WO2021109319A1 - Bath moisturizer having high moisture retention effect and preparation method therefor - Google Patents

Abstract

A bath moisturizer having high moisture retention effect and a preparation method therefor. The bath moisturizer comprises first polyethylene glycol, a grease skin humectant, a water-soluble silicone wax, polyol, a silicone-based moisturizing lubricant, dimethiconol, hydrogenated lecithin, a macromolecular humectant, ceramide, and a polyglycerol emulsifier, and the average molecular weight of the first polyethylene glycol is from 4400 to 10000. The bath moisturizer of the present application has the advantages of high moisture retention effect, long service life and stable performance.

Description

Bath lotion with high moisturizing effect and preparation method thereof Technical field

The embodiments of the present application relate to but not limited to the field of skin care products, in particular to but not limited to a bath moisturizer with high moisturizing effect and a preparation method thereof.

Background technique

The beauty lotion for bath is a skin care product used with the beauty shower during bathing. It is dissolved in the water in the beauty shower and sprayed on the user through the beauty shower to achieve whitening and moisturizing effects. Most of the nutrients of the current beauty lotion are taken away by the water, and only a small part remains on the skin surface. Moreover, the current beauty lotion has a short service life. If a person uses it for 30 seconds once a day, it can generally only be used for one month.

Therefore, there is a need to develop an alternative product for beauty lotion with better skin care efficacy and longer service life.

Summary of the invention

The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claims.

The application provides a bath moisturizing cream with high moisturizing effect and long service life and a preparation method thereof.

This application provides a bath moisturizing cream with high moisturizing effect, including: first polyethylene glycol, oil-based moisturizing and moisturizing agent, water-soluble silicone wax, polyol, silicone moisturizing lubricant, polydimethyl methacrylate Siloxanol, hydrogenated lecithin, macromolecular humectant, ceramide, polyglycerin emulsifier, and the average molecular weight of the first polyethylene glycol is 4400 to 10,000.

In the embodiment of the present application, the content of the above-mentioned components in the bath moisturizer may be:

In the embodiment of the present application, the first polyethylene glycol may be selected from polyethylene glycol-180 (molecular weight of 7200 to 8800), polyethylene glycol-150 (molecular weight of 6500 to 7000) and polyethylene glycol Any one or more of alcohol-200 (molecular weight 9000 to 11000). For example, polyethylene glycol-180 can be polyethylene glycol-180 purchased from Dow Chemical Company's PEG-8000NF model, and polyethylene glycol-150 can be purchased from Dow Chemical Company's PEG-8000NF. 4000 NF model polyethylene glycol-150.

In the embodiment of the present application, the content of the first polyethylene glycol in the bath emollient cream may be 25% to 47% by weight, and optionally may be 25% to 35%.

In an embodiment of the present application, the bath moisturizer may further include a second polyethylene glycol, the average molecular weight of the second polyethylene glycol is 1350 to 4400, and by weight, the second polyethylene glycol The content of ethylene glycol in the bath emollient cream may be 12% to 20%.

In the embodiment of the present application, the second polyethylene glycol is selected from polyethylene glycol-90 (molecular weight of 3500 to 4400), polyethylene glycol-75 (molecular weight of 3200 to 3500) and polyethylene glycol Any one or more of -100 (molecular weight is 4500 to 5500). For example, polyethylene glycol-90 can be polyethylene glycol-90 purchased from Dow Chemical Company PEG-4000NF, and polyethylene glycol-75 can be used PEG-4000NF purchased from Dow Chemical Company. 3350 NF model polyethylene glycol-75.

In the embodiments of the present application, the oil-based emollient moisturizer can be selected from any one or more of petrolatum, vegetable oil and synthetic oil.

In the embodiment of the present application, the water-soluble silicone wax may be selected from bis-PEG-18 methyl ether dimethyl silane, bis-PEG-15 methyl ether polydimethylsiloxane and bis-PEG- 12 Any one or more of polydimethylsiloxane beeswax esters.

In the embodiment of the present application, the polyol may be selected from any one or more of butanediol, glycerin, 1,2-propanediol, 1,3-propanediol, methylpropanediol, and dipropylene glycol.

In the embodiment of the present application, the silicone moisturizing lubricant may be selected from polydimethylsiloxane, phenyl trimethicone and diphenylsiloxy phenyl trimethyl Any one or more of siloxanes.

In the embodiments of the present application, the polymer moisturizer can be selected from any one or more of sodium hyaluronate, dextran and polyglutamic acid.

In an embodiment of the present application, the ceramide may be ceramide 3.

Optionally, the ceramide may be a encapsulated ceramide, for example, it may be a ceramide encapsulated by shea butter, but there is no strict requirement on the usage amount of shea butter. The ceramide encapsulated in avocado butter may be ceramide encapsulated in avocado butter, model SLM 2026 purchased from LIPOID GmbH.

In the embodiment of the present application, the polyglycerin-based emulsifier can be selected from any one of polyglycerol-10 fatty acid ester, polyglyceryl-6 distearate and polyglyceryl-2 isostearate Or multiple.

Optionally, the polyglyceryl-10 fatty acid ester can be selected from polyglyceryl-10 laurate, polyglyceryl-10 stearate, polyglyceryl-10 distearate, polyglyceryl-10 isostearate Any one or more of acid ester and polyglycerol-10 myristate.

In the embodiment of the present application, the bath emollient cream may also include tocopherol acetate, and the content of the tocopherol acetate in the bath emollient cream may range from 0.1% to 0.6%.

In the embodiment of the present application, the bath moisturizer may also include any one or more of plant extract moisturizer, third polyethylene glycol, preservative, hydrogenated phosphatidylcholine and flavor, so The average molecular weight of the third polyethylene glycol is 100,000 to 1,000,000.

In the embodiment of the present application, the plant extract moisturizer can be selected from Dendrobium nobile stem extract, Sophora flavescens root extract, Echinacea purpurea root extract, Ningxia wolfberry fruit extract, Aloe vera leaves Any one or more of extract, rosemary leaf extract, matricaria flower extract, Glycyrrhiza glabra root extract, tea extract, Polygonum cuspidatum root extract, Centella asiatica extract, and Scutellaria baicalensis root extract.

In the embodiment of the present application, the third polyethylene glycol may be selected from polyethylene glycol-14M (average molecular weight of 600,000), polyethylene glycol-7M (average molecular weight of 300,000) and polyethylene glycol- Any one or more of 20M (average molecular weight is 850,000). For example, Polyethylene Glycol-14M can use Polyethylene Glycol-14M purchased from Dow Chemical Company's POLYOX WSR-205 model, and Polyethylene Glycol-7M can be used Polyethylene Glycol-14M purchased from Dow Chemical Company DOW Chemical Co. WSR N-750 model polyethylene glycol-7M.

In the embodiments of the present application, the preservative may be selected from any one or more of phenoxyethanol, methyl paraben, propyl paraben, and imidazolidinyl urea.

In the examples of the present application, based on weight, the content of the following components in the bath moisturizer may be:

It should be understood that the first polyethylene glycol, the second polyethylene glycol, oil-based emollients and moisturizers, water-soluble silicone waxes, polyols, silicone-based moisturizing lubricants, polymer-based moisturizing agents, The specific selections of the polyglycerin emulsifier and the third polyethylene glycol can be interchanged arbitrarily, and the prepared bath moisturizer has similar effects.

In addition, the first polyethylene glycol used in the bath emollient cream, oil-based moisturizing agent, water-soluble silicone wax, polyol, silicone-based moisturizing lubricant, polymer-based moisturizing agent, polyglycerin The emulsifier, the second polyethylene glycol, the plant extract moisturizer, the third polyethylene glycol and the preservative are not limited to the specific materials listed above. Materials that can achieve the effects of various reagents can be used in this application. In the bath moisturizer, the specific materials listed above do not limit the application in any form or substance.

In the embodiment of the present application, by weight, the bath moisturizer may include:

Optionally, by weight, the bath moisturizer may include:

The functions of some of the components used in the bath emollient cream of this application are as follows:

Hydrogenated Lecithin: Phospholipid, a constituent of lecithin, is a constituent of cell membranes. Phospholipids are the active ingredients of all biological cells, which can maintain the normal water balance of the skin, prevent peeling, and can reduce the irritation of surfactants and reduce the risk of allergies. The function of hydrogenated lecithin is almost the same as that of phospholipids. Lecithin has good adaptability and permeability to the skin, and can increase the softness of the skin, thicken the stratum corneum, and repair the skin barrier function; at the same time, the product forms a liquid crystal structure.

Ceramide: Ceramide is a type of phospholipid composed of sphingosine long-chain bases and fatty acids. The main ones are ceramide phosphocholine and ceramide phosphoethanolamine. Phospholipids are the main components of cell membranes and are used to maintain the stratum corneum. It plays an important role in the balance of water. Ceramide has a strong ability to associate water molecules. It maintains skin moisture by forming a network structure in the stratum corneum.

Macromolecular moisturizers can improve the moisturizing properties of bath moisturizers. Among them, sodium hyaluronate, also known as sodium hyaluronate, is an acidic mucopolysaccharide that naturally exists in the corneal skin and can absorb 1000 times its own weight in water to achieve retention of skin moisture and prevent moisture loss through the epidermis. The barrier repair when the skin is damaged, so that the skin will not feel dry after use, and increase luster. It can improve skin nutrition metabolism, make the skin soft, smooth, wrinkle, increase elasticity, prevent aging, and it is good while moisturizing. Transdermal absorption enhancer. When used in conjunction with other nutrients, it can promote the absorption of other nutrients.

Oil-based emollient moisturizers can improve the moisturizing properties of bath moisturizers and moisturize the skin. Among them, petrolatum, also known as petrolatum, is mainly a chemically inert hydrocarbon. It is not hydrophilic and will not be absorbed. After washing, a film can be formed on the skin on its surface to prevent moisture from evaporating and losing, which can keep the skin healthy. The moist state prevents bacteria from the air from contacting the skin.

Water-soluble silicone wax can improve the moisturizing properties of bath moisturizers, and increase the moisturizing, lubricating and luster of the skin. Among them, bis-PEG-18 methyl ether dimethyl silane is an alkyl silicone glycol copolymer wax, which has a lower melting point, good affinity with the skin, moisturizing, reducing stickiness, and increasing skin The moisturizing feeling, lubricity and luster.

Tocopherol Acetate: It is a derivative of vitamin E, has a good antioxidant effect, it is an oil-soluble natural substance, is a good nutrient moisturizer for the skin, can make the skin feel soft and keep the skin moisture , Promote wound healing, prevent inflammation and prevent rough and chapped skin.

This application also provides a method for preparing the above-mentioned bath moisturizing cream with high moisturizing effect, including:

(1) Add polyol, hydrogenated lecithin and polyglycerin emulsifier into the oil phase pot, and stir at the first set speed and first set temperature to make the hydrogenated lecithin and the polyglycerin The emulsifier forms an orderly arrangement;

(2) Under stirring, slowly add oil-based emollient moisturizer, silicone-based moisturizing lubricant and dimethiconol to the mixture obtained in step (1) to form an oil-in-liquid microstructure to obtain a liquid crystal phase A;

(3) Add the first polyethylene glycol, the macromolecular humectant, and optionally the second polyethylene glycol and the third polyethylene glycol into the water phase pot, and set the speed at the second setting speed and the second setting Stir at temperature to obtain water phase B;

(4) Sequentially add the water phase B obtained in step (3) and the liquid crystal phase A obtained in step (2) into the emulsifying pot, homogenize, keep warm, control the stirring speed within the range of the third set speed, and cool down;

(5) When the temperature of the mixture in step (4) is cooled to the third set temperature, add water-soluble silicon wax, stir evenly, and continue to cool;

(6) When the mixture in step (5) is cooled to the fourth set temperature, add ceramide and optionally preservatives, hydrogenated phosphatidylcholine, tocopherol acetate, plant extract moisturizer, flavor, and stir Uniform; discharging and filling.

In the embodiment of the present application, the first set speed may be 120 rpm to 200 rpm, and the first set temperature may be 70°C to 75°C.

In the embodiment of the present application, the second set speed may be 500 rpm to 800 rpm, and the second set temperature may be 70°C to 75°C.

In the embodiment of the present application, the third set temperature may be 60°C to 65°C, and the fourth set temperature may be 50°C to 55°C.

In the embodiment of the present application, the homogenization time in step (4) may be 5 min to 8 min, the heat preservation time may be 25 min to 35 min, and the third set speed may be 300 rpm to 500 rpm.

The bath moisturizing cream of the present application has the advantages of high moisturizing effect, long service life, and stable performance. specifically,

1. The liquid crystal structure is formed by adding hydrogenated lecithin or adding hydrogenated lecithin and polyglycerin emulsifier (for example, polyglycerol-10 stearate) at the same time. Liquid crystal is an intermediate phase between "liquid" and "solid". Liquid is a phase with very good fluidity and continuity, while crystals are an anisotropic and birefringent phase. The phase state between is called "liquid crystal"; the liquid crystal structure has the following advantages:

(1) Stronger moisturizing performance: In the process of forming a layered arrangement, there will be bound water that is not easy to volatilize between the hydrophilic group and the hydrophilic group, and this bound water improves the moisturizing property of the product;

(2) Promote the penetration of active ingredients: have a better affinity with the skin, thereby promoting the penetration of active ingredients into the skin, and obtain better skin care effects;

(3) The slow release of active ingredients can be controlled, so that the service life can be improved;

(4) Excellent stability;

2. The moisturizing effect is improved by adding oil-based emollient moisturizers (such as petrolatum): Taking petrolatum as an example, it is not hydrophilic and will not be absorbed, so that the bath moisturizer of the present application is sprayed on the user Behind the body, a film can be formed on the surface of the skin, so that moisture is not easy to evaporate and lose, can keep the skin in a moist state, and at the same time prevent bacteria from the air from contacting the skin;

3. The moisturizing effect is improved by adding silicone moisturizing lubricants (such as polydimethylsiloxane) and dimethiconol: silicone moisturizing lubricants and dimethiconol It is not hydrophilic, so that the bath moisturizer of the present application can form a uniform and waterproof protective film on the skin surface after being sprayed on the user, so that moisture is not easy to evaporate and lose, but it does not have any sticky and greasy feeling , And good antistatic performance, good air permeability;

4. When multiple polyethylene glycols with different molecular weights are added, the bath emollient cream of the present application can have a certain dissolution rate at different temperatures, and the moisturizing effect is also better than that of a single molecular weight polyethylene glycol. Better

5. There is no additional water added to the bath moisturizer of this application, only a very small amount of water is introduced through other raw materials, which increases the solid content in the moisturizer, reduces the dissolution rate of the moisturizer, and makes the skin moisturizing. The service life of the paste is extended.

Other features and advantages of the present application will be described in the following description, and partly become obvious from the description, or understood by implementing the present application. Other advantages of the present application can be realized and obtained through the solutions described in the specification and the drawings.

Brief description of the drawings

The accompanying drawings are used to provide an understanding of the technical solution of the application, and constitute a part of the specification. Together with the embodiments of the application, they are used to explain the technical solution of the application, and do not constitute a limitation to the technical solution of the application.

Fig. 1 is a scanning diagram of the lamellar liquid crystal structure of the bath emollient cream in Example 3 of the application;

Figure 2 is a comparison diagram of the moisturizing effect of bath moisturizers according to the examples of the application and the comparative example;

Fig. 3 is a comparison diagram of the skin moisture condition of volunteers before and after using the bath moisturizer of Example 3 of the present application.

Detail

Hereinafter, the embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

The sources of the raw materials and reagents used in the Examples and Comparative Examples are shown in Table 1.

Table 1

The content of each component given in this application refers to the content of the pure component in the bath moisturizer. If the commercially available product is not a pure substance, it has been converted to the content of the pure component. Moreover, in this application, the content of components other than hydrogenated phosphatidylcholine is defined as the content actively added to the bath moisturizer, and does not include the content substituted due to other raw materials. The content of hydrogenated phosphatidylcholine is not included. The content of choline includes the content added actively and substituted with other raw materials.

Example 1 to Example 6

The formulas of the bath emollient creams of Examples 1 to 6 are shown in Table 2.

Table 2

Note: It should be understood that when the commercially available raw materials are used to prepare the bath emollient cream in the examples of this application, some substances may be inevitably introduced, such as butylated hydroxytoluene, ethylhexylglycerol, and caprylic acid/decanoic acid in Tables 1 to 4. Acid triglycerides, hydrogenated phosphatidylcholine, 1,2-pentanediol, glycerin, squalane and water are all included in the purchased raw materials, so they are introduced into the bath emollient cream of the examples of this application Among them, hydrogenated phosphatidylcholine has a moisturizing effect. In addition to the introduction of raw materials, it can also be actively added to the bath moisturizer of this application; in addition, some of the components in Tables 1 to 4 can be introduced in the form of mixtures For example, the commercially available mixture of No. 7 and No. 15; Ceramide 3 is ceramide 3 coated with shea butter; the content in parentheses after the name of each component indicates that each component is in the mixture in which it is located For example, the mixture of No. 4 consists of 99.94% by weight of bis-PEG-18 methyl ether dimethyl silane and 0.06% by weight of butylated hydroxytoluene.

(1) Mix 50% by weight of the mixture of serial number 15 (consisting of water, glycerin, Dendrobium nobile stem extract, Sophora flavescens root extract, Echinacea purpurea root extract, Ningxia wolfberry fruit extract, Aloe vera leaf The extract, phenoxyethanol and ethylhexyl glycerin), butanediol, polyglycerol-10 stearate and hydrogenated lecithin are added to the oil phase pot, the stirring speed is controlled between 120rpm and 200rpm, and the temperature is controlled at 70 Between ℃ and 75℃, make polyglyceryl-10 stearate and hydrogenated lecithin form an orderly arrangement at a higher concentration;

(2) Slowly add petrolatum and the mixture of serial number 7 (composed of polydimethylsiloxane and dimethiconol) under stirring to form a microstructure of liquid crystal oil-in-liquid, to obtain liquid crystal phase A;

(3) Add polyethylene glycol-180, polyethylene glycol-90, polyethylene glycol-14M and sodium hyaluronate into the water phase pot, control the stirring speed between 500rpm and 800rpm, and control the temperature at 70℃ To 75°C to obtain water phase B;

(4) Pump the water phase B into the emulsifying pot, and then pump the liquid crystal phase A into the emulsifying pot, homogenize for 5 minutes, keep the temperature for 30 minutes, control the stirring speed between 300 rpm and 500 rpm, and cool down;

(5) When the temperature is lowered to 60°C, add bis-PEG-18 methyl ether dimethyl silane (commercial product of serial number 4), stir evenly, and continue to cool;

(6) When the temperature is lowered to 50°C, add the mixture of No. 11 (composed of phenoxyethanol and ethylhexylglycerol), the mixture of No. 12 (consisting of caprylic/capric triglyceride, hydrogenated phosphatidylcholine, 1, 2-Pentanediol, glycerin, squalane, shea butter, ceramide 3 and water), tocopherol acetate, the remaining 50% by weight of the mixture of serial number 15 and (daily) flavor, stir well; Discharging and filling.

Comparative example 1

The formula of the bath emollient cream of Comparative Example 1 is shown in Table 3 (without petrolatum).

table 3

(1) Mix 50% by weight of the mixture of serial number 15 (consisting of water, glycerin, Dendrobium nobile stem extract, Sophora flavescens root extract, Echinacea purpurea root extract, Ningxia wolfberry fruit extract, Aloe vera leaf The extract, phenoxyethanol and ethylhexyl glycerin), butanediol, polyglycerol-10 stearate and hydrogenated lecithin are added to the oil phase pot, the stirring speed is controlled between 120rpm and 200rpm, and the temperature is controlled at 70 Between ℃ and 75℃, make polyglyceryl-10 stearate and hydrogenated lecithin form an orderly arrangement at a higher concentration;

(2) Slowly add the mixture of No. 7 (consisting of dimethicone and dimethiconol) with stirring to form a microstructure of oil-in-liquid crystal, and obtain liquid crystal phase A;

(3) Add polyethylene glycol-180, second polyethylene glycol-90, polyethylene glycol-14M and sodium hyaluronate into the water phase pot, control the stirring speed between 500rpm and 800rpm, and control the temperature at Between 70°C and 75°C, water phase B is obtained;

(4) Pump the water phase B into the emulsifying pot, and then pump the liquid crystal phase A into the emulsifying pot, homogenize for 5 minutes, keep the temperature for 30 minutes, control the stirring speed between 300 rpm and 500 rpm, and cool down;

(5) When the temperature is lowered to 60°C, add bis-PEG-18 methyl ether dimethyl silane (commercial product of serial number 4), stir evenly, and continue to cool;

(6) When the temperature is lowered to 50°C, add the mixture of No. 11 (composed of phenoxyethanol and ethylhexyl glycerol), the mixture of No. 12 (consisting of caprylic/capric triglyceride, hydrogenated phosphatidylcholine, 1, 2-Pentanediol, glycerin, squalane, shea butter, ceramide 3 and water), tocopherol acetate, the remaining 50% by weight of the mixture of serial number 15 and (daily) flavor, stir well; Discharging and filling.

Comparative example 2

The formula of the bath emollient cream of Comparative Example 2 is shown in Table 4 (without hydrogenated lecithin).

Table 4

(1) Mix 50% by weight of the mixture of serial number 15 (consisting of water, glycerin, Dendrobium nobile stem extract, Sophora flavescens root extract, Echinacea purpurea root extract, Ningxia wolfberry fruit extract, Aloe vera leaf The extract, phenoxyethanol and ethylhexyl glycerin), butanediol and polyglycerol-10 stearate are added to the oil phase pot, the stirring speed is controlled between 120rpm and 200rpm, and the temperature is controlled between 70℃ and 75℃. In the meantime, make polyglyceryl-10 stearate form an orderly arrangement at a higher concentration;

(2) Under stirring, slowly add petrolatum and the mixture of No. 7 (composed of polydimethylsiloxane and polydimethylsiloxane alcohol) to form a microstructure of liquid crystal oil-in-liquid, to obtain liquid crystal phase A;

(3) Add polyethylene glycol-180, second polyethylene glycol to 90, polyethylene glycol-14M and sodium hyaluronate into the water phase pot, control the stirring speed between 500rpm and 800rpm, and control the temperature at Between 70°C and 75°C, water phase B is obtained;

(4) Pump the water phase B into the emulsifying pot, and then pump the liquid crystal phase A into the emulsifying pot, homogenize for 5 minutes, keep the temperature for 30 minutes, control the stirring speed between 300 rpm and 500 rpm, and cool down;

(5) When the temperature is lowered to 60°C, add bis-PEG-18 methyl ether dimethyl silane (commercial product of serial number 4), stir evenly, and continue to cool;

(6) When the temperature is lowered to 50°C, add the mixture of No. 11 (composed of phenoxyethanol and ethylhexyl glycerol), the mixture of No. 12 (consisting of caprylic/capric triglyceride, hydrogenated phosphatidylcholine, 1, 2-Pentanediol, glycerin, squalane, shea butter, ceramide 3 and water), tocopherol acetate, the remaining 50% by weight of the mixture of serial number 15 and (daily) flavor, stir well; Discharging and filling.

Performance Testing

1. Observing the bath emollient cream of Example 3 of the present application with a polarizing microscope, as shown in FIG. 1, it can be seen that it has a layered liquid crystal structure.

2. Recruit 70 volunteers, aged 18 to 48 years old, divided into 7 groups, 10 people in each group. Before the test, use the multifunctional skin tester MPA4 of German CK company to test the moisture content of the volunteers' left and right cheeks. , Arm moisture content, abdominal moisture content, leg moisture content, and take the average value;

Let the volunteers take a normal bath, and then add the bath moisturizer prepared in Examples 1 to 6 and Comparative Examples 1 to 2 into the beauty shower, and rinse for 1 minute;

Dry the body surface moisture. After 5 minutes and 2 hours, use the multifunctional skin tester MPA4 of German CK company to test the moisture content of the left and right cheeks, arms, abdomen, and legs of the volunteers, and take the average value;

Let the volunteers take a normal bath, and then add the bath moisturizer prepared in Examples 1 to 6 and Comparative Examples 1 to 2 to the beauty shower, and rinse for 1 min;

Dry the body surface moisture. After 5 minutes and 2 hours, use the multifunctional skin tester MPA4 of German CK company to test the moisture content of the left and right cheeks, arms, abdomen, and legs of the volunteers. take the average.

In the process of measuring skin moisture content, the relative humidity of the controlled environment is (30±5%) and the temperature is (25±1°C).

During the bathing process, control the water temperature in the range of 38°C to 42°C, and control the water pressure in the range of 0.1MPa to 0.3MPa.

The test results are shown in Figure 2 and Table 5. The comparison diagram of the water content of the volunteers' skin before and after using the bath moisturizer of Example 3 of the present application (dissolved in water after being added to the beauty shower to form a beauty lotion) is shown in FIG. 3.

table 5

To	Moisture content after 5min (%)	Moisture content after 2h (%)	Moisture content reduction rate (%)
Example 1	32	22.5	29.68
Example 2	32.5	23.6	27.38
Example 3	35.1	28.3	19.37
Example 4	32	21.2	33.75
Example 5	31.4	20.8	33.75
Example 6	31	20.2	34.83
Comparative example 1	25.6	15.1	41.01
Comparative example 2	22.7	12.5	44.93

It can be seen that, compared with the product of the comparative example, the moisture content of the volunteers’ skin is significantly higher after the bath moisturizer of the example of the application is used, and within 5min to 2h after the bath, the example of the application is adopted After the bath moisturizing cream, the reduction rate of the volunteer's skin moisture content was significantly slower, indicating that the bath moisturizing cream in the examples of the present application has significantly better moisturizing and moisturizing effects.

Volunteers use the bath moisturizer prepared in the examples of this application and the comparative example once a day, rinse for 1 min each time, and use it continuously for 4 weeks. Before use and four weeks after use, use the multifunctional skin tester MPA4 of German CK company, respectively Test the moisture content of the left and right cheeks, arms, abdomen, and legs of volunteers, and take the average value. The test results are shown in Table 6.

Table 6

To	Number of people	Moisture content before use (%)	Moisture content after use (%)
Example 1	10	29.4%	53%
Example 2	10	31%	53%
Example 3	10	31.6%	68%
Example 4	10	30.2%	55%
Example 5	10	28.8%	52%

Example 6	10	29.1%	49%
Comparative example 1	10	29.3%	42%
Comparative example 2	10	28.9%	30%

From Tables 5 to 6 and Figures 2 to 3, it can be seen that the bath emollient cream of the examples of the present application can significantly increase the moisture content of the user's skin, and the moisturizing effect is significantly better than the bath emollient cream of the comparative example.

Table 7 shows the overall sensory evaluation of volunteers on the body lotion for bath prepared in Example 3.

Table 7

It can be seen that most volunteers are satisfied with the appearance, taste, moisturizing effect, nourishing effect and allergenicity of the bath moisturizer prepared in Example 3 of the present application.

In addition, after testing, the first polyethylene glycol, the second polyethylene glycol, the oil-based emollient moisturizer, water-soluble silicone wax, and multi-component other than those listed in Table 1 and Table 2 are used in this application. Alcohol, silicone moisturizing lubricant, macromolecular moisturizing agent, polyglycerin emulsifier, and third polyethylene glycol replace the appearance, taste, and taste of the bath moisturizer prepared by substituting the components in Table 1 and Table 2. The moisturizing effect, moisturizing effect, nourishing effect and allergenicity are similar to the bath moisturizing cream prepared in Examples 1 to 6 of the present application, and specific experimental data will not be listed here.

3. Service life test

During the test, the 15g bath moisturizing cream prepared in the example of this application was placed in the hand shower S177013 of Jiumu moisturizing and sprayed on the user, and MTG’s Olbeu shower and its matching CL collagen beauty liquid ( Paste, 15g) For comparison, when spraying, the water temperature is controlled within the range of 38°C to 42°C, and the water pressure is controlled at 0.1MPa (the water pressure can be adjusted within the range of 0.1MPa to 0.3MPa during use).

The test results show that the 15g bath moisturizer prepared in the examples of this application can be used continuously for 6 hours, while the 15g CL collagen beauty liquid for comparison can be used continuously for 4 hours. Therefore, the use of the bath moisturizer in the examples of this application Longer life.

The present disclosure is an example of the principles of the embodiments of the present application, and does not limit the present application in any form or substance, or limit the present application to specific embodiments. For those skilled in the art, it is obvious that the elements, methods, and systems of the technical solutions of the embodiments of the present application can be changed, changed, modified, and evolved without departing from the embodiments and technical solutions of the present application as described above. , As defined in the claims, the principle, spirit and scope. The implementation schemes of these changes, changes, modifications, and evolutions are all included in the equivalent embodiments of the present application, and these equivalent embodiments are all included in the scope defined by the claims of the present application. Although the embodiments of the present application can be embodied in many different forms, some embodiments of the present application are described in detail here. In addition, the examples of the present application include any possible combination of some or all of the various embodiments described herein, and are also included in the scope of the present application defined by the claims. All patents, patent applications and other cited materials mentioned in this application or anywhere in any cited patent, cited patent application or other cited materials are hereby incorporated by reference in their entirety.

The above disclosure is provided as illustrative rather than exhaustive. For those skilled in the art, this description will suggest many changes and alternatives. All these alternatives and variations are intended to be included within the scope of the claims, where the term "including" means "including, but not limited to."

This completes the description of the alternative implementations of the present application. Those skilled in the art may recognize other equivalent transformations of the embodiments described herein, and these equivalent transformations are also encompassed by the claims attached herein.

Claims (10)

1. A bath moisturizing cream with high moisturizing effect, including: first polyethylene glycol, oil-based emollient moisturizer, water-soluble silicone wax, polyol, silicone moisturizing lubricant, polydimethylsiloxane Alcohol, hydrogenated lecithin, macromolecular humectant, ceramide, polyglycerin emulsifier, the average molecular weight of the first polyethylene glycol is 4400 to 10,000.
2. The bath emollient cream according to claim 1, wherein, by weight, the content of the following components in the bath emollient cream is:

   
3. The bath emollient cream according to claim 1 or 2, further comprising a second polyethylene glycol, the average molecular weight of the second polyethylene glycol is 1350 to 4400, and by weight, the second polyethylene glycol The content of glycol in the bath moisturizer is 12% to 20%;

   Optionally, the first polyethylene glycol is selected from any one or more of polyethylene glycol-180, polyethylene glycol-150 and polyethylene glycol-200, and the second polyethylene glycol The alcohol is selected from any one or more of polyethylene glycol-90, polyethylene glycol-75 and polyethylene glycol-100.
4. The bath emollient cream according to any one of claims 1 to 3, wherein the oil-based emollient moisturizer is selected from any one or more of petrolatum, vegetable oil, and synthetic oil;

   Optionally,

   The water-soluble silicone wax is selected from the group consisting of bis-PEG-18 methyl ether dimethyl silane, bis-PEG-15 methyl ether polydimethylsiloxane and bis-PEG-12 polydimethylsiloxane beeswax Any one or more of the acid esters;

   The polyhydric alcohol is selected from any one or more of butanediol, glycerin, 1,2-propanediol, 1,3-propanediol, methylpropanediol and dipropylene glycol;

   The silicone moisturizing lubricant is selected from any one of polydimethylsiloxane, phenyltrimethicone and diphenylsiloxyphenyltrimethicone or Multiple

   The macromolecular humectant is selected from any one or more of sodium hyaluronate, dextran and polyglutamic acid;

   The ceramide is ceramide 3, optionally also encapsulated ceramide 3;

   The polyglycerol emulsifier is selected from any one or more of polyglycerol-10 fatty acid ester, polyglycerol-6 distearate and polyglycerol-2 isostearate; and optionally, The polyglyceryl-10 fatty acid ester is selected from polyglyceryl-10 laurate, polyglyceryl-10 stearate, polyglyceryl-10 distearate, polyglyceryl-10 isostearate and polyglycerol -10 Any one or more of myristate.
5. The bath emollient cream according to any one of claims 1 to 4, further comprising tocopherol acetate, and by weight, the content of the tocopherol acetate in the bath emollient cream is 0.1 % To 0.6%.
6. The bath moisturizer according to any one of claims 1 to 5, further comprising any one or more of plant extract moisturizer, third polyethylene glycol, preservative, hydrogenated phosphatidylcholine and flavor Species, the average molecular weight of the third polyethylene glycol is 100,000 to 1,000,000.
7. The bath emollient cream according to claim 6, wherein the plant extract moisturizer is selected from the group consisting of Dendrobium nobile stem extract, Sophora flavescens root extract, Echinacea purpurea root extract, Ningxia wolfberry fruit extract, Any one of Aloe vera leaf extract, rosemary leaf extract, Matricaria flower extract, Glycyrrhiza glabra root extract, tea extract, Polygonum cuspidatum root extract, Centella asiatica extract, and Scutellaria baicalensis root extract Kind or more

   Optionally,

   The third polyethylene glycol is selected from any one or more of polyethylene glycol-14M, polyethylene glycol-7M and polyethylene glycol-20M;

   The preservative is selected from any one or more of phenoxyethanol, methyl paraben, propyl paraben and imidazolidinyl urea.
8. The bath emollient cream according to claim 7, wherein the content of the following components in the bath emollient cream by weight is:

   
9. The preparation method of the bath emollient cream according to any one of claims 1 to 8, comprising:

   (1) Add polyol, hydrogenated lecithin and polyglycerin emulsifier into the oil phase pot, and stir at the first set speed and first set temperature to make the hydrogenated lecithin and the polyglycerin The emulsifier forms an orderly arrangement;

   (2) Under stirring, slowly add oil-based emollient moisturizer, silicone-based moisturizing lubricant and dimethiconol to the mixture obtained in step (1) to form an oil-in-liquid microstructure to obtain a liquid crystal phase A;

   (3) Add the first polyethylene glycol, the macromolecular humectant, and optionally the second polyethylene glycol and the third polyethylene glycol into the water phase pot, and set the speed at the second setting speed and the second setting Stir at temperature to obtain water phase B;

   (4) Sequentially add the water phase B obtained in step (3) and the liquid crystal phase A obtained in step (2) into the emulsifying pot, homogenize, keep warm, control the stirring speed within the range of the third set speed, and cool down;

   (5) When the temperature of the mixture in step (4) is cooled to the third set temperature, add water-soluble silicon wax, stir evenly, and continue to cool;

   (6) When the mixture in step (5) is cooled to the fourth set temperature, add ceramide and optionally preservatives, hydrogenated phosphatidylcholine, tocopherol acetate, plant extract moisturizer, flavor, and stir Uniform; discharging and filling.
10. The preparation method according to claim 9, wherein the first set speed is 120 rpm to 200 rpm, and the first set temperature is 70°C to 75°C;

    Optionally, the second set speed is 500 rpm to 800 rpm, and the second set temperature is 70° C. to 75° C.;

    The third set temperature is 60°C to 65°C, and the fourth set temperature is 50°C to 55°C;

    In step (4), the homogenization time is 5 min to 8 min, the heat preservation time is 25 min to 35 min, and the third set speed is 300 rpm to 500 rpm.

Images