Liquid powder eye shadow and preparation method thereof

Abstract

The invention relates to the field of cosmetic materials, and particularly discloses a liquid powder eye shadow and a preparation method thereof. The liquid powder eye shadow is prepared from the following raw materials in parts by weight: 10 to 30 parts of mica, 0.2 to 1.3 parts of silica, 20 to 60 parts of pearling agent, 3 to 7 parts of octyldodecanol stearoyloxy stearate, 3 to 7 parts of bis-diglycerol polyacyl adipate-2, 3 to 7 parts of polydimethylsiloxane, 1 to 5 parts of pentaerythritol tetraisostearate and 0.5 to 1.5 parts of preservative. The preservative comprises phenoxyethanol and caprylyl glycol, and the pearling agent comprises mica, synthetic fluorophlogopite and iron oxide red; according to the prepared liquid powder eye shadow, the emulsion system is used as a medium to form the liquid powder eye shadow, smooth skin feeling and moistening degree are provided, uniform dispersion of components is promoted, and the prepared eye shadow has a long makeup maintaining effect and color rendering degree.

Description

Technical Field

[0001] The present application relates to the field of cosmetic materials, and in particular to a liquid powder eye shadow and a preparation method thereof. Background Art

[0002] Eye shadow is a kind of cosmetics applied to the upper eyelid and the end of the eye. Eye shadow has high saturation and can make the eyes look bumpy. Common eye shadows are generally powdery and ointment-based. Powder-based eye shadows are easy to fly, and ointments are relatively sticky and easy to get stuck in a line, which reduces the consumer experience. In addition, during use, powdery and ointment-based eye shadows are easy to stain clothes and other places after falling. Liquid powder eye shadow converts liquid eye shadow mixture into powder eye shadow through a special process, thus creating eye shadow with the touch of high-end fabrics. This eye shadow combines the delicateness of liquid powder and the durability of solid powder, doubles the ductility, and has a clean, clear and advanced makeup effect, making makeup more convenient and quick, reducing the problem of traditional powder eye shadows easily flying and agglomerating, and further improving the convenience and aesthetics of the product.

[0003] Existing liquid powder eyeshadows cannot ensure the product's effect while ensuring its stability and durability. Especially during long-term use, the product is prone to problems such as powder flying, uneven agglomeration, and lack of makeup retention, which affects the user experience. Summary of the invention

[0004] In order to improve the stability and lasting effect of liquid powder eye shadow, the present application provides a liquid powder eye shadow and a preparation method thereof.

[0005] In a first aspect, the present application provides a liquid powder eye shadow, which adopts the following technical solution: A liquid powder eye shadow comprises the following raw materials in parts by weight: 10-30 parts of mica, 0.2-1.3 parts of silica, 20-60 parts of pearlescent agent, 3-7 parts of octyldodecanol stearoyloxy stearate, 3-7 parts of bis-diglyceryl polyacyl adipate-2, 3-7 parts of polydimethylsiloxane, 1-5 parts of pentaerythritol tetraisostearate, and 0.5-1.5 parts of preservative; the preservative comprises phenoxyethanol and caprylyl glycol, and the pearlescent agent comprises mica, synthetic fluorphlogopite and red iron oxide.

[0006] By adopting the above technical solution, mica, synthetic fluorphlogopite and red iron oxide as pearlescent agents can produce color and gloss effects by reflecting and refracting light, thereby enhancing the visual effect of eye shadow. The tiny particles of silica have the effect of controlling oil, can fill gaps, improve the smoothness and adhesion of eye shadow, and make the eye shadow have a long-lasting makeup effect and color rendering. Octyldodecanol stearoyl stearate, bis-diglycerol polyacyl adipate-2, polydimethylsiloxane and pentaerythritol tetraisostearate are used as emollients and emulsifiers to reduce the tension of the oil-water interface, promote the uniform mixing of the oil-water phase, adjust the texture of the eye shadow, make the eye shadow easier to apply, and provide a smooth skin feel and moisturizing degree. Octyldodecanol stearoyl stearate and bis-diglycerol polyacyl adipate-2 are used as emulsifiers to ensure the stable mixing of the oil-water phase, promote the uniform dispersion of the ingredients by reducing the tension of the oil-water interface, prevent the separation of oil and water, and thus reduce the stratification phenomenon. Liquid powder eyeshadow formed by using an emulsified system as a medium has better makeup effect and texture than traditional baked powder eyeshadow. Polydimethylsiloxane can have a coating effect on mica and silica, which can improve the compatibility of mica, silica and liquid matrix, reduce the phenomenon of agglomeration and powder flying, and thus improve the stability and long-lasting effect of eyeshadow. Phenoxyethanol and caprylyl glycol are preservatives that indirectly improve the stability and long-lasting effect of eyeshadow by inhibiting the growth of microorganisms and extending the shelf life of eyeshadow.

[0007] Preferably, the preservative comprises the following raw materials in a weight ratio: 60-70% phenoxyethanol and 30-40% caprylyl glycol.

[0008] Preferably, the pearlescent agent comprises the following raw materials in weight ratio: 40-50% mica, 11-16% synthetic fluorphlogopite, and 36-46% red iron oxide.

[0009] By adopting the above technical solution, a small amount of synthetic fluorphlogopite is added to the pearlescent agent, which can provide a stronger and brighter gloss effect than conventional mica and has a more uniform particle size. At the same time, synthetic fluorphlogopite has better chemical stability and compatibility with liquid matrix, is not easily affected by environmental factors such as temperature and humidity, and improves the uniformity and stability of eye shadow. Mica and synthetic fluorphlogopite have a certain light-shielding effect, which can protect other ingredients in eye shadow from damage by ultraviolet rays and extend the durability of the product.

[0010] Preferably, the pearlescent agent is pre-surface-modified by a dispersing modifier, comprising the following specific steps: The dispersion modifier is mixed with the pearlescent agent, spray-dried after dispersion, and finally pulverized by air flow to obtain the modified pearlescent agent.

[0011] Preferably, the dispersion modifier is one of a fatty acid salt and a long-chain fatty acid.

[0012] By adopting the above technical scheme, fatty acid salts and long-chain fatty acids can form chemical bonds with the surface active groups of the pearlescent agent powder, and finally achieve organic modification on the surface of the pearlescent agent, which can promote the pearlescent agent to be evenly dispersed in the organic liquid medium, improve the dispersibility and liquid phase stability of the pearlescent agent in liquid powder eye shadow, improve the uniformity of the eye shadow, and reduce the phenomenon of stratification and uneven agglomeration.

[0013] Preferably, the mass ratio of the dispersing modifier to the pearlescent agent is (0.5-1):1.

[0014] In a second aspect, the present application provides a method for preparing liquid powder eye shadow, which adopts the following technical solution: A method for preparing liquid powder eye shadow comprises the following specific steps: Mix mica, silica and pearlescent agent evenly to form a powder phase mixture, mix octyldodecanol stearoyloxy stearate, bis-diglyceryl polyacyl adipate-2, polydimethylsiloxane, pentaerythritol tetraisostearate and preservatives, heat and stir evenly to form an oil phase mixture, spray the oil phase mixture on the powder phase mixture, stir evenly, add isododecane, stir and adjust to form a flowing mixture, vacuum press and form under low pressure, dry and bake to obtain liquid powder eye shadow.

[0015] By adopting the above technical scheme, the eye shadow mixture is pressed and formed under low pressure with isododecane as the medium, and the solvent is volatilized through subsequent baking. The prepared liquid powder eye shadow has good molding effect and does not fly powder.

[0016] Preferably, the low pressure is 0.1-1 MPa.

[0017] In summary, this application has the following beneficial effects: 1. Since the present application uses octyldodecyl stearyloxy stearate, bis-diglyceryl polyacyl adipate-2, polydimethylsiloxane and pentaerythritol tetraisostearate as emollients and emulsifiers, and uses the emulsification system as a medium to form a liquid powder eye shadow, the texture of the eye shadow is adjusted, making the eye shadow easier to apply and providing a smooth skin feel. Phenoxyethanol and caprylyl glycol are used as preservatives to extend the shelf life of the eye shadow by inhibiting the growth of microorganisms. The tiny particles of silica have an oil control effect, improve the smoothness and adhesion of the eye shadow, and make the eye shadow have a silky skin feel and moisturizing degree.

[0018] 2. In this application, fatty acid salts and fatty acids are used to organically modify the surface of the pearlescent agent to improve the dispersibility and compatibility of the pearlescent agent in the organic molecular medium, reduce the agglomeration and agglomeration of the pearlescent agent, and thus improve the uniformity and durability of the eye shadow. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with embodiments.

[0020] All raw materials in the examples are commercially available. Example

[0021] Example 1 This embodiment provides a liquid powder eye shadow, comprising the following raw materials in parts by weight: 28g of mica, 1g of silica, 50g of pearlescent agent, 5.7g of octyldodecyl stearoyloxy stearate, 5.7g of bis-diglyceryl polyacyl adipate-2, 5.7g of polydimethylsiloxane, 2.9g of pentaerythritol tetraisostearate, and 1g of preservative; the preservative comprises 0.65g of phenoxyethanol and 0.35g of caprylyl glycol, and the pearlescent agent comprises 22.5g of mica, 7g of synthetic fluorphlogopite, and 20.5g of red iron oxide. The viscosity of polydimethylsiloxane is 200cst.

[0022] The preparation method of liquid powder eye shadow comprises the following specific steps: Mix mica, silica and pearlescent agent, stir at a speed of 2500r / min for 3 minutes to form a powder phase mixture, mix octyldodecanol stearyloxystearate, bis-diglycerol polyacyl adipate-2, polydimethylsiloxane, pentaerythritol tetraisostearate and preservatives, heat to 53°C, stir at a speed of 2500r / min for 20 minutes to form an oil phase mixture, spray the oil phase mixture on the powder phase mixture at a stirring speed of 2500r / min, stir for 3 minutes to form an eye shadow mixture, add isododecane dropwise to the eye shadow mixture, stir until it is in a fluid state, the mass ratio of isododecane to the eye shadow mixture is 1:10, press into shape at 0.5MPa, and bake at 50°C for 10 hours to obtain liquid powder eye shadow.

[0023] Example 2 The difference between Example 2 and Example 1 is that the amount of mica used in the liquid powder eye shadow raw material is 10g, the amount of silica used is 0.2g, the amount of pearlescent agent used is 20g, the amount of octyldodecanol stearoyl stearate used is 3g, the amount of bis-diglycerol polyacyl adipate-2 used is 7g, the amount of polydimethylsiloxane used is 3g, the amount of pentaerythritol tetraisostearate is 1g, and the preservative is 0.5g; the preservative includes 0.33g of phenoxyethanol and 0.17g of caprylyl glycol, and the pearlescent agent includes 9g of mica, 2.8g of synthetic fluorphlogopite and 8.2g of red iron oxide.

[0024] Example 3 The difference between Example 3 and Example 1 is that the amount of mica used in the liquid powder eye shadow raw material is 30g, the amount of silica used is 1.3g, the amount of pearlescent agent used is 60g, the amount of octyldodecanol stearoylstearate used is 7g, the amount of bis-diglycerol polyacyl adipate-2 used is 3g, the amount of polydimethylsiloxane used is 7g, the amount of pentaerythritol tetraisostearate used is 5g, and the preservative is 1.5g; the preservative includes 0.97g of phenoxyethanol and 0.53g of caprylyl glycol, and the pearlescent agent includes 27g of mica, 8.4g of synthetic fluorphlogopite and 24.6g of red iron oxide.

[0025] Example 4 The difference between Example 4 and Example 1 is that the pearlescent agent is pre-surface-modified by a dispersing modifier, and the dispersing modifier is a long-chain fatty acid, wherein the long-chain fatty acid is stearic acid.

[0026] The preparation method of liquid powder eye shadow comprises the following specific steps: S1: The modifier and the pearlescent agent are mixed, the mass ratio of the dispersed modifier and the pearlescent agent is 0.8:1, high-speed dispersion is performed at a speed of 1500 r / min for 10 minutes, and then spray drying is performed, and finally air flow pulverization is performed to obtain the modified pearlescent agent.

[0027] S2: mica, silica and modified pearlescent agent are mixed, stirred at a speed of 2500r / min for 3min to form a powder phase mixture, octyldodecanol stearyloxystearate, bis-diglycerol polyacyl adipate-2, polydimethylsiloxane, pentaerythritol tetraisostearate and preservatives are mixed, the temperature is raised to 53°C, and stirred at a speed of 2500r / min for 20min to form an oil phase mixture, the oil phase mixture is sprayed on the powder phase mixture at a stirring speed of 2500r / min, and stirred for 3min to form an eye shadow mixture, isododecane is added dropwise to the eye shadow mixture, and stirred until it is in a fluid state, the mass ratio of isododecane to the eye shadow mixture is 1:10, and the mixture is pressed into shape at 0.5MPa and baked at 50°C for 10h to obtain a liquid powder eye shadow.

[0028] Example 5 The difference between Example 5 and Example 4 is that the dispersion modifier is arachidic acid.

[0029] Example 6 The difference between Example 6 and Example 4 is that the dispersion modifier is stearate.

[0030] Example 7 The difference between Example 7 and Example 4 is that in the preparation method of liquid powder eye shadow, the mass ratio of the dispersing modifier to the pearlescent agent is 0.5:1.

[0031] Example 8 The difference between Example 8 and Example 4 is that in the preparation method of liquid powder eye shadow, the mass ratio of the dispersing modifier to the pearlescent agent is 1:1.

[0032] Comparative Example Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that octyldodecanol stearoyloxy stearate and bis-diglyceryl polyacyl adipate-2 are not used in the liquid powder eye shadow raw materials.

[0033] Performance testing The following performance tests were performed on the liquid powder eye shadows provided in Examples 1-8 and Comparative Example 1 of the present application, and the specific test results are shown in Table 1.

[0034] Detection Methods 1. A total of 30 female volunteers aged 20-40 were selected to try the liquid powder eye shadows provided in Examples 1-9 and Comparative Example 1, and the skin moisturizing degree, application uniformity, and degree of powder flying and residue falling of the eye shadows were tested and evaluated, where 5 points were very excellent, 4 points were excellent, 3 points were average, 2 points were poor, and 1 point was very poor; the scoring results were averaged.

[0035] 2. Drop resistance The stability of the powder is determined by its falling performance. The test process is as follows: assemble the prepared powder into a powder box with a cylindrical cavity in it. The diameter of the cylinder is 3.5-5.0 cm and the height is 0.3-1 cm. After 12 hours, drop the box from a height of 50 cm onto a PVC board to observe the number of times cracks and fissures appear. Take the average value of the five tests to evaluate the eye shadow stability effect.

[0036] Table 1: Performance test results data table Example Moisture Uniformity Flying powder and falling slag Anti-drop times Example 1 4.7 4.7 4.8 21 Example 2 4.6 4.6 4.6 20 Example 3 4.5 4.6 4.7 19 Example 4 4.9 5 5 30 Example 5 4.8 4.9 5 29 Example 6 4.9 5 4.9 31 Example 7 4.8 4.8 4.8 28 Example 8 4.9 4.9 4.9 29 Comparative Example 1 4 3.5 3 15 It can be seen from the performance test results that the liquid eye shadow powder prepared by the present application is bright in color, does not fly powder, does not fade, has good uniformity and color rendering, and has a soft skin feel and moisturizing degree. It can be seen from the drop resistance test that the liquid eye shadow powder prepared by the present application has good stability and reduces the phenomenon of cracking and cracking. By comparing Comparative Example 1 with Example 1, it can be seen that octyldodecanol stearyloxy stearate and bis-diglycerol polyacyl adipate-2 are not used in the eye shadow raw materials of Comparative Example 1. It can be seen from the performance test results that the uniformity and moisturizing degree of the prepared eye shadow are significantly reduced, and then the phenomenon of flying powder and cracking is prone to occur. It is further explained that octyldodecanol stearyloxy stearate and bis-diglycerol polyacyl adipate-2 as emulsifiers can promote the uniform mixing of oil and water phases, make eye shadow easier to apply, and improve the texture and moisturizing degree of eye shadow.

[0037] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A liquid powder eye shadow, characterized in that: The invention comprises the following raw materials in parts by weight: 10-30 parts of mica, 0.2-1.3 parts of silica, 20-60 parts of pearlescent agent, 3-7 parts of octyldodecanol stearoyloxy stearate, 3-7 parts of bis-diglycerol polyacyl adipate-23, 3-7 parts of polydimethylsiloxane, 1-5 parts of pentaerythritol tetraisostearate and 0.5-1.5 parts of preservative; the preservative comprises phenoxyethanol and caprylyl glycol, and the pearlescent agent comprises mica, synthetic fluorphlogopite and red iron oxide.

2. The liquid powder eye shadow according to claim 1, characterized in that: The preservative comprises the following raw materials in weight ratio: 60-70% phenoxyethanol and 30-40% caprylyl glycol.

3. The liquid powder eye shadow according to claim 1, characterized in that: The pearlescent agent comprises the following raw materials in weight ratio: 40-50% mica, 11-16% synthetic fluorphlogopite, and 36-46% red iron oxide.

4. The liquid powder eye shadow according to claim 3, characterized in that: The pearlescent agent is pre-surface-modified by a dispersing modifier, and the method comprises the following specific steps: The dispersion modifier is mixed with the pearlescent agent, spray-dried after dispersion, and finally pulverized by air flow to obtain the modified pearlescent agent.

5. The liquid powder eye shadow according to claim 4, characterized in that: The dispersion modifier is one of a fatty acid salt and a long-chain fatty acid.

6. The liquid powder eye shadow according to claim 4, characterized in that: The mass ratio of the dispersing modifier to the pearlescent agent is (0.5-1):

1.

7. A method for preparing the liquid powder eye shadow according to any one of claims 1 to 6, characterized in that: The specific steps include: Mica, silica and pearlescent agent are mixed evenly to form a powder phase mixture, octyldodecanol stearoyloxy stearate, bis-diglyceryl polyacyl adipate-2, polydimethylsiloxane, pentaerythritol tetraisostearate and preservatives are mixed, the temperature is raised and stirred evenly to form an oil phase mixture, the oil phase mixture is sprayed on the powder phase mixture, stirred evenly, isododecane is added dropwise, stirring and adjusting to form a fluid mixture, suction pressing and molding under low pressure, drying and baking to obtain liquid powder eye shadow.

8. The method for preparing liquid powder eye shadow according to claim 7, characterized in that: The low pressure is 0.1-1 MPa.