Method and system for preparing an atomized liquid

Abstract

The application belongs to the technical field of atomization devices, and particularly relates to an oxidation-resistant method of atomized liquid. The method comprises the following steps: performing deoxygenation treatment on a solvent in the atomized liquid to obtain a deoxygenated solvent; under the protection of inert gas positive pressure, adding an active substance or essence to the deoxygenated solvent to obtain the atomized liquid; using a filling head which penetrates below the liquid surface of the atomized liquid to fill the atomized liquid into a liquid storage bottle to obtain a liquid storage bottle containing the atomized liquid; and performing secondary deoxygenation on the headspace of the liquid storage bottle containing the atomized liquid to obtain a target liquid storage bottle. The method performs deoxygenation operation at each link of atomized liquid preparation, filling and sealing, not only removes the dissolved oxygen in the solvent, but also eliminates the air contact during packaging, thereby cutting off the oxidation reaction condition from the physical root source, and long-acting color protection of the atomized liquid is realized.

Description

Technical Field

[0001] This application belongs to the field of atomization device technology, specifically relating to a method and system for preparing atomizing liquid. Background Technology

[0002] Currently, nicotine or fragrances in atomizing liquids are extremely sensitive to oxygen. Even at room temperature, trace amounts of oxygen dissolved in the atomizing liquid and air in the top space of the storage bottle can trigger a chain oxidation reaction under the catalysis of light and heat, causing the atomizing liquid to quickly change from colorless to yellow or reddish-brown.

[0003] Therefore, how to reduce the oxidation of nicotine or fragrance in atomizing liquid has become a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This application aims to provide a method and system for preparing atomizing liquid, so as to reduce the problem of nicotine or fragrance in the atomizing liquid being oxidized, thereby causing the atomizing liquid to change color.

[0005] To address the aforementioned technical problems, this application provides a method for preparing an atomizing liquid. The method includes: preparing the atomizing liquid, comprising: obtaining raw materials, the raw materials including a solvent and additives; deoxygenating the solvent to obtain a deoxygenated solvent; adding the additives to the deoxygenated solvent under positive pressure protection of an inert gas to obtain the atomizing liquid; and encapsulating the atomizing liquid into a storage bottle, comprising: purging the storage bottle with an inert gas to remove oxygen, obtaining a deoxygenated storage bottle; filling the storage bottle with the atomizing liquid, wherein during the filling process, the injection port for injecting the atomizing liquid into the storage bottle is located below the liquid surface of the atomizing liquid already contained in the storage bottle; performing secondary deoxygenation on the headspace of the storage bottle containing the atomizing liquid, and sealing the bottle opening.

[0006] In one embodiment, the solvent is deoxygenated to obtain a deoxygenated solvent, which includes: injecting the solvent into a mixing tank; introducing an inert gas through a microporous diffuser at the bottom of the mixing tank, wherein the inert gas forms microbubbles and rises through the solvent to carry away the oxygen in the solvent, thereby obtaining a deoxygenated solvent.

[0007] In one embodiment, the oxygen content in the deoxygenated solvent is 0~0.5ppm.

[0008] In one embodiment, under positive pressure protection of an inert gas, the ingredients are added to the deoxygenated solvent to obtain an atomizing liquid, comprising: after deoxygenating the solvent, sealing a mixing tank containing the deoxygenated solvent; and under positive pressure protection of an inert gas, adding the ingredients to the mixing tank to obtain an atomizing liquid.

[0009] In one embodiment, the injection port for injecting atomizing liquid into the storage bottle is located 20-50 mm below the liquid surface of the atomizing liquid already contained in the storage bottle.

[0010] In one embodiment, the storage bottle is purged with inert gas to remove oxygen, and the deoxygenated storage bottle must meet at least one of the following conditions: the purging conditions include: a purging flow rate of 5~20 L / min and a purging time of 0.3~0.8 s; and the oxygen content in the deoxygenated storage bottle is 0~3%.

[0011] In one embodiment, secondary deoxygenation of the headspace of the storage bottle containing the atomizing liquid and sealing the bottle opening includes: using a high-pressure airflow of inert gas to purge the unfilled space inside the storage bottle containing the atomizing liquid, and sealing the bottle opening within a target time.

[0012] In one embodiment, at least one of the following conditions is met: the pressure of the high-pressure gas flow is 1.01~1.05 atm; the parameters of the secondary purging include: purging flow rate of 5~20 L / min and purging time of 1~2 s; the target time is 0~0.5 s; after the secondary purging of the unfilled space in the storage bottle containing the atomizing liquid using the high-pressure gas flow of inert gas, the oxygen content in the unfilled space in the storage bottle is less than 1%.

[0013] In one embodiment, the inert gas includes at least one of the following: nitrogen and argon.

[0014] This application also provides a system for preparing an atomizing liquid, comprising: a mixing module including a mixing tank and a microporous diffuser, the microporous diffuser being disposed at the bottom of the mixing tank for outputting inert gas from the bottom of the mixing tank and forming microbubbles that pass through the liquid contained in the mixing tank; a filling module including a filling head and a scavenging assembly; the filling head having an injection port for injecting the atomizing liquid mixed by the mixing module into a storage bottle, the scavenging assembly for blowing inert gas into the storage bottle; and a gas delivery module for supplying inert gas to the microporous diffuser and the scavenging assembly.

[0015] This application protects a method for preparing an atomizing liquid. The method includes: preparing the atomizing liquid, including: obtaining raw materials, including a solvent and additives; deoxygenating the solvent to obtain a deoxygenated solvent; adding additives to the deoxygenated solvent under positive pressure protection of an inert gas to obtain the atomizing liquid; and packaging the atomizing liquid into a storage bottle, including: purging the storage bottle with an inert gas to obtain a deoxygenated storage bottle; filling the storage bottle with the atomizing liquid, wherein the injection port for injecting the atomizing liquid into the storage bottle during the filling process is located below the liquid surface of the atomizing liquid already filled in the storage bottle; performing secondary deoxygenation on the headspace of the storage bottle containing the atomizing liquid; and sealing the bottle opening. This method performs deoxygenation operations at every stage of atomizing liquid preparation, filling, and sealing, not only removing dissolved oxygen inside the solvent but also eliminating air contact during packaging, thus physically cutting off the conditions for oxidation reaction and achieving long-lasting color protection for the atomizing liquid.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a flowchart of the preparation method for the atomizing fluid; Figure 2 This is a schematic diagram of the atomizing liquid preparation system according to an embodiment of this application; Figure 3 This is a schematic diagram of solvent deoxygenation; Figure 4 This is a schematic diagram of canned atomizing liquid; Figure 5 This is a schematic diagram of headspace deoxygenation; Attached labels: 1-mixing tank, 2-microporous diffuser, 3-dissolved oxygen meter, 4-filling head, 5-storage bottle, 6-injection port. Detailed Implementation

[0018] The embodiments of this application will be described in detail below. These embodiments are exemplary and are only used to explain this application, and should not be construed as limiting this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0019] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] This application provides a method for preparing an atomizing fluid, such as... Figure 1 As shown, the method includes: S1. Prepare the atomizing fluid.

[0023] Step S1 specifically includes: 1.1. Pour the solvent into the mixing tank.

[0024] In one embodiment, the solvent includes at least one of the following: propylene glycol, glycerol, ethanol, and water.

[0025] 1.2 Inert gas is emitted from the microporous diffuser 2 at the bottom of the mixing tank 1, passes through the solvent to carry away oxygen, and then the mixing tank containing the deoxygenated solvent is sealed to obtain a sealed mixing tank, such as... Figure 3 As shown.

[0026] In one embodiment, the inert gas includes at least one of the following: nitrogen and argon.

[0027] In one embodiment, the oxygen content in the deoxygenated solvent is 0~0.5ppm.

[0028] Specifically, the oxygen content can be measured using an online dissolved oxygen meter 3, and the oxygen content in the deoxygenated solvent is 0, 0.2 ppm, 0.4 ppm, 0.5 ppm or any value within the above range.

[0029] 1.3. Under the protection of inert gas positive pressure, add ingredients (such as active substances or fragrances) to a sealed mixing tank to obtain atomizing liquid. This step is to illustrate that the mixing of atomizing liquid is carried out under nitrogen positive pressure protection throughout the process, ensuring that the ingredients do not come into contact with air when added.

[0030] In one embodiment, the inert gas includes at least one of the following: nitrogen and argon.

[0031] In one embodiment, the active substance includes at least one of nicotine and nicotine derivatives. Nicotine derivatives include one or more of nicotine salts (such as nicotine benzoate), nicotine in a matrix such as a glycobase or an organometallic complex, nicotine-resin combinations, nicotine inclusion complexes, and non-covalently bound nicotine.

[0032] It should be noted that, for nicotine benzoate salts, the method of this application not only achieves color protection of the atomized liquid on a macroscopic level, but also prevents the formation of harmful oxidation byproducts (nicotine nitrogen oxides) on a microscopic level, thereby improving the chemical safety of the product.

[0033] In one embodiment, at least one of the following may be added to the sealed mixing container: a sweetener or a cooling agent. To enhance the antioxidant effect of the atomizing liquid, an antioxidant may also be added.

[0034] The flavorings include at least one of the following: bergamot flavoring, eucalyptus flavoring, citrus flavoring, lemon flavoring, peppermint flavoring, peppermint flavoring, menthol, licorice flavoring, wintergreen flavoring, tobacco flavoring, coffee flavoring, vanilla flavoring, lime flavoring, apple flavoring, peach flavoring, mango flavoring, cherry flavoring, blueberry flavoring, strawberry flavoring, cola flavoring, cinnamon flavoring, pandan flavoring, and watermelon flavoring.

[0035] The sweeteners include at least one of the following: xylitol, sorbitol, mannitol, iodine, lactitol, maltitol, isomaltitol, hydrogenated starch hydrolysate, erythritol, maltotriol, aspartame, acesulfame potassium, sodium saccharin, sucralose, neotame, cyclamate, alitane, steviol glycosides, arabinitol, and monk fruit sweetener.

[0036] The cooling agent includes at least one of the following: menthol, menthol derivatives, WS-3, and WS-23.

[0037] The antioxidants include at least one of the following: vitamin E, ascorbate palmitate, tert-butyl-p-hydroxyanisole, and di-tert-butyl-p-cresol.

[0038] In one embodiment, the atomizing liquid comprises, by mass fraction: 80-95% solvent, 0-5% active substance, 0-10% flavoring, 0-1% sweetener, and 0-3% cooling agent.

[0039] Specifically, by mass fraction, the atomizing liquid includes: 84-90% solvent, 2-3% active substance, 4-6% flavoring, 0.2-0.5% sweetener, and 0.3-2% cooling agent.

[0040] S2. Seal the atomizing liquid into a storage bottle.

[0041] Step S2 specifically includes: 2.1. Use inert gas to purge the liquid storage bottle to obtain a deoxygenated liquid storage bottle.

[0042] In one embodiment, the purging conditions include: a purging flow rate of 5-20 L / min and a purging time of 0.3-0.8 s.

[0043] Specifically, the purging flow rate is 5 L / min, 15 L / min, 20 L / min or any value within the above range; the purging time is 0.3 s, 0.5 s, 0.8 s or any value within the above range.

[0044] In one embodiment, the oxygen content in the deoxygenated storage bottle is 0, 1%, 2%, 3%, or any value within the above range.

[0045] 2.2 Fill the atomizing fluid into the storage bottle. During the filling process, the injection port for injecting the atomizing fluid into the storage bottle is located below the surface of the atomizing fluid already filled in the storage bottle. This placement of the injection port below the surface of the atomizing fluid reduces the formation of bubbles due to rapid descent of the atomizing fluid.

[0046] In one embodiment, a filling head 4 is used to fill the atomizing liquid, and the filling head includes a liquid injection port 6. Specifically, the atomizing liquid is injected into the storage bottle 5 through the liquid injection port of the filling head, such as... Figure 4 As shown.

[0047] In one embodiment, the injection port for injecting atomizing liquid into the storage bottle is located 20-50 mm below the liquid surface of the atomizing liquid already filled in the storage bottle.

[0048] Specifically, the injection port for injecting the atomizing liquid into the storage bottle is located 20mm, 30mm, 40mm, 50mm or any value within the above range below the liquid level of the atomizing liquid already filled in the storage bottle.

[0049] 2.3 Perform secondary deoxygenation on the headspace of the storage bottle containing the atomizing liquid and seal the bottle opening.

[0050] In one embodiment, a high-pressure airflow of inert gas is used to purge the unfilled space inside the storage bottle containing the atomizing liquid, and the bottle opening of the storage bottle 5 is sealed within a target time. Figure 5 As shown.

[0051] In one embodiment, the pressure of the high-pressure gas flow is 1.01~1.05 atm.

[0052] Specifically, the pressure of the high-pressure gas flow is 1.01 atm, 1.03 atm, 1.05 atm, or any value within the above range.

[0053] In one embodiment, the headspace volume of the storage bottle containing the atomizing liquid accounts for 10-30%.

[0054] Specifically, the headspace volume of the storage bottle containing the atomizing liquid accounts for 10%, 20%, 30%, or any value within the above range.

[0055] In one embodiment, the inert gas includes at least one of the following: nitrogen and argon.

[0056] In one embodiment, the parameters for the secondary purging include: a purging flow rate of 5~20 L / min and a purging time of 1~2 s.

[0057] Specifically, the purging flow rate in the secondary purging is 5 L / min, 15 L / min, 20 L / min or any value within the above range; the purging time is 1 s, 1.5 s, 2 s or any value within the above range.

[0058] In one embodiment, the target time is 0~0.5s.

[0059] Specifically, the target time is 0s, 0.3s, 0.5s, or any value within the above range.

[0060] In one embodiment, after a secondary scavenging of the unfilled space in the storage bottle containing atomizing liquid using a high-pressure inert gas flow, the oxygen content in the unfilled space (headspace) of the storage bottle is less than 1%.

[0061] This application also provides a system for preparing an atomizing liquid, such as... Figure 2As shown, it includes: a mixing module, including a mixing tank and a microporous diffuser, the microporous diffuser being disposed at the bottom of the mixing tank for inert gas to be output from the bottom of the mixing tank and form microbubbles that pass through the liquid contained in the mixing tank; a filling module, including a filling head and a scavenging assembly; the filling head having a liquid injection port for injecting the atomized liquid mixed by the mixing module into the liquid storage bottle, and the scavenging assembly for blowing inert gas into the liquid storage bottle; and a gas delivery module for delivering inert gas to the microporous diffuser and the scavenging assembly.

[0062] To better understand this solution, the following embodiments are also provided.

[0063] Example 1 Antioxidant methods for atomizing fluids include: 1. Pour the solvent into the mixing tank.

[0064] The solvent includes at least one of the following: propylene glycol and glycerol.

[0065] 2. Inert nitrogen gas is emitted from the microporous diffuser at the bottom of the mixing tank, and passes through the solvent to carry away oxygen, thus obtaining a deoxygenated solvent.

[0066] The oxygen content in the deoxygenated solvent is 0.4 ppm.

[0067] 3. Seal the mixing container containing the deoxygenated solvent to obtain a sealed mixing container.

[0068] 4. Under nitrogen positive pressure protection, add active substance (nicotine), flavoring (blueberry flavoring), sweetener (sucralose) and cooling agent (menthol) to a sealed mixing container to obtain the atomizing liquid.

[0069] 5. Purge the storage bottle with nitrogen gas to obtain a deoxygenated storage bottle.

[0070] The purging parameters include: a purging flow rate of 15 L / min and a purging time of 0.5 s.

[0071] 6. Position the filling head 30mm below the surface of the atomizing liquid in the mixing tank, and fill the atomizing liquid into the deoxygenated storage bottle through the filling head to obtain a storage bottle containing the atomizing liquid.

[0072] 7. The headspace of the storage bottle containing the atomizing liquid is purged a second time using nitrogen gas under high pressure, and the storage bottle containing the atomizing liquid is sealed within 0.3s to obtain the target storage bottle.

[0073] The high-voltage condition is 1.03 atm.

[0074] The storage bottle has a volume of 10ml, a filling volume of 9ml, and a headspace of 1ml, meaning the headspace volume accounts for 10%.

[0075] The parameters for the secondary purging include: a purging flow rate of 15 L / min and a purging time of 2 s.

[0076] The oxygen content in the headspace of the target storage bottle is 0.8%.

[0077] The atomizing liquid, by mass fraction, comprises: 90% solvent, 2% active substance, 6% flavoring, 0.5% sweetener, and 1.5% cooling agent.

[0078] Example 2 The difference from Example 1 is that the flavoring is changed from blueberry flavoring to lemon flavoring, which is easily oxidized.

[0079] Example 3 The difference from Example 1 is that the headspace volume of the liquid storage bottle accounts for 30%.

[0080] Example 4 The difference from Example 1 is that the high pressure condition is 1.01 atm.

[0081] Example 5 The difference from Example 1 is that the high pressure condition is 1.05 atm.

[0082] Example 6 The difference from Example 1 is that the active substance is nicotine benzoate.

[0083] Comparative Example 1 The preparation method of the atomizing fluid includes: 1. Pour the solvent into the mixing tank and seal the mixing tank.

[0084] The solvent includes at least one of the following: propylene glycol and glycerol.

[0085] 2. Add active ingredients (nicotine), flavoring (blueberry flavoring), sweetener (sucralose), and cooling agent (menthol) to a sealed mixing container to obtain an atomizing liquid.

[0086] 3. Pour the atomizing liquid into the storage bottle to obtain a storage bottle containing the atomizing liquid, and seal the storage bottle.

[0087] The storage bottles of the above-described embodiments and comparative examples were placed in an environment of 50°C. After 10 days, the Gardner color value of the atomizing liquid was measured using a Gardner colorimeter according to ASTM D1544 standard. The degree of oxidation of the atomizing liquid was determined based on the Gardner value; the lower the Gardner value, the lower the degree of oxidation of the atomizing liquid. The test results are shown in Table 1.

[0088] Table 1. Gardner values ​​of the atomizing fluid in the examples and comparative examples.

[0089] As can be seen from the data in Table 1, the Gardner value of the embodiment is lower than that of the comparative example, indicating that the method protected by this application has a good deoxygenation effect.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for preparing an atomizing fluid, characterized in that, The method includes: Preparing an atomizing fluid includes: obtaining raw materials, the raw materials including solvent and additives; deoxygenating the solvent to obtain a deoxygenated solvent; and adding the additives to the deoxygenated solvent under positive pressure protection of an inert gas to obtain an atomizing fluid. Encapsulating the atomizing liquid into a storage bottle includes: purging the storage bottle with an inert gas to remove oxygen, obtaining a deoxygenated storage bottle; filling the storage bottle with the atomizing liquid, wherein the injection port for injecting the atomizing liquid into the storage bottle during the filling process is located below the liquid surface of the atomizing liquid already filled in the storage bottle; performing secondary deoxygenation on the headspace of the storage bottle containing the atomizing liquid, and sealing the bottle opening.

2. The method according to claim 1, characterized in that, The solvent is subjected to deoxygenation treatment to obtain a deoxygenated solvent, comprising: Inject the solvent into the mixing tank; The inert gas is introduced through a microporous diffuser at the bottom of the mixing tank. The inert gas forms microbubbles and rises through the solvent, carrying away the oxygen in the solvent to obtain a deoxygenated solvent.

3. The method according to claim 2, characterized in that, The oxygen content in the deoxygenated solvent is 0~0.5ppm.

4. The method according to claim 2, characterized in that, Under inert gas positive pressure protection, the ingredients are added to the deoxygenated solvent to obtain an atomizing liquid, comprising: After the solvent is deoxygenated, the mixing tank containing the deoxygenated solvent is sealed. Under the protection of positive pressure from inert gas, ingredients are added to the mixing tank to obtain an atomizing liquid.

5. The method according to claim 1, characterized in that, The injection port for injecting atomizing liquid into the storage bottle is located 20-50 mm below the liquid level of the atomizing liquid already filled in the storage bottle.

6. The method according to claim 1, characterized in that, The process of purging the storage bottle with inert gas to remove oxygen, resulting in a deoxygenated storage bottle, requires at least one of the following conditions to be met: The purging conditions include: purging flow rate of 5~20 L / min and purging time of 0.3~0.8 s; The oxygen content in the deoxygenated storage bottle is 0-3%.

7. The method according to claim 1, characterized in that, The process includes secondary deoxygenation of the headspace of the storage bottle containing the atomizing liquid and sealing the bottle opening, comprising: The space inside the storage bottle containing the atomizing liquid that is not filled with atomizing liquid is purged a second time using a high-pressure airflow of inert gas, and the bottle opening is sealed within a target time.

8. The method according to claim 7, characterized in that, Meet at least one of the following: The pressure of the high-pressure gas flow is 1.01~1.05 atm; The parameters for the secondary purging include: purging flow rate of 5~20L / min and purging time of 1~2s; The target time is 0~0.5s; After the space inside the storage bottle containing the atomizing liquid that is not filled with atomizing liquid is purged a second time using a high-pressure airflow of inert gas, the oxygen content in the space inside the storage bottle that is not filled with atomizing liquid is less than 1%.

9. The method according to any one of claims 1 to 8, wherein the inert gas comprises at least one of the following: nitrogen or argon.

10. A system for preparing an atomizing liquid, characterized in that, include: The mixing module includes a mixing tank and a microporous diffuser. The microporous diffuser is disposed at the bottom of the mixing tank and is used for inert gas to be output from the bottom of the mixing tank and form microbubbles that pass through the liquid contained in the mixing tank. A filling module includes a filling head and a scavenging assembly; the filling head has a liquid injection port for injecting the atomized liquid prepared by the mixing module into a storage bottle, and the scavenging assembly is used to blow inert gas into the storage bottle. The gas delivery module is used to deliver inert gas to the microporous diffuser and the scavenging assembly.

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