CN109628242B - Mild and stable soap-based facial cleanser and preparation method thereof - Google Patents

Abstract

The invention belongs to the field of daily chemicals, and particularly relates to a mild and stable soap-based facial cleanser and a preparation method thereof. The soap-based facial cleanser is prepared from fatty acid, polyhydric alcohol, potassium hydroxide, an emulsifier, polyquaternium-7, a chelating agent, a purslane extract, essence, a preservative and deionized water, wherein the contents of the components are as follows: 28-32% of fatty acid, 20-30% of polyalcohol, 5.5-6.5% of potassium hydroxide, 2-4% of thickening stabilizer, 2-10% of amphoteric surfactant, 71-3% of polyquaternary ammonium salt, 0.05-0.1% of chelating agent, 1-3% of purslane extract, 0.2-0.3% of essence and 0.1-0.5% of preservative. Compared with the prior art, the invention has the characteristics of rich, fine and stable foam, deep cleaning, mildness, no tightness and good high-temperature stability.

Description

Mild and stable soap-based facial cleanser and preparation method thereof

Technical Field

The invention relates to a facial cleanser, in particular to a mild and stable soap-based facial cleanser and a preparation method thereof.

Background

The soap base type facial cleanser is a facial cleanser system which takes a soap base as a main excipient and a foaming agent, is one of very popular face washing products in the daily chemical line in recent years, has good foaming power, rich and fine foam, clean and thorough dirt removal, easy washing after use and clean and refreshing skin, and has noble and beautiful appearance of pearlescent dental cream to obtain great love of consumers and manufacturers.

Although soap-based facial cleansing cream has appeared for many years, the soap-based facial cleansing cream has complex manufacturing process and formula, so that domestic cosmetic enterprises do not deeply research the products and grasp the products thoroughly, and according to the analysis of the facial cleansing cream products produced by domestic enterprises which can be seen in the world at present, most of the facial cleansing cream products produced by the enterprises can not reach the performance indexes of the similar products abroad, and some defects exist, such as: firstly, the skin is dry and tense after the skin-care product is used; secondly, the stability at high and low temperatures is poor, the high temperature is easy to separate out in a layering way, and the low temperature is easy to harden; and the production process has poor reproducibility and is easy to have quality problems in the production process.

Therefore, it is important to develop a mild and stable soap-based cleansing cream.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a stable and mild soap-based cleansing cream which is stable at high temperature and is not tight after drying; the invention also provides a preparation method of the mild and stable soap-based facial cleanser, and the method has the advantages of easily controlled production process and reproducibility.

In order to achieve the purpose, the invention adopts the following technical scheme:

a mild and stable soap-based facial cleanser is prepared from the following components in percentage by weight: 28-32% of fatty acid, 20-30% of polyalcohol, 5.5-6.5% of potassium hydroxide, 2-5% of thickening stabilizer, 2-10% of amphoteric surfactant, 71-3% of polyquaternary ammonium salt, 0.05-0.1% of chelating agent, 1-3% of purslane extract, 0.1-0.3% of essence, 0.1-0.5% of preservative and the balance of water; the thickening stabilizer is modified starch.

Further, the fatty acid is at least one of lauric acid, myristic acid, palmitic acid and stearic acid; preferably, the fatty acid is a combination of lauric acid, myristic acid, palmitic acid, stearic acid.

Further, the polyalcohol is at least one of glycerol, propylene glycol, 1, 3-butanediol, PEG-400, sorbitol and glyceryl polyether-26; preferably, the polyhydric alcohol is glycerol, 1, 3-butanediol, PEG-400.

Further, the modified starch is hydrophilic chemically modified starch.

Further, the hydrophilic chemically modified starch is at least one of modified potato starch, modified tapioca starch, modified corn starch, hydroxypropyl starch and hydroxypropyl starch phosphate; preferably, the hydrophilic chemically modified starch is hydroxypropyl starch phosphate.

Further, the amphoteric surfactant is at least one of betaine and imidazoline surfactants. The betaine is cocamidopropyl betaine, lauramidopropyl betaine, cocamidopropyl hydroxysulfobetaine, and laurylhydroxysulfobetaine. The imidazoline is sodium cocoamphoacetate and sodium lauryl amphoacetate.

Preferably, the amphoteric surfactant is cocamidopropyl hydroxysultaine.

Further, the chelating agent is one of disodium EDTA or tetrasodium EDTA.

Further, the preservative is one or a mixture of two of methyl hydroxybenzoate and propyl hydroxybenzoate.

Preferably, the preservative is a mixture of methyl hydroxybenzoate and propyl hydroxybenzoate, wherein the content of methyl hydroxybenzoate is 0.05% -0.3%, and the content of propyl hydroxybenzoate is 0.05% -0.2%.

The purslane extract is obtained from purslane whole plant by adopting a low-temperature extraction method. The herba Portulacae extract contains alkaloids and flavonoids, can be used as anti-irritation and anti-allergy effective components in cosmetics, and has effects of preventing dryness and increasing skin comfort.

The preparation method of the mild and stable soap-based facial cleanser comprises the following steps:

A. adding a chelating agent and part of polyhydric alcohol into deionized water, then adding potassium hydroxide, and heating to 70-80 ℃ to obtain a water phase;

B. mixing and heating fatty acid, methyl hydroxybenzoate and propyl hydroxybenzoate to 70-80 ℃ to obtain an oil phase, and pumping the oil phase into an emulsifying pot;

C. pumping the heated water phase into an emulsifying pot, rapidly stirring and dispersing, and maintaining the temperature above 80 ℃ for saponification for 30 minutes;

D. c, mixing the stable thickening agent with the rest of the polyol to prepare a premix, adding the premix into an emulsifying pot after the heat preservation in the step C is finished, and stirring to ensure that the stable thickening agent is completely dissolved;

E. cooling to 55-60 ℃, and adding polyquaternium-7 and an amphoteric surfactant;

F. and cooling to 40-45 ℃, adding the essence and the purslane extract, uniformly stirring, and discharging to obtain the stable and mild soap-based facial cleanser.

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

(1) the invention selects proper thickening stabilizer, has synergistic effect with the polyhydric alcohol in a water system, occupies the volume of water, achieves the performance of thickening stability, and can suspend unneutralized free fatty acid even without emulsifier, so that the problems of paste thinning, nozzle water discharge and the like caused by the change of external temperature conditions can be avoided, and the product shows good stability.

(2) According to the invention, through the matching of the amphoteric surfactant and the polyquaternium-7, the amphoteric surfactant is beneficial to the dispersion of the fatty acid soap, the foaming performance of the cleansing cream is further improved, the irritation of the soap is reduced, and the cleansing cream is beneficial to the improvement of the skin feel after washing; due to the cationic property of the polyquaternium-7, the foam is denser and more stable, and the soft and smooth skin feeling is brought, and the tight feeling of the dried skin is reduced, so that the soap-based facial cleanser disclosed by the invention has good skin feeling of being not dry and tight after being mildly washed.

(3) The purslane extract selected by the invention can shield the stimulation of chemical substances, avoid the skin from being dry and not tight, reduce the stimulation of spices to sensitive skin and reduce anaphylactic reaction.

(4) The preparation method of the soap-based facial cleanser provided by the invention has the advantages of simple process, easiness in operation, uniform material dispersion and easiness in production control, improves the production efficiency and reduces the energy consumption.

Detailed Description

The present invention will be further illustrated with reference to specific examples, but the present invention is not limited to these examples.

The formulations of examples 1-4 and comparative examples 1-4 are shown in Table 1.

TABLE 1 formulation tables for examples 1-4 and comparative examples 1-4

The preparation method of the above examples and comparative examples comprises the following steps:

A. adding a chelating agent and part of polyhydric alcohol into deionized water, then adding potassium hydroxide, and heating to 70-80 ℃ to obtain a water phase;

B. mixing and heating fatty acid, methyl hydroxybenzoate and propyl hydroxybenzoate to 70-80 ℃ to obtain an oil phase, and pumping the oil phase into an emulsifying pot;

C. pumping the heated water phase into an emulsifying pot, rapidly stirring and dispersing, and maintaining the temperature above 80 ℃ for saponification for 30 minutes;

D. c, mixing the stable thickening agent with the rest of the polyol to prepare a premix, adding the premix into an emulsifying pot after the heat preservation in the step C is finished, and stirring to ensure that the stable thickening agent is completely dissolved;

E. cooling to 55-60 ℃, and adding polyquaternium-7 and an amphoteric surfactant;

F. and cooling to 40-45 ℃, adding the essence and the purslane extract, uniformly stirring, and discharging to obtain the purslane essence.

The use feeling and stability of the above examples and comparative examples were evaluated.

Wherein the use feeling evaluation method is as follows: 80 testers (equal male and female, age group 15-55 years) were selected, 10 testers were extracted for each example and comparative example respectively, and blind tests were performed on the examples and comparative examples. Each example and comparative example were measured in parallel 3 times. The testers evaluate the product according to the use feeling of the testers, and the product mainly comprises mildness and spreadability. The evaluation result is the average score of all testers, and the higher the average score is, the better the effect is.

The using method comprises the following steps: wetting the hands and face; a0.5 gram sample was placed on one wet hand, spread with the other hand, rubbed with both hands to lather and spread on the face, and gently rubbed the skin of the face for one minute. And finally, cleaning the hands and the face with clear water, and naturally drying the hands and the face.

The stability evaluation method comprises the following steps: the examples and comparative examples were each contained in a 30mL transparent plastic bottle and placed in an incubator at room temperature, -15 ℃ and 48 ℃ for continuous observation for 3 months. The degree of change in morphology at-15 ℃ and 48 ℃ was scored for the examples and comparative examples with reference to room temperature samples. The comprehensive scoring standard is divided into 10 points, wherein 1 point is the worst point, 10 points are the best point, 8 persons are selected for scoring, the evaluation result is the average score of the 8 persons comprehensive scoring, and the higher the average score is, the better the high and low temperature stability is.

The results of the evaluation of feeling of use and the results of the evaluation of stability of the examples and comparative examples are shown in tables 2 and 3, respectively.

TABLE 2 evaluation result table of feeling of use of examples and comparative examples

Numbering	Mildness property	Spreadability	Rich foam feeling	Foam texture	Skin feel by flushing	Dry skin feel
							Example 1	9.2	9.0	9.2	9.4	9.0	9.0
Example 2	9.3	9.4	9.7	9.8	9.5	9.6
							Example 3	9.7	8.5	8.5	8.5	8.8	8.7
Example 4	9.1	9.2	9.1	9.3	9.1	9.0
							Comparative example 1	8.6	8.1	8.0	8.1	7.2	7.2
Comparative example 2	8.3	8.5	8.0	8.5	8.6	7.1
							Comparative example 3	7.7	7.6	7.0	7.7	6.8	6.5
Comparative example 4	7.3	8.2	7.9	8.3	8.0	7.1

TABLE 3 stability evaluation results of examples and comparative examples

As can be seen from tables 1 and 2, the hydroxypropyl starch phosphate selected by the invention can improve the stability of the soap base and the stability of the foam; the product of the embodiment of the invention is mild, has good spreadability, rich foam and good texture.

The above description is only a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and there may be some slight structural changes in the implementation, and if there are various changes or modifications to the present invention without departing from the spirit and scope of the present invention, and within the claims and equivalent technical scope of the present invention, the present invention is also intended to include those changes and modifications.

Claims (4)

1. The mild and stable soap-based facial cleanser is characterized by being prepared from the following components in percentage by weight: 28-32% of fatty acid, 20-30% of polyalcohol, 5.5-6.5% of potassium hydroxide, 2-5% of thickening stabilizer, 2-10% of amphoteric surfactant, 71-3% of polyquaternary ammonium salt, 0.05-0.1% of chelating agent, 1-3% of purslane extract, 0.1-0.3% of essence, 0.1-0.5% of preservative and the balance of water; the thickening stabilizer is hydroxypropyl starch phosphate; the fatty acid is at least one of lauric acid, myristic acid, palmitic acid and stearic acid; the polyalcohol is at least one of glycerol and propylene glycol; the amphoteric surfactant is at least one of betaine and imidazoline surfactant.

2. The mild stable soap-based cleansing cream as claimed in claim 1, wherein said chelating agent is one of disodium EDTA or tetrasodium EDTA.

3. The mild and stable soap-based cleansing cream as claimed in claim 1, wherein said preservative is one or a mixture of two of methylparaben and propylparaben.

4. A method of preparing a mild stable soap-based facial cleanser according to any one of claims 1 to 3, comprising the steps of:

A. adding a chelating agent and part of polyhydric alcohol into deionized water, then adding potassium hydroxide, and heating to 70-80 ℃ to obtain a water phase;

B. mixing and heating fatty acid, preservative methyl hydroxybenzoate and propyl hydroxybenzoate to 70-80 ℃ to obtain an oil phase, and pumping the oil phase into an emulsifying pot;

C. pumping the heated water phase into an emulsifying pot, rapidly stirring and dispersing, and maintaining the temperature above 80 ℃ for saponification for 30 minutes;

D. c, mixing the thickening stabilizer with the rest of the polyol to prepare a premix, adding the premix into an emulsifying pot after the heat preservation in the step C is finished, and stirring to ensure that the thickening stabilizer is completely dissolved;

E. cooling to 55-60 ℃, and adding polyquaternium-7 and an amphoteric surfactant;

F. and cooling to 40-45 ℃, adding the essence and the purslane extract, uniformly stirring, and discharging to obtain the stable and mild soap-based facial cleanser.