Cosmetic powder with high fluidity and high covering power as well as preparation and use methods thereof

Abstract

Deionized water, glycerin, an antioxidant and a preservative are fully mixed to prepare a mixed solution, and hydrophobic silane modified silicon dioxide and the mixed solution are fully mixed in a high-speed powder stirring homogenizer to prepare mixed powder A; adding fluorophlogopite and a coloring agent into a high-speed powder stirring homogenizer, and fully mixing to obtain mixed powder B; then the mixed powder A and the mixed powder B are fully mixed to prepare the make-up powder with the particle size not exceeding 500 meshes, the make-up powder is fine and light in particle size, and the make-up skin is soft and fine in touch. The makeup powder has high fluidity and can be contained in the bottle body, the makeup powder is sprayed out through the spray head by utilizing the pressure difference inside and outside the bottle body, and the makeup applying mode is novel and convenient; in addition, the powder has the characteristic of high covering power, and after the sprayed powder is simply smeared for multiple times for makeup, the color difference of the part covered by the makeup powder is small, so that the makeup effect with a good covering effect is formed.

Description

Technical Field

[0001] The present invention relates to the field of cosmetics, and in particular to a cosmetic powder with high fluidity and high covering power and application thereof. Background Art

[0002] Currently, most blushes and eyeshadows are commercially packaged as pastes in flat boxes. This packaging format requires users to apply makeup using auxiliary brushes, such as blush brushes and angled brushes. These brushes are often lacking in the basic makeup tools we carry with us on daily commutes. Furthermore, blushes and eyeshadows contain a high proportion of oily substances, which can easily cause them to stick to the skin. Simply applying with makeup cakes or makeup balls creates a noticeable difference in coverage, with uneven thickness at the beginning and end of the application area, making it difficult for users to achieve the desired look. Summary of the Invention

[0003] The object of the present invention is to provide a cosmetic powder with high fluidity and high covering power. The powder is light, soft and delicate to the touch, has high fluidity and high covering power, and can form a thin layer of uniform color on the application area by spraying the cosmetic powder and simply applying the makeup. The use method is novel and convenient, and the user can obtain the desired ideal makeup effect through relatively convenient makeup application.

[0004] To achieve the above objectives, the present invention is implemented by the following technical means: A cosmetic powder with high fluidity and high covering power, comprising a mixture of the following components in percentage by mass: 15%-20% glycerin, 12%-18% fluorphlogopite, 5%-8% hydrophobic silane-modified silica, 0.1%-0.5% antioxidant, 0.3%-0.8% preservative, 3%-5.75% colorant, and 50%-60% water; the particle size of the cosmetic powder does not exceed 500 mesh.

[0005] Furthermore, the hydrophobic silyl-modified silica is a mixture of one or more of silylated silica, dimethyldichlorosilylated silica, and polydimethylsiloxylated silica, and the silylated silica: dimethyldichlorosilylated silica: polydimethylsiloxylated silica are mixed in a ratio of (0-5): (0-5): (0-5).

[0006] Furthermore, the antioxidant is p-hydroxyacetophenone, and the preservative is a mixture of one or more of propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, octanediol, phenylethyl alcohol, phenoxyethanol, and octanol, and the p-hydroxyacetophenone:preservative is mixed in a ratio of (3-5):(3-5).

[0007] Furthermore, the colorant contains a red colorant.

[0008] Furthermore, the colorant is titanium dioxide: red colorant mixed in a ratio of (10-20): (1-3).

[0009] Furthermore, the particle sizes of the fluorphlogopite, hydrophobic silane-modified silica, and titanium dioxide are all 500-1000 meshes.

[0010] The present invention also provides a method for preparing the high-fluidity and high-covering cosmetic powder, which is specifically prepared by the following steps: (1) Preparing a mixed solution: fully mixing deionized water, glycerin, antioxidant, and preservative according to mass percentage to prepare a mixed solution; (2) Preparing mixed powder A: fully mixing the hydrophobic silane-modified silica with the mixed solution in a high-speed powder mixing homogenizer to obtain mixed powder A; (3) Preparation of mixed powder B: Add fluorphlogopite and colorant according to mass percentage into a high-speed powder mixing homogenizer and mix thoroughly to obtain mixed powder B; (4) Preparation of finished product: The mixed powder A and the mixed powder B are fully mixed to prepare the cosmetic powder.

[0011] The present invention also provides a method for using the high-fluidity and high-covering-power cosmetic powder, which comprises placing the cosmetic powder into an airbag-type normal-pressure bottle or a high-pressure spray bottle and spraying the cosmetic powder through a spray head.

[0012] The present invention has at least the following benefits: 1. The cosmetic powder of the present invention has high fluidity and high covering power. It can be applied directly by fingertips, cosmetic balls, or cosmetic cakes. It can also be loaded into a bladder-type normal pressure bottle or a high-pressure spray bottle, where the powder can be sprayed at specific points or over a large area, creating a thin layer of makeup. This convenient and novel method of use allows users to achieve the desired makeup effect with relatively convenient application. 2. Due to the high fluidity and spray-like application of the cosmetic powder of the present invention, different types of colorants can be used to adjust the color, and the cosmetic powder can achieve different cosmetic functions such as blush, eye shadow, and body whitening powder, making the formula highly versatile. 3. The preparation method of the cosmetic powder of the present invention is simple. The cosmetic powder of the present invention can be made by mixing the raw materials into powder in a common high-speed powder mixing homogenizer. No high-temperature heat treatment is required, thus avoiding the potential safety risks that may be caused by high-temperature treatment of dust products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the present invention being placed in a small sample bottle and rolling horizontally; Figure 2This is a schematic diagram of the present invention being contained in a container and sprayed out; Figure 3 This is a diagram showing the state of the thin layer of the present invention being applied to the skin after being directly sprayed in a dot-like manner; Figure 4 Schematic diagram of the measurement of the angle of repose in Example 3 of the present invention. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] Except as shown in the operating examples or otherwise indicated, all numbers used in the specification and claims to express the amount of ingredients, physicochemical properties, etc. are understood to be adjusted by the term "about" in all cases. For example, therefore, unless otherwise indicated, the numerical parameters listed in the above description and the appended claims are approximate values, and those skilled in the art will be able to use the teachings disclosed herein to seek to obtain the desired properties and appropriately change these approximate values. The use of numerical ranges expressed as endpoints includes all numbers within the range and any range within the range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.81, 4 and 5, etc.

[0017] Example

[0018] The following describes the preparation process and preferred preparation scheme of the high-flowability and high-covering cosmetic powder of the present invention through specific Examples 1-5: In terms of total mass percentage, the materials are proportioned according to the proportions in the ingredient list in Table 1, and the particle sizes of the granular solid raw materials fluorphlogopite, silylated silicon dioxide, dimethyldichlorosilylated silicon dioxide, polydimethylsiloxysilylated silicon dioxide, and titanium dioxide are specifically as shown in Table 1:

[0019] Table 1 Ingredients A high-flowability, high-coverage cosmetic powder is prepared by the following steps: (1) Preparing a mixed solution: fully mixing water, glycerin, antioxidant, and preservative according to mass percentage to prepare a mixed solution; (2) Preparation of mixed powder A: Various types of hydrophobic silane-modified silica were mixed with the mixed solution prepared in the corresponding example according to the proportions in a high-speed powder mixing homogenizer to obtain mixed powder A; (3) Preparation of mixed powder B: Add fluorphlogopite and various colorants according to mass percentage into a high-speed powder mixing homogenizer and mix thoroughly to obtain mixed powder B; (4) Preparation of finished product: The mixed powder A and the mixed powder B prepared in the corresponding example are fully mixed to prepare the cosmetic powder.

[0020] The various cosmetic powders prepared in Examples 1-5 above were subjected to performance tests using the following test examples: Test Case 1. In-bottle fluidity observation method The samples of Examples 1-5 were placed in small sample bottles with a diameter of 3 cm and a height of 7 cm. After sealing, the following two fluidity observations were performed. The corresponding observation results are as follows: ① Random swing observation: The bottle was shaken back and forth at an amplitude of 2.5 cm / s while observing the state of the cosmetic powders of Examples 1-5 in the bottle. The cosmetic powders of each example had a good single-wave-like overflow effect adhering to the wall. When the wavy cosmetic powders naturally fell back into the bottle, they did not stick to the wall, and the falling speed was fast and the falling surface was flat.

[0021] ② Slowly roll inside the bottle and observe: The bottles containing the cosmetic powders of Examples 1-5 were placed horizontally and shaken until the powders were approximately horizontal (since the powders were highly fluid, only 1-3 shakes were required). The bottles were then rolled at a speed of 0.5-1 cm / s in a direction away from the line of sight. The rolling surface between the powders on the bottle wall near the line of sight and the highest point of the fluidized powder pile was observed for each example. The rolling surface of each example exhibited the following visual effects: The central region of the rolling surface of Examples 1, 4, and 5 was smooth, with no noticeable cracks due to poor fluidity observed. In the area adhering to the bottle bottom wall, where the flow rate differed significantly from the central region, only minor flow cracks were observed in a few instances across multiple tests. In contrast, the central region of the rolling surface of Examples 2 and 3 was generally smooth, with minor flow cracks observed in a few instances across multiple tests. Furthermore, minor flow cracks were observed in the area adhering to the bottle bottom wall, where the flow rate differed significantly from the central region. The cosmetic powders of Examples 1-5 exhibited no wall clinging. In the small amount of cosmetic powder located between the bottle wall and the powder flow surface, layered rolling was clearly observed, with no clinging to the bottle wall.

[0022] 2. Repose Angle Measurement Method The fluidity of the cosmetic powders of Examples 1-5 was measured using a BOS-1007 Angle of Repose Meter. Using natural base samples, the angle of repose was measured according to the method described in sections 4.5.4-4.5.5 of GB / T 16913-2008, "Determination of Angle of Repose (Injection into a Defined Bottom Surface Method"): Enough powder to overflow the tray was poured from the funnel onto a horizontal tray. The acute angle between the inclined surface of the powder accumulation and the horizontal surface at the bottom was measured, representing the angle of repose of the target powder. Six measurements were performed on each of the cosmetic powders of Examples 1-5, yielding the following data:

[0023] The above samples were measured six times to determine the angle of repose A. i , and calculate the arithmetic mean angle of repose A cp , measured the angle of repose A of each group of embodiments i - Angle of repose A cp The absolute value of the above absolute value is the deviation value, which is no more than three times the mean square error σ of the corresponding embodiment, that is, the average value of the repose angle A of the corresponding embodiment. cp For the measurement results.

[0024] Based on the above tests, it was found that the products of Examples 1-3 all had good fluidity, and the fluidity of the products of Examples 4-5 was weaker than that of Examples 1-3, but also had relatively good fluidity; at the same time, in multiple measurements between the above samples, the numerical deviations after fluidity tests were small, and the fluidity performance was relatively stable.

[0025] 3. Local smear test Use the cosmetic powder of above-mentioned embodiment 1-5, load attached Figure 2 Using a spray bottle, hold the nozzle close to your hand and squeeze the air pocket to spray the powder onto your hand in a single spot approximately 0.5 cm in diameter. Use your fingers or a makeup ball as an applicator for a localized application test. Starting at the spray point, apply five single-direction applications to each spray point until the powder disperses to form a thin, relatively evenly colored layer. Use a ruler to measure the visually corresponding length. The values ​​are as follows:

[0026] From the smearing test data of Examples 1-5, it can be seen that the cosmetic powders of Examples 1-5 all have good smearing and spreading effects when applied by fingers. In particular, Example 3 uses raw materials with finer particles to prepare the cosmetic powder, and its smearing and spreading effect is relatively better than that of other examples; while Example 2 uses raw materials with larger particles to prepare the cosmetic powder, and its smearing and spreading effect is relatively weaker than that of other examples. However, in general, the examples have similar performance.

[0027]

[0028] From the smearing test data of Examples 1-5, it can be seen that the makeup powders of Examples 1-5 all have good smearing and spreading effects when applied by a makeup ball, and the smearing and spreading effects of the makeup powders of each example are similar, and their smearing and spreading effects are relatively inferior to those of the application method using fingers. This may be because the porous structure of the makeup ball absorbs some makeup powder particles, resulting in the smearing and spreading effect of the makeup ball application method being relatively inferior to that of the application method using fingers. However, at the same time, the smearing effect of the makeup powder of each example also achieves a higher usage consistency effect. When the user is more proficient in usage skills, he can use different types of makeup powder more accurately to apply makeup relatively accurately.

[0029] 4. Local smear color difference test Based on the results of the above smear test, an X-Rite MetaVue Model VS3200 colorimeter was used to measure the color difference of the cosmetic ball smear area. The measurement points were the starting point, middle point, and end point of the smear area. The measured values ​​were compared to obtain the corresponding test data (the values ​​were rounded to two decimal places), as shown below:

[0030] Measurements showed that after simply applying the cosmetic powders of Examples 1-5 to the hand several times using a coarser makeup ball, the color of the cosmetic powders of the same group of examples was relatively uniform at the starting point, middle point, and end point of the makeup application area, as observed by the naked eye. Furthermore, instrumental measurements showed that the total color difference values ​​of Examples 1-5 were all low, demonstrating that the products of Examples 1-5 had stronger application uniformity and enhanced ease of use. In particular, in the color difference data of Example 1, the differences between the starting point, middle point, and end point were extremely small and essentially negligible, demonstrating strong color consistency. Consumers were able to apply makeup stably during use, and the products had excellent ease of use.

[0031] 5. Range smear test and consistency test Based on the proportions of the components in the formulas of Examples 1-5, three sets of cosmetic powder were prepared for each purpose. Each set of cosmetic powder from Examples 1-5 was sprayed onto the surface of paper three times, and then smeared on the entire paper with a cosmetic ball until the color was uniform. A thin layer of makeup was formed. The color difference of the central area of ​​the thin layer of makeup was measured and grouped using an X-Rite MetaVue Model VS3200 colorimeter. The color of the unsprayed paper was also measured and compared to obtain the corresponding test data, as shown below:

[0032] After measurement, when the total color difference △E values ​​between the above-mentioned products in the same group are all between 0-1, the color difference is negligible and almost imperceptible to the naked eye. The cosmetic powder obtained by mass production of the above formula has strong consistency; at the same time, each group of products has strong hiding power. After being applied to paper, they can fully cover the basic original color of the paper and have high hiding power.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A cosmetic powder with high fluidity and high covering power, characterized in that The cosmetic powder is composed of a mixture of the following components in percentage by mass: 15%-20% glycerin, 12%-18% fluorphlogopite, 5%-8% hydrophobic silane-modified silica, 0.1%-0.5% antioxidant, 0.3%-0.8% preservative, 3%-5.75% colorant, and 50%-60% water; the particle size of the cosmetic powder does not exceed 500 mesh.

2. The cosmetic powder with high fluidity and high covering power according to claim 1, characterized in that: The hydrophobic silyl-modified silica is a mixture of one or more of silylated silica, dimethyldichlorosilylated silica, and polydimethylsiloxylated silica, and the silylated silica: dimethyldichlorosilylated silica: polydimethylsiloxylated silica are mixed in a ratio of (0-5): (0-5): (0-5).

3. The cosmetic powder with high fluidity and high covering power according to claim 1, characterized in that: The antioxidant is p-hydroxyacetophenone, and the preservative is a mixture of one or more of propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, octanediol, phenylethyl alcohol, phenoxyethanol, and octanol, and the p-hydroxyacetophenone and preservative are mixed in a ratio of (3-5):(3-5).

4. The cosmetic powder with high fluidity and high covering power according to claim 1, characterized in that: The colorant contains a red colorant.

5. The cosmetic powder with high fluidity and high covering power as claimed in claim 4, characterized in that: The colorant is titanium dioxide: red colorant mixed in a ratio of (10-20): (1-3).

6. The cosmetic powder with high fluidity and high covering power according to claim 5, characterized in that: The particle size of the fluorphlogopite, hydrophobic silane-modified silicon dioxide and titanium dioxide is 500-1000 mesh.

7. A method for preparing the high-flowability and high-covering cosmetic powder according to any one of claims 1 to 6, characterized in that: Specifically prepared by the following steps: (1) preparing a mixed solution: fully mixing deionized water, glycerin, antioxidant, and preservative according to mass percentage to prepare a mixed solution; (2) Preparing mixed powder A: The hydrophobic silane-modified silica and the mixed solution are fully mixed in a high-speed powder mixing homogenizer to prepare mixed powder A; (3) Preparation of mixed powder B: adding fluorphlogopite and colorant in a high-speed powder mixing homogenizer according to the mass percentage and mixing thoroughly to obtain mixed powder B; (4) Preparation of finished product: The mixed powder A and the mixed powder B are fully mixed to prepare the cosmetic powder.

8. A method for using the high-flowability and high-covering cosmetic powder according to any one of claims 1 to 6, characterized in that The cosmetic powder is placed in an air bag type normal pressure bottle or a high pressure spray bottle, and the cosmetic powder is sprayed out through a spray head.

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