KR20200142809A - Sulfate-free cleaning composition - Google Patents

Abstract

The present invention relates to a hypoallergenic cleaning agent composition having excellent bubbling capability and content stability depending on temperature. The present invention provides a cleaning agent composition which includes: either of 7-40 wt% of a sulfosuccinate-based anionic surfactant and 3-15 wt% of a fatty acyl isethionate-based anionic surfactant; 5-35 wt% of a betaine-based amphoteric surfactant; and the balance amount of water, based on the total weight of the composition, and is free from a sulfate-based surfactant.

Description

Sulfate-free cleaning composition

The present invention relates to a hypoallergenic detergent composition having excellent foaming power and stability of contents by temperature, particularly to a sulfate-free human detergent composition.

In general, major products that clean the human body, for example, shampoo, body cleanser, soap, hand wash, etc., are using various types of surfactants in combination to realize this because cleaning ability is the most important effect.

However, these surfactants, in particular, sulfate-based surfactants such as alkyl sulfate and alkyl ethersulfate, are used in high content because of their excellent cleaning power, and this causes great irritation to the skin and eyes.

For this reason, attempts have been made to make detergents using only a small amount of anionic surfactants or to make detergents using only nonionic surfactants with relatively little irritation, but a small amount of sulfate-based anionic surfactants have been used.

Detergents have a disadvantage in that their detergency is greatly degraded, and detergents using only nonionic surfactants have a very low foaming power, so that the performance of a detergent for a human body is very low.

Therefore, there is a need to develop a detergent having less skin irritation and excellent foaming power while maintaining cleansing power.

However, the liquid detergent composition is a composition containing an alkylethoxylated sulfate-based anionic surfactant, which is known to have relatively high irritation, and has a remarkably less irritating effect.

Prior art literature

Republic of Korea Patent Publication No. 10-2013-0088836

The object of the present invention is a detergent with low irritation and excellent stability at slightly acidic pH Is to provide a composition

In addition, the problem to be solved by the present invention is to provide a weakly acidic, hypoallergenic sulfate-free skin cleanser composition having excellent foaming power and stability by temperature.

The present invention is at least any one of 7 to 40% by weight of a sulfosuccinate-based anionic surfactant and 3 to 15% by weight of a fatty acyl isethionate-based anionic surfactant based on the total weight of the composition; Betaine-based amphoteric surfactant 5 to 35% by weight; And it provides a sulfate-free detergent composition that includes; and does not contain sulfate.

Since the detergent composition for the human body of the present invention does not use a sulfate-based surfactant, which is a cause of skin irritation, irritation to the skin and eyes is remarkably low, and the foaming power and stability of the contents by temperature are excellent.

In addition, the detergent composition according to the present invention has excellent stability in that the properties of the contents can be uniformly maintained even at high and low temperatures without using a polymer thickener.

Hereinafter, the detergent composition having excellent foaming power and stability of the present invention will be described in more detail.

The detergent composition according to an embodiment of the present invention comprises at least one of 7 to 40% by weight of a sulfosuccinate-based anionic surfactant and 3 to 15% by weight of a fatty acyl isethionate-based anionic surfactant based on the total weight of the composition; Betaine-based amphoteric surfactant 5 to 35% by weight; And it provides a sulfate-free detergent composition containing the remaining amount of water, and no sulfate-based surfactant.

It is preferable that the detergent composition according to an embodiment of the present invention further includes 1 to 5% by weight of a nonionic surfactant.

According to an embodiment of the present invention, the total content of the surfactant in the composition is preferably 3 to 65% by weight based on the total weight of the composition.

According to an embodiment of the present invention, the weight ratio of the sulfosuccinate-based anionic surfactant: betaine-based amphoteric surfactant: nonionic surfactant is preferably 10 to 30: 5 to 15: 1 to 3. When the composition of the present invention includes a combination of surfactants having a weight ratio as described above, skin or eye (eye) irritation is low, foaming power is excellent, and formulation stability by temperature is remarkably excellent.

According to an embodiment of the present invention, the weight ratio of the fatty acyl isethionate-based anionic surfactant: betaine-based amphoteric surfactant: nonionic surfactant is preferably 3 to 9: 5 to 15: 1 to 3. . In the case of including a combination of surfactants having the above weight ratio of the present invention, skin or eye (eye) irritation is low, foaming power is excellent, and formulation stability by temperature is remarkably excellent.

The composition does not contain a sulfate-based surfactant.

In the present invention, the sulfosuccinate-based anionic surfactant may be included in an amount of 7 to 40% by weight based on the total weight. When the content of the sulfosuccinate-based anionic surfactant is less than 7% by weight of the total weight of the composition, the foaming power and cleaning power may be reduced, and when it exceeds 40% by weight, the content is precipitated at low temperature and stability is reduced. There is a tendency.

In the present invention, the sulfosuccinate-based anionic surfactant may be disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate, or a mixture thereof, preferably disodium laureth sulfosuccinate. It could be Nate. The present inventors experimentally confirmed the effect according to the present invention using a composition to which disodium laureth sulfosuccinate was added.

In the present invention, the fatty acyl isethionate-based anionic surfactant may be included in an amount of 3 to 15% by weight based on the total weight. If the content of the fatty acyl isethionate-based anionic surfactant is less than 3% by weight of the total weight of the composition, foaming power and detergency may decrease, and if it exceeds 15% by weight, the content is precipitated at low temperature and stability is reduced. There is a tendency.

According to an embodiment of the present invention, the total content of the surfactant included in the composition is preferably 65% by weight or less based on the total weight of the total composition. When it exceeds 65% by weight, irritation increases and viscosity increases, and the feeling of use may decrease.

In the present invention, the fatty acyl isethionate-based anionic surfactant may be sodium cocoyl isethionate, ammonium cocoyl isethionate, or a mixture thereof, preferably sodium cocoyl isethionate. have. The present inventors experimentally confirmed the effect according to the present invention using a composition to which sodium cocoyl isethionate was added.

The betaine-based amphoteric surfactant according to the present invention is any one or a mixture of two or more selected from the group consisting of a betaine-based surfactant having COO- and a sulfobetaine (sultein)-type surfactant having -SO3 at the anionic end. It may be, preferably laurylhydroxysulfate, cocamidopropylbetaine, or a mixture thereof, and the present inventors experimentally confirmed the effect according to the present invention using a composition to which cocamidopropylbetaine was added. .

In the present invention, nonionic surfactants may help increase and solubilize power, and are not limited thereto, but from alkanolamide-type surfactants such as Cocamide M.A. It may be any one selected or a mixture of two or more, preferably cocamide MI, cocamide methyl MI.

In the human body cleansing composition, as a method of testing skin irritation when it gets into the eyes when using sensitive skin and infants, the lung patch test is the most widely used. This method may be the most reliable method of skin safety since it is possible to see a reaction in the actual skin by directly applying a sample to the human body, but it is difficult to evaluate a large number of samples, and there is a limit to the evaluation of eye irritation. On the other hand, the in-vitro method may have limitations in reflecting irritation in human skin and eyes, and in order to overcome the practical limitations, HET-CAM test, known as the ocular mucosa replacement test, was conducted to produce materials and materials with significantly low irritation. The composition can be confirmed.

The human body cleaning agent composition according to the present invention has the characteristics that other substances do not precipitate at high temperatures as well as at low temperatures, and exhibits a constant property without phase separation. In the present invention, the high temperature may mean 50°C, and the low temperature may mean 5°C.

In particular, it was confirmed that the skin cleanser composition according to the present invention can maintain the formulation without precipitation and phase separation even when stored for 4 weeks at low and high temperatures in a specific embodiment of the present invention.

In addition, when the viscosity of a general human detergent composition is too low, when it is diluted, it has strong flowability when used, resulting in inconvenience in use and economy due to a large amount of loss, and when the viscosity is too high, the feeling of use is not good and foam does not occur quickly, resulting in inconvenience. . However, since the human body cleaning agent composition according to the present invention has an excellent viscosity as a human body cleaning agent composition, it has improved ease of use.

The viscosity of the human body detergent composition according to the present invention is measured by measuring the viscosity of a sample using a spindle 4 and a Brookfield viscometer for 30 seconds at 10 rpm at 25°C.

The skin cleanser composition according to the present invention may have a viscosity of 3,000 cPs or more, preferably 4,000 to 10,000 cPs, more preferably 5,000 to 7,000 cPs.

The inventors of the present invention have experimentally confirmed that the skin cleanser composition has convenience in use when it is prepared in the above viscosity range, and has confirmed that it can be used as a human cleanser composition having excellent usability.

The human body detergent composition of the present invention is a detergent composition, which can be commonly usefully used in detergent compositions in order to maintain basic physical properties and quality, amphoteric surfactants, moisturizers, pigments, chelating agents, antioxidants, preservatives, pH adjusters, fragrances And it may further include any one or more selected from the group consisting of dyes and the like.

In addition, the human body cleaning composition of the present invention can be applied to various formulations such as liquid, emulsion, cream or gel, and as a form of use, scalp cleaner, face wash, body wash, hand wash, shampoo, foam cleanser, liquid It may be used as a detergent or bath agent, but is not limited thereto.

A preferred embodiment of a hypoallergenic human body cleaning composition having excellent foaming power and stability according to the present invention will be described in detail.

Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown through the embodiments described in the present specification is only the most preferred embodiment of the present invention, and does not represent all of the technical idea of the present invention, and thus various alternatives that can be used at the time of application It should be understood that there may be equivalents and variations.

<Preparation Examples and Preparation of Examples>

Using the raw materials shown in Table 1 below, Preparation Examples 1 to 9 were prepared, respectively, and an eye mucosa irritation test (HET-CAM test) was performed.

ingredient Manufacturing example One 2 3 4 5 6 7 8 9 Sodium laureth sulfate 7 - - - - - - - - Disodium laureth sulfosuccinate - 7 - - - - - - - Disodium lauryl sulfosuccinate - - 7 - - - - - - Sodium Cocoyl Isethionate - - - 7 - - - - - Ammonium cocoyl isethionate - - - - 7 - - - - Lauryl Hydroxyloxytain - - - - - 7 - - - Cocamidopropylbetaine - - - - - - 7 - - Cocamide MethylMA - - - - - - - 7 - Cocamide M.E. - - - - - - - - 7 Purified water To100 To
100 To
100 To
100 To
100 To
100 To
100 To
100 To
100

A human body detergent composition was prepared according to each composition (unit: weight %) of Tables 2 to 3 below. For the compositions of Examples and Comparative Examples described in Tables 2 and 3 below, the irritation was evaluated through the HET-CAM test, and the foaming power was examined for the amount of air bubbles in use through quality evaluation on a 5-point scale. Stability evaluation was stored at a low temperature of 5°C and a high temperature of 50°C for 1 month to observe precipitation and phase separation. The viscosity of the sample was measured at 25° C. at 10 rpm for 30 seconds using a Spindle 4 and a Brookfield viscometer.

ingredient Example One 2 3 4 5 6 7 8 9 10 Disodium laureth sulfosuccinate 10 30 - - 10 10 30 40 10 30 Sodium Cocoyl Isethionate - - 3 9 3 - 9 10 9 9 Cocamidopropylbetaine 5 15 5 15 5 15 15 15 15 15 Cocamide MethylMA 0.5 1.5 0.5 1.5 0.5 1.5 1.5 1.5 1.5 - Cocamide M.E. 0.5 1.5 0.5 1.5 0.5 1.5 1.5 1.5 1.5 - Preservative 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 incense One One One One One One One One One One Citric Acid 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Purified water To100 To
100 To
100 To
100 To
100 To
100 To
100 To
100 To
100 To
100
Total surfactant content (%) 16 48 9 27 19 28 57 68 37 54

ingredient Comparative example One 2 3 4 5 6 7 8 9 Sodium laureth sulfate 10 30 30 - - - - - - Disodium laureth sulfosuccinate - - - 5 - 50 - 50 - Sodium Cocoyl Isethionate - - - 1.5 - 50 - 50 Cocamidopropylbetaine 5 15 5 15 15 15 15 - - Cocamide MethylMA 0.5 1.5 0.5 1.5 1.5 0.5 1.5 1.5 1.5 Cocamide M.E. 0.5 1.5 0.5 1.5 1.5 0.5 1.5 1.5 1.5 Coco-Clucoside - - 5 - - - - - Preservative 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 incense One One One One One One One One One Citric Acid 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Purified water To100 To
100 To
100 To
100 To
100 To
100 To
100 To
100 To
100 Total surfactant content (%) 16 48 41 23 19.5 66 63 53 53

Experimental example

(1) Eye mucosa irritation test (HET-CAM)

The raw material was at a concentration of 5%, and the body cleaner composition was carried out by measuring the cumulative reaction time score with the stock solution, and it was divided into four levels as shown in Table 4 below, and the results are shown in Table 5 below.

Cumulative Score (CS) no response Weak irritation Moderate irritation Strong stimulation = 0.9 (less than) O 1.0 <CS <4.9 O 5.0 <CS <8.9 O 9.0 <CS <21 O

(2) Bubble power evaluation

Foaming power was investigated for the amount of air bubbles when used for the compositions of Examples and Comparative Examples through quality evaluation on a 5-point scale, and the results are shown in Tables 5-7 below.

(3) Stability evaluation

Foaming power was investigated for the amount of air bubbles when used for the compositions of Examples and Comparative Examples through quality evaluation on a 5-point scale, and the results are shown in Tables 5-7 below.

(4) viscosity

According to the respective compositions (unit: wt%) in Tables 2 and 3, the viscosity results were obtained at normal (room temperature) in a plastic container. The viscosity of the sample was measured using a Spindle 4 and Brookfield viscometer for 30 seconds at 10 rpm at 25° C., and the results are shown in Tables 6 and 7 and expressed as follows.

3,000 to 10,000 cPs: suitable for use

>10,000 cPs: high viscosity for use

Less than 3,000 cPs: Low viscosity to use

evaluation
Item Manufacturing example One 2 3 4 5 6 7 8 9 Eye mucosa irritation test 10.1 0.8 2.8 1.4 2.9 2.2 4.0 0.5 0.9

evaluation
Item Example One 2 3 4 5 6 7 8 9 10 Eye mucosa irritation test 0.9 2.7 0.7 1.8 1.5 2.1 3.4 2.9 1.9 3.4 Bubble power evaluation 4 5 3 3 4 4 5 5 4 5 stability
evaluation
Low temperature/
High temperature

Good/good Viscosity 3,200 7,000 3,060 5,540 3,480 5,120 8,500 4,500 9,240 3,100

evaluation
Item Comparative example One 2 3 4 5 6 7 8 Eye mucosa irritation test 11.1 20.2 18.9 1.4 3.6 4.4 6.1 2.7 Bubble power evaluation 3 5 4 3 2 5 5 5 Stability evaluation (low temperature/high temperature) Good/
Good Good/
Good Good/
Good Bad/
Bad Bad/
Bad Bad/
Bad Bad/
Bad Bad/
Bad Viscosity 3,820 19,600 9,240 2,120 1,480 15,120 18,100 3,160

As shown in Table 5, the sulfate-based anionic surfactant was evaluated very high as a strong irritation level in the eye mucosa irritation test.

As shown in Tables 6 and 7, compared to Comparative Examples 1 to 9, the human detergent composition (Examples 1 to 10) of the present invention was found to have significantly lower irritation as a result of the eye mucosa irritation test. It is also excellent, and the appropriate viscosity level was confirmed when used. In addition, it was confirmed that the properties of the contents were well maintained without defects even at low temperatures (5° C.) and high temperatures (50° C.), and formulation stability was excellent. However, Example 10, which does not contain a nonionic surfactant, exhibits excellent effects compared to the conventional compositions (Comparative Examples 1 to 9), but is relatively viscous compared to Examples 1 to 9 containing a nonionic surfactant. The characteristics are low. Since Examples 1 to 9 do not contain a sulfate-based surfactant, it has been found that the cleaning agent composition according to the present invention exhibits excellent effects while maintaining a very high foaming power and stability (high temperature/low temperature) while reducing irritation. I can.

Claims (6)

At least one of 7 to 40% by weight of a sulfosuccinate-based anionic surfactant and 3 to 15% by weight of a fatty acyl isethionate-based anionic surfactant based on the total weight of the composition;
Betaine-based amphoteric surfactant 5 to 35% by weight; And
Including; remaining amount of water;
Sulfate-free detergent composition, characterized in that it does not contain a sulfate-based surfactant. The method of claim 1,
The composition is a sulfate-free detergent composition, characterized in that it further comprises 1 to 5% by weight of a nonionic surfactant. The method of claim 1,
Sulfate-free detergent composition, characterized in that the total content of the surfactant in the composition is 3 to 65% by weight based on the total weight of the composition. The method of claim 2,
The sulfate-free detergent composition, characterized in that the weight ratio of the sulfosuccinate-based anionic surfactant: betaine-based amphoteric surfactant: nonionic surfactant is 10 to 30: 5 to 15: 1 to 3. The method of claim 2,
The weight ratio of the fatty acyl isethionate-based anionic surfactant: betaine-based amphoteric surfactant: nonionic surfactant is 3 to 9: 5 to 15: 1 to 3, characterized in that the sulfate-free detergent composition. The method of claim 1,
Sulfate-free detergent composition, characterized in that the detergent composition has a viscosity of 4,000 to 10,000 cPs.