KR20160107064A - Sunscreen composition comprising polyglyceryl surfactants - Google Patents

Abstract

Provided in the present invention is a cosmetic composition for blocking ultraviolet (UV) rays, which comprises a polyglyceryl-based surfactant and a nonionic surfactant. The cosmetic composition additionally comprises an inorganic agent for blocking UV rays and an organic agent for blocking UV rays. The composition for blocking UV rays of the present invention has excellent usability and can have excellent shape stability.

Description

A sunscreen composition comprising polyglyceryl surfactants comprising a polyglyceryl-based surfactant,

More particularly, the present invention relates to a cosmetic composition for in-water type ultraviolet rays having excellent stability without phase separation, excellent spreadability, and improved skin dryness.

Ultraviolet rays emitted from sunlight act as a major cause of causing erythema, edema, freckles, and skin cancer in the skin. Recently, many researches on various skin diseases caused by ultraviolet rays are actively conducted. In general, ultraviolet rays are classified into UV-C at a wavelength of 200-280 nm, UV-B at a wavelength of 280-320 nm, and UV-A at a wavelength of 320-400 nm. UV-C passes through the ozone layer and disappears without reaching the surface. UV-B penetrates into the epidermis of the skin, causing irritation, freckles and edema. UV-A penetrates into the dermis of the skin and promotes skin cancer, wrinkles and melanin formation, and is known to cause skin aging and skin irritation. A number of epidemiological studies have demonstrated a strong relationship between sunlight exposure and human skin cancer and detailed relationships have been discussed (DeSimone, 'Sunscreen and Suntan Products', Handbook of Nonpre-scription Drugs, 7th Ed., Chapter 26, pp499- 511, American Pharmaceutical Association, Washington, DC; 1982).

As a result of the above-mentioned risks associated with exposure to sunlight, the general public's interest in sunscreen products has increased and as a result various sunscreen products with various SPF (sun protection factor) have been introduced. In order to have a high SPF value, the ultraviolet screening product is preferably an inorganic sunscreen agent such as titanium dioxide or zinc oxide or an ultraviolet screening agent such as ethylhexylmethoxycinnamate, hexylhexylsalicylate, octocrylene, butylmethoxydibenzoylmethane, bis- Phenol methoxyphenyltriazine, and diethylaminohydroxybenzoylhexylbenzoate. The term " organic sunscreen agent "

Also, according to the manufacturing method of the product, it is divided into an oil in water (O / W) type emulsion type ultraviolet ray blocking cosmetic and a water in oil (W / O) type ultraviolet ray blocking cosmetic. Underwater type UV protection It is easy to use because it is moist and light feeling of cosmetics but it is easy to be wiped off in sweat and water. In the case of cosmetics for UV blocking in water, it is effective against sweat and water and lasts long, It is not easily erased when cleansing and is characterized by feeling heavy and frustrating.

In order to lightly control the feeling of heavy and frustrating feeling, the price of water-in-oil type cosmetics increases the ratio of my awards. Since the stability of the formulation is deteriorated due to the characteristics of the formulation, the viscosity is maintained in order to solve the problem. As a result, the feeling of use becomes heavier and the feeling of use is limited.

Therefore, even if the amount of my merchant aquaria is stable and the viscosity is kept low, excellent feeling of use can be obtained with the characteristics of the existing W / O.

On the other hand, Korean Patent Registration No. 10-2011-0012942 discloses a cosmetic composition for blocking ultraviolet rays that improves the agglomeration of an inorganic ultraviolet screening agent. However, problems such as phase separation have been confirmed although the dispersibility can be increased in a cosmetic composition, It was not enough to improve stability.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems and to provide a composition for an organic / inorganic hybrid compound having no phase separation and excellent stability.

The present invention also provides a cosmetic composition for ultraviolet shielding which is excellent in spreadability and excellent in feeling of use.

In order to solve the above problems, the present invention provides a cosmetic composition for UV screening, which comprises a polyglyceryl-based surfactant and a nonionic surfactant, and comprises an inorganic UV-blocking agent and an organic UV-blocking agent.

The inventors of the present invention have found that a W / O type ultraviolet ray blocking cosmetic having a high ultraviolet ray blocking index has a long lasting effect due to strong resistance to sweat and water, but due to its characteristics, it is not easily erased when cleansing, In order to lightly adjust the feeling of heavy and frustrating feeling, the ratio of the water phase is raised. In this case, the stability of the formulation is impaired.

When the wax or gelling agent is used to increase the stability of the cosmetic composition, the feeling of use is not good and there is a limit to showing a feeling of light feeling. Therefore, in the industry, I studied for a long time. As a result, the inventors of the present invention have found that, when a polyglyceryl-based surfactant and a nonionic surfactant are mixed with an ultraviolet screening composition mixed with an organic UV-blocking agent, the cosmetic composition is excellent in stability, And completed the present invention.

The inventors of the present invention have found that polyglyceryl-3 polyisinolate, which is a composite ester of a polymer of ricinoleic acid and polyglycerin, among polyglyceryl-type surfactants, can be used in combination with phage-30 dipolyhydroxystearate It is surprisingly found that a cosmetic composition for ultraviolet screening which is excellent in usability and low in viscosity without phase separation of an inorganic ultraviolet screening agent can be obtained when it is used together with a nonionic surface active agent of the present invention.

The polyglyceryl-based surfactant may further include at least one selected from the group consisting of polyglyceryl-2 sesquiisostearate, polyglyceryl-2 triisostearate, polyglyceryl-3 methylglucose distearate, polyglyceryl- Polyglyceryl-6 behenate, and polyglyceryl-6 polyphenolic acid can be used.

The inventors of the present invention confirmed that the use of a nonionic surfactant together with the polyglyceryl-based surfactant is effective in achieving the object of the present invention, and completed the present invention.

That is, the inventors of the present invention have found that when a nonionic surfactant is used together, it is possible to produce a cosmetic composition which is excellent in shelf-life of the composition for ultraviolet light shielding, and which is excellent in stability without phase separation.

The cosmetic composition for protecting against UV rays of the present invention comprises the above nonionic surfactant, and the nonionic surfactant is selected from the group consisting of sorbitan sesquioleate, phage-9 polydimethylsiloxy ethyldecethicone, Piperazine-10/1 dimethicone, lauryl phage-9 polydimethylsiloxy ethyldecichione, and cetylpyridyl / piperazine-9 dimethicone, 10 dimethicone, preferably at least one selected from the group consisting of cetylpiperazine / piperazine-10/1 dimethicone, and most preferably, phage-30 dipolyhydroxystearate. .

The inorganic ultraviolet screening agent may be at least one selected from the group consisting of titanium dioxide and zinc oxide.

Wherein the organic UV blocking agent is selected from the group consisting of ethylhexylmethoxycinnamate, ethylhexylsalicylate, octocrylene, butylmethoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranylate, methylenebis-benzotriazolyltetramethyl Butylphenol, homosalate, ethylhexyltriazone, 3,4-methylbenzylidene kempfer, isoamyl-p-methoxy cinnamate, bis-ethylhexyloxyphenol methoxyphenyltriazine, polysilicon- Hydroxybenzoylhexyl benzoate, aminohydroxybenzoylhexyl benzoate, and phenyl benzimidazole disulfonic acid.

The polyglyceryl surfactant may be contained in an amount of 0.3 to 5% by weight, preferably 0.5 to 4% by weight, more preferably 0.8 to 2.5% by weight, based on the total weight of the cosmetic composition. If the amount is less than the above range, there may be a problem that the viscosity of the formulation increases and separation occurs, and if it exceeds the above range, the formulation stability may be problematic.

The nonionic surfactant may be contained in an amount of 0.5 to 10% by weight, preferably 1 to 7% by weight, more preferably 1.5 to 6% by weight based on the total weight of the cosmetic composition. When the amount is less than the above range, there may be a problem that the emulsification is not properly performed and separation occurs. If it exceeds the above range, the viscosity may be increased and the emulsion stability may be problematic.

The inorganic UV-blocking agent may be contained in an amount of 2 to 30% by weight, preferably 3 to 25% by weight, more preferably 5 to 20% by weight based on the total weight of the cosmetic composition. If it is less than the above range, there may be a problem that the ultraviolet ray shielding effect is insufficient, and if it exceeds the above range, dispersion in the formulation may not be achieved and there may be a problem in formulation stability.

The organic UV blocking agent may be contained in an amount of 1 to 30% by weight, preferably 3 to 25% by weight, more preferably 5 to 20% by weight based on the total weight of the cosmetic composition. If the amount is less than the above range, there may be a problem that the ultraviolet blocking effect is inferior. If the amount exceeds the above range, skin irritation and formulation stability may be problematic.

The method for preparing the ultraviolet screening composition of the present invention can be produced by a conventional method for preparing a composition for an ultraviolet screening agent comprising an organic ultraviolet screening agent in powder form and an inorganic ultraviolet screening agent in the art.

In addition, the skin application amount of the cosmetic composition for protecting ultraviolet rays according to an embodiment of the present invention can be variously selected according to the condition of the skin, the degree of reaction to ultraviolet rays of the skin, ultraviolet ray index and the like. Application may be made once a day, or divided into several times.

The formulation of the ultraviolet barrier cosmetic composition according to one embodiment of the present invention as described above is not particularly limited.

The ultraviolet screening composition of the present invention provides excellent stability without phase separation.

The present invention also provides a cosmetic composition for ultraviolet shielding which is excellent in spreadability and excellent in feeling of use.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the above-described embodiments. The embodiments of the present invention are provided by way of example to facilitate a specific understanding of the present invention.

≪ Examples of Manufacturing Cosmetics According to Emulsifiers >

A composition for protecting ultraviolet rays having the composition shown in the following Table 1 was prepared by the following method. The units of the following components are expressed in weight percent.

Example Comparative Example Parte Titanium dioxide 7 7 Zinc oxide 7 7 Part B To a solution of < RTI ID = 0.0 & 7.5 7.5 To a solution of < RTI ID = 7 7 Phage-30 dipolyhydroxystearate 4.5 4.5 Cyclopentasiloxane 2 2 Polyglyceryl-3 polylynicollate 2 2 Distearmonium hectorite 1.5 - Three tilipies / piperazine-10/1 dimethicone One One Part C Purified water to 100 to 100 Phenylbenzimidazolesulfonic acid 3.5 3.5 glycerin 2.5 2.5 Magnesium sulfate 0.1 0.1 Tromethamine 2 2

1) C raw materials of Part A and B are respectively weighed.

2) Part B is heated to 70 - 75 ℃ and stirred. Part A is added and mixed to make it homogeneous.

3) Part C is heated to 70 - 75 ℃ and agitated to homogeneity.

4) Part C was slowly added to Part B, which was fully dispersed, and stirred to emulsify.

EXPERIMENTAL EXAMPLE 1: Viscosity change and formulation stability comparison of Examples and Comparative Examples>

The viscosity changes and the formulation stability of the compositions having the compositions shown in Table 1 and the comparative examples are shown in Tables 2 and 3 below.

The viscosity changes of the following Table 2 are shown by measuring the cosmetic composition having compositions of Examples and Comparative Examples at 25 캜 with a Brookfield LVT and a spindle 4.

Viscosity Example 5000 cps Comparative Example 9800 cps

Table 3 shows the results of confirming the formulation stability of Examples and Comparative Examples according to the temperature.

Example Comparative Example 50 degrees (21 days) stability detach 45 degrees (30 days) stability detach CYCLE (-10 degrees -> 45 degrees) (30 days) stability A little separation

In order to confirm the stability of the formulation according to the emulsification system, the remaining contents were fixed and the experiment was conducted by using polyglyceryl surfactant. As a result, it was confirmed that the formulation viscosity was stable according to the aging time, although the viscosity of the Example was lower than that of the Comparative Example. As a result, the oil and inorganic sunscreen agent were separated in the upper layer, A phenomenon has been discovered. In the case of the example as described above, it was confirmed that the stability was even better at low viscosity.

<Experimental Example 2. Comparison of Customer Satisfaction between Examples and Comparative Examples>

For each of the samples obtained in the Examples and Comparative Examples, a panel composed of 20 women aged 25-40 years was used to evaluate the feeling of use. The evaluation items were 1 point from 5 points to 1 point, very poor (1 point), poor (2 points), normal (3 points) Point), good (4 points), and very good (5 points).

Brittle A sense of closeness Oiliness Finish Example 4.2 4.2 4.0 4.1 Comparative Example 3.8 4.2 3.6 3.7

In the case of the examples and the comparative examples, the contact feeling which is characteristic of the W / O cosmetics of the embodiment showed the same level as the existing one, but the better the preference even in the spreadability, the oiliness and the finish feeling.

Claims (10)

A polyglyceryl-based surfactant and a nonionic surfactant,
An inorganic UV-blocking agent, and an organic UV-blocking agent. The cosmetic composition for protecting ultraviolet rays according to claim 1, wherein the polyglyceryl-based surfactant is a composite ester of a polymer of ricinoleic acid and a polyglycerin. The polyglyceryl-based surfactant according to claim 1, wherein the polyglyceryl-based surfactant is selected from the group consisting of polyglyceryl-3 polylysinolate, polyglyceryl-2 sesquiisostearate, polyglyceryl-2 triisostearate, polyglyceryl- Polyglyceryl-6 stearate, polyglyceryl-6 behenate, and polyglyceryl-6 polylysinolate, wherein the polyglyceryl-6 polyglycolate is at least one selected from the group consisting of polyglyceryl distearate, polyglyceryl-6 stearate, polyglyceryl-6 behenate and polyglyceryl-6 polyphenolic acid. The composition of claim 1, wherein the non-ionic surfactant is selected from the group consisting of sorbitan sesquioleate, phage-9 polydimethylsiloxyethyldethicone, phage-10 dimethicone, phage-30 dipolyhydroxystearate , Trimethylpiperazine / piperidine-10/1 dimethicone, laurylpage-9 polydimethylsiloxy ethyl cholate dimethicone, and cetylpiperazine / piperazine-10/1 dimethicone. By weight based on the total weight of the cosmetic composition. The cosmetic composition for protecting ultraviolet rays according to claim 1, wherein the inorganic UV-blocking agent is at least one selected from the group consisting of titanium dioxide and zinc oxide. The organic UV curing agent according to claim 1, wherein the organic UV blocking agent is at least one selected from the group consisting of ethylhexyl methoxycinnamate, ethylhexylsalicylate, octocrylene, butylmethoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranylate, -Benzotriazolyltetramethylbutylphenol, homosalate, ethylhexyltriazone, 3,4-methylbenzylidene kempfer, isoamyl-p-methoxy cinnamate, bis-ethylhexyloxyphenol methoxyphenyltriazine, poly Silicone-15, diethylaminohydroxybenzoylhexylbenzoate, and phenylbenzimidazolesulfonic acid. The cosmetic composition according to claim 1, The cosmetic composition for protecting ultraviolet rays according to claim 1, wherein the polyglyceryl surfactant is contained in an amount of 0.3 to 5 wt% based on the total weight of the cosmetic composition. The cosmetic composition for protecting ultraviolet rays according to claim 1, wherein the nonionic surfactant is contained in an amount of 0.5 to 10% by weight based on the total weight of the cosmetic composition. The cosmetic composition according to claim 1, wherein the inorganic UV blocking agent is contained in an amount of 2 to 30% by weight based on the total weight of the cosmetic composition. The cosmetic composition for protecting ultraviolet rays according to claim 1, wherein the organic UV blocking agent is contained in an amount of 1 to 30% by weight based on the total weight of the cosmetic composition.