CN113940448B - Intermittent spray type method for preparing segmented aerosol generating substrate rod - Google Patents
Intermittent spray type method for preparing segmented aerosol generating substrate rod Download PDFInfo
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- CN113940448B CN113940448B CN202111447320.8A CN202111447320A CN113940448B CN 113940448 B CN113940448 B CN 113940448B CN 202111447320 A CN202111447320 A CN 202111447320A CN 113940448 B CN113940448 B CN 113940448B
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- tobacco particles
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- generating substrate
- rod
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- 239000000758 substrate Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000007921 spray Substances 0.000 title claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 135
- 241000208125 Nicotiana Species 0.000 claims abstract description 121
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 121
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 62
- 238000004513 sizing Methods 0.000 claims abstract description 37
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 238000005507 spraying Methods 0.000 claims abstract description 28
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000003892 spreading Methods 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 229920000881 Modified starch Polymers 0.000 claims description 6
- 235000019426 modified starch Nutrition 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical class CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 2
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 235000010980 cellulose Nutrition 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
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- 239000008108 microcrystalline cellulose Substances 0.000 claims description 2
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 20
- 238000009423 ventilation Methods 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 1
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- 239000000047 product Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
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- 239000004368 Modified starch Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 239000002304 perfume Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000002189 macula lutea Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a method for preparing a sectional aerosol generating substrate rod by intermittent spraying, which comprises the following steps: (1) Taking impermeable cigarette paper, spreading the impermeable cigarette paper on a conveyor belt, spreading tobacco particles on the impermeable cigarette paper, and running the conveyor belt at a fixed speed; (2) The spray header intermittently sprays an adhesive to the tops of the tobacco particles, so that the tobacco particles on the anti-seepage cigarette paper are arranged in a gluing area, an un-gluing area and a gluing area at intervals; (3) The downstream cigarette doubling and winding device of the conveyor belt winds the impermeable cigarette paper wrapped tobacco particles to obtain a sectional aerosol generating substrate rod strip, and then the sectional aerosol generating substrate rod is obtained by cutting. According to the invention, a spraying sizing method is adopted to realize partial sizing on the surfaces of tobacco particles, so that the release of aerosol after the tobacco particles are heated is ensured, and further, an intermittent spraying sizing method is adopted to prepare a sectional aerosol generating matrix rod with two ends being short rod sections formed by bonding sizing tobacco particles and the middle being scattered particle sections formed by non-sizing tobacco particles. Thus, the short rod sections at the two ends can ensure that tobacco particles which are not bonded in the middle do not fall off and scatter, and the tobacco particles which are not bonded in the middle ensure the axial ventilation capacity, the porosity and the smoke quantity of the tobacco rod.
Description
Technical Field
The invention relates to the technical field of heating non-combustible cigarettes, in particular to a method for preparing a sectional aerosol generating substrate rod by intermittent spraying.
Background
With consumer importance on health problems and the increasing demand for personalized experience of cigarette products, the tobacco industry is continuously responding to consumer demand upgrading, and various smoking articles with tar and harm reducing effects are developed. Wherein, the heating cigarette is different from the traditional cigarette product in the cigarette heating mode, so that the heating cigarette can provide healthier smoking experience while meeting the sensory requirements of consumers on the cigarette product.
The fuming material of the granular heating cigarette is bulk fuming particles, the bulk fuming particles cannot be fixed in the prior art, the granular heating cigarette must be filled into the outer tube in a filling mode, the particles are fixed on two sides of the fuming particle section in a sealing paper and sealing piece mode, the production efficiency is low, and the defective rate is high.
Firstly, bulk smoke particles are adhered together through an adhesive to form a cylindrical cigarette rod, then the cigarette rod is wrapped with cigarette paper and then is independently used as a sectional aerosol generating substrate rod, and then the aerosol generating substrate rod and other elements are combined through filling, rolling or compounding processes to prepare an aerosol generating product. Because the smoke generating section is an integral cylindrical smoke core rod, the problem that smoke generating particles fall off and scatter does not occur, and sealing films or sealing pieces on two sides of the smoke generating section are not needed. In addition, the aerosol-generating article is not limited to being packaged in combination with other components.
At present, the method for preparing the cylindrical tobacco rod by using the scattered fuming particles through hot melt adhesive is that the scattered tobacco particles are directly placed into a stirrer, a large amount of adhesive is added into the stirrer, and then the mixture is stirred and mixed uniformly and then extruded, and cooled. The problems of the cigarette core rod prepared by the method are as follows: 1. because a large amount of adhesive is added in the stirring process, after cooling, the cooled adhesive also exists in gaps between adjacent tobacco particles in the tobacco core rod, so that the porosity of the tobacco core rod is low, and the axial ventilation quantity is small; 2. if less adhesive is directly added in the stirring and mixing process to avoid the first problem, the adhesive is unevenly dispersed, the tobacco particles with no glue on the surface are adjacent, the adhesion is impossible, and the problem of scattering of fuming particles occurs; 3. a still further critical problem is that the addition of a significant amount of adhesive also results in the application of a significant amount of adhesive to the surface of each tobacco particle, thereby severely affecting aerosol release after the tobacco particles are heated, and in essence, the sizing is only for the purpose of bonding scattered tobacco particles, but it is not desirable that places where tobacco particles do not bond are also sized, affecting aerosol release.
Therefore, how to ensure that the surfaces of the tobacco particles which are mutually adhered are provided with the adhesive, and the surfaces which are not adhered are provided with the adhesive is a key for ensuring the porosity and the smoke amount of the tobacco rod.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention adopts a spraying sizing method, and the adhesive is directly sprayed to the top of the tobacco particles from the spray header at the top of the tobacco particles, so that only the top sizing of the tobacco particles can be ensured, the bottom surface and the side surface are not sized, the release of aerosol after the tobacco particles are heated is ensured on the basis of realizing bonding, and the smoke quantity, the axial ventilation and the porosity of the tobacco core rod are ensured.
Furthermore, the spraying sizing method is intermittent spraying sizing, so that tobacco particles on the anti-seepage cigarette paper are arranged in a sizing area, an un-sizing area and a sizing area at intervals, the sized tobacco particles, the un-sized tobacco particles and the sized tobacco particles are fed into an outer tube in batches by adopting a blanking method, and after cooling, a segmented aerosol generating substrate rod with two ends being short rod segments formed by bonding the sized tobacco particles and middle being scattered particle segments formed by the un-sized tobacco particles is obtained. Thus, the short rod sections at the two ends can ensure that tobacco particles which are not bonded in the middle do not fall off and scatter, and the tobacco particles which are not bonded in the middle ensure the axial ventilation and the porosity of the tobacco rod.
The first aspect of the present invention provides a method of intermittent spray preparation of segmented aerosol generating substrate rods comprising the steps of:
(1) The method comprises the steps of (1) spreading impermeable cigarette paper on a conveyor belt, spreading tobacco particles on the impermeable cigarette paper, and enabling the conveyor belt to carry the impermeable cigarette paper and the tobacco particles at a fixed speed;
(2) The spraying heads for spraying the adhesive are arranged above the conveyor belt, and intermittently spray the adhesive to the tops of the tobacco particles, so that the tobacco particles on the impermeable cigarette paper are arranged in a gluing area, an un-gluing area and a gluing area at intervals;
(3) The downstream of the running direction of the conveyor belt is provided with a cigarette doubling and winding device, along with the running of the conveyor belt, the cigarette doubling and winding device wraps tobacco particles with seepage-proofing cigarette paper conveyed by the conveyor belt, a sectional aerosol generating substrate rod strip is obtained through winding, and then the sectional aerosol generating substrate rod strip is cut according to requirements to obtain a sectional aerosol generating substrate rod for aerosol generating products.
Preferably, the two ends of the sectional aerosol generating substrate rod are short rod sections formed by bonding the sized tobacco particles, and the middle is a scattered particle section formed by non-sized tobacco particles.
Preferably, the mass ratio of the tobacco particles of the short rod segment to the tobacco particles of the scattered particle segment is 1:10-1:1, more preferably, the mass ratio of the tobacco particles of the short rod segment to the tobacco particles of the scattered particle segment is 1:6.
Preferably, the mass ratio of tobacco particles to binder in the sizing region is from 1:1 to 1:4, more preferably, the mass ratio of tobacco particles to binder in the sizing region is from 1:3.
Preferably, the conveyor belt in step (1) is operated at a speed of 0.5-2.5 cm/s, more preferably the conveyor belt in step (1) is operated at a speed of 2 cm/s.
Preferably, the spraying procedure of the spraying head in the step (2) is to spray for 0.5-2 seconds at intervals of 1-5 seconds, more preferably, the spraying procedure of the spraying head in the step (2) is to spray for 1s at intervals of 5 seconds.
Preferably, more preferably, the top sizing area of the tobacco particles in the sizing region in step (2) is 30-60% of the surface area of the tobacco particles, i.e., the sized tobacco particles in the sizing region are top sized only and the sides and bottom are not sized.
Preferably, the segmented aerosol-generating substrate rod has a porosity of 40-80%, more preferably, the segmented aerosol-generating substrate rod has a porosity of 60%.
Preferably, the axial suction resistance of the segmented aerosol generating substrate rod is in the range of 5 to 40Pa/mm, more preferably, the axial suction resistance of the segmented aerosol generating substrate rod is 15Pa/mm.
Preferably, the gram weight of the impermeable/heat-conducting paper is 30-70g/m 2 . More preferably, the barrier/thermal paper has a grammage of 60g/m 2 . The impermeable cigarette paper can be rolled to wrap tobacco particles on one hand, and the gram weight of the impermeable cigarette paper can be selected to be larger on the other hand, and the impermeable cigarette paper can also play a role in keeping the roundness of the rolled sectional tobacco rod.
Preferably, the tobacco particles have a particle size of 8-60 mesh, more preferably, the tobacco particles have a particle size of 20-30 mesh.
Preferably, the adhesive is selected from, but not limited to, chitosan, hydroxyethylated complex modified ethylcellulose, guar gum, carboxymethyl cellulose, starches, modified starches, plant celluloses, microcrystalline cellulose, hydroxyethyl methyl cellulose.
The second aspect of the invention provides a sectional aerosol generating substrate rod prepared by the intermittent spraying type preparation method of the first aspect of the invention.
A third aspect of the invention provides an aerosol-generating article comprising a segmented aerosol-generating substrate rod according to the second aspect of the invention.
The impermeable/heat-conducting paper has an impermeable/heat-conducting layer with impermeable or heat-conducting function, and the impermeable/heat-conducting layer comprises a waterproof layer and/or an oil-proof layer and/or a heat-conducting layer;
the waterproof layer adopts alkyl ketene dimer AKD, cationic rosin size or iron-free aluminum sulfate mixed paraffin materials; the oil-proof layer is made of fluorocarbon organic matter, modified starch, mixture of AKD and paraffin, and mixture of AKD and modified starch. The heat conducting layer is selected from but not limited to an aluminum foil layer, which is added to the inner wall of the cigarette paper tube in a sticking way; the aluminum foil layer can play a role in water resistance and/or oil resistance, and meanwhile, the aluminum foil layer also has a heat conduction and insulation function, so that the fuming material on the inner wall of the cigarette is heated uniformly.
Preferably, the waterproof layer and/or the oil-proof layer are/is coated on the inner wall of the cigarette paper tube in a spraying mode.
Moisture in the smoke materials in the cigarette storage process permeates to the outer side of the cigarette paper tube to generate yellow spots, so that a waterproof layer is required to be added to the inner wall of the cigarette paper tube filled with the smoke materials. The waterproof layer adopts alkyl ketene dimer AKD, cation rosin size or iron-free aluminum sulfate to mix and use, and paraffin material can prevent the moisture in the smoking material from oozing to the cigarette paper tube outside.
Similarly, a smoke agent, essence and perfume and the like are added into the smoke material, the smoke agent in the smoke material can carry the essence and perfume to permeate to the outer side of the paper tube in the long-time placement process, yellow spots are generated, the appearance of the paper tube is affected, and an oil-proof layer is required to be added to the inner wall of the cigarette paper tube filled with the smoke material because the smoke agent is oily. The oil-proof layer is made of fluorocarbon organic matters, modified starch, AKD and paraffin mixture, and the AKD and modified starch mixture can prevent smoke agent in the smoke material from carrying essence and perfume to permeate to the outer wall of the paper tube, and can prevent macula lutea.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts a spraying sizing method, the adhesive is directly sprayed to the tops of the tobacco particles from the spray header at the tops of the tobacco particles, so that the tobacco particles are only sized at the tops, the bottom surface and the side surfaces are not sized, the area of the top sizing of the tobacco particles accounts for 20-50% of the surface area of the tobacco particles, and the adhesive is arranged in the partial surface area of at least one tobacco particle in two adjacent tobacco particles after uniform stirring, so that the adhesion can be realized. Also, as the bottom surface and the side surface of the tobacco particles are not glued, the release of aerosol after the tobacco particles are heated can be well ensured, and the smoke quantity, the axial ventilation and the porosity of the tobacco rod are ensured.
2. Furthermore, the intermittent spraying sizing method is that the tobacco particles are directly paved on the anti-seepage cigarette paper, only one layer of tobacco particles are arranged on the anti-seepage cigarette paper, the conveyor belt carries the anti-seepage cigarette paper at a fixed speed and operates, a spray head for spraying adhesive is arranged above the conveyor belt, the spray head intermittently sprays the adhesive to the tops of the tobacco particles, so that the tobacco particles on the anti-seepage cigarette paper are in a sizing area, an un-sizing area and a sizing area are arranged at intervals, a cigarette doubling and winding device is arranged at the downstream of the running direction of the conveyor belt, the cigarette doubling and winding device wraps the anti-seepage cigarette paper conveyed by the conveyor belt with the tobacco particles, a sectional aerosol generating substrate bar strip is obtained by winding, and then the sectional aerosol generating substrate bar strip is cut according to requirements, so that the sectional aerosol generating substrate bar for aerosol generating products is obtained. The two ends of the sectional aerosol generating substrate rod are short rod sections formed by gluing tobacco particles, and the middle is a scattered particle section formed by non-gluing tobacco particles, so that the short rod sections at the two ends can ensure that the tobacco particles which are not glued in the middle do not fall off and scatter, and the tobacco particles which are not glued in the middle ensure the axial ventilation capacity and the porosity of the tobacco core rod.
In general, the invention adopts a spraying sizing method to realize partial sizing on the surfaces of tobacco particles, ensures the release of aerosol after the tobacco particles are heated, and further adopts intermittent spraying sizing and blanking combination to prepare a sectional aerosol generating matrix rod with two ends being short rod sections formed by bonding sizing tobacco particles and the middle being scattered particle sections formed by non-sizing tobacco particles. Thus, the short rod sections at the two ends can ensure that tobacco particles which are not bonded in the middle do not fall off and scatter, and the tobacco particles which are not bonded in the middle ensure the axial ventilation capacity, the porosity and the smoke quantity of the tobacco rod.
Drawings
FIG. 1 is a schematic illustration of a spray sizing process during intermittent spray preparation of segmented aerosol generating substrate rods;
FIG. 2 is a top view of tobacco particles after a spray sizing process;
fig. 3 is a schematic illustration of a segmented aerosol generating substrate rod structure.
Reference numerals in the description of the drawings: the cigarette paper comprises a conveyor belt, a 2-spraying device, a 3-sprayed adhesive, 4-tobacco particles, a 5-segmented aerosol generating substrate rod, a 6-airflow channel, 7-impermeable cigarette paper, 41-sized tobacco particles, 42-non-sized tobacco particles, a short rod segment formed by bonding 51-sized tobacco particles and a scattered particle segment formed by 52-non-sized tobacco particles.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings, which are given by way of illustration only and not limitation.
Comparative example 1
Directly placing scattered tobacco particles into a stirrer, adding a large amount of binder into the stirrer, stirring and uniformly mixing, extruding, and cooling.
The surface of fuming particles in the aerosol generating substrate rod obtained finally is almost 100% sized, the porosity after measurement is less than 30%, and the axial suction resistance is as high as 100Pa/mm.
Example 1
This embodiment is a method of intermittent spray preparation of segmented aerosol generating substrate sticks comprising the steps of:
(1) Taking impermeable cigarette paper, spreading the impermeable cigarette paper on a conveyor belt 1, then taking tobacco particles 4, spreading the tobacco particles on impermeable cigarette paper 7, and conveying the impermeable cigarette paper 7 and the tobacco particles 4 by the conveyor belt 1 at a fixed speed;
(2) A spray header (spray device) 2 for spraying an adhesive is arranged above the conveyor belt 1, and the spray header intermittently sprays the adhesive 3 to the tops of tobacco particles, so that the tobacco particles on the impermeable cigarette paper 7 are arranged at intervals in a gluing area, an un-gluing area and a gluing area;
(3) The downstream of the running direction of the conveyor belt is provided with a cigarette doubling and winding device, along with the running of the conveyor belt, the cigarette doubling and winding device wraps tobacco particles with seepage-proof cigarette paper conveyed by the conveyor belt, a sectional aerosol generating substrate rod strip is obtained through winding, then the sectional aerosol generating substrate rod strip is cut according to requirements to obtain a sectional aerosol generating substrate rod 5 for an aerosol generating product, and gaps among tobacco particles in the sectional aerosol generating substrate rod form an airflow channel 6 which axially penetrates through the sectional aerosol generating substrate rod.
The segmented aerosol generating substrate rod has short rod segments 51 formed by adhering sized tobacco particles at both ends and scattered particle segments 52 formed by un-sized tobacco particles in the middle. The mass ratio of the tobacco particles in the short rod section to the tobacco particles in the scattered particle section is 1:6.
The mass ratio of the tobacco particles to the adhesive in the sizing area is 1:3. The conveyor belt in step (1) was operated at a speed of 2 cm/sec. The spraying procedure of the spray head in the step (2) is that the spray head sprays for 1s at intervals of 5 seconds. The top-sized area of the tobacco particles in the sizing region in step (2) is 50% of the surface area of the tobacco particles, that is, the sized tobacco particles in the sizing region are only top-sized and the sides and bottom are not sized. The gram weight of the seepage-proofing/heat-conducting paper is 60g/m 2 。
The particle size of the tobacco particles is 20-30 meshes. The adhesive is selected from shell carboxymethyl cellulose.
The porosity of the resulting segmented aerosol generating substrate rod was measured to be 60%. The axial suction resistance of the segmented aerosol generating substrate rod was 20Pa/mm.
Claims (10)
1. A method of preparing a segmented aerosol generating substrate rod by intermittent spraying, comprising the steps of:
(1) The method comprises the steps of (1) spreading impermeable cigarette paper on a conveyor belt, spreading tobacco particles on the impermeable cigarette paper, and enabling the conveyor belt to carry the impermeable cigarette paper and the tobacco particles at a fixed speed;
(2) The spraying heads for spraying the adhesive are arranged above the conveyor belt, and intermittently spray the adhesive to the tops of the tobacco particles, so that the tobacco particles on the impermeable cigarette paper are arranged in a gluing area, an un-gluing area and a gluing area at intervals;
(3) The downstream of the running direction of the conveyor belt is provided with a cigarette doubling and winding device, along with the running of the conveyor belt, the cigarette doubling and winding device wraps tobacco particles with seepage-proof cigarette paper conveyed by the conveyor belt, a sectional aerosol generating substrate rod strip is obtained through winding, then the sectional aerosol generating substrate rod strip is cut according to requirements, and a sectional aerosol generating substrate rod is obtained, and gaps among tobacco particles in the sectional aerosol generating substrate rod form an airflow channel which axially penetrates through the sectional aerosol generating substrate rod.
2. The method of intermittent spray preparation of segmented aerosol generating substrate rods according to claim 1, wherein the segmented aerosol generating substrate rods have short rod segments formed by gluing of sized tobacco particles at both ends and scattered particle segments formed by non-sized tobacco particles in the middle.
3. The method of intermittent spray preparation of segmented aerosol generating substrate rods according to claim 2, wherein the mass ratio of short rod segment tobacco particles to scattered particle segment tobacco particles is 1:10-1:1; the mass ratio of the tobacco particles to the adhesive in the sizing area is 1:1-1:4.
4. The method of preparing segmented aerosol generating substrate rods by intermittent spraying according to claim 1, wherein the running speed of the conveyor belt in step (1) is 0.5-2.5 cm/s; the spraying procedure of the spray header in the step (2) is that the spray header is sprayed for 0.5-2 seconds at intervals of 1-5 seconds.
5. The intermittent spray process for preparing segmented aerosol generating substrate rods according to claim 1, wherein the top sizing area of the tobacco particles in the sizing region in step (2) is 30-60% of the surface area of the tobacco particles.
6. The method of preparing a segmented aerosol generating substrate rod according to claim 1, wherein the segmented aerosol generating substrate rod has a porosity of 40-80%.
7. The method of intermittent spray preparation of segmented aerosol generating substrate sticks of claim 1 wherein the segmented aerosol generating substrate stick has an axial draw resistance of 5 to 40Pa/mm.
8. The method of intermittent spray preparation of segmented aerosol generating substrate rods according to claim 1 wherein the grammage of the barrier/thermal paperIs 30-70g/m 2 The particle size of the tobacco particles is 8-60 meshes; the adhesive is selected from chitosan, hydroxyethyl composite modified ethyl cellulose, guar gum, carboxymethyl cellulose, starches, modified starches, plant celluloses, microcrystalline cellulose, hydroxyethyl cellulose and hydroxyethyl methyl cellulose.
9. A segmented aerosol generating substrate rod prepared by the method of preparing a segmented aerosol generating substrate rod according to any one of claims 1 to 8.
10. An aerosol-generating article comprising the segmented aerosol-generating substrate rod of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447320.8A CN113940448B (en) | 2021-11-30 | 2021-11-30 | Intermittent spray type method for preparing segmented aerosol generating substrate rod |
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| WO2020113796A1 (en) * | 2018-12-06 | 2020-06-11 | 安徽中烟工业有限责任公司 | Tobacco granule type tobacco product incombustible in heating and manufacturing method therefor |
| JP2020174586A (en) * | 2019-04-18 | 2020-10-29 | 日本たばこ産業株式会社 | Heating type cigarette and production method thereof |
| CN112716031A (en) * | 2021-01-08 | 2021-04-30 | 江西中烟工业有限责任公司 | Particle type aerosol generating product and rolling and forming method thereof |
| WO2021218811A1 (en) * | 2020-04-29 | 2021-11-04 | 广东省金叶科技开发有限公司 | Heat-not-burn cigarette and preparation method therefor, and heat-not-burn cigarette system |
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| WO2020113796A1 (en) * | 2018-12-06 | 2020-06-11 | 安徽中烟工业有限责任公司 | Tobacco granule type tobacco product incombustible in heating and manufacturing method therefor |
| JP2020174586A (en) * | 2019-04-18 | 2020-10-29 | 日本たばこ産業株式会社 | Heating type cigarette and production method thereof |
| WO2021218811A1 (en) * | 2020-04-29 | 2021-11-04 | 广东省金叶科技开发有限公司 | Heat-not-burn cigarette and preparation method therefor, and heat-not-burn cigarette system |
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