Slow-release ball for heating a cigarette and method of manufacturing the same

Abstract

The present application relates to the technical field of heating cigarette, and more particularly to a slow-release limiting ball for heating cigarette and a preparation method thereof. The preparation method comprises the following steps: taking dried tangerine or orange peel as raw material, and extracting dried tangerine or orange peel essential oil by using water vapor distillation method; taking dried tangerine or orange peel powder, graphite and the dried tangerine or orange peel essential oil as raw materials, and obtaining slow-release granule wet material by using wet granulation; performing rolling treatment on the slow-release granule wet material to obtain slow-release spherical wet material; and performing freeze-drying on the slow-release spherical wet material to obtain slow-release limiting balls with a diameter of 6-7 mm. The slow-release limiting balls prepared by the method can slowly release aroma when the heating cigarette is heated, can give the smoke a certain sweet and smooth feeling, and can also have a certain blocking and limiting effect on the material of the granule section.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating cigarettes, in particular to a slow-release limiting ball for heating cigarettes and a preparation method thereof. BACKGROUND

[0002] In recent years, with the improvement of consumers' health awareness, new tobacco products such as heating cigarettes have become the focus and key of the development of the world tobacco industry. Heating cigarettes deliver the aroma of tobacco to consumers through heating without combustion. Heating cigarettes can heat tobacco at a relatively low temperature, avoiding the generation of harmful compounds such as tar caused by high-temperature combustion of tobacco. Compared with traditional cigarettes, harmful or potentially harmful ingredients in the smoke of heating cigarettes are significantly reduced, and since there is basically no side stream smoke, no second-hand smoke is generated, so heating cigarettes have been increasingly concerned and favored by consumers in recent years.

[0003] At present, heating cigarette types can be divided into ordered sheet type heating cigarettes, disordered sheet type heating cigarettes, and granular type heating cigarettes according to the form of smoke releasing material. Among them, the granular type heating cigarette is generally composed of a granular segment wrapped by a hard paper tube, a limiting piece, a hollow segment and a filter segment, and the tobacco segment is sealed by a ventilation paper. For granular type heating cigarettes, the common method for adding flavor is to directly spray flavoring bases in tobacco particles. However, heating cigarettes are different from traditional cigarettes in that the heating temperature is lower, so it is easy to cause uneven release of aroma components in tobacco. How to reduce the difference in aroma between the front and back of the smoke has become one of the problems to be solved. SUMMARY

[0004] To solve or partially solve the problems in the related art, the present application provides a slow-release limiting ball for heating cigarettes and a preparation method thereof.

[0005] The present application provides a preparation method of a slow-release limiting ball for heating cigarettes, which comprises the following steps:

[0006] Step a1), taking pericarpium citri reticulatae as raw material, and extracting pericarpium citri reticulatae essential oil by steam distillation method;

[0007] Step a2), taking pericarpium citri reticulatae powder, graphite and the pericarpium citri reticulatae essential oil as raw materials, and adopting wet granulation to obtain slow-release granular wet material;

[0008] Step a3), performing round rolling treatment on the slow-release granular wet material to obtain slow-release spherical wet material;

[0009] Step a4), performing freeze-drying on the slow-release spherical wet material to obtain slow-release limiting balls with a diameter of 6-7mm and a particle size of 6-7mm.

[0010] Further, the step a1) is specifically:

[0011] The dried tangerine peel is cut into pieces to obtain tangerine peel pieces.

[0012] The tangerine peel pieces are mixed with 10-15 times of water, heated to reflux for 1-4 hours, and the tangerine peel essential oil is collected.

[0013] Further, the tangerine peel powder in step a2) is prepared by the following method:

[0014] The dried tangerine peel is ground into powder to obtain the tangerine peel powder.

[0015] Further, the step a2) is specifically:

[0016] The tangerine peel powder, graphite and the tangerine peel essential oil are mixed with the adhesive, and then placed in a wet granulator for stirring and mixing. Distilled water and glycerol are added during the stirring process. After uniform stirring, the mixture is extruded and granulated to obtain the wet release granules. The mass ratio of the tangerine peel powder, graphite and the tangerine peel essential oil to the adhesive is (90-95):(5-10):(2-10):(10-20). The mass ratio of the distilled water, glycerol and tangerine peel powder is 10:(1-2):(0.5-1).

[0017] The application also provides a heating cigarette release limiting ball prepared by the method of any one of the above.

[0018] The application also provides a preparation method of a heating cigarette, which comprises the following steps:

[0019] A strip-shaped protrusion is arranged on the inner side of the cigarette paper in the circumferential direction, and a paper spring is arranged in the radial direction. The paper spring is located at one end of the strip-shaped protrusion close to the filter.

[0020] The cigarette paper is rolled to form a paper tube. The strip-shaped protrusion forms a limiting stop ring, and a particle section is formed between the end of the paper tube and the limiting stop ring. A limiting section is formed between the limiting stop ring and the free end of the paper spring.

[0021] Tobacco particles are poured into the paper tube, so that the tobacco particles are arranged in the particle section.

[0022] The release limiting ball is poured into the paper tube and pressed into the limiting section, so that one side of the release limiting ball abuts against the limiting stop ring, and the other side abuts against the free end of the paper spring.

[0023] The filter is assembled to obtain the heating cigarette.

[0024] Further, the tobacco particles are prepared by the following method: waste tobacco is used as raw material to perform wet granulation, so as to obtain the tobacco particles. The particle size of the tobacco particles is 1-2 mm.

[0025] Further, the height of the strip-shaped protrusion is 1-3 mm.

[0026] Further, the length of the granular section is 12-15 mm.

[0027] The application also provides a heated cigarette prepared according to the method of any one of the above.

[0028] The preparation method of the slow-release limiting ball of the heated cigarette provided by the application can have the following beneficial effects:

[0029] The preparation method first extracts the pericarpium citri reticulatae essential oil, and then prepares the slow-release limiting ball by using pericarpium citri reticulatae powder, graphite and the pericarpium citri reticulatae essential oil as raw materials through wet granulation, spheroidization and freeze-drying. The slow-release limiting ball has a particle size of 6-7 mm. The pericarpium citri reticulatae powder and graphite are used as a load skeleton to adsorb and load the pericarpium citri reticulatae essential oil. When the smoke flows through the slow-release limiting ball, the pericarpium citri reticulatae essential oil is not released quickly at one time due to the adsorption of graphite and pericarpium citri reticulatae, but can be slowly released, thereby improving the consistency of aroma release. In addition, the aroma components contained in the pericarpium citri reticulatae powder are further decomposed and volatilized during the heating process, thereby further enhancing the aroma.

[0030] The slow-release limiting ball has a spherical structure, and the size uniformity of the spherical material is better. The slow-release limiting ball can be smoothly filled without adjusting the feeding angle, and therefore is convenient to fill. The particle size of the slow-release limiting ball is 6-7 mm, which is slightly smaller than the inner diameter of the hollow section in the conventional heated cigarette. By arranging the slow-release limiting ball at the front end of the granular section in the hollow section, on the one hand, the relatively low temperature of the smoke flowing through the hollow section is conducive to reducing the volatilization / decomposition rate of the heat-sensitive aroma components in the slow-release limiting ball; on the other hand, the material in the granular section can also be blocked and limited to a certain extent.

[0031] In summary, the slow-release limiting ball of the application can slowly release aroma when the heated cigarette is heated, impart a certain sweet and smooth feeling to the smoke, and also has a certain blocking and limiting effect on the material in the granular section.

[0032] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to the like parts throughout the several views, and in which the exemplary embodiments of the present application are shown.

[0034] Figure 1 is a structural schematic diagram of a heated cigarette prepared by an embodiment of the application;

[0035] Figure 2 is a top view schematic diagram of a cigarette paper in an embodiment of the application;

[0036] Figure 3 is a schematic side view of a cigarette paper in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0038] The terms used in the present application are merely for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a," "an," and "the" used in the present application and its claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present application means and includes any or all possible combinations of one or more associated listed items.

[0039] It should be understood that although the terms "first", "second", "third", etc. are used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0040] In order to solve the problem of uneven aroma release of heated cigarettes, the present inventors consider using pericarpium citri reticulatae as the main raw material to add flavor, and adjusting the processing technology and product form to prepare a spheroid with aroma slow-release and limiting function, i.e. the slow-release and limiting spheroid described in the present application.

[0041] The present embodiment provides a preparation method of a slow-release and limiting spheroid for heated cigarettes, which comprises the following steps:

[0042] Step a1), taking pericarpium citri reticulatae as the raw material, and extracting pericarpium citri reticulatae essential oil by using steam distillation method;

[0043] Step a2), taking pericarpium citri reticulatae powder, graphite and the pericarpium citri reticulatae essential oil as the raw materials, and obtaining slow-release granule wet material by using wet granulation;

[0044] Step a3), performing rolling treatment on the slow-release granule wet material to obtain slow-release spheroid wet material;

[0045] Step a4), freeze-drying the slow-release sphere wet material to obtain the slow-release limiting sphere with a diameter of 6-7 mm.

[0046] The slow-release limiting sphere provided in the embodiment takes pericarpium citri reticulatae as the main raw material. Pericarpium citri reticulatae is the dried pericarp of citrus fruits, has the effects of regulating qi and invigorating the spleen, drying dampness and reducing phlegm, and contains limonene, terpinene, 2-methylamino-benzoic acid methyl ester, β-myrcene, caryophyllene and sweet orange aldehyde and other aroma components. Therefore, the preparation of the flavoring material from pericarpium citri reticulatae can impart a certain sweet and smooth feeling to the smoke. In the above preparation process, first, pericarpium citri reticulatae essential oil is extracted according to step a1. In the embodiment, the essential oil is extracted by steam distillation. The step is specifically optimized as follows:

[0047] The pericarpium citri reticulatae is cut into pieces to obtain pericarpium citri reticulatae pieces;

[0048] The pericarpium citri reticulatae pieces are mixed with 10-15 times the amount of water, heated and refluxed for 1-4 h, and pericarpium citri reticulatae essential oil is collected.

[0049] The traditional tobacco flavoring process is to spray the extracted flavoring material after dilution and other treatments to the surface of the tobacco / tobacco particles. However, the pericarpium citri reticulatae essential oil is rich in heat-sensitive aroma components, which will be quickly released in a high-temperature environment. In order to solve this problem, the essential oil is prepared into a state of being loaded by a particle skeleton according to step a2. Specifically, step a2 is a step of preparing a slow-release particle wet material by wet granulation with pericarpium citri reticulatae powder, graphite and pericarpium citri reticulatae essential oil as raw materials. The pericarpium citri reticulatae powder and graphite together constitute the particle skeleton, and the graphite has excellent adsorption performance. Together, they constitute the particle skeleton and can adsorb and load the pericarpium citri reticulatae essential oil. When the heated cigarette is heated and the smoke flows through the slow-release limiting sphere, the pericarpium citri reticulatae essential oil will not be released all at once due to the adsorption of graphite and pericarpium citri reticulatae, but can be released slowly, thereby improving the consistency of aroma release. In addition, the pericarpium citri reticulatae powder itself contains aroma components that will volatilize during the heating process, thereby further enhancing the aroma.

[0050] In order to retain as much volatile aroma components in the pericarpium citri reticulatae as possible, the pericarpium citri reticulatae powder used in the step is preferably prepared according to the following method: The pericarpium citri reticulatae is freeze-dried and ground into powder to obtain pericarpium citri reticulatae powder. In the process of wet granulation, a bonding agent is preferably added to enhance the connection firmness between the materials, and distilled water and glycerol are added to facilitate particle formation. Further, step a2) can be specifically as follows:

[0051] The dried powder of pericarpium citri reticulatae, graphite and the pericarpium citri reticulatae essential oil are mixed with the adhesive, and then placed in a wet granulator for stirring and mixing until uniform, and distilled water and glycerol are added during the stirring process; after uniform stirring, the wet granules are extruded and granulated to obtain the sustained-release granules; the mass ratio of the dried powder of pericarpium citri reticulatae, graphite and the pericarpium citri reticulatae essential oil to the adhesive is (90-95):(5-10):(2-10):(10-20); and the mass ratio of the distilled water, glycerol and dried powder of pericarpium citri reticulatae is 10:(1-2):(0.5-1).

[0052] The prepared sustained-release limiting ball is arranged in the hollow section of the heated cigarette and located at the front end of the granule section, which not only has the function of aroma release, but also can limit the tobacco granules of the granule section. Specifically, the particle size of the sustained-release limiting ball is slightly smaller than the inner diameter of the hollow section of the heated cigarette, so that it is arranged at the front end of the granule section and can block and limit the material of the granule section. Since the size of the sustained-release limiting ball is relatively large, in order to facilitate filling, the present embodiment further comprises a step of rounding the prepared granular material (i.e. the above-mentioned sustained-release granule wet material) after step a2), i.e. the above-mentioned step a3), the rounding function is to further shape the granular material to obtain spherical material. Compared with the granular material, the spherical material has more uniform size, and can be smoothly filled without adjusting the feeding angle.

[0053] The sustained-release limiting ball is obtained by freezing and drying the sustained-release ball wet material after rounding treatment, and the particle size of the sustained-release limiting ball is 6-7 mm. The function of freezing and drying is to remove the water in the wet material while avoiding damage to the heat-sensitive flavor components contained therein. The final prepared sustained-release limiting ball has a particle size of 6-7 mm, which is slightly smaller than the inner diameter of the hollow section of the conventional heated cigarette, and is arranged at the front end of the granule section in the hollow section. After heating the heated cigarette, on the one hand, the temperature of the smoke flowing through the hollow section is relatively low, which is beneficial to reduce the volatilization / decomposition rate of the heat-sensitive flavor components in the sustained-release limiting ball; on the other hand, due to the adsorption of graphite and pericarpium citri reticulatae in the sustained-release limiting ball, the flavor components are prevented from being carried away as a whole under the action of suction, thereby realizing slow release of aroma and improving the consistency of aroma release.

[0054] From the above, it can be seen that the preparation method of the sustained-release limiting ball for the heated cigarette provided by the present embodiment has the following advantages:

[0055] The preparation method first extracts the pericarpium citri reticulatae essential oil, and then prepares the sustained-release limiting ball by wet granulation, rounding and freeze-drying with pericarpium citri reticulatae powder, graphite and pericarpium citri reticulatae essential oil as raw materials, so that the particle size of the sustained-release limiting ball is 6-7 mm. The sustained-release limiting ball uses pericarpium citri reticulatae powder and graphite as a load skeleton to adsorb and load pericarpium citri reticulatae essential oil. When the flue gas flows through the sustained-release limiting ball, the pericarpium citri reticulatae essential oil can not be released quickly at one time due to the adsorption of graphite and pericarpium citri reticulatae, but can be slowly released, thereby improving the consistency of aroma release. In addition, the pericarpium citri reticulatae powder itself contains aroma components that are decomposed and volatilized during the heating process, thereby further enhancing the aroma.

[0056] The sustained-release limiting ball has a spherical structure, and the size uniformity of the spherical material is better. Therefore, the filling is smooth without adjusting the feeding angle, and the filling is convenient. The particle size of the sustained-release limiting ball is 6-7 mm, which is slightly smaller than the inner diameter of the hollow section in the conventional heated cigarette. By arranging the sustained-release limiting ball at the front end of the granular section in the hollow section, on the one hand, the relatively low temperature of the flue gas flowing through the hollow section is conducive to reducing the volatilization / decomposition rate of the heat-sensitive aroma components in the sustained-release limiting ball; on the other hand, the material in the granular section can also be blocked and limited to a certain extent.

[0057] In summary, the sustained-release limiting ball provided by the embodiment of the present application can slowly release aroma when the heated cigarette is heated, impart a certain sweet and smooth feeling to the smoke, and also block and limit the material in the granular section to a certain extent.

[0058] Correspondingly, another embodiment of the present application also provides a sustained-release limiting ball prepared according to the method described in the above embodiment, and the specific embodiments and beneficial effects are the same as those of the previous embodiment, which will not be described here.

[0059] Another embodiment of the present application also provides a preparation method of a heated cigarette, which comprises the following steps:

[0060] A strip-shaped protrusion is arranged on the inner side of the cigarette paper in the circumferential direction, and a paper spring is arranged in the radial direction; the paper spring is located at one end of the strip-shaped protrusion close to the filter;

[0061] The cigarette paper is rolled up to form a paper tube; the strip-shaped protrusion forms a limiting stop ring, and a granular section is formed between the end of the paper tube and the limiting stop ring; a limiting section is formed between the limiting stop ring and the free end of the paper spring;

[0062] Tobacco particles are filled into the paper tube, so that the tobacco particles are arranged in the granular section;

[0063] The sustained-release limiting ball described in the above embodiment is filled into the paper tube, and is pressed into the limiting section, so that one side of the sustained-release limiting ball abuts against the limiting stop ring, and the other side abuts against the free end of the paper spring;

[0064] The filter is assembled to obtain a heated cigarette.

[0065] The structure of the heated cigarette prepared according to the above method is shown in Figure 1 The preparation process is as follows: first, a strip-shaped protrusion 2 and a paper spring 3 are processed on the inner side of the cigarette paper 1, please refer to Figure 2 and Figure 3 Then, the cigarette paper is rolled up, and the strip-shaped protrusion 2 forms a limiting stop ring 2', which forms a particle section between the limiting stop ring 2' and the end of the paper tube, which is the end close to the heating needle, i.e. the end away from the filter 4. The length of the particle section is preferably 12-15 mm. The limiting stop ring 2' and the slow-release limiting ball 5 together form a blocking surface, which limits the tobacco particles 6 in the particle section. The height of the strip-shaped protrusion 2 is preferably 1-3 mm. The strip-shaped protrusion 2 can be formed by bonding paperboard or by curing adhesive, i.e. coating a certain height of adhesive on the inner side of the cigarette paper, and the adhesive forms the strip-shaped protrusion after curing. The strip-shaped protrusion can also be formed by the following method: using a protruding template to press the cigarette paper to form a paperboard with a protruding structure, then rolling the cigarette paper into a paper tube, and placing the protruding part inside the paper tube, and then using a paper of the same width to wrap the outer surface of the paper tube at the position corresponding to the protruding part, thereby preventing the protruding part from returning to its original state.

[0066] The paper spring 3 functions to limit the slow-release limiting ball 5 and prevent it from moving to reduce the limiting effect on the particle section. The slow-release limiting ball 5 is installed between the free end of the paper spring 3 and the limiting stop ring 2', i.e. in the limiting section, and is pressed against the head end of the limiting stop ring 2' under the restoring force of the free end of the paper spring 3, thereby forming a relatively closed limiting surface with the limiting stop ring 2' and the slow-release limiting ball 5, preventing the tobacco particles 6 in the particle section from entering the hollow section. The number of paper springs 3 can be one, two or more, and when the number of paper springs is more than one, they are preferably evenly arranged along the circumference of the cigarette paper. The fixed end of the paper spring 3 can be fixed to the inner side of the cigarette paper 1 by adhesive. Those skilled in the art will understand that in order to ensure that the free end of the paper spring 3 can exert a restoring force on the slow-release limiting ball 5, the horizontal distance between the free end of the paper spring 3 and the strip-shaped protrusion 2 is less than the particle size of the slow-release limiting ball 5.

[0067] During filling, the tobacco particles 6 are first filled into the bottom end (particle section end) of the paper tube, and the tobacco particles 6 are relatively small in size and can be stacked in the tobacco particle section through the limiting stop ring 2'. Those skilled in the art will understand that in order to facilitate the filling of the tobacco particles 6, the inner diameter of the limiting stop ring 2' is greater than the maximum size of the tobacco particles 6. The tobacco particles 6 are preferably prepared by the following method: using waste tobacco dust as raw material for wet granulation to obtain tobacco particles, and the particle size of the tobacco particles is 1-2 mm. This method can realize the reuse of tobacco resources and help reduce the cost of heated cigarettes.

[0068] After the tobacco particles 6 are filled, the slow-release limiting ball 5 is filled into the paper tube, and a certain external force is applied to press it into the limiting section, so that one side of the slow-release limiting ball 5 abuts against the limiting ring 2', and the other side abuts against the free end of the paper spring 3; thus, the slow-release limiting ball 5 is abutted against the head end of the limiting ring 2' under the restoring force of the paper spring 3, and plays a limiting role on the tobacco particles 6 in the particle section. After the slow-release limiting ball 5 is filled, the filter 4 is assembled in a conventional manner, and a heated cigarette is obtained.

[0069] After the heated cigarette is heated, when the smoke flows through the slow-release limiting ball, the citrus peel essential oil loaded in the slow-release limiting ball, and the flavor components split or released by the citrus peel powder in the heating state, enter the oral cavity of the smoker along with the smoke, and play a role in enriching the aroma and increasing the moist feeling. Moreover, due to the adsorption of the citrus peel essential oil by the framework of the slow-release limiting ball, the release speed of the citrus peel essential oil is reduced, avoiding the rapid release of the aroma components, and improving the consistency of the aroma.

[0070] Another embodiment of the present application also provides a heated cigarette as described above, which is prepared according to the method of the above embodiment. The heated cigarette has the advantages of rich aroma and good aroma consistency.

[0071] The technical solutions of the present application will be further described below in combination with specific embodiments.

[0072] Embodiment 1

[0073] 1. Preparation of slow-release limiting ball

[0074] The citrus peel is cut into pieces, 200g of the citrus peel is added into a beaker, 10 times the amount of water is added, the mixture is transferred to a round-bottom flask of a volatile oil extraction device, and heated to reflux for 2h, and the obtained citrus peel essential oil is collected for standby use;

[0075] Another piece of citrus peel is freeze-dried, ground into powder, and then the adhesive, graphite and essential oil are added, and the mass ratio of the citrus peel powder, adhesive, graphite and citrus peel essential oil is 90:10:5:5, and then the mixture is stirred and mixed uniformly in a wet granulator, and a small amount of distilled water and glycerol is added during the stirring process, and the mass ratio of the distilled water, glycerol and citrus peel powder is 10:1:0.5, and after sufficient stirring, the slow-release granule wet material is obtained;

[0076] The slow-release granule wet material is placed into a rolling machine to prepare slow-release spherical wet material, and the particle size of the slow-release spherical wet material is 6mm;

[0077] The slow-release granule wet material is freeze-dried to obtain the slow-release limiting ball with citrus peel aroma.

[0078] 2. Preparation of tobacco particles

[0079] The tobacco waste is ground and wet granulated to obtain tobacco granules with a particle size of 1.5 mm.

[0080] 3. Preparing a heated cigarette

[0081] The cigarette paper shown in Figure 2 and 3 is processed, the granule section length is 15 mm, the strip-shaped protrusion is formed by curing the adhesive, and the height is 2 mm. The cigarette paper is rolled to form a paper tube;

[0082] The tobacco granules are poured into the paper tube, and the tobacco granules are placed in the granule section;

[0083] The slow-release limiting ball is poured into the paper tube and pressed into the limiting section;

[0084] The filter is assembled.

[0085] Example 2

[0086] 1. Preparing a slow-release limiting ball

[0087] The dried pericarpium citri reticulatae is ground, 200 g of the dried pericarpium citri reticulatae is added to a beaker, 15 times the amount of water is added, the mixture is transferred to a round-bottom flask of a volatile oil extraction device, heated to reflux for 1 h, and the obtained pericarpium citri reticulatae essential oil is collected for standby;

[0088] Another pericarpium citri reticulatae is freeze-dried, ground, and mixed with an adhesive, graphite, and essential oil. The mass ratio of the pericarpium citri reticulatae powder, the adhesive, the graphite, and the pericarpium citri reticulatae essential oil is 95:20:10:10. The mixture is placed in a wet granulator and stirred to mix uniformly. A small amount of distilled water and glycerol is added during the stirring process. The mass ratio of the distilled water, the glycerol, and the pericarpium citri reticulatae powder is 10:2:1, respectively. After sufficient stirring, the slow-release granule wet material is obtained.

[0089] The slow-release granule wet material is placed in a roller compactor to prepare a slow-release ball wet material. The particle size of the slow-release ball wet material is 7 mm.

[0090] The slow-release ball wet material is freeze-dried to obtain a slow-release ball with pericarpium citri reticulatae aroma.

[0091] 2. Preparing tobacco granules

[0092] The tobacco waste is ground and wet granulated to obtain tobacco granules with a particle size of 2 mm.

[0093] 3. Preparing a heated cigarette

[0094] The cigarette paper shown in Figure 2 and 3 is processed, the granule section length is 2 mm, the strip-shaped protrusion paperboard is fixed on the cigarette paper by an adhesive, and the paperboard height is 1.5 mm. The cigarette paper is rolled to form a paper tube;

[0095] The tobacco particles are filled into the paper tube and placed in the particle section;

[0096] The slow-release limiting balls are filled into the paper tube and pressed into the limiting section;

[0097] The filter is assembled.

[0098] Comparative Example

[0099] 1. The tobacco particles are prepared, and the pericarpium citri reticulatae particles are prepared in the same way as in Example 1;

[0100] 2. The heated cigarette is prepared

[0101] The cigarette paper is rolled to form a paper tube;

[0102] The mixed particles of the tobacco particles and the pericarpium citri reticulatae particles are filled into the paper tube, and then the limiting member is installed, and the length of the particle section is 15 mm;

[0103] The filter is assembled.

[0104] The heated cigarettes prepared in Example 1, Example 2 and the comparative example are subjected to smoking test, and the test results are as follows:

[0105] The particle-type heated cigarettes prepared in Example 1 and Example 2 have improved tobacco richness, pericarpium citri reticulatae characteristic aroma, soft smoke and slow-release aroma. In Example 1, the pericarpium citri reticulatae aroma is obvious in the first two puffs, and starts to decrease from the third puff, and obviously decreases from the sixth puff. In Example 2, the pericarpium citri reticulatae aroma is obvious in the first three puffs, and slightly decreases after the third puff, and obviously decreases from the sixth and seventh puffs. In the comparative example, the characteristic aroma is obvious in the first two puffs, but obviously decreases from the third puff, and almost has no characteristic aroma after the fifth puff.

[0106] The above has described the embodiments of the present application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications or improvements to the technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A method for producing a heat-not-burn cigarette, characterized by, It comprises the following steps: A strip-shaped protrusion is arranged on the inner side of the cigarette paper in the circumferential direction, and a paper spring is arranged in the radial direction; the paper spring is located at one end of the strip-shaped protrusion close to the filter; The cigarette paper is rolled to form a paper cylinder; the strip-shaped protrusion forms a limiting stop ring, and a particle section is formed between the end of the paper cylinder and the limiting stop ring; a limiting section is formed between the limiting stop ring and the free end of the paper spring; Tobacco particles are filled into the paper cylinder, so that the tobacco particles are arranged in the particle section; A slow-release limiting ball is filled into the paper cylinder and is pressed into the limiting section, so that one side of the slow-release limiting ball abuts against the limiting stop ring and the other side abuts against the free end of the paper spring; The filter is assembled to obtain a heated cigarette; The slow-release limiting ball is prepared according to the following steps: Step a1), using dried tangerine peel as raw material, tangerine peel essential oil is extracted by steam distillation; Step a2), using tangerine peel powder, graphite and the tangerine peel essential oil as raw materials, slow-release granular wet material is obtained by wet granulation; Step a3), the slow-release granular wet material is subjected to roundness processing to obtain slow-release spherical wet material; Step a4), the slow-release spherical wet material is subjected to freeze-drying to obtain slow-release limiting balls with a particle size of 6-7 mm.

2. The method of claim 1, wherein the heating cigarette is prepared by a method comprising: The step a1) is specifically: The dried tangerine peel is chopped to obtain tangerine peel fragments; The tangerine peel fragments are mixed with 10-15 times the amount of water, heated to reflux for 1-4 hours, and tangerine peel essential oil is collected.

3. The method for preparing heated cigarettes according to claim 1, characterized in that, The tangerine peel powder in step a2) is prepared according to the following method: The dried tangerine peel is ground into tangerine peel powder.

4. The method of claim 3, wherein the heating cigarette is prepared by a method comprising: The step a2) is specifically: The tangerine peel powder, graphite and the tangerine peel essential oil are mixed with an adhesive and then placed in a wet granulator for stirring and mixing until uniform, and distilled water and glycerol are added during the stirring process; after uniform stirring, the mixture is extruded and granulated to obtain slow-release granular wet material; the mass ratio of the tangerine peel powder, graphite and the tangerine peel essential oil to the adhesive is (90-95):(5-10):(2-10):(10-20); the mass ratio of the distilled water, glycerol and tangerine peel powder is 10:(1-2):(0.5-1), respectively.

5. The method for preparing heated cigarettes according to claim 1, characterized in that, The tobacco particles are prepared according to the following method: waste tobacco dust is used as raw material for wet granulation to obtain tobacco particles with a particle size of 1-2 mm.

6. The method for preparing heated cigarettes according to claim 1, characterized in that, The height of the strip-shaped protrusion is 1-3 mm.

7. The method for preparing heated cigarettes according to claim 1, characterized in that, The length of the particle section is 12-15 mm.

8. A heat-not-burn cigarette, characterized by It is prepared according to the method of any one of claims 1-7.

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