CN116035933A

CN116035933A - A kind of personal cleansing care composition and its preparation method and application

Info

Publication number: CN116035933A
Application number: CN202310060972.9A
Authority: CN
Inventors: 黄勇前; 徐由江; 朱红军
Original assignee: Zhangjiagang Great Chemicals Co ltd
Current assignee: Zhangjiagang Great Chemicals Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-05-02
Anticipated expiration: 2043-01-18
Also published as: CN116035933B

Abstract

The invention provides a personal cleaning care composition, a preparation method and application thereof, and relates to the technical field of cleaning compositions. The composition comprises: a) 5-30wt% of a surfactant; b) 20-60wt% of sodium chloride; c) 0.1-30wt% benefit agent; and D) 0.05 to 5 wt.% of an acid-base modifier. The surfactant comprises a mixture of alkanoyl taurates and methylalkanoyl taurates, amphoteric surfactants and other surfactants except the alkanoyl taurates and the methylalkanoyl taurates, and the surfactant system with high salt content is formed by mixing and matching the methylalkanoyl taurates and the alkyl taurates, so that the surfactant system can show good foaming performance under the acidic condition close to the pH value of a human body, and can not cause the drying problem caused by excessive degreasing under the alkaline condition of skin.

Description

Personal cleaning care composition and preparation method and application thereof

Technical Field

The invention relates to the technical field of cleaning compositions, in particular to a personal cleaning care composition, and a preparation method and application thereof.

Background

Along with the improvement of living standard, people's awareness of health and environmental protection is continuously enhanced, and "green" and "no addition" become invariable main melodies. In personal wash care products, however, it is often necessary to add preservatives to preserve the shelf life of the product. Furthermore, if the shampoo is expected to achieve the effects of removing dandruff and relieving itching, sterilizing and bacteriostat are required to be added, and the addition of the additive tends to further increase the irritation of the product. Mineral salts of natural origin, such as sodium chloride, are well known and healthy natural bacteriostats. Thus, a number of salt-added cleansing products are commercially available, such as "sea salt scalp cleansing cream", "bath salt scrub cream", and the like.

However, adding a large amount of salt or electrolyte into the personal care product often causes that the surfactant is difficult to form large micelles, so that the polymer thickener is difficult to dissolve and disperse, the prepared personal care product has the problems of high hardness, difficult dispersion, uneven mixing, layering and the like, and the obtained product can cause the problems of dry hair, knotting, dry skin and the like after being used.

Taurine salt surfactants are one of the few surfactants with relatively good salt tolerance, but the common taurine surfactants in the market are in fact methylalkanoyl taurates, while alkanoyl taurates are rarely found, so that methylalkanoyl taurates are often referred to in the market as alkanoyl taurates, and although both surfactants contain taurine structural groups, both are very different in nature, both are quite different surfactants, both raw materials and products being synthesized. Although the methylalkyl acyl taurate surfactant has good compatibility with salt, the methylalkyl acyl taurate is difficult to form larger micelle, so the thickening property of the system is still poor, and a qualified and stable product is difficult to form.

As disclosed in chinese patent application 201680091918.9, a bar soap composition is made from ingredients comprising: at least one cleaning agent selected from soaps and primary surfactants; and at least one taurate surfactant selected from the group consisting of salts of fatty acid amides of taurine, salts of fatty acid amides of N-methyl taurine, and combinations thereof. The taurate surfactant is different from the first surfactant. The composition is in the form of a solid bar. Other personal care and home care products comprising a taurate surfactant are also disclosed, further defined in this application wherein the taurate surfactant is sodium methyl oleoyl taurate, and further, studies have been made in this application primarily with respect to compositions that alleviate skin irritation, skin inflammation and/or improve the cell repair function of the skin, and do not relate to the stability of the composition and the combability of the product.

The inventor of the application unexpectedly found in the research process that when the methyl alkanoyl taurate and the alkyl taurate are mixed and matched for use, the product can show excellent compatibility with high-content sodium chloride, can be made stable and is easy to use; and the surfactant system with high salt content formed by mixing and matching the methyl alkanoyl taurate and the alkyl taurate can show good foaming performance under the acidic condition close to the pH value (pH=5) of a human body, and can not cause the drying problem caused by excessive degreasing under the alkaline condition of the skin.

Disclosure of Invention

Based on this, the present application aims to provide a personal cleansing care composition which is high in salt content, good in foaming property, and capable of ensuring skin moisturization feeling and hair manageability.

In order to achieve the above purpose, the present invention is realized by the following technical scheme:

in one aspect, the present application provides a personal cleansing care composition comprising:

a) 5-30wt% of a surfactant;

b) 20-60wt% of sodium chloride;

c) 0.1-30wt% benefit agent;

and D) 0.05 to 5 wt.% of an acid-base modifier.

The surfactant includes a mixture of alkanoyl taurates and methylalkanoyl taurates, amphoteric surfactants and surfactants other than alkanoyl taurates and methylalkanoyl taurates.

Wherein:

the structural formula of the acyl taurate is as follows:

wherein R is a C7-C21 saturated or unsaturated hydrocarbon group comprising a branched or unbranched chain; m is an alkali metal ion, an alkaline earth metal ion or organic ammonia;

preferably, the acyl taurate is selected from one or more of sodium cocoyl taurate, sodium lauroyl taurate, sodium myristoyl taurate, potassium cocoyl taurate and potassium lauroyl taurate.

The structural formula of the methylalkanoyl taurate is as follows:

preferably, the methyl alkanoyl taurate is selected from one or more of sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, potassium methyl cocoyl taurate and sodium methyl myristoyl taurate.

The amphoteric surfactant is selected from one or more of coco betaine, laurylsulfobetaine, cocamidopropyl hydroxysulfobetaine, lauryl amine oxide, sodium lauroyl amphoacetate and disodium cocoyl amphodiacetate;

the other surfactant is selected from sodium C14-16 alpha olefin sulfonate or/and disodium lauryl sulfosuccinate.

The mass ratio of the mixture of the alkanoyl taurate and the methylalkanoyl taurate, the amphoteric surfactant and the other surfactants is 10-90wt%:10-50wt%:0-50wt%;

preferably, the mass ratio of the mixture of the alkanoyl taurate and the methylalkanoyl taurate, the amphoteric surfactant and the other surfactants is 50-90%:10-50wt%:0-10wt%.

As some preferred embodiments, the mass ratio of alkanoyl taurates to methylalkanoyl taurates is from 9:1 to 1:9;

preferably, the mass ratio of the alkanoyl taurates to the methylalkanoyl taurates is 7:3-1:9.

The sodium chloride is one of edible salt, sea salt, rock salt or lake salt.

The beneficial agent is one or more selected from glycerol, polydimethylsiloxane and polyquaternium-7;

the acid-base regulator is one or more selected from citric acid, lactic acid and hydrochloric acid.

In another aspect, the present application provides a method of preparing the personal care composition described above, comprising the steps of:

(1) Adding alkanoyl taurates, methylalkanoyl taurates, amphoteric surfactants, other surfactants, water and benefit agents in the formula amount into a container to obtain a mixture A;

(2) Heating the mixture A in the step (1) to 50 ℃, stirring and dissolving, cooling to below 50 ℃, adding sodium chloride, stirring and dissolving, then continuously cooling, and controlling the cooling speed to be 5-10 ℃ per hour to obtain a mixture B;

(3) And (3) cooling the mixture in the step (2) to 40 ℃, adding the rest components, and stirring and mixing uniformly to obtain the personal cleaning care composition.

In yet another aspect, the present application also provides the use of the personal care composition described above for the preparation of a personal care cleaning product.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The composition provided by the application can be thickened effectively, and the paste is easy to spread, so that the stability of a system can be ensured, the production is easy, and the use by consumers is facilitated;

(2) The composition provided by the application can be adjusted to be suitable for weak acidic conditions of human skin health, and good foam is ensured;

(3) The composition provided by the application can effectively control excessive degreasing of skin or hair caused by other systems, so that the moist feeling of the skin after cleaning or the easy combing property of the hair can be maintained.

Detailed Description

The invention is further illustrated below with reference to examples, which are not intended to limit the invention in any way.

1. The reagents used in the examples were purchased in the form and model

2. Detection method used in the embodiment of the invention

Examples 1-5 a personal care composition and method of making same-effect of alkanoyl taurates and ratio of methylalkanoyl taurates:

the preparation method comprises the following steps:

(1) Adding alkanoyl taurates, methylalkanoyl taurates, amphoteric surfactants, other surfactants and water in the formula amount into a container to obtain a mixture A;

(3) Cooling the mixture obtained in the step (2) to 40 ℃, adding the polyquaternium-7, stirring and mixing uniformly, adding citric acid, and obtaining the personal cleaning care composition with the pH value of 5.

And (3) performance detection:

the compositions prepared in examples 1-5 above were designed into a scrub and tested for viscosity, dispersibility, and stability, with specific test results shown in table 1 below.

TABLE 1

	Example 1	Example 2	Example 3	Example 4	Example 5
						Viscosity at 25℃mPas	93000	69500	54500	51000	29000
Paste spreadability at 25 DEG C	○	○	○	○	○
						Paste spreadability at 0 DEG C	×	○	○	○	○
Investigation at 50℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization
						Investigation at 0℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization

Conclusion:

from the test results shown in Table 1, when the total amount of the surfactant is 7.75%, the ratio of alkanoyl taurates to methyl alkanoyl taurates is 61.29%, the amphoteric surfactant is 38.71%, the beneficial agent is 0.1%, and the salt is 60%, the product with proper viscosity, good paste spreadability and high and low temperature stability can be obtained by the ratio of sodium cocoyl taurate to sodium methyl cocoyl taurate being 7:3-1:9. When the ratio of sodium cocoyl taurate to sodium methyl cocoyl taurate is 9:1, the low-temperature paste is difficult to spread.

Examples 6-10 a personal care composition and method of making same-effect of alkanoyl taurates and ratio of methylalkanoyl taurates:

the preparation method comprises the following steps:

(1) Adding alkanoyl taurates, methylalkanoyl taurates, amphoteric surfactants, other surfactants, water and glycerin in the formula amount into a container to obtain a mixture A;

(3) Cooling the mixture obtained in the step (2) to 40 ℃, adding the polyquaternium-7 and the polydimethylsiloxane, stirring and mixing uniformly, adding hydrochloric acid, and obtaining the personal cleaning care composition with the pH value of 5.

And (3) performance detection:

the compositions prepared in examples 6-10 above were designed into a scrub and tested for viscosity, dispersibility, and stability, with specific test results shown in Table 2 below.

TABLE 2

	Example 6	Example 7	Example 8	Example 9	Example 10
						Viscosity at 25℃mPas	100000	79500	70500	51500	43500
Paste spreadability at 25 DEG C	○	○	○	○	○
						Paste spreadability at 0 DEG C	○	○	○	○	○
Investigation at 50℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization
						Investigation at 0℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization

Conclusion:

from the test results in Table 2, it is found that when the total amount of the surfactant is 23.75%, the ratio of alkanoyl taurates to methyl alkanoyl taurates is 80%, the amphoteric surfactant ratio is 12.63%, the other surfactants are 7.37%, the beneficial agent is 7%, and the salt is 20%, the product with proper viscosity, good paste spreadability and high and low temperature stability can be obtained by the ratio of sodium cocoyl taurate to sodium methyl cocoyl taurate being 9:3-1:9.

Examples 11-15A personal cleansing care composition and method of making same

The preparation method comprises the following steps:

(3) Cooling the mixture obtained in the step (2) to 40 ℃, adding the polyquaternium-7, stirring and mixing uniformly, adding citric acid and lactic acid, and adjusting the pH to 5 to obtain the personal cleaning care composition.

And (3) performance detection:

the compositions prepared in examples 11-15 above were designed into a scrub and tested for viscosity, dispersibility, and stability, with specific test results shown in Table 3 below.

TABLE 3 Table 3

	Example 11	Example 12	Example 13	Example 14	Example 15
						Viscosity at 25℃mPas	36500	43500	69500	79000	64500
Paste spreadability at 25 DEG C	○	○	○	○	○
						Paste spreadability at 0 DEG C	○	○	○	○	○
Investigation at 50℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization
						Investigation at 0℃for 1 month	Stabilization	Stabilization	Stabilization	Stabilization	Stabilization

Conclusion:

according to the detection results of the table 3, the components are in the proportion range claimed by the application, the obtained product has proper viscosity, good paste spreadability and stable high and low temperature, and can meet the requirements in industry.

Comparative examples 1-4A personal cleansing care composition and method of making same

The preparation method comprises the following steps:

(3) Cooling the mixture obtained in the step (2) to 40 ℃, adding the polyquaternium-7 and the polydimethylsiloxane, stirring and mixing uniformly, adding citric acid and hydrochloric acid, and adjusting the pH to 5 to obtain the personal cleaning care composition.

And (3) performance detection:

the compositions prepared in comparative examples 1 to 4 were designed into scrub pastes, and the viscosity, dispersibility and stability were measured, and the specific measurement results are shown in Table 4 below.

TABLE 4 Table 4

Conclusion:

from the above results of the test in Table 4, it was found that when only alkanoyl taurates or methylalkanoyl taurates were used, the product could not meet the requirements of viscosity, paste spreadability, and high and low temperature stability at the same time.

Test example 1

According to the proportion of the example 14, the pH of the frosted paste is adjusted to 4.5-7.5 by adjusting the using amount of the citric acid, the condition of the paste and the foam is evaluated, and the specific detection results are shown in the table 5 below.

TABLE 5

From the test data in Table 5, it can be seen that a composition comprising an alkanoyl taurate and methylalkanoyl taurate provides a stable, foam-rich scrub in the weakly acidic to neutral range.

Test example 2

A scrub cream was prepared in the formulation of example 15 and compared to the same amounts of AES system (comparative example 5:70% sodium lauryl ether sulfate 15, sodium chloride 40, isostearamide MIPA 3, 30% cocamidopropyl betaine 6,30% sodium methyl lauroyl taurate 5, dimethicone 2, polyquaternium-67.2, water 28.8) to evaluate system viscosity and dispersion, stability and foam, see Table 6 below

TABLE 6

	Example 15	Comparative example 5
			Viscosity at 25℃and mpa.s	64500	78000
Initial foam	960	880
			Foam after 5 minutes	520	460
50 ℃ investigation for 1 month	Stabilization	Stabilization
			Investigation at 0℃for 1 month	Stabilization	Stabilization

And the evaluation and scoring are carried out on the using feeling and the feeling after the use, and the evaluation method and the standard are as follows: 20 professional assessors were selected for testing, 14 females, 16 males. The hair was washed by the left and right half hair comparison, 3 times a week, and after one week of washing, the effect was evaluated, the evaluation criteria are shown in Table 7, and the evaluation results are shown in Table 8.

TABLE 7

TABLE 8

From the practical test and evaluation, the shampoo adopting the alkanoyl taurate and the methylalkanoyl taurate is equivalent to the sulfate shampoo in the aspects of foam quantity, foamability and the like, but the foam is easier to wash. The comb has better performance on wet hair and dry hair. Meanwhile, due to the influence of the structural characteristics, the scalp and hair after washing are more moist, milder and the dandruff and itching problem is lighter.

Claims

1. A personal cleaning care composition, characterized in that: it includes:

A) 5-30 wt % of a surfactant;

B) 20-60 wt % sodium chloride;

C) 0.1-30 wt % of a beneficial agent;

and D) 0.05-5 wt% of an acid-base regulator.

2. The personal cleaning care composition according to claim 1, characterized in that the surfactant comprises two or three of a mixture of alkanoyl taurates and methyl alkanoyl taurates, an amphoteric surfactant and other surfactants except alkanoyl taurates and methyl alkanoyl taurates.

3. The personal cleaning care composition according to claim 2, characterized in that the mass ratio of the mixture of alkanoyl taurate and methyl alkanoyl taurate, the amphoteric surfactant and other surfactants is 10-90wt%: 10-50wt%: 0-50wt%.

4. The personal cleaning and care composition according to claim 2, characterized in that: the structural formula of the acyl taurate is:

In the formula, R is a C7-C21 saturated or unsaturated hydrocarbon group, including branched or unbranched groups; M is an alkali metal ion, an alkaline earth metal ion or an organic amine.

5. The personal cleaning care composition according to claim 4, characterized in that the acyl taurate is one or more selected from the group consisting of sodium cocoyl taurate, sodium lauroyl taurate, sodium myristoyl taurate, potassium cocoyl taurate and potassium lauroyl taurate.

6. The personal cleaning care composition according to claim 2, characterized in that: the structural formula of the methylalkanoyl taurate is:

7. The personal cleaning care composition according to claim 6, characterized in that the methyl alkanoyl taurate is one or more selected from the group consisting of sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, potassium methyl cocoyl taurate and sodium methyl myristoyl taurate.

8. The personal cleaning care composition according to claim 2, characterized in that the amphoteric surfactant is one or more selected from the group consisting of coco betaine, lauryl sultaine, cocamidopropyl hydroxysultaine, lauramine oxide, sodium lauroamphoacetate and disodium cocoamphodiacetate.

9. The personal cleaning care composition according to claim 2, characterized in that: the other surfactant is selected from one or more of sodium C14-16 alpha olefin sulfonate, disodium lauryl sulfosuccinate, sodium lauroyl sarcosinate, sodium cocoyl aminopropionate, sodium cocoyl isethionate and sodium lauroyl methyl isethionate.

10. The personal cleaning and care composition according to claim 2, characterized in that the mass ratio of the alkanoyl taurate to the methyl alkanoyl taurate is 9:1-1:9.

11. The personal cleaning and care composition according to claim 2, characterized in that the mass ratio of the alkanoyl taurate to the methyl alkanoyl taurate is 7:3-1:9.

12. The personal cleaning and care composition according to claim 1, characterized in that the pH value of the personal cleaning and care composition is 4-6.

13. The method for preparing the personal cleaning and care composition according to any one of claims 1 to 12, characterized in that it comprises the following steps:

(1) adding the formulated amounts of alkanoyl taurate, methyl alkanoyl taurate, amphoteric surfactant, other surfactants, water and beneficial agent into a container to obtain a mixture A;

(2) heating the mixture A in step (1) to 50° C. and stirring to dissolve, cooling to below 50° C., adding sodium chloride, stirring to dissolve, and then continuing to cool, and controlling the cooling rate to 5-10° C. per hour, to obtain a mixture B;

(3) After cooling the mixture in step (2) to 40° C., adding the remaining components, stirring and mixing evenly, to obtain a personal cleaning care composition.

14. Use of the personal cleaning and care composition according to any one of claims 1 to 12 in the preparation of personal care cleaning products.