Thermal-inductance antibacterial female vagina lubricating milky gel and preparation method thereof

Abstract

The invention discloses thermal-inductance antibacterial female vagina lubricating milky gel and a preparation method thereof.The lubricant is prepared from, by mass, 0.2%-1.4% of sweetening agents, 0.1%-0.5% of preservatives, 10%-30% of humectants, 5%-12% of emulsifying agents, 4%-10% of absolute ethyl alcohol, 1%-3% of thickening agents, 0.05%-0.6% of dispersing agents, 2%-4% of plant extracts, 1%-5% of flavoring agents, 0.2%-0.8% of citric acid and the balance purified water, according to the milky gel, dosage form adjustment is adopted to reduce the influence of the plant extract on the stability of the gel, the stability of the milky gel is improved through the specially-made emulsifier, and the damage of mechanical heat generated in the processing process to the temperature-sensitive plant extract is further reduced; and a relatively long-acting thermal inductance effect is provided by utilizing the matching of plant extracts and dosage forms.

Description

Technical Field

[0001] The invention belongs to the technical field of medical hygiene materials, and in particular relates to a heat-sensing antibacterial female vagina lubricating emulsion gel and a preparation method thereof. Background Art

[0002] There are many heat-sensing lubricating products available on the market. For example, the long-lasting heat-sensing water-soluble human body lubricating liquid disclosed in patent CN106215251B uses ginger extract to provide heat sensation, but the addition of ginger extract may have a certain impact on the overall stability of the lubricant, shortening the shelf life; another example is the fingertip lubricant provided by patent CN101797402B, which uses plant alcohol derivatives as heat-sensing agents, but the silicon-based base used in the lubricant is difficult to clean and may induce inflammation. Therefore, there is an urgent need for a heat-sensing human lubricating product that is easy to clean and has high stability. Summary of the invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an easy-to-clean, highly stable and long-lasting thermal lubricant and a preparation method thereof, which reduces the effect of plant extracts on the stability of the lubricant by adjusting the dosage form, and uses a special emulsifier to improve the stability of the lubricant and facilitate subsequent cleaning, further reducing the damage of the mechanical heat generated during the processing to the temperature-sensitive plant extracts.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The first aspect of the present invention provides a heat-sensing antibacterial female vaginal lubricating emulsion gel, which comprises the following raw materials by mass percentage: 0.2-1.4% sweetener, 0.1-0.5% preservative, 10-30% moisturizer, 8-12% emulsifier, 4-10% anhydrous ethanol, 1-3% thickener, 0.05-0.6% dispersant, 2-4% plant extract, 0.03-0.08% flavoring agent, 0.3-0.8% citric acid, and the balance is purified water;

[0006] Wherein, the plant extract is schisandra chinensis extract.

[0007] The invention provides an emulsion gel with lubricating effect. The spilanthol extract used contains amino acids, triterpenes, stigmasterol, beeswax alcohol, alkaloids and a large amount of spilanthol. The gel produces a slight numbness after contacting the mucous membrane, and the spilanthol in the form of the spilanthol extract has a better muscle contraction inhibition effect than synthetic spilanthol, and can assist in improving lubrication.

[0008] In some embodiments, the humectant comprises 1,3-propylene glycol, glycerol, and β-glucose.

[0009] Glycerin is a common moisturizer with strong water absorption capacity. It is a natural moisturizing factor in the stratum corneum of human skin, but its water-holding ability is average. β-glucan has low permeability, but can absorb a large amount of water and will not absorb moisture from the skin in a dry environment. The two are used in combination with 1,3-propylene glycol to utilize the penetration-promoting effect of 1,3-propylene glycol to improve the overall moisturizing effect.

[0010] In some embodiments, the preparation steps of the emulsifier are as follows:

[0011] 2-Butyloctanol and dodecylbenzenesulfonic acid are stirred and mixed at 30-50° C., then soy protein isolate is added, stirred at 80-120° C. for 6-10 hours, cooled to 40-50° C., pH adjusted to 7-8 with 3-10wt% sodium hydroxide solution, filtered and rotary evaporated to obtain a crude product, mixed the crude product with water, distilled until the distillate is a uniform phase, cooled the remaining product to room temperature, and freeze-dried to obtain an emulsifier.

[0012] In some embodiments, the mass ratio of 2-butyloctanol to soy protein isolate is (1-4):1.

[0013] In some embodiments, the mass ratio of dodecylbenzenesulfonic acid to soy protein isolate is (0.07-0.12):1.

[0014] In some embodiments, the mass ratio of the crude product to water is (20-30):1.

[0015] Emulsion gel can protect heat-sensitive spilanthol. On this basis, in order to simplify the preparation process of traditional emulsion gel, the present invention first adjusts the emulsion dosage form to an aqueous emulsion. Compared with ordinary emulsions, the preparation of aqueous emulsions is simpler. It only needs to use a mixture of spilanthol extract and solvent as the oil phase, and then add an emulsifier and purified water for shearing. However, the thermodynamics of aqueous emulsions are more unstable.

[0016] The present invention adopts an emulsifier made of low-irritation raw materials such as soy protein isolate to improve the stability of the aqueous emulsion, reduce the occurrence of demulsification, and can also provide a certain moisturizing effect; wherein the hydrophobic side chain provided by 2-butyloctanol shows good emulsification, improves the emulsification efficiency, and also reduces the damage of the mechanical heat generated during the processing to the temperature-sensitive spilanthol. And the emulsifier obtains a slightly solidified liquid after stirring, which provides a basis for the gel state of this system, reduces the addition of thickeners, and improves skin feel. However, the applicant found that simply shearing the emulsifier with water does have a good emulsification effect, but after adding it and the adjuvant, its emulsification effect is reduced, so that the stability of the final product milky gel is reduced.

[0017] In some embodiments, the flavoring agent comprises eugenol, methyl salicylate, L-carvone, and limonene.

[0018] The invention provides suitable aroma for the emulsion gel by compounding flavoring agents, wherein eugenol is a natural compound having pungent and warming properties and providing a warming sensation to a certain extent.

[0019] In some embodiments, the dispersant comprises dispersant 123K and tristyrylphenol polyoxyethylene-polyoxypropylene ether.

[0020] In some embodiments, the mass ratio of the dispersant 123K to tristyrylphenol polyoxyethylene-polyoxypropylene ether is (0.8-1.5):1.

[0021] The dispersant added in the present invention not only improves the stability of the properties of the aqueous emulsion, but the applicant also found that the particle size of the emulsion is reduced. The smaller the particle size, the better the emulsification effect of the aqueous emulsion, which solves the problem of decreased emulsification effect caused by the addition of auxiliary agents. The possible reason is that the steric hindrance effect formed by tristyrylphenol polyoxyethylene-polyoxypropylene ether prevents contact and collision between particles during emulsification, thereby avoiding the merging and enlargement of particles, which helps to maintain the fineness and uniform distribution of particles in the emulsion, and helps to maintain the stability of the emulsion gel.

[0022] In some embodiments, the sweetener is cyclamate; the preservative comprises benzyl alcohol and benzoic acid; and the thickener is xanthan gum.

[0023] The spathiphyllum extract used in the present invention has antibacterial property, and can be used in combination with a preservative to effectively reduce the amount of the preservative and reduce stimulation to the skin and mucous membranes.

[0024] The second aspect of the present invention provides a method for preparing a thermal antibacterial female vaginal lubricating emulsion gel, comprising the following steps: at room temperature, stirring and dissolving a plant extract and anhydrous ethanol to form an oil phase, adding an emulsifier and half of purified water and shearing at a speed of 7000 to 15000 rpm for 30 to 100 seconds; dissolving a sweetener, a preservative, a humectant, a thickener, a dispersant, a flavoring agent, and citric acid in the other half of the purified water, and mixing the two evenly to obtain an emulsion gel.

[0025] During the preparation process, the present invention first prepares an aqueous emulsion, and then mixes it with other raw materials to obtain an emulsion gel. The process steps are simple, and the production cost is greatly reduced. Moreover, compared with the aqueous emulsion, the specifically selected emulsion gel of the present invention can provide a longer-lasting thermal effect. The possible reason is the dissolution heat caused by the formation of a moisture gradient between the skin and the emulsion gel. In addition, since the spathiphyllum extract can effectively relax muscles and cells, the thermal effect can be quick.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention provides a lubricating emulsion gel that is easy to clean and has high stability, which provides a thermal effect through the heat of dissolution caused by the formation of a moisture gradient between the special dosage form and the skin; wherein the spilanthus extract can effectively relax muscles and cells, making the thermal sensation take effect quickly; and the spilanthus amide in the form of the spilanthus extract has a better effect of inhibiting muscle contraction than the synthetic spilanthus amide, and can assist in improving lubrication.

[0028] 2. The present invention improves the overall moisturizing effect of the emulsion gel and reduces the number of re-applications by using 1,3-propylene glycol, glycerol and β-glucose in combination.

[0029] 3. The present invention uses a mixture of spilanthol extract and a solvent as an oil phase, then adds purified water and an emulsifier for shearing to obtain an aqueous emulsion, which is then mixed with the remaining raw materials to obtain a lubricating emulsion gel with a simple preparation process. This dosage form provides protection for the heat-sensitive spilanthol, and uses a special emulsifier to improve the stability and emulsification efficiency of the aqueous emulsion and facilitate subsequent cleaning, further reducing the damage of the mechanical heat generated during the processing to the temperature-sensitive spilanthol.

[0030] 4. The present invention improves the stability of the properties of the aqueous emulsion by compounding the dispersant 123K and tristyrylphenol polyoxyethylene-polyoxypropylene ether, solves the problem of decreased emulsification effect caused by the addition of auxiliary agents, and helps maintain the stability of the emulsion gel. DETAILED DESCRIPTION

[0031] The present invention will be described below in conjunction with specific embodiments. It should be noted that the following embodiments are examples of the present invention and are only used to illustrate the present invention, but not to limit the present invention. Other combinations and various modifications within the concept of the present invention may be performed without departing from the spirit or scope of the present invention.

[0032] In order to facilitate those skilled in the art to implement the present invention, some raw materials and manufacturers of the embodiments and comparative examples are described as follows:

[0033] Tristyrylphenol polyoxyethylene-polyoxypropylene ether was purchased from Nantong Chenrun Chemical Co., Ltd.

[0034] Preparation Example 1

[0035] The preparation steps of emulsifier A are as follows:

[0036] 250 g of 2-butyloctanol and 10 g of dodecylbenzenesulfonic acid were stirred and mixed at 40° C., and then 100 g of soy protein isolate was added, and the mixture was stirred at 90° C. for 8 h. The mixture was cooled to 40° C., and the pH was adjusted to 7 with a 5 wt % sodium hydroxide solution. The mixture was filtered and rotary evaporated to obtain a crude product. The crude product was mixed with 25 times the mass of water, and distilled until the distillate was a uniform phase. The remaining product was cooled to room temperature and freeze-dried to obtain an emulsifier.

[0037] Preparation Example 2

[0038] The preparation steps of emulsifier B are as follows:

[0039] The difference between this preparation example and preparation example 1 is that the soy protein isolate is replaced by an equal amount of glucose.

[0040] Preparation Example 3

[0041] The preparation steps of emulsifier C are as follows:

[0042] The difference between this preparation example and preparation example 1 is that 2-butyloctanol is replaced by an equal amount of n-dodecyl alcohol.

[0043] Example 1

[0044] A heat-sensing antibacterial female vaginal lubricating emulsion gel, comprising the following raw materials by mass percentage: 0.8% cyclamate, 0.3% preservative, 20% moisturizer, 9% emulsifier A, 7% anhydrous ethanol, 2% xanthan gum, 0.4% dispersant, 3% spathodea extract, 4% flavoring agent, 0.6% citric acid, and the balance is purified water;

[0045] The moisturizing agent contains 12% 1,3-propylene glycol, 6% glycerin and 2% beta-glucose;

[0046] Preservatives include 0.2% benzyl alcohol, 0.1% benzoic acid;

[0047] The dispersant comprises 0.22% dispersant 123K, 0.18% tristyrylphenol polyoxyethylene-polyoxypropylene ether;

[0048] The fragrance contains 1.8% eugenol, 0.6% methyl salicylate, 1.2% L-carvone and 0.4% limonene;

[0049] The preparation method of the long-lasting thermal body lubricant in this embodiment comprises the following steps: at room temperature, stirring and dissolving the spathiphyllum extract and anhydrous ethanol to form an oil phase, adding emulsifier A and half of purified water and shearing at a speed of 11000 rpm for 70 seconds; dissolving cyclamate, preservatives, moisturizers, xanthan gum, dispersants, flavoring agents, and citric acid in the other half of purified water, and mixing the two evenly to obtain an emulsion gel.

[0050] Example 2

[0051] A heat-sensing antibacterial female vaginal lubricating emulsion gel, comprising the following raw materials by mass percentage: 0.2% cyclamate, 0.1% preservative, 10% moisturizer, 5% emulsifier A, 4% anhydrous ethanol, 1% xanthan gum, 0.05% dispersant, 4% schizonepeta extract, 1% flavoring agent, 0.3% citric acid, and the balance is purified water;

[0052] The moisturizing agent contains 5% 1,3-propylene glycol, 3% glycerin and 2% beta-glucose;

[0053] Preservatives include 0.05% benzyl alcohol, 0.05% benzoic acid

[0054] The dispersant comprises 0.023% dispersant 123K, 0.027% tristyrylphenol polyoxyethylene-polyoxypropylene ether;

[0055] The fragrance contains 0.25% eugenol, 0.25% methyl salicylate, 0.25% L-carvone and 0.25% limonene;

[0056] The preparation method of the long-lasting thermal body lubricant in this embodiment comprises the following steps: at room temperature, stirring and dissolving the spathiphyllum extract and anhydrous ethanol to form an oil phase, adding emulsifier A and half of purified water and shearing at a speed of 7000 rpm for 100 seconds; dissolving cyclamate, preservatives, moisturizers, xanthan gum, dispersants, flavoring agents, and citric acid in the other half of purified water, and mixing the two evenly to obtain an emulsion gel.

[0057] Example 3

[0058] A heat-sensing antibacterial female vaginal lubricating emulsion gel, comprising the following raw materials by mass percentage: 1.4% cyclamate, 0.5% preservative, 30% moisturizer, 12% emulsifier A, 10% anhydrous ethanol, 3% xanthan gum, 0.6% dispersant, 2% schizonepeta extract, 5% flavoring agent, 0.8% citric acid, and the balance is purified water;

[0059] The moisturizing agent contains 8% 1,3-propylene glycol, 12% glycerin and 10% beta-glucose;

[0060] Preservatives include 0.2% benzyl alcohol, 0.3% benzoic acid;

[0061] The dispersant comprises 0.36% dispersant 123K, 0.24% tristyrylphenol polyoxyethylene-polyoxypropylene ether;

[0062] The fragrance contains 1.3% eugenol, 1.5% methyl salicylate, 1.2% L-carvone and 1% limonene;

[0063] The preparation method of the long-lasting thermal body lubricant in this embodiment comprises the following steps: at room temperature, stirring and dissolving the spathiphyllum extract and anhydrous ethanol to form an oil phase, adding emulsifier A and half of purified water and shearing at a speed of 15000 rpm for 30 seconds; dissolving cyclamate, preservatives, moisturizers, xanthan gum, dispersants, flavoring agents, and citric acid in the other half of purified water, and mixing the two evenly to obtain an emulsion gel.

[0064] Example 4

[0065] This embodiment provides a heat-sensing antibacterial female vaginal lubricating emulsion gel and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that the dispersant is 0.4% dispersant 123K.

[0066] Example 5

[0067] This embodiment provides a heat-sensing antibacterial female vaginal lubricating emulsion gel and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that the dispersant is 0.4% tristyrylphenol polyoxyethylene-polyoxypropylene ether.

[0068] Example 6

[0069] This embodiment provides a heat-sensing antibacterial female vaginal lubricating emulsion gel and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that: emulsifier A is replaced by an equal amount of emulsifier B.

[0070] Example 7

[0071] This embodiment provides a heat-sensing antibacterial female vaginal lubricating emulsion gel and a preparation method thereof. The specific implementation method is the same as that of Example 1, except that: emulsifier A is replaced by an equal amount of emulsifier C.

[0072] Comparative Example 1

[0073] A heat-sensing antibacterial female vaginal lubricating gel, comprising the following raw materials, calculated by mass percentage: 0.8% cyclamate, 0.3% preservative, 20% moisturizer, 7% anhydrous ethanol, 2% xanthan gum, 0.4% dispersant, 3% schizonepeta extract, 4% flavoring agent, 0.6% citric acid, and the balance is purified water;

[0074] The moisturizing agent contains 12% 1,3-propylene glycol, 6% glycerin and 2% beta-glucose;

[0075] Preservatives include 0.2% benzyl alcohol, 0.1% benzoic acid;

[0076] The dispersant comprises 0.22% dispersant 123K, 0.18% tristyrylphenol polyoxyethylene-polyoxypropylene ether;

[0077] The fragrance contains 1.8% eugenol, 0.6% methyl salicylate, 1.2% L-carvone and 0.4% limonene;

[0078] The preparation method of the long-lasting thermal body lubricant in this embodiment comprises the following steps: at room temperature, stirring and dissolving the spathiphyllum extract and anhydrous ethanol to form an oil phase, adding half of purified water and shearing at a speed of 11000 rpm for 70 seconds; dissolving cyclamate, preservatives, moisturizers, xanthan gum, dispersants, flavoring agents, and citric acid in the other half of purified water, and mixing the two evenly to obtain a gel.

[0079] Comparative Example 2

[0080] A heat-sensing antibacterial female vaginal lubricating emulsion gel, comprising the following raw materials by mass percentage: 0.8% cyclamate, 0.3% preservative, 20% moisturizer, 9% emulsifier A, 7% anhydrous ethanol, 2% xanthan gum, 0.4% dispersant, 4% flavoring agent, 0.6% citric acid, and the balance is purified water;

[0081] The moisturizing agent contains 12% 1,3-propylene glycol, 6% glycerin and 2% beta-glucose;

[0082] Preservatives include 0.2% benzyl alcohol, 0.1% benzoic acid;

[0083] The dispersant comprises 0.22% dispersant 123K, 0.18% tristyrylphenol polyoxyethylene-polyoxypropylene ether;

[0084] The fragrance contains 1.8% eugenol, 0.6% methyl salicylate, 1.2% L-carvone and 0.4% limonene;

[0085] The preparation method of the long-lasting thermal body lubricant in this embodiment comprises the following steps: at room temperature, shearing anhydrous ethanol, emulsifier A and half of purified water at a rotation speed of 11000 rpm for 70 seconds; dissolving cyclamate, preservatives, moisturizers, xanthan gum, dispersants, flavoring agents and citric acid in the other half of purified water, and mixing the two evenly to obtain an emulsion gel.

[0086] Performance Test:

[0087] 1. Moisturizing experiment: Take 0.2g (accurate to 0.0001g) of the gel provided in each embodiment and comparative example and apply it on a 7.5cm×7.5cm glass plate with 3M tape, put it in a desiccator filled with a saturated solution of potassium acetate, the relative humidity in the desiccator is 62%, weigh it after standing for 4 hours, and calculate the moisture retention rate. The moisture retention rate calculation formula is: Moisturizing rate %=m2 / m1×100%, where: m1 is the water content of the sample before placement, and m2 is the water content of the sample after placement.

[0088] 2. Hot storage and cold storage stability test:

[0089] Take 5 mL of the gel provided in each example and comparative example, seal it in a 10 mL stoppered test tube, place it in an oven at 54° C. for 14 days, and then examine it under a microscope to see if there are crystals or oil droplets.

[0090] 5 mL of the gel provided in each example and comparative example was sealed in a 10 mL stoppered glass tube and placed at 0° C. for 7 days before microscopic examination to observe whether there were crystals or oil droplets.

[0091] 3. Thermal effect test: Take the more sensitive skin under the armpit as the test point, record the initial temperature, apply the gel provided by each embodiment and comparative example, place a thermocouple temperature probe, and record the temperature difference (in integers) and the total heating time (with constant temperature as the cutoff point). The results of performance tests 1, 2, and 3 are shown in Table 1.

[0092] Table 1

[0093]

[0094]

[0095] It can be seen from the data in Table 1 that the gels of Examples 1-7 and Comparative Examples 1-2 all have good moisturizing effects, and the gel of Examples 1-3 has both good stability and thermal effects. Compared with Example 1, Examples 4-5 selected a single dispersant 123K or tristyrylphenol polyoxyethylene-polyoxypropylene ether as a dispersant. It can be seen from the results of the hot storage and cold storage stability tests that this is not conducive to the stability of the gel. Compared with Example 1, the emulsifier of Example 6 uses glucose instead of soy protein isolate, which is not conducive to maintaining the temperature of the gel; the emulsifier of Example 7 uses n-dodecyl alcohol instead of 2-butyloctanol, resulting in a slight decrease in stability.

[0096] From Example 1 and Comparative Example 1, it can be seen that for the present gel system, the emulsion can provide a longer-lasting thermal effect than the water-like state, which may be due to the heat of dissolution caused by the water gradient formed between the emulsion gel and the skin. Compared with Example 1, Comparative Example 2 does not add the spathiphyllum extract, which does not affect the stability of the gel, but it can be seen from the temperature difference that this reduces the thermal effect of the lubricant to a certain extent.

[0097] 4. Antibacterial effect test: Examples 1-3 and Comparative Example 2 were subjected to a suspension quantitative antibacterial test according to the standard WS / T 650-2019 "Antibacterial and antibacterial effect evaluation method" to determine the antibacterial rate. The strains were Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus hemolyticus, and Escherichia coli. The results can be seen from Table 2: Under the same preservative content, the antibacterial rate of Examples 1-3 is stronger than that of Comparative Example 2, indicating that the added spathiphyllum extract can improve the antibacterial effect of the gel, which can reduce the amount of preservatives to a certain extent and reduce irritation to sensitive skin.

[0098] Table 2

[0099]

[0100] The embodiments and comparative examples described above do not impose any form of limitation on the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A heat-sensitive antibacterial female vaginal lubricating emulsion gel, characterized in that: The composition comprises the following raw materials by mass percentage: 0.2-1.4% sweetener, 0.1-0.5% preservative, 10-30% moisturizer, 5-12% emulsifier, 4-10% anhydrous ethanol, 1-3% thickener, 0.05-0.6% dispersant, 2-4% plant extract, 1-5% flavoring agent, 0.3-0.8% citric acid, and the balance is purified water; Wherein, the plant extract is schisandra chinensis extract.

2. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 1, characterized in that: The humectant comprises 1,3-propylene glycol, glycerol and β-glucose.

3. The thermal antibacterial female vaginal lubricating emulsion gel according to claim 1, characterized in that: The preparation steps of the emulsifier are as follows: 2-Butyloctanol and dodecylbenzenesulfonic acid are stirred and mixed at 30-50° C., then soy protein isolate is added, stirred at 80-120° C. for 6-10 hours, cooled to 40-50° C., pH adjusted to 7-8 with 3-10wt% sodium hydroxide solution, filtered and rotary evaporated to obtain a crude product, mixed the crude product with water, distilled until the distillate is a uniform phase, cooled the remaining product to room temperature, and freeze-dried to obtain an emulsifier.

4. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 3, characterized in that: The mass ratio of the 2-butyloctanol to the soy protein isolate is (1-4):

1.

5. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 3, characterized in that: The mass ratio of dodecylbenzenesulfonic acid to soy protein isolate is (0.07-0.12):

1.

6. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 1, characterized in that: The flavoring agents include eugenol, methyl salicylate, L-carvone and limonene.

7. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 1, characterized in that: The dispersant includes dispersant 123K and tristyrylphenol polyoxyethylene polyoxypropylene ether.

8. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 7, characterized in that: The mass ratio of the dispersant 123K to tristyrylphenol polyoxyethylene-polyoxypropylene ether is (0.8-1.5):

1.

9. The heat-sensitive antibacterial female vaginal lubricating emulsion gel according to claim 1, characterized in that: The sweetener is cyclamate; the preservatives include benzyl alcohol and benzoic acid; and the thickener is xanthan gum.

10. A method for preparing the thermosensitive antibacterial female vaginal lubricating emulsion gel according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: stirring and dissolving the plant extract and anhydrous ethanol at room temperature to form an oil phase, adding an emulsifier and half of purified water, and shearing them at a rotation speed of 7000-15000 rpm for 30-100 seconds; dissolving a sweetener, a preservative, a moisturizer, a thickener, a dispersant, a flavoring agent, and citric acid in the other half of the purified water, and mixing the two evenly to obtain an emulsion gel.

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