KR101923715B1 - Water-drop solid type cosmetic composition for blocking uv - Google Patents

Abstract

Disclosed are a water drop solid cosmetic composition for ultraviolet (UV) screening, and a production method thereof. According to one aspect of the present invention, the water drop solid cosmetic composition for ultraviolet screening leaves fresh feelings on skin in addition to excellent moisturizing effects due to water drops instantly produced upon application to the skin. In addition, the composition of the present invention is excellent in formulation stability, minimizes separation of components in the composition, and is evenly applied to the skin, thereby securing even UV-screening effects to the skin.

Description

WATER-DROP SOLID TYPE COSMETIC COMPOSITION FOR BLOCKING UV

Disclosed herein is a cosmetic composition for water drop solid UV blocking and a method for producing the same.

Water drop type cosmetics refers to cosmetics that can absorb water contained in cosmetics when they are applied to the skin to form water droplets on the skin and replenish enough moisture to the skin. Recently, attempts have been made to introduce such water drop cosmetic technology into cosmetics for ultraviolet rays shielding. However, cosmetics having excellent stability against ultraviolet ray shielding while maintaining the performance of water drop type cosmetics have not yet been developed. For example, Korean Patent Registration No. 10-1678559 discloses a water-drop solid type water-in-oil type cosmetic composition containing modified inorganic UV-ray shielding powder. This composition does not form a water drop well, Problems such as separation of formulations and cracks have been found due to inherent disadvantages of coatings, poor feeling of feeling of matte feeling, and separation of components contained in cosmetic compositions. As a result, the moisturizing effect of the water drop type cosmetics is not sufficiently realized on the skin, and the ultraviolet screening agent is not evenly distributed on the skin due to the formulation separation, and thus the effect as an ultraviolet screening agent is insignificant. Therefore, there is a need to develop cosmetics which have excellent water drop forming ability and formulation stability and also have excellent ultraviolet ray shielding effect while containing a sunscreen agent.

KR10-2014-0081293A KR10-1678559B

In one aspect, an object of the present invention is to provide a water-drop solid cosmetic composition having an ultraviolet-shielding effect and a moisturizing effect.

In one aspect, an object of the present invention is to improve the formulation stability of a water-drop solid cosmetic composition containing a sunscreen agent.

In order to achieve the above object, the present invention provides an organic sunscreen agent; An oily phase including an emulsifier, an oil and a solidifying agent; And water, and does not contain an inorganic ultraviolet screening agent. The present invention also provides a cosmetic composition for water drop solid UV screening.

The cosmetic composition for water-drop solid UV-screening, which is one aspect of the present invention, can impart a refreshing feeling to the skin with excellent moisture-absorbing effect owing to the water drop immediately generated upon application of the skin. In addition, the composition of the present invention is excellent in formulation stability, minimizing component separation of components in the composition, and evenly applied to the skin, thereby imparting an even UV-blocking effect to the skin.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a state where a water drop is formed in the composition of the present invention. FIG.
Fig. 2 is a view of the compositions described in the comparative examples of the present invention, in which a water drop is not formed. Fig.
Fig. 3 is a view showing a form containing an inorganic UV-blocking agent (Fig. 3B is a side view). Fig.

Hereinafter, the present invention will be described in detail.

The present invention relates to an organic sunscreen agent; An oily phase including an emulsifier, an oil and a solidifying agent; And water, and does not contain an inorganic ultraviolet screening agent, is a water drop solid cosmetic composition for blocking ultraviolet rays.

The emulsifier may be selected from the group consisting of Cetyl PEG / PPG-10/1 Dimethicone, Lauryl PEG-8 Dimethicone, Dimethicone / 10/15 crosspolymer (Dimethicone / PEG-10/15 Crosspolymer), and sorbitan sesquioleate, but the present invention is not limited thereto.

A composition according to one aspect of the present invention is characterized in that the emulsifier is selected from the group consisting of Cetyl Phosphite / Phosphite-10/1 Dimethicone, Lauryl Phage-8 Dimethicone, Dimethicone / Phage-10/15 Cross Polymer, Phage-9 polydimethylsiloxy ethyl dimethicone, phage-9 polydimethylsiloxy ethyldimethicone, lauryl phage-10 tris (trimethylsiloxy) silyl ethyldimethicone, 19/19 dimethicone, phage / piperazine-18/18 dimethicone, phage-10 dimethicone and sorbitan sesquioleate.

In one embodiment, the composition comprises, as emulsifier, cetylpiperazine / phyphage-10/1 dimethicone or laurylphage-8 dimethicone; Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate.

In one embodiment, the composition is selected from the group consisting of cetylpiperazine / phyphage-10/1 dimethicone or laurylphage-8 dimethicone; Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate in a weight ratio of 1: 1 to 2: 0.3 to 1.5, and preferably 1: 1.5 to 2: 0.5 to 1.2. When the emulsifier is contained at the above content ratio, a water drop solid UV blocking cosmetic composition containing an organic ultraviolet blocking agent and having excellent water drop forming power and securing formulation stability can be obtained. In addition, the water drop produced upon application of the composition of the present invention has an average diameter of about 1.1 to 1.3 times larger than that of a conventional water drop cosmetic, resulting in a high moisture content and excellent moisturizing effect.

In the above aspect, the cetylpiperazine / phopipio-10/1 or laurylphage-8 dimethicone may be contained in an amount of 0.2 to 1.0% by weight based on the total weight of the composition, preferably 0.3 to 0.8 By weight, more preferably 0.4 to 0.8% by weight.

In this regard, the emulsifier may comprise from 0.5 to 4.0% by weight, preferably from 0.7 to 3.0% by weight, more preferably from 1.0 to 2.5% by weight, 1.2 to 2.2% by weight. When the content of the emulsifier is 4.0 If the weight percentage is exceeded, a water drop can not be formed when applying the cosmetic composition.

In the above aspect, the solidifying agent may comprise a wax. The wax is not limited to, column includes at least one selected from candelilla wax, carnauba wax, microcrystalline wax, beeswax, ceresin, polyethylene, C _{30- 45} alkyl chikon methoxy, ceresin and Ozone Kane the group consisting of light can do.

The solidifying agent may be included in an amount of 1 to 10 wt%, preferably 2 to 9 wt%, more preferably 3 to 8 wt%, and most preferably 4 to 5 wt%, based on the total weight of the composition %. ≪ / RTI > If the content of the solidifying agent is out of the above range, a water drop may not be formed upon application or a crack may be generated in the solid dosage form.

In addition, in the above-mentioned aspect, the oil is selected from the group consisting of caprylic / capric triglyceride, phenyl trimethicone, isoeic acid, diisopropyl adipate, hydrogenated polyisobutene, octyldodecanol, But are not limited to, one or more selected from the group consisting of lysyl carbonate, sunflower seed oil, hexyldecyl myristyl methyl aminopropionate, cetyl hexyl hexanoate, macadamia seed oil and dimethicone.

The oil may be included in an amount of 3 to 20 wt%, preferably 5 to 18 wt%, more preferably 7 to 16 wt%, and most preferably 10 to 15 wt%, based on the total weight of the composition %. ≪ / RTI >

On the other hand, the organic sunscreen agent may be at least one selected from the group consisting of ethylhexyl methoxycinnamate, ethylhexylsalicylate, diethylaminohydroxybenzoylhexylbenzoate, octocrylene, ethylhexyltriazone, polysilicon-15, bishexylhexyloxy But are not limited to, at least one selected from the group consisting of phenol methoxyphenyltriazine and homosalate.

The organic ultraviolet screening agent may be contained in an amount of 3 to 25% by weight based on the total weight of the composition, preferably 5 to 22% By weight, more preferably 10 to 20% by weight. Preferably, the ethylhexylmethoxycinnamate may comprise up to 7.5% by weight, the ethylhexylsalicylate up to 5.0% by weight, and the homosalate up to 10% by weight.

In this respect, the composition may comprise 30 to 85% by weight of the water phase. The water-pervious part may be contained in an amount of preferably 50 to 80% by weight, more preferably 60 to 75% by weight, and most preferably 65 to 70% by weight, based on the total weight of the composition. The water-pervious portion may further include at least one of alcohols and an agonist. The alcohols may include, but are not limited to, polyhydric alcohols such as glycerin, butylene glycol, propylene glycol, sorbitol, or polyethylene glycol. The alcohols may be included in an amount of 1 to 10 wt%, preferably 2 to 8 wt%, more preferably 3 to 7 wt%, and most preferably 4 to 6 wt% based on the total weight of the composition .

In addition, the thickener may include, but is not limited to, xanthan gum. The thickener may be included in an amount of 0.01 to 1.0% by weight, preferably 0.1 to 0.5% by weight based on the total weight of the composition.

In one aspect, the present invention provides a cosmetic composition comprising: an organic sunscreen; Emulsifier, oil phase; And a water phase, and a step of mixing the water phase and the water phase.

The method may include dissolving the ultraviolet screening agent and the oil phase at a temperature of 70 to 80 DEG C and a stirring speed of 1000 to 2500 rpm for 5 to 15 minutes.

The method may further include the step of adding an aging agent to the mixture of alcohol and purified water and stirring and stirring at a temperature of 70 to 80 DEG C and a stirring speed of 500 to 2000 rpm for 5 to 30 minutes.

The method may further include the step of adding the water phase to the oil phase at 70 to 80 DEG C, and the adding step is a step of first stirring for 5 to 30 minutes at 500 to 1500 rpm and then at 1500 to 2500 rpm Followed by secondary agitation for 7 to 10 minutes. The method may further include a step of defoaming and filtering the composition at 65 to 80 DEG C to flow out.

The temperature range, stirring speed and agitation time of each of the above methods are optimized for producing the cosmetic composition for water drop solid UV blocking of the present invention. If the above conditions are not satisfied, the formulation stability is poor and the water drop There is a problem that it is not formed.

Hereinafter, the constitution and effects of the present invention will be described in more detail with reference to examples and test examples. However, these examples and test examples are provided for illustrative purposes only in order to facilitate understanding of the present invention, and the scope and scope of the present invention are not limited by the following examples.

[Preparation Example 1] Preparation of water drop solid cosmetic composition containing organic sunscreen agent

Cosmetic compositions were prepared using the ingredients expected in Table 1 below. The preparation method is as follows:

1. Dissolve / disperse the UV blocking / oily phase at a temperature of 70 to 80 ° C (5 to 15 minutes, Homo Mixer 1000 to 2500 rpm).

2. Add a water-soluble thickener (C2) to the water phase (C1, C3) and disperse it by reheating to 70 ~ 80 ℃ (5-30 minutes, Mixer 500 ~ 2000rpm).

3. Transfer the water phase to the oil phase, proceed for 5 to 30 minutes at 500 to 1500 rpm, preliminarily emulsify, and then emulsify at 1500 to 2500 rpm for 7 to 10 minutes. The temperature was maintained at 70-80 ° C.

4. Finally, the composition is defoamed and filtered at 65-80 < 0 > C to drain.

[Table 1]

Comparative Example 11 was manufactured by referring to Korean Patent No. 10-1678559. In Comparative Example 12, laurylpyrid-9 polydimethylsiloxyethyl dimethicone was used in an amount of 1 wt% instead of laurylpyrid-8 dimethicone, and instead of cetylpyridyl / piperazine-10/1 dimethicone, Phage-10 dimethicone was used in an amount of 1% by weight.

[Experimental Example 1] Formulation stability evaluation

The compositions prepared in Preparation Example 1 were evaluated for stability by the method described in Table 2 below. The results are shown in Table 3 below.

Storage conditions Storage period Assessment Methods 25 ℃ 6 months Using the airtight container, measure at 1 week, 1 month, 3 months, 6 months after storage Cycle (-5 ~ 40 ℃) 5 (30 min) to 5 (12 hr) -5 to 0 (30 min) 0 (12 hr) 0 to 25 (30 min) 25 (12 hr) 25 to 40 (30 min) ) 25 (12 hr) 25 ~ 0 (30 min) 0 (12 hr 0 ℃ 1 month evaluation Very good (◎) No change in properties, physical properties, flavor Good (○) There is no change in physical properties and flavor, but less than 5% (per volume) Usually (△) There are properties changes such as property changes, viscosity and hardness of less than 10% (per volume), but there is no problem in using the product Poor (X) Discoloration, separation, separation, etc.

Storage conditions term Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 50 ℃ 1 week ◎ X △ X △ X X △ △ X X X X 1 month ◎ X X X X X X X X X X X X - - - - - - - - - - - - - - 40 ℃ 1 week ◎ △ ○ △ ○ △ △ ○ ○ △ △ ○ △ 1 month ◎ △ △ △ △ X X △ △ X △ △ △ 3 months ◎ X △ X X X X △ △ X X △ X 5 ℃ 1 week ◎ ○ ○ △ ○ △ △ ○ ○ △ ○ ○ ○ 1 month ◎ △ △ X △ X X △ △ X △ △ △ 3 months ◎ X X X X X X X X X X X X Cyc 1 week ◎ △ △ X X X X △ △ X △ △ △ 1 month ◎ X X X X X X X X X X X X 3 months ○ X X X X X X X X X X X X 25 ℃ 1 week ◎ △ △ X △ X X △ △ X △ △ △ 1 month ◎ X X X X X X X X X X X X 3 months ○ X X X X X X X X X X X X 6 months ○ X X X X X X X X X X X X

As a result, the composition of the present invention is generally excellent in formulation stability at a low temperature, a normal temperature, a body temperature and a high temperature. However, when the emulsifier content or content ratio is different from that of the present invention or contains an inorganic UV blocking agent (Comparative Example 13) This was unstable.

[Experimental Example 2] Confirmation of water drop forming power

The water drop generation was measured by the number of drop drops scraped off the surface 10 times with a spatula after filling the contents into a 12 g aluminum dish, and the results are shown in Table 5. The water drop generation ability was evaluated according to the criteria shown in Table 4. [

Very good (◎) More than 5 drops (about 6g) drop formation Good (○) Drops of less than 2 drops and less than 4 drops Usually (△) Drop does not fall, surface has water Poor (X) No water formed or formulations collapsed

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 Water drop formation ◎ X X X △ X X △ △ X X X X

[Experimental Example 3] Confirmation of ultraviolet blocking effect

The in vitro UV-blocking index, labspere, was measured three times with a UV transmittance analyzer and the average values were shown in Table 7 below.

PFA PA Ultraviolet A blocking effect 2 to less than 4 PA + has exist 4 or more and less than 8 PA ++ In lots 8 or more PA +++ Very much

The UV blocking effect test results of Example 1 and Comparative Examples 1 to 12 are shown in Table 7 below.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 PA PA ++ PA + PA + PA + PA + PA + PA + PA + PA + PA + PA + PA + PA + SPF 28.5 18 23.5 17.5 25 10 11 16 16 40 5 16 16

On the other hand, when a composition containing an inorganic ultraviolet screening agent and producing an ultraviolet screening effect equivalent to that of Example 1 is prepared, the inorganic ultraviolet screening agent must be contained in an amount of 16% or more, and when the inorganic ultraviolet screening agent is contained, It was confirmed that a water drop formulation was not formed (Fig. 3).

[Experimental Example 4]

The panels were applied to the same amount of the composition of Example 1 and Comparative Examples 1 to 12 and tested for spreadability, uniform application, adhesion, and cooling sensation at the time of application (5 points: very good, 4 points: Good, 3 points: Normal, 2 points: Very poor, 1 point: Poor).

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 Brittle 4.5 3.5 3.4 2.8 3.3 2.8 3.0 3.0 2.8 2.8 2.8 2.0 3.5 Whether uniform application 4.8 3.3 3.5 2.7 3.0 2.3 2.4 2.5 2.5 3.0 3.0 2.0 3.5 Adhesion 4.8 3.5 4.2 2.7 2.8 2.5 2.8 2.5 2.8 3.0 2.5 1.0 3.5 Refreshing feeling 4.5 2.5 2.0 3.3 3.5 3.5 3.5 3.0 3.0 1.5 4.0 0.5 2.5

Claims (11)

A water drop solid cosmetic composition for ultraviolet shielding,
The composition may comprise,
Organic sunscreen agents; An oily phase including an emulsifier, an oil and a solidifying agent; And a water receiving portion including water,
Without an inorganic sunscreen,
The above-
≪ / RTI > dimethicone or laurylpiperidine-8 dimethicone;
Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate. The composition for cosmetics for water drop solid UV blocking. delete delete The method according to claim 1,
The composition may comprise,
≪ / RTI > dimethicone or laurylpiperidine-8 dimethicone;
Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate in a weight ratio of 1: 1 to 2: 0.3 to 1.5, respectively, in water drop solid cosmetic composition for UV screening. The method according to claim 1,
Wherein the solidifying agent comprises a wax,
The wax, candelilla wax, C _{30- 45} alkyl chikon methoxy, ceresin and Ozone cake containing one or more selected from the group consisting of light, water drop solid sunscreen cosmetic composition. The method according to claim 1,
The oil,
Wherein the cosmetic composition comprises at least one selected from the group consisting of caprylic / capric triglyceride, phenyl trimethicone, isoeic acid, diisopropyl adipate, and dimethicone. The method according to claim 1,
The organic UV-
Wherein the cosmetic composition comprises at least one selected from the group consisting of ethylhexyl methoxycinnamate, ethylhexyl methoxycinnamate, ethylhexylsalicylate and homosalate. The method according to claim 1,
The composition, based on the total weight of the composition,
A water drop solid UV blocking cosmetic composition comprising 3 to 25% by weight of an organic UV blocking agent, 0.5 to 2.5% by weight of an emulsifier, 3 to 13% by weight of an oil, 1 to 7% by weight of a solidifying agent, and 30 to 70% Composition. The method according to claim 1,
Wherein the water-receiving part further comprises at least one of an alcohol of 1 to 10 wt% and an increasing agent of 0.01 to 1.0 wt%. 10. The method of claim 9,
Wherein the alcohol comprises a polyhydric alcohol and the thickening agent comprises xanthan gum. 10. A method for producing a cosmetic composition for water-drop solid UV blocking according to any one of claims 1 to 10,
The method comprises:
Organic sunscreen agents; Emulsifier, oil phase; And a water phase, and mixing the water phase and the water phase.

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