Preparation method of ultra-low tar flue-cured tobacco type fine cigarette

Abstract

The invention relates to a preparation method of ultralow-tar flue-cured tobacco type fine cigarettes, which comprises the following steps: selecting tobacco leaves with low sugar content and high alkali content according to a formula of a low-tar fine tobacco leaf group, and blending with low-tar high-aroma slices; determining key process parameters of the low-temperature aroma-keeping processing technology; the low-tar charging and perfuming design comprises a material liquid module and a perfuming module; the feed liquid module is mainly composed of a caramel sweet system; the perfuming module is mainly used for roasting fragrance and fruit fragrance and endows the set spicy fragrance and flower fragrance, and the effects of improving the fragrance quality, improving the sweetness and improving the taste are achieved; the low-tar fine cigarette auxiliary material is a high-adsorption and medium-ventilation dilution auxiliary material. According to the technical scheme, the flavor blending main material tobacco which is low in sugar-alkali ratio, high in alkali content, rich in fragrance, good in fragrance quality and sufficient in concentration is selected, so that the fragrance and the plumpness of smoke are increased, and the smoking satisfaction is improved; high-adsorption and medium-ventilation dilution auxiliary materials are matched, so that the aroma quality and the comfort degree of the low-tar cigarettes are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette design and processing, and particularly relates to a method for preparing ultra-low tar flue-cured tobacco type slim cigarettes. Background Art

[0002] Related studies have shown that the harmful components of cigarette smoke mainly come from cigarette tar, and smoking low-tar cigarettes can effectively reduce the exposure to some harmful components. As people pay more and more attention to health issues, reducing tar and reducing harm has become a social consensus. Consumers' demand for low-tar cigarettes is increasing day by day, and they also have higher requirements for low-tar cigarettes. Therefore, low-tar cigarettes have become the focus of product research and development in the tobacco industry.

[0003] Cigarettes are a hobby consumer product. Consumers pursue low tar and also have a certain physiological satisfaction, aroma quality and comfort. Existing low-tar cigarettes are mainly achieved by increasing ventilation dilution, improving filter material retention, low-tar leaf group formula or a combination of two technologies. CN201620380375.X published a filter cigarette with adjustable tar content by adjusting the number of air holes; CN201810622587.8 published a method of using plasma-modified coconut shell charcoal to load hyperbranched lactate, adsorb CO and tar in flue gas, and improve flue gas comfort. The application of the above method has a certain effect on achieving low tar and improving aroma quality, but after a large proportion of dilution and retention of flue gas, cigarette smoke will have a dry feeling, and the physiological satisfaction and aroma quality of smoking will also decrease. CN201410124658.3 published a low-tar mixed expanded tobacco and its application in low-tar cigarettes. CN201410818751.4 discloses an improved low-tar blended cigarette. The above method uses low-tar blended cigarettes as raw materials in the leaf group formula, which plays a certain role in reducing the tar of cigarettes. However, the special aroma style of blended cigarettes will affect the aroma characteristics of flue-cured tobacco and cannot be accepted by most consumers. Therefore, after reducing the tar content, how to maintain the flue-cured tobacco style characteristics of cigarette products while having a considerable sense of satisfaction and relatively good aroma quality and comfort is a problem that needs to be solved in the development process of low-tar cigarettes. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing ultra-low tar flue-cured tobacco type slim cigarettes, so as to solve the problems of the existing low tar slim cigarettes in terms of physiological satisfaction of smoking, aroma quality characteristics, dryness of smoke, etc.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A method for preparing ultra-low tar flue-cured tobacco type slim cigarettes, comprising the following steps:

[0007] S1, low tar slim tobacco group formula:

[0008] Choose tobacco leaves with low sugar content and high alkali content, and mix them with low-coke and high-aroma flakes;

[0009] S2, low temperature fragrance preservation processing technology:

[0010] The key process parameters of this process are: the shred width is 0.9-1mm, the steam flow rate of the shred heating and humidifying machine is 130-180kg / h, the drum drying wall temperature is 128-140℃, and the moisture content of the shredded leaves after drying is 12.5-13.0%;

[0011] S3, low tar flavoring design:

[0012] It includes a liquid material module and a flavoring module; the liquid material module is mainly based on a caramel sweet system, and the addition amount is 0.5%-6% of the total weight of the leaf group formula; the flavoring module is mainly based on roasted aroma and fruity aroma, and is given a set spicy aroma and floral aroma, which plays a role in improving the aroma quality, sweetness and taste, and the addition amount is 0.01%-1% of the total weight of the leaf group formula;

[0013] S4. Design of auxiliary materials for low-tar slim cigarettes:

[0014] The low-tar slim cigarette auxiliary material is a combination of high adsorption and medium ventilation dilution auxiliary materials, specifically 30-50cu hemp-containing cigarette paper, 62-68% mouth section ventilation, and 4500-5200Pa ternary composite filter rod.

[0015] Preferably, the tobacco leaves with low sugar content and high alkali content in step S1 are composed of 20-36 parts of the first tobacco leaf group, 20-26 parts of the second tobacco leaf group, 20-34 parts of the third tobacco leaf group, 6-16 parts of the fourth tobacco leaf group and 2-6 parts of the fifth tobacco leaf group by weight; the low-tar high-aroma flakes are blended based on the total amount of the above-mentioned tobacco leaf raw materials, with 15%-20% of the low-tar high-aroma flakes blended.

[0016] Preferably, the first tobacco leaf group has a sugar-alkali ratio of 4-7, an alkali content of not less than 3.0%, and comes from more than one imported tobacco leaf; the second tobacco leaf group has a sugar-alkali ratio of 4-10, an alkali content of not less than 2.8%, and comes from Yunnan tobacco leaves; the third tobacco leaf group has a sugar-alkali ratio of 4-10, an alkali content of not less than 2.8%, and comes from Henan tobacco leaves; the fourth tobacco leaf group has a sugar-alkali ratio of 4-9, an alkali content of not less than 2.9%, and comes from Hunan tobacco leaves; the fifth tobacco leaf group has a sugar-alkali ratio of 8-13, an alkali content of not less than 2.4%, and comes from Guizhou tobacco leaves.

[0017] Preferably, the preparation process of the low-coke high-fragrance slice is:

[0018] The raw materials of tobacco leaves and tobacco stems in a weight ratio of 3-5:7-5 are soaked in water, pulped, filtered, and the insoluble matter is pressed into a sheet base, the extract is treated with alcohol precipitation, and the flavor enhancement module is added and evenly coated on the sheet base, sliced, dried, and then cut into pieces;

[0019] The alcohol precipitation treatment of the extract is to add ethanol to the extract to form an alcohol solution, the concentration of the alcohol solution is controlled between 50% and 80%, stirred and allowed to stand at 0°C to room temperature for 8h to 48h, filtered, and distilled under reduced pressure;

[0020] The flavoring module comprises one or more components selected from maltol, maple extract, fenugreek extract, Maillard reactant, and tobacco extract, and the added amount of the flavoring module is 0.05%-0.2% of the total mass of the slice.

[0021] Preferably, in step S3, the liquid module is prepared by mixing 2-7 parts of strong-flavor tobacco extract, 2-7 parts of maple extract, 2-5 parts of fenugreek extract, 0.2-0.5 parts of MCP, 0.5-1 parts of ethyl maltol, 2-8 parts of potassium citrate, 0.5-1 parts of fermented fruit extract, 50-60 parts of propylene glycol, and 40-50 parts of water.

[0022] Preferably, in step S3, the flavoring module is composed of one or more flavors selected from tobacco flavor, caramel sweet flavor, baking flavor, nutty flavor, spicy flavor, floral flavor, and fruity flavor, plus a humectant.

[0023] Preferably, in step S4, the ternary composite filter rod is composed of a paper filter rod, acetate fiber and a leaf-shaped empty tube.

[0024] Preferably, the length of the ternary composite filter rod is 30-35 mm, wherein the length of the paper filter rod is 10-20 mm, the length of the acetate fiber is 5-10 mm, and the length of the leaf-shaped empty tube is 5-10 mm.

[0025] The beneficial effects of the present invention are:

[0026] 1. The flake preparation method of the present invention can remove macromolecules such as sugars, proteins, pectin, etc. that produce tar through incomplete combustion through alcohol precipitation process, thereby significantly reducing the tar generation of the prepared flakes. The external flavor enhancement module can enhance the natural tobacco aroma and fullness of the flakes, thereby improving the smoking comfort.

[0027] 2. The shredded tobacco prepared by the present invention aims at the defects of existing low-tar cigarettes, such as weak smoking satisfaction, poor aroma and low concentration. The main flavoring tobacco with low sugar-alkali ratio, high alkali content, strong aroma, good aroma quality and sufficient concentration is selected to increase the fullness of aroma and smoke and improve the smoking satisfaction. The seasoning tobacco leaves with moderate strength and clean and comfortable aftertaste are selected to improve the smoking comfort of the product, coordinate the aroma and activate the smoke. The low-temperature aroma preservation processing technology and aroma replenishment technology are used to reduce the aroma loss, increase the aroma concentration and improve the aroma quality.

[0028] 3. The present invention adopts a combination of high-adsorption and medium-ventilation dilution auxiliary materials. Low-permeability cigarette paper can improve the smoothness of the first few puffs and improve the consistency of smoking before and after the cigarette; plasma punching or online laser punching can improve ventilation stability, and plasma punching is preferred to improve the fineness of the smoke and the aroma quality; the ternary composite filter rod composed of leaf-shaped empty tube + acetate fiber + paper filter rod can provide high interception, good sensory comfort and a certain novelty in appearance; the combination of the above auxiliary materials can effectively reduce the tar content of the smoke. Compared with high-ventilation dilution, medium-ventilation dilution can reduce the proportion of air in the smoke, increase the smoke flow rate, and increase the amount of aroma inhaled, thereby improving the aroma quality and comfort of low-tar cigarettes. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0030] The invention designs a low-tar thin tobacco leaf group formula based on flue-cured tobacco leaf raw materials with low sugar content and high alkali content; adopts low-temperature aroma preservation processing technology and low-tar material adding and flavoring technology, mixes low-tar high-aroma thin slices to make finished shredded tobacco, and rolls it with low-tar thin cigarette auxiliary materials.

[0031] The formula technology of low-tar slim tobacco group is to select tobacco leaves with lower sugar content and higher alkali content, and blend them with low-tar high-aroma flakes; specifically, 20-36 parts of imported tobacco leaves from the United States, Brazil, Zimbabwe, etc., with a sugar-alkali ratio of 4-7, and an alkali content of not less than 3.0%; 20-26 parts of Yunnan tobacco leaves from Kunming, Qujing, Honghe, Dehong, etc., with a sugar-alkali ratio of 4-10, and an alkali content of not less than 2.8%; 20-34 parts of Henan tobacco leaves from Xuchang, Pingdingshan, Sanmenxia, ​​etc., with a sugar-alkali ratio of 4-10, and an alkali content of not less than 2.8%; 6-16 parts of Hunan tobacco leaves from Chenzhou, Yongzhou, etc., with a sugar-alkali ratio of 4-9, and an alkali content of not less than 2.9%; 2-6 parts of Guizhou tobacco leaves, with a sugar-alkali ratio of 8-13, and an alkali content of not less than 2.4%; based on the total weight of the above-mentioned tobacco raw materials, 15%-20% of low-tar high-aroma flakes are blended.

[0032] The production process of low-coke and high-aroma thin slices is to soak and pulp the raw materials with a ratio of tobacco leaves and tobacco stems of 3-5:7-5, filter out the insoluble matter and press it into a sheet base, the extract is treated with alcohol precipitation, and after adding the flavor enhancement module, it is evenly coated on the sheet base, sliced, dried and then cut into shreds. The alcohol precipitation treatment of the extract is to add ethanol to the extract to form an alcohol solution, and the concentration of the alcohol solution is controlled between 50%-80%. It is stirred and allowed to stand at 0℃-normal temperature for 8h-48h, filtered and distilled under reduced pressure. The components of the flavor enhancement module are maltols, maple extract, fenugreek extract, Maillard reactant, tobacco extract and other flavoring and enriching spices or a combination of all of them, and the added amount is 0.05%-0.2% of the total mass of the thin slice;

[0033] The key process parameters of the low-temperature aroma preservation processing technology are: shred width of 0.9-1mm, steam flow of the shredded leaf heating and humidifying machine of 130-180kg / h, drum drying wall temperature of 128-140℃, and moisture content of the shredded leaves after drying of 12.5-13.0%.

[0034] The low-tar flavoring technology is designed according to the needs of the cigarette product style. The liquid module is mainly based on the sweet and burnt system, which is composed of 2-7 parts of strong-flavor tobacco extract, 2-7 parts of maple extract, 2-5 parts of fenugreek extract, 0.2-0.5 parts of MCP, 0.5-1 parts of ethyl maltol, 2-8 parts of potassium citrate, 0.5-1 parts of fermented fruit extract, 50-60 parts of propylene glycol, and 40-50 parts of water. The addition amount is 0.5%-6% of the leaf group formula. The flavoring module is mainly based on roasted aroma and fruity aroma, and gives a certain spicy and floral aroma. It mainly plays the role of improving the aroma quality, sweetness and taste. It can be composed of one or several types of spices from tobacco, sweet and burnt aroma, roasted aroma, nutty aroma, spicy aroma, floral aroma, and fruity aroma plus a humectant. The addition amount is 0.01%-1% of the total weight of the leaf group formula;

[0035] The auxiliary materials of low-tar slim cigarettes are designed to be a combination of high adsorption and medium ventilation dilution auxiliary materials, specifically 30-50cu hemp-containing cigarette paper, 62-68% mouth ventilation, and 4500-5200Pa ternary composite filter rods; mouth ventilation can be achieved through 600cu-800cu plasma perforated tipping paper (hole band width 6-9mm, 11-13mm from the mouth end) or online perforation (two rows of holes, the first row is 13mm from the mouth end, and each row has 17-20 holes) The current nozzle ventilation is 62%-68%, and 600cu-800cu plasma perforated tipping paper (hole band width 6-9mm, 11-13mm from the nozzle end) is preferred to achieve nozzle ventilation of 62%-68%; the ternary composite filter rod is composed of a paper filter rod, acetate fiber and a leaf-shaped empty tube, with a length of 30-35mm, of which the paper filter rod is 10-20mm long, the acetate fiber is 5-10mm long, and the leaf-shaped empty tube is 5-10mm long.

[0036] Preparation Example 1

[0037] A method for preparing a low-coke high-fragrance slice comprises the following steps:

[0038] The raw materials of tobacco leaves and tobacco stems with a ratio of 5:5 were soaked and pulped, and the insoluble matter was filtered and pressed into a sheet base. The extract was added with ethanol to form an alcohol solution with a concentration of 75%, stirred at 5°C and left to stand for 36 hours, filtered and distilled under reduced pressure. The flavor enhancement module was added to the extract after alcohol precipitation in a ratio of 0.05% of the total weight of the slices, and malt phenols, maple extract, fenugreek extract, Maillard reactant, and tobacco extract were added in a ratio of 2:1:1:2:4, respectively, and stirred evenly, and then evenly coated on the sheet base, sliced, dried, and shredded to make low-coke and high-fragrance slices P1.

[0039] Preparation Example 2

[0040] A method for preparing a low-coke high-fragrance slice comprises the following steps:

[0041] The raw materials of tobacco leaves and tobacco stems with a ratio of 3:7 were soaked in water, pulped, filtered, and the insoluble matter was pressed into a sheet base. The extract was added with ethanol to form an alcohol solution with a concentration of 75%, stirred and allowed to stand for 36 hours at 5°C, filtered, and distilled under reduced pressure. The flavor enhancement module was added to the extract after alcohol precipitation in a ratio of 0.1% of the total weight of the slices, and malt phenols, maple extract, fenugreek extract, Maillard reactant, and tobacco extract were added in a ratio of 3:1:1:3:4, respectively, stirred evenly, filtered, and then evenly coated on the sheet base, sliced, dried, and shredded to make low-coke and high-fragrance slices P2.

[0042] Preparation Example 3

[0043] A method for preparing a low-coke high-fragrance slice comprises the following steps:

[0044] The raw materials of tobacco leaves and tobacco stems with a ratio of 5:7 were soaked in water, pulped, filtered, and the insoluble matter was pressed into a sheet base. The extract was added with ethanol to form an alcohol solution with a concentration of 75%, stirred and allowed to stand for 48 hours at 5°C, filtered, and distilled under reduced pressure. The flavor enhancement module was added to the extract after alcohol precipitation in a ratio of 2:2:1:3:4, with malt phenols, maple extract, fenugreek extract, Maillard reactant, and tobacco extract in a ratio of 0.2% of the total weight of the slices, stirred evenly, filtered, and then evenly coated on the sheet base, sliced, dried, and shredded to make low-coke and high-fragrance slices P3.

[0045] The low-tar and high-aroma slices P1 to P3 were rolled into thin cigarettes with conventional auxiliary materials and placed in a constant temperature and humidity room for 48 hours for moisture balance of the cut tobacco (22°C, 60% humidity). The sensory quality of the reconstituted tobacco leaves (papermaking method) was evaluated and the physicochemical indexes were measured (compared with the flue-cured tobacco slices made by conventional methods). The results are shown in Table 1.

[0046] Table 1 Sensory quality evaluation and index testing

[0047]

[0048] The analysis results show that the tar content of the three preparation examples of the low-tar high-aroma flakes of the present invention is reduced by more than 26.3% compared with the conventional flakes, with the maximum reduction being 34.88%. They all have good aroma characteristics, the smoke is comfortable and not dry, the concentration and aftertaste are slightly better, and the filling value does not change much.

[0049] Preparation Example 4

[0050] A method for preparing low-tar, high-aroma tobacco shreds comprises the following steps:

[0051] Take 8 parts of Zimbabwean tobacco leaves, 8 parts of Brazilian tobacco leaves, and 10 parts of American tobacco leaves, with a sugar-alkali ratio of 6 and an alkali content of 3.3%; take 6 parts of Kunming tobacco leaves, 6 parts of Qujing tobacco leaves, 8 parts of Honghe tobacco leaves, and 4 parts of Dehong tobacco leaves, with a sugar-alkali ratio of 7 and an alkali content of 2.9%; take 14 parts of Xuchang tobacco leaves, 10 parts of Pingdingshan tobacco leaves, and 6 parts of Sanmenxia tobacco leaves, with a sugar-alkali ratio of 8 and an alkali content of 2.8%; take 10 parts of Chenzhou tobacco leaves and 6 parts of Yongzhou tobacco leaves, with a sugar-alkali ratio of 8 and an alkali content of 2.9%; take 4 parts of Bijie tobacco leaves, with a sugar-alkali ratio of 10 and an alkali content of 2.4%.

[0052] Silk making process:

[0053] The liquid module is prepared by mixing 4 parts of strong-flavor tobacco extract, 5 parts of maple extract, 3 parts of fenugreek extract, 0.3 parts of MCP, 0.9 parts of ethyl maltol, 6 parts of potassium citrate, 0.8 parts of fermented fruit extract, 58 parts of propylene glycol and 48 parts of water, and the added amount is 2.5% of the weight of the leaf group formula.

[0054] The shredded tobacco has a width of 0.9 mm, a steam flow rate of 160 kg / h, a drum drying wall temperature of 132°C, and a moisture content of 12.8% after drying. After drying, 20% of the total weight of the shredded tobacco is mixed with low-coke, high-aroma flakes P1.

[0055] The flavoring module is prepared by mixing 1 part of tobacco extract, 2 parts of tobacco tincture, 0.2 parts of tonka bean tincture, 100 parts of propylene glycol and 75.8 parts of alcohol, and the added amount is 0.6% of the weight of the leaf group formula to produce low-tar, high-aroma tobacco K1.

[0056] Preparation Example 5

[0057] A method for preparing low-tar, high-aroma tobacco shreds comprises the following steps:

[0058] Take 10 parts of Zimbabwean tobacco leaves, 10 parts of Brazilian tobacco leaves, and 4 parts of American tobacco leaves, with a sugar-alkali ratio of 6.5 and an alkali content of 3.2%; take 10 parts of Kunming tobacco leaves, 8 parts of Qujing tobacco leaves, 4 parts of Honghe tobacco leaves, and 4 parts of Dehong tobacco leaves, with a sugar-alkali ratio of 5.8 and an alkali content of 2.85%; take 14 parts of Xuchang tobacco leaves, 8 parts of Pingdingshan tobacco leaves, and 8 parts of Sanmenxia tobacco leaves, with a sugar-alkali ratio of 7 and an alkali content of 2.9%; take 10 parts of Chenzhou tobacco leaves and 4 parts of Yongzhou tobacco leaves, with a sugar-alkali ratio of 6 and an alkali content of 3.0%; take 6 parts of Bijie tobacco leaves, with a sugar-alkali ratio of 10 and an alkali content of 2.4%.

[0059] Silk making process:

[0060] The liquid module is prepared by mixing 5 parts of strong-flavor tobacco extract, 7 parts of maple extract, 2 parts of fenugreek extract, 0.2 parts of MCP, 1 part of ethyl maltol, 8 parts of potassium citrate, 1 part of fermented fruit extract, 50 parts of propylene glycol and 50 parts of water, and the added amount is 2.5% of the weight of the leaf group formula.

[0061] The shredded width is 0.9mm, the steam flow of the shredded tobacco heating and humidifying machine is 160kg / h, the wall temperature of the drum drying is 132℃, and the moisture content of the shredded tobacco after drying is 12.5%. After drying, low-coke and high-aroma flakes P2 are added according to 15% of the total weight of the tobacco leaves.

[0062] The flavoring module is prepared by mixing 1 part of tobacco extract, 2 parts of tobacco tincture, 0.2 parts of tonka bean tincture, 100 parts of propylene glycol and 75.8 parts of alcohol, and the added amount is 0.6% of the weight of the leaf group formula to produce low-tar, high-aroma tobacco K2.

[0063] Preparation Example 6

[0064] A method for preparing low-tar, high-aroma tobacco shreds comprises the following steps:

[0065] Take 10 parts of Zimbabwean tobacco leaves, 8 parts of Brazilian tobacco leaves, and 4 parts of American tobacco leaves, with a sugar-alkali ratio of 6.1 and an alkali content of 3.0%; take 10 parts of Kunming tobacco leaves, 6 parts of Qujing tobacco leaves, 6 parts of Honghe tobacco leaves, and 4 parts of Dehong tobacco leaves, with a sugar-alkali ratio of 5.2 and an alkali content of 2.9%; take 14 parts of Xuchang tobacco leaves, 10 parts of Pingdingshan tobacco leaves, and 6 parts of Sanmenxia tobacco leaves, with a sugar-alkali ratio of 6 and an alkali content of 3.2%; take 10 parts of Chenzhou tobacco leaves and 6 parts of Yongzhou tobacco leaves, with a sugar-alkali ratio of 6.5 and an alkali content of 3.1%; take 6 parts of Bijie tobacco leaves, with a sugar-alkali ratio of 10 and an alkali content of 2.4%.

[0066] Silk making process:

[0067] The liquid module is prepared by mixing 7 parts of strong-flavor tobacco extract, 7 parts of maple extract, 5 parts of fenugreek extract, 0.5 parts of MCP, 0.5 parts of ethyl maltol, 3 parts of potassium citrate, 0.5 parts of fermented fruit extract, 50 parts of propylene glycol and 47 parts of water, and the added amount is 2.5% of the weight of the leaf group formula.

[0068] The shred width is 0.9mm, the steam flow of the shred heating and humidifying machine is 160kg / h, the wall temperature of the drum drying is 132℃, and the moisture content of the shredded leaves after drying is 12.5%. After drying, low-coke and high-aroma flakes P3 are added according to 18% of the total weight of the tobacco leaves.

[0069] The flavoring module is prepared by mixing 1 part of tobacco extract, 2 parts of tobacco tincture, 0.2 parts of black tonk bean tincture, 100 parts of propylene glycol and 75.8 parts of alcohol, and the added amount is 0.6% of the weight of the leaf group formula to produce low-tar, high-aroma tobacco K3.

[0070] According to the conventional cigarette auxiliary materials, K1 to K3 were rolled into slim cigarettes. The cigarettes were placed in a constant temperature and humidity room for moisture balance (22°C, 60% humidity) for 48 hours, and then evaluated for smoking and measured for physical and chemical indicators (compared with conventional flue-cured tobacco slim cigarettes). The results are shown in Table 2.

[0071] Table 2 Product comparison evaluation table

[0072]

[0073] The analysis results show that the low-tar fine leaf group formula design of the present invention can reduce the tar release while reducing the irritation and providing good physiological satisfaction after smoking. It can also achieve a harmonious and bright aroma, a rich and full smoke, a sweet and natural taste, and a clean and comfortable aftertaste.

[0074] Preparation Example 7

[0075] A preparation method of low-tar fine auxiliary material is as follows:

[0076] The auxiliary materials for ultra-low tar flue-cured slim cigarettes are 35cu hemp-containing cigarette paper and 650cu plasma perforated tipping paper (hole band width 8mm, 12mm from the mouth end). The filter rod uses a ternary composite filter rod with a length of 30mm, of which the paper filter rod is 15mm long, the acetate fiber is 8mm long, the leaf-shaped empty tube is 7mm long, the pressure drop is 4600Pa, and the mouth section ventilation is 65%. Made into cigarette auxiliary material M1.

[0077] Preparation Example 8

[0078] A preparation method of low-tar fine auxiliary material is as follows:

[0079] The auxiliary materials for ultra-low tar flue-cured slim cigarettes are 40cu hemp-containing cigarette paper and 700cu plasma perforated tipping paper (hole band width 8mm, 12mm from the mouth end). The filter rod uses a ternary composite filter rod with a length of 30mm, of which the paper filter rod is 15mm long, the acetate fiber is 8mm long, the leaf-shaped empty tube is 7mm long, the pressure drop is 4800Pa, and the mouth section ventilation is 67%. Made into cigarette auxiliary material M2.

[0080] Preparation Example 9

[0081] A preparation method of low-tar fine auxiliary material is as follows:

[0082] The auxiliary materials for ultra-low tar flue-cured slim cigarettes are 45cu hemp-containing cigarette paper and 750cu plasma perforated tipping paper (hole band width 8mm, 12mm from the mouth end). The filter rod uses a ternary composite filter rod with a length of 30mm, of which the paper filter rod is 15mm long, the acetate fiber is 8mm long, the leaf-shaped empty tube is 7mm long, the pressure drop is 5100Pa, and the mouth section ventilation is 68%. Made into cigarette auxiliary material M3.

[0083] After the cigarette auxiliary materials M1 to M3 were made into ultra-low tar slim cigarettes using conventional finished tobacco, they were placed in a constant temperature and humidity room for tobacco moisture balance (22°C, 60% humidity) for 48 hours, and then smoked and measured for physical and chemical indicators (compared with conventional flue-cured ultra-low tar slim cigarettes). The results are shown in Table 3.

[0084] Table 3 Index detection and quality characteristics comparison

[0085]

[0086] The analysis results show that the auxiliary material design of the present invention adopts a combination of high adsorption and medium ventilation dilution auxiliary materials. Compared with conventional low-tar cigarettes with high adsorption and high ventilation dilution, it reduces the proportion of air in the smoke and has a slightly higher tar content, but reduces the aroma loss of the cigarette, the smoke is not dry, and the smoke comfort is improved.

[0087] Example 1

[0088] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar high-aroma thin sheet P1 of Preparation Example 1, the low-tar, high-aroma tobacco shreds K1 of Preparation Example 4, and the M1 of Preparation Example 7 are selected to prepare an ultra-low tar flue-cured tobacco type slim cigarette H1.

[0089] Example 2

[0090] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar high-aroma thin sheet P2 of Preparation Example 2, the low-tar, high-aroma tobacco shreds K2 of Preparation Example 5, and the M2 of Preparation Example 8 are selected to prepare ultra-low tar flue-cured tobacco type slim cigarettes H2.

[0091] Example 3

[0092] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar high-aroma thin sheet P3 of Preparation Example 3, the low-tar, high-aroma tobacco K3 of Preparation Example 6, and the M3 of Preparation Example 9 are selected to prepare an ultra-low tar flue-cured tobacco type slim cigarette H3.

[0093] Example 4

[0094] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar, high-aroma tobacco K1 of Preparation Example 4 and M3 of Preparation Example 9 are selected to prepare ultra-low tar flue-cured tobacco type slim cigarette H4.

[0095] Example 5

[0096] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar, high-aroma tobacco K1 of Preparation Example 4 and M2 of Preparation Example 8 are selected to prepare ultra-low tar flue-cured tobacco type slim cigarette H5.

[0097] Example 6

[0098] A method for preparing an ultra-low tar flue-cured tobacco type slim cigarette is disclosed. The low-tar, high-aroma tobacco K2 of Preparation Example 5 and M1 of Preparation Example 7 are selected to prepare ultra-low tar flue-cured tobacco type slim cigarette H6.

[0099] The slim cigarettes H1 to H6 of the present invention and conventional ultra-low tar slim cigarettes were placed in a constant temperature and humidity room for 48 hours for moisture balance (22° C., 60% humidity), and then subjected to sensory evaluation and comparison. The results are shown in Table 4.

[0100] Table 4 Sensory evaluation comparison

[0101]

[0102] The analysis results show that the ultra-low tar flue-cured tobacco type slim cigarettes of the present invention maintain better aroma quality, lower impurities, clean aftertaste and better taste compared with the control products.

[0103] The method of the present invention adopts a comprehensive tar reduction method, supplemented by a flavoring and moisturizing additive, which can make the tar release of the mainstream smoke of the cigarette reach 3 mg while maintaining the aroma quality and smoking satisfaction of the cigarette. According to the smoking test, the ultra-low tar flue-cured tobacco type slim cigarette of the present invention can continue the product style of flue-cured tobacco type cigarettes, with a fuller aroma, smooth smoke, sweet taste, and a clean and comfortable aftertaste.

[0104] Although the present invention has been disclosed as above by the embodiments, it is not intended to limit the present invention. Any person skilled in the art may make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is limited by the claims and their equivalents.

Claims

1. A method for preparing ultra-low tar flue-cured tobacco type slim cigarettes, characterized in that: The following steps are involved: S1, low tar slim tobacco group formula: Choose tobacco leaves with low sugar content and high alkali content, and mix them with low-coke and high-aroma flakes; S2, low temperature fragrance preservation processing technology: The key process parameters of this process are: the shred width is 0.9-1 mm, the steam flow rate of the shred heating and humidifying machine is 130-180 kg / h, the drum drying wall temperature is 128-140 ℃, and the moisture content of the shredded leaves after drying is 12.5-13.0%; S3, low tar flavoring design: It includes a liquid material module and a flavoring module; the liquid material module is mainly based on a caramel sweet system, and the addition amount is 0.5%-6% of the total weight of the leaf group formula; the flavoring module is mainly based on roasted aroma and fruity aroma, and is given a set spicy aroma and floral aroma, which plays a role in improving the aroma quality, sweetness and taste, and the addition amount is 0.01%-1% of the total weight of the leaf group formula; S4. Design of auxiliary materials for low-tar slim cigarettes: The low-tar slim cigarette auxiliary material is a combination of high adsorption and medium ventilation dilution auxiliary materials, specifically 30-50cu hemp-containing cigarette paper, 62-68% mouth section ventilation, and 4500-5200 Pa ternary composite filter rod.

2. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 1, characterized in that: The tobacco leaves with low sugar content and high alkali content in step S1 are composed of 20-36 parts of a first tobacco leaf group, 20-26 parts of a second tobacco leaf group, 20-34 parts of a third tobacco leaf group, 6-16 parts of a fourth tobacco leaf group and 2-6 parts of a fifth tobacco leaf group in parts by weight; the low-tar high-aroma flakes are blended based on the total amount of the above tobacco leaf raw materials, with 15%-20% of the low-tar high-aroma flakes blended.

3. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 2, characterized in that: The first tobacco leaf group has a sugar-alkali ratio of 4-7, and an alkali content of not less than 3.0%, and comes from more than one imported tobacco leaf; the second tobacco leaf group has a sugar-alkali ratio of 4-10, and an alkali content of not less than 2.8%, and comes from Yunnan tobacco leaves; the third tobacco leaf group has a sugar-alkali ratio of 4-10, and an alkali content of not less than 2.8%, and comes from Henan tobacco leaves; the fourth tobacco leaf group has a sugar-alkali ratio of 4-9, and an alkali content of not less than 2.9%, and comes from Hunan tobacco leaves; the fifth tobacco leaf group has a sugar-alkali ratio of 8-13, and an alkali content of not less than 2.4%, and comes from Guizhou tobacco leaves.

4. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 1, characterized in that: The preparation process of the low-coke high-fragrance slice is as follows: The raw materials of tobacco leaves and tobacco stems in a weight ratio of 3-5:7-5 are soaked in water, pulped, filtered, and the insoluble matter is pressed into a sheet base, the extract is treated with alcohol precipitation, and the flavor enhancement module is added and then evenly coated on the sheet base, sliced, dried, and then shredded; The alcohol precipitation treatment of the extract is to add ethanol to the extract to form an alcohol solution, the concentration of the alcohol solution is controlled between 50% and 80%, stirred and allowed to stand at 0°C to room temperature for 8h to 48h, filtered, and distilled under reduced pressure; The flavoring module comprises one or more components selected from maltol, maple extract, fenugreek extract, Maillard reactant, and tobacco extract, and the added amount of the flavoring module is 0.05%-0.2% of the total mass of the slice.

5. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 1, characterized in that: In step S3, the liquid module is prepared by mixing 2-7 parts of strong-flavor tobacco extract, 2-7 parts of maple extract, 2-5 parts of fenugreek extract, 0.2-0.5 parts of MCP, 0.5-1 parts of ethyl maltol, 2-8 parts of potassium citrate, 0.5-1 parts of fermented fruit extract, 50-60 parts of propylene glycol, and 40-50 parts of water.

6. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 1, characterized in that: In step S3, the flavoring module is composed of one or more flavors selected from tobacco flavor, caramel sweet flavor, baking flavor, nutty flavor, spicy flavor, floral flavor, and fruity flavor plus a humectant.

7. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 1, characterized in that: In step S4, the ternary composite filter rod is composed of a paper filter rod, acetate fiber and a leaf-shaped empty tube.

8. The method for preparing ultra-low tar flue-cured tobacco type slim cigarettes according to claim 7, characterized in that: The length of the ternary composite filter rod is 30-35mm, of which the length of the paper filter rod is 10-20mm, the length of the acetate fiber is 5-10mm, and the length of the leaf-shaped empty tube is 5-10mm.

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