WO2020133647A1 - 一种降温嘴棒及发烟制品 - Google Patents

一种降温嘴棒及发烟制品 Download PDF

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Publication number
WO2020133647A1
WO2020133647A1 PCT/CN2019/075521 CN2019075521W WO2020133647A1 WO 2020133647 A1 WO2020133647 A1 WO 2020133647A1 CN 2019075521 W CN2019075521 W CN 2019075521W WO 2020133647 A1 WO2020133647 A1 WO 2020133647A1
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Prior art keywords
cooling
peg
flue gas
temperature
iqos
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PCT/CN2019/075521
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English (en)
French (fr)
Inventor
罗玮
钟科军
刘建福
谢兰英
秦亮生
杜文
易建华
尹新强
丁多
文建辉
谢国勇
Original Assignee
湖南中烟工业有限责任公司
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Application filed by 湖南中烟工业有限责任公司 filed Critical 湖南中烟工业有限责任公司
Priority to KR1020217023189A priority Critical patent/KR102653335B1/ko
Priority to JP2021533569A priority patent/JP7194285B2/ja
Priority to US17/418,219 priority patent/US20220079215A1/en
Priority to EP19903982.7A priority patent/EP3878290B1/en
Publication of WO2020133647A1 publication Critical patent/WO2020133647A1/zh

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    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter 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
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/066—Use of materials for tobacco smoke filters characterised by structural features in the form of foam or having cellular structure
    • 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
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • 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
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • 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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used

Definitions

  • the invention relates to a cooling nozzle stick and a smoking product, belonging to the field of smoking products.
  • the mainstream heating non-burning cigarettes on the market include Philip Morris' iQOS and British American Tobacco's glo.
  • Philip Morris' iQOS When the two cigarettes reach the atomization temperature under the heating condition of 250-350°C, the high temperature atomizes the smoke
  • the temperature that enters the mouth through the filter segment will be higher than the temperature at which ordinary cigarettes burn, resulting in excessive hotness of the inlet smoke.
  • the existing technology mainly uses a phase change cooling material to cool the longitudinally flowing high-temperature flue gas.
  • the material of the cooling section of iQOS is mainly pleated, pleated, aggregated and folded polylactic acid (PLA) sheets.
  • PLA polylactic acid
  • the phase change temperature-reducing material PLA sheet melts after contacting with high-temperature flue gas, which leads to blockage of the flue gas channel, affecting the material's temperature-reducing effect and even leading to a significant reduction in smoke.
  • one of the objects of the present invention is to provide a cooling nozzle stick to significantly reduce the temperature of the high-temperature flue gas inlet and improve the smoking experience; the second object of the present invention is to provide a smoking article.
  • a cooling nozzle rod including a cooling section, the cooling section is provided with a plurality of channels penetrating both ends of the cooling section, the inner surface of the channel is coated with a cooling material; the cooling material includes an inorganic phase change material, the inorganic
  • the phase change material includes at least one of Na 2 CO 3 .10H 2 O, CH 3 COONa. 3H 2 O, CaCl 2 .4H 2 O, and Na 2 SO 4 .10H 2 O.
  • the cooling flue gas After the cooling flue gas enters the cooling zone, it fully contacts with the cooling material and exchanges heat. The heat of the flue gas is transferred to the cooling material, and the temperature of the flue gas decreases.
  • the cooling zone is provided with channels that pass through both ends.
  • the suction resistance is small, which facilitates the passage of flue gas, and significantly reduces the adsorption of flue gas by the cooling rod.
  • the coating amount of the temperature-reducing material can be selected according to the temperature-reducing needs, and the factors such as the temperature-reducing effect, the effect of adsorbing the flue gas and the cost should be considered comprehensively.
  • the above-mentioned inorganic phase change materials are all phase change materials, which have the ability of cooling and absorbing water. When the flue gas passes through the cooling section, it fully contacts the cooling material, which can further improve the cooling effect and absorb the hot steam in the flue gas.
  • the cooling material further includes PEG.
  • PEG inorganic phase change materials
  • the PEG includes PEG-200, PEG-400, PEG-600, PEG-800, PEG-1000, PEG-1500, PEG-2000, PEG-4000, PEG-6000, PEG-8000, PEG-10000 , At least one of PEG-20000.
  • the PEG is at least one of PEG-200, PEG-400, PEG-600, PEG-800, PEG-1000, PEG-1500, PEG-2000, PEG-4000, PEG-6000, PEG-8000
  • the above-mentioned PEG is low molecular weight PEG or medium molecular weight PEG, which can be dissolved in absolute ethanol, making the production process such as coating easy; while PEG-10000, PEG-20000 and other high molecular weight PEG need to be anhydrous Ethanol is heated to about 60-70°C to dissolve it, and the lower solubility molecular weight PEG and the medium molecular weight PEG are low, which can easily lead to inconvenience in coating operations, large waste of ethanol solvent, and inconvenience to production.
  • the applicant also found that when using high molecular weight PEG, PEG and other raw materials are easy to adhere to the production equipment, which affects the normal operation of the equipment, and the labor cost of equipment cleaning needs to be increased. Therefore, the above low-molecular-weight PEG and medium-molecular-weight PEG can satisfactorily meet the requirements and help to obtain higher cost performance.
  • the mass ratio of the inorganic phase change material and the PEG in the cooling material is 1-2:1-5, further 1-2:1-3, optionally, 1:1, optionally, 2:1, optionally, 1:5, optionally, 2:5.
  • PEG can be used as a good binder, such as PEG-1000, PEG-1500, PEG-2000, PEG- 4000, etc., can adhere the inorganic phase change material to the inner surface of the channel more stably, and fully play the role of the inorganic phase change material.
  • the coating amount of the cooling material is 3-50 g/m 2 (dry weight). Further, the coating amount of the cooling material is 5-30 g/m 2 , preferably 15-30 g/m 2 .
  • the coating amount needs to reach 5g/m 2 to achieve the cooling effect, but the inorganic hydrated salt phase is used
  • the coating amount of the compound mixture only needs to reach 3g/m 2 to achieve a similar effect.
  • the flue gas temperature is equivalent to that of iQOS, and the total particle size of the flue gas The material reaches about 80% of the total particulate matter in iQOS flue gas.
  • the coating amount of the inorganic hydrated salt phase change material and the PEG compound mixture is 5 g/m 2 , it can play a better cooling effect, and its flue gas temperature is further lower than that of iQOS 6 At -7°C, the total particulate matter of flue gas can reach about 90% of the total particulate matter of iQOS flue gas, and the effect of lowering the temperature and lowering the flue gas can be achieved.
  • this application has obvious advantages in terms of the amount of cooling materials and the cooling effect, especially when the cooling materials contain both inorganic phase change materials and PEG, the advantages of this application More obvious.
  • the inlet temperature of the flue gas can be reduced by 9-90% relative to the inlet flue gas temperature of iQOS. 10°C; while using PEG alone as the cooling material, when the coating amount is 5g/m 2 , the flue gas inlet temperature is 6-7°C higher than the iQOS inlet flue gas temperature.
  • the channels are straight holes or irregular pores.
  • the cross section of the channel is one of circular and polygonal.
  • the cross section of the channel is irregular.
  • the number of the channels is multiple.
  • the cooling section is formed by a carrier repeatedly bending or twisting in a columnar space, the cooling material is coated on the surface of the carrier;
  • the carrier is paper, organic polymer film, non-woven fabric kind of.
  • the carrier is paper.
  • the paper is rectangular when unfolded, so that it can be easily formed, and it can also ensure that the cross-sectional areas of the channels in the length direction of the cooling section are basically the same after forming.
  • the basis weight of the carrier is 40-150 g/m 2 . Further, the total specific surface area of the several channels accounts for 10%-60% of the surface area of the carrier.
  • PEG1000, PEG-1500, PEG-2000, PEG-4000 and other medium molecular weight PEG can reduce the dosage of inorganic phase change materials to a certain extent, and can stabilize the inorganic phase change materials (generally fine particles) relatively stably Attached to the carrier, it can effectively prevent the inorganic phase change material from falling off the carrier during the repeated bending or twisting of the carrier, ensure that the cooling material is loaded with a predetermined quality of cooling material in the cooling section, and reduce the production difficulty of the cooling nozzle rod.
  • one or both surfaces of the paper have multiple concave-convex textures, preferably wrinkle-shaped textures. In this way, it can be ensured that the two ends of each channel are always in a connected state, and there is a flow of smoke through each channel, which can reduce the suction resistance, and can fully exert the cooling effect of the cooling material, while also reducing the particle phase of the paper stick on the smoke Adsorption.
  • the paper is one of cellulose paper, coated paper, forming paper, butter paper, and white cardboard.
  • the basis weight of the paper is 40-150 g/m 2 .
  • one side or both sides of the paper are coated with a cooling material.
  • the cooling section is formed by repeatedly bending the paper in a certain direction.
  • the cooling section is formed by repeatedly bending the paper irregularly. From the cross section, the direction of the paper is irregular.
  • the carrier of the present invention is preferably paper compared to existing cooling nozzles. Due to the poor thermal conductivity of the paper, the heat absorbed by the cooling material is not easily transferred to the suction end quickly, which can prevent burns to the smoker On the other hand, for heated non-burning cigarettes, whether it is center heating or surround heating, a large amount of water vapor will be generated when the first three mouths are smoked. The high temperature water vapor entering the oral cavity will condense and release a lot of heat, making the mouth ( (Tongue in particular) The sensation of hotness is significantly enhanced.
  • the paper cooling rod of the present invention has a good water vapor adsorption capacity, which can effectively absorb water vapor, enhance the taste of the first three mouth suctions, and enhance the suction experience; on the other hand, the cooling material coating After being placed on the paper, the adsorption capacity of the particulate matter such as tar in the corresponding part of the paper can be reduced. Therefore, the temperature-reducing and low-retention nozzle stick of the present invention has a very small adsorption amount of particulate matter in the flue gas, which is conducive to improving the smoking experience.
  • the cooling section is formed by bundling multiple cylinders, and the cooling material is coated on the inner surface and/or outer surface of the cylinder.
  • the cylinder is made of paper material or organic polymer material.
  • a filtering section is connected to one end of the cooling section.
  • the filtering section is preferably a vinegar fiber filter rod, and more preferably a special vinegar fiber filter rod with a low smoke trapping function.
  • the length of the filtering section is 5-10 mm, preferably 6-9 mm; further, the length of the cooling section is 12-50 mm, preferably 15-40 mm.
  • cooling section is wrapped with forming paper.
  • cooling nozzle bar is a round bar, and further, the circumference is 17-24.2 mm.
  • the cooling nozzle stick of the present invention is particularly suitable for heating non-burning cigarettes.
  • the temperature of the first three flue gases is higher, reaching 60°C or even 65°C.
  • the cooling nozzle rod of the present invention can satisfactorily satisfy the cooling temperature The requirement is to reduce the temperature of the inlet flue gas to around 42°C and improve the smoking experience.
  • a smoking article includes a cooling nozzle stick as described above and a smoking section connected with the cooling nozzle stick. Further, the length of the smoking section is 10-60 mm, generally 10-50 mm, preferably 10-15 mm, further preferably 11-13 mm.
  • the smoking section is a tobacco rod composed of treated shredded tobacco or sheets arranged in disorder or order.
  • inorganic phase change materials in cooling nozzles, wherein the inorganic phase change materials include Na 2 CO 3 ⁇ 10H 2 O, CH 3 COONa ⁇ 3H 2 O, CaCl 2 ⁇ 4H 2 O, Na 2 SO 4 ⁇ At least one of 10H 2 O.
  • the cooling section of the present invention has the characteristics of high temperature resistance (about 320°C), when the cigarette is designed, the cooling section can be directly connected to the smoking section, the cooling section will not melt and burn, and still maintain the original shape, so the design of the cigarette It can be simplified to a three-stage structure.
  • the existing iQOS cigarette branch is a four-stage cigarette branch structure design.
  • the smoke at the contact between the smoking section and the diversion section The temperature of the gas can reach about 200°C, and the effect of high temperature resistance of the cooling section of polylactic acid is poor (melting point 155-185°C). When it is directly connected to the smoke section, it will completely melt and cannot achieve the cooling effect.
  • the phase change enthalpy of inorganic phase change materials such as Na 2 CO 3 ⁇ 10H 2 O, CH 3 COONa ⁇ 3H 2 O, CaCl 2 ⁇ 4H 2 O, Na 2 SO 4 ⁇ 10H 2 O is large, and the phase change The cooling ability is strong.
  • the inorganic phase change material can absorb the heat of the flue gas to achieve a phase change temperature reduction of the flue gas.
  • the phase change material is coated on the paper. There is no need to worry about the melting of the phase change material and block the flue gas passage, ensuring a good smoking experience.
  • the cooling nozzle stick of the present invention has the advantages of ensuring the amount of smoke and reducing the temperature of the smoke entering the mouth, especially in the cooling section.
  • the outflow from the smoke section can significantly reduce the temperature of high-temperature smoke before entering the mouth.
  • the amount of smoke is sufficient and the temperature is suitable, thereby improving the comfort and satisfaction of smoke suction; it can also solve the existing heating and non-burning cigarettes The problem of excessive water vapor, small amount of smoke, and bad taste during the first three mouths.
  • FIG. 1 is a schematic structural diagram of a cigarette of the present invention.
  • FIG. 2 is a schematic perspective cross-sectional view (exploded view) of a cigarette of the present invention.
  • FIG. 3 is a partially enlarged perspective view of the cooling rod and the smoking section in FIG. 1.
  • FIG. 4 is a partially enlarged perspective cross-sectional view of the cooling rod and the smoking section in FIG. 1.
  • FIG. 5 is a schematic structural view (cross-sectional view) of a cooling section of Example 17 of the present invention.
  • the smoking article in this embodiment is a heated non-burning cigarette, which includes a filter section 1, a cooling section 2 and a smoking section 3 connected in sequence, the filter section is composed of a cooling and a low smoke interception It is composed of special vinegar fiber filter rods.
  • the cooling section is formed by wrapping a cooling rod with forming paper 4, and the cooling rod is mainly formed of paper coated with a phase change cooling material.
  • the cooling rod has a plurality of channels 6 penetrating both ends of the cooling rod, and the total specific surface area of the plurality of channels accounts for 20%-30% of the surface area of the cooling paper.
  • the paper has a strong ability to absorb moisture, but a cellulose paper with a weak tar absorption ability.
  • the basis weight of the paper is 80g/m 2 .
  • the cooling material is CH 3 COONa ⁇ 3H 2 O.
  • the coating amount of the temperature-reducing material is 5 g/m 2 .
  • the flue gas After the flue gas enters the cooling section, it is in full contact with the phase change cooling material, which improves the cooling effect of the flue gas, and also facilitates the rapid and smooth passage of the flue gas generated in the tobacco branch section.
  • the length of the filtering section is 7 mm, the length of the cooling section is 26 mm, and the length of the smoking section is 12 mm.
  • the cooling section designed by the present invention was used to replace the cooling section of the pleated PLA film in iQOS cigarettes, a suction test was conducted, and the temperature was monitored with a thermocouple.
  • the maximum flue gas temperature at the inlet was 60°C, which was lower than that of iQOS
  • the flue gas temperature is reduced by 1°C; meanwhile, the total particulate matter in the flue gas is 12.0 mg/branch, which is 3.0 mg/branch lower than the total particulate matter in the iQOS flue gas. Achieve the effect of lowering the temperature and lowering the flue gas (see Table 1).
  • Example 1 was repeated, and only the coating amount of the temperature-lowering material was increased to 10 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 50°C, which is 11°C lower than the inlet flue gas temperature of iQOS;
  • the total particulate matter is 14.5mg/branch, which is only 0.5mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the amount of smoke in the inlet flue gas has been increased to a certain extent, basically achieving the effect of cooling and low trapped flue gas (see Table 1).
  • Example 1 was repeated, and only the coating amount of the temperature-reducing material was increased to 20 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 43°C, which is 18°C lower than that of the iQOS inlet flue gas.
  • the total particulate matter is 15.2mg/branch, which is 0.2mg/branch higher than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to Na 2 CO 3 ⁇ 10H 2 O, and the coating amount of the phase-change material was increased to 20 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 48°C, which is 13°C lower than that of the iQOS inlet flue gas.
  • the total particulate matter is 14.4mg/branch, which is 0.6mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to CaCl 2 ⁇ 4H 2 O, and the coating amount of the phase-change material was increased to 20 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 49°C, which is 12°C lower than the inlet flue gas temperature of iQOS.
  • the total particulate matter is 14.5mg/branch, which is 0.5mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to Na 2 SO 4 ⁇ 10H 2 O, and the coating amount of the phase-change material was increased to 20 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 50°C, which is 11°C lower than the inlet flue gas temperature of iQOS;
  • the total particulate matter is 14.3mg/branch, which is 0.7mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 Repeat Example 1 and change the cooling material to a compound mixture of CaCl 2 ⁇ 4H 2 O and Na 2 SO 4 ⁇ 10H 2 O, the weight ratio of the two is 2:1, and the coating amount of the cooling material is 25 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 45°C, which is 16°C lower than the inlet flue gas temperature at iQOS.
  • the total particulate matter is 14.6mg/branch, which is 0.4mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CH 3 COONa ⁇ 3H 2 O and PEG4000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 3 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 59°C, which is 2°C lower than the inlet flue gas temperature of iQOS;
  • the total particulate matter is 12.2mg/branch, which is 2.8mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the amount of smoke in the inlet flue gas has been increased to a certain extent, which basically achieves the effect of cooling and low flue gas interception (see table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CH 3 COONa ⁇ 3H 2 O, PEG600 and PEG4000, the weight ratio of the three was 1:2:2, and the coating amount of the temperature-reducing material was 5 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 51°C, which is 10°C lower than that of iQOS.
  • the total particulate matter is 14.5mg/branch, which is 0.5mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CH 3 COONa ⁇ 3H 2 O and PEG2000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 5 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 53°C, which is 8°C lower than the inlet flue gas temperature at iQOS.
  • the total particulate matter is 14.2mg/branch, which is 0.8mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CH 3 COONa ⁇ 3H 2 O and PEG2000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 20 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 41°C, which is 20°C lower than the inlet flue gas temperature at iQOS.
  • the total particulate matter is 15.3mg/branch, which is 0.3mg/branch higher than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to the compound mixture of CaCl 2 ⁇ 4H 2 O and PEG2000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 20 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 45°C, which is 16°C lower than the inlet flue gas temperature at iQOS.
  • the total particulate matter is 15.1mg/branch, which is 0.1mg/branch higher than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of Na 2 SO 4 ⁇ 10H 2 O and PEG2000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 20 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 46°C, which is 15°C lower than the inlet flue gas temperature of iQOS.
  • the total particulate matter is 14.8mg/branch, which is 0.2mg/branch lower than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CH 3 COONa ⁇ 3H 2 O and PEG6000, the weight ratio of the two was 2:1, and the coating amount of the temperature-reducing material was 25 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 40°C, which is 21°C lower than the inlet flue gas temperature of iQOS.
  • the total particulate matter is 15.1mg/branch, which is 0.1mg/branch higher than the total particulate matter in the iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 Repeating Example 1, changing the cooling material to a compound mixture of Na 2 CO 3 ⁇ 10H 2 O, PEG1000 and PEG8000, the weight ratio of the three is 2:2:1, and the coating amount of the cooling material is 20g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 45°C, which is 16°C lower than the inlet flue gas temperature at iQOS.
  • the total particulate matter is 14.7mg/branch, which is 0.3mg/branch lower than the total particulate matter in the iQOS flue gas, which achieves the effect of cooling and low retention.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and the temperature-reducing material was changed to a compound mixture of CaCl 2 ⁇ 4H 2 O and PEG6000, the weight ratio of the two was 1:1, and the coating amount of the temperature-reducing material was 40 g/m 2 .
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 44°C, which is 17°C lower than the inlet flue gas temperature of iQOS;
  • the total particulate matter is 15.2mg/branch, which is 0.2mg/branch higher than the total particulate matter in iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 11 is repeated, only the cooling section is changed to a molding paper 4 wrapped with a plurality of hollow cylindrical rods 5 to form, the surface of the cylindrical rod is coated with a cooling material, its outer diameter is 0.4mm, and the flue gas channel is mainly composed of cylindrical rods The internal through hole and the gap between the cylindrical rod constitute (see Figure 5).
  • the cooling section designed by the present invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 37°C, which is 24°C lower than that of the iQOS inlet flue gas.
  • the total particulate matter is 15.8mg/branch, which is 0.8mg/branch higher than the total particulate matter in iQOS flue gas, and the effect of cooling and low retention is achieved.
  • the smoked sensory quality of smoke was significantly improved (see Table 1).
  • Example 1 was repeated, and only the coating amount of the temperature-reducing material was reduced to 4 g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 64°C, which is 3°C higher than that of the iQOS inlet flue gas.
  • the total particulate matter of the gas is reduced to 8.2mg/branch, which is 6.8mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the smoke volume of the inlet flue gas is significantly reduced, and the effect of cooling and low flue gas interception cannot be achieved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to Na 2 CO 3 ⁇ 10H 2 O.
  • the coating amount of the temperature-reducing material is 4g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 65°C, which is 4°C higher than the inlet flue gas temperature at iQOS.
  • the total particulate matter of the gas is reduced to 7.5mg/branch, which is 7.5mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the amount of smoke in the inlet flue gas is significantly reduced, and the effect of cooling and low flue gas interception cannot be achieved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to CaCl 2 ⁇ 4H 2 O.
  • the coating amount of the temperature-reducing material is 4g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 66°C, which is 5°C higher than the inlet flue gas temperature of iQOS;
  • the total particulate matter of the gas is reduced to 7.6mg/branch, which is 7.4mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the smoke volume of the inlet flue gas is significantly reduced, and the effect of cooling and low flue gas interception cannot be achieved (see Table 1).
  • Example 1 was repeated, only the temperature-reducing material was changed to Na 2 SO 4 ⁇ 10H 2 O.
  • the coating amount of the temperature-reducing material is 4g/m 2 .
  • the cooling section designed by the invention replaces the cooling section of the pleated PLA film in iQOS cigarettes.
  • the maximum flue gas temperature at the inlet is 65°C, which is 4°C higher than the inlet flue gas temperature at iQOS.
  • the total particulate matter of the gas is reduced to 7.3mg/branch, which is 7.7mg/branch lower than the total particulate matter in the iQOS flue gas.
  • the amount of smoke in the inlet flue gas is significantly reduced, and the effect of cooling and low flue gas interception cannot be achieved Table 1).
  • Table 1 The maximum flue gas temperature, total particulate matter and smoke volume at the entrance of heated unburned cigarettes
  • Example 13 46 14.8 Big Example 14 40 15.1 Big Example 15 45 14.7 Big Example 16 44 15.2 Big Example 17 37 15.8 Big Comparative Example 1 64 8.2 small Comparative Example 2 65 7.5 small Comparative Example 3 66 7.6 small Comparative Example 4 65 7.3 small

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Abstract

一种降温嘴棒及发烟制品。该降温嘴棒，包括降温段，所述降温段内设有若干贯通降温段两端的通道，所述通道的内表面涂覆有降温材料；所述降温材料包括无机相变材料和PEG，所述无机相变材料包括Na 2CO 3·10H 2O、CH 3COONa·3H 2O、CaCl 2·4H 2O、Na 2SO 4·10H 2O中的至少一种。该降温嘴棒具有保证烟气烟雾量和降低进入口腔的烟气温度等优点，尤其是降温段，通过降温棒结构、降温材料种类与用量的组合设计，既可以让烟气易于快速流畅的由发烟段流出，又可以显著降低高温烟气在进入口腔之前的温度，烟雾量足且温度适宜，从而提升烟气抽吸的舒适感和满足感；还可解决现有加热不燃烧卷烟前三口抽吸时水汽过多、烟雾量小、口感不好的问题。

Description

一种降温嘴棒及发烟制品 技术领域
本发明涉及一种降温嘴棒及发烟制品，属于发烟制品领域。
背景技术
全球新型烟草制品市场快速增长、迅猛发展。2010年新型烟草制品全球销售额仅10.04亿美元，2017年增至177.50亿美元，年均增长50.7％。其中，电子烟2010年全球销售额仅10.03亿美元，2017年增至114.41亿美元，年均增长41.6％；加热不燃烧卷烟发展势头更为强劲，2013年全球销售额仅0.06亿美元，2017年已经增至63.09亿美元，年均增长469.5％。新型烟草制品消费群体，已经颇具规模。2017年全球消费群体4700万人，电子烟消费者超过3700万人，加热不燃烧卷烟消费者约1000万人。其中，菲莫国际iQOS已经扩张蔓延至全球43个国家，拥有880万消费群体。
2010—2017年，传统卷烟全球产量年均下降1.5％，与新型烟草制品销售额年均50.7％的高速增长形成鲜明对比。有数据分析，未来五年新型烟草制品全球消费人群将达到5500万人，其中相当一部分消费群体转化自传统卷烟消费者；据菲莫国际统计，iQOS的消费者中，有67％以上由传统卷烟消费者转化而来，且大部分已不再使用传统卷烟。消费群体转移分化加剧了传统烟草与新型烟草“存量分割”的市场局面。据欧睿国际测算，未来五年全球传统卷烟销量仍将以1—2％的速度逐年递减，销售额也难以通过价格上涨来维持；传统卷烟虽然在局部市场仍有可能小幅增长，但在全球范围内，增长已近乎极限。
目前，市售主流的加热不燃烧卷烟有菲莫公司的iQOS与英美烟草的glo两种产品，当两种烟支在250-350℃的加热条件下达到雾化温度后，高温雾化烟气通过滤嘴段进入口腔中的温度会高于普通卷烟燃烧的温度，从而导致入口烟气过烫，在抽吸体验与抽吸感受等方面与传统卷烟尚存在较大差距。
现有技术主要是通过相变降温材料对纵向流动的高温烟气进行降温处理，如iQOS的降温段材料主要是皱褶、打褶、聚集和折叠的聚乳酸(PLA)薄片，由于受嘴棒长度及相变降温材料的限制，同时烟气流速也比较快，导致材料降温有一定困难；过热烟气通过嘴棒时的横向传热，使得消费者抽吸时有烫嘴唇的感觉。此外，相变降温材料PLA薄片接触高温烟气后出现熔融现象，导致烟气通道堵塞，影响材料的降温效果甚至会导致烟雾量显著降低。
发明内容
针对现有技术的不足，本发明的目的之一在于提供一种降温嘴棒，以显著降低高温烟气入口温度，改善抽吸体验；本发明的目的之二在于提供一种发烟制品。
为了解决上述技术问题，本发明的技术方案如下：
一种降温嘴棒，包括降温段，所述降温段内设有若干贯通降温段两端的通道，所述通道的内表面涂覆有降温材料；所述降温材料包括无机相变材料，所述无机相变材料包括Na 2CO 3·10H 2O、CH 3COONa·3H 2O、CaCl 2·4H 2O、Na 2SO 4·10H 2O中的至少一种。
采用这样的结构设计，待降温烟气进入降温段后与降温材料充分接触，换热，烟气的热量转移给降温材料，烟气温度降低；另外，降温段内设有贯通其两端的通道，吸阻小，便于烟气通过，显著降低降温棒对烟气的吸附。降温材料的涂覆量可根据降温需要选用，综合考虑降温效果、对烟气吸附效果与成本等因素。上述无机相变材料均为相变材料，具有降温能力与吸水能力，烟气通过降温段时，与降温材料充分接触，可进一步提升降温效果，吸附烟气中的灼热水汽。
进一步地，所述降温材料还包括PEG。如此，PEG与无机相变材料复配形成降温材料，充分发挥各自优势，获得良好的降温效果。
进一步地，所述PEG包括PEG-200、PEG-400、PEG-600、PEG-800、PEG-1000、PEG-1500、PEG-2000、PEG-4000、PEG-6000、PEG-8000、PEG-10000、PEG-20000中的至少一种。
进一步地，所述PEG为PEG-200、PEG-400、PEG-600、PEG-800、PEG-1000、PEG-1500、PEG-2000、PEG-4000、PEG-6000、PEG-8000中的至少一种，上述PEG为低分子量PEG或中等分子量PEG，能较好地溶解于无水乙醇中，使得涂覆等制作工序容易进行；而PEG-10000、PEG-20000等高分子量的PEG需要将无水乙醇加热到60-70℃左右才能将其溶解，且溶解度较低分子量PEG与中等分子量PEG低，容易导致涂覆作业不便，乙醇溶剂浪费较大，给生产带来不便。申请人还研究发现，采用高分子量PEG时，PEG等原料容易黏附在生产设备中，影响设备正常运行，需增加设备清洗的人工成本。因此，采用上述低分子量PEG、中等分子量PEG即可较好地满足要求，有利于获得更高的性价比。
进一步地，所述降温材料中无机相变材料与PEG的质量比为1-2:1-5，进一步为1-2:1-3，可选地，为1:1，可选地，为2:1，可选地，为1:5，可选地，为2:5。通过PEG种类选择及含量的控制，一方面，PEG自身可起到相变降温效果，另一方面，PEG可作为良好的粘合剂，如PEG-1000、PEG-1500、PEG-2000、PEG-4000等，可将无机相变材料更为稳定地粘附于通道的内表面，充分发挥无机相变材料的作用。
进一步地，所述降温材料的涂覆量为3-50g/m 2(干重)，进一步地，所述降温材料的涂覆量为5-30g/m 2，优选为15-30g/m 2。
经申请人反复试验后发现，降温材料由无机水合盐类相变材料中的一种或几种组合时，涂覆量需要达到5g/m 2才能起到降温效果，但使用无机水合盐类相变材料与PEG复配混合物进行涂覆时，复配混合物的涂覆量只需达到3g/m 2就能达到类似的效果，其烟气温度与iQOS的烟气温度相当，烟气总粒相物达到iQOS烟气中总粒相物的80％左右。
进一步地，当无机水合盐类相变材料与PEG复配混合物的涂覆量为5g/m 2时，可起到更好的降 温效果，其烟气温度较iQOS的烟气温度进一步地降低6-7℃，烟气总粒相物可达到iQOS烟气总粒相物的90％左右，达到降温低截留烟气的效果。
另外，与申请人先前申请的专利CN2018109704836、CN2018115312894相比，本申请在降温材料用量、降温效果等方面均具有明显优势，尤其在降温材料中同时含有无机相变材料和PEG时，本申请的优势更为明显。例如，本申请中采用CH 3COONa·3H 2O和PEG的复配混合物作为降温材料时，涂覆量为5g/m 2时，可使得烟气入口温度相对iQOS的入口烟气温度降低9-10℃；而单独以PEG作为降温材料，涂覆量为5g/m 2时，烟气入口温度较iQOS的入口烟气温度高6-7℃。
可选地，所述通道为直通孔或不规则孔隙。
可选地，所述通道的横截面为圆形、多边形中的一种。
可选地，所述通道的横截面为不规则状。
进一步地，所述通道的数量为多个。
在本发明的一些实施例中，所述降温段由载体在柱状空间内反复弯曲或曲折形成，所述降温材料涂覆于载体表面；所述载体为纸张、有机聚合物薄膜、无纺布中的一种。进一步地，优选载体为纸张。进一步地，所述纸张展开时呈矩形，如此，可方便成型，也可保证成型后，降温段长度方向各部分的通道横截面积基本一致。进一步地，载体的定量为40-150g/m 2。进一步地，所述若干通道的总比表面积占载体表面积的10％-60％。
PEG1000、PEG-1500、PEG-2000、PEG-4000等中等分子量PEG的添加，在一定程度上可降低无机相变材料的用量，而且可将无机相变材料(一般为细小颗粒物)较为稳定地粘附在载体上，有效防止无机相变材料在载体的反复弯曲或曲折过程中从载体上脱落，保证降温段内负载有预设质量的降温材料，降低降温嘴棒的生产难度。
进一步地，所述纸张的一个或两个表面具有多条凹凸纹路，优选为褶皱形纹路。如此，可保证各通道的两端始终处于连通状态，各通道有烟气流过，既可降低吸阻，又可充分发挥降温材料的降温作用，同时还能降低纸棒对烟气中粒相物的吸附。
进一步地，所述纸张为纤维素纸、铜版纸、成型纸、牛油纸、白卡纸中的一种，优选地，纸张的定量为40-150g/m 2。这几种纸张对烟气吸附能力较低，可降低烟气损失，提升抽吸体验，尤其适用于加热不燃烧卷烟。
进一步地，所述纸张的一面或两面涂覆有降温材料。
在本发明的一些实施例中，所述降温段由纸张沿某一方向反复曲折而成。
在本发明的一些实施例中，所述降温段由纸张无规则地反复弯曲而成，从其横截面看，纸张的走向为无规则状。
在上述实施例中，相比已有的降温嘴棒，本发明的载体优选是纸张，由于纸张的导热能力较差， 降温材料吸收的热量不易快速传递到抽吸端，可防止灼伤抽吸者；另一方面，对于加热不燃烧卷烟，无论是中心加热还是包围加热方式，前三口抽吸时均会产生大量的水蒸气，高温的水蒸气进入口腔冷凝会释放大量的热量，使得口腔的(特别是舌头)烫感明显增强，本发明的纸质降温棒具有较好的水汽吸附能力，可有效吸附水汽，提升前三口抽吸的口感，提升抽吸体验；再一方面，降温材料涂覆于纸张上后，可降低纸张相应部分对焦油等粒相物的吸附能力，故本发明的降温低截留嘴棒对烟气中粒相物的吸附量极小，有利于提升抽吸体验。
在本发明的一些实施例中，所述降温段由多个圆筒捆扎而成，所述降温材料涂覆于圆筒的内表面和/或外表面。可选地，所述圆筒由纸质材料或有机聚合物材料制成。
进一步地，降温段一端连接有过滤段。
所述过滤段优选为醋纤滤棒，进一步优选为具有低烟气截留功能的特种醋纤滤棒。
进一步地，所述过滤段的长度为5-10mm，优选为6-9mm；进一步地，降温段的长度为12-50mm，优选为15-40mm。
进一步地，所述降温段外包裹有成型纸。
进一步地，所述降温嘴棒为圆棒，进一步地，周长为17-24.2mm。
本发明的降温嘴棒尤其适用于加热不燃烧卷烟。一般地，对于中心加热式加热不燃烧卷烟和包围式加热不燃烧卷烟，前三口的烟气温度较高，达到60℃甚至65℃以上，通过本发明的降温嘴棒可很好地满足其降温要求，使得入口烟气温度降低至42℃左右，提升抽吸体验。
一种发烟制品，包括如上所述的降温嘴棒和与降温嘴棒连接的发烟段。进一步地，所述发烟段的长度为10-60mm，一般为10-50mm，优选为10-15mm，进一步优选为11-13mm。
进一步地，发烟段为经过处理的烟丝或薄片无序或有序地排列组成的烟条。
无机相变材料在降温嘴棒中的应用，其中，所述无机相变材料包括Na 2CO 3·10H 2O、CH 3COONa·3H 2O、CaCl 2·4H 2O、Na 2SO 4·10H 2O中的至少一种。
由于本发明的降温段具有耐高温的特点(约320℃)，使得烟支设计时候，降温段能够与发烟段直接相连，降温段不会融化与烧毁，依然保持原形状，因而烟支设计可以简化为三段式结构，现有iQOS烟支是四段式烟支结构设计，在发烟段与降温段中间设置有耐高温的导流段，发烟段与导流段接触处的烟气温度可达到200℃左右，而聚乳酸降温段的耐高温效果差(熔点155-185℃)，直接与发烟段相连接会发生完全熔化现象，不能起到降温的效果。
本发明中，Na 2CO 3·10H 2O、CH 3COONa·3H 2O、CaCl 2·4H 2O、Na 2SO 4·10H 2O等无机相变材料的相变焓较大，相变降温能力较强，在与发烟段温度为200℃左右的高温烟气接触时，上述无机相变材料可吸收烟气热量实现对烟气的相变降温，相变材料涂覆于纸张上，无需担心相变材料的熔化而堵塞烟气通路，保证良好的抽吸体验。
本发明的降温嘴棒具有保证烟气烟雾量和降低进入口腔的烟气温度等优点，尤其是降温段，通过降温棒结构、降温材料种类与用量的组合设计，既可以让烟气易于快速流畅的由发烟段流出，又可以显著降低高温烟气在进入口腔之前的温度，烟雾量足且温度适宜，从而提升烟气抽吸的舒适感和满足感；还可解决现有加热不燃烧卷烟前三口抽吸时水汽过多、烟雾量小、口感不好的问题。
附图说明
图1为本发明的一种卷烟的结构示意图。
图2为本发明的一种卷烟的立体剖面示意图(爆炸图)。
图3为图1中降温棒与发烟段局部放大立体图。
图4为图1中降温棒与发烟段局部放大立体剖面图。
图5为本发明实施例17降温段的结构示意图(横截面图)。
具体实施方式
以下将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。为叙述方便，下文中如出现“上”、“下”、“左”、“右”字样，仅表示与附图本身的上、下、左、右方向一致，并不对结构起限定作用。
实施例1
如图1所示，本实施例中的发烟制品为加热不燃烧卷烟，包括依次连接的过滤段1、降温段2和发烟段3，所述过滤段由具有降温和低烟气截留的特种醋纤滤棒组成，所述降温段由成型纸4包裹降温棒成型而成，降温棒主要由涂布有相变降温材料的纸张成型而成。
其中，所述降温棒内具有多个贯通降温棒两端的通道6，所述多个通道的总比表面积占降温纸表面积的20％-30％。
所述纸张对水分吸收能力较强，但对焦油吸附能力较弱的纤维素纸。所述纸张的定量为80g/m 2。
所述降温材料为CH 3COONa·3H 2O。所述降温材料的涂覆量为5g/m 2。
烟气进入降温段后，与相变降温材料充分接触，提高烟气降温效果，同时也方便烟支段产生的烟气快速、顺畅通过。
所述过滤段的长度为7mm，降温段的长度为26mm，发烟段的长度为12mm。
经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，进行抽吸试验，并用热电偶监测温度，入口的最高烟气温度为60℃，较iQOS的入口烟气温度降低1℃；同时烟气中的总粒相物为12.0mg/支，较iQOS烟气中的总粒相物降低了3.0mg/支，入口烟气的烟雾量有一定提高，基本达到降温低截留烟气的效果(参见表1)。
实施例2
重复实施例1，仅将降温材料的涂覆量增至10g/m 2。经对比研究发现，采用本发明设计的降温段 替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为50℃，较iQOS的入口烟气温度降低11℃；同时烟气中的总粒相物为14.5mg/支，较iQOS烟气中的总粒相物只降低了0.5mg/支，入口烟气的烟雾量有一定提高，基本达到降温低截留烟气的效果(参见表1)。
实施例3
重复实施例1，仅将降温材料的涂覆量增至20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为43℃，较iQOS的入口烟气温度降低18℃；同时烟气中的总粒相物为15.2mg/支，较iQOS烟气中的总粒相物提高了0.2mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例4
重复实施例1，仅将降温材料改为Na 2CO 3·10H 2O，相变材料的涂覆量增至20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为48℃，较iQOS的入口烟气温度降低13℃；同时烟气中的总粒相物为14.4mg/支，较iQOS烟气中的总粒相物降低了0.6mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例5
重复实施例1，仅将降温材料改为CaCl 2·4H 2O，相变材料的涂覆量增至20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为49℃，较iQOS的入口烟气温度降低12℃；同时烟气中的总粒相物为14.5mg/支，较iQOS烟气中的总粒相物降低了0.5mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例6
重复实施例1，仅将降温材料改为Na 2SO 4·10H 2O，相变材料的涂覆量增至20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为50℃，较iQOS的入口烟气温度降低11℃；同时烟气中的总粒相物为14.3mg/支，较iQOS烟气中的总粒相物降低了0.7mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例7
重复实施例1，将降温材料改为CaCl 2·4H 2O与Na 2SO 4·10H 2O的复配混合物，两者的重量比为2:1，降温材料的涂覆量为25g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为45℃，较iQOS的入口烟气温度降低16℃；同时烟气中的总粒相物为14.6mg/支，较iQOS烟气中的总粒相物降低了0.4mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例8
重复实施例1，将降温材料改为CH 3COONa·3H 2O、PEG4000的复配混合物，两者的重量比为1:1， 降温材料的涂覆量为3g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为59℃，较iQOS的入口烟气温度降低2℃；同时烟气中的总粒相物为12.2mg/支，较iQOS烟气中的总粒相物降低了2.8mg/支，入口烟气的烟雾量有一定提高，基本达到降温低截留烟气的效果(参见表1)。
实施例9
重复实施例1，将降温材料改为CH 3COONa·3H 2O、PEG600与PEG4000的复配混合物，三者的重量比为1:2:2，降温材料的涂覆量为5g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为51℃，较iQOS的入口烟气温度降低10℃；同时烟气中的总粒相物为14.5mg/支，较iQOS烟气中的总粒相物降低了0.5mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例10
重复实施例1，将降温材料改为CH 3COONa·3H 2O与PEG2000的复配混合物，两者的重量比为1:1，降温材料的涂覆量为5g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为53℃，较iQOS的入口烟气温度降低8℃；同时烟气中的总粒相物为14.2mg/支，较iQOS烟气中的总粒相物降低了0.8mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例11
重复实施例1，将降温材料改为CH 3COONa·3H 2O与PEG2000的复配混合物，两者的重量比为1:1，降温材料的涂覆量为20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为41℃，较iQOS的入口烟气温度降低20℃；同时烟气中的总粒相物为15.3mg/支，较iQOS烟气中的总粒相物提高了0.3mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例12
重复实施例1，将降温材料改为CaCl 2·4H 2O与PEG2000的复配混合物，两者的重量比为1:1，降温材料的涂覆量为20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为45℃，较iQOS的入口烟气温度降低16℃；同时烟气中的总粒相物为15.1mg/支，较iQOS烟气中的总粒相物提高了0.1mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例13
重复实施例1，将降温材料改为Na 2SO 4·10H 2O与PEG2000的复配混合物，两者的重量比为1:1，降温材料的涂覆量为20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶 PLA薄膜降温段，入口的最高烟气温度为46℃，较iQOS的入口烟气温度降低15℃；同时烟气中的总粒相物为14.8mg/支，较iQOS烟气中的总粒相物降低了0.2mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例14
重复实施例1，将降温材料改为CH 3COONa·3H 2O与PEG6000的复配混合物，两者的重量比为2:1，降温材料的涂覆量为25g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为40℃，较iQOS的入口烟气温度降低21℃；同时烟气中的总粒相物为15.1mg/支，较iQOS烟气中的总粒相物提高了0.1mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例15
重复实施例1，将降温材料改为Na 2CO 3·10H 2O、PEG1000、PEG8000的复配混合物，三者的重量比为2:2:1，降温材料的涂覆量为20g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为45℃，较iQOS的入口烟气温度降低16℃；同时烟气中的总粒相物为14.7mg/支，较iQOS烟气中的总粒相物降低了0.3mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例16
重复实施例1，将降温材料改为CaCl 2·4H 2O、PEG6000的复配混合物，两者的重量比为1:1，降温材料的涂覆量为40g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为44℃，较iQOS的入口烟气温度降低17℃；同时烟气中的总粒相物为15.2mg/支，较iQOS烟气中的总粒相物提高了0.2mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
实施例17
重复实施例11，仅将降温段改为由成型纸4包裹多根空心圆柱棒5成型而成，圆柱棒的表面涂布有降温材料，其外径为0.4mm，烟气通道主要由圆柱棒内的通孔及圆柱棒之间的间隙构成(见图5)。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为37℃，较iQOS的入口烟气温度降低24℃；同时烟气中的总粒相物为15.8mg/支，较iQOS烟气中的总粒相物提高了0.8mg/支，达到了降温低截留的效果。烟气的抽吸感官质量得到显著改善(参见表1)。
对比例1
重复实施例1，仅将降温材料的涂覆量降为4g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为64℃，较iQOS的入口烟气温度 上升3℃；同时烟气中的总粒相物降至8.2mg/支，较iQOS烟气中的总粒相物降低了6.8mg/支，入口烟气的烟雾量明显降低，达不到降温低截留烟气的效果(参见表1)。
对比例2
重复实施例1，仅将降温材料改为Na 2CO 3·10H 2O。所述降温材料的涂覆量为4g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为65℃，较iQOS的入口烟气温度上升4℃；同时烟气中的总粒相物降至7.5mg/支，较iQOS烟气中的总粒相物降低了7.5mg/支，入口烟气的烟雾量明显降低，达不到降温低截留烟气的效果(参见表1)。
对比例3
重复实施例1，仅将降温材料改为CaCl 2·4H 2O。所述降温材料的涂覆量为4g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为66℃，较iQOS的入口烟气温度上升5℃；同时烟气中的总粒相物降至7.6mg/支，较iQOS烟气中的总粒相物降低了7.4mg/支，入口烟气的烟雾量明显降低，达不到降温低截留烟气的效果(参见表1)。
对比例4
重复实施例1，仅将降温材料改为Na 2SO 4·10H 2O。所述降温材料的涂覆量为4g/m 2。经对比研究发现，采用本发明设计的降温段替代iQOS烟支中的皱褶PLA薄膜降温段，入口的最高烟气温度为65℃，较iQOS的入口烟气温度上升4℃；同时烟气中的总粒相物降至7.3mg/支，较iQOS烟气中的总粒相物降低了7.7mg/支，入口烟气的烟雾量明显降低，达不到降温低截留烟气的效果(参见表1)。
表1加热不燃烧卷烟入口最高烟气温度、总粒相物和烟雾量
样品 入口最高烟气温度(℃) 总粒相物(mg/支) 烟雾量
iQOS对照 61 15.0 大
实施例1 60 12.0 较大
实施例2 50 14.5 大
实施例3 43 15.2 大
实施例4 48 14.4 大
实施例5 49 14.5 大
实施例6 50 14.3 大
实施例7 45 14.6 大
实施例8 59 12.2 较大
实施例9 51 14.5 大
实施例10 53 14.2 大
实施例11 41 15.3 大
实施例12 45 15.1 大
实施例13 46 14.8 大
实施例14 40 15.1 大
实施例15 45 14.7 大
实施例16 44 15.2 大
实施例17 37 15.8 大
对比例1 64 8.2 小
对比例2 65 7.5 小
对比例3 66 7.6 小
对比例4 65 7.3 小
上述实施例阐明的内容应当理解为这些实施例仅用于更清楚地说明本发明，而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落入本申请所附权利要求所限定的范围。

Claims (10)

  1. 一种降温嘴棒，包括降温段，所述降温段内设有若干贯通降温段两端的通道，所述通道的内表面涂覆有降温材料；其特征在于，所述降温材料包括无机相变材料，所述无机相变材料包括Na 2CO 3·10H 2O、CH 3COONa·3H 2O、CaCl 2·4H 2O、Na 2SO 4·10H 2O中的至少一种。
  2. 根据权利要求1所述的降温嘴棒，其特征在于，所述降温材料还包括PEG。
  3. 根据权利要求2所述的降温嘴棒，其特征在于，所述PEG包括PEG-200、PEG-400、PEG-600、PEG-800、PEG-1000、PEG-1500、PEG-2000、PEG-4000、PEG-6000、PEG-8000、PEG-10000、PEG-20000中的至少一种。
  4. 根据权利要求2所述的降温嘴棒，其特征在于，所述PEG为PEG-200、PEG-400、PEG-600、PEG-800、PEG-1000、PEG-1500、PEG-2000、PEG-4000、PEG-6000、PEG-8000中的至少一种。
  5. 根据权利要求2-4任一项所述的降温嘴棒，其特征在于，所述降温材料中无机相变材料与PEG的质量比为1-2:1-5。
  6. 根据权利要求1-4任一项所述的降温嘴棒，其特征在于，所述降温材料的涂覆量为3-50g/m 2，进一步地，所述降温材料的涂覆量为5-30g/m 2。
  7. 根据权利要求1-4任一项所述的降温嘴棒，其特征在于，所述通道为直通孔或不规则孔隙。
  8. 根据权利要求1-4任一项所述的降温嘴棒，其特征在于，所述降温段由载体在柱状空间内反复弯曲或曲折形成，所述降温材料涂覆于载体表面；所述载体为纸张、有机聚合物薄膜、无纺布中的一种。
  9. 根据权利要求1-4任一项所述的降温嘴棒，其特征在于，所述降温段由多个圆筒捆扎而成，所述降温材料涂覆于圆筒的内表面和/或外表面。
  10. 一种发烟制品，其特征在于，包括如权利要求1-9任一项所述的降温嘴棒和与降温嘴棒连接的发烟段。
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