CN109275944B - Static extraction treatment method suitable for tobacco shreds in heating and non-burning state - Google Patents
Static extraction treatment method suitable for tobacco shreds in heating and non-burning state Download PDFInfo
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- CN109275944B CN109275944B CN201811168350.3A CN201811168350A CN109275944B CN 109275944 B CN109275944 B CN 109275944B CN 201811168350 A CN201811168350 A CN 201811168350A CN 109275944 B CN109275944 B CN 109275944B
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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
- A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
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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
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/26—Use of organic solvents for extraction
Abstract
The invention provides a static extraction treatment method suitable for tobacco shreds in a heating and non-burning state, which comprises the following steps: 1) taking tobacco raw materials for standby; 2) placing the tobacco raw material in the step 1) in a supercritical extraction device, and relieving pressure after reaching extraction time at a certain extraction pressure and temperature to enable all extracts to cover the surfaces of cut tobaccos; the extraction temperature is 40-50 ℃, and the extraction time is 2-5 h; the extraction pressure is 25-35MPa, and the separation pressure is 4-8 MPa; 3) putting the cut tobacco processed in the step 2) into an oven, drying and taking out for later use; 4) evenly mixing the cut tobacco obtained in the step 3) with the humectant, and carrying out balance treatment for a period of time.
Description
Technical Field
The invention relates to the field of novel tobacco products, in particular to a static extraction treatment method suitable for tobacco shreds in a heating and non-combustion state.
Background
The research and development of novel tobacco products are one of the most recently determined major items by the national bureau, representative heating non-combustible products in the international market at present are divided into electric heating type products and carbon heating type products, and the novel tobacco products are characterized in that cigarettes are not directly combusted, but smoke is released by heating tobacco materials, so that harmful ingredients generated by high-temperature combustion cracking of tobacco are reduced, and harmful ingredients of mainstream smoke are reduced. The research on the heating section matrix which is one of the key technologies of the novel tobacco products is particularly important, and mainly focuses on solving the problem that the tobacco extract can be rapidly released from the matrix under the low-temperature condition, so that a consumer can achieve the same physiological strength as that of the conventional cigarette during smoking and burning, and less harmful ingredients are released. Foreign tobacco companies have developed technical research for nearly 30 years around new tobacco products, with comprehensive layout and planning in the industry and associated product and technical reserves. At present, the mainstream materials of the heating section of the heating unfired product in the international market are all specially-made reconstituted tobacco leaves, and the traditional tobacco shreds are not used.
The development of smokeless tobacco products is still in the starting stage in China, the core technology is very few, no independently researched smokeless tobacco products exist in the domestic market at present, patent application is concentrated on the aspects of electric heating appliance design and the like, the traditional tobacco shreds are used for heating and non-burning after being subjected to supercritical treatment and have not been reported, and the traditional cigarette is mainly concentrated on harm reduction, tar reduction, aroma enhancement and moisture preservation of traditional cigarettes; secondly, the traditional tobacco shred shape is used for heating and non-burning, and is not reported, and basically takes the improvement of the structure of the tobacco raw material or the preparation of carriers by the tobacco raw materials with different shapes as the main material. The heating effect evaluation and sensory evaluation on the conventional cigarette are found that the conventional cigarette has low smoke concentration and obvious water stain on cigarette paper in a heating and non-combustion state, and sensory evaluation shows that the smoke at the suction end of the filter tip is excessively hot. The process of preparing the tobacco material is particularly important in the heating zone material aspect, and can directly affect the smoke release in a heating non-combustion state. Currently, the design aspects of the heating section materials mainly relate to tobacco raw materials and tobacco extracts, and the most core materials are tobacco (including cut tobacco, tobacco fragments, reconstituted tobacco leaves, tobacco particles, tobacco powder and the like) or key component extracts (such as nicotine, tobacco flavor substances and the like) in the tobacco. The traditional cut tobacco provided by the invention is subjected to a treatment method designed by one or two of supercritical static extraction, supercritical dynamic extraction or water treatment, then glycerin and propylene glycol are added, then the traditional cut tobacco is placed in a humidity balance chamber at a certain temperature for a certain time, and finally the treated cut tobacco is subjected to sample rolling. When the cigarette is used, the processed cigarette can be directly placed in a heating non-combustion appliance for smoking evaluation, compared with untreated tobacco shreds, the tobacco shreds with loose structures and certain water content can better adsorb glycerin and propylene glycol, the tobacco shred balance time is shortened, the smoking smoke concentration is obviously improved in a heating non-combustion state, the smoke scalding and the sour taste are obviously reduced, and the cigarette paper has no obvious water stain in appearance. The method for treating the tobacco shreds in the non-combustible heating state has important significance for domestic research and development of tobacco products which are non-combustible by heating, and simultaneously provides a new idea for the industry in the aspect of research and development of commonness of traditional tobacco shred treatment.
Disclosure of Invention
The invention aims to provide a static extraction treatment method suitable for tobacco shreds in a non-combustible heating state, which is used for solving the problems of small smoke quantity, burning smoke and the like of the traditional cigarette in the prior art when the traditional cigarette is heated and not combusted.
A static extraction treatment method suitable for tobacco shreds in a heating and non-burning state comprises the following steps:
1) taking tobacco raw materials for standby;
2) placing the tobacco raw material in the step 1) in a supercritical extraction device, and relieving pressure after reaching extraction time at a certain extraction pressure and temperature to enable all extracts to cover the surfaces of cut tobaccos; the extraction temperature is 40-50 ℃, and the extraction time is 2-5 h; the extraction pressure is 25-35MPa, and the separation pressure is 4-8 MPa;
3) putting the cut tobacco processed in the step 2) into an oven, drying and taking out for later use;
4) evenly mixing the cut tobacco obtained in the step 3) with the humectant, and carrying out balance treatment for a period of time.
Preferably, the tobacco raw material in the step 1) is traditional cigarette tobacco shreds, and the tobacco raw material comprises one or a mixture of several of tobacco leaves in any production area and grades.
Preferably, the moisture content of the tobacco raw material in the step 1) is 10-20%.
Preferably, the temperature of the oven in the step 3) is 40-100 ℃, and the time is 0.5-3 h.
Preferably, the water content of the cut tobacco obtained in the step 3) is 1-6%.
Preferably, the balancing treatment method in the step 4) is to immediately place the cut tobacco uniformly mixed with the humectant in an environment with the temperature of 20 ℃ and the relative humidity of 40% -60% for balancing for 24-48h to obtain the traditional cut tobacco raw material suitable for being heated and not combusted.
Preferably, the humectant is selected from propylene glycol, glycerol or a mixed solvent of the two solvents, and the content of the humectant is 5-30% of the total amount.
Preferably, the moisture content of the final cut tobacco obtained after the balancing in the step 4) is 11.5% -12.5%.
Another object of the present invention is to provide a cut tobacco produced according to the above processing method suitable for static extraction of cut tobacco in a non-combustible state by heating.
Making the traditional cut tobacco roll obtained by the treatment in the step 4) into a traditional cigarette shape, and directly placing the traditional cut tobacco roll in a heating non-combustible appliance for evaluation.
Compared with the traditional untreated tobacco shred added with the humectant, the traditional treated tobacco shred can be applied to a heating non-combustion device, and has the advantages of fast smoke release, obviously improved smoke concentration, obviously improved sensory quality, obviously reduced smoke scalding and sourness and no obvious water stain on the appearance of the cigarette paper under the condition that the heating temperature is lower than 250 ℃.
By adopting the technical scheme, the invention has the following beneficial effects:
the invention has the beneficial effects that:
the heating effect evaluation and the sensory evaluation of the conventional cigarette are found that the conventional cigarette has low smoke concentration and obvious water stain in cigarette paper when being heated and not combusted, and the sensory evaluation shows that the smoke at the suction end of the filter tip is excessively hot and is obvious along with sour taste. The traditional tobacco shreds provided by the invention are firstly subjected to supercritical static extraction treatment, and after the static extraction of the tobacco shreds is finished under a certain extraction time, the extraction kettle is decompressed to obtain the treated tobacco shreds. And (3) putting the processed tobacco shreds into an oven for moisture treatment, adding glycerol and propylene glycol, then placing the tobacco shreds in a constant temperature and humidity room for a certain time, and finally rolling the processed tobacco shreds into samples. Compared with untreated tobacco shreds, the tobacco shreds after supercritical extraction can better adsorb glycerin and propylene glycol, and the concentration of smoke gas sucked in a heating and non-burning state is obviously improved, and the scalding and sourness of the smoke gas are obviously reduced.
The method has simple treatment process, can well meet the requirements of the traditional tobacco shred production process at present, can directly carry out amplification batch production, and has good industrial application prospect.
Detailed Description
The present invention is further described in detail by the following examples, which are not intended to limit the present invention.
Comparative example
(1) Taking 30g of unprocessed traditional tobacco shreds with the water content of 12%, then adding 4.5g of propylene glycol and glycerol mixture, and uniformly mixing for later use;
(2) the mixture in the step (1) is placed in an environment with the temperature of 20 ℃ and the relative humidity of 60% for balancing for 48 hours, and the traditional tobacco shred raw material suitable for being heated and not combusted is obtained;
(3) making the balanced tobacco shred roll into a traditional cigarette, and placing the traditional cigarette in a heating non-combustion appliance for evaluation;
(4) the smoking evaluation result shows that the traditional tobacco shreds are only discharged from the No. 4 th port in a heating and non-burning state, the smoke concentration is low, the smoke is hot, the cigarette paper has obvious water stain, and the smoking evaluation requirement is difficult to meet.
Example 1
(1) Supercritical extraction treatment: performing supercritical extraction on traditional tobacco shreds with water content of 12%, keeping the extraction temperature at 50 deg.C and the extraction pressure at 35MPa constant, closing the inlet and outlet of the extraction kettle, standing for extraction, releasing pressure after 3 hr to make all extracts cover the tobacco shreds, and taking out;
(2) putting the statically extracted tobacco shreds into a drying oven, and drying for 1h at 100 ℃ until the water content is 1% for later use;
(3) taking 30g of cut tobacco treated by the oven, adding 4.5g of propylene glycol and glycerol mixture, immediately placing in an environment with the temperature of 20 ℃ and the relative humidity of 60% for balancing for 48h to obtain a traditional cut tobacco raw material suitable for being heated and not combusted;
(4) making the treated traditional cut tobacco in the step (3) into a traditional cigarette shape, and directly placing the traditional cigarette in a heating non-combustible burning appliance for evaluation;
(5) the smoking result shows that the treated traditional tobacco shreds can give out the cigarettes immediately after being eaten, the smoke concentration is high, the smoke is not hot, no water stain or acid taste exists on the cigarette paper, and the normal smoking can be carried out.
Example 2
(1) Supercritical extraction treatment: performing supercritical extraction on traditional tobacco shreds with water content of 12%, keeping the extraction temperature at 40 deg.C and the extraction pressure at 25MPa constant, closing the inlet and outlet of the extraction kettle, standing for extraction, releasing pressure after 2 hr to make all extracts cover the tobacco shreds, and taking out;
(2) putting the statically extracted tobacco shreds into a drying oven, drying for 1h at 90 ℃ until the water content is 2% for later use;
(3) taking 30g of cut tobacco treated by the oven, adding 3.0g of propylene glycol glycerol mixture, immediately placing in an environment with the temperature of 20 ℃ and the relative humidity of 60% for balancing for 48 hours to obtain a traditional cut tobacco raw material suitable for being heated and not combusted;
(4) making the treated traditional cut tobacco in the step (3) into a traditional cigarette shape, and directly placing the traditional cigarette in a heating non-combustible burning appliance for evaluation;
(5) the smoking evaluation result shows that the treated traditional tobacco shreds can give out the cigarettes immediately after the first time, the smoke concentration is medium, the smoke is not hot, no water stain or acid taste exists on the cigarette paper, and the normal smoking evaluation can be carried out.
Example 3
(1) Supercritical extraction treatment: performing supercritical extraction on traditional tobacco shreds with water content of 12%, keeping the extraction temperature at 45 deg.C and the extraction pressure at 20MPa constant, closing the inlet and outlet of the extraction kettle, standing for extraction, releasing pressure after 2 hr to make all extracts cover the tobacco shreds, and taking out;
(2) putting the statically extracted tobacco shreds into a drying oven, and drying for 2 hours at 80 ℃ until the water content is 6% for later use;
(3) taking 30g of cut tobacco treated by the oven, adding 1.5g of propylene glycol glycerol mixture, immediately placing in an environment with the temperature of 20 ℃ and the relative humidity of 60% for balancing for 48h to obtain a traditional cut tobacco raw material suitable for being heated and not combusted;
(4) making the treated traditional cut tobacco in the step (3) into a traditional cigarette shape, and directly placing the traditional cigarette in a heating non-combustible burning appliance for evaluation;
(5) the smoking evaluation result shows that the treated traditional tobacco shreds can give out the cigarettes immediately after the first time, the smoke concentration is medium, the smoke is not hot, no water stain or acid taste exists on the cigarette paper, and the normal smoking evaluation can be carried out.
Example 4
(1) Supercritical extraction treatment: performing supercritical extraction on traditional tobacco shreds with water content of 12%, keeping the extraction temperature at 50 deg.C and the extraction pressure at 30MPa constant, closing the inlet and outlet of the extraction kettle, standing for extraction, releasing pressure after 4 hr to make all extracts cover the tobacco shreds, and taking out;
(2) putting the statically extracted tobacco shreds into a drying oven, drying for 2 hours at 90 ℃ until the water content is 3% for later use;
(3) taking 30g of cut tobacco treated by the oven, adding 9.0g of propylene glycol glycerol mixture, immediately placing in an environment with the temperature of 20 ℃ and the relative humidity of 60% for balancing for 48 hours to obtain a traditional cut tobacco raw material suitable for being heated and not combusted;
(4) making the treated traditional cut tobacco in the step (3) into a traditional cigarette shape, and directly placing the traditional cigarette in a heating non-combustible burning appliance for evaluation;
(5) the smoking result shows that the treated traditional tobacco shreds can give out the cigarettes immediately after being eaten, the smoke concentration is high, the smoke is not hot, no water stain or acid taste exists on the cigarette paper, and the normal smoking can be carried out.
In conclusion, the invention effectively overcomes the defects of the prior art that the traditional cut tobacco is directly applied to heating and non-combustion, and has industrial application prospect. The embodiment is not only the proportion of the tobacco shreds, the humectant and the like mixed according to the mass percentage in the embodiment, but also is suitable for preparing the tobacco shreds, the tobacco extract, the essence and the spice and the like in any proportion.
The static extraction method for tobacco shreds without burning has been described above to help understanding the present invention, but the embodiments of the present invention are not limited by the above examples, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the principle of the present invention are all equivalent substitutions and are intended to be included within the scope of the present invention.
Claims (3)
1. A static extraction treatment method suitable for tobacco shreds in a heating and non-burning state is characterized by comprising the following steps: the method comprises the following steps:
1) taking a tobacco raw material with the moisture content of 10-20% for standby application, wherein the tobacco raw material is one or a mixture of more of traditional cigarette tobacco shreds including tobacco shreds of any production area and grades;
2) placing the tobacco raw material in the step 1) in a supercritical extraction device, and relieving pressure after reaching extraction time at a certain extraction pressure and temperature to enable all extracts to cover the surfaces of cut tobaccos; the extraction temperature is 40-50 ℃, and the extraction time is 2-5 h; the extraction pressure is 25-35MPa, and the separation pressure is 4-8 MPa;
3) putting the cut tobacco processed in the step 2) into an oven, drying, taking out and using for later use, wherein the water content of the cut tobacco is controlled to be 1% -6%, the temperature of the oven is 40-100 ℃, and the time is 0.5-3 h;
4) uniformly mixing the cut tobacco obtained in the step 3) with the humectant, and immediately placing the mixture in an environment with the temperature of 20 ℃ and the relative humidity of 40-60% for balancing for 24-48h to obtain the traditional cut tobacco raw material suitable for being heated and not combusted.
2. The static extraction treatment method for tobacco shreds in a non-combustible state by heating according to claim 1, characterized in that: the moisture content of the final cut tobacco obtained after the balancing in the step 4) is 11.5-12.5%.
3. The tobacco shred prepared by the static extraction treatment method suitable for the tobacco shred in a non-burning heating state according to claim 1.
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2018
- 2018-10-08 CN CN201811168350.3A patent/CN109275944B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1438843A (en) * | 2000-03-10 | 2003-08-27 | 英美烟草(投资)有限公司 | Tobacco treatment |
| CN1302568A (en) * | 2001-02-26 | 2001-07-11 | 王振锟 | Process and equipment for rectifying tobacco by supercritical multi-element fluid extraction |
| WO2007138380A2 (en) * | 2005-12-30 | 2007-12-06 | Philip Morris Products S.A. | Cigarette filters |
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