Powder material for cosmetics and preparation method thereof

Abstract

The invention discloses a powder material for cosmetics and a preparation method thereof, and relates to the technical field of cosmetic raw materials, and the preparation method comprises the following steps: S1, compounding mica powder and pearl powder; s2, co-modifying a surface silicon source and a zinc source; s3, a silane coupling agent KH560, amino silicon oil and Meso-tetramethyl-meso-tetra (p-aminophenyl) calix [4] pyrrole are adopted for secondary modification. The powder material for cosmetics disclosed by the invention is good in hydrophobicity, excellent in skin feeling and sufficient in dispersity and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetic raw materials, and in particular to a powder material for cosmetics and a preparation method thereof. Background Art

[0002] Powder raw materials are widely used in cosmetics, such as skin care, foundation, sunscreen, etc., to cover blemishes, brighten, absorb, control oil, improve skin feel, etc. In order to achieve a transparent and natural whitening and brightening skin care effect, the selection and matching of powder raw materials are extremely important.

[0003] There are a wide variety of powder materials on the market, but they generally have poor spreading performance, unsatisfactory oil absorption capacity, water absorption while absorbing oil, inevitable skin drying, insufficient moisturizing, insufficient hydrophobicity, dryness, dullness and other technical defects. Mica powder, as a more common powder raw material, is delicate, smooth, high gloss, does not contain harmful substances, is safe and harmless to the skin, and has moisturizing, anti-wrinkle, whitening and other effects. It is widely used in the production of foundation, eye shadow and other cosmetics. However, the whiteness of single mica powder for cosmetics is not enough, and the dispersibility and stability need to be further improved. It is not moisturizing and hydrophobic, and is prone to dryness, dullness and other phenomena.

[0004] In order to solve the above technical problems, a Chinese invention patent with the authorization announcement number CN110283479B discloses an ultra-white composite sericite product, which includes sericite as a substrate or core and a titanium dioxide layer, a magnesium oxide layer and a silicon dioxide layer sequentially coated on the surface of the sericite. A method for preparing the ultra-white composite sericite product from low-whiteness gray sericite is also provided. However, its skin feel and hydrophobic properties still need to be further improved. Summary of the invention

[0005] In order to overcome the defects in the prior art, the present invention provides a powder material for cosmetics with good hydrophobicity, good skin feel, sufficient dispersibility and stability, and a preparation method thereof.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a method for preparing a powder material for cosmetics, comprising the following steps:

[0007] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0008] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 190-210° C. for 12-18 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 85-95° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0009] Step S3, secondary modification: adding the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-p-aminophenylcalix[4]pyrrole to an organic solvent, stirring at 70-80° C. for 3-5 hours, and after the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and storing are performed in sequence to obtain a powder material for cosmetics.

[0010] Preferably, the mass ratio of mica powder, pearl powder and alcohol solution in step S1 is (3-5):(0.5-0.8):(20-30).

[0011] Preferably, the mica powder in step S1 is cosmetic grade mica powder, selected from sericite, muscovite, phlogopite, synthetic fluorophlogopite or a mixture of more than one thereof; the particle size of the mica powder is 1-50 μm.

[0012] Preferably, the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 1-60 μm.

[0013] Preferably, the alcohol solvent in step S1 is at least one of ethanol, ethylene glycol and n-butanol.

[0014] Preferably, in step S2, the silicon source is tetraethyl orthosilicate; and the zinc source is zinc nitrate.

[0015] Preferably, the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is (24-36):(0.5-0.8):0.1:1.

[0016] Preferably, the calcination temperature in step S2 is 550° C.-850° C., and the calcination time is 3-5 h.

[0017] Preferably, the mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetra-aminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1: (0.1-0.2): (0.03-0.05): 0.04: (3-5).

[0018] Preferably, the preparation method of Meso-tetramethyl-meso-tetraaminophenylcalix[4]pyrrole in step S3 is described in: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenylcalix[4]pyrrole [J]. Chemical Reagents, 2002(6):344-345.

[0019] Preferably, the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, which is provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.

[0020] Preferably, the organic solvent in step S3 is N,N-dimethylformamide.

[0021] Another object of the present invention is to provide a powder material for cosmetics made by the above method for preparing a powder material for cosmetics.

[0022] The beneficial effects of adopting the above technical solution are:

[0023] (1) The method for preparing the powder material for cosmetics provided by the present invention has simple process, convenient construction, high preparation efficiency and qualified rate of finished products, low requirements on equipment and production line, safe preparation process, low energy consumption, and is suitable for continuous large-scale production.

[0024] (2) The powder material for cosmetics provided by the present invention is surface-modified and secondary-modified on the surface of mica powder in sequence, so that the formed powder has a more delicate and smooth skin feel, better compactability of the powder cake, no powder sticking, and easy dispersion; through the reasonable selection of raw material types and dosage ratios during the surface modification and secondary modification process, the powder material product has good hydrophobicity, good skin feel, and sufficient dispersibility and stability.

[0025] (3) The powder material for cosmetics provided by the present invention, through the reasonable selection of preparation process parameters, uniformly "grows" zinc-silicon alloy oxide balls on the surface of mica sheets. Gently apply it to enjoy the silky touch, delicate and rich layering, and feel the lubricated "dynamic skin feel" without reducing the overall drop performance of the formula, and has extremely rich ductility.

[0026] (4) The powder material for cosmetics provided by the present invention simultaneously introduces silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-p-aminophenyl cup [4] pyrrole structure during the secondary modification process. The silane coupling agent KH560 containing epoxy groups can undergo epoxy ring-opening reaction with the amino silicone oil and Meso-tetramethyl-meso-tetra-p-aminophenyl cup [4] pyrrole containing amino groups, so that they are connected together in the form of chemical bonds, which effectively improves the stability; they cooperate with each other and work together to further improve the hydrophobicity, skin feel and dispersibility of the powder material product. DETAILED DESCRIPTION

[0027] In order to make the technical solution of the present invention better understood by the technical personnel in the field, and to make the above-mentioned features, purposes and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the embodiments. The embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] Example 1

[0029] A method for preparing a powder material for cosmetics comprises the following steps:

[0030] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0031] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 190° C. for 12 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 85° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0032] Step S3, secondary modification: the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-aminophenyl cup [4] pyrrole are added to an organic solvent and stirred at 70°C for 3 hours. After the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and storing are performed in sequence to obtain a powder material for cosmetics.

[0033] The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is 3:0.5:20; the mica powder in step S1 is cosmetic grade mica powder selected from sericite; the mica powder has a particle size of 1 μm; the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 1 μm; the alcohol solvent in step S1 is ethanol.

[0034] The silicon source in step S2 is tetraethyl orthosilicate; the zinc source is zinc nitrate; the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is 24:0.5:0.1:1; the calcination temperature in step S2 is 550°C and the calcination time is 3h.

[0035] The mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1:0.1:0.03:0.04:3; the preparation method of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole in step S3, see: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole [J]. Chemical Reagents, 2002 (6): 344-345; the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.; the organic solvent in step S3 is N,N-dimethylformamide.

[0036] A powder material for cosmetics made by using the above method for preparing a powder material for cosmetics.

[0037] Example 2

[0038] A method for preparing a powder material for cosmetics comprises the following steps:

[0039] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0040] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 195° C. for 14 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 87° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0041] Step S3, secondary modification: the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-aminophenyl cup [4] pyrrole are added to an organic solvent and stirred at 73°C for 3.5 hours. After the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and warehousing are performed in sequence to obtain a powder material for cosmetics.

[0042] The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is 3.5:0.6:23; the mica powder in step S1 is cosmetic grade mica powder selected from muscovite; the mica powder has a particle size of 10 μm; the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 6 μm; the alcohol solvent in step S1 is ethylene glycol.

[0043] The silicon source in step S2 is tetraethyl orthosilicate; the zinc source is zinc nitrate; the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is 27:0.6:0.1:1; the calcination temperature in step S2 is 650°C and the calcination time is 3.5h; the mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole and organic solvent in step S3 is 1: 0.13:0.035:0.04:3.5; the preparation method of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole in step S3, see: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole [J]. Chemical Reagents, 2002 (6): 344-345; the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.; the organic solvent in step S3 is N, N-dimethylformamide.

[0044] A powder material for cosmetics made by using the above method for preparing a powder material for cosmetics.

[0045] Example 3

[0046] A method for preparing a powder material for cosmetics comprises the following steps:

[0047] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0048] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 200° C. for 15 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 90° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0049] Step S3, secondary modification: the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-aminophenylcalix[4]pyrrole are added to an organic solvent and stirred at 75° C. for 4 hours. After the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and storing are performed in sequence to obtain a powder material for cosmetics.

[0050] The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is 4:0.65:25; the mica powder in step S1 is cosmetic grade mica powder selected from phlogopite; the mica powder has a particle size of 15 μm; the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 10 μm; the alcohol solvent in step S1 is n-butanol.

[0051] The silicon source in step S2 is tetraethyl orthosilicate; the zinc source is zinc nitrate; the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is 30:0.65:0.1:1; the calcination temperature in step S2 is 700°C and the calcination time is 4h.

[0052] The mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1:0.15:0.04:0.04:4; the preparation method of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole in step S3, see: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole [J]. Chemical Reagents, 2002 (6): 344-345; the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.; the organic solvent in step S3 is N,N-dimethylformamide.

[0053] A powder material for cosmetics made by using the above method for preparing a powder material for cosmetics.

[0054] Example 4

[0055] A method for preparing a powder material for cosmetics comprises the following steps:

[0056] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0057] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 205° C. for 17 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 93° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0058] Step S3, secondary modification: the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-aminophenyl cup [4] pyrrole are added to an organic solvent and stirred at 78°C for 4.5 hours. After the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and warehousing are performed in sequence to obtain a powder material for cosmetics.

[0059] The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is 4.5:0.75:28; the mica powder in step S1 is cosmetic grade mica powder selected from artificial synthetic fluorphlogopite; the mica powder has a particle size of 15 μm; the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 12 μm; the alcohol solvent in step S1 is ethanol.

[0060] The silicon source in step S2 is tetraethyl orthosilicate; the zinc source is zinc nitrate; the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is 33:0.75:0.1:1; the calcination temperature in step S2 is 830°C and the calcination time is 4.5h.

[0061] The mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1:0.18:0.045:0.04:4.5; the preparation method of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole in step S3 is as follows: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole [J]. Chemical Reagents, 2002 (6): 344-345; the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.; the organic solvent in step S3 is N,N-dimethylformamide.

[0062] A powder material for cosmetics made by using the above method for preparing a powder material for cosmetics.

[0063] Example 5

[0064] A method for preparing a powder material for cosmetics comprises the following steps:

[0065] Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension;

[0066] Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 210° C. for 18 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 95° C. to constant weight, and then calcining to obtain a surface-modified composite powder;

[0067] Step S3, secondary modification: the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-aminophenylcalix[4]pyrrole are added to an organic solvent and stirred at 80° C. for 5 hours. After the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and storing are performed in sequence to obtain a powder material for cosmetics.

[0068] The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is 5:0.8:30; the mica powder in step S1 is cosmetic grade mica powder selected from sericite; the mica powder has a particle size of 10 μm; the pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 10 μm; the alcohol solvent in step S1 is n-butanol; the silicon source in step S2 is tetraethyl orthosilicate; the zinc source is zinc nitrate; the mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is 36:0.8:0.1:1; the roasting temperature in step S2 is 850°C and the time is 5 hours.

[0069] The mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1:0.2:0.05:0.04:5; the preparation method of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole in step S3, see: Guo Yong, Shao Shijun, He Lijun, et al. Synthesis and Characterization of Meso-tetramethyl-meso-tetraaminophenyl cup [4] pyrrole [J]. Chemical Reagents, 2002 (6): 344-345; the amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266, provided by Guangzhou Zhonghaojing Polymer Materials Co., Ltd.; the organic solvent in step S3 is N,N-dimethylformamide.

[0070] A powder material for cosmetics made by using the above method for preparing a powder material for cosmetics.

[0071] Comparative Example 1

[0072] A powder material for cosmetics, which is substantially the same as Example 1, except that Meso-tetramethyl-meso-tetra-p-aminophenylcalix[4]pyrrole and pearl powder are not added.

[0073] Comparative Example 2

[0074] A powder material for cosmetics, which is basically the same as Example 1, except that no zinc source and amino silicone oil are added.

[0075] The performance tests were performed on the powder material samples for cosmetics described in Examples 1-5 and Comparative Examples 1-2. The test results are shown in Table 1. The test method is as follows:

[0076] (1) Hydrophobicity test: 5 g of powder material was placed in a deep groove with a length and width of 1 cm, flattened and compacted, and the contact angle was measured using an SDC-200 video optical contact angle meter. The larger the contact angle, the stronger the hydrophobicity of the contact surface.

[0077] (2) Bonding test: The powder material is dry-pressed into a 5 mm × 100 mm × 200 mm embryo under a pressure of 680 MPa, and then a drop test is carried out. The test platform is a square template with a thickness of 1.5 cm and a width of 30 cm. The embryo is dropped horizontally from a high place, and the maximum drop height at which the embryo is damaged is recorded; the larger the maximum drop height value, the better the bonding.

[0078] (3) Evaluation of dispersion stability: A liquid paraffin solution containing 0.5% (mass percentage) of the sample is placed in a test tube and the dispersion stability of the sample is observed. If the sample settles to the bottom of the test tube within 30 minutes and the upper layer of the solution is completely clear, the dispersion stability is unqualified; if the upper layer of the solution is still milky white after 1 hour, the dispersion stability is good.

[0079] (4) Skin feel evaluation: 140 volunteers aged 25-35 were selected and randomly divided into 7 groups, each with 20 volunteers. The 7 groups of volunteers used the products of Examples 1-5 and Comparative Examples 1-2 respectively for 3 months, with each person using the products once a day on average. A satisfaction test was conducted, where the criteria for satisfaction with the use effect were that the foundation had good smoothness and spreadability when applied and no irritation to the skin; it felt comfortable, breathable and natural after use, and no dry lines; it effectively kept the makeup from coming off, and had a whitening effect after a period of use. Satisfaction = number of satisfied people / total number of people × 100%.

[0080] Table 1

[0081]

[0082]

[0083] As can be seen from Table 1, the cosmetic powder material disclosed in the embodiment of the present invention has better hydrophobicity, binding property, dispersion stability and skin feel than the comparative example; the combined use of meso-tetramethyl-meso-tetra-p-aminophenylcalix[4]pyrrole, pearl powder, zinc source and amino silicone oil is beneficial to improving the above properties.

[0084] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preparing a powder material for cosmetics, characterized in that: The steps include: Step S1, compounding mica powder and pearl powder: mixing mica powder and pearl powder, dispersing them in an alcohol solution, and stirring them evenly to obtain a composite powder suspension; Step S2, surface modification: adding silicon source and zinc source to the composite powder suspension prepared in step S1, stirring evenly, slowly adding sodium acetate, continuing to stir evenly to obtain a mixture, transferring the mixture to a polytetrafluoroethylene-lined hydrothermal reactor, reacting at 190-210° C. for 12-18 hours; cooling to room temperature, repeatedly washing with anhydrous ethanol, drying in a vacuum drying oven at 85-95° C. to constant weight, and then calcining to obtain a surface-modified composite powder; Step S3, secondary modification: adding the surface-modified composite powder prepared in step S2, silane coupling agent KH560, amino silicone oil and Meso-tetramethyl-meso-tetra-p-aminophenylcalix[4]pyrrole to an organic solvent, stirring at 70-80° C. for 3-5 hours, and after the reaction is completed, filtering, washing, drying, sterilizing, breaking up and packaging, and storing are performed in sequence to obtain a powder material for cosmetics.

2. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The mass ratio of mica powder, pearl powder and alcohol solution in step S1 is (3-5):(0.5-0.8):(20-30).

3. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The mica powder in step S1 is cosmetic grade mica powder, selected from sericite, muscovite, phlogopite, artificial synthetic fluorophlogopite or a mixture of more than one thereof; the particle size of the mica powder is 1-50 μm.

4. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The pearl powder in step S1 is cosmetic grade freshwater pearl powder with a particle size of 1-60 μm.

5. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The alcohol solvent in step S1 is at least one of ethanol, ethylene glycol and n-butanol.

6. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: In step S2, the silicon source is tetraethyl orthosilicate; and the zinc source is zinc nitrate.

7. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The mass ratio of the composite powder suspension, silicon source, zinc source and sodium acetate in step S2 is (24-36):(0.5-0.8):0.1:1; the calcination temperature in step S2 is 550°C-850°C, and the calcination time is 3-5h.

8. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The mass ratio of the surface-modified composite powder, silane coupling agent KH560, amino silicone oil, Meso-tetramethyl-meso-tetra-p-aminophenyl cup [4] pyrrole, and organic solvent in step S3 is 1: (0.1-0.2): (0.03-0.05): 0.04: (3-5).

9. The method for preparing a powder material for cosmetics according to claim 1, characterized in that: The amino silicone oil in step S3 is bis-aminopropyl polydimethylsiloxane SKYCORE SR266; the organic solvent in step S3 is N,N-dimethylformamide.

10. A powder material for cosmetics made by the method for preparing a powder material for cosmetics according to any one of claims 1 to 9.

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