CN115068399A

CN115068399A - Pure natural makeup pre-emulsion and preparation method thereof

Info

Publication number: CN115068399A
Application number: CN202210873158.4A
Authority: CN
Inventors: 田勇; 沈洁; 袁菊懋; 田云才; 申福澈; 江忠梅; 余涛; 徐桂芬; 张金女
Original assignee: Shanghai Zhenchen Cosmetics Co Ltd
Current assignee: Shanghai Zhenchen Cosmetics Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-09-20

Abstract

The application discloses a pure natural makeup pre-emulsion and a preparation method thereof, belongs to the technical field of cosmetics, and relates to the pure natural makeup pre-emulsion, wherein the pure natural makeup pre-emulsion comprises a water phase compound and an oil phase compound according to 100 parts of total mass, the water phase compound comprises a water phase solvent, a humectant, a first preservative, a viscosity regulator, a chelating agent and an anti-allergic effect component, the oil phase compound comprises an oil phase solvent, an antioxidant, a second preservative, an elastomer and an emulsifier, and the oil phase solvent at least comprises dioctyl carbonate. The raw materials adopted by the pure natural pre-make-up milk are all plant sources or natural mineral sources, so that the pre-make-up milk is environment-friendly, safe, pollution-free, free of heavy metal components, safe and healthy.

Description

Pure natural makeup pre-emulsion and preparation method thereof

Technical Field

The application belongs to the technical field of cosmetics, and particularly relates to a pure natural makeup pre-emulsion and a preparation method thereof.

Background

The pre-makeup emulsion belongs to one of color makeup, is mainly used before makeup to make up the defects of uneven and dark skin color, can modify the skin by local use, presents sparkling and translucent natural luster, and is mostly milky white liquid or transparent liquid.

With the trend of 'pure beauty cosmetics' and global sustainable development, the trend of protecting the environment and the ocean from pollution is the modern and future cosmetics, and according to the investigation of the relevant committee of the European chemical administration, the substances D4 (octamethylcyclotetrasiloxane), D5 (decamethylcyclopentasiloxane) and D6 (decamethylcyclohexasiloxane) contained in the cosmetics really have influence on the environment.

Therefore, it is necessary to replace the existing chemical components with natural-derived components, especially plant-derived components, and natural-derived pre-makeup milk is mainly hindered in the replacement of volatile or nonvolatile silicone oil, silicone elastomer, preservative, emulsifier, and chelating agent, so that it is difficult to achieve a pure natural grade.

Disclosure of Invention

The first purpose of the present application is to provide a pure natural makeup pre-emulsion, all the raw materials of which are natural plant sources or mineral sources, which has less irritation to the skin of a user and has moisturizing and moistening effects.

The second purpose of the application is to provide a preparation method of the pure natural pre-makeup emulsion, the method is simple and convenient to operate, chemical components used in the preparation process are all natural sources, and secondary pollution of substances such as grease or preservatives to the environment is avoided.

The first aspect of the application provides a pure natural makeup pre-emulsion, which comprises, by 100 parts of total mass, a water phase compound and an oil phase compound, wherein the water phase compound comprises 50-65 parts of a water phase solvent, 15-22 parts of a humectant, 0.5-1 part of a first preservative, 0.5-1 part of a viscosity regulator, 0.02-0.5 part of a chelating agent and 0-5 parts of an antiallergic effective component, the oil phase compound comprises 10-20 parts of an oil phase solvent, 0.05-0.5 part of an antioxidant, 0.1-0.5 part of a second preservative, 1-5 parts of an elastomer and 0.5-5 parts of an emulsifier, and the oil phase solvent at least comprises dioctyl carbonate.

According to one embodiment of the present application, the humectant is selected from the group consisting of glycerin, sodium hyaluronate, 1, 3-propanediol, 1, 2-hexanediol, trehalose, tremella polysaccharide, lodestone, betaine, urea, and one or more combinations thereof.

According to one embodiment of the present application, the first preservative is selected from the group consisting of 1, 2-pentanediol, cinnamic acid, magnolia bark extract, benzoic acid, sodium benzoate, sorbitan caprylate, glycerol caprylate and one or more combinations thereof.

According to one embodiment of the application, the viscosity modifier is selected from sodium chloride or magnesium sulfate heptahydrate.

According to one embodiment of the present application, the antiallergic functional ingredient is selected from the group consisting of a chamomile extract, bisabolol, dipotassium glycyrrhizinate, a camellia extract, a rhodiola rosea extract, an aloe extract, a purslane extract, a centella asiatica extract, and one or more combinations thereof.

According to an embodiment of the present application, the oil phase solvent further comprises at least one or more of jojoba oil, vegetable squalane, sunflower seed oil, castor oil, meadowfoam seed oil, coconut oil, shea butter, grape seed oil, macadamia nut oil, olive oil, palm oil, cocoa butter, jojoba fat, glycolipids, octyldodecanol, caprylic/capric triglyceride (GTCC), coco-caprylic/capric triglyceride, C9-12 alkane/coco-caprylic/capric acid, polyglycerin compounds.

According to one embodiment of the application, the antioxidant is selected from the group consisting of vitamin C, vitamin C glucoside, tocopherol acetate, ascorbyl palmitate, retinol palmitate and one or more combinations thereof.

According to one embodiment of the present application, the second preservative is selected from the group consisting of 1, 2-pentanediol, magnolia bark extract, anisic acid, cinnamic acid, glyceryl caprylate, sorbitan caprylate, and one or more combinations thereof.

According to one embodiment of the present application, the emulsifier comprises a primary emulsifier and a secondary emulsifier,

wherein the main emulsifier is selected from polyglyceryl-2 dipolyhydroxystearate and/or polyglyceryl-3 diisostearate,

wherein the auxiliary emulsifier is selected from magnesium stearate, zinc stearate, calcium stearate, aluminum stearate, glyceryl stearate, polyglyceryl-4 isostearate, sorbitan oleate, glyceryl oleate, polyglyceryl-2 caprate oil, polyglyceryl-6 ester, polyglyceryl-3 polyricinoleate, polyglyceryl-6 polyricinoleate and one or more combinations thereof.

In a second aspect, the present application provides a method for preparing a pure natural makeup pre-emulsion, comprising the following steps:

uniformly mixing and emulsifying an aqueous phase solvent, a humectant, a viscosity regulator, a chelating agent and an antiallergic functional component to obtain an aqueous phase mixed solution;

mixing an oil phase solvent, an antioxidant, a second preservative, an elastomer and an emulsifier to obtain an oil phase mixed solution;

and mixing the water phase mixed solution and the oil phase mixed solution, continuously emulsifying, adding a first preservative, uniformly mixing, and performing a subsequent treatment process to obtain the pure natural pre-cosmetic emulsion.

In summary, the technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

(1) the present disclosure relates to a pure natural pre-makeup emulsion, wherein raw materials adopted by the pure natural pre-makeup emulsion are all plant sources or natural mineral sources, such that the pre-makeup emulsion provided by the present invention is environment-friendly, safe, pollution-free, free of heavy metal components, safe and healthy.

(2) The present disclosure relates to a pure natural makeup pre-emulsion, which is an oil-in-water system (O/W type) having effects of moisturizing and soothing sensitive muscles.

(3) The preparation method of the pure natural makeup pre-emulsion solves the problems of secondary pollution of preservatives and unnatural sources of chemical components, and applies the plant elastomer, the plant oil replacing D4, D5 and D6 oil, the chelating agent replacing EDTA-2NA, the plant source emulsifier replacing PEG/PPG and the plant source preservative into a formula together, so that the performance, skin feel and stability of the original product are not influenced, the sustainable development strategy of pure makeup, blue ocean and green home is more met, and the pure natural makeup pre-emulsion has a wide application prospect.

Drawings

In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below; it is obvious that the drawings described below relate only to some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from the drawings without inventive effort.

Fig. 1 is a schematic flow chart of a preparation method of a pure natural pre-makeup emulsion provided in an embodiment of the present application.

Detailed Description

In order to make the application purpose, technical solution and beneficial technical effects of the present application clearer, the present application is further described in detail with reference to the following embodiments. It should be understood that the embodiments described in this specification are only for the purpose of explaining the present application and are not intended to limit the present application.

For the sake of brevity, only some numerical ranges are explicitly disclosed herein. However, any lower limit may be combined with any upper limit to form ranges not explicitly recited; and any lower limit may be combined with any other lower limit to form a range not explicitly recited, and similarly any upper limit may be combined with any other upper limit to form a range not explicitly recited. Also, although not explicitly recited, each point or individual value between endpoints of a range is encompassed within the range. Thus, each point or individual value can form a range not explicitly recited as its own lower or upper limit in combination with any other point or individual value or in combination with other lower or upper limits.

In the description of the present application, it is to be noted that, unless otherwise specified, "above" and "below" are inclusive of the present number, and "plural" of "one or more" means two or more.

The prior pre-makeup milk contains a large amount of non-natural chemical components which are used in cosmetics and can stimulate the skin of a user on one hand and influence the environment to different degrees in the preparation process of the cosmetics on the other hand. Specifically, the non-natural chemical components in the existing pre-makeup milk mainly comprise five parts: volatile/nonvolatile silicone oil (mostly silicon-containing compounds, commonly comprising D4 grease, namely octamethylcyclotetrasiloxane, D5 grease, namely decamethylcyclopentasiloxane, and D6 grease, namely dodecamethylcyclohexasiloxane), silicone elastomer, preservative (commonly comprising phenoxyethanol and methyl ester compounds), emulsifier (mostly PEG or PPG), and chelating agent (mostly EDTA-2 NA). It is therefore necessary to replace existing chemical components by components of natural origin, in particular components of plant origin.

The embodiment of the application provides a pure natural makeup pre-emulsion which comprises, by 100 parts of total mass, a water phase compound and an oil phase compound, wherein the water phase compound comprises 50-65 parts of a water phase solvent, 15-22 parts of a humectant, 0.5-1 part of a first preservative, 0.5-1 part of a viscosity regulator, 0.02-0.5 part of a chelating agent and 0-5 parts of an antiallergic effective component, the oil phase compound comprises 10-20 parts of an oil phase solvent, 0.05-0.5 part of an antioxidant, 0.1-0.5 part of a second preservative, 1-5 parts of an elastomer and 0.5-5 parts of an emulsifier, and the oil phase solvent at least comprises dioctyl carbonate.

The dicaprylyl carbonate is a clear colorless liquid, almost odorless and plant-derived grease, can be dissolved with most of cosmetic grease due to extremely high dispersion rate, has good compatibility with skin, has dry and fine skin feel when used, is easy to spread on the surface of the skin, has good air permeability, and is added into an oil phase compound as a main oil phase solvent.

According to embodiments herein, the aqueous solvent is selected from, but not limited to, deionized water, preferably secondary deionized water. The aqueous phase solvent has the function of fully dissolving or dispersing all components in the aqueous phase compound, the selection range meets the latest cosmetic standard catalogue, and the deionized water can meet the requirement and avoid introducing other unnecessary components. The purity of the secondary deionized water is higher than that of the common deionized water when the conductivity of the water at the temperature of 25 ℃ is less than or equal to 0.1mS/m (namely the conductivity is less than or equal to 1 mu S/cm) specified in GB/T6682-2008 analytical laboratory Water national Standard.

According to an embodiment of the present application, the humectant is selected from the group consisting of glycerin, sodium hyaluronate, 1, 3-propanediol, 1, 2-hexanediol, trehalose, tremella polysaccharide, lodestone, betaine, urea, and one or more combinations thereof.

According to an embodiment of the application, the first preservative is selected from the group consisting of 1, 2-pentanediol, cinnamic acid, magnolia bark extract, benzoic acid, sodium benzoate, sorbitan caprylate, glycerol caprylate and one or more combinations thereof.

Although the traditional preservative such as phenoxyethanol or methyl ester compounds have a certain preservative effect, the traditional preservative has certain toxicity and irritation to the skin, and the preservative selected by the application is selected from natural green compounds with bacteriostatic or preservative functions, so that the irritation of the pre-makeup emulsion to the skin is reduced.

According to an embodiment of the application, the viscosity modifier is selected from sodium chloride or magnesium sulfate heptahydrate.

According to an embodiment of the application, the chelating agent is selected from sodium phytate.

The existing chelating agent is usually selected from EDTA-2NA, can form a stable chelate with unstable divalent metal ions, avoids forming precipitates or causing the instability of the pre-makeup emulsion, but EDTA-2NA is harmful to the environment and pollutes water and soil, so that unnecessary application of the chelating agent is reduced as much as possible. Sodium phytate is an important pure natural green compound, and the most remarkable characteristic is that the sodium phytate forms a chelate with metal ions and can be used for replacing the traditional EDTA-2 NA.

According to an embodiment of the present application, the antiallergic functional ingredient is selected from the group consisting of chamomile extract, bisabolol, dipotassium glycyrrhizinate, camellia extract, rhodiola rosea extract, aloe extract, purslane extract, centella asiatica extract, and one or more combinations thereof.

According to an embodiment of the present application, the oil phase solvent further comprises at least one or more of jojoba oil, vegetable squalane, sunflower seed oil, castor oil, meadowfoam seed oil, coconut oil, shea butter, grape seed oil, macadamia nut oil, olive oil, palm oil, cocoa butter, jojoba fat, glycolipids, octyldodecanol, caprylic/capric triglyceride (GTCC), cocoyl-caprylic/capric triglyceride, C9-12 alkane/cocoyl-caprylic/capric acid, polyglycerin compounds.

The three substances, octyldodecanol, caprylic/capric triglyceride (GTCC), cocol-caprylic/capric triglyceride, can be obtained synthetically, but are also present in small amounts in plants, the plant source being chosen in this application.

According to an embodiment of the application, the antioxidant is selected from the group consisting of vitamin C, vitamin C glucoside, tocopherol acetate, ascorbyl palmitate, retinol palmitate and one or more combinations thereof.

According to an embodiment of the application, the second preservative is selected from the group consisting of 1, 2-pentanediol, magnolia bark extract, anisic acid, cinnamic acid, glyceryl caprylate, sorbitan caprylate, and one or more combinations thereof.

According to an embodiment of the present application, the elastomer is selected from, but not limited to, starch and derivatives thereof. In some embodiments, the elastomer is selected from one or more of pea starch, mung bean starch, corn starch, wheat starch, sweet potato starch, tapioca starch, preferably tapioca starch and/or sweet potato starch.

The organic silicon elastomer is a high molecular weight organic compound mainly prepared from polysiloxane, and has the effects of obviously improving the smearing feeling and providing smoothness when being used in cosmetics. The starch and the derivatives thereof contain a large amount of amylose structures and amylopectin structures, and when the content of amylose in the starch is higher, the starch is more beneficial to integrally form a three-dimensional network structure. The three-dimensional net structure can enhance the gel strength of the starch product and replace a silicone elastomer. Commonly, starches with a high amylose structure content are legume starches, including but not limited to pea starches, mung bean starches, cereal starches, including but not limited to corn starches, wheat starches, and potato starches, including but not limited to sweet potato starches, tapioca starches. In the formula of the cosmetic, proper starch types are selected according to the matte and bright condition, the elasticity and the like of the starch, and the natural ingredients replacing the silicone elastomer in a gel state are prepared.

According to an embodiment of the present application, the emulsifier comprises a primary emulsifier and a secondary emulsifier,

wherein the auxiliary emulsifier is selected from magnesium stearate, zinc stearate, calcium stearate, aluminum stearate, glyceryl stearate, polyglyceryl-4 isostearate, sorbitan oleate, glyceryl oleate, polyglyceryl-2 caprate oleum Armeniacae amarum polyglycerol-6 esters, polyglyceryl-3 polyricinoleate, polyglyceryl-6 polyricinoleate and one or more combinations thereof.

The traditional emulsifier is mostly selected from PEG or PPG: PEG and polyethylene glycol have good water solubility and good intermiscibility with a plurality of organic components, and can be used as an emulsifier in the cosmetic industry; the PPG contains propylene oxide condensate as chemical component, and can be used in cosmetic for caring skin and lubricating. However, PEG and PPG have irreversible effects on the environment during production and some stimulation of sensitive muscles during use.

The glycerol molecules have three functional groups, under proper conditions, the glycerol molecules can mutually dehydrate and condense to generate polyglycerol, and the polyglycerol compound belongs to ethers containing hydroxyl groups, has higher polymerization degree and viscosity, can play a thickening role when being applied to cosmetics, can play a certain moisturizing effect at the same time, is easy to clean, and can be used for replacing the traditional emulsifier. The main emulsifier has the characteristics of green and safety, and has better compatibility with skin, so the main emulsifier is used in the pre-make-up emulsion.

Fig. 1 is a schematic flow chart of a preparation method of a pure natural pre-makeup emulsion provided in an embodiment of the present application. As shown in fig. 1, the present application also provides a preparation method of a pure natural pre-makeup emulsion, which includes the following steps:

s100, uniformly mixing and emulsifying an aqueous phase solvent, a humectant, a viscosity regulator, a chelating agent and an antiallergic functional component to obtain an aqueous phase mixed solution;

s200, mixing an oil phase solvent, an antioxidant, a second preservative, an elastomer and an emulsifier to obtain an oil phase mixed solution;

and S300, mixing the water phase mixed liquor and the oil phase mixed liquor, continuously emulsifying, adding a first preservative, uniformly mixing, and performing a subsequent treatment process to obtain the pure natural pre-makeup emulsion.

According to an embodiment of the present disclosure, the process of uniformly mixing the aqueous phase solvent, the humectant, the viscosity regulator, the chelating agent, and the anti-allergic functional component in step S100 includes a stirring operation, which may be, but not limited to, physical shaking, ultrasonic shaking, magnetic bar stirring, mechanical stirring, and the like. According to some embodiments of the present application, the stirring operation in step S100 is performed by selecting a mechanical stirring manner, wherein the speed of the mechanical stirring is 3000rpm to 4000 rpm.

According to the embodiment of the present application, the emulsification in step S100 includes a heating operation, and the heating temperature is 60 ℃ to 70 ℃.

According to the embodiment of the present application, the mixing of the oil phase solvent, the antioxidant, the second preservative, the elastomer, and the emulsifier in step S200 includes a heating operation to a temperature of 60 ℃ to 70 ℃.

According to the embodiment of the application, in step S300, after the operation of mixing the water phase mixed solution and the oil phase mixed solution and before the operation of adding the first preservative thereto, the temperature is reduced to room temperature.

According to an embodiment of the present application, the subsequent processing in step S300 includes, but is not limited to, discharging, canning, and storing.

The above summary of the present application is not intended to describe each disclosed embodiment or every implementation of the present application. The following description more particularly exemplifies illustrative embodiments. At various points throughout this application, guidance is provided through a list of embodiments that can be used in various combinations. In each instance, the list is merely a representative group and should not be construed as exhaustive.

Examples

The present disclosure is more particularly described in the following examples that are intended as illustrations only, since various modifications and changes within the scope of the present disclosure will be apparent to those skilled in the art. Unless otherwise indicated, all parts, percentages, and ratios reported in the following examples are on a weight basis, and all reagents used in the examples are commercially available or synthesized according to conventional methods and can be used directly without further treatment, and the equipment used in the examples is commercially available.

Example 1

Preparing a pure natural makeup pre-emulsion by the following steps:

s100, adding an aqueous phase solvent, a humectant, a viscosity regulator, a chelating agent and an antiallergic functional component into an emulsifying pot, stirring at 3000-4000 rpm within the temperature range of 60-70 ℃, uniformly mixing and emulsifying to obtain an aqueous phase mixed solution;

s200, adding the oil phase solvent, the antioxidant, the second preservative, the elastomer and the emulsifier into a stirring kettle, stirring at the temperature of 60-70 ℃, and uniformly dispersing all the components to obtain an oil phase mixed solution;

s300, maintaining the temperature within the range of 60-70 ℃, slowly adding the oil-phase mixed liquor into the water-phase mixed liquor, continuously and uniformly stirring for 15-30 min at the speed of 3000-4000 rpm to mix the water-phase mixed liquor and the oil-phase mixed liquor, then cooling to room temperature, adding a first preservative, uniformly stirring, and carrying out subsequent operations of discharging, canning, storing and the like to obtain the pure natural pre-makeup milk.

The prepared pure natural pre-makeup emulsion comprises the following components in parts by weight:

a pure natural makeup front milk comprises 77.4 percent of water phase compound and 22.6 percent of oil phase compound according to weight percentage.

Wherein the water phase compound comprises 55.88 parts of deionized water, 15 parts of glycerol, 2 parts of sodium hyaluronate, 3 parts of 1, 3-propylene glycol, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glycerol caprylate, 0.5 part of sodium chloride and 0.02 part of sodium phytate; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of plant squalane, 2 parts of shea butter, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of tapioca starch, 3 parts of polyglycerol-2 dipolyhydroxystearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Example 2

A pure natural makeup pre-emulsion is prepared by the same method as example 1, and comprises 81.9% of a water-phase compound and 18.1% of an oil-phase compound according to weight percentage.

Wherein the water phase compound comprises 60.38 parts of deionized water, 15 parts of glycerol, 2 parts of sodium hyaluronate, 3 parts of 1, 3-propylene glycol, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glycerol caprylate, 0.5 part of magnesium sulfate heptahydrate and 0.02 part of sodium phytate; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of plant squalane, 2 parts of shea butter, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of cassava starch and 0.5 part of polyglycerol-2 dipolyhydroxystearate.

Example 3

The preparation method of the pure natural makeup pre-emulsion is the same as that of the example 1, and the pure natural makeup pre-emulsion comprises 80.9% of water-phase compound and 19.1% of oil-phase compound in percentage by weight.

Wherein the water phase compound comprises 59.38 parts of deionized water, 15 parts of glycerol, 2 parts of sodium hyaluronate, 3 parts of 1, 3-propylene glycol, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glycerol caprylate, 0.5 part of sodium chloride and 0.02 part of sodium phytate; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of plant squalane, 2 parts of shea butter, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of cassava starch and 1.5 parts of polyglycerol-3 diisostearate.

Example 4

A pure natural makeup pre-emulsion is prepared by the same method as example 1, and comprises 77.4% of water-phase compound and 22.6% of oil-phase compound according to weight percentage.

Wherein the water phase compound comprises 52.88 parts of deionized water, 10 parts of glycerol, 2 parts of sodium hyaluronate, 5 parts of water-locking magnetite, 3 parts of betaine, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glyceryl caprylate, 0.5 part of sodium chloride, 0.02 part of sodium phytate, 2 parts of chamomile extract and 1 part of bisabolol; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of plant squalane, 2 parts of shea butter, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of tapioca starch, 3 parts of polyglycerol-2 dipolyhydroxystearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Example 5

Wherein the water phase compound comprises 55.28 parts of deionized water, 5 parts of glycerol, 2 parts of sodium hyaluronate, 3 parts of tremella polysaccharide, 10 parts of water-locking magnet, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glyceryl caprylate, 0.5 part of sodium chloride, 0.02 part of sodium phytate, 0.5 part of purslane extract and 0.1 part of centella extract; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of jojoba oil, 2 parts of grape seed oil, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of tapioca starch, 3 parts of polyglycerol-3 diisostearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Example 6

Wherein the water phase compound comprises 55.58 parts of deionized water, 15 parts of glycerol, 2 parts of sodium hyaluronate, 3 parts of 1, 3-propylene glycol, 0.3 part of 1, 2-pentanediol, 0.3 part of glycerol caprylate, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.5 part of sodium chloride, 0.02 part of sodium phytate, 0.1 part of dipotassium glycyrrhizinate, 0.1 part of camellia extract and 0.1 part of rhodiola rosea extract; the oil phase compound comprises 10 parts of dioctyl carbonate, 3 parts of octyl dodecanol, 2 parts of C9-12 alkane/coconut oil alcohol-caprylic acid/decanoate, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of cassava starch, 3 parts of polyglycerol-2 dipolyhydroxystearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Example 7

Wherein the water phase compound comprises 5 parts of glycerin, 5 parts of sodium hyaluronate, 10 parts of water-locking magnetite, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glycerol caprylate, 0.5 part of sodium chloride, 0.02 part of sodium phytate, 52.88 parts of aloe extract, 2 parts of chamomile extract and 1 part of bisabolol; the oil phase compound comprises 10 parts of dioctyl carbonate, 2 parts of macadamia nut oil, 3 parts of palm oil, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of tapioca starch, 3 parts of polyglycerol-3 diisostearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Example 8

Wherein the water phase compound comprises 3 parts of glycerin, 2 parts of sodium hyaluronate, 15 parts of water-locking magnetite, 0.3 part of 1, 2-pentanediol, 0.1 part of sodium benzoate, 0.3 part of sorbitan caprylate, 0.3 part of glycerin caprylate, 0.5 part of sodium chloride, 0.02 part of sodium phytate and 55.88 parts of aloe extract; the oil phase compound comprises 10 parts of dioctyl carbonate, 2 parts of white chinlon oil, 3 parts of caprylic/capric triglyceride, 0.1 part of tocopherol, 0.5 part of 1, 2-pentanediol, 2 parts of tapioca starch, 3 parts of polyglycerol-3 diisostearate, 0.5 part of magnesium stearate and 1.5 parts of polyglycerol-4 isostearate.

Comparative example 1

A commercially available pre-makeup emulsion is selected, and the main non-natural chemical components are as follows: volatile/nonvolatile silicone oil (D4 oil or D5 oil), synthetic oil, polymethylsilsesquioxane, organosilicon elastomer, antiseptic (phenoxyethanol or methyl ester compound), emulsifier (PEG), and chelating agent (EDTA-2 NA).

Test section

The stability of the pre-makeup milk samples prepared in examples 1 to 8 and comparative example 1 was measured by weighing the same amount of each sample. Because the pre-makeup emulsion needs to be stored for a long time in different environments and needs to be transported and placed on a shelf according to market demands, the stability of the pre-makeup emulsion needs to be tested at different temperatures and after centrifugation. And simultaneously, the using effect of the pre-makeup emulsion is tested (moisturizing performance test and anti-allergy performance test).

1. Stability test

The test principle is as follows: the pure natural pre-makeup emulsion comprises a water phase compound and an oil phase compound, and the stability of the pure natural pre-makeup emulsion is different after the components are combined and proportioned, and in addition, the pure natural pre-makeup emulsion needs to be stored in different environments and states for a long time, so that the pure natural pre-makeup emulsion is required to have the capability of being stored for a long time in summer or winter, or does not generate physical and chemical changes in dynamic environments such as transportation or shelf placement, and the phenomena of oil seepage, water precipitation, coarse grains, emulsion breaking and the like do not occur, so that the stability test of the pure natural pre-makeup emulsion is carried out under the conditions of high temperature, low temperature and centrifugation.

The method comprises the following steps of testing stability under high-temperature and low-temperature environments: the same amount of the pre-makeup milk samples prepared in examples 1 to 8 and comparative example 1 were weighed, and the stability test was carried out in a high-temperature and low-temperature environment by using the methods of (i) to (iv) as the reference numerals.

Putting the pre-made milk sample in an electric heating constant-temperature incubator at 40-50 ℃ for 30-50 days, taking out the pre-made milk sample, putting the pre-made milk sample in a room-temperature environment to restore the pre-made milk sample to the room temperature, and observing the state of the sample.

Secondly, placing the pre-makeup milk sample in an incubator, changing the temperature in the incubator every 4 hours (the temperature can be changed back and forth frequently between 0 ℃, 10 ℃, 20 ℃, 30 ℃, 40 ℃ and 50 ℃, or other temperatures can be selected), realizing circulation every 24 hours, repeating the operation for 15-30 days, taking out the pre-makeup milk sample, placing the pre-makeup milk sample in a room temperature environment to restore the pre-makeup milk sample to the room temperature, and observing the state of the sample.

Thirdly, placing the pre-makeup milk sample in an incubator, respectively storing the pre-makeup milk sample for 24 hours at the three temperatures of-5 ℃, room temperature and 40 ℃, circularly repeating the steps for 3 times, and observing the state of the sample.

And fourthly, placing the pre-makeup milk sample in an incubator, respectively storing the pre-makeup milk sample at the temperature of minus 5 ℃, room temperature and 40 ℃ for 1 week, and observing the state of the sample.

Testing procedure of stability test after centrifugation: respectively weighing equal amounts of the pre-makeup milk samples prepared in the examples 1-8 and the comparative example 1, marking, placing the pre-makeup milk samples in a centrifuge, centrifuging for 30min at the rotating speed of 2000rpm-4000rpm, taking out, and observing the layering condition of the pre-makeup milk samples.

The test results are shown in table 1.

Table 1 stability test results

Sample (I)	Cold-resistant	Heat resistance	Centrifugation
				Example 1	Stabilization	Stabilization	Without separation and delamination
Example 2	Stabilization	Oil-water stratification occurs	Oil-water separation
				Example 3	Stabilization	Oil-water separation	Without separation and delamination
Example 4	Stabilization	Stabilization of	Without separation and delamination
				Example 5	Stabilization	Stabilization	Without separation and delamination
Example 6	Stabilization	Stabilization of	Without separation and delamination
				Example 7	Stabilization	Stabilization of	Without separation and delamination
Example 8	Stabilization of	Stabilization	Without separation and delamination
				Comparative example 1	Stabilization	Stabilization	Without separation and delamination

As can be seen from table 1: the pure natural makeup pre-milks prepared in examples 1 to 8 have good stability under low temperature conditions, the pure natural makeup pre-milks prepared in examples 1 and 4 to 8 are relatively stable under high temperature conditions, and the pure natural makeup pre-milks prepared in examples 1 and 3 to 8 are free of layering after centrifugation, so that the stability is good, and the selection and the proportion of the components in the pure natural makeup pre-milk are basically feasible. However, the reason why the oil-water separation occurred after the pure natural pre-makeup emulsions prepared in examples 2 and 3 were stored at a high temperature of 40 ℃ and the oil-water separation occurred also after centrifugation in example 2 is presumed to be due to the fact that the emulsifiers added in examples 2 and 3 were too single; in addition, the polyglycerol plant-derived emulsifier is not comparable in emulsifying ability to the PEG emulsifier in an equivalent amount, and therefore is added in a larger amount than the PEG emulsifier, and the emulsifier added in examples 2 and 3 is used in a smaller amount, which is also presumed to be one of the reasons why the emulsifying effect is not good and the delamination occurs.

2. Test for moisture retention

The testing steps are as follows: the pre-makeup milk samples containing certain moisture and prepared in examples 1-8 and comparative example 1 are placed in a dryer to be dried for 2 hours at 20 ℃, a silica gel drying agent is placed in the dryer, the mass of the pre-makeup milk samples is weighed at regular time, the water retention capacity of the pre-makeup milk samples is obtained by calculating the reduction of the mass of the pre-makeup milk samples, the moisture retention performances of different pre-makeup milk samples are compared, and the higher the mass of the residual moisture is, the better the moisture retention performance of the pre-makeup milk is.

Water retention amount calculation formula: water retention is the mass of residual water/mass of sample.

The results of the moisture retention test are shown in table 2.

Table 2 results of moisture retention test

Sample (I)	Water retention capacity%
		Example 1	17.7％
Example 2	18.9％
		Example 3	21.8％
Example 4	50.1％
		Example 5	54.0％
Example 6	16.7％
		Example 7	60.5％
Example 8	59.3％
		Comparative example 1	45.8％

As is clear from the test data in table 2, the water retentions of the pre-makeup milks prepared in examples 4, 5, 7 and 8 were higher than those of comparative example 1. In examples 4 and 5, a certain amount of water-locking magnetite was added, and in examples 7 and 8, deionized water was replaced with aloe extract, and it is assumed that the reason why both substances enhance the moisturizing and water-locking effects of the pre-makeup milk is possible.

3. Anti-allergic Performance test

The testing principle is as follows: the skin irritation phenotype of cosmetics is mainly manifested by skin inflammation, and early skin inflammation is mainly manifested by telangiectasia, hyperpermeability and edema. Neutrophils, the most abundant circulating leukocytes in the human body, play an important role in acute inflammatory responses because they are rapidly activated and reach the site of inflammation first. Neutrophils also play an innate immune role in zebrafish, and the leukocytes with the highest number in vivo have a series of events in the initial phase of the inflammatory response, such as vasodilation, permeability enhancement of the capillary network, inflammatory mediated release, and the like. When the irritants in the milk before makeup enter into the zebra fish body, inflammatory reaction is induced, and neutrophils generate immune response and migrate to the epidermis of the skin and gather. The test is carried out by adopting transgenic neutral granulocyte green fluorescent zebra fish, when the epidermis is stimulated, the neutral granulocytes gathered on the skin of the zebra fish are obviously increased and can be observed under a fluorescent microscope.

The testing steps are as follows: the zebra fish to be tested were randomly divided into two groups, designated as an experimental group in which the pre-made milk samples prepared in examples 1 to 8 and comparative example 1 were dissolved in water for fish farming and ingested into the zebra fish body in this manner, and a control group in which the zebra fish was fed in a normal manner. The number of neutrophils on the skin of zebrafish (except for neutrophils in the head, heart and blood vessels) was observed over time.

The neutrophil growth rate calculation formula: the neutrophil growth rate was defined as (experimental group-control group)/control group × 100%.

The results of the anti-allergic performance test are shown in table 3.

TABLE 3 antiallergic Performance test

Sample (I)	Rate of increase
		Example 1	188.5％
Example 2	210.0％
		Example 3	190.0％
Example 4	8.0％
		Example 5	11.3％
Example 6	10.9％
		Example 7	0.3％
Example 8	5.7％
		Comparative example 1	310.7％

As can be seen from Table 3, the higher the increase rate of neutrophils represents the greater the irritation, the higher the content of neutrophils, but all the increase rates of examples 1-8 are lower than that of comparative example 1, which indicates that the cosmetic pre-milk of comparative example 1 has stronger irritation to the skin, and the skin irritation of the pure natural cosmetic pre-milk of the present application is far less than that of the existing commercial products. The neutrophil growth rates of examples 4 to 8 did not exceed 15%, and the neutrophil growth rates of examples 7 and 8 were particularly low, presumably due to the addition of aloe extract, chamomile extract, and bisabolol to the pure natural pre-cosmetic milk of example 7, which had strong antiallergic ability; in example 8, aloe vera extract was added, which has a strong soothing ability and has effects of improving the soothing degree and anti-allergy.

While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The pure natural makeup pre-emulsion is characterized by comprising, by 100 parts of total mass, a water phase compound and an oil phase compound, wherein the water phase compound comprises 50-65 parts of a water phase solvent, 15-22 parts of a humectant, 0.5-1 part of a first preservative, 0.5-1 part of a viscosity regulator, 0.02-0.5 part of a chelating agent and 0-5 parts of an antiallergic effective component, the oil phase compound comprises 10-20 parts of an oil phase solvent, 0.05-0.5 part of an antioxidant, 0.1-0.5 part of a second preservative, 1-5 parts of an elastomer and 0.5-5 parts of an emulsifier, and the oil phase solvent at least comprises dioctyl carbonate.

2. The all natural makeup pre-emulsion according to claim 1, wherein said humectant is selected from glycerin, sodium hyaluronate, 1, 3-propanediol, 1, 2-hexanediol, trehalose, tremella polysaccharide, lodestone, betaine, urea, and one or more combinations thereof.

3. The pure natural cosmetic pre-emulsion of claim 1, wherein the first preservative is selected from the group consisting of 1, 2-pentanediol, cinnamic acid, magnolia bark extract, benzoic acid, sodium benzoate, sorbitan caprylate, glyceryl caprylate, and one or more combinations thereof.

4. The all natural cosmetic pre-emulsion according to claim 1, wherein the viscosity modifier is selected from sodium chloride or magnesium sulfate heptahydrate.

5. The all-natural cosmetic pre-emulsion according to claim 1, wherein the antiallergic active ingredient is selected from the group consisting of chamomile extract, bisabolol, dipotassium glycyrrhizinate, camellia extract, rhodiola rosea extract, aloe extract, purslane extract, centella asiatica extract, and one or more combinations thereof.

6. The pure natural makeup fore-milk according to claim 1,

the oil phase solvent also at least comprises one or more of jojoba oil, plant squalane, sunflower seed oil, castor oil, meadowfoam seed oil, coconut oil, shea butter, grape seed oil, macadamia nut oil, olive oil, palm oil, cocoa butter, jojoba fat, glycolipid, octyl dodecanol, caprylic/capric triglyceride (GTCC), coco-caprylic/capric triglyceride, C9-12 alkane/coco-caprylic/capric acid ester and polyglycerin compounds.

7. The all natural cosmetic pre-emulsion of claim 1, wherein the second preservative is selected from the group consisting of 1, 2-pentanediol, magnolia bark extract, anisic acid, cinnamic acid, glyceryl caprylate, sorbitan caprylate, and one or more combinations thereof.

8. The pure natural makeup fore-milk according to claim 1, characterized in that the elastomer is selected from one or more of pea starch, mung bean starch, corn starch, wheat starch, sweet potato starch, tapioca starch, preferably tapioca starch and/or sweet potato starch.

9. The all natural cosmetic pre-emulsion of claim 1, wherein the emulsifier comprises a primary emulsifier and a secondary emulsifier,

wherein the co-emulsifier is selected from magnesium stearate, zinc stearate, calcium stearate, aluminium stearate, glyceryl stearate, polyglyceryl-4 isostearate, sorbitan oleate, glyceryl oleate, polyglyceryl-2 caprate oil, polyglyceryl-6 ester, polyglyceryl-3 polyricinoleate, polyglyceryl-6 polyricinoleate and one or more combinations thereof.

10. A preparation method of a pure natural makeup pre-emulsion is characterized by comprising the following steps:

uniformly mixing and emulsifying an aqueous phase solvent, a humectant, a viscosity regulator, a chelating agent and an antiallergic active ingredient to obtain an aqueous phase mixed solution;

mixing the oil phase solvent, the antioxidant, the second preservative, the elastomer and the emulsifier to obtain an oil phase mixed solution;

and mixing the water phase mixed liquor and the oil phase mixed liquor, continuously emulsifying, adding a first preservative, uniformly mixing, and performing a subsequent treatment process to obtain the pure natural pre-makeup emulsion.