WO2021258878A1

WO2021258878A1 - Heat-not-burn cigarette and production method

Info

Publication number: WO2021258878A1
Application number: PCT/CN2021/092705
Authority: WO
Inventors: 刘华臣; 李丹; 蒋慧昀
Original assignee: 湖北中烟工业有限责任公司
Priority date: 2020-06-24
Filing date: 2021-05-10
Publication date: 2021-12-30
Also published as: CN112369716A

Abstract

The present application provides a heat-not-burn cigarette and a production method. The heat-not-burn cigarette comprises a smoking section and a filter tip arranged in the length direction of the cigarette; the smoking section comprises a columnar smoking material and a composite heating layer surrounding the side surface of the smoking material; the composite heating layer comprises an inner high-infrared emissivity material layer and an outer electromagnetic induction layer; the electromagnetic induction layer can induce an alternating electromagnetic field to generate heat; the heat generated by the electromagnetic induction layer can excite the high-infrared emissivity material layer to emit infrared rays. By using the heat-not-burn cigarette, the heating of the smoking material is more uniform and efficient.

Description

Heating non-burning cigarettes and preparation method

Technical field

The application belongs to the technical field of new tobacco, and specifically relates to a heat-not-burn cigarette and a preparation method.

Background technique

Traditional heating non-combustion cigarettes usually use a heating element inserted into the heating non-combustion cigarette to heat the heating non-combustion smoke, and the heating element is usually a resistance heating body. The smoking material in contact with the heating element is usually higher than the surrounding smoking material. This can easily cause the smoking material to coke and carbonize on the surface of the heating element, or even stick to the surface of the heating element.

Technical solutions

The purpose of this application is to provide a heat-not-burn cigarette and a preparation method for the deficiencies of the prior art.

In order to solve the above technical problems, the present application adopts the following technical solution: a heating non-combustion cigarette, comprising a smoking section and a filter arranged along its length, the smoking section including a columnar smoking material and surrounding the smoking section The composite heating layer on the side of the smoke material; the composite heating layer includes an inner high infrared emissivity material layer and an outer electromagnetic induction layer, the electromagnetic induction layer can induce alternating electromagnetic fields to generate heat, and the electromagnetic induction layer generates heat The high infrared emissivity material layer can be excited to emit infrared rays.

Optionally, the material of the electromagnetic induction layer includes conductive material or ferromagnetic material.

Optionally, the material of the electromagnetic induction layer includes: at least one of iron, cobalt, nickel, titanium, titanium carbide, titanium nitride, or ferrite.

Optionally, the infrared emissivity of the high infrared emissivity material layer is between 0.85 and 0.98.

Optionally, the material of the high infrared emissivity material layer includes: perovskite, silicon carbide, quartz, magnesite, spodumene, calcite, magnesite, dolomite, strontium, glauberite, alum At least one of stone and kyanite.

Optionally, the material of the high infrared emissivity material layer further includes a plasticizer.

Optionally, the material of the plasticizer includes: at least one of bentonite, kaolin, and sodium carboxymethyl cellulose.

Optionally, the thickness of the composite heating layer is between 0.02 mm and 0.5 mm.

Optionally, the smoking section further includes a first wrapping layer that wraps the outer surface of the composite heating layer, and the heat-not-burn cigarette further includes a second wrapping layer that wraps the first wrapping layer and the filter tip Floor.

In order to solve the above technical problems, this application adopts the following technical solution: a method for preparing heat-not-burn cigarettes, including:

Preparation of smoking material;

A slurry containing a material with high infrared emissivity is covered on the electromagnetic induction material layer and dried, wherein the electromagnetic induction layer can induce alternating electromagnetic fields to generate heat, and the heat generated by the electromagnetic induction layer can excite the high Infrared emissivity material layer emits infrared;

Combine the first wrapping layer with the surface of the electromagnetic induction material layer facing away from the high infrared emissivity material, and use the surface of the high potential temperature emissivity material to wrap the smoking material to form a columnar shape The smoking section.

Optionally, the method further includes: wrapping the smoking section and the filter tip with a second wrapping layer to form a heat-not-burn cigarette.

Optionally, the method further includes: the step of preparing the slurry containing the high infrared emissivity material, including:

Grind high infrared emissivity materials into powder;

After adding a plasticizer to the powdery high infrared emissivity material and mixing it with water, it is ground into a slurry of the high infrared emissivity material.

Optionally, in the step of adding a plasticizer and water to the powdery high-infrared emissivity material, the mass ratio of the plasticizer to the powdery high-infrared emissivity material is between 0.5% and 12%. In the meantime, the mass ratio of the added water to the powdered high infrared emissivity material is between 12% and 18%.

Optionally, the process of covering the slurry containing the high infrared emissivity material on the electromagnetic induction material layer includes any one of dipping, showering, sintering and spraying.

Beneficial effect

Compared with the prior art, the beneficial effect of the present application is that the heating and non-combustion device makes the electromagnetic induction layer heat through the non-contact way of electromagnetic induction. The high infrared emissivity material layer emits infrared rays, and the infrared rays further heat the smoking material, and the heating is more uniform. Since the elements of the heating and non-combustion device do not directly contact the smoking material, there is no problem in the prior art that the surface of the heating element adheres to the coked smoking material.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of the heating and non-burning cigarettes according to the embodiment of the present application.

Fig. 2 is a cross-section of the position of the smoking section of the heating non-combustion cigarette shown in Fig. 1.

Fig. 3 is a flowchart of a method for preparing heat-not-burn cigarettes provided by an embodiment of the present application.

The reference signs are as follows: 1. Smoke section; 2. Filter tip; 3. Second wrapping layer; 11. First wrapping layer; 12. Electromagnetic induction layer; 13. High infrared emissivity material layer; 14. Smoke generating material .

Embodiments of the present invention

In this application, it should be understood that terms such as "including" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in this specification, and are not intended to exclude one Or the possibility of the existence of multiple other features, numbers, steps, behaviors, components, parts or combinations thereof.

In addition, it should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments.

The application will be further described below in conjunction with the embodiments shown in the drawings.

As shown in FIG. 1 and FIG. 2, the embodiment of the present application provides a heating non-combustion cigarette, which includes a smoking section 1 and a filter 2 arranged along its length, and the smoking section 1 includes a columnar smoking material 14 The composite heating layer surrounding the side of the smoking material 14; the composite heating layer includes a high infrared emissivity material layer 13 on the inner side and an electromagnetic induction layer 12 on the outer side. The electromagnetic induction layer 12 can induce alternating electromagnetic fields to generate heat. The heat generated can excite the high infrared emissivity material layer 13 to emit infrared rays.

The heating and non-combustion device makes the electromagnetic induction layer 12 heat through the non-contact way of electromagnetic induction. The electromagnetic induction layer 12 heats the smoking material 14 surrounded by it, and also makes the high infrared emissivity material layer 13 emit infrared rays. Infrared rays further heat the smoking material 14, and the heating is more uniform. Since the components of the heating non-combustion device do not directly contact the smoking material 14, there is no problem in the prior art that the surface of the heating element adheres to the coked smoking material 14.

Optionally, the material of the electromagnetic induction layer 12 includes a conductive material or a ferromagnetic material. Among them, the ferromagnetic conductor induces an alternating electromagnetic field with high heating efficiency, but the material of the electromagnetic induction layer 12 is not limited to a ferromagnetic conductor.

Optionally, the material of the electromagnetic induction layer 12 includes at least one of metals such as iron, cobalt, nickel, and titanium, non-metallic conductors such as titanium carbide and titanium nitride, or ferromagnetic materials such as ferrite.

Optionally, the infrared emissivity of the high infrared emissivity material layer 13 is between 0.85 and 0.98. The higher the infrared emissivity, the more sufficient the emitted infrared rays, and the more uniform heating of the smoking material 14 will be.

For example, the material of the high infrared emissivity material layer 13 includes: perovskite, silicon carbide, quartz, magnesite, spodumene, calcite, magnesite, dolomite, strontium, glauberite, alunite, blue At least one of the spar. These materials not only have high infrared emissivity, but also are easy to prepare into coating structures. The corresponding preparation method will be described in detail later.

Optionally, the material of the high infrared emissivity material layer 13 further includes a plasticizer. The plasticizer is used to prepare the coating structure, and the corresponding preparation method will be described in detail later.

For example, the material of the plasticizer includes at least one of bentonite, kaolin, and sodium carboxymethyl cellulose.

Optionally, the thickness of the composite heating layer is between 0.02 mm and 0.5 mm. It is necessary to ensure that the smoking material 14 has sufficient heating capacity, and also to consider the cost factor and the limitation of the overall diameter of the heated non-burning cigarette, so the thickness of the composite heating layer is limited as above.

Optionally, it further includes: a first wrapping layer 11 wrapping the outer side of the composite heating layer, and a second wrapping layer 3 wrapping the first wrapping layer 11 and the filter 2. That is, the first wrapping layer 11 is used to form a stable smoking section 1, and the second wrapping layer 3 is used to form a stable heating and non-combustible cigarette. Specifically, for example, the first wrapping layer 11 and the second wrapping layer 3 are formed paper. Of course, how the smoking section 1 and the heat-not-burn cigarettes form a stable appearance is not limited to this.

Based on the same inventive concept and referring to FIG. 3, the embodiment of the present application also provides a method for preparing heat-not-burn cigarettes, which includes the following steps.

Step S1, preparing a smoking material;

Step S3: Cover the slurry containing high infrared emissivity material on the electromagnetic induction material layer and dry it, wherein the electromagnetic induction layer can induce alternating electromagnetic fields to generate heat, and the heat generated by the electromagnetic induction layer can stimulate high infrared emissivity The material layer emits infrared rays;

Step S4: Combine the first wrapping layer with the surface of the electromagnetic induction material layer facing away from the high infrared emissivity material, and use the surface of the high potential temperature emissivity material to wrap the smoking material to form a columnar smoking section.

The above preparation method uses the first wrapping layer as the base of the smoking section, and the electromagnetic induction material layer as the base of the composite heating layer. After the composite heating layer is prepared, the composite heating layer is combined on the first wrapping layer, and then the layered structure formed by the first wrapping layer and the composite heating layer is bent into a tube to wrap the smoking material with its inner space. Thus, the heating and non-burning cigarette smoking section provided in the foregoing embodiment is produced.

Optionally, the method further includes: step S5, using a second wrapping layer to wrap the smoking section and the filter tip to form a heat-not-burn cigarette.

That is, the second wrapping layer is used to fix the smoking section and the filter tip in a rod-shaped structure.

Optionally, the method further includes: step S2, a step of preparing a slurry containing a material with high infrared emissivity.

In this step, firstly, the high infrared emissivity material is ground into a powder; then, after adding a plasticizer to the powdered high infrared emissivity material and mixing it with water, it is ground into a slurry of the high infrared emissivity material .

Specifically, the material of the plasticizer includes: at least one of bentonite, kaolin, and sodium carboxymethyl cellulose.

Specifically, in the step of adding a plasticizer and water to the powdery high-infrared emissivity material, the mass ratio of the plasticizer to the powdery high-infrared emissivity material is between 0.5% and 12%, and the added water is mixed with water. The mass ratio of the powdery high infrared emissivity material is between 12%-18%. The content of the plasticizer should not be too large, otherwise the infrared rays emitted by the high infrared emissivity material layer in the final product will be limited; if the content is too small, the structure of the high infrared emissivity material layer will be unstable. If the water content is too low, the mixing will be uneven, and if the water content is too high, the time cost of drying will be too high.

Optionally, the process of covering the slurry containing the high infrared emissivity material on the electromagnetic induction material layer includes any one of dipping, showering, and spraying.

The following examples 1-5 are detailed processes for preparing heat-not-burn cigarettes.

Example 1:

(1) Preliminarily pulverize flue-cured tobacco, tobacco dust, cut tobacco, and tobacco leaves in a proportion of 25% each by weight to powder, and the particle size of the powder is controlled between 15 mesh and 400 mesh;

(2) Add 5% flavors and fragrances, 5% tobacco extract, 2% binder, and 10% propylene glycol to prepare a mixture.

(3) Add 10% water, stir it into a homogeneous substance, roll it, roll it into a 0.01mm tobacco sheet, and dry it at 100°C for 36 hours, and dry it to 3% water for use.

(4) Pickling and ultrasonic cleaning the 0.02mm thick iron flakes to remove the surface oxide film and pollutants.

(5) Put the perovskite into the ball mill tank, the ball-to-material ratio is 6:1, the rotation speed is 200rpm and the ball milling time is 18h, and the material of the grinding ball is alumina.

(6) Select 600-1200 mesh powder from the crushed ball-milled high-infrared emissivity material, add 0.5% bentonite and 12% water and mix it again to obtain a high-infrared emissivity material slurry; the ball-to-battery ratio is 8:1, The rotation speed is 200rpm and the time is 25h. The material of the grinding ball is alumina.

(7) The prepared high infrared emissivity material slurry is uniformly covered on the surface of the ferromagnetic material by spraying. Then put the covered composite heating material into an oven, and keep the temperature at 100° C. for 24 hours to obtain a composite heating material layer.

(8) The inner wall of the cigarette paper is compounded with the electromagnetic induction layer of the composite heating material layer, and then the aforementioned tobacco sheet is wrapped to form a smoking section with a cigarette structure. The smoking section containing the composite heating material layer and the filter pass through the cigarette paper Make connections to form heat-not-burn cigarettes.

Example 2:

(1) 80% shredded tobacco and 20% tobacco leaves are preliminarily pulverized into powder by a pulverizer, and the particle size of the powder is controlled between 25 mesh and 350 mesh.

(2) Add 3% flavor and fragrance, 8% tobacco extract, 4% binder, 5% propylene glycol, and 5% glycerin to prepare a mixture.

(3) Add 50% water, stir it into a homogeneous material, roll it, roll it into 0.5mm tobacco flakes, and dry it at 90°C for 12 hours, and dry it to 8% water for use.

(4) Pickling and ultrasonic cleaning the 0.05mm thick nickel sheet to remove the surface oxide film and pollutants;

(5) Put the silicon carbide into the ball mill tank, the ball-to-material ratio is 6:1, the rotation speed is 200 rpm and the ball milling time is 24 hours, and the material of the grinding balls is alumina.

(6) Select 600-1200 mesh powder from the pulverized ball-milled infrared material, add 8% kaolin and 16% water, and then ball-mill it again to obtain the infrared material slurry; the ball-to-battery ratio is 8:1, the rotation speed is 200rpm and the time is 24h, the material of the grinding ball is alumina.

(7) The prepared slurry containing the high infrared emissivity material is uniformly covered on the surface of the ferromagnetic material by showering. Then put the covered composite heating material into an oven, and keep the temperature at 120° C. for 24 hours to prepare the composite heating material layer.

(8) The inner wall of the cigarette paper is compounded with the electromagnetic induction layer of the composite heating material layer and then the tobacco sheet is wrapped to form a smoking section with a cigarette structure. The smoking section containing the composite heating material layer and the filter are connected through the cigarette paper. The formation of heat-not-burn cigarettes.

Example 3:

(1) The flue-cured tobacco, air-cured tobacco, oriental tobacco, shredded tobacco, and tobacco leaves are preliminarily crushed into powder by a pulverizer in a proportion of 20% each by weight, and the particle size of the powder is controlled between 15 mesh and 400 mesh.

(2) Add 6% flavor and fragrance, 8% tobacco extract, 6% binder, and 10% glycerin to prepare a mixture.

(3) Add 8% water, and use a granulator to make tobacco particles with a diameter of 1 mm.

(4) The 0.1mm thick cobalt flakes are pickled and ultrasonically cleaned to remove the surface oxide film and pollutants.

(5) Put quartz, magnesium tourmaline, spodumene, and calcite into a ball milling tank in a weight ratio of 25% each, with a ball-to-battery ratio of 8:1, a rotating speed of 250rpm and a ball milling time of 36h, and the ball material is oxidized aluminum.

(6) Select 800-1200 mesh powder from the crushed ball-milled infrared material, add 8% kaolin and 16% water, and then ball-mill it again to obtain the infrared material slurry; the ball-to-material ratio is 8:1, the speed is 200rpm and the time is 24h, the material of the grinding ball is alumina.

(7) The prepared slurry containing the high infrared emissivity material is uniformly covered on the surface of the ferromagnetic material by showering. Then put the covered composite heating material into an oven, and keep the temperature at 110° C. for 18 hours to obtain a composite heating material layer.

(8) The inner wall of the cigarette paper is compounded with the electromagnetic induction layer of the composite heating material layer and then the tobacco particles are wrapped to form a smoking section with a cigarette structure. The smoking section containing the composite heating material layer and the filter are connected through the cigarette paper, The formation of heat-not-burn cigarettes.

Example 4:

(1) The flue-cured tobacco, platycodon, tobacco dust, shredded tobacco, and tobacco stems are preliminarily pulverized into powder in a proportion of 20% by weight each, and the particle size of the powder is controlled between 30 mesh and 300 mesh.

(2) Add 10% flavor and fragrance, 10% tobacco extract, 6% binder, 5% polyol, 5% polyacid, and 5% polybasic fat to prepare a mixture.

(3) Add 3% water, and use a granulator to make tobacco particles with a diameter of 0.1 mm.

(4) The 0.2mm thick aluminum foil is pickled and ultrasonically cleaned to remove the surface oxide film and pollutants.

(5) Put the perovskite, magnesium tourmaline, spodumene, and silicon carbide into the ball milling tank in a weight ratio of 25% each, with a ball-to-material ratio of 8:1, a rotation speed of 250rpm and a ball milling time of 32h, and the grinding ball The material is alumina.

(6) Select 800-1200 mesh powder from the crushed and ball-milled infrared materials, add 5% kaolin, 5% bentonite and 18% water, and then ball-mill again to obtain infrared material slurry; the ball-to-battery ratio is 9:1, and the rotation speed is 280rpm and time is 32h, and the material of the grinding ball is alumina.

(7) The prepared slurry containing the high infrared emissivity material is uniformly covered on the surface of the ferromagnetic material by showering. Then put the covered composite heating material into an oven, and keep the temperature at 80° C. for 36 hours to obtain the composite heating material.

(8) The inner wall of the cigarette paper is compounded with the electromagnetic induction layer of the composite heating material, and then the tobacco particles are wrapped to form a smoking section with a cigarette structure. The smoking section containing the composite heating material layer and the filter are connected through cigarette paper to form a heating non-burning cigarette.

Example 5:

(1) The flue-cured tobacco, air-cured tobacco, oriental tobacco, tobacco dust, tobacco stalks, tobacco stalks, shredded tobacco, and tobacco leaves are preliminarily pulverized into powder at a weight ratio of 12.5% each, and the particle size of the powder is controlled within 15-400 mesh.

(2) 15% flavor and fragrance, 15% tobacco extract, 8% binder, propylene glycol 5%, glycerin 5%, and glyceride 5% are added to prepare a mixture.

(3) Add 12% water, and use a granulator to make tobacco particles with a diameter of 2 mm.

(4) The 0.4mm thick ferrite sheet is pickled and ultrasonically cleaned to remove the surface oxide film and pollutants.

(5) Put the alunite, kyanite, spodumene, and silicon carbide into the ball milling tank at a weight ratio of 25% each, with a ball-to-material ratio of 10:1, a rotating speed of 300rpm and a ball milling time of 36h, and the material of the ball It is alumina.

(6) Select 800-1200 mesh powder from the crushed ball-milled infrared material, add 4% kaolin, 4% bentonite, 4% sodium carboxymethyl cellulose and 18% water, and then ball mill again to obtain the infrared material slurry; The material ratio is 10:1, the speed is 300rpm and the time is 36h, and the material of the grinding ball is alumina.

(7) The prepared slurry containing the high infrared emissivity material is uniformly covered on the surface of the ferromagnetic material by showering. Then put the covered composite heating material into an oven, and keep the temperature at 120° C. for 12 hours to prepare the composite heating material.

(8) The inner wall of the cigarette paper is compounded with the electromagnetic induction material layer of the composite heating material, and then the tobacco particles are wrapped to form a smoking section with a cigarette structure. The smoking section containing the composite heating material layer and the filter are connected through cigarette paper to form a heating non-burning cigarette.

The various embodiments in this application are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

The protection scope of the present application is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope and spirit of the present application. If these changes and modifications belong to the scope of the claims of this application and their equivalent technologies, the intent of this application also includes these changes and modifications.

Claims

A heating non-combustion cigarette, which is characterized by comprising a smoking section (1) and a filter (2) arranged along its length, and the smoking section (1) includes a columnar smoking material (14), surrounding The composite heating layer on the side of the smoking material (14); the composite heating layer includes an inner high infrared emissivity material layer (13) and an outer electromagnetic induction layer (12), the electromagnetic induction layer (12) can The alternating electromagnetic field is induced to generate heat, and the heat generated by the electromagnetic induction layer (12) can excite the high infrared emissivity material layer (13) to emit infrared rays.
The heating non-combustion cigarette according to claim 1, characterized in that the material of the electromagnetic induction layer (12) comprises a conductive material or a ferromagnetic material.
The heat-not-burn cigarette according to claim 1, wherein the material of the electromagnetic induction layer (12) includes: iron, cobalt, nickel, titanium, titanium carbide, titanium nitride, or ferrite. At least one item.
The heating non-combustion cigarette according to claim 1, wherein the infrared emissivity of the high infrared emissivity material layer (13) is between 0.85 and 0.98.
The heat-not-burn cigarette according to claim 1, wherein the material of the high infrared emissivity material layer (13) comprises: perovskite, silicon carbide, quartz, magnesia tourmaline, spodumene, calcite At least one of magnesite, dolomite, strontium, glauberite, alunite, and kyanite.
The heat-not-burn cigarette according to claim 5, characterized in that the material of the high infrared emissivity material layer (13) further includes a plasticizer.
The heat-not-burn cigarette according to claim 6, wherein the material of the plasticizer includes at least one of bentonite, kaolin, and sodium carboxymethyl cellulose.
The heating non-combustion cigarette according to claim 1, wherein the thickness of the composite heating layer is between 0.02 mm and 0.5 mm.
The heating non-combustion cigarette according to claim 1, characterized in that, the smoking section (1) further comprises a first wrapping layer (11) that wraps the outer side of the composite heating layer, and the heating non-combustion The cigarette also includes a second wrapping layer (3) wrapping the first wrapping layer (11) and the filter tip (2).
A method for preparing heat-not-burn cigarettes, which is characterized in that it comprises:

Preparation of smoking material;

A slurry containing a material with high infrared emissivity is covered on the electromagnetic induction material layer and dried, wherein the electromagnetic induction layer can induce alternating electromagnetic fields to generate heat, and the heat generated by the electromagnetic induction layer can excite the high Infrared emissivity material layer emits infrared;

Combine the first wrapping layer with the surface of the electromagnetic induction material layer facing away from the high infrared emissivity material, and use the surface of the high potential temperature emissivity material to wrap the smoking material to form a columnar shape The smoking section.
The preparation method according to claim 10, further comprising: wrapping the smoking section and the filter tip with a second wrapping layer to form a heat-not-burn cigarette.
The preparation method according to claim 10, further comprising: the step of preparing the slurry containing the high infrared emissivity material, comprising:

Grind high infrared emissivity materials into powder;

After adding a plasticizer to the powdery high infrared emissivity material and mixing it with water, it is ground into a slurry of the high infrared emissivity material.
The preparation method according to claim 12, wherein the material of the plasticizer comprises: at least one of bentonite, kaolin, and sodium carboxymethyl cellulose.
The preparation method according to claim 12, characterized in that, in the step of adding a plasticizer and water to the powdery high infrared emissivity material, the plasticizer and the powdery high infrared emissivity material are mixed. The mass ratio of water is between 0.5% and 12%, and the mass ratio of the added water and the powdered high-infrared emissivity material is between 12% and 18%.
The preparation method according to claim 10, wherein the process of covering the slurry containing the high infrared emissivity material on the electromagnetic induction material layer comprises any one of dipping, showering, sintering and spraying.