A roasted powder and paste composition and a method of preparing the same

Abstract

The application relates to the cosmetic technical field, in particular to a baked powder and cream composition and a preparation method thereof. The baked powder and cream composition comprises a baked powder matrix and a cream oil phase, and the baked powder matrix is integrally formed through a freeze-baking process after mixing of a powder phase and an emulsion phase. The preparation method of the baked powder and cream composition comprises the following steps: (1) powder phase preparation; (2) emulsion phase preparation; (3) baked powder matrix preparation; (4) cream oil preparation; (5) combined filling, and the baked powder and cream composition is obtained. The baked powder and cream composition has excellent cream body feeling and spreading smoothness, strong powder locking capacity, and can effectively prevent the flying powder problem. Meanwhile, the product rheological structure is stable, the storage modulus and shear viscosity are moderate, the 8h makeup effect is excellent, the makeup is light, breathable and comfortable, and the skin feeling is comfortable. The high and low temperature storage and cycle stability are good, there are no problems such as oil separation, cracking and powder-cream separation, and the baked powder and cream composition is suitable for long-term makeup use for various skin types.

Description

Technical Field

[0001] This application relates to the field of cosmetic technology, and more specifically, to a powder and paste composition and a method for preparing the same. Background Technology

[0002] Baked powder and cream blends are currently mainstream setting and contouring products in the makeup industry. With their fine powder texture, natural finish, and portability, they are widely used in everyday makeup applications. However, most conventional baked powder and cream blend makeup products on the market are made using a single emulsification system combined with common oil-based ingredients and a constant-temperature baking process. These methods still have many technical shortcomings in practical application and production / storage, making it difficult to simultaneously meet the multiple requirements of product feel, makeup effect, and structural stability.

[0003] In existing technologies, most baked powder cream products use single or binary emulsifier complex systems, resulting in poor emulsification compatibility and an inability to accurately balance the interfacial properties of the oil and water phases. This easily leads to uneven emulsion dispersion and insufficient system compatibility. During long-term storage, phenomena such as oil separation, layering, and emulsion breaking are prone to occur, significantly shortening the product's shelf life. At the same time, traditional products often use a single moisturizing oil, which cannot balance smoothness of application and skin breathability. A single moisturizing oil can easily lead to a sticky and suffocating texture, while a single refreshing oil lacks sufficient lubrication, causing makeup to clump, clump, and produce fallout. During makeup application, problems such as makeup fading, dullness, and patchiness are likely to occur, resulting in poor makeup longevity.

[0004] In addition, existing baked powder substrates generally employ a one-time constant-temperature baking process, resulting in uncontrollable heating rates and significant differences in the rate of moisture evaporation within the substrate. This easily leads to defects such as uneven distribution of internal pores, surface crusting, and loose internal structure. The resulting baked powder substrate exhibits low structural strength and poor elasticity, making it prone to cracking, loosening, and breakage. Furthermore, the insufficient adhesion between the powder and the cream further exacerbates powder shedding and flyaway issues. Simultaneously, the product has poor adaptability to high and low temperature environments, easily experiencing powder-cream separation and structural damage under temperature fluctuations, severely impacting product quality and user experience. Based on the aforementioned deficiencies in existing technologies, there is an urgent need to develop a baked powder-cream composition and its preparation method that features a rationally formulated composition, optimized molding process, excellent skin feel, long-lasting makeup performance, and structural stability. Summary of the Invention

[0005] To address the technical problems mentioned in the background art, this application provides a baking powder and paste composition and a method for preparing the same.

[0006] In a first aspect, this application provides a baking powder and paste composition, employing the following technical solution: A baking powder and paste composition comprising a baking powder matrix and a paste oil phase.

[0007] Furthermore, the baking powder matrix is ​​integrally formed by mixing the powder phase and the emulsion phase and then performing a freeze-bake process.

[0008] Further, the powder phase comprises the following raw materials in parts by weight: 4-8 parts silica, 70-78 parts calcium aluminum borosilicate, 12-16 parts colorant, 3-5 parts synthetic fluorophlogopite, 0.5-1.5 parts mica, 0.5-0.8 parts tin oxide, and 0.01-0.05 parts aluminum hydroxide.

[0009] Furthermore, the emulsion phase is composed of an aqueous phase component, an oil phase component, and a preservative in a mass ratio of 75-85:15-25:0.7-1.2.

[0010] Further, the aqueous phase component comprises the following raw materials in parts by weight: 1-2 parts of butanediol, 0.08-0.15 parts of carrageenan, 0.08-0.12 parts of gellan gum, 0.3-0.7 parts of glycerol, 0.08-0.12 parts of potassium chloride, and 70-76 parts of water.

[0011] Furthermore, the oil phase component comprises the following raw materials in parts by weight: 8-10 parts of polyoxyethylene nonionic emulsifier and 12-18 parts of fatty acid alcohol ester moisturizing oil.

[0012] Furthermore, the ointment phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine and dibutyl ethylhexanoyl glutamine in a mass ratio of 35-48:38-42:6-8:2-3.

[0013] Furthermore, the mass ratio of the baking powder matrix to the paste oil phase is 75-80:20-25.

[0014] Furthermore, the mass ratio of the powder phase to the emulsion phase is 65-75:15-25.

[0015] Further, the colorant is one or more of CI 15850, CI 77491, CI 77891, CI 77499 and CI 77492.

[0016] Furthermore, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7-9:3-5:2-3.

[0017] Furthermore, the fatty acid alcohol ester moisturizing oil is composed of cetyl alcohol ethylhexanoate and isononyl isononanoate in a mass ratio of 2-5:1-3.

[0018] Furthermore, the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5-0.8:0.2-0.5:0.01-0.02.

[0019] Secondly, this application also provides a method for preparing a baking powder and paste composition, employing the following technical solution: A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Add silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide into a mixing pot and mix evenly to obtain powder; (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerin, potassium chloride and water are added to an emulsification pot, heated and stirred until homogeneous to obtain an aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester moisturizing oil are added to an oil pot, heated and stirred until homogeneous to obtain an oil phase component; the oil phase component is added to the aqueous phase component, homogenized, and after homogenization, the temperature is lowered to 30-40℃, preservatives are added, and stirred until homogeneous to obtain an emulsion phase; (3) Preparation of baking powder substrate: The powder phase and the emulsion phase are mixed, heated and stirred evenly, and then filled into a mold to form. After freezing and demolding and baking, the baking powder substrate is obtained. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pan, heated and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80-90℃, so that the paste phase covers the baking powder substrate, cool and set, and the baking powder and paste combination is obtained.

[0020] Furthermore, in step (2), the homogenization rate is 8000-12000 rpm and the homogenization time is 3-5 min.

[0021] Furthermore, in step (3), the freezing temperature for freezing and demolding is -35°C to -25°C, and the product is demolded after freezing for 20-30 minutes.

[0022] Furthermore, in step (3), the baking adopts a gradient heating method, specifically: first bake at 50-55℃ for 2-3 hours, then heat up to 60-65℃ for 4-6 hours, and finally heat up to 75-80℃ for 2-3 hours.

[0023] Furthermore, the heating and stirring time in step (4) is 20-40 min.

[0024] In summary, this application has the following beneficial effects: This application significantly optimizes the microstructure and comprehensive application performance of the powder and cream composition by using a limited ternary polyoxyethylene nonionic emulsifier compound system, a combination of dibasic fatty acid alcohol ester moisturizing oils, and a gradient temperature freezing-baking integrated molding process. It solves the industry pain points of traditional powder and cream compositions, such as poor emulsification stability, easy powder shedding, difficulty in balancing skin feel and makeup lasting effect, and easy damage to the molding structure.

[0025] This application employs a ternary compound emulsification system of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane, and polysorbate-80. The three components are synergistically complementary, which can precisely match the interfacial tension of the oil-water two phases to form a dense and stable composite interfacial film. This effectively improves the dispersion uniformity and system compatibility of the emulsion phase, avoids emulsion agglomeration, stratification, and demulsification problems, and fundamentally improves the tightness of the binding between the paste and powder, reduces the risk of oil separation and stratification, and significantly improves the storage stability of the product.

[0026] Meanwhile, this application specifies a binary moisturizing oil system composed of cetyl ethylhexanoate and isononyl isononanoate. The two oils complement each other, ensuring a light and refreshing feel while providing excellent spreadability, lubrication, and film-forming properties. This improves the defects of powder application such as sticking and clumping, and forms a uniform and breathable protective film on the skin surface, effectively locking in powder particles and inhibiting fallout and makeup fading. It balances a smooth makeup application experience with long-lasting makeup performance. In addition, this application adopts a gradient temperature baking process, which can achieve uniform evaporation of moisture within the baked powder substrate, avoiding problems such as substrate cracking, loose structure, and uneven internal pores caused by rapid heating. This results in a dense and uniform three-dimensional skeletal structure in the baked powder matrix, significantly improving the powder structure strength and the bonding force between the powder and the product. This gives the product excellent elasticity and a delicate texture, stronger adaptability to high and low temperature environments, effectively broadening the product's application scenarios and possessing extremely high industrial application value. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The C12-20 acid PEG-8 ester used in the examples and comparative examples of this application was purchased from Jiangsu Jufeng Chemical Technology Co., Ltd.; PEG-12 polydimethylsiloxane was purchased from Jining Fangyu Chemical Co., Ltd.; polysorbate-80 was purchased from Hubei Xinyuhong Biomedical Technology Co., Ltd.; cetyl ethylhexanoate was purchased from Shandong Shangwei Chemical Import & Export Co., Ltd.; and isononyl isononanoate was purchased from Jining Tangyi Chemical Co., Ltd.

[0029] Examples 1-3 provide a baking powder and paste composition and its preparation method.

[0030] Example 1: A baking powder and paste composition comprising a baking powder matrix and a paste oil phase in a mass ratio of 75:20; the baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process; the paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2; the powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and synthetic fluorophlogopite. 3 parts, mica 0.5 parts, tin oxide 0.5 parts, aluminum hydroxide 0.01 parts; the emulsion phase consists of an aqueous phase component, an oil phase component, and a preservative in a mass ratio of 75:15:0.7; the aqueous phase component includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water; the oil phase component includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and the colorant is CI. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7:3:2, the fatty acid alcohol ester moisturizing oil is composed of cetyl ethylhexanoate and isononyl isononanoate in a mass ratio of 2:1, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0031] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0032] Example 2: A baking powder and paste composition comprising a baking powder matrix and a paste oil phase in a mass ratio of 78:22; the baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 70:20 and then performing a freeze-bake integrated molding process; the paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 42:40:7:2.5; the powder phase comprises the following raw materials in parts by weight: 6 parts silica, 74 parts calcium aluminum borosilicate, 14 parts colorant, and synthetic fluorine... The emulsion consists of 4 parts phlogopite, 1 part mica, 0.7 parts tin oxide, and 0.03 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 80:19:1. The aqueous phase includes the following raw materials in parts by weight: 1.5 parts butanediol, 0.1 parts chondroxylin and eosin, 0.1 parts gellan gum, 0.5 parts glycerin, 0.1 parts potassium chloride, and 73 parts water. The oil phase includes the following raw materials in parts by weight: 9 parts polyoxyethylene nonionic emulsifier, 15 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 77891, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 8:4:2.5, the fatty acid alcohol ester moisturizing oil is composed of cetyl alcohol ethylhexanoate and isononyl isononanoate in a mass ratio of 4:2, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.7:0.3:0.015.

[0033] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 300 rpm for 30 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 80°C, and stirred for 20 minutes at a stirring speed of 300 rpm until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 80°C, and stirred for 25 minutes at a stirring speed of 300 rpm until homogeneous to obtain the oil phase component; at 80°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 10000 rpm and the homogenization time was 4 minutes. After homogenization, the temperature was lowered to 35°C, preservatives were added, and the mixture was stirred for 25 minutes at a stirring speed of 300 rpm until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 83°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -30°C, and the constant temperature freezing is carried out for 25 minutes. After the system is completely solidified, demolding is completed. After demolding, the temperature is increased by gradient heating and baking. Specifically, the temperature is increased to 53°C for 2.5 hours, then increased to 62°C for 5 hours, and finally increased to 78°C for 2.5 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 105°C, stirred for 30 minutes at a stirring speed of 400 rpm, and stirred evenly to obtain the ointment phase. (5) Combination filling: control the temperature of the paste phase to 85°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0034] Example 3: A baking powder and paste composition comprising a baking powder matrix and a paste oil phase in a mass ratio of 80:25; the baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 75:25 and then performing a freeze-bake integrated molding process; the paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 48:42:8:3; the powder phase comprises the following raw materials in parts by weight: 8 parts silica, 78 parts calcium aluminum borosilicate, 16 parts colorant, and 5 parts synthetic fluorophlogopite. The emulsion consists of 1.5 parts mica, 0.8 parts tin oxide, and 0.05 parts aluminum hydroxide; the emulsion phase is composed of an aqueous phase component, an oil phase component, and a preservative in a mass ratio of 85:25:1.2; the aqueous phase component includes the following raw materials in parts by weight: 2 parts butanediol, 0.15 parts chondroxylin and arginine, 0.12 parts gellan gum, 0.7 parts glycerol, 0.12 parts potassium chloride, and 76 parts water; the oil phase component includes the following raw materials in parts by weight: 10 parts polyoxyethylene nonionic emulsifier, 18 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 77492, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 9:5:3, the fatty acid alcohol ester moisturizing oil is composed of cetyl alcohol ethylhexanoate and isononyl isononanoate in a mass ratio of 5:3, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.8:0.5:0.02.

[0035] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 400 rpm for 40 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 85°C, and stirred at 400 rpm for 30 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 85°C, and stirred at 400 rpm for 30 min until homogeneous to obtain the oil phase component; at 85°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 12000 rpm and the homogenization time was 5 min. After homogenization, the temperature was lowered to 40°C, preservatives were added, and the mixture was stirred at 400 rpm for 30 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 85°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -25°C, and the constant temperature freezing is performed for 30 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 55°C for 3 hours, then heat to 65°C for 6 hours, and finally heat to 80°C for 3 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pan, heated to 120°C, stirred for 40 minutes at a stirring speed of 500 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 90°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0036] Comparative Example 1 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 3:2, the fatty acid alcohol ester moisturizing oil is composed of cetyl ethylhexanoate and isononyl isononanoate in a mass ratio of 2:1, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0037] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0038] Comparative Example 2 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester and polysorbate-80 in a mass ratio of 7:2, the fatty acid alcohol ester moisturizing oil is composed of cetyl ethylhexanoate and isononyl isononanoate in a mass ratio of 2:1, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0039] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0040] Comparative Example 3 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester and PEG-12 polydimethylsiloxane in a mass ratio of 7:3, the fatty acid alcohol ester moisturizing oil is composed of cetyl alcohol ethylhexanoate and isononyl isononanoate in a mass ratio of 2:1, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0041] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0042] Comparative Example 4 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7:3:2, the fatty acid alcohol ester moisturizing oil is isononyl isononanoate, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0043] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0044] Comparative Example 5 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7:3:2, the fatty acid alcohol ester moisturizing oil is cetyl ethylhexanoate, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0045] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and the emulsion phase, heat to 80°C, stir evenly and fill into the mold to form. After forming, perform freezing demolding treatment: the freezing temperature is controlled at -35°C, and the constant temperature freezing is carried out for 20 minutes. After the system is completely solidified, demolding is completed. After demolding, the gradient heating method is used for baking. Specifically, bake at 50°C for 2 hours, then heat to 60°C for 4 hours, and finally heat to 75°C for 2 hours to obtain the baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0046] Comparative Example 6 A baking powder and paste composition comprises a baking powder matrix and a paste oil phase in a mass ratio of 75:20. The baking powder matrix is ​​prepared by mixing the powder phase and the emulsion phase in a mass ratio of 65:15 and then performing a freeze-bake integrated molding process. The paste oil phase is composed of polybutene, octyl dodecanol, dibutyllauroyl glutamine, and dibutylethylhexanoyl glutamine in a mass ratio of 35:38:6:2. The powder phase comprises the following raw materials in parts by weight: 4 parts silica, 70 parts calcium aluminum borosilicate, 12 parts colorant, and 3 parts synthetic fluorophlogopite. The emulsion consists of 0.5 parts mica, 0.5 parts tin oxide, and 0.01 parts aluminum hydroxide. The emulsion phase comprises an aqueous phase, an oil phase, and a preservative in a mass ratio of 75:15:0.7. The aqueous phase includes the following raw materials in parts by weight: 1 part butanediol, 0.08 parts chondroxylin and eosin, 0.08 parts gellan gum, 0.3 parts glycerin, 0.08 parts potassium chloride, and 70 parts water. The oil phase includes the following raw materials in parts by weight: 8 parts polyoxyethylene nonionic emulsifier, 12 parts fatty acid alcohol ester moisturizing oil, and CI as the colorant. 15850, the polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7:3:2, the fatty acid alcohol ester moisturizing oil is composed of cetyl ethylhexanoate and isononyl isononanoate in a mass ratio of 2:1, and the preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5:0.2:0.01.

[0047] A method for preparing a baking powder and paste composition includes the following preparation steps: (1) Powder preparation: Silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide are added to a mixing pot and stirred at 200 rpm for 20 min at room temperature until they are mixed evenly to obtain the powder. (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerol, potassium chloride and water were added to an emulsification pot, heated to 75°C, and stirred at 200 rpm for 10 min until homogeneous to obtain the aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester softening oil were added to an oil pot, heated to 75°C, and stirred at 200 rpm for 20 min until homogeneous to obtain the oil phase component; at 75°C, the oil phase component was added to the aqueous phase component for high-speed homogenization emulsification treatment; the homogenization speed was controlled at 8000 rpm and the homogenization time was 3 min. After homogenization, the temperature was lowered to 30°C, preservatives were added, and the mixture was stirred at 200 rpm for 20 min until homogeneous to obtain the emulsion phase; (3) Preparation of baking powder substrate: Mix the powder phase and emulsion phase, heat to 80°C, stir evenly and fill into mold to form, and then freeze and demold after molding: control the freezing temperature at -35°C, freeze at constant temperature for 20 minutes, and demold after the system is completely solidified. After demolding, bake at 60°C for 8 hours to obtain baking powder substrate. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated to 90°C, stirred for 20 minutes at a stirring speed of 300 rpm, and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80°C, so that the paste phase covers the baking powder substrate, and cool naturally to room temperature to set, thus obtaining the baking powder and paste combination.

[0048] Performance testing To verify the comprehensive performance of the powder and cream composition prepared in this application, specific performance tests were conducted on the samples of Examples 1-3 and Comparative Examples 1-6. The test items covered five core indicators: cream texture, spreadability, powder fallout, makeup holding power, and skin comfort. All tests were conducted in a constant temperature and humidity environment (temperature 25℃±2℃, humidity 50%±5%). Each group of samples was tested in parallel 3 times, and the average value was taken as the final test result. I. Subjective sensory evaluation A professional blind testing team of 45 people was formed, covering dry, oily, and combination skin types. Under a standard constant temperature and humidity testing environment, each group of samples was independently scored on five core indicators, with a maximum score of 10 points for each indicator. The final average score of all groups was taken as the sensory evaluation result. The specific evaluation criteria are as follows: Texture of the paste: Simulate daily repeated dipping and use, touch the surface of the baking powder and paste combination, and comprehensively evaluate the overall softness, elasticity, fineness and softness-hardness adaptability of the baking powder base and the surface paste oil after combination.

[0049] Rating criteria: 9-10 points: Soft and bouncy texture, with a mochi-like feel, moderately soft and firm, delicate and even; 6-8 points: Relatively delicate texture, slightly firm / soft, average elasticity; 3-5 points: Coarse texture, no elasticity, dry or too sticky; 0-2 points: The paste is clumpy and loose, and cannot be used normally. Spreadability: Accurately weigh an equal amount of sample (0.05g) and apply it evenly to the skin of a standard test arm to simulate daily makeup application. Feel the resistance and blending degree of the cream-powder complex and observe whether there is any sticking or clumping.

[0050] Rating criteria: 9-10 points: Silky smooth and easy to spread, no sticking or clumping, even application; 6-8 points: Smooth overall application, slight sticking in some areas, no clumping; 3-5 points: High resistance to spreading, frequent sticking, small amount of clumping; 0-2 points: Difficult to spread, large amount of clumping, unable to apply makeup evenly. Powder fallout: Apply the sample evenly to the test skin and let it stand naturally for 1 minute to set. Then, gently blow on the skin surface to assess the powder locking ability of the baked powder paste composite structure and observe the powder fallout, fallout, and residue.

[0051] Scoring criteria: 9-10 points: No powder flying, no powder falling off; 6-8 points: Almost no powder flying, only a very small amount of powder residue; 3-5 points: Slight powder flying, obvious powder falling off; 0-2 points: Severe powder flying, a large amount of powder falling off. Makeup retention: Under normal indoor conditions, without touch-ups, wear makeup for 8 hours, and observe the adhesion of the cream and powder coatings at regular intervals. The evaluation focuses on the powder-locking, color-fixing, and anti-dulling ability of the cream-oil coating, as well as the adhesion stability of the baked powder substrate. Record the makeup removal, dullness, and patchiness. Scoring criteria: 9-10 points: No makeup fading or dullness after 8 hours, makeup is complete and natural; 6-8 points: Slight dullness after 8 hours, no patchiness, no obvious makeup fading; 3-5 points: Makeup fading and slight patchiness after 4-6 hours; 0-2 points: Severe makeup fading and patchiness within 4 hours. Skin comfort: Perceive the skin's breathability, stickiness, and heaviness while wearing makeup throughout the process, evaluate the skin-friendly nature of the cream-oil formula and the lightness of the baked powder, determine whether the complex system is suffocating or sticky, and adapt to the needs of long-term makeup wear. Rating criteria: 9-10 points: refreshing and non-sticky, breathable and burden-free, suitable for skin; 6-8 points: overall refreshing, slight presence, no stickiness or stuffiness; 3-5 points: slightly sticky and stuffy, heavy to the touch; 0-2 points: severely sticky and stuffy, causing skin discomfort.

[0052] II. Quantitative Detection by Instruments Precision instruments are used to quantify the product's structural stability, rheological properties, and spreadability, avoiding subjective human error and accurately addressing five sensory indicators. This method is tailored to the specific testing needs of powder and paste compositions. The specific testing items, parameters, and technical significance are as follows: 1. Rheological property testing Testing instrument: Rotational rheometer Test method: Using a 40 mm parallel plate fixture, oscillation frequency scanning and steady-state shear tests were conducted at a standard temperature of 25℃. The storage modulus G′, loss modulus G″, and 10 s⁻¹ of the sample were measured. -1 Shear viscosity; 2. Friction coefficient test Testing instrument: Friction coefficient meter Test method: VITRO-SKIN artificial skin was used to simulate human cheek skin. Each sample was coated with a uniform amount of the coating, and the coefficient of dynamic friction μ of the powder coating was measured.

[0053] 3. High and low temperature storage stability test To address issues such as oil separation, powder-paste separation, cracking, and loosening that commonly occur in baking powder and paste compositions, high and low temperature environmental adaptability tests were conducted on all samples to verify the compatibility of the formulation and the stability of the freeze-gradient baking molding process. (1) High temperature test: Place the sample in a 45℃ constant temperature oven for 30 days and observe the sample daily for oil separation, cracking, discoloration, and powder-paste separation. (2) Low temperature test: Place the sample in a -15℃ low temperature freezer for 30 days, and observe whether the sample molding structure and oil state are intact after returning to room temperature; (3) Cyclic test: alternating high and low temperature cycles (45℃ for 12h / -15℃ for 12h), 20 cycles, and record the damage and deterioration of the sample.

[0054] The specific test results are shown in Tables 1 and 2.

[0055] Table 1. Subjective sensory performance parameters of the baking powder and paste compositions prepared in Examples 1-3 and Comparative Examples 1-6.

[0056] Table 2. Instrument quantitative performance parameters of the baking powder and paste compositions prepared in Examples 1-3 and Comparative Examples 1-6.

[0057] As shown in Tables 1-2, the powder and cream compositions prepared in Examples 1-3 of this application possess excellent cream texture and smoothness, strong powder locking ability, and can effectively prevent powder fallout. Simultaneously, the product exhibits stable rheological structure, moderate storage modulus and shear viscosity, excellent 8-hour makeup hold, and a lightweight, breathable, and comfortable feel on the skin. It demonstrates good high and low temperature storage and cycling stability, without issues such as oil separation, cracking, or powder-cream separation, making it suitable for long-term use on various skin types and possessing excellent application value.

[0058] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0060] Those skilled in the art should understand that the above descriptions are merely several specific embodiments of the present invention, and not all embodiments.

Claims

1. A baking powder and paste composition, characterized in that, It consists of a baking powder matrix and a paste oil phase; The baking powder matrix is ​​integrally formed by mixing the powder phase and the emulsion phase and then performing a freeze-bake process. The powder phase comprises the following raw materials in parts by weight: 4-8 parts silica, 70-78 parts calcium aluminum borosilicate, 12-16 parts colorant, 3-5 parts synthetic fluorophlogopite, 0.5-1.5 parts mica, 0.5-0.8 parts tin oxide, and 0.01-0.05 parts aluminum hydroxide. The emulsion phase consists of an aqueous phase component, an oil phase component, and a preservative in a mass ratio of 75-85:15-25:0.7-1.

2. The aqueous phase component comprises the following raw materials in parts by weight: 1-2 parts butylene glycol, 0.08-0.15 parts carrageenan, 0.08-0.12 parts gellan gum, 0.3-0.7 parts glycerol, 0.08-0.12 parts potassium chloride, and 70-76 parts water; The oil phase component comprises the following raw materials in parts by weight: 8-10 parts of polyoxyethylene nonionic emulsifier and 12-18 parts of fatty acid alcohol ester moisturizing oil.

2. The baking powder and paste composition according to claim 1, characterized in that, The ointment phase is composed of polybutene, octyl dodecanol, dibutyl lauroyl glutamine and dibutyl ethylhexanoyl glutamine in a mass ratio of 35-48:38-42:6-8:2-3.

3. The baking powder and paste composition according to claim 1, characterized in that, The mass ratio of the baking powder matrix to the paste phase is 75-80:20-25; the mass ratio of the powder phase to the emulsion phase is 65-75:15-25.

4. The baking powder and paste composition according to claim 1, characterized in that, The colorant is one or more of CI 15850, CI77491, CI 77891, CI 77499 and CI 77492.

5. The baking powder and paste composition according to claim 1, characterized in that, The polyoxyethylene nonionic emulsifier is composed of C12-20 acid PEG-8 ester, PEG-12 polydimethylsiloxane and polysorbate-80 in a mass ratio of 7-9:3-5:2-3.

6. The baking powder and paste composition according to claim 1, characterized in that, The fatty acid alcohol ester moisturizing oil is composed of cetyl alcohol ethylhexanoate and isononyl isononanoate in a mass ratio of 2-5:1-3.

7. The baking powder and paste composition according to claim 1, characterized in that, The preservative is composed of phenoxyethanol, octyl glycol and ethylhexylglycerin in a mass ratio of 0.5-0.8:0.2-0.5:0.01-0.

02.

8. A method for preparing the baking powder and paste composition as described in any one of claims 1-7, characterized in that, The preparation steps include the following: (1) Powder preparation: Add silica, calcium aluminum borosilicate, colorant, synthetic fluorophlogopite, mica, tin oxide and aluminum hydroxide into a mixing pot and mix evenly to obtain powder; (2) Preparation of emulsion phase: Butylene glycol, carrageenan, gellan gum, glycerin, potassium chloride and water are added to an emulsification pot, heated and stirred until homogeneous to obtain an aqueous phase component; polyoxyethylene nonionic emulsifier and fatty acid alcohol ester moisturizing oil are added to an oil pot, heated and stirred until homogeneous to obtain an oil phase component; the oil phase component is added to the aqueous phase component, homogenized, and after homogenization, the temperature is lowered to 30-40℃, preservatives are added, and stirred until homogeneous to obtain an emulsion phase; (3) Preparation of baking powder substrate: The powder phase and the emulsion phase are mixed, heated and stirred evenly, and then filled into a mold to form. After freezing and demolding and baking, the baking powder substrate is obtained. (4) Preparation of ointment: Polybutene, octyldodecyl alcohol, dibutyllauroyl glutamine and dibutylethylhexanoyl glutamine are added to an oil pot, heated and stirred evenly to obtain the ointment phase; (5) Combination filling: control the temperature of the paste phase to 80-90℃, so that the paste phase covers the baking powder substrate, cool and set, and the baking powder and paste combination is obtained.

9. The method for preparing the baking powder and paste composition according to claim 8, characterized in that, In step (2), the homogenization rate is 8000-12000 rpm and the homogenization time is 3-5 min.

10. The method for preparing the baking powder and paste composition according to claim 8, characterized in that, In step (3), the freezing temperature for demolding is -35℃ to -25℃. After freezing for 20-30 minutes, the product is demolded. The baking process uses a gradient heating method, specifically: first, bake at 50-55℃ for 2-3 hours, then increase the temperature to 60-65℃ for 4-6 hours, and finally increase the temperature to 75-80℃ for 2-3 hours.

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