CN104939298A - Atomizing agent for electronic cigarette and electronic cigarette liquid - Google Patents

Abstract

The invention relates to an atomizing agent for electronic cigarettes and an electronic cigarette liquid, in particular to an atomizing solvent for electronic cigarettes without obvious sweetness and greasy feeling, belonging to the field of new tobacco products. The technical solution of the present invention is to provide an atomizer for electronic cigarettes, the atomizer includes a mist forming component, a smoke thickening component and a viscosity regulating component; the viscosity regulating component includes propylene carbonate, and propylene carbonate accounts for the 10-40% of the total weight of the agent. The invention can make the atomizing agent have no obvious sweet and greasy feeling; can ensure the thick and full feeling of the smoke; can greatly reduce the viscosity of the atomizing agent, not only improve the fluidity and instant atomization ability of the atomizing agent, but also ensure a large amount of smoke , and can avoid the influence of excessive use of water and/or ethanol on the suction effect and safety. The atomization solvent of the present invention can be widely used in the preparation of electronic cigarette liquid.

Description

A kind of atomizing agent for electronic cigarette and electronic cigarette liquid

technical field

The invention relates to an atomizer for electronic cigarettes and an electronic cigarette liquid, in particular to an atomizer for electronic cigarettes without obvious sweetness and greasy feeling, and belongs to the field of new tobacco products.

Background technique

The electronic cigarette (CN03212882.7), which was first invented by Han Li in China, is to use electronic technology to vaporize the atomizer in the smoke oil ("smoke oil" also known as "smoke liquid") into a mist and simultaneously bring out alkaloids, So that the smoker has a device similar to the physiological satisfaction of traditional cigarettes. With the development of technology, in addition to atomizers and alkaloids, many flavor components have been added to e-liquid; antioxidants and preservatives are even added to some e-liquid.

Electronic cigarettes are more and more favored by consumers because they do not burn at high temperatures and reduce many harmful substances. According to statistics, the world's e-cigarette market has shown rapid growth in recent years. The total global sales increased from 910 million US dollars in 2010 to 3.5 billion US dollars in 2013, with an average annual growth rate of about 40%. According to the International Tobacco Network It is estimated that in 2014 the scale will reach 7 billion US dollars (about 5 billion euros).

The atomizer in e-cigarette oil can directly affect the taste of smoking, the amount of smoke and the style of smoke, so the composition and ratio of the atomizer are very critical. Traditional atomizers are generally composed of propylene glycol, glycerin, water, ethanol, etc. Zhao Haoda et al. (The preparation of harmless e-cigarette liquid "Chemical Engineer" 2012 No. 11, p58.) pointed out that when the ratio of propylene glycol and water in the atomizer is 9:1, the smoke generation is better. (publication (announcement) number: CN104585875A) disclosed patent also uses up to 90% propylene glycol. Propylene glycol is chosen as the main fog-forming component because of its low boiling point, easy vaporization in electronic cigarettes, and the vaporized smoke has better diffusivity and filling in the mouth and nasal cavity; but when it is used in large amounts, it is obviously warm and sweet The greasy feeling will affect the smoking experience, causing some consumers to dislike it. If the amount of glycerin in the atomizer is excessively increased, it will easily increase the dryness of the e-cigarette smoke. In addition, if the ethanol content in the atomizer is too high, the smoke will have an obvious alcohol taste, making it inconvenient to use e-cigarettes while driving or in other places; The sound of "papa". The above analysis shows that the content of propylene glycol, glycerin, water, ethanol and other components in the atomizer must be appropriate, so that the e-cigarette can have a good sensory quality when smoking.

For overcoming the defective of traditional atomizing agent, someone has carried out research on this. For example, Zhu Qi of Henan China Tobacco Industry Co., Ltd., etc. discloses an electronic smog agent (publication number CN104473323A). It includes esters, water, propylene glycol and/or glycerin; the esters are monobasic esters (such as benzyl benzoate), dibasic esters (such as diethyl malate, diethyl succinate ), tribasic esters (such as glycerol triacetate) in one or more mixtures in any proportion. It uses the unique taste characteristics of large molecular weight esters, screens and optimizes its combination ratio, and uses it as an electronic atomizer, not only as an electronic atomizer alone, but also in combination with existing atomizers With the use of. After experimental evaluation and smoking, this electronic cigarette atomizer has a good taste and can obviously overcome the sweet and greasy feeling caused by the large amount of glycerin and propylene glycol used in existing atomizers. As another example, Chu Guohai of Zhejiang China Tobacco Industry Co., Ltd. disclosed an e-cigarette liquid solvent using polyglycerol and the e-cigarette liquid and e-cigarette prepared therewith (publication number CN104432489A). It is prepared by using polyglycerol substances such as diglycerol, triglycerol, tetraglycerol, pentaglycerol and hexaglycerol in different proportions as solvents. It can relieve dry mouth and nose and irritating cough of smokers, remove the warm and sweet smell in the smoke at the same time, and improve the quality of smoking. All components are edible-grade raw materials, which are safe and harmless to the human body.

In this improved atomizer of China Tobacco Henan, although the sour and bitter taste of the added reagents are used to relieve the sweetness of propylene glycol, the benzyl benzoate (boiling point 324°C, 101kPa), diethyl malate (Boiling point 254°C, 101kPa), triacetin (boiling point 258-259°C, 101kPa, irritating) have boiling points (far) higher than propylene glycol (boiling point 188.2°C, 101kPa), so the composition of this atomizer The fogging ability will be affected, which does not match well with the heating temperature of commonly used e-cigarette heating wires; the above patent of China Tobacco Zhejiang uses polyglycerol instead of propylene glycol and glycerin. Although the sweetness and dryness are reduced, there are also solvents The high boiling point (such as the boiling point of diglycerin when the pressure is reduced to 2.0kPa is 265-270 ° C) is not high enough to form a fog, and the amount of smoke is not large. From this point of view, in the formulation of electronic atomizers, it is necessary to further scientifically select a solvent combination that is close to the boiling point of propylene glycol, has a large amount of fog, and has no obvious sweetness, dryness, and other negative effects to replace the fog that is mainly based on propylene glycol alone. Agents appear to be particularly necessary.

Contents of the invention

The technical problem solved by the present invention is to reduce the sweetness and greasy feeling of the electronic cigarette atomizer, and at the same time ensure that it has a large and thick smoke volume, better taste quality and safety when inhaled.

The technical solution of the present invention is to provide an atomizer for electronic cigarettes, the atomizer includes a mist forming component, a smoke thickening component and a viscosity regulating component; the viscosity regulating component includes propylene carbonate, and propylene carbonate accounts for the 10-40% of the total weight of the agent.

Further, the fog-forming component accounts for 30-70% of the total mass of the atomizer, and the smoke thickening component accounts for 10-35% of the total mass of the atomizer.

Further, the fog-forming component accounts for 40-60% of the total mass of the atomizer, and the smoke thickening component accounts for 15-30% of the total mass of the atomizer.

Further, the viscosity adjusting component also includes 0.1-5% ethanol accounting for the total mass of the atomizing agent.

Further, the viscosity adjusting component also includes 0.1-10% of water accounting for the total mass of the atomizing agent.

Further, the propylene carbonate accounts for 20-30% of the total mass of the atomizer.

Further, the fog-forming components are mainly 1,3-butanediol and propylene glycol, wherein the mass of 1,3-butanediol is more than twice the mass of propylene glycol.

Further, the 1,3-butanediol and propylene glycol respectively account for 35-45% and 5-15% of the total mass of the atomizer.

Further, the smoke thickening component comprises 10-30% of glycerin and 0.1-5% of glyceride in the total mass of the atomizer.

The present invention further provides an electronic cigarette liquid, including tobacco extract, alkaloid and essence, and the above-mentioned atomizing agent.

After the components of the atomizer are weighed in proportion, they are thoroughly mixed and left to stand to obtain a clear and transparent atomizer solution. After the atomizer is prepared, a suitable proportion of alkaloids, tobacco extracts, flavors and other substances can be added to it, and the e-cigarette oil can be obtained after mixing. Of course, the above-mentioned components of the atomizer, tobacco extract, alkaloid, and flavor components are weighed in proportion and can be directly mixed into e-cigarette oil, and it is not mandatory to prepare the atomizer first.

In order to better reflect the innovation of the present invention, the present invention classifies the components in commonly used atomization solvents for electronic cigarettes. Commonly used e-vapor components are propylene glycol, glycerin, ethanol and water. In addition to functioning as a solvent, the above-mentioned components have other functions. The main function of propylene glycol is to generate smoke, so it can be defined as a fog-forming component. The main function of glycerin is to make the smoke thick and full, so it can be defined as the thick component of smoke. The main function of ethanol and water is to adjust viscosity, which can be defined as viscosity adjusting components. In the present invention, electronic cigarette liquid is also referred to as electronic cigarette oil and electronic cigarette oil.

The present invention uses propylene carbonate as a viscosity adjusting component to adjust the viscosity of the atomizer. Simple ester compounds (such as ethyl acetate) mostly have fragrance; other common solvents such as pentane, petroleum ether, methylene chloride, chloroform, methanol, etc., although they have good fluidity and low boiling point, they generally It is both toxic and immiscible with aroma substances in e-liquid and tobacco extracts, so it cannot be used in e-cigarettes. After repeated searches for literature and multiple tests, it was found that propylene carbonate has no obvious peculiar smell and significant sweetness (this is better than sorbitol and xylitol), and it is safe (low toxic solvent, which is harmful to rats after oral administration). The toxicity is slightly better than propylene glycol), and it has good solubility for components in e-cigarette liquids such as tobacco extracts, alkaloids and flavors; its own viscosity is small, and it can reduce the high viscosity of glycerin and propylene glycol in the atomizer The viscosity of the substance improves the fluidity of the e-liquid, so that the e-liquid can be replenished in time near the heating wire to be heated, thereby increasing the continuous fogging ability of the e-liquid. At the same time, using propylene carbonate to largely replace water and ethanol can reduce the alcohol smell in e-cigarette smoke and prevent the "beep" sound that occurs when smoking.

Beneficial effects of the present invention: First, the present invention uses a large amount of 1,3-butanediol (boiling point of 207.5° C., dosage: 100% of the atomizing agent The total mass is 35-45%), the consumption of propylene glycol is reduced from the traditional high consumption (generally 50-90%) to 5-15%, and the consumption ratio of 1,3-butanediol and propylene glycol is at least greater than 2. Due to the reduction in dosage, the warm, sweet and greasy feeling of propylene glycol is significantly reduced; at the same time, due to the slightly bitter almond flavor of 1,3-butanediol smoke, this also suppresses the sweet and greasy feeling of propylene glycol to a certain extent. The second is that the present invention uses propylene carbonate accounting for 20-30% of the total mass of the atomizer to replace the widely used viscosity-adjusting substance ethanol and/or water, which can greatly reduce the viscosity of the atomizer on the one hand and ensure the Fluidity, instant atomization ability and sufficient amount of smoke; on the other hand, it can avoid the effect of excessive use of water and/or ethanol on the suction effect (such as the sound of "beep" when the water is used too much) and Safety (excessive ethanol consumption, easy to appear alcohol smell hinders driving, etc.). The 3rd, the present invention has used a certain amount of smog thick component glycerin and monobasic, dibasic acetate, because the molecular weight of glycerol and acetic acid ester is greater than propylene glycol, has avoided only using propylene glycol to make the smoke diffusion that atomization agent brings The fast and hollow feeling in the mouth and nasal cavity increases the thick and fullness of the smoke, thus further improving the taste of electronic cigarettes.

Description of drawings

Figure 1 shows the effect of the amount of each substance in Example 1 on the sweetness and greasy feeling of the electronic cigarette.

Figure 2 shows the effect of the amount of each substance in Example 1 on the amount of smoke in the electronic cigarette.

Figure 3 shows the effect of the amount of each substance in Example 1 on the amount of smoke in the electronic cigarette.

Figure 4 shows the effect of the amount of each substance in Example 1 on the miscellaneous gas of electronic cigarette smoke.

Figure 5 shows the effect of the amount of each substance in Example 1 on the cleanliness and comfort of e-cigarette smoke.

Figure 6 shows the effect of the amount of each substance in Example 1 on the number of particles in the electronic cigarette smoke.

Detailed ways

The following examples are intended to further illustrate the content of the present invention, rather than limit the protection scope of the claims of the present invention.

Embodiment 1: This embodiment is a group of orthogonal experiments. Objective: To use the empirical method to study the effects of different dosages of various components on the sweetness and greasy feeling of electronic cigarette vape, the amount of smoke and other sensory qualities. Method: Orthogonal design using L ₉ (3 ⁴ ) (see Table 1 for details of the orthogonal design table). Under the condition of a fixed water consumption of 3%, the strength of the four factors of 1,3-butanediol, propylene glycol, glycerin (ie, glycerol) and propylene carbonate in different dosage levels on the sweetness and greasy feeling of e-cigarette smoke was studied , the amount of smoke and other sensory qualities.

Table 1 Orthogonal design table for the influence of different dosages of ingredients on the sensory quality of e-cigarette smoke

According to the dosage mentioned in Table 1, prepare 9 treatment mother solutions, add 0.8ml of each tube into the electronic cigarette atomizer; then invite 9 persons with sensory evaluation qualifications to evaluate the smoke, and sequentially evaluate the sweetness and greasy feeling of the smoke , the amount of smoke, the thickness of the smoke, the cleanliness of the mouth and the miscellaneous gas index. At the same time, an instrument is used to measure the number of particles in the electronic cigarette smoke. Experiments were repeated three times. After the evaluation and absorption, the results were statistically analyzed using DPS14.0 software. The analysis results are as follows, wherein, in Figures 1 to 6, 1, 2, and 3 of each component on the abscissa represent the level 1, level 2, and level 3 of each corresponding component in Table 1.

1.1 Sweet and greasy feeling

Figure 1 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are 3, 1, 1 and 2, respectively, the e-cigarette smoke has the highest sweetness score and the lightest sweetness feeling .

1.2 The amount of smoke

Figure 2 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are three, two, three and two, respectively, the amount of e-cigarette smoke is the largest.

1.3 Smoke thickness

Figure 3 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are 3, 2, 3 and 3 respectively, the thickness of the e-cigarette smoke is the best.

1.4 miscellaneous gas

Figure 4 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are 2, 3, 1 and 2 respectively, the miscellaneous gas in the electronic cigarette smoke is the lightest.

1.5 clean and comfortable

Figure 5 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are three, two, one and one respectively, the cleanliness and comfort of the e-cigarette smoke is the best.

1.6 Number of smoke particles

Figure 6 shows that when the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are 3, 3, 3 and 2, respectively, the number of atomized particles in the e-cigarette smoke is the largest.

1.7 Optimal solution

Based on the comprehensive DPS14.0 software, the optimal scheme of the above six indicators is given (detailed results are omitted), and the dosage levels of 1,3-butanediol, propylene glycol, glycerin and propylene carbonate in the mother liquor are respectively three and two 1, 2 and 2 (that is, the dosage in the mother liquor is 3 grams, 0.5 grams, 1 gram and 1.5 grams respectively), the comprehensive sensory quality of electronic cigarette smoke is the best.

1.8 Result Verification

Under the condition of continuing to fix the mass percentage of water at 3%, two experimental formulations were made according to the dosage described in Table 2 to continue to verify the above optimal solution.

Table 2 Experiments on the formulation of e-cigarette vaporizers without obvious sweetness and greasy feeling

According to the evaluation, the sweetness and greasy feeling of No. 10 sample is not obvious, the smoke size is medium to slightly large, the smoke is thick and the mouth is clean and comfortable, but the smell of 1,3-butanediol is slightly obvious, and the smoking is easy medium. The overall feeling of No. 11 sample is slightly worse than that of No. 10 sample, mainly because the smoke is slightly light and the sweetness is slightly obvious. Overall, the above-mentioned optimal scheme is basically feasible, achieves the expected experimental purpose, and provides useful guidance for continuing research.

Embodiment 2: This embodiment is a group of single factor experiments. The optimization experiments were mainly continued on the basis of Example 1 (the processing sample numbers were 12-20). See Table 3 and Table 3 (continued) for the mass percentages of the substances used in each treatment of the e-cigarette agent and its main sensory quality defects. The overall sensory quality of the effect is good.

Table 3 Mass percentage content of each component of electronic atomization agent

Table 3 (continued) Main sensory quality evaluation table of e-cigarette smoke

Embodiment 3: Test the sensory quality under the condition of no water and no ethanol.

Weigh and mix 1,3-butanediol, propylene glycol, glycerin and propylene carbonate according to the mass percentages of 37%, 15%, 18% and 30% in sequence to form an aerosol, which is evaluated for inhalation.

Smoking evaluation found that in the case of anhydrous and ethanol-free viscosity-adjusting ingredients, the amount of smoke in the oral cavity meets the requirements, but the filling of the smoke is not good when exhaled from the nasal cavity. Compared with the samples added with water and/or ethanol, the mouth is not comfortable and clean enough, with a slight astringent feeling. Therefore, it is preferable to add appropriate amount of water and/or ethanol to the viscosity adjusting component in addition to propylene carbonate.

Example 4: Test the e-liquid prepared with this atomizer and its effects.

Aerosol preparation: Weigh and mix 1,3-butanediol, propylene glycol, glycerin, propylene carbonate, water, and ethanol in sequence according to the dosages of 37%, 12%, 18%, 23%, 4%, and 5%. And let it stand still to get the atomizer.

E-liquid preparation: Add 5% of tobacco extract, 2% of alkaloid and 1% of tobacco flavor to the above atomizer, mix well, and add electrons in an amount of 600 microliters per stick Smoking is carried out in an aerosolizer, and the number of particles in the aerosol is measured.

The results show that the e-liquid formulated with the above-mentioned atomizer is transparent and clear, with good uniformity; there is no obvious sweet and greasy feeling when smoking, the amount of smoke is large, the aroma is transparent, there is no obvious miscellaneous gas, and the mouth is comfortable and clean. The number of smoke particles measured in the 5 parallel samples were: 4062903×10 ³ , 409796×10 ³ , 4085721×10 ³ , 4076899×10 ³ , 4084238×10 ³ , significantly higher than the 9 treatments in Example 1 the number of particles.

Claims (10)

1. an electronic cigarette Alevaire, is characterized in that, this Alevaire comprises mist formation composition, the abundant composition of smog and viscosity modifying ingredients; Described viscosity modifying ingredients comprises propene carbonate, and propene carbonate accounts for 10 ~ 40% of Alevaire gross mass.

2. electronic cigarette Alevaire as claimed in claim 1, it is characterized in that, described mist formation composition accounts for 30 ~ 70% of Alevaire gross mass, and the abundant composition of smog accounts for 10 ~ 35% of Alevaire gross mass.

3. Alevaire as claimed in claim 2, it is characterized in that, described mist formation composition accounts for 40 ~ 60% of Alevaire gross mass, and the abundant composition of smog accounts for 15 ~ 30% of Alevaire gross mass.

4. Alevaire as claimed in claim 1 or 2, it is characterized in that, described viscosity modifying ingredients also comprises the ethanol accounting for Alevaire gross mass 0.1 ~ 5%.

5. Alevaire as claimed in claim 1 or 2, it is characterized in that, described viscosity modifying ingredients also comprises the water accounting for Alevaire gross mass 0.1 ~ 10%.

6. Alevaire as claimed in claim 1 or 2, it is characterized in that, described propene carbonate accounts for 20 ~ 30% of Alevaire gross mass.

7. Alevaire as claimed in claim 1 or 2, it is characterized in that, described mist formation composition is mainly 1,3-BDO and propane diols, and wherein, the quality of 1,3-BDO is more than the twice of propane diols quality.

8. Alevaire as claimed in claim 7, it is characterized in that, described 1,3-BDO and propane diols account for 35 ~ 45% and 5 ~ 15% of Alevaire gross mass respectively.

9. Alevaire as claimed in claim 1 or 2, is characterized in that, the abundant composition of described smog comprises the glycerine accounting for Alevaire gross mass 10 ~ 30% and the glyceride accounting for Alevaire gross mass 0.1 ~ 5%.

10. an electronic cigarette liquid, comprises tobacco extract, alkaloid and essence, it is characterized in that, also comprises the Alevaire described in any one of claim 1 ~ 9.