Heated tobacco product and smoke-producing section thereof

Abstract

Provided are a heated tobacco product and a smoke-producing section thereof. The smoke-producing section comprises at least two types of tobacco sheets (1). Different tobacco sheets (1) are sequentially distributed in the radial direction of the smoke-producing section. Each tobacco sheet (1) comprises a flavoring agent and a microwave absorber, the flavoring agents in the different tobacco sheets (1) are different in type, and the microwave absorbers in the different tobacco sheets (1) are different in content. The smoke-producing section is heated by means of microwaves; each microwave absorber is a material capable of absorbing microwaves and efficiently converting same into thermal energy, thereby increasing the heating rate of the corresponding tobacco sheet (1) under a microwave heating condition; the higher the content of the microwave absorbers is, the faster the heating rate is, and the earlier the flavoring agents in the corresponding tobacco sheets (1) release aromas, thereby achieving sequential and orderly release of aromas from the different tobacco sheets (1), delivering multi-layered flavors with each puff.

Description

A heating cigarette and a smoking segment thereof

[0001] This application claims priority to Chinese Patent Application No. CN202410413861.6, filed on April 8, 2024, the contents of which are incorporated herein in their entirety by reference. TECHNICAL FIELD

[0002] The present application relates to the field of heating cigarettes, in particular to a heating cigarette and a smoking segment thereof. BACKGROUND

[0003] In order to enrich the taste when smoking a cigarette, flavoring agents can be added to the cut tobacco of the cigarette to release their flavors when the cigarette is heated. In order to obtain different levels of taste in a cigarette, different flavoring agents can be added to the cut tobacco. However, the current heating methods for cigarettes are usually resistance heating, electromagnetic heating, and air heating, etc. Regardless of how different types of flavoring agents are distributed in the cut tobacco, different types of flavoring agents are almost heated at the same time when heated, and multiple flavors are almost released at the same time. The taste of different flavoring agents cannot be released in sequence, so it is difficult to obtain different mouth-to-mouth taste when smoking.

[0004] Therefore, how to solve the above technical problems should be the focus of attention of those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a heating cigarette and a smoking segment thereof to achieve sequential release of different flavors and obtain different mouth-to-mouth taste.

[0006] To solve the above technical problems, the present application provides a smoking segment of a cigarette, comprising at least two types of cut tobacco, different cut tobaccos being sequentially distributed along the radial direction of the smoking segment.

[0007] The cut tobacco comprises flavoring agents and microwave absorbers, the types of flavoring agents in different cut tobaccos are different, and the contents of microwave absorbers in different cut tobaccos are different.

[0008] The smoking segment is heated by microwaves, and the microwave absorber is a material that can absorb microwaves and efficiently convert them into heat energy.

[0009] Optionally, the microwave absorber comprises biomass semi-coke powder, and the raw materials for preparing the biomass semi-coke powder comprise at least one of tobacco leaf powder, tobacco stem powder, tobacco dust, tobacco waste, tea leaves, peppermint, orange peel, and coffee.

[0010] Optionally, according to the order of microwave absorber content from high to low or from low to high, different cut tobaccos are sequentially distributed along the radial direction of the smoking segment from the inside to the outside.

[0011] Optionally, the weight of the microwave absorber in each of the sheet tobaccos is greater than 20% of the weight of the tobacco powder.

[0012] Optionally, the sheet tobaccos further comprise an atomizing agent.

[0013] Optionally, the atomizing agent comprises glycerol, or a mixture of glycerol and propylene glycol.

[0014] Optionally, when the atomizing agent comprises a mixture of glycerol and propylene glycol, the mass ratio of propylene glycol in the mixture in different sheet tobaccos increases with the increase of the content of the microwave absorber.

[0015] Optionally, the microwave absorber and the flavoring agent are uniformly distributed in the sheet tobaccos.

[0016] Optionally, at least one of the sheet tobaccos comprises at least two of the flavoring agents.

[0017] The application also provides a heated cigarette, which comprises any of the above-mentioned smoking sections.

[0018] The application provides a smoking section of a heated cigarette, which comprises at least two sheet tobaccos, different sheet tobaccos are sequentially distributed along the radial direction of the smoking section; the sheet tobaccos comprise a flavoring agent and a microwave absorber, the types of the flavoring agents in different sheet tobaccos are different, and the contents of the microwave absorbers in different sheet tobaccos are different; the smoking section is heated by microwaves, and the microwave absorber is a material that can absorb microwaves and efficiently convert them into heat.

[0019] As can be seen, the smoking section of the application comprises at least two sheet tobaccos, different sheet tobaccos comprise different contents of microwave absorbers and different types of flavoring agents. The microwave absorber can improve the heating rate of the sheet tobacco under microwave heating conditions. The higher the content of the microwave absorber, the faster the heating, that is, the sheet tobacco with a higher content of the microwave absorber reaches the heating temperature first, and the flavoring agent therein is released first, thereby realizing the sequential and orderly release of the flavors in different sheet tobaccos and providing different levels of mouthfeel for each puff.

[0020] In addition, the application also provides a cigarette with the above-mentioned advantages. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0022] Fig. 1 is a cross-sectional view of a smoking segment according to an embodiment of the present application;

[0023] In the figure, 1 is cut tobacco, and 2 is cigarette paper. DETAILED DESCRIPTION

[0024] In order to make the person skilled in the art better understand the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0026] As described in the background section, the current heating methods of cigarettes are generally resistance heating, electromagnetic heating and air heating, etc. Regardless of the distribution of different types of flavoring agents in cut tobacco, different types of flavoring agents are almost heated at the same time when heated, and multiple flavors are almost released at the same time, so that it is difficult to obtain different mouthfeel of each puff when smoking.

[0027] Therefore, the present application provides a smoking segment of a heated cigarette, please refer to Fig. 1, which comprises:

[0028] At least two cut tobaccos 1, different cut tobaccos 1 are sequentially distributed along the radial direction of the smoking segment;

[0029] The cut tobacco 1 comprises flavoring agents and microwave absorbers, the types of flavoring agents in different cut tobaccos 1 are different, and the contents of microwave absorbers in different cut tobaccos 1 are different;

[0030] The smoking segment is heated by microwaves, and the microwave absorber is a material that can absorb microwaves and efficiently convert them into heat.

[0031] It should be pointed out that the smoking segment can also comprise cigarette paper 2 located on the outer surface of the outermost cut tobacco 1.

[0032] The number of cut tobaccos 1 in the present application is not specifically limited, for example, it can be two, three, four, etc. In Fig. 1, the number of cut tobaccos 1 is two.

[0033] Further, the application does not limit the minimum content of the microwave absorber, and the minimum content of the microwave absorber in the sheet tobacco 1 can be 0.

[0034] The flavoring agent can be a fruit flavoring agent or a mint flavoring agent, for example, the fruit flavoring agent can be sweet orange essence, pineapple essence, watermelon essence, peach essence, etc.

[0035] Each sheet tobacco 1 includes a flavoring agent, and the application does not limit the amount of the flavoring agent in each sheet tobacco 1. For example, as an implementation manner, each sheet tobacco 1 can include one flavoring agent; as another implementation manner, at least one of the sheet tobaccos 1 includes at least two flavoring agents.

[0036] The sheet tobacco 1 can further include tobacco powder, a binder, and fiber material. The binder includes, but is not limited to, any one or more of sodium alginate, sodium carboxymethyl cellulose, chitosan, guar gum, locust bean gum, and cellulose acetate; and the fiber material includes, but is not limited to, any one or more of needle pulp, needle kraft pulp, and needle bleached kraft pulp.

[0037] As an implementation manner, the weight of the microwave absorber in each sheet tobacco 1 is greater than 20% of the weight of the tobacco powder.

[0038] The microwave absorber can absorb microwaves during microwave heating of the smoking section, thereby improving the heating rate of the sheet tobacco 1 under microwave heating conditions.

[0039] During microwave heating, the higher the content of the microwave absorber, the sooner the corresponding sheet tobacco 1 is heated, and the sooner the flavor of the flavoring agent is released. The heat of the sheet tobacco 1 with a high content of the microwave absorber is conducted to the sheet tobacco 1 with a low content of the microwave absorber or without the microwave absorber, thereby heating the sheet tobacco 1 and relatively delaying the release of the flavor contained therein.

[0040] The microwave absorber can be biomass powder, for example, the raw material for preparing the biomass semi-coke powder includes, but is not limited to, at least one of tobacco leaf powder, tobacco stem powder, tobacco dust, tobacco waste, tea leaves, mint, orange peel, and coffee. When the raw material for preparing the biomass semi-coke powder is tobacco leaf powder, tobacco stem powder, tobacco dust, or tobacco waste, the microwave absorber is obtained from tobacco raw materials, and does not affect the flavor and safety of the sheet tobacco 1.

[0041] The microwave absorber can be obtained by thermal cracking at 600-800°C, at which the carbonization degree of the microwave absorber is high, and the microwave absorber is more conducive to absorbing microwave heat.

[0042] It should be noted that the application does not limit the arrangement of different sheet tobaccos 1.

[0043] As an implementation manner, the different sheet tobaccos 1 are arranged in the radial direction of the smoking segment in sequence from inside to outside according to the order of the microwave absorbing agent content from high to low or from low to high. When the sheet tobaccos 1 are arranged in the radial direction of the smoking segment in sequence from inside to outside according to the order of the microwave absorbing agent content from high to low, the innermost sheet tobaccos 1 are heated first during microwave heating, and the sheet tobaccos 1 are heated in sequence according to the order from inside to outside in the radial direction of the smoking segment. When the sheet tobaccos 1 are arranged in the radial direction of the smoking segment in sequence from inside to outside according to the order of the microwave absorbing agent content from low to high, the outermost sheet tobaccos 1 are heated first during microwave heating, and the sheet tobaccos 1 are heated in sequence according to the order from outside to inside in the radial direction of the smoking segment.

[0044] As another implementation manner, the sheet tobaccos 1 with different microwave absorbing agent contents can also be arranged at will in the radial direction of the smoking segment.

[0045] In order to make the sheet tobaccos 1 be heated uniformly and the flavors be released uniformly during microwave heating, the microwave absorbing agent and the flavoring agent are uniformly distributed in the sheet tobaccos 1.

[0046] The smoking segment of the embodiment includes at least two sheet tobaccos 1, and the different sheet tobaccos 1 include different contents of microwave absorbing agent and different types of flavoring agent. The microwave absorbing agent can increase the temperature rising rate of the sheet tobaccos 1 under microwave heating, and the higher the content of the microwave absorbing agent, the faster the temperature rises, that is, the sheet tobaccos 1 with higher content of microwave absorbing agent reach the heating temperature first, and the flavoring agent in the sheet tobaccos 1 is released first, so that the flavors in the different sheet tobaccos 1 are released in sequence and order, and different levels of puff-by-puff taste are provided.

[0047] On the basis of the above embodiment, in an embodiment of the present application, the sheet tobaccos 1 further include an atomizing agent to enhance the release of smoke during heating and smoking of the smoking segment.

[0048] The atomizing agent includes but is not limited to glycerol and a mixture of glycerol and propylene glycol. In the mixture of glycerol and propylene glycol, the mass ratio of glycerol is more than 50%.

[0049] As an implementation manner, when the atomizing agent includes a mixture of glycerol and propylene glycol, the mass ratio of propylene glycol in the mixture increases with the increase of the content of the microwave absorbing agent in the different sheet tobaccos 1. That is, the higher the content of the microwave absorbing agent in the sheet tobaccos 1, the greater the mass ratio of propylene glycol in the mixture of glycerol and propylene glycol.

[0050] Propylene glycol is beneficial to the release of smoke at low temperature, and can promote the flavoring agent in the sheet tobaccos 1 to release flavor in advance.

[0051] The application also provides a heated cigarette, which comprises the smoking segment according to any one of the above embodiments.

[0052] The production of the smoking segment and the cigarette according to the application is described below with a specific case.

[0053] The tobacco powder, glycerol, propylene glycol, sodium carboxymethyl cellulose, fiber (bleached kraft pulp of coniferous wood), water and orange flavor are fully stirred and mixed uniformly to form a lump mixture, which is further subjected to repeated kneading treatment in multiple directions and angles. The rolled sheet is dried and shaped, and then cut into shreds to form the first sheet of tobacco shreds.

[0054] The tobacco powder, microwave absorber, glycerol, sodium carboxymethyl cellulose, fiber (bleached kraft pulp of coniferous wood), water and pineapple flavor are fully stirred and mixed uniformly to form a lump mixture, which is further subjected to repeated kneading treatment in multiple directions and angles. The rolled sheet is dried and shaped, and then cut into shreds to form the second sheet of tobacco shreds.

[0055] The first sheet of tobacco shreds and the second sheet of tobacco shreds are rolled into the smoking segment, which is further produced into a cigarette. The smoking segment is rolled as follows: the second sheet of tobacco shreds is used in the central part, and the first sheet of tobacco shreds is used in the peripheral part.

[0056] The heated cigarette obtained by the method is heated by a microwave heating appliance, and first releases the pineapple flavor, then releases the orange flavor, and further obtains different levels of taste.

[0057] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0058] The cigarette and the smoking segment thereof according to the application are described in detail above. The principles and implementation manners of the application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the method and the core idea of the application. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A smoking section for heating a cigarette, characterized in that: The invention comprises at least two kinds of thin tobacco slices, wherein the different thin tobacco slices are distributed in sequence along the radial direction of the smoking section; the thin tobacco slices contain flavoring agents and microwave absorbers, wherein the flavoring agents are of different types and the content of the microwave absorbers is different in the different thin tobacco slices; the smoking section is heated by microwaves, and the microwave absorber is a material that can absorb microwaves and efficiently convert them into heat energy.

2. The smoking segment of a cigarette according to claim 1, wherein: The microwave absorbent comprises biomass semi-coke powder, and the raw materials for preparing the biomass semi-coke powder comprise at least one of tobacco leaf powder, tobacco stem powder, tobacco dust, tobacco waste, tea leaves, mint, orange peel, and coffee.

3. The smoking segment of a cigarette according to claim 1, wherein: According to the order of microwave absorbent content from high to low or from low to high, the different thin tobacco slices are distributed in sequence from inside to outside along the radial direction of the smoking section.

4. The smoking segment of a cigarette according to claim 1, wherein: In each of the thin tobacco sheets, the weight of the microwave absorber is greater than 20% of the weight of tobacco powder.

5. The smoking segment of a cigarette according to claim 1, wherein: The thin tobacco also includes: an atomizer.

6. The smoking segment of a cigarette according to claim 5, characterized in that: The atomizer includes glycerol or a mixture of glycerol and propylene glycol.

7. The smoking segment of a cigarette according to claim 6, characterized in that: When the atomizer includes a mixture of glycerol and propylene glycol, the mass ratio of propylene glycol in the mixture increases with the increase of the content of the microwave absorbent in the different thin tobacco slices.

8. The smoking segment of a cigarette according to claim 1, wherein: The microwave absorber and the flavoring agent are evenly distributed in the thin tobacco slices.

9. The smoking segment of a cigarette according to any one of claims 1 to 8, characterized in that: At least one of the thin tobacco sheets comprises at least two of the flavoring agents.

10. A heated cigarette, characterized in that: The cigarette comprises the smoking segment according to any one of claims 1 to 9.

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