A method of heating a composite cigarette

Abstract

The patent discloses a composite forming method of a heated cigarette, comprising: a first segment containing an aerosol generating substrate, the first segment and a second segment are alternately combined, and a first composite segment is formed by rolling and wrapping with a first packaging material; a third segment and a fourth segment are alternately combined, and a second composite segment is formed by rolling and wrapping with a second packaging material; the first composite segment is cut to obtain an aerosol substrate composite segment, the aerosol substrate composite segment contains at least part of the first segment and at least part of the second segment; the second composite segment is cut to obtain a filter composite segment, the filter composite segment contains at least part of the third segment and at least part of the fourth segment; and the aerosol substrate composite segment and the filter composite segment are rolled and wrapped with a third packaging material to form the heated cigarette. The patent realizes the purposes of stable combination of a tobacco rod and a filter stick, difficulty in breaking, and small quality fluctuation of a cigarette.

Description

Technical Field

[0001] This patent belongs to the field of novel tobacco technology, specifically relating to a composite molding method for heated cigarettes. Background Technology

[0002] Heated cigarettes are typically composed of filter rods and tobacco raw material segments, with an overall structure generally featuring a three-, four-, or five-segment layout. In existing forming processes, one method involves bonding the multi-component composite filter rod with a pre-rolled tobacco stick; another method involves integrating the tobacco stick with each functional filter segment into a single composite molding process. Both of these methods generally suffer from the following shortcomings: firstly, the structural strength at the junction of the tobacco stick and filter rod is insufficient, making them prone to bending or breakage; secondly, the consistency of cigarette quality is poor, with significant batch-to-batch and inter-cigarette variations. Therefore, a new heating cigarette forming method is needed to address these problems. Summary of the Invention

[0003] The purpose of this patent is to provide a composite molding method for heated cigarettes, so as to achieve a stable bond between the cigarette stick and the filter rod, making it less prone to breakage, and minimizing fluctuations in cigarette quality.

[0004] To solve the above-mentioned technical problems, this patent adopts the following technical solution: A composite molding method for heated cigarettes includes the following steps: Step A: The first segment contains an aerosol generating matrix. The first segment and the second segment are alternately combined and rolled up using a first packaging material to form a first composite segment. The thickness of the first packaging material is 20-30 μm, 30-40 μm, 40-50 μm, 50-60 μm, or 60-70 μm. Step B: The third and fourth segments are alternately combined and rolled up using the second packaging material to form the second composite segment; the thickness of the second packaging material is 20-30 μm, 30-40 μm, 40-50 μm, 50-60 μm or 60-70 μm; Step C: The first composite segment is cut to obtain an aerosol matrix composite fragment, which contains at least a portion of the first fragment and at least a portion of the second fragment; The second composite segment is cut to obtain a filter tip composite segment, which contains at least a portion of the third segment and at least a portion of the fourth segment; The aerosol matrix composite segment and the filter tip composite segment are rolled into heated cigarettes using a third packaging material; the thickness of the third packaging material is 30-40 μm, 40-50 μm, 50-60 μm, 60-70 μm, 70-80 μm, 80-90 μm or 90-100 μm.

[0005] Furthermore, the length of the aerosol matrix composite segment is 0.45-0.50, 0.50-0.55, or 0.55-0.60 of the total length of the heated cigarette; the length of the filter tip composite segment is 0.40-0.45, 0.45-0.50, or 0.50-0.55 of the total length of the heated cigarette.

[0006] Furthermore, the second segment is a hollow filter rod; The third segment is the cooling segment; The fourth segment is a cellulose acetate filter rod.

[0007] Furthermore, step A includes the following steps: Step A1: Cut a section of hollow filter rod into a first-end filter rod and a last-end filter rod; Step A2: The first segment includes a first cigarette stick and a second cigarette stick, which are combined and arranged in the order of the first end filter rod, the first cigarette stick, the hollow filter rod, the second cigarette stick and the tail end filter rod, and rolled up with the first packaging material to form the first composite segment.

[0008] Furthermore, step B includes the following steps: Step B1: Cut a cooling section into a first-end tube and a last-end tube; Step B2: The fourth segment includes the first cellulose acetate filter rod and the second cellulose acetate filter rod, which are arranged in the order of the first end tube, the first cellulose acetate filter rod, the cooling section, the second cellulose acetate filter rod and the tail end tube, and are rolled up with the second packaging material to form the second composite segment.

[0009] Furthermore, step C includes the following steps: Step C1: The first composite segment is cut with a cutter at the center of the first cigarette bar, the first cigarette bar, and the hollow filter rod arranged between the first cigarette bar and the first cigarette bar to obtain an aerosol matrix composite segment. Step C2: The second composite section is cut with a cutter at the center of the first cellulose acetate filter rod, the second cellulose acetate filter rod, and the cooling section located between the first cellulose acetate filter rod and the second cellulose acetate filter rod to obtain the filter tip composite segment. Step C3: The aerosol matrix composite segment and the filter composite segment are rolled into heated cigarettes using a third packaging material.

[0010] Furthermore, the length of the first segment is 0.45-0.50, 0.50-0.55, or 0.55-0.60 times the total length of the first composite segment.

[0011] Furthermore, the length of the third segment is 0.4-0.5, 0.5-0.6, or 0.6-0.7 times the total length of the second composite segment.

[0012] This patent further provides heated cigarettes obtained by the above-mentioned composite molding method for heated cigarettes.

[0013] The aerosol-generating matrix contained in the first segment produces aerosols that can be pumped out under heating conditions.

[0014] The aerosol generating matrix may include solid and / or liquid components.

[0015] Preferably, the aerosol generating matrix is ​​a solid aerosol generating matrix.

[0016] Preferably, the aerosol-generating matrix includes nicotine. In some preferred embodiments, the aerosol-generating matrix includes tobacco.

[0017] Alternatively or additionally, the aerosol generating matrix may include a tobacco-free aerosol forming material. For example, the aerosol forming material may be a tablet comprising nicotine salts and an aerosol forming agent.

[0018] Alternatively, the solid aerosol generating matrix may contain tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds released when the solid aerosol generating matrix is ​​heated. The solid aerosol generating matrix may also contain one or more capsules comprising, for example, additional tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds, and such capsules may melt during heating of the solid aerosol generating matrix.

[0019] Alternatively, the solid aerosol generating matrix can be disposed on or embedded in a heat-stabilized carrier. The carrier can be in the form of powder, granules, pellets, fragments, strips, bars, or sheets. The solid aerosol generating matrix can be arranged on the surface of the carrier, for example, in the form of sheets, foams, gels, or slurries. The solid aerosol generating matrix can be placed on the entire surface of the carrier, or alternatively, it can be patterned to provide uneven fragrance delivery during use.

[0020] The solid aerosol generating matrix may include one or more of the following: powder, granules, pellets, fragments, strips, bars, or sheets, and may contain one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco ribs, flat tobacco, and homogenized tobacco.

[0021] In this patent, homogeneous tobacco material refers to a material formed by aggregating particulate tobacco.

[0022] In this patent, the term "aggregate" refers to a sheet that is generally transverse to the longitudinal axis of a heated cigarette, and is wound, folded, compressed, or shrunk.

[0023] In this patent, sheet refers to a layered element having a width and length substantially greater than its thickness.

[0024] Preferably, the aerosol generating matrix comprises an aggregated textured sheet of homogeneous tobacco material.

[0025] In this patent, textured sheet refers to a sheet that has been rolled, embossed, stamped, perforated, or otherwise deformed. The aerosol-generating matrix may comprise an aggregated textured sheet of homogeneous tobacco material, including a plurality of spaced-apart notches, protrusions, perforations, or combinations thereof. Preferably, the aerosol-generating matrix comprises an aggregated rolled sheet of homogeneous tobacco material. The use of textured sheets of homogeneous tobacco material can advantageously promote the aggregation of homogeneous tobacco material sheets to form the aerosol-generating matrix.

[0026] In this patent, "curled sheet" refers to a sheet having a plurality of substantially parallel ridges or folds. Preferably, when the heated cigarette has been assembled, the substantially parallel ridges or folds extend along or parallel to the longitudinal axis of the heated cigarette. This advantageously promotes the aggregation of the curled sheet of homogeneous tobacco material to form an aerosol-forming matrix. However, it will be understood that the curled sheet for the homogeneous tobacco material contained in the heated cigarette may alternatively or additionally have a plurality of substantially parallel ridges or folds arranged at acute or obtuse angles to the longitudinal axis of the heated cigarette when the heated cigarette has been assembled.

[0027] In this patent, "aerosol forming agent" is used to describe any suitable known compound or mixture of compounds that promotes aerosol formation in use and is substantially resistant to thermal degradation at the operating temperature of heated cigarettes.

[0028] Suitable aerosol forming agents are known in the art and include, but are not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol forming agents are polyols or mixtures thereof, such as propylene glycol, triethylene glycol, 1,3-butanediol, and most preferably glycerol.

[0029] The aerosol generating matrix may include a single aerosol forming agent. Alternatively, the aerosol generating matrix may include a combination of two or more aerosol forming agents.

[0030] Preferably, the aerosol generating matrix has an aerosol forming agent content of more than 5% by dry weight. More preferably, the aerosol generating matrix may have an aerosol forming agent content between about 5% and about 30% by dry weight. In one embodiment, the aerosol generating matrix has an aerosol forming agent content of about 20% by dry weight.

[0031] Hollow filter rods can be formed from any suitable material or combination of materials. For example, hollow filter rods can be formed from one or more materials selected from the group consisting of: cellulose acetate; paperboard; crimped paper, such as crimped heat-resistant paper or crimped parchment; and polymeric materials, such as low-density polyethylene (LDPE). In a preferred embodiment, the hollow filter rod is formed from cellulose acetate.

[0032] In a preferred embodiment, the hollow filter rod includes a hollow cellulose acetate tube.

[0033] This patent provides a composite molding method for heated cigarettes. Through the first composite section and the second composite section, the combination of the cigarette stick and the filter rod can be ensured to be more stable, the cigarette stick is not easy to break during use, the preparation process is relatively simple, the quality of the cigarette fluctuates less, and it is beneficial to improve production efficiency. Attached Figure Description

[0034] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0035] Figure 1 This is a schematic diagram of the first composite segment in this patent; Figure 2 This is a schematic diagram of the second composite segment in this patent; Figure 3 This is a diagram showing the cutting position of the first composite segment in this patent; Figure 4 This is a diagram showing the cutting position of the second composite segment in this patent; Figure 5 This is a schematic diagram of the heated cigarette in this patent. Figure 6 This is a schematic diagram of a heated cigarette in a comparative example.

[0036] The reference numerals in the attached figures are explained as follows: Cigarette packs: 1, 1' First pack of cigarettes: 11 Second pack of cigarettes: 12 Hollow filter rods: 2, 2' First-end filter rod: 21 Tail end filter rod: 22 First packaging material: 3 Paper tubes: 4, 4' Head end tube: 41 Tail end tube: 42 Acetate fiber filter rod: 5, 5' First cellulose acetate filter rod: 51 Second cellulose acetate filter rod: 52 Second packaging material: 6, 6' Third packaging material: 7, 7' Detailed Implementation

[0037] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0038] This specification also uses several compound terms to describe devices, components, equipment, etc. that include more than one function, or to assign additional functions to a corresponding device, component, equipment, etc. Those skilled in the art will understand that such compound terms can be implemented by a single or multiple devices, components, equipment, etc., as long as they are reasonable under the interpretation rules of this patent terminology.

[0039] It should be noted that in this specification, similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and interpreted in subsequent figures. In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined as having the following meanings: The terms “comprising” or “having” have the same meaning as “containing”, and also include other forms of the term, such as the gerund and singular forms in English, meaning including but not limited to, and not intended to exclude, for example, other elements, components, integers or steps. All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0040] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0041] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0042] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the inventions fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include: The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to this patent application date), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to this patent application date), published by Wiley; Machinery's Handbook (32nd edition and other editions prior to this patent application date), published by IndustrialPress Inc.; Mechanical Design Handbook (6th edition and other editions prior to this patent application date), edited by Cheng Daxian, published by Chemical Industry Press; and Modern Mechanical Design Handbook (6th edition and other editions prior to this patent application date), edited by Wen Bangchun, published by Machinery Industry Press.

[0043] This patent will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of this patent. It will be clear to those skilled in the art that this patent can also be used in a variety of other applications.

[0044] Example 1

[0045] 1. Preparation of the first composite segment

[0046] A cigarette (or long cigarette stick) with a total length of 96 mm is cut into a cigarette stick 1 as the first segment. The cigarette stick 1 contains an aerosol generating matrix that generates an aerosol that can be inhaled under heating conditions. The length of the cigarette stick 1 is 24 mm. The cigarette stick 1 contains wrapping paper that wraps the tobacco. The thickness of the wrapping paper can be selected from 20-100 μm. In this embodiment, the thickness of the wrapping paper is preferably 20 μm.

[0047] A hollow filter rod 2 is cut out from a cigarette (or a long hollow filter rod) with a total length of 80 mm as a second segment, wherein the hollow filter rod 2 is 20 mm long; Using a composite equipment, cigarette sticks 1 and hollow filter rods 2 are alternately combined according to a set length. Hollow filter rods 2 are arranged between adjacent cigarette sticks 1 for separation. A first packaging material 3 (i.e., forming paper) is rolled and fixed to form a first composite segment with a length of 88 mm. The thickness of the first packaging material 3 can be selected as 60 μm. The structure of the first composite segment is as follows: Figure 1 As shown.

[0048] The hollow filter rod 2 is divided into two equal halves to form a first-end filter rod 21 and a last-end filter rod 22. The length of the first-end filter rod 21 is 10mm and the length of the last-end filter rod 22 is 10mm.

[0049] The first and second cigarette bars 1 at the beginning and end of the first composite section are the first cigarette bar 11 and the second cigarette bar 12, respectively; the first end filter rod 21 is arranged at the other end of the first cigarette bar 11 away from the hollow filter rod 2, and the last end filter rod 22 is arranged at the other end of the second cigarette bar 12 away from the hollow filter rod 2.

[0050] 2. Preparation of the second composite segment

[0051] A cigarette (or a long paper tube) with a total length of 96mm is cut into a paper tube (i.e., the cooling section) as the third segment, wherein the length of the paper tube is 32mm.

[0052] A fourth segment is made by cutting out an acetate filter rod 5 from a cigarette (or a long acetate filter rod) with a total length of 84 mm. The acetate filter rod 5 has a length of 14 mm.

[0053] Using a composite equipment, paper tubes 4 and cellulose acetate filter rods 5 are alternately combined according to a set length. Paper tubes 4 are arranged between adjacent cellulose acetate filter rods 5 for isolation. A second packaging material 6 (wrapping paper) is rolled and fixed to form a second composite section with a length of 92 mm. The thickness of the second packaging material 6 can be selected as 30 μm. The structure of the second composite section is as follows: Figure 2 As shown.

[0054] In this process, a section of paper tube 4 is divided into two equal halves to form a first end tube 41 and a last end tube 42. The length of the first end tube 41 is 16mm, and the length of the last end tube 42 is 16mm.

[0055] The tobacco sticks 1 at the beginning and end of the first composite section are the first cellulose acetate filter rod 51 and the second cellulose acetate filter rod 52, respectively; the beginning tube 41 is arranged at the other end of the first cellulose acetate filter rod 51 away from the paper tube 4, and the end tube 42 is arranged at the other end of the second cellulose acetate filter rod 52 away from the paper tube 4.

[0056] 3. Preparation of heated cigarette sticks

[0057] like Figure 3 As shown, the first composite segment is cut by a cutter at the center of the first cigarette bar 11, the first cigarette bar 11, and the hollow filter rod 2 arranged between the first cigarette bar 11, thereby obtaining four aerosol matrix composite segments that are fixed by the first packaging material.

[0058] In the aerosol matrix composite segment, the length of cigarette bar 1 is 12mm, and the length of hollow filter rod 2 is 10mm.

[0059] like Figure 4 As shown, the second composite segment is cut by a cutter at the center of the first cellulose acetate filter rod 51, the second cellulose acetate filter rod 52, and the paper tube 4 arranged between the first cellulose acetate filter rod 51 and the second cellulose acetate filter rod 52, thereby obtaining four filter tip composite segments that are fixed by the second packaging material roll.

[0060] In the filter tip composite segment, the paper tube 4 has a length of 16mm, and the cellulose acetate filter rod 5 has a length of 7mm.

[0061] The aerosol matrix composite segment and the filter tip composite segment are wrapped with a third packaging material 7 (tip paper) using a splicing device to form a heated cigarette. The thickness of the third packaging material 7 can be selected as 70 μm. The cigarette structure is as follows: Figure 5 As shown, the cigarette bar 1, hollow filter rod 2, paper tube 4 and cellulose acetate filter rod 5 are arranged sequentially from the far end to the near end of the mouthpiece, with a total cigarette length of 45mm.

[0062] Example 2

[0063] 1. Preparation of the first composite segment

[0064] A cigarette (or long cigarette stick) with a total length of 90 mm is cut into a cigarette stick 1 as the first segment. The cigarette stick 1 contains an aerosol generating matrix that generates an aerosol that can be inhaled under heating conditions. The length of the cigarette stick 1 is 30 mm. The cigarette stick 1 contains wrapping paper that wraps the tobacco. The thickness of the wrapping paper can be selected from 20-100 μm. In this embodiment, the thickness of the wrapping paper is preferably 20 μm.

[0065] A hollow filter rod 2 is cut out from a cigarette (or a long hollow filter rod) with a total length of 60 mm as a second segment, wherein the hollow filter rod 2 is 20 mm long; Using a composite equipment, cigarette sticks 1 and hollow filter rods 2 are alternately combined according to a set length. Hollow filter rods 2 are arranged between adjacent cigarette sticks 1 for separation. A first packaging material 3 (i.e., forming paper) is rolled and fixed to form a first composite segment with a length of 100 mm. The thickness of the first packaging material 3 can be selected as 60 μm. The structure of the first composite segment is as follows: Figure 1 As shown.

[0066] The hollow filter rod 2 is divided into two equal halves to form a first-end filter rod 21 and a last-end filter rod 22. The length of the first-end filter rod 21 is 10mm and the length of the last-end filter rod 22 is 10mm.

[0067] The first and second cigarette bars 1 at the beginning and end of the first composite section are the first cigarette bar 11 and the second cigarette bar 12, respectively; the first end filter rod 21 is arranged at the other end of the first cigarette bar 11 away from the hollow filter rod 2, and the last end filter rod 22 is arranged at the other end of the second cigarette bar 12 away from the hollow filter rod 2.

[0068] 2. Preparation of the second composite segment

[0069] A cigarette (or a long paper tube) with a total length of 80mm is cut into paper tube 4 as the third segment, wherein the length of paper tube 4 is 20mm.

[0070] A cigarette (or a long section of cellulose acetate filter rod) with a total length of 80 mm is cut into a cellulose acetate filter rod 5 as the fourth segment, wherein the length of the cellulose acetate filter rod 5 is 20 mm.

[0071] Using a composite equipment, paper tubes 4 and cellulose acetate filter rods 5 are alternately combined according to a set length. Paper tubes 4 are arranged to separate adjacent cellulose acetate filter rods 5. A second packaging material 6 (wrapping paper) is rolled and fixed to form a second composite section with a length of 80 mm. The thickness of the second packaging material 6 can be selected as 30 μm. The structure of the second composite section is as follows: Figure 2 As shown.

[0072] In this process, a section of paper tube 4 is divided into two equal halves to form a first end tube 41 and a last end tube 42. The length of the first end tube 41 is 10mm and the length of the last end tube 42 is 10mm.

[0073] The tobacco sticks 1 at the beginning and end of the first composite section are the first cellulose acetate filter rod 51 and the second cellulose acetate filter rod 52, respectively; the beginning tube 41 is arranged at the other end of the first cellulose acetate filter rod 51 away from the paper tube 4, and the end tube 42 is arranged at the other end of the second cellulose acetate filter rod 52 away from the paper tube 4.

[0074] 3. Preparation of heated cigarette sticks

[0075] like Figure 3 As shown, the first composite segment is cut by a cutter at the center of the first cigarette bar 11, the first cigarette bar 11, and the hollow filter rod 2 arranged between the first cigarette bar 11, thereby obtaining four aerosol matrix composite segments that are fixed by the first packaging material.

[0076] In the aerosol matrix composite segment, the length of cigarette bar 1 is 15mm, and the length of hollow filter rod 2 is 10mm.

[0077] like Figure 4 As shown, the second composite segment is cut by a cutter at the center of the first cellulose acetate filter rod 51, the second cellulose acetate filter rod 52, and the paper tube 4 arranged between the first cellulose acetate filter rod 51 and the second cellulose acetate filter rod 52, thereby obtaining four filter tip composite segments that are fixed by the second packaging material roll.

[0078] In the filter tip composite segment, the paper tube 4 has a length of 10mm, and the cellulose acetate filter rod 5 has a length of 10mm.

[0079] The aerosol matrix composite segment and the filter tip composite segment are wrapped with a third packaging material 7 (tip paper) using a splicing device to form a heated cigarette. The thickness of the third packaging material 7 can be selected as 70 μm. The cigarette structure is as follows: Figure 5 As shown, the cigarette bar 1, hollow filter rod 2, paper tube 4 and cellulose acetate filter rod 5 are arranged sequentially from the far end to the near end of the mouthpiece, with a total cigarette length of 45mm.

[0080] Comparative Example

[0081] The tobacco stick 1 contains wrapping paper that encloses the tobacco shreds. The thickness of the wrapping paper can be selected as 20 μm, forming an aerosol matrix composite segment.

[0082] In the aerosol matrix composite segment, the length of the cigarette bar 1' is 12 mm.

[0083] Hollow filter rod 2', paper tube 4' and cellulose acetate filter rod 5' are rolled together with a second packaging material 6' to form a filter tip composite segment. The thickness of the second packaging material 6' can be selected as 40 μm.

[0084] In the filter tip composite segment, the hollow filter rod 2' has a length of 10mm, the paper tube 4' has a length of 16mm, and the cellulose acetate filter rod 5' has a length of 7mm.

[0085] The aerosol matrix composite segment and the filter tip composite segment are wrapped with a third packaging material 7' (tip paper) using a splicing device to form a heated cigarette. The thickness of the third packaging material 7' can be selected as 70 μm. The cigarette structure is as follows: Figure 6As shown, the cigarette bar 1', hollow filter rod 2', paper tube 4' and cellulose acetate filter rod 5' are arranged sequentially from the far end to the near end of the mouthpiece, with a total cigarette length of 45mm.

[0086] To further illustrate the advantages of this patent, the performance of the heated cigarettes in Example 1 and the comparative example will be tested below.

[0087] 1. Suction closed-loop test

[0088] A closed-loop smoking test was conducted on 100 heated cigarettes from Example 1 and the comparative example using a smoking machine. The smoking machine was selected according to the ISO standard smoking mode.

[0089] The results showed that the integrity rate of the cigarette prepared using this patent was 100%. In the cigarette prepared using the comparative example, the aerosol matrix composite segment fracture rate was 14%, the filter tip composite segment fracture rate was 5%, and the complete cigarette rate was 81%. Therefore, this patent can achieve the advantages of a stable combination between the cigarette stick and the filter rod and that it is not easy to break.

[0090] 2. Production quality spot checks

[0091] Quality inspection was conducted on the heated cigarette production line of Example 1, i.e., random sampling was performed every hour to test parameters such as the circumference, length, draw resistance, and weight of the sample cigarettes. The weight test results of 30 sample cigarettes are shown in Table 1.

[0092] Table 1: Weight Detection Results of 30 Sample Cigarettes

[0093] As shown in Table 1, the average weight of the sampled cigarettes was 0.60, with a standard deviation of 0.01. Therefore, the heated cigarettes prepared using this process have relatively stable quality with minimal fluctuations. Furthermore, the circumference, length, and draw resistance of the sample cigarettes were all relatively stable.

[0094] The terms and expressions used in this specification are for illustrative purposes and not for limitation. Their use is not intended to exclude any equivalents of the features or portions thereof shown, but rather to facilitate the understanding that various modifications may be possible within the scope of this patent claim. Therefore, it should be understood that while this patent has been specifically disclosed through preferred embodiments, exemplary embodiments, and optional features, variations or modifications of the concepts disclosed herein may be adopted by those skilled in the art, and such variations and modifications are therefore considered to be within the scope of this patent as defined by the appended claims. The specific embodiments given in this specification are examples of useful embodiments of this patent, and it will be apparent to those skilled in the art that this patent can be implemented using many variations of the devices, device components, and method steps disclosed herein.

[0095] The foregoing description of specific embodiments fully discloses the general features of this patent, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this patent. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0096] Furthermore, the scope of this patent should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A composite molding method for heated cigarettes, characterized in that, Includes the following steps: Step A: The first segment contains an aerosol generating matrix. The first segment and the second segment are alternately combined and rolled up using a first packaging material to form a first composite segment. The thickness of the first packaging material is 20-30 μm, 30-40 μm, 40-50 μm, 50-60 μm, or 60-70 μm. Step B: The third and fourth segments are alternately combined and rolled up using the second packaging material to form the second composite segment; the thickness of the second packaging material is 20-30 μm, 30-40 μm, 40-50 μm, 50-60 μm or 60-70 μm; Step C: The first composite segment is cut to obtain an aerosol matrix composite fragment, wherein the aerosol matrix composite fragment contains at least a portion of the first fragment and at least a portion of the second fragment; The second composite segment is cut to obtain a filter tip composite segment, the filter tip composite segment containing at least a portion of the third segment and at least a portion of the fourth segment; The aerosol matrix composite segment and the filter composite segment are rolled together using a third packaging material to form the heated cigarette; the thickness of the third packaging material is 30-40 μm, 40-50 μm, 50-60 μm, 60-70 μm, 70-80 μm, 80-90 μm or 90-100 μm.

2. The composite molding method for heated cigarettes according to claim 1, characterized in that, The length of the aerosol matrix composite segment is 0.45-0.50, 0.50-0.55, or 0.55-0.60 of the total length of the heated cigarette; The length of the filter tip composite segment is 0.40-0.45, 0.45-0.50, or 0.50-0.55 of the total length of the heated cigarette.

3. The composite molding method for heated cigarettes according to claim 1, characterized in that, The second segment is a hollow filter rod; The third segment is the cooling segment; The fourth segment is a cellulose acetate filter rod.

4. The composite molding method for heated cigarettes according to claim 3, characterized in that, Step A includes the following steps: Step A1: Cut the hollow filter rod described in section A1 to obtain the first end filter rod and the last end filter rod; Step A2: The first segment includes a first cigarette stick and a second cigarette stick, which are arranged in the order of the first end filter rod, the first cigarette stick, the hollow filter rod, the second cigarette stick and the tail end filter rod, and rolled up using the first packaging material to form the first composite segment.

5. The composite molding method for heated cigarettes according to claim 4, characterized in that, Step B includes the following steps: Step B1: Divide the cooling section described in Section 1 into a first-end tube and a last-end tube; Step B2: The fourth segment includes a first cellulose acetate filter rod and a second cellulose acetate filter rod, which are arranged in the order of the first end tube, the first cellulose acetate filter rod, the cooling section, the second cellulose acetate filter rod and the tail end tube, and are rolled up with the second packaging material to form the second composite segment.

6. The composite molding method for heated cigarettes according to claim 5, characterized in that, Step C includes the following steps: Step C1: The first composite segment is cut with a cutter at the center of the first cigarette bar, the first cigarette bar, and the hollow filter rod arranged between the first cigarette bar and the first cigarette bar to obtain the aerosol matrix composite segment. Step C2: The second composite segment is cut with a cutter at the center of the first cellulose acetate filter rod, the second cellulose acetate filter rod, and the cooling segment arranged between the first cellulose acetate filter rod and the second cellulose acetate filter rod to obtain the filter tip composite segment. Step C3: The aerosol matrix composite segment and the filter composite segment are rolled together using the third packaging material to form the heated cigarette.

7. The composite molding method for heated cigarettes according to claim 1, characterized in that, The length of the first segment is 0.45-0.50, 0.50-0.55, or 0.55-0.60 times the total length of the first composite segment.

8. The composite molding method for heated cigarettes according to claim 1, characterized in that, The length of the third segment is 0.4-0.5, 0.5-0.6, or 0.6-0.7 times the total length of the second composite segment.

9. A heated cigarette obtained by the composite molding method of heated cigarettes according to any one of claims 1-8.

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