Makeup fixing pressed powder and preparation process thereof

Abstract

The invention discloses makeup fixing pressed powder and a preparation process thereof, and relates to the related field of cosmetics. Through a multi-section filling agent system, a skin-friendly emollient and a thermal expansion type adhesive which are scientifically proportioned and a forming process of combining double pressing with heat treatment, the structural compactness, skin feeling smoothness and use durability of the pressed powder are remarkably improved, and the functions of oil control, clear skin attachment, moisturizing and the like are considered; compared with a traditional silicone oil system, polyhydroxy oil octyldodecanol is adopted, the effects of bonding, emulsifying and moisturizing are achieved, and the compatibility between powder and skin and between the powder and a water / alcohol system is enhanced; high-proportion spherical powder design: the skin feeling and the adhesive force are obviously optimized, the powder feeling is reduced, and the fitness is improved; the non-pure solvent drying process is controlled at 65 DEG C or above, magnesium aluminum silicate expansion reaction is promoted, the structural stability and forming strength of the pressed powder are improved, and the non-pure solvent drying process is different from a low-temperature drying process of traditional pressed powder.

Description

Technical Field

[0001] The present invention relates to the field of cosmetics, and in particular to a makeup setting powder and a preparation process thereof. Background Art

[0002] As consumers' requirements for the skin feel, long-lastingness, skin-friendliness and natural makeup effects of cosmetics products increase, the formula structure and process of pressed powder, as a basic foundation product, have gradually evolved from traditional single physical mixing to a complex system that integrates functional powder modification, directional structure construction and multi-step pressing and curing.

[0003] To improve the compactness and skin feel of pressed powders, existing technologies often optimize product performance by adding silicone or polymer additives or by incorporating complex molding processes such as wet pressing and hot pressing. However, in actual production, issues such as powder dispersion uniformity, wetness control, and pressing stability remain prominent. For example, uneven distribution of the powder and the wetting phase can easily lead to surface peeling, structural fragility, or blurred visual texture after pressing. Furthermore, improper moisture control can affect the effective expansion of magnesium aluminum silicate, weakening the pressed powder's structural strength. Summary of the Invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a makeup setting powder and a preparation process thereof.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a makeup setting powder, comprising a filler, an emollient, an adhesive, a colorant, an antiseptic and moisturizing system, a fragrance, a solvent phase and an efficacy agent;

[0006] Fillers include 35%-50% mica, lauroyl lysine, triethoxycaprylylsilane; 25%-40% polymethylsiloxane silsesquioxane crosspolymer, silica, methyl methacrylate crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, polymethyl methacrylate; 2%-6% boron nitride;

[0007] The emollient is 6%-10% octyldodecyl alcohol;

[0008] The binder is 0.2%-2% magnesium aluminum silicate;

[0009] The antiseptic and moisturizing system is 0.5%-1.2% phenoxyethanol and 1,2-hexanediol;

[0010] Fragrance is 0.01%-0.1% of fragrance;

[0011] The solvent phase is water and alcohol, with a volume ratio of 6:1;

[0012] The efficacy agent is 0.5%-3% of gem powder, plant extract and plant oil.

[0013] Preferably, the mica and silica are spherical powders.

[0014] A preparation process for a makeup setting powder cake comprises the following steps:

[0015] S1 Powder premixing: Weigh all dry powder ingredients, i.e. fillers, emollients, binders, preservatives, fragrances and functional agents, according to the formula ratio; use a powder mixer to mix for 3-5 minutes at high speed until evenly dispersed; control the fineness to 100-200 mesh and perform coarse sieving to remove impurities;

[0016] Prepare S2 solvent: Mix purified water and ethanol in a volume ratio of 6:1 at room temperature and stir until completely homogeneous.

[0017] S3 wet powder mixing and blending: spray the solvent phase evenly into the mixed powder using a vacuum spray mixer to form a wet powder; stirring time: 3-5 minutes, control the moisture content to about 35%-42%;

[0018] S4 sieving: re-screen the wet powder after moisture adjustment, and control the sieve to 20 or 30 mesh. Select the sieving step according to the texture. If it is a spotted texture, it needs to be sieved, but marble texture does not need to be sieved;

[0019] S5 First pressing: Use a powder mold to press the wet powder for the first time to form a preliminary shape; the pressure range is controlled at 8-15MPa, without a logo mold;

[0020] S6 First baking: Place the pre-pressed powder cake into a hot air oven at a temperature of 65-75°C for 20-40 minutes to remove most of the solvent and moisture. The moisture content must be controlled at 15%-20% and the temperature must not be lower than 65°C.

[0021] S7 Second Compression: The semi-dry powder cake is taken out of the mold and then compressed;

[0022] S8 Second baking: The oven temperature is controlled at 60-70℃ for about 30-60 minutes to completely dry the residual moisture in the powder cake; the moisture content is reduced to <3%;

[0023] S9 Cooling and polishing: After baking, the powder cake is naturally cooled to room temperature, and the surface is gently polished using a suede polishing device to remove the hard shell layer.

[0024] Beneficial effects of the present invention:

[0025] Through a scientifically formulated multi-stage filler system, skin-friendly emollients, heat-expandable adhesives, and a double-pressing and heat-treated molding process, the powder's structural density, skin-smoothing feel, and durability are significantly improved, while also providing oil control, clear skin adherence, and moisturizing properties.

[0026] Different from traditional silicone oil systems: the use of polyhydroxy oil octyldodecanol has bonding, emulsifying and moisturizing effects, enhancing the compatibility of powder with skin and water / alcohol systems; high-proportion spherical powder design: significantly optimizes skin feel and adhesion, reduces powdery feel, and improves fit; non-simple solvent drying process: controlled at above 65°C, promotes the expansion reaction of magnesium aluminum silicate, improves the structural stability and molding strength of the powder, which is different from the low-temperature drying process of traditional powder. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0028] The present invention provides a makeup setting powder cake, comprising:

[0029] Fillers include 35%-50% mica, lauroyl lysine, triethoxycaprylylsilane; 25%-40% vinyl dimethicone / methicone silsesquioxane crosspolymer, silica, methyl methacrylate crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, polymethyl methacrylate; mica and silica are spherical powders; 2%-6% boron nitride; the emollient is 6%-10% octyldodecanol; the binder is 0.2%-2% magnesium aluminum silicate; the colorant is 0-3%: CI 77007, CI 77492, CI 73360, CI 77491, CI 15850, CI 42090 can be adjusted according to the color number; the preservative and moisturizing system is 0.5%-1.2% phenoxyethanol and 1,2-hexanediol; the fragrance is 0.01%-0.1% essence; the solvent phase is water and alcohol, with a volume ratio of 6:1; the efficacy agent is 0.5%-3% gem powder, plant extract and plant oil, the gem powder is pearl powder, tourmaline, nephrite powder, ruby ​​powder and sapphire powder, and the plant extract is sea fennel callus culture filtrate and hydroxypropyl tetrahydropyrantriol.

[0030] The process steps are as follows:

[0031] Weigh all dry powder ingredients, i.e. fillers, emollients, binders, preservatives, fragrances and functional agents, according to the formula ratio; use a powder mixer to mix for 4 minutes at high speed until evenly dispersed; control the fineness to 150 mesh and perform coarse sieving to remove impurities if necessary;

[0032] Take purified water and ethanol, mix them in a volume ratio of 6:1, operate at room temperature and stir until completely homogeneous;

[0033] Evenly spray part of the solvent phase into the mixed powder using a vacuum spray mixer to form a wet powder; stir for 4 minutes to prevent over-wetting; control the moisture content to about 38% to facilitate molding without over-wetting;

[0034] The wet powder after humidity adjustment is re-screened with a 20-mesh screen. The purpose is to form particles of a certain size to form subsequent patterns. The screening step is selected according to the pattern. If it is a spotted pattern, it needs to be screened, but if it is a marble pattern, it does not need to be screened.

[0035] Use a powder compact mold to press the wet powder for the first time to form a preliminary shape; the pressure range is controlled at 11MPa, and the mold is not stamped with a logo;

[0036] Place the pre-pressed powder cake into a hot air oven at a temperature of 65-75°C. Bake for 30 minutes to remove most of the solvent and moisture. The moisture content should be controlled at 15%-20%, with the surface slightly damp and the interior hydrated. The temperature should not be lower than 65°C to ensure effective expansion of the magnesium aluminum silicate and enhance the internal structural bonding of the powder.

[0037] After the semi-dry powder cake is taken out of the mold, it is pressed again. This pressing is a key densification step, which enhances the overall structural density and reduces the chance of cracking during demoulding. The pressure should be slightly higher than the first pressing to ensure a tight edge.

[0038] The oven temperature is controlled at 65°C for about 45 minutes to completely dry the residual moisture in the powder cake, reducing the moisture content to <3%. The powder cake structure is stable and free of cracks.

[0039] After baking, the pressed powder is naturally cooled to room temperature to ensure that the internal stress is released; since the expansion of magnesium aluminum silicate during the baking process will form a slight "hard shell" on the surface of the pressed powder, affecting the touch and visual sense; use suede polishing equipment to gently polish the surface to remove the hard shell layer; ensure that the surface feels delicate and smooth, and the visual texture is clear and complete.

[0040] Example 1

[0041] Filler Part 1 (45%): Mica: 30%, Lauroyl Lysine: 10%, Triethoxycaprylylsilane: 5%;

[0042] Filler Part 2 (35%): Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer: 10%, Silica: 15%, Methyl Methacrylate Crosspolymer: 5%, HDI / Trimethylol Hexyllactone Crosspolymer: 3%, Polymethyl Methacrylate: 2%;

[0043] Filler part 3 (3%): boron nitride: 3%;

[0044] Emollient: Octyldodecanol: 8%;

[0045] Binder: magnesium aluminum silicate: 1%;

[0046] Colorant: CI 77492 + CI 77491 + CI 77007: 2%;

[0047] Antiseptic + moisturizing system: phenoxyethanol + 1,2-hexanediol: 1%;

[0048] Fragrance: Fragrance: 0.05%;

[0049] Solvent ratio: pure water: ethanol = 6:1 (volume ratio);

[0050] Efficacy agents: pearl powder: 1.5%, sea fennel callus culture filtrate: 1.25%.

[0051] Target features: suitable for oily skin, good oil control effect, long-lasting makeup, use: daily commuting / oily skin use, suitable for summer or oily environment.

[0052] Example 2

[0053] Filler part 1 (50%): Mica: 35%, Lauroyl Lysine: 10%, Triethoxycaprylylsilane: 5%;

[0054] Filler Part 2 (28%): Vinyl Dimethicone Crosspolymer: 10%, Silica: 8%, Methyl Methacrylate Crosspolymer: 5%, HDI / Trimethylol Hexyllactone Crosspolymer: 5%, Polymethyl Methacrylate: 5%;

[0055] Filler part 3 (5%): boron nitride: 5%;

[0056] Emollient: Octyldodecanol: 10%;

[0057] Binder: magnesium aluminum silicate: 1%;

[0058] Colorant: CI 77491 + CI 15850 (soft reddish brown tone): 2%;

[0059] Antiseptic + moisturizing system: phenoxyethanol + 1,2-hexanediol: 1.2%;

[0060] Fragrance: Fragrance: 0.1%;

[0061] Solvent ratio: pure water: ethanol = 6:1 (volume ratio);

[0062] Efficacy agent: Tourmaline powder: 1.5%, Hydroxypropyl tetrahydropyrantriol: 1.5%.

[0063] Target features: light and natural makeup with delicate luster, suitable for dry or normal skin; Usage: suitable for creating a light and translucent base makeup with strong luster.

[0064] Example 3

[0065] Filler Part 1 (40%): Mica: 20%, Lauroyl Lysine: 15%, Triethoxycaprylylsilane: 5%;

[0066] Filler Part 2 (40%): Polymethyl Methacrylate: 10%, HDI / Trimethylol Hexyllactone Crosspolymer: 8%, Silica: 10%, Vinyl Polysiloxane Crosspolymer: 12%;

[0067] Filler part 3 (6%): boron nitride: 6%;

[0068] Emollient: Octyldodecanol: 6%;

[0069] Binder: magnesium aluminum silicate: 2%;

[0070] Colorant: CI 77492 + CI 77491 + CI 73360 (concealer skin tone): 3%;

[0071] Antiseptic + moisturizing system: phenoxyethanol + 1,2-hexanediol: 1%;

[0072] Fragrance: Fragrance: 0.05%;

[0073] Solvent ratio: pure water: ethanol = 6:1 (volume ratio);

[0074] Efficacy agent: ruby ​​powder: 1.5%, sapphire powder: 0.5%, hydroxypropyl tetrahydropyrantriol: 0.5%.

[0075] Target features: High concealing power and pore-covering ability, making the makeup look more "soft-focus"; Uses: Suitable for people with obvious acne scars, pigmentation and stage makeup.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A makeup setting powder, characterized by: Includes fillers, emollients, binders, colorants, preservative and moisturizing systems, fragrances, solvent phases, and functional agents; Fillers include 35%-50% mica, lauroyl lysine, triethoxycaprylylsilane; 25%-40% polymethylsiloxane silsesquioxane crosspolymer, silica, methyl methacrylate crosspolymer, HDI / trimethylol hexyl lactone crosspolymer, polymethyl methacrylate; 2%-6% boron nitride; The emollient is 6%-10% octyldodecyl alcohol; The binder is 0.2%-2% magnesium aluminum silicate; The antiseptic and moisturizing system is 0.5%-1.2% phenoxyethanol and 1,2-hexanediol; Fragrance is 0.01%-0.1% of fragrance; The solvent phase is water and alcohol, with a volume ratio of 6:1; The efficacy agent is 0.5%-3% of gem powder, plant extract and plant oil.

2. The makeup setting powder according to claim 1, characterized in that: The mica and silica are spherical powders.

3. A process for preparing a setting powder, for preparing the setting powder according to claim 1, characterized in that: The specific preparation process is as follows: S1 Powder premixing: Weigh all dry powder ingredients, i.e. fillers, emollients, binders, preservatives, fragrances and functional agents, according to the formula ratio; use a powder mixer to mix for 3-5 minutes at high speed until evenly dispersed; control the fineness to 100-200 mesh and perform coarse sieving to remove impurities; Prepare S2 solvent: Mix purified water and ethanol in a volume ratio of 6:1 at room temperature and stir until completely homogeneous. S3 wet powder mixing and blending: spray the solvent phase evenly into the mixed powder using a vacuum spray mixer to form a wet powder; stirring time: 3-5 minutes, control the moisture content to about 35%-42%; S4 sieving: re-screen the wet powder after moisture adjustment, and control the sieve to 20 or 30 mesh. Select the sieving step according to the texture. If it is a spotted texture, it needs to be sieved, but marble texture does not need to be sieved; S5 First pressing: Use a powder mold to press the wet powder for the first time to form a preliminary shape; the pressure range is controlled at 8-15MPa, without a logo mold; S6 First baking: Place the pre-pressed powder cake into a hot air oven at a temperature of 65-75°C for 20-40 minutes to remove most of the solvent and moisture; the moisture content must be controlled at 15%-20%. The temperature is not less than 65℃; S7 Second Compression: The semi-dry powder cake is taken out of the mold and then compressed; S8 Second baking: The oven temperature is controlled at 60-70℃ for about 30-60 minutes to completely dry the residual moisture in the powder cake; the moisture content is reduced to <3%; S9 Cooling and polishing: After baking, the powder cake is naturally cooled to room temperature, and the surface is gently polished using a suede polishing device to remove the hard shell layer.