Mild and moist skin cleaning agent and preparation method thereof

Abstract

The invention relates to the field of A61K8 / 18, in particular to a mild and moist skin cleanser and a preparation method thereof.The mild and moist skin cleanser is at least prepared from, by mass, 1-50% of an emulsifier, 1-50% of a foaming agent, 1-50% of grease and 1-20% of a greasing agent.The mild and moist skin cleanser is prepared from, by mass, 1-50% of an emulsifier, 1-50% of a foaming agent, 1-50% of grease and 1-20% of a greasing agent.By adopting a whole-oil formula system and dissolving oil in oil, the grease secreted on the surface of a body from pores can be cleaned away, and the skin can be moisturized. The skin cleaning agent is capable of deeply cleaning grease in pores, fully ensuring the cleaning effect, effectively overcoming the defects of bath products in the market, moistening and moisturizing the skin after being washed by the provided skin cleaning agent, and not greasy, and meets the use requirements of consumers.

Description

Technical Field

[0001] The invention relates to the field of A61K8 / 18, in particular to a mild and moisturizing skin cleanser and a preparation method thereof. Background Art

[0002] There are mainly two types of existing commercially available shower gels, one of which is a saponified shower gel formed by high-temperature saponification of fatty acids and potassium hydroxide or sodium hydroxide, but such shower gels are difficult to thicken, have strong alkalinity, strong cleaning power, and are highly irritating, and are prone to dry skin, tightness, and itching after bathing; the other is a surfactant-type shower gel, which is falsely slippery, has residues, is not clean after washing, and has large irritation of some surfactants, causing problems such as skin sensitivity. Chinese patent (publication number is CN117338612A) discloses a moisturizing shower gel with low fatty acid content and a preparation method thereof, which mainly reduces the dry skin problem after bathing by reducing the content of fatty acids in the shower gel system, but it is still a saponified shower gel formed by high-temperature saponification of fatty acids and neutralizers in essence, and the moisturizing agent added in its system does not significantly improve the moisturizing effect after bathing. With the acceleration of the rhythm of modern life and the improvement of living conditions, for the defects of bathing products on the market, a skin cleanser that is moisturizing and non-greasy after washing is developed, which is crucial for satisfying the use needs of consumers. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a mild and moisturizing skin cleanser, which effectively overcomes the defects of bath products on the market, makes the provided skin cleanser moisturizing and non-greasy after washing, and meets the use needs of consumers.

[0004] On one hand, the present invention provides a mild and moisturizing skin cleanser, wherein the raw materials for its preparation at least include, by mass percentage: 1-50% of emulsifier, 1-50% of foaming agent, 1-50% of oil, and 1-20% of fat excipient.

[0005] Preferably, the raw materials for preparing the mild and moisturizing skin cleanser include at least 5-50% of emulsifier, 5-50% of foaming agent, 2-50% of oil, and 2-20% of fat excipient, calculated by mass percentage.

[0006] As a preferred technical solution, the emulsifier is selected from at least one of laureth-4, laureth-3, cocamide methyl MEA, and sorbitan polyether-30 tetraoleate.

[0007] As a preferred technical solution, the mass ratio of the oil to the foaming agent is (5-50): (2-50).

[0008] As a preferred technical solution, the foaming agent is lauryl alcohol polyether sulfate TIPA salt and / or lauryl alcohol polyether sulfate MIPA salt, preferably lauryl alcohol polyether sulfate TIPA salt.

[0009] As a preferred technical solution, the oil is selected from at least one of corn germ oil, grape seed oil, sunflower seed oil, macadamia seed oil, jojoba seed oil, olive oil, castor oil, meadowfoam seed oil, camellia seed oil, ethylhexyl palmitate, caprylic / capric triglyceride, tri(ethylhexanoic acid)glyceride, white oil, and isohexadecane.

[0010] Preferably, the oil is at least one of corn germ oil, grape seed oil, sunflower seed oil and ethylhexyl palmitate.

[0011] As a preferred technical solution, the fat excipient is selected from at least one of PEG-7 glyceryl cocoate and PEG-6 caprylic / capric glyceride.

[0012] The skin cleanser provided by the present invention adopts a full oil formula system, and uses oil to dissolve oil. In addition to cleaning the grease secreted by the pores on the surface of the body, it can also deeply clean the grease in the pores, fully ensuring the cleaning effect. Further, by optimizing the selection of emulsifiers and foaming agents in the system and controlling the amount of addition, while ensuring the stability of the skin cleanser, when the provided skin cleanser is used in the bath, the emulsifier in the formula is emulsified with grease (including grease cleaned from the body) and water, and is rinsed clean by water, achieving a residue-free, non-greasy use effect. Further, by introducing lauryl alcohol polyether sulfate TIPA salt as a foaming agent, and coordinating the mass ratio of grease to foaming agent in the system to (5-50): (2-50), the stability of the skin cleanser is further guaranteed, the product is non-irritating, and the use effect is good.

[0013] Another aspect of the present invention provides a method for preparing a mild and moisturizing skin cleanser, which comprises at least the following steps: pre-stirring and mixing an emulsifier and a foaming agent until transparent, and sequentially adding oil and a fat excipient and stirring and mixing to obtain a mild and moisturizing skin cleanser.

[0014] The mild and moisturizing skin cleanser provided by the present invention has a wide range of raw material sources, low production cost, simple production process, high production efficiency, and is easy to realize large-scale industrial production, promotion and application.

[0015] Beneficial Effects

[0016] 1. The present invention provides a mild and moisturizing skin cleanser, which effectively overcomes the defects of bath products on the market, makes the provided skin cleanser moisturizing and non-greasy after washing, and meets the use needs of consumers.

[0017] 2. The skin cleanser provided by the present invention adopts a full oil formula system to dissolve oil in oil. In addition to cleaning the oil secreted by pores on the surface of the body, it can also deeply clean the oil in the pores, fully ensuring the cleaning effect.

[0018] 3. By optimizing the selection of emulsifiers and foaming agents in the system and controlling the amount of addition, the stability of the skin cleanser is ensured while the emulsifier in the formula is emulsified with oil (including oil cleansed from the body) and water when the skin cleanser is used in the bath and is rinsed clean by water, achieving a residue-free and non-greasy use effect.

[0019] 4. The present invention introduces lauryl alcohol polyether sulfate TIPA salt as a foaming agent, and controls the mass ratio of oil and foaming agent in the system to be (5-50): (2-50), thereby further ensuring the stability of the skin cleanser, and the product is non-irritating and has a good use effect.

[0020] 5. The mild and moisturizing skin cleanser provided by the present invention has a wide range of raw materials, low production cost, simple production process, high production efficiency, and is easy to achieve large-scale industrial production, promotion and application. DETAILED DESCRIPTION

[0021] The raw materials and their sources in the examples of the present invention are shown in Table 1.

[0022] Table 1

[0023]

[0024] Examples 1-6, Comparative Examples 1-2

[0025] On the one hand, Examples 1-6 and Comparative Examples 1-2 of the present invention provide a mild and moisturizing skin cleanser. The raw materials for its preparation are shown in Table 2 in terms of mass percentage.

[0026] Table 2

[0027]

[0028]

[0029] Note: “\” in Table 2 indicates that the amount of the corresponding raw material added is 0.

[0030] On the other hand, Examples 1-6 and Comparative Examples 1-2 of the present invention provide a method for preparing a mild and moisturizing skin cleanser, comprising the following steps: pre-stirring and mixing an emulsifier and a foaming agent until transparent, and sequentially adding oil and a fat excipient and stirring and mixing to obtain a mild and moisturizing skin cleanser.

[0031] Performance Testing

[0032] 1. Stability test: The mild and moisturizing skin cleansers provided in Examples 1-6 and Comparative Examples 1-2 were subjected to stability tests. The mild and moisturizing skin cleansers were placed in an environment at 48°C, 5°C, -18°C, light, and room temperature (25°C). One week was an observation period. The appearance and fragrance changes of the products were observed and recorded. The results are shown in Table 3.

[0033] Table 3

[0034]

[0035]

[0036] 2. Human trial investigation test

[0037] 30 volunteers were selected to use the skin cleansers prepared in the examples and comparative examples successively, and the effects of their use were evaluated after use. Whether the volunteers agreed that the products had the characteristics of "moisturizing without tightness; moisturizing effect; rinsed clean without residue, non-greasy; mild and non-irritating" after use, the results were "strongly disagree, disagree, neither agree nor disagree, agree, strongly agree", and the total proportion of "agree" and "strongly agree" in the survey results was statistically analyzed, and the results are shown in Table 4.

[0038] Table 4

[0039]

[0040]

[0041] 3. Irritation test: According to the chicken embryo chorioallantoic membrane test for cosmetic eye irritation / corrosion (SN / T2329-2009), the irritation of the skin cleansing products provided in the examples and comparative examples was tested. The test results are shown in Table 5.

[0042] Table 5

[0043] Example ES value Irritating results Example 1 6.3 No / mild irritation Example 2 6.0 No / mild irritation Example 3 6.7 No / mild irritation Example 4 5.2 No / mild irritation Example 5 3 No / mild irritation Example 6 5.6 No / mild irritation Comparative Example 1 15 Moderate irritation Comparative Example 2 13 Moderate irritation

Claims

1. A mild and moisturizing skin cleanser, characterized in that: Calculated by mass percentage, the raw materials for its preparation at least include: 1-50% of emulsifier, 1-50% of foaming agent, 1-50% of oil and fat, and 1-20% of fat excipient.

2. The mild and moisturizing skin cleanser according to claim 1, characterized in that: The emulsifier is selected from at least one of laureth-4, laureth-3, cocamide methyl MEA, and sorbitan polyether-30 tetraoleate.

3. The mild and moisturizing skin cleanser according to claim 2, characterized in that: The foaming agent is lauryl alcohol polyether sulfate TIPA salt and / or lauryl alcohol polyether sulfate MIPA salt.

4. The mild and moisturizing skin cleanser according to claim 3, characterized in that: The oil is selected from at least one of corn germ oil, grape seed oil, sunflower seed oil, macadamia seed oil, jojoba seed oil, olive oil, castor oil, meadowfoam seed oil, camellia seed oil, ethylhexyl palmitate, caprylic / capric triglyceride, tri(ethylhexanoic acid)glyceride, white oil, and isohexadecane.

5. The mild and moisturizing skin cleanser according to claim 4, characterized in that: The oil is at least one of corn germ oil, grape seed oil, sunflower seed oil and ethylhexyl palmitate.

6. The mild and moisturizing skin cleanser according to claim 5, characterized in that: The mass ratio of the oil to the foaming agent is (5-50):(2-50).

7. The mild and moisturizing skin cleanser according to claim 6, characterized in that: The fat excipient is selected from at least one of PEG-7 glyceryl cocoate and PEG-6 caprylic / capric glycerides.

8. The mild and moisturizing skin cleanser according to claim 7, characterized in that: Calculated by mass percentage, the raw materials for preparing the mild and moist skin cleanser at least include: 5-50% of emulsifier, 5-50% of foaming agent, 2-50% of oil, and 2-20% of fat excipient.

9. The mild and moisturizing skin cleanser according to claim 8, characterized in that: The foaming agent is lauryl alcohol polyether sulfate TIPA salt.

10. A method for preparing the mild and moisturizing skin cleanser according to any one of claims 1 to 9, characterized in that: At least the following steps are included: Pre-stir the emulsifier and foaming agent until they are transparent, then add the oil and fat excipient in turn and stir to obtain a mild and moisturizing skin cleanser.

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