High-content silicone elastomer stable composition for lip cosmetics and preparation method of high-content silicone elastomer stable composition

Abstract

The invention discloses a high-content silicone elastomer stable composition for lip cosmetics and a preparation method of the high-content silicone elastomer stable composition, and relates to the technical field of cosmetics. The silicone elastomer composition comprises the following components: 25-35 wt% of a first silicone elastomer, 25-35 wt% of a second silicone elastomer, 1-3 wt% of film-forming wax, 1-2 wt% of an adhesive force polymer, 4-6 wt% of an emulsion stabilizer, 1-3 wt% of a structure stabilizer, 1-2 wt% of an auxiliary emulsifier, 1-2 wt% of a skin feeling conditioning agent and the balance of an oil phase matrix, wherein the first silicone elastomer comprises a polydimethylsiloxane / polydimethylsiloxane cross-linked polymer. The problems of agglomeration and caking of a high-content elastomer lip makeup system are solved, stable dispersion and uniform film forming of 60% or above of silicon elastomers are achieved for the first time through cooperation of a'skeleton + flexible layer 'double-silicon elastomer structure, the film forming wax and the adhesive force polymer, the lip adhesive force, the film forming property and the makeup holding effect are improved, smearing is fine and smooth, pulling and line accumulation are avoided, and the lip makeup effect is good. And a feasible formula framework and a process path are provided for the development of subsequent like products.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically a high-content silicone elastomer stabilized composition for lip cosmetics and its preparation method. Background Technology

[0002] Silicone elastomers are widely used in various makeup products due to their excellent soft-focus, film-forming, long-lasting, and matte effects. In lip cosmetics, an appropriate amount of silicone elastomer can improve the product's spreadability, adhesion, and makeup longevity. However, when the total silicone elastomer content increases to over 50%, the system is prone to the following technical problems: poor dispersion stability, with high-content elastomers easily repelling each other, forming obvious aggregates or particles, resulting in uneven product texture and a "silicone grain" feel during application; insufficient adhesion, with poor compatibility between elastomers and lip skin, easily forming "silicone flakes" or "powder" on the lips, leading to uneven coloring and poor makeup adherence; in high-oil-content systems, the elastomer network is difficult to stably encapsulate the oil phase, easily causing oil separation, affecting product storage stability and appearance; high elastomer content leads to increased system viscosity and decreased spreadability, resulting in a "cannot be stretched or spread" phenomenon, affecting the user experience; rough skin feel, making it difficult to achieve the delicate, smooth, and lightweight feel required by commercial lip products.

[0003] Currently, there is no lip cosmetic system on the market that can stably accommodate more than 60% silicone elastomer while also possessing good spreadability, adhesion, and stability. Therefore, developing a high-content, silicone elastomer-stabilized composition to solve the aforementioned technical problems has significant application value and market prospects.

[0004] The information disclosed above in this background section is only for enhancing the understanding of the background section of this invention, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a high-content silicone elastomer-stabilized composition for lip cosmetics and its preparation method, in order to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-content silicone elastomer stabilized composition for lip cosmetics, comprising the following components: 25-35 wt% of a first silicone elastomer, 25-35 wt% of a second silicone elastomer, 1-3 wt% of a film-forming wax, 1-2 wt% of an adhesion polymer, 4-6 wt% of an emulsification stabilizer, 1-3 wt% of a structural stabilizer, 1-2 wt% of an auxiliary emulsifier, 1-2 wt% of a skin feel modifier, and the balance being an oil phase matrix;

[0007] The first silicone elastomer comprises a polydimethylsiloxane / polydimethylsiloxane crosslinked polymer; the second silicone elastomer comprises a polydimethylsiloxane / polydimethylsiloxane-vinyl crosslinked polymer.

[0008] Preferably, the mass percentages of each component are: 30 wt% of the first silicone elastomer, 30 wt% of the second silicone elastomer, 2 wt% of the film-forming wax, 1 wt% of the adhesion polymer, 5 wt% of the emulsification stabilizer, 2 wt% of the structural stabilizer, 1 wt% of the auxiliary emulsifier, 1 wt% of the skin feel modifier, and the balance being the oil phase matrix.

[0009] Preferably, the film-forming wax is a VP / hexadecene copolymer.

[0010] Preferably, the adhesion polymer is a polyvinylpyrrolidone-vinyl acetate copolymer.

[0011] Preferably, the emulsifying stabilizer is polyglycerol-2 triisostearate.

[0012] Preferably, the structural stabilizer is a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer.

[0013] Preferably, the auxiliary emulsifier is sorbitan isostearate.

[0014] Preferably, the skin feel modifier is cetyl PEG / PPG-10 / 1 polydimethylsiloxane.

[0015] Preferably, the oil phase matrix is ​​polydimethylsiloxane and other silicone oils.

[0016] The present invention also provides a method for preparing a high-content silicone elastomer-stabilized composition for lip cosmetics as described above, comprising the following steps:

[0017] Step 1: Oil phase preparation

[0018] Add the oil phase matrix, first silicone elastomer, second silicone elastomer, film-forming wax, structural stabilizer, auxiliary emulsifier and skin feel modifier into the main emulsification pot, heat to 75-85℃, stir and mix at 300-500 rpm until completely dissolved and a homogeneous and transparent oil phase mixture is formed, and keep warm for later use.

[0019] Step 2: Aqueous phase preparation

[0020] Add deionized water, emulsion stabilizer and adhesion polymer to another container, heat to 70-80℃, and stir at 200-400 rpm until completely dissolved to obtain a clear aqueous phase;

[0021] Step 3: Emulsification and homogenization

[0022] Slowly add the aqueous phase obtained in step 2 to the oil phase obtained in step 1, keep the temperature at 75-80℃, first stir at 500-800 rpm for pre-emulsification, and then use a homogenizer to homogenize at 3000-5000 rpm for 3-5 minutes to form a fine and stable primary emulsion.

[0023] Step 4: Cooling and Adjustment

[0024] Cool the colostrum to 40-45℃, adjust the stirring speed to 200-400 rpm, add functional additives such as pigments, flavors, and preservatives as needed, and continue stirring until the system is completely homogeneous.

[0025] Step 5: Degassing and filling

[0026] The system was further cooled to room temperature, and bubbles were removed using a vacuum degassing device to obtain the final composition, which was then filled and packaged according to the product type.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. This invention solves the problem of aggregation and clumping in high-content elastomer lip makeup systems. Through the synergy of a "skeleton + flexible layer" dual silicone elastomer structure with film-forming wax and adhesion polymer, it achieves stable dispersion and uniform film formation of more than 60% silicone elastomer for the first time, improving lip adhesion, film formation and makeup lasting effect. The application is delicate, without pulling or creasing, and provides a feasible formulation structure and process path for the development of similar products in the future.

[0029] 2. The performance of the product of this invention has been comprehensively improved. Even with an extremely high content of silicone elastomer, it can still achieve smooth application, rapid film formation, and no heavy feeling. While maintaining a matte soft-focus effect, it significantly improves the durability, friction resistance, and transfer resistance of lip makeup. By finely adjusting the proportion of each component or adding functional ingredients, it can be easily adapted to various formulations such as lip mud, lip gloss, and matte lipstick, which has significant commercial value and can enhance the competitive barrier of brands. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a flowchart of the preparation process of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a high-content silicone elastomer-stabilized composition for lip cosmetics, comprising the following components: 25-35 wt% of a first silicone elastomer, 25-35 wt% of a second silicone elastomer, 1-3 wt% of a film-forming wax, 1-2 wt% of an adhesion polymer, 4-6 wt% of an emulsion stabilizer, 1-3 wt% of a structural stabilizer, 1-2 wt% of a co-emulsifier, 1-2 wt% of a skin feel modifier, and the balance being an oil phase matrix;

[0034] The first silicone elastomer comprises a polydimethylsiloxane / polydimethylsiloxane cross-linked polymer, which has short molecular chains, a rigid structure, and strong support, but weak flexibility and low skin adhesion, easily forming silicone agglomerates on the lips. It is used to construct the basic elastomer network framework. The second silicone elastomer comprises a polydimethylsiloxane / polydimethylsiloxane-vinyl cross-linked polymer, containing longer vinyl segments, higher elasticity, and greater compatibility with the oil phase and lip sebum. It can encapsulate and disperse the first silicone elastomer to enhance flexibility and structural stability. The two form a "skeleton + flexible layer" structure, with the first silicone elastomer forming the supporting skeleton and the second silicone elastomer filling the gaps and preventing repulsive aggregation, ultimately forming a uniform elastic network suitable for the lips.

[0035] The preferred mass percentages of each component are: 30 wt% of the first silicone elastomer, 30 wt% of the second silicone elastomer, 2 wt% of the film-forming wax, 1 wt% of the adhesion polymer, 5 wt% of the emulsion stabilizer, 2 wt% of the structural stabilizer, 1 wt% of the auxiliary emulsifier, 1 wt% of the skin feel modifier, and the balance being the oil phase matrix.

[0036] The film-forming wax uses VP / hexadecene copolymer to coat the elastomer network and enhance film continuity. It can enhance the adhesion and film-forming properties of elastomers on the lips, improve lip line fit, reduce creases, coat elastomer particles, inhibit agglomeration and silicone flakes, and allow high elastomer lip products to still maintain a smooth application feel.

[0037] The adhesion polymer is a polyvinylpyrrolidone-vinyl acetate copolymer, used to improve adhesion and inhibit transfer.

[0038] The emulsifying stabilizer used is polyglycerol-2 triisostearate, which is used to stabilize the system.

[0039] The structural stabilizer is a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer used to improve structural continuity.

[0040] The auxiliary emulsifier is sorbitan isostearate, used to assist in dispersion.

[0041] The skin feel modifier is a cetyl PEG / PPG-10 / 1 polydimethylsiloxane used to improve application and skin feel.

[0042] The oil phase matrix uses polydimethylsiloxane and other silicone oils.

[0043] The present invention also provides a method for preparing a high-content silicone elastomer-stabilized composition for use in lip cosmetics, comprising the following steps:

[0044] Step 1: Oil phase preparation

[0045] Add the oil phase matrix, first silicone elastomer, second silicone elastomer, film-forming wax, structural stabilizer, auxiliary emulsifier and skin feel modifier into the main emulsification pot, heat to 75-85℃, stir and mix at 300-500 rpm until completely dissolved and a homogeneous and transparent oil phase mixture is formed, and keep warm for later use.

[0046] Step 2: Aqueous phase preparation

[0047] Add deionized water, emulsion stabilizer and adhesion polymer to another container, heat to 70-80℃, and stir at 200-400 rpm until completely dissolved to obtain a clear aqueous phase;

[0048] Step 3: Emulsification and homogenization

[0049] Slowly add the aqueous phase obtained in step 2 to the oil phase obtained in step 1, keep the temperature at 75-80℃, first stir at 500-800 rpm for pre-emulsification, and then use a homogenizer to homogenize at 3000-5000 rpm for 3-5 minutes to form a fine and stable primary emulsion.

[0050] Step 4: Cooling and Adjustment

[0051] Cool the colostrum to 40-45℃, adjust the stirring speed to 200-400 rpm, add functional additives such as pigments, flavors, and preservatives as needed, and continue stirring until the system is completely homogeneous.

[0052] Step 5: Degassing and filling

[0053] The system was further cooled to room temperature, and bubbles were removed using a vacuum degassing device to obtain the final composition, which was then filled and packaged according to the product type.

[0054] This invention can be applied to various lip products such as lip mud, lip gloss, and matte lipstick. The following targeted treatments are performed during the specific preparation process:

[0055] 1. Preparation of lip mud composition: Weigh each component according to the above preferred ratio, and prepare according to steps 1 to 5 above. Add 2wt% spherical silica powder in step 4, homogenize, degas and fill to obtain a fine, uniform lip mud product with good extensibility.

[0056] 2. Preparation of lip gloss composition: Weigh each component according to the above preferred ratio, adjust the amount of structural stabilizer to 1wt%, and add 0.5wt% of polydimethylsiloxane crosslinking polymer as rheology modifier in step five to prepare a lip gloss product with moderate fluidity and uniform film formation.

[0057] 3. Preparation of matte lipstick: Weigh each component according to the above preferred ratio, prepare according to steps 1 to 5, fill into lipstick tubes, and place in an 8°C refrigerated environment to cure for 36 hours to obtain a matte lipstick with a smooth surface, firm texture, and smooth application.

[0058] Example 1

[0059] Prepare the following components:

[0060] First silicone elastomer: polydimethylsiloxane / polydimethylsiloxane cross-linked polymer, 30 wt%;

[0061] Second silicone elastomer: polydimethylsiloxane / polydimethylsiloxane-vinyl crosspolymer, 30 wt%;

[0062] Film-forming wax: VP / hexadecene copolymer, 2 wt%

[0063] Adhesion polymer: Polyvinylpyrrolidone-vinyl acetate copolymer, 1 wt%

[0064] Emulsion stabilizer: Polyglycerol-2 triisostearate, 5 wt%

[0065] Structure stabilizer: Vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer, 2 wt%;

[0066] Co-emulsifier: Sorbitan isostearate, 1 wt%

[0067] Skin feel modifier: Cetyl PEG / PPG-10 / 1 polydimethylsiloxane, 1 wt%

[0068] Oil phase matrix: polydimethylsiloxane, 28 wt.

[0069] Step 1: Oil phase preparation

[0070] Add the oil phase matrix, first silicone elastomer, second silicone elastomer, film-forming wax, structural stabilizer, auxiliary emulsifier and skin feel modifier into the main emulsification pot, heat to 80°C, stir and mix at 400 rpm until completely dissolved and a homogeneous and transparent oil phase mixture is formed, and keep warm for later use.

[0071] Step 2: Aqueous phase preparation

[0072] Add deionized water, emulsion stabilizer and adhesion polymer to another container, heat to 75°C, and stir at 300 rpm until completely dissolved to obtain a clear aqueous phase;

[0073] Step 3: Emulsification and homogenization

[0074] The aqueous phase obtained in step 2 is slowly added to the oil phase obtained in step 1, and the temperature is kept at 78°C. First, it is pre-emulsified by stirring at 650 rpm, and then homogenized at 4000 rpm for 4 minutes to form a fine and stable primary emulsion.

[0075] Step 4: Cooling and Adjustment

[0076] Cool the colostrum to 43°C, adjust the stirring speed to 300 rpm, add functional additives such as pigments, flavorings, and preservatives as needed, and continue stirring until the system is completely homogeneous.

[0077] Step 5: Degassing and filling

[0078] The system was further cooled to room temperature, and air bubbles were removed using a vacuum degassing device to obtain the final composition. The composition was then filled into lipstick tubes and placed in an 8°C refrigerated environment for 36 hours to cure, resulting in a matte lipstick with a smooth surface, firm texture, and smooth application.

[0079] Comparative Example 1: Verifying the Insufficient User Experience and Adhesion under a Single Silicon Elastomer System

[0080] The only difference between Comparative Example 1 and Example 1 is that the second silicone elastomer, film-forming wax and adhesion polymer are not added to the components, while the rest of the preparation process is the same as in Example 1.

[0081] Comparative Example 2: Verification shows that another single silicone elastomer system also fails to achieve the desired user experience.

[0082] The only difference between Comparative Example 2 and Example 1 is that the first silicone elastomer, film-forming wax and adhesion polymer are not added to the components, while the rest of the preparation process is the same as in Example 1.

[0083] Comparative Example 3: Verification of decreased film-forming continuity and structural stability in the absence of film-forming wax.

[0084] The only difference between Comparative Example 3 and Example 1 is that no film-forming wax is added to the components, while the rest of the preparation process is the same as in Example 1.

[0085] Comparative Example 4: Verification of insufficient adhesion and anti-transfer performance of polymers lacking adhesion.

[0086] The only difference between Comparative Example 4 and Example 1 is that no adhesion polymer is added to the components, while the rest of the preparation process is the same as in Example 1.

[0087] The following tests were performed on the embodiments and comparative examples under uniform testing conditions:

[0088] 1. Stability Test

[0089] (1) Centrifugal stability: Centrifuge at 3000 rpm for 30 minutes and observe whether there is stratification or oil separation;

[0090] (2) Thermal stability: Store at a constant temperature of 45℃ for 30 days and observe changes in appearance and texture;

[0091] (3) Cold and hot cycle: Store at 4℃ / 45℃ alternately for 7 days and assess the recoverability.

[0092] 2. Application performance test:

[0093] (1) Extensibility: Apply 0.05g of sample to artificial skin and measure the coverage area after it is evenly spread;

[0094] (2) Skin feel evaluation: 10 judges conducted a blind test to evaluate “silicone feel”, “pulling feel” and “smoothness” (out of 5).

[0095] 3. Adhesion and makeup lasting test:

[0096] (1) Adhesion: Two hours after application, gently press the lips with a tissue to observe the transfer.

[0097] (2) Color retention: After 4 hours of application, the color change (ΔE) was measured using a spectrophotometer;

[0098] (3) Water resistance: After spraying water, wipe lightly and assess whether the makeup comes off.

[0099] 4. Film-forming property evaluation:

[0100] (1) Film continuity: Observe under a microscope whether the film formation is uniform and free of cracks;

[0101] (2) Membrane flexibility: bend the artificial lip mold and observe whether it cracks.

[0102] The test results are shown in the table below.

[0103] Test Project Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Centrifugal stability No layering Obvious oil separation Slight oil separation No layering No layering Thermal stability (30 days) No abnormalities clumping The texture becomes coarser Slight oiliness Decreased adhesion Hot and cold cycle (7 days) Stable condition, excellent recovery Severe stratification, difficult to recover Slight stratification, slow recovery The texture thickened slightly Stable state Extended area (cm²) 18.5 12.3 13.8 16.2 17.1 Skin feel rating (out of 5) 4.5 2.8 3.0 3.8 4.0 Degree of metastasis (mild / moderate / severe) light Heavy middle middle middle Color retention ΔE (4h) 1.2 3.8 3.0 2.1 2.5 Water resistance Almost no shedding Completely detached Obvious detachment slight peeling Partial detachment Film formation continuity Uniform and crack-free Local reunion Local unevenness microcracks Good uniformity Membrane flexibility No cracking when bent Severe cracking after bending Slight cracking after bending Fine lines appear after bending. No cracking when bent

[0104] As can be seen from the above, Example 1 performed well in all tests, especially in terms of stability, extensibility, adhesion, water resistance, film continuity and film flexibility, which were significantly better than the comparative examples. This shows that the dual silicone elastomer structure of "skeleton + flexible layer", combined with film-forming wax and adhesion polymer, can effectively construct a uniform, stable and fit lip film layer, with strong environmental adaptability, waterproof and anti-detachment ability and flexible film-forming characteristics that fit the dynamic movement of the lips.

[0105] Comparative Examples 1 and 2, due to the use of only a single silicone elastomer, have poor system compatibility, are prone to agglomeration and oil separation, and exhibit significant deterioration in extensibility and skin feel. They also show serious phase separation and recovery problems during hot and cold cycles. Furthermore, due to their non-uniform structure, their film-forming flexibility and water resistance are extremely poor, and they detach upon contact with water.

[0106] Comparative Example 3 lacked film-forming wax. Although the film layer had a certain basic adhesion, it was prone to fine lines in the bending test due to insufficient film continuity, and the water resistance also decreased. This proves that film-forming wax plays a key role in the integrity and mechanical strength of the film layer.

[0107] Although Comparative Example 4 formed a good film, the lack of an adhesion polymer resulted in significant color transfer and poor color retention. It performed well in thermal cycling and flexibility tests, indicating a complete basic film structure. However, its water resistance was significantly inferior to Example 1, verifying the core value of the adhesion polymer in improving the adhesion between the film and the lip stratum corneum and resisting water erosion.

[0108] In summary, this invention systematically solves multiple technical bottlenecks in high-content silicone elastomer systems in terms of physical stability, skin feel, makeup holding performance, and environmental tolerance by constructing a "skeleton-flexible" network in synergy with a first silicone elastomer and a second silicone elastomer, supplemented by a film-forming wax to enhance continuity and adhesion, and a polymer to improve interfacial bonding. This results in a comprehensive breakthrough in performance.

[0109] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high content silicone elastomer stable composition for lip makeup characterized in that, The composition comprises the following components: 25-35 wt% of a first silicone elastomer, 25-35 wt% of a second silicone elastomer, 1-3 wt% of a film-forming wax, 1-2 wt% of an adhesion polymer, 4-6 wt% of an emulsion stabilizer, 1-3 wt% of a structure stabilizer, 1-2 wt% of an auxiliary emulsifier, 1-2 wt% of a skin feel modifier, and a balance of an oil phase base; The first silicone elastomer comprises a dimethicone / dimethicone crosspolymer; and the second silicone elastomer comprises a dimethicone / dimethicone-vinyl crosspolymer.

2. A high content silicone elastomer stable composition for lip makeup according to claim 1 characterized in that: The mass percentage of each component is: 30 wt% of the first silicone elastomer, 30 wt% of the second silicone elastomer, 2 wt% of the film-forming wax, 1 wt% of the adhesion polymer, 5 wt% of the emulsion stabilizer, 2 wt% of the structure stabilizer, 1 wt% of the auxiliary emulsifier, 1 wt% of the skin feel modifier, and a balance of the oil phase base.

3. A high content silicone elastomer stable composition for lip makeup according to claim 2, characterized in that: The film-forming wax is a VP / hexadecene copolymer.

4. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The adhesion polymer is a polyvinylpyrrolidone-vinyl acetate copolymer.

5. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The emulsion stabilizer is a polyglyceryl-2 triisostearate.

6. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The structure stabilizer is a vinyl dimethicone / methicone silsesquioxane crosspolymer.

7. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The auxiliary emulsifier is sorbitan isostearate.

8. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The skin feel modifier is a cetyl PEG / PPG-10 / 1 dimethicone.

9. A high content silicone elastomer stable composition for lip cosmetics according to claim 2, characterized in that: The oil phase base is dimethicone and other silicone oils.

10. Process for the preparation of a high content silicone elastomer stable composition for lip make-up according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: Step 1: Preparation of an oil phase The oil phase base, the first silicone elastomer, the second silicone elastomer, the film-forming wax, the structure stabilizer, the auxiliary emulsifier, and the skin feel modifier are put into a main emulsifying kettle, heated to 75-85°C, and stirred at a speed of 300-500 rpm until completely dissolved and a uniform transparent oil phase mixture is formed, and then kept warm for standby; Step 2: Preparation of an aqueous phase Deionized water, the emulsion stabilizer, and the adhesion polymer are added to another container, heated to 70-80°C, and stirred at a speed of 200-400 rpm until completely dissolved to obtain a clear aqueous phase; Step 3: Emulsification and homogenization The aqueous phase obtained in step 2 is slowly added to the oil phase obtained in step 1, the temperature is kept at 75-80°C, and pre-emulsification is performed by stirring at a speed of 500-800 rpm, and then homogenization is performed by using a homogenizer at a speed of 3000-5000 rpm for 3-5 minutes to form a fine and stable primary emulsion; Step 4: Cooling and adjustment The primary emulsion is cooled to 40-45°C, the stirring speed is adjusted to 200-400 rpm, and functional additives are added as needed, and the system is continuously stirred until it is completely uniform; Step 5: Defoaming and filling The system is further cooled to room temperature, and a vacuum defoaming device is used to remove air bubbles to obtain the final composition, and then filling and packaging are performed according to the product type.

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