阅读说明：本技术 一种提升加热卷烟抽吸稳定性和热利用率的方法 (Method for improving smoking stability and heat utilization rate of heated cigarette ) 是由 汤建国 张柯 雷萍 邓楠 杨文� 张明建 许晓黎 王乐 冒德寿 龚为民 吴俊� 于 2020-05-19 设计创作，主要内容包括：本发明属于新型加热卷烟领域,特别涉及一种提升加热卷烟抽吸稳定性和热利用率的方法。该方法使用如下操作制备所述卷烟,所述卷烟包括发烟介质段,所述发烟介质段由复合卷烟纸(2)包裹发烟介质棒(1)制备而成,所述复合卷烟纸(2)的制备方法如下：其由第一卷烟纸层(2a)、石墨纸层(2b)和涂布层(2c)通过粘合剂层(2m)粘合而成,所述涂布层(2c)与所述发烟介质棒(1)相接触。本发明有效提高了抽吸过程物质释放的均匀性,抽吸稳定性更好,可抽吸多达12口烟雾量无明显降低。(The invention belongs to the field of novel heated cigarettes, and particularly relates to a method for improving the smoking stability and the heat utilization rate of the heated cigarettes. The method comprises the following steps of preparing the cigarette, wherein the cigarette comprises a smoking medium section, the smoking medium section is prepared by wrapping a smoking medium rod (1) with a composite cigarette paper (2), and the preparation method of the composite cigarette paper (2) comprises the following steps: the cigarette is formed by bonding a first cigarette paper layer (2a), a graphite paper layer (2b) and a coating layer (2c) through an adhesive layer (2m), wherein the coating layer (2c) is in contact with a smoking medium rod (1). The invention effectively improves the uniformity of the material release in the suction process, has better suction stability, and can suck up 12 mouths of smoke without obvious reduction.)

1. A method of improving the smoking stability and heat utilization efficiency of a heated cigarette, wherein the cigarette is prepared by the operations of: the cigarette comprises a smoking medium section, the smoking medium section is prepared by wrapping a smoking medium rod (1) with a composite cigarette paper (2), and the preparation method of the composite cigarette paper (2) comprises the following steps: the cigarette is formed by bonding a first cigarette paper layer (2a), a graphite paper layer (2b) and a coating layer (2c) through an adhesive layer (2m), wherein the coating layer (2c) is in contact with a smoking medium rod (1).

2. Method according to claim 1, characterized in that the thickness of the layer (2b) of graphite paper is 40-100 μm.

3. The method according to claim 1, wherein the coating layer (2c) is made by coating a second cigarette paper layer with a desired additive.

4. The method of claim 3, wherein the additive comprises a smoke agent, and/or a fragrance.

5. The method according to claim 3 wherein the second cigarette paper layer is cigarette paper having a grammage of 20 to 40 grams per square meter and an air permeability of 30 to 1000 CU.

Technical Field

The invention belongs to the field of novel heated cigarettes, and particularly relates to a method for improving the smoking stability and the heat utilization rate of the heated cigarettes.

Background

In recent years, with the enhancement of public awareness of cigarette harmfulness and the increase of government regulation of cigarettes, the international traditional cigarette market is gradually sliding down, and meanwhile, the new tobacco products are rapidly growing in a reverse manner. The sales volume of the heated cigarettes is increased year by year, and particularly, the electrically heated type heated cigarettes are popular in the market, and the technology maturity and the smoking experience of the electrically heated type heated cigarettes are far ahead of other novel tobacco products.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

1. during the heating and smoking process of the electrically heated cigarette, the substance released by the smoking medium may be greatly attenuated or fluctuated as smoking progresses. The general method is to carry out certain adjustment by adjusting the heat release curve of a heat source or changing the material of the smoking medium, but the condition of the smoking medium release fluctuation in the smoking process cannot be effectively changed.

2. At present, the temperature for heating the non-combustible cigarette is lower in order to ensure that the tobacco is not combusted, and the temperature is about 300 ℃, so that the release of substances required in the smoking medium for heating the cigarette is limited, and the release efficiency is lower. In order to improve the release amount of substances in the smoking medium, the heating temperature is generally improved, and at present, the heating temperature is improved to about 350 ℃, so that the temperature resistance of the cigarette paper wrapping the smoking medium is higher, otherwise, the cigarette paper is easy to carbonize and break, and the smoking medium is difficult to take out of a smoking set after smoking, so that the smoking experience is influenced.

3. In addition, the improvement of the utilization rate of heat is also the direction of continuous research on heating cigarettes.

Disclosure of Invention

The present invention has been made to solve the above problems.

The invention provides a method for improving the smoking stability and the heat utilization rate of a heated cigarette, which comprises the following steps of: the cigarette comprises a smoking medium section, the smoking medium section is prepared by wrapping a smoking medium rod 1 with a composite cigarette paper 2, and the preparation method of the composite cigarette paper 2 comprises the following steps: the paper-based smoking medium rod is formed by bonding a first smoking paper layer 2a, a graphite paper layer 2b and a coating layer 2c through an adhesive layer 2m, wherein the coating layer 2c is in contact with the smoking medium rod 1.

Preferably, the thickness of the graphite paper layer 2b is 40-100 μm.

Preferably, the coating layer 2c is made by coating the second cigarette paper layer with the desired additives.

Preferably, the additive comprises a smoke agent, and/or a flavour.

Preferably, the second cigarette paper layer is cigarette paper with the gram weight of 20-40g per square meter and the air permeability of 30-1000 CU.

The technical scheme can be freely combined on the premise of no contradiction.

The invention has the following beneficial effects:

1. the current method for solving the problem of fluctuation of the smoking medium release process in the smoking process is to change the structure of the cigarette body in ways of adjusting the heat release curve of a heat source or changing the material of the smoking medium and the like. The invention develops a new method, the composite cigarette paper 2 wrapping the smoking medium is designed into a three-layer structure formed by bonding a first cigarette paper layer 2a, a graphite paper layer 2b and a coating layer 2c, and the coating layer 2c is prepared by coating required additives on a second cigarette paper layer, so that the uniformity of material release in the smoking process is effectively improved, the smoking stability is better, and the amount of smoke which can be smoked by up to 12 mouths is not obviously reduced.

2. The cigarette can improve the temperature resistance of the cigarette paper, and because the graphite has the high temperature resistance, the temperature resistance of the cigarette paper can reach 400-500 ℃ when the graphite is used in the air, and the temperature resistance of the graphite can reach 2500 ℃ when the graphite is used in vacuum or inert gas, the temperature resistance of the whole cigarette paper can be improved after the graphite paper is used in heating the cigarette, and the use requirement can be met.

3. Wrapping up tobacco core substrate after using aluminium foil and paper complex at present, making core substrate dry distillation effect better, the heat utilization efficiency promotes, and more even effectual being heated of core substrate, the release effect is better. However, the aluminum foil is compounded with the cigarette paper, so that certain requirements are imposed on the thickness of the aluminum foil, the use amount of the aluminum foil is increased, and the production cost is increased; meanwhile, the aluminum foil and the cigarette paper are combined to have thicker total thickness and higher gram weight, and the machine has poorer adaptability and higher waste when in use. The cigarette uses graphite paper to replace aluminum foil, and the graphite is lighter than the aluminum foil, so that the adaptability of the cigarette on a machine is good when the cigarette is used.

Drawings

FIG. 1 is a schematic structural view of a heated cigarette A prepared in example 1.

Figure 2 is a schematic diagram of the structure of the composite cigarette paper of the heated cigarette a prepared in example 1.

FIG. 3 is a line graph showing the results of smoking amount of two cigarettes of example 2.

List of reference numerals:

1. the cigarette comprises a smoking medium rod, 2 composite cigarette paper, 3 tipping paper, 4 a filter stick supporting section, 5 a filter stick cooling section, 6 a filter stick filtering section, 2a first cigarette paper layer, 2b a graphite paper layer, 2c a coating layer, 2m and an adhesive layer.

Detailed Description

The present invention will be further described with reference to the following embodiments.

Example 1

A method of improving the smoking stability of a heated cigarette, the cigarette being prepared using the operations of: the cigarette comprises a smoking medium section, the smoking medium section is prepared by wrapping a smoking medium rod 1 with a composite cigarette paper 2, and the preparation method of the composite cigarette paper 2 comprises the following steps: the paper-based smoking medium rod is formed by bonding a first smoking paper layer 2a, a graphite paper layer 2b and a coating layer 2c through an adhesive layer 2m, wherein the coating layer 2c is in contact with the smoking medium rod 1.

The thickness of the graphite paper layer 2b is 55 μm.

The second cigarette paper layer used in the coating layer 2c is cigarette paper with the gram weight of 40g per square meter and the air permeability of 1000CU, and the surface of the coating layer 2c is coated with additives, wherein the additives comprise 30 wt% of smoke agent, 20 wt% of essence and 50 wt% of gel. The gel only acts to absorb the dispersed smoke agent and flavour.

The smoking medium section prepared by the method is jointed with tipping paper 3, a filter stick supporting section 4, a filter stick cooling section 5 and a filter stick filtering section 6, and the heated cigarette is manufactured according to the conventional cigarette preparation process to obtain the heated cigarette A.

Example 2

The same smoking media was used to make a heated cigarette B of the same construction, differing from the heated cigarette a only in that the composite wrapper 2 of example 1 was replaced by plain wrapper. The smoking test was conducted on heated cigarette A, B, and the results of the amount of smoke during smoking of both cigarettes are shown in FIG. 3.

FIG. 3 shows: when the number of the suction openings is 7-12, the relative smoke quantity of the heated cigarette A can still be kept high, and the relative smoke quantity of the heated cigarette B is obviously reduced. Therefore, compared with the common cigarette, the cigarette prepared by the method has the advantages that the release of substances required in the smoking process is more uniform, the smoking stability is better, and the smoking amount can be up to 12 mouths without obvious reduction.

Example 3

The smoking test of the heated cigarette A, B of example 2 shows that the nicotine release amount is shown in table 1, and it can be seen from the table that the cigarette paper using the composite cigarette paper 2 of example 1 can increase the nicotine release amount of the tobacco core substrate by about 31.0%, that is, can increase the utilization rate of the tobacco core substrate.

TABLE 1 Effect of different cigarette papers on nicotine Release

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.