Soap-based cleaning composition as well as preparation method and application thereof

Abstract

The invention discloses a soap-based cleaning composition as well as a preparation method and application thereof, and relates to the technical field of cosmetics. The soap-based cleaning composition comprises the following components in percentage by mass: 0.5-5% of an oil-phase thickener, 15-50% of fatty acid and 5-35% of a humectant, the oil phase thickening agent is a synthetic ester compound. According to the soap-based cleaning composition disclosed by the invention, the synthetic ester compound is added into the soap-based cleaning composition as the oil-phase thickening agent, and the fluidity at a high temperature (50 DEG C) is improved through the synergistic effect between the oil-phase thickening agent and the fatty acid, so that the cleaning composition is stable at the high temperature. The soap-based cleaning composition provided by the invention cannot cause liquid leakage due to flowing of the cleaning composition due to high temperature during storage and transportation, and when a consumer actually uses the soap-based cleaning composition, especially when the soap-based cleaning composition is stored under a high-temperature condition, the actual use feeling of the consumer cannot be influenced due to state change.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to a soap-based cleaning composition and a preparation method and application thereof. Background Art

[0002] When the fatty acid soap cleaning system is exposed to high temperatures, the unneutralized fatty acids melt due to their low melting point, which can easily cause layer separation in the formula system.

[0003] Generally, acrylic acid (ester) copolymers (such as Lubrizol Advanced Materials, Inc.) are added to the system. Aqua SF-1Polymer) increases the viscosity of the system at high temperatures, so that fatty acids do not separate. This type of thickener usually has good salt resistance and is insensitive to temperature. Therefore, when the user applies it, although the shear force during application can spread the product, due to the characteristics of the thickener, it will give the user a gel-like feeling during application, thus affecting the pleasure of use.

[0004] Alternatively, a thickening material with certain emulsifying properties, such as PEG-120 methyl glucose dioleate (e.g. GLUCAMATE from Lubrizol Advanced Materials, Inc.) is added to the formula. TM DOE-120THICKENER) keeps the cleanser stable at high temperatures. The mechanism of this type of raw material is mainly to stabilize the free fatty acids in the formula at high temperatures, thus increasing its high temperature stability. However, when stored at high temperatures, this type of product will become thinner and fluid, so the product may leak during storage and transportation or actual use, thus affecting the consumer experience.

[0005] Alternatively, a higher content of long-chain fatty acids is used to increase the overall melting point, so that the viscosity does not drop significantly at high temperatures, thereby improving stability. However, the fatty acid soaps formed by long-chain fatty acids are inferior to those formed by short-chain fatty acids in terms of foam performance, and the foam is relatively loose and the foaming speed is slow.

[0006] The above two types of raw materials are suspended by thickening or stabilized by emulsification so that the soap-based cleaning system does not separate at high temperatures. The present invention aims to provide a soap-based cleaning composition and its preparation method and application, which reduces the fluidity at high temperatures and stabilizes the product at high temperatures. Its advantages include that the product will not leak due to high temperature during storage and transportation, and when consumers actually use it, especially when the product is stored under high temperature conditions, the actual use experience of consumers will not be affected by changes in state. Summary of the invention

[0007] Since soap-based cleaning agents are highly water-soluble, aqueous thickeners are often added to improve stability when preparing soap-based cleaning agents. Because there are a large number of free fatty acids in soap-based cleaning agents, soap-based cleaning products can have a non-flowing state similar to a cream at room temperature. However, when soap-based cleaning products are exposed to high temperatures, the fatty acids will melt, turning their state into a liquid state, which may affect their stability. The present invention provides a soap-based cleaning composition, a preparation method and an application thereof, and by studying the combination of an oil-phase thickener and fatty acids in a formula, a soap-based cleaning product with non-flowability at high temperatures and dense and rich foam is obtained.

[0008] The specific technical solutions include the following:

[0009] In a first aspect, a soap-based cleaning composition is provided, comprising the following components in percentage by mass: 0.5-5% of an oil phase thickener, 15-50% of a fatty acid, and 5-35% of a moisturizer; the oil phase thickener is a synthetic ester compound.

[0010] Among them, the use of oil-phase thickener can not only improve the stability of the soap-based cleaning composition at high temperatures, but also has the characteristic of not flowing when used at high temperatures, so it does not affect consumers' use; and its foam is rich and delicate, which can bring consumers a pleasant and high-end feeling when used.

[0011] The mechanism of action of the oil phase thickener is that when the soap-based cleaning composition is at a high temperature, more free fatty acids will be produced, and the oil phase thickener present in the formula can well stabilize such free fatty acids in the formula, and make the product have a certain viscosity, so that the fluidity of the product is reduced. On the other hand, since the oil gel formed by the thickening of the oil phase thickener has good thixotropy, the viscosity of the formed gel can be broken after a slight external force is applied, so it will have good thixotropy when used, so that consumers have a better experience. And this oil gel can gel again when the external shear force is removed, so the stability of the product will not be affected by use.

[0012] In addition, in some cleansing product formulas, the proportion of stearic acid with a higher melting point is increased to increase the melting point of the entire formula as a whole, thereby improving its high temperature stability. Because such products do not add aqueous thickeners, they also have good spreadability when pushed open. However, stearic acid has a longer fatty chain, and the foam volume formed by soap-based cleaning products using stearic acid is larger and looser than that formed by other fatty acids. The present invention aims to provide a better foam texture while obtaining a product with better stability, thereby enhancing the consumer's sense of pleasure when using it.

[0013] Furthermore, the fatty acid includes one or more of lauric acid, myristic acid, and palmitic acid.

[0014] Furthermore, the fatty acid also includes stearic acid, and the mass ratio of the oil phase thickener to stearic acid is less than 1:5.

[0015] Furthermore, the mass percentage of the oil phase thickener in the soap-based cleaning composition is 0.5-3%.

[0016] Furthermore, the oil phase thickener is one or more of trihydroxystearin, hydrogenated castor oil, behenyl behenate, and glyceryl behenate.

[0017] Furthermore, the moisturizing agent is one or more of glycerin, dipropylene glycol, 1,3-butylene glycol, propylene glycol, and polyethylene glycol-8.

[0018] Furthermore, the soap-based cleaning composition also includes a neutralization alkali, and the neutralization alkali is one or more of potassium hydroxide, sodium hydroxide, triethanolamine, tromethamine, and aminopropanol.

[0019] In a second aspect, a method for preparing the soap-based cleaning composition according to the first aspect is provided, comprising the following steps:

[0020] S1. The oil phase thickener and fatty acid are heated until melted to obtain an oil phase;

[0021] S2. The humectant and the neutralizing alkali and deionized water are pre-dispersed to obtain an aqueous phase;

[0022] S3. The oil phase and the water phase are mixed, neutralized and saponified at 60-90°C, stirred and cooled to 25-50°C, and then discharged to obtain a soap-based cleaning composition.

[0023] Furthermore, the neutralization rate of the neutralization alkali in step S2 and the fatty acid in step S1 is 70-110%.

[0024] In a third aspect, there is provided use of the soap-based cleaning composition as described in the first aspect in preparing a cleansing cream.

[0025] The beneficial effects of the present invention are as follows: the present invention provides a soap-based cleaning composition and a preparation method and application thereof, wherein a synthetic ester compound is added to the soap-based cleaning composition as an oil phase thickener, and the synergistic effect between the oil phase thickener and the fatty acid is used to improve the fluidity at high temperature (50° C.), so that the cleaning composition is stable at high temperature. The soap-based cleaning composition of the present invention will not leak due to the high temperature causing the cleaning composition to flow during storage and transportation, and when actually used by consumers, especially when the product is stored under high temperature conditions, the actual use experience of consumers will not be affected due to changes in state. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0029] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below.

[0031] The high temperature mentioned in the present invention refers to a temperature condition of 50°C.

[0032] Wherein, the trihydroxystearin described in the present invention is selected from BYEST THSG of BYCHEM; the hydrogenated castor oil is selected from cutina HR Flakes of BASF; the behenyl behenate is selected from DUB BB of DUBDIS; the glyceryl behenate is selected from DUB BG of DUBDIS; the jojoba ester is selected from JojobaWax Flakes of Vantage; the white beeswax is selected from TERBEESWAX white 8044-1in pastilles of TER CHEMICALS; the caprylic / capric triglyceride (and) hydrogenated C6-20 polyolefin (and) HDI / trimethylol hexyllactone crosslinked polymer is selected from oikemia 5s cc of Lubrizol, and the microcrystalline wax is selected from paramelt of Paramel.

[0033] Preparation method of soap-based cleaning composition:

[0034] S1. The oil phase thickener and fatty acid are heated until melted to obtain an oil phase;

[0035] S2. The humectant and the neutralizing alkali and deionized water are pre-dispersed to obtain an aqueous phase;

[0036] S3. The oil phase and the water phase are mixed, neutralized and saponified at 60-90°C, stirred and cooled to 25-50°C, and then discharged to obtain a soap-based cleaning composition.

[0037] Furthermore, the neutralization rate of the neutralization alkali in step S2 and the fatty acid in step S1 is 70-110%.

[0038] Performance Test:

[0039] 1. Discharging status test

[0040] The prepared soap-based cleansing composition is placed at room temperature for more than 24 hours and its appearance is observed. If the soap-based cleansing composition is in a uniform, stable, non-flowing cream state, it is considered successful.

[0041] 2. High temperature (50°C) state test

[0042] The prepared soap-based cleaning composition is placed at a temperature of 50° C. for more than 24 hours, and the appearance of the soap-based cleaning composition is observed. If the soap-based cleaning composition is still in a non-flowing cream state, it is considered successful.

[0043] 3. Usage test

[0044] The prepared soap-based cleansing composition is applied on the skin to test whether the soap-based cleansing composition is difficult to apply.

[0045] 1. Influence of oil phase thickener type

[0046] Example 1

[0047] A soap-based cleaning composition comprising the following components in percentage by weight:

[0048] Oil phase thickener 2% (trihydroxystearin), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0049] The preparation method of the soap-based cleaning composition comprises the following steps:

[0050] S1. The oil phase thickener and fatty acid are heated until melted to obtain an oil phase;

[0051] S2. The moisturizer and the neutralizing base and deionized water are pre-dispersed to obtain an aqueous phase; the neutralization rate of the neutralization base in step S2 and the fatty acid in step S1 is 80%;

[0052] S3. The oil phase and the water phase are mixed, neutralized and saponified at 80°C, stirred and cooled to 35°C, and then discharged to obtain a soap-based cleaning composition.

[0053] Example 2

[0054] A soap-based cleaning composition comprising the following components in percentage by weight:

[0055] Oil phase thickener 2% (hydrogenated castor oil), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0056] Example 3

[0057] A soap-based cleaning composition comprising the following components in percentage by weight:

[0058] Oil phase thickener 2% (behenyl behenate), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0059] Example 4

[0060] A soap-based cleaning composition comprising the following components in percentage by weight:

[0061] Oil phase thickener 2% (glyceryl behenate), fatty acid 28.5% (consisting of stearic acid 7.5%, lauric acid 3%, myristic acid 15% and palmitic acid 3%), moisturizer 28% (consisting of glycerol 25%, 1,3-butylene glycol 3%), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the remainder is deionized water.

[0062] The preparation methods of the soap-based cleaning compositions of Examples 2-4 are the same as that of Example 1.

[0063] Comparative Example 1

[0064] Comparative Example 1 is compared with Example 1 / Example 2 / Example 3 / Example 4, except that jojoba ester is used instead of trihydroxystearin / hydrogenated castor oil / behenyl behenate / glyceryl behenate as the oil phase thickener, and the other conditions are the same.

[0065] Comparative Example 2

[0066] Comparative Example 2 is compared with Example 1 / Example 2 / Example 3 / Example 4, the difference being that white beeswax is used instead of trihydroxystearin / hydrogenated castor oil / behenyl behenate / glyceryl behenate as the oil phase thickener, and the other conditions are the same.

[0067] Comparative Example 3

[0068] Comparative Example 3 is compared with Example 1 / Example 2 / Example 3 / Example 4, except that caprylic acid / capric triglyceride (and) hydrogenated C6-20 polyolefin (and) HDI / trimethylol hexyl lactone crosslinked polymer is used instead of trihydroxystearin / hydrogenated castor oil / behenyl behenate / glyceryl behenate as the oil phase thickener, and the other conditions are the same.

[0069] Comparative Example 4

[0070] Comparative Example 4 is compared with Example 1 / Example 2 / Example 3 / Example 4, the difference being that microcrystalline wax is used instead of trihydroxystearin / hydrogenated castor oil / behenyl behenate / glyceryl behenate as the oil phase thickener, and the other conditions are the same.

[0071] The soap-based cleaning compositions of Examples 1-4 and Comparative Examples 1-4 were tested in a discharge state and a high temperature (50° C.) state. The test results are shown in Table 1 below:

[0072] Table 1 Performance test results of soap-based cleaning compositions of Examples 1-4 and Comparative Examples 1-4

[0073] Example / Comparative Example Discharging status High temperature (50℃) state Example 1 Non-flowing cream Non-flowing cream Example 2 Non-flowing cream Non-flowing cream Example 3 Non-flowing cream Non-flowing cream Example 4 Non-flowing cream Non-flowing cream Comparative Example 1 Ointment Cream Emulsion Comparative Example 2 Emulsion liquid Comparative Example 3 Emulsion liquid Comparative Example 4 Glossy Cream Layering

[0074] Oil phase thickeners can generally be divided into synthetic esters, waxes, natural fats (waxes) and oil gel thickeners. The present invention compares a variety of oil phase thickeners. It can be seen from the test results in Table 1 that the soap-based cleaning compositions of Examples 1-4 of the present invention use different synthetic esters as oil phase thickeners, and the prepared products have good appearance and are non-fluid at high temperatures, which can meet the requirements of storage and transportation. Comparative Examples 1-2 use natural fat (wax) oil phase thickeners respectively, and cannot make cleaning products with the appearance of creams, but are soft or emulsions. At high temperatures, the products also have a certain fluidity and cannot meet the requirements of non-flow during transportation. Comparative Example 3 uses an oil gel oil phase thickener, and cannot make cleaning products with the appearance of creams, but are soft or emulsions. At high temperatures, the products also have a certain fluidity and cannot meet the requirements of non-flow during transportation. Comparative Example 4 uses a hydrocarbon-synthesized wax oil phase thickener, and the soap-based cleaning product obtained has a good appearance gloss, but it will be unstable and stratified after high temperature storage, so it cannot be used to improve its high temperature fluidity. Moreover, the products made with such oil-phase thickeners will undergo recrystallization after being cooled down after high temperature, which will make the soap-based cleaning products harden after returning to room temperature, thus affecting the feeling of use by consumers. Therefore, the oil-phase thickener in the soap-based cleaning composition of the present invention is preferably a synthetic ester compound.

[0075] 2. Influence of the mass percentage content of oil phase thickener

[0076] Example 5

[0077] A soap-based cleaning composition comprising the following components in percentage by weight:

[0078] Oil phase thickener 1% (trihydroxystearin), fatty acid 25.5% (consisting of 4.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0079] Example 6

[0080] A soap-based cleaning composition comprising the following components in percentage by weight:

[0081] Oil phase thickener 0.5% (trihydroxystearin), fatty acid 23% (consisting of 2% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0082] Example 7

[0083] A soap-based cleaning composition comprising the following components in percentage by weight:

[0084] Oil phase thickener 3% (trihydroxystearin), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0085] Comparative Example 5

[0086] A soap-based cleaning composition comprising the following components in percentage by weight:

[0087] Oil phase thickener 5% (trihydroxystearin), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0088] Comparative Example 6

[0089] A soap-based cleaning composition comprising the following components in percentage by weight:

[0090] Oil phase thickener 0.2% (trihydroxystearin), fatty acid 28.5% (consisting of 7.5% stearic acid, 3% lauric acid, 15% myristic acid and 3% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0091] The preparation methods of the soap-based cleaning compositions of Examples 5-7 and Comparative Examples 5-6 are the same as that of Example 1.

[0092] The soap-based cleaning compositions of Examples 5-7 and Comparative Examples 5-6 were subjected to a use feeling test and a high temperature (50° C.) state test. The test results are shown in Table 2 below:

[0093] Table 2 Performance test results of soap-based cleaning compositions of Examples 5-7 and Comparative Examples 5-6

[0094] Example / Comparative Example Usage High temperature (50℃) state Example 5 Easy to apply No flow Example 6 Easy to apply No flow Example 7 Easy to apply No flow Comparative Example 5 Difficult to apply No flow Comparative Example 6 Easy to apply flow

[0095] It can be seen from the test results in Table 2 that the soap-based cleaning composition of the embodiment of the present invention has a better feel in use and does not flow at high temperature, while the soap-based cleaning composition (Comparative Example 5, Comparative Example 6) prepared by not being within the mass percentage content limit of the oil-phase thickener of the present invention has a poor feel in use or high temperature state test effect. This is because when the mass percentage content of the oil-phase thickener is appropriate, it can effectively increase the viscosity of the soap-based cleaning composition at high temperature, thereby improving the stability of the product. There are also corresponding constraints on its addition amount. If the oil-phase thickener is added in excess, the material body will become thicker, making it difficult to push away, thereby affecting the consumer's sense of use. On the contrary, if the amount of the oil-phase thickener added is too low, the high temperature stability of the material body cannot be improved. Therefore, preferably, the mass percentage content of the oil-phase thickener in the soap-based cleaning composition of the present invention is preferably 0.5-5%, more preferably 0.5-3%.

[0096] 3. Influence of the mass ratio of oil phase thickener to stearic acid

[0097] Example 8

[0098] A soap-based cleaning composition comprising the following components in percentage by weight:

[0099] Oil phase thickener 2% (trihydroxystearin), fatty acid 28% (myristic acid), moisturizer 28% (composed of 25% glycerol and 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0100] Comparative Example 7

[0101] A soap-based cleaning composition comprising the following components in percentage by weight:

[0102] Oil phase thickener 2% (trihydroxystearin), fatty acid 28.5% (consisting of 11.4% stearic acid, 5.7% lauric acid, 5.7% myristic acid and 5.7% palmitic acid), moisturizer 28% (consisting of 25% glycerol, 3% 1,3-butylene glycol), neutralizing alkali (potassium hydroxide, adjusted to a neutralization ratio of 80%), and the balance is deionized water.

[0103] The preparation methods of the soap-based cleaning compositions of Example 8 and Comparative Example 7 are the same as that of Example 1.

[0104] The soap-based cleaning compositions of Example 1, Example 8 and Comparative Example 7 were subjected to a use feeling test and a high temperature (50° C.) state test. The test results are shown in Table 3 below:

[0105] Table 3 Performance test results of soap-based cleaning compositions of Example 1, Example 8 and Comparative Example 7

[0106] Example / Comparative Example Usage High temperature (50℃) state Example 1 Easy to apply No flow Example 8 Easy to apply No flow Comparative Example 7 Difficult to apply No flow

[0107] It is known from the common sense in the art that the ratio of fatty acids in the cleansing cream will affect the quality of the foam. The bubbles formed by long-chain fatty acids are relatively sparse and large, and the foam formed by short-chain fatty acids is dense. In addition, the chain length of fatty acids also affects the melting performance of the cleansing cream itself. In general, the cleansing formula selects stearic acid with a higher melting point in fatty acids as the main fatty acid in order to make the cleansing product not have fluidity at high temperatures. Since the fatty acid with a higher melting point in the fatty acid is similar to the role of the oil phase thickener mentioned in the present invention in formula stability, therefore, the soap-based cleaning composition of the present invention does not need to add stearic acid to achieve the technical effect of formula stability. However, if stearic acid is added as a fatty acid in the soap-based cleaning composition of the present invention, the mass ratio of stearic acid to the oil phase thickener should be less than 5: 1. If the ratio of stearic acid to the oil phase thickener in the formula is too high, the formula is prone to the problem of being difficult to apply. It can also be seen from the test results of Table 3 that if the mass ratio of the oil phase thickener to stearic acid that is not within the scope of the present invention is adopted (Comparative Example 7), the soap-based cleaning composition obtained is difficult to apply. It can be seen that the present invention aims to obtain a product with better stability through the synergistic effect of the oil phase thickener and the fatty acid, while providing a better foam texture and enhancing the pleasure of consumers during use.

[0108] 4. Influence of thickener type

[0109] Comparative Example 8

[0110] The difference between Comparative Example 8 and Example 1 is that a neutralized acrylic acid (ester) copolymer (aqueous thickener) is used instead of trihydroxystearin, and the other conditions are the same.

[0111] The soap-based cleaning composition of Comparative Example 8 was subjected to a discharge state test and a use feeling test. The test results are shown in Table 4 below:

[0112] Table 4 Performance test results of soap-based cleaning composition of Comparative Example 8

[0113] Comparative Example Discharging status Usage Comparative Example 8 Gel Gel-like feel, poor spreadability

[0114] It can be seen from the test results in Table 4 that the soap-based cleaning composition is thickened by adding an aqueous thickener, because the soap-based cleaning system contains a large amount of salt, which will weaken the thickening effect of the aqueous thickener. By adding a large amount of aqueous thickener, the product prepared will have a gel feeling, and the thixotropy of such products is poor. Therefore, when consumers actually use it, the product will feel like a gel when it is pushed open, and the spreadability is poor, which further affects the pleasure of use.

[0115] In summary, the soap-based cleaning composition provided by the present invention, and its preparation method and application, by adding a synthetic ester compound as an oil phase thickener to the soap-based cleaning composition, and by the synergistic effect between the oil phase thickener and the fatty acid, the fluidity at high temperature (50° C.) is improved, and the cleaning composition is stable at high temperature. The soap-based cleaning composition of the present invention will not cause leakage due to the high temperature causing the cleaning composition to flow during storage and transportation, and when consumers actually use it, especially when the product is stored under high temperature conditions, the actual use experience of consumers will not be affected due to changes in state.

[0116] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A soap-based cleaning composition, characterized in that The invention comprises the following components in percentage by weight: 0.5-5% of an oil phase thickener, 15-50% of a fatty acid and 5-35% of a moisturizer; the oil phase thickener is a synthetic ester compound.

2. The soap-based cleaning composition according to claim 1, characterized in that The fatty acid includes one or more of lauric acid, myristic acid and palmitic acid.

3. The soap-based cleaning composition according to claim 2, characterized in that The fatty acid also includes stearic acid, and the mass ratio of the oil phase thickener to stearic acid is less than 1:

5.

4. The soap-based cleaning composition according to claim 1, characterized in that The mass percentage of the oil phase thickener in the soap-based cleaning composition is 0.5-3%.

5. The soap-based cleaning composition according to claim 1, characterized in that The oil phase thickener is one or more of trihydroxystearin, hydrogenated castor oil, behenyl behenate, and glyceryl behenate.

6. The soap-based cleaning composition according to claim 1, characterized in that The moisturizing agent is one or more of glycerin, dipropylene glycol, 1,3-butylene glycol, propylene glycol, and polyethylene glycol-8.

7. The soap-based cleaning composition according to claim 1, characterized in that The method further comprises a neutralization base, wherein the neutralization base is one or more of potassium hydroxide, sodium hydroxide, triethanolamine, tromethamine, and aminopropanol.

8. The method for preparing a soap-based cleaning composition according to claim 7, characterized in that: The following steps are involved: S1. The oil phase thickener and fatty acid are heated until melted to obtain an oil phase; S2. The humectant and the neutralizing alkali and deionized water are pre-dispersed to obtain an aqueous phase; S3. The oil phase and the water phase are mixed, neutralized and saponified at 60-90°C, stirred and cooled to 25-50°C, and then discharged to obtain a soap-based cleaning composition.

9. The method for preparing a soap-based cleaning composition according to claim 8, characterized in that: The neutralization rate of the neutralization alkali in step S2 and the fatty acid in step S1 is 70-110%.

10. Use of the soap-based cleaning composition according to any one of claims 1 to 7 in the preparation of a facial cleansing cream.