A solid-solid flavoring method for porous carbon from tobacco stems and its application in heated cigarettes.

Abstract

The present application relates to a kind of tobacco stem porous carbon solid-solid flavoring method and application in heating cigarette, the steps of flavoring method are as follows: the essence and spice of modulated hair are loaded on porous carbon material to obtain tobacco stem porous carbon supported solid flavoring material, and low melting point resin, CCA, Si O2 And auxiliary agent are mixed according to certain proportion to form solid flavoring, now by solid-solid flavoring process device is applied to the material to be flavored, again by cutting, winding and other processes form heating cigarette core.This technical solution realizes lossless flavoring, does not damage the packaging structure of solid flavoring material, breaks through solid flavoring technology, solves the problems such as overflow of solid flavoring component, structure disintegration caused by traditional flavoring mode, and the flavoring is uniform, can intelligently control flavoring site, flavoring pattern, application proportion and gradient order, breaks the problems such as uneven flavoring, difficult to accurately apply in traditional mode.

Description

Technical Field

[0001] This invention belongs to the field of tobacco flavoring technology, specifically relating to a solid-solid flavoring method for porous carbon from tobacco stems and its application in heated cigarettes. Background Technology

[0002] Tobacco flavoring is a process technology that applies tobacco flavorings and fragrances to tobacco and tobacco products to enhance the aroma and sensory quality of tobacco. Traditional tobacco flavoring methods mainly include: 1) dissolving the flavorings and fragrances in a solvent to form a homogeneous solution, then spraying it onto the surface of tobacco or tobacco products, and achieving the flavoring effect through the volatilization and diffusion of the flavorings and fragrances; 2) mixing tobacco or tobacco product slurry with flavorings and fragrances, then drying and shaping to achieve the flavoring purpose. Both methods use liquid flavoring to improve the penetration and adhesion of the flavorings and fragrances. The difference is that the former uses liquid-solid flavoring, while the latter uses liquid-liquid flavoring. However, each has its advantages and disadvantages. The advantage is that the process is simple, and methods 1) and 2) can be used for any soluble flavorings and fragrances. Method 2) can be used for solid, poorly soluble or insoluble flavorings and fragrances. However, the disadvantages are as follows: Method 1) Due to the spraying process, the spray nozzle output is distributed in an umbrella shape, with a high concentration of fragrance near the center or nozzle and a low concentration around the perimeter, resulting in uneven fragrance addition; Method 2) For soluble fragrances and flavorings and sparingly soluble / insoluble solid fragrances and flavorings, the slurry needs to be baked at high temperature for a long time after mixing to remove excess solvent, resulting in a large amount of fragrance substances being lost through volatilization, resulting in poor fragrance addition effect, and it is difficult to achieve full and uniform mixing of solid slurry, which will also cause uneven fragrance addition.

[0003] With the development and technological changes in the tobacco industry, tobacco flavoring is no longer limited to traditional liquid-solid and liquid-liquid flavoring methods. For pre-packaged solid flavoring materials (such as zeolite-loaded flavoring particles, plant-based flavoring powders, and porous carbon-loaded flavorings), traditional flavoring methods directly damage their internal structure, causing loss of flavor substances or uneven flavoring (for example, porous carbon-loaded flavorings are applied to the core material of heated cigarettes to compensate for insufficient aroma and uneven release). Therefore, the ideal flavoring method is direct solid-solid flavoring, that is, directly and evenly adhering the solid flavoring material to the surface of tobacco or tobacco products, avoiding the collapse of the material structure caused by solvent dissolution or the loss of flavor substances caused by baking and dehydration. Therefore, how to achieve this solid-solid flavoring method has become an urgent problem to be solved. Among these challenges, even application and effective adhesion are two key technical difficulties in solving this problem.

[0004] Therefore, for novel solid flavorings, how to achieve a method for applying solid flavorings based on the surface of solid tobacco leaves or reconstituted tobacco leaves, in order to solve the problems of flavor substance loss, uneven flavoring, and inability to apply solid flavorings with specific structures or functions in existing technologies, has become an important research topic in cigarette flavoring technology. To overcome the technical shortcomings of existing flavoring methods, there is an urgent need to develop a new solid-to-solid flavoring technology. Summary of the Invention

[0005] The purpose of this invention is to provide a solid-solid flavoring method for porous carbon from tobacco stems and its application technology in heated cigarettes, in order to solve the problem that existing liquid-solid and liquid-liquid flavoring methods cannot effectively and uniformly apply functional solid flavorings to the heated cigarette core without damaging the solid flavoring structure.

[0006] To achieve the above objectives, this application employs the following technical solution:

[0007] A solid-solid flavoring method for porous charcoal from tobacco stems, specifically employing the following steps:

[0008] S1. Preparation of solid flavoring material supported by porous carbon of tobacco stems: The tobacco stems are prepared into porous carbon material by high temperature carbonization or hydrothermal synthesis. Then, the prepared flavorings are loaded onto the porous carbon material by static adsorption, spraying or impregnation.

[0009] S2. Preparation of solid-solid flavoring formulation: The solid flavoring material with porous carbon supported by tobacco stems prepared in step S1 is mixed with low melting point resin, CCA, SiO2 and additives in a certain proportion to form a solid flavoring.

[0010] S3. Solid-to-Solid Fragrance Addition Process: ① The solid fragrance is placed in the fragrance box of the solid-to-solid fragrance addition process device, and the fragrance material to be added is placed on the conveying device; ② The fragrance addition device is started, and the graphic image recognition device scans and captures the outline and coordinates of the fragrance material to be added; ③ The software analyzes and forms a transfer image; ④ The image is output to the laser system and forms an electrostatic latent image on the photosensitive drum; ⑤ The photosensitive drum adsorbs the solid fragrance and transfers it to the surface of the fragrance material under the action of the electric field; ⑥ The fragrance material to be added is transferred to the fuser, the solid fragrance is cured, and it is rapidly cooled in the air-cooling system to output the solid-to-solid fragrance material;

[0011] S4. The above-mentioned solid-solid flavoring materials are processed into heated cigarette cores through cutting, rolling and other processes.

[0012] Preferably, the porous carbon from the tobacco stems is prepared by mechanically pulverizing dried tobacco stems after leaf threshing and re-drying to 300 mesh particles, preparing porous carbon particles under nitrogen-deficient oxygen conditions at 500-900℃ or high-temperature, high-pressure hydrothermal conditions, and then ball-milling to obtain a particle size of 1-5 micrometers and a specific surface area of ​​750-1300 m².2 / g of porous carbon from tobacco stems.

[0013] Preferably, the flavorings include, but are not limited to, tobacco extracts, tobacco essential oils, tobacco pastes, natural extracts, and volatile synthetic flavorings, with an application ratio of 5%-20% of the mass of the porous carbon from tobacco stems; specifically, the flavorings are formulated according to the aroma characteristics and functional positioning of the added fragrance, and then loaded onto the porous carbon through static adsorption, spraying, or impregnation.

[0014] Preferred, the solid-solid flavoring formula is as follows: the ratio of tobacco stem porous carbon-supported flavoring, low melting point resin, CCA, SiO2 and additives is (3-6 parts): (2-3 parts): (0.2-1 parts): (0.2-1 parts): 0.5 parts.

[0015] Preferably, the ratio of tobacco stem porous carbon-supported flavoring, low melting point resin, CCA, SiO2 and additives is 6:2:0.5:1:0.5 or 6:3:0.5:0.5:0.5.

[0016] Preferably, the low-melting-point resin includes, but is not limited to, monomers or copolymers such as low-molecular-weight polyol, polyacrylic acid, polyethylene glycol, and polyethylene. Depending on the heating temperature of the heated cigarette device, a multi-component low-melting-point resin is formed by compounding two or more components to change the curing temperature of the flavoring material and the critical temperature for the release of flavoring components.

[0017] Preferably, the multi-component low-melting-point resin is formulated to achieve a fixing and curing temperature of 60-95℃ and a hot melt critical release temperature of 200-450℃.

[0018] Preferably, the solid-solid fragrance addition process and the solid-solid fragrance addition process device include: a fragrance box, a conveying device, a laser system, a photosensitive image transfer device, a charge-discharge accessory system, a fuser, an air-cooling system, a graphic image recognition system, and a software control system, etc., and each component is controlled collaboratively by the software control system; specifically, the starting device is controlled by the software control system to control the graphic image recognition system to determine the information of the fragrance material to be added and to set the fragrance amount, fragrance pattern, fragrance order, etc., and then output to the laser system to form a transfer image, and the transfer image is then transferred to the surface of the fragrance material to be added by the photosensitive image transfer device, the charge-discharge accessory system, the fuser and the air-cooling system.

[0019] Preferably, the graphic image recognition system includes an image acquisition camera, graphic edge recognition and coordinate positioning processing, and an electrostatic latent image output by a collaborative laser system.

[0020] Preferably, the solid-solid fragrance addition device can be configured with multiple fragrance boxes with different fragrance characteristics, effects or release critical temperatures according to the required fragrance addition ratio, and applied layer by layer to the surface of the material to be fragranced in the solid-solid fragrance addition sequence to form a stepped release effect.

[0021] Preferably, the solid-solid flavoring method of the porous carbon from tobacco stems includes, but is not limited to, its application in heated cigarettes, and can also be applied to media that require solid flavoring, such as tobacco leaves, reconstituted tobacco leaves, cigarette paper, and tobacco auxiliary materials.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) Non-destructive fragrance addition, without damaging the packaging structure of solid fragrance materials, breaking through the solid fragrance addition technology, and effectively solving the problems of solid fragrance component overflow and structural disintegration caused by traditional fragrance addition methods.

[0024] (2) The fragrance is applied evenly and can be intelligently controlled to control the fragrance application points, patterns, application ratios and order, breaking the problems of uneven fragrance application and difficulty in precise application in traditional methods. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the solid-solid fragrance addition method of the present invention.

[0026] Figure 2 This is a schematic diagram of the solid-solid fragrance addition device of the present invention.

[0027] Figure 3 Cross-sectional view of solid-solid fragrance material.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Spice box; 2. Conveying device; 3. Laser system; 4. Photosensitive image transfer device; 5. Charging and discharging accessory system; 6. Fixer; 7. Air cooling system; 8. Graphic image recognition system; 9. Software control system. Detailed Implementation

[0030] To further illustrate the technical concept, technical solution, and technical advantages of the present invention, the following embodiments provide a more detailed explanation. It should be noted that the embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] This application describes a solid-to-solid fragrance addition process apparatus using existing, commercially available equipment. Therefore, this application does not provide a detailed description of the apparatus's structure. This technical solution merely utilizes the function of the existing apparatus, rather than modifying it. The apparatus includes: a fragrance box, a conveying device, a laser system, a photosensitive image transfer device, a charging / discharging accessory system, a fuser, an air-cooling system, a graphic image recognition system, and a software control system. All components are collaboratively controlled by the software control system. Specifically, upon starting the apparatus, the software control system controls the graphic image recognition system to determine the information of the fragrance material to be added and sets the fragrance amount, pattern, and order. The result is then output to the laser system to form a transferred image. This transferred image is then transferred to the surface of the fragrance material by the photosensitive image transfer device, the charging / discharging accessory system, the fuser, and the air-cooling system. The graphic image recognition system includes an image acquisition camera, graphic edge recognition and coordinate positioning processing, and an electrostatic latent image output by the laser system.

[0032] Example 1

[0033] This embodiment provides a solid-solid flavoring method for porous carbon from tobacco stems, specifically including the following steps:

[0034] S1. Preparation of porous carbon-supported solid aromatic material from tobacco stems: ① The dried tobacco stems after being threshed and re-dried are pulverized to approximately 300 mesh, and then placed in a high-temperature pyrolysis furnace for carbonization at 600℃ in a nitrogen atmosphere for 3-5 hours; ② The carbonized tobacco stems are further ball-milled to approximately 1-2 micrometers to obtain a porous carbon material with a specific surface area of ​​972.5 m². 2 / g; ③ The prepared flavoring (tobacco extract + eugenol) is loaded onto porous carbon by spraying and left to stand for 2-5 hours before use.

[0035] S2. Preparation of solid-solid flavoring formulation: The above-mentioned tobacco stem porous carbon-supported flavoring is thoroughly mixed with low melting point resin, CCA, SiO2 and additives in a mass ratio of 6:2:0.5:1:0.5 to form a solid flavoring.

[0036] S3, Solid-to-Solid Fragrance Addition Process: such as Figure 1 and Figure 2 As shown, ① the above solid fragrance is placed in the fragrance box (1) of the fragrance device, and the fragrance material to be added is placed on the conveying device (2); ② the fragrance device is started, and the graphic image recognition device (8) scans and captures the outline and coordinates of the fragrance material to be added; ③ the software analyzes and forms a transfer image; ④ the image is output to the laser system (3) and forms an electrostatic latent image on the photosensitive drum; ⑤ the photosensitive drum adsorbs the solid fragrance and transfers it to the surface of the fragrance material under the action of the electric field force; ⑥ the fragrance material to be added is transferred to the fuser (6), solidifies the solid fragrance particles, and is rapidly cooled in the air-cooling system (7), and the solid-solid fragrance material is formed after output.

[0037] S4. The above-mentioned solid-solid flavoring material is cut and rolled to form a heated cigarette core.

[0038] The low-melting-point resin is a two-component mixture of low-polyacrylol and polyacrylic acid. Low-polyacrylol is the curing agent, and the curing temperature is 60-95℃. Polyacrylic acid is a porous carbon channel protectant with a hot melt critical release temperature of 200-450℃, which is heated and melted in a heating fume.

[0039] This embodiment uses a single-fragrance flavoring process. A single-fragrance box is placed, and the flavoring method is to apply it evenly to the surface. The flavoring material is reconstituted tobacco leaves for heated cigarettes, with a thickness of 0.1-0.15 mm and a smooth surface.

[0040] The flavored reconstituted tobacco leaves were rolled into heated cigarette fillers and evaluated in Golden Leaf brand heated tobacco devices. The evaluation results are as follows:

[0041] Each sip features a prominent clove aroma, a rich tobacco roasted flavor, and a uniform and stable release.

[0042] Example 2

[0043] This embodiment provides a solid-solid flavoring method for porous carbon from tobacco stems, specifically including the following steps:

[0044] S1. Preparation of porous carbon-supported solid aromatic material from tobacco stems: ① The dried tobacco stems after being threshed and re-dried are pulverized to approximately 300 mesh, and then placed in a high-temperature pyrolysis furnace for carbonization at 700℃ in a nitrogen atmosphere for 3-5 hours; ② The carbonized tobacco stems are further ball-milled to approximately 1-2 micrometers to obtain a porous carbon material with a specific surface area of ​​1087.3 m². 2 / g; ③ Load the prepared flavoring (tobacco oil + ethyl maltol) onto porous carbon by impregnation, let it stand for 2-5 hours to air dry naturally before use;

[0045] S2. Preparation of solid-to-solid flavoring formulation: The above-mentioned tobacco stem porous carbon-supported flavoring is thoroughly mixed with low melting point resin, CCA, SiO2 and additives in a mass ratio of 6:2:0.5:1:0.5 to form a solid flavoring.

[0046] S3, Solid-to-Solid Fragrance Addition Process: such as Figure 1 and Figure 2As shown, ① the above solid fragrance is placed in the fragrance box (1) of the fragrance device, and the fragrance material to be added is placed on the conveying device (2); ② the fragrance device is started, and the graphic image recognition device (8) scans and captures the outline and coordinates of the fragrance material to be added; ③ the software analyzes and forms a transfer image; ④ the image is output to the laser system (3) and forms an electrostatic latent image on the photosensitive drum; ⑤ the photosensitive drum adsorbs the solid fragrance and transfers it to the surface of the fragrance material under the action of the electric field force; ⑥ the fragrance material to be added is transferred to the fuser (6), solidifies the solid fragrance particles, and is rapidly cooled in the air-cooling system (7), and the solid-solid fragrance material is formed after output.

[0047] S4. The above-mentioned solid-solid flavoring material is cut and rolled to form a heated cigarette core.

[0048] The low-melting-point resin is a two-component mixture of low-polyacrylol and polyacrylic acid. Low-polyacrylol is the curing agent, and the curing temperature is 60-95℃. Polyacrylic acid is a porous carbon channel protectant with a hot melt critical release temperature of 200-450℃, which is heated and melted in a heating fume.

[0049] This embodiment uses a single-fragrance flavoring process. A single-fragrance box is placed, and the flavoring method is to apply it evenly to the surface. The flavoring material is reconstituted tobacco leaves for heated cigarettes, with a thickness of 0.1-0.15 mm and a smooth surface.

[0050] The flavored reconstituted tobacco leaves were rolled into heated cigarette fillers and evaluated in Golden Leaf brand heated tobacco devices. The evaluation results are as follows:

[0051] It has a prominent milky sweet aroma, a rich tobacco roasted flavor, and a stable and even release.

[0052] Example 3

[0053] This embodiment provides a solid-solid flavoring method for porous carbon from tobacco stems, specifically including the following steps:

[0054] S1. Preparation of porous carbon-supported solid aromatic material from tobacco stems: ① The dried tobacco stems after leaf re-drying are pulverized to about 300 mesh, and then placed in a high-temperature pyrolysis furnace for carbonization at 650℃ in a nitrogen atmosphere for 3-5 hours; ② The carbonized tobacco stems are further ball-milled to about 1-2 micrometers to obtain a porous carbon material with a specific surface area of ​​1007.5 m². 2 / g; ③ The two flavorings (tobacco extract + eugenol and tobacco essential oil + trimethylpyrazine) were loaded onto porous carbon by spraying and left to stand for 2-5 hours before use.

[0055] S2. Preparation of solid-solid flavoring formulation: The above-mentioned tobacco stem porous carbon-supported flavoring is thoroughly mixed with low melting point resin, CCA, SiO2 and additives in a mass ratio of 6:3:0.5:0.5:0.5 to form two solid flavorings.

[0056] S3, Solid-to-Solid Fragrance Addition Process: such as Figure 1 and Figure 2 As shown, ① the two solid fragrances mentioned above are placed in the fragrance box (1) of the fragrance device, and the fragrance material to be added is placed on the conveying device (2); ② the fragrance device is started, and the graphic image recognition device (8) scans and captures the outline and coordinates of the fragrance material to be added; ③ the software analyzes and forms a transfer image; ④ the image is output to the laser system (3) and forms an electrostatic latent image on the photosensitive drum; ⑤ the photosensitive drum adsorbs the solid fragrance and transfers it to the surface of the fragrance material under the action of the electric field; ⑥ the fragrance material to be added is transferred to the fuser (6), solidifies the solid fragrance particles, and is rapidly cooled in the air-cooling system (7), and then output to form the solid-solid fragrance material.

[0057] The software control system sets up two fragrance addition modes and a tiered order. Specifically, the software sets the fragrance addition order and concentration, with the two alternating and at a medium concentration.

[0058] S4. The above-mentioned solid-solid flavoring material is processed into heated cigarette cores through cutting, rolling and other processes.

[0059] The low-melting-point resin is a two-component mixture of low-polyacrylol and polyacrylic acid. Low-polyacrylol is the curing agent, and the curing temperature is 60-95℃. Polyacrylic acid is a porous carbon channel protectant with a hot melt critical release temperature of 200-450℃, which is heated and melted in a heating fume.

[0060] This embodiment uses a single-fragrance flavoring process, placing a double-fragrance box, and applying the fragrance evenly to the surface. The material to be flavored is reconstituted tobacco leaves for heated cigarettes, with a thickness of 0.1-0.15 mm and a smooth surface.

[0061] The flavored reconstituted tobacco leaves were rolled into heated cigarette fillers and evaluated in Golden Leaf brand heated tobacco devices. The evaluation results are as follows:

[0062] It has a spicy-sweet taste, prominent nutty aroma, rich and sweet tobacco flavor, and a stable and even release.

[0063] The above embodiments illustrate in detail the principles, features, and effects of the present invention. The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent variations, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A solid-solid flavoring method of tobacco stem porous carbon, characterized in that, Specifically, the following steps are adopted: S1, preparation of solid flavoring material loaded on porous carbon of tobacco stem, high-temperature carbonization method or hydrothermal synthesis method is used to prepare porous carbon material from tobacco stem, and then the prepared flavoring essence is loaded on the porous carbon material by static adsorption, spraying or soaking; S2, preparation of solid-solid flavoring formula, the solid flavoring material prepared in step S1 is mixed with low-melting-point resin, CCA, SiO2 and additives in a certain proportion to form a solid flavoring; S3, solid-solid flavoring process, ① the solid flavoring is placed in the flavoring box of the flavoring device, and the flavoring material is placed on the conveying device; ② start the flavoring device, the pattern image recognition device scans and captures the outline and coordinates of the flavoring material; ③ software analysis and formation of the transfer image; ④ the image is output to the laser system, and the electrostatic latent image is formed on the photosensitive selenium drum; ⑤ the photosensitive selenium drum adsorbs the solid flavoring and transfers it to the surface of the flavoring material under the action of electric field force; ⑥ the flavoring material is transported to the fixing device, the solid flavoring is solidified, and the solid flavoring material is quickly cooled in the air cooling system and output; S4, the solid-solid flavoring material is formed into a heated cigarette core through cutting and rolling processes; The solid-solid flavoring formula is that the proportion of the solid flavoring material loaded on porous carbon of tobacco stem, low-melting-point resin, CCA, SiO2 and additives is (3-6 parts):(2-3 parts):(0.2-1 part):(0.2-1 part):0.5 part; The multi-component low-melting-point resin realizes fixing and solidification temperature of 60-95°C and hot-melt critical release temperature of 200-450°C through formula matching; The solid-solid flavoring process, the flavoring device includes a flavoring box, a conveying device, a laser system, a photosensitive transfer device, a charging and discharging accessory system, a fixing device, an air cooling system, a pattern image recognition system and a software control system, and each component is cooperatively controlled by the software control system; specifically, the flavoring device is started, the software control system controls the pattern image recognition system to determine the flavoring material information and set the flavoring amount, flavoring pattern, flavoring sequence, and then outputs to the laser system to form a transfer image, and the transfer image is transferred to the surface of the flavoring material by the photosensitive transfer device, the charging and discharging accessory system, the fixing device and the air cooling system.

2. The solid-solid flavoring method of tobacco stem porous carbon according to claim 1, characterized in that, The tobacco stem porous carbon has a particle size of 1-5 microns and a specific surface area of 750-1300 m 2 / g of tobacco stem porous carbon.

3. The solid-solid flavoring method of tobacco stem porous carbon according to claim 1, characterized in that, The flavoring essence includes but is not limited to tobacco extract, tobacco essential oil, tobacco extract, natural extract and volatile synthetic flavoring, and the application ratio is 5%-20% of the mass of the porous carbon of tobacco stem.

4. The solid-solid flavoring method of tobacco stem porous carbon according to claim 1, characterized in that, The proportion of the solid flavoring material loaded on porous carbon of tobacco stem, low-melting-point resin, CCA, SiO2 and additives is 6:2:0.5:1:0.5 or 6:3:0.5:0.5:0.

5.

5. The solid-solid flavoring method of tobacco stem porous carbon according to claim 1, characterized in that, The low-melting-point resin includes monomer or copolymer in low-molecular polypropylene alcohol, polyacrylic acid, polyethylene glycol and polyethylene, and is composed of multi-component low-melting-point resin by two-component or multi-component matching.

6. The solid-solid flavoring method of tobacco stem porous carbon according to claim 1, characterized in that, The pattern image recognition system includes an image acquisition camera, pattern edge recognition, coordinate positioning processing and cooperatively outputting an electrostatic latent image with the laser system.

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