Refractive and transparent raw material based on siloxane compounding and preparation method of refractive and transparent raw material

Abstract

The invention discloses a refractive and transparent raw material based on siloxane compounding and a preparation method of the refractive and transparent raw material. Comprising phenyl polytrimethylsiloxane, a VP / eicosene copolymer, diphenyl polydimethylsiloxane, hydrogenated polyisobutene, trimethyl pentaphenyl trisiloxane, trimethyl silane oxygen phenyl polydimethylsiloxane, a VP / hexadecene copolymer, polyisobutene and diisostearyl malate. According to the invention, a unique refraction system can be formed in lip and base products by reasonably proportioning a plurality of organosilicon compounds and copolymers with different refraction characteristics. The components can scatter and reflect light from multiple angles, so that the skin and the lips present natural, soft and layered gloss, and the refraction and transparency effects of the product are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, specifically to a siloxane-based refractive and translucent raw material and its preparation method. Background Technology

[0002] In the cosmetics industry, consumers are increasingly demanding higher levels of finish from lip and base makeup products. A luminous, translucent finish can give skin and lips a natural glow, a fuller, and more three-dimensional look, enhancing the overall texture of the makeup. However, existing cosmetic ingredients have certain limitations in achieving this luminous effect. For example: 1. Some raw materials have limited refractive properties and cannot scatter and reflect light in all directions, making it difficult to achieve the ideal level of transparency and gloss.

[0003] 2. Some raw materials are not compatible with other ingredients, and problems such as layering and precipitation may occur during the compounding process, affecting product stability and efficacy.

[0004] 3. Some ingredients, while possessing a certain degree of light refraction, are not long-lasting, and the light-refraction and luminosity of the makeup effect gradually weaken over time.

[0005] Therefore, developing a new type of compound light-reflecting and translucent raw material and its production process to meet the cosmetics industry's demand for high-quality, high-performance raw materials is of great practical significance. Summary of the Invention

[0006] The technical problem solved by this invention is to provide a cosmetic raw material with high refractive index and bright makeup effect through the compounding of specific siloxanes and polymers, and the preparation method thereof.

[0007] The technical solution adopted by this invention to solve its technical problem is: A method for preparing a refractory transparent raw material based on siloxane complex includes the following steps: S1: Premixing: First, add hydrogenated polyisobutylene to a melting pot equipped with a stirrer and stir at a low speed of 50-80 r / min. During the stirring process, slowly add VP / eicosene copolymer, heat the temperature to 60-70 degrees, and continue stirring for 15-25 minutes to make the two initially mixed evenly. S2: Main Mixing: Keep the mixing pot stirred, and add phenyl polytrimethylsiloxane, diphenyl polydimethylsiloxane, trimethylpentaphenyltrisiloxane, trimethylsiloxane-oxyphenyl polydimethylsiloxane, VP / hexadecene copolymer, polyisobutylene, and diisostearyl malate in sequence; after each addition of raw material, continue stirring for 10-15 minutes, and maintain the temperature at 60-70 degrees Celsius to ensure that the newly added raw material is fully mixed with the previous mixture; S3: Degassing treatment: Transfer the uniformly mixed compound raw materials to a vacuum degassing device and degas for 15-25 minutes under a vacuum of -0.08 to -0.1 MPa to remove air bubbles mixed in during the mixing process. S4: Testing: Conduct quality tests on the refractive index, transmittance, and stability of the degassed compound raw materials; S5: Packaging: After passing the inspection, the raw materials will be packaged according to the prescribed packaging specifications.

[0008] Furthermore, before step S1, each raw material is accurately weighed according to the required mass percentage, and all raw materials are placed in clean, dry and sterilized storage containers for later use.

[0009] Furthermore, in step S2, after all the raw materials have been added, the stirring speed is increased to 100-150 r / min, and stirring is continued for 30-45 minutes to ensure that the compound raw materials are uniformly dispersed.

[0010] Furthermore, in step S5, aseptic packaging is used for packaging.

[0011] A refractory and transparent raw material based on siloxane compound, prepared according to the above preparation method, includes: phenyl polytrimethylsiloxane, VP / eicosene copolymer, diphenyl polydimethylsiloxane, hydrogenated polyisobutylene, trimethylpentaphenyltrisiloxane, trimethylsiloxaneoxyphenyl polydimethylsiloxane, VP / hexadecene copolymer, polyisobutylene, and diisostearyl malate.

[0012] Furthermore, the mass percentages of phenyl polytrimethylsiloxane:VP / eicosene copolymer: diphenyl polydimethylsiloxane: hydrogenated polyisobutylene: trimethylpentaphenyltrisiloxane: trimethylsiloxane oxyphenyl polydimethylsiloxane:VP / hexadecene copolymer: polyisobutylene: diisostearyl malate are 10-25%: 0-5%: 10-25%: 10-15%: 10-25%: 10-20%: 5-20%: 0-20%: 0-10%.

[0013] This invention, through the rational formulation of various organosilicon compounds and copolymers with different refractive properties, can form a unique refractive system in lip and base makeup products. These components can scatter and reflect light from multiple angles, giving the skin and lips a natural, soft, and layered luster, significantly enhancing the product's light-reflecting and translucent effects.

[0014] The compound raw materials of this invention possess excellent compatibility and stability. Through a special production process, the raw materials can be fully integrated to form a stable dispersion system. When compounded with other cosmetic ingredients, it exhibits good compatibility and is less prone to problems such as layering or sedimentation, ensuring the stability of the product during storage and use.

[0015] The compound ingredients of this invention have the advantage of long-lasting makeup effect. When the compound ingredients of this invention are applied to lip and base makeup products, they can form a uniform and long-lasting film on the skin surface, effectively maintaining the light-reflecting and translucent effect. Even after long-term wear and external environmental influences, the makeup effect can still remain relatively stable and is not easy to fade or lose its luster. Attached Figure Description

[0016] Figure 1 This is a process flow diagram of the present invention; Detailed Implementation

[0017] To make the above-mentioned contents, objectives, and beneficial effects of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] This invention provides a luminescent raw material based on a siloxane compound, comprising the following components by weight percentage: Phenylated polytrimethylsiloxane (10-25%), VP / eicosene copolymer (0-5%), diphenylpolydimethylsiloxane (10-25%), hydrogenated polyisobutylene (10-15%), trimethylpentaphenyltrisiloxane (10-25%), trimethylsiloxaneoxyphenylpolydimethylsiloxane (10-20%), VP / hexadecene copolymer (5-20%), polyisobutylene (0-20%), diisostearyl malate (0-10%).

[0020] in: Phenylated polytrimethylsiloxane, in liquid form with a refractive index of 1.46, is used as a emollient, solvent, and conditioning agent. It enhances the gloss of products, is highly hydrophobic, and provides water and sweat resistance. Compared to other silicone oils (such as dimethylsiloxane), the introduction of phenyl groups improves compatibility with the skin's natural oils, making it suitable for sensitive skin or low-irritant formulations. The addition of phenyltrimethylsiloxane can also enhance the shine of products.

[0021] VP / eicosene copolymer, in solid form, is used as a film-forming agent, thickener, and setting agent. VP / eicosene copolymer forms a lightweight yet long-lasting film, reducing the "hard shell" feel and maintaining a natural touch; the resulting film is hydrophobic. The addition of VP / eicosene copolymer can form a film within the product, providing a makeup-holding effect and allowing the product to maintain its shine for a longer period.

[0022] Diphenylpolydimethylsiloxane, in liquid form with a refractive index of 1.505, is used as a emollient, solvent, and conditioning agent. As a silicone oil derivative, diphenylpolydimethylsiloxane can quickly form a thin, smooth film, thereby reducing the stickiness of products and improving the smoothness of application. Diphenylpolydimethylsiloxane can also act as a moisture barrier, helping to reduce moisture evaporation, enhancing the longevity of moisturizing, and reducing oiliness. Simultaneously, diphenylpolydimethylsiloxane can increase the refractive index of light, giving the skin a natural glow. The addition of diphenylpolydimethylsiloxane can enhance the brightness of products.

[0023] Hydrogenated polyisobutylene, in liquid form with a refractive index of 1.46, is used as a emollient and solvent. It provides a lightweight, non-greasy moisturizing effect, enhancing skin softness. Simultaneously, it forms a breathable film on the skin surface, reducing moisture loss.

[0024] Trimethylpentaphenyltrisiloxane, in liquid form with a refractive index of 1.58, is used as a emollient and solvent. The phenyl structure in trimethylpentaphenyltrisiloxane imparts a high refractive index, higher than that of ordinary silicone oils, thus giving lipsticks or other cosmetics a bright, glossy finish. Furthermore, trimethylpentaphenyltrisiloxane has a lightweight texture and excellent spreadability, reducing the stickiness of cosmetics and improving application smoothness. The addition of trimethylpentaphenyltrisiloxane can also enhance the shine of products.

[0025] Trimethylsiloxane, a liquid with a refractive index of 1.47, is used as a emollient and film-forming agent. It imparts a silky, soft feel to the skin, reduces friction, and makes the skin feel smooth. Simultaneously, it enhances luster and increases surface shine. Trimethylsiloxane possesses certain water and oil resistance, helping cosmetics form a waterproof film and prolonging makeup wear. The addition of trimethylsiloxane can further enhance the product's brightness.

[0026] VP / hexadecene copolymer, in liquid form, acts as a emollient and film-forming agent. VP / hexadecene copolymer facilitates film formation, resulting in a film with certain water resistance, thus achieving waterproof and sweatproof properties in cosmetics and enhancing makeup longevity. It also improves color adhesion and smoothness. The addition of VP / hexadecene copolymer not only enhances product brightness but also forms a film that allows the product to maintain its shine for a longer period.

[0027] Polyisobutylene (POB), in liquid form, is used as a thickener, film-forming agent, and adhesive. PIB can increase the viscosity and consistency of cosmetic products, improving their flowability. Simultaneously, it enhances the adhesion of cosmetics, effectively preventing color transfer or fading. Furthermore, it forms a soft, waterproof film, enhancing the product's water resistance and durability. The addition of PIB not only improves the product's brightness but also forms a film that allows the product to maintain its shine for a longer period. Diisostearyl malate, in liquid form with a refractive index of 1.46, is used as a emollient. As a cost-effective skin feel improver, diisostearyl malate offers advantages such as a silky texture, low irritation, and formula stability. This allows cosmetics to achieve a lightweight, velvety feel, enhancing product quality. The addition of diisostearyl malate can further enhance the product's brightness.

[0028] This invention also provides a method for preparing a refractory and transparent raw material based on siloxane complex, comprising the following steps: S1: Premixing: First, add hydrogenated polyisobutylene to a melting pot equipped with a stirrer and stir at a low speed of 50-80 rpm. During stirring, slowly add VP / eicosene copolymer, heat to 60-70 degrees Celsius, and continue stirring for 15-25 minutes to make the two initially mixed evenly.

[0029] The purpose of premixing is to dissolve the VP / eicosene copolymer and shorten the heating time in the next step.

[0030] S2: Main mixing: Keep the melting pot stirring and add phenyl polytrimethylsiloxane, diphenyl polydimethylsiloxane, trimethylpentaphenyltrisiloxane, trimethylsiloxane-oxyphenyl polydimethylsiloxane, VP / hexadecene copolymer, polyisobutylene, and diisostearyl malate in sequence.

[0031] Furthermore, after each ingredient is added, continue stirring for 10-15 minutes, maintaining the temperature at 60-70 degrees Celsius, to ensure that the newly added ingredient is fully mixed with the previous mixture. After all ingredients have been added, increase the stirring speed to 100-150 rpm and stir for 30-45 minutes to achieve a uniform dispersion of the compound ingredients, while maintaining the temperature at 60-70 degrees Celsius.

[0032] S3: Degassing: Transfer the uniformly mixed compound raw materials to a vacuum degassing device and degas for 15-25 minutes under a vacuum of -0.08 to 0.1 MPa to remove air bubbles mixed in during the mixing process and ensure the product has a fine texture.

[0033] S4: Testing: Conduct quality testing on the degassed compound raw materials, including testing of indicators such as refractive index, transmittance, and stability.

[0034] S5: Packaging: After passing the inspection, the raw materials shall be packaged in accordance with the prescribed packaging specifications using aseptic packaging methods and stored in a cool, dry place.

[0035] Before step S1, the raw materials need to be prepared: accurately weigh each raw material according to the above-mentioned mass percentages to ensure that the purity of the raw materials meets the cosmetic production standards. Place all raw materials in clean, dry storage containers that have undergone strict sterilization for later use. Example

[0036] Raw material ratio: 25% phenyl polytrimethylsiloxane, 2% VP / eicosene copolymer, 20% diphenyl polydimethylsiloxane, 3% hydrogenated polyisobutylene, 15% trimethylpentaphenyltrisiloxane, 12% trimethylsiloxane-oxyphenyl polydimethylsiloxane, 1% diisostearyl malate, 8% polyisobutylene, 14% VP / hexadecene copolymer.

[0037] Production process: Preparation stage: Accurately weigh each raw material and store them separately in containers that meet the requirements.

[0038] Premixing step: Add hydrogenated polyisobutylene to the reactor and stir at 60 r / min. Slowly add diphenyl polydimethylsiloxane and stir for 20 minutes.

[0039] Main mixing stage: Add other ingredients in sequence, stirring for 12 minutes after each addition. After all ingredients are added, increase the speed to 120 r / min and stir for 40 minutes, maintaining a temperature of 60-70 degrees Celsius.

[0040] Degassing treatment: Degas for 20 minutes under a vacuum of -0.09MPa.

[0041] Testing and Packaging: Packaging is carried out after passing the inspection. Example

[0042] Raw material ratio: 15% phenyl polytrimethylsiloxane, 3% VP / eicosene copolymer, 25% diphenyl polydimethylsiloxane, 5% hydrogenated polyisobutylene, 14% trimethylpentaphenyltrisiloxane, 15% trimethylsiloxane-oxyphenyl polydimethylsiloxane, 8% polyisobutylene, 2% diisostearyl malate, and 13% VP / hexadecene copolymer.

[0043] Production process: basically the same as in Example 1, with only slight adjustments to the stirring speed and time. During premixing, the speed is 70 r / min and the stirring time is 22 minutes. During the main mixing stage, the stirring time is 13 minutes when adding raw materials, and after all the raw materials are added, the speed is 130 r / min and the stirring time is 35 minutes. Degassing is carried out under a vacuum of -0.085 MPa for 22 minutes, while maintaining a temperature of 60-70 degrees Celsius.

[0044] Commonly available single refractive raw materials (such as phenyl polytrimethylsiloxane as the refractive ingredient) were added to lip and base makeup products in the same amount and compared with the compound raw materials prepared in Examples 1 and 2 of this invention.

[0045] Test items: Light-reflecting and translucent effect: Using a professional gloss tester, the gloss of the lips and skin surface after applying products with different raw materials was tested under the same conditions. in: Single oil A: Octyl polymethylsiloxane; Single oil B: Cyclopentamethoxysilane; Single oil C: Polyglycerol-2 triisostearate.

[0046] Stability: Implementation Case 1 and Implementation Case 2 were placed in environments with different temperatures (4℃, 25℃, 40℃) and humidity (30%RH, 50%RH, 70%RH) to observe whether the products exhibited phenomena such as stratification or sedimentation, and the time when instability occurred was recorded. Longevity: Volunteers were invited to use the product and record how long it maintained its luminous and translucent effect on the lips and skin. in: The comparative examples are: octyl polymethylsiloxane, polyglycerol-2 triisostearate and other single oils.

[0047] The test results are as follows: Light refraction and transparency effect: The gloss of the compound raw material products in Examples 1 and 2 is significantly higher than that of the comparative example, presenting a more natural and richer light refraction effect.

[0048] Stability: The comparative product showed stratification in a short period of time (3-5 days) under high temperature and high humidity conditions, while the products of Example 1 and Example 2 remained stable after being placed in the same environment for 30 days.

[0049] Durability: The light-reflecting and translucent effect of the comparative products was maintained for an average of 2-3 hours, while the products of Example 1 and Example 2 maintained the effect for 6-8 hours.

[0050] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a refractory and transparent raw material based on siloxane compounding, characterized in that: Includes the following steps: S1: Premixing: First, add hydrogenated polyisobutylene to a melting pot equipped with a stirrer and stir at a low speed of 50-80 r / min. During the stirring process, slowly add VP / eicosene copolymer, heat the temperature to 60-70 degrees, and continue stirring for 15-25 minutes to make the two initially mixed evenly. S2: Main Mixing: Keep the mixing pot under stirring, and add phenyl polytrimethylsiloxane, diphenyl polydimethylsiloxane, trimethylpentaphenyltrisiloxane, trimethylsiloxane-oxyphenyl polydimethylsiloxane, VP / hexadecene copolymer, polyisobutylene, and diisostearyl malate in sequence; after each addition of raw material, continue stirring for 10-15 minutes, and maintain the temperature at 60-70 degrees Celsius to ensure that the newly added raw material is fully mixed with the previous mixture; S3: Degassing treatment: Transfer the uniformly mixed compound raw materials to a vacuum degassing device and degas for 15-25 minutes under a vacuum of -0.08 to 0.1 MPa to remove air bubbles mixed in during the mixing process. S4: Testing: Conduct quality tests on the refractive index, transmittance, and stability of the degassed compound raw materials; S5: Packaging: After passing the inspection, the raw materials will be packaged according to the prescribed packaging specifications.

2. The method for preparing a refractory and transparent raw material based on siloxane compounding according to claim 1, characterized in that: Before step S1, accurately weigh each raw material according to the required mass percentage, and place all raw materials in clean, dry and sterilized storage containers for later use.

3. The method for preparing a refractory and transparent raw material based on siloxane compounding according to claim 1, characterized in that: In step S2, after all the raw materials have been added, increase the stirring speed to 100-150 r / min and continue stirring for 30-45 minutes to make the compound raw materials reach a uniform dispersion state.

4. The method for preparing a refractory and transparent raw material based on siloxane compounding according to claim 1, characterized in that: In step S5, aseptic packaging is used for packaging.

5. A refractive and transparent raw material based on siloxane compounding, characterized in that: The product prepared according to the preparation method of any one of claims 1-4 comprises: phenyl polytrimethylsiloxane, VP / eicosene copolymer, diphenyl polydimethylsiloxane, hydrogenated polyisobutylene, trimethylpentaphenyltrisiloxane, trimethylsiloxane-oxyphenyl polydimethylsiloxane, VP / hexadecene copolymer, polyisobutylene, and diisostearyl malate.

6. The refractory and transparent raw material based on siloxane compounding according to claim 5, characterized in that: The mass percentages of the following components are respectively: phenyl polytrimethylsiloxane: VP / eicosene copolymer: diphenyl polydimethylsiloxane: hydrogenated polyisobutylene: trimethylpentaphenyltrisiloxane: trimethylsiloxane oxyphenyl polydimethylsiloxane: VP / hexadecene copolymer: polyisobutylene: diisostearyl malate: 10-25%: 0-5%: 10-25%: 10-15%: 10-25%: 10-20%: 5-20%: 0-20%: 0-10%.

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