Liquid matrix and freeze-dried powder two-phase liquid foundation as well as instant shaking compounding method, container and application of liquid matrix and freeze-dried powder two-phase liquid foundation

Abstract

The invention discloses a liquid matrix and freeze-dried powder two-phase liquid foundation as well as an instant shaking compounding method, a container and application thereof, the liquid matrix and freeze-dried powder two-phase liquid foundation comprises a liquid matrix phase and a freeze-dried powder phase, and the weight ratio of the liquid matrix phase to the freeze-dried powder phase is (65-85): (15-35); high-activity components and other components are separated and stored, potential quality hazards such as degradation and oxidation of the active components in a liquid environment are avoided from the source, after the powder phase is subjected to freeze-drying process treatment, the biological activity and stability of the high-activity components can be effectively reserved, the quality guarantee period of the product is remarkably prolonged, and the product quality guarantee period is prolonged. Due to the design of a double-phase separated sealing structure, the liquid matrix phase and the freeze-dried powder phase can be prevented from being in contact in the storage stage, and further guarantee is provided for the product stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of foundation liquid, in particular to a dual-phase foundation liquid with a liquid base and a freeze-dried powder, a shake-to-mix method, a container and an application thereof. BACKGROUND

[0002] Foundation liquid is a major category in the color cosmetics market, and its functional characteristics have evolved from simply covering blemishes and modifying skin tone to also having skin care effects. In recent years, consumers have raised requirements for the safety and efficacy of cosmetics, and different functional ingredients (such as polysaccharides, vitamins and analogs, polypeptides, plant extracts, etc.) have been added to foundation liquids. Such functional foundation liquids will become a market hotspot and a future development trend. However, most existing foundation liquids are prepared using a single-phase homogeneous emulsification process and are stored in a liquid state for a long time, and the functional raw materials are prone to degradation and inactivation, resulting in a decrease in the actual active ingredients of the product.

[0003] The current technology has the following problems that need to be overcome:

[0004] 1. Stability of active ingredients: In a liquid system, many high-activity ingredients such as polypeptides, vitamin C, and plant extracts are sensitive to temperature, light intensity, and pH changes, and are prone to degradation, which greatly reduces their efficacy. Related studies have shown that even in an ideal storage environment, the activity of some active ingredients in a liquid medium will decrease significantly within 3 to 6 months. Traditional liquid foundation products generally use a single packaging design, and all ingredients are mixed and homogenized into different system emulsion particles during production. However, according to the basic laws of thermodynamics, the stability of such products will change significantly over time, making high-activity ingredients more susceptible to temperature changes, pH fluctuations, and other factors during storage, ultimately leading to a decrease in the overall efficacy of the product.

[0005] 2. Formulation limitations: Some high-activity ingredients have compatibility restrictions and cannot be stably coexisting in the same system for a long time, which greatly limits the innovation and expansion of foundation liquid formulations.

[0006] 3. Difficulties in uniform dispersion of powder: In traditional processes, direct mixing of powder can lead to clumping and dispersion difficulties, often requiring a large amount of emulsifier to wet the powder and achieve complete dispersion. However, a large amount of emulsifier can result in an oily skin feel during product use. Under current technical conditions, powder is prone to form agglomerates during mixing with the liquid base, resulting in uneven dispersion of the material, which significantly affects the actual use of the product.

[0007] 4. Significant limitations in user experience: Currently, some phase-separated products require external force for mixing, which is not only cumbersome but also makes it difficult to guarantee the uniformity of mixing. Existing dual-chamber containers generally suffer from insufficient sealing, making the powder prone to absorbing moisture. To prevent moisture and bacterial growth, traditional products often employ costly packaging processes, directly increasing the overall cost of the product. In actual use, traditional phase-separated packaging products require manual mixing of the powder and liquid matrix, a complex process that often yields unsatisfactory mixing results.

[0008] To address the aforementioned issues, attempts have been made in this field to preserve active ingredients using freeze-drying technology; however, existing technical solutions still have significant shortcomings:

[0009] The freeze-dried powder and solvent are packaged separately: Although this method improves the stability problem to some extent, it requires manual mixing of the freeze-dried powder and solvent during use, which is a rather cumbersome process.

[0010] There are obvious defects in the phase-separated packaging design: the existing dual-cavity packaging container design often leads to high production costs due to its complex structure; some products also have poor sealing performance, which directly affects the stability of product quality.

[0011] The activation method is limited by its singularity: most phase-packaged products require additional tools or complex operations to achieve mixing, resulting in a poor user experience.

[0012] Therefore, developing a shake-and-mix liquid matrix-lyophilized powder biphase foundation that can effectively maintain the stability of active ingredients and is convenient to use and cost-controllable has significant technical application value and market promotion significance. Summary of the Invention

[0013] The purpose of this invention is to provide a two-phase foundation liquid consisting of a liquid matrix and lyophilized powder, a method for mixing and recombining the liquid, a container, and an application thereof, in order to solve the above-mentioned technical problems.

[0014] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0015] A two-phase liquid foundation consisting of a liquid matrix phase and a lyophilized powder phase, wherein the weight ratio of the liquid matrix phase to the lyophilized powder phase is 65-85:15-35.

[0016] The liquid matrix phase comprises, by weight, the following components:

[0017] Polyglycerol esters: 1-3 parts;

[0018] Polyether alkyl siloxanes: 0.2-1 part;

[0019] Triglycerides (ethylhexyl ester): 2-3 parts;

[0020] Trimethylsiloxysilicate: 1-4 parts;

[0021] Cyclotetrasiloxane: 5-8 parts;

[0022] Oils and silicones: 8-12 parts;

[0023] Polyols: 3-8 parts;

[0024] Additives: 0.05-2 parts;

[0025] Deionized water: 40-65 parts;

[0026] The freeze-dried powder phase comprises the following components by weight parts:

[0027] High-activity ingredients: 5-20 parts;

[0028] Covering agents: 5-10 parts;

[0029] Fillers: 5-10 parts;

[0030] Preferably, the liquid base phase further comprises: polyoxyethylene ethers: 0.2-1 parts;

[0031] The freeze-dried powder phase further comprises: functional ingredients: 1-6 parts.

[0032] Preferably, the additives include chelating agents, stabilizers, fragrances.

[0033] Preferably, the high-activity ingredients include one or more of the following:

[0034] Vitamins, including one or more of the following: vitamin A (retinol), vitamin C (ascorbic acid), vitamin E (tocopherol), vitamin B3 (nicotinamide), vitamin B5 (panthenol);

[0035] Polypeptides, including one or more of the following: acetyl hexapeptide-8, conotoxin, signal peptides, carrier peptides, carnosine, glutathione, oligopeptide-1, oligopeptide-3, hexapeptide;

[0036] Plant extracts, including one or more of the following: green tea extract, spilanthes extract, gynura extract, licorice root extract, pistachio oil, turmeric extract, aloe vera leaf extract, rhodiola extract;

[0037] Ceramides, including one or more of the following: ceramide EOP, ceramide NP, ceramide AS;

[0038] Hyaluronic acid and its derivatives;

[0039] Antioxidant ingredients, including fullerenes.

[0040] Preferably, the covering agents include one or more of:

[0041] Titanium dioxide;

[0042] Zinc oxide;

[0043] Iron oxides.

[0044] Preferably, the fillers include one or more of:

[0045] Silica;

[0046] Modified starch;

[0047] Talc;

[0048] Kaolin;

[0049] Mica powder.

[0050] Preferably, the functional ingredients include one or more of:

[0051] Oil control ingredients, including PCA zinc, lactic acid;

[0052] Anti-wrinkle firming ingredients, including biosferine, ekdine, ergothioneine;

[0053] Soothing ingredients, including bisabalol, dipotassium glycyrrhizinate;

[0054] Anti-inflammatory ingredients, including allantoin, salicylic acid;

[0055] Sunscreen ingredients, including ethylhexyl methoxy cinnamate.

[0056] A method for reconstituting a dual-phase liquid foundation comprising a liquid base and a lyophilized powder, comprising the steps of:

[0057] Preparation of the liquid base:

[0058] Polyoxyethylene ethers, polyglycerol esters, polyether alkyl siloxanes, glyceryl tri(ethylhexanoate), trimethylsiloxysilicate, cyclopentasiloxane, oils and silicones are added to the oil phase kettle, heated to 75-85°C, and stirred until uniform to obtain an oil phase mixture;

[0059] Deionized water, polyols, additives are added to the water phase kettle, heated to 75-85°C, and stirred until uniform to obtain a water phase mixture;

[0060] Slowly add the water phase mixture into the oil phase mixture, high speed homogenization (3000 rpm) emulsification for 8 minutes, then stir to cool to 40-45℃, add the essence, continue to stir to room temperature, to get the liquid base phase;

[0061] Freeze-dried powder preparation:

[0062] Add high-activity ingredients, covering agents, fillers and functional ingredients into a mixing container, mix well and evenly;

[0063] Superfine grinding of the mixed powder material to make the particle size reach 5-15 μm;

[0064] Freeze-drying treatment of the ground powder material, the specific process parameters are:

[0065] Pre-freezing stage: temperature -40 to -60℃, time 2-4 hours;

[0066] Sublimation drying stage: temperature -10 to 0℃, pressure 0.01-0.1 mbar, time 12-24 hours;

[0067] Desorption drying stage: temperature 20-30℃, pressure 0.001-0.01 mbar, time 6-12 hours;

[0068] Dual-phase packaging:

[0069] Put the prepared liquid base phase and freeze-dried powder phase into the two cavities of a dual-cavity container respectively, the liquid base is filled into the lower cavity and the powder phase is placed in the upper cavity, and the two cavities are separated by a breakable sealing film;

[0070] Seal the dual-cavity container to ensure that the liquid base phase and the freeze-dried powder phase do not come into contact during storage;

[0071] Instant reconstitution:

[0072] When in use, break the breakable sealing film, and mix the freeze-dried powder phase and the liquid base phase;

[0073] Shake the container up and down to mix the liquid base phase and the freeze-dried powder phase well, forming a uniform foundation liquid.

[0074] Dual-body packaging can also be used: the liquid base and the freeze-dried powder are placed in two containers respectively, and then mixed when in use.

[0075] A container for a liquid base and freeze-dried powder dual-phase foundation liquid, comprising a bottle body, a pump head mounted on the top of the bottle body, and a sealing film fixed inside the bottle body, which separates the liquid base phase and the freeze-dried powder phase in the bottle body.

[0076] Application of a liquid base and freeze-dried powder dual-phase foundation liquid in the field of cosmetics.

[0077] The beneficial effects of the present application are:

[0078] 1. The path to improve the stability of high-activity ingredients:

[0079] Separate storage of high-activity ingredients and other components can avoid quality problems such as degradation and oxidation of active ingredients in liquid environment from the root.

[0080] After the freeze-drying process, the powder phase can effectively retain the biological activity and stability of high-activity ingredients, significantly extending the shelf life of the product.

[0081] The sealed structure of the two-phase separation can ensure that the liquid matrix phase and the freeze-dried powder phase do not come into contact during storage, providing further protection for product stability.

[0082] 2. Convenient operation and efficient recombination:

[0083] The shake-recombination design greatly simplifies the product use process. Users only need to shake gently for a few seconds after simple pressing, and the liquid matrix and freeze-dried powder can be quickly mixed.

[0084] The breakable sealing film structure ensures that the liquid matrix phase and the freeze-dried powder phase are fully integrated, ultimately forming a foundation liquid with uniform texture, which can stably present the desired use effect.

[0085] The liquid matrix and freeze-dried powder ratio determined after multiple rounds of optimization makes the viscosity of the mixed foundation liquid precisely and stably in the 4000-6000 cps interval, with excellent flowability and extensibility, making the application and spreading process more smooth and easy.

[0086] 3. Excellent product performance:

[0087] The combination of polyoxyethylene ether and polyglycerol ester gives the system excellent emulsifying ability, which is the key guarantee for the stability of the mixed foundation liquid.

[0088] After introducing polyether alkyl siloxane ingredients, the wettability of the powder is significantly improved, allowing the product to quickly disperse and form a uniform system.

[0089] The addition of trimethylsiloxy silicate can form a breathable film texture on the skin surface, significantly improving the product's hold effect.

[0090] The combination of oil and silicone oil not only brings a comfortable skin feel but also enhances the product's extensibility, making the application process easy and comfortable without a greasy feeling.

[0091] 4. High formula flexibility:

[0092] With the help of the dual-phase packaging design, the liquid matrix phase and the freeze-dried powder phase can use different formula systems respectively, which ingeniously solves the common component compatibility problem in traditional foundation liquid.

[0093] The high-activity ingredients can be flexibly adjusted according to different efficacy requirements such as whitening, anti-aging, moisturizing, and oil control, greatly improving the functionality and targeting of the product.

[0094] The freeze-drying process used in the powder phase has good adaptability to various high-activity ingredients such as polypeptides, vitamins, and plant extracts.

[0095] 5. Environmental protection and energy saving advantages:

[0096] Compared with traditional spray drying processes, the freeze-drying process performs more outstandingly in energy saving and environmental protection, while ensuring higher product quality.

[0097] The design of the dual-phase packaging container helps to reduce the consumption of packaging materials, reducing production costs while also embodying a stronger environmental protection concept.

[0098] In summary, the liquid matrix-freeze-dried powder dual-phase foundation liquid and its instant shake-reconstitution method of the present application successfully overcome the problems of poor stability of active ingredients and inconvenient use in traditional foundation liquid, and have significant value in terms of technical innovation and market application. BRIEF DESCRIPTION OF DRAWINGS

[0099] Figure 1 Figure 1 is a structural schematic diagram of the container of the liquid matrix-freeze-dried powder dual-phase foundation liquid of the present application; DETAILED DESCRIPTION

[0100] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following specific embodiments are further described, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. The experimental methods in the following embodiments are conventional methods, and the materials, reagents, etc. used in the following embodiments are commercially available unless otherwise specified.

[0101] Example 1: Whitening and moisturizing dual-phase foundation liquid

[0102] Liquid matrix phase formula (parts by weight):

[0103] Polyglycerol esters: polyglyceryl-2 dipolyhydroxystearate 0.8 parts, polyglyceryl-3 diisostearate 2 parts;

[0104] Polyether alkyl silicone: PEG-10 dimethicone: 0.5 parts;

[0105] Glycerin tri(ethylhexyl ester): 3 parts;

[0106] Trimethyl siloxy silicate: 2 parts;

[0107] Cyclopentasiloxane: 6 parts;

[0108] Oils and silicon oils: Macadamia nut oil: 1.5 parts; dimethicone 8 parts;

[0109] Polyols: Butylene glycol: 5 parts;

[0110] Additives: Magnesium sulfate: 0.5 parts; sodium hyaluronate: 0.03 parts; preservative: 0.4 parts; fragrance: 0.02 parts;

[0111] Deionized water: 40 parts

[0112] Freeze-dried powder phase formulation (parts by weight):

[0113] Highly active ingredients: Nicotinamide: 5 parts; vitamin C: 3 parts; hyaluronic acid: 2 parts, ceramide: 1 part

[0114] Covering agents: Titanium dioxide: 8.5 parts; iron oxides: 1 part in total

[0115] Fillers: Silica: 8.0 parts; mica: 1.75 parts;

[0116] Preparation method:

[0117] 1. Preparation of liquid base phase:

[0118] Polyglyceryl-2 dipolyhydroxystearate, polyglyceryl-3 diisostearate, PEG-10 dimethicone, glycerin tri(ethylhexyl ester), trimethyl siloxy silicate, cyclopentasiloxane, macadamia nut oil are added to the oil phase pot, heated to 80°C, stirred uniformly to obtain an oil phase mixture with a viscosity of 5000 cps.

[0119] Deionized water, butylene glycol, hyaluronic acid, magnesium sulfate, preservative are added to the water phase pot, heated to 80°C, stirred uniformly to obtain a water phase mixture.

[0120] The water phase mixture is slowly added to the oil phase mixture, homogenized and emulsified at high speed 3000 rpm / s for 8 minutes, then cooled to 45°C, the preservative is added, continue to stir to room temperature to obtain a liquid base phase.

[0121] 2. Preparation of powder phase:

[0122] Nicotinamide, titanium dioxide, iron oxide, vitamin C, hyaluronic acid, ceramide, silica, mica are added into a mixing container and mixed well.

[0123] The mixed powder material is subjected to ultrafine grinding to achieve a particle size of 8-12 μm.

[0124] The ground powder material is subjected to freeze-drying treatment, and the specific process parameters are as follows:

[0125] Pre-freezing stage: temperature -50℃, time 3 hours;

[0126] Sublimation drying stage: temperature -5℃, pressure 0.05 mbar, time 18 hours;

[0127] Desorption drying stage: temperature 25℃, pressure 0.005 mbar, time 9 hours;

[0128] 3. Two-phase sub-packaging:

[0129] The prepared liquid base phase and freeze-dried phase are respectively loaded into the two cavities of a double-cavity container, and the two cavities are separated by a breakable sealing film.

[0130] The double-cavity container is sealed to ensure that the liquid base phase and the freeze-dried powder phase do not come into contact during storage.

[0131] 4. Shake-to-recombine:

[0132] When in use, the breakable sealing film is broken, and the liquid base phase and the freeze-dried powder phase are mixed.

[0133] The container is gently shaken for 10 seconds to fully mix the emulsion phase and the powder phase, forming a uniform foundation liquid.

[0134] Product performance test:

[0135] Stability test: The product is placed in a 45℃ constant temperature oven for 4 weeks, and there is no obvious stratification, precipitation or discoloration phenomenon in the liquid base phase and the freeze-dried powder phase. After mixing, the pH value and viscosity change of the foundation liquid are within 5%.

[0136] Active ingredient retention rate: The contents of nicotinamide and vitamin C in the product are determined by high performance liquid chromatography. The results show that after 4 weeks of storage at 45℃, the retention rate of nicotinamide is 92.5%, and the retention rate of vitamin C is 89.7%.

[0137] User experience: 100 volunteers use the product, and the results show that 95% of the volunteers think that the product is easy to mix, 90% of the volunteers think that the product has good coverage and natural makeup effect, and 85% of the volunteers think that the product makes the skin feel fresh and comfortable after use, without greasy feeling.

[0138] Example 2: Anti-aging repair type dual-phase lyophilized foundation liquid

[0139] Liquid base phase formula (parts by weight):

[0140] Polyoxyethylene ethers: PEG-20 dipolyhydroxystearate: 0.6 parts

[0141] Polyglycerol esters: Polyglyceryl-3 diisostearate: 2.5 parts

[0142] Polyether alkyl siloxanes: Cetyl PEG / PPG-10 / 1 dimethicone: 0.8 parts

[0143] Glycerin tri(ethylhexyl ester): 3 parts

[0144] Trimethylsiloxysilicate: 2.5 parts

[0145] Cyclopentasiloxane: 6 parts

[0146] Oils and silicones: Shea butter: 2 parts; Octyl trimethylsiloxysilicate: 7 parts

[0147] Polyols: Glycerin: 5 parts

[0148] Additives: Sodium chloride: 1 part; Disodium EDTA: 0.05; Preservative: 0.5 parts; Fragrance: 0.1 part

[0149] Deionized water: 40 parts

[0150] Lyophilized powder phase formula (parts by weight):

[0151] High-activity ingredients: Ceramides: 3 parts; Centella asiatica extract: 3 parts; Spilanthes acuta extract: 2 parts

[0152] Covering agents: Titanium dioxide: 8 parts; Iron oxides: 1.5 parts

[0153] Fillers: Silica: 4 parts; Kaolin: 2 parts

[0154] Functional ingredients: Boswellia resinoids: 1.45 parts; Ergothioneine: 1 part; Trehalose: 3 parts

[0155] Preparation method:

[0156] 1. Preparation of the liquid base phase:

[0157] PEG-20 dipolyhydroxystearate, polyglyceryl-3 diisostearate, cetyl PEG / PPG-10 / 1 dimethicone, glycerin tri(ethylhexyl ester), trimethylsiloxysilicate, cyclopentasiloxane, shea butter, and bisabalol were added to the oil phase kettle, heated to 85°C, and stirred until uniform to obtain an oil phase mixture.

[0158] Deionized water, sodium chloride, glycerin, EDTA-2Na, preservative were added into the water phase pot, heated to 85℃, and stirred evenly to obtain a water phase mixture.

[0159] The water phase mixture was slowly added to the oil phase mixture, and homogenized at a high speed of 3000 rpm / s for 8 minutes. Then, the temperature was lowered to 42℃, and the essence was added. The stirring was continued until the room temperature was reached to obtain a liquid base phase.

[0160] 2. Preparation of the freeze-dried powder phase:

[0161] Ceramides, titanium dioxide, iron oxides, bovine collagen, ergothioneine, centella asiatica extract, bacopa monnieri extract, silica, kaolin, and trehalose were added into a mixing container and mixed evenly.

[0162] The mixed powder material was subjected to ultrafine grinding to achieve a particle size of 5-10 μm.

[0163] The ground powder material was subjected to freeze-drying treatment, and the specific process parameters were as follows:

[0164] Pre-freezing stage: temperature -55℃, time 3.5 hours;

[0165] Sublimation drying stage: temperature -8℃, pressure 0.03 mbar, time 20 hours;

[0166] Desorption drying stage: temperature 28℃, pressure 0.003 mbar, time 10 hours;

[0167] 3. Two-phase dispensing:

[0168] The prepared liquid base phase and freeze-dried powder phase were respectively loaded into two cavities of a double-cavity container, and the two cavities were separated by a breakable sealing film.

[0169] The double-cavity container was sealed to ensure that the liquid base phase and the freeze-dried powder phase did not contact during storage.

[0170] 4. Instant reconstitution:

[0171] During use, the breakable sealing film was broken, and the liquid base phase and the freeze-dried powder phase were mixed.

[0172] The container was gently shaken for 10 seconds to fully mix the liquid base phase and the freeze-dried powder phase, forming a uniform foundation liquid.

[0173] Product performance test:

[0174] Stability test: the product was placed in a 45℃ constant temperature oven for 4 weeks, and there was no obvious stratification, precipitation or discoloration phenomenon in the liquid base phase and the freeze-dried powder phase. After mixing, the pH value and viscosity change of the foundation liquid were within 8%.

[0175] Active ingredient retention: The active ingredient retention was determined by HPLC. The results showed that the active ingredient retention was 93.7% after 6 weeks of storage at 40°C.

[0176] User experience: 100 volunteers used the product. The results showed that 93% of the volunteers thought that the product was easy to mix, 88% of the volunteers thought that the product had good coverage and natural makeup effect, and 83% of the volunteers thought that the product made the skin feel moisturizing and comfortable after use, with obvious firming effect.

[0177] Example 3: Oil-control and acne-removing dual-phase freeze-dried foundation liquid

[0178] Liquid base phase formula (parts by weight):

[0179] Polyoxyethylene ethers: PEG-20 dipolyhydroxy stearate: 0.8 parts

[0180] Polyglycerol esters: Polyglyceryl-3 diisostearate: 1.5 parts

[0181] Polyether alkyl siloxanes: Lauryl PEG-8 dimethicone: 0.8 parts

[0182] Glycerol tri(ethylhexyl ester): 3 parts

[0183] Trimethylsiloxy silicate: 1.5 parts

[0184] Cyclopentasiloxane: 5 parts

[0185] Oils and silicones: Cetyl dimethicone: 4 parts; Octyldodecanol: 5 parts;

[0186] Polyols: Butylene glycol: 5 parts

[0187] Additives: Sodium chloride: 1 part; EDTA-2 sodium: 0.02 parts; Preservative: 0.3 parts; Fragrance: 0.1 part

[0188] Deionized water: 42.4 parts

[0189] Freeze-dried powder phase formula (parts by weight):

[0190] Highly active ingredients: Licorice extract: 3.5 parts; Green tea extract: 3 parts; Rhodiola extract: 3 parts;

[0191] Covering agent: Titanium dioxide: 9 parts; Zinc PCA: 2 parts;

[0192] Filling agent: Silica: 3 parts; Mica: 3 parts

[0193] Functional ingredients: Salicylic acid: 1.08 parts; Allantoin: 2 parts

[0194] Preparation method:

[0195] 1. Liquid base phase preparation:

[0196] PEG-20 dipolyhydroxystearate, polyglyceryl-3 diisostearate, lauryl PEG-8 polydimethylsiloxane, glyceryl tri(ethylhexanoate), trimethylsiloxysilicate, cyclopentasiloxane were added into the oil phase pot, heated to 85°C, stirred evenly to obtain an oil phase mixture.

[0197] Sodium chloride, butylene glycol, EDTA-2Na, deionized water, preservative were added into the water phase pot, heated to 85°C, stirred evenly to obtain a water phase mixture.

[0198] The water phase mixture was slowly added to the oil phase mixture, homogenized at high speed 3000 rpm / s for 8 minutes, then cooled to 45°C, added fragrance, continued to stir to room temperature to obtain a liquid base phase.

[0199] 2. Lyophilized powder phase preparation:

[0200] PCA zinc, salicylic acid, allantoin, licorice extract, silica, mica were added into a mixing container and mixed evenly.

[0201] The mixed powder material was subjected to ultrafine grinding to achieve a particle size of 10-15 μm.

[0202] The ground powder material was subjected to freeze-drying treatment, and the specific process parameters were as follows:

[0203] Pre-freezing stage: temperature -45°C, time 2.5 hours

[0204] Sublimation drying stage: temperature -10°C, pressure 0.08 mbar, time 16 hours

[0205] Desorption drying stage: temperature 22°C, pressure 0.007 mbar, time 8 hours

[0206] 3. Two-phase dispensing:

[0207] The prepared liquid base phase and lyophilized powder phase were respectively loaded into two cavities of a double-cavity container, and the two cavities were separated by a breakable sealing film.

[0208] The double-cavity container was sealed to ensure that the liquid base phase and the lyophilized phase did not contact during storage.

[0209] 4. Instant shake reconstitution:

[0210] In use, the breakable sealing film was broken, and the liquid base phase and the lyophilized powder phase were mixed.

[0211] Shake the container gently for 20 seconds to mix the liquid base phase and the freeze-dried powder phase thoroughly and evenly, forming a uniform liquid foundation.

[0212] Product performance test:

[0213] Stability test: Place the sample in a constant temperature environment of 45℃ for continuous storage for 4 weeks. Observation shows that neither the liquid base phase nor the freeze-dried powder phase has obvious delamination, precipitation or discoloration phenomenon; the fluctuation range of the pH value and the viscosity of the mixed liquid foundation is controlled within 10%.

[0214] Active ingredient retention rate: The active ingredient content in the product is determined by high performance liquid chromatography. The results show that after storage at 45℃ for 4 weeks, the active ingredient retention rate is 91.5%.

[0215] User experience: Organize 100 volunteers to participate in the trial, and the feedback data shows that 92% of the trial users think that the product is easy to mix, 87% of the trial users approve of its good coverage and natural makeup effect, and 82% of the trial users feel that the skin is comfortable and comfortable after use, and the oil control effect is remarkable.

[0216] Example 4: Refer to Figure 1 A container for liquid base and freeze-dried powder dual-phase liquid foundation includes a bottle body 3, a pump head 1 is installed on the top of the bottle body 3, a sealing film 4 is fixedly arranged in the bottle body 3, and the liquid base phase and the freeze-dried powder phase in the bottle body 3 are separated by the sealing film 4. In use, press the pump head 1 to make the suction pipe 2 on the pump head move down and pierce the sealing film 4, and shake the bottle body 3 to mix the liquid base phase and the freeze-dried powder phase in the bottle body 3 thoroughly.

[0217] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A two-phase foundation liquid consisting of a liquid matrix and lyophilized powder, characterized in that: It comprises two parts: a liquid matrix phase and a lyophilized powder phase, wherein the weight ratio of the liquid matrix phase to the lyophilized powder phase is 65-85:15-35; The liquid matrix phase comprises, by weight, the following components: Polyglycerol esters: 1-3 parts; Polyether alkyl siloxanes: 0.2-1 part; Triglycerides (ethylhexyl ester): 2-3 parts; Trimethylsilyloxysilicate: 1-4 parts; Cyclopentadimethylsiloxane: 5-8 parts; Greases and silicone oils: 8-12 parts; Polyols: 3-8 parts; Additives: 0.05-2 parts; Deionized water: 40-65 parts; The lyophilized powder phase comprises, by weight, the following components: Highly active ingredient: 5-20 parts; Masking agent: 5-10 parts; Filler: 5-10 parts.

2. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 1, characterized in that: The liquid matrix phase also includes: polyoxyethylene ethers: 0.2-1 parts; The freeze-dried powder phase also includes: functional ingredients: 1-6 parts.

3. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 1, characterized in that: The additives include chelating agents, stabilizers, and flavorings.

4. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 1, characterized in that: The highly active ingredients include one or more of the following: Vitamins, including one or more of vitamin A (retinol), vitamin C (ascorbic acid), vitamin E (tocopherol), vitamin B3 (nicotinamide), and vitamin B5 (panthenol); The polypeptide class includes one or more of acetyl hexapeptide-8, conospirin, signal peptides, carrier peptides, carnosine, glutathione, oligopeptide-1, oligopeptide-3, and hexapeptide; Plant extracts, including one or more of the following: green tea extract, purslane extract, centella asiatica extract, licorice root extract, sea buckthorn fruit oil, turmeric extract, aloe vera leaf extract, and rhodiola rosea extract; Ceramides, wherein the ceramides include one or more of ceramide EOP, ceramide NP, and ceramide AS; Hyaluronic acid and its derivatives; Antioxidant ingredients, including fullerenes.

5. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 1, characterized in that: The masking agent includes one or more of the following: Titanium dioxide; Zinc oxide; Iron oxides.

6. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 1, characterized in that: The filler includes one or more of the following: Silica; Modified starch; talcum powder; Kaolin; Mica powder.

7. The liquid matrix and lyophilized powder biphase foundation liquid according to claim 2, characterized in that: The functional ingredients include one or more of the following: Oil-controlling ingredients, including zinc PCA and lactic acid; Anti-wrinkle and firming ingredients, including serotonin, ectoine, and ergothioneine; Soothing ingredients, including bisabolol and dipotassium glycyrrhizate; Anti-inflammatory ingredients, including allantoin and salicylic acid; Sunscreen ingredients, including ethylhexyl methoxycinnamate.

8. A method for immediate mixing of a liquid matrix and a lyophilized two-phase foundation, characterized in that: Includes the following steps: Liquid matrix preparation: Polyoxyethylene ethers, polyglycerol esters, polyether alkyl siloxanes, triethylhexyl glycerol, trimethylsiloxysilicate, cyclopentadimethylsiloxane, oils and silicone oils are added to an oil phase pot, heated to 75-85℃, and stirred evenly to obtain an oil phase mixture. Deionized water, polyol, and additives are added to an aqueous phase pot, heated to 75-85℃, and stirred until homogeneous to obtain an aqueous phase mixture. The aqueous phase mixture was slowly added to the oil phase mixture, and the mixture was homogenized at high speed (3000 rpm) for 8 minutes. Then, the mixture was stirred and cooled to 40-45°C. The fragrance was added, and the mixture was stirred until room temperature was reached to obtain a liquid matrix phase. Preparation of freeze-dried powder: Add the highly active ingredients, masking agents, fillers, and functional ingredients to a mixing container and mix thoroughly. The mixed powder materials are ultra-fine pulverized to achieve a particle size of 5-15μm. The pulverized powder material is then freeze-dried, with the specific process parameters as follows: Pre-freezing stage: temperature -40 to -60℃, time 2-4 hours; Sublimation drying stage: temperature -10 to 0℃, pressure 0.01-0.1mbar, time 12-24 hours; Drying stage: temperature 20-30℃, pressure 0.001-0.01mbar, time 6-12 hours; Dual-phase package: The prepared liquid matrix phase and lyophilized powder phase are respectively loaded into the two cavities of a double-cavity container. The liquid matrix phase is loaded into the lower cavity of the container, and the powder phase is placed in the upper cavity. The two cavities are separated by a ruptureable sealing membrane. The dual-chamber container is sealed to ensure that the liquid matrix phase and the lyophilized powder phase do not come into contact during storage; Immediately shake and combine: When in use, the breakable sealing film is ruptured, and the lyophilized powder phase and the liquid matrix phase are mixed. Shake the container up and down to fully mix the liquid matrix phase and the freeze-dried powder phase to form a uniform foundation liquid.

9. A container for a two-phase foundation liquid containing a liquid matrix and lyophilized powder, characterized in that: Includes a bottle body (3), a pump head (1) is installed on the top of the bottle body (3), and a sealing membrane (4) is fixed inside the bottle body (3), the sealing membrane (4) separating the liquid matrix phase and the lyophilized powder phase inside the bottle body (3).

10. The application of a liquid matrix and lyophilized powder biphase foundation liquid according to any one of claims 1-7 in the cosmetics field.

Images