KR20160110760A - UV block cosmetic composition containing anionic surfactant and polymeric surfactant - Google Patents

Abstract

The present invention relates to a cosmetic composition for blocking UV rays, comprising 0.5-4.0 wt% of an anionic surfactant and 0.2-2.0 wt% of a polymeric surfactant, with respect to the total weight of the composition. Provided is the composition having excellent shape stability at high temperatures and excellent usability such as the application, the moistness, the softness, and the like, and having effects in blocking UV rays.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a UV block cosmetic composition containing an anionic surfactant and a polymeric surfactant,

The present invention relates to an oil-in-water (O / W) ultraviolet barrier cosmetic composition, and more particularly, to an ultraviolet barrier cosmetic composition comprising an anionic surfactant and a polymer surfactant.

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. In the case of UV-blocking agents for water-in-oil type, cosmetic materials resistant to perspiration and water have a long-lasting effect. However, they are not easily erased by washing due to their characteristics, while they are heavy and stiff feeling. On the other hand, And it is easy to use because of its light feeling.

However, in the case of an underwater type cosmetic having a high SPF, most of the organic UV blocking agent is an oil-soluble ingredient, and thus stability is often impaired at high temperatures. In order to stabilize this, it is possible to increase the viscosity or hardness of the cosmetic using a large amount of wax or higher alcohol to improve the stability at high temperature, but in this case, the feeling of use of the cosmetic tends to be thick and heavy. To prevent this, there is a need to improve the high temperature stability while reducing the amount of wax and higher alcohols used.

Japanese Patent Application Laid-Open No. 2008-247897

In order to solve the above-mentioned problems, the present invention provides a cosmetic composition for ultraviolet rays, which is less waxy or higher in alcohol consumption than a conventional ultraviolet barrier cosmetic composition, and has stability while maintaining a light feeling of underwater type.

The present invention also provides a cosmetic composition for ultraviolet rays which is stable even at a high temperature and is excellent in feeling of use such as spreadability.

The ultraviolet barrier cosmetic composition of the present invention comprises 0.5 to 4.0% by weight of an anionic surfactant and 0.2 to 2.0% by weight of a high molecular weight surfactant, based on the total weight of the composition, for imparting light feeling and stability. In one embodiment, the inulin derivative is selected from the group consisting of inulin lauryl carbamate, stearic acid inulin, palmitoyl inulin, undecylenoyl inulin, , Hydroxypropyltrimonium Inulin, or a mixture of two or more thereof.

If the content of the anionic surfactant and the polymer surfactant is outside the upper limit of the above range, the viscosity of the composition may become too high or the stability of the formulation may be deteriorated. If the content falls outside the lower limit of the above range, There arises a problem that the emulsion stability is lowered because the emulsion particles are formed too large.

Anionic surface active agents of the invention are alkyl ether sulfates, carboxylates, amino acid derivatives, sulfonates, isethionates, taurates, sulfosuccinates, alkyl sulfo acetates, phosphates and alkyl phosphates, polypeptides, C ₁₀ - C ₃₀ and especially C ₁₆ -C ₂₅ fatty acids, especially metal stearates and behenates, and mixtures thereof. The anionic surfactant of the present invention is preferably potassium cetyl phosphate.

The cosmetic composition of the present invention is preferably an oil in water (O / W) composition.

The present invention can provide an ultraviolet-shielding cosmetic composition which improves the stability of a formulation and is excellent in feeling of use such as spreadability without using wax or high-grade alcohol, preferably does not contain a nonionic surfactant, The non-ionic surfactant is PGE-100 stearate.

The ultraviolet barrier cosmetic composition of the present invention may contain 5.0 to 30% by weight of an ultraviolet screening agent based on the total weight of the composition. In one embodiment, the ultraviolet screening agent may comprise 1.0 to 7.5% by weight of ethylhexylmethoxycinnamate or bis-ethylhexyl And 0.5 to 3.0% by weight of oxyphenol methoxyphenyltriazine. When the content is less than the above range, the effect as an ultraviolet-shielding cosmetic composition may be insignificant, and when it exceeds the above-mentioned content range, stability in the formulation may be impaired and there is a risk of precipitation.

The ultraviolet screening agent for use in the present invention is not particularly limited and includes, for example, an organic ultraviolet screening agent such as PABA (para-aminobenzoic acid) derivative, cinnamate derivative, salicylic acid derivative, benzophenone and anthranilic acid salt, An inorganic UV-blocking agent such as a hydroxide, a hydroxide, a nitrate, a magnesium oxide, and the like, or a mixture of two or more thereof. More specifically, there may be mentioned, for example, p-aminobenzoic acid, p-aminobenzoic acid methyl, p-aminobenzoic acid glyceryl, paradimethylaminobenzoic acid amine, paradimethylaminobenzoic acid octyl, salicylic acid ethyleneglycol, phenyl salicylate, octyl salicylate, butylphenyl salicylate, Octyl methoxycinnamate, octyl methoxycinnamate, ethoxyethyl methoxycinnamate, hydroxymethoxybenzophenone, dihydroxydimethoxybenzophenone, butylmethoxybenzoylmethane, octyltriazone, and the like.

The ultraviolet barrier cosmetic composition of the present invention may further comprise an emulsion stabilizer, a viscosity modifier, an emollient, and the like.

The emulsion stabilizer enhances the stability of the formed emulsion. For example, at least one selected from the group consisting of stearic acid, cetearyl alcohol and behenyl alcohol may be used, but is not limited thereto.

Viscosity modifiers act to keep the particles generated by emulsification from floating in the upper layer while maintaining a low viscosity. As the viscosity adjuster, at least one selected from the group consisting of xanthan gum, gellan gum, natto gum, guar gum, and hydrolyzates thereof may be used, but the present invention is not limited thereto.

Emollients can help stabilize formulations by having a lower polarity than organic sunscreens such as hydrocarbons such as hydrogenated polyisobutene, hydrogenated polydecenes and phytosqualanes; And triglycerides such as caprylic / capric triglyceride, meadowfoam seed oil and sunflower seed oil, but the present invention is not limited thereto.

The cosmetic composition of the present invention may be prepared in any form conventionally produced in the art and may be in the form of solution, suspension, emulsion, paste, gel, cream, lotion, powder, oil, powder foundation, emulsion A foundation, a wax foundation, a spray, and the like, but the present invention is not limited thereto. More specifically, it can be manufactured into formulations of sunscreen, supple lotion, astringent lotion, nutritional lotion, nutritional cream, massage cream, essence, eye cream, pack, spray or powder.

When the formulation of the present invention is a paste, cream or gel, an animal oil, vegetable oil, paraffin, starch, tracant, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc or zinc oxide may be used as the carrier component .

When the formulation of the present invention is a powder or a spray, lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder may be used as a carrier component. In the case of a spray, in particular, / Propane or dimethyl ether.

When the formulation of the present invention is a solution or an emulsion, a solvent, a dissolving agent or an emulsifying agent is used as a carrier component, and examples thereof include water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, , 3-butyl glycol oil, glycerol aliphatic ester, polyethylene glycol or sorbitan fatty acid esters.

In the case where the formulation of the present invention is a suspension, a carrier such as water, a liquid diluent such as ethanol or propylene glycol, a suspending agent such as ethoxylated isostearyl alcohol, polyoxyethylene sorbitol ester and polyoxyethylene sorbitan ester, Cellulose, aluminum metahydroxide, bentonite, agar or tracant, etc. may be used.

The ultraviolet barrier cosmetic composition according to the present invention basically has an effect of shielding ultraviolet rays, while maintaining a light use feeling of an underwater type and has excellent feelings such as spreadability, moistness and softness. In addition, it has excellent formulation stability such as stability at high temperature.

Figure 1 shows the composition of Example 1 (a) and Comparative Example 2 (b) stored at 50 캜 for 4 weeks and observed with a microscope.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are for further illustrating the present invention, and the scope of the present invention is not limited to these examples.

Example 1 and Comparative Examples 1 to 5

The cosmetic compositions of Example 1 and Comparative Examples 1 to 5 were prepared according to the compositions shown in Table 1 below (unit: wt%).

Raw material name Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Parte






To a solution of < RTI ID = 0.0 & 7.000 7.000 7.000 7.000 7.000 7.000 To a solution of < RTI ID = 4.500 4.500 4.500 4.500 4.500 4.500 Titanium dioxide 3.000 3.000 3.000 3.000 3.000 3.000 C12-15 alkyl benzoate 4.000 4.000 4.000 4.000 4.000 4.000 Bis-ethylhexyloxyphenol methoxyphenyltriazine 2.000 2.000 2.000 2.000 2.000 2.000 Diethylaminohexoxybenzoylhexylbenzoate 3.000 3.000 3.000 3.000 3.000 3.000 FAGE -100 stearate - 1.500 1.500 1.500 - - Cyclopentasiloxane 3.000 3.000 3.000 3.000 3.000 3.000 Part B










Purified water to 100 to 100 to 100 to 100 to 100 to 100 Tromethamine 1.600 1.600 1.600 1.600 1.600 1.600 Phenylbenzimidazolesulfonic acid 2.700 2.700 2.700 2.700 2.700 2.700 Tree sodium 0.020 0.020 0.020 0.020 0.020 0.020 glycerin 2.000 2.000 2.000 2.000 2.000 2.000 Dipropylene glycol 2.000 2.000 2.000 2.000 2.000 2.000 1,2-hexanediol 2.000 2.000 2.000 2.000 2.000 2.000 Panthenol 1,000 1,000 1,000 1,000 1,000 1,000 Inulin lauryl carbamate 0.800 - 0.800 - - 0.800 Potassium cetyl phosphate 2.000 - - 2.000 2.000 - Xanthan gum 0.200 0.200 0.200 0.200 0.200 0.200 Magnesium aluminum silicate 0.400 0.400 0.400 0.400 0.400 0.400 Part C

Purified water 20,000 20,000 20,000 20,000 20,000 20,000 Acrylate / C10-30 alkyl acrylate crosspolymer 0.200 0.200 0.200 0.200 0.200 0.200 Spices Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount

First, the raw materials of Part A and B were weighed and dispersed evenly at 70 캜 with stirring. Part A was added to Part B and stirred to emulsify.

Separately stirred Part C was slowly added to the mixed composition of Parts A and B prepared above with stirring and mixed evenly.

Experimental Example 1: Evaluation of viscosity and formulation stability

The viscosity of the composition prepared in Example 1 and Comparative Examples 1 to 5 was measured using Brookfield LVT and spindle No. 4 was used. The measurement results are shown in Table 2 below.

After the composition was stored at 50 ° C for 8 weeks, the stability change was visually observed to determine whether or not the layer was separated. The results are shown in Table 3 below.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Viscosity (cPs) 7500 15800 11600 14200 10500 9000

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 1 week stability stability stability stability stability A little separation 2 weeks stability A little separation stability stability A little separation A little separation 4 weeks stability detach A little separation A little separation detach detach 8 weeks stability detach detach detach detach detach

As a result of confirming the first-order viscosity after the preparation of Example 1 and Comparative Examples 1 to 5, it was found that only Comparative Example 1, in which only a nonionic surfactant, Phage-100 stearate, was used without using an anionic surfactant and a high- 1 showed the highest viscosity. In Example 1, which contains both an anionic surfactant and a polymer surfactant, the lowest viscosity was exhibited.

Also, when comparing the formulation stability of the composition at 50 ° C, Example 1, which includes both potassium cetyl phosphate, an anionic surfactant, and inulin lauryl carbamate, a polymeric surfactant, has the lowest viscosity Despite this, the oil and water phase remained stable for more than 8 weeks. In contrast, in the case where only a nonionic surfactant was used (Comparative Example 1) and a polymeric surfactant or an ionic surfactant was mixed with another nonionic surfactant (Comparative Examples 2 and 3), the ionic interface In the case of using an activator or a polymer surfactant (Comparative Examples 4 to 5), it was confirmed that the oil phase and the water phase were separated over time.

The compositions of Example 1 and Comparative Example 2 were stored at 50 캜 for 4 weeks and then observed under a microscope, as shown in FIG. 1 (see FIGS. 1 a and b). In the case of Example 1, dense emulsified particles were retained, but in Comparative Example 2, it was confirmed that emulsified particles could not be formed due to aggregation of the emulsions.

Experimental Example 2: Evaluation of feel

For each of the compositions obtained in Example 1 and Comparative Examples 1 to 5, the feeling of use of the composition was evaluated using a panel composed of 20 women aged 25-40 years. At this time, the evaluation item was to measure the dullness, moistness and softness felt on the skin when applied to the skin. The evaluation was made from one point to five points in one point unit, and the evaluation was very poor (one point), poor (two points) (3 points), good (4 points), and very good (5 points). The evaluation results are shown in Table 4 below.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Brittle 4.3 3.8 4.0 4.1 4.2 4.2 Moistness 4.2 3.6 3.9 3.7 3.9 4.0 Softness 4.3 3.7 3.7 3.9 4.3 4.0

When comparing the results of the feeling of use evaluation in the case of Example 1 and Comparative Examples 1 to 5, it was found that only a nonionic surfactant was used (Comparative Example 1) or a polymeric surfactant or an ionic surfactant was used together with a nonionic surfactant (Comparative Examples 2 and 3), it was confirmed that the hardness was high and the softness was hard and the moisture was inferior. On the other hand, in the case of Example 1, the evaluation value of 4.2 or more in terms of spreading, moisturizing and softness showed the best feeling.

Claims (9)

0.5 to 4.0% by weight of an anionic surfactant and 0.2 to 2.0% by weight of a high molecular weight surfactant based on the total weight of the composition.
The method according to claim 1,
Wherein the cosmetic composition is an oil-in-water (O / W) type.
The method according to claim 1,
Wherein the polymeric surfactant is an inulin derivative.
The method of claim 3,
Wherein the polymeric surfactant is inulin lauryl carbamate.
The method according to claim 1,
Wherein the anionic surfactant is potassium cetyl phosphate.
The method according to claim 1,
Wherein the cosmetic composition does not contain a nonionic surfactant.
The method according to claim 6,
Wherein the nonionic surfactant is a phage-100 stearate.
The method according to claim 1,
Wherein the cosmetic composition comprises 5.0 to 30% by weight of an ultraviolet screening agent based on the total weight of the composition.
9. The method of claim 8,
Wherein the ultraviolet screening agent comprises 1.0 to 7.5% by weight of ethylhexylmethoxycinnamate or 0.5 to 3.0% by weight of bis-ethylhexyloxyphenol methoxyphenyltriazine.

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