WO2023163110A1 - Filtre pour article d'inhalation d'arôme à chauffage sans combustion - Google Patents

Filtre pour article d'inhalation d'arôme à chauffage sans combustion Download PDF

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Publication number
WO2023163110A1
WO2023163110A1 PCT/JP2023/006749 JP2023006749W WO2023163110A1 WO 2023163110 A1 WO2023163110 A1 WO 2023163110A1 JP 2023006749 W JP2023006749 W JP 2023006749W WO 2023163110 A1 WO2023163110 A1 WO 2023163110A1
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WO
WIPO (PCT)
Prior art keywords
filter
adsorbent
sheet
flavor
combustion
Prior art date
Application number
PCT/JP2023/006749
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English (en)
Japanese (ja)
Inventor
哲也 本溜
Original Assignee
日本たばこ産業株式会社
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 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Publication of WO2023163110A1 publication Critical patent/WO2023163110A1/fr

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Classifications

    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices

Definitions

  • the present invention relates to a non-combustion heating type filter for flavor inhalation articles.
  • non-burning type flavor inhaling articles have been developed.
  • the aerosol-generating substrate is heated to generate an aerosol. Improvements in the flavor and taste of these articles are also desired, as with conventional combustion-type smoking articles.
  • conventional combustion-type smoking articles it is known to fill the acetate filter with activated carbon in order to remove components that impart undesirable flavor and taste.
  • US Pat. No. 6,200,000 discloses a smoking article comprising a rod of smoking material and a first sheet comprising at least one diluent. It is said that the sheet may contain activated carbon.
  • Patent Document 2 discloses a charcoal filter in which activated carbon is externally added to the surface of activated carbon-containing paper, and the paper is folded and filled in a wrapper.
  • a filter for non-combustion heated flavor inhalation articles comprising an adsorbent-containing sheet.
  • Aspect 2 The filter according to aspect 1, wherein the amount of adsorbent per ventilation resistance (Ch/PD) is 5 to 15 (mg/mmH 2 O).
  • Aspect 3 A filter according to aspects 1 or 2, wherein the adsorbent comprises activated carbon.
  • Aspect 4 4. The filter of any one of aspects 1-3, wherein the sheet is surface treated.
  • a non-combustion heated flavor inhalation article comprising a filter according to any one of aspects 1-5.
  • Aspect 7 providing the sheet; and providing a tubular wrapper and a filter comprising the sheet disposed within the wrapper;
  • a method for manufacturing a filter according to any one of aspects 1 to 5, comprising:
  • Aspect 8 The manufacturing method according to aspect 7, further comprising the step of subjecting the sheet to surface treatment.
  • the present invention can provide a filter that can efficiently remove components that adversely affect flavor and taste.
  • X to Y includes X and Y which are the end values.
  • a non-combustion heating filter for flavor inhalation articles (hereinafter also simply referred to as "filter") comprises a cylindrical wrapper and an adsorbent-containing sheet filled therein.
  • a wrapper commonly used in the art can be used.
  • the adsorbent-containing sheet packed therein is preferably folded and filled so that the ridgeline formed by the folding is substantially parallel to the longitudinal direction.
  • adsorbent makes it easier to remove components that adversely affect flavor and taste, such as carbonyl components.
  • increasing the amount of adsorbent (Ch) increases airflow resistance (PD) and tends to remove components that have a favorable effect on flavor and taste. Therefore, the inventors set an index of Ch/PD in order to standardize these balances. From this point of view, the amount of adsorbent per ventilation resistance (Ch/PD) of the filter is 5 to 15 (mg/mmH 2 O). If the Ch/PD is less than the lower limit, the removal of components that adversely affect the flavor and taste is insufficient, and even the necessary components are removed, resulting in a decrease in the flavor and taste.
  • Ch/PD exceeds the above upper limit, the ability to reduce components that are undesirable for flavor and taste is saturated.
  • the lower limit of Ch/PD is preferably 6 (mg/mmH 2 O) or more, and the upper limit is preferably 10 (mg/mmH 2 O) or less, more preferably 8 (mg/mmH 2 O). 2 O) or less.
  • the ventilation resistance is measured by a filter quality measuring instrument (SODIM product name: SODIMAX). Specifically, the ventilation resistance is measured by covering the side of the sample with an air-impermeable material (rubber, etc.) to prevent air from flowing in, and sucking from one end of the sample at a flow rate of 17.5 cm 3 /sec. Measured as differential pressure (mmH 2 O) across both ends.
  • SODIM product name: SODIMAX filter quality measuring instrument
  • the non-combustion heating type filter for flavor inhaling articles includes an adsorbent-containing sheet.
  • the adsorbent is an agent capable of adsorbing components in the aerosol generated from the non-combustion heating type flavor inhaling article.
  • Adsorbents include, for example, activated carbon, zeolite, activated alumina, and silica gel. Among them, from the viewpoint of availability, etc., the adsorbent preferably contains activated carbon, and more preferably consists of activated carbon.
  • the adsorbent content in the adsorbent-containing sheet is adjusted so as to achieve the above Ch/PD.
  • the adsorbent content is between 10 and 80 g/m 2 , more preferably between 40 and 60 g/m 2 .
  • the adsorbent is preferably activated carbon.
  • the surface area of the activated carbon is preferably 500-3000 m 2 /g, more preferably 700-2500 m 2 /g.
  • the surface area of the adsorbent is the BET specific surface area and is measured by the nitrogen adsorption method.
  • Pulp The adsorbent-containing sheet preferably contains pulp as a matrix. Pulp is an aggregate of cellulose fibers extracted by mechanically or chemically treating plant raw materials. Preferably, the plant material is wood.
  • the adsorbent-containing sheet preferably contains synthetic fibers in addition to the pulp.
  • Synthetic fibers include polyester fibers.
  • the polyester constituting the polyester fiber contains diol residues and diacid residues.
  • the diol residue preferably contains an alkylene glycol residue having 2 to 4 carbon chains, more preferably an ethylene glycol residue.
  • the diacid residues comprise terephthalic acid, isophthalic acid, or phthalic acid residues, and more preferably have terephthalic acid residues.
  • Such polyester can be represented by the following formula. In the formula, n represents the number of repetitions, and m represents an integer of 2-4.
  • polyesters containing alkylene glycol residues with 2 to 4 carbon chains, or isophthalic acid or phthalic acid residues do not have an excessively high degree of crystallinity, thus improving the adhesiveness between polyester fibers and adsorbent particles. .
  • the adsorbent-containing sheet preferably contains a binder.
  • the binder enhances the adhesiveness between the fibers and enhances the adhesiveness between the fibers and the adsorbent.
  • Known binders can be used, examples of which include polyvinyl alcohol and vinyl acetate.
  • the adsorbent-containing sheet preferably has the following properties, and the blending amounts of the components may be appropriately adjusted so as to achieve the properties.
  • Thickness 100-300 ⁇ m, more preferably 150-250 ⁇ m
  • Iodine adsorption performance JIS K 1474): 300-2000 mg/g, more preferably 500-1500 mg/g
  • Air permeability 0 to 30,000 CU, preferably 0 to 10,000 CU, more preferably 0 to 2000 CU
  • Air permeability (unit: Coresta unit (CU)) is the air flow rate (cm 3 ) per 1 cm 2 for 1 minute under the condition of a differential pressure of 1 kPa.
  • the air permeability can be measured using an air permeability meter PPM1000M manufactured by Cerulean.
  • the effective surface area of the adsorbent per m 2 of the adsorbent-containing sheet is preferably 5,000 to 70,000 m 2 /m 2 . Effective surface area is the total area of adsorbent exposed on the surface of the sheet. This numerical range is based on:
  • the area buried within the sheet of adsorbent is believed to be, on average, 30% to 50% of the surface area of a single adsorbent. That is, the exposed area of the adsorbent is 50% to 70% on average. Assuming that the surface area of the adsorbent is 1000 m 2 /g and the content of the adsorbent in the sheet is 10 g/m 2 , the effective surface area when an average of 50% of the area is exposed is calculated as follows. .
  • the adsorbent-containing sheet is not surface-treated. In another aspect, the adsorbent-containing sheet is surface-treated.
  • the surface treatment includes known treatments, preferably crepe treatment. Crepe treatment is a treatment in which crepe-like creases are formed on a sheet by using a doctor on a roll or the like. The crepe depth is preferably 0.1-0.5 ⁇ m.
  • the filter according to the present embodiment has the performance of efficiently removing components that adversely affect the flavor and taste, but it is difficult to remove components that are important to the flavor and taste.
  • formaldehyde, acetaldehyde, and acrolein which have been difficult to remove with conventional filters, can be efficiently removed.
  • the reason for this is not limited, it is presumed that air gaps of a suitable size are formed in the filter and the adsorbent is firmly held in the matrix of the sheet.
  • the filter can also absorb moisture during storage, thus avoiding the user feeling hot at the initial puff of the suction article.
  • Filter manufacturing method A filter is manufactured by a method comprising Step 1 of preparing an adsorbent-containing sheet, and Step 2 of preparing a filter comprising a cylindrical wrapper and the sheet arranged in the wrapper. is preferred.
  • Step 1 can be carried out by a known method using the components described above.
  • a papermaking sheet can be produced by preparing a slurry by mixing the above components and making paper from the slurry.
  • a cast sheet can also be produced by casting the slurry onto a substrate.
  • Step 2 can also be carried out by a known method.
  • a filter can be manufactured by filling a folded adsorbent-containing sheet or a cut adsorbent-containing sheet into a cylindrical wrapper.
  • the filter can be produced by folding the adsorbent-containing sheet into a columnar shape and wrapping it with a wrapper.
  • a step of applying the surface treatment to the adsorbent-containing sheet may be provided.
  • FIG. 1 shows one embodiment of a non-combustion heating flavor inhalation article.
  • 10 is a non-combustion heating type flavor suction article
  • 1 is a tobacco member
  • 3 is a cooling member
  • 5 is a mouthpiece
  • 51 is a first filter
  • 52 is a second filter
  • V is a ventilation.
  • the size of the non-combustion heated flavor inhalation article is not limited. For example, it may have a length of 50-80 mm and a cross-sectional diameter of the order of 5.5-7.5 mm.
  • a tobacco member is a substantially columnar member for generating flavor components contained in tobacco raw materials.
  • the tobacco member comprises a tobacco material and a wrapping paper (wrapper) wrapped around it.
  • the shape of the tobacco material to be filled in the wrapping paper is not limited. time, etc.
  • the above-mentioned sheet may be gathered, folded, or spirally formed into a wrapping paper without being cut to form a tobacco member. Alternatively, the sheet may be cut into strips, and these strips may be packed in a wrapping paper concentrically or in such a manner that the longitudinal direction of the strips is parallel to the longitudinal direction of the tobacco member to form the tobacco member.
  • the packing density of the tobacco material is not particularly limited, but is usually 200 mg/cm 3 or more, preferably 250 mg/cm 3 or more, from the viewpoint of ensuring the characteristics of the non-combustion heating type flavor inhaling article and imparting a good smoking taste. be.
  • the upper limit is usually 800 mg/cm 3 or less, preferably 600 mg/cm 3 or less.
  • the length of the tobacco member 1 is not limited, it is preferably 10 to 25 mm.
  • the diameter is not limited, it is preferably 6 to 8 mm.
  • the tobacco material may generate steam as it is heated. Although the heating temperature is not limited, it is about 30 to 400.degree. Aerosol sources such as glycerin, propylene glycol, polyols such as 1,3-butanediol, and the like may be added to the tobacco material to facilitate aerosol generation. The amount of the aerosol source added is preferably 5-50% by weight, more preferably 10-30% by weight, based on the dry weight of the tobacco material. In addition, known flavoring agents may be added to the tobacco material.
  • Aerosol sources such as glycerin, propylene glycol, polyols such as 1,3-butanediol, and the like may be added to the tobacco material to facilitate aerosol generation. The amount of the aerosol source added is preferably 5-50% by weight, more preferably 10-30% by weight, based on the dry weight of the tobacco material.
  • known flavoring agents may be added to the tobacco material.
  • the cooling member 3 is adjacent to the tobacco member 1 on the downstream side. Downstream refers to the direction toward the mouth end.
  • the cooling member 3 is a member for promoting aerosolization by, for example, cooling the flavor components and vapor generated in the tobacco member 1 .
  • the cooling member may be a hollow paper tube.
  • the paper tube is preferably made of cardboard, which is more rigid than the wrapping paper or chip paper. Ventilation V (opening) may be provided in the paper tube.
  • a plurality of ventilations are preferably provided along the circumference of the paper tube.
  • the cooling member may also be filled with gathered sheets to enhance heat exchange efficiency. Although the dimensions of the cooling member are not limited, it preferably has a length of 10 to 25 mm and a diameter of 5.5 to 7.5 mm.
  • the mouthpiece is a member that constitutes the mouth end.
  • the mouthpiece 5 comprises a first filter 51 and a second filter 52 .
  • the first filter 51 may be a filter commonly used in the art and may be a solid acetate filter.
  • the second filter 52 includes a wrapper and an adsorbent-containing sheet packed inside the wrapper. Although the length of the second filter 52 is not particularly limited, it can be 5 to 20 mm, preferably about 10 to 15 mm.
  • Non-combustion heating flavor inhalation system The combination of non-combustion heating flavor inhalation article and heating unit is also called non-combustion heating flavor inhalation system.
  • FIG. 2 shows one aspect of the system.
  • 100 is a non-combustion heating type flavor inhalation system
  • 10 is a non-combustion heating type flavor inhalation article
  • 30 is a heating unit provided with a heater.
  • the heating unit includes a heater, a housing, a power supply, and the like.
  • the heater preferably heats the tobacco member 1 electrically.
  • the heater may be of a type that heats from the outer periphery of the tobacco member 1 or a type that is inserted into the tobacco member 1 and heated from the inside.
  • the non-combustion heating flavor suction system may be an IH (Induction Heating) heating system.
  • the heating unit 30 consists of an induction coil.
  • the heating unit is usually arranged on the periphery of the tobacco member 1 .
  • the tobacco member 1 may then include a susceptor that is heated by a magnetic field generated by energizing the induction coil.
  • a filter for non-combustion heated flavor inhalation articles comprising an adsorbent-containing sheet.
  • Aspect 2 The filter according to aspect 1, wherein the amount of adsorbent per ventilation resistance (Ch/PD) is 5 to 15 (mg/mmH 2 O).
  • Aspect 3 A filter according to aspects 1 or 2, wherein the adsorbent comprises activated carbon.
  • Aspect 4 4. The filter of any one of aspects 1-3, wherein the sheet is surface treated.
  • the filter of aspect 4, wherein the surface treatment is creping.
  • Aspect 6 A non-combustion heated flavor inhalation article comprising a filter according to any one of aspects 1-5.
  • Aspect 7 providing the sheet; and providing a tubular wrapper and a filter comprising the sheet disposed within the wrapper;
  • Aspect 8 The manufacturing method according to aspect 7, further comprising the step of subjecting the sheet to surface treatment.
  • Examples 1 to 4 A sheet containing pulp, polyester fibers, activated carbon and a binder was prepared.
  • a second filter shown in FIG. 1 was prepared according to a conventional method, in which the sheet was folded and packed in a wrapper. The ridgeline formed by folding was substantially parallel to the longitudinal direction of the filter.
  • the ventilation resistance of the filter was measured using a filter quality measuring instrument (product name: SODIMAX manufactured by SODIM). Specifically, the sample was covered with air-impermeable rubber to prevent air from flowing in from the sides of the sample, and the differential pressure (mmH 2 O) was measured as ventilation resistance. Table 1 shows the physical properties of each filter.
  • the non-combustion heating type flavor inhalation article shown in FIG. 1 was manufactured.
  • the tobacco member side end of the non-combustion heating type flavor inhalation article was inserted into the heating device shown in FIG.
  • the heater temperature was set to 295° C., and the tobacco member was heated by the heater.
  • a Cambridge filter manufactured by Borgwaldt KC Inc., CM-133
  • the sample was subjected to the conditions of smoke absorption capacity of 27.5 ml / second, smoke absorption time of 2 seconds / puff, smoke absorption frequency of 2 puffs / minute, 10 puffs automatic smoking was performed.
  • LM-1 manufactured by Borgwaldt KC Inc.
  • Nicotine and glycerin were analyzed by the following method. After the smoking test, the Cambridge filter was shaken in 10 mL of methanol (manufactured by Wako Pure Chemical Industries, Ltd., reagent special grade) to obtain an analysis sample. 1 ⁇ L of the obtained analysis sample was collected in a microsyringe and analyzed by gas chromatography mass spectrometry (GC-MSD manufactured by Agilent, GC: 7890A, MS: 5975C). Table 2 shows the results.
  • GC-MSD gas chromatography mass spectrometry
  • Formaldehyde, acetaldehyde, and acrolein among the carbonyl components were analyzed by the following method. After the smoking test, the Cambridge filter was immersed in the impinger collection liquid and shaken, and then the solid content was filtered with a membrane filter. Furthermore, a predetermined amount of the filtrate was added to the Trizma base solution and shaken to terminate the derivatization reaction. After the solution was filtered through a membrane filter again, it was subjected to HPLC-DAD to analyze the carbonyl component.
  • the method for analyzing the carbonyl component was disclosed in WO2004/026054 and CORESTA Recommended Method No. 96-Determination of Formaldehyde and Acetaldehyde in E-Vapour Product Aerosol February 2021. Table 2 shows the results. Also, FIG. 3 shows the relationship between Ch/PD and the amount of formaldehyde.
  • Non-combustion heating flavor suction system 10 non-combustion heating flavor suction article 1 tobacco member 3 cooling member 5 mouthpiece 51 first filter 52 second filter V ventilation 100 Non-combustion heating flavor suction system 30 Heating unit with heater

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

Ce filtre pour un article d'inhalation d'arôme à chauffage sans combustion comprend une feuille contenant un adsorbant. La quantité d'adsorbant par résistance à l'écoulement d'air (Ch/PD) du filtre est de préférence de 5 à 15 (mg/mm H2O).
PCT/JP2023/006749 2022-02-25 2023-02-24 Filtre pour article d'inhalation d'arôme à chauffage sans combustion WO2023163110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022027608 2022-02-25
JP2022-027608 2022-02-25

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Publication Number Publication Date
WO2023163110A1 true WO2023163110A1 (fr) 2023-08-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05211861A (ja) * 1991-09-13 1993-08-24 R J Reynolds Tobacco Co シガレット
JPH078254A (ja) * 1993-01-19 1995-01-13 Philip Morris Prod Inc カーボン充填ウエブフィルター芯及びセルロースアセテートトウ周囲を有する同心喫煙フィルター
JP2008518614A (ja) * 2004-11-02 2008-06-05 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 制御放出式香味料を含む電気加熱式シガレット
US20110277781A1 (en) * 2010-03-26 2011-11-17 Philip Morris Usa Inc. Methods for improving quality of mainstream smoke and multicomponent filters and smoking articles therefor
WO2021144872A1 (fr) * 2020-01-15 2021-07-22 日本たばこ産業株式会社 Segment de filtre pour inhalateur d'arôme de type à chauffage sans combustion, inhalateur d'arôme de type à chauffage sans combustion, et système d'inhalation d'arôme de type à chauffage sans combustion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05211861A (ja) * 1991-09-13 1993-08-24 R J Reynolds Tobacco Co シガレット
JPH078254A (ja) * 1993-01-19 1995-01-13 Philip Morris Prod Inc カーボン充填ウエブフィルター芯及びセルロースアセテートトウ周囲を有する同心喫煙フィルター
JP2008518614A (ja) * 2004-11-02 2008-06-05 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 制御放出式香味料を含む電気加熱式シガレット
US20110277781A1 (en) * 2010-03-26 2011-11-17 Philip Morris Usa Inc. Methods for improving quality of mainstream smoke and multicomponent filters and smoking articles therefor
WO2021144872A1 (fr) * 2020-01-15 2021-07-22 日本たばこ産業株式会社 Segment de filtre pour inhalateur d'arôme de type à chauffage sans combustion, inhalateur d'arôme de type à chauffage sans combustion, et système d'inhalation d'arôme de type à chauffage sans combustion

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