HEATING SMOKABLE PRODUCT AND HEAT-NOT-BURN SYSTEM

Abstract

 Embodiments provide a heatable and smokeable article and heat-not-burn system. In the embodiments, the heatable and smokeable article includes: an atomizing substrate section, a cooling section and a filtering section arranged in sequence along a length direction of the heatable and smokeable article; the cooling section being adapted for cooling smokes generated by the atomizing substrate section when heated, and the filtering section being adapted for filtering at least one component in the smokes; wherein the cooling section includes a phase-change material, components in the phase-change material have at least two phase-change temperatures within a temperature range of 45°C to 150°C, and the phase-change temperatures are solid-solid phase-change temperatures or solid-liquid phase-change temperatures. The temperature at the smoke outlet of the heatable and smokable article can be controlled within a range that is more comfortable for the user.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of tobacco technology, and in particular, to a heatable and smokable article and a heat-not-burn system.

BACKGROUND

[0002] A heatable and smokable article is one that its atomizing substrate section is heated to 200°C to 400°C by a heating device, thereby producing smoke similar to conventional cigarettes. When the smoke enters the user's mouth, the temperature can reach more than 100 °C. How to effectively reduce the temperature of the smoke to a comfortable range for users has become a technical problem that those skilled in the art continue to advance.

SUMMARY

[0003] The present disclosure is intended to provide a heatable and smokeable article and a heat-not-burn system to solve the technical problem of effectively reducing smoke.

[0004] In order to solve the above problems, the technical solutions provided by the present disclosure are as follows.

[0005] In a first aspect, an embodiment of the present disclosure provides a heatable and smokeable article, comprising: an atomizing substrate section, a cooling section and a filtering section arranged in sequence along a length direction of the heatable and smokeable article; the cooling section being adapted for cooling smokes generated by the atomizing substrate section when heated, and the filtering section being adapted for filtering at least one component in the smokes; wherein the cooling section comprises a phase-change material, components in the phase-change material have at least two phase-change temperatures within a temperature range of 45°C to 150°C, and the phase-change temperatures are solid-solid phase-change temperatures or solid-liquid phase-change temperatures.

[0006] In one embodiment, the components in the phase-change material have at least two phase-change temperatures within a temperature range of 52°C to 100°C.

[0007] In one embodiment, the phase-change material comprises at least two components selected from a group consisting of polyethylene glycol, carnauba wax, polyvinyl alcohol, polyethylene, polylactic acid, and dextran.

[0008] In one embodiment, the phase-change coating further comprises an auxiliary material for enhancing taste.

[0009] In one embodiment, the auxiliary material comprises at least one component selected from a group consisting of essence, polysaccharide, and plant powder.

[0010] In one embodiment, the phase-change material is 40 to 80 parts by weight, and the auxiliary material is 0.5 to 10 parts by weight.

[0011] In one embodiment, the phase-change coating further comprises a thermally conductive material.

[0012] In one embodiment, the thermally conductive material comprises graphite.

[0013] In one embodiment, the phase-change material is 40 to 80 parts by weight, and the thermally conductive material is 5 to 10 parts by weight.

[0014] In one embodiment, the phase-change coating further comprises a plasticizer.

[0015] In one embodiment, the plasticizer comprises at least one component selected from a group consisting of glycerol, triacetin, carboxymethyl cellulose, and sodium alginate.

[0016] In one embodiment, the phase-change material is 40 to 80 parts by weight, and the plasticizer is 5 to 10 parts by weight.

[0017] In one embodiment, a mass ratio of the phase-change coating to the cooling section is 5% to 10%.

[0018] In one embodiment, the cooling section is provided with a plurality of vent holes.

[0019] In one embodiment, a vent rate of the cooling section is between 10% and 70%.

[0020] In one embodiment, the cooling section has a body formed from a length of hollow paper tube.

[0021] In one embodiment, the cooling section comprises at least two cooling subsections, and the plurality of the vent holes are provided in one of the cooling subsections.

[0022] In one embodiment, a body of the cooling subsection with the plurality of the vent holes is formed of a hollow paper tube.

[0023] In one embodiment, the body of at least one of the cooling subsections is formed from a hollow cellulose acetate rod.

[0024] In one embodiment, the cooling section is formed by splicing two cooling subsections, and each of the two cooling subsections has a length within a range of 7mm to 22mm.

[0025] In one embodiment, the phase-change material is contained in a phase-change coating applied to an inner surface of a body structure of the cooling section.

[0026] In a second aspect, the present disclosure is intended to provide a heat-not-burn system, comprising a smoking set body and the heatable and smokeable article according to the first aspect, the smoking set body forming a receiving cavity provided with an opening for inserting the atomizing substrate section of the heatable and smokeable article into the receiving cavity, and the smoking set body further comprising a heating element provided on an inner surface of the receiving cavity, for heating the atomizing substrate section of the heatable and smokeable article.

[0027] In one embodiment, a ratio of a depth of the receiving cavity to a length of the heatable and smokeable article is in a range of 0.15 to 0.88.

[0028] In one embodiment, the heating element is provided on an inner side of the receiving cavity, and a heating area of the heating element has a lower boundary at least 1 mm higher than a lower boundary of the atomizing substrate section.

[0029] In one embodiment, the heating element is an infrared heating element.

[0030] Compared with the prior art, in the embodiments of the present disclosure, a phase-change coating is provided in the cooling section, and the phase-change material therein can generate phase-changes at multiple temperature points, thereby absorbing a large amount of heat and effectively reducing the temperature of the smoke.

BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings described herein are used to provide further understanding of the present disclosure and constitute a part of the present disclosure. The schematic embodiments and descriptions of the present disclosure are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure.

FIG. 1 is a schematic structural diagram illustrating a heatable and smokable article provided by an embodiment according to the present disclosure.

FIG. 2 is a schematic structural diagram illustrating another heatable and smokable article according to an embodiment according to the present disclosure.

FIG. 3 is a schematic structural diagram illustrating yet another heatable and smokable article according to an embodiment according to the present disclosure.

FIG. 4 is a schematic structural diagram illustrating a smoking set body provided by an embodiment according to the present disclosure.

FIG. 5 is a schematic structural diagram illustrating a heat-not-burn system provided by an embodiment according to the present disclosure.

[0032] In the figures:

1, smoking set body; 101, receiving cavity; 102, heating element;

2, heatable and smokable article; 201, atomizing substrate section; 202, cooling subsection; 2021, first cooling subsection; 2022, second cooling subsection; 2023, vent hole; 2024, phase-change coating; 203, filtering section.

DESCRIPTION OF EMBODIMENTS

[0033] In order to explain the overall concept of the present disclosure more clearly, the following detailed description is given by way of example in conjunction with the accompanying drawings.

[0034] In the present disclosure, it should be understood that terms such as "comprise", "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof disclosed in the specification and are not intended to exclude the possibility of the presence of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0035] In addition, it should be noted that the features among the embodiments of the present disclosure may be combined with each other/one another without any conflict. The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0036] Referring to FIGS. 1 to 3, an embodiment according to the present disclosure provides a heatable and smokeable article 2, including: an atomizing substrate section 201, a cooling section 202 and a filtering section 203 arranged in sequence along the length of the heatable and smokeable article 2. The cooling section 202 is used for cooling the smoke generated by the atomizing substrate section 201 when heated, and the filtering section 203 is used for filtering at least one component in the smoke.

[0037] The material within the atomizing substrate section 201 typically volatilizes the aerosol upon heated. The material within the atomizing substrate section 201 may be a material with/without tobacco. The material within the atomizing substrate section 201 may include, for example, one or more of tobacco itself, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco extract, homogenized tobacco, or tobacco substitutes.

[0038] Of course, in order to combine the atomizing substrate section 201, the cooling section 202 and the filtering section 203 into a whole, a material such as cigarette paper (not shown) is usually adopted to wrap them into a long stick shape.

[0039] In order to reduce the temperature of the smoke to a suitable temperature, the present disclosure makes two explorations. Two cooling methods are introduced below. It should be noted that these two methods can be used in combination.

[0040] Referring to FIG. 3, in the first cooling method, the cooling section 202 includes a phase-change coating 2024 coated on the inner surface of the body structure. The phase-change coating 2024 includes a phase-change material, and the components in the phase-change material have at least two phase-change temperatures in the temperature range of 45°C to 150°C, and the phase-change temperatures are solid-solid phase-change temperatures or solid-liquid phase-change temperatures.

[0041] When a solid material undergoes a phase change, it absorbs a large amount of thermal energy. The phase-change material used in the embodiments of the present disclosure may be in a solid state after the phase change completed, and still remain in the phase-change coating 2024. The phase-change material may also be in a liquid state after the phase change completed. By controlling the content of the liquid, the liquid can be adsorbed on the inner surface of the body structure of the cooling section 202 in a form of a thin film. Some components in a phase-change material may phase change at one temperature, while other components undergo a phase change at another temperature. By controlling the composition ratio of these different phase-change materials, the temperature of the smoke can be controlled within a relatively small temperature range. This smaller temperature range is controllable, in other words, it is customizable. In this way, the user experience can be improved.

[0042] Of course, the phase-change material can also be a single component.

[0043] The form in which the phase-change material exists is not limited to the phase-change coating. For example, the body structure of the cooling section 202 may be multilayered, and the phase-change material is provided in the gap between the two layers, and so on.

[0044] Optionally, the components in the phase-change material have at least two phase-change temperatures in the temperature range of 52°C to 100°C. In this way, the temperature of the smoke generated by the heatable and smokable article 2 can be brought closer to a temperature range that is comfortable for the user.

[0045] Optionally, the phase-change material includes at least two components selected from a group consisting of polyethylene glycol, carnauba wax, polyvinyl alcohol, polyethylene, polylactic acid, and dextran.

[0046] Optionally, the phase-change coating 2024 also contains an auxiliary material for enhancing the taste.

[0047] For example, the auxiliary material includes at least one component of flavor, polysaccharide, and plant powder.

[0048] Optionally, the phase-change material is recorded as 40 to 80 parts by weight, and the auxiliary material is recorded as 0.5 to 10 parts by weight. If the proportion of the auxiliary material is too low, the effect of improving the taste is not obvious, and if the proportion of the auxiliary material is too high, the cooling effect will be affected.

[0049] Optionally, the phase-change coating 2024 also includes a thermally conductive material. The thermally conductive material is used to increase the overall thermal conductivity of the phase-change coating 2024.

[0050] For example, the thermally conductive material includes graphite.

[0051] Optionally, the phase-change material is recorded as 40 to 80 parts by weight, and the thermally conductive material is recorded as 5 to 10 parts by weight. If the proportion of the thermally conductive material is too low, it will affect the heat conduction efficiency, and if it is too high, it will affect the cooling effect.

[0052] Optionally, the phase-change coating 2024 also includes a plasticizer. Therefore, the flexibility of the phase-change coating 2024 is enhanced, and it is easy to process.

[0053] For example, the plasticizer includes at least one of glycerin, triacetin, carboxymethyl cellulose (CMC), and sodium alginate.

[0054] Optionally, the phase-change material is recorded as 40 parts to 80 parts by weight, and the plasticizer is recorded as 5 parts to 10 parts by weight. If the proportion of the plasticizer is too low, the effect of improving the properties of the phase-change material will not be obvious, and If the proportion of the plasticizer is too high, the cooling effect will be affected.

[0055] Optionally, the mass ratio of the phase-change coating 2024 to the cooling section 202 is 5%-10%. If the phase-change coating 2024 is too heavy, droplets may fall off the inner surface of the body structure of the cooling section 202 when a solid-liquid phase-change occurs. If the phase-change coating 2024 is too light, the cooling effect will be poor.

[0056] Referring to FIG. 1 and FIG. 2, the second cooling method provided by the embodiment according to the present disclosure is that: the cooling section 202 is provided with a plurality of vent holes 2023. Referring to FIGS. 4 and 5, when the heatable and smokeable article 2 is inserted into the receiving cavity 101 of the smoking set body 1, the vent holes 2023 are located outside the receiving cavity 101, or are in communication with the outside air even though they are located in the receiving cavity 101. Therefore, when the user inhales the smoke, fresh air will flow into the cooling section 202 from the vent holes 2023, such that it will reduce the temperature of the smoke while diluting the smoke.

[0057] Specifically, the vent holes 2023 may be arranged in one or more rows along the circumferential direction of the cooling section 202. Of course, the distribution of the vent holes 2023 is not limited to this.

[0058] Optionally, the ventilation rate of the cooling section 202 is between 10% and 70%. If the ventilation rate is too small, the cooling effect is not obvious. If the ventilation rate is too large, the smoke will be too diluted and the taste will be affected.

[0059] Optionally, referring to FIG. 1, the body of the cooling section 202 is formed from a length of hollow paper tube.

[0060] Optionally, the cooling section 202 includes at least two cooling subsections, and the vent holes 2023 are provided in one of the cooling subsections.

[0061] Referring to FIG. 2, the cooling section 202 is formed by connecting a first cooling subsection 2021 and a second cooling subsection 2022. The vent holes 2023 are provided on the first cooling subsection 2021. Since the vent holes 2023 are closer to the atomizing substrate section 201, the cooling effect on the smoke is more obvious.

[0062] Using multiple cooling subsections for splicing, on the one hand, is convenient for processing, that is, cooling subsection with vent holes 2023 and cooling subsection without vent holes 2023 can be processed respectively. On the other hand, the lengths and suction resistances of different cooling subsections can be flexibly adjusted, so that the gradient of the smoke temperature can be more precisely regulated, that is, the smoke temperature can be flexibly and accurately regulated.

[0063] Optionally, the body of the cooling subsection with the vent holes is formed from a hollow paper tube. This is because the vent holes 2023 are provided on the hollow paper tube, so that the outside air can be well entered into the cooling section 202.

[0064] Optionally, the body of at least one cooling subsection is formed from a hollow cellulose acetate rod. Relatively, the air resistance of the hollow acetate rod is larger, and the heat of the smoke can dissipate more slowly.

[0065] Optionally, the cooling section 202 is formed by splicing two cooling subsections, and the lengths of the two cooling subsections are both in the range of 7 mm-22 mm. The length range can ensure sufficient cooling effect without making the heatable and smokable article too long to be inconvenient to use.

[0066] Referring to FIGS. 4 and 5, an embodiment of the present disclosure further provides a heat-not-burn system, comprising a smoking set body 1 and the above-mentioned heatable and smokable article 2. The smoking set body 1 forms an receiving cavity 101, and the receiving cavity 101 has an opening for inserting the atomizing substrate section 201 of the heatable and smokeable article 2 into the receiving cavity 101. The smoking set body 1 further includes a heating element 102 disposed on the inner surface of the receiving cavity 101 for heating the atomizing substrate section 201 of the heatable and smokeable article 2.

[0067] Optionally, the ratio of the depth of the receiving cavity 101 to the length of the heatable and smokeable article 2 is in the range of 0.15-0.88. In this way, it is convenient to effectively heat the atomizing substrate section 201 of the heatable and smokable article 2, and at the same time, a proper space can be reserved to dissipate the smoke.

[0068] Optionally, the heating element 102 is located on the inner side of the receiving cavity 101, and the lower boundary of the heating region of the heating element 102 is at least 1 mm higher than the lower boundary of the atomizing substrate section 201.

[0069] In other words, the distance between the heating region of the heating element 102 and the bottom of the receiving cavity 101 is at least 1 mm greater than the distance between the atomizing substrate section 201 and the bottom of the receiving cavity 101.

[0070] In this way, smoke can be prevented from flowing out from the bottom of the atomizing substrate section 201.

[0071] Optionally, the heating element 102 is an infrared heating element. Specifically, it may be an infrared coating coated on the inner side of the receiving cavity. Applying a voltage to both ends of the infrared coating can emit infrared rays, and the heating for the atomizing substrate section 201 is more uniform.

[0072] The following are several experimental examples provided in the present disclosure to illustrate the cooling effects of the above two cooling method.

Example 1

[0073] As shown in FIGS. 4 and 5, the smoking set body 1 is used in conjunction with the heatable and smokable article 2. The smoking set body 1 includes a receiving cavity 101 provided with an infrared heating element 102. The heatable and smokeable article 2 includes: an atomizing substrate section 201, a cooling section 202 and a filtering section 203. The cooling section 202 has a length of 33 mm and is arranged immediately downstream of the atomizing substrate section 201. The cooling section 202 is a hollow paper tube. The filtering section 203 is cellulose diacetate tow. The filtering section 203 is arranged downstream of the cooling section 202 and has a suction resistance of 10 Pa/mm. A row of vent holes 2023 are arranged in the circumferential direction of the cooling section 202 to form a ventilation effect with a ventilation rate of 30%. The ratio of the depth of the receiving cavity 101 to the length of the heatable and smokeable article 2 is controlled at 0.4-0.6, so that the temperature of the smoke flowing from the end of the filtering section 203 can be controlled between 40°C-60°C. The infrared heating element 102 surrounds the heatable and smokeable article 2, a heating chamber can be formed by the infrared heating element 102. The atomizing substrate section 201 inserted into the receiving cavity 101 may slightly exceed the bottom of the heating chamber enclosed by the infrared heating element 102 by at least 1 mm, to prevent smoke from escaping from the bottom of the atomizing substrate section 201.

Example 2

[0074] As shown in FIG. 2, compared with Example 1, the cooling section 202 can be composed of a first cooling subsection 2021 and a second cooling subsection 2022 for the convenience of equipment processing. The second cooling subsection 2022 is located downstream of the first cooling subsection 2021. In order to prevent the first cooling subsection 2021 immediately downstream of the atomizing substrate section 201 from being deformed or generating odor when heated, the first cooling subsection 2021 is a hollow paper tube with a length of 13 mm. The first cooling subsection 2021 is circumferentially provided with a row of vent holes 2023 to form a ventilation effect with a ventilation rate of 30%. The second cooling subsection 2022 is a hollow cellulose acetate rod with a length of 20mm.

Example 3

[0075] Compared with Example 1, in order to facilitate equipment processing, the cooling section 202 can be composed of a first cooling subsection 2021 and a second cooling subsection 2022. The second cooling subsection 2022 is located downstream of the first cooling subsection 2021. In order to prevent the first cooling subsection 2021 immediately downstream of the atomizing substrate section 201 from being deformed or producing odor when heated, the first cooling subsection 2021 is a hollow paper tube with a length of 13mm, and the first cooling subsection 2021 is circumferentially provided with a row of vent holes 2023, so as to form a ventilation effect with a ventilation rate of 30%. The second cooling subsection 2022 is a hollow paper tube with a length of 20 mm.

Example 4

[0076] Compared with Example 1, in order to facilitate equipment processing, the cooling section 202 can be composed of a first cooling subsection 2021 and a second cooling subsection 2022. The second cooling subsection 2022 is located downstream of the first cooling subsection 2021. In order to prevent the first cooling subsection 2021 immediately downstream of the atomizing substrate section 201 from being deformed or producing odor when heated, the first cooling subsection 2021 is a hollow paper tube with a length of 13mm, and the first cooling subsection 2021 is circumferentially provided with a row of vent holes 2023, so as to form a ventilation effect with a ventilation rate of 40%. The second cooling subsection 2022 is a hollow paper tube with a length of 20 mm.

Example 5

[0077] Compared with Example 1, in order to facilitate equipment processing, the cooling section 202 can be composed of a first cooling subsection 2021 and a second cooling subsection 2022. The second cooling subsection 2022 is located downstream of the first cooling subsection 2021. In order to prevent the first cooling subsection 2021 immediately downstream of the atomizing substrate section 201 from being deformed or producing odor when heated, the first cooling subsection 2021 is a hollow paper tube with a length of 13mm, and the first cooling subsection 2021 is circumferentially provided with a row of vent holes 2023, so as to form a ventilation effect with a ventilation rate of 50%. The second cooling subsection 2022 is a hollow paper tube with a length of 20 mm.

Example 6

[0078] Compared with Example 1, in order to facilitate equipment processing, the cooling section 202 can be composed of a first cooling subsection 2021 and a second cooling subsection 2022, and the second cooling subsection 2022 is located downstream of the first cooling subsection 2021. In order to prevent the first cooling subsection 2021 immediately downstream of the atomizing substrate section 201 from being deformed or generating odor when heated, the first cooling subsection 2021 is a hollow paper tube with a length of 13 mm. The first cooling subsection 2021 is circumferentially arranged with a row of vent holes 2023 to form a ventilation effect with a ventilation rate of 70%. The second cooling subsection 2022 is a hollow paper tube with a length of 20 mm.

Example 7

[0079] As shown in FIG. 3, compared with Example 1, the cooling section 202 is provided with multi-stage phase-change materials, and the formation is that the inner wall of the cooling section 202 is coated with a phase-change coating 2024 that accounts for 5% by weight of the cooling section 202. The components in the phase-change coating 2024 are as follows in parts by weight: the phase-change material comprises 30-50 parts of polyethylene glycol, 10-30 parts of carnauba wax, and 2-5 parts of glucan powder; the thermally conductive material is 5-50 parts of graphite; plasticizer is 5-10 parts of glycerol. Among them, polyethylene glycol can undergo a phase-change at 58 °C, and absorb heat from solid state change to liquid state; carnauba wax can undergo a phase-change at 72 °C, and absorb heat from solid state change to liquid state.

[0080] The method for preparing the phase-change coating 2024 is as follows: (1) weighing 30-50 parts of polyethylene glycol and 8-20 parts of carnauba wax into a container for heating, and setting the heating temperature set to about 90°C; (2) adding 2-10 parts of glucomannan powder, 5-10 parts of graphite, and 5-10 parts of glycerin into the container after the above-mentioned materials are completely heated and melted into a liquid state; and then stirring evenly; (3) adding the above-mentioned materials through a coating process into the cooling section 202.

Example 8

[0081] Compared with Example 7, the composition of the phase-change coating 2024 by weight is as follows: the phase-change material comprises 30-50 parts of polyethylene glycol, 8-20 parts of carnauba wax, and 2-5 parts of polylactic acid powder; the auxiliary material is 1-5 parts of mint flavor; the thermal conductive material is 5-10 parts of graphite; the plasticizer is 5-10 parts of glycerol. Among them, polyethylene glycol can undergo a phase-change at 58 ° C, and absorb heat from solid state change to liquid state, carnauba wax can undergo a phase-change at 72 ° C, and absorb heat from solid state change to liquid state, and polylactic acid crystallizes at about 62 ° C. phase-change, part of the crystalline phase is transformed from a glassy state to a highly elastic state, for absorbing heat.

[0082] The method for preparing the phase-change coating 2024 is as follows: (1) weighing 30-50 parts of polyethylene glycol and 8-20 parts of carnauba wax into a container for heating, and setting the heating temperature to about 90°C; (2) adding 2-10 parts of polylactic acid powder, 1-5 parts of peppermint essence, 5-10 parts of graphite, and 5-10 parts of glycerin into the container after the above-mentioned materials are completely heated and melted into a liquid state; and then stirring evenly; (3) adding the above materials to the cooling section 202 through a coating process.

[0083] After using the above examples to make the heatable and smokable article 2, heating is carried out in the smoking set body 1, and the temperature of the smoke at the outlet of the filtering section 203 is tested with a temperature measuring instrument. The specific data are as follows.

Samples	Temperature of Smoke	State of Smoke
Example 1	54.2°C	Relative large concentration of the smoke
Example 2	57.1°C	Relative large concentration of the smoke
Example 3	54.2°C	Relative large concentration of the smoke
Example 4	52.6°C	Moderate concentration of the smoke

Example 5	50.1°C	Relative small concentration of the smoke
Example 6	47.2°C	Small concentration of the smoke
Example 7	50.4°C	Relative large concentration of the smoke
Example 8	46.6°C	Relative large concentration of the smoke

[0084] It can be seen from the above results that when all the hollow paper tubes are used in the cooling section 202, due to the large internal space, it is beneficial to reduce the temperature of the smoke. By further increasing the ventilation rate of the vent holes 2023 in the cooling section 202, the temperature of the smoke can also be reduced by dilution with cold air, but as the ventilation rate increases, the concentration of the smoke, that is, the amount of smoke, will decrease. After using the phase-change coating 2024 to coat the inner surface of the cooling section 202, it can have a better cooling effect while ensuring a larger smoke concentration.

[0085] The above are merely examples of the present disclosure, and are not intended to limit the present disclosure. Various modifications and variations of the present disclosure are possible for those skilled in the art. Any modification, equivalent replacement, improvement and the like, made within the spirit and principle of the present disclosure shall be included within the scope of the appended claims of the present disclosure.

Claims

1. A heatable and smokeable article, comprising: an atomizing substrate section, a cooling section and a filtering section arranged in sequence along a length direction of the heatable and smokeable article; the cooling section being adapted for cooling smokes generated by the atomizing substrate section when heated, and the filtering section being adapted for filtering at least one component in the smokes;
wherein the cooling section comprises a phase-change material, components in the phase-change material have at least two phase-change temperatures within a temperature range of 45°C to 150°C, and the phase-change temperatures are solid-solid phase-change temperatures or solid-liquid phase-change temperatures.

2. The heatable and smokeable article according to claim 1, wherein the components in the phase-change material have at least two phase-change temperatures within a temperature range of 52°C to 100°C.

3. The heatable and smokable article according to claim 1, wherein the phase-change material comprises at least two components selected from a group consisting of polyethylene glycol, carnauba wax, polyvinyl alcohol, polyethylene, polylactic acid, and dextran.

4. The heatable and smokeable article according to claim 3, wherein the phase-change coating further comprises an auxiliary material for enhancing taste.

5. The heatable and smokable article according to claim 4, wherein the auxiliary material comprises at least one component selected from a group consisting of essence, polysaccharide, and plant powder.

6. The heatable and smokeable article according to claim 4, wherein the phase-change material is 40 to 80 parts by weight, and the auxiliary material is 0.5 to 10 parts by weight.

7. The heatable and smokeable article according to claim 1, wherein the phase-change coating further comprises a thermally conductive material.

8. The heatable and smokeable article according to claim 7, wherein the thermally conductive material comprises graphite.

9. The heatable and smokeable article according to claim 7, wherein the phase-change material is 40 to 80 parts by weight, and the thermally conductive material is 5 to 10 parts by weight.

10. The heatable and smokeable article according to claim 1, wherein the phase-change coating further comprises a plasticizer.

11. The heatable and smokable article according to claim 10, wherein the plasticizer comprises at least one component selected from a group consisting of glycerol, triacetin, carboxymethyl cellulose, and sodium alginate.

12. The heatable and smokeable article according to claim 10, wherein the phase-change material is 40 to 80 parts by weight, and the plasticizer is 5 to 10 parts by weight.

13. The heatable and smokeable article according to claim 1, wherein a mass ratio of the phase-change coating to the cooling section is 5% to 10%.

14. The heatable and smokeable article according to claim 1, wherein the cooling section is provided with a plurality of vent holes.

15. The heatable and smokeable article according to claim 14, wherein a vent rate of the cooling section is between 10% and 70%.

16. The heatable and smokeable article according to claim 14, wherein the cooling section has a body formed from a length of hollow paper tube.

17. The heatable and smokeable article according to claim 14, wherein the cooling section comprises at least two cooling subsections, and the plurality of the vent holes are provided in one of the cooling subsections.

18. The heatable and smokeable article according to claim 17, wherein a body of the cooling subsection with the plurality of the vent holes is formed of a hollow paper tube.

19. The heatable and smokeable article according to claim 18, wherein the body of at least one of the cooling subsections is formed from a hollow cellulose acetate rod.

20. The heatable and smokeable article according to claim 17, wherein the cooling section is formed by splicing two cooling subsections, and each of the two cooling subsections has a length within a range of 7mm to 22mm.

21. The heatable and smokeable article according to claim 1, wherein the phase-change material is contained in a phase-change coating applied to an inner surface of a body structure of the cooling section.

22. A heat-not-burn system, comprising a smoking set body and the heatable and smokeable article according to any one of claims 1-21, the smoking set body forming a receiving cavity provided with an opening for inserting the atomizing substrate section of the heatable and smokeable article into the receiving cavity, and the smoking set body further comprising a heating element provided on an inner surface of the receiving cavity, for heating the atomizing substrate section of the heatable and smokeable article.

23. The heat-not-burn system according to claim 22, wherein a ratio of a depth of the receiving cavity to a length of the heatable and smokeable article is in a range of 0.15 to 0.88.

24. The heat-not-burn system according to claim 22, wherein the heating element is provided on an inner side of the receiving cavity, and a heating area of the heating element has a lower boundary at least 1 mm higher than a lower boundary of the atomizing substrate section.

25. The heat-not-burn system according to claim 22, wherein the heating element is an infrared heating element.

Drawing