A gradual cheek rouge and a preparation method thereof

Abstract

The application relates to the cosmetic technical field, in particular to a gradient blush cream and a preparation method thereof. The gradient blush cream comprises the following raw materials: emollients, fillers, skin feel regulators, binders, colorants and preservatives. The preparation method of the gradient blush cream is as follows: (1) uniformly mixing the fillers, the skin feel regulators and the binders to obtain a powder phase mixture; (2) uniformly mixing and heating and stirring the emollients and the preservatives to obtain an oil phase mixture; (3) adding the powder phase mixture into the oil phase mixture drop by drop, and performing high-pressure homogenization and vacuum degassing to obtain a mud-like semi-finished product; (4) adding the colorants into the mud-like semi-finished product, and respectively preparing gradient semi-finished products with at least two different color grades; and (5) arranging the gradient semi-finished products with different color grades in a gradient arrangement mode into a forming mold to perform compression molding to obtain the gradient blush cream. The gradient blush cream has excellent comprehensive performance, a high sensory score, excellent gradient layering, texture, spreading, makeup holding and skin feel performance.

Description

Technical Field

[0001] This application relates to the field of cosmetic technology, and more specifically, to a gradient blush cream and its preparation method. Background Technology

[0002] Blush, as a core category of facial makeup, is primarily used to contour the cheeks and enhance complexion. Its product forms include powder, cream, and liquid. In recent years, with consumers' increasing demand for natural and layered makeup, blush products with multi-color gradient effects have gradually become a market hotspot. Gradient blush, through the natural transition of light and dark shades, can simulate the effect of a rosy glow from within the skin, avoiding the harsh look of single-color blush, and is therefore widely favored. Currently, existing gradient blush technology mainly focuses on powder systems. For example, gradient effects are achieved by layering or partitioning different colored powders, or by using water-soluble pigments diluted and applied in dots combined with freeze-drying processes to create a concentration gradient. These solutions are relatively mature in low-oil-content pressed and baked powder systems, and can present relatively clear color transitions. However, when the above technology is directly applied to powder paste systems with high oil content, there are significant technical bottlenecks: on the one hand, high oil content leads to a decrease in powder fluidity, and pastes of different color levels are prone to color bleeding and blurred boundaries during the pressing process, making it difficult to form a sharp and natural gradient transition; on the other hand, the viscous properties of oils significantly reduce the molding yield of traditional partitioned and layered filling processes, and pastes are prone to problems such as collapse and mixed color levels.

[0003] Meanwhile, existing cream blush products still have many shortcomings in terms of user experience. Traditional high-oil-content cream blushes generally suffer from problems such as a heavy, sticky texture, poor spreadability, and a heavy makeup look after application; while some formulas that aim for a refreshing feel suffer from severe fallout and insufficient staying power. In balancing a soft-focus effect and a pleasant tactile experience, current technologies mostly rely on single silicone elastomers or powder fillers, making it difficult to simultaneously achieve a mochi-like, bouncy texture, silky spreadability, and a soft-focus matte finish. Therefore, developing a gradient cream blush that can stably achieve a natural gradient effect within a high-oil-content cream blush system, while possessing a mochi-like texture, a soft-focus effect, and non-fallout properties, along with its preparation method, has become a pressing technical problem to be solved in this field. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, this application provides a gradient blush cream and its preparation method.

[0005] In the first aspect, this application provides a gradient blush cream, employing the following technical solution:

[0006] A gradient blush cream comprises the following ingredients in parts by weight: 30-45 parts emollient, 25-35 parts filler, 10-18 parts skin feel modifier, 8-15 parts binder, 5-12 parts colorant, and 0.5-1.5 parts preservative.

[0007] Furthermore, the emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20-30:1-3:1-2.

[0008] Furthermore, the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10-15:2-5.

[0009] Furthermore, the filler comprises mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20-24:7-9:0.05-0.08.

[0010] Furthermore, the skin feel modifier is composed of a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and polymethylsilsesquioxane in a mass ratio of 12-15:3-7.

[0011] Furthermore, the adhesive is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax and polyethylene wax in a mass ratio of 3-5:1-1.2:0.3-0.5.

[0012] Further, the colorant is one or more of CI 15850, CI 77491, CI 77891, CI 77499 and CI 77492.

[0013] Furthermore, the preservative comprises phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5-2:0.8-1.2.

[0014] Secondly, this application also provides a method for preparing a gradient blush cream, employing the following technical solution:

[0015] A method for preparing a gradient blush cream includes the following preparation steps:

[0016] (1) Add filler, skin feel modifier and binder into the mixing pot and mix evenly to obtain powder mixture;

[0017] (2) Mix the emollient and preservative, heat to 60-65℃, stir evenly to obtain an oil phase mixture;

[0018] (3) Add the powder mixture to the oil phase mixture, stir evenly, and then homogenize under high pressure and degas under vacuum to obtain a mud-like semi-finished product;

[0019] (4) Add coloring agent to the mud-like semi-finished product and prepare at least two different color gradient semi-finished products;

[0020] (5) Place the semi-finished products of different color levels into the molding mold in a gradient arrangement and press them to form a gradient blush cream.

[0021] Furthermore, in step (4), the oil content of the gradient semi-finished product is controlled at 35-45 wt%, and the viscosity is 80000-150000 mPa·s.

[0022] Furthermore, the pressing pressure in step (5) is 0.3-0.8 MPa, and the pressing time is 5-15 s.

[0023] Furthermore, the gradient arrangement in step (5) is one or more of the following: horizontal arrangement, vertical arrangement, and concentric circular arrangement.

[0024] Furthermore, the horizontal arrangement is a gradient arrangement along the left and right sides of the mold, the vertical arrangement is a gradient arrangement along the vertical direction of the mold, and the concentric circle arrangement is a ring-shaped gradient arrangement from the center of the mold outward.

[0025] Furthermore, the semi-finished products with different color levels are directly bonded together without any physical separation structure, and the contact surface forms a 0.5-2mm natural color transition zone.

[0026] In summary, this application has the following beneficial effects:

[0027] This application constructs a polyorganosiloxane moisturizing matrix by compounding polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane, which, together with diisostearyl malate and tocopherol, forms a moisturizing agent. This allows the formula oil to simultaneously possess a low-friction spreading base, high refractive index powder wetting ability, and antioxidant repair effects. Polydimethylsiloxane reduces the resistance of the paste application, while diphenylsiloxyphenyl polytrimethylsiloxane enhances the coating and wetting effect of inorganic filler powder and pigment powder, fundamentally avoiding problems such as powder agglomeration, application jamming, and powder fall-off. Tocopherol simultaneously improves the defects of long-term storage oxidation and deterioration of oils, ensuring the long-term stability of the paste texture.

[0028] This application prepares a skin feel modifier by compounding a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer with polymethylsilsesquioxane. The two polymers construct a three-dimensional flexible buffer network. The polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer gives the cream a soft and elastic base like mochi, improving the cream's plasticity. The polymethylsilsesquioxane provides a three-dimensional support framework, balancing the cream's softness and structural rigidity, preventing the cream from collapsing due to being too soft or dry due to being too hard. The compound system works together to achieve a soft-focus matte makeup effect. After makeup application, the skin does not feel heavy or sticky, and it takes into account both a smooth application experience and a breathable skin feel.

[0029] This application employs a ternary composite binder system consisting of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax. The three components form a gradient melt adhesive network. The hydrogenated C6-14 chain olefin polymer strengthens the bonding force between the oil and powder, enhancing the staying power and resistance to makeup fading. The synthetic wax provides a medium-strength buffer skeleton, buffering stress penetration during the pressing process of the two color-gradient semi-finished products and preventing color bleeding. The polyethylene wax improves the heat resistance and storage stability of the blush, inhibits oil seepage, and precisely controls the viscosity and molding strength of the blush. This results in a gradient blush with a smooth and even color transition, free from defects such as collapse, oil seepage, and color bleeding. The texture is delicate and elastic, applies silkily without clumping or fallout, and provides a refreshing and breathable finish. It is also resistant to dullness and patchiness even after prolonged wear. This simultaneously addresses the industry pain points of traditional blush creams, which struggle to balance molding stability, skin feel, makeup effect, and staying power. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the embodiments.

[0031] The polydimethylsiloxane used in the examples and comparative examples of this application was purchased from Jiangsu Pules Biotechnology Co., Ltd.; diphenylsiloxyphenyl polytrimethylsiloxane was purchased from Guangzhou Siteyuan Chemical Co., Ltd.; diisostearyl malate was purchased from Hubei Langbowan Biomedical Co., Ltd.; tocopherol was purchased from Henan Zhongchen Biotechnology Co., Ltd.; mica was purchased from Changzhou Jiefuxun New Material Technology Co., Ltd.; potassium magnesium fluorosilicate was purchased from Beijing Huamei Huli Biochemical Co., Ltd.; aluminum hydroxide was purchased from Lingshou Zhuoye Mineral Products Processing Plant; polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer was purchased from Hubei Langbowan Biomedical Co., Ltd.; polymethylsilsesquioxane was purchased from Hubei Luofu Biotechnology Co., Ltd.; hydrogenated C6-14 chain olefin polymer was purchased from Shanghai Zhaoheng Industrial Co., Ltd.; synthetic wax was purchased from Cangzhou Fengzhiyi Wax Industry Co., Ltd.; polyethylene wax was purchased from Jinan Woneng New Material Co., Ltd.; phenoxyethanol was purchased from Jiangsu Jufeng Chemical Technology Co., Ltd.; and 1,2-octanediol was purchased from Xuzhou Yihuiyang New Material Co., Ltd.

[0032] Examples 1-3 provide a gradient blush cream and its preparation method.

[0033] Example 1

[0034] A gradient blush cream comprises the following ingredients in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; and the filler is composed of... in a mass ratio of 20:7:0.0... The composition consists of 5% mica, potassium magnesium fluorosilicate, and aluminum hydroxide; the skin feel modifier consists of polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer and polymethylsilsesquioxane in a mass ratio of 12:3; the adhesive consists of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 3:1:0.3; the colorant consists of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a mass ratio of 2:1; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a mass ratio of 5:2:1; and the preservative consists of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0035] A method for preparing a gradient blush cream includes the following preparation steps:

[0036] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0037] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0038] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0039] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0040] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0041] Example 2

[0042] A gradient blush cream comprises the following ingredients in parts by weight: 38 parts emollient, 30 parts filler, 14 parts skin feel adjuster, 12 parts binder, 8 parts colorant, and 1 part preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 25:2:1.5; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 12:4; and the filler is composed of... The composition includes mica, potassium magnesium fluorosilicate, and aluminum hydroxide; the skin feel modifier consists of a polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer and polymethylsilsesquioxane in a mass ratio of 14:5; the adhesive consists of a hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 4:1.1:0.4; the colorant consists of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a mass ratio of 3:1.2; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a mass ratio of 6:3:2; and the preservative consists of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.8:1.

[0043] A method for preparing a gradient blush cream includes the following preparation steps:

[0044] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 42℃ and the stirring speed to 250rpm, and stir at a constant temperature for 25min until the materials are mixed evenly to obtain a powder mixture.

[0045] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 62°C at a rate of 2.5°C / min. Keep the stirring speed at 300 rpm and stir at a constant temperature for 25 min. After mixing evenly, the oil phase mixture is obtained.

[0046] (3) Maintain the temperature of the oil phase mixture at 62℃, and add the powder phase mixture at 42℃ to the oil phase mixture at a uniform rate over 10 min. Stir at 300 rpm for 25 min until the system is homogeneous. Then, homogenize under high pressure at 63℃ and 60 bar for 15 min. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 60℃, vacuum degree -0.07 MPa, and stirring speed of 80 rpm for 7 min to obtain a mud-like semi-finished product.

[0047] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 40wt%, and the viscosity is 120000mPa·s.

[0048] (5) Arrange the two different color gradient semi-finished products vertically along the upper and lower gradients of the mold, and place them into the molding mold for pressing. The pressing pressure is 0.5MPa and the pressing time is 10s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.1mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0049] Example 3

[0050] A gradient blush cream comprises the following ingredients in parts by weight: 45 parts emollient, 35 parts filler, 18 parts skin feel adjuster, 15 parts binder, 12 parts colorant, and 1.5 parts preservative. The emollient is composed of polysiloxane, diisostearyl malate, and tocopherol in a mass ratio of 30:3:2; the polysiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 15:5; and the filler is composed of... in a mass ratio of 24:9:0.08... The composition includes mica, potassium magnesium fluorosilicate, and aluminum hydroxide; the skin feel modifier consists of polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer and polymethylsilsesquioxane in a mass ratio of 15:7; the adhesive consists of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 5:1.2:0.5; the colorant consists of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a mass ratio of 4:1.5; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a mass ratio of 7:4:3; and the preservative consists of phenoxyethanol and 1,2-octanediol in a mass ratio of 2:1.2.

[0051] A method for preparing a gradient blush cream includes the following preparation steps:

[0052] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 45℃ and the stirring speed to 300rpm, and stir at a constant temperature for 30min until the materials are mixed evenly to obtain a powder mixture.

[0053] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 65°C at a constant temperature of 3°C / min. Keep the stirring speed at 400 rpm and stir for 30 min. After mixing evenly, the oil phase mixture is obtained.

[0054] (3) Maintain the temperature of the oil phase mixture at 65°C, and add the powder phase mixture at 45°C to the oil phase mixture at a uniform rate over 12 minutes. Stir at 400 rpm for 30 minutes until the system is homogeneous. Then, homogenize under high pressure at 65°C and 70 bar for 20 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 62°C, -0.075 MPa, and 90 rpm for 8 minutes to obtain a mud-like semi-finished product.

[0055] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 45wt%, and the viscosity is 150000mPa·s.

[0056] (5) Arrange the two different color gradient semi-finished products in concentric circles from the center of the mold outward in a ring gradient. Place the two different color gradient semi-finished products into the molding mold in a concentric circle arrangement and press them into shape. The pressing pressure is 0.8MPa and the pressing time is 15s. The different color gradient semi-finished products are directly attached without physical separation structure. The contact surface forms a 2mm natural color transition area to obtain gradient blush cream.

[0057] Comparative Example 1

[0058] A gradient blush cream comprises the following raw materials in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polydimethylsiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1. The filler is composed of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20:7:0.05. The skin feel adjuster is composed of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and polymethylsilsesquioxane in a mass ratio of 12:3. The binder is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 3:1:0.3. The colorant is composed of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1. The first color level coloring component is composed of CI 15850 and CI in a mass ratio of 2:1. The composition is 77491; the second color level coloring component is composed of CI 77891, CI 77499 and CI 77492 in a mass ratio of 5:2:1; the preservative is composed of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0059] A method for preparing a gradient blush cream includes the following preparation steps:

[0060] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0061] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0062] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0063] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0064] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0065] Comparative Example 2

[0066] A gradient blush cream comprises the following raw materials in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of diphenylsiloxyphenyl polytrimethylsiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1. The filler is composed of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20:7:0.05. The skin feel adjuster is composed of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and polymethylsilsesquioxane in a mass ratio of 12:3. The binder is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 3:1:0.3. The colorant is composed of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1. The first color level coloring component is composed of CI in a mass ratio of 2:1. The coloring components consist of CI 77891, CI 77499, and CI 77492 in a mass ratio of 5:2:1; the preservatives consist of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0067] A method for preparing a gradient blush cream includes the following preparation steps:

[0068] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0069] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0070] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0071] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0072] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0073] Comparative Example 3

[0074] A gradient blush cream comprises the following raw materials in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel modifier, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polysiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polysiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; the filler is composed of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20:7:0.05; the skin feel modifier is a polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer; the binder is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 3:1:0.3; the colorant is composed of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein the first color level coloring component is composed of CI in a mass ratio of 2:1. The coloring components consist of CI 15850 and CI 77491; the second color level coloring components consist of CI 77891, CI 77499 and CI 77492 in a mass ratio of 5:2:1; the preservatives consist of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0075] A method for preparing a gradient blush cream includes the following preparation steps:

[0076] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0077] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0078] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0079] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0080] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0081] Comparative Example 4

[0082] A gradient blush cream comprises the following raw materials in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; the filler is composed of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20:7:0.05; the skin feel adjuster is polymethylsilsesquioxane; the binder is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax, and polyethylene wax in a mass ratio of 3:1:0.3; the colorant is composed of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein the first color level coloring component is composed of CI in a mass ratio of 2:1. The coloring components consist of CI 77891, CI 77499, and CI 77492 in a mass ratio of 5:2:1; the preservatives consist of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0083] A method for preparing a gradient blush cream includes the following preparation steps:

[0084] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0085] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0086] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0087] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0088] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0089] Comparative Example 5

[0090] A gradient blush cream comprises the following ingredients in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; and the filler is composed of... The composition consists of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a ratio of 20:7:0.05; the skin feel modifier consists of polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and polymethylsilsesquioxane in a mass ratio of 12:3; the adhesive consists of synthetic wax and polyethylene wax in a mass ratio of 1:0.3; the colorant consists of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a mass ratio of 2:1; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a mass ratio of 5:2:1; and the preservative consists of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0091] A method for preparing a gradient blush cream includes the following preparation steps:

[0092] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0093] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0094] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0095] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0096] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0097] Comparative Example 6

[0098] A gradient blush cream comprises the following ingredients in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; and the filler is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 20:7:1. The composition consists of 0.05% mica, potassium magnesium fluorosilicate, and aluminum hydroxide; the skin feel modifier consists of a polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer and polymethylsilsesquioxane in a mass ratio of 12:3; the adhesive consists of a hydrogenated C6-14 chain olefin polymer and polyethylene wax in a mass ratio of 3:0.3; the colorant consists of a first color level coloring component and a second color level coloring component in a mass ratio of 1:1; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a mass ratio of 2:1; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a mass ratio of 5:2:1; the preservative consists of phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5:0.8.

[0099] A method for preparing a gradient blush cream includes the following preparation steps:

[0100] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0101] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0102] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0103] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0104] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0105] Comparative Example 7

[0106] A gradient blush cream comprises the following ingredients in parts by weight: 30 parts emollient, 25 parts filler, 10 parts skin feel adjuster, 8 parts binder, 5 parts colorant, and 0.5 parts preservative. The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20:1:1; the polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10:2; and the filler is composed of polydimethylsiloxane in a mass ratio of 20:1:1. The composition consists of mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a 7:0.05 ratio; the skin feel modifier consists of polydimethylsiloxane / vinyl polydimethylsiloxane crosslinked polymer and polymethylsilsesquioxane in a 12:3 mass ratio; the adhesive consists of hydrogenated C6-14 chain olefin polymer and synthetic wax in a 3:1 mass ratio; the colorant consists of a first color level coloring component and a second color level coloring component in a 1:1 mass ratio; wherein, the first color level coloring component consists of CI 15850 and CI 77491 in a 2:1 mass ratio; the second color level coloring component consists of CI 77891, CI 77499, and CI 77492 in a 5:2:1 mass ratio; and the preservative consists of phenoxyethanol and 1,2-octanediol in a 1.5:0.8 mass ratio.

[0107] A method for preparing a gradient blush cream includes the following preparation steps:

[0108] (1) Add filler, skin feel modifier and binder to the mixing pot, set the temperature to 40℃ and the stirring speed to 200rpm, and stir at a constant temperature for 20min until the materials are mixed evenly to obtain a powder mixture.

[0109] (2) Mix the emollient and the preservative, and heat the mixture from room temperature to 60°C at a rate of 2°C / min. Keep the stirring speed at 200 rpm and stir at a constant temperature for 20 min. After mixing evenly, the oil phase mixture is obtained.

[0110] (3) Maintain the temperature of the oil phase mixture at 60°C, and add the powder phase mixture at 40°C to the oil phase mixture at a uniform rate over 8 minutes. Stir at 200 rpm for 20 minutes until the system is homogeneous. Then, homogenize under high pressure at 60°C and 50 bar for 10 minutes. After homogenization, transfer the material to a vacuum degassing kettle and degas under vacuum at 58°C, -0.065 MPa, and 70 rpm for 5 minutes to obtain a mud-like semi-finished product.

[0111] (4) Divide the mud-like semi-finished product into two equal parts, add the first color level coloring component and the second color level coloring component respectively, and mix them into two different color level gradient semi-finished products. The oil content of the gradient semi-finished product is controlled at 35wt%, and the viscosity is 80000mPa·s.

[0112] (5) Arrange the two different color gradient semi-finished products in a horizontal arrangement along the mold, and press them into the molding mold. The pressing pressure is 0.3MPa and the pressing time is 5s. The different color gradient semi-finished products are directly attached without physical separation structure, and a 0.5mm natural color transition area is formed on the contact surface to obtain gradient blush cream.

[0113] Performance testing

[0114] To verify the comprehensive performance of the gradient blush cream prepared in this application, specific performance tests were conducted on the samples of Examples 1-3 and Comparative Examples 1-7. The test items covered six core indicators: gradient shaping effect, cream texture, spreadability, fallout, makeup lasting effect, 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.

[0115] I. Subjective sensory evaluation

[0116] Gradient effect: Based on visual observation and macro photography analysis, the maximum score is 10 points: 9-10 points: Clear color gradation boundaries, natural and smooth transitions, no color bleeding, no collapsing of the paste, and no color mixing; 6-8 points: The color gradation transition is basically natural, with slight blurring of the boundaries, and no obvious collapse or color bleeding; 3-5 points: Severe color mixing, blurred boundaries, and slight collapse; 0-2 points: Complete color bleeding, severe deformation and collapse of the paste, and no gradient effect;

[0117] Cream texture: Touch evaluation, full score 10 points: 9-10 points: Soft and bouncy texture, with a mochi-like texture, moderate softness and firmness, delicate and even; 6-8 points: Relatively delicate texture, slightly hard / soft, average elasticity; 3-5 points: Rough texture, no elasticity, dry or too sticky; 0-2 points: The cream is clumpy and loose, and cannot be used normally.

[0118] Spreadability: Take an equal amount of sample (0.05g) and apply it evenly to the skin of the standard test arm. The full score is 10 points: 9-10 points: Silky smooth and easy to spread, no jamming or clumping, and even application; 6-8 points: Smooth overall spread, slight jamming in some areas, and no clumping; 3-5 points: High spreadability, frequent jamming, and a small amount of clumping; 0-2 points: Difficult to spread, large amount of clumping, and unable to apply makeup evenly.

[0119] Powder fallout: After application, gently blow on the skin to test the powder fallout. The maximum score is 10 points: 9-10 points: no powder fallout, no powder fallout; 6-8 points: almost no powder fallout, only a very small amount of powder residue; 3-5 points: slight powder fallout, obvious powder fallout; 0-2 points: severe powder fallout, a large amount of powder fallout.

[0120] Makeup staying power: Wear the makeup for 8 hours in a normal indoor environment and observe for makeup fading, dullness, and patchiness. The maximum score is 10 points: 9-10 points: No makeup fading or dullness after 8 hours, and the makeup is complete and natural; 6-8 points: Slight dullness after 8 hours, no patchiness, and no obvious makeup fading; 3-5 points: Makeup fading and slight patchiness appear after 4-6 hours; 0-2 points: Severe makeup fading and patchiness within 4 hours.

[0121] Skin comfort: Skin feel evaluation after makeup application, out of 10: 9-10: refreshing and non-sticky, breathable and burden-free, suitable for the skin; 6-8: overall refreshing, slight presence, no stickiness or stuffiness; 3-5: slightly sticky and stuffy, heavy to the touch; 0-2: severely sticky and stuffy, skin discomfort.

[0122] II. Quantitative Detection by Instruments

[0123] 1. The rheological stability and viscosity of the gradient blush cream were tested using a rotational rheometer. A 40 mm parallel plate fixture was used, and oscillation frequency scanning and steady-state shear tests were conducted at 25°C. The storage modulus G′, loss modulus G″, loss factor tanδ, and 10 s⁻¹ were measured. -1 Shear viscosity and yield stress; G′ reflects the deformation resistance of the paste during compression molding. Viscosity matches the control index of semi-finished products in the preparation steps. High-temperature rheological scanning can simulate facial heating conditions and quantify the risk of makeup smudging and dullness under high temperature.

[0124] 2. The spectrophotometer's ΔE measurement accurately quantifies the gradient shaping effect;

[0125] Under the D65 standard light source, the pure first color level, the pure second color level, and the Lab* color space parameters of the intermediate color transition zone were measured respectively, and the color difference ΔE between color levels was calculated. The average color difference was used to objectively distinguish the naturalness of the transition, color bleeding, and boundary defects, replacing the single visual observation. The gradient effect data is repeatable.

[0126] 3. The friction coefficient meter is used to test the smoothness of the spread. The VITRO-SKIN artificial skin is used to simulate the human cheek to measure the dynamic friction coefficient μ of the cream coating. The lower the friction coefficient, the less resistance to application and the better the spreadability, which accurately corresponds to the sensory evaluation results of spreadability sticking and clumping.

[0127] The specific test results are shown in Tables 1 and 2.

[0128] Table 1. Subjective sensory performance parameters of the gradient blush creams prepared in Examples 1-3 and Comparative Examples 1-7.

[0129]

[0130] Table 2. Instrumental quantitative performance parameters of the gradient blush creams prepared in Examples 1-3 and Comparative Examples 1-7.

[0131]

[0132] As shown in Tables 1 and 2, the gradient blush creams prepared in Examples 1-3 of this application exhibit excellent overall performance, with sensory scores all exceeding 9.0 points. They demonstrate superior gradient layering, texture, spreadability, staying power, and skin feel. Rheological testing reveals higher storage modulus, yield stress, and shear viscosity in these examples, indicating sufficient structural strength to prevent color bleeding and collapse during storage and use, and strong molding stability. The samples also exhibit higher total color difference ΔE, clear color gradation distinction, and smooth transitions. The coefficient of friction is only 0.09-0.12, resulting in smooth application without any sticking. The components of the gradient blush cream prepared in this application work synergistically, simultaneously addressing molding stability, makeup effect, and skin feel, solving the problems of color bleeding and unbalanced makeup effects associated with traditional high-oil blush creams, making it highly practical. This application solves the problems of color bleeding, poor molding, and difficulty in balancing skin feel and makeup effect in existing high-oil blush creams, possessing extremely high market application value.

[0133] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A gradient blush cream, characterized in that, The ingredients include the following parts by weight: 30-45 parts emollient, 25-35 parts filler, 10-18 parts skin feel modifier, 8-15 parts binder, 5-12 parts colorant, and 0.5-1.5 parts preservative.

2. The gradient blush cream according to claim 1, characterized in that, The emollient is composed of polyorganosiloxane, diisostearyl malate, and tocopherol in a mass ratio of 20-30:1-3:1-2.

3. The gradient blush cream according to claim 2, characterized in that, The polyorganosiloxane is composed of polydimethylsiloxane and diphenylsiloxyphenyl polytrimethylsiloxane in a mass ratio of 10-15:2-5.

4. The gradient blush cream according to claim 1, characterized in that, The filler comprises mica, potassium magnesium fluorosilicate, and aluminum hydroxide in a mass ratio of 20-24:7-9:0.05-0.

08.

5. The gradient blush cream according to claim 1, characterized in that, The skin feel modifier is composed of a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and polymethylsilsesquioxane in a mass ratio of 12-15:3-7.

6. The gradient blush cream according to claim 1, characterized in that, The adhesive is composed of hydrogenated C6-14 chain olefin polymer, synthetic wax and polyethylene wax in a mass ratio of 3-5:1-1.2:0.3-0.

5.

7. The gradient blush cream according to claim 1, characterized in that, The colorant is one or more of CI 15850, CI 77491, CI 77891, CI 77499 and CI 77492.

8. The gradient blush cream according to claim 1, characterized in that, The preservative comprises phenoxyethanol and 1,2-octanediol in a mass ratio of 1.5-2:0.8-1.

2.

9. A method for preparing a gradient blush cream as described in any one of claims 1-8, characterized in that, The preparation steps include the following: (1) Add filler, skin feel modifier and binder into the mixing pot and mix evenly to obtain powder mixture; (2) Mix the emollient and preservative, heat to 60-65℃, stir evenly to obtain an oil phase mixture; (3) Add the powder mixture to the oil phase mixture, stir evenly, and then homogenize under high pressure and degas under vacuum to obtain a mud-like semi-finished product; (4) Add coloring agent to the mud-like semi-finished product and prepare at least two different color gradient semi-finished products; (5) Place the semi-finished products of different color levels into the molding mold in a gradient arrangement and press them to form a gradient blush cream.

10. The method for preparing the gradient blush cream according to claim 9, characterized in that, In step (4), the oil content of the gradient semi-finished product is controlled at 35-45 wt%, and the viscosity is 80000-150000 mPa·s; in step (5), the pressing pressure is 0.3-0.8 MPa, and the pressing time is 5-15 s.

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