US20090044818A1 - Carbonaceous heat source composition for non-combustion type smoking article and non-combustion type smoking article - Google Patents

Carbonaceous heat source composition for non-combustion type smoking article and non-combustion type smoking article Download PDF

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Publication number
US20090044818A1
US20090044818A1 US12/285,618 US28561808A US2009044818A1 US 20090044818 A1 US20090044818 A1 US 20090044818A1 US 28561808 A US28561808 A US 28561808A US 2009044818 A1 US2009044818 A1 US 2009044818A1
Authority
US
United States
Prior art keywords
heat source
aerosol
smoking article
combustion type
weight
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US12/285,618
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English (en)
Inventor
Manabu Takeuchi
Kazuhiko Katayama
Akihiro Koide
Masaaki Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
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
Assigned to JAPAN TOBACCO INC. reassignment JAPAN TOBACCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KATAYAMA, KAZUHIKO, KOBAYASHI, MASAAKI, TAKEUCHI, MANABU
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of US20090044818A1 publication Critical patent/US20090044818A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165—Chemical 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/08—Cigars; Cigarettes with lighting means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/22—Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A24F13/02—Cigar or cigarette holders
    • A24F13/08—Cigar or cigarette holders with special devices, e.g. spikes or grippers, for holding the cigars or cigarettes

Definitions

  • the present invention relates to a carbonaceous heat source composition for a non-combustion type smoking article and to a non-combustion type smoking article.
  • Tobacco is a typical flavor generating material for tasting flavor in the smoke (aerosol) generated by combusting tobacco leaves through the sense of taste and sense of smell of human.
  • non-combustion type smoking articles In recent years, in place of or in addition to tobacco, non-combustion type smoking articles have been developed for enjoying flavor and taste of tobacco and for enjoying aerosol without combusting tobacco leaves.
  • These non-combustion type smoking articles comprise a heat source which is a heat-generating member mounted on the tip and an aerosol-generating section including an aerosol-generating material formed of an appropriate substrate on which a flavoring component is carried.
  • the heat source is physically separated from the aerosol-generating section.
  • the heat source is combusted, and the heat of combustion heats the aerosol-generating member without combustion to generate an aerosol containing the flavoring component.
  • Smokers inhale the aerosol to enjoy the flavor.
  • a carbonaceous heat source is exclusively used.
  • Jpn. Pat. Appln. KOKAI Publication No. 5-207868 discloses a carbonaceous fuel composition for fuel element which includes carbon, a binder, tobacco and sodium.
  • a carbonaceous fuel composition for fuel element which includes carbon, a binder, tobacco and sodium.
  • a first aspect of the present invention provides a carbonaceous heat source composition for a non-combustion type smoking article, comprising carbon and 0.5 to 5% by weight of a polyhydric alcohol.
  • FIG. 1 is a cross-sectional view illustrating an example of a non-combustion type smoking article.
  • FIG. 2 is a graph showing the relationship between the glycerin content and the percentage increase in TPM or the ignition improvement rate.
  • a carbonaceous heat source composition for a non-combustion type smoking article according to the present invention comprised carbon and 0.5 to 5% by weight of a polyhydric alcohol based on the total weight of a carbonaceous heat source composition. If the amount of the polyhydric alcohol is less than 0.5% by weight, the amount of generated aerosol (TPM) does not increase significantly. Also, if the amount of the polyhydric alcohol exceeds 5% by weight, the percentage increase in carbon monoxide (CO) generated by the combustion of a heat source increases. In particular, when the polyhydric alcohol is contained in an amount of 1.0% by weight or more (5% by weight or less), the heat source formed from the composition is significantly improved in ignitability. Also, if the heat source comprising a polyhydric alcohol in an amount of 1.0% by weight or more (5% by weight or less) is used, the amount of TPM increases more.
  • polyhydric alcohol glycerin, propylene glycol or the like may be used.
  • the carbonaceous heat composition of the present invention contains a binder for binding carbon in addition to the polyhydric alcohol and carbon.
  • the amount of the binder is preferably 5 to 15% by weight based on the total weight of the carbonaceous heat source composition.
  • the amount of the binder is less than 5% by weight, there is a tendency that the binding ability of the binder is exhibited insufficiently.
  • the amount of the binder exceeds 15% by weight, the amount of carbon is reduced, with the result that there is a tendency that the heat source is insufficiently combusted.
  • an alginate for example, an ammonium salt and sodium salt
  • carboxymethyl cellulose or its salt for example a sodium salt
  • pectin and carrageenan or its salt for example, a sodium salt
  • the carbonaceous heat source composition of the present invention may contain calcium carbonate (particles).
  • Calcium carbonate is, when formulated, preferably formulated in a ratio of 30 to 55% by weight based on the total weight of the carbonaceous heat source composition.
  • the amount of calcium carbonate is less than 30%, there is a tendency that the effect of suppressing combustion is insufficiently developed.
  • the amount of calcium carbonate exceeds 55% by weight, the number of puffs of the smoking article is significantly reduced and therefore such a carbonaceous heat source is practically unacceptable.
  • the carbonaceous heat source composition of the present invention comprises 0.5 to 5% by weight of a polyhydric alcohol as mentioned above and the balance is carbon, including the case where the heat sauce further contains a binder and (or) calcium carbonate.
  • the source (raw material) of carbon (particles) is not particularly limited, and any known carbons can be used.
  • the carbonaceous heat source composition of the present invention may be molded as the heat source by molding technology such as extrusion molding.
  • the polyhydric alcohol may be blended with other raw materials in advance prior to molding, or may be supplied to other raw materials using another method in which a nozzle for supplying the polyhydric alcohol is attached to the mixing/kneading part of the molding machine to supply the polyhydric alcohol from this nozzle in the molding using the molding machine.
  • the non-combustion type smoking article of the present invention comprises an aerosol-generating section generating aerosol by heating and a heat source provided at an end of the aerosol-generating section so as to be physically separated from the aerosol-generating section, wherein the heat source is constituted of the carbonaceous heat source composition of the present invention. Since the smoking article of the present invention is a non-combustion type, a burning line, which occurs during combustion and is observed in the case of using a combustion type smoking article, does not exist in the aerosol-generating section at all.
  • the non-combustion type smoking article of the present invention can increase TPM by, for example, 16.0% or more while suppressing the percentage increase in carbon monoxide by, for example, 5% or less as compared with a non-combustion type smoking article using a carbonaceous heat source containing no polyhydric alcohol.
  • a heat source comprising a polyhydric alcohol in a ratio of 1.0 to 5% by weight can be improved in ignition time by 11% or more than a carbonaceous heat source comprising no polyhydric alcohol.
  • a non-combustion type smoking article 10 illustrated in FIG. 1 comprises an aerosol-generating section 11 , which generates an aerosol containing a flavoring component by heating.
  • the aerosol-generating section 11 is composed of a first aerosol-generating portion 111 and a second aerosol-generating portion 112 .
  • the first aerosol-generating portion 111 comprises a hollow cylinder made of a thermally stable material such as aluminum or stainless steel (not shown), in which sheet tobacco shreds or tobacco shreds, for example, are filled.
  • the second aerosol-generating portion 112 comprises a similar hollow cylinder (not shown) in which tobacco shreds, for example, are filled.
  • the first aerosol-generating portion 111 and the second aerosol-generating portion 112 are in contact with each other and positioned in the longitudinal direction of the smoking article 10 .
  • a cylindrical carbonaceous heat source 12 formed of the composition of the present invention is provided at the front end of the aerosol-generating section 11 (the front end of the first aerosol-generating part 111 ) so as to be physically separated from the aerosol-generating section 11 .
  • a through-hole 121 for taking in the outer air is formed within the heat source 12 in the axial direction.
  • the outer periphery of the heat source 12 is generally surrounded by a heat resistant member 13 consisting of, for example, glass wool.
  • An ordinary filter 14 may be provided at the rear end of the aerosol-generating section 11 (the rear end of the second aerosol-generating portion 112 ).
  • Such non-combustion type smoking article may have an outer appearance of the ordinary cigarette.
  • a carbonaceous heat source was molded from a composition containing glycerin (0.5 to 5% by weight), carbon (45.0 to 49.5% by weight), ammonium alginate (10% by weight) which was a binder and calcium carbonate (40% by weight).
  • glycerin 0.5 to 5% by weight
  • carbon 45.0 to 49.5% by weight
  • ammonium alginate 10% by weight
  • a smoking article having the construction shown in FIG. 1 was fabricated.
  • Comparative Example 1 a smoking article was fabricated in the same manner as above using a carbonaceous heat source to which no glycerin was added. These smoking articles were respectively subjected to a smoking combustion by an automatic smoking machine under the standard smoking condition (TIOJ standard measuring method [fourth Edition] attachment 1) to measure the amounts of generated TPM and CO and the number of puffs.
  • the ignition time of the heat source was measured.
  • the condition of the first puff was optionally set under the condition that the amount of air to be drawn was 2 seconds/35 cc, to ignite the smoking article by using a cigar lighter.
  • the set value of the first puff was defined as the ignition time.
  • Table 2 shows the results of the percentage increase in TPM, percentage increase in CO and ignition improvement rate which are calculated based on the amounts of generated TPM and CO, and the ignition time in Comparative Example 1. Furthermore, a graph showing the relationship between the glycerin content and the percentage increase in TPM or the ignition improvement rate is shown in FIG. 2 . In FIG. 2 , the line a shows the percentage increase in TPM and the line b shows the ignition improvement rate.
  • TABEL 1 Composition of the carbonaceous heat source composition Calcium Carbon carbonate Binder Glycerin Total (% by (% by (% by (% by (% by (% by (% by weight) weight) weight) weight) weight) Comparative 50.0 40.0 10.0 0 100
  • Example 1 49.5 40.0 10.0 0.5
  • Example 2 49.0 40.0 10.0 1.0
  • Example 3 47.0 40.0 10.0 3.0
  • Example 4 45.0 40.0 10.0 5.0 100
  • the smoking articles of Examples 1 to 4 using carbonaceous heat sources obtained from carbonaceous heat source compositions containing glycerin in a ratio of 0.5 to 5% by weight provide increased amount of generated TPM by 16.4% or more (maximum of 35.8%) than the smoking article of Comparative Example 1 using a carbonaceous heat source containing no glycerin.
  • the smoking articles of Examples 1 to 4 show substantially no increase in the amount of CO.
  • the amount of generated TPM is increased as the glycerin content is increased in the range from 0.5% by weight (Example 1) to 5% by weight (Example 4).
  • the glycerin content is 1.0% by weight or more
  • the amount of generated TPM is significantly increased (Examples 2 to 5).
  • the ignition time is improved by 11.1 to 16.7% when the glycerin content is 1% or more (Examples 2 to 5).
  • the sample in which the glycerin content is 0.5% (Example 1) is improved in the percentage increase in TPM by 16.4% though the ignition time is not improved.
  • the amount of generated TPM can be increased by adding glycerin while suppressing the increase in the amount of generated CO by controlling the amount of carbon in the heat source composition.
  • the amount of a polyhydric alcohol is set to be in a range from 0.5 to 5% by weight in the carbonaceous heat source composition for a non-combustion type smoking article, whereby the amount of aerosol generated from the aerosol-generating member can be increased while minimizing increase in the amount of generated carbon monoxide by the combustion of the heat source.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US12/285,618 2006-04-11 2008-10-09 Carbonaceous heat source composition for non-combustion type smoking article and non-combustion type smoking article Abandoned US20090044818A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006108964 2006-04-11
JP2006-108964 2006-04-11
PCT/JP2007/057580 WO2007119678A1 (ja) 2006-04-11 2007-04-04 非燃焼型喫煙物品用炭素質熱源組成物及び非燃焼型喫煙物品

Related Parent Applications (1)

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PCT/JP2007/057580 Continuation WO2007119678A1 (ja) 2006-04-11 2007-04-04 非燃焼型喫煙物品用炭素質熱源組成物及び非燃焼型喫煙物品

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US (1) US20090044818A1 (ko)
EP (1) EP2018813A4 (ko)
JP (1) JP5227793B2 (ko)
KR (1) KR101120240B1 (ko)
CN (1) CN101420876B (ko)
CA (1) CA2649319C (ko)
HK (1) HK1126628A1 (ko)
MY (1) MY151891A (ko)
RU (1) RU2384280C1 (ko)
TW (1) TWI317265B (ko)
UA (1) UA88120C2 (ko)
WO (1) WO2007119678A1 (ko)

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