Phase-changeable electronic cigarette liquid and preparation method thereof

Abstract

The invention provides a phase-changeable electronic cigarette liquid and a preparation method thereof, and the phase-changeable electronic cigarette liquid is prepared from the following components in percentage by mass: 5-15% of tobacco extract, 10-19% of gel, 0.2-0.8% of sodium alginate, 5-15% of water, 20-25% of propylene glycol and the balance of glycerol. The gelling agent is carrageenan and / or low methyl pectin. The electronic cigarette liquid prepared from the raw materials of the types and the dosages can be kept in a solid state at the temperature lower than 70 DEG C, and storage and transportation are facilitated; the electronic cigarette liquid is sufficient in smoke amount, comfortable in smoke, almost free of residues and moderate in smoke strength. In addition, the raw material tobacco extract of the electronic cigarette liquid is the extract of the tobacco waste, so that the tobacco waste can be turned into wealth, and the economic added value of the tobacco waste is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic cigarette liquid, and in particular relates to a phase-changeable electronic cigarette liquid and a preparation method thereof. Background Art

[0002] Electronic cigarette oil, also known as electronic cigarette liquid, is an electronic atomizing liquid used with electronic cigarettes. It is heated by the electronic cigarette atomizer and can produce mist like cigarettes.

[0003] The electronic cigarette liquid on the market will cause problems such as liquid back-sucking, leakage, inconvenient storage and transportation, and rapid evaporation of aroma during use. In addition, when the liquid cigarette liquid is exhausted and needs to be replaced, it is easy to cause the liquid to be exposed, which is unsafe and unhygienic. Therefore, it is necessary to provide an electronic cigarette liquid that can not only ensure the smoking effect, but also solve the problems of leakage and back-sucking during the storage and transportation of electronic cigarettes. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a phase-changeable electronic cigarette liquid and a preparation method thereof, wherein the electronic cigarette liquid remains solid at room temperature and is convenient for storage and transportation.

[0005] The present invention provides a phase-changeable electronic cigarette liquid, wherein the raw materials for preparing the liquid include the following components by mass fraction:

[0006] 5-15% tobacco extract, 10-19% gelling agent, 0.2-0.8% sodium alginate, 5-15% water, 20-25% propylene glycol and the balance glycerol;

[0007] The gelling agent is carrageenan and / or low methoxyl pectin.

[0008] Preferably, the low methoxy pectin is pectin with an esterification degree lower than 42.9%.

[0009] Preferably, the raw material of the tobacco extract is tobacco waste.

[0010] Preferably, the tobacco extract is prepared according to the following method:

[0011] The tobacco waste material and the extractant are mixed, extracted, and filtered at a temperature greater than 80° C. to obtain the tobacco extract.

[0012] Preferably, the extractant is propylene glycol or water.

[0013] Preferably, the extraction temperature is 140-160° C., and the extraction time is 4.5-5.5 h.

[0014] Preferably, when the temperature is lower than 70°C, the electronic cigarette liquid is in solid state; when the temperature is raised to 70-90°C, it gradually becomes liquid; and when the temperature is further raised to 200-350°C, it is atomized into an aerosol.

[0015] The present invention provides a method for preparing the phase-changeable electronic cigarette liquid described in the above technical solution, comprising the following steps:

[0016] 1) Mix water, propylene glycol and glycerin, add gelling agent and sodium alginate, and stir evenly at 80-90° C. to obtain a mixture;

[0017] 2) Mixing the tobacco extract and the mixture, stirring evenly, filtering, and obtaining a phase-changeable electronic cigarette liquid.

[0018] Preferably, the temperature for uniform stirring in step 2) is 80-90° C. and the time is 55-65 min.

[0019] The present invention provides a phase-changeable electronic cigarette liquid, wherein the raw materials for preparation include the following components by mass fraction: 5-15% tobacco extract, 10-19% gelling agent, 0.2-0.8% sodium alginate, 5-15% water, 20-25% propylene glycol and the remainder glycerol; the gelling agent is carrageenan and / or low-methyl pectin. The electronic cigarette liquid prepared by the present invention using the above-mentioned types and amounts of raw materials can remain in a solid state at a temperature below 70°C, which is conducive to storage and transportation; the electronic cigarette liquid has sufficient smoke volume, the smoke is relatively comfortable, there is almost no residue, and the smoke is moderate. In addition, the raw tobacco extract of the electronic cigarette liquid is an extract of tobacco waste, which can turn tobacco waste into treasure and increase its economic added value. DETAILED DESCRIPTION

[0020] The present invention provides a phase-changeable electronic cigarette liquid, wherein the raw materials for preparing the liquid include the following components by mass fraction:

[0021] 5-15% tobacco extract, 10-19% gelling agent, 0.2-0.8% sodium alginate, 5-15% water, 20-25% propylene glycol and the balance glycerol;

[0022] The gelling agent is carrageenan and / or low methoxyl pectin.

[0023] The electronic cigarette liquid prepared by the present invention using the above-mentioned types and amounts of raw materials can remain in a solid state at a temperature below 70°C, which is conducive to storage and transportation; the electronic cigarette liquid has sufficient smoke volume, comfortable smoke, almost no residue, and moderate smoke strength. In addition, the raw material tobacco extract of the electronic cigarette liquid is an extract of tobacco waste, which can turn tobacco waste into treasure and increase its economic added value.

[0024] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include 5-15% tobacco extract; the raw materials of the tobacco extract are tobacco waste materials; the tobacco waste materials are factory waste materials generated in the process of producing cigarettes, including but not limited to tobacco leaves, tobacco dust, tobacco stems, etc.

[0025] In the present invention, the tobacco extract is prepared according to the following method:

[0026] The tobacco waste material and the extractant are mixed, extracted, and filtered at a temperature greater than 80° C. to obtain the tobacco extract.

[0027] The extractant is propylene glycol or water. The mass ratio of the tobacco waste material to the extractant is 1:9-11, preferably 1:9.5-10.5. The extraction temperature is 140-160°C, and the extraction time is 4.5-5.5h. After the extraction is completed, the present invention is filtered at a temperature greater than 80°C to obtain filtered clear night, which is the tobacco extract.

[0028] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include 10-19% gelling agent; the gelling agent is carrageenan and / or low-methoxyl pectin. The gelling agent in the present invention is a soluble macromolecular substance, which can increase the viscosity of the mixed liquid, dissolve at a higher temperature, and solidify at a lower temperature.

[0029] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include 0.2-0.8% sodium alginate;

[0030] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include 5-15% water.

[0031] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include 20-25% propylene glycol, preferably 1,2-propylene glycol.

[0032] The raw materials for preparing the phase-changeable electronic cigarette liquid provided by the present invention include residual glycerin.

[0033] In the present invention, water, propylene glycol and glycerol are all used as solvents, and propylene glycol and glycerol are simultaneously used as atomizers, which are atomized to form aerosols for consumers to inhale when inhaled at 200-350°C.

[0034] The electronic cigarette liquid provided by the present invention is a phase-changeable electronic cigarette liquid; when the temperature is lower than 70° C., the electronic cigarette liquid is solid; when the temperature is raised to 70-90° C., it gradually becomes liquid; and when the temperature is further raised to 200-350° C., it is atomized into an aerosol.

[0035] In a specific embodiment of the present invention, the phase-changeable electronic cigarette liquid, in terms of mass fraction, is prepared from raw materials including the following components:

[0036] 7% tobacco extract, 12% gelling agent, 0.5% sodium alginate, 6% water, 25% 1,2-propylene glycol and the balance glycerol, wherein the gelling agent is low methoxyl pectin.

[0037] Or it includes 15% tobacco extract, 18% gelling agent, 0.6% sodium alginate, 12% water, 21% 1,2-propylene glycol and the balance glycerol, wherein the gelling agent is carrageenan.

[0038] The present invention also provides a method for preparing the phase-changeable electronic cigarette liquid described in the above technical solution, comprising the following steps:

[0039] 1) Mix water, propylene glycol and glycerin, add gelling agent and sodium alginate, and stir evenly at 80-90° C. to obtain a mixture;

[0040] 2) Mixing the tobacco extract and the mixture, stirring evenly, filtering, and obtaining a phase-changeable electronic cigarette liquid.

[0041] In the present invention, water, propylene glycol and glycerin are preferably mixed evenly, then the gelling agent and sodium alginate are slowly added, and the mixture is stirred evenly at 80-90° C. to obtain a mixture.

[0042] After obtaining the mixture, the present invention mixes the tobacco extract with the mixture, stirs evenly, and filters to obtain a phase-changeable electronic cigarette liquid. After the present invention mixes the tobacco extract with the mixture, the temperature is maintained at 80 to 90° C., the stirring time is 55 to 65 minutes, and the filtered liquid is obtained, and the filtered liquid is naturally cooled to room temperature to obtain a phase-changeable electronic cigarette liquid.

[0043] The present invention adds the phase-changeable electronic cigarette liquid into an electronic cigarette for inhalation.

[0044] In order to further illustrate the present invention, a phase-changeable electronic cigarette liquid and a preparation method thereof provided by the present invention are described in detail below in combination with embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0045] Example 1

[0046] The raw material composition of the electronic cigarette liquid is: 7% tobacco extract, 12% gelling agent, 0.5% sodium alginate, 6% water, 25% 1,2-propylene glycol, and the rest is glycerol; the gelling agent is low-methyl pectin.

[0047] The preparation method of the tobacco extract comprises the following steps: adding 100 g of tobacco waste into 1000 g of propylene glycol, heating to 150° C. for extraction for 5 h while stirring continuously, and then filtering at a temperature greater than 80° C. to obtain a filtered clear liquid, which is the tobacco extract.

[0048] Preparation method of phase-changeable electronic cigarette liquid:

[0049] S1: Mix water, propylene glycol and glycerin evenly, then slowly add the gelling agent and sodium alginate, and stir at 80-90° C. to obtain a mixture.

[0050] S2: Add the tobacco extract to the S1 mixture, maintain the temperature at 80-90°C and heat and mix for 1 hour, then filter to obtain the filtered clear liquid, and naturally cool to room temperature to obtain the phase-changeable electronic cigarette liquid.

[0051] Example 2

[0052] The raw material composition of the electronic cigarette liquid is: 15% tobacco extract, 18% gelling agent, 0.6% sodium alginate, 12% water, 21% 1,2-propylene glycol, and the rest is glycerol; the gelling agent is carrageenan.

[0053] The preparation method of the tobacco extract comprises the following steps: adding 100 g of tobacco waste into 1000 g of water, heating to 150° C. for extraction for 5 h while stirring continuously, and then filtering at a temperature greater than 80° C. to obtain a filtered clear liquid, which is the tobacco extract.

[0054] Preparation method of phase-changeable electronic cigarette liquid:

[0055] S1: Mix water, propylene glycol and glycerin evenly, then slowly add the gelling agent and sodium alginate, and stir at 80-90° C. to obtain a mixture.

[0056] S2: Add the tobacco extract to the S1 mixture, maintain the temperature at 80-90°C and heat and mix for 1 hour, then filter to obtain the filtered clear liquid, and naturally cool to room temperature to obtain the phase-changeable electronic cigarette liquid.

[0057] evaluate:

[0058] The phase-changeable electronic cigarette liquid prepared in Examples 1 to 2 was added to an electronic cigarette, and samples were provided to 7 smoking evaluation experts for evaluation. The maximum atomization temperature of the electronic cigarette was 320° C. The results are as follows:

[0059] Table 1 Evaluation results

[0060] Sample Smoke characteristics Example 1 The smoke volume is sufficient, the smoke is comfortable, there is almost no residue, and the smoke strength is moderate. Example 2 The smoke volume is large, the smoke is comfortable, there is no residue, and the smoke strength is moderate.

[0061] It can be seen from the above embodiments that the present invention provides a phase-changeable electronic cigarette liquid, and the raw materials for preparation include the following components by mass fraction: 5-15% tobacco extract, 10-19% gelling agent, 0.2-0.8% sodium alginate, 5-15% water, 20-25% propylene glycol and the balance glycerol; the gelling agent is carrageenan and / or low-methyl pectin. The electronic cigarette liquid prepared by the present invention using the above-mentioned types and amounts of raw materials can remain in a solid state at a temperature below 70°C, which is conducive to storage and transportation; the electronic cigarette liquid has sufficient smoke volume, the smoke is more comfortable, there is almost no residue, and the smoke is moderate. In addition, the raw tobacco extract of the electronic cigarette liquid is an extract of tobacco waste, which can turn tobacco waste into treasure and increase its economic added value.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A phase-changeable electronic cigarette liquid, wherein the raw materials for preparing the liquid include the following components by mass fraction: 5-15% tobacco extract, 10-19% gelling agent, 0.2-0.8% sodium alginate, 5-15% water, 20-25% propylene glycol and the balance glycerol; The gelling agent is carrageenan and / or low methoxyl pectin.

2. The phase-changeable electronic cigarette liquid according to claim 1, characterized in that: The low methoxyl pectin is pectin with an esterification degree lower than 42.9%.

3. The phase-changeable electronic cigarette liquid according to claim 1, characterized in that: The raw material of the tobacco extract is tobacco waste.

4. The phase-changeable electronic cigarette liquid according to claim 3, characterized in that: The tobacco extract is prepared according to the following method: The tobacco waste material and the extractant are mixed, extracted, and filtered at a temperature greater than 80° C. to obtain the tobacco extract.

5. The phase-changeable electronic cigarette liquid according to claim 4, characterized in that: The extractant is propylene glycol or water.

6. The phase-changeable electronic cigarette liquid according to claim 4, characterized in that: The extraction temperature is 140-160° C., and the extraction time is 4.5-5.5 hours.

7. The phase-changeable electronic cigarette liquid according to claim 1, characterized in that: When the temperature is lower than 70°C, the electronic cigarette liquid is in solid state; when the temperature rises to 70-90°C, it gradually becomes liquid; and when the temperature continues to rise to 200-350°C, it is atomized into an aerosol.

8. A method for preparing the phase-changeable electronic cigarette liquid according to any one of claims 1 to 7, comprising the following steps: 1) Mix water, 1,2-propylene glycol and glycerol, add a gelling agent and sodium alginate, and stir evenly at 80-90° C. to obtain a mixture; 2) Mixing the tobacco extract and the mixture, stirring evenly, filtering, and obtaining a phase-changeable electronic cigarette liquid.

9. The preparation method according to claim 8, characterized in that: The temperature for uniform stirring in step 2) is 80-90° C. and the time is 55-65 min.