CN107981405B

CN107981405B - Preparation method and application of cigarette without burning by heating

Info

Publication number: CN107981405B
Application number: CN201711312963.5A
Authority: CN
Inventors: 罗诚浩; 陈义坤; 姚元军; 刘志昌; 刘磊; 刘华臣; 刘冰; 黄龙; 柯炜昌
Original assignee: China Tobacco Hubei Industrial LLC
Current assignee: China Tobacco Hubei Industrial LLC
Priority date: 2017-12-12
Filing date: 2017-12-12
Publication date: 2020-03-10
Anticipated expiration: 2037-12-12
Also published as: CN107981405A

Abstract

A method for preparing a cigarette without burning in heating and its application, adopt the new process of embossing roll, make the heating with certain thickness not burn the tobacco leaf surface of the remaking become uneven, increase the superficial area, strengthen the atomization effect, increase the surface friction, and use the compound aluminium foil cigarette paper of the emboss, when making the rolling up and connecting the machine to roll up and connect and start the car in the later stage, the remaking tobacco leaf and rolling up and connecting the aluminium foil pattern surface of the material compound aluminium foil cigarette paper, the friction is strengthened by a wide margin, easy to process, reduce the parking frequency of the apparatus, make the production go on continuously, raise the production efficiency, reduce material cost and production cost; the low-temperature cigarette has shorter tobacco shred sections, the friction is increased, the tobacco shred falling is reduced, and the problems that the friction force between the smooth surface of the cigarette making leaf which is not combusted after heating and the non-embossed aluminum foil paper of the wrapping material is small, the slipping is serious, the cigarette paper is not moved, the equipment is frequently stopped, and the production efficiency is influenced are overcome; and the low-temperature tobacco shreds of the low-temperature cigarette have short tobacco shred sections and small friction force and are easy to fall off.

Description

Preparation method and application of cigarette without burning by heating

Technical Field

The invention relates to the field of heating non-combustion novel tobacco, in particular to a preparation method and application of a heating non-combustion cigarette.

Background

The reconstituted tobacco which is not burnt by heating is a functional reconstituted tobacco which takes tobacco components as a main body, loads a large amount of atomizing agent, and releases the atomizing agent by high-temperature heating when in use to form a smoke effect. The non-burning reconstituted tobacco is heated by an external heating element, so that the atomizing agent, the fragrance components of tobacco and spices in the reconstituted tobacco cigarette generate smoke by heating instead of burning, and harmful components generated by burning and thermal cracking in the traditional cigarette are reduced.

When the reconstituted tobacco is processed and rolled into cigarette cigarettes by heating and non-burning, the friction force between the surface of the reconstituted tobacco which is not heated and burnt and the aluminum foil surface of the wrapping material aluminum foil paper is small, the cigarette is seriously slipped, the cigarette paper is still, so that the equipment is frequently stopped, and the production efficiency is influenced; and the low-temperature cigarette has the defects of short tobacco shred section, small friction force, easy falling of the tobacco shred and the like.

Disclosure of Invention

According to the defects and the defects, the invention aims to provide a preparation method of a heating non-combustion cigarette and application thereof.A compression roller process is carried out at the last step of a rolling process, one of two compression rollers adopts an embossing roller to emboss the heating non-combustion reconstituted tobacco leaves by a rolling method, so that the surface of the heating non-combustion reconstituted tobacco leaves with certain thickness is uneven, the surface area is increased, the atomization effect is enhanced, the surface friction is increased, and the embossing composite aluminum foil cigarette paper is adopted for rolling connection, so that the friction between a sheet and the aluminum foil surface of the aluminum foil cigarette paper is greatly enhanced when the rolling connection of a rolling connection machine is started in the later period, the processing is easy, the equipment parking frequency is reduced, the production can be continuously carried out, the production efficiency is improved, and the material cost and the production cost; the low-temperature cigarette has shorter tobacco shred sections, the friction is increased, the tobacco shred falling is reduced, and the problems that the friction force between the smooth surface of the cigarette making leaf which is not combusted after heating and the non-embossed aluminum foil paper of the wrapping material is small, the slipping is serious, the cigarette paper is not moved, the equipment is frequently stopped, and the production efficiency is influenced are overcome; and the low-temperature tobacco shreds of the low-temperature cigarette have short tobacco shred sections and small friction force and are easy to fall off.

The invention is realized by the following technical scheme:

a preparation method of a cigarette without burning by heating comprises the following steps:

(1) preparing raw materials: preparing raw materials according to mass percentage: 50-70% of tobacco raw material, 10-25% of atomizing agent, 3-10% of solid adhesive, 1-10% of tobacco additive, 1-10% of fiber and 15-35% of warm water;

(2) mixing and crushing dry materials: putting the tobacco raw material, the solid adhesive and the solid additive calcium salt for the tobacco into a grinder according to a certain proportion, grinding to 40-300 meshes, and then grinding at a low temperature and a high speed to uniformly mix;

(3) uniformly mixing and dispersing wet materials: pouring the fibers and warm water into a material barrel in proportion, stirring at a high speed, simultaneously, assisting to defiber and disperse the fibers more uniformly by adopting ultrasonic cavitation, adding the atomizing agent with the mass ratio in the step 1), continuing to stir at a high speed by ultrasonic assistance to disperse the fibers and the atomizing agent uniformly, and simultaneously slowly adding the wet material and the tobacco flavor into the uniformly mixed dry material powder in the step 2), and stirring uniformly at a high speed;

(4) embossing and rolling: rolling 3-9 times to obtain reconstituted tobacco, and when the last compression roller process is carried out, carrying out embossing rolling on the reconstituted tobacco by adopting an embossing compression roller, and then heating and drying to obtain the roller-pressing method heating non-combustible embossed reconstituted tobacco;

(5) rolling and packaging: the rolling packaging of the heating non-combustion embossed reconstituted tobacco by the rolling method is carried out according to the cigarette process specification, and the embossed composite aluminum foil cigarette paper, the cigarette filter stick and the like are adopted for rolling packaging, so that the heating non-combustion cigarette with the production efficiency improved is obtained.

Further, the tobacco raw material is one or a mixture of tobacco leaves and tobacco stems.

Further, the additive for the cigarette is a cigarette flavor and a calcium salt, and the calcium salt is one or a mixture of calcium carbonate, calcium lactate, calcium citrate and calcium tartrate.

Further, the low-temperature crushing is carried out at the temperature of 0-4 ℃ and the mesh size of 40-300.

Further, the solid adhesive is one or a mixture of more of sodium alginate, potassium alginate, CMC (carboxymethyl cellulose), PAC (polyanionic cellulose), polyvinyl alcohol, casein glue, rosin, dextrin, chitosan, sodium glycerophosphate and the like.

Further, the fiber is one or a mixture of wood pulp, tobacco stalk fiber, bagasse pulp, bamboo pulp, coconut fiber and the like.

Further, the temperature of the warm water is 30-60 ℃.

Further, the atomizing agent is one or a mixture of glycerol, propylene glycol and ethylene glycol.

Further, the high-speed stirring speed is 300-1200 r/min.

Furthermore, the frequency of the ultrasonic wave is 20-130 KHz.

Further, the thickness of the reconstituted tobacco which is not burnt during heating is 0.21-0.30 mm, the elongation at break is 1.0-1.6%, and the tensile strength is 300-450N/m.

Furthermore, the embossed composite aluminum foil cigarette paper is a twill or disordered embossed composite aluminum foil cigarette paper, wherein the thickness of the embossed aluminum foil is 1-19 mu m, and the thickness of the cigarette paper is 20-200 mu m.

The cigarette which is prepared by the method and is not burnt can be applied to electric heating or carbon heating low-temperature cigarettes.

According to the heating non-combustion cigarette with the improved production efficiency, the surface of the reconstituted tobacco is uneven, the atomization effect is enhanced, the surface friction force is increased, the embossed composite aluminum foil cigarette paper is used as a rolling material, so that the friction between the sheet and the embossed aluminum foil surface of the composite aluminum foil cigarette paper is greatly enhanced when the rolling machine is started in the rolling process in the later period, the processing is easy, the equipment parking frequency is reduced, the production can be continuously carried out, the production efficiency is improved, and the material cost and the production cost are reduced; the tobacco shred sections of the low-temperature cigarette are shorter, the friction is increased, the tobacco shred dropping at the end part of the cigarette is reduced, and the problems that the friction force between the smooth surface of the cigarette leaves which are not combusted after heating and the non-embossed aluminum foil paper of the wrapping material is smaller, the slippage is serious, the cigarette paper is not moved, the equipment is frequently stopped, and the production efficiency is influenced are overcome; and the low-temperature cigarette has the defects of short tobacco shred section, small friction force, easy falling of the low-temperature tobacco shred at the end part and the like.

The invention has the beneficial effects that:

(1) the roller pressing method is adopted to heat the non-burning reconstituted tobacco, and the non-burning reconstituted tobacco is applied to low-temperature cigarettes such as electric heating and carbon heating, compared with the traditional cigarettes, the consumption of the tobacco raw materials of each cigarette is reduced by 20-50%, the cost of the tobacco raw materials is reduced, and the tobacco raw materials and the tobacco flavor are heated and volatilized without burning and thermal cracking, so that the harm of smoke is reduced.

(2) The process is characterized in that the tobacco raw material, the solid adhesive and the solid calcium salt are mixed and crushed into fine powder (40-300 meshes), so that the tobacco raw material, the adhesive and the solid calcium salt (comprising one or more of calcium carbonate, calcium lactate, calcium citrate, calcium tartrate and the like) are uniformly dispersed and mixed, the specific surface area is increased, a new microporous structure is generated, the absorbability of the tobacco raw material to an atomizing agent is effectively improved, the looseness and the thickness of reconstituted tobacco are improved, and the smoking comfort level is increased; the method comprises the steps of pre-mixing and defibering fibers and water, mixing the fibers with an atomizing agent, stirring at a high speed to achieve a homogenizing effect, fully swelling the fibers in a water-atomizing agent system, effectively interweaving the fibers, slowly pouring wet materials of the fibers, the water and the atomizing agent into fine powder of tobacco, adhesive and calcium salt, uniformly stirring at a high speed, completely dispersing and mixing the fine powder of the tobacco, the adhesive and the fibers, and well bonding the fibers and the surrounding adhesive, so that the reconstituted tobacco has certain strength, the crumbling rate is reduced, the processing resistance is enhanced, the time of mixing and stirring procedures is shortened, and the method overcomes the defects that when the reconstituted tobacco is heated and does not burn by a common rolling method process, the fibers are firstly mixed with tobacco powder after being defibered in water, then are mixed with the rest materials, the fibers cannot be uniformly dispersed and easily agglomerated, the manufactured reconstituted tobacco has the defects of extremely uneven fibers, atomizing agents and tobacco;

(3) the solid adhesive is sodium alginate, potassium alginate, CMC (carboxymethyl cellulose), PAC (polyanionic cellulose), polyvinyl alcohol, casein glue, rosin, dextrin, chitosan and sodium glycerophosphate, can help the fibers and the tobacco raw materials to be tightly combined, can improve the tensile strength of the reconstituted tobacco which is not burnt when being heated, and has synergistic effect and adhesion increasing effect when being mixed with chitosan-sodium glycerophosphate and the like; the natural fiber has the functions of increasing the strength of the reconstituted tobacco and improving the processing resistance;

(4) according to the method, the fibers and the tobacco are dispersed more uniformly by rolling for 3-9 times, the density, the strength and the thickness of the reconstituted tobacco which is not burnt by heating are increased, the tensile strength and the elongation at break of the reconstituted tobacco are improved, and in the last pressing roller process, the reconstituted tobacco is embossed and rolled by adopting an embossing pressing roller and then heated and dried to obtain the reconstituted tobacco which is not burnt by heating and is heated by a rolling method, the surface of the reconstituted tobacco is uneven, the atomization effect is enhanced, and the surface friction force is increased;

(5) the twill or disordered embossed composite aluminum foil cigarette paper, the cigarette filter stick and the like are adopted for carrying out rolling packaging, so that when the rolling machine is used for rolling and starting at the later stage, the friction between the sheet and the patterned aluminum foil surface of the embossed composite aluminum foil cigarette paper is greatly enhanced, the processing is easy, the equipment parking frequency is reduced, the production can be continuously carried out, the production efficiency is improved, and the material cost and the production cost are reduced; the tobacco shred sections of the low-temperature cigarette are shorter, the friction is increased, the tobacco shred dropping at the end part of the cigarette is reduced, and the problems that the friction force between the smooth surface of the cigarette leaves which are not combusted after heating and the non-embossed aluminum foil paper of the wrapping material is smaller, the slippage is serious, the cigarette paper is not moved, the equipment is frequently stopped, and the production efficiency is influenced are overcome; and the tobacco shred section of the low-temperature cigarette is shorter, the friction force is small, and the tobacco shred at the end part of the low-temperature cigarette is easy to fall off.

Compared with the authorized composite flame-retardant electric heating cigarette paper and the preparation method thereof, the embossed composite aluminum foil cigarette paper is thinner, wherein the thickness of the embossed aluminum foil is 1-19 microns, and the thickness of the cigarette paper is 20-200 microns, compared with the authorized composite flame-retardant electric heating cigarette paper and the preparation method thereof, the embossed composite aluminum foil cigarette paper is characterized in that the thickness of the metal foil is 20-60 microns, and the thickness of the cigarette paper is 40-100 microns, in comparison, in the composite aluminum foil cigarette paper, the thickness of the aluminum foil is obviously reduced, the thinner the aluminum foil is, the less aluminum foil is used in the unit area of the composite aluminum foil paper, the lower the cost of the aluminum foil cigarette paper is, the softer the more the composite aluminum foil cigarette paper is, the smaller the abrasion to a cutter used for slitting is in production, the more the lapping position of a cigarette is smooth, and the thicker aluminum foil.

The method has the advantages of simple and mild process conditions, high production efficiency and wide industrial application prospect in novel tobacco products heated by electric heating and carbon heating, and can realize the production of the reconstituted tobacco cigarettes which are not combusted by heating.

Drawings

FIG. 1 is a schematic view of a heated non-burning cigarette of the present invention;

FIG. 2 is a schematic view showing measurement of the amount of dropped tobacco at the end of a cigarette which is not burned by heating;

FIG. 3 is a total ion flow chromatogram of volatile components of 65 μm PDMS/DVB solid phase microextraction roller-pressed reconstituted tobacco heated without burning.

Detailed Description

The present invention will be described in detail with reference to specific examples.

Example 1

A preparation method of a cigarette without burning by heating comprises the following technical steps:

(1) preparing raw materials: preparing raw materials according to mass percentage: 50% of tobacco raw material, 25% of atomizing agent glycerol, 5% of solid adhesive (sodium alginate, potassium alginate, CMC, PAC), 5% of tobacco additive (3% of solid calcium salt, 2% of tobacco flavor), 2% of fiber (wood fiber and coconut fiber according to the mass ratio of 4:1) and 18% of warm water at 45 ℃;

(2) mixing and crushing dry materials: putting tobacco raw materials, solid adhesive and solid tobacco additive (calcium carbonate and calcium lactate, the mass percentage is 2% and 1%) into a low-temperature pulverizer in proportion, pulverizing to 200 meshes at 2 ℃, and mixing uniformly;

(3) uniformly mixing and dispersing wet materials: pouring fibers and 45 ℃ warm water into a material barrel in proportion, stirring at a high speed of 400r/min, simultaneously, assisting by 50KHz ultrasonic cavitation to defiber and disperse the fibers more uniformly, adding the atomizing agent with the mass ratio in the step 1), continuing to stir at a high speed of 400r/min by the aid of 50KHz ultrasonic to disperse the fibers and the atomizing agent uniformly, and simultaneously slowly adding wet materials and tobacco flavor into the uniformly mixed dry material powder in the step 2), and uniformly stirring at a high speed of 400 r/min;

(4) embossing and rolling: the reconstituted tobacco is prepared by tanning and rolling for 5 times, and in the rolling procedure of the 6 th time, embossing and rolling are carried out on the reconstituted tobacco by adopting an embossing roller, and then heating and drying are carried out at 70 ℃ to obtain the embossed reconstituted tobacco which is heated and not combusted by a rolling method;

(5) rolling and packaging: the rolling packaging of the heating non-combustion embossed reconstituted tobacco by the rolling method is carried out according to the cigarette process specification, and the rolling packaging is carried out by adopting the twill embossed composite aluminum foil cigarette paper (wherein the thickness of the embossed aluminum foil is 10 mu m, and the thickness of the cigarette paper is 100 mu m), the cigarette filter stick and the like, namely the heating non-combustion cigarette for improving the production efficiency, disclosed by the invention, as shown in figure 1.

The heating non-combustion reconstituted tobacco has good strength, strong friction between the reconstituted tobacco and the aluminum foil during the rolling and connecting processing, good process continuity and high production efficiency, the manufactured low-temperature cigarette is heated in an electric heater or used as carbon to heat the low-temperature cigarette, the smoke is uniformly released, the smoke quantity is large, the satisfaction is strong, the tobacco fragrance is realized, and the simulated smoking sensory effect is better.

Example 2

(1) preparing raw materials: preparing raw materials according to mass percentage: 65% of tobacco raw material, 11% of atomizing agent (6%, 3% and 2% of glycerol, propylene glycol and ethylene glycol respectively in mass percent), 4% of solid adhesive, 3.5% of tobacco additive (3% of solid calcium salt and 0.5% of tobacco flavor mint), 1.5% of fiber (1% and 0.5% of tobacco stem fiber and bagasse pulp respectively in mass percent), and 15% of warm water at 55 ℃;

(2) mixing and crushing dry materials: putting the tobacco raw material, the solid adhesive and the solid additive for cigarettes (1 percent of calcium carbonate, calcium citrate and calcium tartrate respectively by mass percent) into a liquid nitrogen low-temperature pulverizer according to a proportion, pulverizing to 240 meshes at 3 ℃, and then pulverizing at a low temperature and a high speed to uniformly mix;

(3) uniformly mixing and dispersing wet materials: pouring the fibers and warm water into a material barrel in proportion, stirring at a high speed of 500r/min, simultaneously, assisting to defiber and disperse the fibers more uniformly by adopting 80KHz ultrasonic cavitation, then adding the atomizing agent with the mass ratio in the step 1), continuing to stir at a high speed of 500r/min by using 80KHz ultrasonic assistance to disperse the fibers and the atomizing agent uniformly, and simultaneously slowly adding the wet material and the tobacco flavor into the uniformly mixed dry material powder in the step 2), and uniformly stirring at a high speed of 500 r/min;

(4) embossing and rolling: the reconstituted tobacco is prepared by 6 times of tanning and rolling, and in the 7 th rolling procedure, the reconstituted tobacco is embossed and rolled by an embossing roller and then heated and dried at 60 ℃ to obtain the embossed reconstituted tobacco which is heated and not combusted by a rolling method;

(5) rolling and packaging: the rolling packaging of the heating non-combustion embossed reconstituted tobacco by the rolling method is carried out according to the cigarette process specification, and the disordered embossed composite aluminum foil cigarette paper (wherein the thickness of the embossed aluminum foil is 8 mu m, and the thickness of the cigarette paper is 120 mu m), a cigarette filter stick and the like are adopted for rolling packaging, so that the heating non-combustion cigarette with the production efficiency improved is obtained.

The heating non-combustible reconstituted tobacco has good strength, strong friction between the reconstituted tobacco and aluminum foil during rolling and connecting processing, good process continuity and high production efficiency, the manufactured low-temperature cigarette is heated in an electric heater or used as carbon to heat the low-temperature cigarette, the smoke is uniformly released, the smoke amount is large, the satisfaction is strong, the cigarette has the fresh and cool feeling of tobacco fragrance and mint, the throat is comfortable, and the simulated smoking sensory effect is better.

Example 3

(1) preparing raw materials: preparing raw materials according to mass percentage: 70% of tobacco raw material, 10% of atomizing agent (8% and 2% of glycerol and propylene glycol respectively), 3% of solid adhesive (rosin, chitosan and sodium glycerophosphate are in equal mass ratio), 1% of tobacco additive (0.5% of calcium carbonate and 0.5% of tobacco extract), 1% of fiber (wood pulp, bamboo pulp and the like), and 15% of warm water at 60 ℃;

(2) mixing and crushing dry materials: proportionally placing tobacco raw materials, solid adhesive and solid additive calcium salt for cigarettes into a liquid nitrogen low-temperature pulverizer, pulverizing at 4 ℃ to 300 meshes, and then pulverizing at low temperature and high speed to uniformly mix;

(3) uniformly mixing and dispersing wet materials: pouring the fibers and warm water into a material barrel in proportion, stirring at a high speed of 600r/min, simultaneously, assisting to defiber and disperse the fibers more uniformly by adopting 120KHz ultrasonic cavitation, then adding the atomizing agent with the mass ratio in the step 1), continuing to stir at a high speed of 600r/min by using 120KHz ultrasonic assistance to disperse the fibers and the atomizing agent uniformly, and simultaneously slowly adding the wet material and the tobacco flavor into the uniformly mixed dry material powder in the step 2), and uniformly stirring at a high speed of 600 r/min;

(4) embossing and rolling: the reconstituted tobacco is prepared by tanning and rolling for 8 times, and when the 9 th compression roller process is carried out, the reconstituted tobacco is embossed and rolled by adopting an embossing compression roller and then is heated and dried at 65 ℃ to obtain the embossed reconstituted tobacco which is heated and not combusted by a rolling method;

(5) rolling and packaging: the rolling packaging of the heating non-combustion embossed reconstituted tobacco is carried out according to the cigarette process specification, and disordered tobacco shred rolling packaging is carried out by adopting embossed composite aluminum foil cigarette paper with staggered patterns (wherein the thickness of the embossed aluminum foil is 6 mu m, and the thickness of the cigarette paper is 80 mu m), cigarette filter rods and the like, thus obtaining the heating non-combustion cigarette with improved production efficiency.

The heating non-combustible reconstituted tobacco has good strength, strong friction between the reconstituted tobacco and the aluminum foil during the rolling and connecting processing, good process continuity and high production efficiency, the manufactured low-temperature cigarette is heated in an electric heater or used as carbon to heat the low-temperature cigarette, the smoke is uniformly released, the smoke quantity is large, the satisfaction is strong, the smoke concentration is higher, the tobacco fragrance is provided, the throat is comfortable, and the simulated smoking sensory effect is better.

Test example 1: application effect contrast

Comparing the reconstituted tobacco leaves which are not burned by the rolling method and prepared in the examples 1 to 3 with the reconstituted tobacco leaves which are not burned by the heating method and prepared by the conventional rolling process, the results show that: the roller pressing method provided by the invention has the advantages that the roller pressing method heats the non-burning reconstituted tobacco, the content of the atomizing agent is higher, the distribution is uniform, the surface is not adhered, the fiber content is improved, the grinding is uniform in the reconstituted tobacco, the strength of the reconstituted tobacco is improved, the processing resistance is good, the strength improvement rate is up to 35.71%, and the production efficiency is improved by more than 25% compared with the contrast; the smoking is smoother, the satisfaction is strong, the tobacco fragrance is achieved, and the simulated smoking sensory effect is better; the cut tobacco quantity of the cigarette end is reduced by 20-40%.

(1) The invention discloses strength detection of reconstituted tobacco of a heating non-burning cigarette

The strength of the rolled reconstituted tobacco with high atomization amount is an important index.

The detection method refers to the determination of the tensile strength of GB/T12914-2008 paper and paperboard.

The detection principle is as follows: the tensile strength of a specimen of a predetermined size was measured by stretching the specimen to break under constant-speed stretching. If desired, the elongation of the specimen can be measured and its maximum tensile strength recorded.

The instrument comprises the following steps: TTM-30 computer tensile tester.

Clamping a head: two, in order to clamp a sample of a given width, each clamp should firmly clamp the full width of the sample along a straight line without damaging or sliding the sample. The chuck should be equipped with means for adjusting the clamping force.

The testing steps are as follows:

1. the sheet was cut into 15mm wide and 200mm long.

2. Measurements were made according to GB/T12914.

3. And test samples which are not firmly adhered, fall off and are not integrally broken are removed from the measurement results.

The test results are given in the following table:

TABLE 1 strength of non-burning reconstituted tobacco heated by rolling method

Sample (I)	Gram weight g/m²	Tensile strength N/m	Elongation at break%
				Example 1	184	312	1.1
Example 2	201	328	1.2
				Example 3	220	380	1.3
Control	160	280	0.8

(2) Sensory evaluation of the invention for cigarette without burning when heated

The sensory quality of the non-combustible and heated cigarette is compared and evaluated with the control sample, the control sample cigarette is prepared by heating the non-combustible reconstituted tobacco and the smooth composite aluminum foil cigarette paper by the common rolling process, and the result is shown in table 2.

TABLE 2 sensory evaluation of the heated non-burning cigarettes of the invention

The result shows that the cigarette is heated and does not burn, the smoke amount is large, the release is uniform, the satisfaction is strong, the cigarette has the fragrance of the tobacco, and the sensory effect of simulated smoking is better.

(3) The invention tests and contrasts the drop of the tobacco shreds at the end part of the cigarette without burning when being heated

The existing method for testing the cut tobacco falling from the end part of the cigarette is adopted in ISO3550-1 part 1 of determination of the cut tobacco falling from the end part of the cigarette: the rotating cage method measures the tobacco shreds falling from the end parts of the heated non-combustible cigarettes.

The instrument comprises the following steps: YDZ-II type cigarette end tobacco shred loss measuring instrument (vibration method), E44 type cigarette end tobacco shred loss measuring instrument (rotating cage method).

The method comprises the following steps: according to the requirements of ISO3402, the sample is balanced in the environment of (22+1) DEG C and RH (60+ 3)% for more than 48h and within 10 d.

Setting parameters: the rotation speed of the ISO3550-2 measuring instrument is 60rpm, and the rotation time is 2 min.

Measuring the tobacco shreds falling from the end parts of the cigarettes: the test was repeated 40 times for each cigarette sample using ISO3550-2, and the test results are shown in Table 3 and FIG. 2.

TABLE 3 determination of the amount of tobacco dropped from the end of a heated non-burning cigarette

Sample (I)	Cut amount (mg/cig) of cigarette ends
		Example 1	8
Example 2	7
		Example 3	6
Control	10

As shown in table 3 and fig. 2, the end cut loss of the cigarette according to the present invention was reduced by 20 to 40% as compared with the control.

Test example 2: the invention improves the volatile chemical components HS-SPME-GC/MS analysis of the reconstituted tobacco leaves which are not burnt during heating in the rolling process

The volatile aroma components of the reconstituted tobacco which is prepared by the improved rolling method process and is heated and not burnt are detected and analyzed by using a gas phase mass spectrum by using a solid phase micro-extraction head PDMS/DVB (polydivinylbenzene) with the diameter of 65 mu m.

1 materials and methods

1.1 drugs and instruments

The invention improves the reconstituted tobacco which is prepared by the rolling process and is heated without burning;

digital display constant temperature water bath AHYQ HH-6: australian instruments Inc. of Changzhou; balance CP 2202S-OCE: sartorius AG Germany; a manual SPME sample introduction handle, a manual extraction fiber head (65 μm PDMS/DVB polydivinylbenzene, 15mL special headspace extraction sample bottle: Supelco, USA; TRACE GC Ultra-DSQ II gas chromatography/mass spectrometry (GC/MS) combined instrument: thermoelectricity technology, Inc., USA).

1.2 methods

1.2.1 SPME Condition

Weighing 1g of a heating non-combustible reconstituted tobacco sample prepared by the improved rolling process, shearing the sample into fragments with the diameter of 0.2cm, placing the fragments into a 15mL special headspace extraction sample bottle, inserting an aged extraction head, pre-balancing for 10min at a certain temperature, and extracting for a certain time for later use. Aging of an extraction head: aging at 250 deg.C for 30 min.

1.2.2 GC/MS analysis conditions

1.2.1.1 chromatographic conditions

The initial temperature of the column is 50 ℃, the column is kept for 2min, the temperature is increased to 180 ℃ at the speed of 8 ℃/min, the column is kept for 1min, and then the temperature is increased to 280 ℃ at the speed of 18 ℃/min, and the column is kept for 30 min; the carrier gas is helium (He, purity 99.99%), constant current mode, flow rate is 1.0 mL/min; split sample introduction mode, split ratio 1: 10, no solvent delay; the injection port temperature was 250 ℃.

1.2.1.2 Mass Spectrometry conditions

An ionization mode: an EI source; electron energy 70 eV; multiplier voltage: 1.2 kV; ion source temperature: 230 ℃; the temperature of the four-level bar is 150 ℃; interface temperature: a transmission line is 280 ℃ at 280 ℃; scanning range: 33m/z to 350 m/z. The NIST standard spectrum library is used for retrieval and analysis, and the relative percentage content of the compound is calculated according to a peak area normalization method.

2 results and analysis

The method is characterized in that the heating non-combustion reconstituted tobacco prepared by the improved rolling process is taken as a research object, an extraction head 65-micron PDMS/DVB is adopted to carry out HS-SPME-GC-MS detection and analysis, a total ion current chromatogram is shown in figure 3, and volatile chemical components are mainly concentrated in 14-25 min and are detailed in table 4. TABLE 4 HS-SPME-GC/MS of volatile components of reconstituted tobacco leaves without burning prepared by the improved rolling process of the present invention

Analysis of

As shown in the table 4, 84 volatile components are identified by headspace-solid phase microextraction-gas chromatography mass spectrometry detection of the heated non-burning reconstituted tobacco prepared by the improved rolling process, and the total relative percentage content is 97.91%, wherein the volatile components comprise 10 alkenes (64.15%), 19 esters (9.41%), 19 ketones (7.45%), 11 alcohols (1.84%), 3 acids (0.45%), 3 aldehydes (0.34%), 2 alkanes (0.21%) and 19 other heterocyclic compounds. According to a single component, the highest relative percentage content is neophytadiene (63.74%), which is C20 polyisoprenoid, has the highest content in neutral volatile matters of tobacco and is an important aroma substance in tobacco leaves, and the component is formed by degrading chlorophyll contained in the tobacco leaves to form leaf alcohol in the process of maturation and modulation and further dehydrating the leaf alcohol. The new phytodiene has fresh fragrance and less irritation, while the chlorophyll and phytol have green miscellaneous gas, and the green miscellaneous gas of the tobacco leaves is eliminated along with the conversion of a large amount of the chlorophyll and phytol into the new phytodiene in the preparation process, so that the fresh fragrance is generated. The new phytodiene can directly enter smoke when the tobacco is burnt, and has the effects of reducing irritation, alcohol and smoke. The neophytadiene is used as a carrier for collecting aroma substances in the smoke aerosol, has the capacity of carrying volatile aroma substances and aroma components in the tobacco leaves into smoke, and is also an important flavoring agent of the tobacco leaves; secondly, a-nicotine (11.73%), which is an important active ingredient in tobacco, has pungent odor and pungent taste, and brings satisfaction to people; again methyl palmitate (3.61%); the fourth was geranylacetone (1.94%) and the fifth was methyl linolenate (1.92%). All the tobacco aroma components such as aldehydes, alcohols, ketones, esters, alkanes, heterocyclic compounds, aromatic hydrocarbons and the like are brought to the roller pressing method to heat the non-burning reconstituted tobacco, so that the reconstituted tobacco is rich and harmonious in tobacco aroma, good in satisfaction and good in simulated cigarette smoking effect.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A preparation method of a cigarette without burning by heating is characterized by comprising the following steps:

(2) mixing and crushing dry materials: putting the tobacco raw material, the solid adhesive and the calcium salt of the solid additive for cigarettes into a low-temperature crusher in proportion, crushing the mixture at a low temperature to 40-300 meshes, and then crushing the mixture at a low temperature and a high speed to uniformly mix the mixture;

(3) uniformly mixing and dispersing wet materials: pouring the fibers and warm water into a material barrel in proportion, stirring at a high speed, simultaneously, assisting to enable the fibers to be defibered and dispersed more uniformly by adopting ultrasonic cavitation, adding the atomizing agent with the mass ratio in the step (1), continuing to stir at a high speed by ultrasound assistance to enable the fibers and the atomizing agent to be dispersed uniformly, and simultaneously slowly adding wet materials and tobacco flavor into the uniformly mixed dry material powder in the step (2) to stir uniformly at a high speed;

(5) rolling and packaging: the rolling packaging of the heating non-combustion embossed reconstituted tobacco by the rolling method is carried out according to the cigarette process specification, and the embossed composite aluminum foil cigarette paper and the cigarette filter stick are adopted for rolling packaging, so that the heating non-combustion cigarette with the production efficiency improved is obtained.

2. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the tobacco raw material is one or a mixture of tobacco leaves and tobacco stems.

3. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the additive for the cigarette is a cigarette flavor and a calcium salt, wherein the calcium salt is one or a mixture of calcium carbonate, calcium lactate, calcium citrate and calcium tartrate.

4. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the low-temperature crushing is carried out at the temperature of 0-4 ℃ and the mesh size of 40-300.

5. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the solid adhesive is one or a mixture of more of sodium alginate, potassium alginate, carboxymethyl cellulose, polyanionic cellulose, polyvinyl alcohol, casein glue, rosin, dextrin, chitosan and sodium glycerophosphate.

6. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the fiber is one or a mixture of wood pulp, tobacco stalk fiber, bagasse pulp, bamboo pulp and coconut fiber.

7. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the temperature of the warm water is 30-60 ℃.

8. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the atomizing agent is one or a mixture of more of glycerol, propylene glycol and ethylene glycol.

9. The method for producing a cigarette which is not burned by heating according to claim 1, wherein: the embossed composite aluminum foil cigarette paper is twill or disordered pre-embossed aluminum foil paper, wherein the thickness of the embossed aluminum foil is 1-19 mu m, and the thickness of the cigarette paper is 20-200 mu m.

10. Use of a heated non-burning cigarette produced by the method of any one of claims 1 to 9 in an electrically heated or carbon heated low temperature cigarette.