High-toughness thick-slurry-process reconstituted tobacco special for heating cigarettes and preparation method of thick-slurry-process reconstituted tobacco

Abstract

The invention provides a thick-slurry-method reconstituted tobacco special for heating cigarettes. The thick-slurry-method reconstituted tobacco comprises the following raw materials in parts by weight: 100 parts of tobacco raw materials; 2 to 20 parts of fiber; 5 to 40 parts of a polyol hydrophilic atomizing agent; 2-10 parts of a main cross-linking agent; 1-10 parts of an auxiliary cross-linking agent; 1-10 parts of an inorganic filler; 1-10 parts of flavors and fragrances; and 250 to 400 parts of water. The main cross-linking agent is subjected to formula optimization and the auxiliary cross-linking agent is subjected to gelatinization treatment, so that the compatibility and dispersity of fibers in a reconstituted tobacco system can be effectively improved, and the overall elongation at break of the reconstituted tobacco is synergistically improved; by adding the inorganic filler, the structure of the reconstituted tobacco is looser, the overall softness is improved, and the stable release characteristic of flavor substances is considered. By adopting the method provided by the invention, the prepared reconstituted tobacco special for heating the cigarettes can effectively improve the toughness and the softness of the thick-slurry-method tobacco sheets, is suitable for being applied to heating the cigarettes in ordered arrangement, and meets the experience requirements of smokers.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco, and in particular to a thick pulp-processed reconstituted tobacco leaf specially used for high-toughness heated cigarettes and a preparation method thereof. Background Art

[0002] Reconstituted tobacco leaves specially used for heated cigarettes, namely tobacco flakes, are made by mixing and homogenizing tobacco raw material powder of specific particle size, atomizers, fibers, adhesives, additives, flavors, etc. as raw and auxiliary materials, and are made through post-processing processes such as molding and drying, shredding / rewinding, etc. They are mostly used for orderly or disorderly arranged smoking segments of heated cigarettes, providing heated cigarette products with smoke similar to that of traditional cigarette products, satisfying consumers' sensory needs and tasting experience.

[0003] At present, the main processing technologies for reconstituted tobacco leaves for heated cigarettes at home and abroad include papermaking, rolling, dry and thick slurry methods. After the reconstituted tobacco leaves for heated cigarettes are formed, they can be rolled using a reel or cut into tobacco shreds of a certain size using shredding equipment according to process requirements. However, whether the tobacco slices are rolled or shredded, the tobacco slices have the problem of low toughness, which causes the slices to break during the shredding process, resulting in a decrease in the whole shred rate of the slices and an increase in the shredded shreds and ash content; the slices are prone to brittle fracture during the rolling process, severe breakage and low effective curling rate.

[0004] Therefore, it is particularly important to improve the toughness of the slices to meet the processing requirements of heated cigarettes and develop a high-toughness reconstituted tobacco leaf specifically for heated cigarettes. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a thick slurry method reconstituted tobacco leaf specially used for heating cigarettes, a preparation method thereof and cigarettes. The reconstituted tobacco leaf provided by the present invention has good elongation at break, softness and sensory properties.

[0006] The present invention provides a thick slurry method reconstituted tobacco leaf specially used for heating cigarettes, comprising the following raw materials in parts by weight:

[0007] 100 parts of tobacco raw materials; 2-20 parts of fibers; 5-40 parts of polyol hydrophilic atomizers; 2-10 parts of primary cross-linking agents; 1-10 parts of auxiliary cross-linking agents; 1-10 parts of inorganic fillers; 1-10 parts of flavors and fragrances; and 250-400 parts of water.

[0008] In some specific embodiments, the polyol hydrophilic atomizer is propylene glycol and / or glycerol.

[0009] In some specific embodiments, the main cross-linking agent comprises any one or more of pectin, gelatin, sodium carboxymethyl cellulose, sodium alginate, guar gum, locust bean gum, taro gum, fenugreek gum, sesbania gum, xanthan gum, carrageenan, konjac gum, gellan gum, gum arabic, tamarind polysaccharide gum or welan gum;

[0010] The ingredients of the auxiliary cross-linking agent include any one or more combinations of sodium carboxymethyl starch, distarch phosphate, starch acetate, acetylated distarch phosphate, hydroxypropyl distarch phosphate, hydroxypropyl starch, cationic starch, oxidized starch, acid-treated starch, acetylated distarch adipate, sodium starch octenylsuccinate, dextrin, maltodextrin or resistant dextrin.

[0011] In some specific embodiments, the fiber is one or more of softwood pulp, hardwood pulp, fluff pulp, microcrystalline cellulose, and powdered cellulose;

[0012] The inorganic filler includes any one or more of calcium carbonate, calcium lactate, calcium sulfate or borax.

[0013] In some specific embodiments, the mass ratio of the main cross-linking agent to the auxiliary cross-linking agent is (1-9):1.

[0014] The present invention provides a method for producing thick pulp reconstituted tobacco leaves for heating cigarettes according to any one of the above technical solutions, comprising the following steps:

[0015] A) crushing the tobacco raw material to obtain the crushed tobacco raw material;

[0016] B) emulsifying the primary cross-linking agent and the atomizing agent to obtain a mixed emulsion;

[0017] gelatinizing the auxiliary cross-linking agent and water to obtain an auxiliary cross-linking agent sol;

[0018] C) mixing the tobacco raw material, the mixed emulsion, the auxiliary crosslinking agent sol, the fiber, the inorganic filler and water to obtain a slurry;

[0019] D) Spread the slurry on a metal support by tape casting and form it after drying and setting.

[0020] In some specific embodiments, the mesh size of the crushing in step A) is 80 to 400 mesh;

[0021] The emulsification temperature is 40-60°C and the emulsification time is 0.5-2h.

[0022] In some specific embodiments, the gelatinization treatment in step B) is performed at a temperature of 60 to 90° C. and for a time of 0.5 to 2 hours.

[0023] In some specific implementations, the surface temperature of the metal support in step D) is 90-120° C.; the parameters of the casting and spreading molding include a casting box slit width of 0.1-1 mm and a casting box slurry spreading speed of 1-5 cm / s.

[0024] Step D) The drying is hot air drying; the temperature of the hot air drying is 90-120°C.

[0025] The present invention provides a cigarette, comprising the reconstituted tobacco described in any one of the above technical solutions or the reconstituted tobacco prepared by the preparation method described in any one of the above technical solutions.

[0026] Compared with the prior art, the present invention provides a thick slurry method reconstituted tobacco leaf for heating cigarettes, including the following raw materials by weight: 100 parts of tobacco raw materials; 2-20 parts of fiber; 5-40 parts of polyol hydrophilic atomizer; 2-10 parts of main cross-linking agent; 1-10 parts of auxiliary cross-linking agent; 1-10 parts of inorganic filler; 1-10 parts of flavor and fragrance; 250-400 parts of water. The present invention can effectively improve the compatibility and dispersibility of fibers in the reconstituted tobacco leaf system by optimizing the formula of the main cross-linking agent and gelatinizing the auxiliary cross-linking agent, and synergistically improve the overall elongation at break of the reconstituted tobacco leaf; by adding inorganic fillers, the structure of the reconstituted tobacco leaf is made looser, the overall softness is improved, and the stable release characteristics of the flavor substances are taken into account. The method provided by the patent of the present invention can be used to prepare reconstituted tobacco leaves for heating cigarettes, which can effectively improve the toughness and softness of thick slurry method tobacco sheets, and is suitable for orderly arrangement of heating cigarettes to meet the experience needs of smokers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A preparation process for high-toughness thick slurry method heated cigarette reconstituted tobacco. DETAILED DESCRIPTION

[0028] The present invention provides a thick pulp method for heating cigarettes, a preparation method thereof, and cigarettes. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve the desired effect. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art, and they all fall within the scope of protection of the present invention. The methods and applications of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications of this article without departing from the content, spirit, and scope of the present invention to realize and apply the technology of the present invention.

[0029] It should be understood that the expression "one or more of..." includes each of the items recited after the expression individually and in various different combinations of two or more of the recited items, unless otherwise understood from the context and usage. The expression "and / or" in combination with three or more recited items should be understood to have the same meaning, unless otherwise understood from the context.

[0030] The use of the terms "comprising", "having" or "containing", including their grammatical synonyms, should generally be understood as open and non-restrictive, for example not excluding other unrecited elements or steps, unless otherwise specifically stated or otherwise understood from the context.

[0031] In this application, the term "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0032] The present invention provides a thick slurry method reconstituted tobacco leaf specially used for heating cigarettes, comprising the following raw materials in parts by weight:

[0033] 100 parts of tobacco raw materials; 2-20 parts of fibers; 5-40 parts of polyol hydrophilic atomizers; 2-10 parts of primary cross-linking agents; 1-10 parts of auxiliary cross-linking agents; 1-10 parts of inorganic fillers; 1-10 parts of flavors and fragrances; and 250-400 parts of water.

[0034] In some embodiments of the present invention, the reconstituted tobacco leaves prepared by the thick slurry method for heating cigarettes include the following raw materials in parts by weight:

[0035] 100 parts of tobacco raw materials; 3-8 parts of fibers; 15-35 parts of polyol hydrophilic atomizers; 2-5 parts of primary cross-linking agents; 1-5 parts of auxiliary cross-linking agents; 3-7 parts of inorganic fillers; 4-6 parts of flavors and fragrances; and 280-320 parts of water.

[0036] In some embodiments of the present invention, the reconstituted tobacco leaves prepared by the thick slurry method for heating cigarettes include the following raw materials in parts by weight:

[0037] 100 parts of tobacco raw materials; 5 parts of fibers; 30 parts of polyol hydrophilic atomizers; 2 parts of primary cross-linking agents; 1 part of auxiliary cross-linking agents; 5 parts of inorganic fillers; 5 parts of flavors and fragrances; and 300 parts of water.

[0038] The tobacco raw materials of the present invention include conventional tobacco raw materials or factory materials such as tobacco stems, fragments, stem sticks, tobacco dust, and tobacco flakes, without any special restrictions.

[0039] The mesh number of the tobacco raw material pulverized in the present invention is 80-400 mesh; specifically, it can be 80 mesh, 100 mesh, 150 mesh, 200 mesh, 250 mesh, 300 mesh, 350 mesh or 400 mesh; or a range value between any two of the above.

[0040] In some specific embodiments, the polyol hydrophilic atomizer is propylene glycol and / or glycerol; preferably propylene glycol and glycerol.

[0041] In some specific embodiments, the main cross-linking agent comprises any one or more of pectin, gelatin, sodium carboxymethyl cellulose, sodium alginate, guar gum, locust bean gum, taro gum, fenugreek gum, sesbania gum, xanthan gum, carrageenan, konjac gum, gellan gum, gum arabic, tamarind polysaccharide gum or welan gum;

[0042] In a preferred embodiment of the present invention, the main cross-linking agent comprises guar gum and sodium alginate.

[0043] The auxiliary cross-linking agent comprises any one or more combinations of sodium carboxymethyl starch, distarch phosphate, starch acetate, acetylated distarch phosphate, hydroxypropyl distarch phosphate, hydroxypropyl starch, cationic starch, oxidized starch, acid-treated starch, acetylated distarch adipate, sodium octenyl succinate starch, dextrin, maltodextrin or resistant dextrin. In a preferred embodiment of the present invention, the auxiliary cross-linking agent comprises acetylated distarch phosphate.

[0044] In some specific embodiments, the fiber is one or more of softwood pulp, hardwood pulp, fluff pulp, microcrystalline cellulose, and powdered cellulose;

[0045] In some specific embodiments, the fibers are softwood pulp and hardwood pulp;

[0046] In some specific embodiments, the mass ratio of the coniferous wood pulp to the hardwood wood pulp is (3-9):1;

[0047] In some specific embodiments, the mass ratio of coniferous wood pulp to hardwood pulp is 3:1, 4:1, 5:1, 6:1, 7:1, 8:1 or 9:1; or a range value between any two of the above.

[0048] The inorganic filler includes any one or more of calcium carbonate, calcium lactate, calcium sulfate or borax; preferably, the inorganic filler is borax.

[0049] In some specific embodiments, the mass ratio of the main cross-linking agent to the auxiliary cross-linking agent is (1-9):1;

[0050] In some specific embodiments, the mass ratio of the primary crosslinking agent to the auxiliary crosslinking agent is 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1 or 9:1; or a range between any two of the above.

[0051] The present invention provides a method for producing thick pulp reconstituted tobacco leaves for heating cigarettes according to any one of the above technical solutions, comprising the following steps:

[0052] A) crushing the tobacco raw material to obtain the crushed tobacco raw material;

[0053] B) emulsifying the primary cross-linking agent and the atomizing agent to obtain a mixed emulsion;

[0054] gelatinizing the auxiliary cross-linking agent to obtain an auxiliary cross-linking agent sol;

[0055] C) mixing the tobacco raw material, the mixed emulsion, the auxiliary crosslinking agent sol, the fiber, the inorganic filler and water to obtain a slurry;

[0056] D) Spread the slurry on a metal support by tape casting and form it after drying and setting.

[0057] The present invention does not limit the above specific components and ratios, which are well known to those skilled in the art.

[0058] The method for producing thick slurry reconstituted tobacco leaves for heated cigarettes provided by the present invention firstly grinds tobacco raw materials; the mesh number of the grinds is 80-400 mesh; specifically, it can be 80 mesh, 100 mesh, 120 mesh, 140 mesh, 160 mesh, 180 mesh, 200 mesh, 250 mesh, 300 mesh, 350 mesh or 400 mesh; or a ratio between any two of the above.

[0059] The main cross-linking agent and the atomizing agent are emulsified to obtain a mixed emulsion. The emulsification temperature is 40°C to 60°C, specifically 40°C, 50°C or 60°C, and the time is 0.5 to 2 hours, specifically 0.5 hours, 1 hour or 2 hours, or a ratio between any two of the above.

[0060] The auxiliary cross-linking agent is gelatinized to obtain an auxiliary cross-linking agent sol.

[0061] In some specific embodiments, the gelatinization temperature is 60-90°C and the time is 0.5-2h. The gelatinization temperature can be 60°C, 70°C, 75°C, 80°C or 90°C, or a range between any two of the above.

[0062] The tobacco raw material, mixed emulsion, auxiliary crosslinking agent sol, fiber, inorganic filler and water are mixed and homogenized to obtain a slurry. The present invention does not limit the specific manner of the above mixing, and any mixing method known to those skilled in the art can be used. After fully mixing and homogenizing at room temperature, a uniform and stable slurry is obtained.

[0063] The slurry is spread on the metal support by casting.

[0064] In some specific embodiments, the surface temperature of the metal support is 90-120°C; can be 90°C, 95°C, 100°C, 105°C, 110°C, 115°C or 120°C; or a range between any two of the above.

[0065] The parameters of the casting and spreading molding include a casting box slit width of 0.1-1 mm and a casting box slurry spreading speed of 1-5 cm / s; specifically, it can be 1 cm / s, 2 cm / s, 3 cm / s, 4 cm / s or 5 cm / s.

[0066] The film is formed by spreading and drying, and the film is obtained after being dried and fixed; the drying is hot air drying; the hot air drying temperature is 90-120°C; it can be 90°C, 95°C, 100°C, 105°C, 110°C, 115°C or 120°C; or a range value between any two of the above.

[0067] The present invention provides a cigarette, comprising the reconstituted tobacco described in any one of the above technical solutions or the reconstituted tobacco prepared by the preparation method described in any one of the above technical solutions.

[0068] The present invention prepares cigarettes from the above-mentioned reconstituted tobacco leaves, and the cigarettes can include smokable products, such as cigarettes, cigars and cigarillos. As another example, the smoking products can include combustion-type smoking products and heated smoking products.

[0069] Based on the thick slurry process, the present invention optimizes the auxiliary material formula and process conditions to prepare reconstituted tobacco leaves for heat-not-burn cigarettes. The present invention can effectively improve the compatibility and dispersibility of fibers in the reconstituted tobacco leaf system by optimizing the formula of the main cross-linking agent and gelatinizing the auxiliary cross-linking agent, and synergistically improve the overall elongation at break of the reconstituted tobacco leaves; by adding inorganic fillers, the structure of the reconstituted tobacco leaves is made looser, the overall softness is improved, and the stable release of flavor substances is maintained. The method provided by the patent of the present invention can be used to prepare reconstituted tobacco leaves for heat-not-burn cigarettes, which can effectively improve the toughness and softness of thick slurry tobacco sheets, and is suitable for use in orderly arranged heat-not-burn cigarettes to meet the experience needs of smokers.

[0070] It should be understood that the order of steps or the order in which certain actions are performed is not important as long as the present invention remains operable. In addition, two or more steps or actions may be performed simultaneously.

[0071] The use of any and all examples or exemplary language, such as "for example" or "including", herein is intended only to better illustrate the invention and does not limit the scope of the invention unless otherwise claimed. No language in this specification should be construed as indicating that any non-claimed element is essential to the practice of the invention.

[0072] In addition, the numerical ranges and parameters used to define the present invention are approximate values, and the relevant values ​​in the specific embodiments have been presented as accurately as possible. However, any numerical value inherently inevitably contains standard deviations due to individual test methods. Therefore, unless otherwise expressly stated, it should be understood that all ranges, quantities, values ​​and percentages used in this disclosure are modified by "about". Here, "about" generally means that the actual value is within plus or minus 10%, 5%, 1% or 0.5% of a specific value or range.

[0073] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0074] Some cases are recorded in the embodiments and comparative examples of the present invention, wherein the embodiments show certain implementation modes of the present invention. However, this does not mean that the effects of the present invention can only be achieved in these cases.

[0075] In order to further illustrate the present invention, a thick pulp method reconstituted tobacco leaf specially used for heating cigarettes, a preparation method thereof and a cigarette provided by the present invention are described in detail below in conjunction with embodiments.

[0076] Example 1-5 ingredient list:

[0077]

[0078]

[0079] In the table: Example 1 is a raw material formula for high-toughness flakes; Comparative Example 1 is a gelatinized sol control sample without adding an auxiliary crosslinking agent; Comparative Example 2 is a mixed emulsion control sample without adding a main crosslinking agent and an atomizer; Comparative Example 3 is a control sample without adding an inorganic filler; Comparative Example 4 is a pure coniferous wood pulp fiber control sample preparation process:

[0080] Firstly, the tobacco raw material is crushed to obtain crushed tobacco raw material;

[0081] Emulsifying the main cross-linking agent and the atomizing agent at 50° C. according to the above ratio to obtain a main cross-linking agent / atomizing agent mixed emulsion;

[0082] The auxiliary cross-linking agent is gelatinized (the gelatinization temperature is 75° C.) to form an auxiliary cross-linking agent sol;

[0083] The tobacco raw material, the main cross-linking agent / atomizer mixed emulsion, the auxiliary cross-linking agent sol, the fiber, the inorganic filler and water are fully mixed and homogenized at room temperature according to the proportions in the above table to obtain a uniform and stable slurry;

[0084] The slurry is spread on the metal support by casting, and the surface temperature of the metal support is 105℃;

[0085] After hot air drying (hot air temperature is 105°C) and shaping treatment, high-toughness thick pulp method reconstituted tobacco leaves specially used for heated cigarettes are obtained.

[0086] The physical properties of the reconstituted tobacco obtained in Example 16 were tested, and the results were as follows:

[0087] Table 2 Comparison table of physical properties of reconstituted tobacco leaves

[0088]

[0089] The sensory evaluation results of the reconstituted tobacco leaves prepared in Examples 1-6 are as follows:

[0090] Table 3 Comparison table of sensory evaluation of reconstituted tobacco leaves

[0091]

[0092]

[0093] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A thick pulp method reconstituted tobacco leaf specially used for heating cigarettes, characterized in that: The invention comprises the following raw materials in parts by weight: 100 parts of tobacco raw materials; 2-20 parts of fibers; 5-40 parts of polyol hydrophilic atomizers; 2-10 parts of primary cross-linking agents; 1-10 parts of auxiliary cross-linking agents; 1-10 parts of inorganic fillers; 1-10 parts of flavors and fragrances; and 250-400 parts of water.

2. The reconstituted tobacco according to claim 1, characterized in that: The polyol hydrophilic atomizer is propylene glycol and / or glycerol.

3. The reconstituted tobacco according to claim 1, characterized in that: The main cross-linking agent comprises any one or more of pectin, gelatin, sodium carboxymethyl cellulose, sodium alginate, guar gum, locust bean gum, taro gum, fenugreek gum, sesbania gum, xanthan gum, carrageenan, konjac gum, gellan gum, gum arabic, tamarind polysaccharide gum or welan gum; The ingredients of the auxiliary cross-linking agent include any one or more combinations of sodium carboxymethyl starch, distarch phosphate, starch acetate, acetylated distarch phosphate, hydroxypropyl distarch phosphate, hydroxypropyl starch, cationic starch, oxidized starch, acid-treated starch, acetylated distarch adipate, sodium starch octenylsuccinate, dextrin, maltodextrin or resistant dextrin.

4. The reconstituted tobacco leaf according to claim 1, characterized in that: The fiber is one or more of softwood pulp, hardwood pulp, fluff pulp, microcrystalline cellulose, and powdered cellulose; The inorganic filler includes any one or more of calcium carbonate, calcium lactate, calcium sulfate or borax.

5. The reconstituted tobacco according to claim 1, characterized in that: The mass ratio of the main cross-linking agent to the auxiliary cross-linking agent is (1-9):

1.

6. A method for producing thick slurry reconstituted tobacco leaves for heating cigarettes according to any one of claims 1 to 5, characterized in that: The steps include: A) crushing the tobacco raw material to obtain the crushed tobacco raw material; B) emulsifying the primary cross-linking agent and the atomizing agent to obtain a mixed emulsion; gelatinizing the auxiliary cross-linking agent and water to obtain an auxiliary cross-linking agent sol; C) mixing the tobacco raw material, the mixed emulsion, the auxiliary crosslinking agent sol, the fiber, the inorganic filler and water to obtain a slurry; D) Spread the slurry on a metal support by tape casting and form it after drying and setting.

7. The production method according to claim 6, characterized in that: The mesh size of the crushing in step A) is 80 to 400 mesh; The emulsification temperature is 40-60°C and the emulsification time is 0.5-2h.

8. The production method according to claim 6, characterized in that: Step B) The gelatinization treatment is carried out at a temperature of 60 to 90° C. and for a time of 0.5 to 2 hours.

9. The production method according to claim 6, characterized in that: Step D) the surface temperature of the metal carrier is 90-120° C. The parameters of the casting and spreading molding include a casting box slit width of 0.1-1 mm and a casting box slurry spreading speed of 1-5 cm / s; Step D) The drying is hot air drying; the temperature of the hot air drying is 90-120°C.

10. A cigarette, characterized in that: The invention comprises the reconstituted tobacco leaf according to any one of claims 1 to 5 or the reconstituted tobacco leaf prepared by the preparation method according to any one of claims 6 to 9.

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