Amino acid system cleaning composition and facial cleanser

Abstract

The invention discloses an amino acid system cleaning composition, comprising an acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 1-3:6-10:30-46:4-6:2-4:4-6:0.05-0.2:1-4:1-4:20-25. The amino acid system cleaning composition can be stably placed at a high temperature of 60°C for 30 days; the facial cleanser prepared by using the amino acid system cleaning composition as the main facial cleansing component not only has the advantages of mildness and strong cleaning ability of the amino acid system facial cleanser, but also has excellent thermal stability.

Description

Technical Field

[0001] The present invention relates to the technical field of skin care products, and in particular to an amino acid system cleaning composition and a facial cleanser. Background Art

[0002] Skin is one of the important organs of the human body and a symbol of human health and beauty. The surface of human skin is covered with sebum secreted by sebaceous glands, forming a natural protective film that makes the skin surface soft and smooth. However, due to the daily pollution of sweat, dust and other dirt on the face of the human body, a variety of skin conditions are caused. For example, PM 2.5 enters the skin through the pores, causing enlarged pores, second-hand smoke adheres to the skin surface, causing dull skin, and long-term labor work causes imbalanced oil secretion in the skin, dryness and looseness, loss of luster, and pathological skin color. Various factors accelerate skin aging, so the use of cleansers and other skin care products to protect the skin cannot be ignored.

[0003] Facial cleansers are the most commonly used skin care products by consumers, with a penetration rate of up to 73%. The market size of the facial cleanser industry continues to grow. At present, the formula types of facial cleansers on the market are mainly soap-based and amino acid systems. The soap-based system has low cost and strong cleaning power. It is mainly composed of fatty acids and strong alkalis. After washing with a facial cleanser with a high soap content, the skin is prone to dryness and tightness. As consumers pay more and more attention to health and safety, they are more inclined to buy facial cleansers prepared using amino acid systems. The amino acid system is mild, but its stability is relatively poor, and it is easy to leak water or denature when the external temperature is high. At present, the national standard heat resistance temperature of facial cleansers is 40°C. However, the temperature inside the car in summer is often between 40 and 70°C, which also causes the facial cleanser to leak water, become thinner, change texture or phase separate due to excessively high ambient temperature during transportation, resulting in a decrease or even disappearance of the cleansing ability of the facial cleanser. Moreover, the global temperature is changing, and the room temperature in many places in summer is as high as 40°C or even higher than 40°C. Therefore, products that only meet the existing national standard heat resistance temperature requirements are obviously insufficient.

[0004] The prior art prepares an amino acid cleansing cream with a high creaming temperature, which is composed of disodium EDTA, glycerin, potassium cocoyl glycinate, methylparaben, sodium lauroamphoacetate, glyceryl stearate SE, disodium lauryl sulfosuccinate, acrylic acid (ester) copolymers, citric acid, phenoxyethanol, ethylhexylglycerin, various plant extracts and deionized water. The prepared solid cleansing cream can remain stable after being placed at 48°C for one month, but the technology still cannot meet the stability requirements at high temperatures of 50 to 70°C that often occur during transportation in summer.

[0005] Therefore, there is an urgent need for an amino acid system cleanser that will not release water, become thin, change texture or separate phases under high temperature conditions and can be stably stored in high temperature environments. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide an amino acid system cleaning composition and a facial cleanser.

[0007] The first object of the present invention is to provide an amino acid system cleaning composition.

[0008] The second object of the present invention is to provide the use of the amino acid system cleaning composition in the preparation of skin cleaning products.

[0009] The third object of the present invention is to provide an amino acid system facial cleanser.

[0010] In order to achieve the above object, the present invention is implemented by the following scheme:

[0011] An amino acid system cleaning composition comprises an acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 1-3:6-10:30-46:4-6:2-4:4-6:0.05-0.2:1-4:1-4:20-25.

[0012] Preferably, it comprises acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 2-3:8-10:45-46:5-6:3-4:5-6:0.1-0.2:3-4:3-4:23.63-25.

[0013] More preferably, it comprises acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 2:8:45:5:3:5:0.1:3:3:23.63.

[0014] Further preferably, the acrylate copolymer is Carbopol Aqua SF-1.

[0015] According to the research of the present invention, the above-mentioned amino acid system cleaning composition will not undergo significant changes after being placed at a high temperature of 70°C for 30 days. The amino acid system cleaning composition will not show obvious phase separation, soften, release water or become thinner, and there is no significant difference compared with the amino acid system cleaning composition stored at room temperature; this indicates that the above-mentioned amino acid system cleaning composition has excellent heat resistance and can be stably stored in a high temperature environment.

[0016] Therefore, the present invention also seeks to protect the use of any of the above-mentioned amino acid system cleaning compositions in the preparation of skin cleaning products.

[0017] Preferably, the skin cleaning product is an amino acid system cleanser.

[0018] An amino acid system facial cleanser uses any of the above-mentioned amino acid system cleaning compositions as a main facial cleansing ingredient.

[0019] Preferably, it also includes preservatives, moisturizers and fragrances; the main cleansing ingredients account for 96.7% to 98.15% of the total mass of the amino acid system cleansing milk.

[0020] More preferably, the preservatives are p-hydroxyacetophenone, 1,2-hexanediol and 1,3-propylene glycol; the moisturizers are PROSIX EPI and Linlan Runlu; and the fragrance is jasmine oil.

[0021] More preferably, in terms of mass ratio, the formula is as follows:

[0022] Phase I: 10-15% water, 1-3% acrylate copolymer, 6-10% glycerin, 30-46% disodium lauryl sulfosuccinate, 4-6% sodium methyl cocoyl taurate, 2-4% sodium lauroyl glutamate, 4-6% cocamidopropyl betaine, 0.05-0.2% disodium EDTA and 1-4% sodium cocoyl isethionate;

[0023] Phase II: 1-4% sodium chloride and 10-15% water;

[0024] Phase III: 0.5-1% p-hydroxyacetophenone, 0.5-1% 1,2-hexanediol and 0.8-1.2% 1,3-propylene glycol;

[0025] Phase IV: 0.01-0.02% PROSIX EPI, 0.01-0.02% Linlan Runlu and 0.03-0.06% jasmine oil.

[0026] Further preferably, in terms of mass ratio, the formula is as follows:

[0027] Phase I: 13.63% water, 2% acrylates copolymer, 8% glycerin, 45% disodium lauryl sulfosuccinate, 5% sodium methyl cocoyl taurate, 3% sodium lauroyl glutamate, 5% cocamidopropyl betaine, 0.1% disodium EDTA and 3% sodium cocoyl isethionate;

[0028] Phase II: 3% sodium chloride and 10% water;

[0029] Phase III: 0.6% p-hydroxyacetophenone, 0.6% 1,2-hexanediol and 1% 1,3-propylene glycol;

[0030] Phase IV: 0.01% PROSIX EPI, 0.01% Linlan Moisturizing Lotion and 0.05% Jasmine Oil.

[0031] Further preferably, the facial cleanser is prepared by a preparation method comprising the following steps:

[0032] S1. Mix the materials of phase I, heat to 80-88°C, and stir thoroughly to obtain a clear solution;

[0033] S2. After the phase II material is fully mixed, the clarified solution obtained in step S1 is added and cooled to 60 to 68 ° C, and the solution is stirred to obtain an amino acid cleaning composition solution;

[0034] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 68-70° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition solution of step S2 cooled to 40-45° C., stir well to obtain a facial cleanser.

[0035] More preferably, the facial cleanser is prepared by a preparation method comprising the following steps:

[0036] S1. Mix the materials of phase I, heat to 80°C, and stir thoroughly to obtain a clear solution;

[0037] S2. After the phase II material is fully mixed, the clarified solution obtained in step S1 is added and cooled to 60°C, and the solution is stirred thoroughly to obtain an amino acid cleaning composition solution;

[0038] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 68-70° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition solution of step S2 which has been cooled to 40° C. and stir well to obtain a facial cleanser.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The present invention provides an amino acid system cleaning composition, comprising an acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 1-3:6-10:30-46:4-6:2-4:4-6:0.05-0.2:1-4:1-4:20-25. The amino acid system cleaning composition can be stably placed at a high temperature of 70°C for 30 days; the facial cleanser prepared by using the amino acid system cleaning composition as the main facial cleansing ingredient not only has the advantages of mildness and strong cleaning ability of the amino acid system facial cleanser, but also has excellent thermal stability. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with specific examples, which are only used to explain the present invention and are not used to limit the scope of the present invention. The test methods used in the following examples are conventional methods unless otherwise specified; the materials, reagents, etc. used are reagents and materials that can be obtained from commercial channels unless otherwise specified.

[0042] Among them, Carbopol Aqua SF-1 and acrylic acid (ester) copolymer DM-SF-1 are both acrylic acid ester copolymers with the same ingredients. The corresponding CAS number of the ingredients is 25035-69-2. The production processes of acrylic acid ester copolymers produced by different manufacturers are not exactly the same; Carbopol Aqua SF-1 was purchased from Guangzhou Zhaoheng Trading Development Co., Ltd.; acrylic acid (ester) copolymer DM-SF-1 was purchased from Guangzhou Daoming Chemical Co., Ltd.

[0043] Example 1 An amino acid system cleaning composition

[0044] 1. Formulation

[0045] The formula of the amino acid system cleaning composition shown in Example 1 is shown in Table 1.

[0046] Table 1 Formula of amino acid system cleaning composition

[0047]

[0048] 2. Preparation method

[0049] S1. Weigh and mix the phase I materials according to the formula shown in Table 1, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0050] S2. The sodium chloride in phase II is fully dissolved in the purified water in phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 60° C., and the sodium chloride solution is added thereto. The mixture is fully mixed to obtain an amino acid cleaning composition.

[0051] Example 2 An amino acid system cleaning composition

[0052] The formula of the amino acid system cleaning composition shown in Example 2 is shown in Table 2.

[0053] Table 2 Formula of amino acid system cleaning composition

[0054]

[0055] 2. Preparation method

[0056] S1. Weigh and mix the phase I materials according to the formula shown in Table 1, heat to 88°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0057] S2. The sodium chloride in phase II is fully dissolved in the purified water in phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 68° C., and the sodium chloride solution is added thereto. The mixture is fully mixed to obtain an amino acid cleaning composition.

[0058] Example 3 An amino acid system cleaning composition

[0059] The formula of the amino acid system cleaning composition shown in Example 3 is shown in Table 3.

[0060] Table 3 Formula of amino acid system cleaning composition

[0061]

[0062]

[0063] 2. Preparation method

[0064] S1. Weigh and mix the phase I materials according to the formula shown in Table 1, heat to 85°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0065] S2. The sodium chloride in phase II is fully dissolved in the purified water in phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 65° C., and the sodium chloride solution is added thereto. The mixture is fully mixed to obtain an amino acid system cleaning composition.

[0066] Example 4 An amino acid system cleaning composition

[0067] 1. Formulation

[0068] The formula of the amino acid system cleaning composition shown in Example 1 is shown in Table 1.

[0069] Table 1 Formula of amino acid system cleaning composition

[0070]

[0071] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0072] Comparative Example 1: An amino acid system cleaning composition

[0073] The formula of the amino acid system cleaning composition shown in Comparative Example 1 is shown in Table 4.

[0074] Table 4: Formula of amino acid system cleaning composition

[0075]

[0076]

[0077] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0078] Comparative Example 2: An amino acid system cleaning composition

[0079] The formula of the amino acid system cleaning composition shown in Comparative Example 2 is shown in Table 5.

[0080] Table 5: Formula of amino acid system cleaning composition

[0081]

[0082] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0083] Comparative Example 3: An amino acid system cleaning composition

[0084] The formula of the amino acid system cleaning composition shown in Comparative Example 3 is shown in Table 6.

[0085] Table 6 Formula of amino acid system cleaning composition

[0086]

[0087] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0088] Comparative Example 4: An amino acid system cleaning composition

[0089] The formula of the amino acid system cleaning composition shown in Comparative Example 4 is shown in Table 7.

[0090] Table 7 Formula of amino acid system cleaning composition

[0091]

[0092] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0093] Comparative Example 5: An amino acid system cleaning composition

[0094] The formula of the amino acid system cleaning composition shown in Comparative Example 5 is shown in Table 8.

[0095] Table 8: Formula of amino acid system cleaning composition

[0096]

[0097] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of Example 1.

[0098] Comparative Example 6: An amino acid system cleaning composition

[0099] 1. Formulation

[0100] The formula of the amino acid system cleaning composition shown in Comparative Example 6 is shown in Table 9.

[0101] Table 9: Formula of amino acid system cleaning composition

[0102]

[0103] 2. Preparation method

[0104] S1. Weigh and mix the phase I materials according to the formula shown in Table 9, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0105] S2. Cool the clear solution obtained in step S1 to 60° C., add the phase II material and stir well, then add the phase III material and stir well to obtain the amino acid system cleaning composition.

[0106] Comparative Example 7: An amino acid system cleaning composition

[0107] The formula of the amino acid system cleaning composition shown in Comparative Example 7 is shown in Table 10.

[0108] Table 10: Formula of amino acid system cleaning composition

[0109]

[0110] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of comparative example 6.

[0111] Comparative Example 8: An amino acid system cleaning composition

[0112] The formula of the amino acid system cleaning composition shown in Comparative Example 8 is shown in Table 11.

[0113] Table 11: Formula of amino acid system cleaning composition

[0114]

[0115] An amino acid system cleaning composition was prepared according to the preparation method shown in step 2 of comparative example 6.

[0116] Comparative Example 9: An amino acid system cleaning composition

[0117] 1. Formulation

[0118] The formula of the amino acid system cleaning composition shown in Comparative Example 9 is shown in Table 12.

[0119] Table 12: Formula of amino acid system cleaning composition

[0120]

[0121] 2. Preparation method

[0122] S1. Weigh and mix the phase I materials according to the formula shown in Table 12, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0123] S2. Add phase II material to the clear solution obtained in step S1, and stir until the solution is clear and transparent to obtain a mixed solution;

[0124] S3. The mixed solution obtained in step S2 is cooled to 60° C., the phase III material is added and stirred evenly, and then the phase IV material is added and stirred evenly to obtain an amino acid system cleaning composition.

[0125] Test Example 1: Test of the physical and chemical properties of the amino acid system cleaning composition

[0126] 1. Appearance

[0127] The color and appearance of the amino acid system cleaning compositions prepared in Examples 1 to 4 and Comparative Examples 1 to 9 were observed with naked eyes.

[0128] 2. Viscosity test

[0129] The test was performed using a digital viscometer manufactured by Brookfield and model RVDVC.

[0130] 3. pH test

[0131] 5 g of the amino acid cleaning composition prepared in Examples 1 to 4 and Comparative Examples 1 to 9 were respectively placed in a beaker, deionized water was added to make up to 50 g, and after being fully stirred, the pH value was measured using a pH meter.

[0132] 4. Heat stability test

[0133] The temperature of the biochemical incubator was set at a gradient temperature of 40°C to 70°C with each gradient temperature being 5°C. The amino acid system cleaning compositions prepared in Examples 1 to 4 and Comparative Examples 1 to 9 were placed in biochemical incubators with various gradient temperatures. After being placed at a constant temperature for 30 days, the amino acid system cleaning compositions were taken out and the texture of the amino acid system cleaning compositions was observed to see whether there was a change or obvious difference in properties. When the temperature of the amino acid system cleaning compositions dropped to a temperature close to room temperature (rewarming), the amino acid system cleaning compositions were observed to see whether there were precipitated particles or obvious differences in properties.

[0134] 5. Experimental results

[0135] The appearance, viscosity and pH measurement results of the amino acid system cleaning composition are shown in Table 13.

[0136] Table 13 Appearance, viscosity and pH test results

[0137]

[0138] The stability test results of the amino acid system cleaning composition are shown in Table 14.

[0139] Table 14 Stability test results

[0140]

[0141] The results in Table 13 and Table 14 show that the pH and viscosity of the amino acid system cleaning compositions prepared in Examples 1 to 4 and Comparative Examples 1 to 9 meet the national standard requirements for facial cleansers.

[0142] In addition, the amino acid system cleaning compositions prepared in Examples 1 to 4 can be stably placed in an environment of 40 to 70°C and have excellent heat resistance stability; although the amino acid system cleaning compositions prepared in Examples 2 and 4 become slightly softer in an environment of 70°C, the properties of the compositions do not change, indicating that they can be stably stored at 70°C.

[0143] Most of the amino acid cleaning compositions prepared in Comparative Examples 1 to 9 will show obvious property changes in a 50°C environment, and some amino acid system cleaning compositions will also show property changes at 55°C and cannot be stably stored in a high temperature environment.

[0144] Example 5: An amino acid system cleanser

[0145] 1. Formulation

[0146] The formula of the amino acid system cleanser shown in Example 5 is shown in Table 15.

[0147] Table 15: Formula of amino acid system cleanser

[0148]

[0149] 2. Preparation method

[0150] S1. Weigh and mix the phase I materials according to the formula shown in Table 15, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0151] S2. The sodium chloride in phase II is fully dissolved in the purified water of phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 60 ° C, and the sodium chloride solution is added thereto, and the mixture is thoroughly mixed to obtain an amino acid system cleaning composition;

[0152] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0153] Comparative Example 10: An amino acid system cleanser

[0154] 1. Formulation

[0155] The formula of the amino acid system cleanser shown in Comparative Example 10 is shown in Table 15.

[0156] 2. Preparation method

[0157] S1. Weigh and mix the phase I materials according to the formula shown in Table 15, heat to 75°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0158] S2. The sodium chloride in phase II is fully dissolved in the purified water of phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 60 ° C, and the sodium chloride solution is added thereto, and the mixture is thoroughly mixed to obtain an amino acid system cleaning composition;

[0159] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0160] Comparative Example 11: An amino acid system cleanser

[0161] 1. Formulation

[0162] The formula of the amino acid system cleanser shown in Comparative Example 11 is shown in Table 15.

[0163] 2. Preparation method

[0164] S1. Weigh and mix the phase I materials according to the formula shown in Table 15, heat to 95°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0165] S2. The sodium chloride in phase II is fully dissolved in the purified water of phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 60 ° C, and the sodium chloride solution is added thereto, and the mixture is thoroughly mixed to obtain an amino acid system cleaning composition;

[0166] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0167] Comparative Example 12: An amino acid system cleanser

[0168] 1. Formulation

[0169] The formula of the amino acid system cleanser shown in Comparative Example 12 is shown in Table 15.

[0170] 2. Preparation method

[0171] S1. Weigh and mix the phase I materials according to the formula shown in Table 15, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0172] S2. The sodium chloride in phase II is fully dissolved in the purified water of phase II to obtain a sodium chloride solution. The clear solution obtained in step S1 is cooled to 70 ° C, and the sodium chloride solution is added thereto, and the mixture is thoroughly mixed to obtain an amino acid system cleaning composition;

[0173] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0174] Comparative Example 13: An amino acid system cleanser

[0175] 1. Formulation

[0176] The formula of the amino acid system cleanser shown in Comparative Example 13 is shown in Table 15.

[0177] 2. Preparation method

[0178] S1. Weigh and mix the phase I materials according to the formula shown in Table 15, heat to 80°C, and stir at a speed of 300 r / min until the solution becomes clear to obtain a clear solution;

[0179] S2. The sodium chloride in phase II is fully dissolved in the purified water of phase II to obtain a sodium chloride solution, the clarified solution obtained in step S1 is cooled to 55 ° C, and the sodium chloride solution is added thereto, and the mixture is thoroughly mixed to obtain an amino acid system cleaning composition;

[0180] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0181] Comparative Example 14: an amino acid system cleanser

[0182] 1. Formulation

[0183] The formula of the amino acid system cleanser shown in Comparative Example 14 is shown in Table 15.

[0184] 2. Preparation method

[0185] S1. The sodium chloride in phase II of the formula shown in Table 15 is dissolved in the purified water of phase II to obtain a sodium chloride solution;

[0186] S2. According to the formula shown in Table 15, the phase I materials were weighed and mixed, heated to 80 ° C, stirred at a speed of 300 r / min until the solution was clear to obtain a clear solution, the clear solution was cooled to 60 ° C, the sodium chloride solution obtained in step S1 was added, and the mixture was thoroughly mixed to obtain an amino acid system cleaning composition;

[0187] S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 69° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition in step S2 which has been cooled to 40° C. and stir well to obtain an amino acid system cleanser.

[0188] Comparative Example 15: a facial cleanser

[0189] 1. Formulation

[0190] The formula of the facial cleanser shown in Comparative Example 15 is shown in Table 16.

[0191] Table 16 Formula of cleansing milk

[0192] Raw material name Mass Purified water 15.00 Acrylic copolymer 6.00 glycerin 12.00 Disodium Lauryl Sulfosuccinate 5.00 Sodium Methyl Cocoyl Taurate 22.00 Cocamidopropyl Betaine (CAB-35) 10.00 Disodium EDTA 0.10 Sodium Cocoyl Isethionate 12.00 Sodium chloride 2.00 Methylchloroisothiazolinone 0.20 Magnesium chloride 0.10 Propylene glycol 0.40 essence 0.10 Magnesium Nitrate 0.10 Laureth Sulfate Amine 5.00 Hydantoin 0.20 Propolis Extract 0.40

[0193] 2. Preparation method

[0194] S1. Take the formula shown in Table 16, sodium methyl cocoyl taurate, sodium cocoyl isethionate, disodium lauryl sulfosuccinate, cocamidopropyl betaine, ammonium laureth sulfate, disodium EDTA, propylene glycol, glycerin and water, mix, heat to 80 ° C, stir until the solution is uniform, and obtain a mixture 1;

[0195] S2. Add the formulated amount of acrylic copolymer and sodium chloride to the mixture obtained in step S1 1, and stir well to obtain a mixture 2;

[0196] S3. Defoam the mixture 2 obtained in step S2, cool it to 40° C., add the remaining substances of the formula shown in Table 16, stir and mix thoroughly to obtain a facial cleanser.

[0197] Comparative Example 16: a facial cleanser

[0198] 1. Formulation

[0199] The formula of the facial cleanser shown in Comparative Example 16 is shown in Table 17.

[0200] Table 17 Formula of cleansing milk

[0201]

[0202] 2. Preparation method

[0203] S1. Add purified water, disodium EDTA, glycerin, and methylparaben to an emulsifier, stir well at 30 rpm, then add potassium cocoyl glycinate, sodium lauroylamphoacetate, glyceryl stearate SE, and disodium lauryl sulfosuccinate, stir well, heat the emulsifier to 85-90°C, keep stirring for 2 minutes, and evacuate to defoam;

[0204] S2. Dissolve citric acid with 5g purified water. After all the materials in the emulsifier are completely dissolved and transparent, adjust the stirring speed to 20rpm, keep the temperature unchanged, add the dissolved citric acid under stirring, and stir evenly;

[0205] S3. Use 5g purified water to disperse the acrylic acid (ester) copolymer evenly. After the material in the emulsifier is transparent and uniform, adjust the speed to 15rpm, continue to add the dispersed acrylic acid (ester) copolymer under stirring, keep stirring for 5min and then evacuate and cool;

[0206] S4. When the temperature drops to 65°C, add phenoxyethanol and ethylhexylglycerin and stir evenly;

[0207] S5. When the temperature drops to 45°C, add the plant extract and continue stirring for 10 to 15 minutes. Stir evenly to obtain the cleansing milk.

[0208] Test Example 2 Heat Stability Test of Facial Cleanser

[0209] 1. Experimental methods

[0210] The amino acid system cleansing milk prepared in Example 5, the amino acid system cleansing milk prepared in Comparative Examples 10 to 14, and the cleansing milk prepared in Comparative Examples 15 and 16 were used as test samples, and the heat stability test was performed according to the method shown in Step 4 of Test Example 1.

[0211] 2. Experimental results

[0212] The heat stability test results of each amino acid system cleanser and cleansing milk are shown in Table 18.

[0213] Table 18 Heat stability test results

[0214]

[0215] The results show that the amino acid system cleanser prepared in Example 5 can be stably placed in an environment of 40 to 70° C. and has excellent heat resistance stability.

[0216] Test Example 3: Cleansing Ability Test of Amino Acid Cleansing Milk

[0217] 1. Experimental methods

[0218] The amino acid system cleanser prepared in Example 5 was used as a test sample to conduct the following tests:

[0219] Five volunteers were selected, and a 2 cm straight line was drawn on the back of the hands of the five volunteers with equal force using a blue ballpoint pen. Then, 2 mL of the amino acid system cleanser prepared in Example 5 was used to clean the straight line. After rubbing for 20 seconds, the color residue on the line was observed.

[0220] 2. Experimental results

[0221] The results showed that after the five volunteers used the amino acid system cleanser prepared in Example 5 for cleansing, the blue ballpoint pen marks at the crossed lines were completely removed, indicating that the amino acid cleanser has a strong cleaning ability.

[0222] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. For ordinary technicians in this field, other different forms of changes or modifications can be made based on the above descriptions and ideas. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An amino acid system cleaning composition, characterized in that: It is composed of acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 2-3:8-10:45-46:5-6:3-4:5-6:0.1-0.2:3-4:3-4:23.63-25.

2. The amino acid system cleaning composition according to claim 1, characterized in that It is composed of acrylate copolymer, glycerin, disodium lauryl sulfosuccinate, sodium methyl cocoyl taurate, sodium lauroyl glutamate, cocamidopropyl betaine, disodium EDTA, sodium cocoyl isethionate, sodium chloride and water in a mass ratio of 2:8:45:5:3:5:0.1:3:3:23.

63.

3. The amino acid system cleaning composition according to claim 2, characterized in that: The acrylate copolymer is Carbopol Aqua SF-1.

4. Use of the amino acid system cleaning composition according to any one of claims 1 to 3 in the preparation of skin cleaning products.

5. The use according to claim 4, characterized in that: The skin cleaning product is an amino acid system cleanser.

6. An amino acid system facial cleanser, characterized in that: In terms of mass ratio, the formula is as follows: Phase I: 10-15% water, 1-3% acrylate copolymer, 6-10% glycerin, 30-46% disodium lauryl sulfosuccinate, 4-6% sodium methyl cocoyl taurate, 2-4% sodium lauroyl glutamate, 4-6% cocamidopropyl betaine, 0.05-0.2% disodium EDTA and 1-4% sodium cocoyl isethionate; Phase II: 1-4% sodium chloride and 10-15% water; Phase III: 0.5-1% p-hydroxyacetophenone, 0.5-1% 1,2-hexanediol and 0.8-1.2% 1,3-propylene glycol; Phase IV: 0.01-0.02% PROSIX EPI, 0.01-0.02% Linlan Runlu and 0.03-0.06% jasmine oil.

7. The amino acid system facial cleanser according to claim 6, characterized in that: The amino acid system cleanser is prepared by a preparation method comprising the following steps: S1. Mix the materials of phase I, heat to 80-88°C, and stir thoroughly to obtain a clear solution; S2. After the phase II material is fully mixed, the clarified solution obtained in step S1 is added and cooled to 60 to 68 ° C, and the solution is stirred to obtain an amino acid cleaning composition solution; S3. After heating 1,2-hexanediol and 1,3-propylene glycol to 68-70° C., add them to p-hydroxyacetophenone and stir well to obtain a preservative solution. Add the preservative solution and the IV phase substance to the amino acid system cleaning composition solution of step S2 cooled to 40-45° C., stir well to obtain a facial cleanser.

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