A composition for surfactant systems and its preparation method and application

Abstract

The application discloses a composition for a surfactant system and a preparation method and application thereof, and relates to the technical field of skin cleaning products, and discloses a composition for a surfactant system, which comprises the following components: an aqueous base, oat beta-glucan and sodium polyaspartate; the mass ratio of the oat beta-glucan and the sodium polyaspartate is 1: (1-30). The composition has good compatibility with various types of surfactants, can be widely applied to skin cleaning products containing anionic, nonionic, amphoteric or compound systems, and can effectively play the dual effects of relieving dry and tight feeling of skin and improving foam stability in various formula systems.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to a composition for a surfactant system, its preparation method, and its application. Background Technology

[0002] Surfactants are essential components of cleansing products such as facial mousses, cleansers, shampoos, and shower gels, achieving their cleansing function by emulsifying and dispersing oil and dirt. However, surfactants can irritate the skin, and some types have strong degreasing power, which can lead to faster moisture evaporation, reduced elasticity, and increased elastic modulus after washing, resulting in a tight feeling. Furthermore, during the cleansing process, water-soluble natural moisturizing factors (NMF) from the stratum corneum dissolve with the cleansing solution, further exacerbating dryness.

[0003] The foaming performance of cleaning products directly impacts the user experience and cleaning efficiency. Dense, stable foam effectively encapsulates dirt, grease, and surfactant-dirt complexes shed during cleaning, preventing their redeposition on the skin or hair surface and thus enhancing cleaning effectiveness. However, cleaning products containing surfactants do not necessarily have good foaming properties. Many mild surfactant systems (such as amino acid-based and non-ionic surfactants), while less irritating, suffer from insufficient foaming ability and poor foam stability, leading consumers to perceive the product as "not clean enough," thus negatively affecting the user experience.

[0004] On the other hand, existing solutions for mitigating surfactant irritation (such as adding specific polymers or compounding different surfactants) often suffer from poor adaptability to surfactant systems. Some compositions are only suitable for anionic surfactant systems, and their effectiveness or compatibility stability issues in zwitterionic or nonionic systems limit their application in a wider range of formulations.

[0005] Therefore, developing a composition that can alleviate the dry and tight feeling of skin caused by surfactants, improve the foam density and stability of cleaning products, and has good versatility of surfactant systems (applicable to anionic, nonionic, amphoteric, etc.) has important industrial value and significance. Summary of the Invention

[0006] This invention provides a composition for surfactant systems, a method for preparing the composition, and its applications. The composition exhibits good compatibility with various types of surfactants and is widely applicable to skin cleansing products containing anionic, nonionic, amphoteric, or compound surfactants. It effectively alleviates dryness and tightness of the skin and enhances foam stability in various formulation systems.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a composition for a surfactant system, characterized in that the composition comprises the following components: an aqueous matrix, oat β-glucan and sodium polyaspartate; the mass ratio of oat β-glucan to sodium polyaspartate is 1:(1~30).

[0008] The composition described above for use in a surfactant system is characterized in that the mass ratio of oat β-glucan to sodium polyaspartate is 1:(1~15).

[0009] Furthermore, the present invention provides a method for preparing the above composition, characterized by comprising the following steps:

[0010] Step 1: Preparation of oat β-glucan solution: Under room temperature conditions, oat β-glucan is added to an aqueous matrix, heated to 75℃~85℃ and continuously stirred until the oat β-glucan is completely dissolved to obtain an oat β-glucan solution;

[0011] Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate is dissolved in an aqueous matrix at room temperature to obtain sodium polyaspartate solution.

[0012] Step 3: Cool the oat β-glucan solution from Step 1 to 60℃~80℃, and heat the sodium polyaspartate solution from Step 2 to 60℃~80℃; add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution while stirring until the mixture is homogeneous, thus obtaining the composition.

[0013] The method described above is characterized in that the mass concentration of the oat β-glucan solution in step one is 1wt%~35wt%; and the mass concentration of the sodium polyaspartate solution in step two is 15wt%~50wt%.

[0014] The above method is characterized in that the dripping rate in step three is 30 drops / min to 60 drops / min, and the stirring rate is 300 rpm to 800 rpm.

[0015] The method described above is characterized in that the pH of the mixed solution is controlled to be 4-6 during the dropwise addition process in step three.

[0016] The method described above is characterized in that the aqueous matrix is ​​one or more of deionized water, purified water, plant extract, and fermentation product filtrate.

[0017] Furthermore, the plant extracts or fermentation product filtrates include, but are not limited to, Bifida ferment filtrate, rice ferment filtrate, Lactobacillus / soybean milk ferment filtrate, Aloe barbadensis leaf water, Salix alba bark water, Hamamelis virginiana water, Hamamelis virginiana flower water, Hamamelis virginiana leaf water, Cucumber custardivus fruit water, or Birch sap.

[0018] Furthermore, the present invention provides an application of the above-described composition in the preparation of skin cleansing products.

[0019] The above-described application is characterized in that the skin cleansing products include facial skin cleansing products, body skin cleansing products, and / or scalp cleansing products.

[0020] Furthermore, the present invention provides a skin cleansing product, characterized in that the skin cleansing product comprises the composition of claim 1, and the amount of the composition added to the skin cleansing product is 0.1wt% to 5wt%.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The composition provided by this invention comprises oat β-glucan and sodium polyaspartate, and the combination of the two can effectively relieve the dry and tight feeling of the skin caused by the use of skin cleansing products. Experimental results show that adding the composition of this invention to skin cleansing products containing surfactants does not significantly increase transepidermal water loss (TEWL), but enhances skin comfort. In addition, this composition can significantly improve the foaming performance of skin cleansing products. Tests have shown that the foam height of skin cleansing products with this composition increased by approximately 19% to 38%, and the foam half-life (T) was also improved. 50 The foaming time was extended by approximately 59% to 100%, demonstrating excellent foam stabilizing properties. Further research showed that the composition has good compatibility with various types of surfactants and can be widely used in skin cleansing products containing anionic, nonionic, amphoteric, or compound systems. It can effectively relieve dry and tight skin and improve foam stability in various formulation systems.

[0023] The technical solution of the present invention will be further described in detail below with reference to the embodiments. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention are described in detail below with reference to examples. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified. The following description, with reference to examples, specifically illustrates the content of the present invention, and is not intended to limit the present invention.

[0025] In this protocol, the drop rate is controlled at 30-60 drops / minute (each drop is approximately 0.05 mL using a standard dropper).

[0026] It should be noted that the total solids concentration in the compositions prepared in each embodiment varies due to differences in raw material ratios and aqueous matrix. When added in application examples, it is calculated as a percentage of the total mass of the finished composition to the total mass of the cleaning product.

[0027] Example 1

[0028] The composition of this embodiment includes the following components: deionized water, oat β-glucan, and sodium polyaspartate; the mass ratio of oat β-glucan to sodium polyaspartate is 1:15.

[0029] The preparation method of the composition in this embodiment includes the following steps:

[0030] Step 1: Preparation of oat β-glucan solution: Under normal temperature conditions, oat β-glucan is added to deionized water, heated to 80°C and continuously stirred until the oat β-glucan is completely dissolved, to obtain an oat β-glucan solution with a mass concentration of 15wt%.

[0031] Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate is dissolved in deionized water at room temperature to obtain a sodium polyaspartate solution with a mass concentration of 20 wt%.

[0032] Step 3: Cool the oat β-glucan solution from Step 1 to 70°C, and heat the sodium polyaspartate solution from Step 2 to 70°C; add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution at a dropping rate of 40 drops / min, stirring continuously while adding. During the addition process, control the pH of the mixed solution to 5, until the mixture is homogeneous and the composition is obtained; the stirring speed is 500 rpm.

[0033] Example 2

[0034] The composition of this embodiment includes the following components: purified water, Bifida ferment filtrate, oat β-glucan, and sodium polyaspartate; the mass ratio of oat β-glucan to sodium polyaspartate is 1:30.

[0035] The preparation method of the composition in this embodiment includes the following steps:

[0036] Step 1: Preparation of oat β-glucan solution: Under normal temperature conditions, oat β-glucan is added to the filtrate of Bifida ferment lysate, heated to 75°C and continuously stirred until the oat β-glucan is completely dissolved, to obtain an oat β-glucan solution with a mass concentration of 1 wt%.

[0037] Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate is dissolved in purified water at room temperature to obtain a sodium polyaspartate solution with a mass concentration of 15 wt%.

[0038] Step 3: Cool the oat β-glucan solution from Step 1 to 60°C, and heat the sodium polyaspartate solution from Step 2 to 62°C. Add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution at a dropping rate of 60 drops / min while stirring. During the addition process, control the pH of the mixed solution to 4 until it is evenly mixed to obtain the composition. The stirring speed is 300 rpm.

[0039] Example 3

[0040] The composition of this embodiment includes the following components: aloe vera leaf water, witch hazel water, oat β-glucan and sodium polyaspartate; the mass ratio of oat β-glucan and sodium polyaspartate is 1:1.

[0041] The preparation method of the composition in this embodiment includes the following steps:

[0042] Step 1: Preparation of oat β-glucan solution: Under normal temperature conditions, oat β-glucan is added to aloe vera leaf water, heated to 85°C and continuously stirred until the oat β-glucan is completely dissolved, to obtain an oat β-glucan solution with a mass concentration of 35wt%.

[0043] Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate was dissolved in witch hazel water at room temperature to obtain a sodium polyaspartate solution with a mass concentration of 50 wt%.

[0044] Step 3: Cool the oat β-glucan solution from Step 1 to 80°C, and heat the sodium polyaspartate solution from Step 2 to 79°C; add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution at a dropping rate of 30 drops / min, stirring continuously while adding. During the addition process, control the pH of the mixed solution to 6 until the mixture is homogeneous and the composition is obtained; the stirring speed is 800 rpm.

[0045] Example 4

[0046] The composition of this embodiment includes the following components: purified water, oat β-glucan, and sodium polyaspartate; the mass ratio of oat β-glucan to sodium polyaspartate is 1:10.

[0047] The preparation method of the composition in this embodiment includes the following steps:

[0048] Step 1: Preparation of oat β-glucan solution: Under normal temperature conditions, oat β-glucan is added to purified water, heated to 80℃ and continuously stirred until the oat β-glucan is completely dissolved, to obtain an oat β-glucan solution with a mass concentration of 20wt%.

[0049] Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate was dissolved in purified water at room temperature to obtain a sodium polyaspartate solution with a mass concentration of 40 wt%.

[0050] Step 3: Cool the oat β-glucan solution from Step 1 to 70°C, and heat the sodium polyaspartate solution from Step 2 to 70°C; add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution at a dropping rate of 50 drops / min while stirring, and control the pH of the mixed solution to 4 during the dropping process until the mixture is homogeneous to obtain the composition; the stirring speed is 400 rpm.

[0051] Comparative Example 1

[0052] The composition of this comparative example was prepared according to the method of Example 1, except that the mass ratio of oat β-glucan to sodium polyaspartate was 1:60.

[0053] Comparative Example 2

[0054] The composition of this comparative example was prepared according to the method of Example 1, except that the mass ratio of oat β-glucan to sodium polyaspartate was 3:2.

[0055] Comparative Example 3

[0056] The composition of this comparative example was prepared according to the method of Example 1, except that yeast-derived β-glucan was used instead of oat β-glucan.

[0057] Comparative Example 4

[0058] The composition of this comparative example was prepared according to the method of Example 1, except that the composition contained only oat β-glucan.

[0059] Comparative Example 5

[0060] The composition of this comparative example was prepared according to the method of Example 1, except that the composition contained only sodium polyaspartate.

[0061] Comparative Example 6

[0062] The composition of this comparative example was prepared according to the method of Example 2, except that: the oat β-glucan solution was cooled to 30°C during mixing in step three, and the sodium polyaspartate solution in step two was heated to 30°C.

[0063] Comparative Example 7

[0064] The composition of this comparative example was prepared according to the method of Example 2, except that: the oat β-glucan solution was heated to 90°C during mixing in step three, and the sodium polyaspartate solution in step two was heated to 90°C.

[0065] Comparative Example 8

[0066] The composition of this comparative example was prepared according to the method of Example 3, except that the pH of the mixed solution was controlled to be 8 during the dropwise addition in step three.

[0067] Application Example 1

[0068] The composition prepared in Example 1 was added to an aqueous cleaning product, wherein the composition was 1 wt% in the aqueous cleaning product.

[0069] The specific composition and component distribution of water-based cleaning products are shown in the table below:

[0070] Table 1 Application Example 1 Cleaning Product Formulation

[0071] Serial Number Raw material name Percentage by weight (wt%) 1 water Up to 100 2 Disodium EDTA 0.1 3 Sodium lauryl ether sulfate 10 4 Phenoxyethanol 0.45 5 Ethylhexylglycerin 0.05 6 The composition prepared in Example 1 1

[0072] Application Example 2

[0073] The composition prepared in Example 1 was added to an emulsion cleaning product, wherein the composition constituted 5 wt% of the emulsion cleaning product.

[0074] The specific composition and component distribution of emulsion cleaning products are shown in the table below:

[0075] Table 2 Application Example 2 Cleaning Product Formulation

[0076] Serial Number Raw material name Percentage by weight (wt%) 1 water Up to 100 2 Disodium EDTA 0.1 3 Sodium lauroyl glutamate 10 4 glycerin 10 5 Acrylic (ester) copolymers 2 6 PEG-100 stearate 0.45 7 Glyceryl stearate 0.55 8 Phenoxyethanol 0.45 9 Ethylhexylglycerin 0.05 10 The composition prepared in Example 1 5

[0077] Application Example 3

[0078] The composition prepared in Example 1 was added to an aqueous cleaning product, wherein the composition was 0.1 wt% in the aqueous cleaning product.

[0079] The specific composition and component distribution of water-based cleaning products are shown in the table below:

[0080] Table 3 Application Example 3 Cleaning Product Formulation

[0081] Serial Number Raw material name Percentage by weight (wt%) 1 water Up to 100 2 Disodium EDTA 0.1 3 Disodium cocoamphodiacetate 10 4 Phenoxyethanol 0.45 5 Ethylhexylglycerin 0.05 6 The composition prepared in Example 1 0.1

[0082] Application Example 4

[0083] The composition prepared in Example 1 was added to an aqueous cleaning product, wherein the composition constituted 3 wt% of the aqueous cleaning product.

[0084] The specific composition and component distribution of water-based cleaning products are shown in the table below:

[0085] Table 4 Application Example 4 Cleaning Product Formulation

[0086] Serial Number Raw material name Percentage by weight (wt%) 1 water Up to 100 2 Disodium EDTA 0.1 3 Decyl glucoside 10 4 Phenoxyethanol 0.45 5 Ethylhexylglycerin 0.05 6 The composition prepared in Example 1 3

[0087] Application Examples 5-8 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Example 2.

[0088] Application Examples 9-12 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Example 3.

[0089] Application Examples 13-16 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 1.

[0090] Application Examples 17-20 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 2.

[0091] Application Examples 21-24 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 3.

[0092] Application Examples 25-28 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 4.

[0093] Application Examples 29-32 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 5.

[0094] Application Examples 33-36 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 6.

[0095] Application Examples 37-40 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 7.

[0096] Application Examples 41-44 correspond to Application Examples 1-4, respectively, except that the added composition is the composition prepared in Comparative Example 8.

[0097] Experimental Example

[0098] 1. Subjective rating of dryness and tightness of skin after cleansing.

[0099] The subjective scoring method for dry and tight skin was based on the skin sensory evaluation criteria described in "Dry Skin and Moisturizers: Chemistry and Function" (edited by Lodén M, Maibach HI, and Boca Raton), which is a standard method in the field.

[0100] Evaluation Method: Take 1g of each application example cleansing product and massage it onto damp facial skin using a standardized technique (circular motions with fingertips) for 30 seconds. Rinse thoroughly with running water at 35±2℃, with a total rinsing time of 30 seconds. Gently pat dry any remaining moisture with a standardized, lint-free, soft tissue, avoiding rubbing. After 3 minutes of cleansing, subjectively assess the tightness feeling using a 4-point scale and record the score. The evaluation criteria are as follows:

[0101] 0 points. No dryness or tightness felt; skin felt comfortable and soft.

[0102] 1 point indicates mild dryness and tightness; you can feel the dryness and tightness, but it does not affect normal facial expressions.

[0103] 2 points indicates moderate dryness and tightness, with a noticeable feeling of dryness and tightness, and a pulling sensation when making facial expressions, causing discomfort.

[0104] 3 points indicates severe dryness and tightness, with a strong feeling of dryness and tightness, and the skin feeling dry, itchy, and stinging.

[0105] 2. Irritation test of cleaning products

[0106] The irritant properties of the product were evaluated using the Zein test (zeatin assay). The strength of the irritant was characterized by the Zein value (in g / L).

[0107] Table 5. Statistical analysis of subjective skin dryness and tightness evaluation and Zein test results in anionic surfactant systems.

[0108] Application examples Subjective dryness and tightness rating Zein value Application Example 1 0 2.7134 Application Example 5 0 2.5581 Application Example 9 0 2.3011 Application Example 13 3 4.7657 Application Example 17 3 4.8253 Application Example 21 3 4.6802 Application Example 25 2 4.7505 Application Example 29 3 4.8527 Application Example 33 3 4.7174 Application Example 37 3 4.8920 Application Example 41 3 4.7033

[0109] Table 6. Statistical analysis of subjective dryness and tightness sensation of skin and Zein test results in amino acid surfactant systems.

[0110] Application examples Subjective dryness and tightness rating Zein value Application Example 2 0 0.5095 Application Example 6 0 0.5587 Application Example 10 0 0.6092 Application Example 14 3 2.9834 Application Example 18 3 2.8956 Application Example 22 3 2.9235 Application Example 26 2 3.0987 Application Example 30 3 3.1492 Application Example 34 3 3.0483 Application Example 38 3 3.1806 Application Example 42 3 2.9022

[0111] Table 7. Statistical analysis of subjective skin dryness and tightness evaluation and Zein test results in amphoteric surfactant systems.

[0112] Application examples Subjective dryness and tightness rating Zein value Application Example 3 0 0.4189 Application Example 7 0 0.4067 Application Example 11 0 0.4120 Application Example 15 3 2.5612 Application Example 19 3 2.6734 Application Example 23 3 2.4179 Application Example 27 2 2.6303 Application Example 31 3 2.6786 Application Example 35 3 2.5262 Application Example 39 3 2.7511 Application Example 43 3 2.4670

[0113] Table 8. Statistical analysis of subjective dryness and tightness sensation of skin and Zein test results in nonionic surfactant systems.

[0114] Application examples Subjective dryness and tightness rating Zein value Application Example 4 0 0.8795 Application Example 8 0 0.8657 Application Example 12 0 0.8704 Application Example 16 3 3.0259 Application Example 20 3 3.1640 Application Example 24 3 3.1124 Application Example 28 2 3.3048 Application Example 32 3 3.3821 Application Example 36 2 3.2459 Application Example 40 3 3.4329 Application Example 44 3 3.1602

[0115] Based on the user subjective evaluation results in Tables 5-8, it can be seen that after adding the compositions of the present invention (Application Examples 1-12) to cleaning products with different surfactant systems, users did not experience discomfort such as dry or tight skin after washing. Regarding objective data, the Zein values ​​of Application Examples 1-12 were all lower than those of the comparative group, indicating that the compositions of the examples can effectively reduce the irritation of cleaning products in various surfactant systems.

[0116] The Zein values ​​of Application Examples 13-44 were all higher than those of Application Examples 1-12 to varying degrees, and users also reported a corresponding degree of dryness and tightness. Specifically, the Zein values ​​of Application Examples 13-16 (too low oat β-glucan ratio), Application Examples 17-20 (too high oat β-glucan ratio), Application Examples 21-24 (yeast-derived β-glucan replacing oat β-glucan), Application Examples 33-40 (mixing temperature deviation), and Application Examples 41-44 (mixing system pH deviation) were all significantly higher than those of the Example Group. These results indicate that factors such as the mass ratio of the two components in the composition, the source of raw materials, the mixing temperature, and the pH of the mixing system all affect the composition's effectiveness in reducing surfactant irritation.

[0117] The single-component validation results (Application Examples 25-32) show that in each surfactant system, the compositions containing only oat β-glucan or only sodium polyaspartate had significantly higher Zein values ​​than the example groups (Application Examples 1-12). Specifically, the Zein values ​​were 2.6303-4.7505 for oat β-glucan alone, 2.6786-4.8527 for sodium polyaspartate alone, and decreased to 0.4067-2.7134 when combined with oat β-glucan alone. These data indicate that each component has limited effect on improving surfactant irritation when used alone, but combining them in a specific ratio produces a superior effect compared to using either component alone, demonstrating a synergistic effect in reducing surfactant irritation.

[0118] 3. Transepidermal water loss (TEWL) test after washing with cleansing products

[0119] Instrument: Tewameter™ Hex transdermal moisture loss test probe

[0120] Test Method: After volunteers cleansed their faces for 10 minutes using either the control or experimental groups, a facial TEWL test was performed. TEWL data were collected and analyzed using software. The statistical significance level was set at P < 0.05. In the control group, cleansing was performed using water, and the TEWL value was recorded as the initial value T0. In the experimental group, 1g of each application sample was used for cleansing, and the TEWL value was recorded as T1. The unit is g / m². 2 / h. The rate of change of TEWL before and after cleaning is expressed by the following formula:

[0121]

[0122] Table 9. Changes in skin TEWL in Examples and Comparative Examples using anionic surfactant systems

[0123] Application examples <![CDATA[T0(g / m 2 / h)]]> <![CDATA[T1(g / m 2 / h)]]> TEWL change rate (%) Application Example 1 18.37 18.14 -1.25 Application Example 5 18.16 17.95 -1.14 Application Example 9 19.55 19.33 -1.13 Application Example 13 18.24 25.92 42.11 Application Example 17 18.75 26.65 42.13 Application Example 21 19.23 26.98 40.30 Application Example 25 18.49 26.83 45.11 Application Example 29 18.63 27.19 45.95 Application Example 33 18.77 26.84 42.97 Application Example 37 19.09 27.75 45.36 Application Example 41 18.89 26.98 42.83

[0124] Table 10 Changes in skin TEWL in Examples and Comparative Examples when applied to amino acid surfactant systems

[0125] Application examples <![CDATA[T0(g / m 2 / h)]]> <![CDATA[T1(g / m 2 / h)]]> TEWL change rate (%) Application Example 2 19.03 17.89 -5.99 Application Example 6 19.29 18.26 -5.34 Application Example 10 19.21 18.21 -5.21 Application Example 14 18.73 25.92 38.39 Application Example 18 18.62 25.65 37.75 Application Example 22 19.28 25.98 34.75 Application Example 26 19.00 26.30 38.42 Application Example 30 18.97 26.29 38.59 Application Example 34 18.57 25.38 36.68 Application Example 38 19.20 26.93 40.26 Application Example 42 18.87 25.15 33.30

[0126] Table 11 Changes in skin TEWL in the Examples and Comparative Examples using amphoteric surfactant systems

[0127] Application examples <![CDATA[T0(g / m 2 / h)]]> <![CDATA[T1(g / m 2 / h)]]> TEWL change rate (%) Application Example 3 18.65 18.04 -3.27 Application Example 7 19.46 18.85 -3.13 Application Example 11 19.00 18.43 -3.00 Application Example 15 18.89 25.10 32.87 Application Example 19 18.78 24.98 33.01 Application Example 23 19.12 25.08 31.17 Application Example 27 18.83 25.14 33.51 Application Example 31 18.81 25.21 34.02 Application Example 35 18.75 24.49 30.63 Application Example 39 19.34 26.18 35.37 Application Example 43 18.97 25.02 31.89

[0128] Table 12 Changes in skin TEWL in Examples and Comparative Examples using nonionic surfactant systems

[0129] Application examples <![CDATA[T0(g / m 2 / h)]]> <![CDATA[T1(g / m 2 / h)]]> TEWL change rate (%) Application Example 4 17.82 17.18 -3.59 Application Example 8 17.63 17.05 -3.29 Application Example 12 17.89 17.32 -3.19 Application Example 16 18.44 25.55 38.56 Application Example 20 18.58 25.61 37.84 Application Example 24 19.39 25.78 32.96 Application Example 28 17.83 25.14 41.00 Application Example 32 17.82 25.12 40.97 Application Example 36 18.97 26.06 37.36 Application Example 40 18.48 25.94 40.36 Application Example 44 18.72 24.90 33.01

[0130] Transepidermal water loss (TEWL) is a core indicator for evaluating skin barrier function. Generally, a significantly elevated TEWL value indicates impaired skin barrier function, while a decreased TEWL value indicates repair. Based on the TEWL data in Tables 9 to 12: In Application Examples 1-12, the TEWL value of the stratum corneum did not increase significantly after product use, indicating that these products did not cause detectable damage to the skin barrier and may even alleviate the decline in skin barrier function that might be induced by the use of cleansing products to some extent. In Application Examples 13-44, the TEWL value showed a significant upward trend after use. Combined with subjective ratings from human trials and product irritation test results, this suggests that using the products in Application Examples 13-44 may have certain negative effects or risks of irritation and damage to the skin barrier.

[0131] 4. Methods for testing and evaluating the effect of the composition on foam height and foam half-life of cleaning products.

[0132] Referring to the literature BkJha, A. Patist, DOShah. Effect of Antifoaming Agents on the Micellar Stability and Foamability of Sodium Dodecyl Sulfate Solutions[J]. Journal of Langmuir, 1999, 15, 9, 3042-3044. DOI:10.1021 / la981523b, the foam height was tested using the oscillation method. The initial foam height was denoted by H, in mm. Five parallel samples were measured for each sample, and the average value was taken.

[0133] Referring to the references Zhu Zhiling, Ren Xiaolei, Xiao Mengxi, et al. Performance evaluation method of topical foaming agents [J]. Progress in Pharmaceutical Sciences, 2019, 43(12): 935-941 and Fuchao Zhan, Jiangnan Hu, Chen He, et al. Complexation between sodium caseinate and gallic acid: Effects on foam properties and interfacial properties of foam [J]. Journal of Food Hydrocolloids, 2020, 105365. DOI: 10.1016 / foodhyd.2019.105365, the foam stability of the product was tested by high-speed stirring, and the time required for the foam volume to decay to half was recorded. The T0 value was used to determine the foam stability. 50 This indicates that the unit is min, and each sample is measured in 3 parallel samples, with the average value taken.

[0134] Table 13 Foam height and foam half-life in anionic surfactant systems

[0135] Application examples H / mm <![CDATA[T 50 / min]]> Application Example 1 90 10 Application Example 5 88 9 Application Example 9 89 9 Application Example 13 75 5 Application Example 17 76 5 Application Example 21 74 5 Application Example 25 78 5 Application Example 29 72 4 Application Example 33 77 5 Application Example 37 71 4 Application Example 41 76 5

[0136] Table 14. Foam height and foam half-life in amino acid surfactant systems

[0137] Application examples H / mm <![CDATA[T 50 / min]]> Application Example 2 92 12 Application Example 6 91 11 Application Example 10 90 10 Application Example 14 68 6 Application Example 18 69 6 Application Example 22 69 6 Application Example 26 68 5 Application Example 30 66 5 Application Example 34 70 6 Application Example 38 70 4 Application Example 42 68 6

[0138] Table 15 Foam height and foam half-life in amphoteric surfactant systems

[0139] Application examples H / mm <![CDATA[T 50 / min]]> Application Example 3 80 9 Application Example 7 78 8 Application Example 11 78 8 Application Example 15 63 6 Application Example 19 64 6 Application Example 23 64 5 Application Example 27 66 5 Application Example 31 62 5 Application Example 35 65 5 Application Example 39 60 4 Application Example 43 66 6

[0140] Table 16 Foam height and foam half-life in nonionic surfactant systems

[0141] Application examples H / mm <![CDATA[T 50 / min]]> Application Example 4 85 14 Application Example 8 83 13 Application Example 12 84 13 Application Example 16 62 7 Application Example 20 62 7 Application Example 24 61 7 Application Example 28 60 6 Application Example 32 61 8 Application Example 36 62 8 Application Example 40 59 6 Application Example 44 60 7

[0142] Tables 13-16 show that, compared to the application examples that added the comparative composition (Application Examples 13-44), the application examples that added the group of embodiments of the present invention (Application Examples 1-12) exhibit superior foaming performance and foam stability in various surfactant systems. Specifically, in anionic surfactant systems, the foam height is increased by approximately 19% compared to the application examples using the comparative composition, and the foam half-life (Tm) is... 50 The foam length increased by approximately 96%; in the amino acid surfactant system, the foam height increased by approximately 33%, and T... 50 Extended by approximately 100%; in amphoteric surfactant systems, foam height increased by approximately 23%, T 50 The foam length increased by approximately 59%; in nonionic surfactant systems, the foam height increased by approximately 38%, and T... 50 The foaming time is extended by approximately 90%. These results demonstrate that the composition prepared according to the present invention can significantly enhance the foaming properties of cleaning products, effectively delay foam breakage, prolong the foam half-life, and improve foam stability.

[0143] Its mechanism of action may be as follows: oat β-glucan in the composition and sodium polyaspartate form aggregates with a certain network structure through intermolecular interactions (such as hydrogen bonding or electrostatic attraction). These aggregates may further adsorb onto the gas-liquid interface film, which on the one hand helps to reduce interfacial tension to promote foam formation, and on the other hand delays foam rupture and prolongs foam half-life by inhibiting liquid film drainage and gas diffusion.

[0144] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the invention shall still fall within the protection scope of the present invention.

Claims

1. A composition for use in a surfactant system, characterized in that, The composition comprises the following components: an aqueous matrix, oat β-glucan, and sodium polyaspartate; wherein the mass ratio of oat β-glucan to sodium polyaspartate is 1:(1~30).

2. The composition for a surfactant system according to claim 1, characterized in that, The mass ratio of oat β-glucan to sodium polyaspartate is 1:(1~15).

3. A method for preparing the composition according to claim 1, characterized in that, Includes the following steps: Step 1: Preparation of oat β-glucan solution: Under room temperature conditions, oat β-glucan is added to an aqueous matrix, heated to 75℃~85℃ and continuously stirred until the oat β-glucan is completely dissolved to obtain an oat β-glucan solution; Step 2: Preparation of sodium polyaspartate solution: Sodium polyaspartate is dissolved in an aqueous matrix at room temperature to obtain sodium polyaspartate solution. Step 3: Cool the oat β-glucan solution from Step 1 to 60℃~80℃, and heat the sodium polyaspartate solution from Step 2 to 60℃~80℃; add the heated sodium polyaspartate solution dropwise to the cooled oat β-glucan solution while stirring until the mixture is homogeneous, thus obtaining the composition.

4. The method according to claim 3, characterized in that, The mass concentration of the oat β-glucan solution in step one is 1wt%~35wt%; the mass concentration of the sodium polyaspartate solution in step two is 15wt%~50wt%.

5. The method according to claim 3, characterized in that, The dripping rate in step three is 30 drops / min to 60 drops / min, and the stirring rate is 300 rpm to 800 rpm.

6. The method according to claim 3, characterized in that, In step three, the pH of the mixed solution should be controlled at 4-6 during the dropwise addition process.

7. The method according to claim 3, characterized in that, The aqueous matrix is ​​one or more of deionized water, purified water, plant extract, and fermentation product filtrate.

8. The use of the composition as described in claim 1 in the preparation of a skin cleansing product.

9. The application according to claim 8, characterized in that, The skin cleansing products include facial skin cleansing products, body skin cleansing products, and / or scalp cleansing products.

10. A skin cleansing product, characterized in that, The skin cleansing product comprises the composition of claim 1, and the amount of the composition added to the skin cleansing product is 0.1wt% to 5wt%.