An air feel pre-makeup hold spray and a method of preparing the same

Abstract

This invention relates to the field of cosmetic technology, particularly to the field of IPC A61K8, and further to an air-feeling makeup prep spray and its preparation method. By mass percentage, the raw materials include 20-60% of a mixed liquid containing alkyl silicone polymers, 0.05-1% of spherical powder, and the balance being alkanes with more than 12 carbon atoms. This invention creatively prepares a makeup prep spray that can replace conventional makeup primers and serums, improving makeup adherence and achieving a setting and lasting effect, preventing makeup from caking or a stiff, lifeless appearance.

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, particularly to the field of IPCA61K8, and further to an air-feeling pre-makeup makeup-holding spray and its preparation method. Background Technology

[0002] To maintain the longevity of makeup, setting powder is usually applied as the last step in foundation application. Currently, the main setting products on the market are loose powder, pressed powder, and setting spray. In recent years, with recommendations from beauty bloggers and beauty gurus, and the fact that setting spray has a good makeup-melting effect and can change the texture of foundation, it has become increasingly popular among consumers.

[0003] For example, Chinese patent CN202010684710 discloses a lightweight, long-lasting makeup setting spray and its preparation method. By weight percentage, it includes: skin conditioning agent: butylene glycol: 1-3%; witch hazel water: 1-5%; sugar kelp extract: 1-5%; starch octenyl succinate aluminum: 0.5-2%; propylene glycol: 1-3%; Lactobacillus / mung bean seed extract / monosodium glutamate fermentation product filtrate: 0.1-1.5%; nordihydroguaiac acid: 0.5-1.5%; matrix component: 0.5-3%; deionized water: balance. It has excellent oil control and quick makeup setting effects, and better makeup longevity. However, this technical solution is similar to the main ingredients of current makeup setting sprays, consisting of water, film-forming agents, and some specific substances. During use, small water droplets may be sprayed out, and a tight feeling may occur after complete drying, making it unsuitable for subsequent touch-ups.

[0004] Based on this, the purpose of this invention is to provide a pure oil-based makeup-holding spray for pre-makeup use, which can replace conventional makeup primers and essence oils, improve the adherence of makeup, and achieve the effect of setting and holding makeup, avoiding makeup from caking or a stiff, lifeless look. At the same time, the makeup-holding spray provided by this invention does not require inflation and can form a good atomization effect at the nozzle. The spray is light and thin and forms a film quickly. It has low requirements for packaging materials and saves on packaging costs. Summary of the Invention

[0005] The first aspect of the present invention provides an air-feeling makeup prep spray, wherein the raw materials, by mass percentage, include 20-60% of a mixed liquid containing an alkylsilicon polymer, 0.05-1% of spherical powder, and the balance being alkanes with more than 12 carbon atoms.

[0006] Preferably, the air-feeling makeup prep spray comprises, by mass percentage, 20-40% of a mixed liquid containing alkylsilicon polymers, 0.05-0.5% spherical powders, and the balance being alkanes with more than 12 carbon atoms.

[0007] In some preferred embodiments, the mass percentage of the alkylsilane polymer in the liquid mixture containing the alkylsilane polymer is 50-70%.

[0008] Preferably, the alkylsilane polymer in the mixed liquid contains 60% by mass.

[0009] Preferably, the alkylsilane polymer is a silaneoxysilicate with at least two methyl groups.

[0010] Preferably, the at least two methyl siloxane silicates are selected from one or a combination of two of trimethylsiloxane silicates or phenylpropyl dimethylsiloxane silicates.

[0011] Preferably, the silanolyl silicate with at least two methyl groups is trimethylsilanolyl silicate.

[0012] In some preferred embodiments, the liquid mixture containing the alkylsilane polymer further includes an organopolysiloxane.

[0013] In some preferred embodiments, the organopolysiloxane is selected from one or more combinations of linear siloxane polymers, branched siloxane polymers, and cyclic siloxane polymers.

[0014] Preferably, the organopolysiloxane is a linear siloxane polymer.

[0015] Preferably, the linear siloxane polymer is selected from one or a combination of two of polydimethylsiloxane or polymethylhydrosiloxane.

[0016] Preferably, the linear siloxane polymer is polydimethylsiloxane.

[0017] In some preferred embodiments, the viscosity of the liquid mixture containing the alkylsilane polymer is 4000~6000 mmHg. 2 / s.

[0018] Preferably, the viscosity of the liquid mixture containing the alkylsilane polymer is 5000 mm. 2 / s.

[0019] Preferably, the mass percentage of the mixed liquid containing the alkylsilane polymer is 30%.

[0020] In cosmetics, trimethylsiloxane silicates typically form a durable polymer film to improve the longevity of the cosmetic. However, in this application's system, the applicant discovered during experiments that when trimethylsiloxane silicates are used alone, the resulting film has poor integrity and a poor skin feel, and is unstable, easily leading to powder settling. The applicant unexpectedly discovered that using a mixed solution containing trimethylsiloxane silicates, specifically an organopolysiloxane polymer, particularly when the organopolysiloxane is a linear-chain siloxane polymer and the linear-chain siloxane polymer is polydimethylsiloxane, not only improves film integrity and makeup retention but also enhances the moisturizing performance of the spray. The applicant further discovered that when the mass percentage of the alkylsiloxane polymer in the mixed liquid containing the alkylsiloxane polymer is 60%, and the viscosity of the mixed liquid containing the alkylsiloxane polymer is 5000 mm³, the effect is significant. 2 When the mass percentage of the mixed liquid containing alkylsiloxane polymers is 30%, it can effectively improve the stability, spray effect, and makeup-holding properties of the pre-makeup makeup spray. The applicant speculates that this is because the linear-chain polydimethylsiloxane can enhance the spreading of trimethylsiloxysilicate on the skin, thereby accelerating film formation and improving film integrity. Simultaneously, the linear-chain polydimethylsiloxane and trimethylsiloxysilicate work together to form a protective oil film on the skin surface, which has a certain effect in preventing skin moisture loss and improving the moisturizing performance of the spray. In addition, polydimethylsiloxane can also improve the strength of the polymer film formed by trimethylsiloxysilicate, thereby improving the makeup-holding properties of the spray. When the mass percentage of the alkylsiloxane polymer in the mixed liquid containing alkylsiloxane polymers is 60%, and the viscosity of the mixed liquid containing alkylsiloxane polymers is 5000 mm³ / s... 2 At a viscosity of 5000 m³ / s, the combined effect of polydimethylsiloxane and trimethylsiloxysilicate is optimal, and trimethylsiloxysilicate can be stably maintained in the system of this application. Simultaneously, under these conditions, the mixed liquid containing alkylsilane polymers can improve the compatibility with the spherical powders and straight-chain alkanes with more than 12 carbon atoms in this application, thereby giving the prepared makeup-holding spray good low-temperature and high-temperature stability. Furthermore, when the mass percentage of alkylsilane polymers in the mixed liquid containing alkylsilane polymers is 60% and the viscosity of the mixed liquid containing alkylsilane polymers is 5000 m³ / s... 2 At a speed of / s, it can also reduce the surface tension of the spray system, improve the atomization effect of the spray, and thus improve the makeup staying power.

[0021] In some preferred embodiments, the spherical powder is selected from one or more combinations of polymethylsilsesquioxane, polymethyl methacrylate, and cellulose acetate.

[0022] Preferably, the spherical powder is polymethylsilsesquioxane.

[0023] Preferably, the average particle size of the polymethylsilsesquioxane is 2~10µm.

[0024] Preferably, the average particle size of the polymethylsilsesquioxane is 5±1µm.

[0025] Preferably, the polymethylsilsesquioxane has a mass percentage of 0.05-0.2%.

[0026] Preferably, the polymethylsilsesquioxane has a mass percentage of 0.1%.

[0027] In some preferred embodiments, the alkane with more than 12 carbon atoms is a straight-chain alkane or a branched isoalkane.

[0028] Preferably, the alkane with more than 12 carbon atoms is a branched isoalkane.

[0029] Preferably, the kinematic viscosity of the branched isoalkane is 1~3 Cst (37.8°C).

[0030] Preferably, the kinematic viscosity of the branched isoalkane is 1.37 Cst (37.8°C).

[0031] Another aspect of the present invention provides a method for preparing an air-feeling makeup prep spray, comprising the following steps: mixing a liquid containing an alkylsilicon polymer, spherical powder, and an alkane with more than 12 carbon atoms evenly by mass percentage.

[0032] Preferably, the stirring speed is 15~25 rpm.

[0033] Beneficial effects:

[0034] 1. When the present application uses a mixed solution containing trimethylsiloxane silicate, the mixed solution includes organopolysiloxane, especially when the organopolysiloxane is a linear siloxane polymer and the linear siloxane polymer is polydimethylsiloxane, it not only improves the integrity of film formation and the makeup holding power, but also improves the moisturizing performance of the spray.

[0035] 2. In this application, the mass percentage of the alkylsilane polymer in the mixed liquid containing the alkylsilane polymer is 60%, and the viscosity of the mixed liquid containing the alkylsilane polymer is 5000 mm. 2 When the spray speed is / s, it can effectively improve the stability of the makeup prep spray, as well as the spray effect and makeup staying power.

[0036] 3. In this application, when the spherical powder is polymethylsilsesquioxane, it can reduce the hardness of the film formed by trimethylsiloxysilicate, improve the flexibility of the film, avoid skin tightness, thereby improving compatibility with subsequent base makeup and reducing the problem of pilling of base makeup.

[0037] 4. In this application, the average particle size of polymethylsilsesquioxane is 5±1µm, and the mass percentage of polymethylsilsesquioxane is 0.1%. When the average particle size of polymethylsilsesquioxane is 5±1µm, the stability of the makeup prep spray is further improved.

[0038] 5. In this application, when the alkane with more than 12 carbon atoms is a branched isoalkane, and the kinematic viscosity of the branched isoalkane is 1~3 Cst (37.8℃), the surface tension of the pre-makeup makeup spray system can be reduced, the atomization effect can be improved, and thus the makeup holding effect can be improved. Attached Figure Description

[0039] Figure 1 The bar chart shows the average and standard deviation of the sensory indicators of the makeup pre-makeup spray in Example 1.

[0040] Figure 2 Comparative Example 1: Bar chart showing the average and standard deviation of sensory indicators for makeup prep spray.

[0041] Figure 3 The bar chart shows the average and standard deviation of the sensory indicators of the makeup pre-makeup sprays in Example 1 and Comparative Example 1.

[0042] In the figure: A is Example 1, and B is Comparative Example 1.

[0043] Figure 4 The values ​​of ITA° (AU) for the makeup-holding spray before makeup application in Example 1 are shown at different time points.

[0044] In the picture: 1-Makeup prep spray, 2-Blank.

[0045] Figure 5 The makeup retention coefficient (%) of the makeup-holding spray at different time periods in Example 1.

[0046] In the picture: 1-Makeup prep spray, 2-Blank. Detailed Implementation

[0047] Example 1

[0048] Example 1 provides an air-feeling makeup prep spray, which, by mass percentage, comprises 30% mixed liquid containing alkyl silicone polymer, 0.1% spherical powder, and the balance being alkanes with more than 12 carbon atoms.

[0049] The mass percentage of the alkylsilane polymer in the mixed liquid containing the alkylsilane polymer is 60%.

[0050] The alkylsilane polymer is a silaneoxysilicate with at least two methyl groups, and the silaneoxysilicate with at least two methyl groups is a trimethylsilaneoxysilicate.

[0051] The mixed liquid containing alkylsilane polymers also includes organopolysiloxanes.

[0052] The organopolysiloxane is a linear siloxane polymer, and the linear siloxane polymer is polydimethylsiloxane.

[0053] The viscosity of the liquid mixture containing the alkylsilane polymer is 5000 mm. 2 / s, Model: Shin-Etsu KF7312K.

[0054] The spherical powder is polymethylsilsesquioxane.

[0055] The polymethylsilsesquioxane has an average particle size of 5±1µm and is model number TOSPEARL 2000B.

[0056] The alkanes with more than 12 carbon atoms are branched isoalkanes.

[0057] The kinematic viscosity of the branched isoalkanes is 1.37 Cst (37.8°C), model: INEOS PERMETHYL 99A.

[0058] A method for preparing an air-feeling makeup prep spray includes the following steps: mixing a liquid containing an alkylsilicon polymer, spherical powder, and an alkane with more than 12 carbon atoms according to a mass percentage until homogeneous.

[0059] The stirring speed is 25 rpm.

[0060] Comparative Example 1

[0061] Comparative Example 1 provides an air-feeling makeup prep spray, the specific implementation of which is the same as Example 1, except that, by mass percentage, the raw materials include 70% mixed liquid containing alkylsilicon polymer, 1% spherical powder, and the balance being alkanes with more than 12 carbon atoms.

[0062] Comparative Example 2

[0063] Comparative Example 2 provides an air-feeling makeup prep spray, which is implemented in the same way as Example 1, except that, by mass percentage, the raw materials include 50% of a mixed liquid containing alkylsilicon polymer, 0.3% of spherical powder, and the balance of alkanes with more than 12 carbon atoms.

[0064] Comparative Example 3

[0065] Comparative Example 3 provides an air-feeling makeup prep spray, which is implemented in the same way as Example 1, except that, by mass percentage, the raw materials include 30% of a mixed liquid containing alkylsilicon polymer, 0.5% of spherical powder, and the balance of alkanes with more than 12 carbon atoms.

[0066] Comparative Example 4

[0067] Comparative Example 4 provides an air-feeling makeup prep spray, which is implemented in the same way as Example 1, except that, by mass percentage, the raw materials include 50% of a mixed liquid containing alkylsilicon polymer, 0.4% of spherical powder, and the balance of alkanes with more than 12 carbon atoms.

[0068] Performance testing:

[0069] 1. Efficacy Test:

[0070] (1) Sensory testing:

[0071] Test products: Example 1 and Comparative Example 1.

[0072] Test objective: Sensory evaluation before and after product use;

[0073] Participants: 10;

[0074] Experimental method: Quantitative descriptive analysis.

[0075] (2) Makeup holding test:

[0076] Test product: Example 1.

[0077] Purpose of the experiment: To evaluate the product's effectiveness in maintaining makeup quality through human efficacy testing.

[0078] Subject information:

[0079] Gender: Female

[0080] Age: 30-33 years old

[0081] Skin type: Combination skin

[0082] Number of testers / valid testers: 5 / 5.

[0083] Test content: See Table 1.

[0084] Table 1:

[0085]

[0086] 2. Stability Test: The stability of the makeup prep spray was tested after being placed at -18℃ for 1 month and at -7℃, 4℃, 25℃, 37℃, 45℃, and 50℃ for 3 months. If no foundation sinking occurred, it was considered normal.

[0087] Test results:

[0088] 1. Efficacy test results:

[0089] (1) Sensory testing:

[0090] Example 1: The spray is very light and fine; the quantitative descriptive analysis test results are shown in Table 2.

[0091] Table 2

[0092]

[0093] summary:

[0094] ① The test sample is very thin and has excellent continuity;

[0095] ② When used on the hands, it is very easy to apply, and the application is smooth and slightly moist.

[0096] ③ After use on the hands, the test product was absorbed very quickly, leaving a slight residue. The skin's luster increased slightly, and the skin felt slightly moisturized, very dry, refreshing, and slightly soft.

[0097] ④ Overall, the test subject showed a relatively high level of liking for the test product, with no adverse reactions.

[0098] Comparative Example 1: The spray condition was poor and it was difficult to spray out; the quantitative descriptive analysis test results are shown in Table 3.

[0099] Table 3

[0100]

[0101] summary:

[0102] ① The test sample is very thin and has excellent continuity;

[0103] ② When used on the hands, it is very easy to apply, and the application is smooth and slightly moist.

[0104] ③ After use on the hands, the test product was absorbed relatively quickly, leaving a slight residue. The skin's luster increased slightly, and the skin felt slightly moisturized, dry, and refreshed, with a slightly soft feel.

[0105] ④ Overall, the test subjects showed a relatively high level of liking for the test product, with no adverse reactions. The pairwise quantitative descriptive analysis results of Example 1 (A) and Comparative Example 1 (B) are shown in Table 4.

[0106] Table 4

[0107]

[0108] In summary, product A was absorbed faster after hand application; no statistically significant differences were found between test products A and B in terms of indicators before, during, and after hand application, as well as overall preference.

[0109] 2. The results of the stability test are shown in Table 5.

[0110] Table 5

[0111]

Claims

1. An air-feel makeup prep spray, characterized in that, By mass percentage, the raw materials consist of 30% mixed liquid containing alkylsilane polymers, 0.1% spherical powder, and the balance being alkanes with more than 12 carbon atoms; The alkylsilane polymer is a silaneoxysilicate with at least two methyl groups; the silaneoxysilicate with at least two methyl groups is a trimethylsilaneoxysilicate. The spherical powder is polymethylsilsesquioxane; The mixed liquid containing alkylsiloxanes also includes organopolysiloxanes; the organopolysiloxanes are linear siloxane polymers, and the linear siloxane polymers are polydimethylsiloxanes; The alkane with more than 12 carbon atoms is a branched isoalkane; the kinematic viscosity of the branched isoalkane is 1~3 Cst. The viscosity of the liquid mixture containing the alkylsilane polymer is 4000~6000 mm. 2 / s; The average particle size of the polymethylsilsesquioxane is 2~10µm.

2. A method for preparing an air-feeling makeup pre-makeup spray according to claim 1, characterized in that, The process includes the following steps: mixing a liquid mixture containing alkylsilicon polymer, spherical powder, and an alkane with more than 12 carbon atoms according to their mass percentages until homogeneous.

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