CN115887304B - Emulsifier composition, skin care cream containing same and preparation method of skin care cream - Google Patents
Emulsifier composition, skin care cream containing same and preparation method of skin care cream Download PDFInfo
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Abstract
The invention relates to an emulsifier composition, skin care cream containing the emulsifier composition and a preparation method thereof, and belongs to the technical field of skin care products and preparation thereof. The emulsifier composition provided by the invention comprises the following components in parts by weight: 50-60 parts of polyglycerol-3 stearate, 2-8 parts of olive oil, 5-10 parts of cetyl alcohol and 22-30 parts of stearoyl lactyl sodium lactate. Compared with the prior emulsification technology, the emulsifier composition provided by the invention is more stable, safer and milder, and the formed liquid crystal structure can exert various effects of the product, such as enhancing moisture retention. The skin care cream prepared from the emulsifier composition has good moisturizing effect.
Description
Technical Field
The invention belongs to the technical field of skin care products and preparation thereof, and relates to an emulsifier composition, skin care cream containing the emulsifier composition and a preparation method thereof.
Background
The types of emulsifiers are currently classified as anionic, cationic, nonionic. The cationic emulsifier is easy to perform flocculation reaction with anionic substances during application, and has high application difficulty and strong irritation; the anionic emulsifier has strong emulsifying capacity, but the particle size uniformity is not enough, and the irritation is larger; most nonionic emulsifiers contain peg chains, and can introduce dioxane as a byproduct in synthesis; and part of nonionic emulsifier with other hydrophilic branches has weak emulsifying capacity.
In order to make the emulsification effect better, the situation of using the emulsifier together exists in the market. The emulsification to form liquid crystal is an effective way to improve the emulsifying property and enhance the efficacy. It is difficult to produce a product having a liquid crystal structure, excellent stability, excellent appearance, and skin feel using a single emulsifier.
At present, the composite emulsifier in the market is mainly compounded by peg nonionic emulsifier, partial glucosyl modified emulsifier, sucrose ester emulsifier and phosphate ester emulsifier, and the performance and the sources are not wide and comprehensive enough.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an emulsifier composition which is more stable, safer and milder than the prior emulsification technology and can bring various effects of the product into play in the formed liquid crystal structure, skin care cream containing the emulsifier composition and a preparation method thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides an emulsifier composition comprising the following components in parts by weight: 50-60 parts of polyglycerol-3 stearate, 2-8 parts of olive oil, 5-10 parts of cetyl alcohol and 22-30 parts of stearoyl lactyl sodium lactate.
The sodium stearoyl lactylate has a high HLB value, the HLB value of the whole composition is regulated and controlled to be suitable for being used as an oil-in-water product, the polyglycerol-3 stearate can provide a good low HLB value to emulsify grease, and the lipophilic affinity of a stearyl group and the grease is utilized to solve the problem of uniform emulsification. The polyglycerol-3 stearate and the sodium stearoyl lactylate respectively supplement respective performance defects, the obtained composition is more stable, safer and milder than the prior emulsification technology, and the formed liquid crystal structure can also better exert various effects of the product, such as enhancing moisture retention.
The invention combines the raw materials in the specific weight part range to obtain the emulsifier composition capable of forming the liquid crystal structure, and the skin care cream prepared from the emulsifier composition has excellent liquid crystal structural integrity and uniform particle size. Under the interaction of the polyglycerol-3 stearate and the sodium stearoyl lactylate, the effects of the polyglycerol-3 stearate and the sodium stearoyl lactylate are fully exerted, and the number of visible liquid crystals in the skin cream can be increased, namely the polyglycerol-3 stearate and the sodium stearoyl lactylate have a synergistic effect in the aspect of increasing the number of visible liquid crystals in the skin cream.
As a preferred embodiment of the emulsifier composition of the invention, the mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate is polyglycerol-3 stearate: stearoyl lactyl sodium lactate= (52-56): (24-30).
When the mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate is within the preferred range of the invention, the prepared emulsifier composition has higher liquid crystal integrity, uniform particle size and more visible liquid crystal quantity.
As a preferred embodiment of the emulsifier composition of the invention, the mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate is polyglycerol-3 stearate: stearoyl lactyl sodium lactate=56: 24.
when the mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate is the optimal ratio, the prepared emulsifier composition has complete liquid crystal, uniform particle size and the largest quantity of visible liquid crystals.
In a second aspect, the present invention provides a process for preparing the emulsifier composition comprising the steps of:
s1, heating and dissolving olive fruit oil and polyglycerol-3 stearate completely;
s2, adding cetyl alcohol and sodium stearoyl lactylate, completely melting, and uniformly stirring;
s3, uniformly dispersing, granulating, cooling and solidifying to obtain the emulsifier composition.
The preparation method of the emulsifier composition is simple to operate, the sources of raw materials are wide, the cost performance is high, the raw materials with different sources are used for preparing the emulsifier with the polyglycerol hydrophilic chain, the long carbon chain weak acid source anion emulsifier is matched, the selection range of the material is enlarged, meanwhile, the liquid crystal emulsifier with uniform particle size can be prepared, the safety, the mildness, the stability and the like are improved, and the skin feel different from that of the skin cream emulsion in the market can be provided when the skin cream emulsion is prepared.
In a third aspect, the present invention provides a skin care cream comprising the above-described emulsifier composition.
The skin care cream contains the emulsifier composition, so that the skin care cream has different skin feel in use from the skin care cream emulsion in the market, and the moisturizing effect of the skin care cream is enhanced.
As a preferred embodiment of the skin care cream, the mass percentage of the emulsifier composition in the skin care cream is 3-10%.
The emulsifier composition with the specific mass percentage content is added, so that the prepared skin cream has a good moisturizing effect.
As a preferred embodiment of the skin care cream, the mass percentage of the emulsifier composition in the skin care cream is 5-10%.
The emulsifier composition with the specific mass percentage content is added, so that the prepared skin cream has better moisturizing effect.
As a preferred embodiment of the skin care cream of the present invention, the skin care cream further comprises the following components in percentage by mass: 20 to 30 percent of emollient, 2 to 3 percent of skin conditioning agent, 4.5 to 7.5 percent of humectant, 0.2 to 0.3 percent of thickener, 0 to 0.05 percent of chelating agent, 0.5 to 1 percent of preservative, 0 to 0.1 percent of aromatic and the balance of water.
The skin care cream prepared by selecting the specific component proportions has better moisturizing effect.
As a preferred embodiment of the skin care cream of the present invention, the skin care cream comprises at least one of the following (1) to (7):
(1) The emollient comprises at least one of olive oil, caprylic capric triglyceride, and polydimethylsiloxane;
(2) The skin conditioning agent comprises at least one of stearyl alcohol and behenyl alcohol;
(3) The humectant comprises at least one of glycerol, glyceroglycosides, saccharide isomer, hydroxyethyl urea, trehalose, xylitol and betaine;
(4) The thickener comprises at least one of xanthan gum and carbomer;
(5) The chelating agent is disodium EDTA;
(6) The preservative comprises at least one of p-hydroxyacetophenone, 1, 2-hexanediol, phenoxyethanol, ethylhexyl glycerol, 1, 2-pentanediol and chlorobenzeneglycolether;
(7) The aromatic is rose essential oil.
In a fourth aspect, the invention provides a method for preparing the skin care cream, comprising the following steps:
s1, heating the emulsifier composition, the skin-conditioning agent and the skin conditioning agent until the emulsifier composition, the skin-conditioning agent and the skin conditioning agent are completely melted to obtain an oil phase;
s2, heating and dissolving water, glycerol in the humectant, a thickening agent and a chelating agent uniformly to obtain a water phase;
s3, pouring the oil phase into the water phase, homogenizing and uniformly stirring;
s4, cooling, adding the preservative and the aromatic, and uniformly stirring;
s5, cooling, and adding a humectant to obtain the skin care cream.
The preparation method of the skin care cream provided by the invention is simple to operate and low in cost, and the prepared skin care cream can be uniformly coated on the surface of skin in the use process, provides different skin feeling in use compared with the skin care cream emulsion in the market, and plays a role in moisturizing.
Compared with the prior art, the invention has the beneficial effects that:
1. in the emulsifier composition, the sodium stearoyl lactylate has a high HLB value, the HLB value of the whole composition is regulated and controlled to be suitable for being used as an oil-in-water product, the polyglycerol-3 stearate can provide a good low HLB value to emulsify grease, and the lipophilic affinity of the stearyl group and the grease is utilized to solve the problem of uniform emulsification. The polyglycerol-3 stearate and the sodium stearoyl lactylate respectively supplement respective performance defects, the obtained composition is more stable, safer and milder than the prior emulsification technology, and the formed liquid crystal structure can also exert various effects of the product, such as enhancing moisture retention;
2. the emulsifier composition combines polyglycerol-3 stearate and sodium stearoyl lactylate according to a specific mass ratio, and then is compounded with olive oil and cetyl alcohol to obtain the emulsifier composition, and the skin cream prepared from the emulsifier composition has excellent liquid crystal structural integrity and uniform particle size. Under the interaction of the polyglycerol-3 stearate and the sodium stearoyl lactylate, the effects of the polyglycerol-3 stearate and the sodium stearoyl lactylate are fully exerted, and the number of visible liquid crystals in the skin cream can be increased, namely the polyglycerol-3 stearate and the sodium stearoyl lactylate have a synergistic effect in the aspect of increasing the number of visible liquid crystals in the skin cream;
3. the preparation method of the emulsifier composition is simple to operate, the sources of raw materials are wide, the cost performance is high, the raw materials with different sources are used for preparing the emulsifier with the polyglycerol hydrophilic chain, the long carbon chain weak acid source anion emulsifier is matched, the selection range of the material is enlarged, meanwhile, the liquid crystal emulsifier with uniform particle size can be prepared, the safety, the mildness, the stability and the like are improved, and the skin feel different from that of the skin cream emulsion in the market can be provided when the skin cream emulsion is prepared;
4. the skin care cream contains the emulsifier composition, so that the skin care cream has different skin feel in use from the skin care cream emulsion in the market, and the moisturizing effect of the skin care cream is enhanced;
5. the preparation method of the skin care cream provided by the invention is simple to operate and low in cost, and the prepared skin care cream can be uniformly coated on the surface of skin in the use process, provides different skin feeling in use compared with the skin care cream emulsion in the market, and plays a role in moisturizing.
Detailed Description
For a better description of the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following specific examples.
Examples 1 to 5
Examples 1 to 5 are the emulsifier compositions according to the invention, the formulations (parts by weight) of which are shown in Table 1.
The preparation method of the emulsifier composition described in examples 1 to 5 comprises:
s1, heating olive oil and polyglycerol-3 stearate to 65-80 ℃ and completely dissolving;
s2, adding cetyl alcohol and sodium stearoyl lactylate, completely melting, and uniformly stirring;
s3, uniformly dispersing and granulating through a dropping granulation process, cooling to 40-45 ℃ and solidifying into tablet-shaped particles to obtain the emulsifier composition.
TABLE 1
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Polyglycerol-3 stearate | 50 | 60 | 56 | 52 | 50 |
| Olive fruit oil | 2 | 8 | 6 | 4 | 8 |
| Cetyl alcohol | 5 | 10 | 5.6 | 5 | 6 |
| Stearoyl lactyl sodium lactate | 30 | 22 | 24 | 30 | 28 |
Examples 6 to 12
Examples 6 to 12 are skin care creams according to the invention, the formulation (mass%) of which is shown in table 2, wherein the emulsifier composition according to example 6 is the emulsifier composition according to example 1; the emulsifier composition described in example 7 is the emulsifier composition described in example 2; the emulsifier composition described in example 8 is the emulsifier composition described in example 3; the emulsifier composition described in example 9 is the emulsifier composition described in example 4; the emulsifier composition of example 10 is the emulsifier composition of example 5; the emulsifier composition of example 11 is the emulsifier composition of example 3; the emulsifier composition described in example 12 is the emulsifier composition described in example 3.
The preparation method of the skin care cream described in examples 6 to 12 comprises the following steps:
s1, heating the emulsifier composition, the skin-conditioning agent and the skin conditioning agent until the emulsifier composition, the skin-conditioning agent and the skin conditioning agent are completely melted to obtain an oil phase;
s2, heating water, glycerol in the humectant, a thickening agent and a chelating agent to 80-85 ℃, and uniformly dissolving to obtain a water phase;
s3, pouring the oil phase into the water phase, homogenizing for 3-5min until the oil phase is uniform and stirring;
s4, cooling to 50-60 ℃, adding preservative and aromatic, and uniformly stirring;
s5, cooling to 40-45 ℃, adding the humectant, and uniformly stirring to obtain the skin care cream.
TABLE 2
Comparative example 1
Comparative example 1 is an emulsifier composition according to the invention, the difference between comparative example 1 and example 1 is: comparative example 1 does not contain sodium stearoyl lactylate.
The emulsifier composition of comparative example 1 comprises the following components in parts by weight: 93 parts of polyglycerol-3 stearate, 2 parts of olive oil and 5 parts of cetyl alcohol.
Comparative example 2
Comparative example 2 is an emulsifier composition according to the invention, the difference between comparative example 2 and example 1 is: comparative example 2 does not contain polyglycerol-3 stearate.
The emulsifier composition of comparative example 1 comprises the following components in parts by weight: 2 parts of olive fruit oil, 5 parts of cetyl alcohol and 93 parts of sodium stearoyl lactylate.
Comparative example 3
Comparative example 3 is an emulsifier composition according to the invention, the difference between comparative example 3 and example 1 is: the mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate in comparative example 3 is the polyglycerol-3 stearate: stearoyl lactyl sodium lactate = 30:64.
the emulsifier composition of comparative example 3 comprises the following components in parts by weight: 30 parts of polyglycerol-3 stearate, 2 parts of olive oil, 5 parts of cetyl alcohol and 64 parts of sodium stearoyl lactylate.
Comparative example 4
Comparative example 4 is an emulsifier composition according to the invention, the difference between comparative example 4 and example 3 is: comparative example 4 the polyglycerol-3 stearate was replaced by glycerol monostearate, the remainder being identical.
Comparative example 5
Comparative example 5 is an emulsifier composition according to the invention, the difference between comparative example 5 and example 3 is: comparative example 5 the sodium stearoyl lactylate was replaced with potassium laurylphosphate, the remainder being the same.
Comparative example 6
Comparative example 6 is a skin cream according to the present invention, and the difference between comparative example 6 and example 8 is: the emulsifier composition described in comparative example 6 was the emulsifier composition described in comparative example 1, except that the remainder was the same.
Comparative example 7
Comparative example 7 is a skin cream according to the present invention, and the difference between comparative example 7 and example 8 is: the emulsifier composition described in comparative example 7 was the emulsifier composition described in comparative example 2, except that the remainder was the same.
Comparative example 8
Comparative example 8 is a skin cream according to the present invention, and the difference between comparative example 8 and example 8 is: the emulsifier composition described in comparative example 8 was the emulsifier composition described in comparative example 3, except that the remainder was the same.
Comparative example 9
Comparative example 9 is a skin cream according to the present invention, and the difference between comparative example 9 and example 8 is: the emulsifier composition described in comparative example 9 and the emulsifier composition described in comparative example 4 are the same as the rest.
Comparative example 10
Comparative example 10 is a skin cream according to the present invention, and the difference between comparative example 10 and example 8 is: the emulsifier composition described in comparative example 10 was the emulsifier composition described in comparative example 5, except that the remainder was the same.
Effect example 1
The liquid crystal formation was observed by using a polarizing microscope for the skin care creams described in examples 6 to 12 and comparative examples 6 to 10, and the results are shown in Table 3.
TABLE 3 Table 3
| Group of | Number of visible liquid crystals | Integrity of liquid crystal | Uniformity of particle size |
| Example 6 | 490 | ○ | √ |
| Example 7 | 510 | √ | √ |
| Example 8 | 620 | √ | √ |
| Example 9 | 560 | √ | √ |
| Example 10 | 550 | √ | √ |
| Example 11 | 310 | √ | ○ |
| Example 12 | 780 | √ | √ |
| Comparative example 6 | 0 | / | / |
| Comparative example 7 | 120 | × | × |
| Comparative example 8 | 230 | ○ | ○ |
| Comparative example 9 | 150 | ○ | × |
| Comparative example 10 | 170 | ○ | × |
Integrity degree: and v represents complete, o represents partial complete, x represents incomplete.
Degree of uniformity: and v represents uniformity, o represents partial uniformity, and x represents non-uniformity.
By comparison, the amount of visible liquid crystal of the skin cream of examples 6-12 is significantly higher than that of comparative examples 6-10, indicating that the amount of visible liquid crystal of the skin cream is significantly increased within the specific mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate of the present invention, wherein the amount of visible liquid crystal of the skin cream of example 12 is the greatest; also, the emulsifier composition of the skin cream of comparative example 6 does not contain sodium stearoyl lactylate, which does not form liquid crystals; the emulsifier composition of the skin care cream of comparative example 7 does not contain polyglycerol-3 stearate, and the liquid crystal formed by the emulsifier composition is incomplete in degree of liquid crystal and nonuniform in particle size compared with that of example 6; therefore, if the polyglycerol-3 stearate or the sodium stearoyl lactylate disclosed by the invention is absent, the number of visible liquid crystals can be obviously reduced, and the integrity of the liquid crystals and the uniformity of the particle sizes of the liquid crystals are obviously affected. The mass ratio of the polyglycerol-3 stearate to the sodium stearoyl lactylate in the emulsifier composition of the skin cream of comparative example 8 is not within the mass ratio range of the present invention, and the liquid crystal formed therefrom has only a partially uniform particle size as compared with example 6. The emulsifier composition of the skin cream of comparative example 9, in which the polyglyceryl-3 stearate was replaced with glyceryl monostearate, had only partially intact liquid crystals and had non-uniform particle size compared with example 8, and the emulsifier composition of the skin cream of comparative example 10, in which the sodium stearoyl lactylate was replaced with potassium lauroyl lactylate, had only partially intact liquid crystals and had non-uniform particle size compared with example 8, showed that the replacement of the polyglyceryl-3 stearate or sodium stearoyl lactylate of the present invention with other ingredients also significantly reduced the amount of visible liquid crystals, significantly affecting the integrity of the liquid crystals and the uniformity of particle size of the liquid crystals. The above results demonstrate that the polyglycerol-3 stearate and sodium stearoyl lactylate of the present invention have a synergistic effect in improving the number of visible liquid crystals, the integrity of the liquid crystals and the uniformity of the particle size of the liquid crystals.
Effect example 2
The skin care creams described in examples 6 to 12 and comparative examples 6 to 10 were subjected to a moisturizing performance test, randomly selecting 48 persons, randomly dividing the skin care cream into 12 groups of 4 persons each, and continuously using the skin care cream for 28 days to perform a percutaneous dehydration TEWL (g/h/m 2) and a cutin moisture content skin test; the results are shown in Table 4.
TABLE 4 Table 4
From the results, compared with comparative examples 6 to 10, the skin cream of examples 6 to 12 has significantly reduced average value of percutaneous water loss (g/h/m 2), significantly improved average value of water content of cutin, and shows that the skin cream prepared by the emulsifier composition of the invention has better moisturizing performance.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. The emulsifier composition is characterized by comprising the following components in parts by weight: 50-60 parts of polyglycerol-3 stearate, 2-8 parts of olive oil, 5-10 parts of cetyl alcohol and 22-30 parts of stearoyl lactyl sodium lactate.
2. The emulsifier composition according to claim 1, wherein the mass ratio of polyglycerol-3 stearate to sodium stearoyl lactylate is polyglycerol-3 stearate: stearoyl lactyl sodium lactate= (52-56): (24-30).
3. The emulsifier composition according to claim 1, wherein the mass ratio of polyglycerol-3 stearate to sodium stearoyl lactylate is polyglycerol-3 stearate: stearoyl lactyl sodium lactate=56: 24.
4. a process for the preparation of an emulsifier composition according to any one of claims 1 to 3, comprising the steps of:
s1, heating and dissolving olive fruit oil and polyglycerol-3 stearate completely;
s2, adding cetyl alcohol and sodium stearoyl lactylate, completely melting, and uniformly stirring;
s3, uniformly dispersing, granulating, cooling and solidifying to obtain the emulsifier composition.
5. A liquid crystal skin cream comprising the emulsifier composition of any one of claims 1 to 3; the mass percentage of the emulsifier composition in the liquid crystal skin care cream is 3-10%;
the liquid crystal skin care cream also comprises the following components in percentage by mass: 20 to 30 percent of emollient, 2 to 3 percent of skin conditioning agent, 4.5 to 7.5 percent of humectant, 0.2 to 0.3 percent of thickener, 0 to 0.05 percent of chelating agent, 0.5 to 1 percent of preservative, 0 to 0.1 percent of aromatic and the balance of water.
6. The liquid crystal skin care cream according to claim 5, wherein the mass percentage of the emulsifier composition in the skin care cream is 5-10%.
7. The liquid crystal skin care cream according to claim 5, wherein at least one of the following (1) to (7):
(1) The emollient comprises at least one of olive oil, caprylic capric triglyceride, and polydimethylsiloxane;
(2) The skin conditioning agent comprises at least one of stearyl alcohol and behenyl alcohol;
(3) The humectant comprises at least one of glycerol, glyceroglycosides, saccharide isomer, hydroxyethyl urea, trehalose, xylitol and betaine;
(4) The thickener comprises at least one of xanthan gum and carbomer;
(5) The chelating agent is disodium EDTA;
(6) The preservative comprises at least one of p-hydroxyacetophenone, 1, 2-hexanediol, phenoxyethanol, ethylhexyl glycerol, 1, 2-pentanediol and chlorobenzeneglycolether;
(7) The aromatic is rose essential oil.
8. The method for preparing the liquid crystal skin care cream according to claim 7, comprising the following steps:
s1, heating the emulsifier composition, the skin-conditioning agent and the skin conditioning agent until the emulsifier composition, the skin-conditioning agent and the skin conditioning agent are completely melted to obtain an oil phase;
s2, heating and dissolving water, glycerol in the humectant, a thickening agent and a chelating agent uniformly to obtain a water phase;
s3, pouring the oil phase into the water phase, homogenizing and uniformly stirring;
s4, cooling, adding the preservative and the aromatic, and uniformly stirring;
s5, cooling, and adding a humectant to obtain the liquid crystal skin care cream.
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| EP2243462A1 (en) * | 2009-04-20 | 2010-10-27 | Dr. Straetmans GmbH | Emulgator system |
| CN103585040A (en) * | 2013-10-31 | 2014-02-19 | 天津郁美净集团有限公司 | Emulsion composition used for water resistant liquid crystal cosmetics and application thereof |
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