Novel light and thin skin-fitting pressed powder and preparation method thereof
Through a compound formula and multi-step preparation process, the new light and thin skin-fitting powder solves the problems of insufficient concealing power and makeup effect in the preparation of traditional powder, achieving a light, non-floating powder effect with good concealing power and makeup effect, which is in line with the trend of skin-care makeup.
Patent Information
- Application Number
- CN202510945675.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-10-03
AI Technical Summary
The existing powder preparation process makes it difficult to achieve lightness, no powder floating, good concealing power and makeup effect at the same time, and the traditional freeze-drying process lacks significant improvement in makeup effect.
A new type of lightweight skin-friendly powder is prepared by adopting a composite formula of powder components, oil phase components and gel components, combined with two drying steps at different temperatures, including low-temperature freezing and gradient temperature-controlled drying. The synergistic effect of components such as barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer and wrinkle-shaped chondrus crispus extract is utilized to enhance concealing power and makeup effect.
The prepared powder cake retains its light and thin characteristics while significantly improving the concealing power and makeup effect. After makeup, the skin surface is smooth and integrated, the powdery texture is reduced, it has an optical beauty effect, and has skin-nourishing functions.
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cosmetics, and in particular to a novel light and thin skin-adhering powder and a preparation method thereof. Background Art
[0002] Pressed powder, with its concealing, adhesion, coloring, and finishing functions, is widely used in both daily makeup creation and touch-ups, occupying a significant position in the cosmetics market. As consumers' expectations for cosmetic product quality continue to rise, the formulation and production process of pressed powder are becoming increasingly critical.
[0003] In the related art, common pressed powder preparation processes include pressing, baking, and freeze-drying. Different preparation processes have a significant impact on the quality and performance of pressed powder. The pressing process compacts the raw materials into shape by applying pressure, resulting in a powdery texture and a tendency for powder to fly off during use. The baking process uses baking to solidify the pressed powder, resulting in relatively poor color rendering and limited styling, making it difficult to create delicate and complex shapes. The freeze-drying process freezes the raw materials in a low-temperature environment, which can give the pressed powder a lighter texture and effectively avoid the problem of powder floating, but does not significantly improve the makeup effect. Summary of the Invention
[0004] In order to provide a new powder preparation process, the present application provides a new type of light and thin skin-fitting powder and its preparation method, which retains the advantages of lightness and non-floating powder in the traditional freeze-drying process, while at the same time the concealing power of the powder is improved, and the relative flatness and integrity of the skin surface after makeup are reduced. The powdery feel of the makeup surface is reduced, and the visual soft focus is improved through the conversion of light paths, thereby achieving the effect of optical beauty.
[0005] This application provides a novel light and thin skin-fitting powder and a preparation method thereof, which adopts the following technical solutions: In the first aspect, the present application provides a novel light and thin skin-fitting powder cake, which adopts the following technical solution: A new type of light and thin skin-friendly powder, composed of powder component, oil phase component and gel component; The powder component comprises the following components in parts by mass: 10-50 parts of mica; 10-70 parts of synthetic fluorphlogopite; 10-50 parts of silica; 1-30 parts of vinyl dimethicone / methicone silsesquioxane crosspolymer; 1-10 parts of boron nitride; 1-10 parts of barium sulfate; 1-10 parts of bismuth oxychloride; 1-10 parts of polymethyl methacrylate cross-linked polymer; 0.1-10 parts of silica silylate; 0.4-13 parts of colorant; The oil phase component comprises the following components in parts by weight: 0.1-5 parts of squalane; 0.1-5 parts of octyldodecyl stearoyl stearate; 0.1-5 parts of cetyl ethylhexanoate; 0.1-5 parts of glycerin; 0.1-5 parts of 1,3-butanediol; The gel component comprises the following components in parts by mass: 0.1-2 parts of xanthan gum; 0.1-2 parts of Chondrus crispus extract; Polysorbate 80 0.1-5 parts; Caprylyl glycol 0.1-1 part; Ethylhexylglycerin 0.1-1 part; 15-60 parts water.
[0006] Optionally, the powder component, oil phase component and gel component are calculated by mass percentage as follows: the powder component is 30%-45%, the oil phase component is 15%-20%, and the gel component is 40%-50%.
[0007] By adopting the above technical scheme, under the joint action of the powder component, the oil phase component and the gel component, especially when the six components of barium sulfate, chloride oxide, bismuth boron nitride and polymethyl methacrylate cross-linked polymer, xanthan gum and crispy chondrus crispus extract are used together in the powder, the obtained powder has a soft focus value of 45.65-47.82, a skin-fitting score of 4.7-4.9, a soft focus score of 4.6-5.0, a concealing power score of 4.5-4.9, and a makeup lasting effect score of 4.6-4.8, with good comprehensive performance; the obtained powder retains the advantages of being light and thin and not floating in the traditional freeze-drying process, and at the same time the concealing power of the powder is improved. The relative smoothness of the skin surface and the integrity of the sheet after makeup not only reduce the powdery feel of the makeup surface, but also improve the visual soft focus through the conversion of light paths, thereby achieving the effect of optical beauty.
[0008] Optionally, the colorant comprises the following components in parts by mass: 0.1-5 parts of titanium dioxide; 0.1-5 parts of iron oxide yellow; 0.1-2 parts of red iron oxide; Iron oxide black 0.1-1 part.
[0009] By adopting the above technical solution, the four colorants of titanium dioxide, iron oxide yellow, iron oxide red and iron oxide black are used in combination to prepare a variety of powder colors (such as fair, natural, warm yellow, and deep skin), covering the needs of different skin colors and improving the applicability of the product.
[0010] In a second aspect, the present application provides a method for preparing a novel light and thin skin-friendly pressed powder, which adopts the following technical solution: A novel method for preparing a light and thin skin-friendly pressed powder comprises the following steps: S1. Mixing mica, synthetic fluorphlogopite, silica, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, boron nitride, barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer, silica silylate, and a colorant, and grinding the mixture to obtain a powder component; S2. Add the oil phase component and the gel component in sequence, control the temperature to 70-80°C and stir until uniform, to obtain a mixture of the oil phase component and the gel component; The oil phase components are squalane, octyldodecanol stearyloxystearate, cetyl ethylhexanoate, glycerin and 1,3-butylene glycol; The gel components are xanthan gum, Chondrus crispus extract, polysorbate 80, caprylyl glycol, ethylhexylglycerin and water; S3, adding the powder component to the mixture of the oil phase component and the gel component, controlling the temperature to 70-80°C and stirring until mixed, and then cooling to 25-30°C to obtain a powder base; S4, introducing the powder base into a pressing mold for pressing to obtain a powder block; S5, freezing the powder block at a temperature of (-50)-(-30)°C for 1-5 hours to obtain a frozen powder block; S6. Gasify and dry the frozen powder cake, control the vacuum degree to ≤10Pa, control the temperature to be (-50)-(-30)℃ and dry it for 8-12h to obtain the first dried powder cake; S7, performing secondary drying on the powder cake obtained by the first drying, controlling the temperature to be 25-60° C. and drying for 2-6 hours to obtain a powder cake product.
[0011] By adopting the above technical solution, after two drying steps at different temperatures, the internal structure of the powder changes, which increases the density and stability of the powder particle arrangement, thereby helping to improve the covering power and color rendering of the powder cake, so that the powder cake retains the advantage of being light and close to the skin while also having the effect of better concealing blemishes and modifying skin tone; at the same time, the dense arrangement structure can also provide a film-forming effect similar to that on the skin surface, so that the powder of the powder cake is better integrated with the foundation products and the skin, the presence of powder particles is not easily felt in the makeup effect, it is more delicate and close to the skin, and the makeup lasting power is also significantly improved.
[0012] Furthermore, the gradient temperature control technology used in the preparation process is more conducive to the activation and maintenance of the activity of skin-nourishing ingredients. The resulting powder not only has good makeup effect, but also can nourish the skin, which is in line with the current mainstream trend of "skin-nourishing makeup".
[0013] Optionally, in S1, the particle size of the powder component is controlled to be 5-20 μm.
[0014] By adopting the above-mentioned technical solution, the particle size range of the powder component is controlled within 5-20μm, which helps to improve the fit of the powder to the skin and reduce the powdery and heavy feeling. In addition, the particles within this particle size range scatter and reflect visible light more evenly, which helps to improve the covering power of the powder and make the makeup appear soft-focus.
[0015] Optionally, in S4, the pressing pressure is 3-6 kgf / cm², and the pressing time is 1-10 s.
[0016] By adopting the above technical solution, the forming strength of the powder cake can be guaranteed, and the moderate looseness can be retained to facilitate powder removal, making the powder cake feel good when used.
[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. The pressed powder obtained in this application has a soft focus value of 45.65-47.82, a skin-fitting score of 4.7-4.9, a soft focus score of 4.6-5.0, a concealing power score of 4.5-4.9, and a makeup lasting effect score of 4.6-4.8, with good comprehensive performance; the pressed powder obtained retains the advantages of being light and thin and not floating in the traditional freeze-drying process, while at the same time improving the concealing power of the pressed powder. The relative flatness and sheet-like integrity of the skin surface after makeup not only reduce the powdery feel of the makeup surface, but also improve the visual soft focus through the conversion of light paths, achieving the effect of optical beauty; 2. In the preparation method of the pressed powder of the present application, two drying steps at different temperatures are performed, which helps to improve the covering power and color rendering of the pressed powder, so that the pressed powder retains the advantages of being light and close to the skin while also having the effect of better concealing blemishes and modifying skin tone; 3. During the preparation of the powder cake of the present application, the gradient temperature control technology is adopted, which is more conducive to the activation and maintenance of the activity of the skin-nourishing ingredients. The resulting powder cake not only has a good makeup effect, but also nourishes the skin, which is in line with the current mainstream trend of "skin-nourishing makeup". DETAILED DESCRIPTION
[0018] The present application is further described in detail below with reference to the embodiments, but the present application is not limited thereto.
[0019] The names, specifications or product numbers and manufacturer or supplier information of the raw materials used in the examples of this application are shown in Table 1 below. Unless otherwise specified below, all are commercially available. Table 1 Special reagent information table Reagent name Specifications / Product Number Manufacturer / Supplier Mica Y-1800 Shenglangde (Shanghai) Biotechnology Co., Ltd. Synthetic fluorphlogopite SynthMica W10 Guangzhou Haoji Biotechnology Co., Ltd. silica SPHERILEX 10 PC Evonik Specialty Chemicals (Shanghai) Co., Ltd. Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer KSP101 Topco (Shanghai) Co., Ltd. Polymethyl methacrylate crosspolymer SUNPMMA-P Shanghai Yixin Chemical Co., Ltd. Silica silylate AEROSIL R 812 S Evonik Specialty Chemicals (Shanghai) Co., Ltd. Squalane Neossance™ Squalane Shanghai Ruixi Trading Co., Ltd. Octyldodecyl stearoyl stearate DUB SSOD Shanghai Dingyun Chemical Trading Co., Ltd. Cetyl Ethylhexanoate PaesterTM CSEH Shanghai Ronghai Biotechnology Co., Ltd. Xanthan gum KELCOGEL® CG-T Azelis International Trading (Shanghai) Co., Ltd. Chondrus Crispus Extract CG-131 Azelis International Trading (Shanghai) Co., Ltd. Performance Testing
[0020] 1. Soft focus test Referencing ASTM D1003-19, "Transparent Plastic Film and Sheeting—Determination of Haze," and ISO 29642, "Plastic Materials—Determination of Transparency and Haze," the soft focus value is analyzed by testing the transmittance and haze of a powder sample coated on an optical glass plate. The greater the transmittance and haze, the greater the soft focus value. It's important to note that the soft focus value doesn't eliminate skin blemishes. Instead, it's based on optical principles. By increasing the scattering of light on the skin, it visually blurs minor skin blemishes, creating a softer appearance that makes the skin appear more even, smoother, and more refined, as if an invisible filter has been added, creating a premium, matte, and resurfaced finish. Test method: Use an automatic coating machine to evenly coat the powder sample on an optical glass plate at a thickness of 10μm. After waiting for 5 minutes, use a colorimeter to test. Three parallel experiments are performed for each powder sample, and the average data is taken to calculate the corresponding soft focus value. 2. Evaluation of usage effect Ten healthy volunteers aged 18-65 years with no obvious facial trauma or disease and stable skin (not in the acute inflammatory phase) were randomly recruited. After cleansing their faces, they applied pressed powder to both cheeks and were rated on a scale of 1-5 for skin adhesion, soft focus, and concealing power. A score of 1 indicated poor skin adhesion, soft focus, and concealing power, while a score of 5 indicated good skin adhesion, soft focus, and concealing power. The average of the results was used. Then, the volunteers were asked to sit quietly in an environment with a temperature of 20-25℃ and a relative humidity of 40-60% for 6 hours, and then rate the makeup lasting effect of the powder on a scale of 1-5 points; among them, oily shine and powder floating and falling off represent poor makeup lasting effect, with a score of 1 point, and no oily shine and no powder floating and falling off represent good makeup lasting effect, with a score of 5 points. The final result was the average value.
[0021] The equipment models and manufacturer information used in the various embodiments and performance testing processes of this application are as follows: Freeze dryer, model TF-LYO-30, manufactured by Shanghai Tianfeng Industrial Co., Ltd. Constant temperature box, model HYH-150D, produced by Dongguan Huanyi Instrument Technology Co., Ltd.; Automatic coating machine, model AB4120 AFA, manufactured by TQC Sheen; Colorimeter and haze meter, model LS155, produced by Shenzhen Linshang Technology Co., Ltd. Examples 1-3
[0022] A new type of light and thin skin-friendly powder, composed of powder component, oil phase component and gel component; The raw material compositions and contents (kg) used in the preparation of the above-mentioned powder component, oil phase component and gel component are shown in Table 2 below: Table 2 Composition and content of raw materials used in Examples 1-3
[0023] The amount of the powder component, oil phase component and gel component used in the preparation of the above-mentioned novel light and thin skin-friendly powder cake is calculated by mass ratio of powder component: oil phase component: gel component to be 40:18:45.
[0024] The preparation method of the novel light and thin skin-friendly pressed powder comprises the following steps: S1. Mix mica, synthetic fluorphlogopite, silica, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, boron nitride, barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer, silica silylate, and a colorant, and grind the mixture to a particle size of 5-20 μm to obtain a powder component; S2. Sequentially add 9 kg of oil phase components (squalane, octyldodecanol stearoylstearate, cetyl ethylhexanoate, glycerin, and 1,3-butylene glycol) and 22.5 kg of gel components (xanthan gum, Chondrus Crispus extract, polysorbate 80, caprylyl glycol, ethylhexylglycerin, and water), control the temperature to 75°C, stir at a rate of 400 r / min, and stir for 25 min to obtain a mixture of the oil phase component and the gel component; S3, adding 20 kg of the powder component to the mixture of the oil phase component and the gel component, controlling the temperature to 75 ° C, stirring at a rate of 400 r / min and stirring for 25 min until mixed, and then cooling to 25-30 ° C (room temperature) to obtain a powder base; S4. Pour the powder base into the pressing mold, control the pressing pressure to 5 kgf / cm² and press for 6 seconds to obtain a powder cake; S5. Place the powder block in a low-temperature refrigerator and freeze it at -40°C for 3 hours to obtain a frozen powder block; S6. Place the frozen powder cake in a freeze dryer for gasification drying, control the vacuum degree to ≤10Pa, control the temperature to -40°C and dry for 10 hours to obtain a first dried powder cake; S7. Place the powder cake dried for the first time into a constant temperature box for secondary drying, control the temperature to 40° C. and dry for 4 hours to obtain a finished powder cake.
[0025] The performance of the novel light and thin skin-friendly powder obtained in Examples 1-3 of the present application was tested, and the test results are shown in Tables 3 and 4 below: Table 3 Soft focus test results of Examples 1-3 Soft Focus Value Example 1 47.71 Example 2 47.46 Example 3 47.82 Table 4 Evaluation results of the use effects of Examples 1-3 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 1 4.9 5.0 4.9 4.8 Example 2 4.7 4.9 4.5 4.6 Example 3 4.8 4.9 4.6 4.8 Analysis of the data in Tables 3 and 4 above shows that Examples 1-3 achieved high soft focus values of 47.46-47.82, skin adherence scores of 4.7-4.9, soft focus perception scores of 4.9-5.0, concealing power scores of 4.5-4.9, and longevity scores of 4.6-4.8, indicating excellent performance. This demonstrates that when the contents of the various components of the pressed powder fall within the ranges described in Examples 1-3, skin adherence, soft focus perception, and concealing power are excellent, resulting in a light, smooth, and non-floating finish while also providing a reasonable degree of concealing power and soft focus.
[0026] Furthermore, the gradient temperature control technology used in the preparation process is more conducive to the activation and maintenance of the activity of skin-nourishing ingredients. The resulting powder not only has good makeup effect, but also can nourish the skin, which is in line with the current mainstream trend of "skin-nourishing makeup". Comparative Example 1
[0027] A novel light and thin skin-fitting powder cake, the raw material composition and content used in its preparation are the same as those in Example 1; The preparation method of the novel light and thin skin-friendly pressed powder differs from the preparation method in Example 1 in that there is no secondary drying step in S7 , that is, the pressed powder dried for the first time in S6 is the finished pressed powder. Comparative Example 2
[0028] A novel light and thin skin-fitting powder cake, the raw material composition and content used in its preparation are the same as those in Example 1; The preparation method of the novel light and thin skin-friendly pressed powder differs from the preparation method in Example 1 in that there is no first drying step in S6 , that is, the powder blocks frozen in S5 are directly dried in S7 to obtain the finished pressed powder.
[0029] The performance of the novel light and thin skin-friendly powder obtained in Examples 1-2 of this application was tested and compared with the test results of Example 1. The test results are shown in Tables 5-6 below: Table 5 Soft focus test results of Example 1 and Comparative Examples 1-2 Soft Focus Value Example 1 47.71 Comparative Example 1 35.22 Comparative Example 2 31.87 Table 6 Evaluation results of the use effects of Example 1 and Comparative Examples 1-2 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 1 4.9 5.0 4.9 4.8 Comparative Example 1 4.2 3.8 3.4 4.0 Comparative Example 2 3.9 3.2 2.8 3.8 Analysis of the data in Tables 5 and 6 above shows that Example 1 undergoes two drying steps at different temperatures, while Comparative Examples 1 and 2 undergo only a single drying process. When the resulting pressed powders were tested for performance, the soft focus values for Comparative Example 1 and Comparative Example 2 were 35.22 and 31.87, respectively, both decreasing compared to the soft focus value of 47.71 for Example 1. Furthermore, in the performance evaluation results, the pressed powders obtained in Comparative Examples 1 and 2 exhibited decreased skin adhesion, soft focus, coverage, and long-lasting effects.
[0030] This may be due to the two drying steps at different temperatures altering the powder's internal structure, increasing the density and stability of the powder particle distribution. This improves the powder's coverage and color rendering, allowing it to retain its lightweight, close-fitting properties while also effectively concealing blemishes and modifying skin tone. Furthermore, this dense distribution acts like a film on the skin's surface, creating a more integrated look between the powder, foundation, and skin. The powder particles are less noticeable, resulting in a more delicate, close-fitting finish and significantly improved long-lasting makeup. Comparative Examples 3-6
[0031] A novel light and thin skin-fitting pressed powder is prepared using the same raw materials as in Example 1, except for the different contents of boron nitride, barium sulfate, bismuth oxychloride, and polymethyl methacrylate cross-linked polymer in the powder component. See Table 7 below for details: Table 7 Composition and content of raw materials different from those in Example 1 for Comparative Examples 3-6 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Boron nitride 5 5 0 10 barium sulfate 10 0 6 6 Bismuth oxychloride 0 10 4 4 Polymethyl methacrylate crosspolymer 5 5 10 0 The preparation method of the novel light and thin skin-friendly pressed powder is the same as that in Example 1.
[0032] The performance of the novel light and thin skin-friendly powder obtained in Examples 3-6 of the present application was tested and compared with the test results of Example 1, as shown in Tables 8 and 9 below: Table 8 Soft focus test results of Example 1 and Comparative Examples 3-6 Soft Focus Value Example 1 47.71 Comparative Example 3 40.65 Comparative Example 4 42.13 Comparative Example 5 31.45 Comparative Example 6 34.89 Table 9 Evaluation results of the use effects of Example 1 and Comparative Examples 3-6 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 1 4.9 5.0 4.9 4.8 Comparative Example 3 4.6 4.4 4.3 4.4 Comparative Example 4 4.5 4.5 4.1 4.2 Comparative Example 5 4.4 3.8 4.3 4.2 Comparative Example 6 4.1 4.2 4.4 4.1 Analysis of the data in Tables 8 and 9 above demonstrates that in Examples 1, 3, and 4, when only one of the barium sulfate and bismuth oxychloride components is used alone, the soft focus value, skin adhesion, soft focus feel, and concealing power all decrease. In particular, the concealing power score drops from 4.9 to 4.1-4.3. This demonstrates that the combined use of barium sulfate and bismuth oxychloride provides superior concealing power compared to using either component alone.
[0033] In Example 1, Comparative Examples 5, and 6, when only one of the boron nitride and polymethyl methacrylate cross-linked polymer was used alone, the soft focus value, skin adhesion, soft focus feel, and concealing power all decreased. In particular, the skin adhesion score dropped from 4.9 to 4.1-4.4, and the soft focus feel score dropped from 5.0 to 3.8-4.2. This demonstrates that the combined use of boron nitride and polymethyl methacrylate cross-linked polymer offers improved performance and user experience compared to using either component alone.
[0034] In summary, when the four components of the powder, barium sulfate, chloride oxide, bismuth boron nitride and polymethyl methacrylate cross-linked polymer, are used together, they can achieve better effects in terms of skin-fitting, soft-focus feel and concealing power. Comparative Example 7
[0035] A novel light and thin skin-fitting powder is prepared by omitting the Chondrus Crispus extract from the gel component from the raw materials used in the preparation, and otherwise remaining the same as in Example 1.
[0036] The preparation method of the novel light and thin skin-friendly pressed powder is the same as that in Example 1.
[0037] The performance of the novel light and thin skin-friendly powder obtained in Example 7 was tested in this application, and the test results were compared with those of Example 1, as shown in Tables 10 and 11 below: Table 10 Soft focus test results of Example 1 and Comparative Example 7 Soft Focus Value Example 1 47.71 Comparative Example 7 38.45 Table 11 Evaluation results of the use effects of Example 1 and Comparative Example 7 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 1 4.9 5.0 4.9 4.8 Comparative Example 7 3.6 4.4 4.5 4.3 Analysis of the data in Tables 10 and 11 above shows that when Chondrus crispus extract is omitted from the powder, the skin-fitting score is only 3.6, and coverage and soft-focus effects are reduced to varying degrees. This may be due to the polysaccharide network structure of Chondrus crispus interweaving with the high-viscosity backbone of xanthan gum, better resisting ice crystal damage during freeze-drying and maintaining the powder's porous structure, thereby improving the powder's dispersibility and skin-fitting properties. Furthermore, this indirectly promotes more even adhesion of ingredients like barium sulfate and bismuth oxychloride to the skin's surface, enhancing coverage and reducing the appearance of heaviness. Example 4
[0038] A novel light and thin skin-friendly pressed powder, which is the same as Example 1 except that the amounts of the powder component, oil phase component, and gel component used in the preparation are different from those in Example 1; The mass ratio of the powder component: the oil phase component: the gel component is 30:15:40.
[0039] The preparation method of the novel light and thin skin-friendly pressed powder is the same as that in Example 1. Example 5
[0040] A novel light and thin skin-friendly pressed powder, which is the same as Example 1 except that the amounts of the powder component, oil phase component, and gel component used in the preparation are different from those in Example 1; The mass ratio of the powder component: the oil phase component: the gel component is 45:20:50.
[0041] The preparation method of the novel light and thin skin-friendly pressed powder is the same as that in Example 1.
[0042] The performance of the novel light and thin skin-friendly powder obtained in Examples 4-5 of the present application was tested, and the test results are shown in Tables 12 and 13 below: Table 12 Soft focus test results of Examples 4-5 Soft Focus Value Example 4 47.48 Example 5 45.65 Table 13 Evaluation results of the use effect of Examples 4-5 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 4 4.9 5.0 4.9 4.8 Example 5 4.8 4.6 4.5 4.6 From the analysis of the data in Tables 12 and 13 above, it can be seen that when the amounts of the powder component, the oil phase component and the gel component in the powder cake are within the parameter ranges of Examples 4-5, the performance effect is good. Example 6
[0043] A novel light and thin skin-fitting powder cake, the raw material composition and content used in its preparation are the same as those in Example 1; The preparation method of the novel light and thin skin-friendly pressed powder comprises the following steps: S1. Mix mica, synthetic fluorphlogopite, silica, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, boron nitride, barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer, silica silylate, and a colorant, and grind the mixture to a particle size of 5-20 μm to obtain a powder component; S2. Sequentially add 9 kg of oil phase components (squalane, octyldodecanol stearoylstearate, cetyl ethylhexanoate, glycerin, and 1,3-butylene glycol) and 22.5 kg of gel components (xanthan gum, Chondrus crispus extract, polysorbate 80, caprylyl glycol, ethylhexylglycerin, and water), control the temperature to 80° C., stir at a rate of 300 r / min, and stir for 30 min to obtain a mixture of the oil phase component and the gel component; S3, adding 20 kg of the powder component to the mixture of the oil phase component and the gel component, controlling the temperature to 80°C and the stirring rate to 300 r / min and stirring for 30 min until mixed, and then cooling to 25-30°C (room temperature) to obtain a powder base; S4. Pour the powder base into the pressing mold, control the pressing pressure to 6 kgf / cm² and press for 1 second to obtain a powder cake; S5. Place the powder block in a low-temperature refrigerator and freeze it at -50°C for 1 hour to obtain a frozen powder block; S6. Place the frozen powder cake in a freeze dryer for gasification drying, control the vacuum degree to ≤10Pa, control the temperature to -50°C and dry for 8h to obtain the first dried powder cake; S7. Place the powder cake dried for the first time into a constant temperature box for secondary drying, control the temperature to 25° C. and dry for 6 hours to obtain a finished powder cake. Example 7
[0044] A novel light and thin skin-fitting powder cake, the raw material composition and content used in its preparation are the same as those in Example 1; The preparation method of the novel light and thin skin-friendly pressed powder comprises the following steps: S1. Mix mica, synthetic fluorphlogopite, silica, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, boron nitride, barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer, silica silylate, and a colorant, and grind the mixture to a particle size of 5-20 μm to obtain a powder component; S2. Sequentially add 9 kg of oil phase components (squalane, octyldodecanol stearoylstearate, cetyl ethylhexanoate, glycerin, and 1,3-butylene glycol) and 22.5 kg of gel components (xanthan gum, Chondrus crispus extract, polysorbate 80, caprylyl glycol, ethylhexylglycerin, and water), control the temperature to 70°C, and stir at a rate of 500 r / min for 20 min to obtain a mixture of the oil phase component and the gel component; S3, adding 20 kg of the powder component to the mixture of the oil phase component and the gel component, controlling the temperature to 70°C and the stirring rate to 500 r / min and stirring for 20 min until mixed, and then cooling to 25-30°C (room temperature) to obtain a powder base; S4. Pour the powder base into the pressing mold, control the pressing pressure to 3 kgf / cm² and press for 10 seconds to obtain a powder cake; S5. Place the powder block in a low-temperature refrigerator and freeze it at -30°C for 5 hours to obtain a frozen powder block; S6. Place the frozen powder cake in a freeze dryer for gasification drying, control the vacuum degree to ≤10Pa, control the temperature to -30°C and dry for 12 hours to obtain the first dried powder cake; S7. Place the powder cake dried for the first time into a constant temperature box for secondary drying, control the temperature to 60° C. and dry for 2 hours to obtain a finished powder cake.
[0045] The performance of the novel light and thin skin-friendly powder obtained in Examples 6-7 of the present application was tested, and the test results are shown in Tables 14 and 15 below: Table 14 Soft focus test results of Examples 6-7 Soft Focus Value Example 6 47.68 Example 7 45.89 Table 15 Evaluation results of the use effects of Examples 6-7 Skin-friendly Soft focus Concealer Long-lasting makeup effect Example 6 4.8 4.9 4.8 4.7 Example 7 4.8 4.8 4.9 4.8 By analyzing the data in Tables 14 and 15 above, it can be seen that when the preparation process parameters of the powder cake are within the parameter range of Examples 6-7, the performance effect is good.
[0046] To sum up, the new type of light and thin skin-friendly powder cake in the present application is prepared by compounding multiple raw materials and combining two preparation processes with different drying temperatures. The resulting powder cake retains the advantages of lightness and non-floating powder in the traditional freeze-drying process, and at the same time the concealing power of the powder cake is improved. The relative flatness of the skin surface and the integrity of the piece after makeup not only reduce the powdery feel of the makeup, but also improve the visual soft focus through the conversion of light paths, thereby achieving the effect of optical beauty.
[0047] The specific embodiments of this application are merely explanations of this application and are not limitations of this application. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of this application, they are protected by patent law.
Claims
1. A new type of light and thin skin-friendly powder cake, characterized in that: It is composed of powder component, oil phase component and gel component; The powder component comprises the following components in parts by mass: 10-50 parts of mica; 10-70 parts of synthetic fluorphlogopite; 10-50 parts of silica; 1-30 parts of vinyl dimethicone / methicone silsesquioxane crosspolymer; 1-10 parts of boron nitride; 1-10 parts of barium sulfate; 1-10 parts of bismuth oxychloride; 1-10 parts of polymethyl methacrylate cross-linked polymer; 0.1-10 parts of silica silylate; 0.4-13 parts of colorant; The oil phase component comprises the following components in parts by weight: 0.1-5 parts of squalane; 0.1-5 parts of octyldodecyl stearoyl stearate; 0.1-5 parts of cetyl ethylhexanoate; 0.1-5 parts of glycerin; 0.1-5 parts of 1,3-butanediol; The gel component comprises the following components in parts by mass: 0.1-2 parts of xanthan gum; 0.1-2 parts of Chondrus crispus extract; Polysorbate 80 0.1-5 parts; Caprylyl glycol 0.1-1 part; Ethylhexylglycerin 0.1-1 part; 15-60 parts water.
2. A novel light and thin skin-friendly pressed powder according to claim 1, characterized in that: The powder component, oil phase component and gel component are calculated by weight percentage: the powder component is 30%-45%, the oil phase component is 15%-20%, and the gel component is 40%-50%.
3. A novel light and thin skin-friendly powder according to claim 1, characterized in that: The colorant comprises the following components in parts by mass: 0.1-5 parts of titanium dioxide; 0.1-5 parts of iron oxide yellow; 0.1-2 parts of red iron oxide; Iron oxide black 0.1-1 part.
4. A method for preparing a novel light and thin skin-friendly pressed powder according to any one of claims 1 to 3, characterized in that: The method comprises the following preparation steps: S1. Mixing mica, synthetic fluorphlogopite, silica, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, boron nitride, barium sulfate, bismuth oxychloride, polymethyl methacrylate crosspolymer, silica silylate, and a colorant, and grinding the mixture to obtain a powder component; S2. Add the oil phase component and the gel component in sequence, control the temperature to 70-80°C and stir until uniform, to obtain a mixture of the oil phase component and the gel component; The oil phase components are squalane, octyldodecanol stearyloxystearate, cetyl ethylhexanoate, glycerin and 1,3-butylene glycol; The gel components are xanthan gum, Chondrus crispus extract, polysorbate 80, caprylyl glycol, ethylhexylglycerin and water; S3, adding the powder component to the mixture of the oil phase component and the gel component, controlling the temperature to 70-80°C and stirring until mixed, and then cooling to 25-30°C to obtain a powder base; S4, introducing the powder base into a pressing mold for pressing to obtain a powder block; S5, freezing the powder block at a temperature of (-50)-(-30)°C for 1-5 hours to obtain a frozen powder block; S6. Gasify and dry the frozen powder cake, control the vacuum degree to ≤10Pa, control the temperature to be (-50)-(-30)℃ and dry it for 8-12h to obtain the first dried powder cake; S7, performing secondary drying on the powder cake obtained by the first drying, controlling the temperature to be 25-60° C. and drying for 2-6 hours to obtain a powder cake product.
5. The method for preparing the novel light and thin skin-friendly pressed powder according to claim 4, wherein: In the above-mentioned S1, the particle size of the powder component is controlled to be 5-20 μm.
6. The method for preparing the novel light and thin skin-friendly pressed powder according to claim 4, wherein: In S4, the pressing pressure is 3-6 kgf / cm², and the pressing time is 1-10 s.