heating element was 40% by mass, and the smoking operation was performed in the same manner. As a result, the amount of generated carbon monoxide was reduced to 55% of that in Example 1.
  • Flavor generators are susceptible to heat and burn easily In this case, the state of filling changes due to combustion, and the amount of flavor generation increases rapidly due to the heat of combustion, so that the behavior becomes even more inhomogeneous than the heating behavior of the heating element itself.
  • Japanese Patent Application Laid-Open No. 6-46881 discloses a sheet chopping medium consisting of pulp and tobacco-based material containing 40% by mass of a flavor substance (eg, glycerin). The resulting flavor generator was filled into a length of about 3 Omm to produce a smoking article similar to that of Example 2, and the result of measuring the amount of flavor substance collected for each puff is shown in FIG. The total amount of flavor substances collected was about 13 mg, which was not much different from that of Example 1, but the uniformity index was very low at 0.31. Furthermore, when the smoking article was unpacked after smoking, incineration and burning of the sheet cut due to combustion were observed.
  • Example 1 and Example 2 and the smoking article of Comparative Example 1 were actually compared and smoked by an expertly trained taste panel.
  • the smoking articles of Example 1 and Example 2 according to the present invention have a stable perceived amount of flavor smoke in each puff. It was evaluated that the persistence of volume was high.
  • a specific change in taste was observed in the latter half of smoking due to the burning of the flavor generator.
  • a stable amount of flavor is delivered for each puff during smoking of a user, and the smoke amount and the taste vary unevenly.
  • a smoking article is provided that allows the user to enjoy smoking without feeling stress.

Abstract

A smoking implement (10), comprising a tubular body (11) having a heating body (13) fitted to a tip part and a puffing part (17) provided at a rear end part and a flavor generating body (15) installed in the tubular body (11) closely to the heating body (13), the flavor generating body (15) further comprising a plurality of particulate matters (151) having, on dry mass basis, 65 to 93 wt.% substantially nonporous inorganic filler material, 1 to 3 wt.% binder, and 6 to 32 wt.% flavor substance.

Description

明 細 書  Specification
喫煙物品  Smoking articles
技術分野 Technical field
本発明は、 喫煙物品に係 り 、 よ り 具体的には、 燃焼を伴わ ずに加熱によ り 香味を発生する香味発生体を備える喫煙物品 に関する。  The present invention relates to a smoking article, and more specifically, to a smoking article provided with a flavor generator that generates a flavor by heating without burning.
背景技術 Background art
たばこ の葉を燃焼させずに、 たばこ の香味や煙を楽 しむた めの喫煙物品は既に公知であ り 、 種々 のタイ プの ものが提案 されている。 例えば、 特開昭 6 3 — 3 5 4 6 8 号公報、 特開 平 6 — 4 6 8 1 8 号公報、 特許第 1 6 8 1 6 7 0 号、 特許第 3 0 1 2 2 5 3 号、 特開平 2 — 8 4 1 6 4 号公報等には、 先 端に取 り 付けた発熱部材が生成する熱を利用 して香味を発生 する タ イ プの喫煙物品の典型的な例が開示 されている。 これ らの喫煙物品は、 発熱部材と 吸い 口 と の間に、 例えば粒状や シー ト状の香味発生体が充填され、 発熱部材の熱で香味発生 体が加熱される と 香味成分を気化 · 放出する。  Smoking articles for enjoying the flavor and smoke of tobacco without burning the tobacco leaves are already known, and various types of smoking articles have been proposed. For example, Japanese Unexamined Patent Application Publication No. Sho 63-3354648, Japanese Unexamined Patent Application Publication No. Hei 6-46818, Patent No. 1 168 170, Patent No. 301 253 Japanese Unexamined Patent Application Publication No. 2-84161 discloses a typical example of a type of smoking article that generates a flavor by utilizing heat generated by a heat generating member attached to the tip. Have been. In these smoking articles, for example, a granular or sheet-like flavor generator is filled between the heating member and the mouthpiece, and when the flavor generator is heated by the heat of the heating member, the flavor component is vaporized and released. I do.
香味発生体と しては、 不燃性の多孔性物質やたばこ原料等 種々 の成形物が提案されている。 しか しなが ら、 多孔性物質 では、 その内部に吸着 した香味物質を気化ま たは脱着させる ために過剰なエネルギーが必要性と なる ので、 気化効率の低 下や香味物質の熱変性の虞がある。 また、 たばこ材のよ う な 可燃性の物質を基材と する場合には、 実質的に燃焼ある いは 熱分解が起こ る ため熱挙動が非常に不安定と な り 、 送出香味 量に好ま し く ない影響を与える虞がある。 また、 こ のタイ プの喫煙物品には香味の発生量が発熱部材 の発熱状況に左右されやすいと い う根本的な問題もある。 発 熱部材には炭素を主原料と して成形された燃料素子が最も普 通に用いられるが、 通常は、 点火 してから喫煙の前半までの 間に発熱量の最大値を迎え、 それ以降は発熱量が次第に減少 して消火に至る と い う 不均一な挙動を示す。 そのため、 こ の 熱を受けて生成する香味の量も同様の挙動を示 し、 最大量と 特に喫煙後半の量と ではかな り の差を生 じる。 したがって、 使用者は喫煙中、 煙量や味の不均一な変化のためにス ト レス を感 じ、 満足感が減少する こ と が指摘されている。 Various molded products such as nonflammable porous substances and tobacco raw materials have been proposed as flavor generators. However, porous materials require excessive energy to vaporize or desorb the flavor substances adsorbed inside them, which may result in lower vaporization efficiency and thermal denaturation of the flavor substances. There is. In addition, when a combustible substance such as tobacco is used as a base material, combustion or thermal decomposition occurs substantially, so that the thermal behavior becomes very unstable, which is preferable for the amount of flavor to be delivered. This may have an adverse effect. In addition, there is a fundamental problem with this type of smoking article in that the amount of flavor generated is easily affected by the heat generation condition of the heat generating member. Fuel elements molded from carbon as the main raw material are most commonly used as heat-generating members.However, usually, the maximum heating value is reached between the time of ignition and the first half of smoking. Exhibits uneven behavior such that the calorific value gradually decreases and fire extinguishes. As a result, the amount of flavor produced by this heat shows the same behavior, and there is a considerable difference between the maximum amount and the amount especially in the latter half of smoking. Therefore, it has been pointed out that the user experiences stress during smoking due to uneven changes in the amount of smoke and taste, and the satisfaction is reduced.
一方、 特開平 5 — 2 7 7 1 9 1 号公報には、 一定品質の香 味送出を可能にするため、 燃料部材と 、 予め設定されたパフ 回数分の香味発生体を板状に成形して貼 り 合せた喫煙物品の 例が開示されている。 しかしなが ら、 燃料部材と香味発生体 あるいは絶縁介在物が貼 り 合されているために、 燃料部材の 温度が低下 して燃焼が持続しに く く 立ち消えする虞が大き く 、 香味発生体が常に加熱されるために不必要な加熱によって品 質劣化を起こ しやすい虞がある。 また、 燃料部材の燃焼速度 と喫煙のタイ ミ ングを合わせる必要があるため、 使用者が好 みに応じた喫煙間隔を取る こ と ができずにス ト レス が増大さ れる虞があるばかり か、 構造が複雑で製造は極めて困難と思 われる。  On the other hand, Japanese Patent Application Laid-Open No. Hei 5-277191 discloses that a fuel member and a flavor generator for a predetermined number of puffs are formed into a plate shape in order to enable the delivery of flavor of a constant quality. Examples of smoking articles stuck together are disclosed. However, since the fuel member and the flavor generator or the insulating inclusion are attached to each other, there is a high possibility that the temperature of the fuel member will decrease and the combustion will not be sustained and will extinguish. Since it is constantly heated, there is a possibility that quality deterioration may easily occur due to unnecessary heating. In addition, it is necessary to match the burning speed of the fuel member with the timing of smoking, so that not only the user cannot take a smoking interval according to his / her preference but also the stress may be increased. However, the structure is complicated and the production is considered to be extremely difficult.
本発明は上述のよ う な問題点に鑑みてなされたも のであ り 、 簡単な構造で、 使用者の喫煙の間、 一パ フ毎に安定な量の香 味を送出 し、 煙量や味の不均一な変化によ るス ト レスを感じ る こ と な く 喫煙を楽 しむこ と ができ る喫煙物品を提供する こ と を 目 的 と する。 The present invention has been made in view of the above-mentioned problems, and has a simple structure, and sends out a stable amount of flavor per puff during smoking of a user, thereby reducing the amount of smoke and the like. Feel the stress due to uneven changes in taste The purpose is to provide a smoking article that allows people to enjoy smoking easily.
発明の開示 Disclosure of the invention
上記課題を解決する ために、 本発明によれば、 先端部に発 熱体が設け られ、 後端部に吸い 口 部を備える筒状体と 、 該筒 状体内において該発熱体に近接 して設け られた香味発生体を 具備 し、 該香味発生体が、 乾燥質量基準 (すなわち、 水分を 含ま ない状態での割合) で、 実質的に非多孔質の無機充填材 を 6 5 〜 9 3 質量%の割合で、 結合剤を 1 〜 3 質量%の割合 で、 および香味物質を 6 〜 3 2 質量%の割合でそれぞれ含む 複数の粒状物を含む喫煙物品が提供される。  In order to solve the above-mentioned problems, according to the present invention, a heat generating body is provided at a front end portion, and a tubular body provided with a suction port at a rear end portion; The flavor generator is provided with 65 to 93 masses of a substantially non-porous inorganic filler on a dry mass basis (that is, a ratio in a state without water). A smoking article is provided comprising a plurality of particulates, each comprising a binder in a proportion of 1-3% by weight and a flavoring substance in a proportion of 6-32% by weight.
本発明 において 、 無機充填材は、 3 m 2 Z g 以下の B E T比表面積を有する こ と が好ま し く 、 また炭酸カ ルシ ウ ムか ら なる こ と が好ま しい。 In the present invention, the inorganic filler preferably has a BET specific surface area of 3 m 2 Zg or less, and preferably consists of calcium carbonate.
粒状物は、 最密状態に充填 され、 筒状体の軸方向におけ る 粒状物の充填長 と 筒状体の内径と の比が 2 〜 4 の範囲であ り 筒状体の内径 と粒状物の代表径 と の比が 4 〜 1 5 である こ と が好ま しい。 粒状物は、 ペ レ ッ ト 、 タ ブ レ ッ ト ま たは球の形 態にあ り 得る。  The granular material is packed in a close-packed state, and the ratio of the filling length of the granular material in the axial direction of the cylindrical body to the inner diameter of the cylindrical body is in the range of 2 to 4, and the inner diameter of the cylindrical body and the granular It is preferable that the ratio to the representative diameter of the object is 4 to 15. Granules can be in the form of pellets, tablets or spheres.
ま た、 本発明において、 結合剤は、 メ チル ヒ ドロ キシェチ ルセ ノレロ ー ス を含むこ と が好ま しい。  Further, in the present invention, it is preferable that the binding agent contains methyl hydroxysethyl senorelose.
本発明の好ま しい態様において、 発熱体は、 常温において 1 . O W Z m , K以下の熱伝導率を示す。 発熱体は、 実質的 に非多孔質の無機充填材を 1 5 〜 6 5 質量%の割合で含む炭 素質材料から なる こ と が好ま し く 、 発熱体に含まれる無機充 填材は、 3 m 2 ノ g 以下の B E T比表面積を有する炭酸力 ルシゥム力、らなる こ とが好ま しい。 In a preferred embodiment of the present invention, the heating element has a thermal conductivity of 1.OWZm, K or less at room temperature. The heating element is preferably made of a carbonaceous material containing a substantially non-porous inorganic filler in a proportion of 15 to 65% by mass, and the inorganic heating substance contained in the heating element is preferably used. It is preferable that the filler is a carbonic acid or calcium hydroxide having a BET specific surface area of 3 m 2 ng or less.
本発明の喫煙物品において、 吸い口部は、 ろ過率が 2 0 % 以下のフ レターまたは中空のフ レターによ り 構成する こ と ができ る。  In the smoking article of the present invention, the mouthpiece can be constituted by a fret having a filtration rate of 20% or less or a hollow fret.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
図 1 は、 本発明の 1 実施の形態に係る喫煙物品を示す概略 断面図であ り ;  FIG. 1 is a schematic sectional view showing a smoking article according to one embodiment of the present invention;
図 2 Aおよび図 2 Bは、 無機充填材と して、 実質的に非多 孔質の無機充填材と 、 多孔質無機充填材を用いた場合におい て、 香味物質と混合した時の D S C分析結果を示すグラ フで あ り ;  FIGS. 2A and 2B show the DSC analysis when a substantially non-porous inorganic filler was used as the inorganic filler, and when the porous inorganic filler was used, the mixture was mixed with a flavor substance. A graph showing the results;
図 3 は、 以後詳述する実施例 1 の喫煙物品についてパフ毎 に捕集 した香味物質の量を示すグラ フであ り ;  FIG. 3 is a graph showing the amount of flavor substances collected per puff for the smoking article of Example 1 described in detail below;
図 4 は、 以後詳述する実施例 2 の喫煙物品についてパフ毎 に捕集 した香味物質の量を示すグラ フであ り ;  Figure 4 is a graph showing the amount of flavoring substance collected per puff for the smoking article of Example 2 described in detail below;
図 5 は、 実施例 1 の喫煙物品において炭素成形物発熱体か ら香味発生体へ流入する熱量をパフ毎にプロ ッ ト したグラ フ であ り ;  FIG. 5 is a graph in which the amount of heat flowing into the flavor generator from the carbon molded article heating element in the smoking article of Example 1 is plotted for each puff;
図 6 は、 比較例 1 の喫煙物品についてパ フ毎に捕集 した香 味物質の量を示すグラ フである。  FIG. 6 is a graph showing the amount of flavor substances collected for each puff for the smoking article of Comparative Example 1.
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明を詳 しく 説明する。  Hereinafter, the present invention will be described in detail.
本発明の喫煙物品は、 香味発生体を燃焼させないいわゆる 非燃焼タイ プの喫煙物品であって、 着火される発熱体からの 熱に よ り 加熱されて香味成分を放出する香味発生体を備える 香味発生体は、 特定の組成を有 し、 筒状体中に設け られる。 筒状体の先端部には発熱体が備え られ、 筒状体の後端部は吸 レヽ ロ部を構成 してレ、る。 The smoking article of the present invention is a so-called non-combustion type smoking article which does not burn a flavor generator, A flavor generator having a flavor generator that emits a flavor component when heated by heat has a specific composition and is provided in a cylindrical body. A heating element is provided at the front end of the tubular body, and the rear end of the tubular body constitutes a suction roll.
図 1 は、 本発明の喫煙物品の構成の一例を示す概略断面図 である。 図 1 に示す喫煙物品 1 0 は、 喫煙物品本体を構成す る筒状体 1 1 を有する。 筒状体 1 1 の先端部には、 発熱体 1 3 が設け られてお り 、 筒状体 1 1 の後端部は吸い 口部 1 7 を 構成 している。 本発明の香味発生体 1 5 は、 発熱体 1 3 に近 接 して筒状体 1 1 内に設け られてレ、る。  FIG. 1 is a schematic sectional view showing an example of the configuration of the smoking article of the present invention. A smoking article 10 shown in FIG. 1 has a tubular body 11 constituting a smoking article main body. A heating element 13 is provided at the tip of the tubular body 11, and a rear end of the tubular body 11 constitutes a suction port 17. The flavor generator 15 of the present invention is provided in the cylindrical body 11 close to the heating element 13.
筒状体 1 1 は、 通常、 円筒形状であ り 、 アル ミ ニ ウ ム 、 ス テ ン レス鋼等の熱的に安定な材料で形成する こ と が好ま し く ま たその熱容量を小さ く するために厚 さ を薄 く 、 例えば 0 . 0 3 m n!〜 0 . 1 m mの厚さ と する こ と が好ま しい。 筒状体 1 1 は、 通常のシガ レ ッ ト と 同様、 約 7 m m〜 8 m mの内径 約 8 O m m〜 1 2 O m mの長 さ を有する こ と ができ る。 筒状 体 1 1 は、 通常、 その外側全体が断熱材 1 2 によ り 巻装 され て、 手で支障な く 持つこ と ができ る よ う に されている。  The cylindrical body 11 is usually cylindrical, and is preferably formed of a thermally stable material such as aluminum or stainless steel, and has a small heat capacity. In order to reduce the thickness, for example, 0.33 mn! It is preferred that the thickness be ~ 0.1 mm. The cylindrical body 11 can have a length of about 8 Om to 12 Om m with an inner diameter of about 7 to 8 mm, similar to a normal cigarette. The cylindrical body 11 is usually wound around the entire outside with a heat insulating material 12 so that it can be held by hand without any trouble.
本発明の喫煙物品に使用 される香味発生体 1 5 は、 乾燥質 量基準で、 実質的に非多孔質の無機充填材を 6 5 〜 9 3 質 量%の割合で、 結合剤を 1 〜 3 質量。/。の割合で、 および香味 物質を 6〜 3 2 質量%の割合でそれぞれ含む複数の粒状物 1 5 1 力、ら なる。  The flavor generator 15 used in the smoking article of the present invention contains 65 to 93 mass% of a substantially non-porous inorganic filler and 1 to 1 mass of a binder on a dry mass basis. 3 mass. /. , And a plurality of granules containing flavor substances in a proportion of 6 to 32% by mass, respectively.
香味物質は、 着火された発熱体から の熱に よ っ て加熱され る こ と に よ り によ り エア ロ ゾルを生成する物質 (アルコ ール 類、 糖類、 水) や、 香味のみを生成する物質 ( メ ン ソ ール、 カ フ ヱイ ン、 天然抽出物) 、 たばこ、 たばこ抽出物、 これら の混合物等を含む。 アル コ ール類と して は、 例えばダ リ セ リ ンゃプロ ピ レ ンダリ コ ール、 これらの混合物を使用でき る。 香味発生体 1 5 の成分の 1 つである実質的に非多孔質の無 機充填材は、 B E T比表面積が 3 m 2 / g 以下である こ と が好ま しい。 Flavoring substances are substances (alcohols) that are heated by the heat from an ignited heating element, thereby producing an aerosol. Foods, sugars, water), substances that produce only flavor (mensole, caffeine, natural extracts), tobacco, tobacco extracts, and mixtures thereof. As the alcohols, for example, dalyceline / propylene glycol, and mixtures thereof can be used. The substantially non-porous inorganic filler which is one of the components of the flavor generator 15 preferably has a BET specific surface area of 3 m 2 / g or less.
活性炭、 アルミ ナビーズやシ リ カ等のセラ ミ ッ ク ス類、 モ レキユ ラーシーブス等の微細な空孔を無数に持ついわゆる多 孔質物質は、 その内部に他の物質を吸着あるいは吸収によつ て取 り 込む性質がある。 本発明の喫煙物品のよ う な喫煙物品 において、 香味を加熱によって効率よ く 放出させよ う とする 場合、 香味物質が基材の孔内に取 り 込まれている と香味物質 の蒸発に必要な熱エネルギーに加えて、 孔内から脱着させる ための熱エネルギーがさ らに必要と な り 、 気化効率が低下す るばかり か、 孔内で加熱され続けるために熱変性を起こ しゃ すい と レ、 う 問題が生 じる。 本発明においては、 香味物質は、 実質的に非多孔質の無機充填材からなる基材粒子間隙に保持 されているに過ぎないので、 多孔質物質についての上記問題 を伴 う こ と な く 加熱によって香味発生体 1 5 から容易に放出 される。  Activated carbon, ceramics such as alumina beads and silica, and so-called polyporous materials having countless fine pores such as molecular sieves absorb or absorb other substances inside. There is a property to take in. In a smoking article such as the smoking article of the present invention, when flavor is to be efficiently released by heating, it is necessary for the flavor substance to evaporate if the flavor substance is incorporated into the pores of the base material. In addition to the heat energy required, additional heat energy for desorption from the pores is required, which not only lowers the vaporization efficiency but also causes thermal denaturation due to continued heating in the pores. The problem arises. In the present invention, since the flavor substance is only held in the interstices between the base particles made of the substantially non-porous inorganic filler, the heating is carried out without the above-mentioned problems with the porous substance. Is readily released from flavor generators.
実質的に非多孔質の孔質無機充填材と しては、 B E T比表 面積が 3 m 2 Z g 以下の炭酸カ ル シ ウ ム粒子を使用する こ とが特に好ま しい。 たばこ原料あるいは代替植物原料および その抽出物等によ り粒状成形物を成形する こ と も十分可能で あるが、 加熱に よ っ て少なか らず燃焼あ る いは熱分解を招 く ため、 不安定な熱挙動に よ り 送出香味量が不均一にな り やす く 、 多孔質であ るため香味の熱変性の問題を同様に引 き起こ す可能性がある。 As the substantially nonporous porous inorganic filler, it is particularly preferable to use calcium carbonate particles having a BET specific surface area of 3 m 2 Zg or less. It is also possible to form granular molded products using tobacco raw materials or alternative plant raw materials and their extracts. However, due to heating, it causes combustion or thermal decomposition to a small extent, and the unstable thermal behavior tends to make the delivered flavor amount non-uniform, and it is porous. The problem of thermal denaturation of flavors can be caused as well.
本発明の香味発生体に含まれる結合剤 と しては、 セル ロ ー スまたは種々 のセルロース誘導体、 アルギン酸類、 グァーガ ムゃキサンタ ンガム、 ロ ーカ ス ト ビーンガム等が使用でき る。 特に、 メ チル ヒ ドロ キシェチルセルロ ース を用いる と 、 香味 物質の保持性が向上 し、 良好な香喫味を与える こ と ができ る。 結合剤は、 多量に加える ほど成形物の物理的強度が増 し、 取 り 扱いを容易にする。 しかし、 ほ と ん どの結合剤は高温で加 熱される と 香味に好ま し く ない影響を与える こ と が多いため、 取 り 扱いに支障がない限 り 、 1 〜 3 質量%の範囲内で少量で ある こ と が好ま しい。  As the binder contained in the flavor generator of the present invention, cellulose or various cellulose derivatives, alginic acids, guagam xanthan gum, locust bean gum and the like can be used. In particular, the use of methylhydroxyl cellulose improves the retention of flavoring substances and can provide good flavor. The larger the amount of binder added, the greater the physical strength of the molding and the easier it is to handle. However, most binders, when heated at high temperatures, often have an unfavorable effect on flavor, so that a small amount in the range of 1-3% by weight is acceptable unless handling is impaired. It is preferable that
本発明の香味発生体を構成する粒状 (成形) 物は、 上記実 質的に非多孔質の無機充填材と 、 結合剤 と 、 香味物質と を上 記割合で混合 した後、 結合剤の結合力発生のために必要な適 量の水を加えて、 押出 し成形機や造粒機、 打錠機等に よ り 所 望のサイ ズおよび形状に成形する こ と ができ る。 粒状物は、 こ の よ う に して、 ペ レ ッ ト 、 タ ブ レ ッ ト または球等の形態に 成形する こ と ができ る。  The granular (molded) material constituting the flavor generator of the present invention is obtained by mixing the above substantially non-porous inorganic filler, a binder, and a flavoring substance in the above ratio, and then binding the binder. By adding an appropriate amount of water necessary for generating a force, it can be formed into a desired size and shape by an extruder, a granulator, a tableting machine, or the like. Granules can thus be formed into pellets, tablets, spheres or the like.
図 1 に示すよ う に、 発熱体 1 3 と香味発生体 1 5 の間には、 香味発生体 1 5 が発熱体 1 3 と 直接接触 しないよ う に、 金属 メ ッ シュ等の通気性の耐熱性部材 1 6 a が設け られている。 本発明の喫煙物品において筒状体 1 1 の先端部に設け られ る発熱体 1 3 は、 炭素等の炭素質材料に よ り 形成する こ と が でき る。 炭素質材料は、 押出 し成形機、 打錠機等によ って所 望の形状に成形する こ と ができ る。 炭素質成形体の形状と し ては円柱状 と するのが好ま しい。 かかる発熱体は、 吸レ、 ロ カ らの吸引 に よ り 外部から発熱体 1 3 を介 して空気を筒状体 1 1 内部に導入 し、 発熱体 1 3 によ り 加熱された導入空気を香 味発生体 1 5 の粒状物 1 5 1 間の空気流通路に通 じ、 それに よ り 発生 した香味成分を味わ う ために、 空気の流通路を備え る。 その よ う な空気流通路は、 筒状体 1 1 の長手軸に沿っ て 炭素質円柱成形体の外周面内に設け られた少な く と も 1 つの 溝、 または筒状体 1 1 の長手軸に沿っ て炭素質円柱成形体を 貫通する少な く と も 1 つの貫通孔に よ り 構成する こ と ができ る。 図 1 においては、 そのよ う な流通路と して、 発熱体 1 3 をその軸方向に貫通する 中央の貫通孔 1 3 1 、 およびこ の貫 通孔 1 3 1 の周 り に配設 された複数の貫通孔 (図 1 では、 貫 通孔 1 3 2 、 1 3 3 が示 されてレ、る) が設け られてレ、る。 As shown in FIG. 1, air permeability such as a metal mesh is provided between the heating element 13 and the flavor generating element 15 so that the flavor generating element 15 does not come into direct contact with the heating element 13. A heat-resistant member 16a is provided. In the smoking article of the present invention, the smoking article is provided at the tip of the cylindrical body 11. The heating element 13 can be formed of a carbonaceous material such as carbon. The carbonaceous material can be formed into a desired shape by an extruder, a tableting machine, or the like. The shape of the carbonaceous molded body is preferably a columnar shape. The heating element introduces air into the cylindrical body 11 from the outside through the heating element 13 by suction and suction from the locus, and the introduced air heated by the heating element 13 In order to pass the air through the air flow passage between the particulate matter 15 1 of the flavor generator 15 and to taste the flavor component generated thereby, an air flow passage is provided. Such an air flow passage is provided in at least one groove provided in the outer peripheral surface of the carbonaceous cylindrical molded body along the longitudinal axis of the cylindrical body 11 or the longitudinal axis of the cylindrical body 11. Can be constituted by at least one through-hole penetrating the carbonaceous cylindrical molded body along the axis. In FIG. 1, such flow passages are provided around a central through-hole 131, which penetrates the heating element 13 in the axial direction thereof, and around the through-hole 131. A plurality of through holes (in FIG. 1, through holes 13 2 and 13 3 are shown) are provided.
発熱体 1 3 における空気流通路の形状 (溝の深さ 、 貫通孔 の径) や数は、 炭素質材料の種類や組成と と も に、 発熱体の 着火時間、 燃焼速度、 燃焼温度、 燃焼生成物の生成量等の燃 焼特性に影響を与える。 特に、 着火時間特性は、 使用者が通 常のシガ レ ッ ト への着火 (約 1 秒以内) と 違和感な く 使用で き る着火時間特性が要求 される。 本発明によれば、 約 1 . 5 秒以内の炭素質成形体の着火時間は、 常温 (約 2 2 °C ) で熱 伝導率が 1 . 0 W / m · K以下と なる よ う に炭素質材料の組 成を選択する こ と に よ っ て達成 し得る こ と がわかっ た。 さ ら に、 本発明に よれば、 実質的に非多孔質の無機充填材を 1 5 〜 6 5 質量%割合で含有する炭素材料組成物 (残部炭素) に よ り 発熱体を形成する こ と によ り 、 炭素量の実質的な削減が も た ら され、 燃焼生成物量、 特に一酸化炭素の低減を よ り 向 上させる こ と ができ 、 同時に燃焼量すなわちパフ回数を低減 でき、 燃焼生成物の総量を減少 させる こ と も でき る こ と がわ かった。 実質的に非多孔質の無機充填材と しては、 B E T比 表面積が 3 m 2 / g 以下の炭酸カ ルシ ウ ムが特に適 してい る。 発熱体 1 3 の燃焼によ って発生 した熱は、 発熱体に隣接 して配置されている香味発生体 1 5 を加熱 し、 香味を気化 · 放出 させる。 The shape (number of grooves, diameter of through-holes) and number of air flow passages in the heating element 13 along with the type and composition of the carbonaceous material, the ignition time, burning speed, combustion temperature, and combustion of the heating element Affects combustion characteristics such as the amount of product generated. In particular, the ignition time characteristics must be such that the user can use the cigarette without any discomfort from igniting a normal cigarette (within about 1 second). According to the present invention, the ignition time of the carbonaceous molded article within about 1.5 seconds is set so that the thermal conductivity at room temperature (about 22 ° C) becomes 1.0 W / m · K or less. It was found that this could be achieved by selecting the composition of the quality material. So According to the present invention, a heating element is formed by using a carbon material composition (residual carbon) containing a substantially nonporous inorganic filler in a proportion of 15 to 65% by mass. As a result, a substantial reduction in the amount of carbon can be provided, and the amount of combustion products, particularly carbon monoxide, can be further improved. It was found that the total amount could be reduced. As a substantially non-porous inorganic filler, calcium carbonate having a BET specific surface area of 3 m 2 / g or less is particularly suitable. The heat generated by the combustion of the heating element 13 heats the flavor generating element 15 disposed adjacent to the heating element, and evaporates and releases the flavor.
発熱体 1 3 は、 通常、 その外周 を耐熱性の囲包部材 1 4 で 囲まれて、 筒状体 1 1 内に挿入 · 固定されている。  The heating element 13 is usually inserted and fixed in the cylindrical body 11 with its outer periphery surrounded by a heat-resistant enclosure member 14.
筒状体 1 1 内において、 香味発生体 1 5 の下流側には、 香 味補給体 1 8 を配置する こ と ができ る。 香味補給体 1 8 は、 香味発生体 1 5 から生成 した香味成分に加えて、 さ ら に香味 の特徴付けを必要 と する場合や、 高温に曝されない方が好ま しい各種の香料な どを担持させてお く こ と ができ 、 目 的に応 じてたばこ 、 再生たばこ に よ っ て構成する こ と ができ る し、 あ るいは香料を担持 した紙、 不職布等の担体に よ り 構成する こ と も でき る。 さ ら には、 香味補給体 1 8 は、 香料を含む成 形物の形態で提供する こ と もでき る。  In the tubular body 11, a flavor supplement 18 can be arranged downstream of the flavor generator 15. The flavor supplement 18 carries, in addition to the flavor components generated from the flavor generator 15, various flavors that require further characterization of the flavor or that are preferably not exposed to high temperatures. It can be made up of tobacco and recycled tobacco according to the purpose, or it can be made of paper, non-woven cloth or other carrier carrying fragrance. It can also be configured. Further, the flavor supplement 18 can be provided in the form of a molded article containing a flavor.
吸い 口部 1 7 には、 通常、 当該技術分野で一般的に使用 さ れるたばこ用のフ イ ノレ タ ー 1 7 1 を設け る こ と ができ る。 香 味の生成量に対 して最終的に使用者が喫煙可能な香味の量を 効率よ く 送出する ためには、 ろ過率 2 0 %以下の低ろ過性の フ イ ノレターを用レ、るか、 または中空のフ イ ノレタ ーを用レ、る こ と ができ る。 さ ら に、 吸い口部 1 7 には、 吸い込み量や吸い 込み圧を調整するために必要に応 じて所望の位置 (通常、 吸 い 口部 1 7 の周方向) に、 それぞれ断熱材 1 2 および筒状体 1 1 を貫通 して、 複数のベンチ レーシ ヨ ン孔 V Hを形成する こ と ができ る。 The mouthpiece 17 can be provided with a tobacco finolator 171, commonly used in the art. The amount of flavor that can be smoked by the user is ultimately determined by the amount of flavor produced. For efficient delivery, a low-filtration finalizer with a filtration rate of 20% or less can be used, or a hollow finalizer can be used. In addition, the suction port 17 is provided with a heat insulating material at a desired position (usually in the circumferential direction of the suction port 17) as necessary to adjust the suction volume and suction pressure. A plurality of ventilation holes VH can be formed by penetrating through the cylindrical body 2 and the cylindrical body 11.
本発明において、 香味発生体 1 5 と香味補給体 1 8 と は、 直接接する よ う に配置する こ と が き る が、 図 1 に示すよ う に、 それ らの間に空隙部 1 9 を設ける こ と が好ま しい。 こ の空隙 部 1 9 に よ り 、 香味発生体 1 5 カゝ ら生成 したエア ロ ゾルあ る いは香味の冷却を促進 し、 香味補給体 1 8 およ び吸い 口部 1 7 での凝縮に よ る損失を低減でき る場合がある。 空隙部 1 9 の容積は、 これ ら 目 的に応 じて適宜設定する こ と ができ る。 こ の よ う に空隙部 1 9 を設け る場合には、 図 1 に示すよ う に、 香味発生体 1 5 の下流端に、 通気性部材 1 6 a と 同様の通気 性部材 1 6 b を設けて粒状物 1 5 1 が移動 しないよ う にする こ と ができ る。  In the present invention, the flavor generator 15 and the flavor supplement 18 can be arranged so as to be in direct contact with each other, but as shown in FIG. It is preferable to provide one. The void 19 promotes cooling of the aerosol or flavor generated from the flavor generator 15 and condenses in the flavor replenisher 18 and the mouth 17. In some cases, the loss due to this can be reduced. The volume of the gap 19 can be appropriately set according to the purpose. When the void 19 is provided in this way, as shown in FIG. 1, a gas permeable member 16 b similar to the gas permeable member 16 a is provided at the downstream end of the flavor generator 15. It can be provided to prevent the particulate matter 15 1 from moving.
本発明において、 充填筒 1 1 内の粒状物 1 5 1 は、 最密充 填される こ と が好ま しい。 粒状物 1 5 1 は緩 く 充填される と 使用 中に偏っ た充填状態 と な り 、 粒状物 1 5 1 間に形成され る流体流路も偏っ て香味送出量の均一性が損なわれる ので、 初期の充填状態を保てる よ う に最密充填 と する こ と が好ま し い。 こ こ で、 最密充填と は、 粒状物を振動またはタ ッ ピング 等に よ っ て密に充填 した状態をい う 。 こ こ で、 最密充填された粒状物 1 5 1 の充填長 ( L ) と筒 状体 1 1 の内径 ( D ) は、 それらの比 ( L D ) 力 S 2 〜 4 と なる よ う に設定する こ と が好ま しレヽこ と がわかった。 こ の比 が 2 よ り も小 さ い場合には、 香味発生体 1 5 からの香味成分 の発生挙動が発熱体 1 3 の発熱パタ ーンの影響を受けやすい 傾向 と な り 、 他方こ の比が 4 よ り も大き い場合には、 香味発 生体 1 5 内での凝縮沈着に よ り 送出香味の量が減少 しやすい 傾向 と な り 、 香味送出の均一性が低下する傾向 と なる。 従つ て、 筒状体 1 1 の内径 ( D ) が通常のシガ レ ッ ト と 同様、 約 7 〜 8 m mである場合、 充填長 ( L ) は、 約 1 4 〜 3 2 m m の範囲に設定する こ と が好ま しい。 また、 粒状物 1 5 1 の大 き さ は、 その代表径 ( d ) と 筒状体 1 1 の 内径 ( D ) の比 ( D / d ) 力 S 3 . 5 〜 : 1 6 、 特に 4 〜 : 1 5 になる よ う に設定 する こ と が好ま しレヽこ と も わかった。 こ の比が 4 よ り も小さ い場合には、 粒状物 1 5 1 —個の熱容量が増大する ため吸い 始めの送出香味量が減少する傾向 と な り 、 ま た、 こ の比が 1 5 よ り 大き い場合には、 吸引抵抗が増大する ため吸いに く レ、 傾向 と なる。 従っ て、 筒状体 1 1 の内径 ( D ) が通常のシガ レ ッ ト と 同様、 約 7 〜 8 m mである場合、 粒状物 1 5 1 の代 表径は、 約 2 . 0 〜 0 . 5 m mの範囲に設定する こ と が好ま しい。 こ こ で、 粒状物の代表径と は、 軸方向または半径方向 で最も長い径をい う 。 In the present invention, it is preferable that the particulate matter 15 1 in the filling cylinder 11 be packed closest. If the particulate matter 15 1 is loosely filled, it will be in an unevenly filled state during use, and the fluid flow path formed between the particulate matter 15 1 will also be biased and the uniformity of the flavor delivery amount will be impaired. It is preferable to use close packing so that the initial filling state can be maintained. Here, the close packing refers to a state in which the granular material is densely packed by vibration, tapping, or the like. Here, the filling length (L) of the closest-packed granular material 15 1 and the inner diameter (D) of the cylindrical body 11 are set so that their ratio (LD) force S 2 to 4 is obtained. I found that I liked doing it. If this ratio is smaller than 2, the generation behavior of flavor components from the flavor generator 15 tends to be easily influenced by the heat generation pattern of the heater 13, while on the other hand, When the ratio is larger than 4, the amount of the flavor to be delivered tends to decrease due to the condensation and deposition in the flavor-generating organism 15, and the uniformity of flavor delivery tends to decrease. Therefore, when the inner diameter (D) of the cylindrical body 11 is about 7 to 8 mm as in a normal cigarette, the filling length (L) is in the range of about 14 to 32 mm. It is preferable to set. The size of the granular material 15 1 is determined by the ratio (D / d) between the representative diameter (d) and the inner diameter (D) of the cylindrical body 11 (D / d): S 3.5-: 16, especially 4- : It turned out that setting to be 15 is preferable. When this ratio is smaller than 4, the heat capacity of the particulate matter 1 51 1 increases and the amount of flavor to be delivered at the start of sucking tends to decrease, and the ratio is 15 If it is larger, the suction resistance increases, and it tends to be difficult to suck. Therefore, when the inner diameter (D) of the cylindrical body 11 is about 7 to 8 mm, similar to a normal cigarette, the typical diameter of the granular material 151 is about 2.0 to 0. It is preferable to set it in the range of 5 mm. Here, the representative diameter of the granular material means the longest diameter in the axial direction or the radial direction.
以下、 実施例に よ り 本発明を説明するが、 本発明はそれら によ って限定される ものではない。  Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited thereto.
実験例 1 図 2 Aおよび図 2 B は、 非多孔質無機充填材 と して B E T 比表面積 l m 2 Z g の炭酸カ ル シ ウ ム を使用 し、 香味物質 と 混合 した場合 (図 2 A ) 、 多孔性無機充填材と して比表面 積 1 2 0 m 2 Z g のアル ミ ナを使用 し、 同 じ香味物質 と 同 じ割合で混合 した場合 (図 2 B ) の D S C分析結果である。 図 2 Aに示すよ う に、 非多孔質無機充填材を用いた場合には、 香味物質の気化に よ る吸熱ピーク が 1 回のみ現れるのに対 し、 図 2 B に示すよ う に多孔質無機充填材を用いた場合には、 1 つの吸熱ピーク (吸熱ピーク ( 1 ) ) に加えて、 さ ら に高温 域で 2 回 目 の吸熱ピーク (吸熱 ピーク ( 2 ) ) が現れている。 これは、 多孔性物質に吸着された香味物質が気化するために はよ り 多く のエネルギーを必要 と する こ と を示 してお り 、 非 多孔質物質を使用する こ と が有意に有利である こ と がわかる。 実施例 1 Experimental example 1 Figure 2 A and Figure 2 B, when in the non-porous inorganic filler using a carbonate mosquitoes Le sheet c beam having a BET specific surface area lm 2 Z g, was mixed with flavoring substances (Fig. 2 A), porosity These are the DSC analysis results when alumina with a specific surface area of 120 m 2 Z g was used as the inorganic filler and mixed with the same flavor substance at the same ratio (Fig. 2B). As shown in Fig. 2A, when a non-porous inorganic filler was used, the endothermic peak due to the vaporization of the flavoring substance appeared only once, whereas the non-porous inorganic filler appeared as shown in Fig. 2B. When a porous inorganic filler is used, in addition to one endothermic peak (endothermic peak (1)), a second endothermic peak (endothermic peak (2)) appears in a higher temperature region. This indicates that the flavoring material adsorbed on the porous material requires more energy to evaporate, and the use of non-porous material is a significant advantage. You can see that there is. Example 1
以下の仕様で図 1 に示す構造の喫煙物品を作製 した。  A smoking article with the structure shown in Fig. 1 was manufactured with the following specifications.
ぐ筒状体〉  Tubular body>
材質 : アル ミ 箔ラ ミ ネー ト紙  Material: Aluminum foil laminated paper
¾ : 8 5 m m  ¾: 8 5 m
内径 ( D ) 7 . 5 m m  Inner diameter (D) 7.5 mm
ぐ香味発生体 >  Scent generator>
組成 : B E T 比表面積 l m 2 Z g の炭酸カ ル シ ウ ム 8 0 質量% Composition: BET specific surface area lm 2 Zg calcium carbonate 80% by mass
メ チノレ ヒ ド ロ キ シェチノレセノレ ロ ース 1 質量0 /0 グ リ セ リ ン (香味物質) 1 9 質量0 /0 Main Chinore inhibit mud key Shechinoresenore B over scan 1 mass 0/0 grayed Li Se Li emissions (flavorings) 1 9 mass 0/0
形状 : 球状 代表径 ( d ) : 1 . 5 m m Shape: spherical Representative diameter (d): 1.5 mm
最密充填長 ( L ) : 1 5 m m  Closest packing length (L): 15 mm
L / D = 2  L / D = 2
D / d = 5  D / d = 5
ぐ香味補給体〉  Gum flavor supply body>
組成 : 黄色種タバコ刻み  Composition: yellow seed tobacco chopping
長さ : 2 0 m m  Length: 20 mm
<吸レヽロ部〉  <Suction part>
フ イ ノレタ ー  Finale
長さ : 2 0 m m  Length: 20 mm
ぐ発熱体 >  Heating element>
組成 : 炭素 8 5 質量%  Composition: 85 mass% carbon
B E T比表面積 l m 2 g の炭酸カ ノレ シ ゥ ム 1 5 く空隙部 > BET specific surface area lm 2 g of canola carbonate 15 g
長 : 丄 5 m m  Length: 丄 5 mm
こ の喫煙物品について、 自 動喫煙機に よ り 、 1 パ フ の容量 が 5 0 m L 2 秒の喫煙を 3 0 秒間隔で行い、 パ フ毎に捕集 した香味物質の量を測定 した結果を図 3 に示す。 また、 本実 施例の喫煙物品の香味成分放出に関する均一性指数 (後述) は 0 . 7 9 であった。 香味物質の合計捕集量は約 1 1 m g で め っ た。  For this smoking article, an automatic smoking machine smoked each puff with a capacity of 50 mL for 2 seconds at intervals of 30 seconds, and measured the amount of flavor substances collected for each puff. The results are shown in Figure 3. In addition, the uniformity index (discussed below) regarding the release of flavor components of the smoking article of this example was 0.79. The total amount of flavor substances collected was about 11 mg.
実施例 2 Example 2
香味発生体を構成する粒状物の最密充填長を 3 O m m と し ( L / D = 4 ; 空隙部な し) 、 粒状物の代表径が 1 . O m m ( Ό / d = 7 . 5 ) である以外は、 実施例 1 と 同様の喫煙物 品を作製 した。 こ の喫煙物品について、 自動喫煙機によ り 、 1 パフの容量が 5 0 m L Z 2秒の喫煙を 3 0秒間隔で行い、 パフ毎に捕集 した香味物質の量を測定 した結果を図 4 に示す。 本実施例の喫煙物品の均一性指数は 0 . 8 1 と 高い値であつ たが、 L Z D を大き く と ったため ト ー タ ルの香味物質捕集量 は前例よ り も低下 して約 7 m g であった。 The closest packing length of the granules constituting the flavor generator is 3 O mm (L / D = 4; no void), and the typical diameter of the granules is 1.0 mm A smoking article similar to that of Example 1 was prepared except that (Ό / d = 7.5). For this smoking article, the results of measuring the amount of flavoring substances collected for each puff by using an automatic smoking machine, with a puff capacity of 50 mLZ and smoking for 2 seconds at intervals of 30 seconds. Figure 4 shows. The uniformity index of the smoking article of this example was 0.81, which was a high value, but the total amount of flavor substances collected by the LZD was lower than that of the previous example because of the large LZD. mg.
以上の実施例における均一性指数は、 2 から 1 1 パフの測 定値を使用 して、 以下のよ う に計算 した。  The uniformity index in the above examples was calculated as follows using the measured values of 2 to 11 puffs.
均一性指数 = 1 一 (変動係数)  Uniformity index = 1 (coefficient of variation)
変動係数 = (標準偏差) / (平均値)  Coefficient of variation = (standard deviation) / (average value)
こ の均一性指数は、 1 に近い程良好である こ と を示すもの である。  This uniformity index indicates that the closer to 1, the better.
図 5 は、 実施例 1 の喫煙物品において炭素成形物発熱体か ら香味発生体へ流入する熱量をパ フ毎にプロ ッ ト した結果を 示している。 均一性指数の評価範囲を 2 から 1 1 パフ と した 根拠と して、 香味発生体への流入熱量がその最大値 (ほぼ 5 パフ 目 ) の 5 0 %以上である こ と を条件と した。  FIG. 5 shows the result of plotting the amount of heat flowing into the flavor generator from the carbon molded article heating element in the smoking article of Example 1 for each puff. The basis for setting the evaluation range of the uniformity index to 2 to 11 puffs was that the amount of heat flowing into the flavor generator was 50% or more of its maximum value (almost 5 puffs).
実施例 3 Example 3
発熱体中の炭酸カルシウムの含有量を 4 0 質量%と した以 外は実施例 1 と 同様の喫煙物品を作製 し、 同様に喫煙操作を 行った。 その結果、 一酸化炭素生成量は実施例 1 の場合の 5 5 %まで減少 した。  A smoking article was produced in the same manner as in Example 1 except that the content of calcium carbonate in the heating element was 40% by mass, and the smoking operation was performed in the same manner. As a result, the amount of generated carbon monoxide was reduced to 55% of that in Example 1.
比較例 1 Comparative Example 1
香味発生体が熱に弱く 燃えやすい性質あるいは形態である 場合は、 燃焼に よ って充填状態が変化 した り 、 燃焼熱で急激 に香味生成量が増大 した り する ために、 発熱体自身の発熱挙 動よ り も さ ら に不均一な挙動 と なる。 特開平 6 — 4 6 8 1 8 号公報に記載 されている よ う なパルプおよびたばこ系材料よ り なる シー ト刻状媒体に香味物質 (例えばグ リ セ リ ン) を 4 0 質量%含ませた香味発生体を約 3 O m mの長 さ に充填 し、 実施例 2 と 同様の喫煙物品を作製 し、 パフ毎に捕集 した香味 物質の量を測定 した結果を図 6 に示す。 香味物質の合計捕集 量は約 1 3 m g で実施例 1 と 大差なかっ たが、 均一性指数は 0 . 3 1 と 非常に低いも のであった。 さ ら に、 喫煙後の喫煙 物品を解包 した と こ ろ、 燃焼によ る シー ト刻の灰化および焼 失が認め られた。 Flavor generators are susceptible to heat and burn easily In this case, the state of filling changes due to combustion, and the amount of flavor generation increases rapidly due to the heat of combustion, so that the behavior becomes even more inhomogeneous than the heating behavior of the heating element itself. . Japanese Patent Application Laid-Open No. 6-46881 discloses a sheet chopping medium consisting of pulp and tobacco-based material containing 40% by mass of a flavor substance (eg, glycerin). The resulting flavor generator was filled into a length of about 3 Omm to produce a smoking article similar to that of Example 2, and the result of measuring the amount of flavor substance collected for each puff is shown in FIG. The total amount of flavor substances collected was about 13 mg, which was not much different from that of Example 1, but the uniformity index was very low at 0.31. Furthermore, when the smoking article was unpacked after smoking, incineration and burning of the sheet cut due to combustion were observed.
実施例 4 Example 4
実施例 1 お よび実施例 2 の喫煙物品 と 、 比較例 1 の喫煙物 品 と を、 専門的に訓練された喫味パネ ラーに よ り 実際に比較 喫煙 した。 その結果、 本発明によ る実施例 1 および実施例 2 の喫煙物品はパフ毎の香味煙量感が安定 してお り 、 特に喫煙 後半の香味量が落ち込ま ないため、 喫煙が進行 して も煙量感 の持続性が高い と い う 評価を得た。 また、 比較例 1 の喫煙物 品では、 喫煙後半に香味発生体の燃焼によ る特異的な喫味の 変化が認め られた。  The smoking article of Example 1 and Example 2 and the smoking article of Comparative Example 1 were actually compared and smoked by an expertly trained taste panel. As a result, the smoking articles of Example 1 and Example 2 according to the present invention have a stable perceived amount of flavor smoke in each puff. It was evaluated that the persistence of volume was high. In the smoking article of Comparative Example 1, a specific change in taste was observed in the latter half of smoking due to the burning of the flavor generator.
以上述べた よ う に、 本発明によれば、 簡単な構造で、 使用 者の喫煙の間、 一パフ毎に安定な量の香味を送出 し、 煙量や 味の不均一な変化に よ る ス ト レス を感 じる こ と な く 喫煙を楽 しむこ と ができ る喫煙物品が提供される。  As described above, according to the present invention, with a simple structure, a stable amount of flavor is delivered for each puff during smoking of a user, and the smoke amount and the taste vary unevenly. A smoking article is provided that allows the user to enjoy smoking without feeling stress.

Claims

請 求 の 範 囲 The scope of the claims
1 . 先端部に発熱体が設け られ、 後端部に吸い口部を備え る筒状体と 、 該筒状体内において該発熱体に近接して設け ら れた香味発生体を具備 し、 該香味発生体が、 乾燥質量基準で、 実質的に非多孔質の無機充填材を 6 5 〜 9 3 質量%の割合で、 結合剤を 1 〜 3 質量%の割合で、 および香味物質を 6 〜 3 2 質量%の割合でそれぞれ含む複数の粒状物を含む喫煙物品。  1. A cylindrical body provided with a heating element at a front end and a mouthpiece at a rear end, and a flavor generator provided in the cylindrical body and close to the heating element; The flavor generator comprises, on a dry weight basis, a substantially non-porous inorganic filler at a rate of 65-93% by weight, a binder at a rate of 1-3% by weight, and a flavorant at a rate of 6-93%. A smoking article containing a plurality of particulates, each containing 3% by mass.
2 . 前記無機充填材が、 3 m 2 Z g 以下の B E T比表面 積を有する請求項 1 に記載の喫煙物品。 2. The smoking article according to claim 1, wherein the inorganic filler has a BET specific surface area of 3 m 2 Zg or less.
3 . 前記無機充填材が、 炭酸カルシウムである請求項 2 に 記載の喫煙物品。  3. The smoking article according to claim 2, wherein the inorganic filler is calcium carbonate.
4 . 前記粒状物が、 最密状態に充填され、 前記筒状体の軸 方向における該粒状物の充填長と前記筒状体の内径と の比が 2 〜 4 の範囲であ り 、 前記筒状体の内径と粒状物の代表径と の比が 4 〜 1 5 である請求項 1 に記載の喫煙物品。  4. The granular material is packed in a close-packed state, and the ratio of the filling length of the granular material in the axial direction of the cylindrical body to the inner diameter of the cylindrical body is in the range of 2 to 4, The smoking article according to claim 1, wherein the ratio of the inner diameter of the body to the representative diameter of the granular material is 4 to 15.
5 . 前記粒状物が、 ペレッ ト、 タブレ ッ ト または球の形態 にある請求項 1 に記載の喫煙物品。  5. The smoking article according to claim 1, wherein the particulate matter is in the form of a pellet, tablet or sphere.
6 . 前記結合剤が、 メ チル ヒ ド ό キシェチルセルロ ース を 含むこ と を特徴とする請求項 1 に記載の喫煙物品。  6. The smoking article according to claim 1, wherein the binder comprises methyl hydroxydextrin cellulose.
7 . 前記発熱体が、 常温において 1 . 0 Wノ m · Κ以下の 熱伝導率を示す請求項 1 に記載の喫煙物品。  7. The smoking article according to claim 1, wherein the heating element exhibits a thermal conductivity of 1.0 W nom · or less at room temperature.
8 . 前記発熱体が、 実質的に非多孔質の無機充填材を 1 5 〜 6 5 質量%の割合で含む炭素質材料からなる請求項 1 に記 載の喫煙物品。  8. The smoking article according to claim 1, wherein the heating element is made of a carbonaceous material containing 15 to 65% by mass of a substantially non-porous inorganic filler.
9 . 前記発熱体に含まれる無機充填材が、 3 m 2 以 下の B E T比表面積を有する炭酸カ ルシ ウ ムか ら なる請求項 1 に記載の喫煙物品。 9. Inorganic filler contained in the heating element, 3 m 2 or more The smoking article according to claim 1, comprising calcium carbonate having the following BET specific surface area.
1 0 . 前記吸い 口 部が、 ろ過率が 2 0 %以下のブ イ ノレターに よ り 構成 されている こ と を特徴と する請求項 1 に記載の喫煙 物品。  10. The smoking article according to claim 1, wherein the mouthpiece is formed of a binoletter having a filtration rate of 20% or less.
1 1 . 前記吸い 口 部が、 中空のフ ィ ルタ一に よ り 構成されて いる請求項 1 に記載の喫煙物品。 '  11. The smoking article according to claim 1, wherein the mouthpiece is constituted by a hollow filter. '
PCT/JP2002/013232 2001-12-28 2002-12-18 Smoking implement WO2003056949A1 (en)

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JP2003557321A JP3974898B2 (en) 2001-12-28 2002-12-18 Smoking article
CA002471732A CA2471732C (en) 2001-12-28 2002-12-18 Smoking article
AU2002357599A AU2002357599A1 (en) 2001-12-28 2002-12-18 Smoking implement
EP02806062A EP1468618B1 (en) 2001-12-28 2002-12-18 Smoking implement
DE60227562T DE60227562D1 (en) 2001-12-28 2002-12-18 SMOKING DEVICE
KR1020047009974A KR100587849B1 (en) 2001-12-28 2002-12-18 Smoking implement
DK02806062T DK1468618T3 (en) 2001-12-28 2002-12-18 A smoking article
US10/875,249 US20040226568A1 (en) 2001-12-28 2004-06-25 Smoking article

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