Talc-free and soft-focus makeup composition, process for the preparation and use

Abstract

This invention, entitled "A Talc-Free, Long-Lasting, Soft-Focusing Composition, Preparation Method, and Application," belongs to the field of cosmetic technology. The technical problem to be solved is that pressed powder has poor compaction, is not shock-resistant, has poor oil control and staying power, resulting in a poor makeup finish after application. Furthermore, foundations containing talc pose certain safety risks. The talc-free, long-lasting, soft-focus composition provided by this invention, through a specific ratio of synthetic fluorophlogopite, boron nitride, and magnesium myristate, achieves properties similar to talc and can be used as a talc substitute. Moreover, through the synergistic effect of various flake and spherical powders, esters, and moisturizing ingredients, it achieves a perfect balance of long-lasting makeup, skin-friendly soft-focus finish, and green, safe, and low-irritation properties.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to a talc-free composition that provides long-lasting, soft-focus makeup, its preparation method, and its application. Background Technology

[0002] Pressed powder, a common solid makeup product, is widely used for setting makeup, touching up skin tone, and concealing blemishes. As consumers' demands for makeup product quality continue to rise, their requirements for pressed powder are becoming increasingly diversified. They not only require basic coverage and an even skin tone, but also seek comprehensive performance such as safety, long-lasting wear, lightweight application, and a natural soft-focus effect. Therefore, the formulation and manufacturing process of pressed powder are becoming increasingly crucial. Talc, with its advantages of low price and stable properties, has always been widely used in cosmetics. For pressed powder products, talc is almost an indispensable ingredient to improve its shock resistance, holding an irreplaceable position. However, talc is a mineral that is naturally associated with serpentine rocks containing asbestos. It cannot be completely removed during mining and processing, thus potentially leaving residual carcinogenic asbestos in talc powder. Therefore, talc is increasingly being rejected by consumers. However, current technologies that use other raw materials to replace talc have not achieved good shock resistance or satisfactory makeup effects.

[0003] Therefore, many manufacturers have begun to research how to replace talc with other ingredients that have better performance and higher safety, while ensuring or improving the oil control and makeup effect of pressed powder. However, with existing technology, products made by replacing talc with other raw materials cannot achieve good impact resistance and a good makeup effect.

[0004] Relevant patent documents retrieved:

[0005] The document, published in China (CN120284749A) on July 11, 2025, discloses a method for preparing a setting and brightening powder compact. The method involves first mixing synthetic fluorophlogopite, silica, polymethylsilsesquioxane, boron nitride, bismuth oxychloride, zinc stearate, aluminum octenyl succinate, mica, alumina, hydrolyzed sodium hyaluronate, and pigment in a homogenizer; then adding polydimethylsiloxane and octyl... Dodecyl stearyl oxystearate, isoamyl laurate, diisostearyl malate, phenoxyethanol, and octyl glycol are mixed evenly and heated to 40±5℃. The mixture is then poured into the spray gun of a homogenizer and stirred while spraying oil to mix evenly. After pulverizing, the mixture is further pulverized by air jet milling. The powder is then sieved and pressed into a mold plate to obtain a powder compact. This compact is then placed in a packaging powder box to obtain a setting and brightening powder compact, which has a setting and brightening effect while reducing powder fallout.

[0006] This document, published in China (CN117224422A) on December 15, 2023, discloses an eco-friendly moisturizing blush and its preparation method. The moisturizing blush comprises the following components: 30-40% mica, 10-20% synthetic fluorophlogopite, 10-20% aluminum octenyl succinate starch, 1-5% phenyl polytrimethylsiloxane, 1-5% zinc oxide, 1-5% vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosspolymer, and 1-5% polydimethylsiloxane. The formula contains 0.1-1% sodium hyaluronate, 1-5% pigment, 0.1-1% niacinamide, 1-10% magnesium stearate, 0.01-0.5% phenoxyethanol, 1-5% triethoxyoctylsilane, 0.01-0.5% ethylhexylglycerin, 0.1-1% hydroxyapatite, 1-5% hydroxybutyric acid / hydroxyphthalic acid copolymer, 0.1-30% isododecane, 1-5% boron nitride, and 1-5% barium sulfate. This formula effectively addresses issues such as difficult degradation, environmental unfriendliness, dryness during makeup application, and harm to the user's health.

[0007] The prior art represented by the aforementioned documents has at least the following unresolved technical problems or defects: 1. CN120284749A describes a mixture that is treated with only one airflow pulverization (0.6-1.0MPa). Although this can reduce powder flying, the large difference in particle size between silica (oil absorption 120-180mL / 100g) and bismuth oxychloride (particle size 10±3μm) may lead to uneven powder dispersion, abrupt brightening effect in some areas, and affect the naturalness of the makeup.

[0008] 2. CN117224422A contains multiple functional ingredients such as hydroxybutyric acid / hydroxyphthalic acid copolymer, sodium hyaluronate, and niacinamide. The amount of hydroxybutyric acid / hydroxyphthalic acid copolymer added is 1%-5%. The high proportion of biopolymer may have compatibility issues with siloxane ingredients (such as polydimethylsiloxane). Long-term storage may lead to powder clumping and a thicker makeup effect.

[0009] In solving the above problems or overcoming the above defects, the present invention encountered the following difficulties and obstacles: Dozens of solutions were used and verified through dozens of experiments. In verifying the alternative to talc, various proportions of different component powders were tested. Among powders such as mica, sericite, synthetic fluorophlogopite, boron nitride, bismuth oxychloride, kaolin, zinc oxide, stearic acid, zinc stearate, and magnesium myristate, synthetic fluorophlogopite, boron nitride, and magnesium myristate were selected for a combination and compounding to solve the powder clumping problem and achieve a soft, natural matte finish. Summary of the Invention

[0010] The purpose of this invention is to provide: A talc-free composition, preparation method, and application of a long-lasting, soft-focus makeup product, and related technologies, to solve technical problems such as poor compaction of pressed powder, lack of shock resistance, poor oil control and makeup-lasting effect, poor makeup effect after application, and certain safety risks associated with foundations containing talc, or combinations thereof.

[0011] Terminology Explanation: Unless otherwise defined, all technical terms in this document have the same meanings as commonly understood by one of ordinary skill in the art to which the subject matter of the claims pertains. Unless otherwise stated, all patents, patent inventions, and publications cited in this document are incorporated herein by reference in their entirety. If multiple definitions exist for terms in this document, the definitions in this chapter shall prevail.

[0012] It should be understood that the above brief description and the following detailed description are exemplary and for illustrative purposes only, and do not limit the subject matter of the invention in any way. In this invention, the singular is used in conjunction with the plural unless otherwise specifically stated. It should also be noted that, unless otherwise stated, the use of “or” or “or” means “and / or”. Furthermore, the use of the term “comprising” and other forms such as “including,” “containing,” and “contains” are not limiting.

[0013] The definition of the standard terminology can be found in the reference "Cosmetic Formulation Science and Technology" (Chemical Industry Press, Zhang Wanping, 1st edition, Beijing, April 2020).

[0014] Unless otherwise stated, conventional methods within the scope of the art should be used, such as the calculation of haze and total transmittance by the ASTM D1003 test standard, and the calculation of the coefficient of dynamic friction by the ISO 22719 test standard.

[0015] Unless specifically defined herein, the use of all commercially available products herein employs standard techniques. For example, it may be carried out using the manufacturer's instructions for use with the kit, or in accordance with methods known in the art or the description of this invention. The techniques and methods described herein can generally be implemented according to conventional methods well known in the art, based on the descriptions in the various summary and more specific documents cited and discussed in this specification.

[0016] The terms “optional / arbitrary” or “optionally / arbitrarily” mean that the event or situation described below may or may not occur, including both the occurrence and non-occurrence of the event or situation.

[0017] The term "air jet milling" as used in this article refers to a process that uses a high-speed airflow (usually compressed air) to accelerate material particles, causing violent collisions, impacts, and shearing between particles or between particles and the inner wall of the equipment, thereby pulverizing the material into fine and uniform powder. Specifically, in this article, the mixed material is fed into an air jet mill, and by setting specific pressures and the number of pulverization cycles, the powder particle size is made smaller and the dispersion is more uniform, meeting the requirements for subsequent pressing and molding.

[0018] The term "drop resistance" used in this article refers to the ability of a material, article, or composition to maintain its structural integrity, performance stability, and functional effectiveness after being subjected to free drop or controlled drop tests at a specified height, for a specified number of times, and under specified environmental conditions. Its core evaluation indicators include no damage, no cracking, and no performance degradation.

[0019] The term "friction coefficient" used in this article refers to the ratio of the frictional force between two contacting surfaces to the normal pressure acting on one of the surfaces. It is a dimensionless physical quantity that characterizes the frictional properties between two contacting surfaces. It is divided into the static friction coefficient (at startup) and the dynamic friction coefficient (when sliding relative to each other). Its value is related to factors such as the material, roughness, temperature, humidity and contact pressure of the contacting surfaces.

[0020] The term "makeup staying power" used in this article refers to the ability of cosmetics (especially facial makeup products such as foundation, concealer, and loose powder) to maintain the integrity, evenness, and adhesion of makeup under specified environmental conditions (such as temperature and humidity) and within a specified time after being applied to the skin. Core evaluation indicators include not fading, not patching, not caking, not oxidizing and discoloring, and not migrating to skin texture or clothing.

[0021] The term "soft focus effect" used in this article refers to the optical effect of softening the contrast of the boundaries of blemishes such as fine lines, pores, freckles, and acne scars on the skin surface by diffusing and scattering incident light after cosmetic powders (such as silica, talc, polymethyl methacrylate, etc.) or compositions are applied to the skin surface. This makes the skin appear delicate, smooth, and hazy with a matte texture, thereby achieving the effect of visually beautifying the skin.

[0022] The term "stirring" as used in this article refers to the operation of mixing multiple substances evenly by means of machinery or manual agitation. Specifically, it refers to the process of creating flow in a container with the help of external forces (such as rotating blades, stirring rods, airflow, etc.) to achieve uniform mixing of solids, liquids, or gases.

[0023] As used in this article, the term “selected from” means: one or more elements from the groups listed below, selected independently, and may include combinations of two or more elements.

[0024] In a first aspect, the present invention provides: a talc-free composition with long-lasting, soft-focus finish, comprising a powder phase component, an oil phase component, and a preservative; wherein the powder phase component, by weight percentage, comprises the following components: 35-45% synthetic fluorophlogopite, 7-10% polydimethylsiloxane and triethoxyoctylsilane-treated silica, 3-6% polymethylsilsesquioxane, 1-5% titanium dioxide, 1-5% boron nitride, 1-5% magnesium myristate, 1-5% vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer, 1-3% magnesium stearate, and 0.1-2% pigment; The oil phase component, by weight percentage, includes the following components: 1-5% polydimethylsiloxane, 1-3% pentaerythritol tetraisostearate, 1-3% diisostearate malate, 1-3% squalane, and 0.1-1% bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester.

[0025] Preferably, the powder phase component, by weight percentage, comprises the following components: 35-43% synthetic fluorophlogopite, 7-10% silica treated with polydimethylsiloxane and triethoxyoctylsilane, 3-5% polymethylsilsesquioxane, 1-3% titanium dioxide, 2-4% boron nitride, 2-4.5% magnesium myristate, 2-5% vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer, 1-3% magnesium stearate, and 0.5-2% colorant; The oil phase component, by weight percentage, includes the following components: 2-5% polydimethylsiloxane, 1-3% pentaerythritol tetraisostearate, 1-3% diisostearate malate, 1-3% squalane, and 0.3-0.8% bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester.

[0026] Preferably, the synthetic fluorophlogopite is selected from any value or range between 35% and 45% by weight, specifically from: 35%, 38%, 40%, 42%, 43%, 45% or a range between two of them.

[0027] More preferably, the fluorophlogopite synthesized by treating triethoxyoctylsilane and stearic acid is selected from any value or range between 35% and 43% by weight.

[0028] More preferably, the fluorophlogopite synthesized by treating triethoxyoctylsilane and stearic acid is selected from any value or range between 40% and 43% by weight.

[0029] More preferably, the fluorophlogopite synthesized by treating triethoxyoctylsilane and stearic acid comprises 40% by weight.

[0030] Preferably, the polydimethylsiloxane and triethoxyoctylsilane treated silica are selected from any value or range between 7 and 10% by weight, specifically from 7%, 8%, 9%, 10% or a range between the two.

[0031] More preferably, the polydimethylsiloxane and triethoxyoctylsilane treated silica are selected from any value or range between 8 and 10% by weight percentage.

[0032] More preferably, the silica treated with polydimethylsiloxane and triethoxyoctylsilane is 9% by weight.

[0033] Preferably, the polymethylsilsesquioxane is selected from any value or range between 3% and 6% by weight, specifically from: 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6% or a range between two of them.

[0034] More preferably, the polymethylsilsesquioxane is selected from any value or range between 3% and 5% by weight percentage.

[0035] More preferably, the polymethylsilsesquioxane contains 4% by weight.

[0036] Preferably, the titanium dioxide is selected from any value or range between 1% and 5% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between the two.

[0037] More preferably, the titanium dioxide is selected from any value or range between 1.5% and 3% by weight.

[0038] More preferably, the titanium dioxide is selected from any value or range between 2-3% by weight percentage.

[0039] More preferably, the titanium dioxide content is 3% by weight.

[0040] Preferably, the boron nitride is selected from any value or range between 1% and 5% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between the two.

[0041] More preferably, the boron nitride is selected from any value or range between 2% and 5% by weight percentage.

[0042] More preferably, the boron nitride is selected from any value or range between 2-3% by weight percentage.

[0043] More preferably, the boron nitride content is 3% by weight.

[0044] Preferably, the magnesium myristate is selected from any value or range between 1% and 5% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between the two.

[0045] More preferably, the magnesium myristate is selected from any value or range between 2 and 4.5% by weight.

[0046] More preferably, the magnesium myristate is selected from any value or range between 4 and 4.5% by weight.

[0047] More preferably, the magnesium myristate content is 4% by weight.

[0048] Preferably, the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer is selected from any value or range between 1% and 5% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between the two.

[0049] More preferably, the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer is selected from any value or range between 2 and 5% by weight percentage.

[0050] More preferably, the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer is selected from any value or range between 3 and 5% by weight percentage.

[0051] More preferably, the vinyl polydimethylsiloxane / polymethylsiloxane sesquioxane crosslinked polymer has a content of 3% by weight.

[0052] Preferably, the magnesium stearate is selected from any value or range between 1% and 3% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3% or a range between the two.

[0053] More preferably, the magnesium stearate is selected from any value or range between 1% and 2% by weight.

[0054] More preferably, the magnesium stearate content is 1% by weight.

[0055] Preferably, the pigment is selected from any value or range between 0.1% and 2% by weight, specifically from: 0.1%, 0.5%, 0.8%, 1%, 1.3%, 1.5%, 1.75%, 2% or a range between the two.

[0056] More preferably, the pigment is selected from any value or range between 0.5% and 2% by weight.

[0057] More preferably, the pigment is selected from any value or range between 1% and 2% by weight percentage.

[0058] More preferably, the pigment content is 1.3% by weight.

[0059] Preferably, the polydimethylsiloxane is selected from any value or range between 1% and 5% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between two of them.

[0060] More preferably, the polydimethylsiloxane is selected from any value or range between 2% and 5% by weight percentage.

[0061] More preferably, the polydimethylsiloxane is selected from any value or range between 3-5% by weight percentage.

[0062] More preferably, the polydimethylsiloxane contains 3% by weight.

[0063] Preferably, the pentaerythritol tetraisostearate is selected from any value or range between 1% and 3% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3% or a range between two of them.

[0064] More preferably, the pentaerythritol tetraisostearate is selected from any value or range between 2 and 3% by weight percentage.

[0065] More preferably, the pentaerythritol tetraisostearate content is 2% by weight.

[0066] Preferably, the diisostearyl malate is selected from any value or range between 1% and 3% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3% or a range between the two.

[0067] More preferably, the diisostearyl malate content is 1% by weight.

[0068] Preferably, the squalane is selected from any value or range between 1% and 3% by weight, specifically from: 1%, 1.5%, 2%, 2.5%, 3% or a range between the two.

[0069] More preferably, the squalane is selected from any value or range between 1 and 2% by weight.

[0070] More preferably, the squalane content is 2% by weight.

[0071] Preferably, the bis-behenol / isostearyl / phytosterol di-linoleyl alcohol di-linoleic acid ester is selected from any value or range between 0.1% and 1% by weight, specifically from: 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1% or a range between two of these.

[0072] More preferably, the bis-behenol / isostearyl / phytosterol di-linoleyl alcohol di-linoleic acid ester is selected from any value or range between 0.3% and 0.8% by weight percentage.

[0073] More preferably, the bis-behenol / isostearyl / phytosterol dimeric linoleic acid ester is 0.5% by weight.

[0074] Preferably, in the composition, the powder phase component further includes mica treated with polydimethylsiloxane, and the oil phase component further includes a preservative component.

[0075] Preferably, the preservative component is a mixture of caprylyl glycol and ethylhexylglycerin (caprylyl glycol (and) ethylhexylglycerin).

[0076] Preferably, the mass ratio of caprylyl glycol to ethylhexylglycerin is 7:3.

[0077] Preferably, the mixture of caprylyl glycol and ethylhexylglycerin is selected from any value or range between 0.5% and 1% by weight, specifically from: 0.5%, 0.7%, 0.75%, 0.8%, 0.9%, 1% or a range between two of them.

[0078] More preferably, the mixture of caprylyl glycol and ethylhexylglycerin is 1% by weight.

[0079] Preferably, in the composition, polydimethylsiloxane-treated mica is added to 100% by weight.

[0080] Preferably, the synthetic fluorophlogopite is synthesized by treating triethoxyoctylsilane and stearic acid with fluorophlogopite and / or by treating triethoxyoctylsilane with fluorophlogopite.

[0081] Preferably, the color powder is selected from one or more of the following: color powder treated with triethoxyoctylsilane and untreated color powder.

[0082] Preferably, the composition further includes polydimethylsiloxane-treated mica up to 100% by weight.

[0083] Preferably, the particle size of the fluorophlogopite synthesized by treatment with triethoxyoctylsilane and stearic acid is selected from any value or range between 3 and 10 μm, specifically from: 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm or a range between the two.

[0084] More preferably, the particle size of the fluorophlogopite synthesized by treating triethoxyoctylsilane and stearic acid is 6±1 μm.

[0085] Preferably, the particle size of the silica treated with polydimethylsiloxane and triethoxyoctylsilane is selected from any value or range between 2 and 15 μm, specifically from: 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm or a range between the two.

[0086] More preferably, the silica treated with polydimethylsiloxane and triethoxyoctylsilane has a particle size of 5±3 μm.

[0087] Preferably, the oil absorption capacity of the silica treated with polydimethylsiloxane and triethoxyoctylsilane is selected from any value or range between 0.9 and 1.1 mL / g.

[0088] More preferably, the oil absorption capacity of the silica treated with polydimethylsiloxane and triethoxyoctylsilane is selected from any value or range between 0.9 and 1.1 mL / g, specifically from 0.9 mL / g, 1.0 mL / g, 1.1 mL / g, or a range between the two.

[0089] More preferably, the oil absorption capacity of the silica treated with polydimethylsiloxane and triethoxyoctylsilane is 1.0 mL / g.

[0090] Preferably, the particle size of the polydimethylsiloxane-treated mica is selected from 7-20 μm, specifically from: 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm or a range between the two.

[0091] More preferably, the particle size of the polydimethylsiloxane-treated mica is 9±2μm.

[0092] Preferably, the boron nitride has a particle size of 10±2μm.

[0093] Preferably, the mass ratio of the synthetic fluorophlogopite, boron nitride, and magnesium myristate is selected from any value or range between 35-43:2-4:3.5-4.5, specifically from: 35:2:3.5, 35:4:4, 40:2.5:4.5, 40:3:4, 43:2:4, 43:3:4.5, 43:4:4.5, or a range between the two.

[0094] More preferably, the mass ratio of the synthetic fluorophlogopite, boron nitride, and magnesium myristate is selected from any value or range between 35-43:2-4:4-4.5.

[0095] More preferably, the mass ratio of the synthetic fluorophlogopite, boron nitride, and magnesium myristate is 40:3:4.

[0096] Preferably, the mass ratio of polymethylsilsesquioxane, polydimethylsiloxane, vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, pentaerythritol tetraisostearate, and diisostearyl malate is selected from any value or range between 3-5:2-5:2-5:2-3:1-3, specifically from: 3:2:2:2:1, 4:2:2:2, 4:3:3:2:1, 5:2:2:2:3, 5:3:2:3:1, 5:4:5:3:3, 5:5:5:3:3, or a range between the two.

[0097] More preferably, the mass ratio of the polymethylsilsesquioxane, polydimethylsiloxane, vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, pentaerythritol tetraisostearate and diisostearate malate is selected from any value or range between 4-5:2-4:2-4:2-3:1-3.

[0098] More preferably, the mass ratio of polymethylsilsesquioxane, polydimethylsiloxane, vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, pentaerythritol tetraisostearate and diisostearate malate is 4:3:3:2:1.

[0099] Based on further solutions to the technical problems of the present invention, or simultaneous solutions to multiple technical problems, the preferred solution in the technical solution provided in the first aspect of the present invention includes: The first preferred solution is a talc-free composition that provides long-lasting, soft-focus makeup. This solution addresses the technical issues of "poor compaction and lack of shock resistance," and further solves the problems of "poor oil control and makeup longevity, resulting in a poor makeup finish."

[0100] The second preferred solution is a talc-free composition that provides long-lasting, soft-focus makeup. This solution addresses the technical problems of "poor compaction, lack of shock resistance, poor oil control and makeup-holding effect, and poor makeup finish" and further resolves the technical issue of "certain safety risks".

[0101] Secondly, the present invention provides a method for preparing the above-mentioned composition, comprising the following steps: S1. Powder preparation: Mix the powder components to obtain the powder. S2. Preparation of oil phase: Mix the oil phase components and heat to 40±5℃ to mix evenly to obtain the oil phase; S3. After mixing the powder phase and the oil phase, crush, stir, sieve, and press to obtain the final product.

[0102] Preferably, step S1 specifically involves: putting the powder components into a high-speed mixing homogenizer for mixing.

[0103] Preferably, the stirring speed in step S1 is selected from any value or range between 2500-3000 rpm, specifically from: 2500 rpm, 2600 rpm, 2700 rpm, 2800 rpm, 2900 rpm, 3000 rpm or a range between the two.

[0104] More preferably, the stirring speed in step S1 is selected from any value or range between 2500-2900 rpm.

[0105] More preferably, the stirring speed in step S1 is selected from any value or range between 2700-2900 rpm.

[0106] More preferably, the stirring speed in step S1 is 2800 rpm.

[0107] Preferably, the stirring frequency in step S1 is selected from any value or range between 1 and 5 minutes / 2 times, specifically from: 1 minute / 2 times, 2 minutes / 2 times, 3 minutes / 2 times, 4 minutes / 2 times, 5 minutes / 2 times, or a range between the two.

[0108] More preferably, the stirring frequency in step S1 is selected from any value or range between 2-3 minutes / 2 times.

[0109] More preferably, the stirring frequency in step S1 is 2 minutes / 2 times.

[0110] Preferably, the heating temperature in step S2 is selected from any value or range between 35-45℃, specifically from: 35℃, 36℃, 37℃, 38℃, 39℃, 40℃, 41℃, 42℃, 43℃, 44℃, 45℃ or a range between the two.

[0111] Preferably, the stirring speed in step S3 is selected from any value or range between 2500-3000 rpm, specifically from: 2500 rpm, 2600 rpm, 2700 rpm, 2800 rpm, 2900 rpm, 3000 rpm or a range between the two.

[0112] More preferably, the stirring speed in step S3 is selected from any value or range between 2600-2800 rpm.

[0113] More preferably, the stirring speed in step S3 is selected from any value or range between 2700-2800 rpm.

[0114] More preferably, the stirring speed in step S3 is 2800 rpm.

[0115] Preferably, the stirring frequency in step S3 is selected from any value or range between 1 and 5 minutes / 2 times, specifically from: 1 minute / 2 times, 2 minutes / 2 times, 3 minutes / 2 times, 4 minutes / 2 times, 5 minutes / 2 times, or a range between the two.

[0116] More preferably, the stirring frequency in step S3 is selected from any value or range between 2-3 minutes / 2 times.

[0117] More preferably, the stirring frequency in step S3 is 2 minutes / 2 times.

[0118] Preferably, the specific operation of mixing in step S3 is as follows: the oil phase is put into the oil spraying tank of the high-speed mixing homogenizer, and the oil is sprayed for 2 minutes. During the oil spraying, the oil phase and the powder phase are mixed at low speed. After the oil spraying is completed, the stirring speed is adjusted to 2800 rpm, 2 minutes / 2 times.

[0119] Preferably, the crushing pressure in step S3 is selected from any value or range between 0.4-1.0 MPa, specifically from: 0.4 MPa, 0.5 MPa, 0.6 MPa, 0.7 MPa, 0.8 MPa, 0.9 MPa, 1.0 MPa or a range between the two.

[0120] More preferably, the crushing pressure in step S3 is selected from any value or range between 0.4 and 0.8 MPa.

[0121] More preferably, the crushing pressure in step S3 is 0.6 MPa.

[0122] The specific operation of pulverization in step S3 is as follows: put the mixture into a disc-type air jet mill for air jet pulverization, and pulverize it 3 times.

[0123] Preferably, the sieving operation in step S3 is as follows: the powder is sieved through a 100-120 mesh sieve using a powder sieving machine.

[0124] Preferably, the pressing pressure in step S3 is selected from any value or range between 25-35Kg, specifically from: 25Kg, 26Kg, 27Kg, 28Kg, 29Kg, 30Kg, 31Kg, 32Kg, 33Kg, 34Kg, 35Kg or a range between the two.

[0125] More preferably, the pressing pressure described in step S3 is selected from any value or range between 25-30 kg.

[0126] More preferably, the pressing pressure in step S3 is 30 kg.

[0127] Preferably, the holding time for pressing in step S3 is selected from any value or range between 1.4 and 2 seconds, specifically from: 1.4S, 1.5S, 16S, 1.7S, 1.8S, 1.9S, 2S or a range between the two.

[0128] More preferably, the holding time for pressing in step S3 is 2 seconds.

[0129] Preferably, the pressing in step S3 is performed 1-2 times.

[0130] More preferably, the pressing in step S3 is performed twice.

[0131] Thirdly, the present invention provides the use of the above-described composition or the composition prepared by the above-described preparation method in the preparation of cosmetics.

[0132] Preferably, the cosmetic is a toner, lotion, serum, face cream, face mask, foundation, powder, cushion, sunscreen, body lotion, conditioner, or hair mask.

[0133] Fourthly, the present invention provides: a talc-free powder compact with long-lasting, soft-focus finish, characterized in that it comprises the above-described composition and excipients.

[0134] Preferably, the excipients are selected from one or more of the following: moisturizers, skin conditioning agents, thickeners, emulsifiers, film-forming agents, ultraviolet absorbers, antioxidants, preservatives, pH adjusters, solvents, penetration enhancers, and lubricants.

[0135] The beneficial effects of this invention are as follows: The present invention has at least the following beneficial effects: 1. This invention provides a talc-free composition with long-lasting soft-focus effect. In the formulation of the composition, the synergistic effect of various flake powders and spherical powders, esters and moisturizing ingredients is added, which not only improves the skin-adherence of the overall formula, but also enhances the longevity of the makeup effect. According to experimental tests, this invention improves the drop resistance of the product from 50cm in the existing technology to over 75cm.

[0136] 2. This invention enhances the soft-focus effect of the powder compact by adding magnesium myristate, boron nitride, and flake-shaped synthetic fluorophlogopite with a particle size of 6±1μm, while also improving the powder compact's shock resistance. According to experimental tests, this invention improves the makeup-holding effect of the product from 8 hours in the existing technology to more than 10 hours.

[0137] 3. The manufacturing process of this product incorporates an airflow pulverization process. After airflow pulverization, the powder particles are smaller and more uniform, making it easier to press into powder compacts to meet product requirements. After airflow pulverization, the flake and spherical raw materials are more evenly dispersed. When pressed into a solid composition, it not only provides a long-lasting, soft-focus effect but also significantly reduces powder fallout. Attached Figure Description

[0138] Figure 1 The drop test results are for the powder cakes prepared in Examples 1-6 and Comparative Examples 1-7.

[0139] Figure 2 The results of the soft-focus effect test of the powder prepared in Examples 1-6 and Comparative Examples 1-7 are shown.

[0140] Figure 3 The makeup effect test results of the powder compact prepared in Example 3.

[0141] Figure 4 The makeup effect test results of the powder compact prepared in Comparative Example 3. Detailed Implementation

[0142] The following non-limiting embodiments are intended to enable those skilled in the art to gain a more comprehensive understanding of the present invention, but do not limit the invention in any way. The following content is merely an exemplary description of the scope of protection claimed by the present invention, and those skilled in the art can make various changes and modifications to the present invention based on the disclosed content, and such changes should also fall within the scope of protection claimed by the present invention.

[0143] The present invention will be further described below by way of specific embodiments. Unless otherwise specified, all instruments, devices, equipment, reagents, products, etc., used in the embodiments of the present invention are obtained through conventional commercial means.

[0144] Table 1. Reagents and their manufacturers and models

[0145] Preparation of talc-free, long-lasting, soft-focus powder compacts (Examples 1-6) The composition of the components, by weight percentage (%), is shown in Table 2 below: Table 2 Formulation of the Composition

[0146] The preparation methods of Examples 1-2 include the following steps: S1. Powder preparation: Triethoxyoctylsilane and stearic acid are used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, polymethylsilsesquioxane, boron nitride, magnesium myristate, titanium dioxide, vinyl polydimethylsiloxane / polymethylsilsesquioxane cross-linked polymer, magnesium stearate, triethoxyoctylsilane-treated pigment and polydimethylsiloxane-treated mica. These are then put into a high-speed homogenizer and mixed at 2800 rpm for 2 minutes twice to obtain the powder. S2. Preparation of oil phase: Mix polydimethylsiloxane, pentaerythritol tetraisostearate, diisostearate malate, squalane, bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester, caprylyl glycol and ethylhexylglycerin, heat to 40±5℃ and mix evenly to obtain the oil phase; S3. Add the oil phase to the oil spraying tank of the high-speed mixing homogenizer and spray for 2 minutes. During the spraying, mix the oil phase and powder phase at low speed. After the spraying is finished, adjust the stirring speed to 2800 rpm, 2 minutes / 2 times. After mixing, put it into a disc-type air jet mill for pulverization, pulverize 3 times, and the air jet milling pressure is 0.4 MPa. After pulverization, put it into the high-speed mixing homogenizer for mixing and sieving. Then, sieve it through a 100-120 mesh sieve and press it into shape through a pressing machine. The pressing pressure is 25 kg, the holding time is 1.4 s, and the pressing is repeated 3 times to obtain the final product.

[0147] The preparation methods of Examples 3-4 include the following steps: S1. Powder preparation: Triethoxyoctylsilane and stearic acid are used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, polymethylsilsesquioxane, boron nitride, magnesium myristate, titanium dioxide, vinyl polydimethylsiloxane / polymethylsilsesquioxane cross-linked polymer, magnesium stearate, triethoxyoctylsilane-treated pigment and polydimethylsiloxane-treated mica. These are then put into a high-speed homogenizer and mixed at 2800 rpm for 2 minutes twice to obtain the powder. S2. Preparation of oil phase: Mix polydimethylsiloxane, pentaerythritol tetraisostearate, diisostearate malate, squalane, bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester, caprylyl glycol and ethylhexylglycerin, heat to 40±5℃ and mix evenly to obtain the oil phase; S3. Add the oil phase to the oil spraying tank of the high-speed mixing homogenizer and spray for 2 minutes. During the spraying, mix the oil phase and powder phase at low speed. After the spraying is finished, adjust the stirring speed to 2800 rpm, 2 minutes / 2 times. After mixing, put it into a disc-type airflow pulverizer for pulverization, pulverize 3 times, and the airflow pulverization pressure is 0.6 MPa. After pulverization, put it into the high-speed mixing homogenizer for mixing and sieving. Then, sieve it through a 100-120 mesh sieve and press it into shape through a pulverizer. The pressing pressure is 30 kg, the holding time is 2 seconds, and the pressing is done twice to obtain the final product.

[0148] The preparation methods of Examples 5 and 6 include the following steps: S1. Powder preparation: Triethoxyoctylsilane and stearic acid are used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, polymethylsilsesquioxane, boron nitride, magnesium myristate, titanium dioxide, vinyl polydimethylsiloxane / polymethylsilsesquioxane cross-linked polymer, magnesium stearate, triethoxyoctylsilane-treated pigment and polydimethylsiloxane-treated mica. These are then put into a high-speed homogenizer and mixed at 2800 rpm for 2 minutes twice to obtain the powder. S2. Preparation of oil phase: Mix polydimethylsiloxane, pentaerythritol tetraisostearate, diisostearate malate, squalane, bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester, caprylyl glycol and ethylhexylglycerin, heat to 40±5℃ and mix evenly to obtain the oil phase; S3. Add the oil phase to the oil spraying tank of the high-speed mixing homogenizer and spray for 2 minutes. During the spraying, mix the oil phase and powder phase at low speed. After the spraying is finished, adjust the stirring speed to 2800 rpm, 2 minutes / 2 times. After mixing, put it into a disc-type air jet mill for pulverization, pulverize 3 times, and the air jet milling pressure is 0.8 MPa. After pulverization, put it into the high-speed mixing homogenizer for mixing and sieving. Then, sieve it through a 100-120 mesh sieve and press it into shape through a powder press. The pressing pressure is 35 kg, the holding time is 1.4 s, and the pressing is repeated 3 times to obtain the final product.

[0149] Comparative Example 1 The weight fractions of the components in the composition are as follows: synthetic fluorophlogopite 46.82%, polydimethylsiloxane 7.17%, silica 9.94%, polymethylsilsesquioxane 5.06%, boron nitride 4.05%, bismuth oxychloride 4.05%, zinc stearate 4.13%, octyldodecyl stearyl oxystearate 1.95%, isoamyl laurate 1.06%, diisostearyl malate 1.06%, starch octenyl succinate aluminum 1.01%, mica 0.97%, phenoxyethanol 0.65%, octyl glycol 0.35%, alumina 0.10%, squalane 0.10%, hydrolyzed sodium hyaluronate 0.01%, and the balance of triethoxyoctylsilane-treated pigment.

[0150] The preparation process is as follows: (1) Take each raw material by weight fraction, and put the synthetic fluorophlogopite, silica, polymethylsilsesquioxane, boron nitride, bismuth oxychloride, zinc stearate, aluminum starch octenyl succinate, mica, alumina, hydrolyzed sodium hyaluronate, and triethoxyoctylsilane-treated color powder into a triaxial high-speed mixing homogenizer. Set the mixing speed to 2800±50 rpm and mix for 2 minutes / 2 times. (2) Mix polydimethylsiloxane, octyl dodecyl stearyl oxy stearate, isoamyl laurate, diisostearyl malate, phenoxyethanol, and octyl glycol evenly and heat to 45±5℃; then pour into the oil spraying tank of a triaxial high-speed mixer homogenizer, set the stirring speed to 2800±50 rpm, and spray oil for 2 minutes; after the oil spraying is completed, set the stirring speed to 2800±50 rpm, 2 minutes / 2 times, and stir to mix. (3) The material is fed into a pulverizer for pulverization at a speed of 6140 rpm; the pulverized material is then fed into a disc-type airflow pulverizer for airflow pulverization at a pressure of 1.0 MPa; the airflow pulverized material is then sieved through a vibrating screen with a 60-mesh sieve; the sieved material is placed into the required mold aluminum disc and pressed into shape by a powder press. During the pressing process, the first stage pressure is 20 kg and the holding time is 1.5 s; the second stage pressure is 25 kg and the holding time is 1.8 s; the third stage pressure is 30 kg and the holding time is 2 s; the powder cake is obtained by pressing; the powder cake is placed into the packaging powder box to obtain the powder cake.

[0151] Comparative Examples 2-7 The difference from Example 3 is that the content of each component in the composition (by weight percentage, %) is changed, as shown in Table 3: Table 3 Formulation of the Composition

[0152] The preparation method of Comparative Example 2 is the same as that of Example 1.

[0153] The difference between the preparation method of Comparative Example 3 and that of Example 1 lies in the change of the powder phase preparation method, specifically: S1. Powder preparation: Triethoxyoctylsilane and stearic acid are used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, boron nitride, magnesium myristate, titanium dioxide, magnesium stearate, triethoxyoctylsilane-treated pigment, and polydimethylsiloxane-treated mica. These are then put into a high-speed homogenizer and mixed at 2800 rpm for 2 minutes twice to obtain the powder. The remaining steps are the same as the preparation method in Example 1.

[0154] The difference between the preparation method of Comparative Example 4 and that of Example 1 is that polymethylsilsesquioxane is replaced with polymethyl methacrylate, specifically: S1. Powder preparation: Triethoxyoctylsilane and stearic acid were used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, polymethyl methacrylate, boron nitride, magnesium myristate, titanium dioxide, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, magnesium stearate, triethoxyoctylsilane-treated pigment and polydimethylsiloxane-treated mica. These were then put into a high-speed homogenizer and mixed at 2800 rpm for 2 minutes twice to obtain the powder. The remaining steps are the same as the preparation method in Example 1.

[0155] The difference between the preparation method of Comparative Example 5 and that of Example 1 is that magnesium myristate is replaced with synthetic wax, specifically: S1. Powder preparation: Triethoxyoctylsilane and stearic acid were used to synthesize fluorophlogopite, polydimethylsiloxane and triethoxyoctylsilane-treated silica, polymethyl methacrylate, boron nitride, synthetic wax, titanium dioxide, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, magnesium stearate, triethoxyoctylsilane-treated pigment and polydimethylsiloxane-treated mica were added to a high-speed homogenizer and mixed at 2800 rpm for 2 minutes / 2 times to obtain the powder. The remaining steps are the same as the preparation method in Example 1.

[0156] The difference between the preparation method of Comparative Example 6 and that of Example 1 is that pentaerythritol tetraisostearate is replaced with octyldodecyl stearyl ester, specifically: S2. Preparation of oil phase: Mix polydimethylsiloxane, octyldodecyl stearyloxy stearate, diisostearyl malate, squalane, bis-behenol / isostearyl / phytosterol di-linoleyl alcohol di-linoleyl ester, octyl glycol and ethylhexylglycerin, heat to 40±5℃ and mix evenly to obtain the oil phase; The remaining steps are the same as the preparation method in Example 1.

[0157] The preparation method of Comparative Example 7 is the same as that of Example 1.

[0158] Test Example 1: Drop Resistance Test 1. Experimental Methods Adjust the drop test platform, setting the flat surface to the 76cm mark. Place a round powder compact (60mm in diameter, 3-4mm thick) face up at the center of the test height. Perform the drop test: Press the test platform button to drop the powder compacts prepared in Examples 1-6 and Comparative Examples 1-7 onto the marble slab surface. Pick up the powder compacts after they have fallen onto the surface and check for cracks or breaks on the surface. If the powder compact is cracked or broken, stop the drop test for that powder compact; if the powder compact is normal, proceed with a second drop test.

[0159] 2. Experimental Results The powder compacts prepared in Examples 1-6 of this invention remained intact after two high-intensity drop tests; however, the powder compacts in Comparative Examples 2, 3, 4, 5, and 6 showed obvious damage after one drop test, Comparative Example 1 showed obvious damage after two drop tests, and Comparative Example 7 showed relatively high integrity after a drop test, but Comparative Example 7 showed obvious oil spots and clumping.

[0160] The drop resistance test results of the powder cakes prepared in Comparative Examples 1-7 are shown in Table 4.

[0161] Table 4 Drop Resistance Test Results

[0162] Note: "√" means the test passed, "×" means the test failed, and " / " means the powder compact failed the test in the first test and will not be included in the second test.

[0163] Test Example 2: Friction Coefficient Test 1. Experimental Methods Take 0.05g of each of the powder compacts from Examples 1-6 and Comparative Examples 1-7 and spread them evenly on the inner side of the forearm. Using a Cutometer® MPA580 skin friction coefficient meter, measure the kinetic friction coefficient of each sample on the skin of the inner forearm under a probe pressure of 0.5N and a sliding speed of 1mm / s. Kinetic friction coefficient (μk) = friction force (F) / normal force (N).

[0164] 2. Experimental Results As can be seen from Table 5, compared with the powder compacts prepared in Comparative Examples 1-7, the powder compacts prepared in Examples 1-6 of this invention have a lower coefficient of kinetic friction, a silky skin feel, smooth application, and a soft and delicate texture. They can effectively conceal pores, hide skin imperfections, and improve the texture of the makeup. The lower coefficient of kinetic friction further indicates that the powder compacts obtained in the examples are easy to spread and blend, reducing the risk of caking and clumping, and helping to improve the durability and evenness of the makeup effect.

[0165] Table 5 Results of kinetic friction coefficient

[0166] Test Example 3: Soft Focus Effect Test 1. Experimental Methods The total transmittance (Tt) and haze of the powder coating were measured using an integrating sphere haze meter according to the ASTM D1003 test standard. The higher the haze value, the stronger the powder's ability to scatter light and the better the soft-focus effect.

[0167] Take 4g of powder prepared in Examples 1-6 and Comparative Examples 1-7 and mix it with 6g of oil (wherein the oil is a mixture of 4g isododecane and 2g polyacrylate) to prepare a uniform coating sample, and coat it on a quartz glass plate (thickness controlled at 20±2μm); use a haze meter to test the total transmittance and haze of the sample. The higher the haze value, the more significant the atomization effect.

[0168] 2. Experimental Results The haze values ​​of the pressed powders prepared in Examples 1-6 were significantly higher than those prepared in Comparative Examples 1-7.

[0169] Table 6. Results of Total Transmittance and Haze Tests

[0170] Test Example 4: Makeup Lasting Effect Test 1. Experimental Methods Thirty participants aged 25-35 with healthy, undamaged skin were recruited. The powder compacts from Examples 1-6 and Comparative Examples 1-7 were used. The same powder puffs, techniques, and application amounts (approximately 0.05g) were applied to the entire face. Facial images were taken using Visia-CR before and 10 hours after product use, and the makeup effect was analyzed using software. Participants maintained their normal daily lives while wearing makeup throughout the testing process. Before taking photos, participants were required to sit quietly for 20 minutes in a test room with a constant temperature and humidity of 22±2℃ and 50±5% to calculate makeup retention. The software calculated the area of ​​makeup fading, patchiness, and skin tone evenness; the better the makeup retention, the higher the makeup integrity. The makeup retention effects of each example and comparative example are detailed in Table 7.

[0171] 2. Experimental Results As can be seen from Table 7, the powder compacts prepared in Examples 1-6 of this invention have significantly higher makeup integrity than those prepared in Comparative Examples 1-7. Excerpts of the test results for the powder compacts prepared in Example 3 and Comparative Example 3 are presented below. Figures 3-4 As can be seen, compared with the powder prepared in Comparative Example 3, the powder prepared in Example 3 of this invention still has a complete makeup look after 10 hours, without any makeup fading or patchiness, and the makeup effect is relatively even, with a significantly better makeup-holding effect.

[0172] Table 7. Results of Makeup Durability Test

[0173] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A talc-free composition that provides long-lasting, soft-focus makeup, characterized in that, It includes a powder phase component and an oil phase component; the powder phase component, by weight percentage, includes the following components: 35-45% synthetic fluorophlogopite, 7-10% polydimethylsiloxane and triethoxyoctylsilane-treated silica, 3-6% polymethylsilsesquioxane, 1-5% titanium dioxide, 1-5% boron nitride, 1-5% magnesium myristate, 1-5% vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, 1-3% magnesium stearate, and 0.1-2% colorant; The oil phase component, by weight percentage, includes the following components: 1-5% polydimethylsiloxane, 1-3% pentaerythritol tetraisostearate, 1-3% diisostearate malate, 1-3% squalane, and 0.1-1% bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester.

2. The composition according to claim 1, characterized in that, The powder components, by weight percentage, include the following components: 35-43% synthetic fluorophlogopite, 7-10% silica treated with polydimethylsiloxane and triethoxyoctylsilane, 3-5% polymethylsilsesquioxane, 1-3% titanium dioxide, 2-4% boron nitride, 2-4.5% magnesium myristate, 2-5% vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, 1-3% magnesium stearate, and 0.5-2% colorant; The oil phase component, by weight percentage, includes the following components: 2-5% polydimethylsiloxane, 1-3% pentaerythritol tetraisostearate, 1-3% diisostearate malate, 1-3% squalane, and 0.3-0.8% bis-behenol / isostearate / phytosterol di-linoleyl alcohol di-linoleyl ester.

3. The composition according to claim 1, characterized in that, In the composition, the powder phase component also needs to be treated with polydimethylsiloxane, and the oil phase component also needs to be treated with preservatives. The preservative component is a mixture of octyl glycol and ethylhexylglycerin, comprising, by weight percentage: 0.5-1% of the mixture of octyl glycol and ethylhexylglycerin; In the composition, polydimethylsiloxane-treated mica is added to 100% by weight.

4. The composition according to claim 1, characterized in that, The synthetic fluorophlogopite is selected from one or more of the following: fluorophlogopite synthesized by treatment with triethoxyoctylsilane and stearic acid, and fluorophlogopite synthesized by treatment with triethoxyoctylsilane. The pigment is selected from one or more of the following: pigment treated with triethoxyoctylsilane and untreated pigment.

5. The composition according to claim 1, characterized in that, The mass ratio of the synthesized fluorophlogopite, boron nitride, and magnesium myristate is 35-43:2-4:3.5-4.

5. Preferably, the mass ratio of the synthetic fluorophlogopite, boron nitride, and magnesium myristate is 35-43:2-4:4-4.

5.

6. The composition according to claim 1, characterized in that, The mass ratio of polymethylsilsesquioxane, polydimethylsiloxane, vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer, pentaerythritol tetraisostearate and diisostearyl malate is 3-5:2-5:2-5:2-3:1-3.

7. A method for preparing the composition according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Powder preparation: Mix the powder components to obtain the powder. S2. Preparation of oil phase: Stir and mix the oil phase components, heat to 40±5℃ and mix evenly to obtain the oil phase; S3. After mixing the powder phase and the oil phase, crush, stir, sieve, and press to obtain the final product.

8. The preparation method according to claim 7, characterized in that, The pressing pressure described in step S3 is 25-35 kg.

9. The use of the composition according to any one of claims 1-6 or the composition prepared by the preparation method according to any one of claims 7-8 in the preparation of cosmetics.

10. A talc-free powder compact that provides long-lasting, soft-focus makeup, characterized in that... It comprises the composition and excipients according to any one of claims 1-6.

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