Heating cigarette based on fuming of phase change material

Abstract

The invention provides a heating cigarette based on fuming of a phase-change material. The heating cigarette comprises a filter stick section, a cigarette core section and a phase-change fuming section which are sequentially connected from a near-mouth end to a far-mouth end, the filter stick section, the cigarette core section and the phase change fuming section are wrapped and formed by tipping paper for cigarettes; the filler of the phase change fuming section comprises dry ice microcapsule particles and an adsorption material loaded with liquid nitrogen. According to the heating cigarette, liquid nitrogen in the phase change fuming section can be rapidly refrigerated, water vapor is condensed to generate high-density rime fog, dry ice can maintain a low-temperature state for a long time, the water vapor is condensed to generate high-density rime fog (secondary fuming), the liquid nitrogen and the dry ice are matched for use, the smoke amount can be increased by 300% or above while the temperature is reduced, and then the satisfaction of consumers is better improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of heated cigarettes, and particularly relates to a heated cigarette based on a phase change material. BACKGROUND

[0002] Traditional cigarettes produce a large amount of harmful components when combusted, which are not only harmful to the health of the smoker himself, but also constitute environmental tobacco smoke, leading to the problem of second-hand smoke and affecting the health of the surrounding population. With the improvement of people's health awareness and the concern for the problem of passive smoking, most countries have introduced laws prohibiting smoking in public places, which has prompted the tobacco industry to seek a healthier and more environmentally friendly way of smoking. Moreover, it has been found that the components of tobacco, such as nicotine, tobacco aroma, and nicotine, can be extracted without the need for tobacco combustion, and when the temperature of the tobacco reaches about 200-350℃, these components are released. Therefore, by heating rather than combusting tobacco at a low temperature, the demand of consumers for tobacco components can be met while greatly reducing the release of harmful substances.

[0003] CN114794532A discloses a two-stage low-temperature heated cigarette, which comprises a tobacco segment and a filter segment, and the tobacco segment and the filter segment are wrapped by tipping paper to form a cigarette. The tobacco segment is composed of a heating segment and a temperature control segment, the length of the heating segment is consistent with the length of the heating body, and the outlet temperature of the heating segment is 160-180℃. The length of the temperature control segment is 10-25mm, and the outlet temperature of the temperature control segment is 70-80℃. The cigarette structure of the present application divides the tobacco segment into a heating segment and a temperature control segment, simplifies the cigarette structure, and further simplifies the manufacturing process of the heated cigarette, increases the aroma matrix, and effectively improves the aroma amount, concentration, and richness of the smoke of the heated cigarette, providing a better smoking experience.

[0004] CN116264912A discloses a low-temperature heated cigarette composed of a low-filter rod and a low-temperature smoking tobacco rod. The low-filter rod comprises a hollow filament straight pipe, one end of which is a sealed end, and small holes are provided on the pipe wall of the hollow filament straight pipe. The low-temperature smoking tobacco rod comprises a tobacco sheet, which contains an atomizing agent, tobacco powder, a heat-conducting material, and a low-temperature pore-forming agent, or contains an atomizing agent, tobacco powder, and a heat-conducting material, and small holes are punched on the tobacco sheet. The low-temperature heated cigarette can promote the efficient release of tobacco aroma components at a lower temperature (100-200℃), effectively improve the utilization efficiency of tobacco, and ensure that the strength, aroma amount, and aroma richness of the smoke of the low-temperature heated cigarette meet the physiological satisfaction of the smoker.

[0005] In the prior art, low-temperature heating cigarettes are mostly achieved by optimizing tobacco materials and cigarette structures, which can reduce the temperature of smoke, but may cause insufficient strength, aroma amount and aroma richness of smoke, and cannot meet the physiological needs of consumers, so there is an urgent need to provide a product that can reduce the temperature of smoke and not reduce the sensory experience to meet the needs of consumers. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a heating cigarette based on phase change material smoke, which utilizes the strong heat absorption effect of specific smoke generating materials to achieve low-temperature smoke generation and reduce pyrolysis by-products.

[0007] To achieve the purpose of the present application, the following technical solutions are adopted:

[0008] In a first aspect, the present application provides a heating cigarette based on phase change material smoke, which comprises a filter rod segment, a tobacco core segment and a phase change smoke generating segment connected in sequence from the proximal end to the distal end.

[0009] The filter rod segment, the tobacco core segment and the phase change smoke generating segment are wrapped and formed by tobacco tipping paper.

[0010] The filler of the phase change smoke generating segment comprises dry ice microcapsule particles and adsorbent materials loaded with liquid nitrogen.

[0011] In the heating cigarette of the present application, the phase change smoke generating segment utilizes the strong heat absorption effect of dry ice (solid CO2) sublimation (ΔH su- =25.2 kJ / mol) and liquid nitrogen gasification (ΔH vap =5.56 kJ / kg) to achieve low-temperature smoke generation and reduce pyrolysis by-products, wherein harmful substances such as formaldehyde are reduced by more than 90%. The liquid nitrogen can rapidly cool, condense water vapor to generate high-density white smoke, and the dry ice can maintain a low-temperature state for a long time, condense water vapor to generate high-density white smoke (secondary smoke), and the combination of the two can not only reduce the temperature, but also increase the amount of smoke by more than 300%, thereby better improving the satisfaction of consumers.

[0012] Preferably, the wall material of the dry ice microcapsule particles is porous gelatin, and the inner core is dry ice.

[0013] Preferably, the mass percentage of dry ice in the dry ice microcapsule particles is 0.1-50%, for example, it can be 0.5%, 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40% or 45% and the like.

[0014] Preferably, the particle size of the dry ice microcapsule particles is 50-200 μm, for example, it can be 60 μm, 80 μm, 100 μm, 120 μm, 150 μm, 170 μm or 190 μm and the like.

[0015] Preferably, the adsorbent material is diatomaceous earth and / or molecular sieve.

[0016] Preferably, the liquid nitrogen loading is 0.5-3 mL / g, for example, it can be 0.6 mL / g, 0.8 mL / g, 1 mL / g, 1.1 mL / g, 1.3 mL / g, 1.5 mL / g, 1.7 mL / g, 2 mL / g, 2.2 mL / g, 2.5 mL / g, 2.7 mL / g or 2.9 mL / g, etc.

[0017] Preferably, the mass ratio of the dry ice microcapsule particles to the adsorbent material loaded with liquid nitrogen is 1:(0.5-1.5). For example, it can be 1:0.6, 1:0.8, 1:1, 1:1.2, or 1:1.4, etc.

[0018] Preferably, the filling material of the core segment includes any one or a combination of at least two of the following: tobacco shreds, tobacco sheets, tobacco extracts, nicotine, or nicotine derivatives.

[0019] Preferably, the filler of the core segment is tobacco sheet and tobacco extract.

[0020] Preferably, the filter rod segment is made of cellulose acetate tow and / or polylactic acid tow.

[0021] Preferably, the filter rod segment is also loaded with a phase change temperature regulator.

[0022] Preferably, the phase change temperature regulator comprises magnesium octadecanoate.

[0023] In this invention, by adding a phase change temperature regulator to the filter rod section, the smoke generation temperature window can be controlled to prevent the inlet temperature from being too low, thereby improving the sensory experience for consumers.

[0024] Preferably, the mass ratio of the phase change temperature regulator to dry ice is 1:(2-3), for example, it can be 1:1.1, 1:1.3, 1:1.5, 1:1.8, 1:2, 1:2.2, 1:2.5, 1:2.7 or 1:2.9, etc.

[0025] Preferably, the tipping paper has a basis weight of 35-50 g / cm³. 2 For example, the paper material can be 36 g / cm³. 2 38 g / cm 2 40 g / cm 2 42 g / cm 2 45g / cm 2 48 g / cm 2 50 g / cm 2 52 g / cm 2 Or 54 g / cm2 .

[0026] Preferably, the end of the aerosol generating section not connected with the tobacco core section is also connected with a plug.

[0027] Preferably, the end of the aerosol generating section not connected with the tobacco core section is also connected with a plug.

[0028] Preferably, the inlet temperature of the heated cigarette is 10-22℃, for example, 11℃, 13℃, 15℃, 17℃, 19℃, 20℃ or 21℃, etc.

[0029] Specific point values within the above numerical range can be selected, which will not be described here one by one.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] The phase change smoking section of the heated cigarette in the present application utilizes the strong endothermic effect of dry ice (solid CO2) sublimation (ΔH su- =25.2 kJ / mol) and liquid nitrogen gasification (ΔH vap =5.56 kJ / kg) to realize low-temperature smoking and reduce pyrolysis by-products, in which harmful substances such as formaldehyde are reduced by more than 90%. The liquid nitrogen can rapidly cool, condense water vapor to generate high-density white fog, and the dry ice can maintain a low-temperature state for a long time, condense water vapor to generate high-density white fog (secondary smoking), and the combination of the two can not only reduce the temperature, but also increase the amount of smoke by more than 300%, thereby better improving the satisfaction of consumers. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be further described below through specific embodiments. Those skilled in the art should understand that the embodiments are only to help understand the present application and should not be regarded as specific limitations on the present application.

[0033] Embodiment 1

[0034] The present embodiment provides a heated cigarette based on phase change material smoking, which comprises, from the near mouth end to the far mouth end, a filter rod section, a tobacco core section, a phase change smoking section and a plug connected in sequence;

[0035] The filter rod section, the tobacco core section, the phase change smoking section and the plug are wrapped and formed by tobacco tipping paper (45 g / cm 2 );

[0036] The filler of the phase change smoking section is dry ice microcapsule particles and liquid nitrogen loaded diatomite with a mass ratio of 1:1;

[0037] The particle size of the dry ice microcapsule particles is 150 μm, the wall material is porous gelatin, and the inner core is dry ice (mass percentage content is 30%).

[0038] The loading amount of liquid nitrogen in the liquid nitrogen-loaded diatomite is 1.5 mL / g;

[0039] The filler of the tobacco core segment is tobacco sheet and tobacco extract with a mass ratio of 1:0.2;

[0040] The material of the filter rod segment is acetate fiber tow, and magnesium octadecanoate is uniformly loaded in the tow (the amount is 50% of the amount of dry ice).

[0041] Example 2

[0042] The heating cigarette based on phase change material smoking provided in the example comprises, from the near mouth end to the far mouth end, a filter rod segment, a tobacco core segment, a phase change smoking segment and a plug connected in sequence;

[0043] The filter rod segment, the tobacco core segment, the phase change smoking segment and the plug are wrapped and formed by a cigarette tipping paper (the grammage is 50 g / cm 2 );

[0044] The filler of the phase change smoking segment is dry ice microcapsule particles and liquid nitrogen-loaded A-type zeolite molecular sieve with a mass ratio of 2:3;

[0045] The particle size of the dry ice microcapsule particles is 100 μm, the wall material is porous gelatin, and the inner core is dry ice (the mass percentage content is 50%);

[0046] The loading amount of liquid nitrogen in the liquid nitrogen-loaded diatomite is 1 mL / g;

[0047] The filler of the tobacco core segment is tobacco sheet and tobacco extract with a mass ratio of 1:0.3;

[0048] The material of the filter rod segment is acetate fiber tow, and magnesium octadecanoate is uniformly loaded in the tow (the amount is 35% of the amount of dry ice).

[0049] Example 3

[0050] The heating cigarette based on phase change material smoking provided in the example comprises, from the near mouth end to the far mouth end, a filter rod segment, a tobacco core segment, a phase change smoking segment and a plug connected in sequence;

[0051] The filter rod segment, the tobacco core segment, the phase change smoking segment and the plug are wrapped and formed by a cigarette tipping paper (the grammage is 35 g / cm 2 );

[0052] The filler of the phase change smoking segment is dry ice microcapsule particles and liquid nitrogen-loaded diatomite with a mass ratio of 2:1;

[0053] The dry ice microcapsule particle has a particle size of 200 μm, the wall material is porous gelatin, and the core is dry ice (mass percentage of 20%);

[0054] The loading amount of liquid nitrogen in the liquid nitrogen-loaded diatomite is 3 mL / g;

[0055] The filler of the tobacco core segment is tobacco sheet and tobacco extract with a mass ratio of 1:0.1;

[0056] The material of the filter rod segment is acetate fiber tows, and the tows are uniformly loaded with magnesium octadecanoate (an amount of 60% of the dry ice).

[0057] Example 4

[0058] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that there is no plug; the rest of the structure is consistent with example 1.

[0059] Example 5

[0060] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that the mass ratio of dry ice microcapsule particles and liquid nitrogen-loaded diatomite is 1:3; the rest of the structure is consistent with example 1.

[0061] Example 6

[0062] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that the mass ratio of dry ice microcapsule particles and liquid nitrogen-loaded diatomite is 3:1; the rest of the structure is consistent with example 1.

[0063] Example 7

[0064] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that the filter segment is not loaded with a phase change temperature regulator; the rest of the structure is consistent with example 1.

[0065] Example 8

[0066] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that the phase change temperature regulator is polylactic acid; the rest of the structure is consistent with example 1.

[0067] Example 9

[0068] The example provides a heating cigarette based on phase change material smoking, which is different from example 1 only in that the amount of magnesium octadecanoate is 20% of the mass of dry ice; the rest of the structure is consistent with example 1.

[0069] Example 10

[0070] The present example provides a heating cigarette based on phase change material smoking, which is only different from example 1 in that the amount of magnesium octadecanoate is 80% of the mass of dry ice; the rest of the structure is consistent with example 1.

[0071] Comparative Example 1

[0072] The present example provides a heating cigarette based on phase change material smoking, which is only different from example 1 in that the amount of magnesium octadecanoate is 80% of the mass of dry ice; the rest of the structure is consistent with example 1.

[0073] Comparative Example 2

[0074] The present example provides a heating cigarette based on phase change material smoking, which is only different from example 1 in that the amount of magnesium octadecanoate is 80% of the mass of dry ice; the rest of the structure is consistent with example 1.

[0075] Comparative Example 3

[0076] The present example provides a heating cigarette, which is only different from example 1 in that the structure of the heating cigarette is sequentially connected from the near mouth end to the far mouth end, including a filter rod segment, an empty paper tube, and a tobacco core segment.

[0077] Test Example 1

[0078] The heating cigarettes of examples 1-3 and comparative examples 1-3 were respectively smoked on a smoking machine, and the contents of formaldehyde, acetaldehyde, and acrolein in the smoke aerosol were detected by derivatization + high performance liquid chromatography according to the Canadian deep puffing mode (smoking time set to 3 seconds).

[0079] The results are shown in Table 1.

[0080] Table 1

[0081]

[0082] Test Example 2

[0083] The heating cigarettes of examples 1-10 and comparative examples 1-3 were respectively smoked on a smoking machine, and the temperature of the smoke at the outlet was measured by thermocouple temperature measurement according to the Canadian deep puffing mode (smoking time set to 3 seconds). The thermocouple was fixed at the center 1 mm of the outlet of the filter part of the heating cigarette, and the thermocouple was connected to a temperature data acquisition system for measuring the temperature of the smoke at the outlet of the heating cigarette during smoking.

[0084] The results are shown in Table 2.

[0085] Table 2

[0086]

[0087] Test Example 3 Consumer Sensory Test:

[0088] Randomly select 91 consumers who often use heated cigarettes, divide the consumers into 13 groups of 7, and then ask the consumers to smoke the heated cigarettes of Examples 1-10 and Comparative Examples 1-3, respectively, and then ask the consumers to evaluate and score the temperature sensation, mouthfeel, and satisfaction of smoking, using a 5-point scale: 4.5 points and above, indicating very good, very satisfied; 4-4.5 points, indicating better; 3-4 points, indicating acceptable; and less than 3 points, indicating not good, not acceptable. The scores of each group are the average of 5 people, and the results are shown in Table 3.

[0089] Table 3

[0090]

[0091] As can be seen from Tables 1-3, compared with the conventional heated cigarette of Comparative Example 3, the heated cigarettes of Examples 1-3 of the present application do not use heating, so there is no formaldehyde, acetaldehyde, and acrolein, the inlet temperature is lower, and the consumer's experience after use is better.

[0092] As can be seen from Example 4, when there is no plug, the airflow can flow out directly, thereby affecting the airflow at the inlet, and the satisfaction is poor.

[0093] As can be seen from Examples 5-6 and Comparative Examples 1-2, when dry ice microcapsule particles and liquid nitrogen-loaded diatomite are used in combination, and the mass ratio of the two is within the range defined in the present application, the harmful components of the smoke are lower, the inlet temperature is better, the airflow is sufficient, and the ability to carry the active ingredients of the tobacco core segment is stronger, thereby also affecting the sensory experience of the consumer.

[0094] As can be seen from Examples 7-10, the addition of a phase change temperature regulator can make the inlet temperature more suitable, and only the phase change temperature regulator is the magnesium octadecanoate defined in the present application, and the amount of magnesium octadecanoate is within the range defined in the present application, so that the sensory experience of the consumer is better.

[0095] The applicant states that the present application illustrates a heating cigarette based on a phase change material through the above examples, but the present application is not limited to the above examples, i.e., it does not mean that the present application must rely on the above examples to be implemented. Those skilled in the art should understand that any improvement on the present application, equivalent replacement of each raw material of the product of the present application, addition of auxiliary ingredients, selection of specific methods, etc., all fall within the scope of protection and disclosure of the present application.

[0096] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details of the above-described embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

[0097] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, various possible combinations are not described again by the present application.

Claims

1. A heated cigarette based on phase change material for smoke generation, characterized in that, The heated cigarette, from the near end to the far end, includes a filter rod section, a core section, and a phase change smoke-generating section connected in sequence. The filter rod section, the cigarette core section, and the phase change smoke generation section are formed by wrapping the cigarette tipping paper. The phase change smoke-generating section is filled with dry ice microcapsule particles and an adsorbent material loaded with liquid nitrogen.

2. The heated cigarette based on phase change material smoke generation as described in claim 1, characterized in that, The wall material of the dry ice microcapsule particles is porous gelatin, and the inner core is dry ice; Preferably, the dry ice microcapsule particles contain 0.1-50% dry ice by mass. Preferably, the dry ice microcapsule particles have a particle size of 50-200 μm.

3. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1 or 2, characterized in that, The adsorbent material is diatomaceous earth and / or molecular sieve; Preferably, the liquid nitrogen loading is 0.5-3 mL / g.

4. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-3, characterized in that, The mass ratio of the dry ice microcapsule particles to the adsorbent material loaded with liquid nitrogen is 1:(0.5-1.5).

5. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-4, characterized in that, The filling material of the core segment includes any one or a combination of at least two of the following: tobacco shreds, tobacco sheets, tobacco extracts, nicotine, or nicotine derivatives. Preferably, the filler of the core segment is tobacco sheet and tobacco extract.

6. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-5, characterized in that, The filter rod segment is made of cellulose acetate tow and / or polylactic acid tow.

7. The heated cigarette based on phase change material smoke generation as described in claim 6, characterized in that, The filter rod section is also loaded with a phase change temperature regulator; Preferably, the phase change temperature regulator comprises magnesium octadecanoate.

8. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-7, characterized in that, The tipping paper has a basis weight of 35-50 g / cm³. 2 Paper materials.

9. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-8, characterized in that, The end of the aerosol generating section that is not connected to the core section is also connected to a plug. Preferably, the connection between the aerosol generating section and the plug is wrapped with splicing paper.

10. The heated cigarette based on phase change material for smoke generation as described in any one of claims 1-9, characterized in that, The inlet temperature of the heated cigarette is 10-22℃.

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