WO2011127680A1

WO2011127680A1 - Sheet for cigarette, preparation method thereof, and cigarette

Info

Publication number: WO2011127680A1
Application number: PCT/CN2010/073574
Authority: WO
Inventors: 赵保军; 方维远; 李森盛; 谢旭东; 林芬芬; 吴晓东
Original assignee: 厦门中海钓台生物工程有限公司
Priority date: 2010-04-15
Filing date: 2010-06-04
Publication date: 2011-10-20
Also published as: CN102217782A

Abstract

A sheet for a cigarette, a preparation method thereof, and a cigarette are disclosed. The sheet for cigarette is made from tea leaf or tea stalk. The preparation method thereof includes the following steps: soaking the tea leaf or the tea stalk in water of 60-80℃ or a room temperature to obtain a swollen tea leaf or tea stalk; twisting the swollen tea leaf or tea stalk to obtain a coarse fiber of the tea leaf or tea stalk; washing the coarse fiber of the tea leaf or tea stalk in water of 60-80℃ or a room temperature to obtain a fiber of the tea leaf or tea stalk; grinding the fiber of the tea leaf of tea stalk into a pulp of the tea leaf or tea stalk; mixing the pulp of the tea leaf or tea stalk and a pulp of a reinforced fiber to make a final pulp; manufacturing a sheet base with the final pulp；drying for the first time, coating, drying for the second time the sheet base to obtain the sheet for cigarette. The sheet for cigarette can solve the problem of limited and unstable harm reduction effect in the prior art, thus achieving harm reduction.

Description

Tobacco sheet, preparation method thereof and cigarette

Technical field

The invention relates to the technical field of cigarette processing, in particular to a sheet for tobacco, a preparation method thereof and a cigarette. Background technique

In recent years, the global anti-smoking campaign has been growing, and the social pressure on the tobacco industry is increasing. In order to reduce the harm of tobacco products to human health, the world tobacco industry has also increased its research on harm reduction technology in the process of cigarette processing. At present, the most extensive harm reduction technology is the development of additives with harm reduction (known in the field as "harming additives,") and applied to filters and cigarette cut tobacco.

Studies have shown that: Tea contains more than 300 kinds of chemicals, including caffeine, tea and its derivatives, as well as vitamin E, vitamin C, etc., the use of tea in the production of cigarettes, the use of tea polyphenols and other substances can be used Achieve the purpose of harm reduction. Therefore, the prior art often extracts these active ingredients in tea leaves or other Chinese herbal medicines as a harm reducing additive. For example: the tea extract and other Chinese herbal extracts prepared by solvent reflux extraction are often concentrated under pressure or reduced pressure to form an extract, and an appropriate amount of honey is added to become a cigarette additive, and the obtained additive is dissolved in a certain amount of distilled water, ethanol or After the propylene glycol or a mixed solution thereof, it is sprayed on the cigarette tobacco or stem to make a cigarette; for example: the green tea is made into a tea filter and docked with the cigarette to selectively reduce free radicals in the smoke, Harmful substances such as nitramine are inhaled to reduce the harm of smoking to the human body.

However, when the above-mentioned additive for the harm reduction is added to the cut tobacco, if the additive used is a liquid additive, the amount of addition must be large enough to achieve the harm reduction effect, but since the tobacco is difficult to absorb a large amount of the agent, the amount of the additive is limited, thereby The effect of the harm reduction is affected; if the additive used is a solid additive, the solid additive is easily detached from the tobacco, and the addition amount of the additive cannot be ensured, so that the harm reduction effect cannot be ensured. For the tea filter, because the tea is too fragrant, it is difficult to coordinate with the tobacco flavor, and as the suction process progresses, the tar in the mainstream smoke will cover the filter on the filter, and the active position on the filter. The point is covered to reduce the damage effect of the filter; in addition, the tea filter can only reduce the harmful components in the mainstream smoke, but has no effect on the sidestream smoke whose harmful components are much higher than the mainstream smoke. Summary of the invention

The invention provides a flake sheet which is prepared by using tea leaves or tea stems as a main raw material, can be directly added to shredded tobacco, and can even be directly used for processing cigarettes, so that the harm-reducing components in the tea can be used for smoking. The thin sheet is added to the cigarette as a carrier and can be effectively utilized, which solves the problem that the harm reduction effect of the harm reduction additive in the prior art is limited and unstable, and is beneficial to the protection of the smoker.

The present invention still further provides a cigarette to which the above-mentioned tobacco sheet is added, which is advantageous for reducing the injury to a smoker.

The present invention also provides a method of preparing the above-mentioned tobacco sheet.

The present invention provides a sheet for tobacco using a tea leaf or a tea stem as a raw material by the following method, and the preparation method comprises the following steps:

The tea or tea stem is placed in water at 60-80 ° C for 20-30 minutes to obtain tea leaves or tea stem swelling, or the tea or tea stem is placed in normal temperature water for time. Soaking for 0.5-6 hours to obtain tea or tea stem swelling;

The tea or the tea stem swell is subjected to silk reeling to obtain crude fiber of tea leaves or tea stalks;

The obtained tea or tea stem crude fiber is placed in water at 60-80 ° C for a washing process of 20-30 minutes to obtain tea leaves or tea stem fibers, or the tea or tea stem crude fiber is placed at room temperature. Washing in water for 30-60 minutes to obtain tea or tea stem fibers;

The tea or tea stem fiber is refining to prepare a tea or tea stem slurry;

The tea or tea stalk slurry is mixed with the reinforced pulp slurry obtained by the refining treatment to prepare a slurry, so that the content of the reinforced fiber slurry in the slurry is 0-40 wt%;

The slurry is formed into a sheet base, and the sheet base is first dried, coated, and the present invention further provides a cigarette, the combustible portion of the cigarette comprising at least the tobacco sheet processed by the above The smoke is made of thin wire. Preferably, in the cigarette provided by the present invention, the tobacco flake silk has a content of 3 to 100% of the mass of the flammable portion of the cigarette, and the rest is shredded tobacco.

The tobacco sheet provided by the present invention can be directly applied to cigarettes. Specifically, if necessary, the flakes and the flakes may be shredded separately, and then mixed in a certain ratio, or the flakes and the flakes may be mixed in a certain ratio and then shred together, and then the mixed yarn is rolled. Become a cigarette branch. Of course, the cigarette provided by the present invention can also be processed only by using the above-mentioned tobacco sheet (the content of the tobacco sheet is 100%). That is, to become a more fashionable safe and healthy cigarette. When the cigarette of the present invention is used, the good burning property of the tobacco sheet can improve the burning speed of the cigarette, and reduce the release amount of harmful substances such as carbon monoxide generated during the combustion of the cigarette, thereby reducing the harm; The harm reduction effect can be achieved by using a harm reducing substance contained in the sheet itself, such as tea polyphenol. In addition, the method for preparing the tobacco sheet provided by the present invention uses tea leaves or tea stems as raw materials, and can also reduce the consumption of tobacco raw materials. In this film, the tobacco sheet is used in cigarettes, which reduces the amount of tobacco used in the cigarette, and can achieve the purpose of harm reduction. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some specific embodiments of the present invention, and those skilled in the art can also propose different modifications to them without any creative work.

1 is a flow chart of a method for preparing a sheet for tobacco according to a first embodiment of the present invention;

2 is a flow chart of a method for preparing a sheet for tobacco provided in Embodiment 2 of the present invention;

3 is a flow chart of a method for preparing a cigarette according to a fourth embodiment of the present invention. detailed description

The technical solutions of the present invention will be clearly and completely described in conjunction with the specific embodiments and corresponding drawings of the present invention, but the following embodiments are not to be construed as The scope of the invention can be implemented, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The preparation method of the tobacco sheet provided by the invention is similar to the papermaking process in the papermaking industry, and therefore can be implemented by referring to or using related equipment in the papermaking process, but those skilled in the art should understand that various kinds in the papermaking process The roles and locations of the devices in the technical solution of the present invention can be adaptively changed according to different processing flows and processing conditions.

Embodiment 1 1 is a flow chart of a method for preparing a sheet for tobacco according to a first embodiment of the present invention. In this embodiment, the tobacco sheet is prepared by using tea leaves or tea stems as raw materials. As shown in FIG. 1 , the method of the embodiment includes:

Step 11: The tea or tea stem is placed in hot water at 60-80 ° C for 20-30 minutes to obtain tea or tea stem swelling, or the tea or tea stem is placed in normal temperature water ( In the present invention, also referred to as room temperature water), the soaking treatment is carried out for 0.5-6 hours to obtain tea leaves or tea stem swelling; specifically, the selected tea leaves or tea stems can be placed at 60-80 ° C. Soak for 20-30 minutes in the hot water soaking tank, or soak the selected tea or tea stems in a soaking pool filled with room temperature water for 0.5-6 hours to swell the fibers in the tea leaves or tea stems. The tea or tea stems selected may be tea leaves or tea stems of oolong tea, green tea, black tea or green tea, or tea leaves or tea stems of other teas, which is not limited in this embodiment.

It should be noted that the liquid used for soaking tea leaves or tea stalks in this embodiment is hot water or room temperature water, and the solvent extraction and separation technology in the preparation process of the existing papermaking tobacco sheets is bound to introduce new chemistry. The reagent causes the obtained tobacco sheet to contain chemical residues, and the application to the cigarette affects the smoking taste of the cigarette, and also affects the harm reduction effect of the tobacco sheet. Therefore, in order to ensure that the prepared tobacco sheet is used in cigarettes The resulting harm reduction effect, in this embodiment, uses hot water or room temperature water as the soaking solvent. Of course, the solution of the present invention can also select water soaking materials higher than room temperature, but not higher than 80 ° C, and determine the appropriate soaking time according to the water temperature.

Step 12, the tea or the tea stem swelling material is twisted to obtain the crude fiber of the tea or the tea stem; after the tea or the tea stem is soaked, the fiber therein has been swollen, and then the already swollen tea leaf can be conveyed by the conveying device. Or the tea stems are sent to the reeling machine for silk processing to facilitate subsequent operations.

Step 13, the tea or tea stem crude fiber is placed in hot water at 60-80 ° C for 20-30 minutes to obtain tea or tea stem fiber, or the tea or tea stem crude fiber is placed at room temperature Washing in water for 30-60 minutes to obtain tea or tea stem fibers;

Specifically, the tea or tea stem crude fiber can be sent to a washing pot containing hot water of 60-80 ° C for 20-30 minutes to obtain tea or tea stem fiber, or tea or tea stem The crude fiber is sent to a washing tank containing normal temperature water for 30-60 minutes to obtain tea leaves or tea stem fibers, the purpose of which is to remove the miscellaneous cells and partially water-soluble substances in the crude fiber of tea leaves or tea stems, for example Nitrogen-containing compounds for the purpose of purifying the crude fiber of tea leaves or tea stems. In the above step 13, 60-80 ° C hot water or normal temperature water is used as the washing solvent, instead of using chemical reagents, in order to avoid the introduction of chemical reagents in the tobacco tea flakes, and avoid the use of tea leaf for tobacco production. The harm reduction effect does not require the separation and removal of the solvent, and the operation process is completed. Of course, the solution of the present invention can also select water above room temperature, but not higher than 80 ° C as a washing solvent, and determine an appropriate washing time according to the water temperature.

Step 14: refining the tea or the tea stem fiber to prepare a tea or tea stem slurry; specifically, the tea or tea stem fiber can be sent to a refiner by a pump for refining treatment to prepare tea or tea. Stalk slurry.

Step 15: mixing the tea or tea stem slurry with the reinforcing fiber slurry obtained by the refining treatment to prepare a slurry. This step is used to prepare a reinforced fiber slurry for the purpose of enhancing the strength of the prepared tobacco sheet. The addition of the reinforcing fibers is selective, depending on the strength of the finished sheet product. In the slurry formation, the reinforcing fiber is added in an amount of 0 to 40% by weight, and the addition amount is preferably 20 to 40% by weight.

Specifically, the process of preparing the reinforcing fiber slurry and the process of preparing the tea or tea stem slurry are two separate processes. The embodiment provides a process for preparing a reinforced fiber slurry: a fiberboard of a selected material (for example, a wood fiberboard) is sent to a pulper for pulping, and then the coarse fiber after the pulping is sent to a refiner. The refining is carried out to obtain a reinforced fiber slurry which can be used in the present invention. The preparation of the reinforced fiber slurry can be carried out by a pulping method in a papermaking process, and a fiberboard which can be used for cigarettes from a safe and sucking mouthfeel can be selected as a raw material, and thus this embodiment will not be described in detail.

The process of preparing the pulp comprises: firstly, the tea or tea stem slurry and the reinforcing fiber slurry can be fed into the batching tank through the conveying pipeline to be thoroughly mixed; then, the mixed tea or tea stem slurry and strengthening The fiber slurry is sent to the flushing tank, and the filler (such as light calcium carbonate) is added and diluted with water to a preset concentration. The preset concentration refers to the solid content of the slurry, which can be set according to specific needs; The slurry pump sends the diluted tea or tea stalk slurry and the reinforced fiber slurry to the high-level box, where a retention aid (such as guar gum) is added and uniformly mixed to obtain a slurry, which is a subsequent process. Prepare the pulp for papermaking. Among them, the high-position box can play the role of stabilizing the slurry pressure; the role of the retention aid is to increase the retention rate of the mixed slurry on the Internet, enhance the water filtration, to facilitate the papermaking, and to reduce the fine fibers and fillers in the white water. To reduce the burden of wastewater treatment. The retention aid should be present The retention agent conforming to the tobacco industry standard is well known in the art, and the specific selection of the invention is not limited, and the addition amount thereof is a conventional addition amount of the retention aid.

In step 16, the slurry is formed into a sheet base, and the sheet base is subjected to a first drying, coating and second drying treatment to obtain a sheet for tobacco to be applied to the cigarette.

This step is for copying the slurry into a sheet base, and drying the sheet base, for example, to obtain a sheet base having a water content of 15 to 30%. Coating the coating liquid on the dried sheet base

(The selection and use of the coating liquid are handled in accordance with the conventional techniques of the cigarette manufacturing industry), and then drying is performed again to obtain a sheet for smoking. For example, the sheet base may be subjected to coating drying treatment to obtain a sheet of tobacco having a water content of 10 to 13% and having a thickness of 0.3 to 0.4 mm.

Wherein, the drying treatment comprises directly drying the sheet base formed by the copying to remove most of the moisture in the sheet base, and then feeding the dried sheet base into the coating tank, The prepared coating liquid is coated on the sheet base in the cloth groove, and then the sheet base coated with the coating liquid is dried again to obtain a tobacco sheet conforming to the standard, for example, the water content is divided into 10~ 13% of tobacco sheets.

The preparation method of the tobacco sheet provided in the embodiment is prepared by using tea leaves or tea stems as raw materials, and the prepared tobacco sheets can be directly applied to cigarettes. Specifically, the flakes and the flakes are respectively shredded, and then mixed in a certain ratio, or the flakes and the flakes are mixed in a certain ratio and then cut together, and then the mixed yarn is rolled into a cigarette. Since the tea component is contained, the burning property of the tobacco sheet can improve the burning speed of the cigarette, and reduce the release amount of harmful substances such as CO generated during the combustion of the cigarette, thereby reducing the damage. Further, the technical solution of the present invention reduces the burning rate of the cigarette and reduces the content of harmful substances in the generated flue gas, not only the content of harmful substances in the mainstream smoke, and the content of harmful substances in the sidestream flue gas. The burning speed of the cigarette is reduced, so that the tobacco sheet prepared according to the technical scheme of the present invention is applied to the cigarette and simultaneously reduces the harmful effects of the mainstream smoke and the sidestream smoke.

In addition, the preparation method provided by the invention uses tea leaves or tea stems as raw materials to prepare flake flakes, which can alleviate the pressure on the tobacco industry to consume tobacco raw materials. In order to improve the burning speed of cigarettes, it is also possible to use the harm-reducing substances contained in tea or tea stems to further improve the harm reduction effect. For example, tea polyphenols in tea can reduce harm. use. Compared with the prior art, the method for using the tobacco sheet of the invention to achieve the harm reduction effect in the cigarette does not need to add the additive in the tobacco or the filter, thereby solving the reduction of the tar covering filter in the mainstream smoke. The problem of additive activity also solves the problem that spraying solid additives on the cut tobacco is easy to fall off, or the dose of the spray liquid additive is limited.

Embodiment 2

2 is a flowchart of a method for preparing a sheet for a cigarette according to a second embodiment of the present invention. This embodiment can be implemented based on the first embodiment. The difference between the embodiment and the embodiment is as shown in FIG. 2, which is shown in FIG. Preparation methods include:

Step 21: The tea or tea stem is placed in hot water at 60-80 ° C for 20-30 minutes to obtain tea or tea stem swelling, or the tea or tea stem is placed in normal temperature water. Soaking treatment for 0.5-6 hours to obtain tea or tea stem swelling;

In this embodiment, the amount of hot water or room temperature water in the immersion treatment is preferably 10-15 times the weight of the tea or tea stem, so as to more fully soak the tea or tea stem without wasting water resources. .

Step 22, separating the tea or tea stem swelling material from the soaked hot water or normal temperature water, and returning the separated hot water or normal temperature water to the soaking treatment process for recycling;

In the preparation method of the present embodiment, when separating tea leaves or tea stems, the separated hot water or room temperature water is sent back to the soaking pool for recycling, thereby achieving the purpose of saving water resources. Of course, in order to ensure the purity of the hot water or normal temperature water used in the immersion tank, the separated hot water or normal temperature water should not be recycled indefinitely, preferably 2-3 times, that is, when hot water or room temperature water is After recycling for 2-3 times, it can be discharged after treatment.

Step 23, the tea or tea stem swelling material is twisted to obtain the tea or tea stem crude fiber; Step 24, the tea or tea stem crude fiber is placed in hot water at 60-80 ° C for 20-30 Minute washing treatment to obtain tea leaves or tea stem fibers, or placing tea or tea stem crude fibers in normal temperature water for a washing time of 30-60 minutes to obtain tea leaves or tea stem fibers;

In the present embodiment, the amount of hot water or room temperature water in the washing treatment is preferably 10-15 times the weight of the tea or tea stem crude fiber, so as to more fully tea or tea without wasting water resources. The stalk fiber is subjected to a washing treatment to remove the miscellaneous cells and a part of the water-soluble substance contained therein, such as a nitrogen-containing compound, for the purpose of purifying the tea leaf or the tea stem fiber. Step 25, separating the tea or tea stem fiber from the washed hot water or the normal temperature water, and returning the separated hot water or normal temperature water to the soaking treatment process for recycling;

Specifically, this step is the same as the implementation and effect of step 22, and this step will not be discussed in detail. Step 26, the tea or tea stem fiber is subjected to a first refining process to obtain a crude pulp;

Specifically, the tea or tea stem crude fiber can be sent to a high-concentration mill for refining by a pump, that is, the first refining treatment to obtain a coarse pulp.

Step 27, the second slurry is subjected to a second refining treatment to obtain a fine pulp, and the fine pulp is a tea or tea stem slurry;

Specifically, the coarse slurry is sent to a double-disc mill for further refining, that is, the second refining treatment to obtain a fine pulp, and the fine pulp is a tea or tea stem slurry.

Step 28, refining the reinforced fiberboard to prepare a reinforced fiber slurry;

This step is used to prepare a reinforced fiber slurry for the purpose of enhancing the strength of the prepared tobacco sheet. The addition of the reinforcing fibers is selective, depending on the strength requirements of the finished sheet. Due to the short fiber and high content of miscellaneous cells of tea or tea stems, the strength of the finished product is poor during the papermaking process. Therefore, depending on the type of tea selected, it is necessary to add an appropriate amount of reinforcing fibers to the tea or tea stalk slurry to increase the strength of the sheet. In this embodiment, by adding a reinforced fiber slurry, the use of the reinforced fiber contributes to the preparation of a sheet for tobacco having a strength that meets the requirements of the cigarette processing technology. The addition amount of the reinforcing fiber slurry is generally controlled to 0 to 40% by weight based on the total amount of the slurry, and the addition amount is preferably 20 to 40% by weight.

Specifically, the preparation process can be implemented by referring to the pulping process in the papermaking, which belongs to the prior art, and is not discussed in detail in this embodiment.

Step 29, mixing tea leaves or tea stalk slurry and reinforcing fiber slurry to prepare a slurry; for example: tea leaves or tea stalk slurry and reinforcing fiber slurry can be fed into the ingredient pool through a conveying pipe to be thoroughly mixed. A mixed slurry was obtained. In order to thoroughly mix the two slurries and achieve the desired concentration for the preparation, the mixed slurry is further fed into the flushing tank, the filler is added and water is added to dilute the mixed slurry to the desired concentration. Then, the obtained mixed slurry is pumped from the flushing tank into the high-position tank, and the retention aid is added to the high-position tank, and uniformly mixed to prepare a slurry, which is prepared for the papermaking process.

In step 30, the slurry is formed into a sheet base, and the sheet base is subjected to a first drying, coating and second drying treatment to obtain a sheet for tobacco to be applied to the cigarette.

Specifically, on the basis of the above steps, when the step 30 is implemented, the slurry can be sent to the The net is made into a sheet to form a sheet base; at this time, it is also required to dry the sheet base to remove most of the moisture in the sheet base, and then send the dried sheet to the coating tank. Cloth coating solution. Wherein, the effect of the coating liquid is to increase the amount of aroma, remove the impurity, increase the concentration of the smoke, reduce the irritation, and improve the aftertaste and the comfort of the mouth. Therefore, the aqueous solution prepared by the substance having the above-mentioned effects can be used as the embodiment. The coating liquid, the specific selection and treatment are conventional techniques in the field of cigarette production. Finally, the sheet base coated with the coating liquid is again subjected to a drying treatment to obtain a sheet for tobacco.

It should be noted that the process and the steps of preparing the reinforced fiber slurry in the step 28 in this embodiment are described.

The process of preparing the tea or tea stem slurry described in 21-Step 27 is two separate processes, which may be a sequential relationship of the subsequent operations, but does not limit the order of its implementation, and may also be a relationship of parallel operation. The order of the steps in the preparation method of the present embodiment is only a preferred mode. For example, the reinforcing fiber slurry may be prepared first, and then the tea or tea stalk slurry may be prepared; or the reinforcing fiber may be simultaneously prepared. Slurry and tea or tea stem slurry.

The third embodiment of the present invention provides a sheet for tobacco which can be prepared according to the methods provided in the first embodiment and the second embodiment of the present invention.

A fourth embodiment of the present invention provides a cigarette, that is, a flammable portion of the cigarette (in the case of a cigarette with a filter, the portion other than the filter) includes at least a portion of the cigarette prepared by the method of the first embodiment or the second embodiment. Sheet. For common cigarettes, it includes cigarette paper, cut tobacco, and a filter, wherein the tobacco is wrapped in a cigarette paper and attached to the filter. The tobacco shredded tobacco of the present invention is mixed with the tobacco flakes cut by the tobacco flakes, and the flake flakes are wrapped together with the shredded tobacco in the cigarette paper, specifically, the flakes and the flake flakes respectively The shreds are then mixed in a certain ratio, or the flakes and the flakes are mixed in a certain ratio and then shredded together, and then the mixed yarn is rolled into a cigarette.

3 is a flow chart of a method for preparing a cigarette according to a fourth embodiment of the present invention. The method for preparing a tobacco sheet according to the above embodiment is as shown in FIG. 3. The cigarette preparation method of the embodiment includes:

Step 31: preparing a tobacco sheet by using tea or tea stem as raw material;

For detailed procedures of this step, refer to the first embodiment or the second embodiment. The tea or tea stems selected may be tea leaves or tea stems of oolong tea, green tea, black tea or green tea, or tea or tea stems of other teas. The embodiment does not limit this.

In step 32, the flakes and the obtained flakes are respectively shredded, and then mixed in a certain ratio. Alternatively, the flakes are mixed with the obtained flake flakes in a certain ratio, and then shredded together, and then the mixed silk is rolled into a cigarette.

Wherein, the process of shredding the tobacco sheet can be carried out by using a shredding process and equipment in the cigarette processing process, and the cut tobacco shred yarn is preferably substantially the same length and width as the shredded tobacco to be mixed with the ordinary shredded tobacco. Similarly, the process of shredding the flakes and the flakes in a certain ratio and then cutting them together can also be carried out by the shredding process and equipment in the cigarette processing process.

In this embodiment, in the mixture of the tobacco sheet and the shredded tobacco, the content of the shredded tobacco sheet may be from 3 to 100% by weight of the combustible portion of the cigarette, and the mixing ratio may be determined according to different cigarette requirements. When the flammable portion of the cigarette is entirely processed from the tobacco sheet (the tobacco sheet has a silk content of 100% by weight), the obtained cigarette is a safe cigarette completely free of cut tobacco. Of course, in consideration of the hazard of the cigarette to the human body and the preference and demand of the smoker, and the characteristics of the different tea raw materials, in the cigarette provided by the present invention, the amount of the flake filament to be added is preferably controlled to be 20-60% by weight. The combustibility of the thin wire is much higher than that of the cut tobacco, and therefore, the combustibility of the shredded tobacco to which the shredded tobacco is added is improved. When the cigarette is burning, its combustion is more sufficient, thereby reducing the release amount of harmful substances such as CO generated during the combustion process, that is, the harmful substances in the mainstream smoke and the sidestream smoke can be simultaneously reduced, and the harm reduction effect is obtained; Further, the cigarette sheet produced by the cigarette preparation method provided by the embodiment is made of tea or tea stem as a raw material, and the harm reduction effect of the tea or the tea stem itself can be used to improve the harm reduction effect. The use of pre-processed substrate products (thin wires) for the manufacture of cigarettes also ensures the stability of the harm reduction effect.

Further, the cigarettes prepared in the present embodiment were subjected to a sensory evaluation test, and the test results showed that the cigarettes prepared in the present embodiment basically maintained the original flavor-absorbing style, and the tobacco flakes in different proportions were added in the flue gas. Hazardous substances such as ammonia, 3, 4-benzopyrene, phenol, crotonaldehyde, CO, hydrocyanic acid and nitrosamines were all significantly reduced.

The action and effect of the tobacco sheet prepared in the examples of the present invention in cigarettes will be described below by specific experimental data.

The oolong tea stalks were subjected to pulping, papermaking, etc. according to the method of Example 1 to prepare tobacco sheets for use in the manufacture of cigarettes, and the following experiments were carried out:

Experiment 1 The tobacco sheet from the oolong tea stem is shredded and mixed with ordinary cut tobacco at a mass ratio of 50% to form a cigarette. After the sensory evaluation, the original smoking style of the cigarette is basically unchanged, and the smoke test results show that the ammonia in the mainstream smoke is reduced by 16.0% compared with the cigarette without the added tobacco filament, and the hydrogen cyanide is lowered. 15%, 3, 4-benzopyrene decreased by 38.7%, phenol decreased by 56.8%, crotonaldehyde decreased by 24.3%, CO decreased by 4%, nitrosamine decreased by 37%, harmful components of sidestream smoke There is also a significant reduction, and the harm reduction effect is remarkable.

Experiment 2

The tobacco was shredded with a sheet and mixed with ordinary cut tobacco at a mass ratio of 25% to form a cigarette. After the sensory evaluation, the original smoking style of the cigarette is basically unchanged, and the smoke test results show that the ammonia in the mainstream smoke is reduced by 14.3% compared with the cigarette without the added tobacco filament, and the hydrogen cyanide is lowered. 14%, 3, 4-benzopyrene decreased by 32.5%, phenol decreased by 35.2%, crotonaldehyde decreased by 35.1%, CO decreased by 3.8%, nitrosamine decreased by 30%, and harmful components of sidestream smoke It is also significantly reduced, and the harm reduction effect is obvious.

The green tea stalks are processed according to the method of the second embodiment by pulping, papermaking, etc., and are used for making cigarettes. The relevant experimental results are as follows:

Experiment 3

The tobacco was shredded with a sheet and mixed with ordinary cut tobacco at a mass ratio of 50% to form a cigarette. After the sensory evaluation, the original smoking style of the cigarette is basically unchanged, and the smoke test results show that the ammonia in the mainstream smoke is reduced by 14% compared with the cigarette without the added tobacco filament, and the hydrogen cyanide is lowered. 15%, 3, 4-benzopyrene decreased by 36.7%, phenol decreased by 52.3%, crotonaldehyde decreased by 40.3%, CO decreased by 4%, nitrosamine decreased by 41%, harmful components of sidestream smoke There is also a significant reduction, and the harm reduction effect is remarkable.

Experiment 4

The tobacco was shredded with a sheet and mixed with ordinary cut tobacco at a mass ratio of 25% to form a cigarette. After the sensory evaluation, the original smoking style of the cigarette is basically unchanged, and the smoke test results show that the ammonia in the mainstream smoke is reduced by 15% compared with the cigarette without the added tobacco filament, and the hydrogen cyanide is lowered. 13.5%, 3, 4-benzopyrene decreased by 30.7%, phenol decreased by 51.3%, crotonaldehyde decreased by 31.3%, CO decreased by 3.2%, nitrosamine decreased by 32%, and harmful components of sidestream smoke It is also significantly reduced, and the harm reduction effect is outstanding. Further, it can be seen from the above experimental data that the technical solution of the present invention prepares tobacco sheets by using tea leaves or tea stems as raw materials, and applies the prepared tobacco sheets to cigarettes, not only in keeping the smoking style of cigarettes substantially unchanged. The utility model can effectively reduce the release amount of harmful substances in the mainstream smoke and sidestream smoke of the cigarette, and at the same time, can alleviate the shortage of the tobacco raw material supply in the tobacco industry, and has great social and economic benefits.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for preparing a sheet for tobacco, wherein the sheet for tobacco is made of tea or tea stem, and the preparation method comprises the following steps:

The tea or tea stem is placed in water at 60-80 ° C for 30-30 minutes to obtain tea leaves or tea stem swelling, or the tea or tea stem is placed in normal temperature water for time. for

0.5-6 hours of soaking treatment to obtain tea or tea stem swelling;

The tea or tea stem crude fiber is placed in water at 60-80 ° C for a washing time of 20-30 minutes to obtain tea leaves or tea stem fibers, or the tea or tea stem crude fiber is placed in normal temperature water for a time. For 30-60 minutes of washing treatment to obtain tea or tea stem fibers;

The tea or tea stem fiber is refining to prepare a tea or tea stem slurry;

The slurry is copied into a sheet base, and the sheet base is first dried and coated.

The method for preparing a sheet for tobacco according to claim 1, wherein the amount of water or room temperature water in the soaking treatment at 60-80 ° C is 10-15 of the weight of the tea or tea stem. In the washing treatment, the amount of water at 60-80 ° C or room temperature water is 10-15 times the weight of the crude fiber of the tea or tea stem.

The method for preparing a sheet for tobacco according to claim 1, wherein the tea leaf or the tea stem swelling is separated from the soaked 60-80 ° C water or normal temperature water to carry out the twisting. The tea or tea stem crude fiber is obtained, and the water of 60-80 ° C or the normal temperature water after separating the tea or the tea stem swelling is returned to the soaking treatment process for recycling.

The method for preparing a sheet for tobacco according to claim 1, wherein the tea or tea stem fiber is separated from the washed water of 60-80 ° C or normal temperature water for refining. The tea or tea stem slurry is prepared, and the water of 60-80 ° C or the water of normal temperature after separating the tea or tea stem fiber is returned to the soaking treatment process for recycling.

The method for preparing a sheet for tobacco according to claim 1, wherein the step of refining the tea or tea stem fiber to prepare a tea or tea stem slurry comprises: The tea or tea stem fiber is sent to a high concentration mill for the first refining treatment to obtain a coarse pulp; the coarse pulp is sent to a double disc mill for a second refining treatment to obtain a fine pulp, the fine pulp For the tea or tea stalk slurry.

The method for preparing a sheet for tobacco according to claim 1, wherein the tea or tea stem slurry is mixed with the reinforcing fiber slurry obtained by the refining treatment to prepare a slurry. Includes:

The tea or tea stalk slurry and the reinforced fiber slurry are fed into a batching tank for mixing to obtain a mixed slurry;

The mixed slurry is sent to the flushing tank, the filler is added and diluted with water to a preset concentration; the mixed slurry diluted to the preset concentration is sent to the high-position tank, the retention aid is added and mixed uniformly to prepare The slurry is formed.

The method for preparing a sheet for tobacco according to claim 1, wherein the slurry is formed into a sheet base, and the sheet base is first dried, coated and second. The drying process to obtain the tobacco sheet for use in cigarettes includes:

And the slurry is sent to a forming wire for papermaking to form the sheet base;

The sheet base is subjected to a first drying treatment, and the sheet base subjected to the first drying treatment is sent to a coating tank coating coating liquid;

The coated sheet base is subjected to a second drying treatment to obtain the tobacco sheet applied to the cigarette.

The method for producing a sheet for tobacco according to any one of claims 1 to 7, wherein the sheet for tobacco has a thickness of 0.3 to 0.4 mm.

9. A sheet for tobacco prepared by the method of any of claims 1-8.

A cigarette characterized in that the flammable portion of the cigarette comprises at least a tobacco sheet which is processed by the tobacco sheet according to claim 9.

The cigarette according to claim 10, wherein the tobacco flakes have a silk content of from 3 to 100% by mass of the flammable portion of the cigarette, and the balance is shredded tobacco.