CN114009822B - Preparation process for heating cigarette material by composite method - Google Patents
Preparation process for heating cigarette material by composite method Download PDFInfo
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- CN114009822B CN114009822B CN202111527985.XA CN202111527985A CN114009822B CN 114009822 B CN114009822 B CN 114009822B CN 202111527985 A CN202111527985 A CN 202111527985A CN 114009822 B CN114009822 B CN 114009822B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
Abstract
The invention provides a preparation process for heating cigarette materials by a composite method, which comprises the following steps: respectively preparing a coating liquid and a characteristic fragrance module; coating a coating liquid on the fiber sheet-making base by using the fiber sheet-making base as a carrier through first dip-coating treatment to feed the fiber sheet-making base, and then carrying out first drying treatment; and coating the characteristic fragrance module on the fiber paper-making base by the second dip-coating treatment to fragrance the fiber paper-making base, and then performing second drying treatment, rolling and slitting. The invention takes the fiber sheet base as the carrier, and prepares the heating cigarette material by twice dip-coating treatment and twice drying treatment, the preparation process is simpler, and less dip-coating and less drying can ensure that the prepared cigarette material has better tensile strength, so that the cigarette material has excellent post processing performance, remarkable characteristic fragrance and good persistence.
Description
Technical Field
The invention belongs to the technical field of preparation of cigarette core materials, and particularly relates to a preparation process for heating cigarette materials by a composite method.
Background
The heated cigarette as one of the main product categories of the novel tobacco products has the characteristics of low-temperature heating and non-combustion, nicotine supply to meet the physiological requirements of consumers, 90% lower harmful ingredients in smoke compared with the traditional cigarette, and the like. The cigarette core material used as the key component of the heating cigarette has the characteristics of stronger plasticity, homogenization and high adjustable level. Heating cigarette core components requires fibers as support, carrying smoke, characteristic flavors, and other components that provide satisfaction. Therefore, the heating cigarette material has the characteristics of multiple preparation processes and good controllability.
At present, the domestic and foreign heating cigarette material production processes mainly comprise four methods, namely a paper-making method (CN 201675508.1), a dry method (CN 108936782A), a thick pulp method (CN 111602840A) and a rolling method (CN 112089086A), wherein the paper-making method is low in coating rate, the mass of an effective load dry substance is small, the smoke quantity and the fragrance quantity are slightly low, and a smoke agent is mainly coated on the surface of reconstituted tobacco leaves and is easy to leach and absorb moisture; the thickness control difficulty is higher during dry film base forming, the uniformity, the thickness and the quantitative stability of the coating liquid load are influenced, the processing strength is not high, and the phenomena of powder falling, crushing and breaking are easy to occur during shredding or gathering forming; the forming slurry of the thick slurry method has higher moisture, and the higher moisture needs to be removed during drying, so that the loss of aroma components and smoke agents is easily caused, and the two sides of the reconstituted tobacco leaves of the thick slurry method have obvious color difference; the rolling method has low filling value, large suction resistance after being rolled into cigarettes, low tensile strength and easy crushing and breaking during shredding or gathering forming.
In order to overcome the defect of preparing cigarette materials by a single production process, the research on preparing cigarettes with excellent performance by a composite process is a new direction of the existing cigarette enterprises, for example, chinese patent CN201910923203.0 discloses a reconstituted tobacco for heating cigarettes and an improved dry preparation method thereof, a dry film base for coating is prepared by using a dry airflow forming technology, coating liquid is prepared, and multiple multi-stage coating is carried out by using a spray coating slit type extrusion coating combined coating technology formed by combining the spray coating technology with a slit type extrusion coating technology to obtain a reconstituted tobacco semi-finished product; the reconstituted tobacco semi-finished product is subjected to multi-stage drying by a drying system, calendaring finishing by a soft calendaring system and drying and shaping after calendaring to form a reconstituted tobacco finished product; the improved dry reconstituted tobacco prepared by the invention has moderate bulk, tightness, air permeability and porosity, the physical properties of the improved dry reconstituted tobacco are greatly modified and improved, and the suction durability and the suction resistance are obviously enhanced. According to the preparation method, the spraying process is adopted to feed the film base, the concentration of the coating liquid cannot be too high in order to ensure the spraying uniformity, multiple spraying and drying treatments are required in order to obtain an ideal film base loading capacity, on one hand, the preparation process is complex, the cigarette preparation cost is increased, on the other hand, the loss of cigarette flavor in multiple drying processes is large, the flavor waste problem is serious, and the improvement of the cigarette sensory quality and the improvement of the tensile strength of cigarette materials are not facilitated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation process for heating cigarette materials by a composite method.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a preparation process for heating cigarette materials by a composite method, which comprises the following steps:
respectively preparing coating liquid and a characteristic incense module;
taking a fiber papermaking substrate as a carrier, coating the coating liquid on the fiber papermaking substrate through first dip-coating treatment to feed the fiber papermaking substrate, and then carrying out first drying treatment;
and coating the characteristic fragrance module on the fiber paper-making base by the second dip-coating treatment to fragrance the fiber paper-making base, and then performing second drying treatment, rolling and slitting.
The invention takes a fiber papermaking base as a carrier, and selects a base with the width of 300 to 600mm and the quantitative ratio of 25 to 45g/m 2 And the fiber paper-making base with the tensile strength of 0.4 to 0.8kN/m is subjected to twice dip-coating treatment and twice drying treatment to prepare the heating cigarette material, the preparation process is simple, and the prepared cigarette material has better tensile strength by less dip-coating and less drying. Because the invention adopts the dip-coating feeding process, the viscosity of the coating liquid can be relatively higher, namely the solid content of the coating liquid is higher, thus the fiber sheet-making substrate can obtain higher loading capacity by one-time dip-coating. Preferably, the coating liquid of the present invention contains the tobacco extract and the smoke agent, and the solid content of the coating liquid is 55 to 80%, such as 55%, 60%, 65%, 70%, 75%, or 80%. The tobacco extract is one or more of water-extracted leaf extract, stem extract, alcohol-extracted leaf extract and stem extract. The tobacco extract is water extract or alcohol extract of one or more of broken tobacco pieces, broken tobacco powder and broken tobacco stems with different parts, different grades and different types. The smoke agent can be mixture of propylene glycol and glycerol.
The characteristic fragrance module used in the invention contains a tobacco fragrance, preferably, the tobacco fragrance comprises a general fragrance and a special fragrance, the general fragrance is one or more of loquat, fig, momordica grosvenori, jujube extract, maple extract and tree moss extract, and the special fragrance is one or more of blueberry, mint, grape, honey peach and honey melon. The special spice has high identification degree, can be used as a heating cigarette for identifying a certain characteristic taste, and improves the smoking sensory experience of smokers.
Further, in order to improve the water resistance and reduce the water absorption of the prepared heated cigarette material, the coating liquid also contains a water repellent agent. The hydrophobic agent can be at least one of glyceryl triacetate and caprylic/capric glyceride. Glyceryl triacetate and glyceryl caprylate/caprate have hydrophobic property, and propylene glycol or glycerin as a smoke agent has hydrophilic property, so that the heated cigarette material has high requirement on moisture content, and the viscosity of the fiber paper-making base loaded with high smoke quantity is increased after water absorption, which is not beneficial to processing. By adding a certain amount of glyceryl triacetate or glyceryl caprylate-caprate into the coating liquid, the moisture absorption and regain of the fiber paper-making base can be effectively prevented.
In order to improve the coating uniformity of the coating liquid and the characteristic incense modules on the fiber papermaking substrate, save the feed liquid and reduce the cost of waste materials, the preparation processes of the coating liquid and the characteristic incense modules adopt pneumatic material homogenizing and circulating reflux processes. The pneumatic refining adopts compressed air for blowing, pneumatic bubbles pass through the material liquid layer to stir the material liquid, bubble groups rise in a dense state, the convection circulation of the material liquid is promoted by the air-lift effect, and the air pressure range is 0.1 to 0.8Mpa. Further, in the preparation process of the heated cigarette material, the coating liquid is in a heating and stirring state, and the heating temperature is 55 to 70 ℃; the characteristic incense module is in a normal-temperature stirring state. Specifically, the coating liquid is heated and stirred in a closed storage tank with a water bath heating function, the characteristic incense module is stirred at normal temperature, the stirring speed of the process is 20 to 50r/min, but the stirring speed can be dynamically adjusted according to the consistency of the material liquid. And the coating liquid or the characteristic incense modules in the feeding storage tank are returned to the closed storage tank by utilizing the circulating device.
On the basis of ensuring full drying, in order to reduce the loss of volatile substances in the coating liquid and the characteristic incense modules in the drying process, the invention adopts different drying treatment processes after dip-coating of the coating liquid and the characteristic incense modules. The invention adopts a six-section continuous closed heating and air exhausting drying process, sets different temperature gradients to carry out step-by-step drying according to different properties of coating liquid and characteristic fragrance module liquid, and specifically, the first drying treatment comprises first three-section continuous drying and first one-section ironing and flattening; the second drying treatment comprises a second three-section continuous drying and a second one-section ironing and flattening. The drying temperature for the first three-section (first, second and third) continuous drying is 80 to 110 ℃, and the drying temperature for the second three-section (fourth, fifth and sixth) continuous drying is 50 to 65 ℃. The temperature for ironing and flattening the first section is 80-110 ℃, and the temperature for ironing and flattening the second section is 50-65 ℃. Each section can be subjected to temperature regulation and control, and a certain stage of temperature section and exhaust equipment can be independently used. The first stage ironing and flattening and the second stage ironing and flattening utilize a smooth metal roller with a built-in heating function to iron and flatten the heated cigarette material, so that the flatness of the base can be kept, and the later rolling, slitting and processing are facilitated.
In addition, because the tobacco extract in the coating liquid has higher temperature tolerance generally, and the tobacco flavor in the characteristic flavor module has weaker temperature tolerance, the loss of the flavor due to heating can be reduced, the flavor cost is saved, the production safety is improved, and the product quality is ensured by adopting the modes of graded dip coating and respective drying; on the other hand, the prepared heating cigarette material can contain various spice components with different tolerance temperatures, and a series of different spice component substances can be released according to the continuous change of the heating temperature in the heating process of the heating cigarette material, so that the cigarette fragrance of the cigarette is enriched, the persistence of the cigarette fragrance is improved, and the smoking sensory quality is improved.
Compared with the prior art, the invention has the beneficial effects that:
the preparation process of the heating cigarette material by the composite method takes the fiber paper-making base as the carrier, and the heating cigarette material is prepared by twice dip-coating treatment and twice drying treatment, the preparation process is simple, and the prepared cigarette material can be ensured to have better tensile strength by less dip-coating and less drying, so that the cigarette material has excellent later-stage processing performance, remarkable characteristic aroma and good persistence; the invention adopts a two-section dip coating process to add fragrance to the base material of the fiber sheet-making base, can improve the coating amount and reduce the loss of fragrance substances in the characteristic fragrance module. In addition, the coating liquid and the characteristic fragrance module are respectively and independently prepared, so that the uniformity of solid and liquid phases can be greatly improved, and the coating liquid has the advantages of high material liquid homogenization degree, high coating efficiency, low energy consumption and the like in the production process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
Fig. 1 is a process flow chart of a preparation process of a cigarette material heated by a composite method according to embodiment 1 of the present invention.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It is to be understood that the processing equipment or apparatus not specifically identified in the following examples is conventional in the art.
Furthermore, it is to be understood that one or more method steps recited in the present disclosure are not exclusive of other method steps that may also be present before or after the recited combination of steps or that other method steps may also be inserted between the explicitly recited steps, unless otherwise indicated; moreover, unless otherwise indicated, the numbering of the method steps is only a convenient tool for identifying each method step, and is not intended to limit the order of the method steps or the scope of the invention, and changes or modifications in the relative relationship thereof may be regarded as the scope of the invention without substantial change in the technical content.
Example 1
Selecting the material with the width of 300mm and the quantitative of 25g/m 2 And a fiber sheet base having a tensile strength of 0.4kN/m as a carrier.
Respectively preparing the coating liquid and the characteristic incense module, measuring the viscosity of the coating liquid, setting the stirring temperature to be 60 +/-2 ℃ and the stirring speed to be 50 +/-2 r/min, and heating and stirring a section of coating liquid in a closed storage tank with a water bath heating function.
Setting the second-stage stirring speed to be 30 +/-2 r/min, and stirring the second-stage characteristic incense module at normal temperature.
The pressure of the convection compressed air is set to be 0.2Mpa, and the circulating reflux speed is set to be 5L/min.
The temperature ranges of the first, second and third sections are respectively 95 ℃, 95 ℃ and 95 ℃, and the temperature ranges of the fourth, fifth and sixth sections are respectively 55 ℃, 55 ℃ and 55 ℃.
The first stage ironing temperature is set to 95 ℃, and the second stage ironing temperature is set to 50 ℃.
The fiber sheet making base is first dip coated with material and then second dip coated with perfume. The heated cigarette material S1 is obtained. The preparation process flow is shown in figure 1.
Example 2
Selecting the material with the width of 400mm and the quantitative of 30g/m 2 And a fiber sheet base having a tensile strength of 0.5kN/m as a carrier.
Respectively preparing the coating liquid and the characteristic fragrance module, measuring the viscosity of the coating liquid, setting the stirring temperature to be 65 +/-2 ℃ and the stirring speed to be 55 +/-2 r/min, and heating and stirring a section of coating liquid in a closed storage tank with a water bath heating function.
Setting the second-stage stirring speed to be 32 +/-2 r/min, and stirring the second-stage characteristic incense module at normal temperature.
The pressure of the convection compressed air is set to be 0.15Mpa, and the circulating reflux speed is set to be 6L/min.
The temperature ranges of the first, second and third sections are respectively 100 ℃, 100 ℃ and 100 ℃, and the temperature ranges of the fourth, fifth and sixth sections are respectively 60 ℃, 60 ℃ and 60 ℃.
Setting the first stage ironing temperature to be 100 ℃ and the second stage ironing temperature to be 55 ℃.
The fiber sheet making base is first dip coated with material and then second dip coated with perfume. The heated cigarette material S2 is prepared.
Example 3
Selecting the material with the width of 500mm and the quantitative of 35g/m 2 And a fiber sheet base having a tensile strength of 0.5kN/m as a carrier.
Respectively preparing the coating liquid and the characteristic incense module, measuring the viscosity of the coating liquid, setting the stirring temperature to be 65 +/-2 ℃ and the stirring speed to be 55 +/-2 r/min, and heating and stirring a section of coating liquid in a closed storage tank with a water bath heating function.
Setting the second-stage stirring speed to be 32 +/-2 r/min, and stirring the second-stage characteristic incense module at normal temperature.
The pressure of the convection compressed air is set to be 0.15Mpa, and the circulating reflux speed is set to be 6L/min.
The temperature ranges of the first, second and third sections are respectively 100 ℃, 105 ℃ and 100 ℃, and the temperature ranges of the fourth, fifth and sixth sections are respectively 65 ℃, 65 ℃ and 65 ℃.
Setting the first stage ironing temperature to be 95 ℃ and the second stage ironing temperature to be 55 ℃.
The fiber sheet making base is first dip coated with material and then second dip coated with perfume. To obtain the heated cigarette material S3.
Example 4
Selecting the material with the width of 600mm and the quantitative of 40g/m 2 And a fiber sheet base having a tensile strength of 0.6kN/m as a carrier.
Respectively preparing the coating liquid and the characteristic incense module, measuring the viscosity of the coating liquid, setting the stirring temperature to be 65 +/-2 ℃ and the stirring speed to be 55 +/-2 r/min, and heating and stirring a section of coating liquid in a closed storage tank with a water bath heating function.
Setting the second-stage stirring speed to be 32 +/-2 r/min, and stirring the second-stage characteristic incense module at normal temperature.
The pressure of the convection compressed air is set to be 0.25Mpa, and the circulating reflux speed is set to be 7L/min.
The temperature ranges of the first, second and third sections are 105 ℃, 105 ℃ and 100 ℃ respectively, and the temperature ranges of the fourth, fifth and sixth sections are 65 ℃, 70 ℃ and 65 ℃ respectively.
Setting the first stage ironing temperature to be 95 ℃ and the second stage ironing temperature to be 55 ℃.
The first-stage dip coating and feeding and the second-stage dip coating and perfuming are carried out on the fiber paper-making sheet base. The heated cigarette material S4 is prepared.
Example 5
Selecting the material with the width of 600mm and the quantitative of 45g/m 2 And a fiber sheet base having a tensile strength of 0.6kN/m as a carrier.
Respectively preparing the coating liquid and the characteristic incense module, measuring the viscosity of the coating liquid, setting the stirring temperature to be 65 +/-2 ℃ and the stirring speed to be 55 +/-2 r/min, and heating and stirring a section of coating liquid in a closed storage tank with a water bath heating function.
Setting the second-stage stirring speed to be 32 +/-2 r/min, and stirring the second-stage characteristic incense module at normal temperature.
The pressure of convection compressed air is set to be 0.25Mpa, and the circulating reflux speed is set to be 7L/min.
The temperature ranges of the first, second and third sections are 105 ℃, 105 ℃ and 105 ℃, respectively, and the temperature ranges of the fourth, fifth and sixth sections are 65 ℃, 70 ℃ and 65 ℃, respectively.
Setting the first stage ironing temperature to be 95 ℃ and the second stage ironing temperature to be 55 ℃.
The first-stage dip coating and feeding and the second-stage dip coating and perfuming are carried out on the fiber paper-making sheet base. The heated cigarette material S5 is obtained.
The heating cigarette materials prepared in examples 1 to 5 of the present invention were evaluated for the grammage, coating weight, thickness, tensile strength, color difference, moisture and other parameters, and the above samples were evaluated at 20 ℃ and 40% humidity, and the evaluation results are shown in the following table.
As seen from the table above, the coating weight of the heated cigarette material prepared by the method can reach more than 2 times of that of the original film base, the film base thickness can be increased by 20 to 30 percent, the water content can be well controlled, the tensile strength is increased along with the increase of the gram weight of the film base, and the subsequent processing strength is improved. After measurement and comparison by a color difference meter, no obvious color difference exists.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (6)
1. A preparation process for heating cigarette materials by a composite method is characterized by comprising the following steps:
respectively preparing coating liquid and a characteristic incense module; the coating liquid comprises a tobacco extract and a smoke agent; the characteristic fragrance module comprises a tobacco fragrance; the tobacco flavor comprises a general flavor and a special flavor, the general flavor is one or more of loquat, fig, momordica grosvenori, jujube extract, maple extract and tree moss extract, and the special flavor is one or more of blueberry, mint, grape, honey peach and Hami melon;
taking a fiber papermaking substrate as a carrier, coating the coating liquid on the fiber papermaking substrate through first dip-coating treatment to feed the fiber papermaking substrate, and then carrying out first drying treatment; the first drying treatment comprises a first three-section continuous drying and a first one-section ironing and flattening, wherein the drying temperature of the first three-section continuous drying is 95-110 ℃, and the ironing and flattening temperature of the first section is 95-110 ℃;
coating the characteristic fragrance module on a fiber paper-making base by the second dip-coating treatment to fragrance the fiber paper-making base, and then performing second drying treatment, rolling and slitting; the second drying treatment comprises third-section continuous drying for the second time and first-section ironing for the second time, wherein the drying temperature of the third-section continuous drying for the second time is 50-65 ℃, and the ironing temperature of the second-section continuous drying for the second time is 50-65 ℃.
2. The process for preparing a material for heating cigarettes by a composite method according to claim 1, wherein the processes of preparing the coating liquid and preparing the characteristic incense module both adopt pneumatic material blending and circulating reflux processes.
3. The preparation process of the composite heating cigarette material according to claim 2, wherein the air pressure range of the pneumatic refining is 0.1 to 0.8Mpa.
4. The process for preparing a material for cigarettes by composite heating according to claim 1, wherein the coating liquid contains a tobacco extract and a smoking agent, and the solid content of the coating liquid is 55 to 80%.
5. The process for preparing a material for heating cigarettes by a composite method according to claim 4, wherein the coating liquid further contains a hydrophobizing agent.
6. The process for preparing a material for heating cigarettes by a composite method according to claim 5, wherein the hydrophobizing agent is at least one of glyceryl triacetate and glyceryl caprylate-caprate.
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| CN101103839A (en) * | 2006-07-13 | 2008-01-16 | 河南省轻工业科学研究所 | Paper-making method producing recombination tobacco leaf method |
| CN107874316A (en) * | 2017-11-03 | 2018-04-06 | 云南中烟再造烟叶有限责任公司 | A kind of high spreading rate papermaking-method reconstituted tobaccos coating method |
| CN109875097A (en) * | 2019-03-14 | 2019-06-14 | 广东中烟工业有限责任公司 | It is a kind of to heat the preparation method that do not burn with dry process reproduction tobacco leaf |
| CN110537722B (en) * | 2019-09-27 | 2021-10-15 | 四川中烟工业有限责任公司 | Reconstituted tobacco suitable for heating non-burning cigarettes and improved dry preparation method thereof |
| CN211323029U (en) * | 2019-11-11 | 2020-08-25 | 云南中烟工业有限责任公司 | Shaping drying system of special thick liquid method reconstituted tobacco of cigarette is not burnt in heating |
| CN110731531B (en) * | 2019-11-22 | 2022-04-05 | 云南中烟再造烟叶有限责任公司 | Preparation method and application of high-flexibility reconstituted tobacco |
| CN110833201B (en) * | 2019-11-28 | 2021-09-07 | 四川三联新材料有限公司 | Dry-process reconstituted tobacco with adjustable air permeability and tightness as well as preparation method and application thereof |
| CN111358036B (en) * | 2020-01-06 | 2022-07-19 | 福建中烟工业有限责任公司 | Sheet for tobacco products containing lyocell fiber and heat-non-combustible tobacco products |
| CN112056609B (en) * | 2020-09-10 | 2022-09-20 | 河南中烟工业有限责任公司 | Production method of heating cigarette paper-making method sheet |
| CN112089086B (en) * | 2020-09-27 | 2022-05-20 | 河南卷烟工业烟草薄片有限公司 | Preparation process of reconstituted tobacco for heating cigarettes |
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