CN114146005B

CN114146005B - Stick-shaped skin care product for moisturizing and preparation method thereof

Info

Publication number: CN114146005B
Application number: CN202111512909.1A
Authority: CN
Inventors: 夏威; 李金伟; 洪金; 刘晓慧
Original assignee: Shanghai Co Fun Biotech Co ltd
Current assignee: Shanghai Co Fun Biotech Co ltd
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2023-09-26
Anticipated expiration: 2041-12-11
Also published as: CN114146005A

Abstract

The application relates to the technical field of skin care products, and particularly discloses a bar-shaped skin care product for moisturizing and a preparation method thereof. A bar-shaped skin care product for moisturizing comprises the following raw materials in percentage by weight: 14-40% of an emollient, 4-29% of a humectant, 2-20% of a skin conditioning agent, 1-10% of a thickening agent, 1-10% of an emulsifying agent, 0.5-1% of a preservative and 30-50% of water; the thickener comprises the following components in percentage by weight (3-5): (2-3): 1, a second synthetic wax, and a third synthetic wax; wherein the melting range of the first synthetic wax is (68-72) DEG C- (83-87); the initial melting temperature and the final melting temperature of the melting process of the second synthetic wax are lower than those of the first synthetic wax; the primary melting temperature and the final melting temperature of the melting process of the third synthetic wax are lower than those of the second synthetic wax. The product of the application has the advantages of convenient and sanitary use process and high use smoothness.

Description

Stick-shaped skin care product for moisturizing and preparation method thereof

Technical Field

The application relates to the technical field of skin care products, in particular to a bar-shaped skin care product for moisturizing and a preparation method thereof.

Background

Skin is one of the important organs of human body, has the functions of protecting the body, perspiration, feeling cold and hot and pressure, and is also a sign for directly expressing the health and aging of the human body. The stratum corneum, the outermost layer of the skin, is a natural barrier for the human body and has an important meaning for retaining moisture in the skin, and it is generally considered that the moisture content of the stratum corneum should be between 12 and 20%, and when the moisture content is less than 10%, the skin may show dryness, roughness, or even chapping. In order to make the facial skin reach a better state for the moisture in the horny layer of the face, a moisturizing and moisturizing skin care product is generated.

The skin care products on the market are mostly presented in the form of water, milk and cream, and when the skin care product is used, the water, the milk and the cream are spread on the face in an auxiliary way through the palm, and then the skin care product is massaged to promote absorption so as to achieve the purpose of skin care.

Aiming at the related technology, the applicant considers that the use process of the water, milk and cream skin care products is complicated, and the skin care products can remain on the palm, so that certain waste is caused.

Disclosure of Invention

The application provides a bar-shaped skin care product for moisturizing and a preparation method thereof, which are used for simplifying the use process of the skin care product, reducing the waste of the skin care product and improving the cleanliness of the skin care product in the use process.

In a first aspect, the application provides a bar-shaped skin care product for moisturizing, which adopts the following technical scheme:

a bar-shaped skin care product for moisturizing comprises the following raw materials in percentage by weight: 14-40% of an emollient, 4-29% of a humectant, 2-20% of a skin conditioning agent, 1-10% of a thickening agent, 1-10% of an emulsifying agent, 0.5-1% of a preservative and 30-50% of water;

the thickener comprises the following components in percentage by weight (3-5): (2-3): 1, a second synthetic wax, and a third synthetic wax; wherein the melting range of the first synthetic wax is (68-72) DEG C- (83-87); the initial melting temperature of the melting process of the second synthetic wax is lower than that of the first synthetic wax, and the final melting temperature is lower than that of the first synthetic wax; the primary melting temperature of the melting process of the third synthetic wax is lower than that of the second synthetic wax, and the final melting temperature is lower than that of the second synthetic wax.

By adopting the technical scheme, the stick-shaped skin care product is a water-in-oil system, the thickening agent is added into the water-in-oil system, the third synthetic wax in the thickening agent is melted first, then the second synthetic wax is melted, finally the third synthetic wax is melted, and the three different melting ranges of the synthetic waxes are distributed and melted to be matched with each other, so that on one hand, the emulsion stability in the skin care product preparation process is ensured, on the other hand, the gradual thickening and hardening of the skin care product system are realized under the action of the gradual melting synthetic wax, the stick-shaped skin care product is formed in a mold, and the stick-shaped skin care product is directly smeared on a use part uniformly when in use, and the smearing and massaging by a user are not needed, so that the use process is more convenient and sanitary, and meanwhile, the waste caused by the skin care product remained on hands is reduced.

The thickener, the lubricant and the humectant are reasonably matched, so that the skin feel is guaranteed to be moist and smooth while a stick-shaped product is formed, and the skin care effect is achieved by adding the skin conditioner, so that the use effect of the stick-shaped skin care product is guaranteed.

Preferably, the melting process of the second synthetic wax is (43-46) — (63-66) °c, and the melting process of the third synthetic wax is (26-30) °c- (50-54) °c.

By adopting the technical scheme.

By adopting the technical scheme, the third synthetic wax is low-melting-point wide-melting-range synthetic wax, the second synthetic wax is medium-melting-point middle-short-melting-range synthetic wax, the first synthetic wax is high-melting-point short-melting-range synthetic wax, the third synthetic wax plays a role in smoothing skin feel, the second synthetic wax plays a role in locking oil and thickening, and the first synthetic wax plays a role in solidifying and guaranteeing high-temperature stability; the melting process of the second synthetic wax and the first synthetic wax has a crossing part, the third synthetic wax is melted first in the process of preparing the stick-shaped skin care product, and the second synthetic wax begins to melt in the process of melting the third synthetic wax, so that the melted products of the second synthetic wax and the first synthetic wax are mutually penetrated, the molding performance and the stability of the stick-shaped product are further improved, and the molding performance and the integral use performance of the stick-shaped skin care product are ensured by the cooperation of the third synthetic wax and the first synthetic wax.

Preferably, the weight ratio of the first synthetic wax, the second synthetic wax and the third synthetic wax in the thickener is 4: (2-3): 1.

by adopting the technical scheme, the proportion of the three synthetic waxes in the thickener is further optimized, and the formability and the overall usability of the stick-shaped cosmetic are further improved.

Preferably, the emollient comprises methyl trimethicone, and the emollient further comprises one or more of C9-12 alkane, hydrogenated polyisobutene, isononyl isononanoate.

In one embodiment, the emollient is methyl trimethicone, C9-12 alkane in a weight ratio of 1:1.

In one embodiment, the emollient is present in an amount of 2:2:1 methyl trimethicone, C9-12 alkane, hydrogenated polyisobutene.

In a specific embodiment, the emollient comprises methyl trimethicone, C9-12 alkane, hydrogenated polyisobutene, isononyl isononanoate in a weight ratio of 2:2:1:1.

By adopting the technical scheme, the methyl trimethyl silicone is compounded with other emollients, so that the skin moisturizing effect is improved; in addition, the methyl trimethyl silicone has high volatility, so that the skin care product can be used more dry and comfortable.

Preferably, the humectant comprises one or more of butylene glycol, glycerol, 1, 2-pentanediol, ethylhexyl glycerol.

In one embodiment the humectant is butylene glycol.

In one embodiment, the humectant comprises butylene glycol and glycerin in a weight ratio of 1:1.

In one embodiment, the humectant comprises butylene glycol, glycerin, 1, 2-pentanediol in a weight ratio of 1:1:1.

In a specific embodiment, the humectant comprises butylene glycol, glycerin, 1, 2-pentanediol, ethylhexyl glycerin in a weight ratio of 1:1:1:1.

Preferably, the skin conditioning agent is one or more of fucus extract and rose water.

In a specific embodiment, the skin conditioning agent is an fucus extract.

In a specific embodiment, the skin conditioning agent is rose water.

In one embodiment, the skin conditioning agent is a 1:1 ratio by weight of fucus extract to rose water.

By adopting the technical scheme, the fucus extract contains glutamic acid, so that the softness and smoothness of the skin are improved, the skin is effectively nourished, sebum films are provided for the skin, the skin is protected, and the metabolism of fat cells and the regeneration of connective tissues are facilitated; the rose water has the effects of scavenging free radicals, preventing aging, enhancing cell activity, and whitening skin.

In a second aspect, the application provides a preparation method of a bar-shaped skin care product for moisturizing, which adopts the following technical scheme: a preparation method of a bar-shaped skin care product for moisturizing, comprising the following steps:

s1, uniformly mixing a thickening agent, an emollient and an emulsifier, and heating to 80-90 ℃ to dissolve to obtain an oil phase;

s2, uniformly mixing a humectant, a skin conditioning agent, a preservative and water, and heating to 80-90 ℃ for dissolution to obtain a water phase;

s3, adding the water phase obtained in the step S2 into the oil phase obtained in the step S1, controlling the adding speed of the water phase to ensure that the water phase is added completely within 20-30min, emulsifying and homogenizing, wherein the homogenizing speed is 2500-3000rpm, and the homogenizing time is 10-15min, so as to obtain a uniform material body;

s4, filling the material body obtained in the step S3 into a mold, and solidifying and molding;

s5, demolding and packaging.

By adopting the technical scheme, the dissolution temperature of the oil phase and the water phase is controlled to be any temperature between 80 ℃ and 90 ℃, such as 80 ℃, 85 ℃, 90 ℃ and the like, so that the melting synthetic wax and the emulsifying temperature are ensured, the water evaporation speed at the temperature is ensured not to be too high, and a large amount of water evaporation is avoided; controlling the speed of adding the water phase into the oil phase, so that the oil phase just comprises the water phase, if the adding speed is too high, demulsification can be caused, and if the adding speed is too low, poor uniformity of the material body can be caused; the application has the advantages of high water content and less emulsifying agent, controls the homogenizing time and the homogenizing speed, and ensures the emulsifying and homogenizing effects.

Preferably, in the step S4, a reverse filling process is adopted, and the filling temperature is 84-86 ℃.

By adopting the technical scheme, the material body flows poorly, the moisture in the material body is easy to evaporate, and the filling is carried out at any temperature between 84 ℃ and 86 ℃ by adopting a back-flow process, such as 84 ℃, 85 ℃, 86 ℃ and the like, so that the smooth filling is ensured; if the filling temperature is too high, the water evaporation is fast, and if the temperature is too low, the filling is not formed.

In summary, the application has the following beneficial effects:

the application adopts three kinds of synthetic waxes with different melting ranges, and forms the stick-shaped cosmetic of the water-in-oil system under the conditions of high water content and low emulsifier content.

Detailed Description

The present application will be described in further detail with reference to examples.

Raw materials

The emulsifier is PEG-10 polydimethylsiloxane;

the preservative is phenoxyethanol;

the first synthetic wax pattern number precision melt M80, the second synthetic wax pattern number SW6471, and the third synthetic wax pattern number SW46 were purchased from shanghai Rong Zhi materials technologies limited.

Examples

Examples 1 to 5

A bar-shaped skin care product for moisturizing, which comprises the following preparation method:

s1, uniformly mixing a thickening agent, an emollient and an emulsifier according to the proportion in the table 1, and heating to 85 ℃ for dissolution to obtain an oil phase;

s2, uniformly mixing a humectant, a skin conditioning agent, a preservative and water according to the proportion in the table 1, and heating to 85 ℃ for dissolution to obtain a water phase;

s3, adding the water phase obtained in the step S2 into the oil phase obtained in the step S1, controlling the adding speed of the water phase to ensure that the water phase is added completely in 20min, emulsifying and homogenizing, wherein the homogenizing speed is 3000rpm, and the homogenizing time is 10min, so as to obtain a uniform material body;

s4, filling the material body obtained in the step S3 into a mold at the temperature of 85 ℃ by adopting a backward flow process, and solidifying and molding;

s5, demolding and packaging.

Table 1 examples 1-5 raw materials proportioning table (kg)

Wherein the thickener comprises the following components in percentage by weight: 3:1, a second synthetic wax, and a third synthetic wax; the melting process of the first synthetic wax is 68-87 ℃, the melting process of the second synthetic wax is 46-63 ℃, and the melting process of the third synthetic wax is 30-54 ℃.

Example 6

Unlike example 2, the thickener of example 6 comprises a weight ratio of 5:2:1, a second synthetic wax, and a third synthetic wax.

Example 7

Unlike example 2, the thickener of example 7 comprises a weight ratio of 4:2:1, a second synthetic wax, and a third synthetic wax.

Example 8

Unlike example 2, the thickener of example 8 comprises a weight ratio of 4:3:1, a second synthetic wax, and a third synthetic wax.

Example 9

Unlike example 7, the melting range of the first synthetic wax in example 9 is 70-85 ℃; in S3, the homogenization speed was 2800rpm, and the homogenization time was 12min.

Example 10

Unlike example 7, the melting range of the first synthetic wax in example 10 is 72 ℃ to 83 ℃; in S3, the homogenization speed was 2500rpm, and the homogenization time was 15min.

Example 11

Unlike example 9, the second synthetic wax of example 11 was melted at 45-65℃and the third synthetic wax was melted at 28-52 ℃.

Example 12

Unlike example 9, the second synthetic wax of example 12 was melted at 43-66℃and the third synthetic wax was melted at 26-50 ℃.

Example 13

Unlike example 9, the melting range of the second synthetic wax in example 13 is 50℃to 72 ℃.

Example 14

Unlike example 9, the melting range of the third synthetic wax in example 14 is 20℃to 35 ℃.

Example 15

Unlike example 14, the aqueous phase of S3 of example 15 was added at 30 min.

Example 16

Unlike example 14, the aqueous phase of S3 of example 16 was added at 10 min.

Example 17

Unlike example 14, the aqueous phase of S3 of example 17 was added at 40 min.

Example 18

Unlike example 15, the filling temperature in S4 in example 18 was 80 ℃.

Example 19

Unlike example 15, the filling temperature in S4 in example 19 was 95 ℃.

Comparative example

Comparative example 1

Unlike example 1, the thickener of comparative example 1 includes a weight ratio of (3-5): the first and second synthetic waxes of (2-3).

Comparative example 2

Unlike example 1, the thickener of comparative example 2 includes a weight ratio of (3-5): 1, a third synthetic wax.

Comparative example 3

Unlike example 1, the thickener of comparative example 3 includes a weight ratio of (2-3): 1, a second synthetic wax, a third synthetic wax.

Comparative example 4

Unlike example 1, the thickener in comparative example 4 was the first synthetic wax.

Comparative example 5

Unlike example 1, the thickener in comparative example 5 was a second synthetic wax.

Comparative example 6

Unlike example 1, the thickener in comparative example 6 was a third synthetic wax.

Comparative example 7

Unlike example 1, the melting range of the first synthetic wax in comparative example 7 was 80℃to 96 ℃.

Performance test

Detection method

1) Ability to cure into a rod

After the filling in examples 1 to 19 and comparative examples 1 to 7 was cooled to room temperature and left at room temperature for 3 hours, 30 professionals observed and scored, and then the average score was calculated, and the evaluation criteria are shown in table 2.

TABLE 2 evaluation criteria for curing ability

Status of	Score of
		Obvious separation of emulsion	0
Slightly shake with shaking	1
		Slightly swaying without swaying, slightly pressing is destroyed	2
Slight pressing does not destroy	3
		Pressing with little effort does not destroy	4

2) Product fluency the stick cosmetics of examples 1-19 and comparative examples 1-7 were tried by 30 professional evaluators, the sensory fluency at the time of use was scored, and then the average score was calculated, and the evaluation criteria are shown in table 3.

TABLE 3 product fluency evaluation criteria

Status of	Score of
		Is not fluent	0
Is less fluent	1
		Can not judge	2
Slightly feel fluent	3
		Feel fluent	4

3) Heat resistance

The product was left to stand at 48℃for 24 hours, then observed and recorded.

The results of the performance tests are shown in Table 4.

TABLE 4 Performance test results

In combination with examples 1-19 and comparative examples 1-7, and in combination with Table 4, it can be seen that the curability of the products in the comparative examples was reduced as compared with the examples, wherein the reduction in comparative example 1 was not significant with comparative example 7, and the other comparative examples were significantly reduced; the fluency in use of the products of examples 1-19 was better than that of comparative examples 1-8; this demonstrates that the stick cosmetic prepared by the present application is excellent in both moldability and feel in use.

As can be seen from the combination of examples 1 and comparative examples 1 to 6 and Table 4, the curing and molding abilities of the two kinds of synthetic waxes having different melting ranges are reduced as compared with those of example 1, wherein the curing ability of comparative example 1 is relatively superior and the curing ability of comparative example 2 is worst when the two kinds of synthetic waxes are used in combination, probably because the melting ranges of the synthetic waxes having the middle melting range are not connected due to the absence of the synthetic waxes having the middle melting range, the curing ability of the product is reduced, and the product is not well known as a rod-shaped product, which means that the rod-shaped product having good use feeling can be produced under the action of the three kinds of synthetic waxes of the application.

As can be seen from the combination of example 1 and comparative example 7 and the combination of table 4, in comparative example 7, although the curing ability was high, the smoothness of use was significantly reduced, probably because the melting point of the first synthetic wax was high, not only the first synthetic wax was melted during heating, but also the evaporation of water was accelerated, resulting in an excessively low water content in the system, and the smoothness of use was reduced.

In combination with examples 9 and 11-14, and with Table 4, it can be seen that the curing ability of the products of examples 13 and 14 was reduced, which suggests that the three synthetic waxes were more effective in the compounding ratio range of the present application.

In combination with examples 15-17 and with Table 4, it can be seen that the products of examples 16-17 have reduced curability and smoothness of use, probably because the rate of addition of the water phase to the oil phase in example 16 is too slow, resulting in poor homogeneity of the mass; the water phase of example 17 was added too rapidly to the oil phase, resulting in demulsification and thus affecting the performance of the product.

Performance test

The products of examples 7, 11 and 15 were subjected to hygienic index detection, and microbial indexes in the products were detected according to the method of cosmetic safety Specification (2015 edition) and the detection results are shown in Table 5.

TABLE 5 hygiene test results

As can be seen from Table 5, the products of the examples of the present application were inspected with a sampling test, and the sanitary index thereof reached the standard requirement.

The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims

1. The bar-shaped skin care product for moisturizing is characterized by comprising the following raw materials in percentage by weight: 14-40% of an emollient, 4-29% of a humectant, 2-20% of a skin conditioning agent, 1-10% of a thickening agent, 1-10% of an emulsifying agent, 0.5-1% of a preservative and 30-50% of water;

the thickener comprises the following components in percentage by weight: (2-3): 1, a second synthetic wax, and a third synthetic wax; wherein the melting process of the first synthetic wax is (68-72) DEG C- (83-87), the melting process of the second synthetic wax is (43-46) DEG C- (63-66), and the melting process of the third synthetic wax is (26-30) DEG C- (50-54);

the skin conditioner is one or more of Fucus vesiculosus extract and rose water.

2. A moisturizing stick skin care product according to claim 1, characterized in that: the emollient comprises methyl trimethicone, and the emollient further comprises one or more of C9-12 alkane, hydrogenated polyisobutene, isononyl isononanoate.

3. A moisturizing stick skin care product according to claim 1, characterized in that: the humectant comprises one or more of butanediol, glycerol, 1, 2-pentanediol and ethylhexyl glycerol.

4. A method for preparing the bar-shaped skin care product for moisturizing according to any one of claims 1 to 3, comprising the steps of:

s3, adding the water phase obtained in the S2 into the oil phase obtained in the S1, controlling the adding speed of the water phase to ensure that the water phase is added completely within 20-30min, emulsifying and homogenizing, wherein the homogenizing speed is 2500-3000rpm, and the homogenizing time is 10-15min, so as to obtain a uniform material body;

s5, demolding and packaging.

5. The method for preparing the bar-shaped skin care product for moisturizing as recited in claim 4, wherein the method comprises the following steps: in the step S4, a reverse filling process is adopted for filling, and the filling temperature is 84-86 ℃.