Soap-based facial cleanser and preparation method thereof

Abstract

The invention relates to a soap-based facial cleanser and a preparation method thereof. The soap-based facial cleanser comprises the following components: fatty acid potassium salt, an ampholytic surfactant, an amino acid surfactant, a polymer and water, the polymer comprises corn starch, an acrylic acid (ester) copolymer and polyquaternium-6. According to the soap-based facial cleanser disclosed by the invention, the fatty acid potassium salt, the ampholytic surfactant and the amino acid surfactant are matched for use, so that a system is stable and is not easy to change color and smell, the facial cleanser has the advantages of a soap-based system, is rich in foam and good in cleaning power, does not cause excessive cleaning, and the used components are mild and non-irritant, so that the soap-based facial cleanser is convenient to use. The skin of a consumer is more moist after use, and the comfort is better.

Description

Technical Field

[0001] The invention belongs to the technical field of daily cosmetics, and particularly relates to a soap-based facial cleanser and a preparation method thereof. Background Art

[0002] With the development of economy and the improvement of living standards, people are using skin care products more and more widely, and their requirements for facial cleansing are getting higher and higher. Whether it can clean gently, efficiently and comfortably has become the basic standard for measuring the cleaning effect. Among the popular cleansing products on the market, soap-based cleansing products are the most. Soap-based cleansing products have good texture, rich, smooth and dense foam, and strong cleaning power. Therefore, they are also loved by more and more consumers.

[0003] CN111840099A discloses a soap-based cleansing milk with amino acid surfactants, which includes, by mass percentage: phase A: lauric acid: 1-5%; myristic acid: 4-15%; stearic acid: 3-16%; amino acid surfactant: 3%-25%; polyol moisturizer: 15-20%; emulsifier: 1-2%; neutralizer: added to 80-85%; phase B: thickener: 4-7%; phase C: nonionic surfactant: 0.3-0.6%; auxiliary components: 0.01-0.1%; deionized water: balance. The cleansing milk of the invention is made of soap-based components and amino acid surfactants, which can achieve rich foam, gently clean skin dirt, and has the advantages of comfortable and non-tight skin after washing, moisturizing and conditioning the skin, not causing the skin stratum corneum to fall off due to dryness and lack of water, no redness and swelling, no allergies, and smooth skin.

[0004] CN103356400A discloses a soap-based cleansing cream and a preparation method thereof. The soap-based cleansing cream is mainly made of fatty acid, polyol, potassium hydroxide, emulsifier, polyquaternium-7, guar hydroxypropyltrimethylammonium chloride, ion chelating agent, essence and deionized water, wherein the following components are expressed as follows: fatty acid 30-35wt.%, polyol 15-20wt.%, potassium hydroxide 5.5-6.5wt.%, emulsifier 2-4wt.%, polyquaternium-7 3-5wt.%, guar hydroxypropyltrimethylammonium chloride 0.1-0.5wt.%, ion chelating agent 0.05-0.1wt.%, essence 0.2-0.3wt.%. The soap-based cleansing cream has rich, dense and stable foam and can protect the skin.

[0005] However, although the above-mentioned facial cleansing products containing amino acid surfactants are relatively mild, they are relatively lacking in cleaning power, rich foam and comfortable effect; and soap-based facial cleansing creams are prone to hardening, water separation, discoloration, stinging and other problems. Therefore, it is very necessary to provide a new type of composite facial cleanser that has rich foam, strong cleaning power, mildness, moisturizing, and makes the skin comfortable and not tight after washing, and does not cause skin problems such as allergies. There is a huge market demand and it will bring considerable economic benefits. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a soap-based cleanser and a preparation method thereof, wherein the cleanser has rich foam, good cleaning power and is mild and non-irritating.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a soap-based facial cleanser, the components of which include a fatty acid potassium salt, an amphoteric surfactant, an amino acid surfactant, a polymer and water;

[0009] The polymers include corn starch, acrylic acid (ester) copolymers and polyquaternium-6.

[0010] Preferably, the components of the soap-based facial cleanser include, by weight, 5-30 parts of fatty acid potassium salt, 1-10 parts of amphoteric surfactant, 0.1-5 parts of amino acid surfactant, 1-10 parts of polymer and 50-95 parts of water.

[0011] The amount of the fatty acid potassium salt added to the soap-based cleanser of the present invention can be 6 parts, 8 parts, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, 20 parts, 22 parts, 24 parts, 26 parts or 28 parts, etc.;

[0012] The amount of the amphoteric surfactant added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0013] The amount of the amino acid surfactant added can be 0.5 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts or 4.5 parts, etc.;

[0014] The amount of the polymer added can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.;

[0015] The amount of water added can be 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts, 90 parts or 95 parts, etc.

[0016] Preferably, the components of the soap-based facial cleanser include, by weight, 5-25 parts of fatty acid potassium salt, 2-10 parts of amphoteric surfactant, 0.1-4 parts of amino acid surfactant, 1-9 parts of polymer and 50-95 parts of water.

[0017] Preferably, the components of the soap-based facial cleanser include, by weight, 10-25 parts of fatty acid potassium salt, 2-8 parts of amphoteric surfactant, 0.2-4 parts of amino acid surfactant, 2-9 parts of polymer and 50-95 parts of water.

[0018] Preferably, the mass ratio of the corn starch, acrylic acid (ester) copolymer and polyquaternium salt-6 is (1-4):(1-4):(0.01-0.5).

[0019] The first "1-4" can be 1.1, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, 2.7, 3, 3.1, 3.3, 3.5, 3.7 or 3.9, etc.;

[0020] The second "1-4" can be 1.1, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, 2.7, 3, 3.1, 3.3, 3.5, 3.7 or 3.9, etc.;

[0021] “0.01-0.5” can mean 0.02, 0.05, 0.08, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 or 0.45, etc.

[0022] Preferably, the fatty acid potassium salt includes any one of potassium laurate, potassium cocoate, potassium myristic acid, potassium palmitate, potassium palm kernel oleate or potassium stearate, or a combination of at least two thereof.

[0023] Preferably, the fatty acid potassium salt is a combination of potassium palm kernel oleate and potassium coconut oleate.

[0024] Preferably, the mass ratio of the potassium palm kernel oleate to the potassium cocoate is 1:(1-20), for example, it can be 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18 or 1:19, etc.

[0025] Preferably, the amphoteric surfactant includes any one of cocamidopropyl betaine, sodium lauroamphoacetate, disodium cocamidoamphodiacetate, cocamidopropyl hydroxysulfonate or lauryl hydroxysulfonate, or a combination of at least two thereof.

[0026] Preferably, the amphoteric surfactant is lauryl hydroxysulfonate.

[0027] Preferably, the amino acid surfactant includes any one or a combination of at least two of potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, sodium lauroyl glutamate, sodium cocoyl glutamate, potassium cocoyl glycinate, sodium lauroyl oat amino acids, sodium cocoyl aminopropionate, sodium cocoyl methyl taurate or sodium methyl cocoyl taurate.

[0028] Preferably, the amino acid surfactant comprises a combination of potassium cocoyl hydrolyzed oat protein and sodium cocoyl glycinate.

[0029] Preferably, the mass ratio of the potassium cocoyl hydrolyzed oat protein to sodium cocoyl glycinate is (0.1-1):(0.1-3).

[0030] Wherein “0.1-1” can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.;

[0031] “0.1-3” can mean 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6 or 2.8, etc.

[0032] Preferably, the soap-based facial cleanser further comprises polyols and / or skin conditioners.

[0033] Preferably, the soap-based facial cleanser further comprises, by weight, 1-10 parts of polyol (for example, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts, etc.) and 0.1-5 parts of skin conditioner (for example, 0.5 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts or 4.5 parts, etc.).

[0034] Preferably, the polyol includes any one of glycerol, butylene glycol, dipropylene glycol or 1,3-propylene glycol, or a combination of at least two thereof.

[0035] Preferably, the skin conditioning agent comprises any one of panthenol, allantoin, soapberry fruit extract or ethylene glycol stearate, or a combination of at least two thereof.

[0036] Preferably, the skin conditioning agent is a combination of soapberry fruit extract, panthenol, allantoin and glycol stearate.

[0037] Preferably, the mass ratio of the soapberry fruit extract, panthenol, allantoin and ethylene glycol stearate is (0.01-0.5):(0.1-1):(0.01-0.5):(0.5-3).

[0038] The first "0.01-0.5" can be 0.02, 0.05, 0.08, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 or 0.45, etc.;

[0039] “0.1-1” can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.;

[0040] The second "0.01-0.5" can be 0.02, 0.05, 0.08, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 or 0.45, etc.;

[0041] “0.5-3” can mean 0.6, 0.8, 1, 1.2, 1.5, 1.8, 2, 2.2, 2.5 or 2.8, etc.

[0042] Preferably, the soap-based facial cleanser further comprises a preservative and / or a fragrance.

[0043] Preferably, the preservative includes any one of p-hydroxyacetophenone, 1,2-hexanediol, ethylhexylglycerin, and 1,2-pentanediol, or a combination of at least two thereof.

[0044] Preferably, the fragrance is essence or essential oil.

[0045] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0046] In a second aspect, the present invention provides a method for preparing the soap-based facial cleanser as described in the first aspect, the preparation method comprising mixing and dispersing a fatty acid potassium salt, an amphoteric surfactant, an amino acid surfactant, a polymer and water to obtain the soap-based facial cleanser.

[0047] Preferably, the preparation method comprises:

[0048] (1) mixing and dispersing corn starch and polyol to obtain a mixture A;

[0049] Mix water, potassium cocoate, potassium palm kernel oleate, lauryl hydroxysulfobetaine, potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, soapberry fruit extract, allantoin, and ethylene glycol stearate to obtain a mixture B.

[0050] (2) heating the mixture A and the mixture B and mixing them;

[0051] (3) after cooling, add acrylic acid (ester) copolymer and continue mixing and stirring;

[0052] (4) Continue to cool the mixture and then add polyquaternium-6 and panthenol to mix and homogenize to obtain the soap-based cleanser.

[0053] Preferably, the temperature in step (2) is raised to 80-90°C, for example, 81°C, 83°C, 85°C, 87°C or 89°C.

[0054] Preferably, the temperature in step (3) is lowered to 60-65°C, for example, 60°C, 61°C, 62°C, 63°C, 64°C or 65°C.

[0055] Preferably, the temperature in step (4) is lowered to 20-45°C, for example, 26°C, 28°C, 30°C, 32°C, 35°C, 37°C, 40°C, 42°C or 44°C.

[0056] Preferably, step (4) further includes adding preservatives and / or fragrances during the mixing and homogenization.

[0057] Other specific point values ​​within the above numerical ranges can be selected and will not be described in detail here.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] (1) The soap-based cleansing milk of the present invention uses a combination of fatty acid potassium salt, amphoteric surfactant, and amino acid surfactant to make the system stable and not prone to discoloration or taste change. The cleansing milk has the advantages of a soap-based system, with rich foam and good cleaning power without excessive cleaning. In addition, the ingredients used are mild and non-irritating. After use, consumers' skin is more moisturized and more comfortable.

[0060] (2) The polymers in the soap-based cleanser provided by the present invention are corn starch, acrylic acid (ester) copolymers and polyquaternium-6, which can form a multi-dimensional network system, which can not only improve the foam, making the foam more dense, delicate and rich, but also reduce the irritation of the system, making the product mild. In addition, the presence of corn (ZEAMAYS) starch and polyquaternium polymers makes this product have a buffering and protective effect on the skin when used, reducing irritation in this dimension.

[0061] (3) The skin conditioning agent of the present invention is a combination of soapberry fruit extract, panthenol, allantoin and ethylene glycol stearate. The combination of the four has a synergistic effect, which can reduce oil secretion, avoid oil accumulation, and further improve the cleaning effect of the cleanser. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 This is a foam marking diagram of Example 1 of the present invention;

[0063] Figure 2 This is a diagram of the foam particle size distribution of Example 1 of the present invention. DETAILED DESCRIPTION

[0064] In order to further explain the technical means and effects adopted by the present invention, the technical solution of the present invention is further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0065] The following materials and comparative examples are as follows:

[0066] Raw material name source Potassium Cocoate Shanghai Hongdu Fine Chemical Co., Ltd. Potassium Palm Kernel Oleate Shanghai Hongdu Fine Chemical Co., Ltd. Lauryl Hydroxysulfobetaine Shanghai Hongdu Fine Chemical Co., Ltd. Potassium Cocoyl Hydrolyzed Oat Protein Shanghai Hongdu Fine Chemical Co., Ltd. Sodium Cocoyl Glycinate Shanghai Hongdu Fine Chemical Co., Ltd. Acrylic acid (ester) copolymer Lubrizol Advanced Materials Soapberry Fruit Extract Guangdong Jingcui Biotechnology Co., Ltd. Ethylene glycol stearate Croda Chemicals (Shanghai) Co., Ltd.

[0067] The rest of the raw materials can be used as long as they are purchased from regular dealers.

[0068] Examples 1-3

[0069] This embodiment provides three soap-based facial cleansers. The components of the soap-based facial cleansers are shown in the following table. The amount of each component in the table is in parts:

[0070]

[0071]

[0072] The preparation method of the dual-continuous phase cleansing oil is:

[0073] (1) mixing and dispersing corn starch and polyol uniformly to obtain a mixture A;

[0074] (2) mixing water, potassium cocoate, potassium palm kernel oleate, lauryl hydroxysulfobetaine, potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, soapberry fruit extract, allantoin, and ethylene glycol stearate to obtain a mixture B, and then heating the mixture A and the mixture B to 80° C. and stirring to dissolve evenly;

[0075] (3) cooling to 63° C., adding acrylic acid (ester) copolymer and stirring to dissolve evenly;

[0076] (4) Continue to cool to 30° C., add polyquaternium-6, preservative, panthenol, and fragrance, and stir to dissolve to obtain the soap-based cleanser.

[0077] Example 4

[0078] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that the fatty acid potassium salt is only potassium cocoate, and the amount of the fatty acid potassium salt remains unchanged, and the other components and amounts are consistent with those of Example 1. The preparation method refers to Example 1.

[0079] Example 5

[0080] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that the fatty acid potassium salt is only potassium palm kernel oleate, and the amount of fatty acid potassium salt remains unchanged, and the other components and amounts are consistent with those of Example 1. The preparation method refers to Example 1.

[0081] Example 6

[0082] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that the amino acid surfactant is only potassium cocoyl hydrolyzed oat protein, and the amount of the amino acid surfactant is kept unchanged, and the other components and amounts are consistent with those of Example 1. The preparation method refers to Example 1.

[0083] Example 7

[0084] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that the amino acid surfactant is sodium cocoyl glycinate, and the amount of the amino acid surfactant is kept unchanged, and the other components and amounts are consistent with those of Example 1. The preparation method refers to Example 1.

[0085] Example 8

[0086] This embodiment provides a soap-based facial cleanser, which differs from Embodiment 1 only in that it does not include a skin conditioner, and the reduced amount is supplemented by water. The remaining components and amounts are consistent with those of Embodiment 1, and the preparation method refers to that of Embodiment 1.

[0087] Example 9

[0088] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that the skin conditioner does not include soapberry fruit extract, and the reduced amount thereof is distributed to panthenol, allantoin and ethylene glycol stearate in proportion to the number of parts. The remaining components and amounts are consistent with those of Example 1, and the preparation method refers to Example 1.

[0089] Example 10

[0090] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that panthenol is not included in the skin conditioner, and its reduced amount is distributed to the soapberry fruit extract, allantoin and ethylene glycol stearate in proportion to the number of parts. The remaining components and amounts are consistent with those of Example 1, and the preparation method refers to Example 1.

[0091] Embodiment 11

[0092] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that allantoin is not included in the skin conditioner, and its reduced amount is distributed to the soapberry fruit extract, panthenol and ethylene glycol stearate in proportion to the number of parts. The remaining components and amounts are consistent with those of Example 1, and the preparation method refers to Example 1.

[0093] Example 12

[0094] This embodiment provides a soap-based facial cleanser, which is different from that of Example 1 only in that ethylene glycol stearate is not included in the skin conditioner, and its reduced amount is distributed to the soapberry fruit extract, panthenol and allantoin in proportion to the number of parts. The remaining components and amounts are consistent with those of Example 1, and the preparation method refers to Example 1.

[0095] Comparative Example 1

[0096] This comparative example provides a soap-based facial cleanser, which differs from Example 1 only in that it does not include an amphoteric surfactant, and the reduced amount thereof is distributed to each amino acid surfactant component according to the proportion of parts. The remaining components and amounts are consistent with those in Example 1, and the preparation method refers to Example 1.

[0097] Comparative Example 2

[0098] This comparative example provides a soap-based facial cleanser, which differs from Example 1 only in that it does not include an amino acid surfactant, and the reduced amount is supplemented by an amphoteric surfactant. The remaining components and amounts are consistent with those of Example 1, and the preparation method refers to Example 1.

[0099] Comparative Example 3

[0100] This comparative example provides a soap-based facial cleanser, which differs from Example 1 only in that corn starch is not included in the polymer, and the reduced amount is supplemented by acrylic acid (ester) copolymer and polyquaternium-6 in proportion. The remaining components and amounts are consistent with those in Example 1, and the preparation method refers to Example 1.

[0101] Comparative Example 4

[0102] This comparative example provides a soap-based facial cleanser, which differs from Example 1 only in that the polymer does not include an acrylic acid (ester) copolymer, and the reduced amount is supplemented by corn starch and polyquaternium-6 in proportion to the number of parts. The remaining components and amounts are consistent with those in Example 1, and the preparation method refers to Example 1.

[0103] Comparative Example 5

[0104] This comparative example provides a soap-based facial cleanser, which differs from Example 1 only in that the polymer does not include polyquaternium-6, and the reduced amount is supplemented by corn starch and acrylic acid (ester) copolymer in proportion to the number of parts. The remaining components and amounts are consistent with those in Example 1, and the preparation method refers to Example 1.

[0105] Test Example 1 Consumer Sensory Effect Evaluation

[0106] 170 female volunteers aged between 30 and 35 were selected as test subjects and randomly divided into 17 groups, with 10 people in each group. Test method: The test subjects used the products of Examples 1-12 and Comparative Examples 1-5, once every night, for 15 consecutive days. After use, the test subjects scored the use effect using a 5-point system: 4.5 points or more means very good, very satisfied; 3.5-4.5 points means good; 2.5-3.5 points means medium and acceptable; and 2.5 points or less means bad, unacceptable. The score of each group is the average of 10 people, and the results are shown in Table 1.

[0107] Table 1

[0108]

[0109]

[0110] It can be seen from Table 1 that the soap-based facial cleanser provided by the present invention is comfortable to use and is mild and non-irritating, and is rich in foam and easy to rinse.

[0111] As can be seen from Examples 4-5, if the fatty acid potassium salt lacks either potassium cocoate or potassium palm kernel oleate, the foaming property and rinsing ease of the facial cleanser will be seriously insufficient.

[0112] It can be seen from Examples 6-7 that the selection of the amino acid surfactant has an impact on the mildness, moisturizing, density and easy rinsing of the product of the present invention;

[0113] It can be seen from Comparative Examples 1-2 that the combination of amino acid surfactants and amphoteric surfactants can improve the mildness, foaming properties and comfort of the facial cleanser of the present invention;

[0114] It can be seen from Comparative Examples 3-4 that corn starch in the polymer has a greater impact on the various dimensions of the present invention, and acrylic acid (ester) copolymers also have a certain impact, but the impact on sensory evaluation is relatively lower than the former; and polyquaternary ammonium salts have a significant impact on the mildness, moisturizing and non-tightness of the present invention.

[0115] Test Example 2

[0116] Stability evaluation:

[0117] The stability test includes high temperature, low temperature and hot and cold cycle tests. The samples provided by Examples 1-12 and Comparative Examples 1-5 were placed at -16°C, 25°C, 45°C and 5°C for 3 months, and the appearance of the products was regularly observed for abnormal phenomena such as turbidity and stratification. After 3 hot and cold cycle tests at a temperature of -16°C-25°C-45°C, the products were observed for abnormal phenomena such as turbidity and stratification. The test results are shown in Table 2.

[0118] Table 2

[0119] sample -16℃ 5℃ 25℃ 45℃ Cycle Test Example 1 No abnormality No abnormality No abnormality No abnormality No abnormality Example 2 No abnormality No abnormality No abnormality No abnormality No abnormality Example 3 No abnormality No abnormality No abnormality No abnormality No abnormality Example 4 Slight delamination No abnormality No abnormality Slight delamination Slight delamination Example 5 Slight delamination No abnormality Low viscosity Slight delamination Slight delamination Example 6 No abnormality No abnormality No abnormality No abnormality No abnormality Example 7 No abnormality No abnormality No abnormality No abnormality No abnormality Example 8 No abnormality No abnormality No abnormality No abnormality No abnormality Example 9 No abnormality No abnormality No abnormality No abnormality No abnormality Example 10 No abnormality No abnormality No abnormality No abnormality No abnormality Embodiment 11 No abnormality No abnormality No abnormality No abnormality No abnormality Example 12 No abnormality No abnormality No abnormality No abnormality No abnormality Comparative Example 1 No abnormality No abnormality No abnormality Slight delamination No abnormality Comparative Example 2 No abnormality No abnormality No abnormality No abnormality No abnormality Comparative Example 3 Layering Layering No abnormality Layering Layering Comparative Example 4 Layering No abnormality No abnormality Layering Layering Comparative Example 5 No abnormality No abnormality No abnormality No abnormality No abnormality

[0120] It can be seen from the data in Table 2 that the facial cleanser provided by the present invention has excellent high and low temperature stability; and the composition of the fatty acid potassium salt, the addition of amphoteric surfactants and the type of polymer selected have a great influence on the stability.

[0121] Test Example 3 Safety Evaluation:

[0122] The specific method is as follows: 40 females aged 18-35 years old with no history of allergies are selected, and each subject is tested with the samples prepared in Examples 1-12. After cleaning the back of the subject, the spot tester with the sample is applied to the selected position on the back with a non-irritating tape, and after pasting, it is lightly pressed with fingers to make it evenly attached to the skin for 48 hours. The subject keeps the patch site dry within 48 hours, avoids intense exercise, scratching the patch site, and long-term sunlight exposure. After 48 hours, the tester is removed and marked, and after 30 minutes, the indentation disappears and the judgment is made under sufficient light.

[0123] The grading standards for adverse skin reactions are shown in Table 3:

[0124] Table 3

[0125]

[0126] The results are shown in Table 4:

[0127] Table 4

[0128]

[0129]

[0130] It can be seen from the data in Table 4 that after removing the spot tester, no adverse reactions were observed on the skin of the volunteers, which indicates that the raw materials used in the facial cleanser of the present invention are safe and non-irritating, have no adverse reactions to the human body, and are highly safe.

[0131] Test Example 4 Foam Evaluation

[0132] The novel soap-based facial cleanser of the present invention was subjected to a foam diameter test using Example 1 as a representative, thereby evaluating the foam of the system.

[0133] Test method:

[0134] (1) First, attach four gaskets to the four corners of the cut glass slide and set aside after preparation;

[0135] (2) Using a bubbler, weigh 10 g of a 15% aqueous solution of the substance to be tested, and bubble it 100 times per minute. After the foam is prepared, set it aside;

[0136] (3) Take a very small amount of foam and place it in the middle of the gasket, cover it with a coverslip, and try to make the foam in a single layer. Use a 4x objective lens of a microscope to observe and photograph it. Repeat at least 3 groups, and select the group with only one layer of bubbles.

[0137] (4) Count the size and number of bubbles in the area, and organize and analyze the experimental data.

[0138] The results are shown in Table 5 and Figure 1 and 2 .

[0139] Table 5

[0140] sample count Average value (μm) median Standard Deviation Example 1 255 159.00 151.01 75.62

[0141] From the results in Table 5, it can be seen that the soap-based facial cleanser of the present invention has better foaming performance, with micron-level foam (159 μm), indicating that the foam is dense and delicate.

[0142] The applicant declares that the present invention illustrates a soap-based facial cleanser and a preparation method thereof through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials of the product of the present invention, addition of auxiliary ingredients, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0143] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0144] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A soap-based facial cleanser, It is characterized in that The components of the soap-based facial cleanser include fatty acid potassium salt, amphoteric surfactant, amino acid surfactant, polymer and water; The polymers include corn starch, acrylic acid (ester) copolymers and polyquaternium-6.

2. The soap-based facial cleanser according to claim 1, It is characterized in that The components of the soap-based cleanser include, by weight, 5-30 parts of fatty acid potassium salt, 1-10 parts of amphoteric surfactant, 0.1-5 parts of amino acid surfactant, 1-10 parts of polymer and 50-95 parts of water; Preferably, the components of the soap-based facial cleanser include, by weight, 5-25 parts of fatty acid potassium salt, 2-10 parts of amphoteric surfactant, 0.1-4 parts of amino acid surfactant, 1-9 parts of polymer and 50-95 parts of water; Preferably, the components of the soap-based facial cleanser include, by weight, 10-25 parts of fatty acid potassium salt, 2-8 parts of amphoteric surfactant, 0.2-4 parts of amino acid surfactant, 2-9 parts of polymer and 50-95 parts of water.

3. The soap-based facial cleanser according to claim 1 or 2, It is characterized in that The mass ratio of the corn starch, acrylic acid (ester) copolymer and polyquaternium salt-6 is (1-4): (1-4): (0.01-0.5); Preferably, the fatty acid potassium salt comprises any one or a combination of at least two of potassium laurate, potassium cocoate, potassium myristic acid, potassium palmitate, potassium palm kernel oleate or potassium stearate; Preferably, the fatty acid potassium salt is a combination of potassium palm kernel oleate and potassium coconut oleate; Preferably, the mass ratio of potassium palm kernel oleate to potassium coconut oleate is 1:(1-20).

4. The soap-based facial cleanser according to any one of claims 1 to 3, It is characterized in that The amphoteric surfactant includes any one of cocamidopropyl betaine, sodium lauroamphoacetate, disodium cocamidoamphodiacetate, cocamidopropyl hydroxysulfonate or lauryl hydroxysulfonate, or a combination of at least two thereof; Preferably, the amphoteric surfactant is lauryl hydroxysulfonate.

5. The soap-based facial cleanser according to any one of claims 1 to 4, It is characterized in that The amino acid surfactant includes any one or a combination of at least two of potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, sodium lauroyl glutamate, sodium cocoyl glutamate, potassium cocoyl glycinate, sodium lauroyl oat amino acids, sodium cocoyl aminopropionate, sodium cocoyl methyl taurate or sodium methyl cocoyl taurate; Preferably, the amino acid surfactant comprises a combination of potassium cocoyl hydrolyzed oat protein and sodium cocoyl glycinate; Preferably, the mass ratio of the potassium cocoyl hydrolyzed oat protein to sodium cocoyl glycinate is (0.1-1):(0.1-3).

6. The soap-based facial cleanser according to any one of claims 1 to 5, It is characterized in that The soap-based cleanser also includes polyols and / or skin conditioners; Preferably, the soap-based facial cleanser further comprises 1-10 parts of polyol and 0.1-5 parts of skin conditioner by weight; Preferably, the polyol includes any one or a combination of at least two of glycerol, butylene glycol, dipropylene glycol or 1,3-propylene glycol; Preferably, the skin conditioning agent comprises any one of panthenol, allantoin, soapberry fruit extract or ethylene glycol stearate, or a combination of at least two thereof.

7. The soap-based facial cleanser as claimed in claim 6, It is characterized in that The skin conditioning agent is a combination of soapberry fruit extract, panthenol, allantoin and ethylene glycol stearate; Preferably, the mass ratio of the soapberry fruit extract, panthenol, allantoin and ethylene glycol stearate is (0.01-0.5):(0.1-1):(0.01-0.5):(0.5-3); Preferably, the soap-based facial cleanser further comprises a preservative and / or a fragrance.

8. A method for preparing the soap-based facial cleanser according to any one of claims 1 to 7, It is characterized in that The preparation method comprises the steps of mixing and dispersing fatty acid potassium salt, amphoteric surfactant, amino acid surfactant, polymer and water to obtain the soap-based cleansing milk.

9. The preparation method according to claim 8, It is characterized in that The preparation method comprises: (1) mixing and dispersing corn starch and polyol to obtain a mixture A; Mix water, potassium cocoate, potassium palm kernel oleate, lauryl hydroxysulfobetaine, potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, soapberry fruit extract, allantoin, and ethylene glycol stearate to obtain a mixture B. (2) heating the mixture A and the mixture B and mixing them; (3) after cooling, add acrylic acid (ester) copolymer and continue mixing and stirring; (4) Continue to cool the mixture and then add polyquaternium-6 and panthenol to mix and homogenize to obtain the soap-based cleanser.

10. The preparation method according to claim 9, It is characterized in that Step (2) wherein the temperature is raised to 80-90° C. Preferably, the temperature in step (3) is lowered to 60-65°C; Preferably, the temperature in step (4) is lowered to 20-45°C; Preferably, step (4) further includes adding preservatives and / or fragrances during the mixing and homogenization.

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