CN112294684A

CN112294684A - Emulsion and preparation method and production equipment thereof

Info

Publication number: CN112294684A
Application number: CN202011206365.1A
Authority: CN
Inventors: 何梦蝶; 张文泽; 黄刚毅
Original assignee: Zhejiang Inglemirepharm's Biotechnology Co ltd
Current assignee: Zhejiang Inglemirepharm's Biotechnology Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-02-02

Abstract

The application relates to the field of skin care products, and particularly discloses an emulsion, a preparation method and production equipment thereof. The emulsion comprises the following components in percentage by weight: the balance of water; 5.01 to 15.5 percent of thickening solvent; 0.01 to 0.5 percent of auxiliary humectant; group A: 2.5 to 17 percent of basic humectant; 0.12 to 2.5 percent of first humectant; 0.22 to 6.6 percent of repairing conditioner; 0.01 to 0.2 percent of thickening agent; 0.01 to 0.2 percent of chelating agent; group B: 4-20% of a first emollient; 1.3-10% of a second emollient; 1-5% of a first emulsifier; 0.2-6% of second emulsifier; 0.12-10% of a first conditioner; group C: 0.01-1% of a second humectant; 0.05-5% of a second conditioner; 0.01-1% of a third conditioner; 0.01-1% of a fourth conditioner; 0.01-1% of a fifth conditioner; 0.01-1% of sixth conditioner; 0.01-1% of seventh conditioning agent; it has the advantage of improving the permeation and absorption effect of the emulsion; in addition, the preparation method has the advantage of improving the permeation and absorption effects of the emulsion.

Description

Emulsion and preparation method and production equipment thereof

Technical Field

The application relates to the field of skin care products, in particular to an emulsion and a preparation method and production equipment thereof.

Background

The lotion is a liquid cream skin care product, has good skin moistening effect and moisturizing effect, and can isolate external dry climate and prevent skin moisture loss too fast.

The emulsion in the related art is obtained by mixing and homogenizing through a common homogenizer, wherein the main components of the emulsion are a humectant, an emollient and a common skin conditioner. The raw material components and the particle size of the homogenized product can directly influence the permeability of the product on the skin, and the good absorption effect on the skin is difficult to achieve only by utilizing the permeability of the raw material components.

Disclosure of Invention

In order to improve the permeation and absorption effect of the emulsion on skin, the application provides the emulsion and a preparation method and production equipment thereof.

In a first aspect, the present application provides the following technical solutions: an emulsion, which comprises the following components in percentage by weight:

the balance of water;

5.01 to 15.5 percent of thickening solvent;

0.01 to 0.5 percent of auxiliary humectant;

group A:

2.5 to 17 percent of basic humectant;

0.12 to 2.5 percent of first humectant;

0.22 to 6.6 percent of repairing conditioner;

0.01 to 0.2 percent of thickening agent;

0.01 to 0.2 percent of chelating agent;

group B:

4-20% of a first emollient;

1.3-10% of a second emollient;

1-5% of a first emulsifier;

0.2-6% of second emulsifier;

0.12-10% of a first conditioner;

group C:

0.01-1% of a second humectant;

0.05-5% of a second conditioner;

0.01-1% of a third conditioner;

0.01-1% of a fourth conditioner;

0.01-1% of a fifth conditioner;

0.01-1% of sixth conditioner;

0.01-1% of seventh conditioning agent;

the repairing conditioner consists of sodium hyaluronate accounting for 0.01-0.4% of the total amount of the emulsion and the balance of conditioning group A; the first conditioning agent consists of hydrogenated lecithin accounting for 0.01 to 1.5 percent of the total amount of the emulsion and the rest conditioning group B; the third conditioner comprises 5-8.5% of Chondrus crispus extract, 15-20% of propylene glycol, 0.001-0.01% of penetration adjuvant, and the balance of water.

By adopting the technical scheme, water and the thickening solvent can form emulsion-shaped texture, the basic moisturizing season, the first moisturizing agent and the second moisturizing agent provide moisturizing effects, and the first emulsifying agent and the second emulsifying agent emulsify and mix the water components and the oil components in the raw materials to form stable emulsion. The skin conditioner has moisturizing and other effects.

Sodium hyaluronate is an acidic mucopolysaccharide, and can achieve the purpose of barrier repair when skin is damaged by retaining skin moisture and preventing the moisture from losing through epidermis, so that the skin does not feel dry after being used. Hydrogenated lecithin is a partial hydrolysate of lecithin, and has a higher hydrophilic ability than lecithin, and can be absorbed by human skin and hair and promote penetration of other nutrients. The aqueous solution of Chondrus crispus extract has good consistency and can be used as thickener for cosmetic; and has anti-inflammatory activity and good promotion of collagen production.

Tests show that after the sodium hyaluronate, the hydrogenated lecithin and the carrageen crispus extract are compounded, the change rate of the skin hydration degree in the same time period can be improved, and the permeation and absorption amount of the emulsion on the skin is improved.

Further, the mass part ratio of the sodium hyaluronate, the hydrogenated lecithin and the carrageen crispus extract is 1: 2: (0.15-0.21).

By adopting the technical scheme, experiments show that the change rate of the skin hydration degree in the same time period can be further improved by the compound usage amount in the optimal range, and the permeation and absorption amount of the emulsion on the skin can be improved.

Further, the adjuvant is one of citric acid, sodium citrate, tartaric acid and sodium tartrate.

By adopting the technical scheme, after the auxiliary agent is matched with the carrageen crispus extract, the change rate of the skin hydration degree in the same time period can be further promoted, and the penetration and absorption amount of the emulsion on the skin can be improved.

Further, the conditioning group B consists of shea butter 0.1-8% of the total amount of the emulsion and tocopherol acetate 0.01-0.5% of the total amount of the emulsion.

By adopting the technical scheme, the first conditioner compounded by the optimized components is formed, the shea butter contains rich unsaturated fatty acid, the moisture retention capability of the skin can be enhanced, and the skin with damaged keratin can be moistened; can adjust the fluidity of the product, improve the viscosity, and improve the sensory quality and the use skin feeling of the product. The tocopherol acetate has good antioxidant effect, is an oil-soluble natural substance and is a good nutritional moistening agent for skin; can make skin feel soft and keep skin moisture. It is known from experiments that the first conditioning agent formed by shea butter, tocopherol acetate and hydrogenated lecithin can further promote the change rate of skin hydration in the same time period.

Further, the mass part ratio of the shea butter, the hydrogenated lecithin and the tocopherol acetate is 10: (2-5): 1.

Further, the fifth conditioner comprises 4-8% of sodium carrageenan, 0.1-0.7% of sea salt, 0.1-0.5% of phenoxyethanol and the balance of water.

By adopting the technical scheme, experiments show that the fifth conditioner preferably prepared from compound ingredients can further improve the change rate of the skin hydration degree in the same time period and improve the penetration and absorption amount of the emulsion on the skin.

Further, the conditioning group A consists of p-hydroxyacetophenone accounting for 0.1-0.8% of the total amount of the emulsion, diglycerin accounting for 0.1-5% of the total amount of the emulsion and the balance of sodium hyaluronate.

By adopting the technical scheme, experiments show that the conditioning group A preferably containing compound components can further improve the change rate of the skin hydration degree in the same time period in a small range, which indicates that the repairing conditioning agent can play a role in moisturizing and does not influence the promotion of osmotic absorption.

In a second aspect, the present application provides the following technical solutions: the preparation method of the emulsion is characterized by comprising the following steps:

s1: mixing water and the raw materials of the group A, starting heating at a stirring speed of 20-50rpm/min, stopping heating when the temperature reaches 78-80 ℃, and preserving heat to obtain a phase A;

s2: mixing the raw materials of group B, and uniformly mixing at 78-80 ℃ and a stirring speed of 20-50rpm/min to obtain phase B;

s3: uniformly dispersing the raw materials of the thickening solvent to obtain the thickening solvent;

s4: mixing the phase B with the phase A, homogenizing at 2500-3000rpm/min for 5-8min, and stirring at 30-50rpm/min for 10-20 min; cooling to 45 ℃, adding the raw materials in group C, and uniformly mixing to obtain a mixture;

s5: cooling the mixture to below 38 ℃, and filtering and discharging the mixture by using a filter screen with the mesh size of not less than 800 to obtain a filtered filter material;

s6: the filtered filter material is put into a homogenizer for homogenization, and the filtered filter material after homogenization and a thickening solvent are stirred at the speed of 30-50rpm/min and then homogenized at the speed of 2500 plus materials at 3000rpm/min at the temperature of 15-25 ℃ for 5-8 min; adding auxiliary humectant, and stirring at 30-50rpm/min for 10-15min to obtain primary mixed material;

s7: the primary mixed material passes through a filter screen with the mesh not smaller than 800 to obtain emulsion;

the steps S1, S2, and S3 may be performed in synchronization.

By adopting the technical scheme, the materials are filtered by the filter element with the particle size of 0.5 mu m, the particle size of the emulsion is refined, the emulsion is integrally more uniform, a better homogenization effect can be obtained, and the skin hydration degree growth rate of the emulsion is improved.

In a third aspect, the present application provides the following technical solutions: an emulsion production device, characterized in that the emulsion according to the claims 1-7 is prepared by the method according to claim 8, and comprises a machine body, a storage tank, a delivery pump, a pressure stabilizing cavity and a homogenizing valve which are all contained in the machine body, wherein the storage tank, the delivery pump, the pressure stabilizing cavity and the homogenizing valve are all sequentially communicated through the delivery pipeline, and the emulsion production device further comprises a transfer tank, wherein the delivery pipeline is communicated with a discharge end of the homogenizing valve and the transfer tank, and the transfer tank is communicated with the storage tank through the delivery pipeline.

By adopting the technical scheme, when the materials are homogenized, the materials of all the components are poured into the storage tank to be mixed, then the materials in the storage tank are pumped into the pressure stabilizing cavity at a certain speed through the conveying pump in the machine body, so that the pressure stabilizing cavity is always kept in a certain pressure range, the materials are homogenized through the homogenizing valve under certain pressure, the homogenized materials are conveyed into the transfer tank through the conveying pipeline again, after the materials are completely homogenized, the materials in the transfer tank are reintroduced into the storage tank, and are conveyed into the machine body again through the storage tank to be circularly homogenized until the required homogenizing effect is achieved, and therefore the materials are fully homogenized.

The particle size of the product can reach 100-200nm level, so that the permeability of the emulsion is greatly improved, and the stability and the moisturizing effect of the emulsion are improved.

Furthermore, a plurality of air inlets are formed in the position, close to the periphery wall of the material storage tank, the material storage tank is sleeved with and connected with a sealing sleeve in a sliding mode, when the sealing sleeve slides to the air inlets, the sealing sleeve seals the air inlets, and an air supply assembly for supplying air to all the air inlets is arranged on the material storage tank; the air supply assembly comprises an installation sleeve and an air supply pump, the installation sleeve is arranged outside the storage tank, an air supply cavity communicated with the air inlet hole is formed in the installation sleeve, and the air supply pump is communicated with the air supply cavity.

Through adopting above-mentioned technical scheme, through the setting of inlet port, when the closed cover removes the closure to the inlet port, the air feed subassembly supplies gas simultaneously to all inlet ports, and high-pressure gas passes through the inlet port and gets into the liquid material from the position of the comparatively bottom of material to the formation bubble, the bubble carries out intensive mixing to the material at the in-process of upward movement, makes it mix in advance, makes the material more even before getting into the organism and carrying out the homogeneity, has improved the homogeneity effect of material.

In summary, the present application has the following beneficial effects:

1. because the compound system of the Chondrus crispus extract in the sodium hyaluronate, the hydrogenated lecithin and the Chondrus crispus extract is adopted, the change rate of the skin hydration degree in the same time period is improved, and the permeation and absorption amount of the emulsion on the skin is improved.

2. Because the auxiliary agent and the carrageen crispus extract are compounded, the skin hydration degree change rate in the same time period is improved, and the permeation and absorption amount of the emulsion on the skin is improved.

3. According to the preparation method, the materials are filtered and then homogenized, the particle size of the emulsion is refined, the emulsion is integrally more uniform, and a better homogenization effect is obtained.

4. According to the production equipment, through the arrangement of the transfer tank and the conveying pipeline, the materials after primary homogenization can be temporarily stored in the transfer tank and conveyed to the storage tank at a proper time for secondary homogenization, so that the homogenization effect of the materials is improved; the air inlet holes, the air supply assembly and the sealing sleeve are arranged, so that when materials are pre-stored in the material storage tank, high-pressure air can be conveyed to the inside of the material storage tank through the air supply assembly, bubbles moving at a high speed are generated in the materials, and the materials are pre-mixed.

Drawings

FIG. 1 is a background art schematic;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a storage tank of an embodiment of the present application;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the connection of the roll-over plate to the storage tank in an embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

Examples

Examples 1 to 15: an emulsion, wherein the components, the compositions and the masses of the examples 1 to 5 are shown in a table 1.1, the components, the compositions and the masses of the examples 6 to 10 are shown in a table 1.2, the components, the compositions and the masses of the examples 11 to 15 are shown in a table 1.3, and the total amount of each example is 100 kg; and is prepared by the following steps:

s1: putting the raw materials of the group A into an emulsifying pot, starting heating at a stirring speed of 50rpm/min, stopping heating when the temperature reaches 80 ℃, and preserving heat to obtain a phase A;

s2: putting the raw materials in the group B into a stirring pot, and stirring at the temperature of 80 ℃ and the stirring speed of 50rpm/min for 20min to obtain a phase B;

s3: adding the raw materials of the thickening solvent into a dispersion machine, and dispersing for 10min at the stirring speed of 1000rpm/min to obtain the thickening solvent;

s4: vacuum pumping the phase B into an emulsifying pot, mixing with the phase A, homogenizing at 3000rpm/min for 5min, and stirring at 50rpm/min for 20 min; then cooling to 45 ℃ and preserving heat, then adding the raw materials in group C, and mixing for 20min at a stirring speed of 50rpm/min to obtain a mixture;

s5: cooling the mixture to 38 ℃, and filtering and discharging the mixture by using a 800-mesh filter screen to obtain a filtered filter material;

s6: the filter material after will filtering is dropped into the homogenizer and is homogenized, the homogenizer model is: CHX-100L; temperature: 85 ℃; then stirring the filtered filter material and the thickening solvent which are homogenized for 2min at the speed of 50rpm/min and then homogenizing at the speed of 3000rpm/min at the temperature of 20 +/-5 ℃ for 3 min; finally, adding an auxiliary humectant, and stirring at the speed of 50rpm/min for 10min to obtain a primary mixed material;

s7: passing the primary mixed material through a 800-mesh filter screen to obtain emulsion;

the steps S1, S2, and S3 may be performed in synchronization.

TABLE 1.1 examples 1-5 compositions, compositions and masses (kg)

TABLE 1.2 examples 6-10 compositions, compositions and masses (kg)

TABLE 1.3 examples 11-15 compositions, compositions and masses (kg)

In the above embodiment: the thickening solvent consists of carbomer and water in a mass portion ratio of 1: 50.

The auxiliary humectant is arginine; the thickening agent is xanthan gum; the chelating agent is disodium EDTA.

The first emulsifier consists of 65% cetearyl olive oleate and 35% sorbitan olive oleate.

The second emulsifier is composed of glyceryl stearate and cetearyl alcohol in a mass part ratio of 5: 4.

Example 16: a method of preparing an emulsion comprising the steps of:

s1: putting the raw materials of the group A into an emulsifying pot, starting heating at the stirring speed of 20rpm/min, stopping heating when the temperature reaches 78 ℃, and preserving heat to obtain a phase A;

s2: putting the raw materials in the group B into a stirring pot, and stirring at the temperature of 78 ℃ and the stirring speed of 20rpm/min for 40min to obtain a phase B;

s3: adding the raw materials of the thickening solvent into a dispersion machine, and dispersing for 8min at a stirring speed of 14000rpm/min to obtain the thickening solvent;

s4: vacuum pumping the phase B into an emulsifying pot, mixing with the phase A, homogenizing at 2500rpm/min for 8min, and stirring at 20rpm/min for 30 min; then cooling to 40 ℃ and preserving heat, then adding the raw materials in group C, and mixing for 40min at a stirring speed of 20rpm/min to obtain a mixture;

s5: cooling the mixture to 30 ℃, and filtering and discharging the mixture by using a 800-mesh filter screen to obtain a filtered filter material;

s6: the filter material after will filtering is dropped into the homogenizer and is homogenized, the homogenizer model is: the homogenizer model is: CHX-100L; temperature: 85 ℃; then stirring the filtered filter material and the thickening solvent which are homogenized for 3min at the speed of 30rpm/min and at the temperature of 20 +/-5 ℃, and then homogenizing at the speed of 2500rpm/min for 5 min; finally, adding an auxiliary humectant, and stirring at the speed of 30rpm/min for 20min to obtain a primary mixed material; s7: passing the primary mixed material through a 800-mesh filter screen to obtain emulsion;

the steps S1, S2, and S3 may be performed in synchronization.

Example 17: an emulsion production device is shown in figure 1, and the embodiment of the application discloses a high-pressure homogenizer. Referring to fig. 2, the high-pressure homogenizer includes a machine body 1, a storage tank 2, a transfer tank 3, a mounting rack 4 for mounting the storage tank 2 and the transfer tank 3, and a conveying pipeline 5 sequentially communicating the storage tank 2, each component in the machine body 1 and the transfer tank 3 and forming a closed loop. Each part in the machine body 1 comprises a conveying pump 11 (not shown in the figure), a pressure stabilizing cavity 12 (not shown in the figure) and a homogenizing valve 13 (not shown in the figure), and the conveying pipeline 5 connects the conveying pump 11, the pressure stabilizing cavity 12 and the homogenizing valve 13 in series in sequence in the machine body 1. The transfer pump 11 may be a diaphragm pump, a piston pump, or the like. The outlets of the storage tank 2 and the transfer tank 3 are both provided with a stop valve 6.

When materials are homogenized, the materials of all components are poured into the storage tank 2 to be mixed, then the materials in the storage tank 2 are pumped into the pressure stabilizing cavity 12 at a certain speed through the conveying pump 11 in the machine body 1, the pressure stabilizing cavity 12 is kept in a certain pressure range all the time, the materials are homogenized through the homogenizing valve 13 under a certain pressure, the homogenized materials are conveyed into the transfer tank 3 through the conveying pipeline 5 again, after all the materials in the storage tank 2 are conveyed out, the materials in the transfer tank 3 are guided into the storage tank 2, and are conveyed into the machine body 1 again through the storage tank 2 to be circularly homogenized until the required quality is achieved.

Referring to fig. 3, the air supply assembly 7 is arranged outside the storage tank 2, and the air supply assembly 7 comprises a mounting sleeve 71 and an air supply pump 72. The installation sleeve 71 is sleeved outside the storage tank 2 and is fixedly installed on the installation frame 4 through bolts, the hollow part inside the installation sleeve 71 forms an air supply cavity 711, the body of the air supply pump 72 is installed on the installation frame 4 through bolts, and the air outlet end of the air supply pump 72 is communicated with the air supply cavity 711 through a pipeline.

Referring to fig. 3, the storage tank 2 includes a tank body 21 and a cover 22, and the tank body 21 is connected to a mounting sleeve 71 by bolts. Jar body 21 upper end opening is sealed through closing cap 22, and closing cap 22 joint is in jar body 21. The storage tank 2 comprises a vertical part 211 and a necking part 212, wherein the necking part 212 is positioned at the lower end of the vertical part 211, and the necking part 212 is necking towards the direction far away from the vertical part 211.

Referring to fig. 4, the peripheral wall of the vertical portion 211 of the storage tank 2 is provided with a plurality of air inlet holes 23 and a plurality of cleaning holes 24, the plurality of air inlet holes 23 are all opened at the position close to the bottom of the peripheral wall of the vertical portion 211 of the storage tank 2, and the plurality of cleaning holes 24 are all opened at the position close to the upper position of the peripheral wall of the vertical portion 211 of the storage tank 2, so that the cleaning holes 24 and the air inlet holes 23 are separated and used as two functional areas.

Each air inlet 23 is provided with a ventilating diaphragm 231 fixed by gluing, the ventilating diaphragm 231 is provided with a plurality of air holes, when the air inlet 23 is communicated with the air supply cavity 711, high-pressure air in the air supply cavity 711 is pumped into the storage tank 2 from the air holes and moves upwards from the position at the bottom of the inner cavity of the storage tank 2, and liquid materials are premixed in the air bubble ascending movement process.

Referring to fig. 4, the upper end of the vertical portion 211 of the storage tank 2 is provided with a caulking groove 213 along the vertical direction, the caulking groove 213 is rotatably connected with a turning plate 25, and the turning point of the turning plate 25 and the caulking groove 213 is located at the top of the turning plate 25 and faces one side of the caulking groove 213, so that the turning plate 25 can be turned upwards to be perpendicular to the inner wall of the vertical portion 211 of the storage tank 2.

Set up the intercommunication chamber 26 in the storage tank 2 inner wall that is located caulking groove 213 department, intercommunication chamber 26 intercommunication air supply chamber 711, clean hole 24 is seted up on the storage tank 2 inner wall between intercommunication chamber 26 and caulking groove 213, clean hole 24 intercommunication chamber 26, fixed mounting has air nozzle 27 in the clean hole 24, and air nozzle 27 is the acute angle contained angle setting with storage tank 2 vertical part 211 inner wall.

Referring to fig. 4, the inversion plate 25 is hollow and has an air vent cavity 253 formed therein, and the air vent cavity 253 communicates with the communicating cavity 26 through a rotation point of the inner wall of the storage tank 2.

Referring to fig. 5, the turning plate 25 is integrally formed with turning blocks 251 at two sides thereof, the caulking grooves 213 at two sides of the turning plate 25 are provided with turning grooves 214, the turning blocks 251 are rotated in the turning grooves 214, the turning blocks 251 are hollow and communicated with the communicating chamber 253, the turning grooves 214 are provided with through holes communicated with the communicating chamber 26, so that the turning plate 25 is rotated on the inner wall of the storage tank 2 and the communicating chamber 253 is communicated with the communicating chamber 26.

The flap plate 25 is also provided with a plurality of air nozzles 27 on a side wall thereof facing the insertion groove 213. When the turnover plate 25 rotates to be perpendicular to the inner wall of the storage tank 2, the air nozzle 27 on the turnover plate 25 forms an acute included angle with the inner wall of the storage tank 2 on the side where the turnover plate 25 is located. After the high-pressure gas in the gas supply cavity 711 enters the communicating cavity 26, the communicating cavity 26 and the ventilation cavity 253 are filled with the high-pressure gas instantly, so that the high-pressure gas is sprayed out from the gas nozzle 27 and is inclined to wash the inner wall of the storage tank 2, and the residual material on the inner wall is downwards flushed by the gas along the inner wall of the storage tank 2 and flows into the machine body 1.

Referring to fig. 3 and 4, the outer wall of the storage tank 2 is sleeved and connected with a sealing sleeve 8 in a sliding manner along the vertical direction, and the sealing sleeve 8 is located in the air supply cavity 711. The mounting sleeve 71 is further provided with a switching assembly 9 for driving the sealing sleeve 8 to slide.

The switching assembly 9 comprises a lead screw 91 and a guide rod 92 which are vertically arranged, the sealing sleeve 8 comprises a sliding block 81 which is integrally formed, and the two sliding blocks 81 are connected corresponding to the lead screw 91 and the guide rod 92 respectively. The lead screw 91 is rotatably connected to the mounting sleeve 71 through a bearing, one end of the lead screw 91 penetrates out of the mounting sleeve 71 and is fixedly provided with a hand wheel 911, and two ends of the guide rod 92 are fixedly connected to the mounting sleeve 71. One sliding block 81 is penetrated and threaded to the lead screw 91, and the other sliding block 81 is penetrated and slidably connected to the guide rod 92 along the vertical direction.

The height of the closure sleeve 8 is set to be sufficient to cover all the cleaning apertures 24 and at the same time to cover all the air inlet apertures 23.

When the inner wall of the storage tank 2 needs to be cleaned, the switching assembly 9 drives the sealing sleeve 8 to slide downwards to all the air inlet holes 23, the sealing sleeve 8 seals all the air inlet holes 23, high-pressure gas in the air supply cavity 711 can not enter the storage tank 2 from the air inlet holes 23, the communication cavity 26 is communicated with the air supply cavity 711 at the moment, and the gas is sprayed out from the air nozzle 27 through the communication cavity 26 to clean the inner wall of the storage tank 2.

When the material storage tank 2 is filled with materials, the switching assembly 9 drives the sealing sleeve 8 to slide upwards to the outside of the communicating cavity 26, so that the communicating cavity 26 and the air supply cavity 711 are separated by the sealing sleeve 8. At this time, the air inlet 23 is communicated with the air supply chamber 711, and high-pressure air enters the material storage tank 2 from the air supply chamber 711 to premix and stir the materials.

Referring to fig. 4, the turning plate 25 is provided with a driving member, the driving member is a traction member 252, the traction member 252 can be a flexible connection article such as a rope, a through groove for the traction member 252 to pass through is formed in the inner wall of the storage tank 2, and the horizontal height of the through groove is higher than that of the turning plate 25. The two ends of the pulling member 252 are fixedly connected to the sealing sleeve 8 and the turnover plate 25 respectively, and the pulling member 252 extends upwards from the sealing sleeve 8, passes through the through groove and then extends downwards to be connected to the turnover plate 25. When the sealing sleeve 8 slides downwards and is ready to be removed, the sealing sleeve 8 is pulled by pulling the pulling piece 252 to move downwards synchronously, the pulling piece 252 pulls the turnover plate 25 upwards through the action of the fixed pulley on the top end of the storage tank 2, so that the turnover plate 25 slides downwards along with the sealing sleeve 8 and overturns upwards gradually, when the sealing sleeve 8 completely seals all the air inlets 23, the turnover plate 25 is just perpendicular to the inner wall of the storage tank 2, and the turnover plate 25 and the air nozzle 27 can directly start to clean the inner wall of the storage tank 2.

The implementation principle of the embodiment of the application is as follows:

before homogenizing the material, firstly, all the material is led into the storage tank 2, at this moment, the connecting cavity 26 is isolated from the air supply cavity 711 by the sleeve 8, and the cleaning hole 24 is isolated from the inner wall of the storage tank 2 by the embedding of the turnover plate 25 in the caulking groove 213. The air supply chamber 711 is filled with high-pressure air by the air supply pump 72, the high-pressure air enters the storage tank 2 from the air inlet 23 through the air permeable diaphragm 231, bubbles moving upwards constantly are formed in the liquid material, and the bubbles stir and mix the material in the storage tank 2 when moving, so that the material is premixed.

After premixing is completed, the material is pumped into the machine body 1 by the conveying pump 11 for homogenization, the switching assembly 9 drives the closing plate to move downwards at the moment until all the air inlet holes 23 are closed, the traction piece 252 drives the turnover plate 25 to turn upwards and open at the moment, high-pressure gas in the air supply cavity 711 enters the communicating cavity 26 at the moment, and is obliquely sprayed out from the air nozzles 27 in the turnover plate 25 and the caulking groove 213, the residual material on the inner wall of the storage tank 2 is blown downwards, so that the residue of the material on the inner wall is reduced, and the material is fully mixed.

After the materials are homogenized through the homogenizing valve 13, the materials are conveyed to the transfer tank 3 through the conveying pipeline 5 again for storage, after one-time homogenization is completed, the materials in the transfer tank 3 are guided into the material storage tank 2 again, and the steps are repeated until the materials are homogenized to reach the required quality.

Example 18: a preparation method of emulsion is different from the preparation method in the embodiment 1 in that the homogenizer in the step S6 is the embodiment 17, the air pump power is 5kw, the air input is 5L/min, and the temperature of the organism 1 is 85 ℃.

Comparative example

Comparative example 1: an emulsion differs from example 1 in that the rejuvenating conditioner is diglycerol, the first conditioner is shea butter and the third conditioner is replaced with an equal amount of water.

Comparative example 2: an emulsion, differing from example 1 in that the restorative conditioning agent was diglycerol.

Comparative example 3: an emulsion, differing from example 1 in that the first conditioning agent was shea butter.

Comparative example 4: an emulsion differs from example 1 in that the third conditioning agent is replaced with an equal amount of water.

Comparative example 5: a method for preparing an emulsion, which is different from the preparation method in example 1 in that steps S5 and S7 are not performed.

Characterization test:

1. skin hydration rate test

Test samples: examples 1-15, example 15 with example 18 gave example 18, comparative examples 1-4, example 1 with comparative example 5 gave comparative example 5 and a blank set, for a total of 22 test samples.

Test subjects: 66 female subjects of 25-33 years old were selected and pregnant women, other chronic patients with skin diseases, allergy and cancer were excluded.

The test method comprises the following steps: the 66 subjects were divided on average into 22 groups of 3 each, corresponding to the test groups: examples 1-15, examples 18, comparative examples 1-4, comparative example 5, and a blank. The test time is 8 months; skin stabilization stage: ten days before the start of the test, the subjects applied a cleanser (150 ml of japanese coda bubble mousse cleanser) at 8 am and 21 pm, wiped dry, and then given their skin care with makeup water and lotion, which were used daily by themselves. After the test is started, replacing the emulsion with the test sample of the corresponding group by the test group, and performing daily skin care; the cosmetic lotion is used in an amount of 2ml and the lotion is used in an amount of 1.5ml, and the lotion is gently tapped until the lotion is absorbed. The blank group continued to use daily lotions and lotions for skin care.

Skin hydration test Corneometer CM825(CK electronic GmbH, germany) was used. 30min before the test, the temperature of the test subject entering the test environment is 25 +/-2 ℃, and the relative humidity is 50 +/-2 rh%. In the morning 8 hours was the initial point, and then skin hydration tests were performed for 1h, 2h, 5h and 6 h. The test points were cheeks and located below the cheekbones, and the test area was 2 x 2 cm.

After the face was cleaned on the day of the start of the test, the skin hydration degree test was performed as an initial value, and on the day of the start of the test, the skin hydration degrees at 1h, 2h, 5h and 6h were measured as test values, and the skin hydration degree change rate ((test value-initial value)/initial value) × 100% was calculated.

The subjects performed the skin hydration test at 6h after 8 o' clock skin care on the last day during the skin stabilization phase performed ten days before the start of the trial.

And (3) test results: the skin hydration rate test results are reported in table 2.

TABLE 2 skin hydration Rate of Change test results

And (3) data analysis: as can be seen from the data in Table 2, the skin hydration rate was greater for both examples and examples at 1h and 2h than for the blank, and the skin hydration rates were balanced at 5h and 6 h. The skin hydration change rates of the comparative examples and the comparative examples are improved at 1h, 2h and 5h and are reduced at 6 h.

The skin hydration degree change rate is divided into four stages, the first stage is that the skin care product is just coated, the skin hydration degree can be greatly increased, so that the skin hydration degree change rate is increased, and until the second stage, the moisture in the skin care product is evaporated, and the skin hydration degree change rate can be reduced; the third stage is the stable promotion of the change rate of the skin hydration degree, and is the stage of the moisture-preserving component, and the fourth stage is the stable moisture-preserving stage, and the change range of the change rate of the skin hydration degree is small. Examples 1-15 and 18 all reached the moisturizing plateau at 5h, while comparative examples 1-4, comparative example 5 and the blank were still in the first phase at 2h to 5h, and only reached the second phase beginning at 6 h. Under the condition of the same coating amount, the embodiment advances the moisture retention stabilizing time, and improves the permeation amount in unit time; the compound of sodium hyaluronate, hydrogenated lecithin and carrageen crispus extract is described; filtering and homogenizing by a homogenizer can effectively improve the permeation speed of the effective components and achieve moisture-keeping balance more quickly. The reasons may be: after the sodium hyaluronate enters the surface layer of the skin, the skin channel can be opened, the sodium hyaluronate has a good transdermal absorption promoting effect, and after the sodium hyaluronate is compounded with the hydrogenated lecithin and the carrageen crispus extract for use, the sodium hyaluronate can further promote the penetration of other nutrient substances, improves the penetration absorption amount in unit time, and achieves the effect of improving the change rate of the skin hydration.

Comparing all examples, examples 5-6 define the mass part ratio of sodium hyaluronate, hydrogenated lecithin and Chondrus crispus extract based on example 3, further increasing the rate of change of skin hydration per unit time and the osmotic absorption per unit time.

Example 7 on the basis of example 5, the penetration assisting agent is citric acid, so that the change rate of the skin hydration degree in unit time is further improved, and the penetration absorption amount in the same time is improved. The reasons may be: the adjuvant changes the use environment of the Chondrus crispus extract, and promotes the synergistic effect of the Chondrus crispus extract in the complex system of sodium hyaluronate, hydrogenated lecithin and Chondrus crispus extract, thereby improving the osmotic absorption amount.

Example 8 defines conditioning group B based on example 7 and examples 9-10 define the ratio of the ingredients in conditioning group B based on example 8, all further improving the rate of change of skin hydration per unit time. The reason may be that shea butter and tocopherol acetate provide good carriers for hydrogenated lecithin, and simultaneously provide early skin softening for the penetration of the Chondrus crispus extract in the sodium hyaluronate, hydrogenated lecithin and Chondrus crispus extract complex system.

Examples 11-12 define a fifth conditioner on the basis of example 9, further increasing the rate of change of skin hydration per unit time. The possible reasons are: the sodium carrageenan and the sea salt in the fifth conditioner further adjust the environment of a compound system of the sodium hyaluronate, the hydrogenated lecithin and the carrageen crispus extract, and further promote the progress of osmotic absorption.

Examples 13-14 define conditioner a on the basis of example 11, with a small increase in the rate of change of skin hydration, indicating that conditioner a can moisturize without affecting the penetration and absorption promotion of sodium hyaluronate in a complex system of sodium hyaluronate, hydrogenated lecithin and Chondrus crispus extract.

Comparative examples and comparative examples comparative example, comparative example 1 removed the complex formulation of sodium hyaluronate, hydrogenated lecithin and Chondrus crispus extract, comparative example 2 removed sodium hyaluronate, comparative example 3 removed hydrogenated lecithin, comparative example 4 removed Chondrus crispus extract; comparative 5 was prepared without filtration. The skin hydration rate increase of the comparative example and the comparative examples is lower in 1h and 2h than in the examples and the practical examples, which shows that the combination of the sodium hyaluronate, the hydrogenated lecithin and the Chondrus crispus extract can improve the osmotic absorption amount on the skin.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. An emulsion, which is characterized by comprising the following components in percentage by weight:

the balance of water;

5.01 to 15.5 percent of thickening solvent;

0.01 to 0.5 percent of auxiliary humectant;

group A:

2.5 to 17 percent of basic humectant;

0.12 to 2.5 percent of first humectant;

0.22 to 6.6 percent of repairing conditioner;

0.01 to 0.2 percent of thickening agent;

0.01 to 0.2 percent of chelating agent;

group B:

4-20% of a first emollient;

1.3-10% of a second emollient;

1-5% of a first emulsifier;

0.2-6% of second emulsifier;

0.12-10% of a first conditioner;

group C:

0.01-1% of a second humectant;

0.05-5% of a second conditioner;

0.01-1% of a third conditioner;

0.01-1% of a fourth conditioner;

0.01-1% of a fifth conditioner;

0.01-1% of sixth conditioner;

0.01-1% of seventh conditioning agent;

the repairing conditioner consists of sodium hyaluronate accounting for 0.01-0.4% of the total amount of the emulsion and the balance of conditioning group A;

the first conditioning agent consists of hydrogenated lecithin accounting for 0.01 to 1.5 percent of the total amount of the emulsion and the rest conditioning group B;

the third conditioner comprises 5-8.5% of Chondrus crispus extract, 15-20% of propylene glycol, 0.001-0.01% of penetration adjuvant, and the balance of water.

2. The emulsion according to claim 1, wherein the mass part ratio of the sodium hyaluronate, the hydrogenated lecithin and the Chondrus crispus extract is 1: 2: (0.15-0.21).

3. An emulsion according to claim 1, wherein the adjuvant is one of citric acid, sodium citrate, tartaric acid, sodium tartrate.

4. An emulsion according to claim 1, wherein conditioning group B consists of shea butter from 0.1 to 8% of the total emulsion and tocopheryl acetate from 0.01 to 0.5% of the total emulsion.

5. An emulsion according to claim 4, wherein the mass part ratio of the shea butter, the hydrogenated lecithin and the tocopherol acetate is 10: (2-5): 1.

6. an emulsion according to claim 1 wherein the fifth conditioning agent comprises 4 to 8% sodium carrageenan, 0.1 to 0.7% sea salt, 0.1 to 0.5% phenoxyethanol and balance water.

7. An emulsion according to claim 1, wherein the conditioning group A comprises p-hydroxyacetophenone in an amount of 0.1 to 0.8% based on the total amount of the emulsion, diglycerin in an amount of 0.1 to 5% based on the total amount of the emulsion, and sodium hyaluronate in balance.

8. A process for the preparation of an emulsion according to any one of claims 1 to 7, characterized in that it comprises the following steps:

s1: mixing the raw materials of the group A, starting heating at a stirring speed of 20-50rpm/min, stopping heating when the temperature reaches 78-80 ℃, and preserving heat to obtain a phase A;

the steps S1, S2, and S3 may be performed in synchronization.

9. An emulsion production device, which adopts the preparation method according to claim 8 and is characterized in that the emulsion production device comprises a machine body (1), a storage tank (2) and a conveying pipeline (5), wherein a conveying pump (11), a pressure stabilizing cavity (12) and a homogenizing valve (13) are all contained in the machine body (1), the storage tank (2), the conveying pump (11), the pressure stabilizing cavity (12) and the homogenizing valve (13) are all communicated in sequence through the conveying pipeline (5), and the emulsion production device is characterized in that: the material storage tank is characterized by further comprising a transfer tank (3), wherein the conveying pipeline (5) is communicated with the discharge end of the homogenizing valve (13) and the transfer tank (3), and the transfer tank (3) is communicated with the material storage tank (2) through the conveying pipeline (5).

10. The emulsion production equipment as claimed in claim 9, wherein a plurality of air inlet holes (23) are formed in the position, close to the peripheral wall of the storage tank (2), the storage tank (2) is sleeved and connected with a sealing sleeve (8) in a sliding manner, when the sealing sleeve (8) slides to the air inlet holes (23), the air inlet holes (23) are sealed by the sealing sleeve (8), and an air supply assembly (7) for supplying air to all the air inlet holes (23) is arranged on the storage tank (2); air feed subassembly (7) are including installation cover (71) and air feed air pump (72), outside storage tank (2) were located to installation cover (71) cover, set up air feed chamber (711) that communicate inlet port (23) in installation cover (71), air feed air pump (72) communicate in air feed chamber (711).