Composite emulsifying grease as well as preparation method and application thereof

Abstract

The invention relates to composite emulsifying grease as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. Every 100 parts by mass of the composite emulsified grease comprises the following components in parts by mass: 4-10 parts of phytosterol, 6-15 parts of oryzanol, 5-20 parts of vegetable fat unsaponifiable matter and the balance of vegetable fat, wherein the total mass part is 100. According to the preparation method, the phytosterol, the oryzanol, the vegetable fat and the vegetable fat unsaponifiable matter are selected to be combined into the composite emulsified fat, and through the preparation process of specific temperature control, sample adding sequence and container molding, the final product is of a solid structure and is semi-permeable or full-permeable composite emulsified fat, and the composite emulsified fat has fat solubility and water-oil emulsifying capacity. Meanwhile, the problems of oxidation discoloration and rancidity of the single molecule are solved, the long-period stability is achieved, and good safety, application stability and skin conditioning property are brought to cosmetics when the compound is applied to different cosmetics.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to a composite emulsified fat and a preparation method and application thereof. Background Art

[0002] There are many types of cosmetics with skin conditioning functions on the market. The conventional skin conditioning function in cosmetics refers to an active ingredient used to modify facial skin problems. The above refers to the skin conditioning functions of personal care products in a broad sense and the active ingredient function labels.

[0003] Based on the analysis of existing market data, skin conditioners are mostly functional ingredients derived from natural plant extracts or some functional raw materials that lack data support and are used as skin conditioners. At the same time, functional research on fat-soluble active ingredients that can improve skin conditions can be defined as skin conditioners.

[0004] When it comes to the types of raw materials with soothing and repairing functions, most of them are single substances or conventional auxiliary materials, and there is a lack of relevant functional overview. The specific structures of 2 or n lipid raw materials (n≥2) are combined through dispersion / polymerization / cross-linking or other composition methods. There are few types of personal care product research, and the categories are single, especially those involving the combination of cosmetic raw materials and the efficacy of care products. Therefore, there is an urgent need for a skin regulator with soothing and repairing effects and certain emulsification properties. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a composite emulsified fat having emulsification properties and an emulsion at a certain added concentration having a soothing and repairing effect on human skin, as well as a preparation method and application thereof.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] In a first aspect, the present invention provides a compound emulsified fat, wherein every 100 parts by mass of the compound emulsified fat comprises the following components in parts by mass: 4-10 parts by mass of phytosterols, 6-15 parts by mass of oryzanol, and 5-20 parts by mass of unsaponifiable vegetable oils and fats, and the vegetable oils and fats are supplemented to a total of 100 parts by mass.

[0008] The present invention selects phytosterols, oryzanol, vegetable oils and vegetable oil unsaponifiable matter to form a composite emulsifying fat, which has specific emulsifying properties and skin conditioning effects. The composite emulsifying fat of the present invention is a cosmetic raw material different from liposomes or composite materials or oil gels or composite antioxidants. It is a physical reaction process of bending and folding a specific molecular structure and then reconstructing it through cross-linking, which reduces the difficulty of using lipid active ingredients and improves the application stability of the composition in care products, while giving the composition a low HLB emulsifying property.

[0009] The vegetable oil plays the role of wetting the powdered active components and acting as an oil carrier in the composite emulsified fat; the unsaponifiable matter of the vegetable oil plays the role of a tail end in regulating the hardness and melting point (oil phase) of the oil in the composite emulsified fat.

[0010] As a preferred embodiment of the composite emulsified fat of the present invention, each 100 parts by mass of the composite emulsified fat includes the following components in parts by mass: 5-8 parts of phytosterols, 8-10 parts of oryzanol, and 10-15 parts of unsaponifiable vegetable oils and fats, and the vegetable oils and fats are supplemented to a total of 100 parts by mass.

[0011] As a preferred embodiment of the composite emulsified fat of the present invention, the source of the phytosterols includes at least one of rapeseed, rice bran and soybean.

[0012] Phytosterols are usually found in plant oils, nuts, plant seeds, vegetables, fruits and other plant-derived foods in the form of free sterols, sterol esters, steryl glycosides or acylated steryl glycosides. They are relatively common and there are many studies on their functionality in food and medicine. They are often used as key nutrients that affect sugar and lipid metabolism and have a similar structure and function to cholesterol in the human body. Rapeseed-derived phytosterols, as plant cholesterol, are essential endogenous regulatory molecules for the human body. They are often used to carry lecithin to provide rigidity to phospholipid membranes and are commonly used in liposome encapsulation.

[0013] As a preferred embodiment of the composite emulsified fat of the present invention, the mass ratio of oleic acid to linoleic acid in the vegetable oil is oleic acid:linoleic acid=(80-83):(7-13).

[0014] As a preferred embodiment of the composite emulsified fat of the present invention, the vegetable oil includes at least one of camellia seed oil, sunflower seed oil and peony seed oil.

[0015] Camellia seed oil refers to a plant oil with geographical characteristics that is rich in linoleic acid, plant flavonoids, oleic acid, etc. These essential fatty acids can accelerate the synthesis of "ceramide", a key component in intercellular lipids, and then fill the cell gaps, strengthen the skin barrier, thereby repairing the skin barrier and increasing the functionality of the epidermis.

[0016] As a preferred embodiment of the composite emulsified fat of the present invention, the sum of the mass of the phytosterols and oryzanol accounts for 15-20% of the total mass of the composite emulsified fat. Both phytosterols and oryzanol are used as the main active ingredients of the emulsified fat structure, and the synergistic components are completely dispersed, which has the function of preventing crystal precipitation and providing an oil phase network structure.

[0017] As a preferred embodiment of the composite emulsified fat of the present invention, the source of oryzanol includes at least one of rice bran oil and germ oil.

[0018] Oryzanol, also known as oryzanol, is an ester substance combined with ferulic acid and phytosterols. Oryzanol has the functions of scavenging free radicals, anti-oxidation, lowering blood lipids, lowering blood sugar, inhibiting the growth of cancer cells, regulating the central nervous system and the cardiac autonomic nerves, and is easily absorbed by the skin. Its molecular structure contains more conjugated double bonds and has the ability to absorb ultraviolet rays. Because oryzanol is oil-soluble and easily absorbed by the skin, and has the effect of promoting blood circulation under the skin, it is considered to be an effective nutrient for the skin. Oryzanol derived from rice bran has a sterol ester structure, which belongs to the antioxidant component grafted active structure. It also has the functionality of providing a rigid wall material for the oily film, providing certain antioxidant properties for the composite emulsified fat.

[0019] As a preferred embodiment of the composite emulsified fat of the present invention, the unsaponifiable matter of vegetable oil includes at least one of unsaponifiable matter of olive oil, unsaponifiable matter of white lupine oil and unsaponifiable matter of sunflower seed oil.

[0020] Olive, also known as Olea europaea, is an oil crop of the genus Olea of ​​the family Oleaceae. It is a famous subtropical fruit tree and an important economic forest tree. The unsaponifiable matter of olive (OLEA EUROPAEA) oil is the active component that cannot be used for saponification, free alcohol, triterpenes, pigments (chlorophyll and carotenoids), tocopherol, oleuropein, sterols, squalene and volatile components, plant squalane, triterpenoid alcohols and phytosterols and other ingredients can help strengthen the skin's natural protective barrier, lock in moisture and reduce moisture evaporation. Squalene is its most prominent functional ingredient, which is similar to the composition of human sebum, is easily absorbed by the skin, and can maintain the normal structure and function of the skin.

[0021] The unsaponifiable matter of olive oil is used as a specific active ingredient to adjust the specific hardness of the composition and provide the overall rigidity of the composition. At the same time, the antioxidant active ingredients contained therein, such as tocopherol, oleuropein, hydroxytyrosol and other molecular active ingredients from olive sources, improve the final product form and crystalline molecular stability of the composition. The unsaponifiable matter of olive oil in the present invention can be derived from olive fruit, olive leaves and the like.

[0022] In a second aspect, the present invention provides a method for preparing the above-mentioned composite emulsified fat, comprising the following steps:

[0023] A portion of the vegetable oil is soaked with phytosterol and oryzanol, stirred at 85-90°C and 60-180r / min until the vegetable oil becomes transparent, allowed to stand and cool to 50-60°C, filtered, and then unsaponifiable matter of the vegetable oil is added to the system to make the total mass of the vegetable oil 100 parts to obtain a composite emulsified fat.

[0024] As a preferred embodiment of the preparation method of the present invention, the filtration is performed in a 200-250 mesh filter cloth.

[0025] In a third aspect, the present invention provides the use of the above-mentioned composite emulsified fat in the preparation of cosmetics.

[0026] In a fourth aspect, the present invention provides a soothing and repairing lotion, comprising the following components in parts by weight per 100 parts by weight: 0.5-5.5 parts of preservatives, 6.5-11.5 parts of polyols, 0.6-5.6 parts of thickeners, 1.5-6.5 parts of aqueous emulsifiers, 3.12-8.12 parts of moisturizers, 6.5-11.5 parts of oils and fats, 2.3-7.3 parts of emulsifiers, and 0.2-5.2 parts of antioxidants, with water supplemented to a total weight of 100 parts; the emulsifier includes the above-mentioned composite emulsifier.

[0027] The present invention combines water, preservatives, polyols, thickeners, aqueous emulsifiers, humectants, oils, emulsifiers and antioxidants into an emulsion, which has good moisturizing, repairing and removing redness effects. The composite emulsified fat in the essence milk acts as both an emulsifier and an oil, and has the effects of emulsification and providing oils.

[0028] As a preferred embodiment of the soothing and repairing lotion of the present invention, the following components are included in every 100 parts by weight: 0.5 parts of preservatives, 6.5 parts of polyols, 0.6 parts of thickeners, 1.5 parts of aqueous emulsifiers, 3.12 parts of moisturizers, 6.5 parts of oils and fats, 2.3 parts of emulsifiers, and 0.2 parts of antioxidants, and water is added to make the total weight of 100 parts.

[0029] As a preferred embodiment of the soothing and repairing lotion of the present invention, the preservative includes at least one of p-hydroxyacetophenone, chlorphenesin, caprylhydroxamic acid, 1,2-pentanediol, sodium salicylate and potassium sorbate.

[0030] As a preferred embodiment of the soothing and repairing lotion of the present invention, the preservatives are chlorphenesin and phenoxyethanol.

[0031] As a preferred embodiment of the soothing and repairing lotion of the present invention, the polyol includes at least one of ethoxydiglycol, 1,2-propylene glycol, glycerol, 1,2-hexanediol, phenylethyl alcohol and 1,3-butylene glycol.

[0032] As a preferred embodiment of the soothing and repairing lotion of the present invention, the polyols are glycerol, 1,3-butylene glycol and 1,2-hexanediol.

[0033] As a preferred embodiment of the soothing repairing lotion of the present invention, the thickener includes at least one of xanthan gum, carbomer, hydroxypropyl cellulose, acryloyldimethyltaurate amine / VP copolymer, acrylate / C10-30 alkyl acrylate cross-linked copolymer and polyacrylate cross-linked polymer-6.

[0034] As a preferred embodiment of the soothing and repairing lotion of the present invention, the thickener is polyacrylate crosspolymer-6 and acryloyldimethyltaurate amine / VP copolymer.

[0035] As a preferred embodiment of the soothing and repairing lotion of the present invention, the aqueous phase emulsifier includes at least one of polyglyceryl-10 laurate, sodium stearoyl glutamate, PEG-40 hydrogenated castor oil and glycerol / inulin lauryl carbamate.

[0036] As a preferred embodiment of the soothing and repairing lotion of the present invention, the aqueous phase emulsifier is glycerin / inulin lauryl carbamate.

[0037] As a preferred embodiment of the soothing and repairing emulsion of the present invention, the moisturizer includes at least one of glyceryl polyether-26 and sodium hyaluronate.

[0038] As a preferred embodiment of the soothing and repairing lotion of the present invention, the oil includes at least one of caprylic / capric triglyceride, polydimethylsiloxane, isononyl isononanoate, sunflower seed oil, soybean oil and squalane.

[0039] As a preferred embodiment of the soothing and repairing lotion of the present invention, the oils are caprylic / capric triglyceride and squalane.

[0040] As a preferred embodiment of the soothing and repairing lotion of the present invention, the emulsifier also includes at least one of polyglyceryl-3 distearate, glyceryl stearate citrate, C20-22 alcohol, C20-22 alcohol phosphate, sucrose polystearate, cetyl palmitate, behenyl alcohol, arachidyl glucoside, glyceryl stearate and PEG-100 stearate.

[0041] As a preferred embodiment of the soothing and repairing lotion of the present invention, the emulsifier is glyceryl stearate and PEG-100 stearate.

[0042] As a preferred embodiment of the soothing and repairing lotion of the present invention, the oil antioxidant includes at least one of VCIP, ferulic acid, ethyl ferulate, monoglyceride ferulate, phenethyl resorcinol, tetrabutyl resorcinol, tocopherol, tocopherol acetate, oryzanol, bisabolol, glycyrrhetinic acid, dipotassium glycyrrhizinate, peptide anmito, bakuchiol, retinol, retinol palmitate, HPR and tocopherol.

[0043] As a preferred embodiment of the soothing and repairing lotion of the present invention, the oil antioxidant is tocopherol.

[0044] In a fifth aspect, the present invention provides a method for preparing the soothing and repairing lotion, comprising the following steps:

[0045] S1. Mix water, preservative, polyol, thickener, aqueous emulsifier and humectant, and heat in a water bath at 80-85° C. to obtain an aqueous phase;

[0046] S2, mixing the oil, emulsifier and antioxidant, and heating in a water bath at 80-90° C. to obtain an oil phase;

[0047] S3. Add the oil phase obtained in step S2 to the water phase obtained in step S1, homogenize for 5-10 minutes, and stir until the temperature drops to room temperature to obtain a soothing and repairing lotion.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. The present invention selects phytosterols, oryzanol, vegetable oils and unsaponifiable matter of vegetable oils as composite emulsified fats, and makes the final product present as a semi-permeable or fully permeable composite emulsified fat with a solid structure through a preparation process of specific temperature control, specific sample addition sequence and specific container modeling, which has oil solubility and water-oil emulsification ability. At the same time, it solves the characteristics of oxidative discoloration and rancidity existing in the above-mentioned single molecule, has long-term stability, and is applied in different cosmetics, bringing better safety, application stability and soothing and repairing skin conditioning to cosmetics.

[0050] 2. The present invention combines water, preservatives, polyols, thickeners, aqueous emulsifiers, humectants, oils, emulsifiers including composite emulsified fats, and antioxidants to form a soothing and repairing lotion, which has good moisturizing and redness-removing effects. The composite emulsified fat acts as both an emulsifier and a skin conditioner in the emulsion, which can bring an emulsifying effect to the emulsion. At the same time, the phytosterols, oryzanol, unsaponifiable matter of plant oils and plant oils in the composite emulsified fats coordinate with each other to synergistically increase the water content of the skin, thereby bringing more excellent moisturizing, soothing and repairing effects to the soothing and repairing lotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 The stability test results of different composite emulsified fats in Example 1 of the present invention;

[0052] Figure 2 The emulsification performance test results of different composite emulsified fats in Example 2 of the present invention;

[0053] Figure 3 The results of observing the particle sizes of different soothing and repairing emulsions in Effect Example 3 of the present invention are as follows;

[0054] Figure 4 The results of measuring transepidermal water loss before and after using different soothing and repairing lotions in Effect Example 4 of the present invention;

[0055] Figure 5 The results of measuring the moisture content of the stratum corneum before and after using different soothing and repairing lotions in Effect Example 4 of the present invention;

[0056] Figure 6 This is a visual picture of the red area on the cheek of the test subject before and after using the soothing repairing lotion in Effect Example 4 of the present invention. DETAILED DESCRIPTION

[0057] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0058] Unless otherwise specified, other materials, reagents, etc. used in the embodiments, comparative examples and effect examples can be obtained from commercial sources.

[0059] Phytosterol 1 is a rapeseed-derived phytosterol purchased from Zhuanglai Holdings (Suzhou) Co., Ltd.;

[0060] Phytosterol 2 is phytosterol derived from rice bran and phytosterol derived from soybean in a mass ratio of 1:1;

[0061] Oryzanol 1 is oryzanol derived from rice bran oil;

[0062] Oryzanol 2 is oryzanol derived from germ oil;

[0063] Vegetable oil 1 is camellia seed oil, the mass ratio of oleic acid to linoleic acid is 80-83:7-13, purchased from Zhuanglai Holdings (Suzhou) Co., Ltd.;

[0064] Vegetable oil 2 is obtained by mixing sunflower seed oil and peony seed oil in a mass ratio of 1:1, the mass ratio of oleic acid to linoleic acid in sunflower seed oil and peony seed oil is 80-83:7-13, and peony seed oil is purchased from Zhuanglai Holdings (Suzhou) Co., Ltd.;

[0065] Vegetable oil 3 is sunflower seed oil, purchased from Zhuanglai Holdings (Suzhou) Co., Ltd.;

[0066] Vegetable oil unsaponifiable matter 1 is olive oil unsaponifiable matter;

[0067] The vegetable oil unsaponifiable matter 2 is obtained by mixing the unsaponifiable matter of white lupin oil and the unsaponifiable matter of sunflower seed oil in a mass ratio of 1:1.

[0068] In the following effect examples, the skin moisture loss tester Tewameter TM 300, the stratum corneum moisture content tester The operation of CM 825 and Visia skin detector was carried out according to the instructions of the instruments.

[0069] Examples 1-8 and Comparative Examples 1-4

[0070] Examples 1-8 and Comparative Examples 1-4 respectively provide a composite emulsified fat and a preparation method thereof. The components and amounts of the composite emulsified fat are shown in Table 1. The preparation method comprises the following steps:

[0071] A portion of the vegetable oils in Table 1 is soaked with phytosterol and oryzanol, stirred at 85-90°C and 60-180r / min until the vegetable oils become transparent, allowed to stand and cool to 50-60°C, filtered, and then unsaponifiable matter of the vegetable oils is added to the system to make the total mass of the vegetable oils 100 parts to obtain a composite emulsified fat, the composite emulsified fat is placed in a specific container, sealed, and cooled to a translucent state at room temperature.

[0072] Table 1 Components and dosages of different composite emulsified fats (parts by mass)

[0073]

[0074]

[0075] Comparative Example 5

[0076] This comparative example provides a composite emulsified fat and a preparation method thereof. The composite emulsified fat comprises phytosterol 1 and vegetable oil 3. The mass ratio of phytosterol 1 to vegetable oil 3 is phytosterol 1: vegetable oil 3 = 8:92. The preparation method is the same as that in Example 1.

[0077] Comparative Example 6

[0078] This comparative example provides a composite emulsified fat and a preparation method thereof. The composite emulsified fat comprises oryzanol 1 and vegetable oil 1, the mass ratio of phytosterol 1 to vegetable oil 1 is phytosterol 1: vegetable oil 4 = 10:90, and the preparation method is the same as that of Example 1.

[0079] Examples 9-10 and Comparative Example 7

[0080] Examples 9-10 and Comparative Example 7 respectively provide a soothing repairing lotion and a preparation method thereof. The components and amounts thereof are shown in Table 2. The preparation method comprises the following steps:

[0081] S1, mixing water, preservatives, polyols, thickeners, aqueous emulsifiers and humectants, heating in a water bath at 80°C to obtain an aqueous phase;

[0082] S2, mixing the oil, emulsifier and antioxidant, and heating in a water bath at 80-90° C. to obtain an oil phase;

[0083] S3. Add the oil phase obtained in step S2 to the water phase obtained in step S1, homogenize for 5-10 minutes, and stir until the temperature drops to room temperature to obtain a soothing repair lotion.

[0084] Table 2 Components and dosage of soothing repair lotion (parts by weight)

[0085]

[0086]

[0087] Effect Example 1

[0088] The composite emulsified fats obtained in Examples 1-8 and Comparative Examples 1-6, as well as the single components, were subjected to stability tests, and the specific scheme is as follows:

[0089] The composite emulsified fats obtained in Examples 1-8 and Comparative Examples 1-6 were placed at room temperature, low temperature (-18°C), high temperature (45°C) and direct sunlight for 90 days, and sections with the same diameter were selected, sliced ​​and judged, and the internal crystallization was observed by lighting. The results are shown in Tables 3 and Figure 1 .

[0090] Table 3 Stability test results of different composite emulsified fats

[0091]

[0092]

[0093]

[0094] As shown in Table 3 and Figure 1 As shown, the composite emulsified fats of Examples 1-8 were stored under different environmental conditions. The stability of Examples 1-4 did not precipitate active substances or cross-linked products, only partially faded under light conditions, and were basically consistent with the raw material state at room temperature under low and high temperature conditions. The stability samples of Comparative Examples 1-6 were observed, and different substances or spherical particles were precipitated under different stability conditions. It can be seen that the stability of the composite emulsified fat is related to the percentage of raw material composition and the process flow, and a composite emulsified fat with good stability can be prepared under specific ratios and components.

[0095] Effect Example 2

[0096] Emulsification experiments were conducted on the composite emulsified fat obtained in Examples 1-4, as well as polyglyceryl-10 oleate (HLB=3.0), stearic acid monoglyceride (HLB=5.5), PEG-6 caprylic / capric triglycerides (HLB=8.5), and polyglyceryl-10 laurate (HLB=15.5) having certain emulsifying properties, and the HLB value of the composite emulsified fat was estimated by the indirect estimation method. The specific scheme is as follows:

[0097] Considering that the compound fat needs to be heated, the fat is set to 5 parts and the water is set to 10 parts. The emulsifier with known emulsifying ability is set to 2 parts for fixed value test. The test parts of Examples 1 and 2 can be selected as 1, 2, and 3 parts for intuitive comparison. By judging the stability of the emulsion after emulsification or the degree of emulsification of the fat into water, the emulsifying ability of the compound emulsified fat can be judged (see Table 4 for specific ratios).

[0098] According to the above described component ratio (Table 4), first weigh the number of water parts in turn, then add oil, and finally add emulsifier. Since some emulsifiers are solid, they need to be mixed with oil for heating and dissolution. It is necessary to ensure that the experimental group and the control group are carried out at the same experimental temperature, and then use the same homogenization speed of 6000r / min. Both can be emulsified into milky white solution. Centrifuge the milky white solution at 3000r / min and 30min to test its centrifugal stability, and then record the test results. The results are shown in Figure 2 .

[0099] Table 4 HLB value test scheme of different composite emulsified fats

[0100]

[0101]

[0102] Depend on Figure 2 It can be seen that the above-mentioned emulsification values ​​have progressive emulsification capabilities, and the composite emulsified ester has the emulsification characteristics of polyglycerol esters, which are water phase emulsification and oil phase partial emulsification; the emulsification whiteness is better than that of short chains (number of C chains ≥ 8), and has the emulsification characteristics of long chain (number of carbon chains ≥ 12) modification. Therefore, it can be concluded that the composite emulsified fat prepared from phytosterols, camellia seed oil, oryzanol, and plant unsaponifiable matter has a certain emulsification ability, and with the increase of the dosage, the emulsification ability gradually increases, and its emulsification ability (HLB) range is roughly determined to be 4-5, indicating that the composite emulsified fat of the present invention is a composite oil with a certain emulsification ability, and the HLB value is 4-5.

[0103] Effect Example 3

[0104] The soothing and repairing lotions obtained in Examples 9-10 and Comparative Example 7 were observed by microscopy to determine the particle size of the lotion. The particle size determines the stability and permeability of the lotion formula system. Lotions with small particle sizes can penetrate deeper into the skin, improving the penetration effect and efficacy.

[0105] Experimental instrument: polarized light microscope

[0106] Experimental steps:

[0107] (1) Polarized light microscope calibration: Push the eyepiece into the lens barrel and rotate the polarizer to adjust the orthogonal polarization. The lines on the analyzer and polarizer should be aligned with the 0° position.

[0108] (2) Place a small amount of the sample to be tested on the slide, press it in the center of the stage, clamp it, bring the objective lens close to the slide, adjust the focal length to 40 times, and observe.

[0109] Results Figure 3 .

[0110] like Figure 3 As shown, by adding a certain amount of composite emulsifying fat, due to its certain interfacial activity, the interaction between molecules is increased, which is more conducive to the formation of small emulsion particles, and has a good improvement on the stability of the emulsion formula system and skin permeability. Therefore, it can be concluded that the composite emulsifying fat of the present invention is a skin conditioning agent with certain interfacial activity and is conducive to the formation of small-particle emulsions.

[0111] Effect Example 4

[0112] The transepidermal water loss and skin moisture content index of the soothing and repairing emulsions obtained in Example 9 and Comparative Examples 7-9 were tested.

[0113] This test was conducted on 32 healthy Chinese subjects aged 18 to 55 (8 males and 24 females). Under normal circumstances, they used the test samples (Example 9, Comparative Examples 7-9) continuously for 28 days, once a day. The moisture content of the stratum corneum, the transepidermal water loss (TEWL) value and the facial red area were measured using an instrument probe before using the product, on the 14th day and the 28th day after using the product.

[0114] The experimental instruments are Tewameter TM 300, a skin moisture loss tester, and a stratum corneum moisture content tester. CM 825 and visia skin detector.

[0115] The test samples were the emulsions obtained in Example 9 and Comparative Examples 7-9.

[0116] The measurement requirement is to take the average value of the test 3 times; the measurement area is below the cheekbones of the face, and each test area is measured 3 times to take the average value, and the change rate is calculated according to the following formula:

[0117] Change rate % = (data Tn-starting value T0) / T0×100

[0118] In the above formula, data Tn is the test value 14 or 28 days after using the product, and the starting value T0 is the test value before use.

[0119] The test process is to cleanse the face → wait quietly in the laboratory for 30 minutes after cleansing (test instructions, informed consent form) → use the instrument to detect the transepidermal water loss under the cheekbones, the moisture content of the stratum corneum, and the red area of ​​the cheeks. The test results are shown in Table 5-6. Figure 4-6 .

[0120] Table 5 Transepidermal water loss measurement results before and after use

[0121]

[0122] Table 6 Measurement results of stratum corneum moisture content before and after use

[0123]

[0124]

[0125] As shown in Table 5-6, Figure 4-6 As shown, after the subjects used the test lotion obtained in Example 9 for 14 days, the moisture content of the stratum corneum on the face of the subjects increased significantly by 35.5%, and the transepidermal water loss decreased significantly by 5%. After 28 days of continuous use, the moisture content of the stratum corneum on the face of the subjects increased significantly by 58.86%, and the transepidermal water loss decreased significantly by 19%, indicating that the soothing and repairing lotion of the present invention has good moisturizing, soothing and repairing effects, and can reduce the loss of skin moisture. The red areas of the cheeks of the subjects were visually compared by the Visia skin detector, and it can be observed that the red area was reduced, which has a significant improvement effect, effectively alleviates the problem of skin redness, and has the effect of repairing the skin.

[0126] For the subjects who applied the emulsion of Comparative Example 7, after continuous use for 28 days, the moisture content of the stratum corneum was only increased by 5.7%, and the transepidermal water loss was reduced by 1.7%. The facial improvement effect was not obvious. The change rate of the moisture content of the stratum corneum of Example 9 was about 10 times that of Comparative Example 7, and the change rate of the transepidermal water loss was about 18 times that of Comparative Example 7. After the subjects applied Comparative Example 8 and Comparative Example 9 for 28 consecutive days, the moisture content of the stratum corneum increased by 16.3% and 13.5%, respectively, and the transepidermal water loss decreased by 6.4% and 3.4%, respectively. The change rate of the stratum corneum moisture content of Example 9 was about 3 times and 4 times that of Comparative Example 8 and Comparative Example 9, respectively, and the change rate of the transepidermal water loss of Example 9 was about 3 times and 6 times that of Comparative Example 8 and Comparative Example 9, respectively. It can be seen that the soothing and repairing emulsion added with the composite emulsified fat of the present invention has a good moisturizing effect, and only when the phytosterols, oryzanol, vegetable oils and unsaponifiable matter of vegetable oils in the composite emulsified fat are within a specific ratio range can the soothing, repairing and moisturizing effects of the cosmetics be synergistically improved. Therefore, the cosmetics containing the composite emulsified fat of the present invention can play a better moisturizing, soothing and repairing effect.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A composite emulsified fat, characterized in that: Every 100 parts by mass of the composite emulsified fat comprises the following components in parts by mass: 4-10 parts of phytosterols, 6-15 parts of oryzanol, and 5-20 parts of unsaponifiable vegetable oils and fats, and the vegetable oils and fats are supplemented to make the total parts by mass 100 parts.

2. The composite emulsified fat according to claim 1, characterized in that Every 100 parts by mass of the composite emulsified fat comprises the following components in parts by mass: 5-8 parts of phytosterols, 8-10 parts of oryzanol, and 10-15 parts of unsaponifiable vegetable oils and fats, and the vegetable oils and fats are supplemented to a total of 100 parts by mass.

3. The composite emulsified fat according to claim 1 or 2, characterized in that The source of the phytosterols includes at least one of rapeseed, rice bran and soybean.

4. The composite emulsified fat according to claim 1 or 2, characterized in that The mass ratio of oleic acid to linoleic acid in the vegetable oil is oleic acid:linoleic acid=(80-83):(7-13).

5. The composite emulsified fat according to claim 1 or 2, characterized in that The sum of the mass of the phytosterols and oryzanol accounts for 10-20% of the total mass of the composite emulsified fat.

6. The composite emulsified fat according to claim 1 or 2, characterized in that The source of oryzanol includes at least one of rice bran oil and germ oil.

7. The composite emulsified fat according to claim 1 or 2, characterized in that The vegetable oil unsaponifiable matter includes at least one of olive oil unsaponifiable matter, white lupine oil unsaponifiable matter and sunflower seed oil unsaponifiable matter.

8. The method for preparing the composite emulsified fat according to any one of claims 1 to 7, characterized in that: The following steps are involved: A portion of the vegetable oil is soaked with phytosterol and oryzanol, stirred at 85-90°C and 60-180r / min until the vegetable oil becomes transparent, allowed to stand and cool to 50-60°C, filtered, and then unsaponifiable matter of the vegetable oil is added to the system to make the total mass of the vegetable oil 100 parts to obtain a composite emulsified fat.

9. Use of the composite emulsified fat according to any one of claims 1 to 7 in the preparation of cosmetics.

10. A soothing and repairing lotion, characterized in that: The following components are included in every 100 parts by weight: 0.5-5.5 parts of preservatives, 6.5-11.5 parts of polyols, 0.6-5.6 parts of thickeners, 1.5-6.5 parts of aqueous emulsifiers, 3.12-8.12 parts of moisturizers, 6.5-11.5 parts of oils and fats, 2.3-7.3 parts of emulsifiers, 0.2-5.2 parts of oil antioxidants, and water is added to make the total weight parts 100; the emulsifier includes the composite emulsified fat described in any one of claims 1 to 7.

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