KR102664458B1 - Cosmetic composition - Google Patents

Abstract

Contains polyol, fatty acid and emulsifier, the polyol includes butylene glycol and glycerin in a weight ratio of 3:2 to 5:2, and the polyol includes 20% to 40% by weight based on the total amount of the cosmetic composition. The emulsifier provides a cosmetic composition containing sucrose stearate.

Description

Cosmetic composition {COSMETIC COMPOSITION}

This description relates to cosmetic compositions.

The most basic step in facial care is skin cleansing, or face washing. Oil-based contaminants such as excess sebum, cosmetics and makeup products, especially residues from waterproof products, etc., accumulate on the skin and clog pores, causing skin problems, so daily skin cleansing is very important, and the skin cleansing agent used at this time is very important. It is essential that the product, that is, the face wash, has excellent cleansing power and skin protection effect against various skin contaminants.

A variety of facial cleansers are known for this purpose, and among them, products that foam and rinse off are differentiated from makeup cleansing products that do not foam and are used as secondary facial cleansers to finally remove the remaining makeup cleansing product residue and skin waste. It plays a role in providing Among these face wash products, those made by saponifying high fatty acids using an alkaline neutralizer have excellent cleansing power and can provide a refreshing and refreshing feeling. These cleansing products are largely divided into cream type, liquid type, and solid soap depending on their properties. Recently, soap paste type cleansing foam, which contains fatty acids in a tube by neutralizing a certain percentage with a strong base, has become very popular. Soap paste-type cleansing foams currently on the market usually contain PEG surfactant. Recently, information that PEG surfactant is harmful to the skin has been shared among customers, and it has become an ingredient that customers avoid.

There are several types of PEG surfactants prescribed for cleansing foam, and among them, PEG-32 and PEG-100 STEARATE are essential ingredients in forming cleansing foam formulations. PEG-32 forms the initial viscosity of the cleansing foam and plays a role in reducing changes in viscosity over time, and PEG-100 STEARATE contributes to the dispersion of soap components in the formulation, so that in the absence of PEG-100 STEARATE, high temperatures above 45℃ Separation of the formulation occurs.

Therefore, attempts to manufacture a PEG surfactant-free soap paste-type cleansing foam are continuing. However, most cosmetic compositions with a PEG surfactant-free composition have very low viscosity, so the contents can be removed from a general tube container. There are problems such as leakage or poor high temperature stability.

Accordingly, after long research, the present inventors developed a cosmetic composition that does not have low viscosity of cleansing foam even without PEG-32 and has stable dispersibility even without PEG-100 STEARATE.

In one embodiment, despite having a PEG surfactant-free composition, it has excellent viscosity and dispersibility, and can maintain the cleansing power and feeling of use at or above the same level as conventional cleansing foams, giving users a sense of security that there are no harmful ingredients and an excellent product. The purpose is to provide a cosmetic composition for detergent that can provide cleansing power and usability.

According to one embodiment, it includes a polyol, a fatty acid, and an emulsifier, wherein the polyol includes butylene glycol and glycerin in a weight ratio of 3:2 to 5:2, and the polyol is 20% by weight based on the total amount of the cosmetic composition. to 40% by weight, and the emulsifier provides a cosmetic composition containing sucrose stearate.

The polyol may include butylene glycol and glycerin in a weight ratio of 3:2 to 4:2.

The fatty acid may be included in an amount of 25% by weight or more based on the total amount of the cosmetic composition.

The fatty acid may be a mixture of one or more types of saturated fatty acids having 12 to 22 carbon atoms.

The fatty acid may be a mixture of lauric acid with 12 carbon atoms, myristic acid with 14 carbon atoms, palmitic acid with 16 carbon atoms, and stearic acid with 18 carbon atoms.

The sucrose stearate may be included in an amount of 1% to 5% by weight based on the total amount of the cosmetic composition.

The emulsifier may further include glyceryl stearate.

The cosmetic composition may further include a chelating agent and a neutralizing agent.

The cosmetic composition may be composed of polyol, fatty acid, emulsifier, chelating agent, neutralizer, surfactant, fragrance, and water.

The surfactant may not include PEG surfactant.

The cosmetic composition may have a PEG surfactant-free composition.

The cosmetic composition may have a viscosity of 800,000 cps to 1,200,000 cps.

The cosmetic composition may be a cosmetic composition for facial cleanser.

The cosmetic composition according to one embodiment can provide excellent viscosity and dispersibility while preventing a decrease in cleaning power and feeling of use even without a PEG surfactant.

Figure 1 is a photograph of the process of formulating the cosmetic composition according to Comparative Example 1.
Figure 2 is a photograph of a soap paste prepared with the cosmetic composition according to Comparative Example 2.
Figure 3 is a photograph of the cosmetic composition according to Comparative Example 10 after being left at high temperature (45°C) for 4 weeks.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In this specification, when a part of a layer, membrane, region, plate, etc. is said to be “on” another part, this includes not only the case where it is “right on” the other part, but also the case where there is another part in between. Conversely, when a part is said to be “right on top” of another part, it means that there is no other part in between.

Unless otherwise defined herein, “combination” means mixing or copolymerization. Additionally, “copolymerization” refers to block copolymerization to random copolymerization, and “copolymer” refers to block copolymerization to random copolymerization.

Hereinafter, a cosmetic composition according to one embodiment will be described.

A cosmetic composition according to one embodiment includes a polyol, a fatty acid, and an emulsifier, wherein the polyol includes butylene glycol and glycerin in a weight ratio of 3:2 to 5:2, and the polyol includes 20% of the total amount of the cosmetic composition. It is included in weight% to 40% by weight, and the emulsifier may include sucrose stearate.

Generally, in the case of cleansing foam cosmetic compositions, one or more types of PEG surfactants are prescribed to stabilize the formulation. However, recently, as information has been spread to the public that PEG surfactants are harmful to the skin, the tendency to avoid cleansing foam cosmetic compositions containing PEG surfactants is gradually spreading. However, since the formulation stability of the cleansing foam cosmetic composition becomes very poor without the PEG surfactant, it was difficult to manufacture the cleansing foam cosmetic composition without using it, and even if it was manufactured, the cleaning power and feeling of use were greatly reduced. there was.

However, according to one embodiment, the formulation stability is excellent (excellent viscosity and fatty acid (soap) dispersibility) even without using a PEG surfactant, and furthermore, the cleansing power and feeling of use are at least equivalent to those of conventional cleansing foam cosmetic compositions. A visible cosmetic composition can be provided.

Specifically, the cosmetic composition according to one embodiment contains 20% to 40% by weight of polyol containing butylene glycol and glycerin in a weight ratio of 3:2 to 5:2 to replace PEG-32, based on the total amount of the cosmetic composition. By including it in weight percent, it can have sufficient viscosity to be used as a cleansing foam. In other words, it is possible to provide a cosmetic composition with little change in viscosity over time.

Furthermore, the cosmetic composition according to one embodiment uses sucrose stearate as an emulsifier to replace PEG-100 stearate, thereby improving the dispersibility of fatty acids and ensuring formulation stability.

For example, the polyol may include butylene glycol and glycerin in a weight ratio of 3:2 to 4:2. When the butylene glycol and glycerin are included in the above weight ratio range, the properties, viscosity, and constant temperature stability may be the best.

For example, the fatty acid may be included in a high content, for example, 25% by weight or more, based on the total amount of the cosmetic composition. When the fatty acid is included in the above-mentioned high content, it has an excellent effect of replacing the PEG-32 surfactant and can have excellent formulation stability by preventing a decrease in viscosity. For example, the fatty acid may be included in an amount of 25% to 40% by weight, such as 25% to 35% by weight, such as 25% to 30% by weight, based on the total amount of the cosmetic composition.

For example, the fatty acid may be a mixture of one or more types of saturated fatty acids having 12 to 22 carbon atoms. If a saturated fatty acid having 11 carbon atoms or less is used as the fatty acid, skin irritation may become severe and it may be unsuitable for use as a cosmetic composition. More specifically, the fatty acid is a mixture of two or more selected from the group consisting of lauric acid with 12 carbon atoms, myristic acid with 14 carbon atoms, palmitic acid with 16 carbon atoms, and stearic acid with 18 carbon atoms, such as lauric acid with 12 carbon atoms. , it may be a mixture of myristic acid with 14 carbon atoms, palmitic acid with 16 carbon atoms, and stearic acid with 18 carbon atoms.

For example, the sucrose stearate may be included in an amount of 1% to 5% by weight based on the total amount of the cosmetic composition. By including the sucrose stearate in the above content range, the dispersibility of fatty acids contained in a high content can be improved.

For example, the emulsifier may further include glyceryl stearate. In this case, sucrose stearate and glyceryl stearate used as the emulsifier may each independently be included in an amount of 1% to 5% by weight based on the total amount of the cosmetic composition. For example, the sucrose stearate and glyceryl stearate may each be included in the same amount.

Meanwhile, the cosmetic composition may further include a chelating agent and a neutralizing agent. Examples of the chelating agent include disodium EDTA, and examples of the neutralizing agent include potassium hydroxide. However, the chelating agent and neutralizing agent are not necessarily limited thereto. The neutralizing agent can neutralize the above-mentioned fatty acids with a neutralization rate of about 80%.

For example, the cosmetic composition may be composed of polyol, fatty acid, emulsifier, chelating agent, neutralizer, surfactant, fragrance, and water. At this time, the surfactant may not include PEG surfactant, such as PEG-32 and PEG-100 stearate.

For example, the cosmetic composition may be a PEG surfactant-free cosmetic composition having a PEG surfactant-free composition.

The cosmetic composition may have a viscosity of 800,000 cps to 1,200,000 cps. The viscosity may be measured at 0.5 rpm for 1 minute in a thermostat at 30°C.

The cosmetic composition may be a cosmetic composition for facial cleanser. Specifically, the cosmetic composition may have formulations such as hand wash, body wash, cleansing foam, and cleansing gel, but is not necessarily limited thereto. When the cosmetic composition has a cleansing foam formulation, the cleansing foam may be a soap paste type cleansing foam.

In addition, the cosmetic composition according to one embodiment may contain an appropriate amount of auxiliary ingredients such as ethanol, extracts, functional efficacy ingredients, dispersants, pigments, fragrances, and preservatives commonly used in the production of cosmetics, and preferably the auxiliary ingredients. It may be included in an amount of 0% to 90% by weight based on the total amount of the cosmetic composition.

Hereinafter, the contents of the present invention will be described in more detail through examples and comparative examples. These examples are provided to understand the content of the present invention, but the scope of the present invention is not limited to these examples and test examples, and modifications, substitutions, and insertions commonly known in the art can be performed. It can be done, and this is also included in the scope of the present invention.

(Example)

Preparation of cosmetic compositions

A cosmetic composition for face wash was prepared by a conventional method according to the compositions in Tables 1 to 5 below. In each Example and Comparative Example, 80% of the fatty acids were neutralized using a neutralizing agent (potassium hydroxide). Specifically, the remaining ingredients except potassium hydroxide, chelating agent, and fragrance were dissolved by heating and maintained at about 70°C, and then potassium hydroxide was added to carry out a neutralization reaction to prepare a neutralization reaction solution. The chelating agent and fragrance were added to the neutralization reaction solution, mixed well, and then cooled to prepare a cosmetic composition for facial cleanser.

(Unit: weight%) Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 water To 100 To 100 To 100 To 100 To 100 To 100 Disodium EDTA 0.05 0.05 0.05 0.05 0.05 0.05 Butylene glycol 12.6 14 15 7 10.5 15.75 glycerin 8.4 7 6 14 10.5 5.25 Lauric Acid 31 31 31 31 31 31 Myristic Acid Palmitic Acid Stearic Acid Glyceryl Stearate 2 2 2 2 2 2 Sucrose Stearate 2 2 2 2 2 2 Potassium Hydroxide 5.8 5.8 5.8 5.8 5.8 5.8 incense 0.4 0.4 0.4 0.4 0.4 0.4

(Unit: weight%) Example 4 Example 5 Example 6 Example 7 Example 8 Comparative Example 4 Comparative Example 5 Comparative Example 6 water To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 Disodium EDTA 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Butylene glycol 12.4 15.5 18.6 21.7 24.8 6.2 9.3 27.9 glycerin 7.6 9.5 11.4 13.3 15.2 3.8 5.7 17.1 Lauric Acid 31 31 31 31 31 31 31 31 Myristic Acid Palmitic Acid Stearic Acid Glyceryl Stearate 2 2 2 2 2 2 2 2 Sucrose Stearate 2 2 2 2 2 2 2 2 Potassium Hydroxide 5.8 5.8 5.8 5.8 5.8 5.8 5.8 5.8 incense 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4

(Unit: weight%) Example 9 Comparative Example 7 Comparative Example 8 Comparative Example 9 water To 100 To 100 To 100 To 100 Disodium EDTA 0.05 0.05 0.05 0.05 Butylene glycol 13 - - - Permandiol - - 13 - Dipropylene glycol - - - 13 glycerin 8 21 8 8 Lauric Acid 31 31 31 31 Myristic Acid Palmitic Acid Stearic Acid Glyceryl Stearate 2 2 2 2 Sucrose Stearate 2 2 2 2 Potassium Hydroxide 5.8 5.8 5.8 5.8 incense 0.4 0.4 0.4 0.4

(Unit: weight%) Example 10 Comparative Example 10 water To 100 To 100 Disodium EDTA 0.05 0.05 Butylene glycol 13 13 glycerin 8 8 Lauric Acid 30 30 Myristic Acid Palmitic Acid Stearic Acid Glyceryl Stearate 2 2 Sucrose Stearate 2 - Potassium Hydroxide 5.8 5.8 incense 0.4 0.4

(Unit: weight%) Example 11 Example 10 Example 12 Example 13 Comparative Example 11 water To 100 To 100 To 100 To 100 To 100 Disodium EDTA 0.05 0.05 0.05 0.05 0.05 Butylene glycol 13 13 13 13 13 glycerin 8 8 8 8 8 Lauric Acid 25 30 35 40 20 Myristic Acid Palmitic Acid Stearic Acid Glyceryl Stearate 2 2 2 2 2 Sucrose Stearate 2 2 2 2 2 Potassium Hydroxide 4.8 5.8 6.7 7.7 3.9 incense 0.4 0.4 0.4 0.4 0.4

Test example: properties, viscosity and constant temperature stability

The cosmetic compositions according to Examples 1 to 13 and Comparative Examples 1 to 11 were evaluated for their properties, viscosity, and constant temperature stability, and the results are shown in Tables 6 to 1 and Figures 1 to 3 below.

The specific evaluation method is as follows.

<Appearance>

After applying 0.5 g of the cosmetic composition formulated on a slide glass and spreading it, it was judged to be good if it had a smooth creamy appearance without agglomeration such as granules or a rough surface like sherbet.

<Viscosity>

The cosmetic composition formulated in a 30°C constant temperature bath was measured using a BROOKFIELD RVT viscometer, spindle No. D, at 0.5 rpm for 1 minute, and if the value was between 800,000 cps and 1,200,000 cps, it was judged to be good.

<Constant temperature stability>

1) -4℃: If there is no problem with the properties when the room temperature is restored, the test is judged as good. (Check the condition for up to 4 weeks)

2) 4℃: If there are no abnormalities in the properties, it is judged as good. (Check the condition for up to 4 weeks)

3) 37℃: If the formulation does not melt and phase separation does not occur, it is judged as good. (Check the condition for up to 4 weeks)

4) 45℃: If phase separation does not occur, it is judged as good. (Check the condition for up to 4 weeks)

5) Cycle: If there is no problem with the properties when restoring room temperature and no phase separation occurs, the test is judged as good. (Check the condition for up to 4 weeks) (Cycle: Temperature changes from -4℃ to 45℃ at 12-hour intervals.)

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Appearance Good Good Good Unable to manufacture Rough cotton condition Good Viscosity (cps) 980,000 920,000 1,600,000 880,000 1,480,000 constant temperature stability Good Good Good Good Good

From Table 6, Figures 1 and 2, it can be seen that butylene glycol and glycerin must be mixed at a specific weight ratio to ensure excellent properties, viscosity and constant temperature stability. In particular, it can be confirmed that when butylene glycol and glycerin are included in a weight ratio of 1:2, the fatty acid is not dispersed properly and hardening occurs already during the manufacturing process (making it impossible to manufacture). When glycerin is included in a weight ratio of 2:2, even if the formulation is completed, fatty acids are not dispersed properly, so it can be confirmed that it has a rough and lumpy surface like sherbet instead of a soft white cream.

Example 4 Example 5 Example 6 Example 7 Example 8 Comparative Example 4 Comparative Example 5 Comparative Example 6 Appearance Good Good Good Good Good Unable to manufacture Unable to manufacture Rough cotton condition Viscosity (cps) 1,000,000 840,000 860,000 840,000 800,000 640,000 constant temperature stability Good Good Good Good Good High temperature (45℃) separation

From Table 7, it can be seen that the formulation stability is excellent when the total content of polyol including butylene glycol and glycerin is within a specific content range.

Example 9 Comparative Example 7 Comparative Example 8 Comparative Example 9 Appearance Good Unable to manufacture Good Good Viscosity (cps) 1,000,000 800,000 800,000 constant temperature stability Good High temperature (45℃) separation High temperature (45℃) separation

From Table 8, it can be seen that the formulation stability is excellent when the polyol contains both butylene glycol and glycerin.

Example 10 Comparative Example 10 Appearance Good Good Viscosity (cps) 1,000,000 1,000,000 constant temperature stability Good High temperature (45℃) separation

From Table 9 and Figure 3, it can be seen that the formulation stability is excellent only when sucrose stearate is included as an emulsifier.

Example 11 Example 10 Example 12 Example 13 Comparative Example 11 Appearance Good Good Good Good Good Viscosity (cps) 840,000 1,000,000 1,280,000 1,560,000 560,000 constant temperature stability Good Good Good Good High temperature (45℃) recording

From Table 10, it can be seen that the formulation stability is excellent when fatty acids are included in an amount of 25% by weight or more.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements can be made by those skilled in the art using the basic concept of the present invention as defined in the following claims. It falls within the scope of invention rights.

Claims (13)

Contains polyols, fatty acids and emulsifiers,
The polyol includes butylene glycol and glycerin in a weight ratio of 3:2 to 5:2,
The polyol is contained in an amount of 20% to 40% by weight based on the total amount of the cosmetic composition,
A cosmetic composition wherein the emulsifier includes sucrose stearate. In paragraph 1:
The polyol is a cosmetic composition comprising butylene glycol and glycerin in a weight ratio of 3:2 to 4:2. In paragraph 1:
A cosmetic composition in which the fatty acid is contained in an amount of 25% by weight or more based on the total amount of the cosmetic composition. In paragraph 1:
A cosmetic composition wherein the fatty acid is a mixture of one or more kinds of saturated fatty acids having 12 to 22 carbon atoms. In paragraph 4,
A cosmetic composition in which the fatty acid is a mixture of lauric acid with 12 carbon atoms, myristic acid with 14 carbon atoms, palmitic acid with 16 carbon atoms, and stearic acid with 18 carbon atoms. In paragraph 1:
The sucrose stearate is contained in an amount of 1% to 5% by weight based on the total amount of the cosmetic composition. In paragraph 1:
The cosmetic composition wherein the emulsifier further includes glyceryl stearate. In paragraph 1:
The cosmetic composition further includes a chelating agent and a neutralizing agent. In paragraph 1:
The cosmetic composition is composed of polyol, fatty acid, emulsifier, chelating agent, neutralizer, surfactant, fragrance and water. In paragraph 9:
The surfactant is a cosmetic composition that does not include PEG surfactant. In paragraph 1:
The cosmetic composition is a cosmetic composition having a PEG surfactant-free composition. In paragraph 1:
The cosmetic composition has a viscosity of 800,000 cps to 1,200,000 cps. In paragraph 1:
The cosmetic composition is a cosmetic composition for facial cleansing.