CN115137682A

CN115137682A - Mild, soft and moist preservative-free soap-based facial cleanser and preparation method thereof

Info

Publication number: CN115137682A
Application number: CN202210950250.6A
Authority: CN
Inventors: 牛牧
Original assignee: Shengshi Chuanmei Suzhou Biotechnology Co ltd
Current assignee: Shengshi Chuanmei Suzhou Biotechnology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-10-04

Abstract

The invention discloses a mild, soft and preservative-free soap-based cleansing cream and a preparation method thereof, and relates to the technical field of cosmetics, wherein the soap-based cleansing cream comprises the following components in percentage by mass: stearic acid: 5% -10%, myristic acid 15% -20%, lauric acid 2% -7%, skin-feel conditioner: 0.05% -2% of glycolipid, 0.5% -5% of soapberry fruit extract, 0.1% -3% of amino acid compound, and the following components in percentage by weight: 18% -28% of glycerol, 5% -15% of butanediol, 325% -10% of polyethylene glycol-325%, 0.5% -1.5% of 1,2-hexanediol and a suspension stabilizer: polyethylene glycol-90M0.01% -0.1%, and other auxiliary components: and (4) the balance. According to the invention, the unsmooth feeling and tight feeling of the back surface cleaned by using the traditional soap base facial cleanser are successfully reduced by the special proportion among the glycolipid, the soapberry extract and the amino acid compound, and the serious problem of unstable formula of a soap base system is successfully solved by the compound use among various polyols and the filling effect of polyethylene glycol-90M in the system.

Description

Mild, soft and moist preservative-free soap-based facial cleanser and preparation method thereof

Technical Field

The invention relates to the technical field of cleaning cosmetics, in particular to a mild, soft and preservative-free soap-based cleansing cream and a preparation method thereof.

Background

The face cleaning product is the most demanded face cleaning product in the market at present, belongs to cleaning cosmetics, is used for cleaning and nursing the facial skin of a human body, and is also the first step of all skin care processes.

The facial cleansing products can be mainly divided into two categories, namely, cleansing products and makeup removing products, and the cleansing products can be divided into soap-based cleansing and amino acid-based cleansing according to different systems. As consumers place more and more importance on facial cleansing, they have more and more demanding facial cleansing products, which are a popular choice among most consumers in the soap-based system, and have different skin types and age groups.

The soap base face cleaning product has the characteristics of rich foam and strong cleaning capability, gives people an ultra-clean feeling after use, and is particularly comfortable to use in summer. The main body of the soap is a fatty acid salt generated by the neutralization reaction (saponification reaction) of composite fatty acid and strong alkali, and the fatty acid salt is an anionic surfactant with super-strong cleaning capability and can play a role in deeply cleaning skin. The neutralization reaction in the preparation process is an unstable factor in the system and is usually manifested by phenomena of paste layering, thinning, nozzle water outlet and the like.

The super-strong cleaning ability is one of the advantages of the soap-based face cleaning product, and due to the cleaning ability, the water on the skin is taken away by the dirt removing colleagues, so that the skin can feel tight after the face cleaning product is used by people, and the skin can be excessively cleaned and irritated after the face cleaning product is used for a long time. Consumers of sensitive and dry skin are afraid of using this type of cleanser.

In combination with the advantages and disadvantages of soap-based cleansing products, many complex soap-based cleansing products appear on the market at present, and the stability of the system cannot be well solved while the skin feeling is improved. The stability of the soap-based system cleansing product becomes a technical difficulty.

Disclosure of Invention

The invention aims to provide a mild, soft and preservative-free soap-based cleansing cream and a preparation method thereof, so as to solve the problems in the process.

In order to achieve the purpose, the invention provides the following technical scheme: a mild, soft and preservative-free soap-based facial cleanser comprises the following components in percentage by mass:

fatty acid: stearic acid: 5% -10%, myristic acid 15% -20%, and lauric acid 2% -7%;

skin feel conditioner: glycolipid 0.05% -2%, soapberry fruit extract 0.5% -5%, amino acid compound 0.1% -3%;

polyol: 18% -28% of glycerol, 5% -15% of butanediol, 325% -10% of polyethylene glycol, 1,2-hexanediol, 0.5% -1.5%;

suspension stabilizer: polyethylene glycol-90M0.01% -0.1%;

other auxiliary components: and (4) the balance.

As a further preferable scheme of the invention, the total mass of the fatty acid in the soap-based facial cleanser accounts for 25-31%.

As a further preferable scheme of the invention, the total mass of the skin-feel conditioning agent in the soap-based facial cleanser accounts for 1-6%.

As a further preferable scheme of the invention, the total mass of the polyhydric alcohols in the soap-based facial cleanser accounts for 30-38%.

As a further preferable scheme of the invention, the total mass of the suspension stabilizer in the soap-based facial cleanser accounts for 4736 to 0.1 percent of the mass of the polyethylene glycol-90M0.01 percent.

As a further preferable scheme of the invention, the proportion of the glycolipid, the soapberry extract and the amino acid complex in the skin-feel conditioner is 1.

As a further preferable embodiment of the present invention, the auxiliary component is selected from one or more of neutralizing agent, emulsifier, grease, essence, and deionized water.

As a further preferred embodiment of the present invention, the neutralizing agent is potassium hydroxide;

the emulsifier is one or more of PEG-100 stearate, glyceryl stearate, cetearyl alcohol and cetearyl glucoside;

the oil is one or more of squalane, olive oil, white beeswax and shea butter.

A preparation method of a mild, soft and preservative-free soap-based cleansing cream comprises the following steps:

step one, adding fatty acid, polyalcohol, an emulsifier and grease into an emulsifying pot according to the weight percentage of the raw materials, stirring, heating to 80-85 ℃, and stirring until the raw materials are completely dissolved to obtain a phase A mixture;

step two, adding water and a neutralizer into a water phase pot according to the weight percentage of the raw materials, and stirring until the water and the neutralizer are completely dissolved to obtain a B phase mixture;

step three, slowly pumping the B-phase mixture in the water phase pot into an emulsifying pot to perform saponification reaction with the A-phase mixture, and cooling after stirring for 45 minutes;

step four, cooling to 60 ℃, adding the skin feel conditioner, and uniformly stirring;

step five, cooling to 45 ℃, adding essence, and uniformly stirring;

and step six, cooling to 38-40 ℃, and discharging.

In the third step, during the saponification reaction, the phase B is slowly pumped into an emulsifying pot and stirred simultaneously, so as to avoid generating soap blocks and bubbles and influencing the stability of the system.

Compared with the prior art, the invention has the beneficial effects that:

aiming at the defects that the soap base has strong degreasing power, takes away a large amount of moisture on the skin, and causes a user to generate a tight feeling and even feel skin irritation, the perfect matching among the glycolipid, the soapberry extract and the amino acid compound is selected, the proportion among the glycolipid, the soapberry extract and the amino acid compound is further optimized, the moisture on the skin is successfully locked, the skin is moistened, the tight feeling is not generated, and the irritation of the soap to the skin is reduced. However, the addition of skin feel conditioning agents can affect the stability of the soap-based system, and may cause problems such as delamination, soap particle precipitation, or nozzle water discharge. According to the invention, through comparison and screening, glycerol, butanediol, polyethylene glycol-32 and 1,2 hexanediol are selected from multiple polyols, the content of the glycerol, butanediol, polyethylene glycol-32 and 1,2 hexanediol is increased to more than 35%, and respective proportions are further optimized, so that the glycerol, butanediol, polyethylene glycol-32 and hexanediol are used for dissolving soap grains and moisturizing in a system. Meanwhile, a high-molecular suspension stabilizer polyethylene glycol-90M is screened, and the suspension stabilizer can play a filling role in a system and is filled into the dissolved soap particles, so that the soap particles and other raw materials in the system can be uniformly distributed for a long time, and the phenomena of deposition or precipitation and the like can not occur. The adding proportion of the compound in the system is further optimized, and the stability of the system is ensured. The invention also establishes a good antiseptic system by adding the polyalcohol 1,2-hexanediol to compound the p-hydroxyacetophenone, and eliminates the sensitization hidden trouble caused by the traditional antiseptic.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: a mild, soft and preservative-free soap-based cleansing cream comprises the following components in percentage by mass:

polyol: 18 to 28 percent of glycerin, 5 to 15 percent of butanediol, 325 to 10 percent of polyethylene glycol-5363 percent of hexanediol, 0.5 to 1.5 percent of 1,2 percent;

suspension stabilizer: polyethylene glycol-90M0.01% -0.1%;

other auxiliary components: and (4) the balance.

Wherein the total mass of the fatty acid in the soap-based facial cleanser is 25-31%, the total mass of the skin-feel conditioner in the soap-based facial cleanser is 1-6%, the total mass of the polyalcohol in the soap-based facial cleanser is 30-38%, and the total mass of the suspension stabilizer in the soap-based facial cleanser is polyethylene glycol-90M0.01-0.1%.

The skin feel conditioner comprises the following components in percentage by weight of 1; the emulsifier is one or more of PEG-100 stearate, glyceryl stearate, cetearyl alcohol and cetearyl glucoside; the oil is one or more of squalane, olive oil, white beeswax and shea butter.

step three, slowly pumping the phase B mixture in the water phase pot into an emulsifying pot to perform saponification reaction with the phase A mixture, keeping the temperature and stirring for 45 minutes, and then cooling, slowly pumping the phase B into the emulsifying pot during the saponification reaction, and stirring simultaneously to avoid generating soap blocks and bubbles and influencing the stability of the system;

step four, cooling to 60 ℃, adding a skin feel conditioner, and uniformly stirring;

step five, cooling to 45 ℃, adding essence, and uniformly stirring;

and sixthly, cooling to 38-40 ℃, and discharging.

The implementation case is as follows:

the total content of fatty acid and the ratio of formation in the following examples and comparative examples were substantially the same,

the moisture content of skin after cleaning was determined by selecting 30 test subjects, and testing the samples of different examples and comparative examples simultaneously, i.e. the test subjects measured the moisture content of the skin on the face using moisturmeersc before the face was cleaned, recording and calculating the average value, then the left face was cleaned using the samples of examples, while the right face was cleaned using the samples of comparative examples, and the skin content after 5 minutes, 10 minutes, 30 minutes after the face was cleaned using moisturmeersc, recording and calculating the average value, the higher the hydration content of the stratum corneum, the better the moisturizing effect of the samples.

Examples 1 to 5 and comparative examples 1 to 4

Formulation compositions in table 1 soap-based cleansing creams of examples 1-5 and comparative examples were formulated, all percentages, ratios being calculated on the basis of the total mass of the components of the present invention and expressed as% unless otherwise indicated.

Table 1 formulation composition soap-based facial cleansers of examples 1-5 and comparative examples

The soap-based cleansing pastes of examples 1 to 5 and comparative examples 1 to 4 were prepared as follows:

(1) Sequentially adding the fatty acid, the polyol, the grease and other raw materials in the phase A into an emulsifying pot according to the mass percentage of the raw materials, stirring, heating to 80-85 ℃, and stirring until the raw materials are completely dissolved;

(2) Sequentially adding deionized water, potassium hydroxide and other raw materials in the phase B into a water phase pot according to the mass percentage of the raw materials, and stirring until the deionized water, the potassium hydroxide and other raw materials are completely dissolved;

(3) Slowly pumping the phase B in the water phase pot into an emulsifying pot, simultaneously stirring for saponification reaction, controlling the speed of pumping the phase B into the emulsifying pot in the process, avoiding generating soap blocks and a large amount of bubbles to influence the stability and the appearance of the paste, and cooling after stirring for 45 minutes;

(4) Cooling to 60 ℃, sequentially adding the phase C, and uniformly stirring;

(5) Cooling to 45 ℃, adding essence, and stirring uniformly;

(6) Cooling to 38-40 deg.c and discharging.

Skin moisture content testing:

the soap-based cleansing cream samples of examples 1-5 and comparative examples 1-4 were tested according to the method for measuring skin moisture content described above, and the test results are shown in the following table 2:

table 2 table of results of tests performed on soap-based facial cleanser samples of examples 1-5 and comparative examples 1-4

From the above test results, it is possible to obtain:

the test results of the soap-based cleansing cream samples in examples 1 to 5 of the invention show that the skin moisture loss is less and the skin recovers quickly after the use of a tester, which indicates that the skin feel conditioner in the C phase can obviously play a role in locking water in the system, thereby achieving the purpose of moisturizing. The test results for the soap-based facial cleanser sample of the comparative example showed that the moisture on the skin was lost more after use by the test subjects and that the moisture on the skin did not return to before use within 30 minutes of the test period.

Testing the tight feeling of the cleaned face:

the method for testing the clean face tightness comprises the steps of selecting 30 testers, testing samples and comparative examples of different embodiments at the same time, then enabling the testers to score the used face tightness, wherein the score range is 0-10, the higher the score is, the stronger the tightness is, and after the 30 testers score, calculating an average value, namely the final score of the clean face tightness of the sample.

The soap-based cleansing cream samples of examples 1-5 and comparative examples 1-4 were tested according to the above test methods and scoring criteria, and the test results are shown in table 3 below:

table 3 soap-based cleansing cream samples of examples 1 to 5 and comparative examples 1 to 4 were subjected to a test table

The results of the tests according to table 3 show that the soap-based facial cleansers of examples 1-5 provide good facial tightness after use, while the soap-based facial cleansers of comparative examples 1-4 provide significant facial tightness after use. This is a good indication that the skin feel conditioning agents of phase C of the present invention are able to significantly reduce facial tightness in the system following cleansing with a soap-based facial cleanser.

And (3) testing the high-temperature stability:

the high temperature stability test method is a method for testing the stability of the soap-based cleansing cream products in examples 1 to 5 and comparative examples 1 to 4 according to GB/29680 (type II), and the heat resistance stability of the soap-based cleansing cream samples is tested by placing the soap-based cleansing cream samples in a constant temperature oven at 45 ℃ for 90 days.

The soap-based cleansing compositions of examples 1 to 5 and comparative examples 1 to 4 were examined for 90 days at a constant temperature of 45 ℃ and heat resistance, and the results are shown in the following Table 4:

TABLE 4 table for investigation of heat resistance at 45 ℃ over 90 days for soap-based facial cleanser samples of examples 1-5 and comparative examples 1-4

The test results in Table 4 show that phase C of the present invention provides water retention and reduced facial tightness in the system without affecting the high temperature stability of the system.

Human body occlusion patch test:

human body closed patch test method the soap-based cleansing cream samples of examples 1 to 5 and comparative examples 1 to 4 were subjected to a human body closed patch test with reference to the test method of technical specifications for cosmetic safety (2015 edition).

The results of the human body occlusion patch test performed on the soap-based facial cleanser samples of examples 1-5 and comparative examples 1-4 are shown in table 5 below:

TABLE 5 table of results of the human occlusion patch test in examples 1-5 and comparative examples 1-4

The test results according to table 5 show that: the results of the soap-based facial cleanser samples tested in examples 1-5 are all 0, indicating that phase C of the present invention has some effect in reducing the irritation of soap-based facial cleansers in the system. It also has effects in keeping moisture and reducing tension after use. The results of the soap-based facial cleanser sample tests in comparative examples 1-4 indicate that the system is still somewhat irritating to the skin.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The mild, soft and preservative-free soap-based facial cleanser is characterized by comprising the following components in percentage by mass:

suspension stabilizer: polyethylene glycol-90M0.01% -0.1%;

other auxiliary components: and (4) the balance.

2. The mild, soft and preservative-free soap-based facial cleanser according to claim 1, wherein the total mass of fatty acids in the soap-based facial cleanser is 25% -31%.

3. The mild, soft and preservative-free soap-based facial cleanser according to claim 1, wherein the total mass of the skin-feel conditioning agent in the soap-based facial cleanser is 1% -6%.

4. The mild, soft and preservative-free soap-based facial cleanser according to claim 1, wherein the total mass of the polyhydric alcohol in the soap-based facial cleanser is 30% -38%.

5. The mild, soft and preservative-free soap-based facial cleanser according to claim 1, wherein the total mass of the suspension stabilizer in the soap-based facial cleanser is polyethylene glycol-90M0.01% -0.1%.

6. The mild, soft and preservative-free soap-based cleansing cream according to claim 3, wherein the ratio of glycolipid, soapberry extract and amino acid complex in said skin-feel conditioner is 1.

7. The mild, soft and preservative-free soap-based cleansing cream of claim 1, wherein the auxiliary ingredients are selected from one or more of neutralizing agents, emulsifiers, oils, essences, and deionized water.

8. The mild, soft and preservative-free soap-based cleansing cream of claim 7 wherein the neutralizing agent is potassium hydroxide;

the oil is one or more of squalane, olive oil, white beeswax and shea butter.

9. A method of making a mild, soft, preservative-free soap-based cleansing cream as claimed in any one of claims 1 to 8, comprising the steps of:

step five, cooling to 45 ℃, adding essence, and uniformly stirring;

and step six, cooling to 38-40 ℃, and discharging.

10. The method for preparing a mild, soft and preservative-free soap-based cleansing cream according to claim 9, wherein in the third step, phase B is slowly pumped into an emulsifying pot during saponification, and stirring is performed simultaneously, so that soap lumps and bubbles are prevented from being generated, and the stability of the system is prevented from being affected.