Method for preparing anti-short-time darkness base product, anti-short-time darkness product

Abstract

The invention belongs to the technical field of cosmetics, and particularly relates to a method for preparing an anti-short-time-darkening base product and the anti-short-time-darkening product. The invention provides an innovative method for preparing the anti-short-time darkness base product, the problem of short-time darkness caused by poor toner dispersion in the base product is effectively solved, and the product development efficiency and the product quality are remarkably improved. By optimizing the dispersibility of the toner in the oil phase, the base product presents a whiter and brighter color, and meanwhile, after the preparation method provided by the invention is applied, the product development period can be greatly shortened, the research and development cost is reduced, and the application prospect is wide. The method is of great significance in improving the market competitiveness of base makeup products and meeting the requirements of consumers for high-quality beauty makeup products.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and specifically relates to a base makeup product that resists short-term darkening and a preparation method thereof. Background Art

[0002] Base makeup usually includes liquid foundation, BB cream, concealer and other products. The core formula of the product usually combines a variety of oil ingredients with finely ground color powder raw materials, which can present a natural, lasting and bright makeup effect after use. However, dull makeup has always been one of the main problems that bother consumers. According to the length of time it occurs, dullness is usually divided into short-term dullness (usually occurs within 10 to 20 minutes after applying makeup) and long-term dullness (after applying makeup for more than 4 hours); the reasons for short-term dullness mainly include the following four aspects:

[0003] 1. Oil volatilization and penetration: Although the volatile oils in the base makeup formula can enhance the lightness and breathability in the initial stage of use, their rapid volatilization causes the surface gloss to decrease, which in turn causes dullness.

[0004] 2. Water evaporation: While the water-oil emulsion system gives base makeup products a moist feeling, the rapid evaporation of water will destroy the stability of the emulsion structure and affect the long-lasting gloss of the makeup. Although reducing the water content can alleviate this effect, it may sacrifice the product's moist feeling and cost-effectiveness.

[0005] 3. Skin texture becomes apparent: As the base makeup product spreads on the skin surface and the ingredients gradually evaporate and absorb, the film formed becomes thinner, making the skin texture more prominent and the light scattering effect enhanced, causing the makeup to look less smooth and dull.

[0006] 4. Uneven dispersion of color powder: Effective dispersion of color powder is the key to ensuring a uniform and delicate base makeup with saturated colors. However, due to various physical and chemical factors such as surface tension, polarity differences, steric hindrance effects, and system viscosity, it is often difficult for color powder to achieve an ideal dispersion state and it is easy to form agglomerates. This not only affects the uniformity of the immediate makeup effect, but also poses a challenge to the stability of product quality due to the color differences caused by the changes of agglomerates over time.

[0007] Patent document CN111135113B discloses a moisturizing and antioxidant composition, comprising 10-50% triglycerides, 10-50% vitamin E acetate and 10-50% fucoidan. After 8 hours of application, the skin can be obviously felt to be brightened, which is particularly suitable for use after staying up late; Patent document CN117462454A discloses a liquid foundation with a significant effect of improving dullness. The isododecane of the liquid foundation is completely volatilized after 6 hours, reducing the occurrence of dullness; however, the anti-dullness time of the above-mentioned product does not reflect the technical effect of short-term anti-dullness. Therefore, there is an urgent need for a base makeup product with a small change in color difference value in a short time after use and excellent anti-dullness effect, so as to meet consumers' demands for makeup effect not to become dull over time, and better control the quality of the production process. Summary of the invention

[0008] The first aspect of the present invention provides a method for preparing a base makeup product that resists short-term darkening, comprising:

[0009] S1, preparing mixed color powder for base makeup products;

[0010] S2, preparing the oil phase for base makeup products;

[0011] S3, mixing the mixed toner and the oil phase, and ultrasonically dispersing them to obtain a toner-oil phase mixed liquid;

[0012] S4, testing the color difference between the toner-oil phase mixture and the reference toner-oil phase mixture, and selecting the toner-oil phase mixture with the largest color difference;

[0013] S5. The toner-oil phase mixture with the largest color difference value is used as a raw material, and then emulsified evenly with the water phase to prepare a base makeup product that resists short-term darkening.

[0014] One of the reasons for short-term dullness is that the color powder is not dispersed well, resulting in agglomeration; and the dispersion of the color powder is affected by many factors such as surface tension, polarity, steric hindrance, viscosity, etc. There are many ingredients in base makeup products, and it is difficult to summarize a regular guiding method. At present, technical personnel in this field can only find a system with better dispersion through a large number of experiments, and the product development efficiency is extremely low. In addition, color is an important quality standard for base makeup products. Short-term dullness causes great trouble to product quality control. The agglomeration of color powder raw materials will also affect the color judgment of the product (different time, different color), which is not conducive to providing products with stable quality. Therefore, the short-term dullness problem caused by the agglomeration of color powder needs to be solved urgently. The inability to quickly make a judgment on the compatibility of color powder with other ingredients has become a restrictive factor affecting the speed of product development and the stability of quality.

[0015] Therefore, the present invention provides a method and strategy for preparing a base makeup product that resists short-term darkening, which not only reduces development costs but also improves product quality, and is of great significance to the research and development and production of base makeup products.

[0016] The preparation process of the base makeup formula includes: preparing the mixed color powder, dispersing the mixed color powder in the oil phase, and emulsifying the oil and water phases. If the anti-dullness of the final product is poor due to poor dispersion of the color powder, it is necessary to adjust the oil phase components one by one and repeat the entire preparation process continuously, resulting in extremely low efficiency.

[0017] The main color powders used in the base makeup are titanium dioxide and iron oxides. They usually need to be subjected to lipophilic surface treatment and then applied in the formula. According to different surface treatment agents, the surface treatment is divided into silicon treatment, amino acid treatment, fluorine treatment, etc. Color powders of different colors have consistent surface properties after the same surface treatment, and their dispersibility in oil is consistent. For example, color powders treated with amino acids have poor dispersion in silicone oil and good dispersion in non-silicone oil. For the same mixed color powder, the better its dispersibility in the oil, the whiter and brighter the color will be. This is because the content of titanium dioxide in the mixed color powder is usually as high as 85%-90%. Therefore, the dispersion of titanium dioxide plays a decisive role in the color of the dispersion liquid, and the better the dispersion of titanium dioxide, the whiter and brighter the color. Therefore, the dispersion situation of the color powder can be quickly judged by observing the color difference of the oil dispersion liquid, so as to screen out the best raw material combination and prepare a formula with anti-short-term dullness.

[0018] The present invention finds the color difference law of the mixed color powder dispersed in the oil phase, and quickly judges the dispersion situation of the color powder by testing its color difference. Screen the combination with good dispersion, and then carry out the emulsification of the oil and water phases, greatly improving the efficiency.

[0019] The second aspect of the present invention provides a method for preparing a base makeup product with anti-short-term dullness. The preparation raw materials include a color powder-oil phase mixed liquid and an aqueous phase; wherein the preparation raw materials of the color powder-oil phase mixed liquid include a mixed color powder and an oil phase; the preparation raw materials of the oil phase include an emulsifier, a stabilizer, silicone oil, modified silicone oil, ester oil, and alkane oil.

[0020] As an implementable example, the mass ratio of the emulsifier, stabilizer, silicone oil, modified silicone oil, ester oil, and hydrocarbon oil is (1-5):(0.1-1):(10-20):(1-8):(1-10):(0.1-3).

[0021] Further, the mass ratio of the emulsifier, stabilizer, silicone oil, modified silicone oil, ester oil, and hydrocarbon oil is 3.5:0.5:16:1.5:4.5:3.

[0022] As an implementable example, the emulsifier includes at least one of cetyl PEG / PPG-10 / 1 polydimethylsiloxane, sorbitan sesquioleate, PEG-10 polydimethylsiloxane, and PEG-9 dimethicone copolyol.

[0023] Further, the emulsifier includes cetyl PEG / PPG-10 / 1 dimethicone and PEG-9 dimethicone copolyol.

[0024] Further, the mass ratio of cetyl PEG / PPG-10 / 1 dimethicone to PEG-9 dimethicone copolyol is 6:1.

[0025] Cetyl PEG / PPG-10 / 1 dimethicone has emulsifying ability, which can avoid water-oil separation in base makeup. At the same time, it has good compatibility and can extend the release of active molecules, especially pigments. It can also condition the skin, making the skin smooth and soft without a sticky feeling. PEG-9 dimethicone copolyol also has excellent emulsifying and dispersing properties. The compound use of cetyl PEG / PPG-10 / 1 dimethicone and PEG-9 dimethicone copolyol can produce a synergistic effect, improve the emulsifying effect, and make the emulsifier system more stable after compounding, which helps to prevent the agglomeration and sedimentation of color powders in cosmetics, thereby improving the anti-dullness effect of the product. At the same time, after the two emulsifiers are compounded, the skin feel of the base makeup product can be further optimized, making the cosmetics more refreshing, easy to apply and absorb.

[0026] As an implementable case, the stabilizer includes lithium magnesium stearate montmorillonite.

[0027] Lithium magnesium stearate montmorillonite is a non-ionic organic clay with excellent suspension and thixotropy. Its own suspension stabilizing effect can adsorb on the surface of color powder particles to form a protective film, effectively preventing particle agglomeration, ensuring the uniform dispersion of color powders in the cosmetic system, and avoiding color difference and dullness. At the same time, its thixotropic adjustment effect makes the base makeup product system maintain structural strength at rest, maintaining the stable dispersion of color powders, and becoming easy to flow under external force, facilitating the uniform application of color powders on the skin surface, further enhancing the anti-dullness effect of the product.

[0028] As an implementable case, the silicone oil includes at least one of cyclopentasiloxane, dimethicone, KF-96A-6CS silicone oil, and trimethylsiloxysilicate.

[0029] Further, the silicone oil includes at least cyclopentasiloxane and dimethicone.

[0030] As an implementable case, the modified silicone oil includes phenyl trimethicone.

[0031] Further, the mass ratio of cyclopentasiloxane, dimethicone, and phenyl trimethicone is 13:2.5:1.5.

[0032] Cyclopentasiloxane and polydimethylsiloxane can form a film on the skin surface to prevent moisture loss and achieve a long-lasting moisturizing effect. At the same time, cyclopentasiloxane has a low surface tension, which helps the base makeup product to be better applied on the skin, reducing friction and irritation; the modified silicone phenyl trimethylsiloxane has good anti-greasiness and can increase the solubility of silicone oil and ester oil; since all three silicone oils have lubricity, after compounding, the lubricating effect of the product can be further enhanced, making the cosmetics easier to apply and improving the gloss of the product at the same time; it can also improve the anti-darkening effect of cosmetics with colored powder by improving the spreadability, gloss and stability of the base makeup product. Good lubricity and gloss can make the colored powder more evenly distributed on the skin surface, reducing the possibility of colored powder aggregation and darkening.

[0033] As an implementable case, the ester oil includes at least one of triglyceride caprylate / caprate, tridecyl trimellitate, diisostearyl malate, butanediol dicaprylate / dicaprate, and trimethylsiloxysilicate.

[0034] Further, the ester oil at least includes triglyceride caprylate / caprate, tridecyl trimellitate, diisostearyl malate, and trimethylsiloxysilicate.

[0035] As an implementable case, the hydrocarbon oil includes isododecane.

[0036] The water-oil system compounded with silicone oil, modified silicone oil, ester oil, alkane oil and water can act together through multiple aspects such as forming a protective film, enhancing the skin barrier, and adjusting the skin feel and synergistic effect of water, so that the skin can maintain a healthy, shiny and uniform state, thereby slowing down the occurrence of darkening phenomenon.

[0037] As an implementable case, the preparation raw materials of the mixed colored powder include the compound of CI 77891 / aluminum hydroxide / octyltriethoxysilane, CI 77492 octyltriethoxysilane, CI 77491 octyltriethoxysilane, and CI 77499 octyltriethoxysilane.

[0038] Further, the mass ratio of the compound of CI 77891 / aluminum hydroxide / octyltriethoxysilane, CI 77492 octyltriethoxysilane, CI 77491 octyltriethoxysilane, and CI 77499 octyltriethoxysilane is 90:7.8:1.6:0.6.

[0039] The color powder used in the base makeup product of the present invention is mainly titanium dioxide and iron oxide color powder, specifically a color powder CI77891 / aluminum hydroxide / triethoxycaprylylsilane compound, CI 77492 triethoxycaprylylsilane, CI 77491 triethoxycaprylysilane, CI 77499 triethoxycaprylysilane compound, which can be used in the product system and significantly improve its anti-short-term dullness effect after use.

[0040] As an implementable case, the raw materials for preparing the water phase include, by weight, 5-10 parts of moisturizer, 0.1-0.3 parts of chelating agent, 0.5-1 parts of preservative, 0.5-1 parts of antifreeze and 40-80 parts of water.

[0041] As an implementable example, the moisturizing agent includes 1,3-butylene glycol, 1,2-pentanediol and glycerol.

[0042] As an implementable case, the chelating agent includes one of EDTA-2Na, EDTA-4Na, disodium nitrilotriacetate, N-acylethylenediaminetriacetic acid, and NATRLQUEST E30.

[0043] As an implementable case, the preservative includes one or more of phenoxyethanol, ethylhexylglycerin, and a phenoxyethanol / ethylhexylglycerin mixture.

[0044] As an implementable case, the antifreeze includes sodium chloride and / or magnesium sulfate.

[0045] The second aspect of the present invention provides a method for preparing a base makeup product that resists short-term darkening, comprising:

[0046] Evenly mixing raw materials of mixed color powder to prepare mixed color powder;

[0047] Mixing oil phase raw materials to prepare an oil phase;

[0048] Mixing water phase raw materials to prepare a water phase;

[0049] The oil phase and the mixed color powder are mixed, stirred at 4000-5000 rpm for 10-15 minutes, and mixed evenly to obtain an oil-powder mixture, and then the oil-powder mixture is added to the water phase, and stirred at 4000-5000 rpm for 10-15 minutes to obtain the product.

[0050] Beneficial Effects

[0051] (1) The present invention adopts an innovative preparation method, mainly by quickly identifying the dispersion of toner, thereby adjusting the formula to solve the problem of short-term dullness caused by poor toner dispersion, and significantly improving the product development efficiency and product quality. Specifically, by testing the color difference between the toner-oil phase mixture and the reference toner-oil phase mixture, and relating it to the short-term dullness color difference of the formula, a pattern is found; thus, the dispersion degree can be quickly judged, and the optimal raw material combination can be identified. The present invention provides a screening method for anti-dull base makeup products, which not only avoids the high costs and time consumption brought about by repeatedly testing and adjusting the oil phase components in the traditional method, but also ensures the color stability and anti-dullness performance of the base makeup products. By optimizing the dispersion of toner in the oil phase, the present invention enables the base makeup products to present a more fair and bright color. At the same time, the application of this preparation method greatly shortens the product development cycle and reduces the R & D cost, which is of great significance for enhancing the market competitiveness of base makeup products and meeting the needs of consumers for high-quality beauty products.

[0052] (2) The present invention forms a protective film on the skin by restricting the oil phase (including emulsifier, stabilizer, silicone oil, modified silicone oil, ester oil, alkane oil) and water phase components, as well as the mixed toner with specific surface treatment, so as to reduce the damage of the external environment to the skin, thereby significantly improving the anti-short-term dullness effect of the product.

[0053] (3) The present invention selects the compound use of specific emulsifiers cetyl PEG / PPG-10 / 1 polydimethylsiloxane and PEG-9 dimethicone copolyol, as well as the lubricating effect of silicone oil and modified silicone oil, to make the base makeup product more refreshing, easy to apply and absorb, and optimize the skin feel of the product.

[0054] (4) Due to the addition of the stabilizer distearyldimonium lithium montmorillonite in the system of the present invention, the agglomeration and sedimentation of toner are effectively prevented, ensuring the uniform dispersion of toner in the cosmetic system and avoiding the appearance of color difference and dullness. At the same time, the synergistic effect of the emulsifier and silicone oil further enhances the stability of the product.

[0055] (5) The addition of the moisturizing agents 1,3-butanediol, 1,2-pentanediol and glycerin in the water phase of the present invention provides a long-lasting moisturizing effect for the skin, keeping the skin in a moist state. At the same time, the moisturizing effect of silicone oil and ester oil also enhances the skin barrier function, reducing the damage of external harmful substances to the skin.

[0056] (6) The components selected in the present invention are all safe and environmentally friendly raw materials, meeting the safety requirements of cosmetics. At the same time, the addition of preservatives effectively prevents the growth of microorganisms and extends the shelf life of the product. Specific embodiments

[0057] Experimental group 1

[0058] This experimental group provides a preparation method for an anti-short-term dulling base makeup product, and the specific steps are as follows:

[0059] S1. Mix the raw materials of the mixed color powder evenly to prepare the mixed color powder for the base makeup product;

[0060] S2. Mix the oil-phase raw materials to obtain the oil phase for the base makeup product;

[0061] S3. Mix the oil phase and the mixed color powder, stir at 4000 rpm for 10 min, and emulsify evenly to obtain the color powder-oil phase mixture;

[0062] S4. Test the color difference between the color powder-oil phase mixture and the reference color powder-oil phase mixture, and select the color powder-oil phase mixture with the largest color difference value;

[0063] S5. Mix the water-phase raw materials to obtain the water phase for the base makeup product;

[0064] S6. Use the color powder-oil phase mixture with the largest color difference value as the raw material, add it to the water phase, and stir at 4000 rpm for 10 min to obtain the product.

[0065] Experimental Group Two

[0066] This experimental group provides 10 formulations for anti-short-term dulling base makeup products, including Examples 1-5 and Comparative Examples 1-5 of anti-short-term dulling base makeup products. The raw material components and mass fractions are shown in Table 1, and the specific information of the components is shown in Table 2.

[0067] Table 1

[0068]

[0069]

[0070]

[0071]

[0072] Table 2

[0073]

[0074]

[0075] Performance Evaluation I. Steps for testing the color difference of the dispersion liquid: Pour the anti-short-term dulling base makeup products corresponding to Examples 1-5 and Comparative Examples 1-5 into a petri dish, and place the petri dish in the test area;

[0076] II. Steps for the color difference pigment of the formulation for dulling:

[0077] 1) Use a syringe to take 0.1 g of the anti-short-term dulling base makeup product;

[0078] 2) Use the syringe to evenly place the base makeup product sample on a 50 mm × 50 mm PMMA test plate;

[0079] 3) Use a finger cot to apply it evenly;

[0080] 4) Place the PMMA plate in the test area and test for 0 min (standard sample);

[0081] 5) Place it at 21 ± 1 °C for 30 min, relative humidity: 50 ± 10%;

[0082] 6) Place the PMMA plate in the test area and test the color difference values at 30 min and 0 min. See Table 3 for the test results.

[0083] Table 3

[0084]

[0085] It can be seen from the experimental results in Table 3 that Example 5 with the formulation components of 3 parts of cetyl PEG / PPG-10 / 1 polydimethylsiloxane, 0.5 part of PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, 13 parts of cyclopentasiloxane, 3 parts of isododecane, 1.5 parts of caprylic / capric triglyceride, 1.5 parts of phenyl trimethylsiloxane, 3 parts of polydimethylsiloxane, 2.5 parts of tridecyl trimellitate, 0.5 part of diisostearyl malate, 1 part of trimethylsiloxysilicate, 0.5 part of dihydroxy(dimethyldodecylammonium) lithium montmorillonite, 3 parts of CI 77891 / aluminum hydroxide / triethoxysilane octyl complex, 3 parts of CI 77492 triethoxysilane octyl, 3 parts of CI 77491 triethoxysilane octyl, 3 parts of CI 77499 triethoxysilane octyl, 44.5 parts of water, 1,3-butylene glycol, 2 parts of glycerol, 0.7 part of magnesium sulfate, 0.1 part of NATRLQUEST E30 chelating agent, 0.7 part of NATRLQUEST E30 chelating agent, and 2 parts of 1,2-pentanediol is the optimal example. The color difference of the product in Example 5 is the largest compared with the color difference of the reference color powder-oil phase mixture in Comparative Example 1, and the color difference value of the product after 30 min of use is the smallest, with excellent anti-short-term dulling effect.

Claims

1. A method for preparing a base makeup product that resists short-term darkening, characterized in that: include: S1, preparing mixed color powder for base makeup products; S2, preparing the oil phase for base makeup products; S3, mixing the mixed toner and the oil phase, and performing ultrasonic dispersion to obtain a toner-oil phase mixed liquid; S4, testing the color difference between the toner-oil phase mixture and the reference toner-oil phase mixture, and selecting the toner-oil phase mixture with the largest color difference value; S5. The toner-oil phase mixture with the largest color difference value is used as a raw material, and then emulsified evenly with the water phase to prepare a base makeup product that resists short-term darkening.

2. An anti-short-term darkening makeup base product prepared according to claim 1, characterized in that: The preparation raw materials include a toner-oil phase mixed liquid and a water phase; The raw materials for preparing the toner-oil phase mixed solution include mixed toner and oil phase; The raw materials for preparing the oil phase include emulsifier, stabilizer, silicone oil, modified silicone oil, ester oil and alkane oil.

3. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The mass ratio of the emulsifier, stabilizer, silicone oil, modified silicone oil, ester oil and hydrocarbon oil is (1-5): (0.1-1): (10-20): (1-8): (1-10): (0.1-3).

4. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The emulsifier includes at least one of cetyl PEG / PPG-10 / 1 polydimethylsiloxane, sorbitan sesquioleate, PEG-10 polydimethylsiloxane, and PEG-9 polydimethylsiloxyethyl polydimethylsiloxane.

5. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The silicone oil includes at least one of cyclopentasiloxane, polydimethylsiloxane, KF-96A-6CS silicone oil, and trimethylsiloxyphenyl polydimethylsiloxane.

6. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The modified silicone oil includes phenyl polytrimethylsiloxane.

7. The anti-short-term darkening makeup base product according to any one of claims 1 to 6, characterized in that: The ester oil includes at least one of caprylic / capric triglyceride, tridecyl trimellitate, diisostearyl malate, butylene glycol dicaprylate / dicaprate, and trimethylsiloxysilicate.

8. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The hydrocarbon oil includes isododecane.

9. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The raw materials for preparing the mixed color powder include a compound of CI 77891 / aluminum hydroxide / triethoxyoctylsilane, CI 77492 triethoxyoctylsilane, CI 77491 triethoxyoctylsilane and CI 77499 triethoxyoctylsilane.

10. The anti-short-term darkening makeup base product according to claim 2, characterized in that: The raw materials for preparing the water phase include, by weight, 5-10 parts of moisturizer, 0.1-0.3 parts of chelating agent, 0.5-1 parts of preservative, 0.5-1 parts of antifreeze agent and 40-80 parts of water.

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